Sleeping berth headrest plate adjusting device
By designing a U-shaped groove and guide hole structure on the headrest board of the sleeper berth, combined with support tubes and motor drive, the problem of abnormal noise in traditional electric sleeper berths on bumpy roads has been solved, improving passenger comfort and safety, and simplifying the maintenance and cleaning process.
Patent Information
- Application Number
- CN202520859583.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Traditional electric sleeper berths make noise when the rollers come into direct contact with the headrest on bumpy roads, affecting passenger comfort and safety, and are also inconvenient to maintain.
A sleeper headrest adjustment device is designed, which adopts a U-shaped slide and guide hole structure, combined with a support tube and motor drive, to increase the fixing and buffering functions. The device prevents accidental sliding through a pin and locking mechanism, and realizes flexible adjustment and precise positioning of the headrest.
Reduces noise, improves passenger comfort and safety, facilitates maintenance and cleaning, adapts to different lying positions, provides appropriate support, prevents accidental slippage, and keeps the sleeper berth clean.
Smart Images
Figure CN223736030U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sleeper technology, and in particular relates to a sleeper headrest adjustment device. Background Technology
[0002] With the development of the times, people have increasingly higher requirements for the comfort of electric sleeper berths, and the comfort experience of electric sleeper berths is receiving more and more attention from customers. However, structural designs that reduce abnormal noise in electric sleeper berths have not been widely adopted. Traditional electric sleeper berths adjust the berth's tilting angle by having a motor drive the support shaft rollers to slide upwards. However, because the rollers are in direct contact with the berth's headrest board, and there is no fixing or cushioning between the two, abnormal noises frequently occur when the sleeper berth travels over bumpy roads, reducing the passenger's experience and comfort. Summary of the Invention
[0003] The purpose of this invention is to provide a sleeper headrest adjustment device that is comfortable to use, reduces abnormal noise, prevents accidental slippage, improves safety, is easy to maintain and clean, and is easy to disassemble.
[0004] The purpose of this utility model is to solve the following problem:
[0005] A sleeper berth headrest adjustment device includes a sleeper body, a headrest movably connected to one end of the sleeper body, and a headrest height adjustment mechanism. The headrest height adjustment mechanism includes a support tube and a U-shaped groove fixed to the lower surface of the headrest and arranged along the length of the sleeper body. A strip-shaped guide hole is correspondingly provided on the side wall of the U-shaped groove along the length of the U-shaped groove. The upper end of the support tube is hinged to a roller or bearing by a pin. The end of the pin slides in the strip-shaped guide hole on the side wall of the U-shaped groove. The lower end of the support tube is hinged to the sleeper frame and is driven by a motor to rotate to adjust the rotation angle of the headrest.
[0006] As a further optimization of the above technical solution, the headrest plate is embedded with a four-pronged nut, and the U-shaped slide is fixed to the headrest plate by passing an internal hex bolt through the mounting hole on the U-shaped slide.
[0007] As a further optimization of the above technical solution, the two sidewalls of the U-shaped chute are one side arm high and the other side arm low, and the strip guide hole is set on the sidewall of the U-shaped chute with the side arm high.
[0008] As a further optimization of the above technical solution, two U-shaped slides are symmetrically arranged, with the lower sidewalls of the two U-shaped slides being arranged relatively close to each other.
[0009] As a further optimization of the above technical solution, the pin is a stepped bolt, which passes through the strip guide hole on the side wall of the U-shaped slide in sequence and is tightly connected to the roller with a non-metallic insert hexagonal lock nut to provide precise positioning of the roller.
[0010] As a further optimization of the above technical solution, the non-metallic insert hexagonal locking nut does not rub against the side wall of the U-shaped groove on one side.
[0011] As a further optimization of the above technical solution, the U-shaped groove and the strip-shaped guide hole thereon are formed by stamping.
[0012] As a further optimization of the above technical solution, a locking structure is provided between the U-shaped groove and the upper end of the support tube.
[0013] The advantages of this invention compared to the prior art are:
[0014] 1. Enhanced comfort and conforms to the human body curves: When passengers are lying down, the tilt of the headrest can be adjusted via the sliding groove to better conform to the curves of the head and neck, reduce pressure, relieve fatigue, and improve the quality of sleep and rest; Adaptable to different lying positions: When passengers are lying on their side, back, or other different lying positions, the tilt of the headrest can be adjusted via the sliding groove to provide appropriate support and maintain comfort.
[0015] 2. Solve the problem of abnormal noise when the original sleeper berths pass through bumpy sections: Add a fixed U-shaped sliding groove structure to the original sleeper berth headrest board, which adds fixation and cushioning function to the rollers or bearings. This solves the problem of abnormal noise caused by the impact and bumps between the rollers or bearings and the headrest board when the sleeper berths pass through bumpy sections, improves the quality of the sleeper berth, and thus improves passenger comfort.
[0016] 3. Enhanced safety and optimized collision protection: In the event of a collision, the headrest panel can be automatically or manually adjusted to a suitable position via a sliding track, providing effective support for the passenger's head and neck and reducing injury. 4. Prevent accidental sliding: The U-shaped slide is equipped with a locking mechanism that locks the headrest after it is adjusted to the correct position, preventing accidental sliding due to vibration or shaking during use and ensuring passenger safety. 5. Easy to maintain and clean, and easy to disassemble: The headrest board has a sliding groove at the connection point with the berth, making disassembly easier. During maintenance, the headrest board can be easily removed for inspection, repair, or replacement of parts. Thorough cleaning: After removing the headrest board, the head area of the berth can be thoroughly cleaned to remove dust, stains, etc., keeping the berth clean and hygienic. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1 :
[0019] A sleeper berth headrest adjustment device includes a sleeper body, a headrest 10 movably connected to one end of the sleeper body, and a headrest height adjustment mechanism. The headrest height adjustment mechanism includes a support tube 18 and a U-shaped slide 12 fixed on the lower surface of the headrest 10 and arranged along the length of the sleeper body. A strip-shaped guide hole 15 is correspondingly arranged on the side wall of the U-shaped slide 12 along the length of the U-shaped slide 12. The upper end of the support tube 18 is hinged to a roller 16 or a bearing through a pin 17. The end of the pin 17 slides in the strip-shaped guide hole 15 on the side wall of the U-shaped slide 12. The lower end of the support tube 18 is hinged to the sleeper frame and is driven by a motor to rotate to adjust the rotation angle of the headrest 10.
[0020] As a further optimization of the above technical solution, the headrest plate 10 is embedded with a four-pronged nut, and the U-shaped slide groove 12 is fixed on the headrest plate 10 by passing an internal hex bolt 11 through the mounting hole on the U-shaped slide groove 12.
[0021] As a further optimization of the above technical solution, the two side walls of the U-shaped slide 12 are one side arm 14 high and one side arm 13 low, and the strip guide hole 15 is provided on the side wall of the U-shaped slide 12 with the side arm 14 high.
[0022] As a further optimization of the above technical solution, two U-shaped slides 12 are symmetrically arranged, and the lower sidewalls 13 of the two U-shaped slides 12 are arranged relatively close to each other.
[0023] As a further optimization of the above technical solution, the pin 17 is a stepped bolt, which passes through the strip guide hole 15 on the side wall of the U-shaped groove 12, the roller 16 or the bearing non-metallic insert hexagonal lock nut for tight connection, so as to provide precise positioning of the roller 16.
[0024] As a further optimization of the above technical solution, the non-metallic insert hexagonal locking nut does not rub against the side wall of the U-shaped groove 12 of the side arm 13.
[0025] As a further optimization of the above technical solution, the U-shaped groove 12 and the strip-shaped guide hole 15 thereon are formed by stamping.
[0026] As a further optimization of the above technical solution, a locking structure is provided between the U-shaped slide 12 and the upper end of the support tube 18. For example, a friction plate is provided between the U-shaped slide 12 and the roller or bearing for locking, or a pin and a lock hole are provided on the U-shaped slide 12 and the support tube 18 for locking. The end of the support tube 18 can be fixed at any position of the U-shaped slide 12 with the angle adjusted, which plays a positive role in reducing the impact and bumps between the U-shaped slide 12 and the roller or bearing.
[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that simple substitutions or modifications can still be made to the technical solutions or technical features described in the foregoing embodiments, and these simple substitutions or modifications do not cause the essence of the corresponding technical solutions to deviate from the spirit and substance of the technical solutions of the embodiments of this utility model, and are still within the protection scope of this utility model.
Claims
1. A bed headrest board adjusting device, comprising a bed body, a headrest board movably connected to one end of the bed body, and a headrest height adjusting mechanism, characterized in that: The headrest height adjusting mechanism comprises a support tube, a U-shaped sliding groove fixed on the lower surface of the headrest plate and arranged along the length direction of the bunk body, strip-shaped guide holes arranged on the side walls of the U-shaped sliding groove along the length direction of the U-shaped sliding groove, a roller or bearing hinged to the upper end of the support tube through a pin shaft, the end of the pin shaft sliding in the strip-shaped guide hole on the side wall of the U-shaped sliding groove, and the lower end of the support tube hinged to the bunk bracket and driven to rotate by a motor to adjust the rotating angle of the headrest plate.
2. A bed headrest board adjustment device according to claim 1, characterized in that: The four-jaw nut is embedded in the headrest plate, and a hexagonal bolt is used to pass through the mounting hole on the U-shaped sliding groove to fix the U-shaped sliding groove on the headrest plate.
3. A bunk headrest board adjustment device according to claim 1, characterized in that: The two side walls of the U-shaped sliding groove are of different heights, i.e., one side wall is high and the other side wall is low, and the strip-shaped guide holes are arranged on the side wall of the U-shaped sliding groove with the high side wall.
4. A bed headrest board adjustment device according to claim 3, wherein: The two U-shaped sliding grooves are symmetrically arranged, and the low side walls of the two U-shaped sliding grooves are arranged close to each other.
5. A bed headrest panel adjustment device as claimed in claim 3 or 4, wherein: The pin shaft is a stepped bolt, which is sequentially connected to the strip-shaped guide hole on the side wall of the U-shaped sliding groove, the roller or bearing, and a non-metallic embedded hexagonal locking nut to provide accurate positioning of the roller.
6. A bed headrest board adjustment device according to claim 5, wherein: The non-metallic embedded hexagonal locking nut does not rub against the side wall of the U-shaped sliding groove with the low side wall.
7. A bed headrest board adjustment device as claimed in claim 1, wherein: The U-shaped sliding groove and the strip-shaped guide holes thereon are stamped and formed.
8. A bed headrest board adjustment device as claimed in claim 1, wherein: A locking structure is arranged between the U-shaped sliding groove and the upper end of the support tube.