阅读说明：本技术 键结构 (Key structure ) 是由 路易斯·伊曼纽尔·马塔隆 理查德·科瓦奇 迈克尔·大卫·约德 于 2019-02-20 设计创作，主要内容包括：描述了一种用于隔膜阀的阀盖组件的技术。阀盖组件可包括手轮。阀盖组件可包括壳体。壳体可包括壳体基部。壳体基部可包括顶部、底部和四个侧部。本体组件的本体立柱的本体立柱头部可与壳体基部的顶部的边缘接触。阀盖组件可以被构造成固定到本体组件,其中本体立柱头部至少部分地露出。(Techniques for a bonnet assembly for a diaphragm valve are described. The valve cover assembly may include a handwheel. The bonnet assembly may include a housing. The housing may include a housing base. The housing base may include a top, a bottom, and four sides. The body post head of the body post of the body assembly may contact an edge of the top of the housing base. The valve cover assembly may be configured to be secured to the body assembly with the body post head at least partially exposed.)

1. A valve cover assembly for a diaphragm valve, the valve cover assembly comprising:

a hand wheel;

a housing, wherein the housing comprises a housing base, and the housing base comprises a top, a bottom, and four sides;

wherein a body post head of a body post of the body assembly is in contact with an edge of the top portion of the housing base, and the valve cover assembly is configured to be secured to the body assembly with the body post head at least partially exposed.

2. The valve cover assembly according to claim 1, wherein the housing base further comprises a key hook protruding along a surface of each of the four sides of the housing base and curving toward an adjacent side of the housing base, the valve cover assembly further comprising:

a key hole defined by a wall of the housing base and a wall of the key hook of the bonnet assembly, wherein the wall of the housing base and the wall of the key hook define a first slot having a first diameter, a second slot having a second diameter, and define an opening for each key hole, the second diameter being less than the first diameter, and the wall of the housing base and the wall of the key hook define a post head recess on a top of each key hook and respective adjacent sides of the housing base, and the body post head is in contact with the post head recess.

3. The valve cover assembly of claim 2, wherein the body post further comprises a body post neck, the body post head having a third diameter, the body post neck having a fourth diameter, the third diameter being greater than the fourth diameter, the body post passing vertically through a portion of the key hole, the body post neck contacting the key hook, and the body post head contacting the post head recess.

4. The valve cover assembly of claim 3 wherein the post head recess has a circular profile with a fifth diameter and the fifth diameter is greater than the third diameter of the body post head.

5. The valve cover assembly according to claim 3, wherein the second diameter of the second groove is greater than the fourth diameter of the body post neck.

6. The valve cover assembly according to claim 1, wherein a diaphragm assembly is attached to the valve cover assembly.

7. The valve cover assembly according to claim 2, wherein the plurality of body posts are configured in a rectangular pattern on the body assembly, wherein an angle between sides of the rectangular pattern and sides of the body assembly is 0 degrees.

8. The valve cover assembly according to claim 1, wherein the plurality of body posts are configured in a rectangular pattern on the body assembly, wherein an angle between sides of the rectangular pattern and sides of the body assembly is 0 degrees.

9. A connection system for a diaphragm valve, the system comprising:

a valve cover assembly, wherein the valve cover assembly comprises a handwheel and a housing, wherein the housing comprises a housing base, and the housing base comprises a top, a bottom, and four sides; and

a body assembly, wherein the body assembly comprises a plurality of body posts, each body post comprises a body post head in contact with an edge of the top of the housing base, and the valve cover assembly is secured to the body assembly with the body post heads at least partially exposed.

10. The system of claim 9, further comprising a diaphragm assembly, wherein the diaphragm assembly is attached to the bonnet assembly.

11. The system of claim 9, wherein the housing base further comprises a key hook projecting along a surface of each of the four sides of the housing base and curving toward an adjacent side of the housing base, the housing base wall and the key hook wall defining a key hole, wherein the housing base wall and the key hook wall define a first slot having a first diameter, a second slot having a second diameter, and define an opening for each key hole, the second diameter being smaller than the first diameter, and the housing base wall and the key hook wall define a post head recess on a top of each key hook and the respective adjacent side of the housing base, and the body post head is in contact with the post head recess.

12. The system of claim 11, wherein the body stud further comprises a body stud neck, the body stud head having a third diameter, the body stud neck having a fourth diameter, the third diameter being greater than the fourth diameter, the body stud passing vertically through a portion of the keyhole, the body stud neck contacting the keyhook, and the body stud head contacting the stud head notch.

13. The system of claim 12, wherein the stud head recess has a circular profile with a fifth diameter, and the fifth diameter is greater than the third diameter of the body stud head.

14. The system of claim 12, wherein the second diameter of the second groove is greater than the fourth diameter of the body post neck.

15. The system of claim 12, wherein the body stand is configured in a rectangular pattern on the body assembly, wherein an angle between sides of the rectangular pattern and sides of the body assembly is 0 degrees.

16. A method of securing a bonnet assembly to a body assembly, the method comprising:

contacting a body upright head of a body upright of a body assembly with an edge of a top of a housing base of a valve cover assembly, wherein the valve cover assembly comprises a hand wheel; and

rotating the handwheel of the valve cover assembly, wherein rotation of the handwheel applies a force from the valve cover assembly to the body assembly to secure the body post head to the rim of the top of the housing base and to secure the valve cover assembly to the body assembly, wherein the body post head is at least partially exposed.

17. The method of claim 16, wherein the housing base further comprises a key hook projecting along a surface of each of the four sides of the housing base and curving toward the adjacent side of the housing base, the walls of the housing base and the key hook defining a key hole, wherein the walls of the housing base and the key hook define a first slot having a first diameter, a second slot having a second diameter that is less than the first diameter, and define an opening for each key hole, and the walls of the housing base and the key hook define a post head recess on a top of each of the key hooks and the respective adjacent side of the housing base, the method further comprising, prior to rotating the handwheel:

passing the body post through a portion of the keyhole; and

rotating the valve cover assembly to contact the body column neck of the body column with the key hook and to contact the body column head with the column head recess.

18. The method of claim 16, further comprising attaching a diaphragm assembly to the bonnet assembly prior to passing the body post of the body assembly through a portion of the keyhole.

19. The method of claim 17, wherein the plurality of body posts are configured in a rectangular pattern on the body assembly, the angle between the sides of the rectangular pattern and the sides of the body assembly being 0 degrees.

20. The method of claim 17, wherein the stud head recess has a circular profile with a third diameter, and the third diameter is greater than a fourth diameter of the body stud head.

Background

Unless otherwise indicated herein, the materials described in this section are not prior art to the claims in this application and are not admitted to be prior art by inclusion in this section.

The diaphragm valve may include three main subassemblies: a bonnet assembly (bonnet assembly), a body assembly, and a diaphragm assembly. The bonnet and body assemblies may be held together by a series of bolts around the periphery of the assemblies. The diaphragm assembly may be located between the bonnet assembly and the body assembly. The bonnet assembly and the body assembly may be separated to inspect and/or replace the diaphragm assembly.

Disclosure of Invention

One embodiment of the present invention is a valve cover assembly for a diaphragm valve. The valve cover assembly may include a handwheel. The bonnet assembly may include a housing. The housing may include a housing base. The housing base may include a top, a bottom, and four sides. The body post head of the body post of the body assembly may contact an edge of the top of the housing base. The valve cover assembly may be configured to be secured to the body assembly with the body post head at least partially exposed.

Another embodiment of the present invention includes a connection system for a diaphragm valve. The system may include a valve cover assembly. The valve cover assembly may include a handwheel and a housing. The housing may include a housing base. The housing base may include a top, a bottom, and four sides. The system may include a body assembly. The body assembly may include a plurality of body posts. Each body upright may include a body upright head. The body post head may contact an edge of the top of the housing base. The valve cover assembly may be secured to the body assembly with the body post head at least partially exposed.

Another embodiment of the present invention is a method of securing a valve cover assembly to a body assembly. The method may include contacting a body post head of a body post of the body assembly with an edge of a top of a housing base of the bonnet assembly. The valve cover assembly may include a handwheel. The method may include rotating a handwheel of the valve cover assembly. Rotation of the handwheel may apply a force to the body assembly from the valve cover assembly to secure the body stud head to the edge of the top of the housing base. Rotation of the handwheel may secure the valve cover assembly to the body assembly with the body post head at least partially exposed.

The above summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

Drawings

The foregoing and other features of the present disclosure will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. Understanding that these drawings depict only several embodiments in accordance with the disclosure and are, therefore, not to be considered limiting of its scope, the disclosure will be described with additional specificity and detail through use of the accompanying drawings in which:

FIG. 1 is a side perspective view showing a diaphragm valve prior to assembly, the diaphragm valve including a valve cover assembly, a diaphragm assembly, and a body assembly;

FIG. 2 is a bottom perspective view showing the alignment of the body assembly and the bonnet assembly of the diaphragm valve;

FIG. 3 is a top perspective view showing attachment of a valve cover assembly to a body assembly of a diaphragm valve;

FIG. 4 is a top perspective view showing the valve cover assembly of the diaphragm valve secured to the body assembly;

FIG. 5A is a side perspective view showing the valve cover assembly of a diaphragm valve secured to a body assembly;

FIG. 5B is a top perspective view showing the valve cover assembly of the diaphragm valve secured to the body assembly; and

fig. 6 shows a flow diagram of an example process for securing a bonnet assembly to a body assembly of a diaphragm valve, all arranged in accordance with at least some embodiments described herein.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals generally identify like components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are explicitly contemplated herein.

Figure 1 is a side perspective view showing a diaphragm valve prior to assembly, the diaphragm valve including a valve cover assembly, a diaphragm assembly, and a body assembly, the assemblies arranged in accordance with at least some embodiments described herein. The diaphragm valve 100 can include a bonnet assembly 10, a diaphragm assembly 60, and a body assembly 40. The bonnet assembly 10 may include a housing 12, a handwheel 16, a pressure ring 24, a safety lock handwheel 26, and a safety lock 28. The housing 12 may further define a key hole 14.

The diaphragm assembly 60 may include a diaphragm 50 and a back pad 55. The diaphragm 50 may include a diaphragm post 52. The diaphragm post 52 may be embedded in a central boss of the diaphragm 50 and may be configured to couple with an open orifice of the bonnet assembly 10. The diaphragm post 52 may be a threaded post, a non-threaded cylindrical post with a latch, or a metal post. The back pad 55 may have a disc shape and the material of the back pad 55 may define a small aperture through the center of the back pad 55. The diaphragm post 52 may be inserted through a small orifice defined by the back pad 55 and into an open orifice of the bonnet assembly 10. When the diaphragm is attached to the bonnet assembly 10, the back pad 55 may be sandwiched between the diaphragm 50 and the pressure ring 24 of the bonnet housing 12.

The body assembly 40 may define a fluid passage 42. The body assembly 40 may include a weir (weir) 44. A weir 44 may be located within the fluid passageway 42 and may cooperate with the diaphragm assembly 60 to control the flow of fluid through the fluid passageway 42. Body assembly 40 may include a body post 46. The body assembly 40 may include four body posts 46 on a first side of the body assembly 40. A body upright 46 may be attached at each of the four top corners of the body assembly 40. These body posts 46 may be configured in a square or rectangular pattern on the top side of the body assembly 40 when viewed from above. These body posts 46 may be such that the angle between the square or rectangular pattern of sides of the body posts 46 and the sides of the body assembly 10 is 0 degrees. Body posts 46 may be configured in an offset square or rectangular pattern on the top side of body assembly 40 when viewed from above. These body posts 46 may be such that the angle between the square or rectangular pattern of sides of the body posts 46 and the sides of the body assembly 10 is non-zero degrees. The body posts 46 may be aligned with the key holes 14 defined by the housing 12 of the bonnet assembly 10. As described in more detail below, the keyhole 14 and the bonnet assembly 10 may be positioned about the body post 46 and rotated about the main axis of the diaphragm valve 100 to attach the bonnet assembly 10 to the body 40.

Figure 2 is a bottom perspective view illustrating alignment of a body assembly of a diaphragm valve with a bonnet assembly, the bonnet assembly and the body assembly arranged in accordance with at least some embodiments presented herein. For the sake of brevity, those components of fig. 2 that are identically labeled to components of fig. 1 will not be described again. The system 200 may include a bonnet assembly 10, a diaphragm assembly 60, and a body assembly 40.

The body post 46 may comprise hardened stainless steel to prevent wear. Each body upright 46 can include a body upright head 210, a body upright neck 220, a body upright base 230, and a body upright fastener 232. The body post head 210 may be cylindrical with a diameter 215. The body post neck may be cylindrical with a diameter 225 and a height 240. Body upright base 230 may be cylindrical with a diameter 215. Body stud fastener 232 may have external threads and may be threaded into body assembly 40 to attach body stud 46 to body assembly 40 or may be threaded through body assembly 40 to a nut opposite body assembly 40 to attach the body stud to body assembly 40. The first rounded end of the body stud head 210 may be attached to the first rounded end of the body stud neck 220. The second rounded end of body stud neck 220 may be attached to the first rounded end of body stud base 230. The second rounded end of body upright base 230 may be attached to body 40. Diameter 215 may be greater than diameter 225, and body post head 210 may extend axially outward from body post 46 and body post neck 220.

The housing 12 may comprise stainless steel. The housing 12 may include a housing base 245. The housing base 245 may include a top, a bottom, and four sides. The housing base 245 may include a key hook 250. Housing base 245 and key hooks 250 may comprise stainless steel. The key hook 250 may protrude along a surface of each of the four sides of the housing base 245. Each key hook 250 may be bent toward an adjacent side of the housing base 245. The walls of the key hooks 250 and the walls of the housing base 245 may define the key holes 14. The walls of the housing base 245 may define a groove 255 for each key hole 14. The walls of the key hooks 250 may define a slot 260 for each key hole 14. The walls of the housing base 245 and the walls of the key hooks 250 may define an opening 265 for each key hole 14. The slot 255 may be defined by the housing base 245 as a portion of a cylindrical opening having a diameter 275 through the housing base 245. The slot 260 may be defined by the key hook 250 as a cylindrical opening having a diameter 270 through the key hook 250, and the slot 260 communicates with the slot 255. The grooves 255 and 260 may overlap. Diameter 270 may be greater than diameter 225 of body stud neck 220 and body stud neck 220 may fit within groove 255. Diameter 275 may be greater than diameter 215 of body stud head 210 and body stud head 210 may fit within groove 255. Diameter 270 may be less than diameter 215 of body post head 210 and body post head 210 may not fit within slot 260. Opening 265 may be defined by a wall of housing base 245 and a wall of key hook 250 to allow body stud neck 220 to enter into slot 255 and/or slot 260. The walls of the housing base 245 and the walls of the key hooks 250 may further define stud head recesses (stud head wells) 280. The post head recess 280 may have a substantially circular profile and may be defined by the walls of each key hook 250 and the walls of the housing base 245 as a cylindrical recess in the top side of each key hook 250 and the adjacent side of the housing base 245. Each post head recess 280 may have a diameter 285. The diameter 285 may be greater than the diameter 215 of the body stud head 210 so that the body stud head 210 may fit within the stud head recess 280. As shown in fig. 2, the body posts 46 and keyholes 14 may be aligned to provide the bonnet assembly 10 on the body assembly 40.

Fig. 3 is a top perspective view illustrating attachment of a valve cover assembly and a body assembly of a diaphragm valve, arranged in accordance with at least some embodiments presented herein. For the sake of brevity, those components of fig. 3 that are identically labeled to the components of fig. 1-2 will not be described again.

The body posts 46 of the body assembly 40 may be aligned with the keyholes 14 defined by the walls of the housing base 245 and the walls of the keyhooks 250. The valve cover assembly 10 may be in contact with the body assembly 40 such that the body post 46 passes vertically through the opening 265 and/or the slot 255 defined by the wall of the housing base 245 and the wall of the key hook 250. The body post head 210 may pass through the opening 265 and/or the slot 255. Body post neck 220 may engage groove 255. The diaphragm assembly 60 may be in contact with the body assembly 40. The body post head 210 may be located above the groove 255 and may not engage the groove 255. The valve cover assembly 12 may be rotated and the valve cover assembly 12 may be rotated such that the body post neck 220 is positioned within the slot 260 and in contact with the key hook 250. Key hook 250 may be in contact with and substantially surround body stud neck 220. After rotation of the bonnet assembly 12, the body post head 210 may be positioned within and in contact with the post head recess 280 defined by the key hook 250 and the housing base 245.

Fig. 4 is a top perspective view illustrating the securing of a valve cover assembly to a body assembly of a diaphragm valve, the valve cover assembly and body assembly arranged in accordance with at least some embodiments presented herein. For the sake of brevity, those components of fig. 4 that are identically labeled to the components of fig. 1-3 will not be described again.

As shown in fig. 4, the valve cover assembly 10 may be attached to the body assembly 40 with the body posts 46 of the body assembly 40 located within the key holes 14 defined by the housing 12. Body post neck 220 may be positioned in groove 260 and in contact with key hook 250. The body stud head 210 may be located within a stud head recess 280 defined by the key hook 250 and the housing base 245. The safety locking handwheel 26 may be rotated to apply a downward force on the diaphragm assembly 60 against the body assembly 40. The downward force applied to the body assembly 40 by the bonnet assembly and diaphragm assembly 60 may also apply an equal but opposite force upward on the bonnet assembly 10, including the housing base 245 and the key hooks 250. Housing base 245 and key hooks 250 can exert an upward force on body stud head 210 within stud head recess 280. The upward force applied by the housing base 245 and the key hooks 250 to the body stud head 210 within the stud head recess 280 may secure the body stud head 210 in the stud head recess 280 and may secure the valve cover assembly 10 to the body assembly 40. The body post head 210 may be at least partially exposed when the bonnet assembly 10 is secured to the body assembly 40.

Figure 5A is a side perspective view illustrating the securing of a valve cover assembly to a body assembly of a diaphragm valve, the valve cover assembly and body assembly arranged in accordance with at least some embodiments presented herein. Figure 5B is a top perspective view illustrating the securing of a bonnet assembly to a body assembly of a diaphragm valve, the bonnet assembly and the body assembly arranged in accordance with at least some embodiments presented herein. For the sake of brevity, those components of fig. 5A and 5B that are identically labeled to the components of fig. 1-4 will not be described again.

In another embodiment, the bonnet assembly 10 may include a housing base 545. The housing base 545 may not include the key hook 250. The body stud head 210 may be positioned in contact with the top edge 550 of the housing base 545. The diaphragm assembly 60 may be in contact with the body assembly 40. The safety locking handwheel 26 may be rotated to apply a downward force on the diaphragm assembly 60 against the body assembly 40. The downward force applied to the body assembly 40 by the bonnet assembly and diaphragm assembly 60 may also apply an equal and opposite force upward on the bonnet assembly 10, including the housing base 545. The top edge 550 of the housing base 545 may exert an upward force on the body post head 210. The upward force applied to the body stud head 210 by the top edge 550 of the housing base 245 may secure the body stud head 210 to the housing base 545 and may secure the bonnet assembly 10 to the body assembly 40. The body post head 210 may be at least partially exposed when the bonnet assembly 10 is secured to the body assembly 40.

The device according to the present disclosure may provide a tool-less quick-connect mechanism to secure the valve cover assembly to the body assembly. The device according to the present disclosure may provide a mechanism to secure the bonnet assembly to the body assembly to assemble the valve without the need for flange bolts and tightening the bolts. The device according to the present disclosure may provide a peripheral seal that is reliably retained without the need to inspect and retighten the flange bolts. The device according to the present disclosure may provide a valve cover assembly that may be secured to an existing body assembly using a body post head in a square, rectangular, or offset pattern. The device according to the present disclosure may provide a reliable diaphragm connection with a fast rotating attachment. The device according to the present disclosure may provide a Polytetrafluoroethylene (PTFE) diaphragm valve that is leak-free and reliable in operation. A device according to the present disclosure may eliminate possible entrapment areas between the diaphragm assembly and the body assembly. The device according to the present disclosure can be more easily manufactured since an open channel is cut instead of a blind keyway.

Fig. 6 illustrates a flow diagram of an example process for securing a bonnet assembly to a body assembly of a diaphragm valve, the bonnet assembly and the body assembly arranged in accordance with at least some embodiments presented herein. The process in fig. 6 may be implemented using, for example, system 200 discussed above. An example process may include one or more operations, actions, or functions as illustrated by one or more of block S2 and/or block S4. Although illustrated as discrete blocks, various blocks may be divided into additional blocks, combined into fewer blocks, or omitted, depending on the desired implementation.

The process may begin at block S2 with block S2 directed to "contacting a body post head of a body post of a body assembly with an edge of a top of a housing base of a valve cover assembly, wherein the valve cover assembly includes a handwheel". In block S2, the body post head of the body post of the body assembly may contact an edge of the top of the housing base of the bonnet assembly. The valve cover assembly may include a handwheel.

From block S2, the process may continue to block S4, block S4 being "a handwheel for rotating a valve cover assembly, wherein rotation of the handwheel applies a force from the valve cover assembly to the body assembly to secure the body stud head to an edge of the top of the housing base and to secure the valve cover assembly to the body assembly, wherein the body stud head is at least partially exposed. In block S4, a handwheel of the cover assembly may be rotated. Rotation of the handwheel of the bonnet assembly may apply a force from the bonnet assembly to the body assembly. The force applied to the body assembly by the handwheel from the valve cover assembly may secure the body stud head to the top edge of the housing base. The force applied to the body assembly by the handwheel from the valve cover assembly may secure the valve cover assembly to the body assembly with the body post head at least partially exposed.

While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.