Automobile engine oil cooler shell structure capable of preventing oil leakage

By designing limiting components and fixing bolts, the problem of oil leakage caused by loose threaded connections in automotive oil coolers has been solved, achieving higher sealing performance and stability.

CN223839209UActive Publication Date: 2026-01-27YANGZHOU SHUANGYING IND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520606200.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-01-27
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Existing automotive oil coolers are prone to oil leakage due to loose threaded connections, resulting in decreased sealing performance and long-term use.

Method used

A limiting component is designed, including a support sleeve, a movable rod, a first fixed plate, a movable block, and a limiting rod. The threaded sleeve is fixed by inserting the limiting rod into the limiting groove of the support sleeve, and the stability is improved by combining it with the fixing bolts to prevent loosening.

Benefits of technology

It effectively prevents oil leakage at the connection between the oil cooler and the car's oil pipe, improves sealing performance and connection stability, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223839209U_ABST
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Abstract

The utility model discloses an automobile engine oil cooler shell structure capable of preventing oil leakage, which relates to the technical field of engine oil cooler shells and comprises an engine oil cooler shell, and one side of the top of the engine oil cooler shell is fixedly connected with an oil inlet pipe. By arranging the limiting assembly, the first fixing plate can be pressed downwards, the first fixing plate can drive the movable block to slide in the supporting sleeve through the movable rod, and when the movable block makes contact with the limiting block, the limiting rod can be pushed, so that the limiting rod is inserted into a limiting groove formed in the side face of the supporting sleeve; the first fixing plate limits and fixes the position of the threaded sleeve, and the phenomena that vibration generated when an automobile engine works easily enables the threaded sleeve to loosen, the sealing performance of the threaded sleeve is reduced, and oil leakage happens to the connecting position of the engine oil cooler and the automobile engine oil connecting pipe for a long time are avoided; therefore, convenience is brought to the use of the automobile engine oil cooler.
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Description

Technical Field

[0001] This utility model relates to the field of oil cooler housing technology, and in particular to an automotive oil cooler housing structure that prevents oil leakage. Background Technology

[0002] The function of an oil cooler is to dissipate heat from the engine oil, prevent the oil from overheating, and ensure the normal operation of the engine. Oil coolers are generally divided into water-cooled and air-cooled types. Air-cooled car oil coolers are quite different from water-cooled ones. They are composed of many cooling pipes and cooling plates. During vehicle operation, they use the airflow from the car to cool the hot engine oil.

[0003] However, in the use of existing automotive oil coolers, since most of them are installed near the car engine, and the car's oil connection pipe is usually connected to the oil cooler's connection pipe by a threaded fastener, the vibration generated by the car engine during operation can easily cause the threaded connection sleeve to loosen, reducing its sealing performance. Over time, this can lead to oil leakage at the connection between the oil cooler and the car's oil connection pipe, thus causing inconvenience in the use of the automotive oil cooler.

[0004] Therefore, it is necessary to propose a new structure for the housing of an automotive oil cooler to prevent oil leakage and solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a housing structure for an automotive oil cooler that prevents oil leakage, in order to solve the problem mentioned in the background art that the vibration generated by the automotive engine during operation can easily cause the threaded connection sleeve to loosen, reduce its sealing performance, and over time, cause oil leakage at the connection between the oil cooler and the automotive oil connection pipe, thus bringing inconvenience to the use of the automotive oil cooler.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car oil cooler housing structure to prevent oil leakage, comprising an oil cooler housing, an oil inlet pipe fixedly connected to one side of the top of the oil cooler housing, and an oil outlet pipe fixedly connected to the other side of the top of the oil cooler housing, both the oil inlet pipe and the oil outlet pipe being threadedly connected to the outside of a threaded sleeve, and a connecting pipe fixedly connected to the top of the threaded sleeve.

[0007] The top of the oil cooler housing is provided with a limiting assembly, which includes a support sleeve, a movable rod, a first fixed plate, a movable block, and a limiting rod. The bottom of the support sleeve is fixedly connected to the top of the oil cooler housing, and the inside of the support sleeve is slidably connected to the outside of the movable rod. The top of the movable rod is fixedly connected to the bottom of the first fixed plate, and the bottom of the movable rod is fixedly connected to the top of the movable block. The inside of the movable block is inserted into the outside of the limiting rod.

[0008] Preferably, the outer side of the movable block is slidably connected to the inner side of the support sleeve, a sliding groove is provided on one side of the support sleeve, the sliding groove is slidably connected to the limiting rod, and a limiting groove is provided on the other side of the support sleeve, the limiting groove is inserted into the limiting rod.

[0009] Preferably, a spring is fixedly connected to the bottom of the movable block, and the bottom end of the spring is fixedly connected to the bottom of the inner cavity of the support sleeve;

[0010] A limit block is fixedly connected to the side of the inner cavity of the support sleeve.

[0011] Preferably, the first fixing plate is internally threaded with a fixing bolt, and a second fixing plate is inserted into the outside of the fixing bolt. The first fixing plate and the second fixing plate are located outside the connecting pipe.

[0012] Preferably, a rubber pad is fixedly connected to the bottom of the first fixing plate, and the first fixing plate is located at the top of the threaded sleeve.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. By setting a limiting component, when the threaded sleeve is connected to the oil inlet and outlet pipes, the first fixing plate can be pressed down. The first fixing plate will drive the movable block to slide inside the support sleeve through the movable rod. The movable block will drive the limiting rod to slide inside the slide groove. When the movable block contacts the limiting block, the limiting rod can be pushed so that the limiting rod is inserted into the limiting groove opened on the side of the support sleeve, limiting and fixing the first fixing plate. This prevents the threaded sleeve from loosening due to vibration generated by the car engine during operation, which would reduce its sealing performance and cause oil leakage at the connection between the oil cooler and the oil inlet and outlet pipes of the car oil over time. This brings convenience to the use of the car oil cooler.

[0015] 2. By setting the first fixing plate and the second fixing plate, the connecting pipe can be locked by fixing bolts using the first fixing plate and the second fixing plate. This improves the stability of fixing the threaded sleeve and also protects the connection between the threaded sleeve and the connecting pipe. This prevents the connecting pipe from being subjected to excessive bending during connection, which could damage the connection between the threaded sleeve and the connecting pipe and cause oil leakage. This further improves the oil leakage prevention effect of the device. Attached Figure Description

[0016] Figure 1 This is a partial sectional view of the front of the housing structure of the automotive oil cooler that prevents oil leakage, according to this utility model.

[0017] Figure 2 This is a front view of the oil cooler housing in this utility model.

[0018] Figure 3 In this utility model Figure 1 Enlarged diagram of point A.

[0019] Figure 4 This is a top view of the first fixing plate in this utility model.

[0020] In the diagram: 1. Oil cooler housing; 2. Oil inlet pipe; 3. Oil outlet pipe; 4. Threaded sleeve; 5. Connecting pipe; 6. Support sleeve; 7. Movable rod; 8. First fixed plate; 9. Movable block; 10. Spring; 11. Limiting block; 12. Slide groove; 13. Limiting rod; 14. Rubber pad; 15. Fixing bolt; 16. Second fixed plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figures 1-4 The diagram shows a leak-proof automotive oil cooler housing structure, comprising an oil cooler housing 1. An oil inlet pipe 2 is fixedly connected to one side of the top of the oil cooler housing 1, and an oil outlet pipe 3 is fixedly connected to the other side of the top of the oil cooler housing 1. Both the oil inlet pipe 2 and the oil outlet pipe 3 are threadedly connected to a threaded sleeve 4. A connecting pipe 5 is fixedly connected to the top of the threaded sleeve 4. The connecting pipe 5 for automotive oil can be connected using the oil inlet pipe 2 and the oil outlet pipe 3 to form an oil passage, facilitating the cooling of the engine oil using the oil cooler housing 1.

[0023] In addition, a limiting assembly is provided on the top of the oil cooler housing 1. The limiting assembly includes a support sleeve 6, a movable rod 7, a first fixed plate 8, a movable block 9, and a limiting rod 13. The bottom of the support sleeve 6 is fixedly connected to the top of the oil cooler housing 1, and the inside of the support sleeve 6 is slidably connected to the outside of the movable rod 7. The top of the movable rod 7 is fixedly connected to the bottom of the first fixed plate 8, and the bottom of the movable rod 7 is fixedly connected to the top of the movable block 9. The inside of the movable block 9 is inserted into the outside of the limiting rod 13. The limiting assembly can be used to limit and fix the threaded sleeve 4.

[0024] The movable block 9 is slidably connected to the outside of the support sleeve 6. A groove 12 is provided on one side of the support sleeve 6, which is slidably connected to a limiting rod 13. A limiting groove is provided on the other side of the support sleeve 6, which is inserted into the limiting rod 13. A spring 10 is fixedly connected to the bottom of the movable block 9, and the bottom end of the spring 10 is fixedly connected to the bottom of the inner cavity of the support sleeve 6. A limiting block 11 is fixedly connected to the side of the inner cavity of the support sleeve 6. A rubber pad 14 is fixedly connected to the bottom of the first fixing plate 8, and the first fixing plate 8 is located at the top of the threaded sleeve 4. When the threaded sleeve 4 is connected to the oil inlet pipe 2 and the oil outlet pipe 3, the first fixing plate 8 can be pressed down. The first fixing plate 8 will drive the movable block 9 to slide inside the support sleeve 6 through the movable rod 7. The movable block 9 will drive the limiting rod 13 to slide inside the slide groove 12. When the movable block 9 contacts the limiting block 11, the limiting rod 13 can be pushed so that the limiting rod 13 is inserted into the limiting groove opened on the side of the support sleeve 6, limiting and fixing the first fixing plate 8. This prevents the threaded sleeve 4 from loosening due to vibration generated by the car engine during operation, which would reduce its sealing performance and cause oil leakage at the connection between the oil cooler and the car oil connection pipe 5 over time. This makes the use of the car oil cooler more convenient.

[0025] Finally, a fixing bolt 15 is threadedly connected to the inside of the first fixing plate 8, and a second fixing plate 16 is inserted into the outside of the fixing bolt 15. The first fixing plate 8 and the second fixing plate 16 are located outside the connecting pipe 5. The first fixing plate 8 and the second fixing plate 16 can be used to lock the connecting pipe 5 with the fixing bolt 15, which improves the stability of fixing the threaded sleeve 4 and also protects the connection between the threaded sleeve 4 and the connecting pipe 5. This prevents the connecting pipe 5 from being subjected to excessive bending during connection, which could damage the connection between the threaded sleeve 4 and the connecting pipe 5 and cause oil leakage. This further improves the oil leakage prevention effect of the device.

[0026] Working principle: When the threaded sleeve 4 is connected to the oil inlet pipe 2 and the oil outlet pipe 3, the first fixing plate 8 can be pressed down. The first fixing plate 8 will drive the movable block 9 to slide inside the support sleeve 6 through the movable rod 7. The movable block 9 will drive the limiting rod 13 to slide inside the slide groove 12. When the movable block 9 contacts the limiting block 11, it can push the limiting rod 13, so that the limiting rod 13 is inserted into the limiting groove opened on the side of the support sleeve 6, limiting and fixing the first fixing plate 8. This prevents the threaded sleeve 4 from loosening due to the vibration generated by the car engine during operation, which would reduce its sealing performance and cause oil leakage at the connection between the oil cooler and the car oil connection pipe 5 over time. This makes the use of the car oil cooler more convenient.

Claims

1. A leak-proof automotive oil cooler housing structure, comprising an oil cooler housing (1), characterized in that: An oil inlet pipe (2) is fixedly connected to one side of the top of the oil cooler housing (1), and an oil outlet pipe (3) is fixedly connected to the other side of the top of the oil cooler housing (1). Both the oil inlet pipe (2) and the oil outlet pipe (3) are threadedly connected to a threaded sleeve (4), and a connecting pipe (5) is fixedly connected to the top of the threaded sleeve (4). The top of the oil cooler housing (1) is provided with a limiting component, which includes a support sleeve (6), a movable rod (7), a first fixed plate (8), a movable block (9), and a limiting rod (13). The bottom of the support sleeve (6) is fixedly connected to the top of the oil cooler housing (1), and the inside of the support sleeve (6) is slidably connected to the outside of the movable rod (7). The top of the movable rod (7) is fixedly connected to the bottom of the first fixed plate (8), and the bottom of the movable rod (7) is fixedly connected to the top of the movable block (9). The inside of the movable block (9) is inserted into the outside of the limiting rod (13).

2. The automotive oil cooler housing structure for preventing oil leakage according to claim 1, characterized in that: The exterior of the movable block (9) is slidably connected to the interior of the support sleeve (6). A sliding groove (12) is provided on one side of the support sleeve (6), and the sliding groove (12) is slidably connected to the limiting rod (13). A limiting groove is provided on the other side of the support sleeve (6), and the limiting groove is inserted into the limiting rod (13).

3. The automotive oil cooler housing structure for preventing oil leakage according to claim 1, characterized in that: A spring (10) is fixedly connected to the bottom of the movable block (9), and the bottom end of the spring (10) is fixedly connected to the bottom of the inner cavity of the support sleeve (6). A limiting block (11) is fixedly connected to the side of the inner cavity of the support sleeve (6).

4. The automotive oil cooler housing structure for preventing oil leakage according to claim 1, characterized in that: The first fixing plate (8) is internally threaded with a fixing bolt (15), and a second fixing plate (16) is inserted into the outside of the fixing bolt (15). The first fixing plate (8) and the second fixing plate (16) are located outside the connecting pipe (5).

5. The automotive oil cooler housing structure for preventing oil leakage according to claim 1, characterized in that: A rubber pad (14) is fixedly connected to the bottom of the first fixing plate (8), and the first fixing plate (8) is located on the top of the threaded sleeve (4).