CN201547287U - Female connection soft-sealing gate valve - Google Patents
Female connection soft-sealing gate valve Download PDFInfo
- Publication number
- CN201547287U CN201547287U CN2009200874626U CN200920087462U CN201547287U CN 201547287 U CN201547287 U CN 201547287U CN 2009200874626 U CN2009200874626 U CN 2009200874626U CN 200920087462 U CN200920087462 U CN 200920087462U CN 201547287 U CN201547287 U CN 201547287U
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- valve
- sealing
- valve body
- internal thread
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Abstract
The utility model discloses a female connection soft-sealing gate valve, which comprises a valve body, a valve cover and a valve shaft. Pipeline female threads are arranged on a water inlet pipe section and a water outlet pipe section of the valve body; the valve body is connected with the valve cover through threads; the valve shaft penetrates through the valve body and the valve cover; sealing parts are arranged at the tail ends of pipeline female threads of the water inlet pipe section and the water outlet pipe section of the valve body; and a sealing part is arranged at the thread connection position of the valve body and the valve cover. As the sealing parts are additionally arranged at the female thread positions for connecting the valve body and a pipeline, when the pipeline is inserted into the valve body, the sealing part is deformed because of extrusion, and the female thread positions for connecting the valve body and the pipeline are sealed to avoid rusting at the thread connections. The sealing part is additionally arranged at the thread connection position between the valve body and the valve cover, when the valve cover is screwed into the valve body, the sealing part is deformed because of extrusion, the thread connection position is sealed to avoid rusting at the thread connection position, thereby avoiding pollution of rusting to water quality.
Description
Technical field
The utility model relates to gate valve, particularly relates to a kind of internal thread and connects soft sealing gate valve.
Background technique
Between the valve body that in the market internal thread connects soft sealing gate valve and the valve gap, all adopt between valve body and the pipeline and be threaded, the spraying measure is inconvenient to take in the position that is threaded, and for a long time through water slug, just can produce corrosion, thus polluted water.
The model utility content
The purpose of this utility model is in order to overcome the deficiency of above-mentioned background technology, to provide a kind of internal thread of environmental protection to connect soft sealing gate valve.
The internal thread that the utility model provides connects soft sealing gate valve, comprises valve body, valve gap and valve shaft, and the water inlet segment of valve body and water outlet pipeline section are provided with the pipeline internal thread, and valve body is threaded with valve gap, and valve shaft passes valve body and valve gap; The pipeline female ends of valve inleting water pipeline section and water outlet pipeline section is provided with Sealing, and the threaded connection place of valve body and valve gap is provided with Sealing.
In technique scheme, the junction of valve shaft and valve gap is provided with softwood matter stuffing box gland, and softwood matter stuffing box gland is preferably rubber sealing boot, and the cross section of rubber sealing boot is circular.
In technique scheme, the pipeline female ends of water inlet segment and water outlet pipeline section is established seal groove, is provided with Sealing in the seal groove, and the sealing surface of sealing double thread seals.
In technique scheme, softwood matter stuffing box gland comprises the valve stem seal section, and the valve stem seal section is provided with the hydraulic pressure expansion slot, and the valve stem seal section is divided into the bowl that expands, and the bowl end face that expands is established the hydraulic pressure expansion slot.
In technique scheme, the effective diameter of thread equal in length of the internal diameter of Sealing and valve body, Sealing is preferably rubber seal, and the section of rubber seal is a rectangle, and cross section is circular.
Compared with prior art, the internal thread that the utility model provides connects soft sealing gate valve, its valve body two ends are internal thread, because valve body has additional 1 Sealing with the internal thread place that the pipeline of water inlet segment and water outlet pipeline section is connected, in the time of in pipeline inserts valve body, Sealing produces deformation because of being extruded, and forms sealing at the internal thread place that valve body is connected with pipeline, avoid the threaded connection place to get rusty, thus the pollution of avoiding corrosion that water quality is produced; Valve body is connected with the regular screw threads that are connected between the valve gap, this threaded connection place also has additional 1 Sealing, in the time of in valve gap is screwed into valve body, Sealing produces deformation because of being extruded, form sealing in this threaded connection place, avoid the threaded connection place to get rusty, thus the pollution of avoiding corrosion that water quality is produced; The junction of valve shaft and valve gap also has additional 1 sealability softwood matter stuffing box gland preferably, valve stem seal section in the softwood matter stuffing box gland is divided into the bowl that expands, the bowl end face that expands is established the hydraulic pressure expansion slot, the effect of hydraulic pressure makes its distending, valve shaft is held tightly, form selfsealings, make the sealability of internal thread connection soft sealing gate valve better.
Description of drawings
Fig. 1 connects the structural representation of soft sealing gate valve for the utility model internal thread;
Fig. 2 is the structural representation of rubber sealing boot.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model.
Referring to shown in Figure 1, the internal thread that the utility model provides connects soft sealing gate valve and comprises valve body 1, valve gap 5 and valve shaft 6, valve shaft 6 passes valve body 1 and valve gap 5, the water inlet segment of valve body 1 and water outlet pipeline section two ends are provided with the pipeline internal thread, the pipeline female ends is established seal groove, be provided with Sealing 2 in the seal groove, Sealing 2 sealing surface double threads seal.Valve body 1 is connected with valve gap 5 regular screw threads, is provided with teflin ring between valve body 1 and the valve gap 5, and valve body 1 also is provided with Sealing 3 with the threaded connection place of valve gap 5.The internal diameter of Sealing 2,3 and the effective diameter of thread equal in length of valve body 1, Sealing 2,3 is preferably rubber seal, and its section can be rectangle, also can be for square, cross section is circular.Valve gap 5 is provided with softwood matter stuffing box gland 4 with the junction of valve shaft 6, and softwood matter stuffing box gland 4 comprises valve stem seal section 7, and valve stem seal section 7 is provided with hydraulic pressure expansion slot 8, and valve stem seal section 7 is divided into the bowl 9 that expands, and bowl 9 end faces that expand are established hydraulic pressure expansion slot 10.Softwood matter stuffing box gland 4 is preferably rubber sealing boot, and its cross section is circular, referring to shown in Figure 2.
Working principle of the present utility model is as follows: in the time of in pipeline inserts valve body 1, the Sealing 2 of the pipeline female ends setting of valve body 1 water inlet segment and water outlet pipeline section produces deformation because of being extruded, form sealing at the internal thread place that valve body 1 is connected with pipeline, avoid the threaded connection place to get rusty, thus the pollution of avoiding corrosion that water quality is produced; In the time of in valve gap 5 is screwed into valve body 1, valve gap 5 screws with valve body 1 screw thread, valve body 1 produces deformation with the Sealing 3 that valve gap 5 threaded connection places are provided with because of being extruded, in the threaded connection place formation sealing of valve gap 5 with valve body 1, avoid the threaded connection place to get rusty, thus the pollution of avoiding corrosion that water quality is produced; Valve shaft 6 also has additional 1 sealability softwood matter stuffing box gland 4 preferably with the junction of valve gap 5, by valve shaft 6 pack into copper backing, back-up ring, softwood matter stuffing box gland 4, because of the external diameter of the relative valve shaft 6 of internal diameter of softwood matter stuffing box gland 4 less, softwood matter stuffing box gland 4 has certain decrement, thereby form sealing, and the effect of hydraulic pressure also makes its bowl 9 distendings that expand, hydraulic pressure expansion slot 8 is held valve shaft 6 tightly, hydraulic pressure expansion slot 10 is adjacent to valve gap 5, form selfsealings, make the sealability of internal thread connection soft sealing gate valve better.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.The content that is not described in detail in this specification belongs to related domain professional and technical personnel's known prior art.
Claims (9)
1. an internal thread connects soft sealing gate valve, comprise valve body (1), valve gap (5) and valve shaft (6), the water inlet segment and the water outlet pipeline section of described valve body (1) are provided with the pipeline internal thread, and valve body (1) is threaded with valve gap (5), and valve shaft (6) passes valve body (1) and valve gap (5); It is characterized in that: the pipeline female ends of described valve body (1) water inlet segment and water outlet pipeline section is provided with Sealing (2), and described valve body (1) is provided with Sealing (3) with the threaded connection place of valve gap (5).
2. internal thread as claimed in claim 1 connects soft sealing gate valve, it is characterized in that: described valve shaft (6) is provided with softwood matter stuffing box gland (4) with the junction of valve gap (5).
3. internal thread as claimed in claim 1 connects soft sealing gate valve, and it is characterized in that: the pipeline female ends of water inlet segment and water outlet pipeline section is established seal groove, is provided with Sealing (2) in the seal groove, and Sealing (2) sealing surface double thread seals.
4. internal thread as claimed in claim 2 connects soft sealing gate valve, it is characterized in that: softwood matter stuffing box gland (4) comprises valve stem seal section (7), valve stem seal section (7) is provided with hydraulic pressure expansion slot (8), valve stem seal section (7) is divided into the bowl (9) that expands, and bowl (9) end face that expands is established hydraulic pressure expansion slot (10).
5. internal thread as claimed in claim 1 connects soft sealing gate valve, it is characterized in that: the internal diameter of described Sealing (2,3) and the effective diameter of thread equal in length of described valve body (1).
6. connect soft sealing gate valve as each described internal thread of claim 1 to 5, it is characterized in that: described Sealing (2,3) is rubber seal.
7. internal thread as claimed in claim 6 connects soft sealing gate valve, and it is characterized in that: the section of described rubber seal is a rectangle, and cross section is circular.
8. internal thread as claimed in claim 1 connects soft sealing gate valve, and it is characterized in that: described softwood matter stuffing box gland (4) is a rubber sealing boot.
9. internal thread as claimed in claim 8 connects soft sealing gate valve, it is characterized in that: the cross section of described rubber sealing boot is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200874626U CN201547287U (en) | 2009-07-21 | 2009-07-21 | Female connection soft-sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200874626U CN201547287U (en) | 2009-07-21 | 2009-07-21 | Female connection soft-sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547287U true CN201547287U (en) | 2010-08-11 |
Family
ID=42602460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200874626U Expired - Lifetime CN201547287U (en) | 2009-07-21 | 2009-07-21 | Female connection soft-sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975283A (en) * | 2010-11-01 | 2011-02-16 | 安徽红星阀门有限公司 | Thread soft seal PP-R double pipe flexible gate valve |
| CN108999973A (en) * | 2018-10-11 | 2018-12-14 | 浙江大工阀门驱动有限公司 | A kind of sealing device of threaded connection |
-
2009
- 2009-07-21 CN CN2009200874626U patent/CN201547287U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975283A (en) * | 2010-11-01 | 2011-02-16 | 安徽红星阀门有限公司 | Thread soft seal PP-R double pipe flexible gate valve |
| CN108999973A (en) * | 2018-10-11 | 2018-12-14 | 浙江大工阀门驱动有限公司 | A kind of sealing device of threaded connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUHAN DAYU VALVE CO., LTD. Free format text: FORMER NAME: WUHAN DAYU VALVE MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 430056 Hubei city of Wuhan province Wuhan economic and Technological Development Zone Science and Technology Industrial Park Yang Dun Patentee after: Wuhan Dayu Valve Co., Ltd. Address before: 430056 Hubei city of Wuhan province Zhuankou Wuhan economic and Technological Development Zone Science and Technology Industrial Park Wuhan Dun Yang Yu Valve Manufacturing Co. Ltd Patentee before: Wuhan Dayu Valve Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |