CN211795441U

CN211795441U - Sofa bed with telescopic backrest

Info

Publication number: CN211795441U
Application number: CN202020157714.4U
Authority: CN
Inventors: 罗海龙
Original assignee: Jiangxi Tuantuanyuan Furniture Co ltd
Current assignee: Jiangxi Tuantuanyuan Furniture Co ltd
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2020-10-30
Anticipated expiration: 2030-02-10

Abstract

The utility model discloses a sofa bed with a telescopic backrest, include: bed board, a back, No. two backs, adjusting part and spacing subassembly, the supporting leg is all installed to the bottom four corners department of bed board, just No. one the back is the slope form and sets up in head end one side of bed board, the chamber is placed to inside having seted up of a back, No. two the back bearing cover is inside a back, just No. two the back inlays to be established and places the intracavity, adjusting part installs and places intracavity portion both sides, spacing subassembly matches and installs on adjusting part. The utility model has the advantages of simple overall structure, the simple operation through being equipped with adjusting part, and the drive that can be stable No. two backs reciprocate placing intracavity portion to what can be stable carries out quick regulation processing to the device is whole, has guaranteed the whole result of use of device, whole simple operation.

Description

Sofa bed with telescopic backrest

Technical Field

The utility model relates to a household articles field specifically is a sofa bed with telescopic backrest.

Background

The sofa bed is dual-purpose furniture capable of being used as a sofa and a bed, modern living rooms are highly appreciated and concise, multifunctional furniture is more and more popular, the sofa bed is just one of the furniture, in small-sized living rooms, in order to meet occasional visitor living needs, one sofa bed is necessary, the traditional sofa bed is often large in overall limitation when in use, and the overall wrapping rate of the backrest of the sofa bed cannot be synchronously adjusted according to people using the sofa bed.

The prior art has the following defects: traditional sofa bed in use, often whole limitation is great, and the whole parcel rate of sofa bed back can't carry out synchronous regulation according to using the crowd and handling, has reduced the whole result of use of device, often when needs are adjusted the back, can't be synchronous quick carry out stable regulation to sofa bed's back and handle, has reduced whole experience and has felt, and the result of use is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back telescopic sofa bed to solve traditional sofa bed in use, often whole limitation is great, and the whole parcel rate of sofa bed back can't carry out synchronous regulation according to using the crowd and handle, has reduced the whole result of use of device, often when needs are adjusted the back, can't be synchronous quick carry out stable regulation processing scheduling problem to sofa bed's back.

In order to achieve the above object, the utility model provides a following technical scheme: a sofa sleeper with a retractable backrest, comprising: bed board, a back, No. two backs, adjusting part and spacing subassembly, the supporting leg is all installed to the bottom four corners department of bed board, just No. one the back is the slope form and sets up in head end one side of bed board, the chamber is placed to inside having seted up of a back, No. two the back bearing cover is inside a back, just No. two the back inlays to be established and places the intracavity, adjusting part installs and places intracavity portion both sides, spacing subassembly matches and installs on adjusting part.

Preferably, the adjusting part includes two sets of drive racks, two sets of drive gear, two sets of gangbar and two sets of rolling discs, and is two sets of the both sides wall at No. two backs is installed to the drive rack, and is two sets of drive gear installs and places intracavity portion both sides, just drive gear's end department is connected with drive rack meshing, and is two sets of the gangbar passes a back installation, just the one end and the drive gear of gangbar are connected, and are two sets of the rolling disc is installed at the other end of gangbar, and No. two backs of drive that can be stable are placing intracavity portion and are reciprocating to can be stable carry out quick regulation to the device is whole to be handled, guaranteed the whole result of use of device.

Preferably, the position where the linkage rod is contacted with the first backrest is connected through a bearing, and the linkage rod is made of stainless steel.

Preferably, spacing subassembly includes gag lever post, locating plate, expanding spring and a plurality of group's location slotted hole, the gag lever post passes the installation of rolling disc top, the fixed cover of locating plate is established in the outside of gag lever post, expanding spring installs between locating plate and rolling disc, just expanding spring overlaps and establishes in the gag lever post outside, a plurality of groups the location slotted hole is evenly seted up at a back lateral wall, and the head end of drive gag lever post that can be stable and the location slotted hole block of a back lateral wall avoid the rolling disc to take place the situation of idle running and take place.

Preferably, the head end of the limiting rod is connected with the positioning slot hole in a clamping manner, and a plurality of groups of the positioning slot holes are distributed on the side wall of the first backrest in a circular ring shape.

Preferably, still include the guide part, the guide part has two sets of guide bars, two sets of direction slide rails, and is two sets of the guide bar is fixed to be set up and is placing chamber bottom both sides, and is two sets of the inside both sides of No. two backs are seted up to the direction slide rail, and is two sets of the end department and the direction slide rail inner wall slip block of guide bar are connected to can be stable carry out the direction processing to the removal of No. two backs, avoid taking place the situation of dislocation at the in-process of regulation, improved the stability of overall regulation.

The utility model provides a sofa bed with a telescopic backrest, which has the following beneficial effects:

(1) the utility model discloses a be equipped with adjusting part, utilize the linkage rod can be stable drive gear to carry out the rotation of syntropy and handle, utilize drive gear and drive rack's meshing effect down simultaneously, can be stable drive No. two backs reciprocating placing the intracavity portion to what can be stable carries out quick regulation to the device is whole to be handled, has guaranteed the whole result of use of device, whole simple operation.

(2) The utility model discloses a be equipped with spacing subassembly, when having used up the rolling disc, under expanding spring's elastic action, the head end of drive gag lever post that can be stable and the positioning slot hole block of a back lateral wall, avoid the rolling disc to take place the situation of idle running and take place, simultaneously through being equipped with the guide part, utilize two sets of guide bars at the inside slip of two sets of direction slide rails to can be stable carry out the direction processing to the removal of No. two backs, avoid taking place the situation of dislocation at the in-process of regulation, improved the stability of overall regulation.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic structural view of the adjusting assembly of the present invention;

FIG. 3 is a schematic structural view of the limiting assembly of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a bed board; 2. a first backrest; 3. a second backrest; 4. supporting legs; 5. a placement chamber; 6. a drive rack; 7. a drive gear; 8. a linkage rod; 9. rotating the disc; 10. a limiting rod; 11. positioning a plate; 12. a tension spring; 13. positioning the slotted hole; 14. a guide bar; 15. and a guide slide rail.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a sofa sleeper with a retractable backrest, comprising: bed board 1, back 2, No. two backs 3, adjusting part and spacing subassembly, the supporting leg 4 is all installed to the bottom four corners department of bed board 1, just No. one back 2 is the slope form and sets up in head end one side of bed board 1, No. one back 2 is inside to have seted up places chamber 5, No. two back 3 bearing sleeves are inside No. one back 2, just No. two back 3 inlays to be established placing chamber 5 in, adjusting part installs and places 5 inside both sides in chamber, spacing subassembly matches and installs on adjusting part.

Further, the adjusting component comprises two groups of driving racks 6, two groups of driving gears 7, two groups of linkage rods 8 and two groups of rotating discs 9, wherein the two groups of driving racks 6 are arranged on two side walls of the second backrest 3, the two groups of driving gears 7 are arranged on two sides inside the placing cavity 5, the end parts of the driving gears 7 are meshed with the driving racks 6, the two groups of linkage rods 8 penetrate through the first backrest 2 for installation, one end of each linkage rod 8 is connected with the driving gears 7, the two groups of rotating discs 9 are arranged at the other end of each linkage rod 8, the linkage rods 8 can stably drive the driving gears 7 to rotate in the same direction, and simultaneously, under the meshing action of the driving gears 7 and the driving racks 6, the second backrest 3 can be stably driven to move up and down inside the placing cavity 5, so that the device can be stably and integrally and rapidly adjusted, the integral use effect of the device is ensured, and the integral operation is convenient;

further, the positions where the linkage rod 8 is contacted with the first backrest 2 are connected through bearings, and the linkage rod 8 is made of stainless steel;

further, the limiting assembly comprises a limiting rod 10, a positioning plate 11, an expansion spring 12 and a plurality of groups of positioning groove holes 13, the limiting rod 10 penetrates through the top end of the rotating disc 9 to be installed, the positioning plate 11 is fixedly sleeved outside the limiting rod 10, the expansion spring 12 is installed between the positioning plate 11 and the rotating disc 9, the expansion spring 12 is sleeved outside the limiting rod 10, the plurality of groups of positioning groove holes 13 are uniformly formed in the side wall of the first backrest 2, and when the rotating disc 9 is used, the head end of the limiting rod 10 can be stably driven to be clamped with the positioning groove holes 13 in the side wall of the first backrest 2 under the elastic action of the expansion spring 12, so that the rotating disc 9 is prevented from idling;

furthermore, the head end of the limiting rod 10 is connected with a positioning slot hole 13 in a clamping manner, and a plurality of groups of positioning slot holes 13 are distributed on the side wall of the first backrest 2 in a circular ring shape;

further, still include the guide part, the guide part has two sets of guide bars 14, two sets of direction slide rail 15, and is two sets of 5 bottom both sides in chamber are being placed in fixed the setting of guide bar 14, and are two sets of direction slide rail 15 sets up in the inside both sides of No. two backs 3, and is two sets of the end department of guide bar 14 is connected with the slip block of direction slide rail 15 inner wall, utilizes two sets of guide bars 14 at the inside slip of two sets of direction slide rails 15 to can be stable carry out the direction processing to the removal of No. two backs 3, avoid taking place the situation of dislocation at the in-process of adjusting, improved the stability of overall regulation.

The working principle is as follows: when in use, the placing cavity 5 is arranged in the first backrest 2, and the second backrest 3 is slidably sleeved in the first backrest 2, so that the second backrest 3 can be stably adjusted, the telescopic treatment can be stably performed, the using effect of the whole device is improved, the adjusting assembly is arranged, the rotating disc 9 is driven to synchronously rotate, the linkage rod 8 can be used for stably driving the driving gear 7 to perform the same-direction rotating treatment, and simultaneously, the second backrest 3 can be stably driven to vertically move in the placing cavity 5 under the meshing action of the driving gear 7 and the driving rack 6, so that the whole device can be stably and rapidly adjusted, the using effect of the whole device is ensured, the whole operation is convenient and fast, the device is convenient for a worker to use, and meanwhile, the two groups of guide rods 14 are arranged to slide in the two groups of guide slide rails 15 through the guide parts, thereby can be stable carry out the direction processing to the removal of No. two backs 3, avoid taking place the situation of dislocation at the in-process of regulation, the stability of overall regulation has been improved, the whole life of device has been improved, simultaneously through being equipped with spacing subassembly, when having used up the rolling disc 9, under the elastic action of expanding spring 12, the head end of drive gag lever post 10 that can be stable and the positioning slot hole 13 block of No. 2 lateral walls of back, thereby can be stable fix a position fixed rolling disc 9, avoid rolling disc 9 to take place the situation emergence of idle running, the operation is convenient, the holistic stability in use of device has further been strengthened.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sofa sleeper with a retractable backrest, comprising: bed board (1), back (2), No. two backs (3), adjusting part and spacing subassembly, supporting leg (4) are all installed to the bottom four corners department of bed board (1), just back (2) are the slope form and set up in head end one side of bed board (1), chamber (5) have been placed to inside having seted up of back (2), No. two back (3) bearing housing is inside No. one back (2), just No. two back (3) inlay to be established in placing chamber (5), adjusting part installs and places the inside both sides in chamber (5), spacing subassembly matches and installs on adjusting part.

2. The sofa sleeper of claim 1, wherein the back rest is retractable: the adjusting part comprises two sets of driving racks (6), two sets of driving gears (7), two sets of linkage rods (8) and two sets of rotating discs (9), and is two sets of the driving racks (6) are installed on two side walls of a second backrest (3) and are two sets of the driving gears (7) are installed on two inner sides of a placement cavity (5) and are connected with the driving racks (6) in a meshed mode, and the linkage rods (8) penetrate through the first backrest (2) to be installed, and one ends of the linkage rods (8) are connected with the driving gears (7) and are two sets of the rotating discs (9) are installed at the other ends of the linkage rods (8).

3. The sofa sleeper of claim 2, wherein the back rest is retractable: the linkage rod (8) is connected with the first backrest (2) through a bearing, and the linkage rod (8) is made of stainless steel.

4. The sofa sleeper of claim 1, wherein the back rest is retractable: spacing subassembly includes gag lever post (10), locating plate (11), expanding spring (12) and a plurality of group's positioning groove hole (13), gag lever post (10) pass rolling disc (9) top installation, the outside at gag lever post (10) is established to locating plate (11) fixed cover, expanding spring (12) are installed between locating plate (11) and rolling disc (9), just expanding spring (12) cover is established in gag lever post (10) outside, a plurality of groups positioning groove hole (13) are evenly seted up No. one back (2) lateral wall.

5. The sofa sleeper of claim 4, wherein the back rest is retractable: the head end of the limiting rod (10) is connected with the positioning slotted hole (13) in a clamping mode, and the plurality of groups of positioning slotted holes (13) are distributed on the side wall of the first backrest (2) in a circular ring mode.

6. The sofa sleeper of claim 1, wherein the back rest is retractable: still include the guide part, the guide part has two sets of guide bar (14), two sets of direction slide rail (15), and is two sets of cavity (5) bottom both sides are being placed in fixed setting of guide bar (14), and are two sets of direction slide rail (15) are seted up in No. two inside both sides of back (3), and are two sets of the end department and the direction slide rail (15) inner wall sliding block of guide bar (14) are connected.