A valve

Abstract

The utility model relates to a valve, including valve body, flange, valve core, inner valve seat and valve rod, the passage that has the valve body is through the valve body, the valve core is provided with the first guide surface, the valve rod is provided with the second guide surface, the valve core with the inner wall of the passage is provided with one of the matched guide slot and the guide post, the valve rod with the valve core is driven the valve core along the radial rotation of the passage to the switching position through the cooperation of the second guide surface with the first guide surface, when the valve core is located in the switching position, the valve rod can drive the valve core moves to the direction of the inner valve seat makes the guide post moves to the guide slot, to let the valve core with the one end of the valve rod is connected to the inner valve seat extrusion the inner valve seat to close the passage.

Description

Technical Field

[0001] This utility model relates to the field of storage container technology, specifically to a valve. Background Technology

[0002] Medium bulk containers (IBCs), as standardized containers, are widely used in the storage and transportation of liquid materials in industries such as chemicals, food, pharmaceuticals, and coatings. Their discharge valves, as key components controlling material outflow, directly affect the efficiency of the entire packaging system through their reliability, operational safety, and ease of maintenance. Existing valves for IBCs, such as butterfly valves and ball valves, open by rotating a central shaft that drives the valve core to rotate on both sides. The valve core is located inside the valve body, and the valve closes through a seal between the valve core and the valve seat. During long-distance transportation and stacking, IBCs are often subjected to severe vibration and impact. Friction constantly exists between the rotating valve core and the valve seat sealing surface. Especially when handling materials containing particles, powders, or easily crystallizing materials (such as dyes, resins, and food slurries), the sealing surface is easily scratched or worn, or jammed by solid particles, leading to incomplete closure and material leakage. Leakage not only causes material and economic losses but can also lead to environmental pollution, equipment corrosion, and even personnel safety accidents.

[0003] Therefore, this utility model proposes a valve with a novel structure to meet the stringent requirements of modern industrial logistics for reliability, safety, and efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a valve that ensures good sealing performance.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A valve, comprising: Valve body, wherein the valve body has a channel penetrating the valve body; A flange, which is sealed to one end of the valve body; A valve core, which is movably disposed within the channel; An inner valve seat is disposed within the channel and is sealed to the valve body; A valve stem that passes through the valve body and is driven to connect with the valve core. The valve core has a first guide surface at one end facing the valve stem, and the valve stem has a second guide surface that matches the first guide surface. The valve core and the inner wall of the channel are respectively provided with one of a matching guide groove and a guide post, and the guide groove extends along the axial direction of the channel; The inner wall of the channel or the end of the valve core facing the valve stem is also provided with a guide edge, which is connected to the guide groove; The valve stem and the valve core are driven to perform a first movement and a second movement by the cooperation of the second guide surface and the first guide surface. The first movement is the radial rotation of the valve core along the channel, and the second movement is the axial deflection of the valve core along the channel. During the first movement, the guide post moves along the guide edge, and when the valve core rotates to the switching position, the guide post faces the opening of the guide groove. In the second movement, the valve stem can drive the valve core and the end connected to it to move toward the inner valve seat, causing the guide post to move into the guide groove, and the valve core to press the inner valve seat toward the inner valve seat to close the channel.

[0006] In one embodiment, the inner valve seat is located on the side of the valve core that is relatively far from the flange.

[0007] In one embodiment, the first guide surface includes a first guide module surface and a second guide module surface that are disposed opposite to each other and spaced apart; the second guide surface of the valve stem includes a first drive module surface and a second drive module surface that are disposed opposite to each other and spaced apart; the valve core is driven to move by cooperating with the first drive module surface and the first guide module surface to open the channel; the valve core is driven to move by cooperating with the second drive module surface and the second guide module surface to close the channel.

[0008] In one embodiment, the valve core is provided with a guide block protruding towards the valve stem at one end. The guide block includes a first guide module and a second guide module that are arranged opposite to and spaced apart from each other. The first guide module surface and the second guide module surface are respectively disposed on the first guide module and the second guide module.

[0009] In one embodiment, the valve core has a guide groove recessed away from the valve stem at one end facing the valve stem. The guide groove has a first wall and a second wall that are opposite to each other and spaced apart. The first guide module surface and the second guide module surface are respectively disposed on the first wall and the second wall.

[0010] In one embodiment, the first guide module surface includes a first starting portion, a first ending portion, and a first limiting portion that are sequentially connected and extend in different directions; the second guide module surface includes a second starting portion, a second ending portion, and a second limiting portion that are sequentially connected and extend in different directions. The first drive module surface includes a first drive surface and a first driving surface that are connected in sequence and face different directions; the second drive module surface includes a second drive surface and a second driving surface that are connected in sequence and face different directions. The first driving surface is operably slidable along the first starting portion to engage with the first limiting portion, and the first driving surface engages with the first ending portion to disengage the guide post from the guide groove; the first driving surface engaging with the first limiting portion operably drives the valve core to rotate radially along the channel so that the guide post rotates in a direction away from the guide groove. The second driving surface is operably slidable along the second starting portion to engage with the second limiting portion, and the second driving surface engages with the second ending portion to allow the guide post to move from the opening of the guide groove into the guide groove; the second driving surface engaging with the second limiting portion operably drives the valve core to rotate radially along the channel so that the guide post rotates toward the guide groove.

[0011] In one embodiment, the guide groove is disposed on the inner wall of the channel, and the guide post is disposed at the end of the valve core facing the valve stem.

[0012] In one embodiment, the guide post is disposed on the inner wall of the channel, and the guide groove is disposed at the end of the valve core facing the valve stem.

[0013] In one embodiment, the inner wall of the channel or the end of the valve core facing the valve stem is provided with a limiting edge located next to the guide groove. When the guide post abuts against the limiting edge, the guide post is directly opposite the opening of the guide groove.

[0014] In one embodiment, the inner wall of the channel or the end of the valve core facing the valve stem is provided with a guide edge and a limiting edge, one end of the guide edge is directly opposite to the limiting edge and is spaced apart, and the gap between the end of the guide edge directly opposite the limiting edge and the limiting edge constitutes the guide groove.

[0015] In one embodiment, the wall of the channel has a valve body limiting rib, and the valve core has a first valve core limiting rib and a second valve core limiting rib on the side opposite to the valve stem; when the valve core is in the switching position, the first valve core limiting rib abuts against the valve body limiting rib; when the valve core is in the position of maximum valve flow, the second valve core limiting rib abuts against the valve body limiting rib.

[0016] In one embodiment, the valve is a butterfly valve or a ball valve.

[0017] The present invention adopts the above-mentioned technical solution and has the following beneficial effects: the valve provided by the present invention has guide grooves and guide posts respectively set on the valve core and the inner wall of the channel. When the valve core rotates to the switching position, the guide post faces the groove opening of the guide groove; and at this time, the valve stem can drive the valve core and the end connected to it to move towards the inner valve seat, so that the guide post moves into the guide groove, so that the end of the valve core connected to the valve stem squeezes the inner valve seat towards the inner valve seat to close the channel, thereby allowing the valve core to better seal and contact the inner valve seat, ensuring the valve's sealing performance. Attached Figure Description

[0018] Figure 1 This is an exploded view of the valve in the first embodiment.

[0019] Figure 2 This is a cross-sectional view of the valve in the first embodiment.

[0020] Figure 3 This is a schematic diagram of the first type of valve core in the first embodiment from one perspective.

[0021] Figure 4 This is a schematic diagram of the first type of valve core in the first embodiment from another perspective.

[0022] Figure 5 This is a top view of the first type of valve core in the first embodiment.

[0023] Figure 6 This is a schematic diagram of the valve stem in the first embodiment from one perspective.

[0024] Figure 7 This is a schematic diagram of the valve stem in the first embodiment from another perspective.

[0025] Figure 8 This is a schematic diagram of the valve body in the first embodiment from one perspective.

[0026] Figure 9 This is a schematic diagram of the second type of valve core in the first embodiment from one perspective.

[0027] Figure 10 This is a top view of the second type of valve core in the first embodiment.

[0028] Figure 11 This is a schematic diagram of the valve body in the first embodiment from another perspective.

[0029] Figure 12 This is a three-dimensional sectional view of the valve in the first embodiment.

[0030] Figure 13 This is a side view of the valve core in the first embodiment when it is in a fully open state.

[0031] Figure 14 This is a cross-sectional view of the valve core in the first embodiment with the valve in a fully open state.

[0032] Figure 15 This is a partial three-dimensional sectional view of the valve core in the first embodiment with the valve in a fully open state.

[0033] Figure 16 yes Figure 15 Top view.

[0034] Figure 17 This is a side view of the valve core in the first embodiment in a half-open state.

[0035] Figure 18 This is a cross-sectional view of the valve core in the first embodiment in a half-open angle state.

[0036] Figure 19 This is a partial perspective sectional view of the valve core in the first embodiment, with the valve core in a half-open angle state.

[0037] Figure 20 yes Figure 19 Top view.

[0038] Figure 21 This is a side view of the valve core in the first embodiment with the valve in a zero-open-angle state.

[0039] Figure 22 This is a cross-sectional view of the valve core in the first embodiment with the valve in a zero-open-angle state.

[0040] Figure 23 This is a partial perspective sectional view of the valve core in the first embodiment at a zero opening angle.

[0041] Figure 24 yes Figure 23 Top view.

[0042] Figure 25 This is a side view of the valve core in the first embodiment, with the valve core biased towards the valve seat.

[0043] Figure 26 This is a cross-sectional view of the valve core in the first embodiment, with the valve core offset towards the valve seat.

[0044] Figure 27 This is a partial three-dimensional sectional view of the valve core in the first embodiment, with the valve core offset towards the valve seat.

[0045] Figure 28 yes Figure 27 Top view.

[0046] Figure 29This is a side view of the valve in the first embodiment with the valve core biased towards the inner valve seat and pressing against the inner valve seat.

[0047] Figure 30 This is a cross-sectional view of the valve core in the first embodiment, which is biased towards the inner valve seat and compresses the inner valve seat.

[0048] Figure 31 This is a partial three-dimensional sectional view of the valve core in the first embodiment, which is biased towards the inner valve seat and squeezes the inner valve seat.

[0049] Figure 32 yes Figure 31 Top view.

[0050] Figure 33 This is a side view of the valve core in the first embodiment, with the valve core offset away from the inner valve seat.

[0051] Figure 34 This is a cross-sectional view of the valve core in the first embodiment, with the valve core offset away from the inner valve seat.

[0052] Figure 35 This is a partial perspective sectional view of the valve core of the valve in the first embodiment, with the valve core offset away from the inner valve seat.

[0053] Figure 36 yes Figure 35 Top view.

[0054] Figure 37 This is a side view of the valve core in the first embodiment, which has been offset away from the inner valve seat and returned to a zero opening angle state.

[0055] Figure 38 This is a cross-sectional view of the valve core in the first embodiment, which is offset away from the inner valve seat and restored to a zero opening angle state.

[0056] Figure 39 This is a partial three-dimensional sectional view of the valve core in the first embodiment, showing it returning to a zero-open-angle state after being offset away from the inner valve seat.

[0057] Figure 40 yes Figure 39 Top view.

[0058] Figure 41 This is a side view of the valve core in the first embodiment restored to a half-open angle state.

[0059] Figure 42 This is a cross-sectional view of the valve core in the first embodiment restored to a half-open angle state.

[0060] Figure 43This is a partial perspective sectional view of the valve core in the first embodiment restored to a half-open angle state.

[0061] Figure 44 yes Figure 43 Top view.

[0062] Figure 45 This is an exploded view of the valve in the second embodiment.

[0063] Figure 46 This is a cross-sectional view of the valve in the second embodiment.

[0064] Figure 47 This is a schematic diagram of the valve body in the second embodiment from one perspective.

[0065] Figure 48 This is a schematic diagram of the valve core in the second embodiment from one perspective.

[0066] Figure 49 This is a top view of the valve core in the second embodiment.

[0067] Figure 50 This is a partial three-dimensional sectional view of the valve core in the second embodiment when it is in a fully open state.

[0068] Figure 51 yes Figure 50 Top view.

[0069] Figure 52 This is a partial three-dimensional sectional view of the valve core in the second embodiment, with the valve core in a half-open angle state.

[0070] Figure 53 yes Figure 52 Top view.

[0071] Figure 54 This is a partial perspective sectional view of the valve core in the second embodiment at a zero opening angle.

[0072] Figure 55 yes Figure 54 Top view.

[0073] Figure 56 This is a partial three-dimensional sectional view of the valve core in the second embodiment, with the valve core offset towards the valve seat.

[0074] Figure 57 yes Figure 56 Top view.

[0075] Figure 58 This is a partial three-dimensional sectional view of the valve core in the second embodiment, which is biased towards the inner valve seat and compresses the inner valve seat.

[0076] Figure 59 yes Figure 58 Top view.

[0077] Figure 60 This is a partial three-dimensional sectional view of the valve core in the second embodiment, with the valve core offset away from the inner valve seat.

[0078] Figure 61 yes Figure 60 Top view.

[0079] Figure 62 This is a partial three-dimensional sectional view of the valve core in the second embodiment, showing it returning to a zero-open-angle state after being offset away from the inner valve seat.

[0080] Figure 63 yes Figure 62 Top view.

[0081] Figure 64 This is a partial three-dimensional sectional view of the valve core in the second embodiment restored to a half-open angle state.

[0082] Figure 65 yes Figure 64 Top view.

[0083] Figure 66 This is an exploded view of the valve in the third embodiment.

[0084] Figure 67 This is a cross-sectional view of the valve in the third embodiment.

[0085] Figure 68 This is a schematic diagram of the valve core in the third embodiment from one perspective.

[0086] Figure 69 This is a schematic diagram of the valve core in the third embodiment from another perspective.

[0087] Figure 70 This is a top view of the valve core in the third embodiment.

[0088] Figure 71 This is a schematic diagram of the valve stem in the third embodiment from one perspective.

[0089] Figure 72 This is a schematic diagram of the valve body in the third embodiment from one perspective.

[0090] Figure 73 This is an exploded view of the valve in the fourth embodiment.

[0091] Figure 74 This is a cross-sectional view of the valve in the fourth embodiment.

[0092] Figure 75 This is a schematic diagram of the valve core in the fourth embodiment from one perspective.

[0093] Figure 76 This is a top view of the valve core in the fourth embodiment.

[0094] Figure 77 This is a schematic diagram of the valve body in the fourth embodiment from one perspective.

[0095] Figure 78 This is a schematic diagram of the valve stem in the fourth embodiment from one perspective. Detailed Implementation

[0096] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand 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 only for illustrating the essential spirit of the technical solution of the present invention.

[0097] 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.

[0098] 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”.

[0099] 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.

[0100] 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.

[0101] In the following description, in order to clearly demonstrate the structure and working method of this utility model, 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.

[0102] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0103] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0104] The first embodiment of this utility model provides a valve 100. For example... Figure 1 and Figure 2 As shown, valve 100 includes a valve body 11, an inner valve seat 12, a flange 13, a valve core 14, a valve stem 15, a valve cover 16, and a fixing clamp 17. The flange 13 is located at one end of the valve body 11 and is sealed to the valve body. A flange sealing ring 18 is clamped between the flange 13 and the valve body 11. The flange 13 is used for docking with a container. The valve body 11 has a channel 110 penetrating the valve body 11. The valve core 14 is movably disposed within the channel 110. The inner valve seat 12 is disposed within the channel 110 and is located on the side of the valve core 14 away from the flange 13, sealingly connected to the valve body 11. The valve stem 15 penetrates the valve body 11 and is driven to the valve core located within the channel 110, thereby driving the valve core 14 to move and press against the inner valve seat 12 to close the channel 110 or driving the valve core 14 to separate from the inner valve seat 12 to open the channel 110. The valve cover 16 is located at the other end of the valve body 11 opposite to the flange 13 and is sealingly connected to the valve body 11. An outer valve seat 19 is also provided between the valve cover 16 and the valve body 11. The valve cover 16 can operably press against the outer valve seat 19 to achieve a sealing connection between the valve cover 16 and the valve body. The valve cover 16 is used to cover the opening of the passage 110 away from the flange 13 during the non-drainage stage of the container to prevent debris from entering the passage 110 and affecting the opening, closing, and sealing of the valve 100. A retaining clip 17 is sleeved on the outer periphery of the valve body 11. The retaining clip 17 serves to fix the valve to the discharge port of the container. In some cases, the valve may not have a valve cover 16 and / or a retaining clip 17.

[0105] See Figures 1-12The valve core 14 has a protruding positioning rod 141 on the side opposite to the valve stem 15. The wall of the channel 110 has a positioning rod hole 112 for inserting the positioning rod 141, and the positioning rod 141 is rotatably inserted into the positioning rod hole 112. When the valve stem 15 drives the valve core 14 to rotate, the positioning rod 141 rotates within the positioning rod hole 112. The valve body 11 also has a mounting hole 111 for the valve stem 15 to pass through. The mounting hole 111 communicates with the channel 110 and is positioned opposite to the positioning rod hole 112. In this embodiment, the valve core 14 is the valve core of a butterfly valve.

[0106] The valve stem 15 includes a rotating portion 151 that mates with the mounting hole 111 and a handle portion 152 that is fixedly connected to the rotating portion 151. The rotating portion 151 has a generally cylindrical structure and includes a positioning post 1511, a transition post 1512, and a connecting post 1513 that are sequentially connected from the inside to the outside of the channel 110, wherein the rotating portion 151 is rotatably located within the mounting hole 111. The outer peripheral surface of the connecting post 1513 is provided with an annular groove 15133 for fixing the valve stem sealing ring 153, so that the connecting post 1513 is sealed to the valve body 11. The connecting post 1513 is provided with a mounting platform 15131, and the fixing clip 17 is provided with a blocking portion 171 that protrudes into the mounting hole 111 and mates with the mounting platform 15131. The mounting platform 15131 and the blocking portion 171 cooperate to prevent the rotating portion 151 from disengaging from the mounting hole 111. Preferably, to facilitate the engagement and fixation between the mounting platform 15131 and the blocking part 171, the front section of the mounting platform 15131 facing into the channel is also provided with a tapered mounting platform guide surface 15132. The rotating part 151 also includes a guide rib 1514, which is located on the outer peripheral surface of the transition column 1512 and protrudes along the radial direction of the transition column 1512.

[0107] The side of the valve core 14 facing the valve stem 15 is a mounting part, on which a first guide surface is provided. The guide rib 1514 of the valve stem 15 has a second guide surface, which cooperates with the first guide surface to drive the valve core 14 to rotate radially along the channel 110 to the switching position. When the valve core 14 rotates to the switching position, it drives the end of the valve core 14 connected to the valve stem 15 to move toward the valve cover 16 to press the inner valve seat 12 to close the channel 110.

[0108] Specifically, see Figure 3 and Figure 5The first guide surface is a contour surface disposed on the guide block 142. The guide block 142 includes a first guide module 1421 and a second guide module 1422 disposed opposite to each other. The first guide surface includes a first inner contour guide surface located on the first guide module 1421 and a second inner contour guide surface located on the second guide module 1422. The first guide module 1421 and the second guide module 1422 are spaced apart along the axial direction of the valve core 14. The first inner contour guide surface and the second inner contour guide surface are end faces respectively disposed on the facing sides of the first guide module 1421 and the second guide module 1422. The first inner contour guide surface includes a first starting portion 14211, a first ending portion 14212, and a first limiting portion 14213 sequentially connected and extending in different directions. The second inner contour guide surface includes a second starting portion 14221, a second ending portion 14222, and a second limiting portion 14223 sequentially connected and extending in different directions.

[0109] See also Figure 9 and Figure 10 The first guide surface can also be a contour surface within the first guide groove 143. The first guide groove 143 includes two inner walls spaced apart along the axial direction of the valve core 14. The first inner contour guide surface and the second inner contour guide surface are respectively disposed on the first wall surface 1431 and the second wall surface 1432. The first inner contour guide surface includes a first starting portion 14311, a first ending portion 14312, and a first limiting portion 14313 that are sequentially connected and extend in different directions. The second inner contour guide surface includes a second starting portion 14321, a second ending portion 14322, and a second limiting portion 14323 that are sequentially connected and extend in different directions. Since the first guide surface of the guide block 142 and the first guide groove 143 is the same, the examples of the valve core opening and closing process in the following descriptions will all use the first guide surface disposed within the first guide groove 143 as an example.

[0110] See Figure 7 The second guide surface includes a first drive module surface and a second drive module surface that are arranged opposite to each other and spaced apart. The first drive module surface has a first drive surface 15141 and a first driving surface 15142 that are connected in sequence and extend in different directions, and the second drive module surface has a second drive surface 15143 and a second driving surface 15144 that are connected in sequence and extend in different directions.

[0111] See also Figure 3 and Figure 9 The valve core 14 is also provided with a guide post 144 on its mounting part.

[0112] See Figure 11The valve body 11 has a second guide groove 113 on the bottom edge of the mounting hole 111 facing the channel 110, which matches the guide post 144, and a guide edge 114 that guides the guide post 144 into the second guide groove 113. The second guide groove 113 is recessed along the axial direction of the channel and in a direction away from the flange 13. Preferably, the second guide groove 113 has a limiting edge 115 on the side away from the guide edge 114.

[0113] See Figures 13-32 , Figures 13-32 The diagram illustrates the process of a valve switching from the open to the closed state. Figures 13-16 A schematic diagram is shown with the valve core fully open. Figures 17-20 A schematic diagram is shown with the valve core in a half-open state; Figures 21-24 A schematic diagram is shown with the valve core in the closed state. Figures 25-32 This diagram shows the valve core in the closed position with the valve core tilted at a certain angle towards the valve cover. Specifically, as shown... Figure 16-24 As shown, the valve stem 15 rotates clockwise. During the rotation of the valve stem 15, the second driving surface 15144 abuts against the second starting part 14321, causing the valve core to rotate clockwise to the open-angle closed state. At the same time, the guide post 144 moves along the guide edge 114 to the opening of the second guide groove 113.

[0114] like Figure 25-32 As shown, when a clockwise force is applied to the valve stem, the second driving surface 15144 is operably slid along the second starting part 14321 until it abuts against the second limiting part 14323. During this process, the second driving surface 15143 and the second ending part 14322 cooperate to push the guide post 144 from the opening of the second guide groove 113 into the second guide groove 113, causing the valve core 14 to tilt slightly toward the inner valve seat to perform a squeezing and sealing movement, so that the valve core 14 can fit tightly against the inner valve seat 12, making the valve closing effect better.

[0115] See Figures 33-44 , Figures 33-44 The diagram illustrates the process of a valve switching from a closed to an open state. Figures 33-40 The diagram illustrates the process of the valve core returning to its original position after slightly tilting inwards towards the valve seat. Figures 41-48 This diagram illustrates the process of switching the valve core from a closed state to a fully open state. Specifically, as shown... Figures 33-36 As shown, the valve stem 15 rotates counterclockwise. During the rotation of the valve stem 15, the second driving surface 15143 operably slides along the second end portion 14322 outward from the second starting portion 14321, unlocking the second driving surface 15143 from the second end portion 14322. Simultaneously, the first driving surface 15142 moves synchronously toward the first starting portion 14311. Figures 37-40 As shown, when a counterclockwise force is applied to the valve stem, the first driving surface 15142 is operably slid along the first starting portion 14311 to engage with the first limiting portion 14313, and the first driving surface 15141 engages with the first ending portion 14312, and the guide post 144 slides out from the second guide groove 113.

[0116] like Figures 41-44 As shown, if a counterclockwise force is applied to the valve stem, the first driving surface 15142 and the first limiting part 14313 cooperate to operably drive the valve core 14 to rotate radially along the channel 110, causing the guide post 144 to rotate in a direction away from the second guide groove 113, until the valve stem 15 rotates counterclockwise to the position shown. Figures 13-16 As shown in the figure, valve core 14 is in the fully open position.

[0117] See also Figure 4 and Figure 8 In this embodiment, the valve core 14 has a first valve core limiting rib 145 and a second valve core limiting rib 146 on the side opposite to the valve stem 15. The wall of the channel 110 has a valve seat limiting rib 116. When the valve core 14 is in a fully open state or in a closed state, one of the first valve core limiting rib 145 and the second valve core limiting rib 146 abuts against the valve seat limiting rib 116 to limit the rotation angle of the valve core.

[0118] The second embodiment of this utility model provides a second type of valve 200. For example... Figure 45 and Figure 46 As shown, the valve 200 has a basically the same structure as the valve 100 in the first embodiment, and also includes a valve body 21, an inner valve seat 22, a flange 23, a valve core 24, a valve stem 25, a valve cover 26, and a fixing clip 27. The assembly relationship between the components is basically the same as the assembly relationship of the corresponding components in the valve 100 in the first embodiment, so it will not be described in detail.

[0119] The main difference between valve 200 in this embodiment and valve 100 in the first embodiment lies in the different positions of the second guide groove and guide post. Specifically, see... Figures 47-49 A guide post 214 is provided on the inner wall of the valve body 21 channel, and a first guide groove 243 and a second guide groove 244 are provided on the mounting part of the valve core 24 facing the valve stem 25. The inner wall surface of the first guide groove 243 has a first guide surface that is configured to cooperate with the second guide surface on the valve stem 25.

[0120] See Figure 50 and Figure 51The second guide surface on the valve stem 25 is the same as the second guide surface in the first embodiment, including a first drive module surface and a second drive module surface that are arranged opposite to each other and spaced apart. The first drive module surface has a first drive surface 25141 and a first driving surface 25142 connected in sequence, and the second drive module surface has a second drive surface 25143 and a second driving surface 25144 connected in sequence.

[0121] The first guide groove 243 includes a first wall surface 2431 and a second wall surface 2432 spaced apart along the axial direction of the valve core. The first guide surface includes a first inner contour guide surface and a second inner contour guide surface respectively disposed on the first wall surface 2431 and the second wall surface 2432. The first inner contour guide surface includes a first starting portion 24311, a first ending portion 24312 and a first limiting portion 24313 that are sequentially connected and extend in different directions, and the second inner contour guide surface includes a second starting portion 24321, a second ending portion 24322 and a second limiting portion 24323 that are sequentially connected and extend in different directions.

[0122] See also Figure 48 and Figure 49 The valve core 24 is also provided with a guide edge 245 on the mounting part, which can guide the guide post 214 into the second guide groove 244.

[0123] See Figures 50-62 , Figures 50-62 The diagram illustrates the process of a valve switching from the open to the closed state. Figures 50-51 A schematic diagram is shown with the valve core fully open. Figures 52-53 A schematic diagram is shown with the valve core in a half-open state; Figures 54-55 A schematic diagram is shown with the valve core in the closed state. Figures 56-57 This diagram shows the valve core in the closed position with the valve core tilted at a certain angle towards the valve cover. Specifically, as shown... Figures 52-55 As shown, the valve stem 25 rotates clockwise. During the rotation of the valve stem 25, the second driving surface 25144 abuts against the second starting part 24321, causing the valve core 24 to rotate clockwise to the open-angle closed state. At the same time, the opening end of the second guide groove 244 on the valve core 24 rotates to be directly opposite the guide post 214.

[0124] like Figures 56-59 As shown, when a clockwise force is applied to the valve stem, the second driving surface 25144 is operably slid along the second starting part 24221 until it abuts against the second limiting part 24223. During this process, the second driving surface 15143 and the second ending part 24322 cooperate to push the second guide groove 244 toward the guide post 214, causing the valve core 24 to tilt slightly toward the inner valve seat to perform a squeezing and sealing movement, so that the valve core 24 can fit tightly against the inner valve seat 22, making the valve closing effect better.

[0125] See Figures 60-65 , Figures 60-65 The diagram illustrates the process of a valve switching from a closed to an open state. Figures 60-61 The diagram illustrates the process of the valve core returning to its original position after slightly tilting inwards towards the valve seat. Figures 62-65 This diagram illustrates the process of switching the valve core from a closed state to a fully open state. Specifically, as shown... Figures 60-61 As shown, the valve stem 25 rotates counterclockwise. During the rotation of the valve stem 25, the second driving surface 25143 operably slides along the second end portion 24322 outward from the second starting portion 24321, unlocking the second driving surface 25143 from the second end portion 24322. Simultaneously, the first driving surface 25142 moves synchronously toward the first starting portion 24311. Figures 62-65 As shown, when a counterclockwise force is continuously applied to the valve stem, the first driving surface 25142 operably slides along the first starting portion 24311 to engage with the first limiting portion 24313, and the first driving surface 25141 engages with the first ending portion 24312, separating the second guide groove 244 from the guide post 214. When a counterclockwise force is further applied to the valve stem, the first driving surface 25142, in engagement with the first limiting portion 24313, operably drives the valve core 24 to rotate radially along the channel, causing the second guide groove 213 to rotate away from the guide post 214, until the valve stem 25 rotates counterclockwise to... Figures 50-51 As shown in the figure, valve core 24 is in the fully open position.

[0126] The third embodiment of this utility model provides a third type of valve 300. For example... Figures 67-72 As shown, the valve includes a valve body 31, an inner valve seat 32, a flange 33, a valve core 34, a valve stem 35, and a valve cover 36. A fixing clip 37 integrally formed with the valve body 31 is provided on the outer periphery of the valve body 31. The valve body 31 has a channel 310 penetrating the valve body 31. The flange 33 is located at one end of the valve body 31 and is sealed to the valve body. A flange sealing ring 38 is clamped between the flange 33 and the valve body 31. The flange 33 is used for docking with a container. The valve core 34 is movably disposed within the channel 310. The inner valve seat 32 is disposed within the channel 310 and is located on the side of the valve core 34 away from the flange 33, sealingly connected to the valve body 31. The valve stem 35 penetrates the valve body 31 and is drivenly connected to the valve core 34 located within the channel 310, so as to drive the valve core 34 to move and press against the inner valve seat 32 to close the channel 310 or drive the valve core 34 to separate from the inner valve seat 32 to open the channel 310. The valve cover 36 is located at the other end of the valve body 31 relative to the flange 33 and is sealed to the valve body 31. The valve cover 36 is used to cover the opening of the channel 110 away from the flange 13 when the container is not draining, so as to prevent debris from entering the channel 110 and affecting the opening and closing of the valve 10 and its sealing performance.

[0127] An outer valve seat 39 is also provided between the valve cover 36 and the valve body 31. The valve cover 36 can be operably pressed against the outer valve seat 39 to achieve a sealed connection between the valve cover 36 and the valve body 31. In this embodiment, the inner valve seat 32 and the outer valve seat 39 are fixedly connected to the valve body 31 by a positioning ring 391.

[0128] A positioning rod fixing hole 341 is provided on the side of the valve core 34 facing away from the valve stem 35. A positioning rod 342 is fixed on the valve body 31. The side of the valve core 34 facing away from the valve stem 35 is rotatably connected to the valve body 31 through the positioning rod 342. To ensure a seal between the positioning rod 342 and the valve body 31, a positioning rod sealing ring 3421 is also fitted onto the positioning rod 342. In this embodiment, the valve core 34 is the valve core of a ball valve.

[0129] The structure of the valve stem 35 is the same as that of the valve stem in the first embodiment, and will not be described again here. The side of the valve core 34 facing the valve stem 35 is a mounting part, and a first guide surface is provided on the mounting part. The guide rib of the valve stem 35 has a second guide surface. The second guide surface cooperates with the first guide surface to drive the valve core 34 to rotate radially along the channel 310 to the switching position. When the valve core 34 rotates to the switching position, it drives the end of the valve core 34 connected to the valve stem 35 to move toward the valve cover 36 to press the inner valve seat 32 to close the channel 310.

[0130] See Figure 71 The second guide surface is disposed on the guide rib 3514 of the valve stem 35, and includes a first drive module surface and a second drive module surface that are disposed opposite to each other and spaced apart. The first drive module surface has a first drive surface 35141 and a first driving surface 35142 connected in sequence, and the second drive module surface has a second drive surface 35143 and a second driving surface 35144 connected in sequence.

[0131] See also Figure 69 and Figure 70 The first guide surface is the contour surface within the first guide groove 343. The first guide groove 343 includes two inner walls spaced apart along the axial direction of the valve core 34. The first inner contour guide surface and the second inner contour guide surface are respectively disposed on the first wall surface 3431 and the second wall surface 3432. The first inner contour guide surface includes a first starting portion 34311, a first ending portion 34312, and a first limiting portion 14313 that are sequentially connected and extend in different directions. The second inner contour guide surface includes a second starting portion 34321, a second ending portion 34322, and a second limiting portion 34323 that are sequentially connected and extend in different directions. A guide post 344 is also provided on the mounting portion of the valve core 34.

[0132] See Figure 72The valve body 31 has a second guide groove 313 on the bottom edge of the mounting hole 311 facing the channel 310, which matches the guide post 344, and a guide edge 314 that guides the guide post 344 into the second guide groove 313. The second guide groove 313 is recessed along the axial direction of the channel and in a direction away from the flange 33. Preferably, the second guide groove 313 has a limiting edge 315 on the side away from the guide edge 314.

[0133] The valve stem 35 and valve core 34 cooperate to drive the valve core to open and close. Since the process of switching the valve from the open state to the closed state in this embodiment is the same as the valve switching process in the first embodiment, please refer to [reference needed]. Figures 13-32 The relevant details will not be elaborated here. Similarly, since the process of switching the valve from the closed state to the open state in this embodiment is the same as the valve switching process in the first embodiment, please refer to [link to relevant documentation]. Figures 33-44 The relevant content will not be elaborated here.

[0134] The fourth embodiment of this utility model provides a fourth type of valve 400. For example... Figure 73 and Figure 74 As shown, the valve 400 has a structure that is basically the same as that of the valve 300 in the third embodiment. It also includes a valve body 41, an inner valve seat 42, a flange 43, a valve core 44, a valve stem 45, a valve cover 46, a fixing clip 47, and an outer valve seat 49. The assembly relationship between the components is basically the same as that of the corresponding components in the valve 300 in the third embodiment, so it will not be described in detail.

[0135] The main difference between valve 400 in this embodiment and valve 300 in the third embodiment lies in the different positions of the second guide groove and guide post. Specifically, see... Figures 75-78 A guide post 414 is provided on the inner wall of the valve body 41 channel, and a first guide groove 443 and a second guide groove 444 are provided on the mounting part of the valve core 44 facing the valve stem 45. The inner wall surface of the first guide groove 443 has a first guide surface that is configured to cooperate with the second guide surface on the valve stem 45.

[0136] See Figure 78 The second guide surface on the valve stem 45 is the same as the second guide surface in the third embodiment, including a first drive module surface and a second drive module surface that are arranged opposite to each other and spaced apart. The first drive module surface has a first drive surface 45141 and a first driving surface 45142 connected in sequence, and the second drive module surface has a second drive surface 45143 and a second driving surface 45144 connected in sequence.

[0137] See Figures 75-76The first guide groove 443 includes a first wall surface 4431 and a second wall surface 4432 spaced apart along the axial direction of the valve core. The first guide surface includes a first inner contour guide surface and a second inner contour guide surface respectively disposed on the first wall surface 4431 and the second wall surface 4432. The first inner contour guide surface includes a first starting portion 44311, a first ending portion 44312 and a first limiting portion 44313 connected in sequence and extending in different directions, and the second inner contour guide surface includes a second starting portion 44321, a second ending portion 44322 and a second limiting portion 44323 connected in sequence and extending in different directions. The mounting portion of the valve core 44 is also provided with a guide edge 445 capable of guiding the guide post 414 into the second guide groove 444.

[0138] The valve stem 35 and valve core 34 cooperate to drive the valve core to open and close. Since the process of switching the valve from the open state to the closed state in this embodiment is the same as the valve switching process in the second embodiment, please refer to [reference needed]. Figures 50-62 The relevant details will not be elaborated here. Similarly, since the process of switching the valve from the closed state to the open state in this embodiment is the same as the valve switching process in the first embodiment, please refer to [link to relevant documentation]. Figures 60-65 The relevant content will not be elaborated here.

[0139] The preferred embodiments of this utility model have been described in detail above. However, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to this utility model. These equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A valve, characterized in that, include: Valve body, wherein the valve body has a channel penetrating the valve body; A flange, which is sealed to one end of the valve body; A valve core, which is movably disposed within the channel; An inner valve seat is disposed within the channel and is sealed to the valve body; A valve stem that passes through the valve body and is driven to connect with the valve core. The valve core has a first guide surface at one end facing the valve stem, and the valve stem has a second guide surface that matches the first guide surface. The valve core and the inner wall of the channel are respectively provided with one of a matching guide groove and a guide post, and the guide groove extends along the axial direction of the channel; The inner wall of the channel or the end of the valve core facing the valve stem is also provided with a guide edge, which is connected to the guide groove; The valve stem and the valve core are driven to perform a first movement and a second movement by the cooperation of the second guide surface and the first guide surface. The first movement is the radial rotation of the valve core along the channel, and the second movement is the axial deflection of the valve core along the channel. During the first movement, the guide post moves along the guide edge, and when the valve core rotates to the switching position, the guide post faces the opening of the guide groove; In the second movement, the valve stem can drive the valve core and the end connected to it to move toward the inner valve seat, causing the guide post to move into the guide groove, and the valve core to press the inner valve seat toward the inner valve seat to close the channel.

2. The valve as described in claim 1, characterized in that, The inner valve seat is located on the side of the valve core that is relatively far away from the flange.

3. The valve as described in claim 1, characterized in that, The first guide surface includes a first guide module surface and a second guide module surface that are arranged opposite to each other and spaced apart. The second guide surface of the valve stem includes a first drive module surface and a second drive module surface that are arranged opposite to each other and spaced apart. The valve core is driven to move by the cooperation of the first drive module surface and the first guide module surface to open the channel. The valve core is driven to move by the cooperation of the second drive module surface and the second guide module surface to close the channel.

4. The valve as described in claim 3, characterized in that, The valve core is provided with a guide block protruding towards the valve stem at one end. The guide block includes a first guide module and a second guide module that are arranged opposite to each other and spaced apart. The first guide module surface and the second guide module surface are respectively disposed on the first guide module and the second guide module.

5. The valve as described in claim 3, characterized in that, The valve core has a guide groove recessed away from the valve stem at one end facing the valve stem. The guide groove has a first wall and a second wall that are opposite to each other and spaced apart. The first guide module surface and the second guide module surface are respectively disposed on the first wall and the second wall.

6. The valve as described in claim 4 or 5, characterized in that, The first guide module surface includes a first starting part, a first ending part, and a first limiting part that are sequentially connected and extend in different directions; the second guide module surface includes a second starting part, a second ending part, and a second limiting part that are sequentially connected and extend in different directions. The first drive module surface includes a first drive surface and a first driving surface that are connected in sequence and face different directions; the second drive module surface includes a second drive surface and a second driving surface that are connected in sequence and face different directions. The first driving surface is operably slidable along the first starting portion to engage with the first limiting portion, and the first driving surface engages with the first ending portion to disengage the guide post from the guide groove; the first driving surface engaging with the first limiting portion operably drives the valve core to rotate radially along the channel so that the guide post rotates in a direction away from the guide groove. The second driving surface is operably slidable along the second starting portion to engage with the second limiting portion, and the second driving surface engages with the second ending portion to allow the guide post to move from the opening of the guide groove into the guide groove; the second driving surface engaging with the second limiting portion operably drives the valve core to rotate radially along the channel so that the guide post rotates toward the guide groove.

7. The valve as claimed in claim 1, characterized in that, The guide groove is disposed on the inner wall of the channel, and the guide post is disposed at the end of the valve core facing the valve stem.

8. The valve as claimed in claim 1, characterized in that, The guide post is disposed on the inner wall of the channel, and the guide groove is disposed at the end of the valve core facing the valve stem.

9. The valve as claimed in claim 1, characterized in that, The inner wall of the channel or the end of the valve core facing the valve stem is provided with a limiting edge located next to the guide groove. When the guide post abuts against the limiting edge, the guide post is directly opposite the opening of the guide groove.

10. The valve as claimed in claim 1, characterized in that, The inner wall of the channel or the end of the valve core facing the valve stem is provided with a guide edge and a limiting edge. One end of the guide edge is directly opposite to the limiting edge and is spaced apart. The gap between the end of the guide edge directly opposite the limiting edge and the limiting edge forms the guide groove.

11. The valve as claimed in claim 1, characterized in that, The wall of the channel has valve body limiting ribs, and the valve core has a first valve core limiting rib and a second valve core limiting rib on the side opposite to the valve stem; when the valve core is in the switching position, the first valve core limiting rib abuts against the valve body limiting rib; when the valve core is in the position of maximum valve flow, the second valve core limiting rib abuts against the valve body limiting rib.

12. The valve as claimed in claim 1, characterized in that, The valve is either a butterfly valve or a ball valve.

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