CN204164414U - The soft sealing ball valve that seal ring barb is fixing - Google Patents
The soft sealing ball valve that seal ring barb is fixing Download PDFInfo
- Publication number
- CN204164414U CN204164414U CN201420602509.9U CN201420602509U CN204164414U CN 204164414 U CN204164414 U CN 204164414U CN 201420602509 U CN201420602509 U CN 201420602509U CN 204164414 U CN204164414 U CN 204164414U
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- valve
- rubber seal
- seal
- spheroid
- grease
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Abstract
The utility model relates to the fixing soft sealing ball valve of a kind of seal ring barb, comprise valve body, valve seat, spheroid, valve rod, gland, transmission device, valve rod lower end is fixedly connected with spheroid, upper end is connected with transmission device through gland, valve seat is shaped with the circular groove concentric with valve channel in face of spheroid direction, in this circular groove, rubber seal is installed, rubber seal and spheroid cooperatively interact and seal, mainly circular groove sidewall is shaped with annular slope boss, and the corresponding side of rubber seal is shaped with the annular slope groove cooperatively interacted with described annular slope boss.Rubber seal forms overhead structure after being press fit into the circular groove of valve seat, rubber seal is installed and firmly, not easily drops out, reduce the wearing and tearing of rubber seal, extend the working life of rubber seal, improve the sealability of ball valve.Be applicable to cryogenic media operating mode.
Description
Technical field
The utility model belongs to valve field, particularly about a kind of soft sealing ball valve.The utility model is applicable to cryogenic media operating mode.
Background technique
Soft sealing ball valve comprises valve body, valve seat, spheroid, valve rod, gland, transmission device, valve rod lower end is fixedly connected with spheroid, upper end is connected with transmission device through gland, valve seat and spheroid adopt soft sealing structure, namely on valve seat, rubber seal is installed, realize being sealed and matched between spheroid, its good seal performance, is generally used in worst cold case.Its major defect is: rubber seal is sleeved in the circular groove on valve seat, in opening-closing process, rubber seal easily produces shake, increase the wearing and tearing to rubber seal, even easily there is rubber seal under high pressure operating mode to fly out phenomenon, the seal ring life-span is short, sealing reliability is poor, and the stuffing box packing especially between cryogenic media operating mode valve rod and valve gap is easily worn and occurs leaking.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides the soft sealing ball valve that the reliable seal ring barb of a kind of seal ring long service life, sealability is fixing.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, gland, transmission device, valve rod lower end is fixedly connected with spheroid, upper end is connected with transmission device through gland, valve seat is shaped with the circular groove concentric with valve channel in face of spheroid direction, in this circular groove, install rubber seal, rubber seal and spheroid cooperatively interact and seal; Mainly circular groove sidewall is shaped with annular slope boss, and the corresponding side of rubber seal is shaped with the annular slope groove cooperatively interacted with described annular slope boss; Automatic greasing device is provided with in the middle of stuffing box packing between valve rod and gland, this automatic greasing device is made up of grease pouring valve and pressure transducer, the outlet of grease pouring valve is communicated with the grease seal groove in the middle of stuffing box packing, the import of grease pouring valve and the outlet of grease pump, between the valve rod that pressure transducer is arranged on stuffing box packing upper end and gland, its pressure signal is connected in the power control circuit of grease pouring valve and grease pump by conveyor line.
In above technological scheme, the valve seat inside rubber seal is shaped with grease seal groove, this grease seal groove is communicated with the greasing mouth on valve body.
The utility model advantage compared with prior art adopts annular slope groove and annular slope boss to cooperatively interact between rubber seal and valve seat to install, rubber seal forms overhead structure after being press fit into the circular groove of valve seat, rubber seal is installed firmly, not easily drop out, reduce the wearing and tearing of rubber seal, extend the working life of rubber seal, improve the sealability of ball valve; Be provided with automatic greasing device in the middle of stuffing box packing between valve rod and gland, when stuffing box packing occurs to leak, its pressure transducer detects leakage signal, opens grease pump and grease pouring valve automatic greasing, prevents medium from leaking between valve rod and gland.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is I place schematic enlarged-scale view in the utility model Fig. 1.
Embodiment
The soft sealing ball valve that seal ring barb is as shown in Figure 1 fixing, comprise valve body, valve seat 2, spheroid 3, valve rod 11, gland 5, transmission device, valve rod 11 lower end is fixedly connected with spheroid 3, upper end is connected with transmission device through gland 5, valve seat 2 is shaped with the circular groove concentric with valve channel in face of spheroid 3 direction, rubber seal 7 is installed in this circular groove, rubber seal 7 and spheroid 3 cooperatively interact and seal, circular groove sidewall is shaped with annular slope boss 10, the corresponding side of rubber seal 7 is shaped with the annular slope groove cooperatively interacted with described annular slope boss 10, the bevel direction of described annular slope boss 10 guarantees that rubber seal 7 easily loads in circular groove, and annular slope boss 10 forms barb with the annular slope groove in rubber seal 7 and coordinates after loading, rubber seal 7 is made to install firmly, prevent it from dropping out in valve seat 2 circular groove, automatic greasing device is provided with in the middle of stuffing box packing between valve rod 11 and gland 5, this automatic greasing device is made up of grease pouring valve 6 and pressure transducer 12, the outlet of grease pouring valve 6 is communicated with the grease seal groove in the middle of stuffing box packing, the import of grease pouring valve 6 and the outlet of grease pump, pressure transducer 12 is arranged between the valve rod 11 of stuffing box packing upper end and gland 5, and its pressure signal is connected in the power control circuit of grease pouring valve 6 and grease pump by conveyor line 9.
Valve seat 2 inside rubber seal 7 is shaped with grease seal groove 8, and this grease seal groove 8 is communicated with the greasing mouth on valve body, as shown in Figure 2.Valve body is made up of left valve barrel 1, middle valve body 4, right valve barrel 13, and spheroid 3 adopts fixing spherical structure in valve pocket.
Claims (2)
1. the soft sealing ball valve that a seal ring barb is fixing, comprise valve body, valve seat (2), spheroid (3), valve rod (11), gland (5), transmission device, valve rod (11) lower end is fixedly connected with spheroid (3), upper end is connected with transmission device through gland (5), valve seat (2) is shaped with the circular groove concentric with valve channel in face of spheroid (3) direction, in this circular groove, install rubber seal (7), rubber seal (7) and spheroid (3) cooperatively interact and seal; It is characterized in that circular groove sidewall is shaped with annular slope boss (10), rubber seal (7) corresponding side is shaped with the annular slope groove cooperatively interacted with described annular slope boss (10); Automatic greasing device is provided with in the middle of stuffing box packing between valve rod (11) and gland (5), this automatic greasing device is made up of grease pouring valve (6) and pressure transducer (12), the outlet of grease pouring valve (6) is communicated with the grease seal groove in the middle of stuffing box packing, the import of grease pouring valve (6) and the outlet of grease pump, pressure transducer (12) is arranged between the valve rod (11) of stuffing box packing upper end and gland (5), and its pressure signal is connected in the power control circuit of grease pouring valve (6) and grease pump by conveyor line (9).
2. the soft sealing ball valve that seal ring barb according to claim 1 is fixing, it is characterized in that being shaped with grease seal groove (8) on the valve seat (2) of rubber seal (7) inner side, this grease seal groove (8) is communicated with the greasing mouth on valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602509.9U CN204164414U (en) | 2014-10-15 | 2014-10-15 | The soft sealing ball valve that seal ring barb is fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602509.9U CN204164414U (en) | 2014-10-15 | 2014-10-15 | The soft sealing ball valve that seal ring barb is fixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164414U true CN204164414U (en) | 2015-02-18 |
Family
ID=52538102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420602509.9U Active CN204164414U (en) | 2014-10-15 | 2014-10-15 | The soft sealing ball valve that seal ring barb is fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300041A (en) * | 2017-06-19 | 2017-10-27 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| CN116697085A (en) * | 2023-06-13 | 2023-09-05 | 五洲阀门股份有限公司 | High-tightness ball valve |
-
2014
- 2014-10-15 CN CN201420602509.9U patent/CN204164414U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300041A (en) * | 2017-06-19 | 2017-10-27 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| CN107300041B (en) * | 2017-06-19 | 2018-12-07 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| CN116697085A (en) * | 2023-06-13 | 2023-09-05 | 五洲阀门股份有限公司 | High-tightness ball valve |
| CN116697085B (en) * | 2023-06-13 | 2024-02-27 | 五洲阀门股份有限公司 | High-tightness ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |