Turbocharger tubing head

Abstract

The utility model discloses a turbocharger tubing head, which belongs to the technical field of high-pressure tubing and is characterized in that the turbocharger tubing head comprises a steel pipe, a sleeve joint piece is arranged on the outer side of the steel pipe, and a pipe joint is in threaded connection with the inside of the sleeve joint piece. The positioning frame is located on the outer side of the pipe joint and plays a role in positioning the pipe joint and limiting transverse movement of the pipe joint, and the connecting piece fixedly connects the sleeving piece and the positioning frame, so that the whole reinforcing mechanism and the sleeving piece form an integral structure, the stability of the structure is enhanced, and therefore when a vehicle encounters a bumpy road condition in the driving process, the vehicle can be prevented from being damaged. The positioning frame can prevent the pipe joint from transverse displacement caused by external force impact, so that the stability of threaded connection is protected, meanwhile, the reinforcing piece is fixed to the inner side of the positioning frame and makes close contact with the outer side of the pipe joint, and the radial supporting force of the pipe joint is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure oil pipes, in particular to an oil pipe head for a turbocharger. Background Art

[0002] The engine's oil pipe usually works in a high temperature and humid environment. At the same time, it needs to transport oil and water inside the engine and support the weight of the turbocharger. It is the lifeblood of the engine and its role cannot be underestimated. Therefore, there are high requirements for the heat resistance, strength and hardness of the oil pipe.

[0003] During on-site assembly and testing, it was discovered that cracks appeared at the welds on the turbocharger pipe flanges. It was discovered that the welding method used was argon arc welding followed by brazing, which can easily penetrate the pipe and is invisible from the outside. The operating pressure and temperature of a turbocharged engine are significantly higher than those of a naturally aspirated engine, requiring the engine to have higher sealing and strength capabilities to ensure durability under high loads. Once cracks appear in the pipes, they can have a fatal impact on engine performance. This phenomenon typically requires repair or replacement of the pipe heads to resolve air and water leaks. Replacing the pipe heads not only makes repairs difficult, but also results in a serious waste of resources and increased costs.

[0004] An existing patent (publication number: CN207686838U) discloses a turbocharger oil pipe head, which belongs to the field of high-pressure oil pipe technology. The turbocharger oil pipe head includes a steel pipe and a pipe joint, and is characterized in that the steel pipe and the pipe joint are connected in a detachable manner, and the outside of the pipe joint is detachably connected to a socket. The end of the socket is provided with a flange, which is clamped in the annular groove of the steel pipe. The steel pipe is also provided with a plurality of sealing grooves for installing sealing rings. The beneficial effect of this utility model is that the components of the turbocharger oil pipe head are easy to disassemble and replace, which improves the interchangeability of parts, reduces costs, and has a stronger connection, better sealing, and a longer service life.

[0005] In response to the above problems, existing patents have provided solutions. However, although the double-layer threaded connection used in the above patents increases the reliability of the connection to a certain extent, the threaded connection itself mainly relies on the friction between the threads to maintain tightness. Under vibration and bumpy conditions, this friction is easily destroyed. Once the threads are loose, the sealing of the oil pipe head will be destroyed, resulting in oil leakage, which will not only affect the normal lubrication of the turbocharger, but may also cause engine failures, such as increased wear of parts. Moreover, because the turbocharger faces high temperature, high pressure and continuous vibration environment when working, the vehicle will also experience various bumpy road conditions during driving. These factors will have a serious impact on the connection stability of the oil pipe head. For example, when the engine is running at high speed, the high-frequency vibration generated by the turbocharger will be transmitted to the threaded connection of the oil pipe head. Long-term vibration will gradually reduce the preload force between the threads, resulting in loose connection.

[0006] Therefore, a turbocharger oil pipe head is proposed. Utility Model Content

[0007] The purpose of the present utility model is to provide a turbocharger oil pipe head, which can solve the problem that the double-layer threaded connection adopted in the above-mentioned patent increases the reliability of the connection to a certain extent, but the threaded connection itself mainly relies on the friction between the threads to maintain tightness. Under vibration and bumpy conditions, this friction is easily destroyed. Once the threads are loose, the sealing of the oil pipe head will be destroyed, resulting in oil leakage, which will not only affect the normal lubrication of the turbocharger, but may also cause engine failures, such as increased wear of parts, etc. Moreover, because the turbocharger faces high temperature, high pressure and continuous vibration environment when working, the vehicle will also experience various bumpy road conditions during driving. These factors will have a serious impact on the connection stability of the oil pipe head. For example, when the engine is running at high speed, the high-frequency vibration generated by the turbocharger will be transmitted to the threaded connection of the oil pipe head. Long-term vibration will gradually reduce the preload force between the threads, resulting in loose connection problems.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a turbocharger oil pipe head, comprising a steel pipe, a socket provided on the outside of the steel pipe, a pipe joint being threadedly connected to the inside of the socket, the inside of the pipe joint being threadedly connected to the outside of the steel pipe, a reinforcement mechanism being provided on the rear side of the socket, the reinforcement mechanism being located on the outside of the steel pipe, and a sealing structure being provided on the outside of the steel pipe;

[0009] The reinforcement mechanism includes a connecting piece fixedly connected to the four sides of the rear side of the socket, a positioning frame fixedly connected to the rear side of the connecting piece, the positioning frame is located on the outside of the pipe joint, a reinforcing piece is fixedly connected to the inside of the positioning frame, a locking drawstring is provided inside the positioning frame, and the locking drawstring is located on the outside of the pipe joint.

[0010] Preferably, an auxiliary fixing component is provided on the outer side of the pipe joint, and the auxiliary fixing component includes a positioning groove opened on the surface of the pipe joint.

[0011] Preferably, an inner lining plate is fixedly connected to the interior of the positioning groove, and the inner lining plate is located on the inner side of the positioning frame and the locking strap.

[0012] Preferably, an anti-slip sheet is fixedly connected to the outer side of the inner lining plate, and the outer side of the anti-slip sheet is in contact with the inner side of the reinforcement sheet.

[0013] Preferably, the sealing structure includes a groove opened on the surface of the steel pipe, and the groove is located on the inner side of the pipe joint.

[0014] Preferably, a sealing gasket is fixedly connected to the inside of the groove, a tooth groove is provided on the outside of the sealing gasket, and the inner side of the sealing gasket is in contact with the outer side of the pipe joint.

[0015] Preferably, a first thread tooth is provided on the outer side of the steel pipe, a first thread groove is provided on the inside of the pipe joint, and the first thread groove is threadedly connected to the first thread tooth.

[0016] Preferably, a second thread groove is provided inside the sleeve, and a second thread tooth is provided on the outside of the pipe joint, and the second thread tooth is threadedly connected to the second thread groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This application sets a reinforcement mechanism. When the steel pipe, socket and pipe joint are threaded together, the positioning frame is located on the outside of the pipe joint, which plays a role in positioning the pipe joint and limiting its lateral movement. The connecting piece fixes the socket and the positioning frame, so that the entire reinforcement mechanism and the socket become an integral structure, which enhances the stability of the structure. When the vehicle encounters bumpy road conditions during driving, the positioning frame can prevent the pipe joint from lateral displacement due to external force impact, thereby protecting the stability of the threaded connection. At the same time, the reinforcement piece is fixed to the positioning frame. The inner side is in close contact with the outer side of the pipe joint, which increases the radial support force of the pipe joint. When the turbocharger generates vibration during operation, the reinforcement sheet can suppress the vibration amplitude of the pipe joint and reduce the impact of vibration on the threaded connection. The locking strap is located on the outside of the pipe joint and inside the positioning frame. It can further tighten the positioning frame so that the positioning frame and the reinforcement sheet fit more closely to the outside of the pipe joint. When the engine runs at high speed and the turbocharger generates high-frequency vibration, the locking strap can prevent the positioning frame and the reinforcement sheet from loosening due to vibration, and continuously maintain the reinforcement and locking effect on the pipe joint;

[0019] 2. This application sets up a steel pipe, a socket, a pipe joint and a sealing structure. The outer side of the steel pipe is connected to the pipe joint through the internal thread of the socket and the outer thread of the steel pipe to achieve a double-layer threaded connection. Under normal circumstances, this connection method can ensure the basic connection strength and sealing of the oil pipe head. The sealing structure is located on the outside of the steel pipe. It can further enhance the sealing effect on the basis of the threaded connection, ensuring that the oil pipe head will not leak when transporting oil, thereby ensuring that the turbocharger can be fully lubricated, maintain its normal working state, and avoid problems such as increased wear of engine parts due to insufficient lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the turbocharger oil pipe head of the utility model;

[0021] Figure 2 This is a planar structural diagram of the steel pipe of the utility model;

[0022] Figure 3 This is a structural diagram of the reinforcement mechanism of the utility model;

[0023] Figure 4 This is a structural diagram of the auxiliary components of the utility model;

[0024] Figure 5 This is a structural diagram of the sealing structure of the utility model.

[0025] In the figure, 1. steel pipe; 2. socket; 3. pipe joint; 4. reinforcement mechanism; 401. connecting plate; 402. positioning frame; 403. reinforcement plate; 404. locking pull strap; 5. auxiliary fixing component; 501. positioning groove; 502. inner lining plate; 503. anti-slip sheet; 6. sealing structure; 601. groove; 602. sealing gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , this utility model provides a technical solution:

[0028] A turbocharger oil pipe head includes a steel pipe 1, a socket 2 is provided on the outside of the steel pipe 1, a pipe joint 3 is threadedly connected to the inside of the socket 2, the inside of the pipe joint 3 is threadedly connected to the outside of the steel pipe 1, a reinforcement mechanism 4 is provided on the rear side of the socket 2, the reinforcement mechanism 4 is located on the outside of the steel pipe 1, and a sealing structure 6 is provided on the outside of the steel pipe 1;

[0029] The reinforcement mechanism 4 includes a connecting piece 401 fixedly connected to the four sides of the rear side of the socket 2, a positioning frame 402 is fixedly connected to the rear side of the connecting piece 401, the positioning frame 402 is located on the outside of the pipe joint 3, a reinforcing piece 403 is fixedly connected to the inside of the positioning frame 402, and a locking strap 404 is provided inside the positioning frame 402, and the locking strap 404 is located on the outside of the pipe joint 3.

[0030] In this embodiment, by providing a reinforcement mechanism 4, the connecting piece 401 firmly connects the socket 2 and the positioning frame 402, and the positioning frame 402 positions the pipe joint 3 and limits lateral movement. When the vehicle is bumpy, it can effectively prevent the pipe joint 3 from being laterally displaced due to external force impact, thereby protecting the stability of the threaded connection. The reinforcing piece 403 increases the radial support force of the pipe joint 3, suppresses its vibration amplitude when the turbocharger vibrates, and reduces the impact on the threaded connection. The locking pull belt 404 further tightens the positioning frame 402. When the engine is at high speed and the turbocharger vibrates at high frequency, it prevents the positioning frame 402 and the reinforcing piece 403 from loosening, continuously maintaining the reinforcement and locking effect on the pipe joint 3, thereby ensuring that the threaded connection is not loose and the reliability of the oil pipe head connection is ensured. The basic connection strength and sealing performance are guaranteed by the double-layer threaded connection between the steel pipe 1 and the pipe joint 3. The sealing structure 6 further enhances the sealing effect, fills the small gap in the threaded connection part, prevents oil leakage, ensures that the turbocharger is fully lubricated, maintains normal working condition, and avoids problems such as increased wear of engine parts due to insufficient lubrication.

[0031] Specifically, such as Figure 4 As shown, an auxiliary fixing component 5 is provided on the outer side of the pipe joint 3 , and the auxiliary fixing component 5 includes a positioning groove 501 opened on the surface of the pipe joint 3 .

[0032] Specifically, such as Figure 4 As shown, an inner lining plate 502 is fixedly connected to the interior of the positioning groove 501 , and the inner lining plate 502 is located on the inner side of the positioning frame 402 and the locking strap 404 .

[0033] Specifically, such as Figure 4 As shown, the outer side of the inner lining plate 502 is fixedly connected with an anti-slip sheet 503 , and the outer side of the anti-slip sheet 503 is in contact with the inner side of the reinforcing sheet 403 .

[0034] In this embodiment: by setting the auxiliary fixing component 5, the positioning groove 501 provides a fixed position for the inner lining plate 502, and the anti-slip sheet 503 on the inner lining plate 502 contacts the inner side of the reinforcing sheet 403. When the reinforcing mechanism 4 reinforces the pipe joint 3, the anti-slip sheet 503 can increase the friction between the reinforcing sheet 403 and the pipe joint 3, further preventing the pipe joint 3 from sliding in the positioning frame 402, thereby improving the accuracy and stability of the positioning of the pipe joint 3 and ensuring the reliability of the oil pipe head connection.

[0035] Specifically, such as Figure 5 As shown, the sealing structure 6 includes a groove 601 opened on the surface of the steel pipe 1 , and the groove 601 is located on the inner side of the pipe joint 3 .

[0036] Specifically, such as Figure 5 As shown, a sealing gasket 602 is fixedly connected to the interior of the groove 601 , a tooth groove is provided on the outer side of the sealing gasket 602 , and the inner side of the sealing gasket 602 contacts the outer side of the pipe joint 3 .

[0037] In this embodiment: the groove 601 provides an installation position for the sealing gasket 602, and the outer tooth groove of the sealing gasket 602 can increase the contact area between the sealing gasket 602 and the outer side of the pipe joint 3 and the surrounding structure, thereby improving the sealing effect. The inner side of the sealing gasket 602 contacts the outer side of the pipe joint 3, effectively filling the gap between the two, preventing oil leakage, and ensuring normal lubrication of the turbocharger.

[0038] Specifically, such as Figure 5 As shown, a first thread tooth is provided on the outer side of the steel pipe 1, and a first thread groove is provided on the inner side of the pipe joint 3, and the first thread groove is threadedly connected to the first thread tooth.

[0039] Specifically, such as Figure 5 As shown, a second thread groove is provided inside the sleeve 2, and a second thread tooth is provided on the outside of the pipe joint 3, and the second thread tooth is threadedly connected to the second thread groove.

[0040] In this embodiment: the steel pipe 1 and the pipe joint 3 are initially fixed by the threaded connection between the first thread teeth and the first thread groove, which provides basic connection strength for the oil pipe head, ensures the integrity of the oil pipe head structure under normal working conditions, and ensures that the oil can be normally transmitted between the steel pipe 1 and the pipe joint 3. In addition, the threaded connection between the second thread teeth and the second thread groove further enhances the connection strength between the pipe joint 3 and the socket 2, and works together with the connection between the steel pipe 1 and the pipe joint 3 to improve the stability of the entire oil pipe head structure, ensure that the oil pipe head will not loosen or the connection will fail in a complex working environment, and ensure the normal operation of the turbocharger.

[0041] Working principle: During the use of the turbocharger oil pipe head, the first thread teeth on the outside of the steel pipe 1 are threadedly connected with the first thread groove inside the pipe joint 3, and the second thread groove inside the socket 2 is threadedly connected with the second thread teeth on the outside of the pipe joint 3, thereby achieving a tight connection between the steel pipe 1, the socket 2 and the pipe joint 3, providing basic structural strength for the entire oil pipe head. At the same time, the positioning groove 501 on the outside of the pipe joint 3 and the inner lining plate 502 and the anti-slip sheet 503 inside it cooperate with the positioning frame 402 and the reinforcement sheet 403 of the reinforcement mechanism 4 to accurately position the pipe joint 3 during installation, ensure the accurate connection position of each component, and prevent the pipe joint 3 from being displaced during use. At the same time, the socket 2 and the positioning frame 402 are fixedly connected through the connecting sheet 401. The positioning frame 402 is located on the outside of the pipe joint 3, and the reinforcement sheet on its inside 403 is in close contact with the anti-slip sheet 503 on the inner lining plate 502, which increases the radial supporting force of the pipe joint 3 and suppresses the vibration amplitude of the pipe joint 3 when the turbocharger is working and the vehicle is bumpy. The locking pull belt 404 inside the positioning frame 402 further tightens the positioning frame 402, keeps the reinforcing sheet 403 in close fit with the pipe joint 3, ensures that the pipe joint 3 will not loosen in a complex environment, ensures the stability of the oil pipe head connection, and, through the sealing gasket 602 in the groove 601 on the surface of its steel pipe 1, the tooth groove on its outer side increases the contact area with the outer side of the pipe joint 3, and the inner side is in close contact with the outer side of the pipe joint 3, effectively filling the gap between the two to prevent oil leakage. The sealing gasket 602 continues to maintain good sealing performance throughout the use of the oil pipe head, ensuring that the turbocharger can be fully lubricated and maintain its normal working condition.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turbocharger oil pipe head, comprising a steel pipe (1), characterized in that: A sleeve connector (2) is provided on the outside of the steel pipe (1), the interior of the sleeve connector (2) is threadedly connected to a pipe joint (3), the interior of the pipe joint (3) is threadedly connected to the outside of the steel pipe (1), a reinforcement mechanism (4) is provided on the rear side of the sleeve connector (2), the reinforcement mechanism (4) is located on the outside of the steel pipe (1), and a sealing structure (6) is provided on the outside of the steel pipe (1); The reinforcing mechanism (4) comprises a connecting piece (401) fixedly connected to the four sides of the rear side of the socket (2); a positioning frame (402) is fixedly connected to the rear side of the connecting piece (401); the positioning frame (402) is located outside the pipe joint (3); a reinforcing piece (403) is fixedly connected to the inside of the positioning frame (402); a locking drawstring (404) is provided inside the positioning frame (402); and the locking drawstring (404) is located outside the pipe joint (3).

2. The turbocharger oil pipe head according to claim 1, characterized in that: An auxiliary fixing component (5) is provided on the outside of the pipe joint (3), and the auxiliary fixing component (5) comprises a positioning groove (501) provided on the surface of the pipe joint (3).

3. The turbocharger oil pipe head according to claim 2, characterized in that: An inner lining plate (502) is fixedly connected to the interior of the positioning groove (501), and the inner lining plate (502) is located on the inner side of the positioning frame (402) and the locking drawstring (404).

4. The turbocharger oil pipe head according to claim 3, characterized in that: The outer side of the inner lining plate (502) is fixedly connected with an anti-slip sheet (503), and the outer side of the anti-slip sheet (503) is in contact with the inner side of the reinforcing sheet (403).

5. The turbocharger oil pipe head according to claim 1, characterized in that: The sealing structure (6) comprises a groove (601) formed on the surface of the steel pipe (1), and the groove (601) is located on the inner side of the pipe joint (3).

6. The turbocharger oil pipe head according to claim 5, characterized in that: A sealing gasket (602) is fixedly connected to the interior of the groove (601), a tooth groove is provided on the exterior of the sealing gasket (602), and the interior of the sealing gasket (602) contacts the exterior of the pipe joint (3).

7. The turbocharger oil pipe head according to claim 1, characterized in that: The outer side of the steel pipe (1) is provided with a first thread tooth, and the inner side of the pipe joint (3) is provided with a first thread groove, and the first thread groove is threadedly connected to the first thread tooth.

8. The turbocharger oil pipe head according to claim 1, characterized in that: A second thread groove is provided inside the sleeve (2), and a second thread tooth is provided on the outside of the pipe joint (3), and the second thread tooth is threadedly connected to the second thread groove.

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