Oil cooler quick coupler with filtering function

Abstract

The utility model relates to the technical field of automobile parts, in particular to an oil cooler quick coupler with a filtering function. Most of existing oil cooler connectors do not have an integrated filtering function, impurities in cooling liquid cannot be effectively intercepted, and a cooler is blocked or damaged. The oil cooler quick coupler with the filtering function comprises a connecting pipe and a filtering cover, a circulation hole is formed in the filtering cover, a filtering net is arranged on the side, close to the connecting pipe, of the circulation hole, and the filtering net is pressed between the filtering cover and the connecting pipe in an abutting mode. The filter cover is detachably connected with the connecting pipe through the clamping foot and the annular clamping groove, and the other end of the connecting pipe is provided with an external thread and a locking sleeve which are used for fixing and sealing the cooling liquid pipe. The filter screen is arranged at the pipe opening of the connecting pipe, impurities can be effectively intercepted, the service life of the cooler is prolonged, meanwhile, the filter cover is designed to be detachable, cleaning and maintenance are convenient, and using cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a quick-connect fitting for an oil cooler with a filtration function. Background Technology

[0002] With the continuous improvement of the performance of modern automobiles, industrial equipment, and construction machinery, the requirements for lubrication systems are also increasing. Oil coolers, as a key component, are used to reduce the temperature of lubricating oil, thereby ensuring the normal operation of engines, transmissions, or other drive systems. Oil cooler connectors, as an important component connecting the cooler to the oil circuit, directly affect the efficiency and reliability of the entire cooling system. During the circulation process, coolant mixes with various impurities, such as metal shavings, dust, and colloids. If these impurities enter the coolant cooler, they can clog the cooler's heat dissipation channels, reduce cooling efficiency, and even damage internal components. However, most existing coolant cooler connectors lack integrated filtration functions, failing to effectively filter the coolant entering the cooler.

[0003] Therefore, it is necessary to improve upon the shortcomings of the existing technologies mentioned above. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an oil cooler quick-connect fitting with a filtering function to address the shortcomings of the prior art, thereby solving the problem that the coolant cooler fitting in the prior art cannot effectively filter the coolant entering the cooler.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect fitting for an oil cooler with a filtration function, comprising a connecting pipe, wherein a filter cover is detachably connected to the coolant pipe connection end of the connecting pipe, the filter cover is provided with a flow hole communicating with the pipe opening of the connecting pipe, a filter screen is provided on the side of the flow hole near the connecting pipe, and the filter screen is pressed between the filter cover and the connecting pipe.

[0006] With the above technical solution, when the coolant enters the connecting pipe through the flow hole of the filter cover, the filter screen can intercept metal debris, particulate matter and other impurities, preventing impurities from entering the coolant cooler. This effectively prevents blockage of the cooler's heat dissipation channels and damage to internal components, extending the cooler's service life. At the same time, the detachable connection between the filter cover and the connecting pipe makes it easy for users to clean and maintain the filter screen regularly, ensuring the filtration effect and reducing operating costs.

[0007] A further provision of the above technical solution is as follows: a plurality of locking feet are evenly distributed around the end of the filter cover near the connecting pipe, and an annular groove is provided on the outer circumferential surface of the connecting pipe near the end of the filter cover, which can engage with the locking feet. A quick-installation inclined surface is provided on the inner side of the end of the locking foot near the annular groove.

[0008] By adopting the above technical solution, the filter cover and the connecting pipe can be detachably connected by the snap-fit ​​of the clip and the annular groove; the quick-installation inclined surface makes the filter cover easier and faster to install, thus improving installation efficiency.

[0009] A further provision of the above technical solution is as follows: a hexagonal protrusion is provided on the outer periphery of the end of the connecting pipe away from the filter cover, and an external thread is provided on the side of the hexagonal protrusion near the filter cover. A locking sleeve is threadedly connected to the external thread, and an internal thread that mates with the external thread is provided inside the locking sleeve. The inner diameter of the locking sleeve at the end away from the internal thread gradually decreases from the outside to the inside. A transition surface with a gradually increasing outer diameter is provided between the end of the connecting pipe near the filter cover and the external thread.

[0010] By adopting the above technical solution, the rotating locking sleeve, due to the change in its inner diameter and the cooperation of the pipe transition surface, can make the joint and coolant pipe tightly connected, enhancing the stability and sealing of the connection, and effectively preventing coolant leakage.

[0011] A further provision of the above technical solution is that the connecting pipe is provided with an installation groove between the transition surface and the external thread, and a first sealing ring is installed in the installation groove.

[0012] By adopting the above technical solution, the first sealing ring can further enhance the sealing performance of the joint connection and effectively prevent coolant leakage.

[0013] A further provision of the above technical solution is as follows: a locking nut is fitted onto the end of the connecting pipe away from the filter cover; a first annular groove is provided on the outer circumferential surface of the end of the connecting pipe near the locking nut; a second annular groove is provided on the inner side of the locking nut, which is concentric with the first annular groove; the second annular groove is connected to an installation hole that extends outward from the locking nut; and a retaining strip is inserted into the installation hole, the first annular groove, and the second annular groove to fix the locking nut axially with the connecting pipe.

[0014] By adopting the above technical solution, after the locking strip is inserted into the mounting hole, the first annular groove and the second annular groove, the locking nut can be axially fixed with the connecting pipe, while ensuring that the locking nut can rotate relative to the connecting pipe, which facilitates the installation of the locking nut onto the corresponding external thread on the interface of the oil cooler, and realizes quick assembly and disassembly.

[0015] A further provision of the above technical solution is that a third annular groove is provided on the inner side of the end of the locking nut near the second annular groove, and a second sealing ring is installed in the third annular groove, the second sealing ring being able to abut against the end of the connecting pipe near the second annular groove.

[0016] By adopting the above technical solution, after the locking nut is fixedly connected to the interface of the oil cooler, the second sealing ring improves the sealing between the pipe and the interface of the oil cooler, ensuring that the coolant will not leak from this part.

[0017] The beneficial effects achieved by this utility model are: by setting a filter screen at the pipe inlet, impurities in the coolant are effectively intercepted, extending the service life of the oil cooler; the detachable connection between the filter cover and the pipe makes it convenient for users to clean and reduces the cost of use. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the pipe structure in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the filter cover in an embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the locking sleeve in an embodiment of this utility model.

[0024] The markings in the diagram are: 1. Connector; 11. Annular groove; 12. Hexagonal protrusion; 13. External thread; 14. Transition surface; 15. Mounting groove; 16. First annular groove; 2. Filter cover; 21. Flow hole; 22. Filter screen; 23. Clamping foot; 231. Quick-release bevel; 3. Locking sleeve; 31. Internal thread; 4. First sealing ring; 5. Locking nut; 51. Second annular groove; 52. Mounting hole; 53. Third annular groove; 6. Clamping strip; 7. Second sealing ring. Detailed Implementation

[0025] 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.

[0026] like Figure 1-6As shown, a quick-connect fitting for an oil cooler with a filtration function includes a connecting pipe 1, the coolant pipe connection end of which is detachably connected to a filter cover 2. The filter cover 2 has a flow hole 21 communicating with the inlet of the connecting pipe 1. A filter screen 22 is located near the connecting pipe 1 on the side of the flow hole 21, and the filter screen 22 is pressed between the filter cover 2 and the connecting pipe 1. Several locking feet 23 are evenly distributed circumferentially on the end of the filter cover 2 near the connecting pipe 1. An annular groove 11 is located on the outer circumferential surface of the end of the connecting pipe 1 near the filter cover 2, engaging with the locking feet 23. A quick-connect inclined surface 231 is located on the inner side of the end of the locking feet 23 near the annular groove 11. The outer periphery of the end of the connector 1 furthest from the filter cover 2 has a hexagonal protrusion 12. The side of the hexagonal protrusion 12 closest to the filter cover 2 has an external thread 13, which is threaded onto a locking sleeve 3. The locking sleeve 3 has an internal thread 31 that mates with the external thread 13. The inner diameter of the locking sleeve 3 furthest from the internal thread 31 gradually decreases from the outside in. Between the end of the connector 1 closest to the filter cover 2 and the external thread 13, there is a transition surface 14 with a gradually increasing outer diameter. A mounting groove 15 is located between the transition surface 14 and the external thread 13 on the connector 1, and a first sealing ring 4 is installed in the mounting groove 15. A locking nut 5 is fitted onto the end of the connector 1 furthest from the filter cover 2. A first annular groove 16 is located on the outer circumference of the end of the connector 1 closest to the locking nut 5. A second annular groove 51, concentric with the first annular groove 16, is located inside the locking nut 5. The second annular groove 51 connects to a mounting hole 52 extending outward from the locking nut 5. A retaining strip 6 is inserted into the mounting hole 52, the first annular groove 16, and the second annular groove 51 to axially fix the locking nut 5 to the connector 1. A third annular groove 53 is located on the inner side of the locking nut 5 closest to the second annular groove 51. A second sealing ring 7 is installed in the third annular groove 53, abutting against the end of the connector 1 closest to it. The filter screen 22 is preferably made of a highly permeable material (such as metal wire mesh or polymer material) to ensure filtration efficiency while reducing pressure drop.

[0027] In the above embodiment, the coolant enters through the flow hole 21 of the filter cover 2, passes through the filter screen 22 to filter impurities, and then enters the connecting pipe 1, which in turn delivers it to the oil cooler. The filter cover 2 is detachably connected to the connecting pipe 1 by engaging with the annular groove 11 via the locking foot 23, facilitating the cleaning of the filter screen 22. Rotating the locking sleeve 3, utilizing its engagement with the external thread 13 and the transition surface 14 of the connecting pipe 1, ensures a tight connection between the joint and other components, with the first sealing ring 4 enhancing the seal. The locking strip 6 axially fixes the locking nut 5 to the connecting pipe 1, and the second sealing ring 7 further improves the sealing performance of this connection. This invention effectively intercepts impurities in the coolant by installing a filter screen 22 at the pipe inlet, extending the service life of the oil cooler; the detachable connection between the filter cover 2 and the connecting pipe 1 facilitates cleaning for the user and reduces operating costs.

Claims

1. A quick-connect fitting for an oil cooler with a filtering function, comprising a connecting pipe (1), characterized in that: The coolant pipe connection end of the connector (1) is detachably connected to a filter cover (2). The filter cover (2) is provided with a flow hole (21) that communicates with the pipe opening of the connector (1). A filter screen (22) is provided on the side of the flow hole (21) near the connector (1). The filter screen (22) is pressed between the filter cover (2) and the connector (1).

2. The quick-connect coupling for an oil cooler with a filtering function according to claim 1, characterized in that: The filter cover (2) has a number of locking feet (23) evenly distributed around the end near the connector (1). The outer circumferential surface of the connector (1) near the filter cover (2) has an annular groove (11) that can engage with the locking feet (23). The inner side of the locking foot (23) near the annular groove (11) has a quick-installation inclined surface (231).

3. A quick-connect coupling for an oil cooler with a filtering function according to claim 2, characterized in that: The outer periphery of the end of the connector (1) away from the filter cover (2) is provided with a hexagonal protrusion (12). The side of the hexagonal protrusion (12) near the filter cover (2) is provided with an external thread (13). The external thread (13) is threadedly connected to a locking sleeve (3). The locking sleeve (3) is provided with an internal thread (31) that mates with the external thread (13). The inner diameter of the locking sleeve (3) at the end away from the internal thread (31) gradually decreases from the outside to the inside. The connector (1) is provided with a transition surface (14) with a gradually increasing outer diameter from the end near the filter cover (2) to the external thread (13).

4. A quick-connect coupling for an oil cooler with a filtering function according to claim 3, characterized in that: The connecting pipe (1) is provided with an installation groove (15) between the transition surface (14) and the external thread (13), and a first sealing ring (4) is installed in the installation groove (15).

5. A quick-connect coupling for an oil cooler with a filtering function according to any one of claims 1 to 4, characterized in that: A locking nut (5) is fitted onto the end of the connector (1) away from the filter cover (2). A first annular groove (16) is provided on the outer circumference of the end of the connector (1) near the locking nut (5). A second annular groove (51) is provided on the inner side of the locking nut (5) and is concentric with the first annular groove (16). The second annular groove (51) is connected to a mounting hole (52) that extends outward from the locking nut (5). A retaining strip (6) is inserted into the mounting hole (52), the first annular groove (16), and the second annular groove (51) to fix the locking nut (5) and the connector (1) axially.

6. A quick-connect coupling for an oil cooler with a filtering function according to claim 5, characterized in that: The locking nut (5) is provided with a third ring groove (53) on the inner side of the end near the second ring groove (51). A second sealing ring (7) is installed in the third ring groove (53). The second sealing ring (7) can abut against the end near the pipe (1).

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