Valve return mechanism and valve assembly

Abstract

The application relates to the technical field of valves, and provides a valve reset mechanism and a valve assembly, which can solve the problems that a valve reset mechanism is complex in structure, difficult to process, and incapable of dustproofing and waterproofing. The valve reset mechanism comprises a base, a reset rod, an operating rod and a protective cover, wherein the base comprises a base body, a guide inclined surface and a guide hole arranged on the base body, a first end of the base body is used for being connected with a shell of a valve, the guide inclined surface gradually moves away from the first end of the base body; the reset rod is movably arranged in the guide hole, a first end of the reset rod is located on one side of the guide hole and is used for being connected with a valve rod of the valve, and a second end of the reset rod is located on the other side of the guide hole; the operating rod is arranged at a position close to the second end of the reset rod, the operating rod is matched with the guide inclined surface and can drive the reset rod to move to a preset position along the guide hole; in the case that the reset rod moves to the preset position along the guide hole, the protective cover is detachably connected with the base, and the reset rod is located in a space surrounded by the protective cover and the base.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a valve reset mechanism and valve assembly. Background Technology

[0002] Currently, to save effort, valve reset mechanisms use two symmetrical gear wrenches to drive a central rack, which in turn pulls the reset rod to move, thus resetting the valve.

[0003] Although wrenches with symmetrical gears can save effort, the structure of geared wrenches and rack-and-pinion reset rods is complex and difficult to manufacture. Furthermore, the entire structure is not dustproof or waterproof, which can affect the lifespan of the mechanism or valve. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a valve reset mechanism and valve assembly, which has a simple structure, is easy to process, and is dustproof and waterproof.

[0005] In a first aspect, this application provides a valve reset mechanism, including a base, a reset rod, an operating rod, and a protective cover. The base includes a body, a guide ramp and a guide hole disposed on the body. A first end of the body is used to connect with the valve housing, and the guide ramp gradually moves away from the first end of the body. The reset rod is movably disposed in the guide hole, with its first end located on one side of the guide hole for connection with the valve stem, and its second end located on the other side of the guide hole. The operating rod is disposed near the second end of the reset rod, and the operating rod, in cooperation with the guide ramp, can drive the reset rod to move along the guide hole to a preset position. When the reset rod moves along the guide hole to the preset position, the protective cover is detachably connected to the base, and the reset rod is located within the space enclosed by the protective cover and the base.

[0006] The valve reset mechanism provided in this application allows for valve reset by connecting the first end of the base to the valve body at a specific location. The base features a guide ramp and guide hole, through which the reset rod passes. The first end of the reset rod connects to the valve stem, while the second end connects to an operating rod that engages with the guide ramp. By moving the operating rod along the guide ramp, the reset rod gradually moves away from the valve, effectively lifting the valve body and resetting the valve. During reset, a protective cover is included, easily detachable from the base, protecting the reset rod and preventing dust or water from entering the valve body and affecting the valve reset mechanism or even the valve's lifespan. Furthermore, the simple combination of the pull rod and ramp allows for effortless operation. The structure itself lacks complex components like gears and racks, making it simple, easy to manufacture, and cost-effective.

[0007] In some implementations, the protective cover has at least an observation window made of transparent material, which is positioned at the second end of the reset lever.

[0008] In some implementations, the protective cover is threaded onto the base.

[0009] In some implementations, the valve reset mechanism also includes a sealing ring disposed between the guide hole and the reset rod.

[0010] In some implementations, the extension direction of the operating rod is perpendicular to the extension direction of the guide hole, the guide ramp is set towards the second end of the reset rod, and the operating rod and the guide ramp are slidably engaged.

[0011] In some implementations, there are two guide ramps, both centered on the central axis of the guide hole. The two guide ramps are spaced apart and are symmetrical about a point on the central axis of the guide hole. Both ends of the operating rod extend out of the reset rod and are slidably engaged with the two guide ramps respectively.

[0012] In some implementations, a spiral groove is formed on the base, and the guide slope is close to the lower surface of the valve body, where the operating rod can slide within the spiral groove.

[0013] In some implementations, the operating lever is detachably connected to the reset lever.

[0014] In some implementations, the reset rod has a mounting hole, and the operating rod is fitted into the mounting hole with clearance.

[0015] Secondly, this application provides a valve assembly, including a valve and a valve reset mechanism as described in the first aspect, wherein the valve includes a housing and a valve stem disposed within the housing, the valve stem being used to control the opening and closing of the valve; a first end of the base of the valve reset mechanism is connected to the housing, and a first end of the reset rod is connected to the valve stem.

[0016] In the valve assembly of this application, since it includes the valve reset mechanism of the first aspect, the valve can be reset conveniently and effortlessly, achieving the same beneficial effect. That is, the structure is simple and easy to manufacture, and it is dustproof and waterproof. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic cross-sectional view of the valve assembly according to an embodiment of this application;

[0020] Figure 2 This is a cross-sectional structural diagram of the valve reset mechanism according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the valve reset mechanism without the protective cover installed according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the base of the valve reset mechanism according to an embodiment of this application;

[0023] Figure 5 This is a schematic cross-sectional view of the base of the valve reset mechanism according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Valve; 11. Body; 12. Valve stem; 2. Valve reset mechanism; 21. Base; 211. Matrix; 2111. Recess; 212. Guide slope; 213. Guide hole; 22. Reset rod; 221. Mounting hole; 23. Operating rod; 24. Protective cover; 25. Sealing ring. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0032] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0035] The following is a detailed description of this application.

[0036] An embodiment of this application provides a valve reset mechanism 2 that can be disposed on a valve 1 for controlling the reset of the valve 1. Reset can be achieved by opening the valve 1.

[0037] Embodiments of this application also provide a valve assembly, which includes a valve 1 and a valve reset mechanism 2.

[0038] For ease of understanding, taking valve 1 in the valve assembly of this application embodiment as an example, we will introduce the types of valve 1 to which the valve reset mechanism 2 can be applied.

[0039] Reference Figure 1 Valve 1 may include a housing 11 and a valve stem 12 disposed within the housing 11. The valve stem 12 is used to control the opening and closing of valve 1.

[0040] It should be understood that valve 1 contains other components that enable its basic functions. For example, valve 1 may have a locking device that locks the valve stem 12 when it is reset to a preset position, keeping valve 1 open. When certain conditions are met within valve 1, the locking device automatically opens, unlocking the valve stem 12. At this point, the valve stem 12 can be pulled back using a recovery structure within valve 1, thereby closing valve 1.

[0041] The valve 1 can be configured to meet certain conditions, such as preset pressure values. When these preset pressure thresholds are reached or exceeded, the valve stem 12 is unlocked, and the valve 1 is closed. The recovery structure within the valve 1 can be a spring, which can pull the valve stem 12 back using the elastic force generated by its elastic deformation.

[0042] In addition, the reset of valve 1 referred to in the embodiments of this application may be to open valve 1.

[0043] The valve reset mechanism 2 in the related technology has a relatively complex structure and cannot guarantee a seal. Dust or moisture can easily enter the mechanism and valve 1, affecting the life cycle of the mechanism or valve 1.

[0044] The valve reset mechanism 2 and valve assembly provided in this application embodiment can solve the above problems, and have a simple structure that is easy to process and can be dustproof and waterproof.

[0045] Specifically, refer to Figure 2This application provides a valve reset mechanism 2, including a base 21, a reset rod 22, an operating rod 23, and a protective cover 24. The base 21 includes a base body 211, a guide slope 212 disposed on the base body 211, and a guide hole 213. The first end of the base body 211 is used to connect with the housing 11 of the valve 1, and the guide slope 212 gradually moves away from the first end of the base body 211. The reset rod 22 is movably disposed in the guide hole 213, with the first end located on one side of the guide hole 213 for connecting with the valve stem 12 of the valve 1, and the second end located on the other side of the guide hole 213. The operating rod 23 is disposed near the second end of the reset rod 22. The operating rod 23 cooperates with the guide slope 212 to drive the reset rod 22 to move along the guide hole 213 to a preset position. When the reset rod 22 moves along the guide hole 213 to the preset position, the protective cover 24 is detachably connected to the base 21, and the reset rod 22 is located within the space enclosed by the protective cover 24 and the base 21.

[0046] The valve reset mechanism 2 provided in this application allows the first end of the base 211 of the base 21 to be connected to the valve body 11 when the valve 1 needs to be reset. Since the base 211 has a guide slope 212 and a guide hole 213, the reset rod 22 can pass through the guide hole 213, with its first end connected to the valve stem 12 of the valve 1 and its second end connected to an operating rod 23, which engages with the guide slope 212. Thus, by moving the operating rod 23 along the guide slope 212, the reset rod 22 can be gradually moved away from the valve 1, achieving a lifting effect on the valve body and resetting the valve 1. When the valve 1 is reset, a protective cover 24 is also included. The protective cover 24 can be easily and detachably connected to the base 21, protecting the reset rod 22 inside and preventing dust or water from entering the valve body through the reset rod 22, thus affecting the service life of the valve reset mechanism 2 and even the valve 1. Moreover, the simple combination of a pull rod and an inclined plane allows for effortless operation. The structure itself does not have more intricate components such as gears and racks, making the entire structure simple, easy to manufacture, and cost-effective.

[0047] It should be noted that the base 21 including the base body 211 means that the base 21 is the basic structure of the entire component. It first includes a body that can serve as a foundation, referred to here as the base body 211. The required structure can be set on the base body 211. Moreover, other structures that have a mating relationship with the base 21 can also be said to have a mating relationship with the physical structure of the base body 211.

[0048] The first end of the base 211 of the base 21 is connected to the housing 11 of the valve 1. This connection can be detachable, such as a threaded connection, snap-fit ​​connection, or fastener connection. For example, see [reference needed]. Figure 2The first end of the base 211 is provided with a recess 2111 with internal threads, and the internal threads of the recess 2111 are used to connect with the housing 11 of the valve 1.

[0049] The guide ramp 212 refers to a structure formed on the base 211, which has an inclined surface and can guide the operating rod 23 to move along the ramp. The guide ramp 212 has a structure that gradually moves away from the first end of the base 211, so that when the operating rod 23 moves along the guide ramp 212, it will move further and further away from the first end of the base 211, thereby pulling the reset rod 22 to move within the guide hole 213. The reset rod 22 can pull the valve stem 12 of the valve 1 connected to it outward, thereby resetting the valve body and opening the valve 1.

[0050] The reset rod 22 moves along the guide hole 213 to a preset position, which can be a pre-set height distance. This distance allows the reset rod 22 to pull the valve stem 12 outward by a distance sufficient to reset the valve 1. Furthermore, the guide slope 212 has at least two points, a start and a stop, and the difference between these two points along the direction of movement of the reset rod 22 can be equal to the pre-set height distance, thus enabling the reset of the valve 1.

[0051] Based on this, the rise angle of the guide ramp 212 can be set according to the displacement distance of the preset position. In other words, the rise angle of the guide ramp 212 can be designed according to the displacement required by the reset rod 22.

[0052] The protective cover 24 is detachably connected to the base 21, which allows the protective cover 24 to be removed when operating the operating lever 23, making it convenient for personnel to operate; after the operation is completed, the protective cover 24 can be installed on the base 21 to protect the reset lever 22 and other structures, and prevent dust and moisture from entering the valve reset mechanism 2 or valve 1.

[0053] The valve reset mechanism 2 is connected to the housing 11 of the valve 1 via the first end of the base 211, and the first end of the reset rod 22 is connected to the valve stem 12 of the valve 1. The valve reset mechanism 2 can be fixed to one end of the valve 1, resetting the valve 1 when needed. (Refer to...) Figure 3 The valve stem 12 of valve 1 can be vertical, and the valve reset mechanism 2 can be set at the top of valve 1. That is, the valve reset mechanism 2 is located above valve 1, and the valve 1 is reset by pulling the valve stem 12 upward.

[0054] For ease of description, the following example, with valve stem 12 of valve 1 in a vertical direction and valve reset mechanism 2 located at the top of valve 1, will be used to illustrate the solution of the embodiment of this application in detail.

[0055] After the valve reset mechanism 2 resets the valve 1, the protective cover 24 is sealed on top. When certain conditions are met inside the valve 1, the valve stem 12 and the reset rod 22 will be pulled downwards to close the valve body. In order to make it easy to see the state of the valve body without removing the protective cover 24, in some embodiments of this application, the protective cover 24 has at least an observation window made of transparent material, which is provided at the second end of the reset rod 22.

[0056] Because an observation window made of transparent material is provided on the protective cover 24, the position of the reset rod 22 can be easily seen through the observation window, and the current state of the valve body can be obtained, provided that it is dustproof and waterproof.

[0057] Of course, the observation window on the protective cover 24 can be part of the protective cover 24, or the entire protective cover 24 can be made of transparent material, that is, the observation window covers the entire protective cover 24, making observation more convenient.

[0058] Based on this, scale marks can be set on the observation window to indicate the position of the reset rod 22 in two different states, which is convenient for comparison and makes it easier to identify the position of the reset rod 22 and clarify the state of the valve body.

[0059] Transparent materials can be materials such as plexiglass and transparent plastic.

[0060] The detachable connection between the protective cover 24 and the base 211 can be a threaded connection, a snap-fit ​​connection, a fastener connection, etc., and there are no restrictions here. See the example below. Figure 2 In some embodiments of this application, the protective cover 24 is threadedly connected to the base 21.

[0061] To further enhance dustproof and waterproof performance, a seal can be provided at the connection between the protective cover 24 and the base 21. This seal can further improve the sealing effect between the protective cover 24 and the base 21. Here, the seal can be a gasket. Alternatively, when installing a gasket, corresponding grooves can be made on the base 21 and / or the protective cover 24 for positioning and installing the gasket.

[0062] In some extreme environments, such as prolonged rain or seepage, some moisture may accumulate inside the protective cover 24. To prevent moisture and other impurities from entering the valve body from inside the protective cover 24, a sealing structure can be installed between the protective cover 24 and the valve body. (Refer to...) Figure 2 In some embodiments of this application, the valve reset mechanism 2 further includes a sealing ring 25, which is disposed between the guide hole 213 and the reset rod 22.

[0063] In this way, the sealing ring 25 can seal the gap between the guide hole 213 and the reset rod 22, so that the water vapor in the protective cover 24 cannot enter the valve body through the sealing guide hole 213, further improving the dustproof and waterproof effect and increasing the service life of the valve body.

[0064] Reference Figure 2 and Figure 3 In some embodiments of this application, the extension direction of the operating rod 23 is perpendicular to the extension direction of the guide hole 213, the guide slope 212 is disposed toward the second end of the reset rod 22, and the operating rod 23 and the guide slope 212 are slidably engaged.

[0065] Taking the valve stem 12 as being vertically oriented as an example, in this embodiment, the guide hole 213 and the reset rod 22 are also vertically oriented, and the central axes of the valve stem 12, guide hole 213, and reset rod 22 can be collinear. To facilitate the application of force by the operating rod 23, the extension direction of the operating rod 23 is perpendicular to the extension direction of the guide hole 213, that is, the operating rod 23 can be horizontally oriented, the guide slope 212 is oriented upwards, and the lower side of the operating rod 23 can slide in cooperation with the guide slope 212. In other words, after the operating rod 23 is subjected to force, it can rotate horizontally, and the lower side of the operating rod 23 slides on the guide slope 212. As the guide slope 212 gradually rises, the operating rod 23 also gradually rises, causing the reset rod 22 to move vertically upwards within the guide hole 213. The reset rod 22 then pulls the valve stem 12 connected to it upwards, thereby resetting the valve 1.

[0066] To ensure stable movement during the engagement of the operating lever 23 and the guide ramp 212, refer to... Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, there are two guide ramps 212, both of which are centered on the central axis of the guide hole 213. The two guide ramps 212 are spaced apart and are symmetrical about a point on the central axis of the guide hole 213. Both ends of the operating rod 23 extend out of the reset rod 22 and are slidably engaged with the two guide ramps 212 respectively.

[0067] By having two centrally symmetrically arranged guide ramps 212 cooperate with the two ends of the operating rod 23, when the operating rod 23 rotates horizontally, both ends are subjected to the upward pushing force of the two guide ramps 212 respectively, and the force is uniform. Since the two guide ramps 212 are centrally symmetrically arranged, the movement height of the two ends of the operating rod 23 can also be kept consistent. The rotation of the operating rod 23 drives the reset rod 22 to move vertically upward steadily along the guide hole 213.

[0068] Moreover, the operating lever 23 is equivalent to a lever, and force can be applied to both ends, making it easier to apply external force with both hands, thus making the operation more convenient.

[0069] The guide ramp 212 is disposed on the base 211 and faces upward. The guide ramp 212 can limit and guide the lower part of the operating rod 23. In some embodiments, it can also limit and guide the upper part of the operating rod 23. That is, a spiral groove is formed on the base 21, and the guide ramp 212 is the spiral groove near the lower surface of the valve 1 housing 11. The operating rod 23 can slide and fit in the spiral groove.

[0070] In this way, when the operating rod 23 moves along the guide slope 212, it is not only limited and guided by the guide slope 212 on its lower side, but also limited and guided by the upper slope of the spiral groove on the upper side of the operating rod 23, making the movement of the operating rod 23 more stable and less likely to come out.

[0071] Furthermore, since the upper inclined surface of the spiral groove has a limiting and guiding effect on the upper side of the operating rod 23, in some cases, when the operating member rotates in the opposite direction, it can push the reset rod 22 and the valve stem 12 to move downward, which helps to close the valve body.

[0072] In some embodiments of this application, the operating lever 23 is detachably connected to the reset lever 22. This allows the operating lever 23 to be disassembled and reused after the valve body reset operation is completed, reducing the number of parts in the valve reset mechanism 2 under normal conditions and lowering costs. The protective cover 24 only needs to seal the reset lever 22 inside, making the design of the protective cover 24 more flexible and allowing for smaller dimensions and reduced costs.

[0073] On the other hand, since the operating lever 23 is detachable, its horizontal length can be made longer, extending beyond the protective cover 24. A longer operating lever 23 increases the lever arm, reducing the force required to rotate it and making operation easier.

[0074] The operating lever 23 is detachably connected to the reset lever 22, and can be implemented in various ways, such as fastener connection, threaded connection, connection of protrusion and slot, etc.

[0075] In some embodiments of this application, the reset rod 22 is provided with a mounting hole 221, and the operating rod 23 is disposed in the mounting hole 221 with clearance fit, so as to realize the detachable connection between the operating rod 23 and the reset rod 22.

[0076] The mounting hole 221 can be round, square, polygonal, or similar shapes, and the outer diameter of the operating rod 23 is adapted to the shape of the mounting hole 221. In the case where the mounting hole 221 is round, the operating rod 23 is cylindrical, which facilitates the insertion of the operating rod 23 into the mounting hole 221, and the cylindrical shape of the operating rod 23 makes it easy to grip and apply force.

[0077] This application also provides a valve assembly, see embodiments thereof. Figure 1 The device includes a valve 1 and a valve reset mechanism 2 as described in the above embodiment. The valve 1 includes a housing 11 and a valve stem 12 disposed within the housing 11. The valve stem 12 is used to control the opening and closing of the valve 1. The first end of the base 211 of the valve reset mechanism 2 is connected to the housing 11, and the first end of the reset rod 22 is connected to the valve stem 12.

[0078] In the valve assembly of this application embodiment, since the valve reset mechanism 2 described above is included, the valve 1 can be reset conveniently and effortlessly, achieving the same beneficial effect. That is, the structure is simple and easy to manufacture, and it is dustproof and waterproof.

[0079] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve reset mechanism (2), characterized in that, include: The base (21) includes a base (211), a guide slope (212) disposed on the base (211) and a guide hole (213), the first end of the base (211) is used to connect with the housing (11) of the valve (1), and the guide slope (212) gradually moves away from the first end of the base (211); The reset rod (22) is movably inserted into the guide hole (213), with its first end located on one side of the guide hole (213) for connection with the valve stem (12) of the valve (1), and its second end located on the other side of the guide hole (213). An operating lever (23) is positioned near the second end of the reset lever (22). The operating lever (23) cooperates with the guide inclined surface (212) to drive the reset lever (22) to move along the guide hole (213) to a preset position. The protective cover (24) is detachably connected to the base (21) when the reset rod (22) moves to a preset position along the guide hole (213), and the reset rod (22) is located in the space enclosed by the protective cover (24) and the base (21).

2. The valve reset mechanism (2) according to claim 1, characterized in that, The protective cover (24) has at least an observation window made of transparent material, which is provided at the second end of the reset rod (22).

3. The valve reset mechanism (2) according to claim 1, characterized in that, The protective cover (24) is threaded onto the base (21).

4. The valve reset mechanism (2) according to claim 1, characterized in that, The valve reset mechanism (2) also includes a sealing ring (25), which is disposed between the guide hole (213) and the reset rod (22).

5. The valve reset mechanism (2) according to any one of claims 1 to 4, characterized in that, The extension direction of the operating rod (23) is perpendicular to the extension direction of the guide hole (213), the guide slope (212) is disposed toward the second end of the reset rod (22), and the operating rod (23) and the guide slope (212) are slidably engaged.

6. The valve reset mechanism (2) according to claim 5, characterized in that, There are two guide ramps (212), both of which are centered on the central axis of the guide hole (213). The two guide ramps (212) are spaced apart and are symmetrical about a point on the central axis of the guide hole (213). Both ends of the operating rod (23) extend out of the reset rod (22) and are slidably engaged with the two guide ramps (212).

7. The valve reset mechanism (2) according to claim 5, characterized in that, The base (21) has a spiral groove, the guide slope (212) is the lower surface of the spiral groove near the valve (1) housing (11), and the operating rod (23) is slidably fitted in the spiral groove.

8. The valve reset mechanism (2) according to any one of claims 1 to 4, characterized in that, The operating lever (23) is detachably connected to the reset lever (22).

9. The valve reset mechanism (2) according to claim 8, characterized in that, The reset rod (22) is provided with a mounting hole (221), and the operating rod (23) is disposed in the mounting hole (221) with clearance fit.

10. A valve assembly, characterized in that, include: The valve (1) includes a housing (11) and a valve stem (12) disposed within the housing (11), the valve stem (12) being used to control the opening and closing of the valve (1); In the valve reset mechanism (2) as described in any one of claims 1 to 9, the first end of the base (211) is connected to the housing (11), and the first end of the reset rod (22) is connected to the valve stem (12).

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