valve

Abstract

The present invention discloses a valve. In the present invention, the valve comprises a housing, a flange sealed to one end of the housing, an inner valve seat installed in a passage and sealed to the housing, a valve core movably installed in the passage, and a drive member that penetrates the housing and is connected to the mounting surface of the valve core. The housing has a passage that penetrates the housing, and a guide block is provided on the mounting surface of the valve core that protrudes toward the drive member. The guide block has an inner contour guide surface, and the drive member has a guide rib with an outer contour guide surface. The outer contour guide surface and the inner contour guide surface engage to drive the valve core and rotate it to a switching position along the radial direction of the passage. When the valve core is rotated to the switching position, one end of the valve core connected to the drive member is driven to move axially toward the inner valve seat, pressing the inner valve seat and closing the passage. Compared to the prior art, the valve has a compact and simple structure, is easy to operate, requires less torque when opening the valve, has a large opening angle, a large flow rate, and reliable sealing.

Description

Technical Field

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

[0002] "Filing date: May 8, 2023; Application number: 2023105113804; Invention title: Valve" The full text of the above application is incorporated herein by reference.

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

Background Art

[0004] For existing valves for medium-sized bulk storage containers, in order to better the use effect of the valve, it is necessary to optimize the opening and closing structure of the valve.

[0005] For example, an existing guide groove type lifting rod ball valve has an S-shaped guide groove on the valve stem. In combination with a guide pin, when the valve stem rises, after separating the ball from the valve seat, it is rotated 90° counterclockwise to fully open the valve. When the valve stem descends, the ball is driven to rotate 90° clockwise, and then pressed against the valve seat to realize valve closing. The disadvantages of this technology are that there is a long S-shaped guide groove on the valve stem, and the valve stem needs to rise or descend spirally in the guide groove during rotational opening and closing, so the occupied space of the guide groove is large and the rotation angle is large, etc.

[0006] Another rail type plug valve includes a valve body, a valve cover, an operating member, a valve stem, a valve seat, a valve plug that forms a conical surface seal pair with the valve seat, and a rail type mechanism. The rail type mechanism is composed of a rail ring having two guide grooves attached to the neck of the valve plug and a double pin plate with two guide pins inserted into the guide grooves, and further includes a lock nut and an adjustment ring for adjusting the attachment position of the rail ring. However, in this valve, the structure of the transmission device is complex, it occupies a very large external space of the valve body, the number of parts related to the transmission device is large, and the assembly process is also complex. [Overview of the project]

[0007] The object of the present invention is to provide a valve that is compact and simple in structure, easy to operate, has low torque when opening, a large opening angle, a large flow rate, and reliable sealing.

[0008] To solve the above-mentioned technical problems, an embodiment of the present invention comprises a housing, a flange, an inner valve seat, a valve core, and a drive member. The housing has a passage that penetrates the housing, The flange is sealed and connected to one end of the housing. The inner valve seat is installed in the passage and sealed to the housing. The valve core is movably installed within the passage. The drive member penetrates the housing and is connected to the mounting surface of the valve core. The mounting surface of the valve core has a guide block that protrudes toward the drive member, and the guide block has an inner contour guide surface. The drive member has a guide rib having an outer contour guide surface, The present invention provides a valve in which the outer contour guide surface and the inner contour guide surface engage to drive the valve core to rotate along the radial direction of the passage to a switching position, and when the valve core is rotated to the switching position, one end of the valve core connected to the drive member is driven to move axially toward the inner valve seat, thereby pressing the inner valve seat and closing the passage.

[0009] In one embodiment, the drive member has positioning columns, transient columns, and connecting columns that are sequentially connected from inside the passage outwards, the positioning columns being operably inserted into the mounting surface of the valve core, the guide ribs protruding from the outer circumference of the transient columns, and the connecting columns being connected to the housing and penetrating the housing.

[0010] In one embodiment, the positioning column, the transient column, the guide rib, and the connecting column are an integrated component.

[0011] In one embodiment, the valve core has a positioning lever protruding from the side 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 positioning lever is rotatably inserted into the lever hole. 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 positioned opposite the lever hole.

[0012] In one embodiment, a guide column is provided protruding from one end of the valve core toward the drive member, The housing is provided with a guide groove that opens toward the valve core, and the guide groove extends in the axial direction of the passage. When the valve core is rotated to the switching position, the guide column faces the groove opening of the guide groove, and the drive member drives the valve core to move axially toward the inner valve seat, thereby inserting the guide column into the guide groove.

[0013] In one embodiment, the guide block has a first guide submodule and a second guide submodule installed opposite each other and spaced apart, the inner contour guide surface has a first guide module surface and a second guide module surface, the first guide module surface and the second guide module surface are installed opposite each other and spaced apart, located in the first guide submodule and the second guide submodule, respectively, and the guide column is provided in the second guide submodule. The first guide module surface has a first starting portion, a first ending portion, and a first limiting portion that are sequentially connected and extend in different directions, and the second guide module surface has a second starting portion, a second ending portion, and a second limiting portion that are sequentially connected and extend in different directions. The outer contour guide surface has a first drive module surface and a second drive module surface that are positioned opposite and spaced apart from each other. The first drive module surface has a first drive surface and a first tension surface that are connected sequentially, and the second drive module surface has a second drive surface and a second tension surface that are connected sequentially. The first tension surface slides operablely along the first start portion until it engages with the first limit portion, the first drive surface engages with the first end portion, the guide column slides out of the guide groove, and the first tension surface engages with the first limit portion and drives operablely to rotate the valve core in the radial direction of the passage, thereby rotating the guide column away from the guide groove. The second tension surface slides operablely along the second start portion until it engages with the second limit portion, the second drive surface engages with the second end portion, the guide column slides into the guide groove from the opening of the guide groove, and the second tension surface engages with the second limit portion, driving the valve core to rotate radially in the passage and rotating the guide column toward the guide groove.

[0014] In one embodiment, the housing is provided with a limit edge extending toward the mounting hole, and the guide column contacts the limit edge when the valve core is rotated to the switching position.

[0015] In one embodiment, a guide circulating edge is provided in the mounting hole, and when the valve core rotates in the radial direction of the passage, the guide column slides along the guide circulating edge.

[0016] In one embodiment, the valve core has a flattened structure, The valve core comprises a valve disc and a first extension plate and a second extension plate, the first extension plate and the second extension plate being installed opposite each other and located on the side of the valve disc away from the inner valve seat, The guide block is installed on the upper surface of the first extension plate, The positioning lever is provided on the bottom surface of the second extension plate.

[0017] In one embodiment, a housing limit rib is provided on the wall surface of the passage, between the lever hole and the inner valve seat. A first valve core limit rib and a second valve core limit rib are provided on the side of the valve core away from the drive member. When the valve core is in the switching position, the first valve core limit rib abuts against the housing limit rib. When the valve core is in the maximum flow rate position of the valve, the second valve core limit rib abuts against the housing limit rib.

[0018] In one embodiment, the valve comprises a housing connection member detachably connected to the other end of the housing, an outer valve seat installed in the housing connection member and hermetically connected to the housing connection member, and a valve cover detachably connected to the housing connection member and sealingly abutting against the outer valve seat when sealing the housing connection member.

[0019] Compared with the prior art, in the embodiment of the present invention, the drive member penetrates through the housing and is directly connected to the valve core. When the drive member moves, the outer contour guide surface of the guide rib and the inner contour guide surface of the guide block move the valve core, so that the valve core can be rotated and axially moved, thereby closing or opening the passage. The connection structure between the drive member and the valve core is simple, the structure is compact, the operation is simple, when the valve is opened, the torque is small, the opening angle is large, the flow rate is large, and the sealing performance is reliable.

Brief Description of the Drawings

[0020] One or more embodiments are illustratively described by the figures in the corresponding 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 specifically described. [Figure 1] Figure 1 is an exploded view of a valve according to an embodiment of the present invention. [Figure 2] Figure 2 is a cross-sectional view of a valve according to an embodiment of the present invention. [Figure 3] Figure 3 is a schematic configuration diagram of a housing according to an embodiment of the present invention. [Figure 4] Figure 4 is a schematic configuration diagram of a drive member according to an embodiment of the present invention. [Figure 5] Figure 5 is a schematic configuration diagram of a valve core at a certain angle according to an embodiment of the present invention. [Figure 6] Figure 6 is a schematic configuration diagram of the valve core at another angle according to an embodiment of the present invention. [Figure 7] Figure 7 is a schematic diagram of the position where the handle of the drive member is located when the flow rate in the valve is maximum in an embodiment of the present invention. [Figure 8] Figure 8 is a schematic configuration diagram of the fitting of the housing and the valve core in Figure 7. [Figure 9] Figure 9 is a cross-sectional view of the fitting of the drive member and the valve core in Figure 7. [Figure 10] Figure 10 is a plan cross-sectional view of the fitting of the drive member and the valve core in Figure 7. [Figure 11] Figure 11 is a schematic diagram of the position where the handle of the drive member is located when the valve core is in the switching position 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 plan cross-sectional view of the fitting of the drive member and the valve core in Figure 11. [Figure 14]Figure 14 is a schematic diagram showing the position of the handle of the drive member when the valve is closed in one embodiment of the present invention. [Figure 15] Figure 15 is a schematic diagram showing the fitting configuration of the housing and valve core in Figure 14. [Figure 16] Figure 16 is a plan cross-sectional view showing the fitting of the drive member and valve core in Figure 14. [Figure 17] Figure 17 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 14. [Figure 18] Figure 18 is a schematic diagram showing the fitting configuration of the housing and valve core in Figure 17. [Figure 19] Figure 19 is a plan cross-sectional view showing the fitting of the drive member and valve core in Figure 17. [Figure 20] Figure 20 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 17. [Figure 21] Figure 21 is a schematic diagram showing the fitting configuration of the housing and valve core in Figure 20. [Figure 22] Figure 22 is a plan cross-sectional view showing the fitting of the drive member and valve core in Figure 20. [Figure 23] Figure 23 shows an explosion diagram of the valve cover, housing connecting member and housing in one embodiment of the present invention.

[0021] Description of the drawing 100, valve; 1, housing; 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 section; 4312, first end section; 4313, first limit section; 432, second guide submodule; 4321, second start section; 4322, second end section; 4323, second limit section; 44, guide column; 45, First extension plate; 46, Second extension plate; 47, First valve core limit rib; 48, Second valve core limit rib; 5, Drive member; 51, Positioning column; 52, Transient column; 53, Connecting column; 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; 7, Outer valve seat; 8, Valve cover; 9, Flange seal ring. [Modes for carrying out the invention]

[0022] 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.

[0023] 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.

[0024] 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 inclusive meaning, i.e., “including, but not limited to.”

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0030] An embodiment of the present invention provides a valve 100. As shown in Figures 1 and 2, 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. Inside the housing 1, there is a passage 10 that penetrates the housing 1, and this passage 10 is a passage through which liquid from the container passes. The inner valve seat 2 is installed in 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 9 is sandwiched between the flange 3 and the housing 1, and the flange 3 is for abutting against the container. The valve core is movably installed in 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 toward 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 closes the passage 10 by contacting the inner valve seat 2, i.e., it presses the inner valve seat 2 to the right as shown in Figure 2.

[0031] Specifically, as shown in Figures 1, 2, 4, 5, and 9, the drive member 5 penetrates the housing 1 and is connected to the mounting surface 42 of the valve core 4. The mounting surface 42 of the valve core 4 is provided with a guide block 43 that protrudes toward the drive member 5, and the guide block 43 has an inner contour guide surface. The drive member 5 is equipped with a guide rib 55 having an outer contour guide surface 530, and the outer contour guide surface 530 engages with the inner contour guide surface to rotate the valve core 4 to a switching position in the radial direction of the passage 10. 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, pressing the inner valve seat 2 and closing the passage 10.

[0032] As is clear from the above description, the drive member 5 is directly connected to the valve core 4 by passing through the housing, and when the drive member 5 moves, the valve core 4 becomes movable due to the outer contour guide surface 530 of the guide rib 55 and the inner contour guide surface of the guide block 43. As a result, the valve core 4 can rotate and move along its axis, thereby closing or opening the passage 10. The connection structure between the drive member 5 and the valve core 4 is simple, compact, and easy to operate. When the valve is opened, the torque is small, the opening angle is large, the flow rate is high, and the sealing performance is reliable.

[0033] Furthermore, as shown in Figures 2, 4, and 5, the drive member 5 has a positioning column 51, a transient column 52, and a connecting column 53 that are sequentially connected from inside to outside the passage 10. The positioning column 51 is operably inserted into the mounting surface 42 of the valve core 4, a guide rib 55 protrudes from the outer circumference of the transient column 52, and the connecting column 53 is connected to the housing 1 and penetrates the housing 1.

[0034] Furthermore, as shown in Figures 1, 2, 4, 5, and 9, the positioning column 51, the transient column 52, the guide rib 55, and the connecting column 53 are integral parts. The drive member 5 further has a handle 54 connected to the connecting column 53, and the handle 54 is located outside the housing 1.

[0035] Furthermore, as shown in Figures 1, 2, 3, 4, and 6, 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 when the drive member 5 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.

[0036] Furthermore, as shown in Figures 5, 9, 10, 13, and 16, 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 11, 12, and 13, 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, thereby inserting the guide column 44 into the guide groove 14. In this embodiment, as shown in Figure 13, 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 16, and achieving a seal when the valve core 4 and the inner valve seat 2 come into close contact as shown in Figure 15. When the valve core 4 moves axially toward or toward 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 toward the inner valve seat 2, allowing the valve core 4 to come into close contact with the inner valve seat 2, thereby improving the valve closing effect.

[0037] Furthermore, as shown in Figure 5, 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 3, 9, and 10, 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 16 through Figure 19 to Figure 10, 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 is operablely driven to rotate the valve core 4 in the radial direction of the passage 10, and the guide column 44 rotates away from the guide groove 14.As the drive member is rotated clockwise in the process shown in Figures 13 to 16, 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.

[0038] Furthermore, as shown in Figures 9 and 13, 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.

[0039] Furthermore, as shown in Figures 9 and 10, 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 rotates 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 13, 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.

[0040] Furthermore, as shown in Figures 5 and 6, the valve core 4 has a flattened structure. The valve core 4 has 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.

[0041] Furthermore, as shown in Figures 2, 3, and 6, 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 11, 12, and 13, 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 7, 8, 9, and 10, 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.

[0042] Furthermore, as shown in Figure 23, the valve 100 further comprises a housing connecting member 6, an outer valve seat 7, and a valve cover 8. The housing connecting member 6 is detachably connected to the other end of the housing 1. The outer valve seat 7 is installed inside the 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 valve cover 8 seals the housing connecting member 6, the valve cover 8 makes a sealed contact with the outer valve seat 7. By providing 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 of the housing connecting member 6 that is covered by the valve cover 8 can be set to a standard discharge diameter as needed. Also, in some embodiments, depending on the process, the housing connecting part 6 may not be necessary, in which case the valve cover 8 may directly cover the opening end on the left side of the housing 1.

[0043] Specifically, as shown in Figure 7, when the valve 100 is fully open and the axis of the valve core 4 is perpendicular to the direction in which the passage 10 extends, 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 7 to the position shown in Figure 11, the valve core 4 is rotated from Figure 8 to the position shown in Figure 12, 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 11, 12, and 13, 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 14, 15, and 16, 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 moves axially 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.

[0044] If it is necessary to open the valve after closing it, rotate the drive member 5 counterclockwise, and as shown in Figures 17, 18, and 19, bring the first tension surface 5312 into contact with the first start portion 4311, slide the first tension surface 5312 along the first start portion 4311 until it engages with the first limit portion 4313, and engage the first drive surface 5311 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 16 to the state in Figure 19, 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 20, 21, and 22, until the valve is opened to the maximum flow rate state, that is, as shown in Figure 8.

[0045] In this embodiment, the valve core 4 engages with the inner valve seat 2 to close the valve, that is, the valve core presses the inner valve seat 2 toward the container to close the valve. In other embodiments, the valve core may press the inner valve seat 2 toward the valve cover 8 to close the valve.

[0046] 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.

[0047] 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.

[0048] 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, a flange, an inner valve seat, a valve core, and a drive member. The housing has a passage that penetrates the housing, The flange is sealed and connected to one end of the housing. The inner valve seat is installed in the passage and sealed to the housing. The valve core is movably installed within the passage. The drive member penetrates the housing and is connected to the mounting surface of the valve core. A guide block is provided on the mounting surface of the valve core, projecting toward the drive member, and the guide block has an inner contour guide surface. The drive member has a guide rib having an outer contour guide surface, A valve characterized in that the outer contour guide surface and the inner contour guide surface fit together to drive the valve core to rotate along the radial direction of the passage to a switching position, and when the valve core is rotated to the switching position, one end of the valve core connected to the drive member is driven to move axially toward the inner valve seat, pressing the inner valve seat and closing the passage.

2. The valve according to claim 1, wherein the drive member has positioning columns, transient columns, and connecting columns sequentially connected from inside the passage outward from the passage, the positioning columns are operably inserted into the mounting surface of the valve core, the guide ribs protrude from the outer circumference of the transient columns, and the connecting columns are connected to the housing and penetrate the housing.

3. The valve according to claim 2, characterized in that the positioning column, the transient column, the guide rib, and the connecting column are an integrated part.

4. A positioning lever is provided on the valve core, protruding from the side away from the drive member, a lever hole is provided in the wall surface of the passage for inserting the positioning lever, and the positioning lever is rotatably inserted into the lever hole. The valve according to claim 1, characterized in that the housing is provided with a mounting hole through which the drive member passes, the mounting hole communicates with the passage, and the mounting hole is provided opposite the lever hole.

5. A guide column is provided protruding from one end of the valve core toward the drive member, The valve according to claim 4, wherein the housing is provided with a guide groove that opens toward the valve core, and the guide groove extends in the axial direction of the passage, and when the valve core is rotated to the switching position, the guide column faces the groove opening of the guide groove, and the drive member drives the valve core to move axially toward the inner valve seat, thereby inserting the guide column into the guide groove.

6. The guide block has a first guide submodule and a second guide submodule installed opposite each other and spaced apart, the inner contour guide surface has a first guide module surface and a second guide module surface, the first guide module surface and the second guide module surface are installed opposite each other and spaced apart, located in the first guide submodule and the second guide submodule, respectively, and the guide column is provided in the second guide submodule. The first guide module surface has a first starting portion, a first ending portion, and a first limiting portion that are sequentially connected and extend in different directions, and the second guide module surface has a second starting portion, a second ending portion, and a second limiting portion that are sequentially connected and extend in different directions. The outer contour guide surface has a first drive module surface and a second drive module surface that are positioned opposite and spaced apart from each other. The first drive module surface has a first drive surface and a first tension surface that are connected sequentially, and the second drive module surface has a second drive surface and a second tension surface that are connected sequentially. The first tension surface slides operablely along the first start portion until it engages with the first limit portion, the first drive surface engages with the first end portion, the guide column slides out of the guide groove, and the first tension surface engages with the first limit portion and drives operablely to rotate the valve core radially in the passage, thereby rotating the guide column away from the guide groove. The valve according to claim 5, characterized in that the second tension surface slides operablely along the second start portion until it engages with the second limit portion, the second drive surface engages with the second end portion, the guide column slides into the guide groove from the opening of the guide groove, and the second tension surface engages with the second limit portion to drive the valve core so as to rotate the valve core radially in the passage, thereby rotating the guide column toward the guide groove.

7. The valve according to claim 5, wherein the housing is provided with a limit edge extending toward the mounting hole, and the guide column contacts the limit edge when the valve core is rotated to the switching position.

8. The valve according to claim 5, characterized in that a guide circulating edge is provided in the mounting hole, and when the valve core rotates in the radial direction of the passage, the guide column slides along the guide circulating edge.

9. The valve core has a flattened structure, The valve core comprises a valve disc and a first extension plate and a second extension plate, the first extension plate and the second extension plate being installed opposite each other and located on the side of the valve disc away from the inner valve seat. The guide block is installed on the upper surface of the first extension plate, The valve according to claim 4, characterized in that the positioning lever is provided on the bottom surface of the second extension plate.

10. A housing limit rib is provided on the wall surface of the passage, located between the lever hole and the inner valve seat. The valve according to claim 4, wherein a first valve core limit rib and a second valve core limit rib are provided on the side of the valve core away from the drive member, and when the valve core is in the switching position, the first valve core limit rib abuts against the housing limit rib, and when the valve core is in the maximum flow position of the valve, the second valve core limit rib abuts against the housing limit rib.

11. The aforementioned valve is A housing connecting member is detachably connected to the other end of the housing, An outer valve seat installed within the housing connecting member and sealed to the housing connecting member, The valve according to claim 1, 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.

Images