Rail transit air conditioning unit girder double waterproof assembly

Abstract

The utility model discloses a rail transit air conditioning unit girder double waterproof subassembly, waterproof subassembly is located the both sides of car roof operating direction, is used for blocking the rainwater of both sides to enter the car, include: frame, frame connects the outside of car, girder, the girder is sealed connection frame through sealing element, side cover plate, side cover plate is connected on the girder through bolt, side cover plate includes the bent hooking part and the plane part of acute angle angle of difference with hooking part, elastic connecting piece, elastic connecting piece has the connecting groove and elasticity, the connecting groove is used for hooking part insertion, and the elasticity is located between the bending part and frame, and the clearance between bending part and frame is sealed to elasticity.

Description

Technical Field

[0001] This utility model relates to the field of rail transit air conditioning unit technology, and in particular to a double waterproof component for the main beam of a rail transit air conditioning unit. Background Technology

[0002] In existing rail transit air conditioning units, the frame and main beam are typically connected mechanically with rivets, combined with a single layer of sealant for waterproofing. However, long-term exposure to ultraviolet radiation, alternating temperature and humidity, and high-frequency vibration can cause the sealant to break down molecular chains, degrade its elasticity, and peel off at the interface, leading to seal failure at the joints and causing leakage. Water leakage not only affects the comfort of the carriage environment but can also cause secondary failures such as short circuits in electrical components and corrosion of metal structures. Traditional solutions rely on periodic sealant replenishment, which is costly and lacks reliability.

[0003] Therefore, there is an urgent need for a double-waterproof component for the main beam of rail transit air conditioning units to solve the above problems. Utility Model Content

[0004] This utility model provides a double waterproof component for the main beam of a rail transit air conditioning unit to solve the above problems.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A double waterproof component for the main beam of a rail transit air conditioning unit, wherein the waterproof component is located on both sides of the roof of the carriage in the direction of travel, for preventing rainwater from the sides from entering the carriage, comprising:

[0007] A frame, which is connected to the outside of the carriage;

[0008] The main beam is sealed to the frame via a sealing element;

[0009] Side cover plate, the side cover plate is bolted to the main beam, the side cover plate includes a bent hanging part and a flat part forming an acute angle with the hanging part;

[0010] An elastic connector has a connecting groove and an elastic part. The connecting groove is used for the insertion of the hook part, and the elastic part is located between the bending part and the frame to elastically seal the gap between the bending part and the frame.

[0011] In one embodiment, the elastic connector further includes a U-shaped connecting portion connected to the elastic portion, the connecting groove being located inside the U-shaped connecting portion, and the elastic connector extending along the extension direction of the main beam and the side cover plate.

[0012] In one embodiment, a clamping portion is formed on the inner side of the U-shaped connector, and the clamping portion extends toward the connecting groove.

[0013] In one embodiment, the elastic connector is made of silicone or rubber.

[0014] In one embodiment, a side cover support is further included, the side cover support comprising a first connecting segment and a second connecting segment, the first connecting segment fitting against the inner side of the side cover plate, and the second connecting segment being connected to the main beam via stainless steel bolts and washers, and supporting the inner side of the side cover plate away from the elastic connector.

[0015] In one embodiment, a water deflector is also included, which covers the frame and seals the area enclosed by the frame, main beam, side cover, and side cover support.

[0016] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0017] By installing a sealant that can fit snugly between the frame and the main beam, external water flow is prevented from flowing directly down the frame and main beam, thus avoiding corrosion of the materials. Additionally, the top of the side panel and the frame are connected by elastic connectors, providing effective multi-stage sealing and preventing bolts from loosening due to sealant aging. The sealant and elastic connectors form a double waterproof structure, stably isolating water flow from both sides and guiding the water to the outside, preventing further seepage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the waterproof component according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the side cover support structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the elastic connector according to an embodiment of the present invention;

[0021] Figure 4 This is a partial structural diagram of the waterproof component of this utility model on the carriage.

[0022] In the diagram: 1. Carriage; 2. Frame; 3. Main beam; 4. Side cover panel; 41. Hook-up part; 42. Flat part; 5. Elastic connector; 51. Connecting groove; 52. Elastic part; 53. U-shaped connector; 54. Clamping part; 6. Side cover support; 61. First connecting section; 62. Second connecting section; 7. Seal; 8. Bolt; 9. Gasket; 10. Rivet. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0024] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0025] Reference Figure 1-4 This utility model provides a double waterproof component for the main beam 3 of a rail transit air conditioning unit. The waterproof component is located on both sides of the roof of the carriage 1 in the direction of travel, and is used to prevent rainwater from entering the carriage 1. It includes: a frame 2, main beams 3, and side panels 4. The frame 2 serves as a supporting component of the main vehicle structure, supporting the shape of the carriage 1. Main beams 3 are provided on both sides of the frame 2, and side panels 4 are fixedly supported by the main beams 3. The side panels 4 mainly serve to waterproof and isolate water flow from both sides of the roof. The frame 2 is connected to the outside of the carriage 1; the main beams 3 are sealed to the frame 2 by sealing elements 7.

[0026] Reference Figure 1 The main beam is also connected to the frame by rivets 10.

[0027] The side cover 4 is connected to the main beam 3 by bolts 8. The side cover 4 includes a bent hook part 41 and a flat part 42 that forms an acute angle with the hook part 41. The structure of the flat part 42 is approximately a plane, extending outward from the top of the carriage 1, and serves to cover the top of the carriage 1.

[0028] The elastic connector 5 has a connecting groove 51 and an elastic part 52. The connecting groove 51 is used for the insertion of the hook part 41, and the elastic part 52 is located between the bent part and the frame 2 to elastically seal the gap between the bent part and the frame 2. The cross-section of the elastic connector 5 mainly includes two parts: a connecting groove 51 and an elastic part 52. The connecting groove 51 is used for the hook part 41 to be inserted into the interior, and then the top outer side of the elastic part 52 forms a liquid flow channel. After elastic compression, the two ends of the elastic part 52 elastically abut against the bent part and the frame 2, which plays a sealing role and has good shock resistance, making the connection tight.

[0029] In addition, the joint between the frame 2 and the main beam 3 is coated with silicone sealant, and the sealing element 7 is, for example, a sealing filler material. Together with the elastic connector 5, they form a double sealing effect, which improves the life cycle of the overall structure and thus reduces costs.

[0030] In one embodiment, the elastic connector 5 further includes a U-shaped connecting portion 53, which is connected to the elastic portion 52. The connecting groove 51 is located inside the U-shaped connecting portion 53, and the elastic connector 5 extends along the extending direction of the main beam 3 and the side cover plate 4. The two openings of the U-shaped connecting portion 53 converge inwards to hold the connecting portion tightly. The elastic portion 52 on the other side has a closed circular cavity inside, which can provide cushioning while tightly sealing the connection between the connecting portion frames 2.

[0031] Before compression, the round hole inside the elastic connector 5 is 12mm, and its width after compression is 4-6mm. The depth of the connecting groove 51 on the other side is 12mm, and the width of the opening is 1-2mm.

[0032] In one embodiment, a clamping portion 54 is formed on the inner side of the U-shaped connecting portion 53, extending toward the connecting groove 51. The clamping portion 54 is an extended protrusion perpendicular to the inner wall of the U-shaped connecting portion 53. The protrusion can be a strip-shaped protrusion or other shapes, which are not limited here. A strip-shaped protrusion is preferred, as it effectively clamps the hook portion 41, providing elastic stress from both sides of the hook portion 41 toward the center. This prevents the hook portion 41 from easily separating from and detaching from the U-shaped connecting portion 53, providing high impact resistance and cushioning capacity. This enhances the stable fit between the U-shaped connecting portion 53 and the hook portion 41, allowing the elastic portion 52 to fully and elastically abut against the area requiring sealing, thus improving the double sealing effect.

[0033] The elastic connector 5 is made of silicone or rubber. The elastic connector 5 has a Shore hardness of 70±5A (ASTM D2240) and a tensile strength at break of ≥6MPa (ASTM D412).

[0034] In one embodiment, a side cover support 6 is further included. The side cover support 6 includes a first connecting section 61 and a second connecting section 62. The first connecting section 61 fits against the inner side of the side cover plate 4, and the second connecting section 62 is connected to the main beam 3 via stainless steel bolts 8 and washers 9, supporting the inner side of the side cover plate 4 away from the elastic connector 5. The side cover support 6 can support the side cover and the main beam 3, allowing the side cover to be stably supported on the main beam 3. The side cover support 6 includes a first connecting section 61 and a second connecting section 62. The first connecting section 61 is bent and fits against the inner side of the side cover, and is connected to the main beam 3 at the middle position via bolts 8. The second connecting section 62 again supports the other inner side of the side cover plate 4. Stable support from the main beam 3 and the side cover support 6 ensures the side cover is stably supported, allowing water to flow smoothly instead of continuously seeping downwards under gravity, causing losses.

[0035] In one embodiment, a water-retaining wing (not shown) is also included, which covers the frame 2 and seals the area enclosed by the frame 2, main beam 3, side cover 4, and side cover support 6. The water-retaining wing is mainly used to prevent water from flowing into the sealed area through the space between the frame 2, main beam 3, side cover 4, and side cover support 6 at the end of the carriage 1 in the direction of travel, thus preventing internal corrosion or damage.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A double waterproof component for the main beam of a rail transit air conditioning unit, wherein the waterproof component is located on both sides of the roof of the carriage in the direction of travel, for preventing rainwater from the sides from entering the carriage, characterized in that, include: A frame, which is connected to the outside of the carriage; The main beam is sealed to the frame via a sealing element; Side cover plate, the side cover plate is bolted to the main beam, the side cover plate includes a bent hanging part and a flat part forming an acute angle with the hanging part; An elastic connector has a connecting groove and an elastic part. The connecting groove is used for the insertion of the hook part, and the elastic part is located between the bending part and the frame to elastically seal the gap between the bending part and the frame.

2. The double waterproof component for the main beam of a rail transit air conditioning unit according to claim 1, characterized in that, The elastic connector further includes a U-shaped connecting portion, which is connected to the elastic portion. The connecting groove is located inside the U-shaped connecting portion, and the elastic connector extends along the extension direction of the main beam and the side cover plate.

3. The double waterproof component for the main beam of a rail transit air conditioning unit according to claim 2, characterized in that, A clamping portion is formed on the inner side of the U-shaped connector, and the clamping portion extends toward the connecting groove.

4. The double waterproof component for the main beam of a rail transit air conditioning unit according to claim 3, characterized in that, The elastic connector is made of silicone or rubber.

5. The double waterproof component for the main beam of a rail transit air conditioning unit according to claim 1, characterized in that, It also includes a side cover support, which includes a first connecting section and a second connecting section. The first connecting section fits against the inner side of the side cover plate, and the second connecting section is connected to the main beam by stainless steel bolts and washers, and supports the inner side of the side cover plate away from the elastic connector.

6. The double waterproof component for the main beam of a rail transit air conditioning unit according to claim 5, characterized in that, It also includes a water deflector that covers the frame and is used to seal the area enclosed by the frame, main beam, side cover, and side cover support.

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