Oil pipe butt joint with arc-shaped curved surface sealing structure
By setting up an arc-shaped curved sealing structure on the oil pipe joint, the sealing performance under high pressure is achieved using the arc port and the sealing ring, which solves the problem of sealing failure in the oil pipe joint in the prior art, and significantly improves the sealing performance of the oil pipe joint.
Patent Information
- Application Number
- CN202421037829.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing oil pipe joints are prone to seal failure under high pressure, resulting in oil leakage, affecting combustion rate and causing environmental pollution.
The oil pipe joint with an arc-shaped curved surface sealing structure is adopted. The sealing performance under high pressure is achieved by setting an arc port and a sealing groove on the joint.
The minimum blasting pressure is maintained at 2.0MPa environment, and the oil pipe joints have no leakage after 5 minutes of testing, which significantly improves the sealing performance under high pressure.
Smart Images
Figure CN222276817U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of oil pipe connection, and in particular relates to an oil pipe butt joint with an arc-shaped curved surface sealing structure. Background Art
[0002] The reliable circulation of the three major mediums of the engine - oil (fuel and lubricating oil), water, and gas - is a prerequisite for its normal operation. The oil and water pipelines, as well as the intake and exhaust pipes, are important structures to ensure the complete circulation of oil, water, and gas. The layout of the oil pipes is intricate, and generally they are long and have many bends, so the connection between the oil pipes needs to be connected with joints to reduce the length of the oil pipes and the floor space occupied.
[0003] Most of today's oil pipe joints use double-threaded or flanged connections. When the pressure inside the oil pipe is high, the seal is prone to failure, resulting in oil leakage at the interface. At the very least, it will affect the combustion rate, cause resource waste and environmental pollution, and at worst, it may cause fatal failures. Utility Model Content
[0004] In order to make up for the deficiencies of the prior art, the utility model provides an oil pipe joint with an arc-shaped curved surface sealing structure, so as to ensure the sealing performance of the oil pipeline under high pressure.
[0005] The oil pipe joint with an arc-shaped curved surface sealing structure, the oil pipe includes a first oil pipe, a second oil pipe and a third oil pipe, the second oil pipe is a hose, and its two ends are respectively connected to the first oil pipe and the third oil pipe, the other end of the first oil pipe is provided with a joint, and the other end of the third oil pipe is provided with a sleeve; the joint is provided with an external thread, and an arc opening is provided at one end away from the first oil pipe, and a sealing groove is provided on the arc-shaped end face of the arc opening to cooperate with the installation of a sealing ring to achieve sealed docking with the docking equipment.
[0006] Furthermore, the butt joint is fixed to the first oil pipe by welding, and the inner diameter of the first oil pipe is smaller than the inner diameter of the butt joint.
[0007] Furthermore, one end of the arc opening on the docking joint is a docking port, and the other end is provided with an oblique cut, and the outer diameter of the oblique cut is greater than the outer diameter of the arc opening.
[0008] Furthermore, the first oil pipe and the third oil pipe are both metal pipes.
[0009] Furthermore, a bracket is welded on the first oil pipe to install and fix the oil pipe.
[0010] Furthermore, a pipe clamp is provided on the third oil pipe, and the pipe clamp is clamped with the third oil pipe through a rubber sleeve.
[0011] Furthermore, the second oil pipe is a steel wire braided hose, and its outer wall is covered with a flame retardant layer.
[0012] Furthermore, a retaining ring is provided at one end of the third oil pipe away from the second oil pipe, the inner diameter of the retaining ring is larger than the inner diameter of the third oil pipe, and the inner wall of the retaining ring is provided with a flared structure; the outer diameter of the retaining ring is smaller than the inner diameter of the sleeve, and a chamfer is provided at one end of the sleeve close to the retaining ring.
[0013] Compared with the prior art, the utility model has the following advantages: compared with the existing oil pipe joint, the utility model sets an arc mouth at the port of the joint and sets a sealing ring on the arc end face of the arc mouth, and seals and connects with the docking equipment through the arc mouth structure and the sealing ring, which further ensures the sealing of the oil pipeline under high pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is one of the schematic diagrams of the structure of the utility model;
[0015] Figure 2 This is the second schematic diagram of the structure of the utility model;
[0016] Figure 3 For this utility model Figure 2 Sectional view at AA;
[0017] Figure 4 This is the third schematic diagram of the structure of the utility model;
[0018] Figure 5 For this utility model Figure 4 Cross-sectional view at BB in the middle.
[0019] In the figure: 1-first oil pipe, 2-second oil pipe, 3-third oil pipe, 31-retaining ring, 4-joint, 41-arc mouth, 42-sealing groove, 43-bevel cut, 5-sleeve, 51-chamfer, 6-sealing ring, 7-bracket, 8-pipe clamp, 9-rubber sleeve. DETAILED DESCRIPTION
[0020] In order to make the technical solution of the present invention more clearly understood by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0021] like Figure 1-Figure 5As shown, a tubing joint with an arc-shaped curved surface sealing structure is provided. The tubing comprises a first tubing 1, a second tubing 2 and a third tubing 3. The second tubing 2 is a hose, and its two ends are respectively connected to the first tubing 1 and the third tubing 3. A joint 4 is provided at the other end of the first tubing 1, and a sleeve 5 is provided at the other end of the third tubing 3. An external thread (not shown) is provided on the joint 4, and an arc-shaped opening 41 is provided at one end of the joint 4 away from the first tubing 1, and a sealing groove 42 is provided on the arc-shaped end surface of the arc-shaped opening 41 to cooperate with a sealing ring 6 to achieve sealed docking with a docking device.
[0022] In the present application, the second oil pipe 2 is a steel wire braided hose, and its outer wall is covered with a flame retardant layer; the first oil pipe 1 and the third oil pipe 3 are both metal pipes. The butt joint 4 is welded and fixed to the end of the first oil pipe 1, and the inner diameter of the first oil pipe 1 is smaller than the inner diameter of the butt joint 4. One end of the arc opening 41 on the butt joint 4 is a butt joint, and the other end is provided with an oblique cut 43, and the outer diameter of the oblique cut 43 is larger than the outer diameter of the arc opening 41. A bracket 7 is also welded on the first oil pipe 1 to facilitate the installation and fixation of the oil pipe.
[0023] like Figure 4-Figure 5 As shown, a pipe clamp 8 is provided on the third oil pipe 3, and the pipe clamp 8 is clamped with the third oil pipe 3 through a rubber sleeve 9. A retaining ring 31 is provided at one end of the third oil pipe 3 away from the second oil pipe 2, and the inner diameter of the retaining ring 31 is larger than the inner diameter of the third oil pipe 3, and the inner wall of the retaining ring 31 is provided with a flared structure; the outer diameter of the retaining ring 31 is smaller than the inner diameter of the sleeve 5, and a chamfer 51 is provided at one end of the sleeve 5 close to the retaining ring 31.
[0024] Under normal circumstances, the working pressure of the oil pipe in this application is 1.0MPa. The pressure test is carried out in a 2.0MPa environment, and the minimum bursting pressure is maintained at not less than 4.0MPa during the experiment. After 5 minutes of testing, there is no leakage at the oil pipe joint.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. An oil pipe joint with an arc-shaped curved surface sealing structure, characterized in that: The oil pipe comprises a first oil pipe (1), a second oil pipe (2) and a third oil pipe (3); the second oil pipe (2) is a hose, and its two ends are respectively connected to the first oil pipe (1) and the third oil pipe (3); the other end of the first oil pipe (1) is provided with a docking joint (4), and the other end of the third oil pipe (3) is provided with a sleeve (5); the docking joint (4) is provided with an external thread, and an arc opening (41) is provided at one end thereof away from the first oil pipe (1); a sealing groove (42) is provided on the arc end surface of the arc opening (41) to cooperate with a sealing ring (6) to achieve sealed docking with a docking device.
2. The oil pipe joint with an arc-shaped curved surface sealing structure according to claim 1, characterized in that: The butt joint (4) is fixed to the first oil pipe (1) by welding, and the inner diameter of the first oil pipe (1) is smaller than the inner diameter of the butt joint (4).
3. The oil pipe joint with an arc-shaped curved surface sealing structure according to claim 2, characterized in that: One end of the arc opening (41) on the docking joint (4) is a docking port, and the other end is provided with an oblique cut (43), wherein the outer diameter of the oblique cut (43) is greater than the outer diameter of the arc opening (41).
4. The oil pipe joint with an arc-shaped curved surface sealing structure according to claim 1, characterized in that: The first oil pipe (1) and the third oil pipe (3) are both metal pipes.
5. The oil pipe joint with an arc-shaped curved surface sealing structure according to claim 4, characterized in that: A bracket (7) is welded on the first oil pipe (1) and is used for installing and fixing the oil pipe.
6. The oil pipe joint with an arc-shaped curved surface sealing structure according to claim 4, characterized in that: A pipe clamp (8) is provided on the third oil pipe (3), and the pipe clamp (8) is clamped to the third oil pipe (3) via a rubber sleeve (9).
7. The oil pipe joint with an arc-shaped curved surface sealing structure according to any one of claims 1 to 6, characterized in that: The second oil pipe (2) is a steel wire braided hose, the outer wall of which is covered with a flame retardant layer.
8. The oil pipe joint with an arc-shaped curved surface sealing structure according to any one of claims 1 to 6, characterized in that: A retaining ring (31) is provided at one end of the third oil pipe (3) away from the second oil pipe (2); the inner diameter of the retaining ring (31) is larger than the inner diameter of the third oil pipe (3), and the inner wall of the retaining ring (31) is provided with a flared structure; the outer diameter of the retaining ring (31) is smaller than the inner diameter of the sleeve (5), and a chamfer (51) is provided at one end of the sleeve (5) close to the retaining ring (31).