Combination valve and valve assembly method

Abstract

The invention discloses a combined valve and a valve assembling method. The combined valve comprises a valve body forming a valve port, an actuator flange, a valve rod configured to penetrate through the actuator flange, and an end stop plate. The end stop plate is configured to interface with the valve stem such that rotation of the valve stem and the end stop plate about an axis of rotation of the valve is coupled to each other. The end stop plate is further configured to interface with the actuator flange such that rotation of the end stop plate about the axis of rotation is restricted in at least one direction, and during at least a portion of the stroke of rotation of the end stop plate about the axis of rotation, the end stop plate is configured to engage with the actuator flange such that rotation of the end stop plate about the axis of rotation is restricted in at least one direction. The end stop plate is prevented from translating away from the valve port along the axis of rotation. Thus, docking between the end stop plate and the actuator flange may perform multiple functions.

Description

Technical Field

[0001] This application relates to fluid control valves (e.g., butterfly valves), such as combined valves and valve assembly methods for heating, ventilation, and air conditioning (HVAC) applications. Background Technology

[0002] Many valves control fluid flow (e.g., opening, closing, or being in an intermediate state) via a shaft (also called a stem) connected to a rotating component (e.g., a disc or ball). These shafts are driven to rotate via actuators (e.g., handles, pneumatic or hydraulic actuators, or electric actuators), which in turn rotate the rotating component to achieve flow control.

[0003] An actuator may cause the rotating assembly to move in a potentially suboptimal manner. For example, an actuator may cause the rotating assembly to close with excessive force, leading to valve damage and / or premature wear. Furthermore, the shaft may break and eject from the valve toward the actuator, posing a safety hazard. Summary of the Invention

[0004] This document describes a valve. The valve includes a valve body forming a valve port, an actuator flange, a valve stem configured to pass through the actuator flange, and an end stop. The end stop is configured to abut the valve stem such that rotation of the valve stem and the end stop about a rotation axis of the valve is coupled together. The end stop is further configured to abut the actuator flange such that rotation of the end stop about the rotation axis is restricted in at least one direction, and during at least a portion of the travel of rotation of the end stop about the rotation axis, the end stop is prevented from translating away from the valve port along the rotation axis.

[0005] This document also describes a method for assembling a valve. The method includes arranging an end stop plate such that a cutout on the end stop plate aligns with a lug on the actuator flange of the valve. The method further includes translating the end stop plate along the rotation axis of the valve toward the valve port, causing it to enter a recess in the actuator flange, such that at least a portion of the end stop plate translates along the rotation axis past the lug. The method further includes rotating the end stop plate such that the translated portion of the end stop plate is positioned below the lug.

[0006] The above summary is for illustrative purposes only and should not be construed as limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent from the accompanying drawings and the detailed description below. In the drawings, the same reference numerals indicate the same or similarly functional elements. Attached Figure Description

[0007] Figure 1 An example valve with a combination of rotary stop and stem anti-dislodgement function is shown.

[0008] Figure 2A A first view of an example actuator flange that can be used with the example valve is shown.

[0009] Figure 2B A second view of an example actuator flange that can be used with the example valve is shown.

[0010] Figure 3A A first view of an example end stop plate that can be used with an example valve is shown.

[0011] Figure 3B A second view of an example end stop plate that can be used with an example valve is shown.

[0012] Figure 4 An example valve stem is shown that can be used in a valve with a combination of rotary stop and stem anti-dislodgement function.

[0013] Figure 5 An example assembly structure of an example valve is shown.

[0014] Figure 6 The assembly location of the example valve is shown.

[0015] Figure 7 The example valve is shown in its open position.

[0016] Figure 8 The example valve is shown in its closed position.

[0017] Figure 9 The assembly structure of another example valve with a combination of rotary stop and stem anti-dislodgement function is shown.

[0018] Figure 10 Another example of a valve in the closed position is shown.

[0019] Figure 11 The assembly structure of a third example valve with a combination of rotary stop and stem anti-dislodgement function is shown.

[0020] Figure 12 The closed position of the third example valve is shown.

[0021] Figure 13 An example combined stem / end stop plate is shown that can be used in valves with a combination of rotary stop and stem anti-dislodgement functions.

[0022] Figure 14An example method for assembling a valve with a combination of rotary stop and stem anti-dislodgement functions is shown. Detailed Implementation

[0023] Overview Actuators in rotary valves (e.g., butterfly or ball valves) may cause the valve's rotating components to move in an optimal manner. For example, the actuator may cause the rotating components to close with excessive force and / or rotate beyond the required closing angle, thereby damaging the valve and / or causing premature wear. Furthermore, the valve stem connected to the actuator may break and eject from the valve, causing damage and / or safety issues.

[0024] This document describes a valve. The valve includes a valve body forming a valve port, an actuator flange, a valve stem configured to pass through the actuator flange, and an end stop. The end stop is configured to abut the valve stem such that rotation of the valve stem and the end stop about a rotation axis of the valve is coupled together. The end stop is further configured to abut the actuator flange such that rotation of the end stop about the rotation axis is restricted in at least one direction, and during at least a portion of the travel of rotation of the end stop about the rotation axis, the end stop is prevented from translating away from the valve port along the rotation axis.

[0025] Therefore, the mating between the end stop and the actuator flange performs multiple functions (e.g., rotational hard stop and stem anti-disengagement). This improves safety while reducing valve cost and complexity (e.g., by using fewer parts than conventional valves).

[0026] In the following description, numerous specific details, such as particular structures, components, materials, dimensions, processing steps, and techniques, are set forth in order to facilitate understanding of the various embodiments of this application. However, those skilled in the art will understand that the various embodiments of this application can be practiced without these specific details. In other instances, well-known structures or processing steps have not been described in detail to avoid obscuring this application.

[0027] Example valve Figure 1An example of a valve 100 with a combination of rotary stop and stem anti-dislodgement functions is shown. The valve 100 is configured to control the flow of fluid. The fluid may be a liquid (e.g., water, a mixture of ethylene glycol, a refrigerant, mineral oil, or other chemicals, mixtures, or emulsions with a fixed volume) or a gas (e.g., air or other substances without a fixed volume). Although the valve 100 is shown in one feature / component embodiment, these features / components may be interchanged with any alternative embodiments described below without departing from the scope of this application.

[0028] Valve 100 includes a valve body 112 forming a valve port 102. The valve body 112 may have mounting provisions (e.g., an array of orifices) configured to mount the valve 100 between pipe flanges. The valve port 102 may have any size and / or structure. For example, the valve port 102 may be a generally circular orifice with dimensions corresponding to standard pipe sizes.

[0029] A valve disc 114 is provided within the valve port 102. The valve disc 114 can be configured to rotate relative to the valve port 102 to control the flow of fluid through the valve 100. Although the valve disc 114 is shown in the figure, the valve 100 may be a ball valve in place of the valve disc 114 without departing from the scope of this application.

[0030] The valve body 112 may include an actuator flange 104 configured to couple with an actuator (e.g., a handle, pneumatic or hydraulic actuator, or electric actuator). In some embodiments, the actuator flange 104 may be formed independently of the valve body 112 and then attached thereto.

[0031] A valve stem 106 is disposed through an actuator flange 104 and a valve body 112. The valve stem 106 may extend through a valve port 102 (as shown) or terminate at a valve port 102 (e.g., extending only to a valve port 102). A valve disc 114 may be attached to the valve stem 106 such that rotation of the valve stem 106 is coupled to rotation of the valve disc 114.

[0032] The end stop 108 is located inside the actuator flange 104 and coupled to the valve stem 106. The end stop 108 can be recessed into the actuator flange 104 so that the actuator does not impact the end stop 108 during installation. The end stop 108, valve stem 106, and valve disc 114 are all configured for rotational coupling so that they can rotate synchronously about the valve's rotation axis 110 (e.g., as a rotating assembly of valve 100).

[0033] Example actuator flange Figure 2A and Figure 2BFirst and second views of an example of actuator flange 104 are shown. The vertical reference directions are shown in the figures for convention and should not be interpreted as limiting.

[0034] Actuator flange 104 includes an actuator flange top surface 210. The actuator flange top surface 210 may be a flat surface and may be configured to mat with the actuator (with or without intermediate components such as gaskets). The actuator flange top surface 210 may be circular (as shown in the figure) or may have other shapes.

[0035] A recess 206 may be formed within the actuator flange 104. The recess 206 may be configured to receive an end stop 108 (see below). The recess 206 may be generally circular, with a diameter at least slightly larger than the radial extension (e.g., diameter) of the end stop 108. This allows the end stop 108 to rotate freely within the recess 206, which would otherwise cause it to become stuck within the recess 206 during rotation. The depth of the recess 206 may be at least slightly larger than the height or thickness of the end stop 108. This allows the end stop 108 to remain completely within the recess 206 within tolerances, which would otherwise cause it to extend outside the recess 206 and / or interact with the actuator.

[0036] The concave surface 208 at the bottom of the recess 206 can be a flat surface (as shown), or it can have a bend and / or curvature. A depth can be formed between the actuator flange top surface 210 and the concave surface 208 on at least one wall of the recess 206. As described above, the depth can be at least slightly greater than the height of the end stop plate 108.

[0037] A valve stem bore 212 is formed through the actuator flange 104 and communicates with the recess 206. The valve stem bore 212 can be aligned with the axis of rotation 110. Similarly, the recess 206 and / or the top surface 210 of the actuator flange can also be aligned with the axis of rotation 110. The diameter of the valve stem bore 212 can correspond to the diameter of the valve stem 106 and can extend from the recess 208 to the valve port 102.

[0038] One or more lugs 200 extend into the recess 206. For example, two lugs 200 may be used for a valve with a nominal opening angle of 90 degrees. The upper surface of the lugs 200 may be flush with the top surface 210 of the actuator flange. The lugs 200 are configured to abut against the end stop 108 to prevent the valve stem 106 from ejecting from the valve 100 and to limit the rotation of the valve stem 106 (and thus the valve disc 114).

[0039] Lug 200 can extend downward into recess 206. However, lug 200 may not contact recess 208. In other words, an undercut 204 can be formed between lug 200 and recess 208. Undercut 204 is configured to allow a portion of end stop 108 to extend below lug 200. Since this portion of end stop 108 is located below lug 200, and since valve stem 106 can be configured to be unable to translate over end stop 108, lug 200 can provide a valve stem anti-disengagement function.

[0040] To achieve rotational stop, the lug 200 includes a lug rotation surface 202. The lug rotation surface 202 is configured to abut a portion of the end stop plate 108 to prevent the end stop plate 108 from rotating beyond a specific angle. This specific angle may correspond to the closed state of the valve. Therefore, the abutment between the end stop plate 108 and the lug rotation surface 202 enables a hard rotational stop function.

[0041] Other features may be included within the actuator flange 104. For example, an actuator flange relief 214 may be included to make machining of the actuator flange 104 easier, faster, and / or more economical (e.g., to accommodate tool paths). Similarly, other features may be added or removed to implement or simplify the manufacture of the features described herein.

[0042] Example end stop plate Figure 3A and Figure 3B First and second views of an example of the end stop plate 108 are shown. The vertical reference directions are shown in the figures for convention and should not be interpreted as restrictive.

[0043] The end stop plate 108 may be generally flat in structure and have two or more thicknesses or heights. From Figure 3B As can be seen, the end stop plate 108 can also be roughly circular.

[0044] The end stop 108 includes one or more end stop translation portions 304, which are configured to extend below the lug 200. The height of the end stop translation portion 304 may correspond to the height of the undercut 204 (for example, if the end stop translation portion 304 extends from the bottom surface of the end stop 108, its height is slightly less than the height of the undercut 204). Therefore, the end stop 108 may have two heights: a first height corresponding to the end stop translation portion 304, and a second height corresponding to the general height of the end stop 108.

[0045] The end stop plate translation portion 304 includes a corresponding end stop plate translation surface 306, which is configured to abut against the lug 200 (e.g., the surface on the underside of the lug 200) to achieve an anti-disengagement function. The angular duration of the end stop plate translation surface 306 about the rotation axis 110 can be greater than 90 degrees (to achieve an anti-disengagement function for all operating angles of the valve 100). In other words, the end stop plate translation surface 306 can surround at least one-quarter of the circumference of the end stop plate 108.

[0046] The end stop 108 also includes an end stop rotating surface 310. The end stop rotating surface 310 is configured to mate with the lug rotating surface 202 to prevent the end stop 108 (and consequently the valve 100) from closing beyond a specific point. The end stop rotating surface 310 may be orthogonal to and connected to the end stop translational surface 306. Regardless of the configuration, the engagement of the end stop rotating surface 310 with the lug rotating surface 202 achieves a hard rotational stop of the valve 100.

[0047] The end stop 108 also includes a notch 308. The notch 308 is configured to allow the end stop 108 to translate at least partially over the lug 200 and into the recess 206 while maintaining a specific relative rotation between the end stop 108 and the actuator flange 104.

[0048] To couple the end stop 108 to the valve stem 106, an engagement hole 300 can be formed within the end stop 108. The engagement hole 300 can be centered on the rotation axis 110 and can be shaped in any way to allow rotational coupling between the valve stem 106 and the end stop 108. For example, the square hole shown in the figure allows for rotational coupling. Similarly, other shapes (triangular, hexagonal, D-shaped) can also be used to achieve rotational coupling. The angle between the engagement hole 300 and the rotation surface 310 of the end stop can correspond to the desired closed position / angle. It should be noted that a similar effect can be achieved when the end stop 108 is rotated 180 degrees around the valve stem 106.

[0049] Similar to the actuator flange 104, the end stop plate 108 may include any number of end stop plate grooves 302, depending on how it is manufactured. Without departing from the scope of this application, the number of end stop plate grooves 302 on the end stop plate 108 may be more or less than the number shown in the figures, and their dimensions and structures may be different.

[0050] Example valve stem Figure 4An example of a valve stem 106 that can be used in a valve with a combination of rotary stop and stem anti-disengagement functions is shown. The valve stem 106 is generally cylindrical and configured to rotate about a rotation axis 110. The length of the valve stem 106 can be configured to extend from above the actuator flange 104 and through the valve port 102.

[0051] The bottom of the valve stem 106 may include a chamfer 400 (or fillet) and the valve stem 106 abuts against the valve body 112 at the bottom of the valve port 102. The valve stem may also include a valve mounting portion 402 configured to allow the valve disc 114 to be attached to the valve stem 106.

[0052] The top of the valve stem 106 may include a mating portion 404. The mating portion 404 may be configured to extend through the end stop plate 108 and abut against an actuator. The mating portion 404 may include one or more flat surfaces 406, and its cross-sectional area may be smaller than the rest of the valve stem 106 (e.g., the maximum cross-sectional dimension of the mating portion 404 may be smaller than the maximum diameter of the valve stem 106). The shape of the mating portion 404 may correspond to an engagement hole 300 on the end stop plate 108. For example, if the engagement hole is square, the mating portion 404 may also be square (e.g., having four flat surfaces 406).

[0053] It should be noted that the joint 404 may not be uniform in length. For example, the interface that mates with the actuator may differ from the interface of the engagement hole 300. Therefore, a first portion of the joint 404 may be configured to mate with the engagement hole 300, while a second portion may be configured to mate with the actuator. Furthermore, the joint 404 may also be configured to mate with an adapter disposed between the valve 100 and the actuator.

[0054] One or more stem translation surfaces 408 may be provided at the base of the joint 404. The stem translation surfaces 408 are configured to abut against the area surrounding the engagement hole 300 in the end stop plate 108. The stem translation surfaces 408 are configured to transfer longitudinal loads generated by the stem 106 (e.g., loads due to stem 106 failure) to the end stop plate 108. In some embodiments, snap rings or other devices may be used separately or additionally to facilitate such load transfer.

[0055] Example assembly structure and operation Figure 5 The assembly structure of valve 100 is shown. In the illustrated example, valve stem 106 is installed in valve body 112 (e.g., inserted through valve stem hole 212), valve disc 114 is attached to valve stem 106, and valve disc 114 is opened to the assembly position (e.g., greater than 90 degrees relative to the open position, such as 115 degrees).

[0056] The end stop 108 can be aligned with the valve stem 106 and slide over the engagement 404 such that the cutout 308 aligns with the lug 200. As described above, the orientation of the end stop 108 can be a rotation of the same 180 degrees about the axis of rotation 110. In some embodiments, the end stop 108 can only slide over the engagement 404 in a single manner (e.g., if the engagement has only a single flat surface 406).

[0057] The end stop plate 108 can slide downward along the joint 404 until the lower side of the end stop plate 108 reaches the concave surface 208 (or at least until the translational surface 306 of the end stop plate is below the lug 200). When the end stop plate 108 is in the concave surface 206 and the valve disc 114 is in the assembled position (e.g., closing angle 115 degrees), the valve 100 is in the assembled position.

[0058] Figure 6 The valve 100 is shown in the assembled position. As described above, the valve disc 114 can be at an assembly angle 702 greater than the opening angle of the valve disc 114 (e.g., parallel to the valve body 112 or at 115 degrees to the closed position of the valve disc 114). In the assembled position, the end stop plate 108 can freely translate out of the recess 206 because the end stop plate translation portion 304 is not located within the undercut 204 (e.g., below the lug 200). Furthermore, it should be noted that in the assembled position, the rotation angle of the valve disc 114 and / or the valve stem 106 relative to their positions in the closed position is greater than the rotation angle of their positions in the open position relative to their positions in the closed position.

[0059] Figure 7 The valve 100 is shown in the open position. The open position may correspond to an opening angle 802, which is less than the assembly angle 702 and is configured to maximize the flow rate of fluid through the valve 100 (e.g., at 90 degrees to the direction parallel to the valve body 112).

[0060] To transition from the assembled position to the open position, the valve disc 114, valve stem 106, and end stop plate 108 can all rotate (the three are rotationally coupled around the rotation axis 110). In this case, as long as the end stop plate 108 remains within the recess 206 during rotation, the end stop plate translation portion 304 can move below the lug 200. Since the end stop plate translation portion 304 is located below the lug 200, an anti-disengagement function is achieved in the open position.

[0061] Figure 8The valve 100 is shown in the closed position. The closed position can correspond to the following configuration: the valve disc 114 (covered by the valve body 112) abuts against and / or presses against a gasket within the valve port 102 (also covered by the valve body 112). Therefore, the valve disc 114 may not be parallel to the valve body 112 (e.g., it may be tilted a few degrees relative to the valve body 112). Accordingly, the valve 100 can be configured such that the opening angle from the closed position to the open position is less than 90 degrees.

[0062] In the closed position, the end stop plate translation portion 304 remains below the lug 200 (e.g., within the undercut 204 obscured by the lug 200). It should be noted that the end stop plate translation portion 304 remains below the lug 200 throughout the entire operating angle of the valve (e.g., at any position between the open and closed positions). Therefore, the end stop plate 108, and consequently the valve stem 106, is prevented from translating outside the valve 100 (e.g., during valve stem failure).

[0063] Furthermore, in the closed position, the rotating surface 310 of the end stop plate contacts the lug 200. Therefore, in the illustrated example, the valve disc 114 cannot rotate further clockwise. Accordingly, the end stop plate 108 and the actuator flange 104 achieve hard rotational stop for the valve 100 without the need for additional components.

[0064] Alternative implementation methods Figure 9 An assembly structure of a valve 100 using an end stop 108 and actuator flange 104 is shown. Components / features not specifically mentioned may be similar to those described in other embodiments herein. In an alternative embodiment, the end stop 108 includes a notch 308, an end stop translation portion 304, and an end stop rotation surface 310; however, their configurations differ. For example, the end stop rotation surface 310 is located at the end of the end stop translation portion 304. Similarly, the actuator flange 104 includes a lug 200 and an undercut 204; however, their configurations differ.

[0065] For assembly of valve 100, cutout 308 allows end stop plate 108 to translate downward along rotation axis 110, over lug 200, and into recess 206. Although end stop plate 108 shown in the figure has multiple thicknesses / heights, it should be noted that in this embodiment, end stop plate 108 can be formed as a flat plate with a single thickness.

[0066] Furthermore, in this embodiment, the actuator flange 104 has an actuator flange rotating portion 900 extending between the lug 200 and the concave surface 208. In other words, the undercut 204 does not extend entirely beneath the lug 200. The undercut 204 can be formed by machining the solid portion of the lug 200 extending to the concave surface 208. Other manufacturing methods can also be used to achieve a similar structure.

[0067] Figure 10 Showing with Figure 9 The valve 100 of the end stop plate 108 and actuator flange 104 shown is in the closed position. In the closed position, the rotating surface 310 of the end stop plate contacts the rotating part 900 of the actuator flange. Accordingly, hard rotation stop can be achieved.

[0068] Similar to the previously described embodiment, the end stop plate translation portion 304 remains below the lug 200 throughout the entire process of rotating at least 90 degrees from the closed position (e.g., to the open position). This provides an anti-disengagement function for the valve's operating angle.

[0069] It should be noted that in this embodiment, the angular range of motion of the end stop plate translation portion 304 can be significantly reduced. For example, only one lug 200 or the angular range of motion of the end stop plate translation portion 304 needs to be greater than 90 degrees. As long as a portion of the end stop plate translation portion 304 is always located below a portion of the lug 200 throughout the entire working angle range of the valve 100, the anti-disengagement function can be achieved within the working angle range of the valve 100.

[0070] Furthermore, in some embodiments, the actuator flange rotation portion 900 can be replaced by other rotation stops. For example, if the actuator flange rotation portion 900 is not used, fasteners, pins, or other structures can be formed in the recess 206 to restrict the rotation of the end stop plate 108. Further, other rotation stops can be movably mounted to the actuator flange 104 to achieve adjustment of hard rotation stops.

[0071] Figure 11 An assembly structure of valve 100 using an end stop plate 108 and actuator flange 104 is shown. Actuator flange 104 does not include lugs 200 and undercuts 204. Instead, recess 206 may be a cylindrical drilled hole formed or machined in actuator flange 104.

[0072] The end stop 108 does not include the cutout 308, but includes an end stop translation portion 304 and an end stop rotation surface 310; however, their configurations differ. For example, the end stop 108 may have a circular perimeter, and a through-type curved slot 1102 may be formed in the end stop translation portion 304. The curved slot 1102 may be configured to allow the end stop 108 to rotate about one or more fasteners 1100. In some embodiments, the end stop translation portion 304 may not be recessed. In other words, the end stop 108 may be a flat plate in which the through-type curved slot is formed. In such cases, the end stop translation surface 306 may be contained within / identical to the top surface of the end stop 108.

[0073] One end of the arcuate groove 1102 or the wall surface of the end forming the end stop plate translation portion 304 can form an end stop plate rotation surface 310. The end stop plate rotation surface 310 can be configured to mate with the head of the fastener 1100 (e.g., if the end stop plate rotation surface 310 is not in the groove) and / or mate with the body of the fastener 1100 (e.g., if the end stop plate rotation surface is located within the arcuate groove 1102).

[0074] To assemble the valve 100, the end stop plate 108 is moved downward along the rotation axis 110, past the engagement portion 404, and into the recess 206. However, unlike the case described above, the valve stem 106 can be arbitrarily configured between the open and closed positions (even slightly beyond the open position). Furthermore, the engagement portion 404 is a circular shaft with its two flat surfaces 406 spaced 180 degrees apart (e.g., instead of four flat surfaces 406 spaced 90 degrees apart). Accordingly, the engagement holes 300 on the end stop plate 108 are formed in different shapes to accommodate different configurations of the engagement portion 404.

[0075] Fastener 1100 may be disposed through arcuate groove 1102 and attached to concave surface 208 (e.g., via fastener mounting portion 1104 formed within concave surface 208). Fastener mounting portion 1104 may have a defined depth to ensure that fastener 1100 does not clamp end stop plate 108. In some embodiments, fastener 1100 may have shoulders to ensure that end stop plate 108 can rotate freely beneath them.

[0076] In this embodiment, the end stop plate 108 can be configured to have two sets of end stop plate rotation surfaces 310. For example, one end of the arcuate groove 1102 can correspond to a hard stop for the closed position, while the other end of the arcuate groove 1102 can correspond to a hard stop for the open position. In this embodiment, there may be no assembly position, because the valve 100 can be assembled at any position between (or even beyond) the open and closed positions.

[0077] Figure 12 Showing with Figure 11 The valve 100 of the end stop plate 108 and actuator flange 104 shown is in the closed position. The rotating surface 310 of the end stop plate is in contact with the fastener 1100. Accordingly, hard rotation stop can be achieved.

[0078] Furthermore, the translational surface 306 of the end stop plate is located below the head of the fastener 1100 fastened to the actuator flange 104. This enables an anti-disengagement function.

[0079] Figure 13 An example of a combined valve stem / end stop 1300 using the features of end stop 108 and valve stem 106 is shown. The combined valve stem / end stop 1300 is similar to placing the end stop 108 on the engagement portion 404 of the valve stem 106. Although the illustrated example shows the features of a single embodiment of the end stop 108 and valve stem 106, the features of any of the above-described embodiments of the end stop 108 and / or valve stem 106 can be used in the combined valve stem / end stop 1300.

[0080] However, the combined valve stem / end stop 1300 is not composed of two parts, but rather a single part or structure. The combined valve stem / end stop 1300 includes a valve stem portion 1302, an end stop portion 1304, and an actuator engagement portion 1306. The valve stem portion 1302 and the actuator engagement portion 1306 may include features similar to those of the valve stem 106. The end stop portion 1304 may include features similar to those of the end stop 108. These features (e.g., translational portions / translation surfaces, rotational portions / rotational surfaces, cutouts) will not be described in detail here.

[0081] The combined valve stem / end stop 1300 can be formed as a single structure (e.g., cast, injection molded, printed, and / or machined), or it can be assembled from two combined structures (e.g., the end stop 1304 can be connected to the valve stem 1302 by press fitting, welding, and / or mechanical fastening). By using a single component, the design of the valve 100 can be further simplified.

[0082] Example Method Figure 14 A method 1400 for assembling valve 100 is shown. The steps of method 1400 may be rearranged, separated, or combined without departing from the scope of this application. Furthermore, it should be noted that other methods for assembling valve 100 may be used without departing from the scope of this application.

[0083] At 1402, the valve stem is positioned relative to the actuator flange in the assembly position. For example, the valve stem 106 can be positioned relative to the actuator flange 104 / valve body 112. Figure 5 and Figure 9 The assembly position is shown. The arrangement of the valve stem 106 can correspond to the position from... Figure 8 The relative rotation of the closed position around the rotation axis 110, as shown, has an angle greater than that from... Figure 7 The rotation angle of the indicated opening position.

[0084] At 1404, the end stop is arranged such that one or more cutouts on the end stop align with corresponding lugs on the actuator flange. For example, end stop 108 may be arranged such that cutout 308 aligns with lug 200.

[0085] At 1406, the end stop plate aligns with the valve stem engagement and translates along the rotation axis into the recess of the actuator flange, such that one or more end stop plate translation portions translate over the lug. For example, end stop plate 108 may align with engagement 404 and may translate along the rotation axis 110 into recess 206, such that end stop plate translation portion 304 translates over lug 200.

[0086] At 1408, the end stop plate and valve stem are rotated such that the translational portion of the end stop plate is positioned below the lug. For example, the end stop plate 108 and valve stem 106 can be rotated to the open position, the closed position, or any position in between. In any of these positions, the translational portion 304 of the end stop plate is positioned within the undercut 204 (e.g., below the lug 200). The valve 100 can be rotated to the closed position to achieve a compact design, facilitating transport, transfer, and / or installation.

[0087] Example Example 1: A valve includes: an actuator flange forming a recess; a valve stem disposed through the recess of the actuator flange; and an end stop plate: disposed within the recess of the actuator flange; coupled to the valve stem such that rotation of the valve stem and the end stop plate about a rotation axis of the valve is mutually coupled; and configured to abut against the actuator flange such that: rotation of the end stop plate about the rotation axis is restricted in at least one direction; and during at least a portion of the travel of rotation of the end stop plate about the rotation axis, the end stop plate is prevented from translating out of the recess.

[0088] Example 2: The valve according to Example 1, wherein the actuator flange includes one or more lugs configured to abut against the end stop to prevent the end stop from translating out of the recess.

[0089] Example 3: The valve according to Example 2, wherein the actuator flange includes one or more actuator flange swivel portions configured to abut the end stop plate to restrict rotation of the end stop plate in at least one direction.

[0090] Example 4: The valve according to Example 3, wherein the end stop plate is a flat plate with a single thickness.

[0091] Example 5: The valve according to Example 2, wherein the lug is configured to abut the end stop to restrict the rotation of the end stop in at least one direction.

[0092] Example 6: The valve according to Example 5, wherein the end stop plate includes: one or more rotating surfaces configured to abut the lug to restrict rotation of the end stop plate in at least one direction; and one or more end stop plate translational surfaces configured to abut the lug to prevent the end stop plate from translating outside the recess during a portion of the rotational travel.

[0093] Example 7: The valve according to Example 6, wherein the rotating surface of the end stop plate is orthogonal to the translational surface of the end stop plate.

[0094] Example 8: The valve according to Example 6 or 7, wherein the translational surface of the end stop plate has an angular range of motion of at least 90 degrees relative to the axis of rotation.

[0095] Example 9: A valve according to Example 6, 7 or 8, wherein the actuator flange forms one or more undercuts below the lug, the one or more undercuts being configured to accommodate one or more end stop translation portions including the end stop translation surface.

[0096] Example 10: A valve according to any of the preceding examples, wherein the end stop includes one or more slits configured to allow the end stop to translate at least partially over the lug when the end stop is not within a portion of the travel of the rotation.

[0097] Example 11: A valve according to any of the foregoing examples, wherein the valve can be configured to be in: a closed position; an open position; and an assembled position, wherein the valve stem and the end stop plate are rotated by a greater angle relative to their positions when in the closed position than they are rotated by a greater angle relative to their positions when in the open position.

[0098] Example 12: The valve according to Example 11, wherein: the end stop plate and the actuator flange are configured to prevent the end stop plate from translating outside the recess of the actuator flange when it is in the closed position and in the open position; and the end stop plate and the actuator flange are configured to allow the end stop plate to translate outside the recess of the actuator flange when it is in the assembled position.

[0099] Example 13: A valve according to Example 11 or 12, wherein the valve stem and the end stop plate rotate at an angle of at least 100 degrees relative to their positions when in the assembled position and when in the closed position.

[0100] Example 14: A valve according to any of the preceding examples, wherein: the valve includes a valve body forming a valve port; the valve body includes the actuator flange; and the valve stem extends through the valve port.

[0101] Example 15: A valve according to any of the preceding examples, wherein the valve stem includes a joint configured to engage with an engagement hole in the end stop plate and the actuator of the valve.

[0102] Example 16: The valve according to Example 15, wherein the engagement has one or more stem translation surfaces, the one or more stem translation surfaces being configured to transfer forces acting on the stem along the axis of rotation to the end stop.

[0103] Example 17: A valve according to any of the preceding examples, wherein: the valve includes a valve body forming a valve port; the actuator flange includes an actuator flange top surface; a recess of the actuator flange extends from the actuator flange top surface toward the valve port; a valve stem bore communicates with the recess and the valve port; and the valve stem is disposed through the valve stem bore.

[0104] Example 18: A valve according to any of the preceding examples, wherein the valve stem and the end stop are formed as a single structure.

[0105] Example 19: A method of assembling a valve, the method comprising the steps of: arranging a valve stem relative to an actuator flange in an assembly position; arranging an end stop plate such that one or more cutouts on the end stop plate are aligned with corresponding lugs of the actuator flange; aligning the end stop plate with a joint of the valve stem, and translating the end stop plate along the rotation axis of the valve into a recess in the actuator flange such that one or more translational portions of the end stop plate translate over the lugs; and rotating the end stop plate and the valve stem such that the translational portions of the end stop plate are positioned below the lugs.

[0106] Example 20: A valve includes: an actuator flange forming a recess; a valve stem disposed through the recess of the actuator flange; and an end stop plate: disposed within the recess of the actuator flange; coupled to the valve stem such that rotation of the valve stem and the end stop plate about a rotation axis of the valve is mutually coupled; and configured to abut against a fastener disposed within the recess such that: the end stop plate is prevented from translating out of the recess; the end stop plate is rotatable about the rotation axis; and rotation of the end stop plate about the rotation axis is restricted in at least one direction.

[0107] Example 21: The valve according to Example 20, wherein the end stop plate is a flat plate with a single thickness.

[0108] Example 22: A valve according to Example 20 or 21, wherein the end stop includes: one or more rotating surfaces configured to abut the fastener to restrict rotation of the end stop in at least one direction; and one or more translational surfaces configured to abut the fastener to prevent the end stop from translating outside the recess.

[0109] Example 23: The valve according to Example 22, wherein the rotational surface of the end stop plate is orthogonal to the translational surface of the end stop plate.

[0110] Example 24: A valve according to Example 22 or 23, wherein the translational surface of the end stop plate has an angular range of motion of at least 90 degrees relative to the axis of rotation.

[0111] Example 25: A valve according to any of Examples 20-24, wherein: the valve includes a valve body forming a valve port; the valve body includes the actuator flange; and the valve stem extends through the valve port.

[0112] Example 26: A valve according to any of Examples 20-25, wherein the valve stem includes a joint configured to engage with an engagement hole in the end stop and the actuator of the valve.

[0113] Example 27: The valve according to Example 26, wherein the engagement has one or more stem translation surfaces configured to transfer forces acting on the stem along the axis of rotation to the end stop.

[0114] Example 28: A valve according to any of Examples 20-27, wherein: the valve includes a valve body forming a valve port; the actuator flange includes an actuator flange top surface; a recess of the actuator flange extends from the actuator flange top surface toward the valve port; a valve stem bore communicates with the recess and the valve port; and the valve stem is disposed through the valve stem bore.

[0115] Example 29: A valve according to any of Examples 20-28, wherein the valve stem and the end stop are formed as a single structure.

[0116] Example 30: An end stop plate is configured to: be disposed within a recess of an actuator flange of a valve body; be coupled to the valve stem such that the rotation of the valve stem and the end stop plate about the rotation axis of the valve are mutually coupled; and be abutted to the actuator flange such that: the rotation of the end stop plate about the rotation axis is restricted in at least one direction; and during at least a portion of the travel of the end stop plate rotating about the rotation axis, the end stop plate is prevented from translating out of the recess.

[0117] Example 31: The end stop plate according to Example 30, wherein the end stop plate is a flat plate having a single thickness.

[0118] Example 32: An end stop plate according to Example 30 or 31, wherein the end stop plate includes: one or more rotating surfaces configured to abut lugs of the actuator flange to limit rotation of the end stop plate in at least one direction; and one or more translational surfaces configured to abut lugs to prevent the end stop plate from translating outside the recess during a portion of the rotational travel.

[0119] Example 33: The end stop plate according to Example 32, wherein the rotational surface of the end stop plate is orthogonal to the translational surface of the end stop plate.

[0120] Example 34: An end stop plate according to Example 32 or 33, wherein the translational surface of the end stop plate has an angular range of motion of at least 90 degrees relative to the axis of rotation.

[0121] Example 35: An end stop according to any of Examples 30-34, wherein the end stop includes one or more cutouts configured to allow the end stop to translate at least partially over the lugs of the actuator flange when the end stop is not within a portion of the travel of the rotation.

[0122] Example 36: An end stop plate according to any of Examples 30-34, wherein the end stop plate includes one or more arcuate grooves formed therein, the arcuate grooves being configured to receive corresponding fasteners fastened to the actuator flange.

[0123] in conclusion The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” also include the plural forms. It will be further understood that words such as “includes,” “comprises,” and / or “comprising,” when used in this specification, are intended to clearly describe the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Furthermore, words such as “upper,” “lower,” “below,” “above,” “below,” “left,” “right,” “front,” and “back” should be understood in conjunction with the foregoing description and illustrations so that the wearable device may have such orientation relative to or supported by the frame or various different elements as shown in the accompanying drawings.

[0124] The corresponding structures, materials, behaviors, and equivalents of all means or steps plus functional elements (if any) in the following claims are intended to cover any structure, material, or behavior combined with other claimed elements to perform a function, as specifically claimed. The description of this application is intended to be illustrative and descriptive, but is not exhaustive or limited to the disclosed forms. Numerous modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of this application. The various different embodiments have been chosen and described to best illustrate the principles of this application and its practical application, enabling those skilled in the art to understand the application and to make various modifications to suit the specific intended use of the various embodiments.

Claims

1. A valve, comprising: Actuator flange, forming a recess; The valve stem is disposed through a recess in the actuator flange; as well as End stop plate: It is disposed within the recess of the actuator flange; Coupled to the valve stem, such that the rotation of the valve stem and the end stop plate about the rotation axis of the valve are mutually coupled; and Configured to dock with the actuator flange such that: The rotation of the end stop plate about the axis of rotation is restricted in at least one direction; and During at least a portion of the travel of the end stop plate as it rotates about the axis of rotation, the end stop plate is prevented from translating outside the recess.

2. The valve according to claim 1, wherein, The actuator flange includes one or more lugs configured to abut against the end stop to prevent the end stop from translating out of the recess.

3. The valve according to claim 2, wherein, The actuator flange includes one or more actuator flange rotatable portions configured to abut with the end stop plate to restrict rotation of the end stop plate in at least one direction.

4. The valve according to claim 3, wherein, The end stop plate is a flat plate with a single thickness.

5. The valve according to claim 2, wherein, The lug is configured to abut against the end stop to restrict rotation of the end stop in at least one direction.

6. The valve according to claim 5, wherein, The end stop plate includes: One or more rotating surfaces, said one or more rotating surfaces being configured to abut the lug to limit the rotation of the end stop in said at least one direction; and One or more end stop plate translation surfaces are configured to abut the lug to prevent the end stop plate from translating outside the recess during a portion of the rotational stroke.

7. The valve according to claim 6, wherein, The rotating surface of the end stop plate is orthogonal to the translational surface of the end stop plate.

8. The valve according to claim 6, wherein, The translational surface of the end stop plate has an angular range of motion of at least 90 degrees relative to the axis of rotation.

9. The valve according to claim 6, wherein, The actuator flange forms one or more undercuts below the lug, the one or more undercuts being configured to accommodate one or more end stop translation portions including the end stop translation surface.

10. The valve according to claim 2, wherein, The end stop includes one or more slits configured to allow the end stop to translate at least partially over the lug when the end stop is not within a portion of the travel of the rotation.

11. The valve according to claim 1, wherein, The valve can be configured to: Close location; Opening location; and In the assembly position, when the device is in the position, the rotation angle of the valve stem and the end stop plate relative to their positions in the closed position is greater than the rotation angle of their positions in the open position relative to their positions in the closed position.

12. The valve according to claim 11, wherein: The end stop plate and the actuator flange are configured to prevent the end stop plate from translating outside the recess of the actuator flange when in the closed position and the open position; and The end stop plate and the actuator flange are configured such that the end stop plate can be translated outside the recess of the actuator flange when in the assembled position.

13. The valve according to claim 11, wherein, The valve stem and the end stop plate, when in the assembled position, are rotated by an angle of at least 100 degrees relative to their positions when in the closed position.

14. The valve according to claim 1, wherein: The valve includes a valve body forming a valve port; The valve body includes the actuator flange; and The valve stem extends through the valve port.

15. The valve according to claim 1, wherein, The valve stem includes a joint configured to mate with a mating hole in the end stop plate and the actuator of the valve.

16. The valve according to claim 15, wherein, The joint has one or more valve stem translation surfaces, which are configured to transfer forces acting on the valve stem along the axis of rotation to the end stop plate.

17. The valve according to claim 1, wherein: The valve includes a valve body forming a valve port; The actuator flange includes an actuator flange top surface; The recess of the actuator flange extends from the top surface of the actuator flange toward the valve port; The valve stem hole communicates with the recess and the valve port; and The valve stem is disposed through the valve stem hole.

18. The valve according to claim 1, wherein, The valve stem and the end stop plate are formed as a single structure.

19. A method for assembling a valve, the method comprising the following steps: Position the valve stem relative to the actuator flange in the assembly position; An end stop plate is arranged such that one or more cuts on the end stop plate are aligned with the corresponding lugs of the actuator flange; Align the end stop plate with the joint of the valve stem and translate the end stop plate along the rotation axis of the valve into the recess of the actuator flange, such that one or more end stop plate translation portions of the end stop plate translate over the lug. as well as Rotate the end stop plate and valve stem so that the translational portion of the end stop plate is positioned below the lug.

20. A valve, comprising: Actuator flange, forming a recess; The valve stem is disposed through a recess in the actuator flange; as well as End stop plate: It is disposed within the recess of the actuator flange; Coupled to the valve stem, such that the rotation of the valve stem and the end stop plate about the rotation axis of the valve are mutually coupled; and Configured to mate with a fastener disposed within the recess, such that: The end stop plate is prevented from translating outside the recess; The end stop plate is rotatable about the rotation axis; and The rotation of the end stop plate about the axis of rotation is restricted in at least one direction.

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