A noiseless, fully enclosed sliding door for pedestrians and vehicles in level alleys
By using a fully enclosed sliding door design, and utilizing polyurethane sheathing and rollers in conjunction with the slide rails, the safety hazards and noise issues of vehicle and pedestrian doors in level alleys have been resolved, thus improving both safety and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIBEI HUIKE ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-11-01
- Publication Date
- 2026-07-03
AI Technical Summary
The existing doors of the passenger and vehicle vehicles in the flat lane pose safety hazards and noise problems. They cannot be completely closed, and passengers' hands and feet can easily stick out of the vehicle. The shaking of the doors also generates noise, affecting comfort.
A fully enclosed push-pull sliding door was designed, using a polyurethane sheath and rollers in conjunction with the slide rail to ensure that the door does not shake when opening, closing and running, and to achieve safe closure through an opening and closing locking mechanism.
The doors are fully enclosed, preventing passengers from sticking out of the vehicle, reducing noise, and improving safety and ride comfort.
Smart Images
Figure CN224447768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of personnel and vehicles in level lanes, specifically a noiseless, fully enclosed push-pull sliding door for personnel and vehicles in level lanes. Background Technology
[0002] Currently, the doors of the level-alley passenger vehicles are all semi-enclosed double-opening sliding doors, which have the following problems: First, they cannot fully protect the human body, and passengers' hands and feet are easily extended outside the door and scraped by the vehicle, posing a significant safety hazard; Second, the doors of the level-alley passenger vehicles sway up, down, left, and right when in operation, generating a lot of noise and making the comfort of passengers poor. Summary of the Invention
[0003] The purpose of this utility model is to provide a noiseless, fully enclosed sliding door for people and vehicles in flat lanes, which prevents passengers' hands and feet from sticking out of the vehicle and causing danger, and reduces the noise of people and vehicles during operation.
[0004] This utility model includes a car door and a car body, characterized in that it further includes an upper slide rail, an upper guide wheel assembly, a lower support pulley assembly, a lower slide rail, a lower slide rail block, an opening and closing locking mechanism, and a stop shaft; the upper slide rail is made by slotting the lower side of a square tube; the upper guide wheel assembly includes a polyurethane sleeve, a first bearing, and a connecting shaft, the upper end of the connecting shaft is connected to the polyurethane sleeve through the first bearing, and the lower end is welded to the car door; the polyurethane sleeve and the upper slide rail are clearance-fitted; the lower support pulley assembly includes polyurethane rollers, a second bearing, and a fixed shaft, the fixed shaft... A fixed axis secures the polyurethane roller between the inner and outer steel plates of the door; the polyurethane roller is clearance-fitted with the sliding track to support the longitudinal reciprocating movement of the door; the opening and closing locking mechanism is installed in the middle of the door and includes an outer handle, an inner handle, and a locking hook; the inner handle is recessed inside the door, the outer handle protrudes outside the door, and the locking hook is welded to the inner handle on the inner side of the door with a latch at its end; the stop shaft is located on the outside of the car body; rotating the outer or inner handle causes the latch of the locking hook to engage or disengage from the stop shaft, locking and positioning the door.
[0005] The support block supports the square iron of the slide rail and is welded to the carriage.
[0006] As can be seen from the above technical solution, this utility model has the following beneficial effects: 1. The fully enclosed moving door ensures that passengers' feet and hands cannot extend outside the vehicle during operation, thus improving safety. 2. The upper and lower sliding wheels of the door are inlaid with polyurethane rollers, which roll in cooperation with the sliding groove or track, ensuring that the door does not shake when opening and closing or when the vehicle moves in a level lane, greatly reducing the noise of vehicle operation and door opening and closing. Attached Figure Description
[0007] Figure 1 This is the front view of this utility model.
[0008] Figure 2 This is the left view of this utility model.
[0009] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.
[0010] Figure 4 yes Figure 2 Enlarged diagram of part B.
[0011] Figure 5 yes Figure 1 A bottom view of the central locking mechanism.
[0012] In the diagram, 1. door, 2. upper slide rail, 3. upper guide wheel assembly, 4. lower support pulley assembly, 5. lower slide rail, 6. lower slide rail block, 7. opening and closing locking mechanism, 8. stop shaft, 9. carriage;
[0013] 31. Polyurethane sleeve; 32. First bearing; 33. Connecting shaft; 41. Polyurethane roller; 42. Second bearing; 43. Fixed shaft; 71. Outer handle; 72. Inner handle; 73. Locking hook; 74. Bayonet. Detailed Implementation
[0014] 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.
[0015] like Figure 1 , 2 As shown, this utility model includes a car door 1 and a car body 9, and is characterized by further including an upper slide rail 2, an upper guide wheel assembly 3, a lower support pulley assembly 4, a lower slide rail 5, a lower slide rail block 6, an opening and closing locking mechanism 7, and a stop shaft 8.
[0016] The car door 1 is made of square tubing as a frame, with steel plates riveted to the inner side and steel plates welded to the outer side. The interlayer is filled with sound-absorbing cotton, making it a fully enclosed car door.
[0017] Combination Figure 3 As shown, the upper slide rail 2 is made by slotting the lower side of a square tube; the upper guide wheel assembly 3 includes a polyurethane sleeve 31, a first bearing 32, and a connecting shaft 33. The upper end of the connecting shaft 33 is connected to the polyurethane sleeve 31 through the first bearing 32, and the lower end is welded to the car door 1; the polyurethane sleeve 31 is clearance-fitted with the upper slide rail 2, and drives the car door 1 to reciprocate longitudinally within the upper slide rail 2.
[0018] Combination Figure 4 As shown, the lower support pulley assembly 4 includes a polyurethane roller 41, a second bearing 42, and a fixed shaft 43; the fixed shaft 43 fixes the polyurethane roller 41 between the inner and outer steel plates of the door 1. The lower sliding track 5 is made of flat steel. The polyurethane roller 41 and the lower sliding track 5 are clearance-fitted to support the longitudinal reciprocating movement of the door 1, ensuring that the door does not wobble when the vehicle is in motion.
[0019] Combination Figure 1 , Figure 5 As shown, the opening and closing locking mechanism 7 is installed in the middle of the door 1, including an outer handle 71, an inner handle 72, and a locking hook 73. The inner handle 72 is recessed inside the door 1, not obstructing the longitudinal reciprocating movement of the door; the outer handle 71 protrudes outside the door, facilitating opening and closing for personnel outside the vehicle; the locking hook 73 is welded to the inner handle 72 on the inner side of the door, with a latch 74 at its end. The outer side of the passenger compartment 9 contains a retaining shaft 8. Rotating the outer handle 71 or the inner handle 72 causes the latch 74 of the locking hook 73 to engage or disengage from the retaining shaft 8, locking and positioning the door 1.
[0020] The aforementioned slide block 6 supports the square iron of the slide 5 and is welded to the carriage.
Claims
1. A noiseless fully enclosed sliding door for a man-ride of a gangway, comprising a door (1), a car body (9), characterized in that It also includes an upper slide rail (2), an upper guide wheel assembly (3), a lower support pulley assembly (4), a lower slide rail (5), a lower slide rail block (6), an opening and closing locking mechanism (7), and a stop shaft (8); the upper slide rail (2) is made by slotting the lower side of a square tube; the upper guide wheel assembly (3) includes a polyurethane sleeve (31), a first bearing (32), and a connecting shaft (33), the upper end of the connecting shaft (33) is connected to the polyurethane sleeve (31) through the first bearing (32), and the lower end is welded to the car door (1); the polyurethane sleeve (31) is clearance-fitted with the upper slide rail (2); the lower support pulley assembly (4) includes a polyurethane roller (41), a second bearing (42), and a fixed shaft (43); the fixed shaft (43) holds the polyurethane roller (41) The polyurethane roller (41) is fixed between the inner and outer steel plates of the car door (1); the polyurethane roller (41) is fitted with the sliding track (5) with clearance to support the longitudinal reciprocating motion of the car door (1); the opening and closing locking mechanism (7) is installed in the middle of the car door (1) and includes an outer handle (71), an inner handle (72), and a locking hook (73). The inner handle (72) is recessed inside the car door (1), the outer handle (71) protrudes outside the car door, and the locking hook (73) is welded to the inner handle (72) on the inner side of the car door and has a latch (74) at the end; the stop shaft (8) is located outside the car body (9). When the outer handle (71) or the inner handle (72) is rotated, the latch (74) of the locking hook (73) hooks or leaves the stop shaft (8) to lock and position the car door (1).
2. A noiseless fully enclosed sliding mobile door for man-riding in a gangway as claimed in claim 1, wherein: The slide block (6) supports the square iron of the slide (5) and is welded to the carriage (9).