Sleeping berth lifting bed device

Abstract

The invention discloses a sleeping berth lifting bed device which comprises a bed body movably arranged on a vehicle body. The overturning assemblies are symmetrically arranged on the two sides of the bed body and assist the bed body in overturning among a using state, a side standing state and a folded state; the synchronous rod penetrates through the bed body and rotates around the synchronous rod to achieve switching between the using state and the side standing state; the locking assembly is matched with the synchronous rod to lock the bed body in the using state or the side standing state; the bearing assembly is used for supporting the bed body to be in a folded state, the limiting blocks are fixedly connected to the two sides of the bed body, the unlocking assembly matched with the bearing assembly is installed on the bed body, and the two ends of the synchronous rod extend out of the bed body and are fixedly connected with the movable part of the overturning assembly. The bed body can be overturned to different states according to actual use requirements, practicability and flexibility are high, locking needs to be unlocked firstly when the bed body is overturned, the bed body can be prevented from being overturned in the use process, and the stability and safety of the bed body in the actual use process can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, and in particular to a berth lifting bed device. Background Art

[0002] Most of the berth beds used in existing rail transit are fixed structures, and the distance between two adjacent beds is small, so adults cannot stand up, and people are prone to bumping their heads when standing up. In actual use, they are limited by their fixed structure.

[0003] If berths are needed instead of hard seats, the distance between adjacent berths is too small, affecting the comfort of passengers; if there are no passengers riding or sleeping, the fixed berth structure takes up a large amount of space in the car, causing some inconvenience during the journey; when flight attendants change bed sheets for cleaning, they are not only restricted by the narrow space, but the beds are fixed, making it inconvenient for them to flip over the bed boards. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a berth lifting bed device which 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 arranged on a vehicle body, and also including a flipping assembly symmetrically arranged on both sides of the bed body and assisting the bed body to flip between a use state, a side-standing state and a folded state, a synchronization rod running through the bed body and around which the bed body rotates to achieve switching between the use state and the side-standing state, a locking assembly arranged 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 bearing assembly fixedly connected to the vehicle body and located above the flipping assembly for supporting the bed body in the folded state, limit blocks fixedly connected to both sides of the bed body and cooperating with the bearing assembly to lock the bed in the folded state, an unlocking assembly installed on the bed body and cooperating with the bearing assembly to release the lock of the limit blocks, and 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 symmetrically arranged torsion springs are symmetrically installed on the outer periphery of the synchronization rod to assist the bed body to overcome its own weight and rotate around the synchronization rod, and one end of the torsion spring is fixedly matched with the synchronization rod and the other end is matched with the bed body.

[0007] Furthermore, the flip assembly includes a fixed frame fixedly connected to the vehicle body, a pin shaft 1 fixedly mounted on the fixed frame, a swing seat rotatably mounted on the outer periphery of the pin shaft 1, a mounting seat arranged at the bottom of the swing seat and rotatably connected thereto, a central axis fixedly connected to the mounting seat, a bushing sleeved on the outer periphery of the central axis, a compression spring arranged around the outer periphery of the bushing and used to assist the bed body in switching between a folded state and a sideways state, a nut fixedly connected to the central axis and fixedly abutting against the bottom end of the compression spring, and a rocker arm fixedly connected to one side of the swing seat, the fixed frame is provided with a slot for the rocker arm to rotate, and the bottom of the rocker arm extends to the outside of the fixed frame and is fixedly connected to the synchronization rod.

[0008] Furthermore, the swing seat is provided with a U-shaped groove, and a protrusion is provided at the top of the mounting seat. The protrusion is located in the U-shaped groove and cooperates with the U-shaped groove 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 a side of the button located inside the bed, a paddle plate rotatably installed in the bed and cooperating with the trigger shaft, a trigger rod located on one side of the paddle plate and cooperating with the trigger rod, a mounting plate fixedly installed inside the bed and slidably connected to the trigger rod, a sleeve 1 fixedly connected to the outer periphery of the trigger rod, a return spring 1 surrounding the outer periphery of the trigger rod and fixedly connected to the mounting plate and the sleeve 1 at both ends, a base arranged on one side of the trigger rod, a torsion spring 2 installed on the base, a pressure block 1 cooperating with the torsion spring 2, and a pressure block 2 fixedly connected to the synchronization rod, wherein the pressure block 1 resists the pressure block 2 under the action of the torsion spring 2.

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

[0011] Furthermore, the bearing assembly includes a support fixedly connected to the vehicle body, a pin shaft 2 fixedly installed in an opening of the support, a torsion spring 3 sleeved on the outer periphery of the pin shaft 2, and a lock installed on the pin shaft 2 through rotation of the torsion spring 3, and the lock buckle contacts the limit blocks on both sides of the fixed bed body under the action of the torsion spring 3.

[0012] Furthermore, a shaft sleeve 2 for assisting a torsion spring 3 is installed on the outer periphery of the second pin shaft; a buffer rubber strip is installed on the top of the support, and end covers are installed on both ends of the support.

[0013] Furthermore, the unlocking assembly includes two pull rods that move synchronously in opposite directions, a trigger member that triggers the movement of the pull rods, a protrusion arranged on the outer periphery of the pull rods, and two return springs that are sleeved on the outer periphery of the pull rods and whose two ends are respectively fixedly connected to the side walls of the bed and the protrusions. The side wall of the bed is provided with a through hole for the pull rod to extend out to trigger the lock.

[0014] Furthermore, the trigger member includes a cam rotatably connected to the two pull rods, a linkage column installed on the cam and fixedly connected to the linkage plate, a connecting plate installed at the bottom of the linkage column and rotatably connected to the bed, a handle installed on one side of the bed, and a linkage block fixedly connected to the inner side 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 assembly, the synchronization rod and the bearing assembly, the bed of the present invention can be flipped to a use state, a side-standing state and a folded state. When the bed is in use state, it is convenient for passengers to lie down. When there are no passengers sitting or sleeping, the bed can be flipped to a side-standing state to reduce 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 a folded state, that is, the bed can be flipped to different states according to actual use needs, and it has strong practicality and flexibility; through the arrangement of the torsion spring and the compression spring, the dead weight of the bed when flipping upward can be overcome, which is convenient for the staff to flip the bed; through the arrangement of the locking assembly, the bed can be locked in the use state or the side-standing state, and through the arrangement of the bearing assembly and the limit block, the bed can be locked in the folded state. When the staff flips the bed, they need to release the lock first, which can prevent the bed from tipping over during use, which is beneficial to improving the stability and safety of the bed during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the bed body of the present invention in a use state;

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

[0018] Figure 3 It is a structural schematic diagram of the bed body of the present invention in a folded state;

[0019] Figure 4 It is a structural schematic diagram of the bed body of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the synchronization rod of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the flip assembly of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the swing seat and the mounting seat of the present invention;

[0023] Figure 8 It is a structural schematic diagram of the swing arm when the bed body of the present invention is in a folded state;

[0024] Fig. 9 For the present invention Figure 8 An enlarged view of the swing seat;

[0025] Fig.10 It is a structural schematic diagram of the locking assembly of the present invention;

[0026] Fig.11 For the present invention Fig.10 An enlarged view of the dial plate;

[0027] Fig.12 For the present invention Fig.10 An enlarged view of the base;

[0028] Fig.13 It is a structural schematic diagram of the bearing assembly of the present invention;

[0029] Fig.14 It is a schematic diagram of the structure of the load-bearing assembly of the present invention when the lock buckle is removed;

[0030] Fig.15 It is a schematic structural diagram of a pull rod and a return spring of an unlocking assembly of the present invention;

[0031] Fig.16 It is a schematic diagram of the structure of the trigger member of the present invention;

[0032] Fig.17 It is a partial structural schematic diagram of the trigger member of the present invention. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0034] The present invention discloses a berth lifting device, comprising a bed body 1, a turning assembly 2, a synchronization rod 3, a locking assembly 4, a bearing assembly 5, and an unlocking assembly 7 locked by a limit block 6, wherein the bed body 1 is movably arranged on a vehicle body, such as Figure 1-Figure 3 As shown, the bed 1 can be adjusted to a horizontal use state, a side-standing state set parallel to the vehicle body wall, and a folded state when the bed 1 is not in use. The three states of the bed 1 make its application scenarios flexible and can meet the different usage needs of passengers; for example, it can effectively improve the problem that the distance between beds is small, adults cannot stand, and people easily bump their heads when standing up. In the limited fixed space, the passenger's own range of activities is increased, the passenger experience comfort is improved, and it is convenient for flight attendants to clean the beds.

[0035] like Figure 4 and Figure 5As shown, the fixed end of the flip assembly 2 is fixedly connected to the vehicle body, and the flip assembly 2 is symmetrically arranged about the bed body 1, the synchronization rod 3 passes through the bed body 1 and the bed body 1 can rotate around it, the two ends of the synchronization rod 3 extend to the outside of the bed body 1 and are fixedly connected to the movable part of the flip assembly 2, and the bed body 1 rotates around the synchronization rod 3, so that the bed body 1 can switch between the use state and the side state; preferably, the outer periphery of the synchronization rod 3 is symmetrically installed with two symmetrically arranged torsional springs 8 for assisting the bed body 1 to overcome its own weight and rotate around the synchronization rod 3, and one end of the torsion spring 8 is fixedly matched with the synchronization rod 3 and the other end is matched 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, the inner wall of the bed body 1 is fixedly connected with a guide sleeve 51, and the two ends of the synchronization rod 3 extend into the guide sleeve 51 and are rotatably connected thereto, that is, the setting of the guide sleeve 51 can improve the stability of the bed body 1 when rotating around the synchronization rod 3; preferably, in actual use, a mattress 50 can be installed on the bed body 1.

[0036] The locking assembly 4 is installed on the bed 1, and is used to lock the synchronization rod 3, thereby improving the stability and safety of the bed 1 in use and sideways states, and preventing passengers from flipping the bed 1 at will; when the bed 1 needs to be flipped, the locking assembly 4 is operated to unlock the synchronization rod 3.

[0037] The bearing assembly 5 is fixedly connected to the vehicle body, and the bearing assembly 5 is symmetrically arranged about the bed body 1, and the bearing assembly 5 is located above the flip assembly 2. When the bed body 1 is in a sideways state, the bed body 1 is flipped upward so that the flip assembly 2 drives the bed body 1 to rotate, and finally the bed body 1 is in a folded state, and the bed body 1 is supported on the bearing assembly 5; Fig.15 As shown, there are two limit blocks 6, which are symmetrically arranged and fixedly connected to both sides of the bed body 1. When the bed body 1 is in the stowed state, that is, when the bed body 1 is supported on the bearing assembly 5, the limit blocks 6 cooperate with the bearing assembly 5 to lock the bed body 1 in the current position to prevent passengers or staff from accidentally flipping the bed body 1. The unlocking assembly 7 is arranged in the bed body 1. When the bed body 1 needs to be flipped, the unlocking assembly 7 is operated to release the locking of the limit blocks 6 by the bearing assembly 5.

[0038] like Figure 1 , Figure 6-Figure 9As shown, the flip assembly 2 includes a fixing frame 9, a pin shaft 10, a swing seat 11, a mounting seat 12, a central shaft 13, a bushing 14, a compression spring 15, a nut 16 and a rocker arm 17, wherein the fixing frame 9 is fixedly connected to the vehicle body, the pin shaft 10 is fixedly mounted on the fixing frame 9, the rocker arm 11 is rotatably mounted on the outer periphery of the pin shaft 10, and the rocker arm 11 is located inside the fixing frame 9, the mounting seat 12 is arranged at the bottom of the rocker arm 11 and is rotatably connected thereto, the central shaft 13 is fixedly connected to the mounting seat 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 the compression spring 15 is located between the mounting seat 12 and the nut 16, the rocker arm 17 is fixedly connected to one side of the rocker arm 11, the fixing frame 9 is provided with a slot for the rocker arm 17 to rotate, and the bottom of the rocker arm 17 extends to the outside of the fixing frame 9 and is fixedly connected to the synchronization rod 3. Preferably, the swing seat 11 is provided with a U-shaped groove 18, and the top of the mounting seat 12 is provided with a protrusion 19, which 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 body 1 is flipped from the side-standing state to the stowed state, the staff flips the bed body 1 upward, and the bed body 1 drives the swing rod 17 to move synchronously through the synchronization rod 3, so that the swing rod 17 drives the swing seat 11 to rotate around the pin 10, and the swing seat 11 is linked to the mounting seat 12, so that the central axis 13 tilts and rotates outward, and the bed body 1 is flipped under the action of the compression spring 15 to overcome the dead weight of the bed body 1, so that the staff can flip the bed body 1 conveniently.

[0039] like Figure 4 , Figure 10-12As shown, the locking assembly 4 includes a button 20, a trigger shaft 21, a dial plate 22, a trigger rod 23, a mounting plate 24, a sleeve 25, a return spring 26, a base 27, a torsion spring 28, a pressure block 29 and a pressure block 30; wherein the button 20 is installed on one side of the bed 1, the trigger shaft 21 is fixedly connected to the side of the button 20 located inside the bed 1, the dial plate 22 is rotatably installed in the bed 1 and matches the trigger shaft 21, preferably, a bracket 31 is fixedly connected to the inner side of the bed 1, a rotating shaft 32 is installed on the bracket 31, and one end of the dial plate 22 is rotatably connected to the rotating shaft 32; the trigger rod 23 is located on one side of the dial plate 22 and cooperates with it, the mounting plate 24 is fixedly connected to the bed 1, the trigger rod 23 passes through the mounting plate 24 and is slidably connected to it, the sleeve 25 It is fixedly mounted on the outer periphery of a sleeve 25, a return spring 26 is located on the outer periphery of the trigger rod 23, and the two ends of the return spring 26 are respectively fixedly connected to the sleeve 25 and the mounting plate 24. Preferably, another sleeve 25 is fixedly connected to the side of the mounting plate 24, and the return spring 26 is located between the two sleeves 25, and the two ends of the return spring 26 are respectively fixedly connected to the two sleeves 25; the base 27 is fixedly mounted on the bed body 1, and the base 27 is located on one side of the trigger rod 23, a torsion spring 28 is mounted on the base 27, and a pressure block 29 is mounted on the base 27 through the torsion spring 28, and the pressure block 230 is fixedly connected to the synchronization rod 3, and the pressure block 29 contacts the pressure block 230 under the action of the torsion spring 28, thereby locking the synchronization rod 3. When it is necessary to release the lock of the synchronization rod 3, the button 20 is pressed, and the button 20 touches the dial plate 22 through the trigger shaft 21. The dial plate 22 rotates to push the trigger rod 23, and the trigger rod 23 touches the pressure block 1 29. The pressure block 1 29 rotates and the other end of the pressure block 1 29 is separated from the pressure block 2 30, thereby releasing the fixation of the synchronization rod 3, and then the bed body 1 is turned over. After the bed body 1 is turned over to the preset position, the button 20 is released, the force disappears, and the action of the reset spring 1 26 causes the trigger rod 23 to reset, thereby causing the button 20, the trigger shaft 21, and the dial plate 22 to return to their original positions. The pressure block 1 29 again contacts the pressure block 2 30 under the action of the torsion spring 28, thereby locking the synchronization rod 3.

[0040] like Figure 1 , Figure 13-15As shown, the bearing assembly 5 includes a support 33, a second pin 34, a third torsion spring 35 and a lock 36, wherein 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 lock 36 is rotatably installed on the second pin 34 through the third torsion spring 35, and the lock 36 contacts the limit blocks 6 on both sides of the fixed bed body 1 under the action of the third torsion spring 35. Preferably, the outer periphery of the second pin 34 is also installed with a second sleeve 37 for axially limiting the third torsion spring 35, and the second pin 34 can assist in improving the stability of the third torsion spring 35 when in use. Preferably, a buffer rubber strip 38 is installed at the top of the support 33, and the setting of the buffer rubber strip 38 is conducive to protecting the bed body 1; end covers 39 are installed at both ends of the support 33, and the setting of the end covers 39 is conducive to protecting the support 33.

[0041] like Figure 4 , Fig.10 and Fig.15 As shown, the unlocking assembly 7 includes a pull rod 40, a trigger member 41, a protrusion 42 and a reset spring 43. There are two pull rods 40 in total, and the two pull rods 40 move synchronously in opposite directions. The trigger member 41 is installed on the bed 1, and the trigger member 41 is used to trigger the two pull rods 40. The protrusion 42 is set on the pull rod 40. The reset spring 43 is sleeved on the outer periphery of the pull rod 40, and the two ends of the reset spring 43 are respectively fixedly connected to the side wall of the bed 1 and the protrusion 19. The side wall of the bed 1 is provided with a through hole for the pull rod 40 to extend out to trigger the lock buckle 36.

[0042] like Fig.10 , Fig.16 and Fig.17 As shown, the trigger member 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 the two pull rods 40 are both 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 one 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 body 1. The handle 48 is installed on one side of the bed body 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 the bed body 1 is flipped from the folded state to the side-standing state, it is first necessary to operate the unlocking component 7 to release the lock of the supporting component 5 on the limit block 6. The staff rotates the handle 48, and the handle 48 drives the linkage block 49 to rotate. The linkage block 49 triggers the linkage plate 45 to rotate, and the linkage plate 45 drives the cam 44 to rotate. The rotation of the cam 44 causes the two pull rods 40 to extend to the outside of the bed body 1 and trigger the lock 36. The lock 36 rotates to release the lock on the limit block 6.

Claims

1. A berth lifting bed device, comprising a bed body (1) movably arranged on a vehicle body, characterized in that: The invention also comprises a flip assembly (2) symmetrically arranged on both sides of the bed (1) and assisting the bed (1) to flip between a use state, a sideways state and a stowed state, a synchronization rod (3) penetrating the bed (1) and around which the bed (1) rotates to realize switching between the use state and the sideways state, a locking assembly (4) arranged on the bed (1) and cooperating with the synchronization rod (3) to lock the bed (1) in the use state or the sideways state, a bearing assembly (5) fixedly connected to the vehicle body and located above the flip assembly (2) and used to support the bed (1) in the stowed state, a limit block (6) fixedly connected to both sides of the bed (1) and cooperating with the bearing assembly (5) to lock the bed (1) in the stowed state, and an unlocking assembly (7) mounted on the bed (1) and cooperating with the bearing assembly (5) to release the lock of the limit block (6), and both ends of the synchronization rod (3) extend to the outside of the bed (1) and are fixedly connected to the movable part of the flip assembly (2).

2. The berth lifting bed device according to claim 1, characterized in that: The outer periphery of the synchronization rod (3) is symmetrically mounted with two symmetrically arranged torsion springs (8) for assisting the bed body (1) to overcome its own weight and rotate around the synchronization rod (3); one end of the torsion spring (8) is fixedly matched with the synchronization rod (3) and the other end is matched with the bed body (1).

3. The berth lifting bed device according to claim 1, characterized in that: The tilting assembly (2) comprises a fixing frame (9) fixedly connected to the vehicle body, a pin shaft (10) fixedly mounted on the fixing frame (9), a swing seat (11) rotatably mounted on the outer periphery of the pin shaft (10), a mounting seat (12) arranged 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) arranged around the outer periphery of the bushing (14) and used to assist the bed body (1) in switching between a stowed state and a sideways state, a nut (16) fixedly connected to the central shaft (13) and fixedly 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), wherein the fixing frame (9) is provided with a slot for the swing rod (17) to rotate, and the bottom of the swing rod (17) extends to the outside of the fixing frame (9) and is fixedly connected to the synchronization rod (3).

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

5. The berth lifting bed device according to claim 1, characterized in that: The locking assembly (4) comprises a button (20) mounted on one side of the bed body (1), a trigger shaft (21) fixedly connected to one side of the button (20) located inside the bed body (1), a dial plate (22) rotatably mounted inside the bed body (1) and cooperating with the trigger shaft (21), a trigger rod (23) located on one side of the dial plate (22) and cooperating with the trigger shaft (21), a mounting plate (24) fixedly mounted inside the bed body (1) and slidably connected to the trigger rod (23), and a shaft sleeve (24) fixedly connected to the outer periphery of the trigger rod (23). (25), a return spring (26) arranged around the outer periphery of the trigger rod (23) and having two ends respectively fixedly connected to the mounting plate (24) and the shaft sleeve (25), a base (27) arranged on one side of the trigger rod (23), a torsion spring (28) installed on the base (27), a pressure block (29) connected to the torsion spring (28), and a pressure block (30) fixedly connected to the synchronization rod (3), wherein the pressure block (29) abuts against the pressure block (30) under the action of the torsion spring (28).

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

7. The berth lifting bed device according to claim 1, characterized in that: The bearing assembly (5) comprises a support (33) fixedly connected to the vehicle body, a second pin (34) fixedly mounted in an opening of the support (33), a third torsion spring (35) sleeved on the outer periphery of the second pin (34), and a lock (36) rotatably mounted on the second pin (34) by means of the third torsion spring (35); the lock (36) abuts against limit blocks (6) fixed on both sides of the bed body (1) under the action of the third torsion spring (35).

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

9. The berth lifting bed device according to claim 1, characterized in that: The unlocking assembly (7) comprises two pull rods (40) that move synchronously in opposite directions, a trigger member (41) that triggers the movement of the pull rods (40), a protrusion (42) arranged on the outer periphery of the pull rods (40), and a return spring (43) that is sleeved on the outer periphery of the pull rods (40) and has two ends fixedly connected to the side wall of the bed (1) and the protrusion (19), respectively. The side wall of the bed (1) is provided with a through hole for the pull rod (40) to extend out to trigger the lock buckle (36).

10. The sleeper lifting bed device according to claim 1, characterized in that: The trigger member (41) comprises a cam (44) rotatably connected to the 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 at the bottom of the linkage column (46) and rotatably connected to the bed body (1), a handle (48) mounted on one side of the bed body (1), and a linkage block (49) fixedly connected to the inner side of the handle (48) and used to trigger the linkage plate (45) to rotate.

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