Adjustable backrest structure for railway vehicle sleeping berth

Abstract

The utility model relates to the technical field of accessory devices for railway vehicle sleeping berths, in particular to an adjustable backrest structure for a railway vehicle sleeping berth, which can enable passengers to quickly adjust the backrest structure to a proper angle according to own conditions, so that the convenience and the comfort of the device are improved, and the practicability is enhanced. Comprising a bed board body and a first bed body, the left end of the top of the bed board body is connected with the bottom of the first bed body, and the bed further comprises a second bed body, a connecting screw rod, a connecting block, a connecting plate, two first hinged supports, an adjusting assembly, a hinge assembly, a limiting assembly and a supporting mechanism; the connecting block is in threaded connection with the connecting screw, the bottom of the connecting block is slidably attached to the bottom of the bed board body groove, the front end and the rear end of the bed board body groove are slidably attached to one end of the connecting plate through the limiting assembly, and the bottom of the connecting plate is connected with the top of the connecting block.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for sleeping berths of rail vehicles, in particular to an adjustable backrest structure for sleeping berths of rail vehicles. Background Technique

[0002] As is well known, sleeping berths on rail vehicles are sleeping facilities provided for passengers in railway passenger services, mainly used for long-distance travel, especially during night trips, to ensure that passengers can get sufficient rest. The sleeping berths are usually located in specially designed sleeping carriages, which are equipped with multiple independent sleeping berth units. Each unit usually includes upper and lower berths or middle berths, and is equipped with bedding such as mattresses, sheets, blankets or quilts. The backrest structure refers to a mechanical structure in the sleeping carriage of rail vehicles such as trains and high-speed rails, which is used to support the back of passengers and can adjust the angle to adapt to different resting postures, so that passengers can obtain a more comfortable sleeping or resting experience in the sleeping carriage.

[0003] When a conventional backrest structure for a sleeping berth of a rail vehicle is in use, it is found that the angle of adjustment of this mechanism is fixed, and passengers cannot adjust it to a suitable angle according to their own conditions, thus reducing the convenience of this device, and therefore resulting in poor practicability. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides an adjustable backrest structure for a sleeping berth of a rail vehicle, which can enable passengers to quickly adjust to a suitable angle according to their own conditions, thereby improving the convenience and comfort of this device, and therefore enhancing the practicability.

[0005] An adjustable backrest structure for a sleeping berth of a rail vehicle of the utility model includes a bed board main body and a first bed body. The left end of the top of the bed board main body is connected to the bottom of the first bed body. It also includes a second bed body, a connecting screw, a connecting block, a connecting plate, two groups of first hinge seats, an adjusting component, a hinged component, a limiting component and a supporting mechanism. A groove is provided at the right end of the top of the bed board main body. The two ends of the connecting screw are respectively rotatably connected to the two ends of the groove of the bed board main body. The connecting block is threadedly connected to the connecting screw, and the bottom of the connecting block is slidably attached to the bottom of the groove of the bed board main body. The front and rear ends of the groove of the bed board main body are respectively slidably attached to one end of the connecting plate through the limiting component. The bottom of the connecting plate is connected to the top of the connecting block. The left end of the bottom of the second bed body is evenly hinged to the top of the bed board main body through two groups of first hinge seats. The top of the connecting plate is hinged to the bottom of the second bed body through the hinged component, and the right end of the bottom of the second bed body is closely attached to the top of the bed board main body through the supporting mechanism. An adjusting component is provided at the right end of the connecting screw.

[0006] Preferably, the hinged component includes four groups of second hinge seats and two groups of support rods. The top of the connecting plate is evenly hinged to one end of the support rods through two groups of second hinge seats, and the bottom of the second bed body is hinged to the other end of the support rods through the other two groups of second hinge seats.

[0007] Preferably, the limiting component includes two groups of positioning blocks. A group of sliding grooves are respectively arranged at the front and rear ends of the groove of the main body of the bed board. The two groups of positioning blocks are respectively slidably connected to this group of sliding grooves, and the front and rear ends of the connecting plate are respectively connected to one end of the positioning blocks.

[0008] Preferably, the adjusting component includes two groups of helical gears and a rotating rod. A group of helical gears are arranged on the outer right end of the connecting screw rod. A group of reserved holes are arranged on the right side of the front end of the groove of the main body of the bed board, and this group of reserved holes are rotationally connected to the outer side of the rotating rod. Another group of helical gears are arranged at the rear end of the rotating rod, and this group of helical gears are meshed and clamped with the helical gears on the outer side of the connecting gear.

[0009] Preferably, the supporting mechanism includes a fixed block, a pressing plate and a buffer component. The right end of the bottom of the second bed body is connected to the top of the fixed block. The bottom of the fixed block is slidably sleeved with the top of the pressing plate through the buffer component, and the bottom of the pressing plate is closely attached to the top right end of the main body of the bed board.

[0010] Preferably, the buffer component includes multiple groups of damping rods and multiple groups of connecting springs. A groove is arranged at the bottom of the fixed block. The top of the groove of the fixed block is evenly connected to the tops of multiple groups of damping rods, and the top of the pressing plate is connected to the bottoms of multiple groups of damping rods. A group of connecting springs are respectively arranged on the outer sides of multiple groups of damping rods, and the top of the pressing plate is slidably sleeved with the groove of the fixed block. [[ID=eleven]] [[ID=twelve]]

[0011] [[ID=thirteen]]Preferably, it further includes a turntable, and the front end of the rotating rod is connected to the rear end of the turntable. [[ID=fourteen]] [[ID=fifteen]]

[0012] [[ID=sixteen]]Preferably, it further includes a sponge pad. The bottom of the pressing plate is connected to the top of the sponge pad, and the bottom of the sponge pad is closely attached to the top right end of the main body of the bed board. [[ID=seventeen]] [[ID=eighteen]]

[0013] [[ID=nineteen]]Compared with the prior art, the beneficial effects of an adjustable backrest structure for a railway vehicle sleeper of the present invention are as follows: First, the user rotates the connecting screw rod through the adjusting component, so that the connecting block drives the connecting plate to slide through the limiting component, and is hinged through the hinging component, so that the second bed body is adjusted in angle through the first hinge seat until it is adjusted to a suitable angle for the user, which can enable the passenger to quickly adjust to a suitable angle according to their own situation, thereby improving the convenience and comfort of the device, and thus enhancing the practicality. [[ID=twenty]] [[ID=twenty-one]]BRIEF DESCRIPTION OF THE DRAWINGS [[ID=twenty-two]] [[ID=twenty-three]]

[0014] [[ID=twenty-four]] Figure 1 [[ID=twenty-five]]is a schematic structural diagram of the present invention; [[ID=twenty-six]] [[ID=twenty-seven]]

[0015] [[ID=twenty-eight]] Figure 2 [[ID=twenty-nine]]is a three-dimensional schematic diagram of the internal structure of the present invention; [[ID=thirty]] [[ID=thirty-one]]

[0016] [[ID=thirty-two]] Figure 3 [[ID=thirty-three]]is a front view schematic diagram of a part of the structure of the present invention; [[ID=thirty-four]] [[ID=thirty-five]]

[0017] [[ID=thirty-six]] Figure 4It is an enlarged schematic view of the partial structure of A of the present utility model;

[0018] Reference numerals in the drawings: 1, main body of the bed board; 2, first bed body; 3, second bed body; 4, connecting screw; 5, connecting block; 6, connecting plate; 7, first hinge seat; 8, second hinge seat; 9, support rod; 10, positioning block; 11, helical gear; 12, rotating rod; 13, fixed block; 14, pressing plate; 15, damping rod; 16, connecting spring; 17, turntable; 18, sponge pad. Specific embodiments

[0019] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0020] As Figures 1 to 4 shown, an adjustable backrest structure for a sleeper of a rail vehicle of the present utility model includes a main body 1 of the bed board and a first bed body 2. The left end of the top of the main body 1 of the bed board is connected to the bottom of the first bed body 2. It further includes a second bed body 3, a connecting screw 4, a connecting block 5, a connecting plate 6, two groups of first hinge seats 7, an adjusting assembly, a hinging assembly, a limiting assembly and a supporting mechanism. A groove is provided at the right end of the top of the main body 1 of the bed board. The two ends of the connecting screw 4 are respectively rotatably connected to the two ends of the groove of the main body 1 of the bed board. The connecting block 5 is threadedly connected to the connecting screw 4, and the bottom of the connecting block 5 is slidably and tightly attached to the bottom of the groove of the main body 1 of the bed board. The front and rear ends of the groove of the main body 1 of the bed board are respectively slidably and tightly attached to one end of the connecting plate 6 through the limiting assembly. The bottom of the connecting plate 6 is connected to the top of the connecting block 5. The left end of the bottom of the second bed body 3 is evenly hinged to the top of the main body 1 of the bed board through two groups of first hinge seats 7. The top of the connecting plate 6 is hinged to the bottom of the second bed body 3 through the hinging assembly, and the right end of the bottom of the second bed body 3 is tightly attached to the top of the main body 1 of the bed board through the supporting mechanism. An adjusting assembly is provided at the right end of the connecting screw 4; First, the user rotates the connecting screw through the adjusting assembly, so that the connecting block drives the connecting plate to slide through the limiting assembly, and is hinged through the hinging assembly, so that the second bed body adjusts the angle through the first hinge seat until it is adjusted to a suitable angle for the user, which can enable the passenger to quickly adjust to a suitable angle according to their own situation, thereby improving the convenience and comfort of the device, and thus enhancing the practicability.

[0021] As a preference of the above embodiment, the hinging assembly includes four groups of second hinge seats 8 and two groups of support rods 9. The top of the connecting plate 6 is evenly hinged to one end of the support rods 9 through two groups of second hinge seats 8. The bottom of the second bed body 3 is hinged to the other end of the support rods 9 through the other two groups of second hinge seats 8; By hinging through the second hinge seats and the support rods, the angle of the second bed body can be quickly adjusted, thus enhancing the practicability.

[0022] Preferably, as in the above embodiment, the limiting assembly includes two sets of positioning blocks 10. A set of sliding grooves are respectively arranged at the front and rear ends of the groove of the bed board main body 1. The two sets of positioning blocks 10 are respectively slidably connected to this set of sliding grooves. The front and rear ends of the connecting plate 6 are respectively connected to one end of the positioning blocks 10. It can guide the connecting plate and the connecting block, prevent the connecting block from driving the connecting plate to rotate and affect the adjustment effect, so the practicability is enhanced.

[0023] Preferably, as in the above embodiment, the adjusting assembly includes two sets of helical gears 11 and a rotating rod 12. A set of helical gears 11 are arranged on the outer right end of the connecting screw 4. A set of reserved holes are arranged on the right side of the front end of the groove of the bed board main body 1, and this set of reserved holes are rotatably connected to the outer side of the rotating rod 12. Another set of helical gears 11 are arranged at the rear end of the rotating rod 12, and this set of helical gears 11 are meshed and clamped with the helical gears 11 on the outer side of the connecting gear. The staff rotates the rotating rod, so that the two sets of helical gears drive the connecting screw to rotate, so that the staff can quickly rotate the connecting screw, so the practicability is enhanced.

[0024] Preferably, as in the above embodiment, the supporting mechanism includes a fixed block 13, a pressing plate 14 and a buffer assembly. The right end of the bottom of the second bed body 3 is connected to the top of the fixed block 13. The bottom of the fixed block 13 is slidably sleeved with the top of the pressing plate 14 through the buffer assembly. The bottom of the pressing plate 14 is closely attached to the top right end of the bed board main body 1. When the second bed body is laid flat, through the pressing plate being closely attached to the top of the bed board main body, an effective supporting effect can be provided for the second bed body, so the practicability is enhanced.

[0025] Preferably, as in the above embodiment, the buffer assembly includes multiple damping rods 15 and multiple connecting springs 16. A groove is arranged at the bottom of the fixed block 13. The top of the groove of the fixed block 13 is evenly connected to the top of the multiple damping rods 15, and the top of the pressing plate 14 is connected to the bottom of the multiple damping rods 15. A set of connecting springs 16 are respectively arranged on the outer sides of the multiple damping rods 15, and the top of the pressing plate 14 is slidably sleeved with the groove of the fixed block 13. The multiple damping rods and the connecting springs can expand and contract, which can reduce the acting force generated by extrusion and the like, so the practicability is enhanced.

[0026] Preferably, as in the above embodiment, it further includes a turntable 17. The front end of the rotating rod 12 is connected to the rear end of the turntable 17. It can enable the staff to quickly rotate the turntable, so the practicability is enhanced.

[0027] Preferably, as in the above embodiment, it further includes a sponge pad 18. The bottom of the pressing plate 14 is connected to the top of the sponge pad 18, and the bottom of the sponge pad 18 is closely attached to the top right end of the bed board main body 1. It can effectively reduce the damage to the bed board main body caused by extrusion and friction, so the practicability is enhanced.

[0028] An adjustable backrest structure for a sleeping berth of a rail vehicle according to the present utility model has the following working principle. First, the user rotates the rotating rod through the turntable, so that two groups of helical gears drive the connecting screw rod to rotate, causing the connecting block to drive the connecting plate to slide through the positioning block. And through the second hinge seat and the support rod being hinged, the second bed body is angle-adjusted through the first hinge seat until it is adjusted to a suitable angle for the user.

[0029] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] In the present utility model, the "first", "second", "third" do not represent specific quantities and sequences, but are only used for name distinction.

[0031] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art of the present technology, without departing from the technical principle of the present utility model, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An adjustable backrest structure for a sleeping berth of a rail vehicle, comprising a bed board main body (1) and a first bed body (2), wherein the left end of the top of the bed board main body (1) is connected to the bottom of the first bed body (2), and it is characterized in that, It further includes a second bed body (3), a connecting screw rod (4), a connecting block (5), a connecting plate (6), two groups of first hinge seats (7), an adjusting assembly, a hinging assembly, a limiting assembly and a supporting mechanism. A groove is provided at the right end of the top of the bed board main body (1). The two ends of the connecting screw rod (4) are respectively rotatably connected to the two ends of the groove of the bed board main body (1). The connecting block (5) is in threaded connection with the connecting screw rod (4), and the bottom of the connecting block (5) is slidably in close contact with the bottom of the groove of the bed board main body (1). The front and rear ends of the groove of the bed board main body (1) are respectively slidably in close contact with one end of the connecting plate (6) through the limiting assembly. The bottom of the connecting plate (6) is connected to the top of the connecting block (5). The left end of the bottom of the second bed body (3) is evenly hinged to the top of the bed board main body (1) through two groups of first hinge seats (7). The top of the connecting plate (6) is hinged to the bottom of the second bed body (3) through the hinging assembly. And the right end of the bottom of the second bed body (3) is in close contact with the top of the bed board main body (1) through the supporting mechanism. An adjusting assembly is provided at the right end of the outer side of the connecting screw rod (4).

2. The adjustable backrest structure for the sleeper of a rail vehicle according to claim 1, characterized in that, The hinging assembly includes four groups of second hinge seats (8) and two groups of supporting rods (9). The top of the connecting plate (6) is evenly hinged to one end of the supporting rods (9) through two groups of second hinge seats (8). The bottom of the second bed body (3) is hinged to the other end of the supporting rods (9) through the other two groups of second hinge seats (8).

3. The adjustable backrest structure for the sleeping berth of a rail vehicle according to claim 2, characterized in that, The limiting assembly includes two groups of positioning blocks (10). One group of sliding grooves are respectively provided at the front and rear ends of the groove of the bed board main body (1). The two groups of positioning blocks (10) are respectively slidably connected to the corresponding group of sliding grooves. The front and rear ends of the connecting plate (6) are respectively connected to one end of the positioning blocks (10).

4. The adjustable backrest structure for the sleeping berth of a rail vehicle according to claim 3, characterized in that, The adjusting assembly includes two groups of helical gears (11) and a rotating rod (12). One group of helical gears (11) is provided on the outer side of the right end of the connecting screw rod (4). One group of reserved holes is provided on the right side of the front end of the groove of the bed board main body (1), and the rotating rod (12) is rotatably connected to the outer side of the reserved holes. Another group of helical gears (11) is provided at the rear end of the rotating rod (12), and this group of helical gears (11) is meshed and clamped with the helical gears (11) on the outer side of the connecting gear.

5. The adjustable backrest structure for the sleeping berth of a rail vehicle according to claim 4, characterized in that, The supporting mechanism includes a fixed block (13), a pressing plate (14) and a buffering assembly. The right end of the bottom of the second bed body (3) is connected to the top of the fixed block (13). The bottom of the fixed block (13) is slidably sleeved with the top of the pressing plate (14) through the buffering assembly. The bottom of the pressing plate (14) is in close contact with the right end of the top of the bed board main body (1).

6. The adjustable backrest structure for a sleeper of a rail vehicle according to claim 5, characterized in that, The buffering assembly includes multiple groups of damping rods (15) and multiple groups of connecting springs (16). A groove is provided at the bottom of the fixed block (13). The top of the groove of the fixed block (13) is evenly connected to the tops of multiple groups of damping rods (15). And the top of the pressing plate (14) is connected to the bottoms of multiple groups of damping rods (15). One group of connecting springs (16) is respectively provided on the outer sides of multiple groups of damping rods (15), and the top of the pressing plate (14) is slidably sleeved with the groove of the fixed block (13).

7. The adjustable backrest structure for the sleeping berth of a rail vehicle according to claim 6, wherein, It further includes a turntable (17). The front end of the rotating rod (12) is connected to the rear end of the turntable (17).

8. The adjustable backrest structure for the sleeping berth of a rail vehicle according to claim 7, characterized in that, It further includes a sponge pad (18). The bottom of the pressing plate (14) is connected to the top of the sponge pad (18), and the bottom of the sponge pad (18) is in close contact with the right end of the top of the bed board main body (1).

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