CN212131603U - Sealing device for hydraulic flat surface welding pipe fitting - Google Patents
Sealing device for hydraulic flat surface welding pipe fitting Download PDFInfo
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- CN212131603U CN212131603U CN202020860209.6U CN202020860209U CN212131603U CN 212131603 U CN212131603 U CN 212131603U CN 202020860209 U CN202020860209 U CN 202020860209U CN 212131603 U CN212131603 U CN 212131603U
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Abstract
The utility model discloses a sealing device of hydraulic pressure face welding pipe fitting relates to the sealed technical field of pipe fitting. The utility model discloses a first connecting pipe, second connecting pipe and fixed cover, the fixed first link that is equipped with in right side of first connecting pipe, the left side of second connecting pipe is equipped with the second link, the noose has fixed cover on the second connecting pipe, the left end threaded connection of fixed cover is in the outside of first link, and ring groove has been seted up to the right flank of first link, and ring groove internal fixation joint has O type circle, and the right flank of O type circle is connected with the left side wall of second link. The utility model discloses ring groove has been seted up at the right flank of first link to with O type circle setting in ring groove, can utilize ring groove to block O type circle, avoid it inside by the suction line, and can keep the invariant and the stability of pressure in the use, make O type circle be in the state of static seal, increase of service life.
Description
Technical Field
The utility model belongs to the technical field of, especially, relate to a sealing device of hydraulic pressure face welding pipe fitting.
Background
The hydraulic straight-through joint is widely used on a hydraulic system and is mainly used for connecting a hydraulic pipeline, when the mechanical standard hydraulic joint is used as a pressure pipeline, the pressure of internal hydraulic oil directly acts on an O-shaped sealing ring, the sealing ring acts on the pressure environment of alternating load for a long time, the sealing ring can be damaged by fatigue after working for a certain time, and can be squeezed into a gap of a sealing surface of the pipe joint under the condition of the alternating load to cause meshing damage so as to cause oil leakage, when the mechanical standard hydraulic joint is used as an oil suction pipeline, the internal hydraulic oil is in a vacuum negative pressure state, and the same negative pressure directly acts on the O-shaped ring to cause the O-shaped ring to be sucked into the pipeline in vacuum, so that the pipeline oil leakage and hydraulic elements are damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealing device of hydraulic pressure face welding pipe fitting has seted up ring groove at the right flank of first link to with O type circle setting in ring groove, can utilize ring groove to block O type circle, avoid it by the suction pipe inside, and can keep the invariable and the stability of pressure in the use, make O type circle be in the state of quiet sealing, increase of service life has solved current problem.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a sealing device of a hydraulic flat surface welding pipe fitting, which comprises a first connecting pipe, a second connecting pipe and a fixed sleeve, wherein the right side of the first connecting pipe is fixedly provided with a first connecting end, the left side of the second connecting pipe is fixedly provided with a second connecting end, the fixed sleeve is sleeved on the second connecting pipe, the outer side wall of the first connecting end is provided with a first thread, the inner wall of the left side end of the fixed sleeve is provided with a second thread, the first connecting end is provided with the first connecting end, the first connecting end is provided with the first thread, the inner wall of the left side end of the fixed sleeve is provided with the second thread, the first thread and the second thread are occluded together by rotating the fixed sleeve, so that the first connecting pipe and the second connecting pipe can be connected together, the left end of the fixed sleeve is in threaded connection with the outer side of the first connecting end, the right side surface of the, fixed joint has O type circle in the ring groove, the right flank of O type circle is connected with the left wall of second link, can utilize ring groove to block O type circle, and restrict it, avoid O type circle because the effect of negative pressure is inside by the suction line, and the effect through O type circle makes and leaves the clearance between first link and the second link, when hydraulic pressure connects when being pressure pipeline use, the pressure of inside hydraulic oil advances to be used on O type circle behind the clearance of predetermineeing, belong to the aperture flow, the constancy and the stability of pressure have basically been kept, O type circle is in the state of static seal, so long service life.
Furthermore, the first connecting end is connected with the first connecting pipe in an integrated forming mode, and the second connecting end is connected with the second connecting pipe in an integrated forming mode.
Further, the right-hand member integrated into one piece of fixed cover is provided with the rand, the internal diameter of rand is less than the external diameter of second link, can prevent that first connecting pipe from slipping from fixed cover.
Furthermore, a rotating nut is arranged on the outer side of the first connecting pipe and on the left side of the first connecting end, and the rotating nut and the first connecting pipe are integrally formed.
Furthermore, the outer side surface of the fixing sleeve is in a hexahedral nut shape.
The utility model discloses following beneficial effect has:
1. the utility model discloses an annular groove has been seted up at the right flank at first link, and set up O type circle in annular groove, can utilize annular groove to block O type circle, and restrict it, avoid O type circle because the effect of negative pressure is inside by the suction line, and the effect through O type circle makes and leaves the clearance between first link and the second link, when hydraulic pressure connects when being pressure pipeline use, the effect is on O type circle after the pressure of inside hydraulic oil advances the clearance of predetermineeing, belong to the aperture flow, the constancy and the stability of pressure have been kept basically, O type circle is in the state of static seal, so long service life.
2. The utility model discloses a set up first link on first connecting pipe to set up first screw thread on first link, seted up the second screw thread at the left side end inner wall of fixed cover, make first screw thread and second screw thread interlock together through rotating fixed cover, alright link together first connecting pipe and second connecting pipe, through setting up the second link on the second connecting pipe, make fixed cover can block it, make its right-hand member with first connecting pipe support tightly, easy operation is convenient.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the internal structure of a sealing device for a hydraulic flat surface welding pipe fitting according to the present invention;
fig. 2 is a schematic diagram of an outer side structure of the sealing device for a hydraulic flat surface welding pipe fitting of the present invention;
fig. 3 is a schematic side view of the sealing device for a hydraulic flat surface welding pipe of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. a first connecting pipe; 101. a first connection end; 102. rotating the nut; 2. a second connecting pipe; 201. a second connection end; 3. fixing a sleeve; 301. a collar; 4. a first thread; 5. a second thread; 6. an annular neck; 7. and an O-shaped ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention relates to a sealing device for a hydraulic flat surface welding pipe, including a first connecting pipe 1, a second connecting pipe 2 and a fixing sleeve 3, wherein a first connecting end 101 is fixedly disposed on a right side of the first connecting pipe 1, a second connecting end 201 is fixedly disposed on a left side of the second connecting pipe 2, the fixing sleeve 3 is coupled to the second connecting pipe 2, a first thread 4 is disposed on an outer side wall of the first connecting end 101, a second thread 5 is disposed on an inner wall of a left side end of the fixing sleeve 3, a left end of the fixing sleeve 3 is screwed to an outer side of the first connecting end 101, an annular groove 6 is disposed on a right side surface of the first connecting end 101, an O-ring 7 is fixedly clamped in the annular groove 6, a right side surface of the O-ring 7 is connected to a left side wall of the second connecting end 201, by disposing the first connecting end 101 on the first connecting pipe 1, and disposing the first, the inner wall of the left end of the fixing sleeve 3 is provided with a second thread 5, the first thread 4 and the second thread 5 are meshed together by rotating the fixing sleeve 3, the first connecting pipe 1 and the second connecting pipe 2 can be connected together, the fixing sleeve 3 can be clamped by arranging the second connecting end 201 on the second connecting pipe 2, the fixing sleeve is enabled to be abutted against the right end of the first connecting pipe 1, the right side surface of the first connecting end 101 is provided with an annular clamping groove 6, the O-shaped ring 7 is arranged in the annular clamping groove 6, the O-shaped ring 7 can be blocked by the annular clamping groove 6 and limited, the O-shaped ring 7 is prevented from being sucked into the pipeline due to the action of negative pressure, a gap is reserved between the first connecting end 101 and the second connecting end 201 due to the action of the O-shaped ring 7, when the hydraulic joint is used as a pressure pipeline, the pressure oil inside acts on the O-shaped ring 7 after passing through the preset gap, the flow rate of the small hole is kept, the pressure is basically constant and stable, and the O-shaped ring 7 is in a static sealing state, so the service life is long.
As shown in fig. 1-2, the first connecting end 101 is integrally connected to the first connecting pipe 1, the second connecting end 201 is integrally connected to the second connecting pipe 2, the rotating nut 102 is disposed on the left side of the first connecting end 101 on the outer side of the first connecting pipe 1, the rotating nut 102 is integrally formed with the first connecting pipe 1, and the first connecting pipe 1 is connected to the fixing sleeve 3 more easily and conveniently by the rotating nut 102.
As shown in fig. 1-2, a collar 301 is integrally formed at the right end of the fixing sleeve 3, the inner diameter of the collar 301 is smaller than the outer diameter of the second connecting end 201, and the outer side surface of the fixing sleeve 3 is in the shape of a hexahedral nut, so that the fixing sleeve 3 can be rotated more conveniently when being connected.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solution recorded in the foregoing embodiments is modified, and some technical features are replaced by equivalent, all belonging to the protection scope of the present invention.
Claims (5)
1. The utility model provides a sealing device of hydraulic pressure face welding pipe fitting, includes first connecting pipe (1), second connecting pipe (2) and fixed cover (3), its characterized in that: the right side of first connecting pipe (1) is fixed and is equipped with first link (101), the left side of second connecting pipe (2) is fixed and is equipped with second link (201), second connecting pipe (2) are gone up the cover and are tied up fixed cover (3), first screw thread (4) have been seted up to the lateral wall of first link (101), second screw thread (5) have been seted up to the left side end inner wall of fixed cover (3), the left end threaded connection of fixed cover (3) is in the outside of first link (101), ring groove (6) have been seted up to the right flank of first link (101), ring groove (6) internal fixation joint has O type circle (7), the right flank of O type circle (7) is connected with the left side wall of second link (201).
2. A sealing device for hydraulic flat surface welded pipe elements according to claim 1, characterized in that said first connecting end (101) is connected to the first connecting pipe (1) in one piece and said second connecting end (201) is connected to the second connecting pipe (2) in one piece.
3. Sealing device for hydraulic flat welded tubes, according to claim 1, characterized in that the right end of said sleeve (3) is provided with a collar (301) integrally formed, the inner diameter of said collar (301) being smaller than the outer diameter of the second connecting end (201).
4. Sealing device for hydraulic flat welded pipe according to claim 1, characterized in that the outside of the first connecting pipe (1) on the left of the first connecting end (101) is provided with a swivel nut (102), the swivel nut (102) being integrally formed with the first connecting pipe (1).
5. Sealing device for hydraulic flat welded tubes, according to claim 1, characterized in that the external lateral surface of said sleeve (3) is in the shape of a hexahedral nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020860209.6U CN212131603U (en) | 2020-05-21 | 2020-05-21 | Sealing device for hydraulic flat surface welding pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020860209.6U CN212131603U (en) | 2020-05-21 | 2020-05-21 | Sealing device for hydraulic flat surface welding pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131603U true CN212131603U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020860209.6U Active CN212131603U (en) | 2020-05-21 | 2020-05-21 | Sealing device for hydraulic flat surface welding pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131603U (en) |
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2020
- 2020-05-21 CN CN202020860209.6U patent/CN212131603U/en active Active
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