CN208397503U - Hydraulic fitting is tightly connected new construction - Google Patents
Hydraulic fitting is tightly connected new construction Download PDFInfo
- Publication number
- CN208397503U CN208397503U CN201820950885.5U CN201820950885U CN208397503U CN 208397503 U CN208397503 U CN 208397503U CN 201820950885 U CN201820950885 U CN 201820950885U CN 208397503 U CN208397503 U CN 208397503U
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- section
- sealing ring
- seal groove
- thickness
- hose coupling
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Abstract
Hydraulic fitting is tightly connected new construction, including hose coupling and transit joint, the left part outer round surface of hose coupling offers seal groove, the grafting of hose coupling left part is simultaneously threaded in transit joint right output port, sealing ring is installed in seal groove, the material of sealing ring is polyurethane, the outer profile of the cross section of sealing ring by left side arc section, the conical section at middle part and the rectangular section of composition on right side, conical section is in left-thick right-thin structure, the diameter of arc section is equal to the thickness of conical section left end, the thickness of conical section right end is equal to rectangular section of thickness, the outer ring of the arc section of sealing ring and inner ring cooperate with transit joint inner wall and seal groove sealed bottom respectively, rectangular section of right side and the right side wall of seal groove press and cooperate.The sealing ring of the utility model uses the form of integral structure, and shape is unique, and design is rationally, structure is simple, sealing effect is good, is hardly damaged, is highly reliable.
Description
Technical field
The utility model belongs to hydraulic fitting technical field more particularly to a kind of hydraulic fitting is tightly connected new knot
Structure.
Background technique
Hose is harder between the frame of the big specification of hydraulic support, as shown in Figure 1, close between hose coupling 1 and transit joint 2
Envelope mode is the sealing of nitrile rubber sealing ring 3+ polytetrafluoroethylene (PTFE) retaining ring 4, and wherein transit joint 2 is connected to valve block or is welded on steel
Tube head, the installation space between hose coupling 1 and transit joint 2 is limited, and hose coupling 1 is difficult and corresponds to when installation
Transit joint 2 guarantee good concentricity, be squeezed so as to cause nitrile rubber sealing ring 3 rotten, hydraulic support caused to work
When leakage.
Utility model content
The utility model in order to solve shortcoming in the prior art, provide a kind of good sealing effect, long service life,
Highly reliable hydraulic fitting is tightly connected new construction.
In order to solve the above technical problems, the utility model adopts the following technical solution: hydraulic fitting is tightly connected new knot
Structure, including hose coupling and transit joint, the left part outer round surface of hose coupling offer seal groove, hose coupling left part
Grafting is simultaneously threaded in transit joint right output port, sealing ring is equipped in seal groove, the material of sealing ring is polyurethane, close
The outer profile of the cross section of seal is made of rectangular section of the arc section in left side, the conical section at middle part and right side, and conical section is in a left side
Thick right thin structure, the diameter of arc section are equal to the thickness of conical section left end, and the thickness of conical section right end is equal to rectangular section of thickness,
The outer ring of the arc section of sealing ring and inner ring cooperate with transit joint inner wall and seal groove sealed bottom respectively, rectangular section of right side
It presses and cooperates with the right side wall of seal groove.
Further, the edges and corners of rectangular section of right upper portion and the edges and corners of lower part seamlessly transit.
By adopting the above technical scheme, split type structure in nitrile rubber sealing ring+polytetrafluoroethylene (PTFE) retaining ring in the prior art
And mounting means easily causes the extruding to nitrile rubber sealing ring and damages, the sealing ring of the utility model uses integral type knot
Structure, and be made of polyurethane material, hardness is higher than nitrile rubber, so that the circular arc segment section on the left of sealing ring be avoided to be squeezed
It is bad；Sealing ring is designed using the structure of approximation D type, it is not easy to which the impulsive force generated when being under pressure and pulsing makes sealing ring close
Sliding influences sealing effect in sealing groove.Rectangular section of thickness be less than arc section diameter, rectangular section of inner ring and outer ring respectively with
There is gap between the slot bottom of seal groove and the inner wall of transit joint, have when arc section can be made to be squeezed deformation in this way and accommodate
Space.The edges and corners of rectangular section of right upper portion and the edges and corners of lower part seamlessly transit, can make so rectangular section by
Facilitate deformation when extruding.
In conclusion the sealing ring of the utility model uses the form of integral structure, shape is unique, designs reasonable, structure
Simply, sealing effect is good, is hardly damaged, is highly reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the enlarged diagram of sealing ring cross section in Fig. 2.
Specific embodiment
As shown in Figures 2 and 3, the hydraulic fitting of the utility model is tightly connected new construction, including hose coupling 1 and mistake
Connector 2 is crossed, the left part outer round surface of hose coupling 1 offers seal groove, and 1 left part grafting of hose coupling is simultaneously threaded in
In 2 right output port of transit joint, sealing ring 5 is installed in seal groove, the material of sealing ring 5 is polyurethane, the cross section of sealing ring 5
Outer profile be made of rectangular section 8 of the arc section 6 in left side, the conical section 7 at middle part and right side, conical section 7 be in left-thick right-thin knot
Structure, the diameter of arc section 6 are equal to the thickness of 7 left end of conical section, and the thickness of 7 right end of conical section is equal to rectangular section 8 of thickness, sealing
The outer ring of the arc section 6 of circle 5 and inner ring cooperate with 2 inner wall of transit joint and seal groove sealed bottom respectively, rectangular section 8 of right side
It presses and cooperates with the right side wall of seal groove.
The edges and corners of rectangular section 8 of right upper portion and the edges and corners of lower part seamlessly transit.Arrow is oriented to hydraulic in Fig. 2
The flow direction of oil, i.e. fluid pressure direction.
Split type structure and installation in nitrile rubber sealing ring 3+ polytetrafluoroethylene (PTFE) retaining ring 4 in the prior art as shown in Figure 1
Mode easily causes the extruding to nitrile rubber sealing ring 3 and damages.
The sealing ring 5 of the utility model uses integral structure, and is made of polyurethane material, hardness rubber finer than fourth
Glue is high, so that it is bad to avoid 6 part of arc section in 5 left side of sealing ring from being squeezed；Sealing ring 5 is designed using the structure of approximation D type, is not allowed
The impulsive force easily generated when being under pressure and pulsing, which slides sealing ring 5 in seal groove, influences sealing effect.Rectangular section 8 of thickness
Degree be less than arc section 6 diameter, rectangular section 8 of inner ring and outer ring respectively with the inner wall of the slot bottom of seal groove and transit joint 2 it
Between have gap, can make arc section 6 when being squeezed deformation with the space of receiving in this way.The rib of rectangular section 8 of right upper portion
The edges and corners of at angle and lower part seamlessly transit, and rectangular section 8 can be made to facilitate deformation when being squeezed in this way.
The present embodiment not makes any form of restriction the shape of the utility model, material, structure etc., all foundations
The technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, belong to this reality
With the protection scope of new technique scheme.
Claims (2)
1. hydraulic fitting is tightly connected new construction, including hose coupling and transit joint, the left part outer circle table of hose coupling
Face offers seal groove, and the grafting of hose coupling left part is simultaneously threaded in transit joint right output port, it is characterised in that: sealing
Sealing ring is installed in slot, the material of sealing ring is polyurethane, the outer profile of the cross section of sealing ring by left side arc section, in
The conical section in portion and the rectangular section of composition on right side, conical section are in left-thick right-thin structure, and the diameter of arc section is equal to conical section left end
Thickness, the thickness of conical section right end is equal to rectangular section of thickness, the outer ring of the arc section of sealing ring and inner ring respectively with transition
Inner nosepiece wall and the cooperation of seal groove sealed bottom, rectangular section of right side and the right side wall of seal groove press and cooperate.
2. hydraulic fitting according to claim 1 is tightly connected new construction, it is characterised in that: rectangular section of right upper portion
Edges and corners and the edges and corners of lower part seamlessly transit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820950885.5U CN208397503U (en) | 2018-06-20 | 2018-06-20 | Hydraulic fitting is tightly connected new construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820950885.5U CN208397503U (en) | 2018-06-20 | 2018-06-20 | Hydraulic fitting is tightly connected new construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208397503U true CN208397503U (en) | 2019-01-18 |
Family
ID=65132014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820950885.5U Active CN208397503U (en) | 2018-06-20 | 2018-06-20 | Hydraulic fitting is tightly connected new construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208397503U (en) |
-
2018
- 2018-06-20 CN CN201820950885.5U patent/CN208397503U/en active Active
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| GR01 | Patent grant |