Single-cross linkage type folding footrest and split type deck chair

Abstract

The utility model relates to the technical field of deck chairs, in particular to a single cross linkage type folding footrest and a split type deck chair, the footrest comprises an arc-shaped rod, a front supporting rod, a linkage rod, a rear supporting rod and a connecting piece; a first hinge piece, a second hinge piece and a third hinge piece are sequentially mounted on the arc-shaped rod from front to back; the outer ends of the front supporting rods are connected with the corresponding arc-shaped rods through first hinge pieces, and the inner ends of the front supporting rods are connected through fourth hinge pieces. The upper ends of the linkage rods are connected with the corresponding arc-shaped rods through third hinge pieces, and the lower ends of the linkage rods are installed on fifth hinge pieces. The upper ends of the rear supporting rods are connected with the corresponding arc-shaped rods through second hinge pieces, and the lower ends of the rear supporting rods are installed on fifth hinge pieces. According to the utility model, the chair cloth is sleeved by the arc-shaped rod, and the chair cloth forms the arc-shaped supporting surface attached to the legs of the human body at the foot rest, so that the supporting comfort is higher; meanwhile, the footrest and the back support are of a split structure and can move independently, the applicability is good, and the requirements of users with different figures are met.

Description

Technical Field

[0001] The utility model relates to the technical field of reclining chairs, in particular to a single-cross linkage type folding footrest and a split-type reclining chair. Background Art

[0002] The split-type reclining chair mainly consists of a back support bracket, a foot support bracket (i.e., a footrest), and a chair cloth sleeved outside the back support bracket and the footrest. In order to facilitate storage and use, the back support bracket and the footrest can be designed as a folding structure.

[0003] Most of the traditional folding footrests are of a double-cross linkage type structure. For example, the Chinese patent document with the publication number CN107183976A discloses a folding chair that can be used for sitting and lying, including an integrated chair frame, a chair surface, armrests installed on the chair frame, and a leg support frame detachably installed on the front side of the chair frame. The chair frame includes: a pair of front support rods, two pairs of symmetrically arranged side support rods, a pair of symmetrically arranged backrest support rods, a pair of symmetrically arranged side link rods. The chair surface is made of cloth and includes two parts, a seat and a backrest. The armrests are made of cloth. The front end of the armrest is connected to the front support rod, and the rear end of the armrest is connected to the backrest support rod. The leg support frame includes a pair of cross-arranged leg support rods and a seat extension installed on the leg support rods.

[0004] The above-mentioned double-cross linkage type folding footrest has deficiencies in use. First, its front support rod is a straight board surface, resulting in poor comfort. Second, its fixed structure integrated with the back bracket cannot move independently, with poor applicability and unable to meet the needs of users with different body shapes.

[0005] In view of this, the inventor expects to design a single-cross linkage type folding footrest with better comfort and stronger applicability. Summary of the Invention

[0006] The purpose of the utility model is to overcome the above problems existing in the traditional technology and provide a single-cross linkage type folding footrest and a split-type reclining chair.

[0007] To achieve the above technical purposes and reach the above technical effects, the utility model is realized through the following technical solutions:

[0008] The utility model provides a single-cross linkage type folding footrest, including an arc rod, a front support rod, a linkage rod, a rear support rod, and a connecting piece. The connecting piece includes a first hinge piece, a second hinge piece, a third hinge piece, a fourth hinge piece, and a fifth hinge piece;

[0009] There are two arc rods in total, and they are arranged side by side. The first hinge piece, the second hinge piece, and the third hinge piece are sequentially installed on the arc rod from front to back;

[0010] There are two front support rods in total. The outer ends of the two front support rods are connected to the corresponding arc-shaped rods through the first hinge, and the inner ends are connected to each other through the fourth hinge;

[0011] There are two linkage rods in total, and they are cross-arranged; the upper ends of the linkage rods are connected to the corresponding arc-shaped rods through the third hinge, and the lower ends are installed on the fifth hinge;

[0012] There are two rear support rods in total. The upper ends of the rear support rods are connected to the corresponding arc-shaped rods through the second hinge, and the lower ends are installed on the fifth hinge.

[0013] Furthermore, in the above single-cross linkage type folding footrest, the fifth hinge includes a base. On the upper side of the base of the fifth hinge, there is a first ear seat for hinging with the bottom end of the rear support rod and a second ear seat for hinging with the bottom end of the linkage rod.

[0014] Furthermore, in the above single-cross linkage type folding footrest, the first hinge includes a first locking rod portion for fixing the arc-shaped rod and a third ear seat for hinging with the outer end of the front support rod, and the first locking rod portion and the third ear seat are fixedly connected.

[0015] Furthermore, in the above single-cross linkage type folding footrest, the second hinge is a U-shaped plate. The U-shaped plate is sleeved and fixed on the outer side of the arc-shaped rod, and the part of the U-shaped plate extending relative to the arc-shaped rod is hinged with the top end of the rear support rod.

[0016] Furthermore, in the above single-cross linkage type folding footrest, the third hinge is an L-shaped plate. One plate portion of it is fixed to the arc-shaped rod, and the other plate portion is hinged with the top end of the linkage rod.

[0017] Furthermore, in the above single-cross linkage type folding footrest, the fourth hinge is a channel-shaped plate, and the two ends of the channel-shaped plate are respectively hinged with the bottom ends of the two front support rods.

[0018] Furthermore, in the above single-cross linkage type folding footrest, the fourth hinge is replaced by a sixth hinge. A seventh hinge is installed on the inner linkage rod. A reinforcing support rod is jointly installed between the additional ear seat of the sixth hinge relative to the fourth hinge and the seventh hinge, and the length of the reinforcing support rod is fixed; the seventh hinge is a channel-shaped ear seat, the web portion of the channel-shaped ear seat is fixed to the linkage rod, and the two side plates are hinged with the rear end of the reinforcing support rod.

[0019] Further, in the above single-cross linkage type folding footrest, the fourth hinge member is replaced by a sixth hinge member. A seventh hinge member is installed on the inner linkage rod. A telescopic support rod is jointly installed between the additional ear seat of the sixth hinge member relative to the fourth hinge member and the seventh hinge member, and the length of the telescopic support rod can be adjusted; the seventh hinge member is a grooved ear seat, the web part of the grooved ear seat is fixed to the linkage rod, and both side plates are hinged to the rear end of the telescopic support rod.

[0020] Further, in the above single-cross linkage type folding footrest, the fourth hinge member is replaced by a sixth hinge member. A seventh hinge member is installed on the inner linkage rod. A reinforcing support rod is jointly installed between the additional ear seat of the sixth hinge member relative to the fourth hinge member and the seventh hinge member, and the length of the reinforcing support rod is fixed; the seventh hinge member is a grooved ear seat, the web part of the grooved ear seat is fixed to the linkage rod, and both side plates are hinged to the rear end of the reinforcing support rod; A combined dial is installed between the two front support rods. The combined dial is composed of a first dial and a second dial which are rotatably connected. The outer end of each dial is hinged to the corresponding front support rod; the first hinge member is replaced by an eighth hinge member. The eighth hinge member includes a second locking rod part for fixing the arc-shaped rod and a fourth ear seat for hinging to the outer end of the front support rod. The web part of the fourth ear seat is supported by the second locking rod part, and the rotation center line of the fourth ear seat is parallel to the length direction of the combined dial.

[0021] The present utility model also provides a split-type reclining chair, which includes a back support bracket, a footrest, and a chair cloth sleeved outside the back support bracket and the footrest. The footrest is the above-mentioned single-cross linkage type folding footrest.

[0022] The beneficial effects of the present utility model are:

[0023] 1. The single-cross linkage type folding footrest provided by the present utility model has a reasonable structural design. It uses an arc-shaped rod to sleeve the chair cloth, and the chair cloth forms an arc-shaped support surface that fits the human leg at the footrest, with a relatively high support comfort; at the same time, the footrest and the back bracket are split structures and can be moved independently, with good applicability and meeting the needs of users with different body shapes.

[0024] 2. The single-cross linkage type folding footrest provided by the present utility model has good expandability and can strengthen functions such as the support function by adding or replacing accessories according to needs.

[0025] Of course, it is not necessary for any product implementing the present utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of a single-cross linkage type folding footrest in the first embodiment;

[0028] Figure 2 It is a schematic structural diagram of the fifth hinge member in the first embodiment;

[0029] Figure 3 It is a schematic structural diagram of the first hinge member in the first embodiment;

[0030] Figure 4 It is a schematic structural diagram of the second hinge member in the first embodiment;

[0031] Figure 5 It is a schematic structural diagram of the third hinge member in the first embodiment;

[0032] Figure 6 It is a schematic structural diagram of the fourth hinge member in the first embodiment;

[0033] Figure 7 It is a folding schematic diagram of the single-cross linkage type folding footrest in the first embodiment;

[0034] Figure 8 It is a schematic structural diagram of a split-type recliner in the first embodiment;

[0035] Figure 9 It is a schematic structural diagram of a single-cross linkage type folding footrest in the second embodiment;

[0036] Figure 10 It is a schematic structural diagram of the sixth hinge member in the second embodiment;

[0037] Figure 11 It is a schematic structural diagram of the seventh hinge member in the second embodiment;

[0038] Figure 12 It is a folding schematic diagram of the single-cross linkage type folding footrest in the second embodiment;

[0039] Figure 13 It is a schematic structural diagram of the split-type recliner with the chair cloth omitted in the second embodiment;

[0040] Figure 14 It is a schematic structural diagram of a single-cross linkage type folding footrest in the third embodiment;

[0041] Figure 15It is a folding schematic diagram of the single-cross linkage type folding footrest in Embodiment 3;

[0042] Figure 16 It is a structural schematic diagram of the single-cross linkage type folding footrest in Embodiment 4;

[0043] Figure 17 It is a structural schematic diagram of the combined paddle in Embodiment 4;

[0044] Figure 18 It is a structural schematic diagram of the eighth hinge in Embodiment 4;

[0045] Figure 19 It is a schematic diagram of the folding process of the single-cross linkage type folding footrest in Embodiment 4;

[0046] Figure 20 It is a folding schematic diagram of the single-cross linkage type folding footrest in Embodiment 4;

[0047] In the drawings, the list of components represented by each reference numeral is as follows:

[0048] 1 - Arc-shaped rod, 2 - Footrest member, 3 - First hinge, 301 - First locking rod portion, 302 - Third ear seat, 4 - Second hinge, 5 - Third hinge, 6 - Fourth hinge, 7 - Front support rod, 8 - Fifth hinge, 801 - Base, 802 - First ear seat, 803 - Second ear seat, 9 - Linking rod, 10 - Rear support rod, 11 - Sixth hinge, 12 - Seventh hinge, 13 - Reinforcing support rod, 14 - Telescopic support rod, 15 - Combined paddle, 151 - Paddle 1, 152 - Paddle 2, 16 - Eighth hinge, 161 - Second locking rod portion, 162 - Fourth ear seat. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Embodiment 1

[0050] As Figure 1 shown, this embodiment provides a single-cross linkage type folding footrest, including an arc-shaped rod 1, a front support rod 7, a linking rod 9, a rear support rod 10, and connecting members. The connecting members include a first hinge 3, a second hinge 4, a third hinge 5, a fourth hinge 6, and a fifth hinge 8.

[0051] There are two arc-shaped rods 1 in total, and they are arranged side by side; the first hinge 3, the second hinge 4 and the third hinge 5 are successively installed on the arc-shaped rod 1 from front to back. According to requirements, a support foot member 2 can be added at the frontmost end of the arc-shaped rod 1.

[0052] There are two front support rods 7 in total. The outer ends of the two front support rods 7 are connected to the corresponding arc-shaped rod 1 through the first hinge 3, and the inner ends of the two front support rods 7 are connected to each other through the fourth hinge 6.

[0053] There are two linkage rods 9 in total, and they are cross-arranged; the upper ends of the linkage rods 9 are connected to the corresponding arc-shaped rod 1 through the third hinge 5, and the lower ends are installed on the fifth hinge 8.

[0054] There are two rear support rods 10 in total. The upper ends of the rear support rods 10 are connected to the corresponding arc-shaped rod 1 through the second hinge 4, and the lower ends are installed on the fifth hinge 8.

[0055] As Figure 2 shown, the fifth hinge 8 includes a base 801. On the upper side of the base 801, the fifth hinge 8 is provided with a first ear seat 802 for hinging with the bottom end of the rear support rod 10 and a second ear seat 803 for hinging with the bottom end of the linkage rod 9. The support foot member 2 can adopt a support foot structure similar to or other than that of the fifth hinge 8.

[0056] As Figure 3 shown, the first hinge 3 includes a first locking rod portion 301 for fixing the arc-shaped rod 1 and a third ear seat 302 for hinging with the outer end of the front support rod 7, and the first locking rod portion 301 and the third ear seat 302 are fixedly connected.

[0057] As Figure 4 shown, the second hinge 4 is a U-shaped plate. The U-shaped plate is sleeved and fixed on the outside of the arc-shaped rod 1, and the part of the U-shaped plate extending relative to the arc-shaped rod 1 is hinged with the top end of the rear support rod 10.

[0058] As Figure 5 shown, the third hinge 5 is an L-shaped plate. One plate portion thereof is fixed to the arc-shaped rod 1, and the other plate portion is hinged with the top end of the linkage rod 9.

[0059] As Figure 6 shown, the fourth hinge 6 is a channel-shaped plate, and the two ends of the channel-shaped plate are respectively hinged with the bottom ends of the two front support rods 7.

[0060] The folded state of the single-cross linkage type folding footrest in this embodiment is as Figure 7 shown.

[0061] As Figure 8 shown, this embodiment also provides a split-type reclining chair, which includes a back support bracket, a footrest, and a chair cloth sleeved on the outside of the back support bracket and the footrest. The footrest is the above-mentioned single-cross linkage type folding footrest.

[0062] The single-cross linkage type folding footrest structure provided by this embodiment is reasonably designed. It uses the arc-shaped rod 1 to sleevethe chair cloth, and the chair cloth forms an arc-shaped support surface that fits the human leg at the footrest, providing a relatively high level of support comfort. At the same time, the footrest and the backrest bracket are separate structures and can move independently, with good applicability and meeting the needs of users with different body shapes. Embodiment Two

[0063] As Figure 9 shown, this embodiment provides a single-cross linkage type folding footrest, which includes an arc-shaped rod 1, a front support rod 7, a linkage rod 9, a rear support rod 10, a strengthening support rod 13, and connecting members. The connecting members include a first hinge member 3, a second hinge member 4, a fourth hinge member 6, a fifth hinge member 8, a sixth hinge member 11, and a seventh hinge member 12.

[0064] The structure of the sixth hinge member 11 is as Figure 10 shown, and it has one more ear seat compared to the fourth hinge member 6.

[0065] Among them, a seventh hinge member 12 is installed on the inner linkage rod 9. A strengthening support rod 13 is jointly installed between the additional ear seat of the sixth hinge member 11 relative to the fourth hinge member 6 and the seventh hinge member 12, and the length of the strengthening support rod 13 is fixed.

[0066] As Figure 11 shown, the seventh hinge member 12 is a grooved ear seat. The web part of the grooved ear seat is fixed to the linkage rod 9, and the two side plates are hinged to the rear end of the strengthening support rod 13.

[0067] The folded state of the single-cross linkage type folding footrest in this embodiment is as Figure 12 shown.

[0068] As Figure 13 shown, this embodiment also provides a split-type recliner, which includes a back support bracket, a footrest, and a chair cloth (not shown in the figure) sleeved on the outside of the back support bracket and the footrest. The footrest is the above-mentioned single-cross linkage type folding footrest.

[0069] The main difference between this embodiment and Embodiment One is that the fourth hinge member 6 is replaced by the sixth hinge member 11, and at the same time, the strengthening support rod 13 is added. The design of the strengthening support rod 13 can improve the overall support reliability. Embodiment Three

[0070] As Figure 14 shown, this embodiment provides a single-cross linkage type folding footrest, which includes an arc-shaped rod 1, a front support rod 7, a linkage rod 9, a rear support rod 10, a telescopic support rod 14, and connecting members. The connecting members include a first hinge member 3, a second hinge member 4, a fourth hinge member 6, a fifth hinge member 8, a sixth hinge member 11, and a seventh hinge member 12.

[0071] In this embodiment, the state of the single-cross linkage type folding footrest after folding is as shown in Figure 15 the figure.

[0072] The main difference between this embodiment and the second embodiment is that the telescopic support rod 14 is used to replace the reinforcing support rod 13, and the length of the telescopic support rod 14 can be adjusted. The design of the telescopic support rod 14 can not only improve the overall support reliability, but also realize the adjustment of the overall support height. Embodiment Four

[0073] As shown in Figure 16 the figure, this embodiment provides a single-cross linkage type folding footrest, which includes an arc rod 1, a front support rod 7, a linkage rod 9, a rear support rod 10, a reinforcing support rod 13, a combined flap 15 and a connecting member. The connecting member includes a second hinge member 4, a fourth hinge member 6, a fifth hinge member 8, a sixth hinge member 11, a seventh hinge member 12 and an eighth hinge member 16.

[0074] As shown in Figure 17 the figure, a combined flap 15 is installed between the two front support rods 7. The combined flap 15 is formed by rotatably connecting a flap one 151 and a flap two 152, and the outer end of each flap is hinged to the corresponding front support rod 7.

[0075] As shown in Figure 18 the figure, the eighth hinge member 16 includes a second locking rod portion 161 for fixing the arc rod 1 and a fourth ear seat 162 for hinging with the outer end of the front support rod 7. The web portion of the fourth ear seat 162 is supported by the second locking rod portion 161, and the rotation center line of the fourth ear seat 162 is parallel to the length direction of the combined flap 15.

[0076] The folding process of the single-cross linkage type folding footrest in this embodiment is as shown in Figure 19 the figure, and the state after complete folding is as shown in Figure 20 the figure.

[0077] This embodiment also provides a split-type reclining chair, which includes a back support bracket, a footrest and a chair cloth sleeved outside the back support bracket and the footrest. The footrest is the above-mentioned single-cross linkage type folding footrest.

[0078] The main difference between this embodiment and the second embodiment is that the eighth hinge member 16 is used to replace the first hinge member 3, and the eighth hinge member 16 has a torsion function relative to the first hinge member 3. At the same time, a combined flap 15 is added between the two front support rods 7. After the two flaps of the combined flap 15 are fully opened, they have a certain locking effect and can provide enhanced support for the two front support rods 7. When storing, a reverse force needs to be provided to make the two flaps approach each other, as shown in Figure 19 the figure, and then the overall storage is carried out, as shown in Figure 20 the figure.

[0079] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation manners. Obviously, according to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A single-cross linkage type folding footrest, characterized in that It includes an arc-shaped rod, a front support rod, a linkage rod, a rear support rod and a connecting member. The connecting member includes a first hinge member, a second hinge member, a third hinge member, a fourth hinge member and a fifth hinge member; There are two arc-shaped rods, which are arranged side by side; the first hinge member, the second hinge member and the third hinge member are sequentially installed on the arc-shaped rod from front to back; There are two front support rods. The outer ends of the two front support rods are connected to the corresponding arc-shaped rods through the first hinge member, and the inner ends are connected to each other through the fourth hinge member; There are two linkage rods, which are arranged in a cross shape; the upper ends of the linkage rods are connected to the corresponding arc-shaped rods through the third hinge member, and the lower ends are installed on the fifth hinge member; There are two rear support rods. The upper ends of the rear support rods are connected to the corresponding arc-shaped rods through the second hinge member, and the lower ends are installed on the fifth hinge member.

2. The single-cross linkage type folding footrest according to claim 1, characterized in that The fifth hinge member includes a base. On the upper side of the base, the fifth hinge member is provided with a first ear seat for hinging with the bottom end of the rear support rod and a second ear seat for hinging with the bottom end of the linkage rod.

3. The single-cross linkage type folding footrest according to claim 1, characterized in that, The first hinge member includes a first locking rod portion for fixing the arc-shaped rod and a third ear seat for hinging with the outer end of the front support rod. The first locking rod portion and the third ear seat are fixedly connected.

4. The single-cross linkage type folding footrest according to claim 1, characterized in that, The second hinge member is a U-shaped plate. The U-shaped plate is sleeved and fixed on the outer side of the arc-shaped rod. The part of the U-shaped plate extending relative to the arc-shaped rod is hinged to the top end of the rear support rod.

5. The single-cross linkage type folding footrest according to claim 1, characterized in that, The third hinge member is an L-shaped plate. One plate portion is fixed to the arc-shaped rod, and the other plate portion is hinged to the top end of the linkage rod.

6. The single-cross linkage type folding footrest according to claim 1, wherein The fourth hinge member is a channel-shaped plate. The two ends of the channel-shaped plate are respectively hinged to the bottom ends of the two front support rods.

7. The single-cross linkage type folding footrest according to claim 1, characterized in that, The fourth hinge member is replaced by a sixth hinge member. A seventh hinge member is installed on the inner linkage rod. A reinforcing support rod is jointly installed between the ear seat of the sixth hinge member that is extra compared to the fourth hinge member and the seventh hinge member. The length of the reinforcing support rod is fixed; the seventh hinge member is a channel-shaped ear seat. The web portion of the channel-shaped ear seat is fixed to the linkage rod, and the two side plates are hinged to the rear end of the reinforcing support rod.

8. The single cross linkage type folding footrest according to claim 1, characterized in that: The fourth hinge member is replaced by a sixth hinge member. A seventh hinge member is installed on the inner linkage rod. A telescopic support rod is jointly installed between the ear seat of the sixth hinge member that is extra compared to the fourth hinge member and the seventh hinge member. The length of the telescopic support rod can be adjusted; the seventh hinge member is a channel-shaped ear seat. The web portion of the channel-shaped ear seat is fixed to the linkage rod, and the two side plates are hinged to the rear end of the telescopic support rod.

9. The single-cross linkage type folding footrest according to claim 1, wherein The fourth hinge is replaced with a sixth hinge. A seventh hinge is installed on the linkage rod located on the inner side. A reinforcing support rod is jointly installed between the ear seat that the sixth hinge has more than the fourth hinge and the seventh hinge, and the length of the reinforcing support rod is fixed. The seventh hinge is a grooved ear seat. The web part of the grooved ear seat is fixed to the linkage rod, and both side plates are hinged to the rear end of the reinforcing support rod. A combined dial is installed between the two front support rods. The combined dial is formed by rotatably connecting a first dial and a second dial. The outer end of each dial is hinged to the corresponding front support rod. The first hinge is replaced with an eighth hinge. The eighth hinge includes a second locking rod part for fixing the arc rod and a fourth ear seat for hinging to the outer end of the front support rod. The web part of the fourth ear seat is supported movably by the second locking rod part, and the rotation center line of the fourth ear seat is parallel to the length direction of the combined dial.

10. A split-type reclining chair, comprising a backrest support bracket, a footrest, and a chair cloth sleeved on the outer sides of the backrest support bracket and the footrest, characterized in that, The footrest is the single-cross linkage type folding footrest according to any one of claims 1 to 9.

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