CN216643459U - Oil pipe joint for engineering machinery - Google Patents
Oil pipe joint for engineering machinery Download PDFInfo
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- CN216643459U CN216643459U CN202123412656.9U CN202123412656U CN216643459U CN 216643459 U CN216643459 U CN 216643459U CN 202123412656 U CN202123412656 U CN 202123412656U CN 216643459 U CN216643459 U CN 216643459U
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Abstract
The utility model discloses an oil pipe joint for engineering machinery, which comprises an oil inlet pipe, an oil outlet pipe and a butt sealing pipe, wherein the oil inlet end of the oil inlet pipe penetrates through a second connecting port, the oil inlet pipe is limited in the second connecting port through a limiting plate, the inner top surface of the second connecting port is provided with a second annular groove in butt joint with the top end of the butt sealing pipe, and the upper part of the inner wall of the butt sealing pipe is provided with an annular limiting ring which is tightly abutted against the limiting plate; the oil outlet end of the oil outlet pipe is provided with the connecting port which is connected with the oil inlet end of the oil inlet pipe in a threaded manner, the second connecting port and the connecting port are internally provided with the butt sealing pipe which is fixedly butted through the annular groove and the second annular groove, the butt sealing pipe is used for sealing the second connecting port and the connecting port which are connected with each other again, the supporting effect is achieved between the connecting port and the second connecting port, and the firmness of connection between the connecting port and the second connecting port is further improved.
Description
Technical Field
The utility model belongs to the technical field of accessories for engineering machinery, and particularly relates to an oil pipe joint for engineering machinery.
Background
Hydraulic pressure oil pipe is the important component of engineering machine tool, hydraulic pressure oil pipe when being connected with the oil pipe of mechanical component, need connect through the oil pipe joint at hydraulic pressure oil pipe both ends, because hydraulic pressure oil pipe when supplying oil to equipment, need produce great atmospheric pressure to oil output, traditional hydraulic pressure oil pipe is mostly to set up the port that communicates with advancing oil pipe and oil pipe respectively at oil pipe both ends, adopt the mode of spiro union to be connected with equipment to oil pipe, very easily produce the problem of disconnection or fracture to oil pipe and intake pipe and oil pipe junction when the inside atmospheric pressure of oil pipe is great, reduce the security that oil pipe used.
Therefore, in the prior art, in order to improve the firm sealing property of the matching connection of the oil pipe and the oil inlet pipe and the oil outlet pipe, the hydraulic oil pipe joint for the engineering machinery with the publication number "CN 212804694U" comprises the oil inlet pipe and the oil outlet pipe, wherein the upper end of the oil inlet pipe is provided with a first flange positioned outside an oil outlet, the first flange is provided with connecting holes arranged at equal intervals, and the inner wall of the oil outlet is provided with a limit ring; the bottom of producing oil pipe is equipped with the connecting pipe, the junction that produces oil pipe and connecting pipe is equipped with the second flange, be equipped with the sealed recess that a plurality of groups equidistance set up on the connecting pipe, the rubber seal ring has been cup jointed in the sealed recess, the connecting pipe inserts to in the oil outlet, it has the stay bolt to run through in the through-hole on the second flange, the stay bolt spiro union is in the connecting hole that corresponds.
To above-mentioned this hydraulic pressure oil pipe joint for engineering machine tool, through the setting of rubber seal ring, insert to the back in the oil outlet at the connecting pipe, play the sealed effect to advancing oil pipe and going out oil pipe junction, run through the through-hole spiro union in the connecting hole that corresponds through the stay bolt, the fastness of advancing oil pipe and going out oil pipe connection has been improved, only seal between oil-out and oil pipe through setting up rubber seal ring, rubber seal ring easily produces the damage after long-time the use, thereby reduce the leakproofness of connecting between the oil pipe, and only assemble two oil pipes through the stay bolt, its assembly fastness remains to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an oil pipe joint for engineering machinery, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
an oil pipe joint for engineering machinery comprises an oil inlet pipe, an oil outlet pipe and a butt sealing pipe, wherein a connection port is integrally arranged at the oil outlet end of the oil outlet pipe, an annular groove is formed in a connection surface at the tail end of the connection port, the annular groove is formed in the outer side of an oil outlet on the connection port and is coaxial with the oil outlet, an inner sealing washer and an outer sealing washer are respectively arranged on the inner wall and the outer wall of each of two ends of the butt sealing pipe, and the bottom end of the butt sealing pipe is clamped into the annular groove and is tightly sealed through the inner sealing washer and the outer sealing washer;
the oil inlet end of the oil inlet pipe runs through and is arranged in the second connecting port, the oil inlet pipe is limited in the second connecting port through the limiting plate, the inner top surface of the second connecting port is provided with a second annular groove butted with the top end of the butt joint sealing pipe, the upper portion of the inner wall of the butt joint sealing pipe is provided with an annular limiting ring abutted against the limiting plate, and the inner groove of the inner wall of the second connecting port is fixed with the outer thread of the outer wall of the connecting port in a threaded manner.
Further, the inner width of the annular groove and the inner width of the second annular groove are larger than the thickness of the butt sealing pipe by 1 mm.
When the second connection port is connected with the connection port in a threaded manner, the two ends of the butt joint sealing pipe are clamped through the annular groove and the second annular groove, so that the butt joint sealing pipe is embedded and sealed in the connection port and the second connection port by matching the inner sealing washer and the outer sealing washer, and the bearing strength of the joint of the oil inlet pipe and the oil outlet pipe is improved.
Furthermore, the diameter of the limiting plate is consistent with the inner diameter of the butt sealing pipe, and a sealing rubber pad is arranged between the top surface of the limiting plate and the inner top surface of the second connecting port.
The limiting plate is in butt joint with the second annular groove on the inner top surface of the second connecting port along with the top end of the butt joint sealing pipe and is limited in the butt joint sealing pipe, the limiting plate is used for limiting the position of the oil inlet pipe and the position of the second connecting port, and the sealing rubber gasket is used for sealing the connecting position of the limiting plate and the second connecting port.
Furthermore, a limit bolt is screwed in a thread groove penetrating through the outer wall of the second connecting port, and the tail end of the limit bolt is screwed in the thread groove of the outer wall of the connecting port.
The tail end of the limiting bolt penetrates through the spiral groove on the second connecting port and then is in threaded connection with the second spiral groove on the outer wall of the connecting port, and the limiting bolt is used for reinforcing the connecting port and the second connecting port.
Furthermore, the bottom end of the limiting plate is provided with a connection oil pipe which is connected with the oil inlet pipe, and the connection oil pipe is connected with the inner wall of the oil outlet end of the oil outlet pipe in an inserting mode.
The connecting oil pipe is inserted into the oil outlet end of the oil outlet pipe and is used for further reinforcing the oil outlet pipe and the oil inlet pipe, so that oil output from the oil outlet pipe directly flows into the oil inlet pipe through the connecting oil pipe.
Furthermore, the oil inlet end of the oil outlet pipe is provided with a third connecting port which has the same structure with the connecting port.
Is used for communicating with the supply end of the oil outlet pipe through a third connecting port.
The utility model has the technical effects and advantages that:
this oil pipe joint for engineering machine tool, through the end setting of producing oil at an oil pipe with advance oil pipe oil feed and serve the connection port of second connection port looks spiro union to at the inside butt joint sealing tube that sets up through annular groove and second annular groove butt joint fixed of second connection port and connection port, the butt joint sealing tube is used for sealing once more interconnect's second connection port and connection port inside, and to playing the effect of supporting between connection port and the second connection port, further improve the fastness that connection port and second connection port are connected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view taken at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the disassembled and assembled perspective structure of FIG. 1 according to the present invention;
fig. 4 is a schematic diagram of a second connection port structure according to the present invention.
In the figure: 1. an oil inlet pipe; 2. an oil outlet pipe; 3. butting sealing tubes; 4. a connection port; 5. an annular groove; 6. an oil outlet; 7. an inner sealing washer; 8. an outer seal gasket; 9. a second connection port; 10. a limiting plate; 11. an annular spacing ring; 12. an inner spiral groove; 13. a second annular groove; 14. sealing the rubber pad; 15. a screw groove; 16. a limit bolt; 17. a second screw groove; 18. connecting an oil pipe; 19. a third connection port; 20. and (4) outer screw threads.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an oil pipe joint for engineering machinery, which comprises an oil inlet pipe 1, an oil outlet pipe 2 and a butt sealing pipe 3, wherein the oil outlet end of the oil outlet pipe 2 is integrally provided with a connecting port 4, the tail end connecting surface of the connecting port 4 is provided with an annular groove 5, the annular groove 5 is arranged at the outer side of an oil outlet 6 on the connecting port 4 and is coaxial with the oil outlet 6, the inner wall and the outer wall of the two ends of the butt sealing pipe 3 are respectively provided with an inner sealing washer 7 and an outer sealing washer 8, and the bottom end of the butt sealing pipe 3 is clamped into the annular groove 5 and is tensioned through the inner sealing washer 7 and the outer sealing washer 8;
the oil inlet end of the oil inlet pipe 1 runs through and is arranged in the second connecting port 9 and is limited in the second connecting port 9 through the limiting plate 10, the top surface is provided with a second annular groove 13 butted with the top end of the butt joint sealing pipe 3 in the second connecting port 9, and the width in the annular groove 5 and the second annular groove 13 is larger than the thickness 1mm of the butt joint sealing pipe 3. When the second connecting port 9 is in threaded connection with the connecting port 4, the two ends of the butt sealing pipe 3 are clamped through the annular groove 5 and the second annular groove 13, so that the butt sealing pipe 3 is in threaded connection with the second connecting port 9 and the connecting port 4, the inner sealing washer 7 and the outer sealing washer 8 are matched between the connecting port 4 and the second connecting port 9 to be embedded and sealed, and the pressure bearing strength of the joint of the oil inlet pipe 1 and the oil outlet pipe 2 is improved;
an annular limiting ring 11 tightly abutted to the limiting plate 10 is arranged on the upper portion of the inner wall of the butt joint sealing pipe 3, the diameter of the limiting plate 10 is consistent with the inner diameter of the butt joint sealing pipe 3, and a sealing rubber gasket 14 is arranged between the top surface of the limiting plate 10 and the inner top surface of the second connecting port 9. The limiting plate 10 is in butt joint with a second annular groove 13 of the top surface in the butt joint sealing tube 3 along with the butt joint sealing tube 3 top end and the second connection port 9 and is limited in the butt joint sealing tube 3, the position of the oil inlet tube 1 and the second connection port 9 is limited, the sealing rubber gasket 14 is used for sealing the connection position of the limiting plate 10 and the second connection port 9, the bottom end of the limiting plate 10 is provided with a connection oil tube 18 which is connected with the oil inlet tube 1, and the connection oil tube 18 is connected with the oil outlet end inner wall of the oil outlet tube 2 in an inserting mode. The connection oil pipe 18 is inserted into the oil outlet end of the oil outlet pipe 2 and is used for further reinforcing the oil outlet pipe 2 and the oil inlet pipe 1, so that oil output from the oil outlet pipe 2 directly flows into the oil inlet pipe 1 through the connection oil pipe 18;
the inner screw groove 12 on the inner wall of the second connecting port 9 is fixed with the outer screw thread 20 on the outer wall of the connecting port 4 in a screw joint mode. A limit bolt 16 is screwed in a threaded groove 15 penetrating through the outer wall of the second connecting port 9, and the tail end of the limit bolt 16 is screwed in a second threaded groove 17 in the outer wall of the connecting port 4. The end of the limiting bolt 16 penetrates through the thread groove 15 on the second connection port 9 and then is in threaded connection with the second thread groove 17 on the outer wall of the connection port 4, and the limiting bolt is used for reinforcing the connection port 4 and the second connection port 9.
And the oil inlet end of the oil outlet pipe 2 is provided with a third connecting port 19 with the structure consistent with that of the connecting port 4. Through a third connection port 19 for communication with the supply end of the flowline 2.
This oil pipe joint for engineering machine tool, the end of producing oil pipe 2 sets up and advances oil pipe 1 oil feed and serve connection port 4 of 9 looks spiro couplings of second connection port, and set up the butt joint sealing tube 3 of butt joint fixed through annular groove 5 and second annular groove 13 in second connection port 9 and connection port 4 are inside, butt joint sealing tube 3 is used for sealing again interconnect's second connection port 9 and connection port 4 are inside, and play the effect of support between connection port 4 and the second connection port 9, further improve the fastness that connection port 4 and second connection port 9 are connected.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an oil pipe joint for engineering machine tool, includes into oil pipe (1), goes out oil pipe (2), butt joint sealing tube (3), its characterized in that: the oil outlet end of the oil outlet pipe (2) is integrally provided with a connecting port (4), an annular groove (5) is arranged on a connecting surface at the tail end of the connecting port (4), the annular groove (5) is arranged on the outer side of an oil outlet (6) on the connecting port (4) and is coaxial with the oil outlet (6), inner sealing gaskets (7) and outer sealing gaskets (8) are respectively arranged on the inner wall and the outer wall of two ends of the butt sealing pipe (3), the bottom end of the butt sealing pipe (3) is clamped into the annular groove (5) and is tightly sealed through the inner sealing gaskets (7) and the outer sealing gaskets (8);
the oil feed end of oil feed pipe (1) runs through locate in second connection port (9) and through limiting plate (10) spacing in second connection port (9), top surface is equipped with second annular groove (13) with butt joint sealing tube (3) top butt joint in second connection port (9), the inner wall upper portion of butt joint sealing tube (3) is equipped with and supports tight annular spacing collar (11) with limiting plate (10), inner screw groove (12) of second connection port (9) inner wall are fixed with outer thread (20) spiro union of connection port (4) outer wall.
2. The oil pipe joint for construction machinery according to claim 1, wherein: the inner widths of the annular groove (5) and the second annular groove (13) are larger than the thickness of the butt sealing pipe (3) by 1 mm.
3. The oil pipe joint for construction machinery according to claim 1, wherein: the diameter of the limiting plate (10) is consistent with the inner diameter of the butt sealing pipe (3), and a sealing rubber pad (14) is arranged between the top surface of the limiting plate (10) and the inner top surface of the second connecting port (9).
4. The oil pipe joint for construction machinery according to claim 1, wherein: a limit bolt (16) is screwed in a thread groove (15) penetrating through the outer wall of the second connecting port (9), and the tail end of the limit bolt (16) is screwed in a second thread groove (17) in the outer wall of the connecting port (4).
5. The oil pipe joint for construction machinery according to claim 1, wherein: the bottom end of the limiting plate (10) is provided with a connection oil pipe (18) connected with the inside of the oil inlet pipe (1), and the connection oil pipe (18) is connected with the inner wall of the oil outlet end of the oil outlet pipe (2) in an inserting mode.
6. The oil pipe joint for construction machinery according to claim 1, wherein: and the oil inlet end of the oil outlet pipe (2) is provided with a third connecting port (19) which has the same structure as the connecting port (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123412656.9U CN216643459U (en) | 2021-12-31 | 2021-12-31 | Oil pipe joint for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123412656.9U CN216643459U (en) | 2021-12-31 | 2021-12-31 | Oil pipe joint for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216643459U true CN216643459U (en) | 2022-05-31 |
Family
ID=81725458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123412656.9U Active CN216643459U (en) | 2021-12-31 | 2021-12-31 | Oil pipe joint for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216643459U (en) |
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2021
- 2021-12-31 CN CN202123412656.9U patent/CN216643459U/en active Active
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