CN201672180U - Leak-proof hydraulic joint - Google Patents
Leak-proof hydraulic joint Download PDFInfo
- Publication number
- CN201672180U CN201672180U CN2010201653996U CN201020165399U CN201672180U CN 201672180 U CN201672180 U CN 201672180U CN 2010201653996 U CN2010201653996 U CN 2010201653996U CN 201020165399 U CN201020165399 U CN 201020165399U CN 201672180 U CN201672180 U CN 201672180U
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- CN
- China
- Prior art keywords
- hydraulic joint
- screw thread
- sealed end
- end screw
- hexahedron
- 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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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
A leak-proof hydraulic joint is a connecting joint applied to a hydraulic pipeline system and mainly comprises a sealed end thread, a hexahedron, a connection end thread, a central hole, a sealed end surface and an arc surface, wherein a cylindrical hydraulic joint is provided with the central hole, two ends of the hydraulic joint are respectively provided with the sealed end thread and the connection end thread, and the sealed end thread and the connection end thread are external threads; the middle of the hydraulic joint is provided with the hexahedron that can fix a wrench and screw the hydraulic joint; the side surface of the hexahedron is provided with an annular sealed end surface; a round of tool withdrawal groove is arranged between the sealed end thread and the annular sealed end surface; and the tool withdrawal groove consists of a round of arc surface and cylindrical surface, namely, the inner end of the sealed end thread is connected with the cylindrical surface, and the arc surface is between the cylindrical surface and the sealed end surface. The effect is as follows: with a sealed washer capable of being compacted, the hydraulic joint does not leak.
Description
Technical field
The utility model relates to the hydraulic machinery technical field, particularly be with oil medium height, in and the jointing of low-pressure fluid pipe-line system.
Background technique
Domestic related fluid crimp head has center hole, and the external thread diameter span at hydraulic joint two ends is between 2.5～5mm.Positive hexahedron is arranged in the middle of the outside thread of two ends, the processing tool withdrawal groove is arranged at positive hexahedron and sealed end threaded inner end.The processing tool withdrawal groove is a cone structure.The screw thread tooth top of the conical surface of joint screw thread tool withdrawal groove and tapped hole interferes, and causes seal washer to be compressed or can't be compacted, the gap occurs.When system oil pressure increase or oily temperature rise, the oil impregnate phenomenon often appears, follow the mixing of dust in the environment, form abundant greasy filth, had a strong impact on the equipment appearance quality.
The model utility content
The purpose of this utility model is: a kind of leakage proof hydraulic joint is provided, changes the structure of hydraulic joint sealed end threaded inner end processing tool withdrawal groove, when adopting the seal washer sealing, can compress seal washer, make hydraulic joint leakage problems can not take place.
The technical solution adopted in the utility model is: the leakage proof hydraulic joint, mainly form by sealed end screw thread, hexahedron, connecting end screw thread, center hole, seal face and arc surface, cylindrical hydraulic joint has center hole, sealed end screw thread and connecting end screw thread are arranged respectively at the hydraulic joint two ends, and sealed end screw thread and connecting end screw thread are outside threads.Hexahedron is arranged in the middle of hydraulic joint, and hexahedron energy fixed wrench screws hydraulic joint.In the side of hexahedron the ring packing end face is arranged, it is characterized in that: all tool withdrawal grooves are arranged between sealed end screw thread and ring packing end face, and described tool withdrawal groove is made up of all arc surfaces and cylndrical surface.Promptly connect the cylndrical surface, between cylndrical surface and the seal face arc surface is arranged in the inner of sealed end screw thread.
The beneficial effects of the utility model: the utility model leakage proof hydraulic joint, changed the structure of hydraulic joint sealed end threaded inner end tool withdrawal groove, arc surface can avoid the seal washer virtual pressure situation that contracts to take place.When adopting the seal washer sealing, can compress seal washer, make hydraulic joint leakage problems can not take place.On light-duty cross-country marsh buggy, try out, effectively prevented the seepage of fluid.
Description of drawings
Fig. 1 is the utility model leakage proof hydraulic joint structural profile schematic representation.
Fig. 2 is the left view of Fig. 1.
Among the figure, 1. sealed end screw thread, 2. hexahedron, 3. connecting end screw thread, 4. center hole, 5. seal face, 6. arc surface, 7. cylndrical surface.
Embodiment
Embodiment 1: with a leakage proof hydraulic joint is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model leakage proof hydraulic joint mainly is made up of sealed end screw thread 1, hexahedron 2, connecting end screw thread 3, center hole 4, seal face 5 and arc surface 6.
It is 6 millimeters center hole that cylindrical hydraulic joint has diameter, and sealed end screw thread 1 and the connecting end screw thread 3 of M18 * 1.5-6g arranged respectively at the hydraulic joint two ends, and sealed end screw thread 1 and connecting end screw thread 3 are outside threads.A hexahedron 2 is arranged in the middle of hydraulic joint.In the side of hexahedron 2 ring packing end face 5 is arranged.
One all tool withdrawal grooves are arranged, 3 millimeters of the width of tool withdrawal groove between sealed end screw thread 1 and ring packing end face 5.Described tool withdrawal groove is made up of all arc surfaces 6 and cylndrical surface 7.Promptly connect one 3 millimeters cylndrical surface 7, the arc surface 6 of 3.7 millimeters of radiuses is arranged between cylndrical surface 7 and the seal face 5 in the inner of sealed end screw thread 1.
Except that arc surface 6, other structures of leakage proof hydraulic joint are carried out according to the GB/T5625.2-1985 standard.
Claims (1)
1. leakage proof hydraulic joint, mainly form by sealed end screw thread (1), hexahedron (2), connecting end screw thread (3), center hole (4), seal face (5) and arc surface (6), cylindrical hydraulic joint has center hole, sealed end screw thread (1) and connecting end screw thread (3) are arranged respectively at the hydraulic joint two ends, and sealed end screw thread (1) and connecting end screw thread (3) are outside threads; Hexahedron (2) is arranged in the middle of hydraulic joint, and hexahedron (2) energy fixed wrench screws hydraulic joint; In the side of hexahedron (2) ring packing end face (5) is arranged, it is characterized in that: between sealed end screw thread (1) and ring packing end face (5), all tool withdrawal grooves are arranged, described tool withdrawal groove is made up of all arc surfaces (6) and cylndrical surface (7), promptly connect cylndrical surface (7), between cylndrical surface (7) and the seal face (5) arc surface (6) is arranged in the inner of sealed end screw thread (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201653996U CN201672180U (en) | 2010-04-16 | 2010-04-16 | Leak-proof hydraulic joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201653996U CN201672180U (en) | 2010-04-16 | 2010-04-16 | Leak-proof hydraulic joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672180U true CN201672180U (en) | 2010-12-15 |
Family
ID=43329592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201653996U Expired - Fee Related CN201672180U (en) | 2010-04-16 | 2010-04-16 | Leak-proof hydraulic joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672180U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777712A (en) * | 2012-07-11 | 2012-11-14 | 宁波嘉诚液压有限公司 | Transition joint |
| CN103292078A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Expansion ring type pipe end connecting member |
| CN103775007A (en) * | 2013-10-29 | 2014-05-07 | 中国石油天然气股份有限公司 | Rapid pressure welding connection method and device of coiled tubing |
| CN104048045A (en) * | 2014-05-28 | 2014-09-17 | 电子科技大学 | Ultrahigh pressure sealing anti-leakage anti-seepage connector and connecting piece |
-
2010
- 2010-04-16 CN CN2010201653996U patent/CN201672180U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777712A (en) * | 2012-07-11 | 2012-11-14 | 宁波嘉诚液压有限公司 | Transition joint |
| CN103292078A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Expansion ring type pipe end connecting member |
| CN103775007A (en) * | 2013-10-29 | 2014-05-07 | 中国石油天然气股份有限公司 | Rapid pressure welding connection method and device of coiled tubing |
| CN103775007B (en) * | 2013-10-29 | 2016-08-17 | 中国石油天然气股份有限公司 | A kind of coiled tubing quickly crimps connection method and device |
| CN104048045A (en) * | 2014-05-28 | 2014-09-17 | 电子科技大学 | Ultrahigh pressure sealing anti-leakage anti-seepage connector and connecting piece |
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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: 20101215 Termination date: 20190416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |