CN201604078U - Spray gun head of ductile iron pipe inner wall shot blasting machine - Google Patents
Spray gun head of ductile iron pipe inner wall shot blasting machine Download PDFInfo
- Publication number
- CN201604078U CN201604078U CN2009202796528U CN200920279652U CN201604078U CN 201604078 U CN201604078 U CN 201604078U CN 2009202796528 U CN2009202796528 U CN 2009202796528U CN 200920279652 U CN200920279652 U CN 200920279652U CN 201604078 U CN201604078 U CN 201604078U
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- CN
- China
- Prior art keywords
- pipe
- metal outer
- outer pipe
- spray gun
- airduct
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- Expired - Lifetime
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model relates to a spray gun head of a ductile iron pipe inner wall shot blasting machine, which comprises an air pipe and spray gun pipes. The air pipe is provided with a central air duct, high pressure gas and quartz sands are arranged inside the central air duct, the front end of the air pipe is sealed, and a plurality of threaded holes are arranged on a cylindrical face of the front end; each spray gun pipe comprises a metal outer pipe and an abrasion resistant inner pipe, the front end of the metal outer pipe is provided with an inward convex shoulder, radial size of the convex shoulder is matched with wall thickness of the abrasion resistant inner pipe, when the abrasion resistant inner pipe is inserted into an inner hole of the metal outer pipe, the front end of the abrasion resistant inner pipe is abutted onto the front end convex shoulder of the metal outer pipe while the rear end is leveled with the rear end of the metal outer pipe, and the rear end of the metal outer pipe is provided with external threads; and the spray gun pipes are one-to-one correspondingly fixed with the threaded holes of the air pipe in a sealed manner via external threads of the spray gun pipe. The spray gun head has the advantages of simple structure, abrasion resistance, long service life, and low cost and labor intensity of workers.
Description
Technical field
The utility model relates to a kind of lance head of ductile iron pipe inner wall shot-blasting machine.
Background technology
The lance head of ductile iron pipe inner wall shot-blasting machine is made of steel pipe at present.Because air pressure height during sandblast, quartz sand size is big, jet velocity is high, wearing and tearing to lance tube are severe especially, cause ductile iron pipe of every ball blast need change lance tube 3-4 time, replacing lance tube complexity, production efficiency reduces, and must notice constantly whether lance tube is worn out, increased labor strength, the equipment use cost is higher.
Summary of the invention:
In order to overcome the shortcoming of prior art, the utility model provides a kind of lance head of ductile iron pipe inner wall shot-blasting machine, and it is simple in structure, and is wear-resistant, long service life, and cost is low, and labor strength is low.
The technical scheme in the invention for solving the technical problem is: it comprises airduct and lance tube, and described airduct has the air channel, center, and gases at high pressure and quartz sand are arranged in the air channel, center, and the forward end seal of airduct has a plurality of screwed holes on the face of cylinder of this end; Described lance tube comprises metal outer pipe and wear-resisting interior pipe, the front end of metal outer pipe has inside convex shoulder, the wall thickness of the radial dimension of convex shoulder and described wear-resisting interior pipe is suitable, pipe embeds in the endoporus of metal outer pipe in wear-resisting, front end withstands on the front end convex shoulder of described metal outer pipe, the rear end is concordant with the rear end of metal outer pipe, and there is external screw thread the rear end of metal outer pipe; Described lance tube is by the corresponding one by one sealing and fixing of screwed hole of external screw thread with the described airduct of metal outer pipe.
The angle of the axis of described airduct upper screwed hole and airduct axis is the 80-110 degree.
Screwed hole on the described airduct is uniform, and the axis of all screwed holes is on a cross section.
The quantity of described airduct upper screwed hole is 2-8.
The material of described wear-resisting interior pipe is pottery, cast iron, powder metallurgy, nylon or plastics.
The utlity model has following advantage: 1, simple in structure durable, it is convenient to change; 2, cost is low, and fault rate is low, and installation and maintenance are easy and convenient, has value for applications preferably; 3, realized continuous production; 4, workman's work is low by force, the efficiency height.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model cutaway view;
Fig. 2 is the utility model lance tube cutaway view.
The specific embodiment
As shown in Figure 1, the utility model comprises airduct 1 and lance tube 3.Described airduct 1 has air channel, center 2, and gases at high pressure and quartz sand are arranged in the air channel, center 2.The forward end seal of airduct 1, uniform six screwed holes on the face of cylinder of this end, the axis of all screwed holes is on a cross section.The angle of the axis of described airduct 1 upper screwed hole and airduct 1 axis is 90 degree.
Described lance tube 3 comprises metal outer pipe 5 and wear-resisting interior pipe 6, and the front end of metal outer pipe 5 has inside convex shoulder 8, and the radial dimension of convex shoulder 8 is identical with the wall thickness of described wear-resisting interior pipe 6.Pipe 6 embeds in the endoporus of metal outer pipe 5 in wear-resisting, and front end withstands on the front end convex shoulder 8 of described metal outer pipe 5, and the rear end is concordant with the rear end of metal outer pipe 5.There is external screw thread 4 rear end of metal outer pipe 5.The external screw thread 4 of described six lance tubes 3 by metal outer pipe 5 respectively with six screwed hole sealing and fixing of described airduct 1.The material of described wear-resisting interior pipe 6 is pottery, cast iron, powder metallurgy, nylon or plastics.
The utility model does not limit to the inwall shot-blasting machine that is used for ductile iron pipe to be used.
Claims (5)
1. the lance head of a ductile iron pipe inner wall shot-blasting machine, it is characterized in that: it comprises airduct (1) and lance tube (3), described airduct (1) has air channel, center (2), there are gases at high pressure and quartz sand in the air channel, center in (2), the forward end seal of airduct (1) has a plurality of screwed holes on the face of cylinder of this end; Described lance tube (3) comprises metal outer pipe (5) and wear-resisting interior pipe (6), the front end of metal outer pipe (5) has inside convex shoulder (8), the wall thickness of the radial dimension of convex shoulder (8) and described wear-resisting interior pipe (6) is suitable, pipe (6) embeds in the endoporus of metal outer pipe (5) in wear-resisting, front end withstands on the front end convex shoulder (8) of described metal outer pipe (5), the rear end is concordant with the rear end of metal outer pipe (5), and there is external screw thread (4) rear end of metal outer pipe (5); Described lance tube (3) is by the corresponding one by one sealing and fixing of screwed hole of external screw thread (4) with the described airduct (1) of metal outer pipe (5).
2. the lance head of ductile iron pipe inner wall shot-blasting machine according to claim 1, it is characterized in that: the angle of the axis of described airduct (1) upper screwed hole and airduct (1) axis is the 80-110 degree.
3. the lance head of ductile iron pipe inner wall shot-blasting machine according to claim 1, it is characterized in that: the screwed hole on the described airduct (1) is uniform, and the axis of all screwed holes (1) is on a cross section.
4. the lance head of ductile iron pipe inner wall shot-blasting machine according to claim 1 is characterized in that: the quantity of described airduct (1) upper screwed hole is 2-8.
5. the lance head of ductile iron pipe inner wall shot-blasting machine according to claim 1 is characterized in that: described wear-resisting in the material of pipe (6) be pottery, cast iron, powder metallurgy, nylon or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202796528U CN201604078U (en) | 2009-11-07 | 2009-11-07 | Spray gun head of ductile iron pipe inner wall shot blasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202796528U CN201604078U (en) | 2009-11-07 | 2009-11-07 | Spray gun head of ductile iron pipe inner wall shot blasting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201604078U true CN201604078U (en) | 2010-10-13 |
Family
ID=42948787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202796528U Expired - Lifetime CN201604078U (en) | 2009-11-07 | 2009-11-07 | Spray gun head of ductile iron pipe inner wall shot blasting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201604078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791784B (en) * | 2009-11-07 | 2011-10-19 | 新兴铸管股份有限公司 | Spray gun head of ductile iron pipe inner wall shot-blasting machine |
-
2009
- 2009-11-07 CN CN2009202796528U patent/CN201604078U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791784B (en) * | 2009-11-07 | 2011-10-19 | 新兴铸管股份有限公司 | Spray gun head of ductile iron pipe inner wall shot-blasting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101013 Effective date of abandoning: 20091107 |