valve

Abstract

This invention discloses a valve, including a valve body, a valve stem, a valve core, an actuator, and a connector. The valve body has a channel and a valve stem hole to partially accommodate the valve stem. The valve body has an outlet and an inlet communicating with the outside. At the inlet, the valve core is hinged to the valve body. The valve core includes a valve core body and a locking pin protruding from the valve core body towards the outlet side. The actuator is detachably connected to the valve stem and cooperates with the connector, so that the rotational movement of the valve stem is transmitted to the valve core through the connector and converted into a movement that drives the valve core to rotate around the hinge axis, thereby opening or closing the channel. The valve also includes a locking device that extends into the valve body and is fixedly connected to the valve stem. The connection between the connector and the valve core body, and the connection of the locking pin, are located on both sides of the center of the valve core. When the valve core closes the channel, the locking device is connected to the valve core, and the locking device provides a pulling force to the locking pin from the inlet to the outlet. This valve can maintain its sealing performance after multiple opening and closing.

Description

Technical Field

[0001] This invention relates to the field of valves, and particularly to a valve. Background Technology

[0002] Existing valves used for medium-sized bulk storage containers, such as butterfly valves, open by rotating a central shaft in the valve core. This shaft rotates the valve core to open it. Because the valve core is generally located inside the valve body, the flow rate is affected by the valve core and the rotating shaft, resulting in poor sealing. Due to friction between the butterfly valve's sealing ring and the valve body, the force required to open and close the valve is relatively large. A connector is typically used to connect the actuator to the valve core, allowing the actuator to drive the valve core's opening and closing. However, the connector is connected to the valve core's pin, which provides insufficient locking force for the valve core. Furthermore, the large flow rate during valve opening, coupled with repeated opening and closing, can cause deformation of the connector, leading to decreased locking force on the valve core and a deterioration in the valve's sealing performance. Summary of the Invention

[0003] The purpose of this invention is to provide a valve that can maintain its sealing performance after multiple opening and closing, thereby extending the valve's service life.

[0004] To solve the above-mentioned technical problems, embodiments of the present invention provide a valve, the valve including a valve body, a valve stem, a valve core, a actuator, and a connector; the valve body has a channel and a valve stem hole to at least partially accommodate the valve stem, the valve body has an outlet and an inlet communicating with the outside, and the valve core is hinged to the valve body at the inlet; the valve core includes a valve core body and a locking pin protruding from the valve core body toward the outlet side;

[0005] The actuator is detachably connected to the valve stem and cooperates with the connector, such that the rotational motion of the valve stem is transmitted to the valve core through the connector and converted into motion that drives the valve core to rotate about the hinge axis, so that the valve core opens or closes the channel.

[0006] The valve also includes a locking device that extends into the valve body and is fixedly connected to the valve stem; when the valve core closes the channel, the locking device is connected to the locking pin, and the connection between the connector and the valve core body and the locking pin are located on both sides of the center of the valve core, respectively.

[0007] When the valve core closes the channel, the locking device is connected to the valve core and provides a pulling force to the locking pin from the inlet to the outlet.

[0008] Compared with the prior art, the embodiments of the present invention add a locking device. When the valve is closed, not only does the connecting part exert a force on the valve core in the direction of the valve body outlet, but the locking device also exerts a force on the valve core in the direction of the valve body outlet. Even if the connecting part deforms after the valve is opened and closed multiple times, the locking device still exerts a force on the valve core in the direction of the valve body outlet, so that the valve core and the valve body are tightly connected and the channel is sealed, without affecting the locking force on the valve core and the sealing performance of the valve.

[0009] In one embodiment, the locking device has a protruding portion;

[0010] When the valve core closes the channel, the protrusion provides a pulling force to the locking pin from the inlet to the outlet.

[0011] In one embodiment, the protrusion protrudes toward the valve stem, the locking pin has a connecting portion connected to the valve core body, and a locking hook portion connected to the side of the connecting portion away from the valve core body; and the locking hook portion is bent and connected to the connecting portion, and extends toward the side of the locking device with the protrusion.

[0012] In one embodiment, the locking hook portion has a first sidewall facing the valve core body; the protrusion has a locking surface, and when the valve core closes the channel, the locking surface is away from the valve core body, the first sidewall abuts against the locking surface, and the locking surface provides a pulling force to the first sidewall in the direction from the inlet to the outlet.

[0013] In one embodiment, the protrusion has an initial side and an end side, and when the valve core closes the channel, the first sidewall is close to the end side;

[0014] The initial side is connected to a guide portion, and the guide portion protrudes outside the side edge of the locking device.

[0015] In one embodiment, the guide portion has a guide surface connected to the locking surface, both the locking surface and the guide surface being arc surfaces that convex outward in a direction away from the axis of the locking device, and the locking surface and the guide surface being on the same arc surface;

[0016] The distances between the locking surface and the guide surface and the axis of the locking device gradually decrease from the initial side to the end side. When the valve core closes the channel, the first sidewall abuts against the guide surface and the locking surface in sequence.

[0017] In one embodiment, the locking surface is an arcuate surface that convexes outward in a direction away from the axis of the locking device; wherein the protrusion has an initial side and an end side, and the distance between the locking surface and the axis of the locking device gradually decreases from the initial side to the end side.

[0018] In one embodiment, the protrusion is connected to the locking device, and the protrusion also has a stop surface;

[0019] The locking device has a side wall surface that is isolated from the locking surface, and the stop surface connects the locking surface and the side wall surface;

[0020] When the valve core closes the channel, the locking pin at least partially abuts against the stop surface.

[0021] In one embodiment, when the protrusion is located between the valve core body and the locking pin, the protrusion provides a pulling force to the locking pin in the direction from the inlet to the outlet.

[0022] In one embodiment, the protrusion is interference-fitted with the locking pin.

[0023] In one embodiment, the locking device includes a support rod and a locking element, wherein the two ends of the support rod are respectively fixedly connected to the valve stem and the locking element;

[0024] The protrusion protrudes from the locking member and surrounds the outer periphery of the support rod in the axial direction.

[0025] The locking pin has a connecting portion connected to the valve core body, and a locking hook portion connected to the side of the connecting portion away from the valve core body; and the locking hook portion is bent and connected to the connecting portion, and extends toward the side of the locking member toward the support rod.

[0026] In one embodiment, the valve body has a blind hole on the side facing the channel, and the blind hole is used to accommodate part of the locking member, with the protrusion located outside the blind hole.

[0027] In one embodiment, the valve stem is provided with a first mounting hole and a second mounting hole, the extension direction of the first mounting hole and the second mounting hole are perpendicular, and the first mounting hole communicates with the second mounting hole at least partially.

[0028] The driver is provided with a first mounting post and a second mounting post, which are operably inserted into the first mounting hole;

[0029] The support rod passes through the second mounting hole on the side facing the valve stem and is partially located in the first mounting hole, and the portion of the support rod located in the first mounting hole is clamped between the first mounting post and the second mounting post.

[0030] In one embodiment, the angle range of the support rod being rotated by the valve rod is between 160° and 170°.

[0031] In one embodiment, when the opening between the valve core and the valve body is at its maximum, the area of ​​the support rod facing the outer contour of the valve core is at its minimum.

[0032] In one embodiment, the support rod is a cuboid structure, and the support rod has a pair of opposing first side surfaces and a pair of opposing second side surfaces, the first side surfaces and the second side surfaces are connected at intervals, and the area of ​​the first side surface is larger than the area of ​​the second side surface.

[0033] When the opening between the valve core and the valve body is at its maximum, the second side surface faces the valve core.

[0034] In one embodiment, the line connecting the connection point of the connector and the valve core body to the locking pin passes through the center of the valve core;

[0035] The locking pin has a connecting portion connected to the valve core body, and a locking hook portion connected to the side of the connecting portion away from the valve core body; and the locking hook portion is bent and connected to the connecting portion, and extends toward the connection between the connector and the valve core body.

[0036] In one embodiment, the distance between the center of the valve core body and the center of the connection between the locking pin and the valve core body is m, the distance between the center of the valve core body and the boundary of the valve core body facing the inlet is n, and the line connecting the center of the valve core body and the boundary of the valve core body facing the inlet passes through the center of the connection between the locking pin and the valve core body; the range of m / n is 1 / 3 to 2 / 3. Attached Figure Description

[0037] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0038] Figure 1 This is an exploded view of a valve according to an embodiment of the present invention;

[0039] Figure 2This is a cross-sectional view of a valve according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the valve body according to an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the structure of a driver according to an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of a connector according to an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of the driver and connector in one embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the valve core and connecting piece in one embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the structure of a valve according to an embodiment of the present invention;

[0046] Figure 9 This is an exploded view of the handle, valve stem, and locking device combined according to an embodiment of the present invention;

[0047] Figure 10 This is a schematic diagram of the valve core structure according to an embodiment of the present invention;

[0048] Figure 11 This is a schematic diagram of the structure of a locking component according to an embodiment of the present invention;

[0049] Figure 12 This is a schematic diagram of the locking member facing the channel according to an embodiment of the present invention;

[0050] Figure 13 This is a schematic diagram of the valve when it is closed according to an embodiment of the present invention;

[0051] Figure 14 This is a cross-sectional view of a valve according to an embodiment of the present invention;

[0052] Figure 15 This is a schematic diagram of the valve stem and handle assembly according to an embodiment of the present invention;

[0053] Figure 16 This is a schematic diagram of the structure of a driver according to an embodiment of the present invention;

[0054] Figure 17 This is a schematic diagram of the structure of the valve core, connector, valve stem and handle when the valve is opened to the maximum flow rate according to an embodiment of the present invention;

[0055] Figure 18This is a schematic diagram of the structure of the valve core, connector, valve stem and handle when the valve is closed, according to an embodiment of the present invention.

[0056] Figure label:

[0057] 100. Valve; 10. Valve body; 11. Channel; 12. Valve stem hole; 13. Blind hole; 20. Valve stem; 21. First mounting hole; 22. Second mounting hole; 30. Valve core; 31. Valve core body; 32. First hinge shaft; 33. Second hinge shaft; 34. First protrusion; 35. Second protrusion; 36. Locking pin; 361. Connecting part; 362. Locking hook part; 37. First sidewall; 40. Actuator; 41. Fixed end; 411. Upper arm; 412. Lower arm; 413. Intermediate arm; 42. Guide end; 43. First mounting hole 44. Second mounting post; 50. Connector; 51. Opening guide post; 52. Pulling back guide post; 53. Body; 54. First connecting pin; 55. Second connecting pin; 60. Handle; 70. Valve cover; 80. Anti-theft buckle; 90. Locking device; 91. Protrusion; 911. Initial side; 912. End side; 92. Locking surface; 93. Guide part; 931. Guide surface; 94. Stop surface; 95. Side wall surface; 96. Support rod; 961. First side surface; 962. Second side surface; 97. Locking element; a. Angle. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to enable the reader to better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0059] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0060] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0061] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, 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 the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0062] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0063] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0064] In the following description, in order to clearly demonstrate the structure and working method of the present invention, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0065] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0066] An embodiment of the present invention provides a valve 100, which includes a valve body 10, a valve stem 20, a valve core 30, an actuator 40, and a connector 50. The valve body 10 has a channel 11 and a valve stem hole 12 to at least partially accommodate the valve stem 20, and the valve core 30 is hinged to the valve body 10. The actuator 40 is detachably connected to the valve stem 20 and cooperates with the connector 50, such that the rotational movement of the valve stem 20 is transmitted to the valve core 30 through the connector 50 and converted into a movement that drives the valve core 30 to rotate about the hinge axis, so that the valve core 30 opens or closes the channel 11.

[0067] Specifically, such as Figure 1 as well as Figure 2As shown, the valve 100 includes a valve body 10, a handle 60, a connector 50, a valve core 30, an actuator 40, and a valve stem 20. The valve core 30 is connected to the valve body 10 by a hinge, which consists of a hinge shaft on the valve core 30 and a hinge hole on the valve body 10. The handle 60 is fixed to the valve stem 20. When the handle 60 is rotated, the valve stem 20 rotates along the axis of the valve stem hole 12. The valve stem 20 is connected to the valve core 30 through the connector 50 and the actuator 40. The connector 50 and the actuator 40 transmit the movement of the valve stem 20 to the valve core 30, so that when the handle 60 is rotated, the handle 60 drives the valve stem 20 to rotate, which in turn drives the actuator 40 and the connector 50 to move. The movement of the connector 50 then drives the valve core 30 to move, thereby opening and closing the valve. A valve cover 70 can also be installed on the side of the valve body 10 away from the valve core 30, and an anti-theft buckle 80 can also be installed on the valve cover 70.

[0068] Figure 3 A perspective view of the valve body 10 of a valve 100 according to an embodiment of the present invention is shown. The valve body 10 is a housing with a channel 11 inside, which allows fluid to pass through. The left and right sides in the figure represent the outlet and inlet, respectively, connecting the container containing the valve 100 to the outside. Figure 2 The arrow W shown indicates the direction from the inlet to the outlet. A valve core 30 is located at the inlet, and the outlet is connected to the valve cover 70. A valve stem hole 12 is formed at the upper end of the valve body 10 along a vertical axis perpendicular to the horizontal axis.

[0069] The valve stem 20 is partially housed in the valve stem hole 12. The upper part of the valve stem 20 has two protrusions, and the two protrusions are provided with oppositely arranged pin holes. The handle 60 is engaged between the two protrusions, and two pins are provided on both sides of the handle 60, with the two pins correspondingly inserted into the two pin holes.

[0070] Figure 4 A schematic diagram of the actuator 40 of the valve 100 is shown. The actuator 40 includes a fixed end 41 connected to the valve stem 20 and a guide end 42 that cooperates with the connector 50. The outer surfaces on both sides of the guide end 42 are respectively provided with an extension profile and a retraction profile. The extension profile and the retraction profile cooperate with the opening guide post 51 and the retraction guide post 52 of the connector 50 to realize the transmission of motion, which will be further described below.

[0071] Figure 4On the left side of the guide end 42 of the actuator 40, a bent push-out portion and a limiting portion are sequentially provided along the direction away from the free end. During the opening of the valve 100, the push-out portion cooperates with the opening guide post 51 to push the connecting member 50 to move, thereby causing the valve core 30 to open the channel 11. When the valve 100 is fully opened, the opening guide post 51 of the connecting member 50 disengages from the push-out portion and enters the limiting portion. Preferably, the limiting portion is a groove. During the closing of the valve 100, a pull-back profile cooperates with the opening guide post 51 and the pull-back guide post 52 of the connecting member 50. The pull-back profile can be a curved surface or a plane.

[0072] The fixed end 41 of the actuator 40 is approximately E-shaped. The upper arm 411 and lower arm 412 of the E-shape have a certain degree of elasticity, so that when the middle arm 413 of the actuator 40 is inserted into the first mounting hole 21, the actuator 40 will not fall out of the first mounting hole 21 unless manually disassembled. After the upper arm 411 and lower arm 412 of the actuator 40 are assembled to the valve stem 20, the actuator 40 always has a force that holds the valve stem 20 tightly, so that the actuator 40 will not fall out. When the valve stem 20 rotates, the actuator 40 will rotate synchronously with the valve stem 20. Disassembly can be performed as long as the manual force is greater than the elastic force of the upper arm 411 and lower arm 412.

[0073] Figure 5 A schematic diagram of the structure of the connector 50 of a valve 100 according to an embodiment of the present invention is shown, as follows: Figure 5 As shown, the connector 50 has a generally U-shaped body 53. The two ends of the body 53 are provided with a first connecting pin 54 and a second connecting pin 55. An opening guide post 51 and a pull-back guide post 52 are also provided on one of the two arms of the connector 50. The opening guide post 51 and the pull-back guide post 52 are spaced apart from each other and extend downwards from the U-shaped plane, thus forming a generally U-shaped structure together with the U-shaped body 53. Preferably, the connector 50 is integrally formed by bending an elastic material. The opening guide post 51 and the pull-back guide post 52 are located at appropriate positions on the U-shaped body 53, such that the opening guide post 51 and the pull-back guide post 52 respectively cooperate with the push-out profile and pull-back profile of the actuator 40, thereby realizing the opening and closing of the valve 100. Specifically, as... Figure 6 As shown, after assembly, the guide end 42 of the actuator 40 extends into the U-shaped structure. During the opening of the valve 100, the valve stem 20 drives the actuator 40 to rotate, then the guide post 51 engages with the extension contour, driving the connecting piece 50 to move. The connecting piece 50 then drives the valve core 30 to rotate, thereby opening the valve 100. During the movement of the valve 100 through the pipe wall, the valve stem 20 drives the connecting piece 50 to rotate, pulling back the guide post 52 and engaging with the pull-back contour, driving the connecting piece 50 to move. The connecting piece 50 then drives the valve core 30 to rotate, and the valve core 30 then closes the channel 11, thus closing the valve 100.

[0074] like Figure 7 As shown, the valve core 30 has a disc-shaped valve core body 31. A first hinge shaft 32 and a second hinge shaft 33 are integrally formed on the outer periphery of the valve core body 31. A first protrusion 34 and a second protrusion 35 protrude from the side of the valve core body 31 near one end of the first hinge shaft 32 and the second hinge shaft 33, respectively. The first protrusion 34 and the second protrusion 35 are respectively provided with hinge holes (not shown in the figure) for accommodating the first connecting pin 54 and the second connecting pin 55 of the connector 50. During assembly, the valve stem 20 is partially accommodated in the valve stem hole 12 of the valve body 10, and the actuator 40 is inserted into the first mounting hole 21 on the valve stem 20. The guide end 42 of the actuator 40 extends into the U-shaped structure on the connector 50, thereby cooperating with the opening guide post 51 and the pull-back guide post 52. The hinge shaft on the valve core 30 is installed into the hinge hole of the valve body 10. Since the connector 50 has a certain elasticity, after assembly, the connector 50 will not fall off the valve core 30 unless it is disassembled manually.

[0075] like Figure 8 As shown, the valve stem 20 is partially housed in the valve stem hole 12 and rotatably held on the valve body 10. The first connecting pin 54 and the second connecting pin 55 of the valve core 30 are respectively inserted into the hinge hole on the valve body 10, so that the valve core 30 can rotate around the central axis of the hinge hole. The valve stem 20 is connected to the valve core 30 through the driver 40 and the connector 50, so that when the valve stem 20 is rotated, the valve stem 20 drives the connector 50 to move, which in turn drives the valve core 30 to move, thereby driving the valve core 30 to open or close the channel 11, that is, to open or close the valve 100.

[0076] It should be noted that in the above embodiments, the components can have various modifications. For example, the handle 60 and the valve body 10 can be a single piece, and the valve core 30 can be hinged to the valve body 10 by providing a hinge hole on the valve core 30 and a connecting pin on the valve body 10. Furthermore, the actuator 40 and the connector 50 can also have other structures, as long as the connector 50 is provided with a connecting pin for rotatably connecting to the hinge hole of the valve core 30, and the actuator 40 and the connector 50 are respectively provided with mutually cooperating guide structures, such as guide contours and guide posts, and can move synchronously with the valve stem 20. The guide contour can be provided on the actuator 40, in which case the guide post is provided on the connector 50, or the guide contour can also be provided on the connector 50, in which case the guide post is correspondingly provided on the actuator 40. The actuator 40 can be a single piece with the valve stem 20.

[0077] In this invention, the valve 100 must at least include a valve body 10, a valve stem 20, a valve core 30, an actuator 40, and a connector 50. The valve body 10 has an axial channel 11 for fluid passage, such as... Figure 1 as well as Figure 3As shown, the left and right sides of the valve body 10 form an outlet and an inlet communicating with the container and the outside, respectively. The inlet is connected to the valve core 30. The upper part of the valve body 10 is provided with a valve stem hole 12 along a vertical axis perpendicular to the horizontal axis. The valve stem 20 is partially accommodated in the valve stem hole 12 so that the valve stem 20 can be rotated. The valve body 10 is hinged to the valve core 30. The valve body 10 has a hinge shaft. The upper side of the valve core 30 has a hinge hole opposite to the hinge shaft on the valve body 10. The actuator 40 is detachably connected to the valve stem 20 through its own structure and cooperates with the connecting piece 50 so that the rotational movement of the valve stem 20 can be transmitted to the valve core 30 through the actuator 40 via the connecting piece 50 and converted into the movement that drives the valve core 30 to rotate around the hinge axis. Through this structure, the valve 100 can be opened and closed.

[0078] Specifically, the valve stem 20 is connected to the valve core 30 via the connector 50 and the actuator 40. The connector 50 and the actuator 40 transmit the movement of the valve stem 20 to the valve core 30. When the valve stem 20 rotates, it drives the actuator 40 and the connector 50 to move, and the connector 50 in turn drives the valve core 30 to move, thereby realizing the opening and closing of the valve 100. The actuator 40 includes a fixed end 41 connected to the valve stem 20 and a guide end 42 that cooperates with the connector 50. The outer surfaces on both sides of the guide end 42 are provided with an extension profile and a retraction profile. The extension profile and the retraction profile cooperate with the connector 50 to realize the transmission of movement. The main body 53 of the connector 50 is approximately U-shaped, with a first connecting pin 54 and a second connecting pin 55 at the ends of its two arms. One of the two arms of the connector 50 has an opening guide post 51 and a pull-back guide post 52. The opening guide post 51 and the pull-back guide post 52 are spaced apart and perpendicular to the plane of the main body 53, thus forming a "U" shape together with the main body 53 of the connector 50. The opening guide post 51 and the pull-back guide post 52 respectively cooperate with the push-out and pull-back contours of the actuator 40 to open and close the valve 100. In the assembled state of the valve 100, the guide end 42 of the actuator 40 extends into the "U" shape. During the opening process, the valve stem 20 drives the actuator 40 to rotate. The opening guide post 51 cooperates with the push-out contour, driving the connector 50 to move. This motion is transmitted, causing the connector 50 to drive the valve core 30 to move, thereby opening the valve 100. Correspondingly, during the closing process, the valve stem 20 drives the actuator 40 to rotate, pulls back the guide post 52 and the pull-back contour to cooperate, drives the movement of the connecting piece 50, and then transmits the movement so that the connecting piece 50 drives the valve core 30 to move, thereby closing the valve 100.

[0079] In the existing technology, the actuator 40 is connected to the valve core 30 using the connector 50, so that the actuator 40 drives the valve core 30 to open and close. The connector 50 is connected to the valve core 30 by a pin, but its locking force on the valve core 30 is insufficient. Furthermore, when the valve core 30 is open, the flow rate through the valve body 10 is large. After the valve core 30 is opened and closed repeatedly, the connector 50 is prone to deformation, which leads to a decrease in the locking force on the valve core 30 and the sealing performance of the valve.

[0080] Therefore, one embodiment of the present invention provides a valve 100 that further includes a locking device 90 extending into the valve body 10 and fixedly connected to the valve stem 20, in conjunction with... Figure 10 The valve core 30 includes a valve core body 31 and a locking pin 36 protruding from the side of the valve core body 31 facing the valve body 10. When the valve core 30 closes the channel 11, the locking device 90 is connected to the locking pin 36. The connection between the connecting member 50 and the valve core body 31 and the connection between the locking device 90 and the locking pin 36 are located on both sides of the center of the valve core 30. The locking device 90 provides a pulling force to the locking pin 36 from the inlet to the outlet. The valve core 30 closing the channel 11 as described above means that the valve 100 is closed.

[0081] By adding a locking device 90, when the valve 100 is closed, not only does the connecting part 50 exert a force on the valve core 30 toward the outlet direction of the valve body 10, but the locking device 90 also exerts a force on the valve core 30 toward the outlet direction of the valve body 10. Even if the connecting part 50 deforms after the valve 100 is opened and closed multiple times, the locking device 90 still exerts a force on the valve core 30 toward the outlet direction of the valve body 10, so that the valve core 30 is tightly connected to the valve body 10 and the channel 11 is sealed, without affecting the locking force on the valve core 30 or the sealing performance of the valve.

[0082] like Figure 11 As shown, the locking device 90 has a protruding part 91. When the valve core 30 closes the channel 11, the protruding part 91 engages with the locking pin 36. That is, when the valve 100 is closed, the protruding part 91 on the locking device 90 engages with the protruding locking pin 36 on the valve core body 31, causing the valve core body 31 to be pulled tightly against the valve body 10, thus closing the channel 11 of the valve body 10. Those skilled in the art can configure it according to actual needs.

[0083] Furthermore, combined Figure 9As shown, the protrusion 91 protrudes towards the valve stem 20. The locking pin 36 has a connecting portion 361 connected to the valve core body 31, and a locking hook portion 362 connected to the side of the connecting portion 361 away from the valve core body 31. The locking hook portion 362 is bent and connected to the connecting portion 361, and extends towards the side of the locking device 90 with the protrusion 91, that is, the locking hook portion 362 extends downward. It should be understood that although the protrusion 91 protrudes towards the valve stem 20 in this embodiment, in other embodiments, the protrusion 91 can also be provided at the bottom of the locking device 90. In this case, the locking portion of the locking pin 36 bends upward, which does not depart from the scope of the present invention. Those skilled in the art can make the setting according to actual needs.

[0084] Preferably, the locking hook portion 362 has a first sidewall 37 facing the valve core body 31, and the protrusion 91 has a locking surface 92. And when the valve core 30 closes the channel 11, i.e. Figure 13 In the indicated state, the locking surface 92 is away from the valve core body 31, the first sidewall 37 abuts against the locking surface 92, and the locking surface 92 provides a pulling force to the first sidewall 37 from the inlet to the outlet direction. After the valve 100 is closed, the first sidewall 37 abuts against the locking surface 92, that is, the locking hook portion 362 and the protrusion 91 are tightly locked together, so the valve core 30 can fit tightly against the valve body 10, so the valve core 30 can completely seal the passage 11 of the valve body 10, thus ensuring the sealing performance of the valve 100. Those skilled in the art can make settings according to actual needs.

[0085] Furthermore, the protrusion 91 has an initial side 911 and an end side 912. When the valve core 30 closes the channel 11, that is, when the valve 100 is closed, the first sidewall 37 approaches the end side 912. The initial side 911 is connected to a guide 93, and the guide 93 protrudes outside the side edge of the locking device 90. During the closing of the valve 100, the locking hook 362 moves along the direction of the guide 93, the initial side 911 of the protrusion 91 to the end side 912 of the protrusion 91. When the locking hook 362 moves to the point where the valve core 30 closes the channel 11, the locking hook 362 moves to the end side 912 of the protrusion 91, that is, the locking hook 362 approaches the end side 912 towards the first sidewall 37 of the valve core body 31. A guide portion 93 is provided on the initial side 911 of the protrusion 91, and the guide portion 93 protrudes outside the side edge of the locking device 90, so that when the valve 100 is closed, the guide portion 93 can pre-hook the locking hook portion 362 to a position close to the locking device 90, and guide the movement trajectory of the locking hook portion 362. Those skilled in the art can make the setting according to actual needs.

[0086] In addition, such as Figure 11As shown, the locking surface 92 is an arcuate surface that convexes outward in a direction away from the axis of the locking device 90. The protrusion 91 has an initial side 911 and an end side 912. The distance between the locking surface 92 and the axis of the locking device 90 gradually decreases from the initial side 911 to the end side 912. During the closing process of the valve 100, the movement trajectory of the hook portion 362 is a process of gradually approaching the axis of the locking device 90 until the movement stops. Therefore, by gradually decreasing the distance between the locking surface 92 and the axis of the locking device 90 from the initial side 911 to the end side 912, the locking surface 92 can always be in contact with the first sidewall 37 during the movement of the hook portion 362, preventing it from deviating from the movement trajectory of closing the valve 100. Those skilled in the art can configure this according to actual needs.

[0087] Preferably, such as Figure 11 As shown, the guide portion 93 has a guide surface 931 connected to the locking surface 92. The guide surface 931 is also an arc surface that convexes outward in a direction away from the axis of the locking device 90, and the locking surface 92 and the guide surface 931 are on the same arc surface. The distance between the guide surface 931 and the axis of the locking device 90 gradually decreases from the initial side 911 to the end side 912. During the process of the valve core 30 closing the channel 11, the first sidewall 37 abuts against the guide surface 931 and the locking surface 92 in sequence. During the closing process of valve 100, the movement trajectory of the locking hook 362 is a process of gradually approaching the axis of the locking device 90 until the movement stops. Therefore, the distance between the locking surface 92 and the guide surface 931 and the axis of the locking device 90 is gradually reduced from the initial side 911 to the end side 912, so that the locking surface 92 and the guide surface 931 can always be in contact with the first side wall 37 during the movement of the locking hook 362, so that it does not deviate from the movement trajectory of closing valve 100. That is to say, the arc of the arc surface where the locking surface 92 and the guide surface 931 are located is the same as the movement trajectory of the locking hook 362, and the locking hook 362 moves closely against the locking surface 92 and the guide surface 931. Those skilled in the art can set it according to actual needs. Understandably, in some embodiments, the curvature of the arc surfaces where the locking surface 92 and the guide surface 931 are located may be partially different from the movement trajectory of the locking part 362. After the valve 100 is closed, there is a holding force between the locking surface 92 and the locking part 362, or during the process of closing the valve, after the valve core has traveled a certain distance, there is a holding force between the locking surface 92 and the locking part 362.

[0088] In addition, such as Figure 12 As shown, the protrusion 91 is connected to the locking device 90, and the protrusion 91 also has a stop surface 94. The locking device 90 has a side wall surface 95 that is isolated from the locking surface 92. The stop surface 94 connects the locking surface 92 and the side wall surface 95. Wherein, combined with Figure 13As shown, when the valve core 30 closes the channel 11, the locking pin 36 at least partially abuts against the stop surface 94. During the closing process of the valve 100, the locking hook portion 362 moves from the guide surface 931, the locking surface 92 to the stop surface 94. When the locking hook portion 362 moves to abut against the stop surface 94, the valve core 30 stops rotating, and the valve 100 is closed at the same time. The stop surface 94 is set to restrict the movement of the locking hook portion 362 after the valve 100 is closed, and those skilled in the art can set it according to actual needs.

[0089] Furthermore, when the protrusion 91 is located between the valve core body 31 and the locking pin 36, the protrusion 91 provides a pulling force to the locking pin 36 from the inlet to the outlet direction. That is, during the closing process of the valve 100, the protrusion 91 always engages the locking pin 36. Specifically, the protrusion 91 and the locking device 90 form a groove-like structure, and the locking pin 36 moves within this groove. The protrusion 91 can be located on the top surface of the locking device 90, in which case the locking pin 36 engages with the protrusion 91 downwards, or the protrusion 91 can be located on the bottom surface of the locking device 90, in which case the locking pin 36 engages with the protrusion 91 upwards. That is, when the valve 100 is closed, the protrusion 91 on the locking device 90 engages the locking pin 36 protruding from the valve core body 31, so that the valve core body 31 is engaged to fit tightly against the valve body 10, sealing the passage 11 of the valve body 10. In other embodiments, during the closing of valve 100, the protrusion 91 does not always engage the locking pin 36. Those skilled in the art can adjust this according to actual needs.

[0090] In addition, the protrusion 91 is interference-fitted with the locking pin 36. Therefore, the protrusion 91 can tightly pull the locking pin 36, that is, the valve core 30 and the valve body 10 are tightly fitted, ensuring the sealing performance of the valve 100.

[0091] Specifically, such as Figure 9 As shown, the locking device 90 includes a support rod 96 and a locking element 97, with the valve stem 20 and the locking element 97 fixedly connected to both ends of the support rod 96, respectively. (Combined with...) Figure 11 as well as Figure 12 As shown, the protrusion 91 protrudes from the locking member 97 and surrounds the outer periphery of the support rod 96 in the axial direction. Figure 10As shown, the locking pin 36 has a connecting portion 361 connected to the valve core body 31, and a locking hook portion 362 connected to the side of the connecting portion 361 away from the valve core body 31. The locking hook portion 362 is bent and connected to the connecting portion 361, and extends toward the side of the locking member 97 toward the support rod 96. This arrangement allows the protrusion 91 to be located at the top of the locking member 97, while the locking hook portion 362 bends downward. Therefore, after the valve 100 is closed, the top of the valve core 30 has a force toward the valve body 10 through the connecting member 50, and the lower part of the valve core 30 also has a force toward the valve body 10 to hold it, thus ensuring the sealing of the valve 100. The structure of the locking device 90 is not limited to the structure shown in the figure. Alternatively, the locking device 90 can be a rod with a hook on its outer periphery, which cooperates with the locking hook portion 362 to hook the locking hook portion 362. It should be understood that the locking device 90 can also be a single piece without being separated into the support rod 96 and the locking member 97, or the locking device 90 can be a portion of the valve stem 20 that protrudes downwards, without departing from the scope of the present invention.

[0092] Furthermore, such as Figure 2 as well as Figure 14 As shown, a blind hole 13 is provided on the side of the valve body 10 facing the channel 11, and the blind hole 13 is used to accommodate part of the locking member 97. The protrusion 91 is provided outside the blind hole 13. Providing a blind hole 13 on the side of the valve body 10 facing the channel 11 can both maintain the sealing performance of the valve body 10 and provide an area to accommodate part of the locking member 97. Since the locking hook 362 is operably located inside the channel 11, placing the protrusion 91 outside the blind hole 13 ensures that the protrusion 91 can engage the locking hook 362. This structure is reasonable, and those skilled in the art can configure it according to actual needs. It should be understood that the blind hole 13 can also be in the form of a through hole, but the part of the through hole that accommodates the locking member 97 can be provided with a sealing ring. This implementation does not depart from the scope of the present invention, and those skilled in the art can configure it according to actual needs.

[0093] In addition, such as Figure 15 As shown, the valve stem 20 is provided with a first mounting hole 21 and a second mounting hole 22. The extending directions of the first mounting hole 21 and the second mounting hole 22 are perpendicular, and the first mounting hole 21 at least partially communicates with the second mounting hole 22. Figure 16As shown, the actuator 40 has a first mounting post 43 and a second mounting post 44. The first mounting post 43 and the second mounting post 44 are operably inserted into the first mounting hole 21. The support rod 96, on the side facing the valve stem 20, passes through the second mounting hole 22 and is partially located in the first mounting hole 21. The portion of the support rod 96 located in the first mounting hole 21 is clamped between the first mounting post 43 and the second mounting post 44. This arrangement not only saves space but also ensures that the support rod 96 is stably clamped between the first mounting post 43 and the second mounting post 44, guaranteeing relatively stable movement of the actuator 40 and the support rod 96. When the actuator 40 starts to move, the support rod 96 also moves accordingly, and vice versa. Those skilled in the art can configure this according to actual needs.

[0094] In addition, such as Figure 17 as well as Figure 18 As shown, the angle 'a' of the support rod 96 rotating due to the valve stem 20 ranges from 160° to 170°. That is, from the point when the valve 100 has the maximum flow rate until it is closed, the angle 'a' of the support rod 96 rotating due to the valve stem 20 ranges from 160° to 170°. In other words, when the valve 100 is opened from its closed state to its maximum flow rate, i.e., when the valve core 30 rotates at its maximum angle 'a', the angle 'a' of the support rod 96 rotating due to the valve stem 20 ranges from 160° to 170°.

[0095] Furthermore, when the opening between the valve core 30 and the valve body 10 is at its maximum, the area of ​​the support rod 96 facing the outer contour of the valve core 30 is at its minimum. That is, when the flow rate of the valve 100 is at its maximum, i.e., when the valve core 30 is rotated to its maximum angle α, the area of ​​the support rod 96 facing the outer contour of the valve core 30 is at its minimum. This arrangement minimizes the obstruction of the support rod 96 to the fluid flow, ensuring both the sealing performance of the valve 100 and the maximum possible flow rate.

[0096] Preferably, such as Figure 9 As shown, the support rod 96 has a cuboid structure and a pair of opposing first side surfaces 961 and a pair of opposing second side surfaces 962. The first side surfaces 961 and second side surfaces 962 are connected at intervals, and the area of ​​the first side surface 961 is larger than the area of ​​the second side surface 962. Specifically, when the opening between the valve core 30 and the valve body 10 is at its maximum, the second side surface 962 faces the valve core 30. That is, when the flow rate of the valve 100 is at its maximum, i.e., when the valve core 30 is rotated to its maximum angle α, the second side surface 962 faces the valve core 30. This arrangement is simple and minimizes the obstruction of fluid flow by the support rod 96, ensuring both the sealing performance of the valve 100 and maximizing the flow rate.

[0097] Furthermore, the line connecting the connector 50 and the valve core body 31 to the locking part passes through the center of the valve core 30. The locking pin 36 has a connecting part 361 connected to the valve core body 31, and a locking hook part 362 connected to the side of the connecting part 361 away from the valve core body 31. The locking hook part 362 is bent and connected to the connecting part 361 and extends toward the connection between the connector 50 and the valve core body 31. That is, the connection between the connector 50 and the valve core body 31 is located at the top of the valve core body 31, and the locking part is located at the bottom of the valve core body 31. Therefore, when the valve 100 is closed, both ends of the valve core body 31 exert force to seal the valve core body 31 with the valve body 10, maximizing the sealing performance of the valve 100. Understandably, the optimal solution is for the connection between the connector 50 and the valve core body 31 and the locking part to pass through the center of the valve core 30. Alternatively, the connection between the connector 50 and the valve core body 31 and the locking part may not pass through the center of the valve core 30.

[0098] Furthermore, such as Figure 7 In this design, the distance between the center O of the valve core body 31 and the center P of the connection between the locking pin 36 and the valve core body 31 is m, and the distance between the center O of the valve core body 31 and the boundary Q of the valve core body 31 facing the inlet is n. The line connecting the center O of the valve core body 31 and the boundary of the valve core body 31 facing the inlet passes through the center P of the connection between the locking pin 36 and the valve core body 31, and the range of m / n is 1 / 3 to 2 / 3. That is, the center P of the connection between the locking pin 36 and the valve core body 31 can be at the middle, one-third, or two-thirds of the distance between the boundary Q and the center O of the valve core body 31; or at one-quarter or one-fifth of the distance. The connection P of the locking pin 36 and the valve core body 31 is closer to the boundary Q of the valve core body 31 and farther from the center O. The center of the connection between the locking pin 36 and the valve core body 31 can also be slightly off-center, all within the scope of protection of this application.

[0099] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0100] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0101] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A valve, characterized in that, The valve includes a valve body, a valve stem, a valve core, an actuator, and a connector; the valve body has a channel and a valve stem hole to at least partially accommodate the valve stem; the valve body has an outlet and an inlet communicating with the outside; at the inlet, the valve core is hinged to the valve body; the valve core includes a valve core body and a locking pin protruding from the valve core body toward the outlet side; The actuator is detachably connected to the valve stem and cooperates with the connector, such that the rotational movement of the valve stem is transmitted to the valve core through the connector and converted into a movement that drives the valve core to rotate about the hinge axis, so that the valve core opens or closes the channel; the valve also includes a locking device that extends into the valve body and is fixedly connected to the valve stem; when the valve core closes the channel, the locking device is connected to the locking pin, and the connection between the connector and the valve core body and the locking pin are located on both sides of the center of the valve core; When the valve core closes the channel, the locking device is connected to the valve core and provides a pulling force to the locking pin from the inlet to the outlet.

2. The valve according to claim 1, characterized in that, The locking device has a protruding part; When the valve core closes the channel, the protrusion provides a pulling force to the locking pin from the inlet to the outlet.

3. The valve according to claim 2, characterized in that, The protrusion protrudes toward the valve stem, and the locking pin has a connecting portion connected to the valve core body and a locking hook portion connected to the side of the connecting portion away from the valve core body; and the locking hook portion is bent and connected to the connecting portion and extends toward the side of the locking device with the protrusion.

4. The valve according to claim 3, characterized in that, The locking hook portion has a first sidewall facing the valve core body; the protrusion has a locking surface, and when the valve core closes the channel, the locking surface is away from the valve core body, the first sidewall abuts against the locking surface, and the locking surface provides a pulling force to the first sidewall from the inlet to the outlet direction.

5. The valve according to claim 4, characterized in that, The protrusion has an initial side and an end side, and when the valve core closes the channel, the first sidewall is close to the end side; The initial side is connected to a guide portion, and the guide portion protrudes outside the side edge of the locking device.

6. The valve according to claim 5, characterized in that, The guide portion has a guide surface connected to the locking surface. Both the locking surface and the guide surface are arc surfaces that convex outward in a direction away from the axis of the locking device, and the locking surface and the guide surface are on the same arc surface. The distances between the locking surface and the guide surface and the axis of the locking device gradually decrease from the initial side to the end side. When the valve core closes the channel, the first sidewall abuts against the guide surface and the locking surface in sequence.

7. The valve according to claim 4, characterized in that, The locking surface is an arc-shaped surface that convexes outward in a direction away from the axis of the locking device; wherein the protrusion has an initial side and an end side, and the distance between the locking surface and the axis of the locking device gradually decreases from the initial side to the end side.

8. The valve according to claim 4, characterized in that, The protrusion is connected to the locking device, and the protrusion also has a stop surface; The locking device has a side wall surface that is isolated from the locking surface, and the stop surface connects the locking surface and the side wall surface; When the valve core closes the channel, the locking pin at least partially abuts against the stop surface.

9. The valve according to claim 2, characterized in that, When the protrusion is located between the valve core body and the locking pin, the protrusion provides a pulling force to the locking pin from the inlet to the outlet direction.

10. The valve according to claim 2, characterized in that, The protrusion is interference-fitted with the locking pin.

11. The valve according to claim 2, characterized in that, The locking device includes a support rod and a locking element, wherein the valve stem and the locking element are respectively fixedly connected to both ends of the support rod; The protrusion protrudes from the locking member and surrounds the outer periphery of the support rod in the axial direction. The locking pin has a connecting portion connected to the valve core body, and a locking hook portion connected to the side of the connecting portion away from the valve core body; and the locking hook portion is bent and connected to the connecting portion, and extends toward the side of the locking member toward the support rod.

12. The valve according to claim 11, characterized in that, The valve body has a blind hole on the side facing the channel, and the blind hole is used to accommodate part of the locking member, and the protrusion is located outside the blind hole.

13. The valve according to claim 11, characterized in that, The valve stem is provided with a first mounting hole and a second mounting hole. The extension direction of the first mounting hole and the second mounting hole are perpendicular, and the first mounting hole is at least partially connected to the second mounting hole. The driver is provided with a first mounting post and a second mounting post, which are operably inserted into the first mounting hole; The support rod passes through the second mounting hole on the side facing the valve stem and is partially located in the first mounting hole, and the portion of the support rod located in the first mounting hole is clamped between the first mounting post and the second mounting post.

14. The valve according to claim 11, characterized in that, The angle range of the support rod being rotated by the valve rod is between 160° and 170°.

15. The valve according to claim 11, characterized in that, When the opening between the valve core and the valve body is at its maximum, the area of ​​the support rod facing the outer contour of the valve core is at its minimum.

16. The valve according to claim 15, characterized in that, The support rod has a cuboid structure and has a pair of oppositely arranged first side surfaces and a pair of oppositely arranged second side surfaces. The first side surfaces and the second side surfaces are connected at intervals, and the area of ​​the first side surface is larger than the area of ​​the second side surface. When the opening between the valve core and the valve body is at its maximum, the second side surface faces the valve core.

17. The valve according to claim 1, characterized in that, The line connecting the connection point of the connector and the valve core body to the locking pin passes through the center of the valve core; The locking pin has a connecting portion connected to the valve core body, and a locking hook portion connected to the side of the connecting portion away from the valve core body; and the locking hook portion is bent and connected to the connecting portion, and extends toward the connection between the connector and the valve core body.

18. The valve according to claim 1, characterized in that, The distance between the center of the valve core body and the center of the connection between the locking pin and the valve core body is m, the distance between the center of the valve core body and the boundary of the valve core body facing the inlet is n, and the line connecting the center of the valve core body and the boundary of the valve core body facing the inlet passes through the center of the connection between the locking pin and the valve core body; the range of m / n is 1 / 3 to 2 / 3.

Images