Business partition door of high-speed motor train unit
By using an aluminum alloy door frame and a universal bearing design, the problems of complex manufacturing of commercial partition doors and exposed lock tongues have been solved, achieving efficient and low-cost assembly and comfortable use.
Patent Information
- Application Number
- CN202520127648.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The existing business partition doors are complex to manufacture, costly, and have exposed latches that can easily scratch passengers.
The door frame is made of aluminum alloy, and the door panels are assembled by disassembly and assembly. Universal bearings are used instead of traditional pivot sleeves, combined with magnetic lock tongue and rubber pad cushioning and shock absorption design.
It achieves efficient and low-cost assembly, avoids scratches caused by exposed locking tongue, reduces production costs, and improves user comfort.
Smart Images

Figure CN223821666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rail transit equipment, and in particular to a business compartment door for high-speed trains. Background Technology
[0002] High-speed trains refer to vehicles equipped with power units in rail transit systems, including two main categories: locomotives and power carriages. Business class carriages, also known as premium class carriages, are passenger carriages with large seating space and high comfort. Business class partition doors are installed on the end wall between first class and business class seats to separate the two areas. They are exquisite and beautiful in appearance, reflecting the high-end nature of business class carriages, and are energy-saving and environmentally friendly.
[0003] Existing partition doors mostly use aluminum alloy welded frames, and the surface needs to be glued with aluminum plates or veneers, or painted as a whole. The manufacturing process is complicated and costly. Utility Model Content
[0004] To address the issues mentioned above regarding existing partition doors that often use welded aluminum alloy frames, require additional aluminum plates or veneers, or involve overall painting, resulting in numerous complex manufacturing processes and high costs, this utility model provides a business partition door for high-speed trains.
[0005] This utility model provides a business compartment door for high-speed trains, employing the following technical solution:
[0006] A high-speed train business compartment door includes a door leaf and a door frame. The door leaf is located inside the door frame. The door leaf includes a door leaf lock side beam and a door leaf pivot side beam. An upper door leaf beam is connected to the upper end of the door leaf lock side beam and the door leaf pivot side beam. A lower door leaf beam is connected to the lower end of the door leaf lock side beam and the door leaf pivot side beam. A middle door leaf crossbeam is connected to the end of the door leaf lock side beam and the door leaf pivot side beam near the lower door leaf beam. A ventilator is provided between the middle door leaf crossbeam and the lower door leaf beam. Connecting rods are provided inside the middle door leaf crossbeam, the upper door leaf beam, and the lower door leaf beam. A disassembly and assembly structure is provided between the door leaf lock side beam and the door leaf pivot side beam and the connecting rods. A groove is provided on the inner side of the door leaf lock side beam and the door leaf pivot side beam. A glass strip is installed in the groove, and a glass body is snapped into the inside of the glass strip.
[0007] The door frame includes a door lock frame and a pivot frame. The upper and lower ends of the pivot frame and the door leaf pivot side beam are respectively connected to an upper pivot and a lower pivot. The upper end of the door lock frame and the pivot frame is connected to an upper door frame. The lower end of the door lock frame and the pivot frame is connected to a threshold.
[0008] By adopting the above technical solution, the middle crossbeam, upper side beam, lower side beam, door lock side beam, and door hinge side beam of the door leaf are spliced together through a disassembly and assembly structure. At the same time, the glass body is clamped inside the glass sealant strip. A door leaf can be completed through simple assembly, which has high production efficiency and low cost. The door hinge side beam is connected to the hinge door frame through the upper hinge and universal bearing, which facilitates the opening and closing of the door leaf.
[0009] Optionally, the disassembly and assembly structure includes a slot, which is located on the side of the door lock edge beam and the door hinge edge beam that are close to each other. A first pull block is provided in the slot on the door lock edge beam, and a second pull block is provided in the slot on the door hinge edge beam. The first pull block has a through hole inside, and the left end of the connecting rod passes through the through hole and is screwed with a locking nut. The second pull block has a screw hole inside, and the right end of the connecting rod is threaded to the second pull block.
[0010] By adopting the above technical solution, the left end of the connecting rod passes through the first pull block and is tightened with a locking nut, and the right end of the connecting rod is threaded to the second pull block. Then, the first and second pull blocks are connected to the door lock side beam and the door pivot side beam. A set of door panels can be completed through simple assembly, which has high production efficiency and low cost.
[0011] Optionally, both the first pull block and the second pull block have a step on the side away from the center of the connecting rod, and the step engages with the slot.
[0012] By adopting the above technical solution, it is convenient to quickly engage the first pull block and the second pull block on the inner side of the door lock side beam and the door hinge side beam.
[0013] Optionally, the middle crossbeam, the upper side beam, and the lower side beam of the door leaf are provided with concave dovetails on both sides, and the door lock side beam and the door pivot side beam are provided with convex dovetails on the side near the glass body. The concave dovetails and convex dovetails are engaged and connected.
[0014] By adopting the above technical solution, it can be ensured that the surface of the door leaf's crossbeam and edge beam are flush, without any misalignment.
[0015] Optionally, a door lock patch plate is installed on the side of the glass body near the door lock edge beam, and a door lock body is provided between the door lock patch plate and the door lock edge beam. A handle is installed on the side of the door lock body away from the door lock patch plate.
[0016] By adopting the above technical solution, the door lock body realizes the door locking function, and the handle makes it convenient for users to pull the handle to open the door.
[0017] Optionally, the door lock body is provided with a magnetic latch inside.
[0018] By adopting the above technical solution, when the door is opened, the magnetic latch is retracted into the lock body; when the door is closed, the magnetic latch extends out of the lock body and latches into the door frame lock plate to lock the door.
[0019] Optionally, the ventilator includes several tie rods, which are connected between the middle crossbeam and the lower edge beam of the door leaf. The outer wall of each tie rod is connected with blades at equal intervals from top to bottom. A rubber pad is provided between adjacent blades, and the rubber pad is sleeved on the outside of the tie rod. A fixing nut is screwed to the upper and lower ends of the outer side of the tie rod.
[0020] By adopting the above technical solution, the rubber pad plays a buffering and shock-absorbing role, and no vibration will be generated during the opening and closing of the door, thus eliminating the abnormal noise of the ventilator when opening and closing the door.
[0021] Optionally, the upper and lower ends of the pivot door frame near the pivot side beam of the door leaf are respectively provided with an upper shaft sleeve fixing seat and a lower shaft sleeve fixing seat. The upper shaft sleeve fixing seat and the lower shaft sleeve fixing seat are provided with reserved grooves on their respective sides. Universal bearings are provided inside the reserved grooves at the upper and lower ends. The upper pivot is connected to the upper shaft sleeve fixing seat through the upper universal bearing, and the lower pivot is connected to the lower shaft sleeve fixing seat through the lower universal bearing.
[0022] By adopting the above technical solution and replacing the pivot sleeve with a universal bearing, this structure can rotate flexibly, allowing the door pivot to automatically align itself, keeping the upper and lower pivots coaxial, making it more wear-resistant and durable, and preventing the risk of sagging at the front end of the door.
[0023] In summary, this utility model has at least one of the following beneficial effects:
[0024] The door frame is formed by the cooperation of the middle crossbeam, upper side beam, door lock side beam, lower side beam, door pivot side beam, connecting rod, first pull block, locking nut and second pull block, and the door lock side beam and door pivot side beam are connected by the connecting rod. The door frame is made of aluminum alloy. A set of door panels can be completed by simple assembly, which is highly efficient and low cost.
[0025] By using a combination of a hinged door frame, door leaf hinged side beam, upper hinge, universal bearing, lower hinge, upper shaft sleeve fixing seat, and lower shaft sleeve fixing seat, the traditional hinge and hinge sleeve mating structure at the door leaf hinge is eliminated. The hinge sleeve is replaced with a universal bearing. This structure allows for flexible rotation, enabling the door hinge to automatically align itself and keep the upper and lower hinges coaxial. Furthermore, the bearing is more wear-resistant and durable than the traditional nylon hinge sleeve, and the fit clearance with the hinge is smaller, preventing the risk of the front end of the door sagging.
[0026] When the door is opened, the magnetic latch retracts into the lock body. When the door is closed, the magnetic latch extends out of the lock body and latches into the door frame lock plate to lock the door. This solves the problem that the latch is exposed when the partition door of the existing bus is opened, which may easily scratch passengers.
[0027] The combination of blades, pull rods, and rubber pads, with the blades separated by rubber pads and the blades tightly attached to the rubber pads, allows the blades to buffer and absorb shock, preventing vibration during door opening and closing and avoiding abnormal noise from the ventilator. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0030] Figure 2 This is a top sectional view of the door leaf structure of this utility model;
[0031] Figure 3 This is a schematic diagram of the upper rotating shaft structure of this utility model;
[0032] Figure 4 This is a schematic diagram of the lower rotating shaft structure of this utility model;
[0033] Figure 5 This is a schematic diagram of the magnetic locking tongue structure of this utility model;
[0034] Figure 6 This is a side view of the ventilator structure of this utility model;
[0035] Figure 7 This is a schematic diagram of the connection structure between the connecting rod and the first pull block of this utility model;
[0036] Figure 8 This is a schematic diagram of the connection structure between the connecting rod and the second pull block of this utility model;
[0037] Figure 9 This is a schematic diagram of the overlapping structure of the door leaf crossbeam and side beam of this utility model;
[0038] Figure 10 This is a schematic diagram of the connection structure between the glass and the glass adhesive strip of this utility model.
[0039] In the diagram: 1. Door leaf center beam; 2. Door lock frame; 3. Door lock body; 4. Ventilator; 5. Glass body; 6. Upper door frame; 7. Hinge frame; 8. Door leaf upper edge beam; 9. Door leaf and door lock edge beam; 10. Door lock patch plate; 11. Door leaf lower edge beam; 12. Door leaf hinge edge beam; 13. Threshold; 14. Connecting rod; 15. Upper hinge; 16. Universal bearing; 17. Lower hinge; 18. Magnetic latch; 19. Blade; 20. Pull rod; 21. Rubber pad; 22. Upper shaft sleeve fixing seat; 23. Lower shaft sleeve fixing seat; 24. First pull block; 25. Locking nut; 26. Second pull block; 27. Glass sealant strip. Detailed Implementation
[0040] The following is in conjunction with the appendix Figure 1-10 The present invention will be described in further detail below.
[0041] Please refer to the attached diagram in the instruction manual. Figure 1 An embodiment of this utility model provides a business compartment door for high-speed trains, comprising a door leaf and a door frame. The door leaf is located inside the door frame. The door leaf includes a door leaf lock side beam 9 and a door leaf pivot side beam 12. An upper side beam 8 is horizontally connected to the upper end between the door leaf lock side beam 9 and the door leaf pivot side beam 12. A lower side beam 11 is horizontally connected to the lower end between the door leaf lock side beam 9 and the door leaf pivot side beam 12. A middle cross beam 1 is horizontally connected to the end of the door leaf lock side beam 9 and the door leaf pivot side beam 12 near the lower side beam 11. A ventilator 4 is provided between the middle cross beam 1 and the lower side beam 11.
[0042] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 6 The ventilator 4 includes several tie rods 20, which are connected between the middle crossbeam 1 and the lower edge beam 11 of the door leaf. Blades 19 are evenly spaced along the outer wall of each tie rod 20 from top to bottom. Rubber pads 21 are placed between adjacent blades 19 and are movably fitted onto the outside of the tie rod 20. Fixing nuts are screwed to the upper and lower ends of the outer side of the tie rod 20. The rubber pads 21 act as buffers and dampers, preventing vibration during door opening and closing and eliminating abnormal noises from the ventilator 4.
[0043] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 7 and Figure 8The middle crossbeam 1, the upper side beam 8, and the lower side beam 11 of the door leaf are all equipped with connecting rods 14. The door lock side beam 9 and the door pivot side beam 12 are provided with a disassembly and assembly structure between them and the connecting rods 14. The disassembly and assembly structure includes a slot. The slot is opened on the side of the door lock side beam 9 and the door pivot side beam 12 that are close to each other. A first pull block 24 is provided in the slot on the door lock side beam 9, and a second pull block 26 is provided in the slot on the door pivot side beam 12. A through hole is opened inside the first pull block 24. The left end of the connecting rod 14 passes through the through hole and is screwed with a locking nut 25. A screw hole is opened inside the second pull block 26. The right end of the connecting rod 14 is threadedly connected to the second pull block 26. The left end of the connecting rod 14 passes through the first pull block 24 and is tightened by the locking nut 25. The right end of the connecting rod 14 is threaded to the second pull block 26. Then the first pull block 24 and the second pull block 26 are connected to the door leaf lock side beam 9 and the door leaf pivot side beam 12. A set of door leaves can be completed through simple assembly, which has high production efficiency and low cost.
[0044] Please refer to the attached diagram in the instruction manual. Figure 7 , Figure 8 and Figure 9 Both the first pull block 24 and the second pull block 26 have steps on the side away from the center of the connecting rod 14, and the steps engage with the slots. This facilitates the quick engagement of the first pull block 24 and the second pull block 26 onto the inner side of the door leaf lock side beam 9 and the door leaf pivot side beam 12. The middle crossbeam 1, the upper side beam 8, and the lower side beam 11 of the door leaf all have concave dovetails on both sides, while the door leaf lock side beam 9 and the door leaf pivot side beam 12 have convex dovetails on the side near the glass body 5. The concave and convex dovetails engage and connect. This ensures that the crossbeams and side beams of the door leaf are flush with each other, preventing misalignment.
[0045] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 5 and Figure 10 The inner sides of both the door leaf lock side beam 9 and the door leaf pivot side beam 12 are provided with grooves, and glass strips 27 are installed in the grooves. The glass body 5 is snapped into the inside of the glass strips 27. A door lock patch plate 10 is installed on the side of the glass body 5 near the door leaf lock side beam 9. A door lock body 3 is provided between the door lock patch plate 10 and the door leaf lock side beam 9. A handle is installed on the side of the door lock body 3 away from the door lock patch plate 10. The door leaf locking function is realized through the door lock body 3. The handle is designed to make it convenient for users to pull the handle to open the door leaf. A magnetic latch 18 is provided inside the door lock body 3. When the door is open, the magnetic latch 18 is retracted in the lock body. When the door is closed, the magnetic latch 18 extends out of the lock body and latches into the door frame lock plate to lock the door.
[0046] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 3 and Figure 4The door frame includes a door lock frame 2 and a pivot frame 7. The upper and lower ends of the pivot frame 7 and the door leaf pivot side beam 12 are respectively connected to an upper pivot 15 and a lower pivot 17. The upper end of the door lock frame 2 and the pivot frame 7 is connected to an upper door frame 6, and the lower end of the door lock frame 2 and the pivot frame 7 is connected to a threshold 13.
[0047] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 3 and Figure 4 On the side of the pivot door frame 7 near the pivot side beam 12 of the door leaf, there are upper and lower pivot sleeve fixing seats 22 and 23 respectively. Each of the upper and lower pivot sleeve fixing seats 22 and 23 has a pre-reserved groove on its adjacent side. A universal bearing 16 is installed inside both the upper and lower pre-reserved grooves. The upper pivot 15 is connected to the upper pivot sleeve fixing seat 22 via the upper universal bearing 16, and the lower pivot 17 is connected to the lower pivot sleeve fixing seat 23 via the lower universal bearing 16. Replacing the pivot sleeve with a universal bearing 16 allows for flexible rotation, enables the door pivot to automatically align itself, keeps the upper pivot 15 and lower pivot 17 coaxial, is more wear-resistant and durable, and prevents the risk of sagging at the front of the door.
[0048] Working principle: In use, first pass the left end of the connecting rod 14 through the first pull block 24 and tighten the connecting rod 14 with the locking nut 25. Then, thread the right end of the connecting rod 14 to the second pull block 26. Since the first pull block 24 and the second pull block 26 are provided with steps, the first pull block 24 and the second pull block 26 can be engaged in the slots on the inside of the door lock side beam 9 and the door pivot side beam 12. Repeat the above operation to splice the middle cross beam 1, the upper side beam 8 and the lower side beam 11 of the door leaf with the door lock side beam 9 and the door pivot side beam 12. A set of door leaves can be completed through simple assembly, which has high production efficiency and low cost.
[0049] Then, through the cooperation of the upper rotating shaft 15 and the upper shaft sleeve fixing seat 22, and the cooperation of the lower rotating shaft 17 and the lower shaft sleeve fixing seat 23, the rotating shaft door frame 7 and the door leaf rotating shaft side beam 12 are connected. The upper rotating shaft 15 and the lower rotating shaft 17 of the door leaf cooperate with the universal bearing 16 to rotate, realizing the door leaf opening and closing action, and realizing the door leaf locking function through the door lock body 3.
[0050] When the door is opening and closing, the blades 19 are separated by rubber pads 21, and the upper and lower ends of the pull rod 20 are tightened with fixing nuts, so that the blades 19 and rubber pads 21 are tightly attached together. The blades 19 play a buffering and shock-absorbing role, so no vibration will occur during the opening and closing of the door, and abnormal noise will be prevented.
[0051] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A business class compartment door for high-speed trains, comprising a door leaf and a door frame, wherein the door leaf is located inside the door frame, characterized in that: The door leaf includes a door leaf lock side beam (9) and a door leaf pivot side beam (12). The upper end of the door leaf lock side beam (9) and the door leaf pivot side beam (12) is connected to the upper side beam (8) of the door leaf. The lower end of the door leaf lock side beam (9) and the door leaf pivot side beam (12) is connected to the lower side beam (11) of the door leaf. The end of the door leaf lock side beam (9) and the door leaf pivot side beam (12) near the lower side beam (11) of the door leaf is connected to the middle horizontal beam (1) of the door leaf. The middle horizontal beam (1) and the lower side beam of the door leaf A ventilator (4) is provided between (11). A connecting rod (14) is provided inside the middle crossbeam (1), the upper side beam (8) and the lower side beam (11) of the door leaf. A disassembly and assembly structure is provided between the door leaf lock side beam (9) and the door leaf pivot side beam (12) and the connecting rod (14). A groove is provided on the inner side of the door leaf lock side beam (9) and the door leaf pivot side beam (12). A glass sealant strip (27) is installed in the groove. A glass body (5) is snapped into the inside of the glass sealant strip (27). The door frame includes a door lock frame (2) and a pivot frame (7). The upper and lower ends of the pivot frame (7) and the pivot side beam (12) of the door leaf are respectively connected to an upper pivot (15) and a lower pivot (17). The upper end of the door lock frame (2) and the pivot frame (7) is connected to an upper door frame (6). The lower end of the door lock frame (2) and the pivot frame (7) is connected to a threshold (13).
2. The high-speed train business compartment door according to claim 1, characterized in that: The disassembly and assembly structure includes a slot, which is located on the side of the door lock side beam (9) and the door pivot side beam (12) that are close to each other. A first pull block (24) is provided in the slot on the door lock side beam (9), and a second pull block (26) is provided in the slot on the door pivot side beam (12). The first pull block (24) has a through hole inside, and the left end of the connecting rod (14) passes through the through hole and is screwed with a locking nut (25). The second pull block (26) has a screw hole inside, and the right end of the connecting rod (14) is threaded to the second pull block (26).
3. A high-speed train business compartment door according to claim 2, characterized in that: Both the first pull block (24) and the second pull block (26) have steps on the side away from the center of the connecting rod (14), and the steps are engaged with the slots.
4. The high-speed train business compartment door according to claim 1, characterized in that: The middle crossbeam (1), the upper side beam (8), and the lower side beam (11) of the door leaf are all provided with concave dovetails on both sides. The door lock side beam (9) and the door pivot side beam (12) are all provided with convex dovetails on the side near the glass body (5). The concave dovetails and convex dovetails are engaged and connected.
5. A high-speed train business compartment door according to claim 1, characterized in that: A door lock patch plate (10) is installed on the side of the glass body (5) near the door lock side beam (9). A door lock body (3) is provided between the door lock patch plate (10) and the door lock side beam (9). A handle is installed on the side of the door lock body (3) away from the door lock patch plate (10).
6. A high-speed train business compartment door according to claim 5, characterized in that: The door lock body (3) is equipped with a magnetic latch (18).
7. A high-speed train business compartment door according to claim 1, characterized in that: The ventilator (4) includes several pull rods (20), which are connected between the middle crossbeam (1) of the door leaf and the lower side beam (11) of the door leaf. The outer wall of the pull rod (20) is connected with blades (19) at equal intervals from top to bottom. A rubber pad (21) is provided between adjacent blades (19), and the rubber pad (21) is sleeved on the outside of the pull rod (20). The upper and lower ends of the outer side of the pull rod (20) are screwed with fixing nuts.
8. A business class compartment door for high-speed trains according to claim 1, characterized in that: The upper and lower ends of the pivot door frame (7) near the pivot side beam (12) of the door leaf are respectively provided with an upper shaft sleeve fixing seat (22) and a lower shaft sleeve fixing seat (23). The upper shaft sleeve fixing seat (22) and the lower shaft sleeve fixing seat (23) are provided with reserved grooves on the side close to each other. The upper reserved groove and the lower reserved groove are both provided with universal bearings (16). The upper pivot (15) is connected to the upper shaft sleeve fixing seat (22) through the upper universal bearing (16), and the lower pivot (17) is connected to the lower shaft sleeve fixing seat (23) through the lower universal bearing (16).