CN107960780B - Multi-connecting rod type adjustable sofa bed - Google Patents
Multi-connecting rod type adjustable sofa bed Download PDFInfo
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- CN107960780B CN107960780B CN201711311695.5A CN201711311695A CN107960780B CN 107960780 B CN107960780 B CN 107960780B CN 201711311695 A CN201711311695 A CN 201711311695A CN 107960780 B CN107960780 B CN 107960780B
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- rod
- adjusting
- sofa
- backrest
- support rod
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
- A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
- A47C17/17—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
- A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously
- A47C20/10—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously using rods
Abstract
The invention discloses a multi-connecting rod type adjustable sofa bed, which comprises an angle adjusting part, a sofa backrest part, a sofa base part and a sofa pedal part, wherein the angle of a stop plate is changed by pressing down a guide rod positioned at the left side of the sofa bed, so that the guide rod is loosened, the guide rod can freely slide in a supporting rod, and the angle of the sofa bed is adjusted by connecting the sofa backrest part and the sofa pedal part at two ends of the guide rod; the hand adjusting rod is loosened, and the hand adjusting rod is reset under the action of the adjusting spring and the stop plate spring, so that the locking of the guide rod is realized, and the sofa backrest component and the sofa pedal component are positioned. The invention has the advantages of random adjustment of the inclination angles of the backrest and the foot pad, simultaneous adjustment of the back cushion and the foot pad, stable, reliable and compact structure and the like, and has wide practical value in the aspects of use and operation.
Description
Technical Field
The invention relates to the technical field of sofa beds, in particular to a multi-connecting rod type adjustable sofa bed.
Background
The common sofa bed in daily life is through the position of adjusting different draw-in grooves to realize the adjustment of back angle, have the accommodation and be little, simple structure's shortcoming. In recent years, some sofa beds capable of adjusting the backrest and the sofa foot pad are developed, and the foot pad and the backrest can be adjusted simultaneously, but cannot be adjusted separately and continuously.
In patent document of the publication CN 103799752B, a folding sofa bed is disclosed, comprising a window frame, a seat cushion and a backrest, the backrest and the mattress being convertible between a bed state and a sofa state, but the angle between the backrest and the mattress being fixed, the control of multiple angles being not possible.
In the patent document of the authorized publication number CN 205457468U, a foldable sofa is disclosed, which comprises a sofa upper body, a sofa lower body, a sofa connector and a massage device, and has the advantages of simple structure and suitability for popularization, but when the sofa is converted into a single bed from a single person, the operation is inconvenient, and the angle of the sofa upper body cannot be adjusted.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a multi-link type adjustable sofa bed which can realize continuous unfolding adjustment of foot pads and backrests and multi-angle adjustment between the foot pads and the backrests.
In order to achieve the above object, the present invention adopts the following technical scheme:
a multi-link adjustable sofa bed comprises an angle adjusting component, a sofa backrest component, a sofa base component and a sofa pedal component; the angle adjusting component is characterized by comprising a rubber ring, a stop plate, a hand adjusting rod, a stop plate spring, an adjusting spring, a supporting rod, a guide rod, an upper middle connecting shaft and a lower middle connecting shaft;
the stop plate is a plate, a mounting hole is formed in the middle of the stop plate for the guide rod to pass through, a groove and a through hole are formed in the upper portion of the stop plate, the stop plate is hinged to the support rod through the through hole, the lower end of the stop plate is connected with the contact rod, and the stop plate spring is connected with the stop plate through a spring fixing rod;
the hand adjusting device comprises a boss, a guide rod and a contact block which are sequentially connected from top to bottom, the contact block is in an inverted triangle shape, the inclined edge of the contact block is in contact with the contact rod, the guide rod slides on the sliding groove, and the boss is connected with the adjusting spring;
the stop plate spring is a tension spring, and the adjusting spring is a compression spring;
the support rod is a T-shaped rod, support rod through holes are respectively formed in the side surfaces of two ends of a cross rod part of the support rod, the middle connecting shaft at the upper part is hinged with the support rod through holes, rotating grooves are respectively formed in the end surfaces of two ends of the cross rod, a support rod boss and a support rod threaded hole are formed in the central part of the cross rod, the support rod boss is connected with an adjusting spring, and a sliding track is arranged at the vertical part of the support rod;
the guide rod is a long rod, long rod through holes are formed in two ends of the guide rod, and the guide rod penetrates through the sliding track; the middle connecting shaft at the upper part is a long rod; the middle connecting shaft at the lower part is a long rod, and two ends of the middle connecting shaft are hinged with the through holes of the long rod;
the guide rod passes through the rubber ring, and the rubber ring is connected with the stop plate through a stop plate through hole on the stop plate;
the sofa backrest part comprises an adjusting rod, a backrest cushion plate, a neck rest, a connecting spring, a connecting rod and a backrest part supporting rod;
the adjusting rod is a long rod, the upper end of the adjusting rod is provided with an adjusting rod through hole, the middle of the adjusting rod is provided with an adjusting rod boss and is connected with the connecting spring, and the lower end of the adjusting rod is provided with an adjusting groove and is in contact connection with the two ends of the middle connecting shaft at the lower part;
the connecting rod is a long rod, one end of the connecting rod is provided with a connecting hole, and two ends of the connecting rod are respectively hinged with the backrest support rod and the adjusting rod through the connecting hole and the adjusting rod through hole in sequence;
the backrest support rod is a long rod, a backrest support rod through hole is formed in the lower end of the long rod, and the upper middle connecting rod penetrates through the backrest support rod through hole and is embedded into the rotating groove;
the neck rest is connected with a backrest cushion plate, and the backrest cushion plate is connected with a backrest support rod;
the sofa base component comprises a base backing plate, two parallel base support rods, a hand rest and a roller; the two side surfaces of the base backing plate are respectively connected with the middle part of the base support rod, the upper part of the base support rod is connected with the hand rest, and the bottom of the base support rod is provided with the roller; the backing plate is connected with the supporting rod;
the sofa pedal part comprises a pedal part supporting rod, an adjusting slide block, a connecting shaft and a foot plate;
the pedal part supporting rod is a long rod, a T-shaped groove is formed in the middle of the pedal part supporting rod, the adjusting slide block is embedded into the T-shaped groove, through holes of the pedal part supporting rod are formed in two ends of the pedal part supporting rod, one end of the pedal part supporting rod is hinged with two ends of the connecting shaft, and the other end of the pedal part supporting rod is hinged with the upper middle connecting shaft;
the adjusting slide block is a T-shaped slide block, a rotating groove is formed in the middle of the adjusting slide block, two sides of the adjusting slide block are provided with adjusting slide block through holes, and the adjusting slide block is hinged with the guide rod through holes on the guide rod through the adjusting slide block through holes;
the connecting shaft is a long rod;
the foot plate is a thick plate, and a foot plate through hole is formed in the foot plate and is in threaded connection with the pedal part supporting rod;
the adjusting groove consists of a plurality of semicircular grooves which are sequentially arranged and two linear grooves which are distributed on two sides of the semicircular grooves.
The number of the semicircular grooves is distributed according to the actual length requirement.
The roller is a universal wheel and is hinged with the base support rod through a screw hole at the bottom of the base support rod.
Threaded holes are distributed on the backrest backing plate and are connected with the backrest support rod through holes in a threaded mode.
The neck rest is a long plate with a convex block at the upper end and a neck rest threaded hole at the lower end.
The protruding block is cylindrical protruding, can be when people sit just or lie down with the neck contact, satisfy ergonomic design demand.
The connecting spring is a tension spring.
The working principle of the invention is as follows:
when in an extension state, the backrest of the sofa bed falls down horizontally for a certain distance, the pedal of the sofa is tilted up for a certain distance, the stop plate forms a certain angle with the vertical direction, and the handle is at the highest position.
When the sofa backrest and the sofa pedal of the sofa bed need to be adjusted, the angle of the stop plate is changed by pressing down the hand adjusting rod positioned at the left side of the sofa bed, so that the guide rod is loosened, the guide rod can freely slide in the support rod, and the angle of the sofa bed is adjusted by connecting the sofa backrest parts at the two ends of the guide rod with the sofa pedal parts; the hand adjusting rod is loosened, and the hand adjusting rod is reset under the action of the adjusting spring and the stop plate spring, so that the locking of the guide rod is realized, and the sofa backrest component and the sofa pedal component are positioned.
When the force of the adjusting rod is downward, the circular groove on the adjusting groove can obstruct the movement of the contact end of the middle connecting shaft at the lower part, so that the adjusting rod is fixed; when the force of the adjusting rod is upward, the circular grooves on the adjusting grooves can allow the contact end of the lower intermediate connecting shaft to enter the linear grooves to move, so that the contact end of the lower intermediate connecting shaft can be replaced in each circular groove.
The pulley can rotate at multiple angles, so that the sofa bed can move back and forth and left and right.
Compared with the prior art, the invention has the beneficial effects that:
1) The problem that the existing sofa bed cannot be continuously adjusted is solved, the angle can be continuously adjusted by only one operation, the sofa is simple and reliable, and the backrest can be used for adjusting the angle in multiple stages when the sliding rod is fixed, so that the angle adjustment is more diversified.
2) The movement is convenient, and the labor is not wasted during the carrying; the structural design is reasonable, and the comfort of a user on the sofa bed is ensured.
3) The chair has the advantages of simple structure, convenient manufacture, dexterous use, high movement performance, lower cost, stable, reliable and compact whole structure, can be used as a chair or a bed, can be widely applied, and has wide market prospect.
Drawings
Fig. 1 is a perspective view of the invention in a "tightened" state.
Fig. 2 is a perspective view of the present invention in a "lying" position.
Fig. 3 is a schematic view of the structure of the angle adjusting member of the present invention.
Fig. 4 is a schematic view of the structure of the back rest of the sofa of the present invention.
Fig. 5 is a schematic view of the structure of the sofa base member of the present invention.
Fig. 6 is a schematic structural view of the sofa pedal assembly of the present invention.
Fig. 7 is a schematic view of the structure of the adjusting lever of the present invention.
Fig. 8 is a partial exploded view of the angle adjusting member of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the invention is not limited to the following examples.
As shown in fig. 1, an adjustable sofa bed comprises a sofa pedal 4, a sofa base 3, a sofa backrest 2 and an adjusting device 1.
In order to achieve a continuously regulated function:
as shown in fig. 3, the angle adjusting part 1 comprises a rubber ring 1-1, a stop plate 1-2, a hand adjusting rod 1-3, a stop plate spring 1-4, an adjusting spring 1-5, a supporting rod 1-6, a guide rod 1-7, an upper middle connecting shaft 1-8 and a lower middle connecting shaft 1-9;
the stop plate 1-2 is a plate, a mounting hole is formed in the middle of the stop plate, the guide rod 1-7 passes through the mounting hole, a groove 1-2-4 and a through hole 1-2-2 are formed in the upper portion of the stop plate 1-2, the stop plate 1-2 is hinged with the support rod 1-6 through the through hole 1-2-2, the lower end of the stop plate 1-2 is connected with the contact rod 1-2-1, and the stop plate spring 1-4 is connected with the stop plate 1-2 through a spring fixing rod 1-2-3;
the hand adjusting device 1-3 comprises a boss 1-3-1, a guide rod 1-3-3 and a contact block 1-3-2 which are sequentially connected from top to bottom, wherein the contact block 1-3-2 is in an inverted triangle shape, the inclined edge of the contact block contacts with the contact rod 1-2-1, the guide rod 1-3-3 slides on a sliding groove 1-6-4, and the boss 1-3-1 is connected with an adjusting spring 1-5;
the stop plate spring 1-4 is a tension spring, and the adjusting spring 1-5 is a compression spring;
the support rod 1-6 is a T-shaped rod, the side surfaces of the two ends of the cross rod are respectively provided with a support rod through hole 1-6-3, the upper middle connecting shaft 1-8 is hinged with the support rod 1-6 through the support rod through holes 1-6-3,
the end surfaces of the two ends of the cross rod are respectively provided with a rotating groove 1-6-2, the central part of the cross rod is provided with a boss 1-6-6 and a threaded hole 1-6-7, and one boss 1-6-6 is connected with an adjusting spring 1-5; wherein the guide rod 1-7 is a long rod, two ends of the guide rod are provided with through holes 1-7-1, and the guide rod passes through the sliding track 1-6-1; the upper middle connecting shaft 1-8 is a long rod; the middle connecting shaft 1-9 at the lower part is a long rod, and two ends of the long rod are hinged with the through holes 1-7-1;
the guide rod 1-7 penetrates through the rubber ring 1-1, and the rubber ring 1-1 is connected with the stop plate 1-2 through the through hole 1-2-5 on the stop plate 1-2.
As shown in fig. 8, the spring fixing lever 1-2-3 is connected with the stopper plate 1-2 and with the stopper plate spring 1-4; the boss 1-3-1 is connected with the adjusting spring 1-5;
as shown in FIG. 4, the guide rod 1-7 passes through the rubber ring 1-1, and the rubber ring 1-1 is connected with the stop plate 1-2 through the stop plate through hole 1-2-5 on the stop plate 1-2.
The sofa backrest part 2 comprises an adjusting rod 2-1, a backrest cushion plate 2-2, a neck rest 2-3, a connecting spring 2-4, a connecting rod 2-5 and a backrest part supporting rod 2-6;
the adjusting rod 2-1 is a long rod, the upper end of the adjusting rod is provided with an adjusting rod through hole 2-1-1, the middle of the adjusting rod is provided with an adjusting rod boss 2-1-3 which is connected with the connecting spring 2-4, and the lower end of the adjusting rod is provided with an adjusting groove 2-1-2 which is in contact connection with the two ends 1-9-1 of the lower middle connecting shaft 1-9;
the connecting rod 2-5 is a long rod, one end of the connecting rod is provided with a connecting hole 2-6-2, and two ends of the connecting rod 2-5 are hinged with the backrest support rod 2-6 and the adjusting rod 2-1 through the connecting hole 2-6-2 and the adjusting rod through hole 2-1-1 respectively;
the backrest support rod 2-6 is a long rod, the lower end of the long rod is provided with a backrest support rod through hole 2-6-4, and the upper middle connecting rod 1-8 passes through the backrest support rod through hole 2-6-4 and is embedded into the rotating groove 1-6-2;
the neck rest 2-3 is connected with the backrest cushion plate 2-2, and the backrest cushion plate 2-2 is connected with the backrest support rod 2-6;
the sofa base component 3 shown in fig. 5 comprises a base cushion plate 3-1, two parallel base support rods 3-2, a hand rest 3-5 and a roller 3-6; the two side surfaces of the base backing plate 3-1 are respectively connected with the middle part of the base support rod 3-2, the upper part of the base support rod 3-2 is connected with the hand rest 3-5, and the bottom is provided with the idler wheels 3-6; the backing plate (3-1) is connected with the supporting rod 1-6;
as shown in fig. 6, the sofa pedal part 4 comprises a pedal part supporting rod 4-1, an adjusting slide block 4-2, a connecting shaft 4-3 and a foot plate 4-4;
the pedal part supporting rod 4-1 is a long rod, a T-shaped groove 4-1-1 is formed in the middle of the long rod, the adjusting slide block 4-2 is embedded into the T-shaped groove 4-1-1, two ends of the adjusting slide block are provided with through holes 4-1-2, one end of the adjusting slide block is hinged with two ends of the connecting shaft 4-3, and the other end of the adjusting slide block is hinged with the upper middle connecting shaft 1-8;
the adjusting slide block 4-2 is a T-shaped slide block, a rotating groove 4-2-1 is formed in the middle of the adjusting slide block, adjusting slide block through holes 4-2-2 are formed in the two sides of the adjusting slide block, and the adjusting slide block 4-2 is hinged with a guide rod through hole 1-7-1 on the guide rod 1-7 through the adjusting slide block through holes 4-2-2;
the connecting shaft 4-3 is a long rod;
the foot plate 4-4 is a thick plate, and the foot plate 4-4 is provided with a foot plate through hole 4-4-1 which is in threaded connection with the pedal part supporting rod 4-1;
the adjusting groove 2-1-2 shown in fig. 7 comprises a circular groove 2-1-2-1 and a linear groove 2-1-2-2, wherein the number of the circular grooves 2-1-2-1 is distributed according to the actual length requirement.
When the sofa backrest and the sofa pedal of the sofa bed need to be adjusted, the angle of the stop plate 1-2 is changed by pressing down the guide rod 1-7 positioned at the left side of the sofa bed, so that the guide rod 1-7 is loosened, the guide rod 1-7 can freely slide in the support rod 1-6, and the sofa backrest parts 2 at the two ends of the guide rod 1-7 are connected with the sofa pedal part 4, so that the angle of the sofa bed is adjusted; the guide rod 1-7 is loosened, and is reset under the action of the adjusting spring 1-5 and the stop plate spring 1-4, so that the locking of the guide rod 1-7 is realized, and the sofa backrest part 2 and the sofa pedal part 4 are positioned.
When the force of the adjusting lever 2-1 is downward, the circular groove 2-1-2-1 on the adjusting groove 2-1-2 can obstruct the movement of the contact end 1-9-1 of the lower intermediate connecting shaft 1-9, so that the adjusting lever 2-1 is fixed; when the force of the adjusting lever 2-1 is upward, the circular groove 2-1-2-1 on the adjusting groove 2-1-2 allows the contact end 1-9-1 of the lower intermediate connecting shaft 1-9 to enter the linear groove 2-1-2-2 for movement, so that the contact end 1-9-1 of the lower intermediate connecting shaft 1-9 can be replaced in each circular groove 2-1-2-1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. A multi-link adjustable sofa bed, comprising an angle adjusting component (1), a sofa backrest component (2), a sofa base component (3) and a sofa pedal component (4); the angle adjusting component (1) is characterized by comprising a rubber ring (1-1), a stop plate (1-2), a hand adjusting rod (1-3), a stop plate spring (1-4), an adjusting spring (1-5), a supporting rod (1-6), a guide rod (1-7), an upper middle connecting shaft (1-8) and a lower middle connecting shaft (1-9);
the stop plate (1-2) is a plate, a mounting hole is formed in the middle of the stop plate for the guide rod (1-7) to pass through, a groove (1-2-4) and a through hole (1-2-2) are formed in the upper part of the stop plate (1-2), the stop plate (1-2) is hinged with the support rod (1-6) through the through hole (1-2-2), the lower end of the stop plate (1-2) is connected with the contact rod (1-2-1), and the stop plate spring (1-4) is connected with the stop plate (1-2) through the spring fixing rod (1-2-3);
the hand adjusting rod (1-3) comprises a boss (1-3-1), a guide rod (1-3-3) and a contact block (1-3-2) which are sequentially connected from top to bottom, wherein the contact block (1-3-2) is in an inverted triangle shape, the inclined edge of the contact block is contacted with the contact rod (1-2-1), the guide rod (1-3-3) slides on a sliding groove (1-6-4), and the boss (1-3-1) is connected with an adjusting spring (1-5);
the stop plate spring (1-4) is a tension spring, and the adjusting spring (1-5) is a compression spring;
the support rod (1-6) is a T-shaped rod, support rod through holes (1-6-3) are respectively formed in the side surfaces of two ends of a cross rod part of the support rod (1-6), an upper middle connecting shaft (1-8) is hinged with the support rod (1-6) through the support rod through holes (1-6-3), rotating grooves (1-6-2) are respectively formed in the end surfaces of two ends of the cross rod, a support rod boss (1-6-6) and a support rod threaded hole (1-6-7) are formed in the central part of the cross rod, the support rod boss (1-6-6) is connected with an adjusting spring (1-5), and a sliding track (1-6-1) is formed in the vertical part of the support rod (1-6);
the guide rod (1-7) is a long rod, two ends of the guide rod are provided with guide rod through holes (1-7-1) and penetrate through the sliding track (1-6-1); the upper middle connecting shaft (1-8) is a long rod; the middle connecting shaft (1-9) at the lower part is a long rod, and two ends of the long rod are hinged with the guide rod through holes (1-7-1);
the guide rod (1-7) penetrates through the rubber ring (1-1), and the rubber ring (1-1) is connected with the stop plate (1-2) through a stop plate through hole (1-2-5) on the stop plate (1-2);
the sofa backrest part (2) comprises an adjusting rod (2-1), a backrest cushion plate (2-2), a neck rest (2-3), a connecting spring (2-4), a connecting rod (2-5) and a backrest part supporting rod (2-6);
the adjusting rod (2-1) is a long rod, an adjusting rod through hole (2-1-1) is formed in the upper end of the adjusting rod, an adjusting rod boss (2-1-3) is arranged in the middle of the adjusting rod and connected with the connecting spring (2-4), and an adjusting groove (2-1-2) is formed in the lower end of the adjusting rod and connected with two ends (1-9-1) of the lower middle connecting shaft (1-9) in a contact mode;
the connecting rod (2-5) is a long rod, one end of the connecting rod is provided with a connecting hole (2-6-2), and two ends of the connecting rod (2-5) are hinged with the back support rod (2-6) and the adjusting rod (2-1) through the connecting hole (2-6-2) and the adjusting rod through hole (2-1-1) respectively;
the backrest support rod (2-6) is a long rod, the lower end of the backrest support rod is provided with a backrest support rod through hole (2-6-4), and the upper middle connecting shaft (1-8) penetrates through the backrest support rod through hole (2-6-4) and is embedded into the rotating groove (1-6-2);
the neck rest (2-3) is connected with the backrest cushion plate (2-2), and the backrest cushion plate (2-2) is connected with the backrest support rod (2-6);
the sofa base component (3) comprises a base backing plate (3-1), two parallel base support rods (3-2), a hand rest (3-5) and a roller (3-6); the two side surfaces of the base backing plate (3-1) are respectively connected with the middle part of the base support rod (3-2), the upper part of the base support rod (3-2) is connected with the hand rest (3-5), and the bottom of the base support rod is provided with the idler wheels (3-6); the base backing plate (3-1) is connected with the supporting rod (1-6);
the sofa pedal component (4) comprises a pedal part supporting rod (4-1), an adjusting slide block (4-2), a connecting shaft (4-3) and a foot plate (4-4);
the pedal part supporting rod (4-1) is a long rod, a T-shaped groove (4-1-1) is formed in the middle of the long rod, the adjusting slide block (4-2) is embedded into the T-shaped groove (4-1-1), two ends of the long rod are provided with pedal part supporting rod through holes (4-1-2), one end of the long rod is hinged with two ends of the connecting shaft (4-3), and the other end of the long rod is hinged with the upper middle connecting shaft (1-8);
the adjusting slide block (4-2) is a T-shaped slide block, a rotating groove (4-2-1) is formed in the middle of the adjusting slide block, adjusting slide block through holes (4-2-2) are formed in the two sides of the adjusting slide block, and the adjusting slide block (4-2) is hinged with the guide rod through holes (1-7-1) on the guide rod (1-7) through the adjusting slide block through holes (4-2-2);
the connecting shaft (4-3) is a long rod;
the foot plate (4-4) is provided with a foot plate through hole (4-4-1) which is in threaded connection with the pedal part supporting rod (4-1);
when the sofa backrest and the sofa pedal of the sofa bed are required to be adjusted, the angle of the stop plate (1-2) is changed by pressing down the guide rod (1-7) positioned at the left side of the sofa bed, so that the guide rod (1-7) is loosened, the guide rod (1-7) can freely slide in the support rod (1-6), and the sofa backrest parts (2) at the two ends of the guide rod (1-7) are connected with the sofa pedal part (4), so that the angle of the sofa bed is adjusted; the guide rod (1-7) is loosened, and the guide rod (1-7) is locked under the action of the adjusting spring (1-5) and the stop plate spring (1-4), so that the sofa backrest component (2) and the sofa pedal component (4) are positioned.
2. The multi-link adjustable sofa bed according to claim 1, wherein the adjusting groove (2-1-2) is composed of a plurality of semicircular grooves (2-1-2-1) arranged in sequence and two linear grooves (2-1-2-2) distributed on both sides of the semicircular grooves (2-1-2-1).
3. The multi-link adjustable sofa bed according to claim 2, characterized in that the number of said semicircular grooves (2-1-2-1) is distributed according to the actual length requirements.
4. The multi-link adjustable sofa bed according to claim 1, characterized in that the rollers (3-6) are universal wheels; the roller (3-6) is hinged with the base support rod (3-2) through a screw hole (3-2-3) at the bottom of the base support rod (3-2).
5. The multi-link adjustable sofa bed according to claim 1, wherein threaded holes are distributed on the back cushion plate (2-2) and are connected with the back support rod (2-6) through the back support rod through holes (2-6-1) in a threaded manner.
6. The multi-link adjustable sofa bed according to claim 1, wherein the neck rest (2-3) is a long plate with a protruding block at the upper end and a threaded hole (2-3-1) at the lower end.
7. The multi-link adjustable sofa bed according to claim 6, wherein the protruding block is a cylindrical protrusion, which can contact with the neck when the person sits or lies down, satisfying the ergonomic design requirement.
8. The multi-link adjustable sofa bed according to claim 1, characterized in that the connecting springs (2-4) are tension springs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311695.5A CN107960780B (en) | 2017-12-11 | 2017-12-11 | Multi-connecting rod type adjustable sofa bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311695.5A CN107960780B (en) | 2017-12-11 | 2017-12-11 | Multi-connecting rod type adjustable sofa bed |
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| CN107960780A CN107960780A (en) | 2018-04-27 |
| CN107960780B true CN107960780B (en) | 2023-06-27 |
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|---|---|---|---|---|
| CN109157033A (en) * | 2018-07-05 | 2019-01-08 | 欧阳小燕 | A kind of swing type garden chair |
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