CN201875311U - Seal joint in hydraulic system - Google Patents
Seal joint in hydraulic system Download PDFInfo
- Publication number
- CN201875311U CN201875311U CN 201020580504 CN201020580504U CN201875311U CN 201875311 U CN201875311 U CN 201875311U CN 201020580504 CN201020580504 CN 201020580504 CN 201020580504 U CN201020580504 U CN 201020580504U CN 201875311 U CN201875311 U CN 201875311U
- Authority
- CN
- China
- Prior art keywords
- link
- connecting piece
- head
- coupling nut
- pipe thread
- 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 seal joint applied to a hydraulic system. The seal joint comprises a first connecting piece, a second connecting piece, a connecting nut and an O-shaped sealing ring, wherein a pipe thread is lathed at the head of the first connecting piece; the middle outer wall of the first connecting piece is provided with a hexagon head; a pipe thread is lathed at the tail of the first connecting piece; the head of the second connecting piece is provided with a connecting seat; the outer diameter of the connecting seat is the same as that of the tail of the first connecting piece; a pipe thread is lathed on the peripheral wall of the connecting seat; the connecting nut is sheathed on the second connecting piece; the connecting nut is in threaded connection with the tail of the first connecting piece and the head of the second connecting piece; the connecting nut is provided with a clamping base; when the connecting nut is screwed towards the tail of the first connecting piece, the clamping base fastens the connecting seat at the head of the second connecting piece; and the O-shaped sealing ring is clamped between the first and the second connecting pieces. The seal joint is simple, ingenious and reasonable in structure, convenient to install and disassemble, and wide in applicable range. The O-shaped sealing ring is not damaged due to excessive squeezing.
Description
Technical field
The utility model relates to a kind of seal connector, specifically a kind of SEALING FITTING that is applied in the hydraulic system.
Background technique
Existing many machinery all have hydraulic system, and are reliable for guaranteeing hydraulic work system, and being connected between the metal tube and between metal tube and the element should have enough intensity, good sealing, and its pressure loss is little, and dismounting will make things convenient for.At present, mainly containing direct welding, flange being connected between the metal tube and between metal tube and the element connects and is connected several modes with SEALING FITTING.When directly welding, welding job will be carried out in the erecting bed, needs through series of processes such as trial assembly, welding, slagging-off, pickling, the back is installed dismantles inconvenience, and welding quality is difficult for checking, therefore seldom employing.Flange connects reliable operation, and mounting or dismounting are convenient, but boundary dimension is bigger, and will weld or cast flange on metal tube, therefore is used for the bigger metal tube of outside dimension more and connects.When the oil pipe external diameter hour, generally adopt SEALING FITTING to connect, existing SEALING FITTING generally is made up of coupling nut, cutting ferrule and fittings body, intake pipe inserts fittings body during use, tightens coupling nut, the cutting edge on the cutting ferrule embeds outer wall of steel pipe, forms to seal.But the SEALING FITTING installing/dismounting of this structure is not too convenient, and can cause damage to element, and is simultaneously not ideal enough for being tightly connected of copper tube, Al-alloy pipe.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, ingenious, reasonably be applicable to SEALING FITTING in the hydraulic system, the easy installation and removal of sealing joint, simultaneously applied widely.
The technological scheme that provides according to the utility model: the SEALING FITTING in the described hydraulic system comprises first link, second link, coupling nut and O-ring seals, the head car of described first link is useful on the pipe thread that is tightly connected with other elements, the outer wall at the middle part of first link is provided with hexagon head, and the afterbody car of first link has pipe thread; The head of described second link is provided with connecting base, and the external diameter of connecting base is identical with the external diameter of the first link afterbody, at the periphery wall of the connecting base pipe thread of having got on the bus; Coupling nut is enclosed within on second link, and coupling nut is connected with the afterbody of first link, the head threads of second link; Described coupling nut is provided with deck, and coupling nut is when the afterbody precession of first link, and deck tightens the connecting base of the second link head; Described O-ring seals is installed between first link and second link.
As further improvement of the utility model, the described first link breech face is provided with a ring-shaped step, and described O-ring seals is installed in the ring-shaped step.
The utility model compared with prior art, advantage is: simple in structure, ingenious, reasonable, easy installation and removal, applied widely; Be threaded between SEALING FITTING and each element, by the O-ring seals sealing, can lesion element; O-ring seals is installed in the ring-shaped step, and during the coupling nut precession, O-ring seals can not be subjected to excessive compression and damage.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in Figure 1, the SEALING FITTING among the embodiment is applied in the hydraulic system, and it mainly is made up of first link 1, second link 4, coupling nut 2 and O-ring seals 3.
As shown in Figure 1, the head car of described first link 1 is useful on the pipe thread that is tightly connected with other elements, and the outer wall at the middle part of first link 1 is provided with hexagon head 1a, and hexagon head 1a and Wrench match, so that the installing/dismounting of first link 1; The afterbody car of first link 1 has pipe thread.
As shown in Figure 1, the head of described second link 4 is provided with connecting base 4a, and the external diameter of connecting base 4a is identical with the external diameter of first link, 1 afterbody, at the periphery wall of the connecting base 4a pipe thread of having got on the bus; Coupling nut 2 is enclosed within on second link 4, and coupling nut 2 is connected with the afterbody of first link 1, the head threads of second link 4.
As shown in Figure 1, described coupling nut 2 is provided with deck 2a, and coupling nut 2 is when the afterbody precession of first link 1, and deck 2a tightens the connecting base 4a of second link, 4 heads.
As shown in Figure 1, described O-ring seals 3 is installed between first link 1 and second link 4, and described first link, 1 breech face is provided with a ring-shaped step 1b, and described O-ring seals 3 is installed in the ring-shaped step 1b; Because O-ring seals 3 is installed in the ring-shaped step 1b, when screwing into to a certain degree, coupling nut 2 can be propped up by ring-shaped step 1b, and make O-ring seals 3 can not be subjected to excessive compression and damage.
Claims (2)
1. the SEALING FITTING in the hydraulic system, it is characterized in that: it comprises first link (1), second link (4), coupling nut (2) and O-ring seals (3), the head car of described first link (1) is useful on the pipe thread that is tightly connected with other elements, the outer wall at the middle part of first link (1) is provided with hexagon head (1a), and the afterbody car of first link (1) has pipe thread; The head of described second link (4) is provided with connecting base (4a), and the external diameter of connecting base (4a) is identical with the external diameter of first link (1) afterbody, at the periphery wall of connecting base (4a) pipe thread of having got on the bus; Coupling nut (2) is enclosed within on second link (4), and coupling nut (2) is connected with the afterbody of first link (1), the head threads of second link (4); Described coupling nut (2) is provided with deck (2a), coupling nut (2) when the afterbody precession of first link (1), the connecting base (4a) of deck (2a) chucking second link (4) head; Described O-ring seals (3) is installed between first link (1) and second link (4).
2. the SEALING FITTING in the hydraulic system as claimed in claim 1 is characterized in that: described first link (1) breech face is provided with a ring-shaped step (1b), and described O-ring seals (3) is installed in the ring-shaped step (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020580504 CN201875311U (en) | 2010-10-28 | 2010-10-28 | Seal joint in hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020580504 CN201875311U (en) | 2010-10-28 | 2010-10-28 | Seal joint in hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875311U true CN201875311U (en) | 2011-06-22 |
Family
ID=44163228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020580504 Expired - Fee Related CN201875311U (en) | 2010-10-28 | 2010-10-28 | Seal joint in hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875311U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011905A (en) * | 2010-10-28 | 2011-04-13 | 无锡宝南机器制造有限公司 | Sealing joint in hydraulic system |
| CN108443605A (en) * | 2017-10-26 | 2018-08-24 | 衡阳金化高压容器股份有限公司 | Gas cylinder air seal test connector |
| CN109469776A (en) * | 2017-09-08 | 2019-03-15 | 中国石油化工股份有限公司 | A kind of high-voltage quick joint in high pressure gas storage and transportation equipment |
-
2010
- 2010-10-28 CN CN 201020580504 patent/CN201875311U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011905A (en) * | 2010-10-28 | 2011-04-13 | 无锡宝南机器制造有限公司 | Sealing joint in hydraulic system |
| CN109469776A (en) * | 2017-09-08 | 2019-03-15 | 中国石油化工股份有限公司 | A kind of high-voltage quick joint in high pressure gas storage and transportation equipment |
| CN108443605A (en) * | 2017-10-26 | 2018-08-24 | 衡阳金化高压容器股份有限公司 | Gas cylinder air seal test connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111028 |