A bunk-lift bed device

Abstract

This invention discloses a sleeper lifting bed device, including a bed body movably mounted on a vehicle body, a flipping assembly symmetrically arranged on both sides of the bed body to assist in flipping the bed body between a use state, a side-standing state, and a folded state, a synchronization rod penetrating the bed body and rotating around it to switch between the use state and the side-standing state, a locking assembly cooperating with the synchronization rod to lock the bed body in the use state or the side-standing state, a support assembly for supporting the bed body in the folded state, limiting blocks fixedly connected to both sides of the bed body, and an unlocking assembly installed on the bed body that cooperates with the support assembly. The two ends of the synchronization rod extend to the outside of the bed body and are fixedly connected to the movable part of the flipping assembly. The bed body of this invention can be flipped to different states according to actual usage needs, offering strong practicality and flexibility. Furthermore, the need to release the lock before flipping the bed body prevents it from tipping over during use, thus improving the stability and safety of the bed body during actual use.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a sleeper lifting bed device. Background Technology

[0002] Most of the sleeper beds used in existing rail transit systems are fixed structures with small gaps between adjacent beds, making it impossible for adults to stand up. When people get up, they are prone to bumping their heads, which limits their actual use.

[0003] If sleeper berths are needed instead of hard seats, the small spacing between them affects passenger comfort. When no passengers are riding or sleeping, the fixed sleeper structure occupies a lot of space inside the vehicle, causing some inconvenience during the journey. When the attendants are changing the sheets and cleaning, they are not only limited by the small space, but also find it inconvenient to flip the bed boards because the beds are fixed. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a sleeper lifting bed device that can be flexibly flipped and is easy to operate.

[0005] Technical Solution: The present invention discloses a sleeper lifting bed device, including a bed body movably mounted on a vehicle body, a flipping assembly symmetrically arranged on both sides of the bed body to assist the bed body in flipping between a use state, a side-standing state, and a folded state, a synchronization rod penetrating the bed body and rotating around it to switch between the use state and the side-standing state, a locking assembly mounted on the bed body and cooperating with the synchronization rod to lock the bed body in the use state or the side-standing state, a support assembly fixedly connected to the vehicle body and located above the flipping assembly to support the bed body in the folded state, limit blocks fixedly connected to both sides of the bed body and cooperating with the support assembly to lock the bed body in the folded state, and an unlocking assembly mounted on the bed body and cooperating with the support assembly to release the lock of the limit blocks. The two ends of the synchronization rod extend to the outside of the bed body and are fixedly connected to the movable part of the flipping assembly.

[0006] Furthermore, two torsion springs are symmetrically installed on the outer periphery of the synchronizing rod to assist the bed in overcoming its own weight and rotating around the synchronizing rod. One end of the torsion spring is fixedly engaged with the synchronizing rod, and the other end is engaged with the bed.

[0007] Furthermore, the tilting assembly includes a fixed frame fixedly connected to the vehicle body, a pin fixedly mounted on the fixed frame, a swing seat rotatably mounted on the outer periphery of the pin, a mounting seat located at the bottom of the swing seat and rotatably connected thereto, a central shaft fixedly connected to the mounting seat, a bushing sleeved around the outer periphery of the central shaft, a compression spring surrounding the bushing and used to assist the bed in switching between a retracted state and a side-standing state, a nut fixedly connected to the central shaft and abutting against the bottom end of the compression spring, and a swing rod fixedly connected to one side of the swing seat. The fixed frame has a notch for the swing rod to rotate, and the bottom of the swing rod extends to the outside of the fixed frame and is fixedly connected to a synchronizing rod.

[0008] Furthermore, the swing seat has a U-shaped groove, and the top of the mounting seat has a protrusion. The protrusion is located in the U-shaped groove and cooperates with it to limit the rotation angle of the swing seat.

[0009] Furthermore, the locking assembly includes a button installed on one side of the bed, a trigger shaft fixedly connected to the side of the button located inside the bed, a dial plate rotatably installed inside the bed and cooperating with the trigger shaft, a trigger rod located on one side of the dial plate and cooperating with it, a mounting plate fixedly installed inside the bed and slidably connected to the trigger rod, a bushing one fixedly connected to the outer periphery of the trigger rod, a return spring one surrounding the outer periphery of the trigger rod and fixedly connected at both ends to the mounting plate and bushing one respectively, a base located on one side of the trigger rod, a torsion spring two installed on the base, a pressure block one cooperating with the torsion spring two, and a pressure block two fixedly connected to the synchronizing rod, wherein the pressure block one abuts against the pressure block two under the action of the torsion spring two.

[0010] Furthermore, a bracket is fixedly connected to the inner side of the bed, and a rotating shaft is installed on the bracket. One end of the dial plate is rotatably connected to the rotating shaft.

[0011] Furthermore, the bearing assembly includes a support fixedly connected to the vehicle body, a pin two fixedly installed in the opening of the support, a torsion spring three sleeved on the outer periphery of the pin two, and a latch rotatably installed on the pin two by the torsion spring three. The latch abuts against the limiting blocks on both sides of the fixed bed body under the force of the torsion spring three.

[0012] Furthermore, a bushing two of an auxiliary torsion spring three is also installed on the outer periphery of the second pin; a buffer rubber strip is installed on the top of the support, and end caps are installed on both ends of the support.

[0013] Furthermore, the unlocking assembly includes two synchronously reversible pull rods, a trigger element for triggering the movement of the pull rods, a protrusion disposed on the outer periphery of the pull rods, and a second reset spring sleeved on the outer periphery of the pull rods and fixedly connected at both ends to the side wall of the bed and the protrusion, respectively. The side wall of the bed has a through hole for the pull rods to extend and touch the latch.

[0014] Furthermore, the trigger includes a cam rotatably connected to the two pull rods, a linkage column mounted on the cam and fixedly connected to the linkage plate, a connecting plate mounted at the bottom of the linkage column and rotatably connected to the bed, a handle mounted on one side of the bed, and a linkage block fixedly connected to the inside of the handle and used to trigger the linkage plate to rotate.

[0015] Beneficial Effects: Compared with the prior art, the present invention has the following significant advantages: Through the arrangement of the flipping component, the synchronizing rod, and the bearing component, the bed of the present invention can be flipped to a use state, a side-standing state, and a folded state. In the use state, the bed is convenient for passengers to lie down. When no passengers are sitting or sleeping, the bed can be flipped to a side-standing state, reducing the space occupied by the bed. When it is necessary to further increase the distance between two adjacent berths, the bed can be flipped to the folded state. In other words, the bed can be flipped to different states according to actual usage needs, demonstrating strong practicality and flexibility. The torsion spring and compression spring overcome the weight of the bed when it flips upwards, facilitating the flipping of the bed by the operator. The locking component can lock the bed in the use state or the side-standing state, while the bearing component and the limiting block can lock the bed in the folded state. The operator needs to release the lock before flipping the bed, preventing the bed from tipping over during use and improving the stability and safety of the bed during actual use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the bed body of the present invention in use.

[0017] Figure 2 This is a schematic diagram of the bed body of the present invention in a side-standing position;

[0018] Figure 3 This is a schematic diagram of the bed body of the present invention in the stowed state;

[0019] Figure 4 This is a schematic diagram of the bed structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the synchronizing rod of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the flipping component of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the swing seat and mounting base of the present invention;

[0023] Figure 8 This is a schematic diagram of the swing arm structure when the bed body of the present invention is in the retracted state;

[0024] Figure 9 For the present invention Figure 8 Enlarged view of the swing seat;

[0025] Figure 10 This is a schematic diagram of the locking component of the present invention;

[0026] Figure 11 For the present invention Figure 10 A magnified view of the dial;

[0027] Figure 12 For the present invention Figure 10 Enlarged view of the base;

[0028] Figure 13 This is a schematic diagram of the structure of the load-bearing component of the present invention;

[0029] Figure 14 This is a schematic diagram of the structure of the bearing component of the present invention when the latch is removed;

[0030] Figure 15 This is a schematic diagram of the pull rod and return spring of the unlocking component of the present invention;

[0031] Figure 16 This is a schematic diagram of the trigger element of the present invention;

[0032] Figure 17 This is a partial structural schematic diagram of the trigger element of the present invention. Detailed Implementation

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0034] This invention discloses a sleeper lifting bed device, comprising a bed body 1, a tilting assembly 2, a synchronizing rod 3, a locking assembly 4, a bearing assembly 5, a limiting block 6, and an unlocking assembly 7, wherein the bed body 1 is movably mounted on a vehicle body, as shown below. Figures 1-3 As shown, the bed 1 can be adjusted to a horizontal use state, a side-standing state parallel to the vehicle wall, and a folded-up state when not in use. The three states of the bed 1 make its application scenarios flexible and can meet different passenger needs. For example, it effectively improves the problem of small spacing between beds, making it impossible for adults to stand up and causing people to bump their heads when getting up. It increases the range of movement for passengers in the limited fixed space, improves passenger comfort, and makes it easier for flight attendants to clean the beds.

[0035] like Figure 4 and Figure 5As shown, the fixed end of the flipping assembly 2 is fixedly connected to the vehicle body, and the flipping assembly 2 is symmetrically arranged about the bed body 1. The synchronous rod 3 passes through the bed body 1 and the bed body 1 can rotate around it. The two ends of the synchronous rod 3 extend to the outside of the bed body 1 and are fixedly connected to the movable part of the flipping assembly 2. The bed body 1 rotates around the synchronous rod 3, so that the bed body 1 can switch between the use state and the side-standing state. Preferably, two torsion springs 8 are symmetrically installed on the outer periphery of the synchronous rod 3 to assist the bed body 1 in overcoming its own weight and rotating around the synchronous rod 3. One end of the torsion spring 8 is fixedly engaged with the synchronous rod 3, and the other end is engaged with the bed body 1. That is, the setting of the torsion spring 8 can overcome the self-weight of the bed body 1 when flipping the bed body 1, which is beneficial to actual use. Preferably, a guide sleeve 51 is fixedly connected to the inner wall of the bed body 1. The two ends of the synchronous rod 3 extend into the guide sleeve 51 and are rotatably connected to it. That is, the setting of the guide sleeve 51 can improve the stability of the bed body 1 when rotating around the synchronous rod 3. Preferably, in actual use, a mattress 50 can be installed on the bed body 1.

[0036] The locking component 4 is installed on the bed frame 1 and is used to lock the synchronization rod 3, thereby improving the stability and safety of the bed frame 1 in the use state and the side-standing state, and preventing passengers from flipping the bed frame 1 at will; when it is necessary to flip the bed frame 1, the locking component 4 can be operated to release the lock on the synchronization rod 3.

[0037] The load-bearing component 5 is fixedly connected to the vehicle body. The load-bearing component 5 is symmetrically arranged about the bed 1 and is located above the tilting component 2. When the bed 1 is in a side-standing position, tilting the bed 1 upwards causes the tilting component 2 to rotate the bed 1, ultimately bringing the bed 1 into a folded-up state, with the bed 1 supported by the load-bearing component 5. Figure 15 As shown, there are two limiting blocks 6, symmetrically arranged, and fixedly connected to both sides of the bed body 1. When the bed body 1 is in the retracted state, i.e., when the bed body 1 is supported on the support component 5, the limiting blocks 6 cooperate with the support component 5 to lock the bed body 1 in its current position, preventing passengers or staff from accidentally flipping the bed body 1. The unlocking component 7 is located inside the bed body 1. When it is necessary to flip the bed body 1, the unlocking component 7 is operated to release the support component 5 from locking the limiting blocks 6.

[0038] like Figure 1 , Figures 6-9As shown, the flipping assembly 2 includes a fixed frame 9, a pin 10, a swing seat 11, a mounting base 12, a central shaft 13, a bushing 14, a compression spring 15, a nut 16, and a swing rod 17. The fixed frame 9 is fixedly connected to the vehicle body. The pin 10 is fixedly mounted on the fixed frame 9. The swing seat 11 is rotatably mounted on the outer periphery of the pin 10 and is located inside the fixed frame 9. The mounting base 12 is located at the bottom of the swing seat 11 and is rotatably connected to it. The central shaft 13 is fixedly connected to the mounting base 12. The bushing 14 is slidably sleeved on the outer periphery of the central shaft 13, and the compression spring 15 is arranged around the outer periphery of the bushing 14. The nut 16 is fixedly connected to the central shaft 13 and is located between the mounting base 12 and the nut 16. The swing rod 17 is fixedly connected to one side of the swing seat 11. The fixed frame 9 has a notch for the swing rod 17 to rotate, and the bottom of the swing rod 17 extends to the outside of the fixed frame 9 and is fixedly connected to the synchronizing rod 3. Preferably, the swing seat 11 has a U-shaped groove 18, and the top of the mounting seat 12 has a protrusion 19. The protrusion 19 is located in the U-shaped groove 18 and cooperates with it to limit the rotation angle of the swing seat 11. When the bed 1 is flipped from the side-standing state to the folded state, the operator flips the bed 1 upward. The bed 1 drives the swing arm 17 to move synchronously through the synchronous rod 3, so that the swing arm 17 drives the swing seat 11 to rotate around the pin 10. The swing seat 11 is linked with the mounting seat 12, so that the central shaft 13 tilts and rotates outward. Under the action of the compression spring 15, the bed 1 overcomes its own weight when it is flipped, making it convenient for the operator to flip the bed 1.

[0039] like Figure 4 , Figure 10-12As shown, the locking assembly 4 includes a button 20, a trigger shaft 21, a toggle plate 22, a trigger rod 23, a mounting plate 24, a bushing 25, a return spring 26, a base 27, a torsion spring 28, a pressure block 29, and a pressure block 30. The button 20 is mounted on one side of the bed frame 1. The trigger shaft 21 is fixedly connected to the button 20 on one side inside the bed frame 1. The toggle plate 22 is rotatably mounted inside the bed frame 1 and matches the trigger shaft 21. Preferably, a bracket 31 is fixedly connected to the inner side of the bed frame 1, and a rotating shaft 32 is mounted on the bracket 31. One end of the toggle plate 22 is rotatably connected to the rotating shaft 32. The trigger rod 23 is located on one side of the toggle plate 22 and cooperates with it. The mounting plate 24 is fixedly connected to the bed frame 1, and the trigger rod 23 passes through the mounting plate 24 and is slidably connected to it. The bushing 25... A return spring 26 is fixedly installed on the outer periphery of the bushing 25, and the two ends of the return spring 26 are fixedly connected to the bushing 25 and the mounting plate 24 respectively. Preferably, another bushing 25 is fixedly connected to the side of the mounting plate 24, and the return spring 26 is located between the two bushings 25, and the two ends of the return spring 26 are fixedly connected to the two bushings 25 respectively. The base 27 is fixedly installed on the bed 1, and the base 27 is located on one side of the trigger rod 23. The torsion spring 28 is installed on the base 27, and the pressure block 29 is installed on the base 27 through the torsion spring 28. The pressure block 20 is fixedly connected to the synchronizing rod 3. The pressure block 29 abuts against the pressure block 20 under the action of the torsion spring 28, thereby locking the synchronizing rod 3. When it is necessary to release the lock on the synchronizing rod 3, press button 20. Button 20 triggers the dial plate 22 via trigger shaft 21. The dial plate 22 rotates and pushes the trigger rod 23. The trigger rod 23 triggers the pressure block 29. The pressure block 29 rotates and its other end separates from the pressure block 30, releasing the lock on the synchronizing rod 3. Then, flip the bed 1. After the bed 1 flips to the preset position, release button 20. The force disappears, and the action of the return spring 26 causes the trigger rod 23 to reset, thereby causing button 20, trigger shaft 21, and dial plate 22 to return to their original positions. The pressure block 29, under the action of torsion spring 28, again touches the pressure block 30, thus locking the synchronizing rod 3.

[0040] like Figure 1 , Figure 13-15As shown, the supporting component 5 includes a support 33, a second pin 34, a third torsion spring 35, and a latch 36. The support 33 is fixedly connected to the vehicle body. The second pin 34 is fixedly installed in the opening of the support 33. The third torsion spring 35 is sleeved on the outer periphery of the second pin 34. The latch 36 is rotatably installed on the second pin 34 via the third torsion spring 35. Under the force of the third torsion spring 35, the latch 36 abuts against the limiting blocks 6 on both sides of the fixed bed 1. Preferably, a bushing 37 is also installed on the outer periphery of the second pin 34 to axially limit the third torsion spring 35. The second pin 34 can help improve the stability of the third torsion spring 35 during use. Preferably, a buffer rubber strip 38 is installed at the top of the support 33. The buffer rubber strip 38 helps to protect the bed 1. End caps 39 are installed at both ends of the support 33. The end caps 39 help to protect the support 33.

[0041] like Figure 4 , Figure 10 and Figure 15 As shown, the unlocking component 7 includes a pull rod 40, a trigger 41, a protrusion 42, and a second return spring 43. There are two pull rods 40, and the two pull rods 40 move synchronously in opposite directions. The trigger 41 is installed on the bed 1 and is used to trigger the two pull rods 40. The protrusion 42 is set on the pull rod 40. The second return spring 43 is sleeved on the outer periphery of the pull rod 40, and the two ends of the second return spring 43 are fixedly connected to the side wall of the bed 1 and the protrusion, respectively. The side wall of the bed 1 has a through hole for the pull rod 40 to extend and touch the latch 36.

[0042] like Figure 10 , Figure 16 and Figure 17 As shown, the trigger 41 includes a cam 44, a linkage plate 45, a linkage column 46, a connecting plate 47, a handle 48, and a linkage block 49. Two pull rods 40 are symmetrically arranged on the cam 44, and both pull rods 40 are rotatably connected to the cam 44. The linkage plate 45 is rotatably connected to the other side of the cam 44. The linkage column 46 is fixedly connected to the end of the linkage plate 45 away from the cam 44. One end of the connecting plate 47 is fixedly connected to the linkage column 46, and the other end of the connecting plate 47 is rotatably connected to the bed 1. The handle 48 is installed on one side of the bed 1. The linkage block 49 is fixedly connected to the inner side of the handle 48, and the linkage block 49 is used to trigger the linkage plate 45 to rotate. When flipping the bed 1 from the folded-up state to the side-standing state, the unlocking component 7 must first be operated to release the load-bearing component 5 from locking the limit block 6. The operator turns the handle 48, which drives the linkage block 49 to rotate. The linkage block 49 triggers the linkage plate 45 to rotate, which in turn drives the cam 44 to rotate. The rotation of the cam 44 causes the two pull rods 40 to extend outward from the bed 1 and trigger the latch 36. The latch 36 rotates to release the lock on the limit block 6.

Claims

1. A sleeper lifting bed device, comprising a bed (1) movably mounted on a vehicle body, characterized in that: It also includes a flipping assembly (2) symmetrically arranged on both sides of the bed (1) and assisting the bed (1) in flipping between the use state, the side-standing state and the folded state; a synchronization rod (3) that runs through the bed (1) and rotates around it to achieve the switching between the use state and the side-standing state; a locking assembly (4) that is set on the bed (1) and cooperates with the synchronization rod (3) to lock the bed (1) in the use state or the side-standing state; a bearing assembly (5) that is fixedly connected to the vehicle body and located above the flipping assembly (2) to support the bed (1) in the folded state; a limiting block (6) that cooperates with the bearing assembly (5) to lock the bed (1) in the folded state on both sides of the bed (1); and an unlocking assembly (7) that cooperates with the bearing assembly (5) to unlock the limiting block (6) on the bed (1). The two ends of the synchronization rod (3) extend to the outside of the bed (1) and are fixedly connected to the movable part of the flipping assembly (2).

2. The sleeper lifting bed device according to claim 1, characterized in that: Two torsion springs (8) are symmetrically installed on the outer periphery of the synchronizing rod (3) to assist the bed (1) in overcoming its own weight and rotating around the synchronizing rod (3). One end of the torsion spring (8) is fixedly engaged with the synchronizing rod (3), and the other end is engaged with the bed (1).

3. The sleeper lifting bed device according to claim 1, characterized in that: The flipping assembly (2) includes a fixed frame (9) fixedly connected to the vehicle body, a pin (10) fixedly mounted on the fixed frame (9), a swing seat (11) rotatably mounted on the outer periphery of the pin (10), a mounting seat (12) set at the bottom of the swing seat (11) and rotatably connected thereto, a central shaft (13) fixedly connected to the mounting seat (12), a bushing (14) sleeved on the outer periphery of the central shaft (13), a compression spring (15) surrounding the outer periphery of the bushing (14) and used to assist the bed (1) in switching between the folded and side-standing states, a nut (16) fixedly connected to the central shaft (13) and abutting against the bottom end of the compression spring (15), and a swing rod (17) fixedly connected to one side of the swing seat (11). The fixed frame (9) has a notch for the swing rod (17) to rotate, and the bottom of the swing rod (17) extends to the outside of the fixed frame (9) and is fixedly connected to the synchronizing rod (3).

4. The sleeper lifting bed device according to claim 3, characterized in that: The swing seat (11) has a U-shaped groove (18), and the top of the mounting seat (12) has a protrusion (19). The protrusion (19) is located in the U-shaped groove (18) and cooperates with it to limit the rotation angle of the swing seat (11).

5. The sleeper lifting bed device according to claim 1, characterized in that: The locking assembly (4) includes a button (20) installed on one side of the bed (1), a trigger shaft (21) fixedly connected to the button (20) on one side inside the bed (1), a dial plate (22) rotatably installed inside the bed (1) and cooperating with the trigger shaft (21), a trigger rod (23) located on one side of the dial plate (22) and cooperating with it, a mounting plate (24) fixedly installed inside the bed (1) and slidably connected to the trigger rod (23), and a bushing fixedly connected to the outer periphery of the trigger rod (23). (25) A reset spring (26) is arranged around the outer periphery of the trigger rod (23) and fixedly connected at both ends to the mounting plate (24) and the bushing (25) respectively; a base (27) is arranged on one side of the trigger rod (23); a torsion spring (28) is installed on the base (27); a pressure block (29) is connected to the torsion spring (28) and a pressure block (30) is fixedly connected to the synchronizing rod (3); the pressure block (29) abuts against the pressure block (30) under the action of the torsion spring (28).

6. The sleeper lifting bed device according to claim 5, characterized in that: A bracket (31) is fixedly connected to the inner side of the bed (1), and a rotating shaft (32) is installed on the bracket (31). One end of the lever (22) is rotatably connected to the rotating shaft (32).

7. The sleeper lifting bed device according to claim 1, characterized in that: The bearing assembly (5) includes a support (33) fixedly connected to the vehicle body, a pin (34) fixedly installed in the opening of the support (33), a torsion spring (35) sleeved on the outer periphery of the pin (34), and a latch (36) rotatably installed on the pin (34) via the torsion spring (35). The latch (36) abuts against the limiting blocks (6) on both sides of the fixed bed (1) under the force of the torsion spring (35).

8. The sleeper lifting bed device according to claim 7, characterized in that: The outer periphery of the second pin (34) is also equipped with the bushing of the third auxiliary torsion spring (35) (37); the top of the support (33) is equipped with a buffer rubber strip (38), and the two ends of the support (33) are equipped with end caps (39).

9. The sleeper lifting bed device according to claim 1, characterized in that: The unlocking component (7) includes two synchronously reverse-moving pull rods (40), a trigger (41) that triggers the movement of the pull rods (40), a protrusion (42) disposed on the outer periphery of the pull rods (40), and a reset spring (43) sleeved on the outer periphery of the pull rods (40) and fixedly connected at both ends to the side wall of the bed body (1) and the protrusion, respectively. The side wall of the bed body (1) is provided with a through hole for the pull rods (40) to extend and touch the latch (36).

10. The sleeper lifting bed device according to claim 9, characterized in that: The trigger (41) includes a cam (44) rotatably connected to two pull rods (40), a linkage plate (45) mounted on one side of the cam (44), a linkage column (46) fixedly connected to the linkage plate (45), a connecting plate (47) mounted on the bottom of the linkage column (46) and rotatably connected to the bed (1), a handle (48) mounted on one side of the bed (1), and a linkage block (49) fixedly connected to the inside of the handle (48) and used to trigger the linkage plate (45) to rotate.

Images