A railcar expansion tank guard

CN224742431UActive Publication Date: 2026-09-11XINXIANG DINGSHENG RADIATOR
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Patent Information

Application Number
CN202521989888.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-09-11
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

但是,现有技术中的膨胀水箱防护装置多采用刚性外壳,当车辆运行受到外界冲击时,刚性防护结构长时间的使用过程中易将冲击力直接传递至水箱本体,导致箱体变形、焊缝开裂甚至冷却液泄漏,影响车辆安全运行

Benefits of technology

通过设置的第一缓冲机构和第二缓冲机构,方便在受到冲击时,防护罩能够进行防护,防护罩能够进行移动,从而使得第一驱动杆的两端分别在第一转动座和第二转动座上转动,驱动滑块在滑槽内通过连接杆的限位进行移动,从而能够压缩第一弹簧,第一弹簧的弹力能够将冲击力进行转换,使得滑槽内侧的两端受到冲击,且防护罩的移动能够驱动第二固定块压缩第二弹簧,从而能够在防护罩受到冲击力后,第二弹簧的弹力能够驱动防护罩进行复位。避免膨胀水箱本体会受到外界直接作用的冲击力,从而会导致膨胀水箱本体因冲击变形泄漏,损坏膨胀水箱本体。

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Abstract

The utility model discloses a kind of for railcar expansion water tank protective equipment, it is related to railcar expansion water tank technical field, including the expansion water tank body for accommodating the volume expansion caused by temperature change of cooling liquid, and for preventing the expansion water tank body from being deformed and leaking by impact protective cover, the both sides in protective cover interior are equipped with first buffer mechanism for reducing impact, and the both sides between the both sides of first buffer mechanism of protective cover are equipped with second buffer mechanism for buffering protective cover. By being equipped with first buffer mechanism and second buffer mechanism, the expansion water tank body can avoid being subjected to the impact force of direct action of outside, so that the expansion water tank body will be deformed and leak due to impact, damage the expansion water tank body.
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Description

Technical Field

[0001] This utility model relates to the technical field of expansion tanks for rail vehicles, and specifically to a protective device for expansion tanks of rail vehicles. Background Technology

[0002] The expansion tank is a core component of the railcar cooling system. Its function is achieved through four core functions: accommodating thermal expansion, maintaining pressure stability, venting air, and buffering impacts.

[0003] During the operation of rail vehicles, the expansion tank, as a crucial component of the cooling system, is frequently exposed to the external environment. However, existing expansion tank protection devices often employ rigid shells. When the vehicle is subjected to external impacts, the rigid protective structure, over prolonged use, can directly transmit the impact force to the tank body, leading to tank deformation, weld cracking, or even coolant leakage, thus affecting the safe operation of the vehicle. Therefore, those skilled in the art have provided a protective device for the expansion tank of rail vehicles to address the problems mentioned in the background section. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An expansion tank protection device for a railcar includes an expansion tank body for accommodating the volume expansion of coolant caused by temperature changes, and a protective cover for preventing leakage of the expansion tank body due to impact deformation. The protective cover has a first buffer mechanism installed on both sides inside to reduce impact, and a second buffer mechanism for buffering the protective cover is installed between the two sides of the protective cover and the two sides of the first buffer mechanism.

[0005] Preferably, the first buffer mechanism includes a fixing member, and fixing holes for installing bolts connected to the railcar are provided on both sides of the fixing member. The expansion tank body is installed on the railcar on both sides by two fixing members respectively.

[0006] Preferably, a groove is provided on one side of the fixing member, a connecting rod is fixedly installed inside the groove, and sliders are slidably installed on both sides of the connecting rod.

[0007] Preferably, both sliders are slidably disposed within the groove, and a first spring is installed between one end of each slider and one side of the groove, and the first spring is sleeved on the connecting rod.

[0008] Preferably, a first rotating seat is fixedly installed at one end of each of the two sliders, a first driving rod is rotatably installed on each of the two first rotating seats, a second rotating seat is rotatably installed at the other end of each of the two first driving rods, and the two second rotating seats are fixedly installed inside the protective cover.

[0009] Preferably, the second buffer mechanism includes a first fixing block and a second fixing block. The first fixing block is fixedly installed between two fixing members and is movably connected to the protective cover. The second fixing block is fixedly installed on one side of the protective cover.

[0010] Preferably, a second drive rod is fixedly installed at one end of the first fixing block, one end of the second drive rod passes through the second fixing block and is movably connected to the second fixing block, a limit block is fixedly installed at one end of the second drive rod, and a second spring is sleeved on the second drive rod.

[0011] Preferably, both sides of the protective cover are provided with movable grooves to facilitate the movement of the protective cover on the fixing component.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The first and second buffer mechanisms facilitate the protection of the protective cover upon impact. The protective cover can move, causing the two ends of the first drive rod to rotate on the first and second rotating seats respectively. The drive slider moves within the groove via the limiting action of the connecting rod, compressing the first spring. The spring force converts the impact force, impacting both ends inside the groove. The movement of the protective cover drives the second fixed block to compress the second spring, ensuring that the protective cover returns to its original position after impact. This prevents the expansion tank from being directly impacted, which could cause deformation and leakage, damaging the expansion tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a protective device for an expansion tank of a railcar according to an embodiment of this utility model; Figure 2 This is a schematic diagram of the connection structure of the first and second buffer mechanisms in a protective device for an expansion tank of a railcar, according to an embodiment of this utility model. Figure 3 This is a schematic diagram of the structure of the first buffer mechanism for the protective device of the expansion tank of a railcar in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the second buffer mechanism for the protective device of the expansion tank of a railcar in an embodiment of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Expansion tank body; 2. Protective cover; 3. Fixing component; 4. Fixing hole; 5. Slide groove; 6. Connecting rod; 7. Sliding block; 8. First spring; 9. First rotating seat; 10. First drive rod; 11. Second rotating seat; 12. First fixing block; 13. Second fixing block; 14. Second drive rod; 15. Limiting block; 16. Second spring; 17. Movable groove. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to embodiments: This utility model discloses a protective device for the expansion tank of a railcar. (Refer to...) Figure 1-4 It includes an expansion tank body 1 for accommodating the volume expansion of coolant caused by temperature changes, and a protective cover 2 for preventing leakage of the expansion tank body 1 due to impact deformation. The protective cover 2 has a first buffer mechanism installed on both sides inside to reduce impact, and a second buffer mechanism for buffering the protective cover 2 is installed between the two sides of the protective cover 2 and the two sides of the first buffer mechanism.

[0016] By adopting the above technical solution, this utility model, through the provision of a first buffer mechanism and a second buffer mechanism, facilitates the protection of the protective cover 2 upon impact. The protective cover 2 can move, causing the two ends of the first drive rod 10 to rotate on the first rotating seat 9 and the second rotating seat 11 respectively. The drive slider 7 moves within the slide groove 5 through the limiting action of the connecting rod 6, thereby compressing the first spring 8. The elastic force of the first spring 8 can convert the impact force, causing the two ends inside the slide groove 5 to be impacted. Furthermore, the movement of the protective cover 2 can drive the second fixing block 13 to compress the second spring 16, so that after the protective cover 2 is impacted, the elastic force of the second spring 16 can drive the protective cover 2 to reset. This prevents the expansion tank body 1 from being directly impacted by external forces, which could cause the expansion tank body 1 to deform and leak due to impact, thus damaging the expansion tank body 1.

[0017] Reference Figure 1-4The first buffer mechanism includes a fixing member 3. Fixing holes 4 for bolts connected to the railcar are provided on both sides of the fixing member 3. The expansion tank body 1 is mounted on the railcar via two fixing members 3 on each side. A sliding groove 5 is provided on one side of the fixing member 3. A connecting rod 6 is fixedly installed inside the sliding groove 5. Sliding blocks 7 are slidably installed on both sides of the connecting rod 6. Both sliding blocks 7 are slidably disposed within the sliding groove 5. A first spring 8 is installed between one end of each sliding block 7 and one side of the sliding groove 5, and the first spring 8 is sleeved on the connecting rod 6. A first rotating seat 9 is fixedly installed at one end of each sliding block 7. A first driving rod 10 is rotatably installed on each of the two first rotating seats 9. A second rotating seat 11 is rotatably installed at the other end of each of the two first driving rods 10, and both second rotating seats 11 are fixedly installed inside the protective cover 2.

[0018] By adopting the above technical solution, the protective cover 2 can provide protection when subjected to impact. The protective cover 2 can move, so that the two ends of the first drive rod 10 can rotate on the first rotating seat 9 and the second rotating seat 11 respectively. The drive slider 7 moves in the slide groove 5 through the limiting of the connecting rod 6, thereby compressing the first spring 8. The elastic force of the first spring 8 can convert the impact force, so that the two ends inside the slide groove 5 are impacted, thereby absorbing the impact force.

[0019] Reference Figure 1-4 The second buffer mechanism includes a first fixing block 12 and a second fixing block 13. The first fixing block 12 is fixedly installed between two fixing members 3 and is movably connected to the protective cover 2. The second fixing block 13 is fixedly installed on one side of the protective cover 2. A second drive rod 14 is fixedly installed at one end of the first fixing block 12. One end of the second drive rod 14 passes through the second fixing block 13 and is movably connected to it. A limit block 15 is fixedly installed at one end of the second drive rod 14, and a second spring 16 is sleeved on the second drive rod 14. Movable grooves 17 are provided on both sides of the protective cover 2 to facilitate the movement of the protective cover 2 on the fixing members 3.

[0020] By adopting the above technical solution, the movement of the protective cover 2 can drive the second fixing block 13 to compress the second spring 16, so that after the protective cover 2 is subjected to an impact force, the elastic force of the second spring 16 can drive the protective cover 2 to reset.

[0021] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A protective device for an expansion tank of a railcar, comprising an expansion tank body (1) for accommodating the volume expansion of coolant due to temperature changes, and a protective cover (2) for preventing leakage of the expansion tank body (1) due to impact deformation, characterized in that: Both sides of the inside of the protective cover (2) are equipped with a first buffer mechanism for reducing impact, and a second buffer mechanism for buffering the protective cover (2) is installed between the two sides of the protective cover (2) and the two sides of the first buffer mechanism.

2. A guard for a railcar expansion tank as defined in claim 1, wherein: The first buffer mechanism includes a fixing member (3), and fixing holes (4) for installing bolts connected to the railcar are provided on both sides of the fixing member (3). The expansion tank body (1) is installed on the railcar on both sides by two fixing members (3).

3. The protective device for an expansion tank of a railcar according to claim 2, characterized in that: A groove (5) is provided on one side of the fixing member (3), and a connecting rod (6) is fixedly installed inside the groove (5). Sliding blocks (7) are slidably installed on both sides of the connecting rod (6).

4. A protective device for an expansion tank of a railcar according to claim 3, characterized in that: Both sliders (7) are slidably disposed in the groove (5). A first spring (8) is installed between one end of the two sliders (7) and one side of the groove (5), and the first spring (8) is sleeved on the connecting rod (6).

5. A protective device for an expansion tank of a railcar according to claim 4, characterized in that: One end of each of the two sliders (7) is fixedly mounted with a first rotating seat (9), and a first driving rod (10) is rotatably mounted on each of the two first rotating seats (9). The other end of each of the two first driving rods (10) is rotatably mounted with a second rotating seat (11), and the two second rotating seats (11) are fixedly mounted on the inner side of the protective cover (2).

6. A guard for a railcar expansion tank as defined in claim 2, wherein: The second buffer mechanism includes a first fixing block (12) and a second fixing block (13). The first fixing block (12) is fixedly installed between two fixing members (3) and is movably connected to the protective cover (2). The second fixing block (13) is fixedly installed on one side of the protective cover (2).

7. A guard for a railcar expansion tank as defined in claim 6, wherein: A second drive rod (14) is fixedly installed at one end of the first fixed block (12). One end of the second drive rod (14) passes through the second fixed block (13) and is movably connected to the second fixed block (13). A limit block (15) is fixedly installed at one end of the second drive rod (14), and a second spring (16) is sleeved on the second drive rod (14).

8. A guard for a railcar expansion tank as defined in claim 2, wherein: Both sides of the protective cover (2) are provided with movable grooves (17) to facilitate the movement of the protective cover (2) on the fixing member (3).