CN203963039U - There is the valve of stuffing seal - Google Patents
There is the valve of stuffing seal Download PDFInfo
- Publication number
- CN203963039U CN203963039U CN201420419027.XU CN201420419027U CN203963039U CN 203963039 U CN203963039 U CN 203963039U CN 201420419027 U CN201420419027 U CN 201420419027U CN 203963039 U CN203963039 U CN 203963039U
- Authority
- CN
- China
- Prior art keywords
- valve
- elastic component
- valve rod
- stuffing seal
- described valve
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000945 filler Substances 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of valve with stuffing seal, comprise valve body, be arranged on valve seat in valve body, be arranged on valve rod on valve body and the stuffing seal for gap between sealed valve stem and valve body; The bottom of valve rod is fixedly connected with valve seat by fixing device; Stuffing seal comprises by bearing pin and is hinged on the lock bolt on valve body, and be fixed on hold-down grid and the elastic component on lock bolt by locking nut, between elastic component and lock bolt, be provided with lining, lining forms radially outwardly annular boss near one end of locking nut, and annular boss is clamped spacing between locking nut and elastic component.In valve of the present utility model, can there is not jam in the screw section of elastic component and valve rod, thereby can not affect stuffing seal and normally work.
Description
Technical field
The utility model relates to a kind of valve with stuffing seal, belongs to valve mechanism design field.
Background technique
Use Gland to carry out in the structure of pre-tightening seal at valve, generally all adopt the locking nut on hold-down grid to be arranged with elastic component, the butterfly spring that this elastic component is overlapped by several pieces forms; Now after filler is compacted, due to the accumulation of energy effect of elastic component, after work, filler occurs after wearing and tearing and performance change, elastic component can be in the scope of certain pretightening force, still continue to keep the effect of corresponding locking nut pretightening force, for reducing the leakage of medium and keeping in repair frequently the good effect of having played.And in actual use, dish spring can jam occur with the screw section of lock bolt, and then affect it and normally work.
Model utility content
Technical problem to be solved in the utility model is that now valvular stuffing seal is in the time of work, and jam occurs in elastic component screw section easy and lock bolt, and then affects the problem of using effect.
The technological scheme that realizes the utility model object is:
There is a valve for stuffing seal, comprise valve body, be arranged on valve seat in described valve body, be arranged on valve rod on described valve body and for sealing the described stuffing seal in gap between described valve rod and described valve body; The bottom of described valve rod is fixedly connected with described valve seat by fixing device; Described stuffing seal comprises by bearing pin and is hinged on the lock bolt on described valve body, and be fixed on hold-down grid and the elastic component on described lock bolt by locking nut, between described elastic component and described lock bolt, be provided with the lining for preventing that described elastic component from contacting with the screw section of described lock bolt, described lining forms radially outwardly annular boss near one end of described locking nut, and described annular boss is clamped spacing between described locking nut and described elastic component.
In technique scheme, the dish spring that described elastic component is overlapped by several pieces forms.
In technique scheme, described fixing device comprises the externally threaded fixed base that is provided with being set on described valve rod, the bottom of described valve rod forms the positive stop lug boss for preventing the slippage from described valve rod of described fixed base, described valve seat is provided with the internal thread matching with the described outside thread on described fixed base, thereby described internal thread is fixedly connected with described fixed base with described outside thread screw-thread fit with described valve seat, the bottom end of described valve rod offsets with the wear parts being located on described valve seat.
In technique scheme, described wear parts is block structure, and described valve seat is provided with the groove that is suitable for arranging described wear parts.
In technique scheme, the bottom end of described valve rod is arc convex.
In technique scheme, the lower end of described valve rod is provided with the wide section of body of rod diameter overstriking.
The utlity model has positive effect: in (1) valve of the present utility model, owing to being provided with lining between lock bolt and elastic component, so just the screw section of elastic component and lock bolt can be separated, thereby avoid valve elastic component and lock bolt generation jam phenomenon in the course of the work, ensure the using effect of stuffing seal.(2) in valve of the present utility model, described fixing device comprises the externally threaded fixed base that is provided with being set on described valve rod, the bottom of described valve rod forms the positive stop lug boss for preventing the slippage from described valve rod of described fixed base, described valve seat is provided with the internal thread matching with the described outside thread on described fixed base, thereby described internal thread is fixedly connected with described fixed base with described outside thread screw-thread fit with described valve seat, the bottom end of described valve rod offsets with the wear parts being located on described valve seat; By adopt said structure by firm valve seat being fixed on valve rod, can effectively avoid valve rod and valve seat to rub by wear parts is set simultaneously, and then extend the working life of product.(3) in valve of the present utility model, the lower end of described valve rod is provided with the wide section of body of rod diameter overstriking; By adopting this structure can effectively improve intensity and the rigidity of valve rod, and then strengthen the ability of valve rod opposing vibration limits.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model valve;
Fig. 2 is the partial enlarged view at A place in Fig. 1.
Reference character shown in figure is: 1-valve body; 2-valve seat; 3-valve rod; 31-positive stop lug boss; 32-wide section; 4-lock bolt; 5-locking nut; 6-hold-down grid; 7-elastic component; 8-lining; 81-annular boss; 9-fixed base; 10-wear parts.
Embodiment
Below in conjunction with Figure of description, the concrete structure of the valve with stuffing seal of the present utility model is done to illustrate.
A kind of valve with stuffing seal, as depicted in figs. 1 and 2, it comprises valve body 1, is arranged on valve seat 2 in described valve body 1, is arranged on valve rod 3 on described valve body 1 and for sealing the described stuffing seal in gap between described valve rod 3 and described valve body 1; The bottom of described valve rod 3 is fixedly connected with described valve seat 2 by fixing device; Described stuffing seal comprises by bearing pin and is hinged on the lock bolt 4 on described valve body 1, and be fixed on hold-down grid 6 and the elastic component 7 on described lock bolt 4 by locking nut 5, between described elastic component 7 and described lock bolt 4, be provided with the lining 8 for preventing that described elastic component 7 from contacting with the screw section of described lock bolt 4, described lining 8 forms radially outwardly annular boss 81 near one end of described locking nut 5, and described annular boss 81 is clamped spacing between described locking nut 5 and described elastic component 7.In the valve of the present embodiment, owing to being provided with lining 8 between lock bolt 4 and elastic component 7, so just elastic component 7 and the screw section of lock bolt 4 can be separated, thereby avoid valve in the course of the work elastic component 7 there is jam phenomenon with lock bolt 4, ensure the using effect of stuffing seal; By annular boss 81 is set, can effectively prevent that lining 8 from arbitrarily moving on described valve rod 3.
In the present embodiment, the dish spring that described elastic component 7 is overlapped by several pieces forms, and in practical operation, described elastic component 7 can be also helical compression spring.
Described fixing device in the present embodiment comprises the externally threaded fixed base 9 that is provided with being set on described valve rod 3, the bottom of described valve rod 3 forms the positive stop lug boss 31 for preventing the slippage from described valve rod 3 of described fixed base 9, described valve seat 2 is provided with the internal thread matching with the described outside thread on described fixed base 9, thereby described internal thread is fixedly connected with described fixed base 9 with described outside thread screw-thread fit with described valve seat 2, the bottom end of described valve rod 3 offsets with the wear parts 10 being located on described valve seat 2; Wear parts 10 in the present embodiment is made for chromium alloy material, and in practice, described wear parts 10 also can adopt other high-abrasive material to make; The bottom end of the described valve rod 3 in the present embodiment is arc convex.Can, by firm valve seat 2 being fixed on valve rod 3, by being set, wear parts can effectively avoiding valve rod 3 and valve seat 2 to rub, and then extend the working life of product by adopting said structure.
In the present embodiment, described wear parts 10 is block structure, and described valve seat 2 is provided with the groove that is suitable for arranging described wear parts 10, by adopting this structure can effectively prevent that the position that is arranged on the wear parts 10 on valve seat 2 from changing.
In the present embodiment, the lower end of described valve rod 3 is provided with the wide section 32 of body of rod diameter overstriking; By adopting this structure can effectively improve intensity and the rigidity of valve rod 3, and then strengthen the ability that valve rod 3 is resisted vibration limits.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (6)
1. there is a valve for stuffing seal, comprise valve body (1), be arranged on valve seat (2) in described valve body (1), be arranged on valve rod (3) on described valve body (1) and for sealing the described stuffing seal in gap between described valve rod (3) and described valve body (1), the bottom of described valve rod (3) is fixedly connected with described valve seat (2) by fixing device, it is characterized in that: described stuffing seal comprises by bearing pin and is hinged on the lock bolt (4) on described valve body (1), and be fixed on hold-down grid (6) and the elastic component (7) on described lock bolt (4) by locking nut (5), between described elastic component (7) and described lock bolt (4), be provided with the lining (8) for preventing that described elastic component (7) from contacting with the screw section of described lock bolt (4), described lining (8) forms radially outwardly annular boss (81) near one end of described locking nut (5), described annular boss (81) is clamped spacing between described locking nut (5) and described elastic component (7).
2. the valve with stuffing seal according to claim 1, is characterized in that: the dish spring that described elastic component (7) is overlapped by several pieces forms.
3. the valve with stuffing seal according to claim 1 and 2, it is characterized in that: described fixing device comprises being set in and is provided with externally threaded fixed base (9) on described valve rod (3), the bottom of described valve rod (3) forms the positive stop lug boss (31) for preventing described fixed base (9) slippage from described valve rod (3), described valve seat (2) is provided with the internal thread matching with the described outside thread on described fixed base (9), thereby described internal thread is fixedly connected with described fixed base (9) with described outside thread screw-thread fit with described valve seat (2), the bottom end of described valve rod (3) offsets with the wear parts (10) being located on described valve seat (2).
4. the valve with stuffing seal according to claim 3, is characterized in that: described wear parts (10) is block structure, and described valve seat (2) is provided with the groove that is suitable for arranging described wear parts (10).
5. the valve with stuffing seal according to claim 3, is characterized in that: the bottom end of described valve rod (3) is arc convex.
6. the valve with stuffing seal according to claim 1, is characterized in that: the lower end of described valve rod (3) is provided with the wide section (32) of body of rod diameter overstriking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419027.XU CN203963039U (en) | 2014-07-28 | 2014-07-28 | There is the valve of stuffing seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419027.XU CN203963039U (en) | 2014-07-28 | 2014-07-28 | There is the valve of stuffing seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963039U true CN203963039U (en) | 2014-11-26 |
Family
ID=51923622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420419027.XU Expired - Lifetime CN203963039U (en) | 2014-07-28 | 2014-07-28 | There is the valve of stuffing seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203963039U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327626A (en) * | 2017-08-31 | 2017-11-07 | 天津包博特密封科技有限公司 | A kind of high leakproofness valve rod |
| CN108050267A (en) * | 2017-12-15 | 2018-05-18 | 安徽铜都流体科技股份有限公司 | Six sealings, zero friction accumulation of energy dual-top type spiral valve |
| CN109210266A (en) * | 2018-11-06 | 2019-01-15 | 苏州市万向机械制造有限公司 | A kind of oil equipment control valve for preventing from arbitrarily opening |
-
2014
- 2014-07-28 CN CN201420419027.XU patent/CN203963039U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327626A (en) * | 2017-08-31 | 2017-11-07 | 天津包博特密封科技有限公司 | A kind of high leakproofness valve rod |
| CN108050267A (en) * | 2017-12-15 | 2018-05-18 | 安徽铜都流体科技股份有限公司 | Six sealings, zero friction accumulation of energy dual-top type spiral valve |
| CN108050267B (en) * | 2017-12-15 | 2023-09-26 | 安徽铜都流体科技股份有限公司 | Six-seal zero-friction energy-storage double-top type spin valve |
| CN109210266A (en) * | 2018-11-06 | 2019-01-15 | 苏州市万向机械制造有限公司 | A kind of oil equipment control valve for preventing from arbitrarily opening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |