Engine cooling water pipe fixing mechanism

By designing clamping rings and locking mechanisms that adapt to different pipe diameters, and combining them with heat-resistant stainless steel and elastic buffer bushings, the problem of existing water pipe fixing mechanisms being unable to accommodate multiple specifications has been solved, resulting in cost reduction and service life extension.

CN224478978UActive Publication Date: 2026-07-10ZHENZHEN AUTO PARTS (NINGBO) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENZHEN AUTO PARTS (NINGBO) CO LTD
Filing Date
2025-09-17
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing engine coolant hose fixing mechanisms are mostly designed for a single pipe diameter, which cannot be compatible with different specifications of water hoses, resulting in the need for individual customization, increasing production costs and inventory pressure.

Method used

A water pipe fixing mechanism including a fixed base, a retaining ring, and a locking mechanism was designed. The retaining ring can change the opening size through the locking mechanism to adapt to different pipe diameters. Combined with heat-resistant stainless steel material and elastic buffer bushing, it can achieve compatible fixing of water pipes of various specifications.

Benefits of technology

It achieves compatible fixing of water pipes of different diameters, reduces production costs, extends the service life of water pipes, and maintains stability in high-frequency vibration environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an engine cooling water pipe fixing mechanism and belongs to the field of engine parts. The fixing mechanism comprises a fixing base, a clamping ring connected with the fixing base and used for being sleeved outside a water pipe, and a locking mechanism arranged on the clamping ring. The clamping ring is in a C shape with an opening. The locking mechanism comprises a hinge seat fixedly connected to one side of an outer wall of the clamping ring, a screw rod fixedly connected with a hinge shaft of the hinge seat, a U-shaped clamping plate fixedly connected to the other side of the outer wall of the clamping ring and used for being matched with the screw rod, and a handle nut threadedly sleeved on the screw rod and used for driving the U-shaped clamping plate to move close to the hinge seat. An elastic buffer bushing used for abutting against the outside of the water pipe is fixedly arranged on the inner side of the clamping ring, and an anti-skid pattern is arranged on the inner wall of the buffer bushing. The opening size of the clamping ring is changed through the locking mechanism, the fixing mechanism is compatible with water pipes with different diameters in the engine cooling system, and the fixing mechanism does not need to be separately customized, so that the use cost is reduced.
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Description

Technical Field

[0001] This application relates to the field of engine component technology, specifically an engine cooling water pipe fixing mechanism. Background Technology

[0002] In the field of automotive engine technology, engines continuously generate a large amount of heat during operation. If this heat cannot be dissipated in time, it will directly affect the engine's efficiency and lifespan. Therefore, a cooling system is needed to achieve efficient heat dissipation. In existing engine cooling systems, coolant carries away heat through the circulation between the engine water passages and the radiator. The cooling water pipes (usually made of rubber or silicone hoses) connecting these core components serve as the key carrier for coolant delivery, and their stable operation is an important prerequisite for preventing coolant leakage and ensuring the normal operation of the cooling system.

[0003] Because of the continuous vibration generated during engine operation, coolant hoses are susceptible to displacement due to vibration and may rub against surrounding components, potentially causing damage to the hose walls. Therefore, a fixing mechanism is necessary to connect and secure the coolant hoses to the engine block or vehicle frame to constrain their position and reduce friction loss. However, most coolant hose fixing mechanisms currently widely used in the industry employ a single-diameter design, which can only accommodate coolant hoses of a specific size. In actual engine cooling systems, coolant hoses need to be configured in various sizes according to functional requirements, and the diameters of different sizes of hoses vary significantly. This means that a single-diameter fixing mechanism cannot be compatible with multiple sizes of coolant hoses, requiring custom-made fixing mechanisms for different diameters, increasing production costs and inventory pressure.

[0004] Therefore, this application provides an engine cooling water pipe fixing mechanism to solve the above problems. Utility Model Content

[0005] This application provides an engine cooling water pipe fixing mechanism, which aims to solve the problems mentioned in the background art. The existing engine cooling water pipe fixing mechanisms are mostly designed for a single pipe diameter, which cannot be compatible with water pipes of different specifications in the cooling system. Furthermore, the fixing mechanism needs to be customized for different pipe diameters, which increases production costs and inventory management pressure.

[0006] To achieve the above objectives, this application provides the following technical solution: an engine cooling water pipe fixing mechanism, comprising a fixed base, a retaining ring connected to the fixed base for sleeved on the outside of the water pipe, and a locking mechanism disposed on the retaining ring; wherein, the retaining ring is in the shape of a "C" with an opening; the locking mechanism includes a hinge seat fixedly connected to one side of the outer wall of the retaining ring, a screw fixedly connected to the hinge shaft of the hinge seat, a U-shaped retaining plate fixedly connected to the other side of the outer wall of the retaining ring for fitting with the screw, and a handle nut threadedly fitted on the screw for driving the U-shaped retaining plate to move closer to the hinge seat. Rotating the handle nut threadedly fitted on the screw can drive the U-shaped retaining plate to move closer to the hinge seat, thereby changing the opening size and clamping distance of the retaining ring to adapt to water pipes of different diameters.

[0007] Preferably, to maintain a certain distance between the water pipe and the engine or chassis, the mounting base is T-shaped and made of heat-resistant stainless steel. This ensures a certain distance between the water pipe and the engine or chassis, and the heat-resistant stainless steel material ensures stable use of the mounting base under the high-temperature operating environment of the engine, preventing damage.

[0008] Preferably, to facilitate the installation of the mounting base: each of the four corners of the mounting base has four oblong mounting holes for fixing the mechanism to the engine or vehicle frame with bolts. This allows for quick and stable installation of the mounting base onto the engine or vehicle frame, and the oblong design can accommodate minor deviations in the installation position, improving installation flexibility and efficiency.

[0009] Preferably, to reduce wear on the water pipe caused by the retaining ring: an elastic buffer bushing is fixedly provided on the inner side of the retaining ring for contact with the outside of the water pipe, and the inner wall of the buffer bushing is provided with anti-slip texture. The elastic buffer bushing can reduce wear on the water pipe caused by the retaining ring, absorb and isolate the high-frequency vibration transmitted by the engine to prevent the water pipe joint from loosening, extend the service life of the water pipe, and prevent the water pipe from moving around inside the retaining ring.

[0010] Preferably, the buffer bushing is made of rubber or silicone material, and its cross-section is C-shaped, wrapping around the inside of the retaining ring. This ensures that the buffer bushing has good elastic cushioning and high-temperature resistance, and the C-shaped cross-section can fully wrap around the inside of the retaining ring, improving the protection and compatibility with the water pipe.

[0011] Preferably, to facilitate the connection between the buffer bushing and the retaining ring: the outer wall of the buffer bushing is provided with a retaining groove that matches the retaining ring. This facilitates a quick and stable connection between the buffer bushing and the retaining ring, prevents the buffer bushing from shifting inside the retaining ring, and ensures stability during use.

[0012] Preferably, to facilitate the insertion of the water pipe, the inner side of the "C"-shaped opening of the buffer bushing is provided with a guide slope. This reduces the difficulty of inserting the water pipe into the buffer bushing, improves the efficiency of water pipe installation, and reduces damage to the water pipe during installation.

[0013] This application achieves compatible fixing of water pipes of different diameters in the engine cooling system by changing the opening size of the retaining ring through a locking mechanism, without the need for a separately customized fixing mechanism, thus reducing the cost of use.

[0014] This application utilizes an elastic buffer bushing to effectively absorb and isolate high-frequency vibrations transmitted from the engine, preventing water pipe joints from loosening due to vibration and significantly extending the service life of the water pipes. The buffer bushing completely isolates the water pipe from the retaining ring; its soft material and anti-slip design protect the surface of the water pipe while providing sufficient friction to prevent the water pipe from shifting within the retaining ring. Attached Figure Description

[0015] Figure 1 A schematic diagram of a mechanism for fixing engine cooling water pipes;

[0016] Figure 2 for Figure 1 The structural sectional view in the middle;

[0017] Figure 3 This is a schematic diagram of the structure of the buffer bushing.

[0018] In the picture:

[0019] 1. Fixed base; 11. Waist-shaped mounting hole; 2. Snap ring; 3. Locking mechanism; 31. Hinge seat; 32. Screw; 33. U-shaped clamping plate; 34. Handle nut; 4. Buffer bushing; 41. Slot; 42. Guide slope. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Example 1

[0022] This embodiment provides an engine cooling water pipe fixing mechanism, such as... Figure 1-3As shown, the fixing mechanism includes a fixed base 1, a retaining ring 2 connected to the fixed base 1 for fitting around the water pipe, and a locking mechanism 3 mounted on the retaining ring 2. The retaining ring 2 is C-shaped with an opening. The locking mechanism 3 includes a hinge seat 31 fixedly connected to one side of the outer wall of the retaining ring 2, a screw 32 fixedly connected to the hinge shaft of the hinge seat 31, a U-shaped clamping plate 33 fixedly connected to the other side of the outer wall of the retaining ring 2 for fitting with the screw 32, and a handle nut 34 threaded onto the screw 32 for driving the U-shaped clamping plate 33 to move closer to the hinge seat 31. By changing the opening size of the retaining ring 2 through the locking mechanism 3, compatible fixing of water pipes of different diameters in the engine cooling system can be achieved without the need for a separately customized fixing mechanism, reducing operating costs. Rotating the handle nut 34 threaded onto the screw 32 drives the U-shaped clamping plate 33 to move closer to the hinge seat 31, thereby changing the opening size and clamping distance of the retaining ring 2 to accommodate water pipes of different diameters.

[0023] To maintain a certain distance between the water hose and the engine or chassis, the mounting base 1 is T-shaped and made of heat-resistant stainless steel. This ensures a proper distance between the water hose and the engine or chassis, and the heat-resistant stainless steel material guarantees stable operation of the mounting base 1 under the high-temperature operating environment of the engine, preventing damage. The T-shaped design of the mounting base 1, after connection to the engine or chassis, allows it to create a gap between the connected retaining ring 2 and the water hose; simultaneously, the heat-resistant stainless steel material possesses high-temperature resistance properties, able to withstand the high temperatures generated during engine operation, maintaining the structural strength and operational stability of the mounting base 1.

[0024] To facilitate the installation of the mounting base 1, four oblong mounting holes 11 are provided at each of the four corners of the mounting base 1 for securing the mechanism to the engine or frame with bolts. This allows for quick and stable installation of the mounting base 1 onto the engine or frame, and the oblong design can accommodate minor deviations in the installation position, improving installation flexibility and efficiency. The four oblong mounting holes 11 at the four corners of the mounting base 1 allow bolts to pass through, securing the mounting base 1 to the engine or frame. The oblong hole structure allows for fine-tuning of the position of the mounting base 1 during installation, facilitating alignment with the mounting point and reducing installation difficulty.

[0025] Example 2

[0026] Unlike Embodiment 1, to reduce wear on the water pipe caused by the retaining ring 2, an elastic buffer bushing 4 is fixedly installed on the inner side of the retaining ring 2 for contact with the outside of the water pipe. The inner wall of the buffer bushing 4 is provided with anti-slip texture. The elastic buffer bushing 4 can reduce wear on the water pipe caused by the retaining ring 2, absorb and isolate the high-frequency vibration transmitted by the engine to prevent the water pipe joint from loosening, extend the service life of the water pipe, and prevent the water pipe from moving around inside the retaining ring 2. The elastic buffer bushing 4 on the inner side of the retaining ring 2 abuts against the outside of the water pipe. Its soft material can isolate the retaining ring 2 and the water pipe, avoiding direct friction between the two and causing wear on the water pipe. The elastic properties can absorb the high-frequency vibration transmitted by the engine, reducing the impact of vibration on the water pipe joint. The anti-slip texture on the inner wall can increase the friction between the buffer bushing 4 and the water pipe, thereby preventing the water pipe from moving around inside the retaining ring 2.

[0027] The buffer bushing 4 is made of rubber or silicone material, with a "C"-shaped cross-section, and wraps around the inside of the retaining ring 2. This ensures the buffer bushing 4 has good elastic cushioning and high-temperature resistance. The "C"-shaped cross-section allows for complete wrapping of the inside of the retaining ring 2, improving the protection and fit of the water pipe. The buffer bushing 4 uses rubber or silicone material, utilizing the elasticity of these materials to achieve a cushioning effect, while its high-temperature resistance adapts to the engine operating environment. The "C"-shaped cross-section matches the shape of the inside of the retaining ring 2, completely wrapping the inside of the retaining ring 2, ensuring a close fit when in contact with the water pipe, and enhancing protection and fixation.

[0028] To facilitate the connection between the buffer bushing 4 and the retaining ring 2, the outer wall of the buffer bushing 4 is provided with a groove 41 that matches the retaining ring 2. This allows for a quick and stable connection between the buffer bushing 4 and the retaining ring 2, preventing the buffer bushing 4 from shifting inside the retaining ring 2 and ensuring stability during use. The groove 41 on the outer wall of the buffer bushing 4 matches the structure of the retaining ring 2. During installation, the groove 41 is engaged with the retaining ring 2 to fix the buffer bushing 4 inside the retaining ring 2, preventing displacement of the buffer bushing 4 during use.

[0029] To facilitate the insertion of water pipes, a guide slope 42 is provided on the inner side of the "C"-shaped opening of the buffer bushing 4. This reduces the difficulty of inserting the water pipe into the buffer bushing 4, improves the efficiency of water pipe installation, and reduces damage to the water pipe during installation. The guide slope 42 on the inner side of the "C"-shaped opening of the buffer bushing 4 forms an inclined guiding structure. When inserting the water pipe, the guide slope 42 guides the water pipe, allowing it to slide more smoothly into the buffer bushing 4 and reducing resistance during insertion.

[0030] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A mechanism for fixing an engine cooling water pipe, characterized in that: It includes a fixed base (1), a retaining ring (2) connected to the fixed base (1) for sleeved on the outside of the water pipe, and a locking mechanism (3) provided on the retaining ring (2); The retaining ring (2) is in the shape of a "C" with an opening; The locking mechanism (3) includes a hinge seat (31) fixedly connected to one side of the outer wall of the snap ring (2), a screw (32) fixedly connected to the hinge shaft of the hinge seat (31), a U-shaped clamping plate (33) fixedly connected to the other side of the outer wall of the snap ring (2) for fitting with the screw (32), and a handle nut (34) threaded on the screw (32) for driving the U-shaped clamping plate (33) to move closer to the hinge seat (31).

2. The engine cooling water pipe fixing mechanism according to claim 1, characterized in that: The fixed base (1) is in the shape of a "T" and is made of heat-resistant stainless steel.

3. The engine cooling water pipe fixing mechanism according to claim 1, characterized in that: The fixed base (1) has four waist-shaped mounting holes (11) at each of its four corners for fixing the mechanism to the engine or frame with bolts.

4. The engine cooling water pipe fixing mechanism according to any one of claims 1-3, characterized in that: The inner side of the retaining ring (2) is fixedly provided with an elastic buffer bushing (4) for contacting the outside of the water pipe, and the inner wall of the buffer bushing (4) is provided with anti-slip texture.

5. The engine cooling water pipe fixing mechanism according to claim 4, characterized in that: The buffer bushing (4) is made of rubber or silicone material and has a "C" shaped cross-section, which wraps around the inside of the retaining ring (2).

6. The engine cooling water pipe fixing mechanism according to claim 5, characterized in that: The outer wall of the buffer bushing (4) is provided with a groove (41) that matches the retaining ring (2).

7. The engine cooling water pipe fixing mechanism according to claim 5, characterized in that: The buffer bushing (4) has a guide slope (42) on the inside of the "C"-shaped opening.