Chair back support of foldable rocking chair

Abstract

The utility model belongs to the field of seats, and discloses a foldable rocking chair back support which comprises a first adjusting rod and a second adjusting rod hinged to the first adjusting rod, the bottom end of the first adjusting rod and the bottom end of the second adjusting rod are respectively connected with a first supporting seat, and the top end of the first adjusting rod and the top end of the second adjusting rod are respectively connected with a second supporting seat. The distance between the two second supporting seats is changed along with the change of the included angle between the first adjusting rod and the second adjusting rod; the two second supporting seats are hinged to first supporting rods extending upwards, a foldable structure is hinged between the two first supporting rods, and the foldable structure is folded or stretched in the X direction, so that the chair back support is folded or stretched in the X direction. The two first supporting rods are driven to be close to or far away from each other, X-direction folding or stretching of the support is achieved, and the seat connected with the support can be driven to be folded in the X direction.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a foldable rocking chair back support. Background Art

[0002] Chairs are essential items for office or daily life, but in order to save space, the seats need to be folded when not in use to achieve the purpose of saving space. Existing seats do not have the function of folding and rocking chairs. Utility Model Content

[0003] In order to solve the above technical problems, a foldable rocking chair back support is provided.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a foldable rocking chair backrest bracket, comprising a first adjusting rod and a second adjusting rod hinged thereto, the bottom ends of the first adjusting rod and the second adjusting rod are respectively connected to a first support seat, the top ends of the first adjusting rod and the second adjusting rod are respectively connected to a second support seat, and the distance between the two second support seats changes with the change of the angle between the first adjusting rod and the second adjusting rod;

[0005] The two second support seats are both hingedly connected to the first support rod extending upward, and a foldable structure is hinged between the two first support rods. The foldable structure can be folded or stretched in the X direction to achieve the folding or stretching of the chair back bracket in the X direction; the two second support seats are fixedly connected to a support component connected to the chair back.

[0006] According to the utility model, further, the support component includes a second connecting member fixedly connected to the top surface of the second supporting seat, and the second connecting member is hinged with a second supporting rod vertically upward;

[0007] The top end of the first support rod is connected with a first connecting piece, the first connecting piece has a sleeve in a vertical direction, and the second support rod passes through the sleeve.

[0008] According to the utility model, further, the foldable structure includes a hinged sleeve and two connecting tubes hinged thereto and extending in opposite directions, and one end of the connecting tube is hinged to the first connecting piece on the corresponding side.

[0009] According to the utility model, further, the first connecting member has a first slot, the opening direction of the first slot is toward the connecting pipe, the connecting pipe is partially inserted into the first slot, and is hinged to the side wall of the first slot.

[0010] According to the utility model, further, the hinged sleeve has a second slot, the second slot opens downward, and one end of the two connecting pipes is hingedly connected to the second slot.

[0011] According to the utility model, further, the second connecting member has a limiting shaft for blocking the second support rod from moving forward.

[0012] According to the utility model, further, the first adjusting rod is cross-connected with the second adjusting rod, the hinge point is the midpoint of the two, and the first supporting seat and the second supporting seat on the same side correspond in position.

[0013] Compared with the prior art, the beneficial effects of the present invention are that the positions of the two first support rods and the chair back are relatively fixed, and a foldable structure is hinged between the two. The foldable structure can be folded or stretched in the X-direction, driving the two first support rods to move closer or farther away, thereby realizing the folding or stretching of the bracket in the X-direction, and thus driving the seat connected thereto to realize the folding in the X-direction.

[0014] The limiting shaft provided on the second connecting member can prevent the second supporting rod from moving forward, thereby solving the problem of the chair back tilting forward when no one is using the chair temporarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a foldable rocking chair back support from a first perspective of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a foldable rocking chair back support from a second viewing angle of the utility model;

[0017] Figure 3 This is a schematic structural diagram of a foldable rocking chair back support from a third viewing angle according to the utility model.

[0018] Among them, 100-first adjusting rod, 200-second adjusting rod, 300-first supporting seat, 310-partition, 311-first connecting surface, 312-second connecting surface, 400-second supporting seat, 500-first support rod, 600-first connecting member, 610-sleeve, 620-first slot, 700-second support rod, 800-second connecting member, 810-limiting shaft, 900-articulated sleeve, 910-connecting tube, 920-second slot. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] like Figure 1As shown, a foldable rocking chair backrest bracket is used for fabric seats to realize the folding of the seat in the X direction, further reducing the size of the seat after folding, making it more convenient to store and accommodate. It includes a first adjustment rod 100 and a second adjustment rod 200 hinged thereto, the bottom ends of the first adjustment rod 100 and the second adjustment rod 200 are respectively connected to a first support seat 300, and the top ends of the first adjustment rod 100 and the second adjustment rod 200 are respectively connected to a second support seat 400. The two first support seats 300 are hingedly connected to a first support rod 500 extending upward, and a foldable structure is hinged between the two first support rods 500. The foldable structure can be folded or stretched in the X direction, driving the two first support rods 500 to move closer or farther away, so as to realize the folding or stretching of the bracket in the X direction. The top of the first support rod 500 is connected with a first connecting member 600, and the first connecting member 600 has a sleeve 610 with a vertical opening, and the sleeve 600 is fixedly connected with a second support rod 700, and the second support rod 700 is preferably fixed in the opening of the sleeve 600 by a pin, and the upper half of the second support rod 700 is fixedly connected to the back of the chair back through a fixing member, and the bottom of the second support rod 700 is hinged with a second connecting member 800, and the second connecting member 800 is fixedly connected to the top surface of the second support seat 400. Preferably, the top surface of the second support seat 400 is a plane, and the bottom surface of the second connecting member 800 is also a plane, and the two planes are fixedly connected to improve the stability of the connection.

[0021] In this embodiment, if Figure 3 As shown, the second connecting member 800 has a limiting shaft 810 that blocks the second support rod 700 from moving forward. The second connecting member 800 is a hollow structure, one end of the second support rod 700 is located in the hollow structure, and the second support rod 700 is hinged to the second connecting member 800 through a rotating pin, the limiting shaft 810 is parallel to the axis of the rotating pin, and the linear distance between the limiting shaft 810 and the first support rod 500 is greater than the linear distance between the rotating pin and the first support rod 500, that is, the limiting shaft 810 limits the second support rod 700 from tilting forward, thereby limiting the forward tilting range of the chair back.

[0022] In this embodiment, the first adjustment rod 100 and the second adjustment rod 200 are cross-connected, and the hinge point is the midpoint of the two. The first support seat 300 and the second support seat 400 on the same side correspond to each other, ensuring that the corresponding upper and lower support seats are in line after stretching, and the overall seat structure is more stable.

[0023] In this embodiment, the foldable structure includes a hinged sleeve 900 and two connecting tubes 910 extending in opposite directions hinged thereto, and the connecting tubes 910 are hinged to the first connecting member 600 on the corresponding side. Preferably, the first connecting member 600 has a first slot 620 that is different from the setting direction of the sleeve 610, and the connecting tube 910 is partially inserted into the first slot 620. The rotating pin passes through the side wall of one side of the first slot 620, the tube wall of the connecting tube 910, and the side wall of the other side of the first slot 620 in sequence, connecting the two into an integral structure, and the connecting tube 910 can swing along the outer circumference of the rotating pin in the first slot 620; Figure 2 As shown, the hinged sleeve 900 has a second slot 920, which opens downward. One end of the two connecting pipes 910 is located in the second slot 920 and is also hinged by a rotating pin.

[0024] When the bracket needs to be folded, an upward pulling force is applied to the articulated sleeve 900 by hand so that the downward angle between the two connecting tubes 910 is less than 180°, and then the first support rod 500 is pushed to apply an X-direction squeezing force thereto, so that the distance between the two second support seats 400 is reduced and pushed to the limit position to achieve the folding of the bracket.

[0025] When the bracket needs to be stretched, pull the first support rod 500 to apply an X-direction pulling force to it, gradually increase the distance between the two second support seats 400 until the chair back is unfolded, and then apply a downward pressure to the hinge sleeve 900 to make the downward angle of the two connecting tubes 910 greater than 180°. The entire bracket frame structure is fixed and can be used.

[0026] In this embodiment, the existing seat frame (not shown) may be included, the seat frame is provided with a cloth seat, the backrest is also made of cloth, the upper part of the backrest is fixed to the upper half of the second support rod 700 by a fixing clamp or other fixing parts that can fix the two, and the bottom of the backrest is connected to the seat frame as an integral structure. When the bracket is stretched, the user sits on the seat, and the back applies a backward force to the backrest, and the lower end of the second support rod 700 rotates relative to the rotating pin connected to the second connecting member 800, so that the backrest is tilted back, the force applied to the backrest disappears, and the backrest returns to an upright state. If the user shakes back and forth, the backrest also shakes back and forth, so as to realize the rocking chair function.

[0027] In this embodiment, the first support seat 300 has a bottom surface, which is a plane and contacts the ground to keep the bracket stable and prevent shaking; the first support seat 300 also has a top surface opposite to the bottom surface, and a vertical upward partition 310 is formed on the top surface. The partition 310 has at least two connecting surfaces for hinged connection with different connecting parts. Specifically, the partition 310 has a first connecting surface 311 and a second connecting surface 312. The first connecting surface 311 is equipped with a rotating pin for hinged connection with the adjustment rod on the corresponding side; the second connecting surface 312 is equipped with a rotating pin for hinged connection with the first support rod 500 on the corresponding side. Increasing the hinge points can fix multiple components on the same support seat. Among them, the structure of the second support seat 400 is the same as that of the first support seat 300, and the partitions 310 are arranged relatively to each other for hinged connection with the corresponding adjustment rod.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A foldable rocking chair back support, characterized in that: The invention comprises a first adjusting rod and a second adjusting rod hinged therewith, wherein the bottom ends of the first adjusting rod and the second adjusting rod are respectively connected to a first supporting seat, and the top ends of the first adjusting rod and the second adjusting rod are respectively connected to a second supporting seat, and the distance between the two second supporting seats changes as the angle between the first adjusting rod and the second adjusting rod changes; The two second support seats are both hingedly connected to the first support rod extending upward, and a foldable structure is hinged between the two first support rods. The foldable structure can be folded or stretched in the X direction to achieve the folding or stretching of the chair back bracket in the X direction; the two second support seats are fixedly connected to a support component connected to the chair back.

2. A foldable rocking chair back support as claimed in claim 1, characterized in that: The support component comprises a second connecting member fixedly connected to the top surface of the second supporting seat, and the second connecting member is hinged with a second supporting rod vertically upward; The top end of the first support rod is connected with a first connecting piece, the first connecting piece has a sleeve in a vertical direction, and the second support rod passes through the sleeve.

3. The foldable rocking chair back support as claimed in claim 1, characterized in that: The foldable structure comprises a hinged sleeve and two connecting pipes hinged to the hinged sleeve and extending in opposite directions, wherein one end of the connecting pipe is hinged to the first connecting piece on the corresponding side.

4. A foldable rocking chair back support as claimed in claim 3, characterized in that: The first connecting member has a first slot, the opening direction of the first slot faces the connecting pipe, the connecting pipe is partially inserted into the first slot and is hinged to the side wall of the first slot.

5. The foldable rocking chair back support as claimed in claim 3, characterized in that: The hinged sleeve has a second slot, the second slot opens downward, and one end of the two connecting pipes is hingedly connected to the second slot.

6. The foldable rocking chair back support as claimed in claim 2, characterized in that: The second connecting member has a limiting shaft (810) for blocking the second supporting rod from moving forward.

7. The foldable rocking chair back support according to claim 1, characterized in that: The first adjusting rod is cross-connected with the second adjusting rod, the hinge point is the midpoint of the two, and the first supporting seat and the second supporting seat on the same side are in corresponding positions.

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