CN2762979Y - Pure water cutting head of water knife equipment - Google Patents
Pure water cutting head of water knife equipment Download PDFInfo
- Publication number
- CN2762979Y CN2762979Y CN 200420109400 CN200420109400U CN2762979Y CN 2762979 Y CN2762979 Y CN 2762979Y CN 200420109400 CN200420109400 CN 200420109400 CN 200420109400 U CN200420109400 U CN 200420109400U CN 2762979 Y CN2762979 Y CN 2762979Y
- Authority
- CN
- China
- Prior art keywords
- valve
- needle
- valve body
- high pressure
- cutting head
- 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 - Lifetime
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Abstract
The utility model discloses a pure water cutting head of a water knife apparatus, which comprises a valve body (2) and an outer high-voltage tube (10), wherein one end of the outer high-pressure tube (10) is connected with internal threads in a connecting hole of the valve body (2) through external threads, and the other end is provided with a jewel nozzle which is fixed by a screw nut (11). The utility model is characterized in that the outer high-voltage tube (10) stretches into one end of the valve body and is butted with a valve pad (9) which is installed in the valve body (2), the center of the valve pad (9) is provided with a needle hole (12) which is communicated with the outer high-pressure tube (10), and a valve needle (6) is installed in a valve cavity (13). One end of the valve needle (6), which has a conical surface, is matched with the needle hole (12), and the other end is in contact with a cylinder push rod after penetrating through the valve cavity (13). One side of the valve body (2) is provided with a water inlet (14) which is communicated with the valve cavity (13), a bearing pad (5) is installed on the valve cavity (13) on the top of the water inlet (14), and a seal assembly (15) is installed on the top of the bearing pad (5) which, together with the seal assembly (15), is sheathed on the valve needle (6).
Description
Technical field
The utility model relates to a kind of water knife device parts, specifically a kind of water knife device clear water cutting head.
Background technology
All water cutter cutting heads are and add sand formula cutting head at present, owing to there is not special-purpose clear water cutting head, therefore need general employing of occasion with the clear water cutting head to add sand formula cutting head and substitute at some, and when adding sand formula cutting head and replace the clear water cutting head, not only its cutting accuracy is difficult to guarantee, and damage cutting head easily, and influence its service life, meet the need of market so press for a kind of clear water cutting head of special use.
Summary of the invention
The purpose of this utility model is a kind of water knife device clear water cutting head that cuts time use for clear water of design.
The technical solution of the utility model is:
A kind of water knife device clear water cutting head, comprise valve body 2, high pressure outer tube 10, one end of high pressure outer tube 10 links to each other with internal thread in valve body 2 connecting holes by external screw thread, the other end is equipped with jewel nozzles, jewel nozzles is fixing by nut 11, it is characterized in that the end that high pressure outer tube 10 stretches in the valve body 2 offsets with the valve pad 9 that is installed in the valve body 2, the center of valve pad 9 is provided with a pin hole 12 that communicates with high pressure outer tube 10, needle 6 is installed in the valve pocket 13, one end of its band conical surface matches with pin hole 12, and the other end passes valve pocket 13 and contacts with ejecting rod of cylinder; Side at valve body 2 has the water inlet 14 that communicates with valve pocket 13, in the valve pocket 13 above water inlet 14 support pads 5 is installed, and the top of support pads 5 is equipped with black box 15, and support pads 5 and black box 15 all are sleeved on the needle 6.
The utility model has also been taked following technical measures:
Black box 15 can be made up of O type circle 7, high-pressure seal ring 4, high pressure sealing pad 3, O type circle 7 is installed in the annular groove of high-pressure seal ring 4, the arc-shaped concave of the arc convex of high-pressure seal ring 4 and high pressure sealing pad 3 offsets, and the other end of high pressure sealing pad 3 offsets with the bottom surface that is installed in the push rod fairlead 1 in valve body 2 upper ends.
In the valve pocket 13 of water inlet 14 bottoms needle fairlead 8 is installed, needle 6 passes needle fairlead 8 and matches with pin hole 12 under its guiding.
In order to prolong the life-span of black box 14, needle 6 contacts surface roughness Ra partly with black box 14 should be smaller or equal to 0.2 μ m.
The beneficial effects of the utility model:
1, fills up the market vacancy, satisfied user's demand.
2, sealing effectiveness is reliable and stable, and high-pressure seal ring has automatic compensation function, can guarantee that prolong its service time greatly.
3, high safety: under the situation of boiling water switch (cylinder that promptly connects push rod is failure to actuate) not, water under high pressure can be enclosed among the valve body always, guarantees the safety of operator and workpiece.
4, simple in structure, installation, dismounting and replacing consumable accessory are very convenient.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
A kind of water knife device clear water cutting head, comprise valve body 2, high pressure outer tube 10, one end of high pressure outer tube 10 links to each other with internal thread in valve body 2 connecting holes by external screw thread, the other end is equipped with jewel nozzles, jewel nozzles is fixing by nut 11, the end that high pressure outer tube 10 stretches in the valve body 2 offsets with the valve pad 9 that is installed in the valve body 2, and under tight condition, automatically valve pad 9 is compressed and is fixed in the valve pocket 13, the center of valve pad 9 is provided with a pin hole 12 that communicates with high pressure outer tube 10, needle 6 is installed in the valve pocket 13, one end of its band conical surface matches with pin hole 12, and the other end passes valve pocket 13 and contacts with ejecting rod of cylinder; Side at valve body 2 has the water inlet 14 that communicates with valve pocket 13, in the valve pocket 13 above water inlet 14 support pads 5 is installed, and the top of support pads 5 is equipped with black box 15, and support pads 5 and black box 15 all are sleeved on the needle 6.Black box 15 can be made up of O type circle 7, high-pressure seal ring 4, high pressure sealing pad 3, O type circle 7 is installed in the annular groove of high-pressure seal ring 4, the arc-shaped concave of the arc convex of high-pressure seal ring 4 and high pressure sealing pad 3 offsets, and the other end of high pressure sealing pad 3 offsets with the bottom surface that is installed in the push rod fairlead 1 in valve body 2 upper ends.In the valve pocket 13 of water inlet 14 bottoms, needle fairlead 8 is installed, the center that needle 6 passes needle fairlead 8 and its cone point of assurance is aimed at pin hole 12 all the time under its guiding prevents it because be subjected to the effect of hydraulic pressure to depart from pin hole 12 and can't play sealing function.
In addition, in order to prolong the life-span of black box 14, needle 6 contacts surface roughness Ra partly with black box 14 should be smaller or equal to 0.2 μ m.
The course of work of the present utility model is:
As shown in Figure 1, high-pressure water enters the valve pocket 13 from water inlet 14, water inlet 14 tops are support pads 5, support pads 5 tops are high-pressure sealing components 15,4 of high-pressure seal rings in 5 pairs of high-pressure sealing components 15 of support pads support and positioning action, when water under high pressure when water inlet 14 enters, under the effect of hydraulic pressure, O type circle 7 deforms, fit into the horizontal high voltage sealing with the endoporus of the valve pocket 13 of valve body 2, the sealing of black box 15 and the needle 6 then cylindrical by needle 6 cooperates with the endoporus of high-pressure seal ring 4 and finishes, the Roughness Surface on Control of needle 6 cylindricals is below 0.2 μ m, can reduce the wearing and tearing of high-pressure seal ring 4 like this, high-pressure seal ring 4 compresses with high pressure sealing pad 3 under the effect of hydraulic pressure as far as possible, two disc mutual extrusion, the radial component that produces makes high-pressure seal ring 4 tightr with cooperating of needle 6, so also can compensate the fit clearance that causes because of the sealing member material loss automatically, loses efficacy up to sealing ring.Valve pad 9 is installed in the valve body 2, when high pressure outer tube 10 is tightened, the upper and lower surface of valve pad 9 seals with valve body 2 and high pressure outer tube 10 respectively, the lower end of needle 6 is withstood under the effect of cylinder (not drawing) medi-spring in the pin hole 12 on the valve pad 9 tightly, ejecting rod of cylinder (not drawing) fairlead 1 is installed on the top of valve body 2, when preventing that push rod from depressing not just, the lower end conical surface of needle 6 and the cylindrical end face of the pin hole 12 in the valve pad 9 fit into the sealing of horizontal high voltage water, high-pressure water just is enclosed among the valve body 2 like this, fairlead 8 plays the correcting effect, prevent needle when pressing down and pin hole 12 decentraction of valve pad 9, part of damage.When cylinder (not drawing) adds the compression air, spring in the cylinder is compressed air compaction, needle 6 is released, this moment is under the effect of hydraulic pressure, pin is lifted, and water under high pressure enters in the high pressure outer tube 10 by the pin hole 12 of valve pad 9, at the front end of high pressure outer tube 10 jewel nozzles (not drawing) is installed, water under high pressure forms the water arrow by jewel nozzles and carries out the clear water cutting, and jewel nozzles is compressed by nut 11.
Claims (4)
1, a kind of water knife device clear water cutting head, comprise valve body (2), high pressure outer tube (10), one end of high pressure outer tube (10) links to each other with internal thread in valve body (2) connecting hole by external screw thread, the other end is equipped with jewel nozzles, jewel nozzles is fixing by nut (11), it is characterized in that the end that high pressure outer tube (10) stretches in the valve body (2) offsets with the valve pad (9) that is installed in the valve body (2), the center of valve pad (9) is provided with a pin hole (12) that communicates with high pressure outer tube (10), needle (6) is installed in the valve pocket (13), one end of its band conical surface matches with pin hole (12), and the other end passes valve pocket (13) and contacts with ejecting rod of cylinder; Side at valve body (2) has the water inlet (14) that communicates with valve pocket (13), in the valve pocket (13) of water inlet (14) top, support pads (5) is installed, the top of support pads (5) is equipped with black box (15), and support pads (5) and black box (15) all are sleeved on the needle (6).
2, water knife device according to claim 1 clear water cutting head, it is characterized in that described black box (15) is made up of O type circle (7), high-pressure seal ring (4), high pressure sealing pad (3), O type circle (7) is installed in the annular groove of high-pressure seal ring (4), the arc-shaped concave of the arc convex of high-pressure seal ring (4) and high pressure sealing pad (3) offsets, and the other end of high pressure sealing pad (3) offsets with the bottom surface that is installed in the push rod fairlead (1) in valve body (2) upper end.
3, water knife device according to claim 1 clear water cutting head is characterized in that in the valve pocket (13) of water inlet (14) bottom needle fairlead (8) being installed, and needle (6) passes needle fairlead (8) and matches with pin hole (12) under its guiding.
4, water knife device according to claim 1 clear water cutting head is characterized in that needle (6) contacts surface roughness Ra partly smaller or equal to 0.2 μ m with black box (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109400 CN2762979Y (en) | 2004-12-06 | 2004-12-06 | Pure water cutting head of water knife equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109400 CN2762979Y (en) | 2004-12-06 | 2004-12-06 | Pure water cutting head of water knife equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762979Y true CN2762979Y (en) | 2006-03-08 |
Family
ID=36140528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109400 Expired - Lifetime CN2762979Y (en) | 2004-12-06 | 2004-12-06 | Pure water cutting head of water knife equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762979Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121286B (en) * | 2007-05-18 | 2010-10-27 | 陈波 | Multi-functional water cutter |
| CN101670558B (en) * | 2009-09-28 | 2010-12-29 | 南京大地水刀股份有限公司 | Equal negative pressure bidirectional sand inlet water cutting head |
| CN106625272A (en) * | 2016-12-09 | 2017-05-10 | 重庆平步青云汽车配件有限公司 | Working method of cutting tool for rearview mirror |
-
2004
- 2004-12-06 CN CN 200420109400 patent/CN2762979Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121286B (en) * | 2007-05-18 | 2010-10-27 | 陈波 | Multi-functional water cutter |
| CN101670558B (en) * | 2009-09-28 | 2010-12-29 | 南京大地水刀股份有限公司 | Equal negative pressure bidirectional sand inlet water cutting head |
| CN106625272A (en) * | 2016-12-09 | 2017-05-10 | 重庆平步青云汽车配件有限公司 | Working method of cutting tool for rearview mirror |
| CN106625272B (en) * | 2016-12-09 | 2019-03-08 | 重庆平步青云汽车配件有限公司 | A kind of working method of the cutting tool for rearview mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING EARTH WATER KNIFE CO., LTD. Free format text: FORMER OWNER: NANJING EARTH SHUIDAO CO., LTD. Effective date: 20080808 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080808 Address after: Economic Development Zone in Gaochun County of Nanjing City, Jiangsu Province, No. 99, zip code: 211300 Patentee after: Nanjing Dardi Water Cutter Co., Ltd. Address before: Yangjiang Gaochun County town of Nanjing city of Jiangsu Province Jin Hu West, zip code: 211300 Patentee before: Dadi Water Knife Co., Ltd., Nanjing |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141206 Granted publication date: 20060308 |