Air duct sealing mechanism for sliding plug door of new energy bus

By installing limiters and sealing mechanisms on the sliding doors of new energy buses, the problem of poor sealing effect has been solved, achieving effective sealing between the door and the vehicle body, preventing air conditioning leakage, and improving energy utilization efficiency.

CN223764202UActive Publication Date: 2026-01-06JIANGSU SHENGLONG ELECTROMECHANICAL MFG CO LTD
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Patent Information

Application Number
CN202423210855.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-01-06
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

In existing technologies, the sealing mechanism of the air duct of the sliding door in new energy buses cannot effectively improve the sealing effect, resulting in air conditioning air leaking from the gap between the door and the body door panel, wasting energy.

Method used

A sealing mechanism for the air duct of a new energy bus sliding door was designed, which includes a door limiter and a sealing mechanism. By setting a limiting shell and a sliding plate at the top and bottom of the door, combined with a guide rod, a moving plate and a sealing strip, the gap between the door panel and the door frame is sealed.

Benefits of technology

It effectively prevents air conditioning air from leaking between the door and the door panel frame, improves the sealing effect, and ensures the efficiency of air conditioning energy utilization.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223764202U_ABST
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Abstract

The utility model discloses a new energy bus sliding plug door air duct sealing mechanism which comprises a bus door, bus door limiters and a sealing mechanism, the bus door limiters are arranged at the top and the bottom of the bus door, the sealing mechanism comprises limiting shells, and the limiting shells are arranged at the top and the bottom of the bus door. And sliding plates are slidably connected to the two sides of an inner cavity of the limiting shell, guide rods are fixedly connected to the outer sides of the sliding plates, the sides, away from the sliding plates, of the guide rods penetrate through the outer portion of the limiting shell to be fixedly connected with movable plates, and the inner sides of the movable plates are fixedly connected with two side sealing strips. By arranging the sealing mechanism, the gap between the automobile door plate and the automobile door frame can be sealed, no gap is generated between the automobile door and the automobile door plate frame in the using process, air blown out of an air conditioner is prevented from leaking from the gap between the automobile door and the automobile door plate frame, the sealing effect can be improved, and therefore a large amount of air conditioner energy is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of bus technology, specifically to a sealing mechanism for the air duct of a new energy bus sliding door. Background Technology

[0002] A passenger vehicle generally refers to a commercial vehicle that carries nine or more people (including the driver's seat), typically has a square-shaped carriage, and is used to transport passengers and their personal luggage. This type of vehicle is mainly used for public transportation and group transport.

[0003] There are many types of buses, and new energy buses are one of them. New energy buses need to use a sliding door duct when opening and closing the doors. For example, Chinese patent discloses a sealing mechanism for a sliding door duct of a bus, publication (announcement) number: CN220031667U. The follow-up component is installed on the door frame of the bus sliding door. The follow-up component is installed in conjunction with the slide rail. The slide rail is fixed on the body frame of the bus sliding door and is located on one side of the opening channel on the body frame. The follow-up component is connected to one end of the crotch cloth, and the other end of the crotch cloth is connected to the retractor assembly. The retractor assembly is installed on the body frame and is located at the end of the opening channel away from the door frame. This invention, when the bus sliding door is opened, moves the door frame and follower assembly towards the retractor assembly, which then retracts the crotch cover. When the bus sliding door is closed, the door frame and follower assembly move away from the retractor assembly, pulling out the crotch cover to cover the air duct. This improves the aesthetics of the sliding door's air duct, reduces the amount of air blown out of the air duct by the air conditioner, and makes it less likely to touch the drive mechanism inside the sliding door, thus improving safety. However, while the aforementioned patent's door frame and follower assembly move away from the retractor assembly and pull out the crotch cover to cover the air duct, improving the aesthetics of the sliding door's air duct, it does not improve the sealing effect. This results in gaps easily forming between the door and the body door panel frame during use, allowing air blown out of the air conditioner to leak from these gaps, thus wasting a significant amount of air conditioning energy. Utility Model Content

[0004] To address the problems mentioned in the background section, the present invention aims to provide a sealing mechanism for the air duct of a new energy bus sliding door, which has the advantage of improving the sealing effect and solves the problem that the sealing mechanism for the air duct of a new energy bus sliding door cannot improve the sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing mechanism for the air duct of a new energy bus sliding door, comprising:

[0006] Car door;

[0007] Door limiters, wherein the door limiters are disposed at the top and bottom of the door;

[0008] A sealing mechanism includes a limiting shell, which is disposed at the top and bottom of the vehicle door. Slide plates are slidably connected to both sides of the inner cavity of the limiting shell. A guide rod is fixedly connected to the outer side of the slide plate. A movable plate is fixedly connected to the side of the guide rod away from the slide plate through to the outside of the limiting shell. Sealing strips on both sides are fixedly connected to the inner side of the movable plate. Upper and lower sealing strips are fixedly connected to the top and bottom of the inner side of the movable plate.

[0009] As a preferred embodiment of the present invention, the car door includes a car door frame, with car door panels movably connected to both sides of the front of the car door frame, a car door glass movably mounted on the front of the car door panel, and a car door connector provided on the outer side of the car door panel.

[0010] As a preferred embodiment of this utility model, the door limiter includes a positioning shell, which is fixedly connected to the top and bottom of the front of the door frame. A connecting rod is fixedly connected to the top and bottom of the door panel. A fixed bearing is fixedly connected to the surface of the connecting rod, and the surface of the outer ring of the fixed bearing is fixedly connected to the inside of the upper and lower sealing strips.

[0011] As a preferred embodiment of this utility model, the top and bottom of the guide rod are both fixedly connected to a reinforcing plate, and the side of the reinforcing plate closest to the slide plate is fixedly connected to the slide plate.

[0012] In a preferred embodiment of this invention, guide blocks are fixedly connected to the top and bottom of the movable plate, and guide grooves are provided at the top and bottom of the inner wall of the limiting shell, with the guide grooves slidably connected to the guide blocks.

[0013] As a preferred embodiment of this utility model, through holes are provided on both sides of the limiting shell, and the interior of the through holes is slidably connected to the surface of the guide rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting a sealing mechanism, can seal the gap between the door panel and the door frame. During use, no gap will be generated between the door and the body door panel frame, preventing the air blown out by the air conditioner from leaking out of the gap between the door and the body door panel frame, which can improve the sealing effect and thus ensure a large amount of air conditioning energy.

[0016] 2. This utility model can seal the car door area by setting up a door. The user fixes the door frame to the car door and then closes the door panel to seal the space inside the door frame. The door panel is made transparent through the door glass, which makes it convenient for passengers to observe the exterior of the car.

[0017] 3. This utility model can limit one end of the car door panel by setting a door limiter. The user fixes the connecting rod to the top and bottom of the car door panel, and then inserts the fixed bearing on the connecting rod into the inside of the positioning housing. The positioning housing limits the fixed bearing to prevent the fixed bearing from moving only left and right. The fixed bearing limits one side of the car door panel through the connecting rod to prevent the one side of the car door panel from moving back and forth when it is opened. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This utility model Figure 1 3D structural diagram of the CRRC door limiter;

[0020] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the central sealing mechanism.

[0021] In the diagram: 1. Door; 101. Door frame; 102. Door panel; 103. Door glass; 104. Door connector; 2. Door limiter; 21. Positioning housing; 22. Connecting rod; 23. Fixed bearing; 3. Sealing mechanism; 31. Limiting housing; 32. Slide plate; 33. Guide rod; 34. Moving plate; 35. Side sealing strips; 36. Upper and lower sealing strips; 4. Reinforcing plate; 5. Guide block; 6. Guide groove; 7. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 3 As shown, the present invention provides a sealing mechanism for the air duct of a new energy bus sliding door, comprising:

[0024] Car door 1;

[0025] Door limiter 2, which is installed at the top and bottom of door 1;

[0026] The sealing mechanism 3 includes a limiting shell 31, which is disposed at the top and bottom of the door 1. Slide plates 32 are slidably connected to both sides of the inner cavity of the limiting shell 31. A guide rod 33 is fixedly connected to the outer side of the slide plate 32. A movable plate 34 is fixedly connected to the side of the guide rod 33 away from the slide plate 32 through to the outside of the limiting shell 31. Two sealing strips 35 are fixedly connected to the inner side of the movable plate 34. Upper and lower sealing strips 36 are fixedly connected to the top and bottom of the inner side of the movable plate 34.

[0027] refer to Figure 1 The door (1) includes a door frame (101), and door panels (102) are movably connected to both sides of the front of the door frame (101). A door glass (103) is movably installed on the front of the door panel (102), and a door connector (104) is provided on the outer side of the door panel (102).

[0028] As a technical optimization of this utility model, by setting a door 1, the door of the vehicle body can be sealed. The user fixes the door frame 101 to the car door, then closes the door panel 102 to seal the space inside the door frame 101. Then, the door panel 102 is made transparent through the door glass 103, which makes it convenient for passengers to observe the exterior of the car.

[0029] refer to Figure 2 The door limiter (2) includes a positioning shell (21), which is fixedly connected to the top and bottom of the front of the door frame (101). The top and bottom of the door panel (102) are both fixedly connected to a connecting rod (22), and a fixed bearing (23) is fixedly connected to the surface of the connecting rod (22). The surface of the outer ring of the fixed bearing (23) is fixedly connected to the inside of the upper and lower sealing strips (36).

[0030] As a technical optimization of this utility model, by setting a door limiter 2, one end of the door panel 102 can be limited. The user fixes the connecting rod 22 to the top and bottom of the door panel 102, and then inserts the fixed bearing 23 on the connecting rod 22 into the interior of the positioning shell 21. The positioning shell 21 limits the fixed bearing 23, preventing the fixed bearing 23 from only moving left and right. The fixed bearing 23 limits one side of the door panel 102 through the connecting rod 22, preventing one side of the door panel 102 from moving back and forth when it is opened.

[0031] refer to Figure 3 The top and bottom of the guide rod 33 are fixedly connected with a reinforcing plate 4, and the side of the reinforcing plate 4 closest to the slide plate 32 is fixedly connected to the slide plate 32.

[0032] As a technical optimization of this utility model, by setting the reinforcing plate 4, the connection area between the guide rod 33 and the slide plate 32 can be increased, preventing the guide rod 33 and the slide plate 32 from shaking.

[0033] refer to Figure 3 Guide blocks 5 are fixedly connected to the top and bottom of the movable plate 34, and guide grooves 6 are opened at the top and bottom of the inner wall of the limiting shell 31. The guide grooves 6 are slidably connected to the guide blocks 5.

[0034] As a technical optimization of this utility model, by setting guide block 5 and guide groove 6, the moving plate 34 can be guided to prevent the moving plate 34 from deviating during movement.

[0035] refer to Figure 3 Both sides of the limiting shell 31 are provided with through holes 7, and the interior of the through holes 7 is slidably connected to the surface of the guide rod 33.

[0036] As a technical optimization of this utility model, by setting through hole 7, the guide rod 33 can be guided to prevent the guide rod 33 from shaking when moving.

[0037] The working principle and usage process of this utility model are as follows: In use, the user drives the bus's door opening device, which pulls the door connector 104 forward. The door connector 104 moves the outer side of the door panel 102 forward, causing the inner sides of the door panel 102 to move away from each other, opening the door panel 102. The door panel 102, through the connecting rod 22, drives the fixed bearing 23 to move outward within the positioning housing 21. The fixed bearing 23 drives the upper and lower sealing strips 36 to move inward, which in turn drives the moving plate 34 to move outward. The moving plate 34 then drives the guide rod 33 to move outward, simultaneously moving the two side sealing strips 35 outward. The guide rod 33 drives the sliding plate 32 to move outward within the limiting housing 31, allowing passengers to disembark from the door. After passengers disembark, the user drives the bus's door closing device, which moves the door panel back... The door connector 104 is pushed, causing the outer side of the door panel 102 to move towards the back, bringing the inner sides of the door panel 102 closer together to close the door panel 102. The door panel 102, through the connecting rod 22, drives the fixed bearing 23 to move inward inside the positioning housing 21. The fixed bearing 23 drives the upper and lower sealing strips 36 to move inward, which in turn drives the moving plate 34 to move inward. The moving plate 34 drives the guide rod 33 to move inward, and simultaneously drives the two side sealing strips 35 to move inward. The guide rod 33 drives the sliding plate 32 to move inward in the limiting housing 31, so that the upper and lower sealing strips 36 seal the gaps at the top and bottom of the door panel 102 and the door frame 101, and the two side sealing strips 35 seal the gaps on both sides of the door panel 102 and the door frame 101, thereby improving the sealing effect.

[0038] In summary, the sealing mechanism of the new energy bus sliding door air duct, by setting the sealing mechanism 3, can seal the gap between the door panel 102 and the door frame 101. During use, no gap will be generated between the door and the body door panel frame, preventing the air blown out by the air conditioner from leaking from the gap between the door and the body door panel frame, which can improve the sealing effect and thus ensure a large amount of air conditioning energy.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy bus plug door air duct sealing mechanism, characterized in that, Include: The door (1); The door stop (2) is arranged at the top and bottom of the door (1); The sealing mechanism (3) comprises a limiting shell (31), the limiting shell (31) is arranged at the top and bottom of the door (1), the two sides of the inner cavity of the limiting shell (31) are slidably connected with the sliding plate (32), the outer side of the sliding plate (32) is fixedly connected with the guide rod (33), the side of the guide rod (33) away from the sliding plate (32) is fixedly connected with the moving plate (34) penetrating to the outside of the limiting shell (31), the inner side of the moving plate (34) is fixedly connected with two side sealing strips (35), the top and bottom of the inner side of the moving plate (34) are fixedly connected with upper and lower sealing strips (36).

2. The sealing mechanism of the air duct of the plug door of the new energy bus, according to claim 1, characterized in that: The door (1) comprises a door frame (101), the two sides of the front of the door frame (101) are movably connected with a door plate (102), the front of the door plate (102) is movably mounted with a door glass (103), and the outer side of the door plate (102) is provided with a door connector (104).

3. The sealing mechanism of the air duct of the plug door of the new energy bus, according to claim 2, characterized in that: The door stop (2) comprises a positioning shell (21), the positioning shell (21) is fixedly connected to the top and bottom of the front of the door frame (101), the top and bottom of the door plate (102) are fixedly connected with a connecting rod (22), the surface of the connecting rod (22) is fixedly connected with a fixed bearing (23), and the surface of the outer ring of the fixed bearing (23) is fixedly connected with the inner part of the upper and lower sealing strips (36).

4. The sealing mechanism of the air duct of the plug door of the new energy bus, according to claim 3, characterized in that: The top and bottom of the guide rod (33) are fixedly connected with a reinforcing plate (4), and the side close to the sliding plate (32) of the reinforcing plate (4) is fixedly connected with the sliding plate (32).

5. The sealing mechanism of the air duct of the plug door of the new energy bus, according to claim 4, characterized in that: The top and bottom of the moving plate (34) are fixedly connected with a guide block (5), the top and bottom of the inner wall of the limiting shell (31) are provided with a guide groove (6), and the guide groove (6) is slidably connected with the guide block (5).

6. The sealing mechanism of the air duct of the plug door of the new energy bus, according to claim 5, characterized in that: The two sides of the limiting shell (31) are provided with a through hole (7), and the inner part of the through hole (7) is slidably connected with the surface of the guide rod (33).

Citation Information

Patent Citations

  • Passenger car sliding plug door air duct sealing mechanism

    CN220031667U