valve

Abstract

The present invention discloses a valve comprising a housing (1), an inner valve seat (2) installed in a passage and sealedly connected to the housing (1), a flange (3) located at one end of the housing (1), a valve core (4) movably installed in the passage and located on the side of the inner valve seat (2) away from the flange (3), and a drive member (5) that penetrates the housing (1) and moves the valve core (4) toward the flange (3) to press and contact the inner valve seat (2) to close the passage, or moves the valve core (4) away from the inner valve seat (2) to open the passage, wherein the housing (1) has a passage that penetrates the housing (1), and when the valve is closed, the valve core (4) applies a pressing force toward the container to the inner valve seat (2), resulting in a better sealing effect.

Description

Technical Field

[0001] This patent application claims the priority of the following Chinese patent application.

[0002] "Filing Date: May 8, 2023; Application Number: 2023105113908; Invention Title: Valve" The full text of the above application is incorporated herein by reference.

[0003] The present invention relates to a storage container, particularly to a valve.

Background Art

[0004] The opening and closing method of an existing valve for a medium-sized bulk storage container, such as a butterfly valve, is selected by a rotating shaft in the center of the valve core. The two sides of the valve core are rotated to open. The valve core is generally located inside the valve body, and its flow rate is affected by the valve core and the rotating shaft. In the conventional valve seal, the valve core facing the threaded mouth direction presses the seal ring, that is, presses in the direction away from the container to achieve the seal. In such a seal form, when high-temperature steam disinfection is required, the steam gives a thrust to the valve core in the direction of the container. Even if the valve core has a thrust away from the seal ring, the seal effect between the valve core and the seal ring deteriorates. Leakage easily occurs even when the valve is closed, and the seal effect deteriorates.

Summary of the Invention

[0005] An object of the present invention is to provide a valve with a better seal effect when sealing the valve.

[0006] To solve the above technical problems, an embodiment of the present invention includes a housing, an inner valve seat, a flange, a valve core, and a driving member. The housing has a passage penetrating the housing. [[ID=3​The flange is located at one end of the housing, The valve core is movably installed within the passage and is located on the side of the inner valve seat away from the flange. The present invention provides a valve in which the drive member penetrates the housing, moves the valve core toward the flange, presses it into contact with the inner valve seat to close the passage, or moves the valve core away from the inner valve seat to open the passage.

[0007] In one embodiment, the valve further comprises a housing connecting member located at one end of the housing facing the flange or at the other end away from the flange, and detachably connected to the housing.

[0008] In one embodiment, the housing connecting member is connected to the housing by engagement or screw connection.

[0009] In one embodiment, the housing connecting member is engaged and connected to the housing, and the housing connecting member has a first connecting portion inserted into the housing and a second connecting portion located outside the housing, and a first engaging member is provided on the outer wall surface of the first connecting portion. A second engaging member is provided on the inner surface of the housing, which engages with the first engaging member.

[0010] In one embodiment, a housing seal ring is sandwiched between the housing connecting member and the housing.

[0011] In one embodiment, the housing connecting member is engaged and connected to the housing, and a circumferential housing groove is provided on the end face of the housing to which the housing connecting member is connected, and the housing groove is open toward the passage. The housing connecting member has a connecting member projection that engages with the housing groove, and the housing connecting member abuts against the end face of the housing at one end that connects to it.

[0012] In one embodiment, the housing connecting member is located at one end of the housing away from the flange, and the valve is An outer valve seat installed within the housing connecting member and sealed to the housing connecting member, The system further includes a valve cover that is detachably connected to the housing connecting member and seals against the outer valve seat when the housing connecting member is sealed.

[0013] In one embodiment, the housing connecting member is located at one end of the housing facing the flange, and the housing connecting member and the flange are either a single integrated part or two separate parts that are detachably connected.

[0014] In one embodiment, an inner valve seat locking member is provided within the passage, positioned around the axis of the passage, and a locking region is formed between the outer ring surface of one end of the inner valve seat locking member away from the flange and the passage, and the end of the inner valve seat locking member away from the flange has a protruding rib, the inner valve seat is operably positioned in part within the locking region and the other part is outside the locking region, and the protruding rib is operably engaged with the inner valve seat.

[0015] In one embodiment, the valve core has a flattened structure, a positioning lever is provided on the side of the valve core away from the drive member, a lever hole is provided in the wall surface of the passage for insertion of the positioning lever, and the drive member drives the valve core to rotate it around the axis of the positioning lever. When the valve core is rotated to the closed position, the valve core comes into contact with the inner valve seat and closes the passage.

[0016] In one embodiment, the housing is provided with a mounting hole through which the drive member passes, the mounting hole is in communication with the passage, and the mounting hole is provided opposite the lever hole. One end of the valve core facing the drive member has a mounting surface, and the mounting surface has a guide block protruding toward the drive member, the guide block has an inner contour guide surface, and the positioning column of the drive member is inserted into the mounting surface. The drive member has a guide rib having an outer contour guide surface, and the outer contour guide surface and the inner contour guide surface engage to rotate the valve core around the axis of the positioning lever, and when the valve core is rotated to the switching position, one end of the valve core connected to the drive member moves axially toward the inner valve seat to press the inner valve seat. When the valve is closed, the valve core is operable to receive liquid pressure, and the direction of the liquid pressure is opposite to the direction in which the valve core presses against the inner valve seat.

[0017] In the embodiments of the present invention, compared to the prior art, the drive member moves the valve core toward the flange to press it into contact with the inner valve seat to close the passage, or moves the valve core away from the inner valve seat to open the passage. As a result, when the valve is closed, the valve core applies a pressing force toward the inner valve seat toward the container. Even when the valve core is subjected to thrust toward the container by steam, the sealing effect between the valve core and the inner valve seat is further improved, the valve exhibits better sealing performance, and liquid leakage is less likely when the container is closed using this valve. [Brief explanation of the drawing]

[0018] One or more embodiments are illustrated by corresponding figures in the drawings, and these illustrative descriptions do not constitute limitations of the embodiments, elements having the same reference numeral in the drawings are represented as similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise specified. [Figure 1] Figure 1 shows an explosion diagram of a valve according to one embodiment of the present invention. [Figure 2] Figure 2 shows an explosion diagram of the housing connecting member and housing in one embodiment of the present invention. [Figure 3] Figure 3 is an assembly schematic diagram of the housing connection member and the housing in Figure 2. [Figure 4] Figure 4 is a schematic diagram embodying the internal structure of the housing in an embodiment of the present invention. [Figure 5] Figure 5 is an exploded view of the housing connection member and the housing in another embodiment of the present invention. [Figure 6] Figure 6 is a cross-sectional view of a valve according to another embodiment of the present invention. [Figure 7] Figure 7 is a schematic diagram of the configuration of a housing according to an embodiment of the present invention. [Figure 8] Figure 8 is a schematic diagram of the configuration of a drive member according to an embodiment of the present invention. [Figure 9] Figure 9 is a schematic diagram of the configuration of a valve core at a certain angle according to an embodiment of the present invention. [Figure 10] Figure 10 is a schematic configuration diagram of the valve core at another angle according to an embodiment of the present invention. [Figure 11] Figure 11 is a schematic diagram of the handle position of the drive member when the flow rate in the valve is maximum in an embodiment of the present invention. [Figure 12] Figure 12 is a schematic configuration diagram of the fitting of the housing and the valve core in Figure 11. [Figure 13] Figure 13 is a cross-sectional view of the fitting of the drive member and the valve core in Figure 11. [Figure 14] Figure 14 is a plane cross-sectional view of the fitting of the drive member and the valve core in Figure 11. [Figure 15] Figure 15 is a schematic diagram showing the position of the handle of the drive member when the valve core is in the switching position in an embodiment of the present invention. [Figure 16] Figure 16 is a schematic configuration diagram of the fitting of the housing and the valve core in Figure 15. [Figure 17] Figure 17 is a plane cross-sectional view of the fitting of the drive member and the valve core in Figure 15. [Figure 18] Figure 18 is a schematic diagram showing the position of the handle of the drive member when the valve is closed in an embodiment of the present invention. [Figure 19] Figure 19 is a schematic diagram showing the fitting configuration of the housing and valve core as shown in Figure 18. [Figure 20] Figure 20 is a plan cross-sectional view of the fitting between the drive member and the valve core in Figure 18. [Figure 21] Figure 21 is a schematic diagram showing the position of the handle of the drive member after the guide column slides into the guide groove during the process of opening the valve from the closed state shown in Figure 18. [Figure 22] Figure 22 is a schematic diagram showing the fitting configuration of the housing and valve core in Figure 21. [Figure 23] Figure 23 is a plan cross-sectional view of the fitting between the drive member and the valve core in Figure 21. [Figure 24] Figure 24 is a schematic diagram showing the position of the handle of the drive member after the valve core has been rotated by a certain angle during the process of opening the valve from the state shown in Figure 21. [Figure 25] Figure 25 is a schematic diagram showing the fitting configuration of the housing and valve core as shown in Figure 24. [Figure 26] Figure 26 is a plan cross-sectional view of the fitting between the drive member and the valve core in Figure 24.

[0019] Description of the drawing 100, valve; 1, housing; 11, second engaging member; 13, mounting hole; 14, guide groove; 15, lever hole; 16, limit edge; 17, housing limit rib; 18, guide circulating edge; 2, inner valve seat; 3, flange; 4, valve core; 41, positioning lever; 42, mounting surface; 43, guide block; 431, first guide submodule; 4311, first start; 4312, first end; 4313, first limit; 432, second guide submodule; 4321, second start; 4322, second end; 4323, second limit; 44, guide column; 45, first extension plate; 46, second extension plate; 47, first valve core limit rib; 48, 2 valve core limit ribs; 5, drive member; 51, positioning column; 53, drive lever; 54, handle; 55, guide rib; 530, outer contour guide surface; 531, first guide module surface; 5311, first drive surface; 5312, first tension surface; 532, second guide module surface; 5321, second drive surface; 5322, second tension surface; 10, passage; 6, housing connecting member; 61, first connection part; 611, first engaging member; 62, second connection part; 63, connecting member projection; 7, outer valve seat; 8, valve cover; 91, housing seal ring; 12, housing groove; 92, inner valve seat locking member; 93, protruding rib; 94, locking area; 95, flange seal ring. [Modes for carrying out the invention]

[0020] To further clarify the objectives, technical solutions, and advantages of the embodiments of the present invention, each embodiment of the present invention will be described in detail below, accompanied by the accompanying drawings. However, those skilled in the art will understand that many technical details are provided in each embodiment of the present invention to help the reader better understand this application. However, the technical solutions for which protection is sought in this application can be realized without these technical details and the various changes and modifications based on the embodiments below.

[0021] In the following description, for the purpose of illustrating each disclosed embodiment, certain specific details are included to fully understand each disclosed embodiment. However, those skilled in the art should recognize that the embodiments may be carried out without one or more of these specific details. In other cases, well-known devices, configurations, and technologies related to this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0022] Unless specifically required by the context, the word “equipped with” and its variations, such as “including” and “possess,” should be understood throughout the specification and claims as having an open and comprehensive meaning, i.e., “including, but not limited to.”

[0023] Hereinafter, each embodiment of the present invention will be described in detail in conjunction with the drawings in order to better understand the object, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of protection of the present invention, but merely to illustrate the essential spirit of the technical solution of the present invention.

[0024] Any reference to “one embodiment” or “one example” throughout the specification means that any particular feature, configuration, or characteristic described in the embodiment is included in at least one embodiment. Therefore, not all instances of “in one embodiment” or “in one example” throughout the specification refer to the same embodiment. Furthermore, any particular feature, configuration, or characteristic may be combined in any way in one or more embodiments.

[0025] As used herein and in the attached claims, the singular forms “one” and “the foregoing” also include plural referents unless the context explicitly states otherwise. The term “or” is generally used to include “and / or” unless the context explicitly states otherwise.

[0026] In the following description, many directional terms are used to clearly illustrate the structure and operation of the present invention. However, terms such as "front," "back," "left," "right," "outside," "inside," "facing outwards," "facing inwards," "up," and "down" should be understood as terms of convenience rather than restrictive terms.

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0028] An embodiment of the present invention provides a valve 100. As shown in Figures 1 and 3, the valve 100 comprises a housing 1, an inner valve seat 2, a flange 3, a valve core 4, and a drive member 5. The inner valve seat 2 may be a seal ring member, and the inner valve seat 2 may be located inside the housing 1. The valve 100 can be used attached to a container to prevent liquid from flowing out of the container when the valve is closed, and when the valve is opened, the liquid inside the valve can flow into the passage inside the valve via the passage in the flange before being discharged. A passage 10 is provided inside the housing 1, which penetrates the housing 1 and allows liquid from the container to pass through. The inner valve seat 2 is installed inside the passage 10 and is sealed to the housing 1. A flange 3 is located at one end of the housing 1, and a flange seal ring 95 is sandwiched between the flange 3 and the housing 1, and the flange 3 is for abutting against a container. The valve core is movably installed inside the passage 10 and is located on the side of the inner valve seat 2 away from the flange 3. The drive member 5 penetrates the housing 1 and drives the valve core 4 toward the flange 3 to press against the inner valve seat 2 and close the passage 10, or drives the valve core 4 away from the inner valve seat 2 and open the passage 10. When the valve is closed, the inner valve seat 2 is operable to receive the pressure of the liquid, and the direction of the liquid pressure is opposite to the direction in which the valve core presses against the inner valve seat 2. That is, when the valve is closed, the valve core 4 presses against the inner valve seat 2 toward the container and contacts the inner valve seat 2 to close the passage 10, i.e., presses the inner valve seat 2 to the right as shown in Figure 3.

[0029] As is clear from the above description, when the valve is closed, the valve core applies a pressing force toward the container toward the inner valve seat by moving the drive member toward the flange direction and pressing it into contact with the inner valve seat to close the passage, or by moving the valve core toward the inner valve seat to open the passage. When steam sterilization is performed on the front of the valve, the steam applies pressure toward the container toward the valve core, which corresponds to a tighter compression between the valve core and the inner valve seat, resulting in an increasingly better seal, the valve can withstand the requirements of high-temperature steam sterilization on the front of the valve, and liquid is less likely to leak when using this valve to close a container.

[0030] The implementation details of this embodiment will be described below, however, the following details are provided only for the sake of ease of understanding and are not essential for implementing this solution.

[0031] Furthermore, as shown in Figures 2 and 3, the valve 100 further includes a housing connecting member 6 that is detachably connected to the other end of the housing 1, with flanges and housing connecting member 6 located at both ends of the housing connecting member 6, respectively. When installing the inner valve seat 7, if the housing connecting member 6 is separated from the housing 1, the inner valve seat 7 and components such as the valve core 4 can be installed inside the housing 1, and then the housing 1 connecting member and the housing connecting member 6 can be installed together, making it easy to install the inner valve seat 7 and components such as the valve core 4 inside the housing. By installing the housing connecting member 6, the opening diameter on the left side of the housing 1 can be increased, the valve core 4 and inner valve seat 2 in this embodiment can be easily installed inside the housing, and the diameter of the opening end covered by the valve cover 8 of the housing connecting member 6 can be set to a standard discharge diameter as needed. Also, in some embodiments, depending on the process, the housing connecting member 6 may not be necessary, in which case the valve cover 8 may directly cover the left opening end of the housing 1, or the housing connecting member may be understood as part of the housing itself.

[0032] Alternatively, in other embodiments, the housing connecting member is positioned between the housing and the flange, connecting the housing and the flange, and in this case, when installing components such as the inner valve seat and valve core, it can be inserted into the housing from one end facing the flange of the housing. The housing connecting member and the flange may be a single unit of an integrated connecting member, or they may be two parts that are detachably connected.

[0033] Furthermore, as shown in Figure 1, the valve 100 further comprises an outer valve seat 7 and a valve cover 8. The outer valve seat 7 is installed within a housing connecting member 6 and is sealed to the housing connecting member 6. The valve cover 8 is detachably connected to the housing connecting member 6, and when the housing connecting member 6 is sealed, the valve cover 8 makes sealed contact with the outer valve seat 7. The valve cover 8 and the housing connecting member 6 can be screwed together, and the outer valve seat 7 may be a sealing ring member.

[0034] Furthermore, as shown in Figures 2, 3, and 5, the housing connecting member 6 is locked and connected to the housing 1.

[0035] Specifically, as shown in Figures 2 and 3, the housing connecting member 6 has a first connecting portion 61 inserted into the housing 1 and a second connecting portion 62 located outside the housing 1. A first engaging member 611 is provided on the outer wall surface of the first connecting portion 61, and a second engaging member 11 that fits and locks into the first engaging member 611 is provided on the inner surface of the housing 1. The first engaging member 611 is a convex portion, and the second engaging member 11 is a groove, allowing the convex portion to lock into the groove. In other embodiments, the first engaging member 611 may be a groove, and the second engaging member 11 may be a convex portion.

[0036] Furthermore, as shown in Figures 2 and 3, a housing seal ring 91 is sandwiched between the housing connecting member 6 and the housing 1.

[0037] In some embodiments, as shown in Figure 5, a circumferential housing groove 12 is provided on the end face of one end to which the housing connecting member 6 of the housing is connected, and the housing groove 12 is open toward the passage 10. The housing connecting member 6 is provided with a connecting member projection 63 that engages with the housing groove 12, and the housing connecting member 6 abuts against the end face of the housing 1 to which it is connected. This enables engagement and connection between the housing connecting member 6 and the housing 1.

[0038] In other embodiments, the housing connecting member 6 and the housing 1 can also be connected by screws.

[0039] Furthermore, as shown in Figures 3 and 4, an inner valve seat locking member 92 is provided within the passage 10, positioned around the axis of the passage 10. A locking region 94 is formed between the outer ring surface of one end of the inner valve seat locking member 92 away from the flange 3 and the passage 10, with a protruding rib 93 projecting from the other end of the inner valve seat locking member 92 away from the flange 3. The inner valve seat 2 is operably positioned with a portion within the locking region 94 and the other portion outside the locking region 94, and the protruding rib 93 is operably engaged with the inner valve seat 2. The inner valve seat locking member 92 and the housing 1 may be a single integrated part.

[0040] The valve core has a flattened structure, as in the butterfly valve in this embodiment, but it is understood that in other embodiments, it may have other structures such as a ball valve.

[0041] Furthermore, as shown in Figures 1, 6, 7, 8, and 10, a positioning lever 41 is provided on the valve core 4, protruding from the side away from the drive member 5. A lever hole 15 is provided in the wall of the passage 10 for insertion of the positioning lever 41. The positioning lever 41 is rotatably inserted into the lever hole 15, and the drive member 5 drives the valve core 4 to rotate around the axis of the positioning lever 41. When the drive member 5 drives and rotates the valve core 4, the positioning lever 41 rotates within the lever hole 15. The housing 1 is provided with a mounting hole 13 through which the drive member 5 passes. The mounting hole 13 communicates with the passage 10 and is located opposite the lever hole 15. When the valve core 4 is rotated to the closed position, i.e., the closed valve state shown in Figures 18, 19, and 20, the valve core 4 contacts the inner valve seat 2 and closes the passage 10. When rotated to another position, the closing surface of the valve core 4 shifts away from the passage 10, thereby opening the passage 10.

[0042] Furthermore, as shown in Figures 1, 6, 8, 9, and 13, the valve core 1 has a mounting surface 42 at one end facing the drive member 5, and a guide block 43 is provided on the mounting surface 42 that protrudes toward the drive member 5, and the guide block 43 has an inner contour guide surface. The positioning column 51 of the drive member 5 is inserted into the mounting surface 42, and the drive member 5 comprises a drive lever 53 and a handle 54 connected to the positioning column 51, the drive lever 53 is inserted into the mounting surface 42 through the mounting hole 13, the handle is located outside the housing 1 and connected to the drive lever 53, and pressing the handle 54 causes the drive lever 53 to rotate the valve core 4. The drive member 5 is equipped with a guide rib 55 having an outer contour guide surface 530. The outer contour guide surface 530 engages with the inner contour guide surface to rotate the valve core 4 around the axis of the positioning lever 41. When the valve core 4 is rotated to the switching position, one end of the valve core 4 connected to the drive member 5 moves axially toward the inner valve seat 2, driving it to press against the inner valve seat 2.

[0043] Furthermore, as shown in Figures 9, 13, 14, 17, and 20, a guide column 44 is provided protruding from one end of the valve core 4 toward the drive member 5. The housing 1 is provided with a guide groove 14 that opens toward the valve core 4, and the guide groove 14 extends along the axial direction of the passage 10. As shown in Figures 15, 16, and 17, when the valve core 4 is rotated to the switching position, the guide column 44 faces the groove opening of the guide groove 14, and the drive member 5 drives the end of the valve core connected to it to move axially toward the inner valve seat 2 so that the guide column 44 is inserted into the guide groove 14. In this embodiment, as shown in Figure 17, the guide column 44 is positioned outside the groove opening of the guide groove 14, i.e., at the switching position, and the drive member 5 continues to rotate. Without rotating the valve core 4, the drive member 5 shifts the valve core toward the inner valve seat 2 in the extending direction of the passage 10, inserting the guide column 44 into the guide groove 14 as shown in Figure 20, and achieving a seal when the valve core 4 and the inner valve seat 2 are in close contact as shown in Figure 19. When the valve core 4 moves axially toward or away from the inner valve seat 2, the portion of the valve core 4 connected to the drive member 5 may move, causing the entire valve core 4 to tilt slightly toward or away from the inner valve seat 2, allowing the valve core 4 to be in close contact with the inner valve seat 2, thereby improving the valve closing effect.

[0044] Furthermore, as shown in Figure 9, the guide block 43 has a first guide submodule 431 and a second guide submodule 432 which are installed opposite to each other and spaced apart, with a guide column 44 installed on the second guide submodule 432. As shown in Figures 7, 13, and 14, the inner contour guide surface has a first guide module surface 531 and a second guide module surface 532, which are installed opposite to each other and spaced apart, located on the first guide submodule 431 and the second guide submodule 432, respectively. The first guide module surface 531 has a first start portion 4311, a first end portion 4312, and a first limit portion 4313 which are sequentially connected and extend in different directions. The second guide module surface 532 has a second start portion 4321, a second end portion 4322, and a second limit portion 4323 which are sequentially connected and extend in different directions. The outer contour guide surface 530 has a first drive module surface 531 and a second drive module surface 532 that are positioned opposite each other and spaced apart. The first drive module surface 531 has a first drive surface 5311 and a first tension surface 5312 that are connected in sequence, and the second drive module surface 532 has a second drive surface 5321 and a second tension surface 5322 that are connected in sequence. In the process from Figure 20 through Figure 23 to Figure 14, when the drive member is rotated counterclockwise as shown, the first tension surface 5312 slides operablely along the first start portion 4311 until it fits into the first limit portion 4313, the first drive surface 5311 fits into the first end portion 4312, the guide column 44 slides out of the guide groove 14, the first tension surface 5312 fits into the first limit portion 4313 and drives the valve core 4 operablely to rotate in the radial direction of the passage 10, and rotates the guide column 44 away from the guide groove 14.As the drive member is rotated clockwise in the process shown in Figures 17 to 20, the second tension surface 5322 slides operably along the second start portion 4321 until it fits into the second limit portion 4323, the second drive surface 5321 fits into the second end portion 4322, the guide column 44 slides into the guide groove 14 from the opening of the guide groove 14, the second tension surface 5322 fits into the second limit portion 4323 and drives the valve core 4 to rotate radially in the passage 10, and rotates the guide column 44 toward the guide groove 14. In other embodiments, the guide block 43 may also be an integral part.

[0045] Furthermore, as shown in Figures 13 and 17, the housing is provided with a limit edge 16 that extends toward the mounting hole 13, and when the valve core 4 is rotated to the switching position, the guide column 44 comes into contact with the limit edge 16.

[0046] Furthermore, as shown in Figures 13 and 14, a guide circulating edge 18 is provided in the mounting hole 13, and a limit edge 16 is connected to the guide circulating edge 18. When the valve core is rotated radially in the passage 10, the guide column 44 slides along the guide circulating edge 18. The guide circulating edge 18 engages with the guide column 44 as the valve core rotates, limit guiding the valve core 4. When the guide column 44 slides along the guide circulating edge 18 until the valve core 4 is in the switching position shown in Figure 17, the guide column 44 comes into contact with the limit edge 16, and the valve core 4 moves axially toward the inner valve seat 2 without rotating when the drive member 5 rotates.

[0047] As shown in Figures 9 and 10, the valve core 4 comprises a valve disc and a first extension plate 45 and a second extension plate 46. The first extension plate 45 and the second extension plate 46 are installed opposite each other and are located on the side of the valve disc away from the inner valve seat 2. A guide block 43 is provided on the upper surface of the first extension plate 45, and a positioning lever 41 is provided on the bottom surface of the second extension plate 46.

[0048] Furthermore, as shown in Figures 6, 7, and 10, a housing limit rib 17 is provided on the wall surface of the passage 10, located between the lever hole 15 and the inner valve seat 2. On the side of the valve core away from the drive member 5, a first valve core limit rib 47 and a second valve core limit rib 48 are provided. As shown in Figures 15, 16, and 17, when the valve core 4 is in the switching position, the first valve core limit rib 47 abuts against the housing limit rib 17, and as shown in Figures 11, 12, 13, and 14, when the valve core 4 is in the maximum valve flow position, the second valve core limit rib 48 abuts against the housing limit rib 17.

[0049] Specifically, as shown in Figure 11, when the valve is fully open and the axis of the valve core 4 is perpendicular to the direction in which the passage 10 extends, then, as shown in Figures 13 and 14, the first tension surface 5312 abuts against the first limit portion 4313, the first drive surface 5311 abuts against the first termination portion 4312, and the connection point between the first tension surface 5312 and the first drive surface 5311 is located between the region formed by the first limit portion 4313 and the first termination portion 4312. The operation from the open to the closed state of the valve is as follows: the drive member 5 is rotated clockwise, the handle is rotated from Figure 11 to Figure 14, the valve core 4 is rotated from Figure 12 to Figure 16, the second tension surface 5322 contacts the second starting portion 4321, the guide rib 55 pushes the second guide submodule 432, and the drive member 5 rotates the valve core 4 radially in the passage 10. When rotated to the switching positions shown in Figures 15, 16, and 17, the valve core 4 faces the cross-section of the passage 10, the axis of the valve core 4 and the extending direction of the passage 10 substantially coincide, and the guide column 44 is positioned at the opening of the guide groove 14. If the drive member 5 is continued to rotate in the forward direction, the presence of the limit edge 16 causes the first valve core limit rib 47 to contact the housing limit rib 17 during the position switching. As shown in Figures 18, 19, and 20, when the second tension surface 5322 rotates in the forward direction and slides along the second starting portion 4321 until it engages with the second limit portion 4323, the valve core 4 is pushed by the guide rib 55 and axially moved toward the inner valve seat 2, pressing against the inner valve seat 2, and the guide column 44 slides into the guide groove 14 from the opening of the guide groove 14, thereby closing the valve.

[0050] If it is necessary to open the valve after closing it, the drive member 5 is rotated counterclockwise, and as shown in Figures 21, 22, and 23, the first tension surface 5312 is brought into contact with the first starting portion 4311, and the first tension surface 5312 slides along the first starting portion 4311 until it engages with the first limit portion 4313, and the first drive surface 5311 engages with the first end portion 4312, and the connection portion between the first tension surface 5312 and the first drive surface 5311 is The guide rib 55 is located between the region formed by the first limit portion 4313 and the first termination portion 4312. In this process, the guide rib 55 pushes the first guide submodule 431, causing the valve core 4 to move axially away from the inner valve seat 2, and the guide column 44 slides out of the guide groove 14, that is, from the state in Figure 20 to the state in Figure 23, so that the valve core 4 and the inner valve seat 2 do not come into close contact and the subsequent rotational movement of the valve core 4 is not hindered. If the drive member 5 is continued to rotate counterclockwise, the guide rib 55 pushes the first guide submodule 431, causing the valve core 4 to rotate counterclockwise. At this time, the valve core rotates radially in the passage 10, and the valve gradually opens as shown in Figures 24, 25, and 26, until the valve is opened to the maximum flow rate state, that is, as shown in Figure 12.

[0051] While preferred embodiments of the present invention have been described in detail above, it should be understood that the embodiments may be modified to provide additional embodiments using various patents, applications, and publications, as needed, to utilize the characteristics, features, and concepts of those inventions.

[0052] In light of the detailed description above, these and other modifications may be made to the embodiments. In general, the terms used in the claims should not be considered to be limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments, along with all equivalent scopes enjoyed by these claims.

[0053] Those skilled in the art will understand that the above embodiments are specific examples for carrying out the present invention, and that in actual application, various formal and detailed modifications are possible without departing from the spirit and scope of the invention.

Claims

1. It comprises a housing, an inner valve seat, a flange, a valve core, and a drive member. The housing has a passage that penetrates the housing, The inner valve seat is installed in the passage and sealed to the housing. The flange is located at one end of the housing, The valve core is movably installed within the passage and is located on the side of the inner valve seat away from the flange. A valve characterized in that the drive member penetrates the housing and moves the valve core toward the flange to press against the inner valve seat to close the passage, or moves the valve core away from the inner valve seat to open the passage.

2. The valve according to claim 1, further comprising a housing connecting member located at one end of the housing facing the flange or at the other end away from the flange, and detachably connected to the housing.

3. The valve according to claim 2, characterized in that the housing connecting member is engaged with or screwed to the housing.

4. The housing connecting member is engaged and connected to the housing, and the housing connecting member has a first connecting portion inserted into the housing and a second connecting portion located outside the housing, and a first engaging member is provided on the outer wall surface of the first connecting portion. The valve according to claim 3, characterized in that a second engaging member is provided on the inner surface of the housing, which engages with the first engaging member.

5. The valve according to claim 3, characterized in that a housing seal ring is sandwiched between the housing connecting member and the housing.

6. The housing connecting member is engaged and connected to the housing, and a circumferential housing groove is provided on the end face of one end of the housing to which the housing connecting member is connected, and the housing groove is open toward the passage. The valve according to claim 3, wherein the housing connecting member has a connecting member projection that engages with the housing groove, and the housing connecting member abuts against the end face of the housing at one end that is connected to it.

7. The housing connecting member is located at one end of the housing away from the flange, and the valve is An outer valve seat installed within the housing connecting member and sealed to the housing connecting member, The valve according to claim 2, further comprising a valve cover that is detachably connected to the housing connecting member and which seals against the outer valve seat when the housing connecting member is sealed.

8. The valve according to claim 2, characterized in that the housing connecting member is located at one end of the housing facing the flange, and the housing connecting member and the flange are either an integral part or two independent parts that are detachably connected.

9. The valve according to claim 1, wherein an inner valve seat locking member is provided within the passage, installed around the axis of the passage, the outer ring surface of one end of the inner valve seat locking member away from the flange and the passage are spaced apart to form a locking region, the end of the inner valve seat locking member away from the flange has a protruding rib, part of the inner valve seat is operably positioned within the locking region and the other part is positioned outside the locking region, and the protruding rib is operably engaged with the inner valve seat.

10. The valve core has a flattened structure, a positioning lever is provided on the side of the valve core away from the drive member, a lever hole is provided in the wall surface of the passage for insertion of the positioning lever, and the drive member drives the valve core to rotate around the axis of the positioning lever. The valve according to claim 1, characterized in that when the valve core is rotated to the closed position, the valve core abuts against the inner valve seat and closes the passage.

11. The housing is provided with a mounting hole through which the drive member passes, the mounting hole is in communication with the passage, and the mounting hole is provided opposite the lever hole. One end of the valve core facing the drive member has a mounting surface, and the mounting surface has a guide block protruding toward the drive member, the guide block has an inner contour guide surface, and the positioning column of the drive member is inserted into the mounting surface. The drive member has a guide rib having an outer contour guide surface, and the outer contour guide surface and the inner contour guide surface engage to rotate the valve core around the axis of the positioning lever, and when the valve core is rotated to the switching position, one end of the valve core connected to the drive member moves axially toward the inner valve seat to press the inner valve seat, The valve according to claim 9, characterized in that when the valve is closed, the valve core is operable to receive liquid pressure, and the direction of the liquid pressure is opposite to the direction in which the valve core presses against the inner valve seat.

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