Stainless steel connecting elbow for automobile water tank

Abstract

The utility model relates to the technical field of automobile parts, and disclose a kind of stainless steel connecting elbow pipe of automobile water tank, including two curved pipes, two straight pipes and a connecting pipe, two ends of two curved pipes are fixedly connected with protruding pipe, the similar end of two straight pipes and the two ends of connecting pipe are all provided with the recess of cooperation with protruding pipe, the similar end of two straight pipes and the circumferential outer wall of the two ends of connecting pipe are all fixedly connected with flange plate two, the circumferential outer wall of two ends of two curved pipes is fixedly connected with flange plate one respectively with the flange plate two cooperation of one end of one of straight pipe and one end of connecting pipe.The utility model designs connecting elbow pipe as the modularization design of multiple components, so that single section of pipeline can be individually replaced and maintained, material is saved, and by being provided as corrugated type, displacement can be absorbed itself, and after replacement, pipeline stress does not need to be readjusted, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically to a stainless steel connecting elbow for automotive water tanks. Background Technology

[0002] The automotive cooling system is one of the core subsystems that ensures the normal operation of the engine. Its core component, the radiator, manages engine thermal performance by circulating coolant. The connecting elbow serves as a key pipeline for coolant flow, connecting the radiator, water pump, engine block, and heating system.

[0003] A search revealed Chinese patent CN206647163U, which discloses an automotive water tank. This device, through the addition of a cooling water pipe to the water tank and cooling fan, can improve heat dissipation efficiency to a certain extent and achieve rapid heat dissipation. This not only achieves rapid heat dissipation but also reduces costs. The structure is simple and easy to implement. However, the water tank connecting bend, as one of the important components of the water tank, is generally made in one piece. If a single section is damaged, the entire connecting bend needs to be replaced, which wastes materials. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stainless steel connecting elbow for automotive water tanks to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a stainless steel connecting elbow for an automotive water tank, comprising two bent pipes, two straight pipes, and one connecting pipe. Both ends of the two bent pipes are fixedly connected to convex pipes. The adjacent ends of the two straight pipes and both ends of the connecting pipe are provided with grooves for cooperation with the convex pipes. Flanges are fixedly connected to the outer circumference of the adjacent ends of the two straight pipes and the outer circumference of both ends of the connecting pipe. Flanges are fixedly connected to the outer circumference of both ends of the two bent pipes, respectively cooperating with one end of one straight pipe and one end of the connecting pipe.

[0006] As a further embodiment of this utility model, a rubber sealing ring 1 is adhered to one inner wall of each of the plurality of grooves, and a rubber sealing ring 2 that cooperates with the corresponding rubber sealing ring 1 is adhered to one end of each of the plurality of protruding tubes.

[0007] As a further embodiment of this utility model, the inner circumferential walls of the two curved pipes, the two straight pipes, and the connecting pipe are all provided with a nano-ceramic coating, the thickness of which is 10-15μm.

[0008] As a further embodiment of this utility model, a high-temperature resistant coating is provided on the outer circumference of the two curved pipes, the two straight pipes and the connecting pipe. The high-temperature resistant coating is a silicone layer and the thickness of the high-temperature resistant coating is 1.5 mm.

[0009] As a further embodiment of this utility model, the middle part of the connecting pipe is a corrugated expansion structure with a wave depth of 2mm and a wave pitch of 8mm.

[0010] As a further embodiment of this utility model, the bent pipe, straight pipe and connecting pipe are all made of SUS304 stainless steel.

[0011] As a further embodiment of this utility model, multiple sets of the convex tubes and the flared grooves form a conical sealing surface, and the first rubber sealing ring and the second rubber sealing ring fit into the conical sealing surface.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model designs the connecting bend into a modular design consisting of multiple components, which allows for individual replacement and maintenance of single pipe sections, saving materials.

[0014] 2. This utility model, by designing the connecting pipe as corrugated, can absorb displacement itself, and there is no need to readjust the pipeline stress after replacement, making it convenient to use.

[0015] 3. This utility model, through the provision of a nano-ceramic coating and a high-temperature resistant coating, uses SUS304 stainless steel + nano-ceramic coating to prevent electrolytic corrosion and deposit adhesion, and absorbs most of the thermal stress impact to reduce the thermal load of the pipeline, thereby increasing the service life of the bend. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the explosion structure.

[0018] Figure 3 This utility model Figure 2 A partially enlarged structural diagram.

[0019] Figure 4 This is an enlarged structural diagram of the connecting part of this utility model.

[0020] The attached diagram is labeled as follows: 1. Bent pipe; 2. Straight pipe; 3. Connecting pipe; 4. Flange 1; 5. Flange 2; 6. Raised pipe; 7. Groove; 8. Rubber sealing ring 1; 9. High-temperature resistant coating; 10. Nano-ceramic coating; 11. Rubber sealing ring 2. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4 This utility model provides a stainless steel connecting elbow for an automotive water tank, comprising two bent pipes 1, two straight pipes 2, and a connecting pipe 3. Both ends of the two bent pipes 1 are welded with protruding pipes 6. The near ends of the two straight pipes 2 and both ends of the connecting pipe 3 are provided with grooves 7 that cooperate with the protruding pipes 6. Flanges 2 5 are welded to the outer circumference of the near ends of the two straight pipes 2 and the outer circumference of both ends of the connecting pipe 3. Flanges 1 4 are welded to the outer circumference of both ends of the two bent pipes 1, respectively cooperating with one end of the flange 2 5 of one straight pipe 2 and one end of the connecting pipe 3.

[0023] The connecting bends are designed as a modular system consisting of multiple components, allowing individual pipe sections to be replaced and maintained separately, thus saving materials.

[0024] Furthermore, multiple sets of convex tubes 6 and grooves 7 are flared to form a conical sealing surface, and rubber sealing ring 1 8 and rubber sealing ring 2 11 fit into the conical sealing surface.

[0025] Straight pipe 2, bent pipe 1, connecting pipe 3, bent pipe 1 and straight pipe 2 are spliced ​​in sequence. After applying high-temperature grease to the convex pipe 6, it is inserted into the groove 7. The flange 1 4 and flange 2 5 are aligned and fixed with stainless steel bolts to form a complete connecting bend.

[0026] In this utility model, rubber sealing rings 1-8 are bonded to the inner wall of one side of multiple grooves 7, and rubber sealing rings 2-11 that cooperate with the corresponding rubber sealing rings 1-8 are bonded to one end of multiple protruding tubes 6.

[0027] In this invention, the inner circumferential walls of the two curved pipes 1, the two straight pipes 2, and the connecting pipe 3 are all provided with a nano-ceramic coating 10. The nano-ceramic coating 10 is composed of Al2O3-ZrO2 composite ceramic and has a thickness of 10-15μm.

[0028] An Al2O3-ZrO2 composite ceramic layer was plasma sprayed onto the inner circumference of two curved pipes 1, two straight pipes 2, and one connecting pipe 3. After spraying, the layer was heat-treated and cured at 400℃.

[0029] Furthermore, the outer circumference of the two bent pipes 1, the two straight pipes 2, and the connecting pipe 3 are all provided with a high-temperature resistant coating 9, which is a silicone layer with a thickness of 1.5mm.

[0030] Liquid silicone is impregnated onto the inner circumference of two curved pipes 1, two straight pipes 2, and a connecting pipe 3 to form a high-temperature resistant layer 9.

[0031] With the addition of a nano-ceramic coating 10 and a high-temperature resistant coating 9, the SUS304 stainless steel + nano-ceramic coating prevents electrolytic corrosion and deposit adhesion, and absorbs most of the thermal stress impact to reduce the thermal load of the pipeline, thereby increasing the service life of the bend.

[0032] Furthermore, the bent pipe 1, straight pipe 2, and connecting pipe 3 are all made of SUS304 stainless steel.

[0033] In this utility model, the middle part of the connecting pipe 3 is a corrugated expansion structure with a wave depth of 2mm and a wave pitch of 8mm.

[0034] By setting the connecting pipe 3 to a corrugated type, it can absorb displacement itself, and there is no need to readjust the pipeline stress after replacement, making it convenient to use.

[0035] The use of this utility model involves the following steps:

[0036] S1: An Al2O3-ZrO2 composite ceramic layer is plasma sprayed onto the inner circumference of two bent pipes 1, two straight pipes 2 and one connecting pipe 3, and then cured by heat treatment at 400℃ after spraying.

[0037] S2: Liquid silicone is dipped into the inner circumference of two curved pipes 1, two straight pipes 2 and one connecting pipe 3 to form a high-temperature resistant layer 9;

[0038] S3: Straight pipe 2, bent pipe 1, connecting pipe 3, bent pipe 1 and straight pipe 2 are spliced ​​in sequence. After the convex pipe 6 is coated with high temperature grease, it is inserted into the groove 7. The flange 1 4 and flange 2 5 are aligned and fixed with stainless steel bolts to form a complete connecting bend.

[0039] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0040] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0041] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A stainless steel connecting elbow for an automotive water tank, comprising two bent pipes (1), two straight pipes (2), and a connecting pipe (3), characterized in that: Both ends of the two curved pipes (1) are fixedly connected with convex pipes (6). The near ends of the two straight pipes (2) and both ends of the connecting pipe (3) are provided with grooves (7) that cooperate with the convex pipes (6). The outer circumference of the near ends of the two straight pipes (2) and the outer circumference of both ends of the connecting pipe (3) are fixedly connected with flanges (5). The outer circumference of both ends of the two curved pipes (1) are fixedly connected with flanges (4) that cooperate with flanges (5) at one end of one straight pipe (2) and one end of the connecting pipe (3).

2. The stainless steel connecting elbow for an automotive water tank according to claim 1, characterized in that: Rubber sealing ring 1 (8) is bonded to one side of the inner wall of each of the multiple grooves (7), and rubber sealing ring 2 (11) that is used in conjunction with the corresponding rubber sealing ring 1 (8) is bonded to one end of each of the multiple protrusions (6).

3. The stainless steel connecting elbow for an automotive water tank according to claim 1, characterized in that: The inner circumferential walls of the two curved pipes (1), the two straight pipes (2) and the connecting pipe (3) are all provided with a nano-ceramic coating (10), the thickness of which is 10-15 μm.

4. The stainless steel connecting elbow for an automotive water tank according to claim 3, characterized in that: The outer circumferential walls of the two curved pipes (1), the two straight pipes (2) and the connecting pipe (3) are all provided with a high temperature resistant coating (9), which is a silicone layer and has a thickness of 1.5 mm.

5. The stainless steel connecting elbow for an automotive water tank according to claim 1, characterized in that: The middle part of the connecting pipe (3) is a corrugated expansion structure with a wave depth of 2mm and a wave pitch of 8mm.

6. The stainless steel connecting elbow for an automotive water tank according to claim 4, characterized in that: The bent pipe (1), straight pipe (2) and connecting pipe (3) are all made of SUS304 stainless steel.

7. The stainless steel connecting elbow for an automotive water tank according to claim 1, characterized in that: The multiple sets of convex tubes (6) and grooves (7) are flared to form a conical sealing surface, and the first rubber sealing ring (8) and the second rubber sealing ring (11) fit into the conical sealing surface.

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