CN201353555Y - Liquid flow leakproof structure of spraying gun - Google Patents
Liquid flow leakproof structure of spraying gun Download PDFInfo
- Publication number
- CN201353555Y CN201353555Y CNU2009201139656U CN200920113965U CN201353555Y CN 201353555 Y CN201353555 Y CN 201353555Y CN U2009201139656 U CNU2009201139656 U CN U2009201139656U CN 200920113965 U CN200920113965 U CN 200920113965U CN 201353555 Y CN201353555 Y CN 201353555Y
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- CN
- China
- Prior art keywords
- sealing ring
- hermetically
- shank
- rifle body
- sealed construction
- 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 - Fee Related
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Abstract
The utility model relates to a liquid flow leakage structure of a spraying gun, which is positioned between a gun body and a needle bar and comprises a sealing ring sleeved on the needle bar, wherein the sealing ring is axially fixed on the gun body; the number of the sealing ring is one; the diameter of the inner hole of the sealing ring is less than the axial length of the sealing ring; the sealing ring with the monomer structural style has the convenient assembling and simple structure with the spraying gun; the sealing ring ensures the sealing property between the gun barrel and the needle bar; and the use stability of the sealing ring is good in the working process of the needle bar.
Description
Technical field
The utility model relates to a kind of liquid spray gun shank, that be used to gush out liquid that stretches out the external side of rifle that has, and relates in particular to a kind of hermetically-sealed construction that is used for liquid for plugging stream between shank and the rifle body of being located at.
Background technology
Need use liquid spray gun in a lot of fields, liquid spray gun is to be used to gush out liquid.Liquid spray gun need be pulled spanner set on the liquid spray gun when gushing out liquid, spanner drives mechanism for opening/closing, makes liquid freely erupt out.Liquid spray gun in use, the liquid that requires to be gushed out is from specific spout ejection.This just requires to need to use some hermetically-sealed constructions on liquid spray gun, to limit the flow direction of liquid.On architectural decoration, need to use expanding foam solution sometimes, after expanding foam solution is coated between the sheet material place, slit and solidifies, can block the gap between the sheet material effectively.The spraying of expanding foam solution need use a kind of foam gun, and foam gun is exactly a kind of liquid spray gun that has gun barrel and shank.Gun barrel is connected on the rifle body, and shank is axially disposed within the gun barrel, and the front end of shank cooperates with rifle mouth liquid sealing on the gun barrel, and the rear end of shank reaches the outside of rifle, and links in the spanner that is hinged on the rifle body.When pulling spanner, spanner drives shank and slides in gun barrel, and expanding foam solution is gushed out from the gap location that forms between shank and the rifle mouth.Between shank and rifle body, also hermetically-sealed construction need be set, be used to limit expanding foam solution and flow out from the gap location between shank and the rifle body.Existing sealing structure comprises several O RunddichtringOs that stack together, the diameter of bore of O RunddichtringO is greater than its axial length, these sealing rings are socketed on the shank, act on spring on shank and the O RunddichtringO respectively also being socketed with two ends on the shank, under the effect of spring, several O RunddichtringOs are resisted against on the rifle body.This hermetically-sealed construction adds spring by several O RunddichtringOs and constitutes, its complex structure, assembling inconvenience, and also along with the endwisely slipping for a long time of shank, the stability in use of this hermetically-sealed construction is also relatively poor, is prone to the leakage phenomenon of expanding foam solution.
The utility model content
The purpose of this utility model is: provide a kind of liquid spray gun liquid simple in structure, easy to assembly, that stability in use is good to flow hermetically-sealed construction.
For reaching described purpose, the technical measures that the utility model is taked: liquid spray gun liquid stream hermetically-sealed construction, between rifle body and shank, comprise the sealing ring that is socketed on the shank, sealing ring is axially fixed on the rifle body, and described sealing ring is one, and its diameter of bore is less than the axial length of sealing ring.
In this hermetically-sealed construction, the ratio of the axial length of described sealing ring and the diameter of bore of sealing ring is between 1 to 4.
In this hermetically-sealed construction, the outer peripheral face of described sealing ring is provided with the groove of annular.
In this hermetically-sealed construction, the degree of depth of described groove is greater than 1/2 sealing ring wall thickness.
In this hermetically-sealed construction, be provided be connected as a single entity with it interior to bulge loop on the rifle body, the front end of described sealing ring withstands on the trailing flank of bulge loop, and swivel nut has been threaded in the rear end of described sealing ring on the rifle body.
In this hermetically-sealed construction, the rear end of described sealing ring and the front end of swivel nut are the frustoconical that cooperatively interacts.
The utlity model has following beneficial effect:
Sealing ring by a monomer structure replaces existing several the O RunddichtringOs that stack together, and this hermetically-sealed construction is simple in structure.For the sealing ring of monomer structure, it is easy to be fixed on the rifle body, with using spring several O RunddichtringOs is realized fixedly comparing, and its property easy to assembly also is conspicuous.The axial length of sealing ring is greater than its diameter of bore, and it is a monomer structure, this makes to have bigger, all-in-one-piece sealing surface between sealing ring and the shank, and along with endwisely slipping of shank, obvious variation can not take place in the shape of sealing ring and the position on the rifle body, sealing ring can be guaranteed to the sealing effectiveness between shank and the rifle body, has improved the stability in use and the service life of sealing ring.
Description of drawings
Fig. 1 is the longitudinal sectional view that has the liquid spray gun of gun barrel and shank.
Fig. 2 is the A portion enlarged drawing among Fig. 1.
The specific embodiment
The specific embodiment of the utility model liquid spray gun liquid stream hermetically-sealed construction is seen Fig. 1 and Fig. 2.
The utility model liquid spray gun liquid stream hermetically-sealed construction is positioned on the liquid spray gun, is used to block liquid stream in order to avoid flow out from the position between rifle body and the shank.The structure of described jetting liquid comprises rifle body 1, spanner 2, gun barrel 3, shank 4, has liquid flow cavity 5 in rifle body 1, also is provided with adapter on the rifle body 1, and adapter is used to assemble receiver.
Described hermetically-sealed construction is positioned at the rear side of liquid flow cavity 5, it comprises a sealing ring 7 cylindraceous, sealing ring 7 is a monomer spare, it is by the plastics integrated injection molding, its inner shaft is to being provided with endoporus, and the diameter of this endoporus is less than its axial length, and the axial length of sealing ring 7 and the diameter ratio of its endoporus are between 1 to 4.Sealing ring 7 is socketed on the shank 4, and sealing ring 7 is axially fixed on the rifle body 1.The concrete structure of on the rifle body 1 sealing ring 7 being fixed, be on rifle body 1 in the rear side of described liquid flow cavity 5 be provided with rifle body 1 be connected as a single entity interior to bulge loop 6, near the position of described spanner 2 swivel nut 9 that has been threaded, described shank 4 passes bulge loop 6 simultaneously and swivel nut 9 backs link with spanner 2 on rifle body 1.Sealing ring 7 is between bulge loop 6 and swivel nut 9, and the front end face of sealing ring 7 is resisted against on the trailing flank of bulge loop 6, and the rear end of sealing ring 7 contacts with swivel nut 9.In order to improve sealing ring 7 stability of its radial dimension in use, frusto-pyramidal configurations for cooperatively interacting between the front end of the rear end of sealing ring 7 and swivel nut 9, the little head end of sealing ring 7 rear ends is towards swivel nut 9, frusto-pyramidal configurations on the swivel nut 9 is socketed in the rearward end of sealing ring 7, in order to hold onto sealing ring 7, change with the radial dimension that reduces shank 4 sealing ring 7 when endwisely slipping, so that have good liquid sealing between sealing ring 7 and the shank 4.By both qualification effects of bulge loop 6 and swivel nut 9, sealing ring 7 has higher axial stability on rifle body 1.
Also be provided with the annular groove 8 that caves at the medium position place of sealing ring 7 outer peripheral faces, the degree of depth of groove 8 is greater than the thickness of 1/2 sealing ring wall body.The purpose that this groove 8 is set is that the part reduces its thickness on sealing ring 7, so that sealing ring 7 is in the course of work of shank 4, sealing ring 7 can produce certain deformation quantity in thin position, and sealing ring 7 more can adapt to the action request to seal request between shank 4 and the rifle body 1 and shank 4.
Claims (6)
1, liquid spray gun liquid stream hermetically-sealed construction between rifle body and shank, comprises the sealing ring that is socketed on the shank, and sealing ring is axially fixed on the rifle body, it is characterized in that: described sealing ring is one, and its diameter of bore is less than the axial length of sealing ring.
2, hermetically-sealed construction as claimed in claim 1 is characterized in that: the ratio of the axial length of described sealing ring and the diameter of bore of sealing ring is between 1 to 4.
3, hermetically-sealed construction as claimed in claim 1 is characterized in that: the outer peripheral face of described sealing ring is provided with the groove of annular.
4, hermetically-sealed construction as claimed in claim 2 is characterized in that: the degree of depth of described groove is greater than 1/2 sealing ring wall thickness.
5, as claim 1,2,3 or 4 described hermetically-sealed constructions, it is characterized in that: on the rifle body, be provided be connected as a single entity with it interior to bulge loop, the front end of described sealing ring withstands on the trailing flank of bulge loop, and swivel nut has been threaded in the rear end of described sealing ring on the rifle body.
6, hermetically-sealed construction as claimed in claim 5 is characterized in that: the rear end of described sealing ring and the front end of swivel nut are the frustoconical that cooperatively interacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139656U CN201353555Y (en) | 2009-02-16 | 2009-02-16 | Liquid flow leakproof structure of spraying gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139656U CN201353555Y (en) | 2009-02-16 | 2009-02-16 | Liquid flow leakproof structure of spraying gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201353555Y true CN201353555Y (en) | 2009-12-02 |
Family
ID=41409896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201139656U Expired - Fee Related CN201353555Y (en) | 2009-02-16 | 2009-02-16 | Liquid flow leakproof structure of spraying gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201353555Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934258A (en) * | 2009-06-30 | 2011-01-05 | 郑英 | Liquid flow sealing structure for foaming gun |
-
2009
- 2009-02-16 CN CNU2009201139656U patent/CN201353555Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934258A (en) * | 2009-06-30 | 2011-01-05 | 郑英 | Liquid flow sealing structure for foaming gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20180216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |