A cylinder head with a cooling mechanism

By installing a connecting assembly consisting of a fixing block, rubber gasket, limit plate, and knob screw sleeve on the cylinder head, the problem of easy loosening of the coolant delivery pipe is solved, a stable connection between the coolant delivery pipe and the cooling interface pipe is achieved, coolant leakage is avoided, and effective heat dissipation of the cylinder head is ensured.

CN224479119UActive Publication Date: 2026-07-10JIANHU FENGYUAN MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHU FENGYUAN MASCH MFG CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The existing cylinder head coolant delivery pipe and cooling interface pipe connection is prone to loosening, leading to coolant leakage and affecting heat dissipation.

Method used

The connection assembly, consisting of a fixing block, rubber gasket, limit plate, and knob screw sleeve, ensures a stable connection between the coolant delivery pipe and the cooling interface pipe through the interlocking of the pressure plate and rubber gasket, combined with the threaded connection of the limit plate and knob screw sleeve.

Benefits of technology

The connection stability between the coolant delivery pipe and the cooling interface pipe has been improved, preventing coolant leakage and ensuring effective heat dissipation of the cylinder head.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224479119U_ABST
    Figure CN224479119U_ABST
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Abstract

This utility model relates to the field of cylinder head technology, specifically a cylinder head with a cooling mechanism, comprising: a cylinder head body and a coolant delivery pipe. The cylinder head body is provided with two cooling interface pipes connecting to the internal cooling chamber. The coolant delivery pipe is connected to the cooling interface pipes through a connecting assembly. The coolant is embedded in a circular groove by a pressure plate and a rubber gasket. After the cooling interface pipe is inserted into the coolant delivery pipe, the limiting plate moves towards the coolant delivery pipe until the inner wall of the semi-threaded pipe engages with the coolant delivery pipe, and the limiting plate engages with the limiting pressure plate. This causes the knob sleeve to be threadedly connected to the semi-threaded pipe on both sides of the limiting plate, fixing the positions of the two limiting plates. At the same time, the Z-shaped plate engages with the end wall of the knob sleeve to limit and prevent the knob sleeve from loosening, further improving the connection stability between the cooling interface pipe and the coolant delivery pipe, thereby preventing coolant leakage.
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Description

Technical Field

[0001] This utility model relates to the field of cylinder head technology, specifically to a cylinder head with a cooling mechanism. Background Technology

[0002] Chinese patent document CN218093718U discloses a cylinder head, relating to the field of cylinder technology, which includes a cover body, a liquid-blocking assembly, and at least three one-way valves. The cylinder head provided by this invention, by incorporating the cover body, liquid-blocking assembly, and at least three one-way valves, allows coolant to circulate inside the cover body through the inlet and outlet. During its flow, the coolant carries away heat from the cylinder head. Furthermore, the liquid-blocking assembly and the at least three one-way valves increase the time the coolant remains inside the cover body, thus extending the heat exchange time between the coolant and the cylinder head. Therefore, the cylinder head of this invention facilitates heat dissipation and is beneficial for the actual heat dissipation of the cylinder.

[0003] However, in the above-mentioned solutions and existing technologies, the cooling effect is achieved by circulating coolant into the cooling chamber of the cylinder head. The coolant circulation equipment usually connects the delivery pipe to the cylinder head cooling interface pipe by directly tightening the threaded sleeve. If the threaded sleeve is not tightened or is easily loosened during use, it will cause coolant leakage, affecting the use of the device. Improvement and optimization are needed. Utility Model Content

[0004] The purpose of this invention is to provide a cylinder head with a cooling mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cylinder head with a cooling mechanism, comprising: a cylinder head body and a coolant delivery pipe, wherein the cylinder head body is provided with two cooling interface pipes connecting to the internal cooling chamber, and a pressure plate is fixedly sleeved at the end of the coolant delivery pipe; the coolant delivery pipe is connected to the cooling interface pipe through a connecting assembly, the connecting assembly including a fixing block, a rubber gasket, a limiting plate, and a knob screw sleeve.

[0006] Preferably, the fixing blocks are symmetrically connected and disposed on the side wall of the cylinder head body, the side wall of the fixing blocks is provided with a sliding groove, the bottom wall of the sliding groove is provided with a circular groove, the cooling interface pipe is located at the center of the circular groove, and guide grooves are symmetrically provided on the two side walls of the sliding groove.

[0007] Preferably, the cooling interface pipe is inserted into the coolant delivery pipe, a rubber gasket is snapped onto the side end of the pressure plate, and barbs are equidistantly connected to the bottom end of the pressure plate. Barb grooves are equidistantly opened on the side wall of the rubber gasket, and the barbs are snapped onto the barb grooves.

[0008] Preferably, the pressure plate and rubber gasket are embedded in the circular groove, the rubber gasket is sleeved with the cooling interface pipe, and two limiting plates are symmetrically and movablely engaged in the sliding groove. The limiting plates are engaged with the pressure plate, and one side of the limiting plate is provided with an inclined surface and an arc groove adapted to engage with the coolant delivery pipe is opened at the inclined surface.

[0009] Preferably, guide blocks are symmetrically connected to the two side walls of the limiting plate, the guide blocks are movably engaged in the guide groove, the ends of the two limiting plates are engaged, and semi-threaded tubes are connected to the side walls of the limiting plate. The semi-threaded tubes on the two limiting plates are compatible with each other, and the inner wall of the semi-threaded tubes is engaged with the coolant delivery pipe.

[0010] Preferably, a knob sleeve is movably sleeved on the coolant delivery pipe, the knob sleeve is connected to the semi-threaded pipe thread on the limit plates on both sides, a magnetic ring is fixedly embedded on the end wall of the knob sleeve, a Z-shaped plate is symmetrically rotated on the side wall of the fixed block, the Z-shaped plate is engaged with the end wall of the knob sleeve, and a magnetic block is fixedly embedded on the side wall of the Z-shaped plate, the magnetic block and the magnetic ring attract each other.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The pressure plate and rubber gasket are embedded in the circular groove. After the cooling interface pipe is inserted into the coolant delivery pipe, the limiting plate moves towards the coolant delivery pipe until the inner wall of the semi-threaded pipe is engaged with the coolant delivery pipe and the limiting plate engages with the limiting pressure plate. This causes the knob sleeve to be threadedly connected to the semi-threaded pipe on both sides of the limiting plate, fixing the positions of the two limiting plates. At the same time, the Z-shaped plate engages with the end wall of the knob sleeve to limit and prevent the knob sleeve from loosening, further improving the connection stability between the cooling interface pipe and the coolant delivery pipe and thus preventing coolant leakage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main structure connection of the cylinder head of this utility model;

[0015] Figure 3 This utility model Figure 2 A magnified view of a portion of the image;

[0016] Figure 4 This is a schematic diagram of the connection of the limiting plate structure of this utility model;

[0017] Figure 5 Here is a schematic diagram of the Z-shaped card plate structure of this utility model:

[0018] Figure 6 This is an exploded view of the coolant delivery pipe structure of this utility model.

[0019] Figure 7 This is a schematic diagram of the connection of the rubber gasket structure of this utility model.

[0020] In the diagram: 1. Cylinder head body; 2. Cooling interface pipe; 3. Coolant delivery pipe; 4. Pressure plate; 5. Fixing block; 6. Sliding groove; 7. Circular groove; 8. Guide groove; 9. Barb; 10. Rubber gasket; 11. Barb groove; 12. Limiting plate; 13. Guide block; 14. Semi-threaded pipe; 15. Knob screw sleeve; 16. Magnetic ring; 17. Z-shaped clamping plate; 18. Magnetic block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-7 This utility model provides a technical solution: a cylinder head with a cooling mechanism, comprising: a cylinder head body 1 and a coolant delivery pipe 3. The cylinder head body 1 is provided with two cooling interface pipes 2 that connect to the internal cooling chamber. A pressure plate 4 is fixedly sleeved at the end of the coolant delivery pipe 3. The coolant delivery pipe 3 is connected to the cooling interface pipes 2 through a connecting assembly.

[0023] Two cooling interface pipes 2 are used to circulate and deliver coolant into the cooling chamber inside the cylinder head body 1. One side is used for coolant inlet and the other side is used for coolant outlet. One end of the coolant delivery pipe 3 is connected to the coolant cooling circulation equipment and the other end is connected to the cooling interface pipe 2.

[0024] The fixing block 5 in the connecting assembly is symmetrically connected to the side wall of the cylinder head body 1. The side wall of the fixing block 5 is provided with a sliding groove 6, the bottom wall of the sliding groove 6 is provided with a circular groove 7, the cooling interface pipe 2 is located in the center of the circular groove 7, and the two side walls of the sliding groove 6 are symmetrically provided with guide grooves 8.

[0025] The cooling interface pipe 2 is located in the circular groove 7 on the fixing block 5 for positioning and installation of the coolant delivery pipe 3.

[0026] The cooling interface pipe 2 is inserted into the coolant delivery pipe 3. A rubber gasket 10 is snapped onto the side end of the pressure plate 4. A barb 9 is equidistantly connected to the bottom end of the pressure plate 4. A barb groove 11 is equidistantly opened on the side wall of the rubber gasket 10. The barb 9 is snapped onto the barb groove 11.

[0027] The barb 9 at the bottom of the pressure plate 4 engages with the barb groove 11 on the side wall of the rubber washer 10, and the rubber washer 10 is fitted onto the pressure plate 4 for easy installation.

[0028] The pressure plate 4 and the rubber gasket 10 are embedded in the circular groove 7. The rubber gasket 10 is sleeved with the cooling interface pipe 2. Two limiting plates 12 are symmetrically and movablely engaged in the sliding groove 6. The limiting plates 12 are engaged with the pressure plate 4. One side of the limiting plate 12 is provided with an inclined surface and an arc groove adapted to engage with the coolant delivery pipe 3 is opened at the inclined surface.

[0029] The pressure plate 4 and the rubber gasket 10 are embedded in the circular groove 7. The limiting plate 12 is engaged with the pressure plate 4 to limit the position, so that the pressure plate 4 presses the rubber gasket 10 to ensure the sealing of the connection between the cooling interface pipe 2 and the coolant delivery pipe 3.

[0030] Guide blocks 13 are symmetrically connected to the two side walls of the limiting plate 12. The guide blocks 13 are movably engaged in the guide groove 8 and engaged at the ends of the two limiting plates 12. Semi-threaded pipes 14 are connected to the side walls of the limiting plate 12. The semi-threaded pipes 14 on the two limiting plates 12 are compatible with each other, and the inner wall of the semi-threaded pipes 14 is engaged with the coolant delivery pipe 3.

[0031] The guide block 13 is movable and snapped in the guide groove 8 to ensure that the limit plate 12 moves stably in the slide groove 6.

[0032] A knob sleeve 15 is movably sleeved on the coolant delivery pipe 3. The knob sleeve 15 is threadedly connected to the semi-threaded pipe 14 on the two side limit plates 12. A magnetic ring 16 is fixedly embedded on the end wall of the knob sleeve 15. A Z-shaped plate 17 is symmetrically rotated on the side wall of the fixed block 5. The Z-shaped plate 17 is engaged with the end wall of the knob sleeve 15. A magnetic block 18 is fixedly embedded on the side wall of the Z-shaped plate 17. The magnetic block 18 and the magnetic ring 16 attract each other.

[0033] The knob sleeve 15 is threadedly connected to the semi-threaded tube 14 on the two side limit plates 12 to fix the position of the two limit plates 12. Rotating the Z-shaped plate 17 makes the Z-shaped plate 17 engage with the end wall of the knob sleeve 15. The magnetic block 18 and the magnetic ring 16 attract each other to prevent the knob sleeve 15 from loosening.

[0034] Working principle: The barb 9 at the bottom of the pressure plate 4 engages with the barb groove 11 on the side wall of the rubber washer 10, allowing the rubber washer 10 to fit snugly onto the pressure plate 4. The pressure plate 4 and the rubber washer 10 are then fitted into the circular groove 7. At this point, the cooling interface pipe 2 is connected to the coolant delivery pipe 3. The guide block 13 moves along the guide groove 8, and the inclined surface of the limiting plate 12 first contacts the side of the pressure plate 4. As the limiting plate 12 moves towards the coolant delivery pipe 3, the side of the pressure plate 4 moves along the inclined surface of the limiting plate 12, i.e., the limiting plate 12 pushes the pressure plate 4 downwards, causing the pressure plate 4 to press the rubber washer 10 tightly, ensuring the connection between the cooling interface pipe 2 and the coolant delivery pipe 3. The sealing of the pipe 3 connection is ensured until the inner wall of the semi-threaded pipe 14 is engaged with the coolant delivery pipe 3. At this time, the limiting plate 12 engages with the limiting pressure plate 4, so that the knob sleeve 15 is threadedly connected to the semi-threaded pipe 14 on both sides of the limiting plate 12 to fix the position of the two limiting plates 12. Rotating the Z-shaped plate 17 causes the Z-shaped plate 17 to engage with the end wall of the knob sleeve 15. The magnetic block 18 and the magnetic ring 16 attract each other to prevent the knob sleeve 15 from loosening, further improving the connection stability between the cooling interface pipe 2 and the coolant delivery pipe 3, thereby preventing coolant leakage. The coolant is circulated and delivered to the internal cooling chamber of the cylinder head body 1 through the coolant delivery pipe 3 for heat dissipation.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylinder head with a cooling mechanism, comprising: Cylinder head body (1), coolant delivery pipe (3), the cylinder head body (1) is provided with two cooling interface pipes (2) that connect to the internal cooling chamber, and the end of the coolant delivery pipe (3) is fixedly sleeved with a pressure plate (4); The feature is that the coolant delivery pipe (3) is connected to the cooling interface pipe (2) through a connecting component, and the connecting component includes a fixing block (5), a rubber gasket (10), a limiting plate (12), and a knob screw sleeve (15). The pressure plate (4) and rubber gasket (10) are embedded in the circular groove (7). The rubber gasket (10) is sleeved with the cooling interface pipe (2). Two limiting plates (12) are symmetrically and movablely connected in the sliding groove (6). The limiting plates (12) are connected with the pressure plate (4). One side of the limiting plates (12) is provided with an inclined surface and an arc groove that is adapted to be connected with the coolant delivery pipe (3). Guide blocks (13) are symmetrically connected to the two side walls of the limiting plate (12). The guide blocks (13) are movably snapped into the guide groove (8). The ends of the two limiting plates (12) are snapped together. Semi-threaded pipes (14) are connected to the side walls of the limiting plate (12). The semi-threaded pipes (14) on the two limiting plates (12) are compatible. The inner wall of the semi-threaded pipe (14) is snapped into the coolant delivery pipe (3). A knob sleeve (15) is movably sleeved on the coolant delivery pipe (3). The knob sleeve (15) is threadedly connected to the semi-threaded pipe (14) on the two side limit plates (12). A magnetic ring (16) is fixedly embedded on the end wall of the knob sleeve (15). A Z-shaped plate (17) is symmetrically rotated on the side wall of the fixed block (5). The Z-shaped plate (17) is engaged with the end wall of the knob sleeve (15). A magnetic block (18) is fixedly embedded on the side wall of the Z-shaped plate (17). The magnetic block (18) and the magnetic ring (16) attract each other.

2. A cylinder head with a cooling mechanism according to claim 1, characterized in that: The fixing block (5) is symmetrically connected and installed on the side wall of the cylinder head body (1). A sliding groove (6) is provided on the side wall of the fixing block (5). A circular groove (7) is provided on the bottom wall of the sliding groove (6). The cooling interface pipe (2) is located in the center of the circular groove (7). Guide grooves (8) are symmetrically provided on both sides of the sliding groove (6).

3. A cylinder head with a cooling mechanism according to claim 2, characterized in that: The cooling interface pipe (2) is inserted into the coolant delivery pipe (3). A rubber gasket (10) is snapped onto the side end of the pressure plate (4). A barb (9) is equidistantly connected to the bottom end of the pressure plate (4). A barb groove (11) is equidistantly opened on the side wall of the rubber gasket (10). The barb (9) is snapped onto the barb groove (11).