CN214945609U - Screw plug with sealing structure - Google Patents
Screw plug with sealing structure Download PDFInfo
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- CN214945609U CN214945609U CN202120916554.1U CN202120916554U CN214945609U CN 214945609 U CN214945609 U CN 214945609U CN 202120916554 U CN202120916554 U CN 202120916554U CN 214945609 U CN214945609 U CN 214945609U
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- plug screw
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Abstract
The utility model provides a take seal structure's plug screw, including plug screw head and the plug screw pole of setting in plug screw head one side, the plug screw pole includes screw thread section and seal segment, and the seal segment inlays and is equipped with the sealing washer, and the sealing washer is contradicted towards a side surface of plug screw pole with the plug screw head, and the sealing washer is equipped with first anti-moving structure and second anti-moving structure respectively with the surface of seal segment and plug screw head, and the diameter of sealing washer is greater than the diameter of seal segment. The screw plug can limit the position of the sealing ring, and the sealing performance after installation or screwing is guaranteed.
Description
Technical Field
The utility model relates to a wind-powered electricity generation bearing part field, concretely relates to take seal structure's plug screw.
Background
The wind power bearing is a special bearing, the use environment is severe, the maintenance cost is high, and the service life is required to be long. The screw plug refers to a part which is connected through threads to prevent liquid leakage, is commonly used on wind power bearings, and the threads can be standard threads or pipe threads.
The traditional screw plug generally plays a role in sealing through threads, but only seals through the threads, so that the sealing effect is insufficient in the field of wind power bearings. If the sealing ring is added to increase the sealing effect, after the screw plug is screwed to fix the sealing ring, the screw plug only limits the position of the sealing ring by pressure, and the sealing ring and the screw plug are easy to move relatively, so that the situation that the sealing effect is not ideal is caused.
Disclosure of Invention
In order to overcome not enough among the prior art, the utility model provides a take seal structure's plug screw, its position to the sealing washer has the restriction, avoids producing relative movement between sealing washer and the plug screw, guarantees the plug screw installation back, and is sealed effectual.
In order to realize the above-mentioned purpose, the utility model discloses a take seal structure's plug screw, including the plug screw head with set up the plug screw pole in plug screw head one side, the plug screw pole includes screw thread section and seal segment, the seal segment inlays and is equipped with the sealing washer, the sealing washer is contradicted towards a side surface of plug screw pole with the plug screw head, the sealing washer is equipped with first anti-moving structure and second respectively with the surface of seal segment and plug screw head and prevents moving the structure, the diameter of sealing washer is greater than the diameter of seal segment.
Further, first anti-moving structure includes the round seal groove that sets up along seal section circumference, and the cross sectional shape of seal groove along the axis direction of plug screw rod is "protruding" font, and the sealing washer cross sectional shape is "protruding" font, and the sealing washer inlay card is equipped with two at least locking nails in the seal groove, and the locking nail is worn in the sealing washer.
Further, the structure is prevented moving by the second compresses tightly the bump including setting up two rings on the plug screw head towards plug screw rod side surface, and two rings compress tightly the bump and all have a plurality of, and every ring compresses tightly the bump, and each compresses tightly the bump equidistance setting, and two rings compress tightly the diameter one big one little of bump, and two rings compress tightly the bump and are the concentric circles setting along the axis of plug screw rod, and two rings compress tightly the bump and all contradict with the sealing washer.
Furthermore, the pressing salient points are hemispherical.
Further, the number of the stop nails is 4, and each stop nail is provided with a barb.
Has the advantages that: the first anti-moving structure and the second anti-moving structure are arranged on the sealing ring, so that the sealing ring is limited no matter when the plug screw is rotated or after the plug screw is installed, and the sealing property between the sealing ring and the plug screw is ensured.
Drawings
The invention will be further described and illustrated with reference to the accompanying drawings.
Fig. 1 is an overall schematic structural view of a preferred embodiment of the present invention.
Reference numerals: 1. a screw plug head; 2. a screw rod; 3. a threaded segment; 4. a sealing section; 5. a seal ring; 6. a sealing groove; 7. a stop pin; 8. and pressing the salient points.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a take seal structure's plug screw of preferred embodiment, including plug screw head 1, plug screw pole 2 sets up on the surface of one of them side of plug screw head 1, and plug screw pole 2 includes screw thread section 3 and seal segment 4, and plug screw head 1, seal segment 4, screw thread section 3 set gradually from last to down.
The sealing ring 5 is embedded in the position of the sealing section 4, and in order to avoid the situation that the sealing ring 5 is easy to move relative to the screw plug after the screw plug is screwed or installed, a first anti-moving structure and a second anti-moving structure are respectively arranged on the sealing section 4 and one side surface of the screw plug head 1 facing the screw plug rod 2 and are used for limiting the sealing ring 5.
The first anti-moving structure comprises a sealing groove 6 which is arranged at the position of the sealing section 4 in a circle, the sealing groove 6 is arranged in a circle along the axis of the screw plug rod 2, the cross section of the sealing groove 6 in the axis direction of the screw plug rod 2 is in a convex shape, the cross section of the sealing groove 6 in the axis direction of the screw plug rod 2 is also in a convex shape, and the sealing ring 5 is embedded in the sealing groove 6 in a clamping mode.
At least two stop pins 7 are arranged in the seal groove 6 along the axial direction of the screw plug rod 2, and the stop pins 7 penetrate through the seal ring 5. The preferred 4 locking nails 7 in this embodiment, 4 locking nails 7 set up along the axis equidistance of plug rod 2, and locking nail 7 has restricted sealing washer 5 and has rotated along the axis of plug rod 2, and simultaneously, is equipped with the barb on the surface of locking nail 7, and locking nail 7 alternates back in sealing washer 5, is restricted sealing washer 5 and locking nail 7 by the barb and breaks away from each other.
The diameter of the entire seal ring 5 is larger than that of the plug rod 2, so that the surface of the plug head 1 facing the plug rod 2 abuts against the seal ring 5.
The second is prevented moving the structure and is compressed tightly bump 8 including setting up two circles on 1 orientation 2 side surfaces of plug screw, and every circle compresses tightly bump 8 and equidistance setting that a plurality of compresses tightly bump 8 in total, and two circles compress tightly bump 8's diameter one big or little, all are the concentric circles setting along the axis of plug screw 2. After the screw plug is installed, the two rings of pressing salient points 8 are pressed on the surface of the sealing ring 5, the pressing salient points 8 reduce the stress area, increase the pressure of the screw plug head 1 to the sealing ring 5, and further achieve the purpose of limiting the position of the sealing ring 5.
Compress tightly bump 8 and be the hemisphere, be difficult for crushing the surface of sealing washer 5 under the effect of pressure, guarantee the integrality on sealing washer 5 surface.
The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.
Claims (5)
1. The utility model provides a take seal structure's plug screw, includes the plug screw head and sets up the plug screw rod in plug screw head one side, its characterized in that, the plug screw rod includes screw thread section and sealing segment, the sealing segment inlays and is equipped with the sealing washer, the sealing washer is contradicted with the plug screw head towards a side surface of plug screw rod, the sealing washer is equipped with first anti-moving structure and second respectively with the surface of sealing segment and plug screw head and prevents moving the structure, the diameter of sealing washer is greater than the diameter of sealing segment.
2. The screw plug with the sealing structure according to claim 1, wherein the first anti-movement structure includes a circle of sealing groove circumferentially disposed along the sealing section, the cross-sectional shape of the sealing groove along the axial direction of the screw plug rod is "convex", the cross-sectional shape of the sealing ring is "convex", the sealing ring is embedded in the sealing groove, at least two stop nails are disposed in the sealing groove, and the stop nails penetrate through the sealing ring.
3. The screw plug with the sealing structure according to claim 1, wherein the second anti-moving structure comprises two rings of pressing protrusions arranged on one side surface of the screw plug head facing the screw plug rod, the pressing protrusions comprise a plurality of pressing protrusions, each pressing protrusion comprises an equal distance between the pressing protrusions, the pressing protrusions comprise a large diameter and a small diameter, the pressing protrusions comprise two rings of concentric circles along the axis of the screw plug rod, and the pressing protrusions are abutted against the sealing rings.
4. The plug screw with sealing structure according to claim 3, wherein said pressing protrusion is hemispherical.
5. The screw plug with sealing structure according to claim 2, wherein the number of the retaining nails is 4, and each retaining nail is provided with a barb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120916554.1U CN214945609U (en) | 2021-04-29 | 2021-04-29 | Screw plug with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120916554.1U CN214945609U (en) | 2021-04-29 | 2021-04-29 | Screw plug with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945609U true CN214945609U (en) | 2021-11-30 |
Family
ID=79065302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120916554.1U Active CN214945609U (en) | 2021-04-29 | 2021-04-29 | Screw plug with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945609U (en) |
-
2021
- 2021-04-29 CN CN202120916554.1U patent/CN214945609U/en active Active
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| GR01 | Patent grant | ||
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