CN222864150U - Butterfly valve with protection function - Google Patents
Butterfly valve with protection function Download PDFInfo
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- CN222864150U CN222864150U CN202422003945.0U CN202422003945U CN222864150U CN 222864150 U CN222864150 U CN 222864150U CN 202422003945 U CN202422003945 U CN 202422003945U CN 222864150 U CN222864150 U CN 222864150U
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- butterfly
- pressing plate
- packing
- valve body
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Abstract
The utility model provides a butterfly valve with a protection function, which relates to the technical field of related equipment of butterfly valves and comprises a valve body, a valve rod, a valve cap and a pressing plate assembly, wherein the valve rod is connected with the valve body; the valve cap is connected with the valve body, the pressing plate assembly comprises a packing pressing plate and an outer protecting piece connected with the packing pressing plate, the packing pressing plate is connected with the valve cap, and the outer protecting piece is arranged along the circumferential direction of the valve rod and used for blocking sand and dust from entering a gap between the valve rod and the valve body. The butterfly valve provided by the utility model relieves the technical problems of abrasion, clamping stagnation or failure of the valve rod of the butterfly valve caused by erosion of the valve rod of the butterfly valve due to sand and dust when being used in a special environment in the prior art.
Description
Technical Field
The utility model relates to the technical field of butterfly valve related equipment, in particular to a butterfly valve with a protection function.
Background
The butterfly valve is also called as a flap valve, and is a simple-structure regulating valve, and can be used for on-off control of low-pressure pipeline media, namely, the butterfly valve is characterized in that a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to achieve opening and closing, so that the butterfly valve is used as important fluid control equipment and is widely applied to various industrial fields.
In specific environments, such as areas with more sand and dust, including deserts, mines and the like, the valve rod part of the butterfly valve is easy to erode by the sand and dust, so that the valve rod is worn, stuck and even invalid, and the normal use of the valve is seriously influenced.
However, the existing butterfly valve rod is only filled with filler to prevent medium in the valve body flow channel from leaking outside, and when the valve is used in a severe environment, dust and the like cannot be prevented from entering the valve rod and the filler due to external factors, so that the service life of the valve is seriously influenced.
Disclosure of utility model
The utility model aims to provide a butterfly valve with a protection function, so as to solve the technical problems that in the prior art, when the butterfly valve is used in a special environment, a valve rod of the butterfly valve is corroded due to sand and dust, and the valve rod is worn, stuck or failed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
In a first aspect, the present utility model provides a butterfly valve with a protective function, comprising a valve body, a valve stem, a bonnet, and a pressure plate assembly, wherein the valve stem is connected with the valve body;
the valve cap is connected with the valve body;
The pressing plate assembly comprises a packing pressing plate and an outer protecting piece connected with the packing pressing plate, and the packing pressing plate is connected with the valve cap;
The outer guard is disposed along a circumference of the valve stem for blocking sand from entering a gap between the valve stem and the valve body.
Further, the pressing plate assembly further comprises a first sealing ring and a second sealing ring, wherein the first sealing ring is connected with the packing pressing plate, and the first sealing ring is tightly abutted with the valve rod;
The second sealing ring is connected with the packing pressing plate, and the second sealing ring is tightly abutted with the valve body.
Further, the pressure plate assembly further comprises a filler, and the filler is arranged between the valve rod and the valve body;
the packing pressing plate presses the packing toward the valve body.
Further, the platen assembly further includes a packing spacer connected with an end of the packing facing away from the packing platen.
Further, the butterfly valve with the protection function further comprises a lower gland, and the lower gland is connected with one end, far away from the valve cap, of the valve body through a gland bolt;
and a gland gasket is arranged between the lower gland and the valve body.
Further, the valve rod is provided with a first sliding bearing and a second sliding bearing, the first sliding bearing is connected with the inner wall of the valve body, and the first sliding bearing is abutted with the lower gland;
the second sliding bearing is respectively connected with the valve body and the pressing plate assembly.
Further, the butterfly valve with the protection function further comprises a butterfly plate assembly, wherein the butterfly plate assembly is connected with the valve rod, and the butterfly plate assembly is arranged in the valve body.
Further, the butterfly plate assembly comprises a butterfly plate body and a pressing plate, and the butterfly plate body is connected with the valve rod;
the pressing plate is connected with the butterfly plate body.
Further, the butterfly plate body is provided with a butterfly plate sealing ring, and the butterfly plate sealing ring is tightly abutted to the valve body so as to seal the gap between the butterfly plate body and the valve body.
Further, the pressing plate is detachably connected with the butterfly plate body through a pressing plate bolt.
The utility model can realize the following beneficial effects:
In a first aspect, the utility model provides a butterfly valve with a protection function, comprising a valve body, a valve rod, a valve cap and a pressing plate assembly, wherein the valve rod is connected with the valve body, the valve cap is connected with the valve body, the pressing plate assembly comprises a packing pressing plate and an outer protection piece connected with the packing pressing plate, the packing pressing plate is connected with the valve cap, and the outer protection piece is arranged along the circumferential direction of the valve rod and used for blocking sand and dust from entering a gap between the valve rod and the valve body.
In the utility model, a valve rod is arranged in a valve body and is rotationally connected with the valve body, a valve cap is arranged at the top of the valve rod, the valve cap is detachably connected with the valve body through bolts, the end part of the valve rod penetrates through the valve body, a pressing plate assembly is arranged between the valve cap and the valve body, the pressing plate assembly is provided with an outer protecting piece, and the outer protecting piece is tightly wrapped on the outer wall of the valve rod along the circumferential direction of the valve rod so as to prevent dust from entering the gap between the valve rod and the valve cap and the gap between the valve rod and the valve body.
Compared with the prior art, the butterfly valve with the protection function has the advantages that the pressing plate assembly is arranged between the valve cap and the valve body and used for wrapping the valve rod through the outer protection piece in the pressing plate assembly, so that dust is prevented from entering from a gap between the valve cap and the valve rod.
In summary, the utility model at least alleviates the technical problems of abrasion, clamping stagnation or failure of the valve rod of the butterfly valve caused by erosion of the valve rod of the butterfly valve due to sand dust when the butterfly valve is used in a special environment in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an internal structure of a butterfly valve with protection function according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;
FIG. 3 is a schematic view of a portion of a platen assembly of a butterfly valve with protection according to an embodiment of the present utility model.
The icons are 1-valve body, 2-valve rod, 21-first sliding bearing, 22-second sliding bearing, 3-valve cap, 4-lower gland, 41-gland bolt, 42-gland gasket, 5-butterfly plate assembly, 51-butterfly plate body, 511-butterfly plate sealing ring, 52-pressing plate, 521-pressing plate bolt, 6-pressing plate assembly, 61-packing pressing plate, 62-outer guard, 63-first sealing ring, 64-second sealing ring, 65-packing and 66-packing gasket.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
The embodiment provides a butterfly valve with a protection function, referring to fig. 1 or 3, the butterfly valve with the protection function comprises a valve body 1, a valve rod 2, a valve cap 3 and a pressing plate assembly 6, wherein the valve rod 2 is connected with the valve body 1, the valve cap 3 is connected with the valve body 1, the pressing plate assembly 6 comprises a packing pressing plate 61 and an outer protection piece 62 connected with the packing pressing plate 61, the packing pressing plate 61 is connected with the valve cap 3, and the outer protection piece 62 is arranged along the circumferential direction of the valve rod 2 and used for blocking sand and dust from entering a gap between the valve rod 2 and the valve body 1.
The embodiment of the utility model at least relieves the technical problems of abrasion, clamping stagnation or failure of the valve rod of the butterfly valve caused by erosion of the valve rod of the butterfly valve due to sand dust when the butterfly valve is used in a special environment in the prior art.
In the embodiment of the utility model, a valve rod 2 is arranged in a valve body 1, the valve rod 2 is rotationally connected with the valve body 1, a valve cap 3 is arranged at the top of the valve rod 2, the valve cap 3 is detachably connected with the valve body 1 through bolts, the end part of the valve rod 2 penetrates through the valve body 1, a pressing plate assembly 6 is arranged between the valve cap 3 and the valve body 1, the pressing plate assembly 6 is provided with an outer protection piece 62, and the protection piece 62 is tightly wrapped on the outer wall of the valve rod 2 along the circumferential direction of the valve rod 2 so as to prevent dust from entering a gap between the valve rod 2 and the valve cap 3 and a gap between the valve rod 2 and the valve body 1.
And, the outer protector 62 is made of a corrosion-resistant material so that it can effectively prevent penetration of corrosive media or dust, etc., and has good sealing performance, thereby protecting the valve stem 2 from corrosion and abrasion.
Compared with the prior art, the butterfly valve with the protection function provided by the embodiment of the utility model has the advantages that the pressing plate assembly 6 is arranged between the valve cap 3 and the valve body 1, and the valve rod 2 is wrapped by the outer protection piece 62 in the pressing plate assembly 6, so that dust is prevented from entering from a gap between the valve cap 3 and the valve rod 2.
In an alternative implementation of this embodiment, referring to fig. 3, the pressure plate assembly 6 further includes a first sealing ring 63 and a second sealing ring 64, where the first sealing ring 63 is connected to the packing pressure plate 61 and the first sealing ring 63 is closely abutted to the valve stem 2, and the second sealing ring 64 is connected to the packing pressure plate 61 and the second sealing ring 64 is closely abutted to the valve body 1.
Specifically, the first sealing ring 63 is connected to the inner wall of the packing pressing plate 61 along the circumferential direction and abuts against the outer wall of the valve rod 2 passing through the packing pressing plate 61 to realize sealing treatment, the second sealing ring 64 is connected to the outer wall of the packing pressing plate 61 along the circumferential direction and seals the gap between the packing pressing plate 61 and the valve body 1, and preferably, the first sealing ring 63 and the second sealing ring 64 are both made of rubber materials.
In an alternative implementation of this embodiment, referring to fig. 3, the pressing plate assembly 6 further includes a packing 65, the packing 65 is disposed between the valve rod 2 and the valve body 1, and the packing pressing plate 61 presses the packing 65 toward the valve body 1.
Specifically, a packing 65 is arranged between the bottom of the packing pressing plate 61 and the valve body 1, the packing 65 is connected with the outer wall of the valve rod 2 along the circumferential direction of the valve rod 2, and the packing 65 is pressed on the valve body 1 through the packing pressing plate 61.
Further, referring to fig. 3, the platen assembly 6 further includes a packing spacer 66, the packing spacer 66 being connected to an end of the packing 65 facing away from the packing platen 61.
Specifically, a packing spacer 66 is connected to an end of the packing 65 facing away from the packing platen 61 for separating the packing 65 from the valve body 1.
In an alternative implementation manner of the embodiment, referring to fig. 1 or 2, the butterfly valve with the protection function further comprises a lower gland 4, the lower gland 4 is connected with one end of the valve body 1 far away from the valve cap 3 through a gland bolt 41, and a gland gasket 42 is arranged between the lower gland 4 and the valve body 1.
Specifically, the lower gland 4 is connected with one end of the valve body 1 far away from the valve cap 3 through gland bolts 41, and preferably, the number of the gland bolts 41 can be multiple, and the plurality of gland bolts 41 are distributed at intervals along the circumferential direction of the lower gland 4 so as to realize detachable connection of the lower gland 4 and the valve body 1 through the gland bolts 41, and correspondingly, a gland gasket 42 is arranged between the lower gland 4 and the valve body 1, and the gland gasket 42 is used for sealing the lower gland 4 so as to prevent media from leaking out from a gap between the lower gland 4 and the valve body 1.
Further, referring to fig. 1 or 2, the valve stem 2 is provided with a first slide bearing 21 and a second slide bearing 22, the first slide bearing 21 is connected to the inner wall of the valve body 1, the first slide bearing 21 abuts against the lower gland 4, and the second slide bearing 22 is connected to the valve body 1 and the platen assembly 6, respectively.
Specifically, a first sliding bearing 21 is arranged at the bottom of the valve rod 2, the first sliding bearing 21 is connected with the inner wall of the valve body 1 so as to prevent the valve rod 2 from being damaged by friction with the valve body 1 when the valve rod 2 rotates, and a second sliding bearing 22 is arranged at the middle upper part of the valve rod 2, and the second sliding bearing 22 is connected with the valve body 1 and the pressing plate assembly 6 so as to prevent the valve rod 2 from being rubbed with the valve body 1 and the pressing plate assembly 6 when rotating.
In an alternative implementation manner of this embodiment, referring to fig. 2, the butterfly valve with the protection function further includes a butterfly plate assembly 5, where the butterfly plate assembly 5 is connected to the valve stem 2, and the butterfly plate assembly 5 is disposed in the valve body 1.
The butterfly plate assembly 5 is connected with the valve rod 2, and preferably, a transmission key is arranged on the valve rod 2, and the valve rod 2 is connected with the butterfly plate assembly 5 through the corresponding transmission key so as to realize that the valve rod 2 drives the butterfly plate assembly 5 to rotate.
Further, referring to fig. 2, the butterfly plate assembly 5 includes a butterfly plate body 51 and a pressing plate 52, the butterfly plate body 51 being connected to the valve stem 2, the pressing plate 52 being connected to the butterfly plate body 51.
Specifically, the butterfly plate body 51 is connected with the valve rod 2, and preferably, the butterfly plate body 51 is connected with the valve rod 2 through a transmission key so as to realize that the valve rod 2 drives the butterfly plate body 51 to move, a pressing plate 52 is arranged on the butterfly plate body 51, and the pressing plate 52 is detachably connected with the butterfly plate body 51.
Further, referring to fig. 2, the butterfly plate body 51 is provided with a butterfly plate seal ring 511, and the butterfly plate seal ring 511 is in close contact with the valve body 1 for sealing a gap between the butterfly plate body 51 and the valve body 1.
Specifically, the butterfly plate sealing ring 511 is connected with the butterfly plate body 51 along the circumferential direction of the butterfly plate body 51, and when the butterfly plate body 51 rotates to the first station, the butterfly plate sealing ring 511 is tightly abutted with the valve body 1 to seal the valve, and when the butterfly plate sealing ring 511 rotates to the second station, the butterfly plate sealing ring 511 is separated from the valve body 1 to open the valve.
In an alternative implementation of this embodiment, referring to fig. 2, the pressing plate 52 is detachably connected to the butterfly plate body 51 by a pressing plate bolt 521.
Specifically, the pressing plate 52 is detachably connected with the butterfly plate body 51 through the pressing plate bolts 521, and preferably, the panel size of the pressing plate 52 is the same as the area of the butterfly plate body 51, and the pressing plate bolts 521 may be multiple, and the pressing plate bolts 521 are distributed along the circumferential direction of the pressing plate 52.
Finally, it should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in terms of differences from other embodiments, and identical and similar parts of each embodiment are mutually referred to, so that the above embodiments in the present specification are only used for illustrating the technical solutions of the present utility model, but not limiting the same, and although the present utility model is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The butterfly valve with the protection function is characterized by comprising a valve body (1), a valve rod (2), a valve cap (3) and a pressing plate assembly (6), wherein the valve rod (2) is connected with the valve body (1);
The valve cap (3) is connected with the valve body (1);
The pressing plate assembly (6) comprises a packing pressing plate (61) and an outer protection piece (62) connected with the packing pressing plate (61), and the packing pressing plate (61) is connected with the valve cap (3);
The outer guard (62) is arranged along the circumference of the valve rod (2) for blocking sand and dust from entering a gap between the valve rod (2) and the valve body (1).
2. The butterfly valve with protection function according to claim 1, characterized in that the pressure plate assembly (6) further comprises a first sealing ring (63) and a second sealing ring (64), the first sealing ring (63) being connected with the packing pressure plate (61) and the first sealing ring (63) being in close abutment with the valve stem (2);
the second sealing ring (64) is connected with the packing pressing plate (61), and the second sealing ring (64) is tightly abutted with the valve body (1).
3. Butterfly valve with protection function according to claim 1, characterized in that the pressure plate assembly (6) further comprises a packing (65), the packing (65) being provided between the valve stem (2) and the valve body (1);
the packing pressing plate (61) presses the packing (65) toward the valve body (1).
4. A butterfly valve with a protection function according to claim 3, characterized in that the pressure plate assembly (6) further comprises a packing spacer (66), the packing spacer (66) being connected to an end of the packing (65) facing away from the packing pressure plate (61).
5. The butterfly valve with a protection function according to claim 1, characterized by further comprising a lower gland (4), said lower gland (4) being connected to an end of said valve body (1) remote from said bonnet (3) by a gland bolt (41);
And a gland gasket (42) is arranged between the lower gland (4) and the valve body (1).
6. Butterfly valve with protection function according to claim 5, characterized in that the valve stem (2) is provided with a first sliding bearing (21) and a second sliding bearing (22), the first sliding bearing (21) being connected to the inner wall of the valve body (1) and the first sliding bearing (21) being in abutment with the lower gland (4);
The second sliding bearing (22) is respectively connected with the valve body (1) and the pressing plate assembly (6).
7. The butterfly valve with the protection function according to claim 1, further comprising a butterfly plate assembly (5), wherein the butterfly plate assembly (5) is connected with the valve rod (2), and wherein the butterfly plate assembly (5) is arranged in the valve body (1).
8. Butterfly valve with protection function according to claim 7, characterized in that the butterfly plate assembly (5) comprises a butterfly plate body (51) and a pressure plate (52), the butterfly plate body (51) being connected with the valve stem (2);
the pressing plate (52) is connected with the butterfly plate body (51).
9. Butterfly valve with protection function according to claim 8, characterized in that the butterfly plate body (51) is provided with a butterfly plate sealing ring (511), the butterfly plate sealing ring (511) being in close abutment with the valve body (1) for sealing the gap of the butterfly plate body (51) and the valve body (1).
10. The butterfly valve with a protection function according to claim 8, characterized in that the pressure plate (52) is detachably connected with the butterfly plate body (51) by means of a pressure plate bolt (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422003945.0U CN222864150U (en) | 2024-08-16 | 2024-08-16 | Butterfly valve with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422003945.0U CN222864150U (en) | 2024-08-16 | 2024-08-16 | Butterfly valve with protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222864150U true CN222864150U (en) | 2025-05-13 |
Family
ID=95616901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422003945.0U Active CN222864150U (en) | 2024-08-16 | 2024-08-16 | Butterfly valve with protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222864150U (en) |
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2024
- 2024-08-16 CN CN202422003945.0U patent/CN222864150U/en active Active
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