Automobile expansion tank mounting structure

Abstract

The utility model discloses an automobile expansion box installation structure which comprises a clamping seat and a support, the clamping seat is arranged on one side of an expansion box, a notch is formed in the clamping seat, the support is provided with a guide plate, the guide plate extends into the notch, and locking structures are arranged on the clamping seat and the support. And the installation reliability is high.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology. Specifically, this utility model relates to an automotive expansion box mounting structure. Background Technology

[0002] The expansion tank is a key component of the automotive cooling system, and its main functions can be divided into the following five aspects: First, it provides a coolant filling port; second, it stores coolant, ensuring that the cooling system is always full of coolant, so that the coolant has room to expand when heated and has a compensating margin when cooled and contracts; third, it has a degassing function, as the expansion tank is located at the highest point of the system and usually has a vent on it, through which gas in the cooling system is discharged.

[0003] There are two common expansion tank mounting structures: one is a bolted connection, where through holes are set in the mounting bracket of the expansion tank body, and bolts are used to connect it to the vehicle body. Bolted connections have high requirements for the manufacturing precision of the mounting bracket and the positional tolerance of the mounting holes, resulting in high manufacturing costs, low assembly efficiency, and frequent problems such as misalignment of holes and failure to release assembly stress. The other is a snap-fit ​​connection, where a dovetail boss is set on the expansion tank body, and a dovetail groove bracket is set on the corresponding vehicle body. In practical applications, it has been found that the dovetail groove snap-fit ​​structure has problems such as loosening and easy detachment of the expansion tank, liquid level tilting, and high requirements for interference fit.

[0004] Utility model patent CN 209617279U, published on November 12, 2019, discloses a structure for mounting an automotive expansion tank, including a bracket that is bolted to a front compartment crossbeam. The bracket includes a bracket body and reinforcing ribs, a first flange, and a second flange disposed on the bracket body. However, this automotive expansion tank mounting structure does not solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an automotive expansion box mounting structure that offers high assembly efficiency and high installation reliability.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The automotive expansion tank mounting structure includes a mounting bracket and a support. The mounting bracket is located on one side of the expansion tank and has a slot. The support has a guide plate that extends into the slot. The mounting bracket and the support are equipped with a locking structure.

[0008] The locking structure includes an arc-shaped groove and an arc-shaped protrusion. The upper outer side of the card seat is provided with a sliding groove, and the arc-shaped groove is provided on the sliding groove. The middle part of the bracket is provided with a locking plate. There are two guide plates, and the locking plate is located between the guide plates. The arc-shaped protrusion is provided on the locking plate, and the arc-shaped protrusion cooperates with the arc-shaped groove.

[0009] The inner side of the slot is provided with a first rib, the first ribs are arranged in pairs, and the guide plate is provided with a second rib, the first rib abutting against the second rib.

[0010] The bracket has clearance grooves on both sides of the guide plate, and the clearance grooves are U-shaped.

[0011] The card holder is fixedly connected to the outer wall of the expansion box by longitudinal ribs, and there are multiple longitudinal ribs.

[0012] The opening end of the slot is vertical.

[0013] The bracket has a Z-shaped structure, and round holes and waist-shaped holes are respectively provided at both ends of the bracket.

[0014] The bottom of the bracket is provided with a flange.

[0015] The support frame is reinforced from the end to the middle.

[0016] The technical advantages of this utility model are as follows: The automotive expansion box installation structure uses a bracket as the installation point for the expansion box. Through the cooperation of the guide plate and the slot of the expansion box, and the interference fit of the protruding ribs at the mating surfaces, a stable installation of the expansion box is achieved. Furthermore, the locking effect of the arc-shaped protrusion and arc-shaped groove improves the reliability of the expansion box's fixation. Compared with existing technologies, this design avoids the adverse effects of bolted connections, saves on the use of connecting parts, improves assembly efficiency, reduces manufacturing costs, and simplifies installation. The expansion box is stable and reliable after installation, is not easily loosened or detached, and the installation stability of the expansion box is guaranteed. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a schematic diagram of the expansion box installation structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the card holder structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the support structure in this utility model;

[0021] Figure 4 This is an assembly diagram of the expansion box installation structure of this utility model.

[0022] The markings in the diagram are as follows: 1. Card holder; 11. Groove; 12. First rib; 13. Longitudinal rib; 14. Slide groove; 15. Arc groove; 2. Bracket; 21. Guide plate; 22. Second rib; 23. Locking plate; 24. Arc protrusion; 25. Flanged edge; 26. Clearance groove; 27. Round hole; 28. Waist-shaped hole; 29. ​​Reinforcing rib; 3. Upper crossbeam of water tank; 4. Expansion tank. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0024] like Figures 1 to 3 As shown, the automotive expansion box mounting structure includes a mounting base 1 and a bracket 2. The mounting base 1 is located on one side of the expansion box 4 and has a slot 11. The bracket 2 has a guide plate 21 that extends into the slot 11. Both the mounting base 1 and the bracket 2 have locking mechanisms. The mounting base 1 is a B-type slot structure with two symmetrically arranged slots 11. The bracket 2 has two guide plates 21 corresponding to the slots 11. The expansion box 4 is lowered so that the guide plates 21 are inserted into the slots 11, thus installing the expansion box 4. The expansion box 4 also achieves a locking function through the cooperation of an arc-shaped protrusion 24 and an arc-shaped groove 15.

[0025] like Figures 1 to 3 As shown, the locking structure includes an arc-shaped groove 15 and an arc-shaped protrusion 24. A sliding groove 14 is provided on the upper outer side of the card holder 1, and the arc-shaped groove 15 is located on the sliding groove 14. A locking plate 23 is provided in the middle of the bracket 2. Two guide plates 21 are provided, with the locking plate 23 located between the guide plates 21. The arc-shaped protrusion 24 is located on the locking plate 23 and engages with the arc-shaped groove 15. The sliding groove 14 serves as a contact guide for the locking plate 23, and the locking plate 23 also provides a horizontal limiting function for the expansion box 4. When the guide plate 21 extends into the slot 11 to form a fit, the locking plate 23 also simultaneously engages with the sliding groove 14. After the guide plate 21 and slot 11 are installed in place, the arc-shaped protrusion 24 engages with the arc-shaped groove 15 to form a locking effect, thereby preventing the expansion box 4 from disengaging and improving the reliability of the fixation.

[0026] like Figure 2 and Figure 3As shown, the inner side of the slot 11 is provided with a first protruding rib 12, which are arranged in pairs. The guide plate 21 is provided with a second protruding rib 22, and the first protruding rib 12 and the second protruding rib 22 abut against each other. In order to increase the structural rigidity of the bracket 2 and prevent the expansion box 4 from shaking, the inner wall of the slot 11 is also symmetrically provided with first protruding ribs 12, and the surface of the guide plate 21 is symmetrically provided with second protruding ribs 22. When the guide plate 21 is inserted into the slot 11, the first protruding ribs 12 and the second protruding ribs 22 contact each other and form an interference fit, which further improves the installation stability of the expansion box 4. The length of the first protruding rib 12 is consistent with the depth of the slot 11 to ensure that the interference effect is uniform and reliable, and the second protruding rib 22 extends to the bottom of the bracket 2.

[0027] like Figure 3 As shown, the bracket 2 has U-shaped clearance grooves 26 on both sides of the guide plate 21. These grooves allow the bracket to avoid the card holder 1 and facilitate installation while preventing over-positioning. They also ensure a stable fit between the arc-shaped groove 15 and the arc-shaped protrusion 24 after the guide plate 21 is inserted into the slot 11, guaranteeing a reliable locking effect. The U-shaped design of the clearance grooves 26 helps reduce stress concentration and improves the reliability of the bracket 2.

[0028] like Figure 2 As shown, the card holder 1 is fixedly connected to the outer wall of the expansion box 4 by longitudinal ribs 13, and there are multiple longitudinal ribs 13. The card holder 1 is integrally formed with the outer shell of the expansion box 4 by injection molding. In order to reduce weight and prevent shrinkage defects caused by uneven wall thickness during injection molding, one side of the card holder 1 is connected to the body of the expansion box 4 by five longitudinal ribs 13.

[0029] like Figure 2 As shown, the opening end of slot 11 is vertical. The above structure enables the expansion box 4 to be installed from top to bottom, which is simple and convenient to operate and facilitates later inspection and maintenance. This installation method facilitates installation and maintenance operations and also avoids the expansion box 4 from falling down.

[0030] like Figure 3 and Figure 4 As shown, the bracket 2 has a U-shaped structure, with a round hole 27 and an oblong hole 28 at each end. After the round hole 27 and oblong hole 28 fix the two ends of the bracket 2 to the upper crossbeam 3 of the water tank, the U-shaped structure of the bracket 2 provides installation space for the mounting seat 1 of the expansion tank 4 in its middle area, and the U-shaped bracket 2 helps to improve the structural strength. The oblong hole 28 has a certain adjustment margin, which facilitates the adjustment of the bracket 2 when it is fixed on the upper crossbeam 3 of the water tank using connectors.

[0031] like Figure 3 As shown, the bottom of the bracket 2 is provided with a flange 25. The flange 25 can form a certain contact limit with the crossbeam 3 on the water tank, which helps to share the weight of the expansion tank 4 borne by the bracket 2.

[0032] like Figure 3 As shown, the support 2 has reinforcing ribs 29 from its end to its middle. This structure can further improve the structural strength of the support 2, thereby enhancing the installation firmness and reliability of the expansion box 4.

[0033] like Figure 3 As shown, the bracket 2 is a one-piece structure. The various components of the bracket 2 are formed through processes such as bending, stamping, and punching, ensuring the overall reliability of the bracket 2. Therefore, the expansion box 4 can be installed in place without auxiliary fasteners or additional connection processes during assembly, which simplifies the assembly process and reduces the number of assembly tools.

[0034] When assembling the expansion box 4, align the two slots 11 with the two guide plates 21, and push the expansion box 4 downwards until the arc-shaped protrusion 24 of the locking plate 23 is engaged in the arc-shaped groove 15 to complete the assembly. This method has the advantages of easy installation, high assembly efficiency, and reliable locking. The second protruding rib 22 on the guide plate 21 is interference-fitted with the two first protruding ribs 12 on the inner wall of the slot 11 to prevent the expansion box 4 from shaking and ensure high fixing reliability.

[0035] This automotive expansion box mounting structure uses bracket 2 as the mounting point for expansion box 4. Through the cooperation of guide plate 21 and slot 11 of expansion box 4, the expansion box 4 is stably installed under the interference fit of the protruding ribs at the mating surfaces. Furthermore, the locking effect of arc protrusion 24 and arc groove 15 improves the fixing reliability of expansion box 4. Compared with the prior art, it avoids the adverse effects caused by bolt connection, saves the use of connecting parts, improves assembly efficiency, reduces manufacturing costs, and is simple and convenient to install. Moreover, the expansion box 4 is stable and reliable after installation, and is not easy to loosen or fall off, thus ensuring the installation stability of expansion box 4.

[0036] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A mounting structure for an automotive expansion tank, characterized in that: It includes a card holder (1) and a bracket (2). The card holder (1) is located on one side of the expansion box (4). The card holder (1) has a slot (11). The bracket (2) has a guide plate (21) that extends into the slot (11). The card holder (1) and the bracket (2) are provided with a locking structure.

2. The automotive expansion tank mounting structure according to claim 1, characterized in that: The locking structure includes an arc groove (15) and an arc protrusion (24). The upper outer side of the card holder (1) is provided with a sliding groove (14). The arc groove (15) is provided on the sliding groove (14). The bracket (2) is provided with a locking plate (23) in the middle. There are two guide plates (21). The locking plate (23) is located between the guide plates (21). The arc protrusion (24) is provided on the locking plate (23). The arc protrusion (24) cooperates with the arc groove (15).

3. The automotive expansion tank mounting structure according to claim 2, characterized in that: The groove (11) is provided with a first rib (12) on the inner side, the first rib (12) is provided in pairs, and the guide plate (21) is provided with a second rib (22), the first rib (12) and the second rib (22) abut against each other.

4. The automotive expansion tank mounting structure according to claim 3, characterized in that: The bracket (2) is provided with clearance grooves (26) on both sides of the guide plate (21), and the clearance grooves (26) are U-shaped.

5. The automotive expansion tank mounting structure according to claim 4, characterized in that: The card holder (1) is fixedly connected to the outer wall of the expansion box (4) with longitudinal ribs (13), and there are multiple longitudinal ribs (13).

6. The automotive expansion tank mounting structure according to any one of claims 1-5, characterized in that: The opening end of the groove (11) is in the vertical direction.

7. The automotive expansion tank mounting structure according to claim 6, characterized in that: The bracket (2) has a Z-shaped structure, and the two ends of the bracket (2) are respectively provided with a round hole (27) and a waist-shaped hole (28).

8. The automotive expansion tank mounting structure according to claim 1, characterized in that: The bottom of the bracket (2) is provided with a flange (25).

9. The automotive expansion tank mounting structure according to claim 1, characterized in that: The support (2) is provided with reinforcing ribs (29) from the end to the middle.

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