CN205908858U - Novel adjusting ball valve - Google Patents
Novel adjusting ball valve Download PDFInfo
- Publication number
- CN205908858U CN205908858U CN201620583494.5U CN201620583494U CN205908858U CN 205908858 U CN205908858 U CN 205908858U CN 201620583494 U CN201620583494 U CN 201620583494U CN 205908858 U CN205908858 U CN 205908858U
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- valve
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- valve rod
- elastic layer
- layer
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Abstract
The utility model discloses a novel adjusting ball valve, including hold down grid, gland, filler, upper valve rod, valve rod bearing, lower valve rod, case and disk seat, case and disk seat are installed in the valve body, and the disk seat passes through clamping ring fixed mounting in the valve body, and the through -hole fixed mounting that the lower extreme of upper valve rod passed the valve body top is at the top of case, and the through -hole fixed mounting that the valve body bottom was passed to the upper end of lower valve rod is in the bottom of case, be equipped with the valve rod bearing between upper valve rod and the valve body, the top of valve rod bearing is equipped with the filler, and the filler compresses tightly in the packing cavity of installing between upper valve rod and valve body through gland and hold down grid, pack to the packing filler, pack including weaving layer and elastic layer, the outside of elastic layer is located to the weaving layer to wrap the elastic layer. The utility model discloses a technique aim at provides the novel adjusting ball valve that a stem seal is reliable more, stem seal is more durable.
Description
Technical field
This utility model is related to valve field, particularly a kind of new regulation ball valve.
Background technology
Ball valve is mainly used to make the flow direction cutting off, distribute and changing medium in pipeline, and it only needs to rotation 90
The rotating torque of the operation of degree and very little just can be closed tightly, and cutting ball valve is turned off one kind of valve.
It is frequently present of leakage, the sealing at valve rod is unreliable at existing regulation ball-valve valve rod and valve element, and at valve rod
, after the use of long period, filler is easily aging for filler, and filler easily lacks flexibility so that the reliability of valve stem seal
Reduce.
Utility model content
The deficiency existing for above-mentioned regulation ball valve, technical purpose of the present utility model is to provide a kind of valve stem seal more
Plus the new regulation ball valve that reliability, valve stem seal are more durable.
This utility model is achieved through the following technical solutions:
A kind of new regulation ball valve, including hold-down grid, gland, filler, upper valve rod, stem bearing, lower valve rod, valve
Core and valve seat, described valve element and valve seat are arranged in valve body, and valve seat is fixedly mounted in valve body by trim ring, the lower end of upper valve rod
Through hole through body top is fixedly mounted on the top of valve element, and the upper end of lower valve rod passes through the through hole fixed installation of body base
It is provided with stem bearing between the bottom of valve element, described upper valve rod and valve body, the top of stem bearing is provided with filler, and filler passes through
Gland and hold-down grid compression are arranged in the packing cavity between upper valve rod and valve body；Filler is packing filling, described fills out
Material includes braiding layer and elastic layer, and braiding layer is located at the outside of elastic layer, and elastic layer is wrapped.
In technique scheme, valve seat is fixedly mounted in valve body so that the mounting means of valve seat is cleverer by trim ring
Live, can install language valve element afterwards, also can install prior to valve element, also can be by adjusting trim ring come the sealing between regulating valve seat and valve element
Pressure is so that the sealing of valve is relatively reliable；Upper valve rod is separately designed with lower valve rod, be set to hollow-core construction in the middle part of valve element so that
The weight of valve element is less, so that the weight of whole valve is less, and can be cost-effective；Between upper valve rod and valve body
It is provided with stem bearing so that the rotating torque of upper valve rod is less, and the center of upper valve rod can be limited in same position, when
When valve rod and stem bearing abrasion transition, directly can change stem bearing, thus saving the cost of overhaul；By filler is set
For packing filling, and filler includes braiding layer and elastic layer, and the braiding layer of filler makes the sealing at valve rod relatively reliable, will
, located at the outside of braiding layer, braiding layer can protect elastic layer so that the elasticity of elastic layer can be lasting for elastic layer, and to volume
The deformation of tissue layer provides and supplements, so that the sealing of filler is relatively reliable, valve stem seal is more durable.
Further, described braiding layer is worked out by teflin tape and polypropylene tape, teflin tape with poly-
The ratio of propylene band is 4:1, a diameter of 0.5～2mm of teflin tape and polypropylene tape.
In technique scheme, braiding layer is worked out by teflin tape and polypropylene tape, teflin tape with
The ratio of polypropylene tape is 4:1, and politef has high temperature resistant, low temperature resistant, corrosion-resistant, weatherability, high lubrication, do not adhere to
Advantage, strength of PP is big, lightweight the advantages of so that the sealing effectiveness of filler is relatively reliable, filler is more durable, and
And it is less to the frictional force of valve rod；A diameter of 0.5～2mm of teflin tape and polypropylene tape is so that teflin tape
Weave tightr with the filler of polypropylene tape braiding.
Further, the cross sectional shape of described braiding layer be rectangular or square, braiding layer be formed around fillet.
In technique scheme, by by the cross sectional shape of braiding layer be rectangular or square, by by braiding layer
It is formed around fillet so that braiding layer has corner enhancing structure, the requirement of different interface dimensions can be met.
Further, described elastic layer is circle, and the center of elastic layer is provided with through hole, and the material of elastic layer is butyronitrile rubber
Glue.
In technique scheme, by elastic layer is set to circle, the center of elastic layer is provided with through hole so that elastic layer
Elasticity is relatively reliable, and elastic force is more lasting.
Further, the ratio of the outside diameter of described elastic layer and interior circular diameter is 3:1.
In technique scheme, by the ratio of the outside diameter of elastic layer and interior circular diameter is set to 3:1 so that elasticity
The elasticity of layer is more lasting.
Further, the sealing surface that described valve seat and valve element cooperatively form is set to circular arc, and the material of valve seat is ptfe, valve
The sealing surface of seat is provided with the extension along circular arc, and the sealing surface of valve seat is provided with circular groove, and the depth of described circular groove is
0.2～2mm, width is 1mm.
In technique scheme, circular arc is set to by the sealing surface cooperatively forming valve seat and valve element, and seat is close
Front cover is provided with the extension along circular arc so that the sealing of valve is relatively reliable, and the material of valve seat is ptfe so that valve has
Additionally it is possible to mitigate the weight of valve, with respect to the material of copper material, the sealing effectiveness of ptfe material is more preferable, more for reliable sealing
Easy processing, cost is lower；Circular groove is provided with by the sealing surface in valve seat, circular groove does not mutually connect, the depth of circular groove
Spend for 0.2～2mm, width is 1mm, and when valve element and seat compression, valve seat can have suitable buffering to deform, in valve element and valve seat
When not contacting sealing, valve seat can restore to the original state so that the sealing effectiveness of valve is more preferable.
The beneficial effects of the utility model are:
1st, by filler is set to packing filling, and filler includes braiding layer and elastic layer, and the braiding layer of filler makes
Sealing at valve rod is relatively reliable, and by elastic layer located at the outside of braiding layer, braiding layer can protect elastic layer so that elastic layer
Elasticity can be lasting, and the deformation of braiding layer provided supplement, so that the sealing of filler is relatively reliable, valve stem seal
More durable.
2nd, braiding layer is worked out by teflin tape and polypropylene tape, the ratio of teflin tape and polypropylene tape
For 4:1, politef has the advantages that high temperature resistant, low temperature resistant, corrosion-resistant, weatherability, high lubrication, does not adhere to, and polypropylene is strong
The advantages of degree is big, lightweight, so that the sealing effectiveness of filler is relatively reliable, filler is more durable, and rubs to valve rod
Wiping power is less；A diameter of 0.5～2mm of teflin tape and polypropylene tape is so that teflin tape is compiled with polypropylene tape
The filler knitted weaves tightr.
3rd, pass through by the cross sectional shape of braiding layer be rectangular or square, by by braiding layer be formed around fillet,
Make braiding layer have corner enhancing structure, the requirement of different interface dimensions can be met.
Brief description
Fig. 1 is general structure schematic diagram of the present utility model；
Fig. 2 is the structural representation of filler.
In figure labelling: 1 is hold-down grid, 2 is gland, 3 is filler, 3.1 is braiding layer, 3.2 is elastic layer, 4 are
Upper valve rod, 5 be stem bearing, 6 be lower valve rod, 7 be valve element, 8 be valve seat, 9 be trim ring, 10 be valve element bearing.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail.
New regulation ball valve as depicted in figs. 1 and 2, comprising: hold-down grid 1, gland 2, filler 3, braiding layer
3.1st, elastic layer 3.2, upper valve rod 4, stem bearing 5, lower valve rod 6, valve element 7, valve seat 8, trim ring 9 and valve element bearing 10, described valve
Core 7 and valve seat 8 are arranged in valve body, and valve seat 8 is fixedly mounted in valve body by trim ring 9, and the lower end of upper valve rod 4 passes through valve body top
The through hole in portion is fixedly mounted on the top of valve element 7, and the upper end of lower valve rod 6 passes through the through hole of body base to be fixedly mounted on valve element 7
Bottom, be provided with stem bearing 5 between described upper valve rod 4 and valve body, the top of stem bearing 5 is provided with filler 3, and filler 3 passes through
Gland 2 and hold-down grid 1 compression are arranged in the packing cavity between upper valve rod 4 and valve body；Filler 3 is packing filling, institute
State filler 3 and include braiding layer 3.1 and elastic layer 3.2, braiding layer 3.1 is located at the outside of elastic layer 3.2, and elastic layer 3.2 is wrapped up in
Live；Described braiding layer 3.1 is worked out by teflin tape and polypropylene tape, the ratio of teflin tape and polypropylene tape
For 4:1, a diameter of 0.5～2mm of teflin tape and polypropylene tape, the diameter of usual teflin tape and polypropylene tape
For 1mm；The cross sectional shape of described braiding layer 3.1 be rectangular or square, braiding layer 3.1 be formed around fillet；Described elasticity
Layer 3.2 is circle, and the center of elastic layer 3.2 is provided with through hole, and the material of elastic layer is nitrile rubber；Outside described elastic layer 3.2
The ratio of circular diameter and interior circular diameter is 3:1；The sealing surface that described valve seat 8 is cooperatively formed with valve element 7 is set to circular arc, valve seat 8
Material be ptfe, the sealing surface of valve seat 8 is provided with the extension along circular arc, and the sealing surface of valve seat 8 is provided with circular groove, described
The depth of circular groove is 0.2～2mm, and the depth of generally rounded groove is 1.2mm, and width is 1mm.
Filler 3 is set to packing filling, and filler 3 includes braiding layer 3.1 and elastic layer 3.2, the braiding layer of filler 3
3.1 make the sealing at valve rod relatively reliable, and by elastic layer 3.2 located at the outside of braiding layer 3.1, braiding layer 3.1 can be protected
Elastic layer 3.2 is so that the elasticity of elastic layer 3.2 can be lasting, and the deformation to braiding layer 3.1 provides supplement, so that
The sealing of filler 3 is relatively reliable, valve stem seal is more durable.
Claims (6)
1. a kind of new regulation ball valve is it is characterised in that include hold-down grid (1), gland (2), filler (3), upper valve rod
(4), stem bearing (5), lower valve rod (6), valve element (7) and valve seat (8), described valve element (7) and valve seat (8) are arranged in valve body,
Valve seat (8) is fixedly mounted in valve body by trim ring (9), and the lower end of upper valve rod (4) passes through the through hole fixed installation of body top
At the top of valve element (7), the upper end of lower valve rod (6) passes through the through hole of body base to be fixedly mounted on the bottom of valve element (7), described
Upper valve rod (4) is provided with stem bearing (5) and valve body between, and the top of stem bearing (5) is provided with filler (3), and filler (3) passes through to fill out
Material gland (2) and hold-down grid (1) compression are arranged in packing cavity and valve body between for the upper valve rod (4)；Filler (3) is filled out for packing
Material, described filler (3) includes braiding layer (3.1) and elastic layer (3.2), braiding layer (3.1) located at the outside of elastic layer (3.2),
And elastic layer (3.2) is wrapped.
2. as claimed in claim 1 new regulation ball valve it is characterised in that described braiding layer (3.1) is by teflin tape
Work out with polypropylene tape, the ratio of teflin tape and polypropylene tape is 4:1, teflin tape and polypropylene tape
A diameter of 0.5～2mm.
3. as claimed in claim 2 new regulation ball valve it is characterised in that described braiding layer (3.1) cross sectional shape be square
Shape or square, braiding layer (3.1) be formed around fillet.
4. as claimed in claim 3 new regulation ball valve it is characterised in that described elastic layer (3.2) be circle, elastic layer
(3.2) center is provided with through hole, and the material of elastic layer is nitrile rubber.
5. as claimed in claim 4 new regulation ball valve it is characterised in that the outside diameter of described elastic layer (3.2) with interior
The ratio of circular diameter is 3:1.
6. as claimed in claim 5 new regulation ball valve it is characterised in that what described valve seat (8) and valve element (7) cooperatively formed
Sealing surface is set to circular arc, and the material of valve seat (8) is ptfe, and the sealing surface of valve seat (8) is provided with the extension along circular arc, valve seat
(8) sealing surface is provided with circular groove, and the depth of described circular groove is 0.2～2mm, and width is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620583494.5U CN205908858U (en) | 2016-06-16 | 2016-06-16 | Novel adjusting ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620583494.5U CN205908858U (en) | 2016-06-16 | 2016-06-16 | Novel adjusting ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908858U true CN205908858U (en) | 2017-01-25 |
Family
ID=57815048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620583494.5U Active CN205908858U (en) | 2016-06-16 | 2016-06-16 | Novel adjusting ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908858U (en) |
-
2016
- 2016-06-16 CN CN201620583494.5U patent/CN205908858U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Jinggang Inventor before: Wang Huan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170912 Address after: 062151 four battalion Township Industrial Development Zone, Hebei, Botou Patentee after: Hebei Tongli automatic control valve manufacturing Co. Ltd. Address before: 610000 Chengdu City, Wuhou District Province, the South Ring Road, No. two, No. 1, No. 1, floor 31, No. 5 Patentee before: CHENGDU DESHANNENG TECHNOLOGY CO., LTD. |