Automobile cooling liquid kettle

By designing a locking structure and threaded connection in the automotive coolant reservoir, the problem of needing tools to detach the inlet pipe from the inlet port is solved, achieving convenient disassembly and assembly as well as improved sealing performance.

CN224134729UActive Publication Date: 2026-04-17NINGBO JIAKAI AUTO SPARE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JIAKAI AUTO SPARE PARTS CO LTD
Filing Date
2025-06-20
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The inlet pipe of the existing car coolant reservoir requires tools to disconnect from the inlet, which is inconvenient.

Method used

A locking structure was designed, including a snap-fit ​​part set at the liquid inlet and a snap-fit ​​component on the liquid inlet pipe. The sum of the curvature of the snap-fit ​​component and the curvature of the snap-fit ​​part is less than 2π. With the help of a threaded connection and a ball-head spring plunger, quick assembly and disassembly can be achieved.

Benefits of technology

Operators can quickly disassemble the inlet pipe without the aid of tools. The connection is secure, the seal is good, and the probability of coolant leakage is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automobile cooling liquid pot which comprises a pot body, a liquid inlet formed in the top of the pot body, a liquid inlet pipeline detachably installed on the liquid inlet and a locking structure used for locking the liquid inlet and the liquid inlet pipeline. The locking structure comprises a buckling part arranged at the liquid inlet and a buckling piece arranged on the liquid inlet pipeline and matched with the buckling part, and the sum of the radian of the buckling piece and the radian of the buckling part is smaller than 2 pi. The device has the effect that an operator can conveniently detach the liquid inlet pipeline from the liquid inlet under the condition that no tool is used.
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Description

Technical Field

[0001] This application relates to the field of automotive parts, and more particularly to an automotive coolant reservoir. Background Technology

[0002] The automotive coolant reservoir is a core component of the engine cooling system, its main function being to regulate coolant circulation to protect the engine's normal operation. Existing automotive coolant reservoirs typically employ a closed structure, with an outlet at the bottom and an inlet at the top. The inlet connects to the inlet pipe to receive the expanding liquid and vapor discharged from the cooling system.

[0003] The inlet pipe is usually made of heat-resistant rubber hose and is fastened to the inlet with spring clamps. However, when the operator needs to remove the inlet pipe from the inlet, tools such as pliers are required to clamp and pull out the clamps, which is quite inconvenient. Utility Model Content

[0004] To facilitate the removal of the inlet pipe from the inlet without the aid of tools, this application provides an automotive coolant reservoir.

[0005] The automotive coolant reservoir provided in this application adopts the following technical solution:

[0006] An automotive coolant reservoir includes a reservoir body, an inlet located on the top of the reservoir body, an inlet pipe detachably installed on the inlet, and a locking structure for locking the inlet and the inlet pipe. The locking structure includes a latching portion located on the inlet and a latching element located on the inlet and cooperating with the latching portion. The sum of the curvature of the latching element and the curvature of the latching portion is less than 2π.

[0007] By adopting the above technical solution, a locking structure for locking the liquid inlet and the liquid inlet pipe is set. The locking structure includes a buckle part set at the liquid inlet and a buckle element set at the liquid inlet pipe. The sum of the curvature of the buckle element and the curvature of the buckle part is less than 2π. When it is necessary to disassemble the liquid inlet pipe and the liquid inlet, the operator can rotate the liquid inlet pipe to make the buckle element and the buckle part misalign and disengage, so that the liquid inlet pipe can be disassembled from the liquid inlet without the need for tools.

[0008] Optionally, the liquid inlet pipe is provided with an installation through hole and an installation screw is provided in the installation through hole, and the liquid inlet has an installation threaded hole that mates with the installation screw.

[0009] By adopting the above technical solution, an installation through hole and installation screw are provided in the liquid inlet pipe, and an installation threaded hole that mates with the installation screw is provided in the liquid inlet. The liquid inlet pipe and the liquid inlet are connected by threads, resulting in ideal connection strength. This makes it difficult for circumferential displacement to occur between the clamping parts of the liquid inlet pipe and the clamping parts of the liquid inlet, further enhancing the connection stability between the liquid inlet pipe and the liquid inlet, and facilitating the installation and disassembly of both.

[0010] Optionally, the inner peripheral wall of the liquid inlet is provided with a plunger hole and a ball spring plunger is provided in the plunger hole. The outer peripheral wall of the liquid inlet pipe is provided with an annular limiting hole for the plunger ball of the ball spring plunger to engage. When the ball spring plunger is engaged in the annular limiting hole, the mounting screw is aligned with the mounting threaded hole.

[0011] By adopting the above technical solution, the annular limiting hole on the outer circumferential wall of the liquid inlet pipe can cooperate with the ball spring plunger installed in the plunger hole of the liquid inlet. When the ball spring plunger is engaged in the annular limiting hole, the mounting screw is aligned with the mounting threaded hole, which further enhances the locking effect of the liquid inlet pipe and the liquid inlet. It also facilitates the connection of the liquid inlet pipe and the liquid inlet by thread.

[0012] Optionally, the latching portions are spaced apart circumferentially along the axis of the liquid inlet on the outer peripheral wall of the liquid inlet, and the latching members are arranged circumferentially along the axis of the liquid inlet pipe and correspond one-to-one with the latching portions.

[0013] By adopting the above technical solution, since the latching parts are circumferentially spaced along the axis of the liquid inlet on the outer peripheral wall of the liquid inlet, and the latching parts are circumferentially arranged along the axis of the liquid inlet pipe and correspond to the latching parts, the connection between the liquid inlet and the liquid inlet pipe is more stable, the positioning is more accurate, and it is convenient to quickly disassemble and assemble.

[0014] Optionally, the liquid inlet pipe includes a metal hose and a fiberglass sleeve disposed on the outside of the metal hose.

[0015] By adopting the above technical solution, the liquid inlet pipe adopts a structure of metal flexible hose and glass fiber sleeve set on the outside. The glass fiber sleeve has a good heat insulation effect, reducing the probability of operators being burned when disassembling the liquid inlet and the liquid inlet pipe.

[0016] Optionally, the end of the glass fiber sleeve has a first inclined surface that is tilted toward the axis of the liquid inlet.

[0017] By adopting the above technical solution, since the end of the glass sleeve fiber tube has a first inclined surface that is inclined toward the inlet axis, the setting of the first inclined surface can guide the glass sleeve fiber into the inlet, thereby making it easier for the operator to insert the inlet pipe into the inlet.

[0018] Optionally, the inner wall of the inlet has a second inclined surface that mates with the first inclined surface.

[0019] By adopting the above technical solution, a second inclined surface is provided on the inner wall of the liquid inlet to cooperate with the first inclined surface at the end of the glass fiber sleeve, so that the connection between the liquid inlet pipe and the liquid inlet is tighter and the sealing effect is enhanced.

[0020] Optionally, the inner peripheral wall of the liquid inlet is provided with a sealing ring groove, and a sealing ring is provided in the sealing ring groove to seal against the liquid inlet pipe.

[0021] By adopting the above technical solution, a sealing ring groove is opened on the inner circumferential wall of the liquid inlet and a sealing ring is set to seal against the liquid inlet pipe. The sealing ring has inherent elasticity, which makes the connection between the liquid inlet pipe and the liquid inlet tighter, thereby reducing the probability of coolant leakage from the connection between the liquid inlet pipe and the liquid inlet, and helping to ensure the normal operation of the car coolant reservoir.

[0022] Optionally, the vessel body is provided with a clearance groove for arranging the liquid inlet pipe.

[0023] By adopting the above technical solution, the clearance groove on the vessel body can provide a dedicated arrangement space for the liquid inlet pipe, avoiding interference or collision between the liquid inlet pipe and the vessel body during disassembly and assembly, and ensuring the smooth disassembly and assembly and stable operation of the liquid inlet pipe.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. An automotive coolant reservoir, comprising a locking structure for locking the inlet and the inlet pipe, the locking structure including a latching part disposed at the inlet and a latching element disposed at the inlet, wherein the sum of the curvature of the latching element and the curvature of the latching part is less than 2π, so that the operator can remove the inlet pipe from the inlet without the need for tools.

[0026] 2. By opening a plunger hole in the inner circumferential wall of the liquid inlet and setting a ball-head spring plunger in the plunger hole, and opening an annular limiting hole in the outer circumferential wall of the liquid inlet pipe, when the ball-head spring plunger is engaged in the annular limiting hole, the mounting screw is aligned with the mounting threaded hole, which further enhances the locking effect of the liquid inlet pipe and the liquid inlet, and also facilitates the connection of the liquid inlet pipe and the liquid inlet by thread.

[0027] 3. By providing a first inclined surface at the end of the glass fiber sleeve of the liquid inlet pipe that is inclined toward the axis of the liquid inlet, and the liquid inlet having a second inclined surface that matches the first inclined surface, it is convenient for the operator to insert the liquid inlet pipe into the liquid inlet, while also increasing the sealing effect between the liquid inlet pipe and the liquid inlet. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the automotive coolant reservoir in Embodiment 1 of this application.

[0029] Figure 2 This is a cross-sectional schematic diagram of the automotive coolant reservoir in Embodiment 1 of this application.

[0030] Figure 3 It is along in Embodiment 1 of this application Figure 2 A cross-sectional view showing the direction of the arrow along the HH line.

[0031] Figure 4 It is in Embodiment 1 of this application Figure 2 A magnified view of a portion of point A in the middle.

[0032] Figure 5 This is a cross-sectional view of the automotive coolant reservoir in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Jar body; 11. Relief groove; 2. Liquid inlet; 21. Sealing ring groove; 22. Sealing ring; 23. Second bevel; 24. Mounting threaded hole; 25. Plunger hole; 26. Ball spring plunger; 261. Plunger housing; 2611. Internal hexagonal groove; 262. Plunger spring; 263. Plunger ball; 3. Liquid inlet pipe; 31. Metal hose; 32. Fiberglass sleeve; 321. First bevel; 33. Mounting through hole; 34. Mounting screw; 35. Annular limiting hole; 4. Locking structure; 41. Snap-fit ​​part; 42. Snap-fit ​​component. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] Example 1:

[0036] This application discloses an automotive coolant reservoir. (See also...) Figure 1 The automotive coolant reservoir includes a reservoir body 1, an inlet 2 located on the top of the reservoir body 1, an inlet pipe 3 detachably installed on the inlet 2, and a locking structure 4 for locking the inlet 2 and the inlet pipe 3. The reservoir body 1 is provided with a clearance groove 11 for arranging the inlet pipe 3.

[0037] refer to Figure 2 and Figure 3 The locking structure 4 includes a latching part 41 disposed on the top of the liquid inlet 2 and a latching member 42 disposed on the liquid inlet pipe 3. The latching part 41 and the latching member 42 can cooperate with each other, and the sum of the curvature of the latching member 42 and the curvature of the latching part 41 is less than 2π. The operator can rotate the liquid inlet pipe 3 to drive the latching part 41 to rotate, thereby causing the latching part 41 and the latching member 42 to disengage.

[0038] refer to Figure 2The liquid inlet pipe 3 includes a metal hose 31 and a glass fiber sleeve 32 disposed outside the metal hose 31. The end of the glass fiber sleeve 32 has a first inclined surface 321 that is inclined toward the axis of the liquid inlet 2. The inner wall of the liquid inlet 2 has a second inclined surface 23 that cooperates with the first inclined surface 321, which makes it easier for the operator to insert the liquid inlet pipe 3 into the liquid inlet 2, and at the same time increases the sealing effect between the liquid inlet pipe 3 and the liquid inlet 2.

[0039] refer to Figure 2 The inlet 2 has a threaded hole 24 at its bottom, and the inlet pipe 3 has a through hole 33. A mounting screw 34, which mates with the threaded hole 24, is installed in the through hole 33. The inlet pipe 3 and the inlet 2 are connected by threads. In this embodiment, the mounting screw 34 is a knurled high-head screw, which is easy for operators to tighten by hand without the need for tools.

[0040] refer to Figure 4 A sealing ring groove 21 is provided on the inner peripheral wall of the liquid inlet 2, and a sealing ring 22 is arranged in the sealing ring groove 21. The sealing ring 22 is used to seal the contact with the liquid inlet pipe 3. In this embodiment, the sealing ring 22 is an O-ring. The O-ring has good elasticity, which makes the connection between the liquid inlet pipe 3 and the liquid inlet 2 tighter and reduces the probability of coolant leakage.

[0041] refer to Figure 2 and Figure 4 The outer peripheral wall of the inlet pipe 3 is provided with an annular limiting hole 35, and the inner peripheral wall of the inlet 2 is provided with a plunger hole 25, and a ball-head spring plunger 26 for engaging with the annular limiting hole 35 is provided in the plunger hole 25. In this embodiment, the axis of the plunger hole 25 is perpendicular to the axis of the inlet 2. The ball-head spring plunger 26 includes a plunger housing 261, a plunger spring 262 installed in the plunger housing 261, and a plunger ball 263 installed in the plunger housing 261. Under the action of the plunger spring 262, the plunger ball 263 always tends to protrude from the plunger housing 261, so that the plunger ball 263 can engage in the annular limiting hole 35 of the inlet pipe 3, thereby limiting the inlet pipe 3 and making it less prone to shaking. In this embodiment, the ball-head spring plunger 26 is threaded into the plunger hole 25, and the tail end of the plunger housing 261 is provided with an internal hexagonal groove 2611 to facilitate the installation of the ball-head spring plunger 26 into the plunger hole 25 using a tool. When the ball-head spring plunger 26 is engaged with the annular limiting hole 35, the mounting screw 34 is aligned with the mounting threaded hole 24, making it easy for the operator to find the locking position and further lock the liquid inlet pipe 3 with the mounting screw 34 to prevent the liquid inlet pipe 3 from rotating.

[0042] The implementation principle of an automotive coolant reservoir according to an embodiment of this application is as follows: A locking structure 4 for locking the inlet 2 and the inlet pipe 3 is provided in the automotive coolant reservoir. The locking structure 4 includes a latching part 41 provided at the inlet 2 and a latching element 42 provided at the inlet pipe 3. When it is necessary to remove the inlet pipe 3 from the inlet 2, the operator first unscrews the mounting screw 34 by hand, and then rotates the inlet pipe 3 to disengage the latching element 42 from the latching part 41. After that, the inlet pipe 3 can be removed, so that the inlet pipe 3 can be removed from the inlet 2 without the need for tools.

[0043] Example 2:

[0044] The difference between this embodiment and Embodiment 1 lies in the distribution of the latching portion 41 and the latching member 42. (Refer to...) Figure 5 The latching parts 41 are spaced apart circumferentially along the axis of the inlet 2 on the outer peripheral wall of the inlet 2. In this embodiment, there are four latching parts 42. The latching parts 42 are arranged circumferentially along the axis of the inlet pipe 3 and correspond one-to-one with the latching parts 41, making the connection between the inlet 2 and the inlet pipe 3 more secure. After the operator unscrews the mounting screws 34 by hand, he can quickly detach the inlet pipe 3 from the inlet 2 by rotating it.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automobile coolant bottle characterized by comprising: The device includes a pot body (1), an inlet (2) located on the top of the pot body (1), an inlet pipe (3) detachably installed on the inlet (2), and a locking structure (4) for locking the inlet (2) and the inlet pipe (3). The locking structure (4) includes a latching part (41) located on the inlet (2) and a latching member (42) located on the inlet pipe (3) and cooperating with the latching part (41). The sum of the curvature of the latching member (42) and the curvature of the latching part (41) is less than 2π.

2. The automobile coolant container according to claim 1, wherein The liquid inlet pipe (3) is provided with a mounting through hole (33) and a mounting screw (34) is provided in the mounting through hole (33). The liquid inlet (2) has a mounting threaded hole (24) that mates with the mounting screw (34).

3. The automotive coolant jug according to claim 2, wherein The inner peripheral wall of the liquid inlet (2) is provided with a plunger hole (25) and a ball spring plunger (26) is provided in the plunger hole (25). The outer peripheral wall of the liquid inlet pipe (3) is provided with an annular limiting hole (35) for the plunger ball (263) of the ball spring plunger (26) to engage. When the ball spring plunger (26) is engaged in the annular limiting hole (35), the mounting screw (34) is directly opposite the mounting threaded hole (24).

4. The automotive coolant jug of claim 1, wherein, The latching parts (41) are spaced apart on the outer peripheral wall of the liquid inlet (2) along the axis of the liquid inlet (2), and the latching members (42) are arranged along the axis of the liquid inlet pipe (3) and correspond one-to-one with the latching parts (41).

5. The automotive coolant jug as set forth in claim 1, characterized by The liquid inlet pipe (3) includes a metal hose (31) and a glass fiber sleeve (32) disposed outside the metal hose (31).

6. A car coolant reservoir according to claim 5, characterized in that, The end of the glass fiber sleeve (32) has a first inclined surface (321) that is inclined toward the axis of the liquid inlet (2).

7. The automotive coolant jug of claim 6, wherein, The inner wall of the liquid inlet (2) has a second inclined surface (23) that cooperates with the first inclined surface (321).

8. The automotive coolant jug of claim 1, wherein, The inner circumferential wall of the liquid inlet (2) is provided with a sealing ring groove (21) and a sealing ring (22) is provided in the sealing ring groove (21) to seal against the liquid inlet pipe (3).

9. The automotive coolant jug of claim 1, wherein, The vessel body (1) is provided with a clearance groove (11) for the arrangement of the liquid inlet pipe (3).