Engine water outlet pipe connecting pipe for automobile

By designing the connection pipe of the engine outlet pipe for automobiles and adopting a sliding structure with tight fitting seal gasket and limit ring, the problems of loose gasket and installation restrictions are solved, stable connection, reduced leakage risks and installation flexibility are achieved, and the operation stability and maintenance convenience of the engine cooling system are improved.

CN223282137UActive Publication Date: 2025-08-29HUBEI QINGONG MASCH MFG CO LTD
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Patent Information

Application Number
CN202422488157.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-08-29
Estimated Expiration
2034-10-14

AI Technical Summary

Technical Problem

When used in use, the sealing gasket is easily loosened due to vibration or high pressure, which increases the risk of coolant leakage, and the installation does not adapt to different space layouts and locations, which increases installation restrictions.

Method used

A connection pipe connecting pipe for automobile engines is designed, including the main body of the connecting pipe, annular baffle, inner and outer pipes, threaded pipes, fixing plates, clamps, limit rings and universal balls. By closely fitting the sealing gasket and limit rings, the stability and sealing of the connection are ensured.

Benefits of technology

Effectively prevent coolant leakage, reduce the risk of loosening caused by vibration or impact, improve sealing effect, adapt to different space layouts and installation locations, simplify the maintenance process, and extend service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile engine water outlet pipe connecting pipe which comprises a connecting pipe body, two annular baffles are arranged in the connecting pipe body, inner pipes are fixedly installed on one sides of the two annular baffles, and the two ends of the connecting pipe body are in threaded connection with threaded pipes. One ends of the two water outlet pipes sequentially penetrate through the outer pipe, the connecting plate and the threaded pipe, the inner pipe is inserted into the water outlet pipes, it is ensured that the contact faces of the sealing washers and the water outlet pipes are tightly attached, the risk of loosening caused by vibration or high pressure is avoided, the risk of leakage is reduced, meanwhile, the contact area of the sealing faces can be increased, and the sealing effect is improved. The sealing effect is further improved, leakage of cooling liquid is prevented, normal operation of an engine cooling system is guaranteed, then the two ends of the clamp are close to each other by rotating the nut, tight compression of the water outlet pipe and the connecting pipe body can be achieved, gaps at the connector are effectively reduced, and therefore the sealing performance is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of engine components, and in particular to an engine water outlet pipe connecting pipe for an automobile. Background Art

[0002] Modern automobile engines are mostly water-cooled due to water's high specific heat and excellent heat transfer between components and the cooling medium. Engines that use water as a cooling medium are called water-cooled engines. The coolant, or water, is pumped by a water pump through the engine and radiator. While the car is in motion, the water flowing through the radiator is cooled by windward airflow or by a fan. The engine water outlet pipe is a crucial component of the engine cooling system, primarily connecting the engine water pump and heat exchanger to deliver coolant. Connecting pipes are required to connect two adjacent water outlet pipes.

[0003] Existing automotive engine water outlet pipe connectors require a gasket at the interface between the connector and the outlet pipe to prevent coolant leakage. However, this gasket can easily loosen due to vibration or high pressure, increasing the risk of coolant leakage. Furthermore, the gasket cannot adapt to different spatial layouts and installation locations during installation, increasing installation restrictions. Therefore, a new automotive engine water outlet pipe connector is proposed to address these issues. Summary of the Invention

[0004] In this embodiment, a connecting pipe for an automobile engine water outlet pipe is provided to solve the problem that a sealing gasket is provided at the interface between the connecting pipe and the water outlet pipe to prevent coolant leakage during use. However, the sealing gasket is easily loosened due to vibration or high pressure, increasing the risk of coolant leakage. Moreover, during installation, it cannot adapt to different spatial layouts and installation positions, which increases the installation restrictions.

[0005] According to one aspect of the present application, a connecting pipe for an engine water outlet pipe of an automobile is provided, comprising a connecting pipe body, two annular baffles are provided inside the connecting pipe body, an inner pipe is fixedly installed on one side of the two annular baffles, threaded pipes are threadedly connected to both ends of the connecting pipe body, a fixing plate is fixedly installed on one side of the two threaded pipes, and an outer pipe is fixedly installed on one side of the two fixing plates.

[0006] Furthermore, two water outlet pipes are provided inside the connecting pipe body, and the two water outlet pipes pass through the outer pipe, the fixing plate and the threaded pipe in sequence, and the two inner pipes are both located inside the two water outlet pipes.

[0007] Furthermore, a clamp is sleeved on each of the two outer tubes, a connecting plate is fixedly installed on one side of each of the two clamps, and a fixing hole is opened on the connecting plate.

[0008] Furthermore, bolts are provided on the two connecting plates, and both of the bolts pass through the two fixing holes and are threadedly connected with nuts.

[0009] Furthermore, two limiting rings are sleeved on the connecting pipe body, and both limiting rings are slidably connected to the outer surface of the connecting pipe body. Both limiting rings are fixedly installed with connecting seats, and both connecting seats are rotatably connected to the inside with universal balls.

[0010] Furthermore, a fixing cylinder is fixedly installed on one side of the two universal balls, the interiors of the two fixing cylinders are threadedly connected with screw rods, and a mounting plate is installed on the two screw rods.

[0011] Furthermore, a water flow channel layer is provided inside the connecting pipe body.

[0012] Furthermore, two limiting plates are provided at both ends of the connecting pipe body.

[0013] Furthermore, buffer pads are provided inside the two limiting rings.

[0014] Furthermore, a plurality of mounting holes distributed at equal distances are provided on both mounting plates.

[0015] In the above embodiment of the present application, one end of each of the two water outlet pipes is sequentially passed through the outer pipe, the connecting plate, and the threaded pipe, and the inner pipe is inserted into the interior of the water outlet pipe, thereby ensuring that the contact surface of the sealing gasket and the water outlet pipe fits tightly. This avoids the risk of loosening due to vibration or high pressure, reduces the risk of leakage, and simultaneously increases the contact area of ​​the sealing surface, further improving the sealing effect, preventing coolant leakage, and ensuring the normal operation of the engine cooling system. Then, by turning the nut to bring the two ends of the clamp closer to each other, the water outlet pipe and the connecting pipe body can be tightly compressed, effectively reducing the gap at the interface, thereby improving the sealing performance.

[0016] By setting a limit ring, the limit ring can slide or rotate along the outer surface of the connecting pipe body, so that the connecting pipe body can more flexibly adapt to different spatial layouts and installation positions during installation, reducing installation restrictions, and rotating the mounting plate to allow the installation height to be adjusted according to actual needs, thereby ensuring that the connection between the connecting pipe body and the water outlet pipe is more precise and stable, and can ensure that the connection point between the connecting pipe body and the water outlet pipe is in the best state, reducing the risk of loosening or leakage due to vibration or impact, and at the same time can disperse the stress concentration at the connection point between the water outlet pipe and the connecting pipe body, reducing fatigue damage and cracks caused by long-term vibration or impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the overall internal structure of an embodiment of the present application;

[0020] Figure 3 This is a schematic side view of the structure of an embodiment of the present application.

[0021] In the figure: 1. Water outlet pipe; 2. Clamp; 3. Fixing plate; 4. Threaded pipe; 5. Universal ball; 6. Fixing cylinder; 7. Mounting hole; 8. Buffer pad; 9. Sealing washer; 10. Inner pipe; 11. Outer pipe; 12. Connecting plate; 13. Mounting plate; 14. Screw; 15. Connecting seat; 16. Water flow channel layer; 17. Limiting ring; 18. Connecting pipe body; 19. Limiting plate; 20. Fixing hole; 21. Nut; 22. Bolt. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0025] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0026] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0027] See also Figure 1-3 As shown, a connecting pipe for an engine water outlet pipe of an automobile includes a connecting pipe body 18, two annular baffles 23 are provided inside the connecting pipe body 18, one side of the two annular baffles 23 is fixedly installed with an inner pipe 10, both ends of the connecting pipe body 18 are threadedly connected with a threaded pipe 4, one side of the two threaded pipes 4 is fixedly installed with a fixing plate 3, and one side of the two fixing plates 3 is fixedly installed with an outer pipe 11, ensuring that the contact surface of the sealing gasket 9 and the water outlet pipe 1 is tightly fitted, thereby avoiding the risk of loosening due to vibration or high pressure, reducing the risk of leakage, and at the same time increasing the contact area of ​​the sealing surface, further improving the sealing effect, preventing coolant leakage, and ensuring the normal operation of the engine cooling system.

[0028] Two water outlet pipes 1 are provided inside the connecting pipe body 18 . The two water outlet pipes 1 pass through the outer pipe 11 , the fixing plate 3 and the threaded pipe 4 in sequence. The two inner pipes 10 are both located inside the two water outlet pipes 1 .

[0029] A clamp 2 is sleeved on each of the two outer tubes 11 , and a connecting plate 12 is fixedly installed on one side of each of the two clamps 2 . A fixing hole 20 is formed on each of the connecting plates 12 .

[0030] Bolts 22 are provided on the two connecting plates 12. Both of the bolts 22 pass through the two fixing holes 20 and are threadedly connected with nuts 21, which can achieve tight compression of the water outlet pipe and the connecting pipe body, effectively reduce the gap at the interface, thereby improving the sealing performance, and can effectively prevent the coolant from leaking at the interface, ensuring the stable operation of the engine cooling system. At the same time, it can be suitable for water outlet pipes and connecting pipes of different diameters. By adjusting the size and tightness of the clamp, it can adapt to the connection requirements of pipes of different sizes. When maintenance or replacement is required, only the nut 21 needs to be loosened to easily disassemble the connecting pipe, which simplifies the maintenance process.

[0031] Two limiting rings 17 are sleeved on the connecting pipe body 18, and the two limiting rings 17 are both slidably connected to the outer surface of the connecting pipe body 18. A connecting seat 15 is fixedly installed on the two limiting rings 17, and a universal ball 5 is rotatably connected inside the two connecting seats 15.

[0032] A fixing cylinder 6 is fixedly installed on one side of the two universal balls 5, and a screw 14 is threadedly connected to the interior of the two fixing cylinders 6. A mounting plate 13 is installed on the two screws 14. By rotating the mounting plate, the mounting plate drives the screw to rotate and move at the same time, allowing the installation height to be adjusted according to actual needs, thereby ensuring that the connection between the connecting pipe and the water outlet pipe is more precise and stable, and ensuring that the connection point between the connecting pipe and the water outlet pipe is in the best condition, reducing the risk of loosening or leakage due to vibration or impact.

[0033] A water flow channel layer 16 is provided inside the connecting pipe body 18. The water flow channel layer 16 is responsible for the circulation of cooling water, ensuring smooth water flow with low resistance and evenly distributing the cooling water to improve cooling efficiency.

[0034] Two limiting plates 19 are provided at both ends of the connecting pipe body 18 .

[0035] The two limiting rings 17 are both provided with buffer pads 8. The buffer pads between the limiting rings and the connecting pipe body can absorb part of the vibration and impact, reduce the mechanical stress on the connecting pipe body 1 and its interface, thereby further improving the stability and safety of the connection. The presence of the buffer pads 8 reduces the direct contact and friction between the limiting rings 17 and the connecting pipe body 1, reduces the wear caused by long-term vibration, and helps to extend the service life of the connecting pipe body 1 and the limiting rings 17.

[0036] The two mounting plates 13 are each provided with a plurality of mounting holes 7 distributed at equal distances.

[0037] When the present application is in use, one end of the two water outlet pipes 1 is passed through the outer tube 11, the fixing plate 3 and the threaded tube 4 in sequence, and the inner tube 10 is inserted into the water outlet pipe 1 to ensure that the contact surface of the sealing gasket 9 and the water outlet pipe 1 are tightly fitted, thereby avoiding the risk of loosening due to vibration or high pressure and reducing the risk of leakage. At the same time, the contact area of ​​the sealing surface can be increased, further improving the sealing effect, preventing the coolant from leaking out, and ensuring the normal operation of the engine cooling system. Then, by rotating the nut 21, the two ends of the clamp 2 are brought close to each other, which can achieve tight compression of the water outlet pipe 1 and the connecting pipe body 18, effectively reducing the gap at the interface, thereby improving the sealing, effectively preventing the coolant from leaking at the interface, and ensuring the stable operation of the engine cooling system. At the same time, it can be suitable for water outlet pipes 1 and connecting pipes of different diameters. By adjusting the size and tightness of the clamp 2, it can adapt to the connection requirements of pipes of different sizes. When maintenance or replacement is required, only the nut 21 needs to be loosened to easily disassemble the connecting pipe, simplifying the maintenance process;

[0038] The limiting ring 17 can slide or rotate along the outer surface of the connecting pipe body 18, so that the connecting pipe body 18 can adapt to different spatial layouts and installation positions more flexibly during installation, reducing installation restrictions, and rotating the mounting plate 13. The mounting plate 13 drives the screw 14 to rotate and move at the same time, allowing the installation height to be adjusted according to actual needs, thereby ensuring that the connection between the connecting pipe body 18 and the water outlet pipe 1 is more precise and stable, and can ensure that the connection point between the connecting pipe body 18 and the water outlet pipe 1 is in the best state, reducing the risk of loosening or leakage due to vibration or impact, and at the same time can disperse the stress concentration at the connection point between the water outlet pipe 1 and the connecting pipe body 18, reducing fatigue damage and cracks caused by long-term vibration or impact.

[0039] The benefits of this application are:

[0040] 1. By sequentially passing one end of the two water outlet pipes 1 through the outer tube 11, the fixing plate 3, and the threaded tube 4, and inserting the inner tube 10 into the water outlet pipe 1, ensuring that the contact surface of the sealing gasket 9 and the water outlet pipe 1 is tightly fitted, this avoids the risk of loosening due to vibration or high pressure, reduces the risk of leakage, and at the same time increases the contact area of ​​the sealing surface, further improving the sealing effect, preventing coolant leakage, and ensuring the normal operation of the engine cooling system. Then, by turning the nut 21 to bring the two ends of the clamp 2 closer to each other, the water outlet pipe 1 and the connecting pipe body 18 can be tightly compressed, effectively reducing the gap at the interface, thereby improving the sealing performance;

[0041] 2. By setting a limit ring 17, the limit ring 17 can slide or rotate along the outer surface of the connecting pipe body 18, so that the connecting pipe body 18 can adapt to different spatial layouts and installation positions more flexibly during installation, reducing installation restrictions, and rotating the mounting plate 13 to allow the installation height to be adjusted according to actual needs, thereby ensuring that the connection between the connecting pipe body 18 and the water outlet pipe 1 is more precise and stable, and can ensure that the connection point between the connecting pipe body 18 and the water outlet pipe 1 is in the best state, reducing the risk of loosening or leakage due to vibration or impact, and at the same time can disperse the stress concentration at the connection point between the water outlet pipe 1 and the connecting pipe body 18, reducing fatigue damage and cracks caused by long-term vibration or impact.

[0042] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A connecting pipe for an engine water outlet pipe of an automobile, comprising a connecting pipe body (18), characterized in that: Two annular baffles (23) are provided inside the connecting pipe body (18), and an inner pipe (10) is fixedly installed on one side of the two annular baffles (23). Both ends of the connecting pipe body (18) are threadedly connected to threaded pipes (4), and a fixing plate (3) is fixedly installed on one side of the two threaded pipes (4), and an outer pipe (11) is fixedly installed on one side of the two fixing plates (3).

2. The automobile engine water outlet pipe connecting pipe according to claim 1, characterized in that: Two water outlet pipes (1) are provided inside the connecting pipe body (18), and the two water outlet pipes (1) pass through the outer pipe (11), the fixing plate (3) and the threaded pipe (4) in sequence, and the two inner pipes (10) are both located inside the two water outlet pipes (1).

3. The automobile engine water outlet pipe connecting pipe according to claim 1, characterized in that: A clamp (2) is sleeved on each of the two outer tubes (11), a connecting plate (12) is fixedly mounted on one side of each of the two clamps (2), and a fixing hole (20) is provided on each of the connecting plates (12).

4. The automobile engine water outlet pipe connecting pipe according to claim 3, characterized in that: Bolts (22) are provided on the two connecting plates (12), and the two bolts (22) pass through the two fixing holes (20) and are threadedly connected with nuts (21).

5. The automobile engine water outlet pipe connecting pipe according to claim 1, characterized in that: Two limiting rings (17) are sleeved on the connecting pipe body (18), and the two limiting rings (17) are both slidably connected to the outer surface of the connecting pipe body (18). A connecting seat (15) is fixedly installed on the two limiting rings (17), and a universal ball (5) is rotatably connected inside the two connecting seats (15).

6. The automobile engine water outlet pipe connecting pipe according to claim 5, characterized in that: A fixing cylinder (6) is fixedly mounted on one side of the two universal balls (5), a screw rod (14) is threadedly connected to the interior of the two fixing cylinders (6), and a mounting plate (13) is mounted on the two screw rods (14).

7. The automobile engine water outlet pipe connecting pipe according to claim 1, characterized in that: A water flow channel layer (16) is provided inside the connecting pipe body (18).

8. The automobile engine water outlet pipe connecting pipe according to claim 1, characterized in that: Two limiting plates (19) are provided at both ends of the connecting pipe body (18).

9. The automobile engine water outlet pipe connecting pipe according to claim 5, characterized in that: Buffer pads (8) are provided inside the two limiting rings (17).

10. The automobile engine water outlet pipe connecting pipe according to claim 6, characterized in that: Both mounting plates (13) are provided with a plurality of mounting holes (7) distributed at equal distances.