CN213640292U

CN213640292U - Adjustable bed backrest

Info

Publication number: CN213640292U
Application number: CN202020978877.9U
Authority: CN
Inventors: 周学蒙; 周嘉宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-07-09
Anticipated expiration: 2030-06-02

Abstract

An adjustable bed back, comprising: a bed back panel, which is vertically installed with the mattress panel; the fixed bracket is fixed on the upper section of the bed back panel; the bed back cushion component is arranged in front of the bed back panel, and the upper end of the bed back cushion component is coaxially hinged with the fixed bracket; the anti-skidding seat cushion is positioned below the bed back cushion component and above the mattress plate; the front-back swinging mechanism is arranged between the bed back rear plate and the bed back cushion assembly, and the bed back cushion assembly is arranged on the front-back swinging mechanism; the upper and lower telescopic mechanisms are connected to the front and rear swinging mechanisms, the bottom ends of the upper and lower telescopic mechanisms are hinged with the anti-skid cushion, and the upper and lower telescopic mechanisms are used for stretching and furling the anti-skid cushion; and the limiting and adjusting mechanism is arranged between the front and back swinging mechanism and the bed back cushion assembly. When the bed backrest is adjusted, the bed back panel is kept fixed, only the bed backrest cushion assembly is adjusted, the bed backrest cushion assembly is convenient to mount and dismount, and the adjustable bed backrest is wider in application.

Description

Adjustable bed backrest

Technical Field

The utility model relates to a bed back especially relates to a bed back with adjustable.

Background

The bed is the main furniture necessary for each family, the main function of the bed is sleeping, therefore, the structure of the common bed is a fixed structure, and the headboard and the bed surface form a right angle. People are used to lie on the bed to read the television, lean against the bed backrest, and if lean against the bed backrest in a right-angle posture, people feel uncomfortable, and only need to pad a pillow or a back cushion, which is very inconvenient and needs the bed backrest to have a certain inclination angle.

Different people lean on the corresponding lumbar vertebra part and the headrest part on the bed backrest, the comfort levels of different people are different, and when a general human body leans against the bed backrest in an inclined way, the human body always easily slides downwards, so that the human body is forced to lean against the bed backrest. Thus, the prior art is yet to be improved and enhanced.

Disclosure of Invention

To the deficiencies of the prior art, the utility model aims to provide a bed backrest with adjustable, which makes the comfort level of leaning on better.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: an adjustable bed back, comprising:

a bed back panel, which is vertically installed with the mattress panel;

the fixed bracket is fixed on the upper section of the bed back panel;

the bed back cushion component is arranged in front of the bed back panel, and the upper end of the bed back cushion component is coaxially hinged with the fixed bracket;

the anti-skidding seat cushion is positioned below the bed back cushion component and above the mattress plate;

the front-back swinging mechanism is arranged between the bed back rear plate and the bed back cushion assembly, and the bed back cushion assembly is arranged on the front-back swinging mechanism and is used for swinging an included angle between the bed back cushion assembly and the bed back rear plate;

the upper and lower telescopic mechanisms are connected to the front and rear swinging mechanisms, the bottom ends of the upper and lower telescopic mechanisms are hinged with the anti-skidding cushion, and the upper and lower telescopic mechanisms are used for adjusting the forward extension of the anti-skidding cushion;

and the limiting and adjusting mechanism is arranged between the front-back swinging mechanism and the bed back cushion assembly and is used for positioning and adjusting the bed back cushion assembly up and down.

Further, the front and back swing mechanism includes swing board and first push rod, the upper end and the fixed bolster of swing board are articulated, the lower extreme of swing board is connected with the one end of first push rod, the other end erection joint of first push rod is on the bed back of the body board, first push rod is used for promoting swing board around the articulated shaft front and back upset.

Furthermore, the up-down telescopic mechanism comprises a second push rod, a ball sleeve and a telescopic sliding rod, the ball sleeve is fixed on two side edges of the swinging plate, the telescopic sliding rod is sleeved in the ball sleeve on each side, one end of the second push rod is connected to the upper end of the telescopic sliding rod, the other end of the second push rod is fixed on the swinging plate, and the bottom end of the telescopic sliding rod is connected to the anti-skidding cushion.

Further, spacing adjustment mechanism includes rack and spacing support, the upper end of rack is fixed in the swing board upper end, and the lower extreme at the swing board is fixed to the lower extreme of rack, from the top down is equipped with continuous spacing tooth on the rack, spacing tooth sets up towards the back of the bed cushion subassembly, spacing support card is established on spacing tooth, and can follow the spacing tooth on the rack and stir from top to bottom.

Further, anti-skidding cushion includes cushion front bezel, cushion medium plate and cushion back plate, mattress board top is arranged in to cushion medium plate level, the cushion front bezel is connected with the upset of cushion medium plate, the upset of cushion front bezel draws in back and bedback cushion subassembly bottom joint in, its bottom surface keeps level with the cushion medium plate after the cushion front bezel extends completely, and the top surface of cushion front bezel heels the slant forward and sets up, the one end of cushion back plate and the bottom fixed connection of flexible litter, the other end is connected with the cushion medium plate, the cushion back plate is the L type and bends the setting.

Further, the back of bed cushion subassembly is including leaning on board, elastic layer and superficial layer, lean on the board setting in the place ahead of swing board, and cover the swing board, lean on the board on be equipped with towards spacing support with spacing leg joint's lug, lean on the upper end of board and the most base that leans on before of fixed bolster offset, the elastic layer covers on the front surface of leaning on the board, the protruding upper end that leans on the board of upper segment of elastic layer extends along the fixed bolster to the top surface of the fixed bolster of orientation is buckled, forms half package fixed bolster's structure, the superficial layer covers on the surface of elastic layer.

Further, the bed back cushion assembly corresponds human back design, and the upper segment of bed back cushion assembly is straight, and the hypomere of bed back cushion assembly corresponds the lumbar vertebrae position and is forward bellied arc, be equipped with the recess that is used for the cushion front bezel after the joint draws in on the bottom of bed back cushion assembly.

Further, be equipped with bar through-hole and liftout plate on the arc section of leaning on the board corresponding lumbar vertebrae portion, install on the bar through-hole and be used for assisting the cam subassembly of finely tuning lumbar vertebrae protrusion height, the liftout plate just is connected with cam subassembly contact with leaning on board swing joint.

Further, the cam component comprises a rotating shaft, and is sequentially sleeved with an adjusting wheel, an one-way limiting gear and an eccentric wheel, wherein a wheel shell is arranged at the periphery of the one-way limiting gear, a locking elastic plate is arranged on the wheel shell, a locking end of the locking elastic plate faces to a tooth groove of the one-way limiting gear, the wheel shell is fixed on the back face of the leaning plate, and a wheel face of the eccentric wheel protrudes out of the strip-shaped through hole and is in contact with the ejection plate all the time.

Furthermore, an auxiliary spring is connected between the upper section of the bed back rest plate component and the swing plate, and an auxiliary headrest which can be adjusted in an up-and-down mode is arranged on the upper section of the bed back rest plate component close to the head.

Compared with the prior art, the method has the advantages that: 1. the bed back cushion assembly is only adjusted, so that the mode of integrally adjusting the bed back cushion in the prior art is changed, the bed back cushion and the bed cushion plate are independent, the bed back cushion assembly is convenient to mount and dismount, and the adjustable bed back cushion is wider in application;

2. the bed back cushion assembly can not only adjust the leaning inclination through the front-back swing mechanism and the limiting adjusting mechanism, but also finely adjust the height of the waist bulge through the part of the cam assembly corresponding to the lumbar of the human body, so that the comfort of the human body is higher when leaning;

3. the foldable and storable anti-slip seat cushion is added at the bottom of the bed back cushion component to prevent the human body from sliding downwards when leaning; and an inclined upward included angle is formed between the anti-skidding cushion and the mattress plate after the anti-skidding cushion is stretched, so that the human body is further prevented from sliding downwards.

4. The utility model discloses can carry out regulation control through electronic, manual or electronic and manual combination, make the regulation mode more diversified, convenience of customers carries out the shopping according to actual cost.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a schematic view of the adjustable backrest of the present embodiment (in combination with the mattress plate in a collapsed state);

FIG. 2 is an exploded view of an adjustable bed back of the present embodiment;

FIG. 3 is an exploded view of the cam assembly of this embodiment;

fig. 4 is a schematic view of the unfolded state of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example (b):

see fig. 1, 2 and 4: the adjustable bed back provided by the embodiment comprises a bed back panel 1, a fixed support 2, a bed back cushion component 3, an anti-skidding cushion 4, a front-back swing mechanism 5, an up-down telescopic mechanism 6 and a limiting adjusting mechanism 7, wherein the bed back panel 1 and a bed cushion plate 8 are vertically installed; the fixed bracket 2 is fixed on the upper section of the bed back plate 1; the bed back cushion component 3 is arranged in front of the bed back panel 1, and the upper end of the bed back cushion component 3 is coaxially hinged with the fixed support 2; the anti-skid seat cushion 4 can be unfolded and folded, and the anti-skid seat cushion 4 is positioned below the bed back cushion component 3 and above the bed cushion plate 8 after being folded to form a downward extending leaning surface of the bed back cushion component 3; the front-back swinging mechanism 5 is arranged between the bed back plate 1 and the bed back cushion component 3, and the bed back cushion component 3 is arranged on the front-back swinging mechanism 5 and is used for adjusting the included angle between the bed back cushion component 3 and the bed back plate 1; the up-down telescopic mechanism 6 is connected to the front-back swing mechanism 5, the bottom end of the up-down telescopic mechanism is hinged with the anti-skid cushion 4, and the up-down telescopic mechanism 6 is used for adjusting the forward extension of the anti-skid cushion 4; the limiting and adjusting mechanism 7 is arranged between the front and back swing mechanism 5 and the bed back cushion component 3 and is used for positioning and adjusting the bed back cushion component 3 up and down.

In this embodiment, the inclination of the bed back cushion assembly 3 is adjusted by the forward and backward swinging mechanism 5, the forward extending length of the anti-slip seat cushion 4 is adjusted by the up-down telescopic mechanism 6, and the height of the bed back cushion assembly 3 is adjusted up and down by the limit adjusting mechanism 7, so that the height of the bed back cushion assembly 3 relative to the lumbar vertebra of the human body is adjusted.

The front-back swinging mechanism 5 comprises a swinging plate 51 and a first push rod 52, the upper end of the swinging plate 51 is hinged to two ends of the fixed support 2, the lower end of the swinging plate 51 is connected with one end of the first push rod 52, the other end of the first push rod 52 is connected to the bed back panel 1 in an installing mode, the first push rod 52 is a telescopic push rod, the swinging plate 51 is controlled to swing around a hinge shaft through the front-back stretching of the first push rod 52, the included angle between the swinging plate 51 and the bed back panel 1 is adjusted, and therefore the purpose of adjusting the inclination of the bed cushion assembly 3 is achieved. In this embodiment, the two ends of the lower bottom edge of the swing plate 51 are both connected with the first push rods 52, and the two first push rods 52 are symmetrically arranged relative to the swing plate 51, so that the two first push rods 52 operate synchronously, the two first push rods 52 are controlled synchronously in a unified manner, and preferably, the first push rods 52 are electric push rods, so as to facilitate subsequent unified control.

The up-down telescopic mechanism 6 includes a second push rod 61, a ball sleeve 62 and a telescopic slide rod 63, the ball sleeve 62 is fixed on both sides of the swing plate 51, the telescopic slide rod 63 is sleeved in the ball sleeve 62 on each side, one end of the second push rod 61 is connected to the upper end of the telescopic slide rod 63, the other end of the second push rod 61 is fixed on the swing plate 51, and the bottom end of the telescopic slide rod 63 is connected to the anti-slip seat cushion 4. In this embodiment, the telescopic sliding rods 63 on both sides are fixedly connected through the parallel push plate 64, one end of the second push rod 61 is connected to the middle of the parallel push plate 64, so as to keep the synchronous extension and retraction of the telescopic sliding rods 63 on both sides, the second push rod 61 pushes the telescopic sliding rods 63 to extend and retract up and down in the ball sleeve 62, when the anti-slip seat cushion 4 extends downwards, the anti-slip seat cushion 4 gradually extends forwards, and when the anti-slip seat cushion extends upwards, the anti-slip seat cushion 4 gradually retracts backwards.

The limiting adjusting mechanism 7 comprises a rack 71 and a limiting support 72, the upper end of the rack 71 is fixed at the upper end of the swinging plate 51, the lower end of the rack 71 is fixed at the lower end of the swinging plate 51, continuous limiting teeth are arranged on the rack 71 from top to bottom and face the bed back cushion assembly 3, and the limiting support 72 is clamped on the limiting teeth and can be shifted up and down along the limiting teeth on the rack 71. Bed back cushion subassembly 3 is connected with spacing support 72, when the upper and lower position of needs regulation bed back cushion subassembly 3, with bed back cushion subassembly 3 forward pull-up to spacing support 72 from going the tooth's socket that breaks away from spacing tooth, can easily adjust the upper and lower height of bed back cushion subassembly, when confirming the height-adjusting, relax bed back cushion subassembly 3 for bed back cushion subassembly 3 is automatic to fall into the spacing tooth's socket that corresponds and forms the position locking.

Above-mentioned anti-skidding cushion 4 includes cushion front bezel 41, cushion medium plate 42 and

cushion back plate

43, 8 tops in the mattress board are arranged in to cushion medium plate 42 level, cushion front bezel 41 is connected with the upset of cushion medium plate 42, cushion front bezel 41 overturns and draws in back and 3 bottom joints of back of the bed cushion subassembly, its bottom surface keeps level with cushion medium plate 42 after cushion front bezel 41 extends completely, the top surface of cushion front bezel 41 heels the slant upwards setting forward, the one end of cushion back plate 43 and the bottom fixed connection of flexible litter 63, the other end is connected with cushion medium plate 42, cushion back plate 43 is the L type and bends the setting. The cushion back plate 43 is L-shaped and is bent for better linking with the telescopic sliding rod 63, the vertical part of the L-shaped cushion back plate 43 is used as the extension of the telescopic sliding rod, the transverse part is used for better pushing out the cushion middle plate 42 forwards, and similarly, the telescopic sliding rod 63 contracts to drive the cushion back plate 43 to lift the cushion middle plate 42, so that the cushion middle plate 42 is formed to move backwards, and the cushion front plate 41 is formed into an upward tilted inclined plane after being extended to prevent a human body from sliding downwards when leaning against the bed back cushion component 3. An angle adjustment is arranged on a turning shaft connected between the cushion front plate 41 and the cushion middle plate 42, and the extending angle of the cushion front plate 41 relative to the cushion middle plate 42 can be adjusted according to the requirement.

The backrest cushion assembly 3 comprises a leaning plate 31, an elastic layer 32 and a surface layer 33, wherein the leaning plate 31 is arranged in front of the swinging plate 51 and covers the swinging plate 51, a lug 310 connected with the limiting bracket 72 is arranged on the leaning plate 31 towards the limiting bracket 72, the upper end of the leaning plate 31 is abutted against the foremost bottom edge of the fixed bracket 2, the elastic layer 32 covers the front surface of the leaning plate 31, the upper end of the elastic layer 32 protrudes out of the leaning plate 31 and extends along the fixed bracket 2, the upper end of the fixed bracket 2 is bent towards the top surface of the fixed bracket 2, a structure of the half-wrapped fixed bracket 2 is formed, and the surface layer 33 covers the surface of the elastic layer 32. The leaning plate 31 is mainly used for supporting the back of a human body, the elastic layer 32 enables the human body to be more comfortable when leaning on and can be more fit with the curve of the back of the human body, and the surface layer 33 is used as a surface layer for preventing dust.

Preferably, the bed back cushion component 3 is designed corresponding to the back of a human body, the upper section of the bed back cushion component 3 is straight, the lower section of the bed back cushion component 3 is in an arc shape protruding forwards corresponding to the lumbar vertebra, so that the bed back cushion component more accords with human engineering and the natural shape of the spine, a groove 34 used for clamping the front cushion plate 41 after being folded is arranged at the bottom end of the bed back cushion component 3, and the groove 34 is designed in an inner fillet, so that the anti-skid cushion 4 can be conveniently stretched, unfolded and clamped and folded.

Preferably, the leaning plate 31 is provided with a strip-shaped through hole 320 and an ejecting plate 330 on the arc-shaped section corresponding to the lumbar vertebra part, the strip-shaped through hole 320 is provided with a cam assembly 9 for assisting in fine adjustment of the protrusion height of the lumbar vertebra, and the ejecting plate 330 is movably connected with the leaning plate 31 and is in contact connection with the cam assembly 9. The cam component 9 assists in fine adjustment of the height of the protrusion of the lumbar region.

Preferably, as shown in fig. 3, the cam assembly 9 includes a rotating shaft 91, an adjusting wheel 92, a one-way limiting gear 93 and an eccentric wheel 94 sleeved on the rotating shaft 91 in sequence, a wheel housing 95 is disposed on the periphery of the one-way limiting gear 93, a locking elastic plate 96 is disposed on the wheel housing 95, a locking end of the locking elastic plate 96 faces a tooth groove of the one-way limiting gear 93, the wheel housing 95 is fixed on the back surface of the leaning plate 31, and a wheel surface of the eccentric wheel 94 protrudes out of the strip-shaped through hole 320 and is in contact with the ejecting plate 330 all the time. The height of the protrusion of the lumbar region is finely adjusted by driving the eccentric wheel 94 to rotate so as to adjust the height of the protrusion of the ejector plate 330. The one-way limiting gear 93 is used for shifting the positioning eccentric wheel 94, and the positioning of the eccentric wheel 94 is locked through locking between a tooth groove of the one-way limiting gear 93 and the tooth locking elastic plate 96.

Preferably, an auxiliary spring 35 is connected between the upper section of the backrest plate assembly 3 and the swing plate 51, and an auxiliary headrest 36 which can be adjusted up and down is arranged on the upper section of the backrest plate assembly 3 near the head.

In this embodiment, the control of adjustment is fully automatic, and through embedding the PLC module, the control button through controlling corresponding step carries out automated control, also can provide on this basis and implant the acoustic control module, increases service function such as memory gear module, facilitates the use, and in order to practice thrift manufacturing cost, also can carry out full manual control.

The adjustable bed back that this embodiment provided keeps the fixed of bed back backplate motionless when adjusting the bed back, has only adjusted the bed back cushion subassembly, has changed the mode of bed back overall adjustment among the prior art, makes bed back and bed backing plate be two independent parts, easy to assemble and dismantlement, makes this kind of adjustable bed back use wider.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An adjustable bed back, comprising:

a bed back panel, which is vertically installed with the mattress panel;

the fixed bracket is fixed on the upper section of the bed back panel;

2. The adjustable backrest of claim 1, wherein the forward-backward swinging mechanism comprises a swinging plate and a first push rod, the upper end of the swinging plate is hinged with the fixed bracket, the lower end of the swinging plate is connected with one end of the first push rod, the other end of the first push rod is installed and connected on the back plate of the bed, and the first push rod is used for pushing the swinging plate to turn back and forth around the hinged shaft.

3. The adjustable bed backrest as claimed in claim 2, wherein the up-down telescopic mechanism comprises a second push rod, a ball sleeve and a telescopic sliding rod, the ball sleeve is fixed on two side edges of the swing plate, the telescopic sliding rod is sleeved in the ball sleeve on each side, one end of the second push rod is connected to the upper end of the telescopic sliding rod, the other end of the second push rod is fixed on the swing plate, and the bottom end of the telescopic sliding rod is connected to the anti-slip seat cushion.

4. The adjustable bed backrest as claimed in claim 3, wherein the limit adjusting mechanism comprises a rack and a limit bracket, the upper end of the rack is fixed on the upper end of the swing plate, the lower end of the rack is fixed on the lower end of the swing plate, the rack is provided with continuous limit teeth from top to bottom, the limit teeth are arranged towards the bed backrest cushion assembly, and the limit bracket is clamped on the limit teeth and can be shifted up and down along the limit teeth on the rack.

5. The adjustable bed back of claim 4, wherein the anti-slip cushion comprises a cushion front plate, a cushion middle plate and a cushion rear plate, the cushion middle plate is horizontally arranged above the mattress plate, the cushion front plate is connected with the cushion middle plate in an overturning manner, the cushion front plate is clamped with the bottom end of the bed back cushion assembly after being overturned and folded, the bottom surface of the cushion front plate is flush with the cushion middle plate after being completely extended, the top surface of the cushion front plate is inclined upwards forwards, one end of the cushion rear plate is fixedly connected with the bottom end of the telescopic sliding rod, the other end of the cushion rear plate is connected with the cushion middle plate, and the cushion rear plate is bent in an L shape.

6. The adjustable backrest of claim 5, wherein the backrest cushion assembly comprises a rest plate, an elastic layer and a surface layer, the rest plate is arranged in front of the swing plate and covers the swing plate, the rest plate is provided with a lug connected with the limit bracket towards the limit bracket, the upper end of the rest plate is abutted against the front bottom edge of the fixed bracket, the elastic layer covers the front surface of the rest plate, the upper section of the elastic layer protrudes out of the upper end of the rest plate and extends along the fixed bracket, and is bent towards the top surface of the fixed bracket to form a half-wrapped fixed bracket structure, and the surface layer covers the surface of the elastic layer.

7. The adjustable bed back as claimed in claim 6, wherein the bed back cushion assembly is designed to correspond to the back of a human body, the upper section of the bed back cushion assembly is straight, the lower section of the bed back cushion assembly is in an arc shape protruding forwards corresponding to the lumbar vertebra, and a groove for clamping the front plate of the folded cushion is formed in the bottom end of the bed back cushion assembly.

8. The adjustable backrest of claim 7, wherein the arc-shaped section of the leaning plate corresponding to the lumbar vertebra is provided with a strip-shaped through hole and an ejecting plate, the strip-shaped through hole is provided with a cam assembly for assisting in fine adjustment of the protrusion height of the lumbar vertebra, and the ejecting plate is movably connected with the leaning plate and is in contact connection with the cam assembly.

9. The adjustable bed backrest as claimed in claim 8, wherein the cam assembly comprises a rotating shaft, an adjusting wheel, a one-way limiting gear and an eccentric wheel which are sequentially sleeved on the rotating shaft, a wheel housing is arranged at the periphery of the one-way limiting gear, a locking elastic plate is arranged on the wheel housing, a locking end of the locking elastic plate faces a tooth groove of the one-way limiting gear, the wheel housing is fixed on the back surface of the leaning plate, and a wheel surface of the eccentric wheel protrudes out of the strip-shaped through hole and is in contact with the ejecting plate all the time.

10. The adjustable backrest of claim 9, wherein an auxiliary spring is connected between the upper section of the backrest plate assembly and the swing plate, and an auxiliary headrest which can be adjusted up and down is arranged on the upper section of the backrest plate assembly near the head.