CN204554030U - The stem packing sealing configuration of forged steel small ball - Google Patents
The stem packing sealing configuration of forged steel small ball Download PDFInfo
- Publication number
- CN204554030U CN204554030U CN201520214741.XU CN201520214741U CN204554030U CN 204554030 U CN204554030 U CN 204554030U CN 201520214741 U CN201520214741 U CN 201520214741U CN 204554030 U CN204554030 U CN 204554030U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- hole
- pressing plate
- valve
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 13
- 239000010959 steel Substances 0.000 title claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 12
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 230000002045 lasting effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a kind of stem packing sealing configuration of forged steel small ball, comprise valve body, described valve body is equipped with to erect puts valve rod, and described valve stem top is connected with handle; Described valve body, the connecting part of its outer surface and valve rod, is provided with and surrounds valve rod and annular groove for placing stuffing box packing; Stuffing box packing is filled with in described annular groove; Horizontal pressing plate is provided with above described annular groove; Described pressing plate is provided with keeps away a hole, keeps away a hole described in described valve rod vertically runs through, and described valve rod external diameter is Spielpassung with keeping away a hole internal diameter; A described bottom surface, hole of keeping away is extended with bulge loop for press seal filler downwards; Described pressing plate perpendicular puts bolt and valve body is fastening by two, and described two bolts are divided into valve rod both sides.The stem packing sealing configuration of the utility model forged steel small ball, it can provide enough and lasting impacting force, and can not be subject to the impact of valve rod switch, effectively can ensure the sealability of filler, reduces valve torque.
Description
Technical field
The utility model relates to the stem packing sealing configuration of forged steel small ball.
Background technique
Forged steel small ball switch is light, and volume is little, and sealing is reliable, structure is simple, easy to maintenance, be widely used in many aspects such as space flight, petrochemical industry, long-distance transport pipes, light industry and food, building, in recent years to future developments such as high temperature, high pressure, heavy caliber, high leak tightness, long lifetives.Valve rod place is as one of main leakage point of valve, and conventional Seal Design is the fastening compression gland adopting nut and screw thread on valve rod, from and compression filler, reach sealing.This project organization is simple, but filler impacting force controls not good, and multiple switching back nut easily loosens, and easily reveals, and valve rod moment of torsion is bigger than normal simultaneously, unstable.
Model utility content
The purpose of this utility model is the stem packing sealing configuration providing a kind of forged steel small ball, and it can provide enough and lasting impacting force, and can not be subject to the impact of valve rod switch, effectively can ensure the sealability of filler, reduces valve torque.
For achieving the above object, the technical solution of the utility model designs a kind of stem packing sealing configuration of forged steel small ball, comprises valve body, and described valve body is equipped with to erect puts valve rod, and described valve stem top is connected with handle;
Described valve body, the connecting part of its outer surface and valve rod, is provided with and surrounds valve rod and annular groove for placing stuffing box packing;
Stuffing box packing is filled with in described annular groove;
Horizontal pressing plate is provided with above described annular groove;
Described pressing plate is provided with keeps away a hole, keeps away a hole described in described valve rod vertically runs through, and described valve rod external diameter is Spielpassung with keeping away a hole internal diameter;
A described bottom surface, hole of keeping away is extended with bulge loop for press seal filler downwards;
Described pressing plate perpendicular puts bolt and valve body is fastening by two, and described two bolts are divided into valve rod both sides.
Preferably, described two bolts are symmetrical arranged with valve rod.
Preferably, described handle and valve rod pass through fastening nuts.
Advantage of the present utility model and beneficial effect are: the stem packing sealing configuration providing a kind of forged steel small ball, it can provide enough and lasting impacting force, and the impact of valve rod switch can not be subject to, effectively can ensure the sealability of filler, reduce valve torque.
Pressing plate is directly bolted on valve body, and by controlling wrenching torque, uniform clamping bolt, clamping platen and filler are to suitable position; During operating grip rotation valve rod switch, owing to leaving enough gaps between valve rod and pressing plate, only stuffing box packing and valve stem contacts are sealed, reduce moment of torsion and the compression of pressing plate can not be affected, there is provided enough sealing forces by bolt simultaneously, ensure that the reliability of sealing.
Accompanying drawing explanation
Fig. 1 is schematic side view of the present utility model;
Fig. 2 is schematic top plan view of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
The technological scheme that the utility model is specifically implemented is:
As shown in Figure 1 and Figure 2, a kind of valve rod 2 filler 4 sealing configuration of forged steel small ball, comprises valve body 1, and described valve body 1 is equipped with to erect puts valve rod 2, and described valve rod 2 top is connected with handle 3;
Described valve body 1, the connecting part of its outer surface and valve rod 2, is provided with and surrounds valve rod 2 and annular groove for placing stuffing box packing 4;
Stuffing box packing 4 is filled with in described annular groove;
Horizontal pressing plate 5 is provided with above described annular groove;
Described pressing plate 5 is provided with keeps away a hole, keeps away a hole described in described valve rod 2 vertically runs through, and described valve rod 2 external diameter is Spielpassung with keeping away a hole internal diameter;
A described bottom surface, hole of keeping away is extended with bulge loop 6 for press seal filler 4 downwards;
Perpendicular to put bolt 7 fastening with valve body 1 by two for described pressing plate 5, and described two bolts 7 are divided into valve rod 2 both sides, and two bolts 7 are symmetrical arranged with valve rod 2.
Described handle 3 is fastening by nut 8 with valve rod 2.
Pressing plate 5 is directly connected on valve body 1 by bolt 7, and by controlling wrenching torque, uniform clamping bolt 7, clamping platen 5 and filler 4 are to suitable position; During operating grip 3 rotation valve rod 2 switch, owing to leaving enough gaps between valve rod 2 and pressing plate 5, only stuffing box packing 4 is contacted with valve rod 2 and seals, reduce moment of torsion and the compression of pressing plate 5 can not be affected, there is provided enough sealing forces by bolt 7 simultaneously, ensure that the reliability of sealing.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the stem packing sealing configuration of forged steel small ball, comprises valve body, and described valve body is equipped with to erect puts valve rod, and described valve stem top is connected with handle; It is characterized in that:
Described valve body, the connecting part of its outer surface and valve rod, is provided with and surrounds valve rod and annular groove for placing stuffing box packing;
Stuffing box packing is filled with in described annular groove;
Horizontal pressing plate is provided with above described annular groove;
Described pressing plate is provided with keeps away a hole, keeps away a hole described in described valve rod vertically runs through, and described valve rod external diameter is Spielpassung with keeping away a hole internal diameter;
A described bottom surface, hole of keeping away is extended with bulge loop for press seal filler downwards;
Described pressing plate perpendicular puts bolt and valve body is fastening by two, and described two bolts are divided into valve rod both sides.
2. the stem packing sealing configuration of forged steel small ball according to claim 1, is characterized in that, described two bolts are symmetrical arranged with valve rod.
3. the stem packing sealing configuration of forged steel small ball according to claim 2, is characterized in that, described handle and valve rod pass through fastening nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520214741.XU CN204554030U (en) | 2015-04-12 | 2015-04-12 | The stem packing sealing configuration of forged steel small ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520214741.XU CN204554030U (en) | 2015-04-12 | 2015-04-12 | The stem packing sealing configuration of forged steel small ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204554030U true CN204554030U (en) | 2015-08-12 |
Family
ID=53829141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520214741.XU Expired - Fee Related CN204554030U (en) | 2015-04-12 | 2015-04-12 | The stem packing sealing configuration of forged steel small ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204554030U (en) |
-
2015
- 2015-04-12 CN CN201520214741.XU patent/CN204554030U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |