WO2021179523A1 - Connecting rod assembly for folding bed, and folding bed - Google Patents

Abstract

A connecting rod assembly for a folding bed, and a folding bed. The connecting rod assembly comprises two first connecting rods (11), two second connecting rods (12) and a first linkage rod (13). One end of each first connecting rod (11) is slidably connected to a lower leg board (21) of the folding bed, and the other end is rotatably connected to a folding bed frame (2). One end of each second connecting rod (12) is rotatably connected to a first connecting rod (11), and the other end is used for driving an upper leg board (22) of the folding bed to rotate. Two ends of the first linkage rod (13) are respectively fixedly connected to the two first connecting rods (11). The connecting rod assembly for the folding bed may be completely hidden in the bed frame, so that the folding bed may be used on the ground with zero clearance, and the overall thickness of the bed frame can be reduced, so that the bed body is thinner, the occupied space after folding is decreased, and transportation costs are significantly reduced.

Description

Connecting rod assembly for folding bed and folding bed Technical field

The utility model relates to the technical field of folding bed manufacturing, in particular to a connecting rod assembly for a folding bed and a folding bed.

Background technique

With the improvement of people's living standards, all kinds of furniture used in life are also more intelligent and comfortable. Electric folding beds have also been widely used. A motor is installed under the bed body to drive and control the rotation of the bed board, and the shape of the bed board is adjusted according to people's needs to adapt to people's sleeping posture.

The existing household folding beds on the market are large in size and heavy in weight. Even after folding, they still occupy a large area, which cannot meet the needs of users for the bed as small and thin as possible; the design thickness of the folding bed frame is generally high and common The thickness is 120mm～200mm, and the existing folding bed has a complicated structure, heavy weight and high transportation cost.

Utility model content

In order to solve the above technical problems, in the first aspect, the present invention provides a linkage assembly for a folding bed, which includes two first linkages, two second linkages, and a first linkage rod. One end is used for sliding connection with the calf plate of the folding bed, and the other end is used for hinged connection with the frame of the folding bed; one end of the second link is hinged with the first link, and the other end is used to drive the thigh plate of the folding bed Rotating, the two ends of the first linkage rod are respectively fixedly connected with the two first linkage rods.

Further, the hinge point of the second link and the first link is close to the side of the calf board of the folding bed, and the fixing point of the first link and the two first links is close to the side of the frame of the folding bed.

Further, it further includes a first rail, the first rail is fixedly connected to the back of the calf plate, and a guide groove is provided on the first rail, and the guide groove is a straight groove.

Further, it further includes a first sliding member, which is used to connect with one end of the first connecting rod and slide along the direction of the guide groove.

Further, the overall thickness of the connecting rod assembly after being folded is smaller than the thickness of the frame of the folding bed frame, and the thickness of the frame of the folding bed frame is less than 85 mm.

In the second aspect, the present invention also provides a folding bed, including the link assembly, and further comprising a folding bed frame, a thigh board, a calf board, and a first driving device. The thigh board and the calf board are rotatably connected, so The first driving device includes a first motor and a first push rod, the first motor is used to drive the first push rod, and the first push rod is used to push the first linkage rod to drive the The calf board and thigh board exercises are described.

Further, a first connecting piece is provided between the first push rod and the first linkage rod, one end of the first connecting piece is rotatably connected with the first push rod, and the other end is connected with the first push rod Linkage rod connection.

Further, the inner side frame of the folding bed frame and the first connecting rod are rotatably connected by a first assembly, and the first assembly includes a hollow sleeve and a screw, and the hollow sleeve is connected to the folding bed frame In a fixed connection, the first connecting rod is hollowly sleeved on the hollow sleeve, and the screw rod is connected to the hollow sleeve in a mating manner.

Further, an end of the thigh plate close to the calf plate is provided with a linkage member, one end of the linkage member is rotatably connected with the second link, and the other end of the linkage member is fixedly connected with the thigh plate.

Further, the folding bed further includes a seat board and a back board, the folding bed frame includes a hinged back frame and a leg frame, the back board is arranged on the back frame, the seat board, the thigh board and The calf plate is hinged and arranged on the leg frame in turn; a hinge assembly and a second drive device are arranged between the back plate and the back frame, and the second drive device drives the back plate to face each other through the hinge assembly Rotate on the back frame.

The implementation of this utility model has the following beneficial effects:

(1) The connecting rod assembly and the first driving device of the present invention are both hidden in the bed frame, which can better meet the requirements of consumers for the appearance of folding, and can be used on the ground with zero clearance, and the structure of the connecting rod assembly of the present invention It is simple and can reduce the overall thickness of the bed frame from 120mm-200mm in the prior art to 85mm or less.

(2) While ensuring the strength and function of the folding bed of the present invention, the structure is simplified, the floor space after folding is reduced compared with the prior art, and the transportation cost is greatly reduced;

(3) The connecting rod assembly of the present invention solves the shortcomings of insufficient support structure of the existing folding bed by adding a second connecting rod, greatly enhances the structural strength of the folding bed, and prolongs the service life of the folding bed.

Description of the drawings

In order to explain the technical solution of the present utility model more clearly, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some of the utility model. Embodiments, for those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.

Fig. 1 is a schematic structural diagram of a connecting rod assembly of embodiment 1;

Fig. 2 is a schematic diagram of embodiment 1 when the calf plate and the thigh plate are folded relative to the folding bed frame;

Figure 3 is a schematic diagram of the structure of the first assembling part of the first embodiment;

Figure 4 is a front view of the folding bed of Example 2 when it is unfolded;

Figure 5 is a schematic diagram of the structure of the hinge assembly of the second embodiment;

Figure 6 is a partial structural detail view of the hinge assembly of Embodiment 2;

Fig. 7 is a schematic diagram of the fixing position of the metal part in the second embodiment;

8 is a schematic diagram of the positions of the metal parts and the supporting parts of Embodiment 2;

FIG. 9 is a schematic diagram of the initial state of the folding bed of Embodiment 2. FIG.

Wherein, the reference signs in the figure correspond to: 1-connecting rod assembly, 11-first connecting rod, 12-second connecting rod, 13-first connecting rod, 14-first guide rail, 141-guide groove, 15 -First sliding part, 151-roller, 152-fastener, 16-reinforcing ribs, 2-folding bed frame, 21-calf board, 22-thigh board, 23-seat board, 24-back board, 241-th A back board, 242-second back board, 25-back frame, 26-leg frame, 3-first drive device, 31-first motor, 32-first push rod, 33-first connecting piece, 4 -First assembly, 41-hollow sleeve, 42-screw, 43-fixing piece, 44-washer, 5-linkage, 6-hinge assembly, 61-back bracket, 62-linkage rod, 63-second Guide rail, 64-second sliding part, 65-second assembly part, 7-second drive device, 71-second motor, 72-second push rod, 73-second connecting piece, 8-metal part, 9- supporting item.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.

The "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. The description does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in a sequence other than those illustrated or described herein.

It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or a centered component may also exist. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "installed on" another component, it can be directly installed on another component or a centered component may exist at the same time.

In the embodiment of the utility model, the folding bed is the head of the bed when the head is in use, and the foot of the foot is the direction of the feet. .

Example 1:

As shown in Figures 1-3, Embodiment 1 of the present invention provides a connecting rod assembly for a folding bed, which includes two first connecting rods 11, two second connecting rods 12 and a first connecting rod 13, so One end of the first link 11 is used for sliding connection with the calf plate 21 of the folding bed, and the other end is used for hinged connection with the folding bed frame 2; one end of the second link 12 is rotatably connected with the first link 11 , The other end is used to drive the thigh plate 22 of the folding bed to rotate, and the two ends of the first linkage rod 13 are respectively fixedly connected with the two first linkage rods 11. Specifically, the connecting rod assembly 1 is arranged between the folding bed frame 2 and the calf board 21 of the folding bed, and the thigh board 22 and the calf board 21 of the folding bed can be rotated and raised by the connecting rod assembly 1. Specifically, the hinge point of the second connecting rod 12 and the first connecting rod 11 is close to the side of the calf plate 21 of the folding bed, and the fixing points of the first connecting rod 13 and the two first connecting rods 11 are close to the folding bed. On the side of the bed frame 2 to fully ensure the travel space distance of the first push rod 32 of the first driving device pushing the first linkage rod 13 and increase the initial angle between the first driving device 3 and the calf plate 21 in the initial state, Make the push more labor-saving.

Specifically, the link assembly 1 further includes a first guide rail 14, which is fixedly connected to the back of the calf plate 21, and a guide groove 141 is provided on the first guide rail 14, and the guide groove 141 is in a straight shape. Type slot. In the embodiment of the present invention, the first guide rail 14 includes a fixed surface and a guide surface that are perpendicular to each other. The fixed surface is fixedly connected to the back of the lower leg plate 21. The groove 141 is a straight groove, and the direction of the guide groove 141 is parallel to the side of the calf plate 21.

Specifically, it further includes a first sliding member 15 which is used to connect with one end of the first connecting rod 11 and slide along the direction of the guide groove 141. In the embodiment of the present invention, The first sliding member 15 includes a roller 151 and a fastener 152. The fastener 152 passes through the guide groove 141 and the roller 151 and is fixedly connected to one end of the first link 11, and the fastener 152 can be It slides in the groove along the direction of the guide groove 141. The first sliding member 15 can also play a supporting role.

In some embodiments, the connecting rod assembly 1 further includes a reinforcing rib 16, one end of the reinforcing rib 16 is connected to the first connecting rod 11, and the other end of the reinforcing rib 16 is connected to the first connecting rod. 13 is connected, the first connecting rod 11, the reinforcing rib 16 and the first connecting rod 13 form a triangular structure. The reinforcing rib 16 is used to increase the structural strength of the connecting rod assembly 1.

Specifically, the overall thickness of the connecting rod assembly 1 after being folded is smaller than the thickness of the frame of the folding bed frame 2, and the thickness of the frame of the folding bed frame 2 is less than 85 mm. Specifically, the overall thickness of the connecting rod assembly 1 after being completely folded is very small, and when used on the folding bed, it can all be stored in the frame of the folding bed, so that the thickness of the folding bed can be made thinner and the weight is lighter.

In embodiment 1, the link assembly has the function of supporting and adjusting the thigh plate and the calf plate, and the first driving device drives the link assembly to drive the thigh plate and the calf plate to rotate upward relative to the seat plate and the bed frame to adjust the lifting High legs.

Example 2:

As shown in Figures 4-6, Embodiment 2 of the present invention provides a folding bed, which includes the link assembly 1 in Embodiment 1, and also includes a folding bed frame 2, a thigh board 22, a calf board 21 and a first driving device 3. The thigh plate 22 and the calf plate 21 are rotatably connected, the first driving device 3 includes a first motor 31 and a first push rod 32, and the first motor 31 is used to drive the first push rod 32 The first push rod 32 is used to push the first linkage rod 13, and the first driving device 3 is used to drive the first linkage rod 13 to drive the calf plate 21 and the thigh plate 22 to move.

Specifically, a first connecting member 33 is provided between the first push rod 32 and the first linkage rod 13, one end of the first connecting member 33 is rotatably connected to the first push rod 32, and the other One end is connected with the first linkage rod 13.

Specifically, the inner side frame of the folding bed frame 2 and the other end of the first connecting rod 11 are rotatably connected by a first assembly 4, and the first assembly 4 includes a hollow sleeve 41 and a screw 42. The hollow sleeve 41 is fixedly connected to the folding bed frame 2, the first connecting rod 11 is sleeved on the hollow sleeve 41, and the screw 42 is connected to the hollow sleeve 41 in a mating manner. The hollow sleeve 41 is provided with internal threads that match the external threads of the screw 42. In some embodiments, the hollow sleeve 41 can also be fixedly installed on the folding bed frame 2 through a fixing piece 43, which is welded to the side frame of the folding bed frame 2, and the first connecting rod 11 is close to the folding bed. One end of the frame is provided with an assembling hole, the screw 42 passes through the assembling hole and is locked with the hollow sleeve 41 so that the first connecting rod 11 and the hollow sleeve 41 are rotatably connected. In other embodiments, a gasket 44 is additionally provided between the screw 42 and the first connecting rod 11. The utility model adopts the first assembly 4 with a hollow sleeve 41 structure, which can greatly increase the connection strength between the first connecting rod 11 and the folding bed frame 2.

Specifically, as shown in Figure 1, the upper leg plate 22 is provided with a linkage member 5 at one end close to the calf plate 21, one end of the linkage member 5 is rotatably connected with the second link 12, and the other One end is fixedly connected to the thigh plate 22. The second connecting rod 12 is rotatably connected with the thigh plate 22 through a linkage member 5. In the embodiment of the present invention, the linkage member 5 includes an integrally formed rectangular member and an L-shaped member, and the L-shaped member is perpendicular to the rectangular member. The rectangular piece is fixed on the back of the thigh plate 22, and the short side of the L-shaped piece is rotatably connected with the second connecting rod 12.

Specifically, the folding bed further includes a seat board 23 and a back board 24. The folding bed frame 2 includes a hinged back frame 25 and a leg frame 26. The back board 24 is arranged on the back frame 25, so The seat board 23, the thigh board 21 and the lower leg board 22 are hinged and arranged on the leg frame 26 in sequence. Wherein, the seat plate 23 is fixed at one end of the leg frame close to the back frame 25, and the seat plate 23, the thigh plate 21 and the calf plate 22 are hinged with each other through a hinge. In some embodiments, the back plate 24 includes a first back plate 241 and a second back plate 242, wherein the second back plate 242 is fixed to an end of the back frame 25 close to the leg frame 26, and the first back plate 241 It is hinged with the second back plate 242 through a hinge. A hinge assembly 6 and a second drive device 7 are provided between the back plate 24 and the back frame 25, and the second drive device 7 drives the first back plate 241 relative to the back frame through the hinge assembly 6 25 rotation.

Specifically, the hinge assembly 6 includes a linkage rod 62 and two back supports 61. One end of the back support 61 is used for sliding connection with the backboard 24 of the folding bed, and the other end is used for rotating connection with the folding bed frame 2. The two ends of the linkage rod 62 are respectively fixedly connected to the two back supports 61, and the linkage rod 62 is used to connect with the second driving device 7 and drive the back plate 24 relative to the folding bed frame 2. Rotate.

In the embodiment of the present invention, the hinge assembly 6 further includes a second guide rail 63. One end of the second guide rail 63 is slidably connected to one end of the back support 61, and the other end is fixedly connected to the first backboard 241 of the folding bed. One end of the back support 61 is slidably connected to the second guide rail 63 through the second sliding member 64. The other end of the back support 61 is rotatably connected with the folding bed frame 2 through a second assembly 65. Specifically, in the embodiment of the present invention, the second assembly member 65 has the same structure as the first assembly member 4, the second sliding member 64 has the same structure as the first sliding member 15, and the second guide rail 63 is consistent with the first guide rail 14. Consistent structure.

Specifically, the second driving device 7 includes a second motor 71 and a second push rod 72. One end of the second motor 71 is connected to the head end of the folding bed frame 2, and the other end of the second motor 71 is connected to The second push rod 72 is connected, the second push rod 72 is rotatably connected with the second connecting member 73, and the second driving device 7 drives the linkage rod 62 to rotate upward or downward through the second connecting member 73 So that the first back plate 241 is folded relative to the second back plate 242.

When the second driving device 7 of this embodiment moves, the linkage rod 62 is lifted by the second connecting member 73 to drive the back support 61 to move, that is, one end of the back support 61 moves forward along the second guide rail 63, and the other end passes through the second guide rail 63. The second assembly 65 rotates relative to the folding bed frame 2 to complete the angle adjustment of the backboard 24. When the first motor 31 drives the first push rod 32, the first connecting rod 13 is driven to rotate and raise through the first connecting member 33, and the first connecting rod 11 is driven to move, and the second connecting rod 12 is passively moved, that is, the first connecting rod. One end of 11 is rotated relative to the folding bed frame 2 through the first assembly 4, and the other end is moved forward along the first guide rail 14 through the first sliding member 15 to drive the lower leg plate 21 to lift, because the first guide rail 14 is fixed to the lower leg On the plate 21, one end of the second link 12 rotates relative to the first link 11, and the other end thereof rotates relative to the thigh plate 22 through the linkage 5.

The connecting rod assembly and the hinge assembly of this embodiment are irregular parts. To ensure that the folding bed can be used on the ground with zero clearance, the distance between the lowest point of the hinge assembly and the connecting rod assembly 1 and the ground and the lowest point of the hinge assembly 6 when moving The distance between the point and the ground is not less than the distance between the folding bed frame and the ground, so that the connecting rod assembly 1 and the hinge assembly 6 are hidden in the folding bed frame 2, so as to reduce the overall thickness of the folding bed frame 2. The bed is thinner, see Figure 9 for the specific structure.

Specifically, in other embodiments, as shown in FIG. 7, in order to prevent bending and deformation of the bed board of the folding bed, a plurality of metal pieces 8 may be provided on the lower surface of the bed board, and the metal pieces 8 are elongated reinforcing structures. For example, a strip of metal piece 8 is fixed on both ends of the lower surface of the first back plate 241, and one end of the hinge where the first back plate 241 and the second back plate 242 are connected is fixed on the metal piece 8. The other end is fixed on the second back plate 242 so that the first back plate 241 can be folded relative to the second back plate 241; the two ends of the lower surface of the lower leg plate 21 are also fixed to the strip-shaped metal piece 8, the lower leg plate 21 and the thigh. One end of the hinged hinge of the plate 22 is fixed on the metal piece 8 of the lower leg plate 21, and the other end of the hinge is fixed on the thigh plate 22 so that the lower leg plate 21 can be folded relative to the thigh plate 22. The longitudinal length of the metal piece 8 in this embodiment is slightly smaller than the longitudinal width of the folding bed frame 2.

Specifically, in other embodiments, as shown in FIG. 8, in order to prevent bending and deformation of the bed plate and improve the support strength of the folding bed frame 2, a plurality of supports are added to the frame at the head end and the bottom end of the folding bed frame 2. In some embodiments, two support members 9 are respectively provided on the frame at the head end and the end of the bed. The upper surface of the support member 9 is level with the surface of the side frame of the folding bed frame 2. The head end frame referred to in the embodiment is a frame for fixing the second motor 71, and the foot end frame is a frame for fixing the first motor 31.

The connecting rod assembly, the hinge assembly, the first driving device and the second driving device of the utility model can all be hidden in the frame of the folding bed, which makes the overall structure of the folding bed more concise and can better meet the consumers' requirements for the appearance of the bed. At the same time, it can be used on the ground with zero clearance, and the connecting rod assembly of the utility model has a simple structure, which can reduce the overall thickness of the folding bed from 120mm-200mm in the prior art to less than 85mm. The connecting rod assembly solves the shortcomings of insufficient support structure of the existing folding bed by adding a second connecting rod, greatly enhances the structural strength of the folding bed, and prolongs the service life of the folding bed. The structure is simple, the floor space after folding is reduced compared with the prior art, and the transportation cost is greatly reduced. The folding bed of the utility model can be used directly without a bed leg, and can be used when the bed leg is off the ground.

The above are the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made. These improvements and modifications It is also regarded as the protection scope of the utility model.

Claims (10)

A connecting rod assembly for a folding bed, which is characterized in that it comprises two first connecting rods (11), two second connecting rods (12) and a first connecting rod (13). One end of 11) is used for sliding connection with the calf plate (21) of the folding bed, and the other end is used for rotating connection with the folding bed frame (2); one end of the second link (12) is connected with the first link (11) Rotation connection, the other end is used to drive the thigh plate (22) of the folding bed to rotate, and the two ends of the first linkage rod (13) are respectively fixedly connected with two first linkage rods (11). The connecting rod assembly for a folding bed according to claim 1, wherein the hinge point of the second connecting rod (12) and the first connecting rod (11) is close to the lower leg plate (21) of the folding bed. On the other hand, the fixing point of the first linkage rod (13) and the two first linkage rods (11) is close to one side of the folding bed frame (2). The linkage assembly for a folding bed according to claim 1, further comprising a first guide rail (14), the first guide rail (14) is fixedly connected to the back of the lower leg plate (21), The first guide rail (14) is provided with a guide groove (141), and the guide groove (141) is an in-line groove. The connecting rod assembly for a folding bed according to claim 3, further comprising a first sliding member (15), the first sliding member (15) and the first connecting rod (11) One end is connected and slides along the direction of the guide groove (141). The link assembly for a folding bed according to claim 1, wherein the overall thickness of the link assembly (1) after being folded is smaller than the thickness of the frame of the folding bed frame (2), and the folding bed The frame thickness of the frame (2) is less than 85mm. A folding bed, characterized by comprising the link assembly (1) of any one of claims 1-5, and further comprising a folding bed frame (2), a thigh board (22), a calf board (21) and a second A driving device (3), the thigh board (22) and the lower leg board (21) are rotatably connected, the first driving device (3) includes a first motor (31) and a first push rod (32), so The first motor (31) is used to drive the first push rod (32), and the first push rod (32) is used to push the first linkage rod (13) to drive the lower leg plate ( 21) and thigh board (22) exercise. The folding bed according to claim 6, characterized in that, the first driving device (3) further comprises a first connecting piece (33), and one end of the first connecting piece (33) is connected to the first connecting piece (33). The push rod (32) is rotatably connected, and the other end is connected with the first linkage rod (13). The folding bed according to claim 6, wherein the inner side frame of the folding bed frame (2) is rotatably connected with the first connecting rod (11) through a first assembly part (4), and the The first assembly (4) includes a hollow sleeve (41) and a screw (42), the hollow sleeve (41) is fixedly connected to the folding bed frame (2), and the first connecting rod (11) is hollow. It is sleeved on the hollow sleeve (41), and the screw (42) is matedly connected with the hollow sleeve (41). A folding bed according to claim 6, characterized in that, the end of the thigh board (22) close to the calf board (21) is provided with a linkage (5), and one end of the linkage (5) is connected to The second link (12) is rotatably connected, and the other end of the link (5) is fixedly connected with the thigh plate (22). The folding bed according to claim 6, wherein the folding bed further comprises a seat plate (23) and a back plate (24), and the folding bed frame (2) comprises a hinged back frame (25) And the leg frame (26), the back plate (24) is arranged on the back frame (25), the seat plate (23), the thigh plate (21) and the calf plate (22) are hinged and arranged in sequence On the leg frame (26); a hinge assembly (6) and a second driving device (7) are provided between the back plate (24) and the back frame (25), the second driving device (7) The back plate (24) is driven to rotate relative to the back frame (25) through the hinge assembly (6).

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