CN201510965U - Needle assembly - Google Patents
Needle assembly Download PDFInfo
- Publication number
- CN201510965U CN201510965U CN 200920198100 CN200920198100U CN201510965U CN 201510965 U CN201510965 U CN 201510965U CN 200920198100 CN200920198100 CN 200920198100 CN 200920198100 U CN200920198100 U CN 200920198100U CN 201510965 U CN201510965 U CN 201510965U
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- CN
- China
- Prior art keywords
- sealing ring
- guide screw
- needle
- needle assemblies
- gland
- 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 provides a needle assembly, which comprises a needle, a guide screw, an ejector pin head assembly and a pull ring, wherein the ejector pin head assembly is installed at the head of the needle, the pull ring is installed at the tail of the needle and the needle is installed in the inner hole of the guide screw. A sealing washer and a tapered sealing ring are installed between the guide screw and the needle. The tapered sealing ring is close to the sealing washer. A sealing ring gland covers the tapered sealing ring in a pressing way. By adopting the needle assembly, since two sealing rings are formed between the guide screw and the needle, the utility model has the advantages that the leakage of jets in the jet gun is effectively avoided and the performance of the high-pressure jet gun is greatly improved.
Description
Technical field
The utility model relates to a kind of lance technology, particularly a kind of material needle assemblies with sealing device.
Background technology
The dual-purpose spray gun of high pressure is mainly used in finishing, and the spraying of emulsion paint, oil paint, woodcare paint in the decoration is the spray gun with two big advantages of aerial spraying finish coating result and airless spraying high workload efficient.Existing high-pressure spray gun generally comprises the body of a gun, nozzle, dispatch tube, spanner etc.This type of high-pressure spray gun bodily form is light and handy, easy to use, yet this type of high-pressure spray gun structurally also has weak point, and after the long-term use of high-pressure spray gun, because the material needle assemblies in the high-pressure spray gun does not have sealing device, the injection thing in the high-pressure spray gun can leak.
Therefore, in carrying out the utility model creation process, the inventor finds that there are the following problems at least in the prior art: the material needle assemblies in the existing high-pressure spray gun lacks perfect sealing device, leaks easily.
The utility model content
In view of this, the utility model embodiment has proposed a kind of material needle assemblies, can effectively prevent to spray in the rifle leakage of thing.
For solving the problems of the technologies described above, the purpose of the utility model embodiment is achieved through the following technical solutions:
The utility model provides a kind of material needle assemblies, it comprises: expect pin, guide screw, be installed in the thimble head assembly of material needle section and be installed in the draw ring of expecting Aculeata, described material pin is installed in the endoporus of described guide screw, between described guide screw and the material pin seal washer is installed, between described guide screw and the material pin tapering sealing ring is installed also, and described tapering sealing ring next-door neighbour seal washer, described tapering sealing ring is gone back gland outward the sealing ring gland.
Preferably, described seal washer is the V-type packing ring.
Preferably, described sealing ring gland also is equipped with gland outward and holds out against spring.
Preferably, described material needle set is flexible.
The material needle assemblies that provides by the utility model, the material needle assemblies that provides by above-mentioned the utility model embodiment, by between guide screw and material pin, forming the two seals ring, can effectively prevent to spray in the spray gun leakage of thing, thereby improve the performance of high-pressure spray gun greatly.
Description of drawings
Fig. 1 is the structural representation of material needle assemblies in the utility model high-pressure spray gun;
Fig. 2 is installed in the assembling schematic diagram of high-pressure spray gun for the utility model material needle assemblies.
The specific embodiment
The utility model embodiment provides a kind of material needle assemblies.Described material needle assemblies comprises: expect pin, guide screw, be installed in the thimble head assembly of material needle section and be installed in the draw ring of expecting Aculeata, described material pin is installed in the endoporus of described guide screw, between described guide screw and the material pin seal washer is installed, between described guide screw and the material pin tapering sealing ring is installed also, and described tapering sealing ring next-door neighbour seal washer, described tapering sealing ring is gone back gland outward the sealing ring gland.
Material needle assemblies by above-mentioned the utility model embodiment provides by form the two seals ring between guide screw and material pin, can effectively prevent to spray in the spray gun leakage of thing, thereby improve the performance of high-pressure spray gun greatly.
For making the technical solution of the utility model clearer, below with reference to accompanying drawing and enumerate embodiment, the utility model is further described.
See also Fig. 1, be the structural representation of material needle assemblies in the utility model high-pressure spray gun.
Described material needle assemblies comprises thimble head assembly 01, material pin 02, sealing ring gland 03, tapering sealing ring 04, seal washer 05, guide screw 06, and draw ring 07.
Described material pin 02 cylindrical needle-like.Described thimble head assembly 01 is installed in the head of material pin 02.Described draw ring 07 is installed in the afterbody of material pin 02.Described material pin 02 is installed in the endoporus of described guide screw 06.Described seal washer 05 is the V-type packing ring, be installed in described guide screw 06 and the material pin 02 between and ring set on described material pin 02.Described tapering sealing ring 04 be installed in described guide screw 06 and the material pin 02 between and ring set on described material pin 02, be close to described seal washer 05 simultaneously.Described sealing ring gland 03 ring set on the described material pin 02 and gland on described tapering sealing ring 04.
From said structure as can be seen, form two " sealing ring " in high-pressure spray gun material needle assemblies: the sealing of first road is expanded under the extruding force effect of tapering sealing ring 04 by the seal washer 05 of V-structure and is formed; The sealing of second road is formed under the extruding force effect that is subjected to sealing ring gland 03 by tapering sealing ring 04.
Please continue referring to Fig. 2, be installed in the assembling schematic diagram of high-pressure spray gun for the utility model material needle assemblies.
Wherein, the extruding force of described sealing ring gland 03 derives from the gland that is contained between rifle body and the sealing ring gland and holds out against on the spring 07.In the time will expecting that needle assemblies is packed High Pressure Gun inside into, because it is to be under the compressive state that gland holds out against spring, form an outwards active force of bounce-back, when this active force acts on the sealing ring gland 03, sealing ring gland 03 can be released in active force on the tapering sealing ring 04 again, tapering sealing ring 04 again with force transmission to the seal washer 05 of V-structure, in the time of on passing to seal washer 05, be subjected to the restriction of guide screw 06, acting on making every effort to promote on tapering sealing ring 04 and the seal washer 05 expands tapering sealing ring 04 and seal washer 05, forms twice " sealing ring " with the material pin in the endoporus of guide screw 06.
In addition, the material needle set of material in the needle assemblies is flexible, can correct and nozzle material pin hole between minor deviations.
In sum, the material needle assemblies by above-mentioned the utility model embodiment provides by form the two seals ring between guide screw and material pin, can effectively prevent to spray in the spray gun leakage of thing, thereby improve the performance of high-pressure spray gun greatly.
More than material needle assemblies that the utility model embodiment is provided be described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used to help to understand the technical scheme that the utility model discloses; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. expect needle assemblies for one kind, comprise material pin, guide screw, be installed in the thimble head assembly of material needle section and be installed in the draw ring of expecting Aculeata, described material pin is installed in the endoporus of described guide screw, it is characterized in that, between described guide screw and the material pin seal washer is installed, between described guide screw and the material pin tapering sealing ring is installed also, and described tapering sealing ring next-door neighbour seal washer, described tapering sealing ring is gone back gland outward the sealing ring gland.
2. material needle assemblies according to claim 1 is characterized in that, described seal washer is the V-type packing ring.
3. material needle assemblies according to claim 1 is characterized in that, described sealing ring gland also is equipped with gland outward and holds out against spring.
4. material needle assemblies according to claim 1 is characterized in that, described material needle set is flexible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920198100 CN201510965U (en) | 2009-10-17 | 2009-10-17 | Needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920198100 CN201510965U (en) | 2009-10-17 | 2009-10-17 | Needle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201510965U true CN201510965U (en) | 2010-06-23 |
Family
ID=42482361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920198100 Expired - Fee Related CN201510965U (en) | 2009-10-17 | 2009-10-17 | Needle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201510965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039241B (en) * | 2009-10-17 | 2012-10-03 | 浙江荣鹏气动工具有限公司 | Material needle assembly |
-
2009
- 2009-10-17 CN CN 200920198100 patent/CN201510965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039241B (en) * | 2009-10-17 | 2012-10-03 | 浙江荣鹏气动工具有限公司 | Material needle assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20161017 |