Manual adjustment waist rest structure for railway sleeper
By designing a manually adjustable lumbar support structure on railway sleeper cars, and using a two-way ratchet mechanism and limit springs to achieve 0-15 degree adjustment, the problem of the inability to adjust the traditional lumbar support structure has been solved, improving riding comfort and stability.
Patent Information
- Application Number
- CN202521018204.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-05-22
AI Technical Summary
Traditional railway sleeper cars have lumbar support structures that cannot be adjusted according to individual passenger needs. The adjustment range is limited and the operation is complicated, making it difficult to meet the comfort requirements of different groups of people.
A manually adjustable lumbar support structure for railway sleeper cars was designed, which includes a lumbar support body and an adjustment and locking mechanism. It adopts a two-way ratchet mechanism and a limit spring to achieve arbitrary adjustment within the range of 0-15 degrees. Combined with the ergonomically designed backrest curve, the lumbar support angle can be precisely adjusted and locked through manual operation.
It achieves a wide range of adjustment capabilities and a simple and easy-to-use operation, improving riding comfort, meeting the personalized needs of different groups of people, and ensuring the stability of the lumbar support through the locking function of the two-way ratchet mechanism.
Smart Images
Figure CN223878016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a manual adjusting waist rest structure for railway sleeping car belongs to long -distance train equipment technical field. BACKGROUND
[0002] With the rapid development of modern traffic technology, railway sleeping car as one of the main traffic modes of long -distance travel, its ride comfort is valued by passengers increasingly. As an important part of sleeping car, waist rest is generally fixedly installed on the partition above the lower berth deck, and its comfort directly influences the ride experience of passengers. The traditional waist rest structure often adopts fixed design, cannot be adjusted according to the individual needs of passengers, thereby being difficult to meet the requirements of different people on comfort. In recent years, although some waist rest structures have certain adjusting function, the adjusting range is limited, operation is complex, and the stability is insufficient, so it is difficult to achieve ideal effect in practical application SUMMARY
[0003] The utility model aims at providing a manual adjusting waist rest structure for railway sleeping car, which has a large adjusting range, is simple to operate, has good stability, improves the ride comfort of railway sleeping car, can be adjusted randomly within 0-15 degrees, meets the requirements of different people on comfort, and solves the above technical problems existing in the prior art.
[0004] The technical scheme of the utility model is as follows:
[0005] A manual adjusting waist rest structure for railway sleeping car is installed on the partition above the lower berth deck, and comprises a waist rest body and an adjusting and locking mechanism. The waist rest body comprises a waist rest frame and a backrest, and the backrest is arranged on the front face of the waist rest frame. The adjusting and locking mechanism comprises a bidirectional ratchet mechanism, a linkage folding leaf and a limiting spring. The linkage folding leaf comprises a fixed leaf and a rotating leaf, and the fixed leaf and the rotating leaf are hinged through a hinge shaft. The fixed leaf is fixed on the partition above the lower berth deck, and the rotating leaf is connected with the back face of the waist rest frame. The fixed leaf and the waist rest frame are connected with the bidirectional ratchet mechanism through a folding leaf connecting arm and a waist rest connecting arm respectively, and the limiting spring is arranged between the fixed leaf and the waist rest frame. The waist rest body is moved by hand, and under the action of the bidirectional ratchet mechanism and the linkage folding leaf, the waist rest body rotates along the hinge shaft, the angle of the waist rest body is adjusted, and the passenger can ride comfortably.
[0006] The back face of the waist rest frame is provided with a mounting seat one, the fixed leaf is provided with a mounting seat two, one end of the folding leaf connecting arm and the waist rest connecting arm is connected with the mounting seat two and the mounting seat one respectively, and the other end of the folding leaf connecting arm and the waist rest connecting arm is connected with the bidirectional ratchet mechanism respectively.
[0007] The bidirectional ratchet mechanism is a commonly known ratchet mechanism, which can rotate and lock in two directions.
[0008] The two ends of the limiting spring are arranged on the mounting seat one and the mounting seat two respectively, the limiting spring is used for limiting the maximum angle and the minimum angle of the rotation of the waist rest body, and the waist rest body can be adjusted in the range of 0-15 degrees to meet the comfort requirements of different people.
[0009] The back of the waist rest frame has a space, the bidirectional ratchet mechanism, the linkage folding leaf, the limiting spring, the mounting seat one and the mounting seat two are arranged in the space of the back of the waist rest frame, and the waist rest body is attached to the partition above the lower berth surface when the rotation angle of the waist rest body is 0, and the appearance is kept beautiful.
[0010] The backrest of the waist rest body adopts a design curve in line with ergonomics and can be attached to the waist curve of a human body. By manually lifting the waist rest, the bidirectional ratchet mechanism can be driven to rotate, so that the waist rest body is adjusted in a certain angle range, and the bidirectional ratchet mechanism can lock the position of the waist rest body after the adjustment is completed, to prevent the waist rest body from moving in the use process.
[0011] The utility model has the advantages of large adjustment range, simple operation, good stability, improved riding comfort of a railway sleeper car, and the ability to meet the comfort requirements of different people in the range of 0-15 degrees. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structure schematic view of an embodiment of the utility model;
[0013] Figure 2 It is a structure schematic view of an adjusting and locking mechanism of an embodiment of the utility model;
[0014] Figure 3 It is a structure schematic view of a bidirectional ratchet mechanism of an embodiment of the utility model;
[0015] In the drawing: waist rest body 1, adjusting and locking mechanism 2, bidirectional ratchet mechanism 3, mounting seat one 4, linkage folding leaf 5, limiting spring 6, waist rest frame 7, backrest 8, fixed leaf 9, rotating leaf 10, hinge shaft 11, mounting seat two 12, waist rest connecting arm 13, folding leaf connecting arm 14, pawl 15, spring sheet 16, tooth 17, space 18. DETAILED DESCRIPTION
[0016] The utility model will be further described through examples in combination with the drawings.
[0017] The application discloses a manual adjusting lumbar support structure for a railway sleeper car, which is installed on a partition wall above a lower sleeper surface and comprises a lumbar support body 1 and an adjusting and locking mechanism 2. The lumbar support body 1 comprises a lumbar support frame 7 and a backrest 8, and the backrest 8 is arranged on the front surface of the lumbar support frame 7. The adjusting and locking mechanism 2 comprises a bidirectional ratchet mechanism 3, a linkage folding leaf 5 and a limiting spring 6. The linkage folding leaf 5 comprises a fixed leaf 9 and a rotating leaf 10, and the fixed leaf 9 and the rotating leaf 10 are hinged through a hinge shaft 11. The fixed leaf 9 is fixed on the partition wall above the lower sleeper surface, and the rotating leaf 10 is connected with the back surface of the lumbar support frame 7. The fixed leaf 9 and the lumbar support frame 7 are connected with the bidirectional ratchet mechanism 3 through a folding leaf connecting arm 14 and a lumbar support connecting arm 13 respectively, and the limiting spring 6 is arranged between the fixed leaf 9 and the lumbar support frame 7. The lumbar support body 1 is manually moved, and under the action of the bidirectional ratchet mechanism 3 and the linkage folding leaf 5, the lumbar support body 1 rotates along the hinge shaft 11, the angle of the lumbar support body 1 is adjusted, and the passenger can ride comfortably.
[0018] The back surface of the lumbar support frame 7 is provided with a mounting seat one 4, the fixed leaf 9 is provided with a mounting seat two 12, one end of the folding leaf connecting arm 14 and the lumbar support connecting arm 13 is connected with the mounting seat two 12 and the mounting seat one 4 respectively, and the other end of the folding leaf connecting arm 14 and the lumbar support connecting arm 13 is connected with the bidirectional ratchet mechanism 3 respectively.
[0019] The two ends of the limiting spring 6 are arranged on the mounting seat one 4 and the mounting seat two 12 respectively, the limiting spring 6 is used for limiting the maximum angle and the minimum angle of the rotation of the lumbar support body 1, can be adjusted in the range of 0-15 degrees, and meets the comfort requirements of different people.
[0020] The back of the lumbar support frame 7 has a space 18, the bidirectional ratchet mechanism 3, the linkage folding leaf 5, the limiting spring 6, the mounting seat one 4 and the mounting seat two 12 are arranged in the space 18 of the back of the lumbar support frame 7, and when the rotating angle of the lumbar support body 1 is 0, the lumbar support body 1 is attached to the partition wall above the lower sleeper surface, and the appearance is kept beautiful.
[0021] The backrest 8 of the lumbar support body adopts a design curve conforming to ergonomics and can be attached to the human waist curve. The lumbar support body can be driven to rotate by manually lifting the lumbar support, so that the lumbar support body is adjusted in a certain angle range, and the bidirectional ratchet mechanism 3 can lock the position of the lumbar support body after the adjustment is completed, thereby preventing the lumbar support body from moving in the use process.
[0022] In actual application, passengers can adjust the angle of the lumbar support body by rotating an adjusting handle according to the self needs. When the lumbar support body is lifted, the bidirectional ratchet mechanism 3 is correspondingly rotated, so that the inclination angle of the lumbar support is accurately controlled. Once the ideal comfort is reached, the lumbar support body is fixed at the required position through an internal locking mechanism of the bidirectional ratchet mechanism 3.
[0023] The bidirectional ratchet mechanism 3 is a commonly known ratchet mechanism capable of rotating and locking in two directions. The bidirectional ratchet mechanism 3 used in the embodiment is composed of a lumbar support connecting arm 13, a folding connecting arm 14, pawls 15, spring sheets 16, and a wheel tooth 17. Two pawls 15 are arranged in the wheel tooth 17, the front ends of the two pawls 15 are matched with the wheel tooth 17 respectively, and the spring sheets 16 are arranged between the two pawls 15. The folding connecting arm 14 is connected with the wheel tooth 17, and the lumbar support connecting arm 13 is connected with the rear ends of the two pawls 15. The user manually lifts the lumbar support body, the lumbar support connecting arm 13 and the folding connecting arm 14 are relatively rotated, the pawls 15 and the wheel tooth 17 are relatively rotated, the pawls 15 jump over the tooth grooves along the tooth slopes of the internal tooth of the folding connecting arm 14 by virtue of the elastic supporting action of the spring sheets 16 and the pawls 15, so as to drive the lumbar support body to adjust within a certain angle range, after the adjustment is completed, the pawls 15 are clamped into the tooth grooves of the wheel tooth 17, the reverse movement is prevented, and the position of the lumbar support body is locked, so as to prevent the lumbar support body from moving in the use process.
[0024] The utility model has the advantages of wide range of adjustment, simple operation and excellent stability. The fine adjustment of the bidirectional ratchet mechanism 3 can meet the individual needs of different passengers for the angle of the lumbar support, thereby improving the riding comfort. Meanwhile, the locking function of the bidirectional ratchet mechanism 3 ensures the stability of the lumbar support body in the use process, and avoids the displacement of the lumbar support body caused by the shaking of the train.
Claims
1. A manually adjustable lumbar support structure for a railway sleeper car, characterized by: The invention discloses a wall-mounted waist rest, which is installed on the wall above the lower bunk and comprises a waist rest body (1) and an adjusting and locking mechanism (2). The waist rest body (1) comprises a waist rest frame (7) and a backrest (8), and the backrest (8) is arranged on the front side of the waist rest frame (7). The adjusting and locking mechanism (2) comprises a bidirectional ratchet mechanism (3), a linkage folding leaf (5) and a limiting spring (6). The linkage folding leaf (5) comprises a fixed leaf (9) and a rotating leaf (10), and the fixed leaf (9) and the rotating leaf (10) are hinged by a hinge shaft (11). The fixed leaf (9) is fixed on the wall above the lower bunk, and the rotating leaf (10) is connected with the back of the waist rest frame (7). The fixed leaf (9) and the waist rest frame (7) are connected with the bidirectional ratchet mechanism (3) through a folding leaf connecting arm (14) and a waist rest connecting arm (13) respectively, and the limiting spring (6) is arranged between the fixed leaf (9) and the waist rest frame (7).
2. A manually adjustable lumbar support structure for a railway sleeper car as defined in claim 1, wherein: The back of the waist rest frame (7) is provided with a mounting seat one (4), the fixed leaf (9) is provided with a mounting seat two (12), one end of the folding leaf connecting arm (14) and the waist rest connecting arm (13) is connected with the mounting seat two (12) and the mounting seat one (4) respectively, and the other end of the folding leaf connecting arm (14) and the waist rest connecting arm (13) is connected with the bidirectional ratchet mechanism (3) respectively.
3. A manually adjustable lumbar support structure for a railway sleeper car as defined in claim 1 wherein: Both ends of the limiting spring (6) are arranged on the mounting seat one (4) and the mounting seat two (12) respectively.
4. A manually adjustable lumbar support structure for a railway sleeper car as defined in claim 1, wherein: The waist rest frame (7) has a space (18) on the back, and the bidirectional ratchet mechanism (3), the linkage folding leaf (5), the limiting spring (6), the mounting seat one (4) and the mounting seat two (12) are arranged in the space (18) on the back of the waist rest frame (7).