Dining chair stable in installation

Abstract

The utility model belongs to the technical field of child dining chairs, and particularly relates to a stably-installed dining chair which comprises a seat and at least two supporting frames, the supporting frames and the seat are detachably connected through a connecting device, the connecting device comprises a first connecting piece and a second connecting piece which are in threaded connection, a first positioning part is arranged on the supporting frames or the seat, and a second positioning part is arranged on the second connecting piece. The first connecting piece and the second connecting piece are provided with a second anti-skid part and a second positioning part respectively, the first positioning part and the second positioning part are matched to avoid relative rotation of the second connecting piece and the supporting frame or the seat, and the second anti-skid part can abut against the seat or the supporting frame and increase resistance to rotation of the first connecting piece. The utility model aims to provide the dining chair which is convenient to assemble and produce and stable to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of children's dining chairs, in particular to a dining chair with stable installation. Background Art

[0002] Children's dining chairs refer to chairs specially used for children to eat. Most of them have higher support legs with seats for children provided on the support legs.

[0003] In order to facilitate the storage and transportation of dining chairs, the supporting legs of many children's dining chairs on the market are detachable structures, such as the children's dining chair disclosed in Chinese utility model patent CN 202223076975.1, which includes a seat body, side panels on both sides and a dining tray. The seat body includes a seat plate and a backrest, the side panels are provided with guide grooves, and the side panels are provided with U-shaped fixing parts. The U-shaped fixing parts are provided with a rotating shaft, which is easy to operate. In daily use, the child can be easily carried into the seat body of the dining chair from the front of the dining chair by rotating the dining tray, which saves time and effort for parents to use. The dining tray includes a dining tray back cover, and the U-shaped fixing part is connected to the dining tray back cover by fasteners, which increases the stability of the dining tray and the side panels in the fixed state, making the dining tray more stable, ensuring the comfort of children while dining, and also ensuring the safety of children when dining.

[0004] As can be seen from the drawings in the specification, in the above structure, the various components of the children's dining chair are relatively fixed by bolts. However, after long-term use, the bolts are easily loosened, causing the children's dining chair to shake or even fall apart. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a dining chair that is easy to assemble and produce and has stable installation.

[0006] The purpose of this utility model is achieved in this way:

[0007] A stably installed dining chair comprises a seat and at least two support frames, wherein the support frames and the seat are detachably connected via a connecting device, wherein the connecting device comprises a first connecting member and a second connecting member that are threadedly connected, a first positioning portion being provided on the support frame or the seat, and a second anti-slip portion and a second positioning portion being provided on the first connecting member and the second connecting member, respectively, wherein the first positioning portion cooperates with the second positioning portion to prevent relative rotation between the second connecting member and the support frame or the seat, and the second anti-slip portion can abut against the seat or the support frame and increase resistance to rotation of the first connecting member.

[0008] The utility model is further configured as follows: the first positioning portion is arranged on the seat, and a first anti-slip portion is arranged on the support frame; when the connecting device connects the support frame to the seat, the first anti-slip portion and the second anti-slip portion adapt to and increase the resistance when the first connecting member and the support frame rotate relative to each other.

[0009] The utility model is further configured as follows: a connecting rod is provided between the support frames, the connecting rod is detachably connected to the support frames through connecting devices, and a first positioning portion is provided on the support frames or the connecting rod, and the first positioning portion cooperates with the second positioning portion to prevent relative rotation between the second connecting member and the support frame or the connecting rod.

[0010] The utility model is further configured as follows: a first positioning portion is provided on the connecting rod, and a first anti-slip portion is provided on the support frame; when the connecting device connects the support frame to the connecting rod, the first anti-slip portion and the second anti-slip portion adapt to and increase the resistance when the first connecting member and the support frame rotate relative to each other.

[0011] The utility model is further configured as follows: the first anti-slip portion and the second anti-slip portion respectively include a plurality of first anti-slip teeth and a second anti-slip teeth, the first anti-slip teeth and the second anti-slip teeth engage with each other to increase the resistance when the first connecting member and the support frame rotate relative to each other; and external force can control the first connecting member and the second connecting member to rotate relative to each other, and cause the first anti-slip teeth and the second anti-slip teeth to disengage.

[0012] The utility model is further configured as follows: a first mounting hole and a second mounting hole are respectively provided on the support frame and the seat, a connecting device passes through the first mounting hole and the second mounting hole and fixes the support frame and the seat relative to each other, the first anti-slip teeth are arranged in a ring shape on the outer periphery of the first mounting hole, and / or the second anti-slip teeth are arranged in a ring shape on the first connecting member.

[0013] The present invention is further configured as follows: the first mounting hole and / or the second mounting hole is a countersunk hole, and the first positioning portion and / or the first anti-slip portion is arranged in the countersunk hole.

[0014] The utility model is further configured as follows: the support frame includes a detachably connected support body and a support foot, the lower end of the support body is provided with a mounting groove, a positioning protrusion is provided in the mounting groove, a first positioning hole adapted to the positioning protrusion is provided on the support foot, a second positioning hole adapted to the positioning protrusion is provided on the connecting rod, and a connecting device is provided on the support body, the connecting device passes through the positioning protrusion and is connected to the connecting rod, so that the support body, the support foot and the connecting rod are relatively fixed.

[0015] The present invention is further configured as follows: the positioning protrusion includes a third positioning portion and a fourth positioning portion respectively adapted to the first positioning hole and the second positioning hole, and the second positioning hole is an irregular hole, and the fourth positioning portion cooperates with the second positioning hole to prevent the connecting rod and the bracket body from rotating relative to each other.

[0016] The present invention is further configured as follows: one end of the first connecting member is arranged on the outside of the dining chair, and the second anti-slip portion is arranged on the outside of the seat or the support frame.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. In the present invention, the support frame and the seat are connected by the first connecting member and the second connecting member, which has a simple structure and is convenient for disassembly and installation. Moreover, since the first positioning portion and the second positioning portion cooperate to avoid relative rotation between the second connecting member and the support frame or the seat, the user does not need to actively control the second connecting member during the disassembly and installation of the dining chair, which facilitates the disassembly and installation of the first connecting member and the second connecting member. The provision of the second anti-slip portion can increase the resistance of the first connecting member during the rotation process, thereby avoiding accidental loosening of the first connecting member and the second connecting member during the use of the dining chair, which is conducive to the stable installation of the dining chair and convenient for users.

[0019] 2. The provision of the first anti-slip portion in the present invention is conducive to increasing the resistance during the rotation of the first connecting member, which can further improve the stability of the installation of the dining chair and prevent the dining chair from shaking or even falling apart; the provision of the connecting rod is conducive to the stable installation of the support frame and prevents the dining chair from deforming and shaking. The first positioning portion and the connecting device provided on the support frame or the connecting rod facilitate the disassembly and installation of the support frame and the connecting rod, and prevent the loose connection between the support frame and the connecting rod during use, which is conducive to the stable installation of the dining chair and is convenient for users to use.

[0020] 3. The provision of the first anti-slip teeth and the second anti-slip teeth in the present invention is conducive to increasing the resistance during the rotation of the first connecting member, avoiding accidental loosening of the first connecting member and the second connecting member during the use of the dining chair, which is conducive to the stable installation of the dining chair and convenient for users to use; the first anti-slip teeth and / or the second anti-slip teeth arranged in a ring facilitate the connection device to connect and fix different parts, and the first anti-slip teeth and the second anti-slip teeth can be connected and matched in time when connecting different parts, avoiding accidental loosening of the first connecting member and the second connecting member during use; the first positioning part and / or the first anti-slip part arranged in the countersunk hole avoid damage to the first positioning part or the first anti-slip part during the movement and transportation of the dining chair parts, and facilitate the disassembly movement of the dining chair.

[0021] 4. In the present invention, the bracket body, the supporting legs and the connecting rod are relatively fixed by a connecting device, which has a simple structure and is convenient for the quick assembly and disassembly of the dining chair supporting legs. The structure is also conducive to reducing the hole structure on the bracket body or the supporting legs, which is conducive to improving the structural strength of the bracket body or the supporting legs, thereby extending the service life of the dining chair supporting legs. The provision of the third positioning part and the fourth positioning part is conducive to the positioning and installation of the connecting rod and the bracket body. Since the second positioning hole is a special-shaped hole, the relative rotation of the connecting rod and the bracket body during use is avoided, which may cause the locking bolt to loosen.

[0022] 5. In the present invention, since one end of the first connecting member is arranged on the outside of the dining chair and the second anti-slip portion is arranged on the outside of the seat or the support frame, it is convenient for the user to control the rotation of the first connecting member through tools, thereby facilitating the assembly and disassembly of the dining chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 It is an explosion diagram of the utility model;

[0025] Figure 3 It is a partial cross-sectional view of the utility model;

[0026] Figure 4 This is one of the structural diagrams of the bracket body in the present utility model;

[0027] Figure 5 This is the second structural diagram of the bracket body in the present utility model;

[0028] Figure 6 This is one of the partial structural diagrams of the support leg in the utility model;

[0029] Figure 7 This is the second schematic diagram of the partial structure of the support leg in the utility model;

[0030] Figure 8 It is a structural diagram of the connecting device in the utility model;

[0031] Figure 9 This is a structural diagram of the first connecting member in the utility model;

[0032] Figure 10 It is a structural diagram of the second connecting member in the utility model;

[0033] Figure 11 It is a structural diagram of the connecting rod in the utility model;

[0034] Figure 12 It is a structural diagram of the seat in the utility model;

[0035] Figure 13 It is a structural schematic diagram of the middle gear lever of the utility model.

[0036] The meaning of the numbers in the figure are: 1-support frame; 2-bracket body; 21-side rod; 22-mounting rod; 23-positioning protrusion; 24-first mounting hole; 25-elastic hook; 26-mounting slot; 27-first positioning part; 29-first anti-slip part; 231-third positioning part; 232-fourth positioning part; 3-support foot; 31-vertical rod; 32-horizontal rod; 33-mounting part; 34-first positioning hole; 35-slot; 4-connecting device; 41-first connecting member; 42-second connecting member; 43-control part; 411-second anti-slip part; 421-second positioning part; 5-connecting rod; 51-third mounting hole; 52-storage slot; 6-seat; 61-second mounting hole; 7-gear lever; 71-fourth mounting hole. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to specific embodiments in conjunction with the accompanying drawings:

[0038] See also Figures 1 to 13 As shown, a stably installed dining chair includes a seat 6 and at least two support frames 1, wherein the support frame 1 and the seat 6 are detachably connected via a connecting device 4, wherein the connecting device 4 includes a first connecting member 41 and a second connecting member 42 that are threadedly connected, a first positioning portion 27 is provided on the support frame 1 or the seat 6, and a second anti-slip portion 411 and a second positioning portion 421 are provided on the first connecting member 41 and the second connecting member 42, respectively. The first positioning portion 27 cooperates with the second positioning portion 421 to prevent the second connecting member 42 from rotating relative to the support frame 1 or the seat 6, and the second anti-slip portion 411 can abut against the seat 6 or the support frame 1 and increase resistance to the rotation of the first connecting member 41. In this structure, the support frame 1 and the seat 6 are connected by the first connecting member 41 and the second connecting member 42. The structure is simple and convenient for disassembly and installation. Since the first positioning portion 27 and the second positioning portion 421 cooperate to avoid relative rotation between the second connecting member 42 and the support frame 1 or the seat 6, the user does not need to actively control the second connecting member 42 during the disassembly and installation of the dining chair, which facilitates the disassembly and installation of the first connecting member 41 and the second connecting member 42. The setting of the second anti-slip portion 411 can increase the resistance of the first connecting member 41 during the rotation process, and avoid accidental loosening of the first connecting member 41 and the second connecting member 42 during the use of the dining chair, which is conducive to the stable installation of the dining chair and convenient for users.

[0039] The first positioning portion 27 is arranged on the seat 6, and a first anti-slip portion 29 is arranged on the support frame 1; when the connecting device 4 connects the support frame 1 with the seat 6, the first anti-slip portion 29 is adapted to the second anti-slip portion 411 and increases the resistance when the first connecting member 41 and the support frame 1 rotate relative to each other. The setting of the first anti-slip portion 29 is conducive to increasing the resistance of the first connecting member 41 during the rotation process, which can further improve the stability of the installation of the dining chair and prevent the dining chair from shaking or even falling apart.

[0040] The first connecting member 41 is provided with a control unit 43, and the user can control the relative rotation of the first connecting member 41 and the second connecting member 42 through the control unit 43. The second connecting member 42 in the drawings of the utility model specification is also provided with a control unit 43.

[0041] In the present invention, the first positioning portion 27 can be set on the support frame 1, and in this case the first anti-slip portion 29 is set on the seat 6. The first positioning portion 27 can also be set on the seat 6, and in this case the first anti-slip portion 29 is set on the support frame 1. These two structures are equivalent. In the present invention, multiple connecting devices 4 are set on the seat 6 and the support frame 1, and the first positioning portion 27 and the first anti-slip portion 29 are both set on the seat 6 and the support frame 1.

[0042] The first anti-slip portion 29 and the second anti-slip portion 411 respectively include a plurality of first anti-slip teeth and a second anti-slip teeth, which are engaged with each other to increase the resistance when the first connecting member 41 and the support frame 1 rotate relative to each other; and the external force can control the relative rotation of the first connecting member 41 and the second connecting member 42, and disengage the first anti-slip teeth and the second anti-slip teeth. The setting of the first anti-slip teeth and the second anti-slip teeth is conducive to increasing the resistance during the rotation of the first connecting member 41, avoiding accidental loosening of the first connecting member 41 and the second connecting member 42 during use of the dining chair, which is conducive to the stable installation of the dining chair and convenient for users to use.

[0043] The support frame 1 and the seat 6 are respectively provided with a first mounting hole 24 and a second mounting hole 61. The connecting device 4 passes through the first mounting hole 24 and the second mounting hole 61 and fixes the support frame 1 and the seat 6 relatively. The first anti-slip teeth are arranged in a ring shape on the periphery of the first mounting hole 24, and / or the second anti-slip teeth are arranged in a ring shape on the first connecting member 41. The ring-shaped first anti-slip teeth and / or second anti-slip teeth facilitate the connecting device 4 to connect and fix different parts. When connecting different parts, the first anti-slip teeth and the second anti-slip teeth can be connected and matched in time to avoid accidental loosening of the first connecting member 41 and the second connecting member 42 during use. Preferably, the first anti-slip teeth and the second anti-slip teeth are respectively arranged in a ring shape on the periphery of the first mounting hole 24 and the first connecting member 41.

[0044] In this embodiment, the first mounting hole 24 and / or the second mounting hole 61 is a countersunk hole, and the first positioning portion 27 and / or the first anti-slip portion 29 are arranged in the countersunk hole. The first positioning portion 27 and / or the first anti-slip portion 29 arranged in the countersunk hole prevents the first positioning portion 27 or the first anti-slip portion 29 from being damaged during the movement and transportation of the dining chair parts, thereby facilitating the disassembly movement of the dining chair.

[0045] A connecting rod 5 is provided between the support frames 1, and the connecting rod 5 is detachably connected to the support frames 1 through the connecting devices 4, and a first positioning portion 27 is provided on the support frame 1 or the connecting rod 5. The first positioning portion 27 cooperates with the second positioning portion 421 to avoid relative rotation between the second connecting member 42 and the support frame 1 or the connecting rod 5. The setting of the connecting rod 5 is conducive to the stable installation of the support frame 1 and prevents deformation and shaking of the dining chair. The first positioning portion 27 and the connecting device 4 provided on the support frame 1 or the connecting rod 5 facilitate the disassembly and installation of the support frame 1 and the connecting rod 5, and avoid loose connection between the support frame 1 and the connecting rod 5 during use, which is conducive to the stable installation of the dining chair and convenient for users to use.

[0046] In the drawings of the present utility model specification, a receiving groove 52 is provided on the connecting rod 5, a third mounting hole 51 is provided on the side wall of the receiving groove 52, a first positioning portion 27 is provided on the side of the end of the third mounting hole 51, and the end of the second connecting member 42 is provided in the receiving groove 52, and the first positioning portion 27 is matched with the second positioning portion 421.

[0047] In this embodiment, a first positioning portion 27 is provided on the connecting rod 5, and a first anti-slip portion 29 is provided on the support frame 1; when the connecting device 4 connects the support frame 1 and the connecting rod 5, the first anti-slip portion 29 and the second anti-slip portion 411 adapt to each other and increase the resistance when the first connecting member 41 and the support frame 1 rotate relative to each other.

[0048] The support frame 1 includes a detachably connected support body 2 and a support foot 3, the lower end of the support body 2 is provided with a mounting groove 26, a positioning protrusion 23 is provided in the mounting groove 26, the support foot 3 is provided with a first positioning hole 34 adapted to the positioning protrusion 23, and the connecting rod 5 is provided with a second positioning hole adapted to the positioning protrusion 23, and the support body 2 is provided with a connecting device 4, the connecting device 4 passes through the positioning protrusion 23 and is connected to the connecting rod 5, so that the support body 2, the support foot 3 and the connecting rod 5 are relatively fixed. In this structure, the support body 2, the support foot 3 and the connecting rod 5 are relatively fixed by the connecting device 4, the structure is simple, and it is convenient for the rapid assembly and disassembly of the dining chair support legs, and this structure is conducive to reducing the hole structure on the support body 2 or the support foot 3, and is conducive to improving the structural strength of the support body 2 or the support foot 3, thereby extending the service life of the dining chair support legs.

[0049] The positioning protrusion 23 described in the present invention includes a third positioning portion 231 and a fourth positioning portion 232 respectively adapted to the first positioning hole 34 and the second positioning hole, and the second positioning hole is an irregular hole, and the fourth positioning portion 232 cooperates with the second positioning hole to prevent the connecting rod 5 and the bracket body 2 from rotating relative to each other. The setting of the third positioning portion 231 and the fourth positioning portion 232 is conducive to the positioning and installation of the connecting rod 5 and the bracket body 2. Since the second positioning hole is an irregular hole, the relative rotation of the connecting rod 5 and the bracket body 2 during use is avoided, which may cause the locking bolt to loosen.

[0050] The bracket body 2 is provided with an elastic hook 25, and the support foot 3 is provided with a mounting portion 33 adapted to the mounting groove 26 and a slot 35 adapted to the elastic hook 25. The elastic hook 25 cooperates with the slot 35 to keep the positioning protrusion 23 matched with the first positioning hole 34. The setting of the elastic hook 25 and the slot 35 facilitates the fixed installation of the mounting portion 33 and the mounting slot 26. During the assembly process of the dining chair support leg, the bracket body 2 and the support foot 3 can be relatively fixed first, and then the connecting rod 5 can be installed to facilitate the assembly of the dining chair support leg. In this structure, even if the locking bolt is loosened, the bracket body 2 and the support foot 3 can be stably installed, which is convenient for users to use and is conducive to improving the safety of the dining chair support leg.

[0051] The bracket body 2 described in this embodiment includes two side rods 21, and the upper part of the two side rods 21 is provided with a mounting rod 22 for installing the seat 6. The two side rods 21 and the mounting rod 22 are combined to form an inverted U-shaped structure. Three connecting rods 5 are provided between the two support frames 1. The three connecting rods 5 are distributed in a triangular shape. The U-shaped structure of the bracket body 2 is beneficial to reducing the parts of the dining chair support legs and facilitating the assembly of the dining chair support legs. The three connecting rods 5 distributed in a triangular shape are beneficial to improving the structural strength of the dining chair support legs and avoiding damage to the dining chair support legs caused by the two support frames 1 flipping over and approaching each other.

[0052] The support foot 3 includes a U-shaped or H-shaped horizontal rod 32 and two vertical rods 31. The two vertical rods 31 are respectively connected to the two side rods 21. The side rods 21 are each provided with a mounting groove 26 and an elastic hook 25. The vertical rods 31 are each provided with a mounting portion 33 and a slot 35.

[0053] Preferably, one end of the first connecting member 41 is arranged on the outside of the dining chair, and the second anti-slip portion 411 is arranged on the outside of the seat 6 or the support frame 1. This structure makes it convenient for the user to control the rotation of the first connecting member 41 through tools, thereby facilitating the assembly and disassembly of the dining chair.

[0054] A shift lever 7 is provided on the front side of the seat 6, a fourth mounting hole 71 is provided on the shift lever 7, a first positioning portion 27 is provided on the side of the fourth mounting hole 71, and the connecting device 4 passes through the fourth mounting hole 71 and detachably connects the shift lever 7, the seat 6 and the support frame 1.

[0055] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dining chair with stable installation, comprising a seat (6) and at least two support frames (1), characterized in that: The support frame (1) and the seat (6) are detachably connected via a connecting device (4). The connecting device (4) comprises a first connecting member (41) and a second connecting member (42) that are threadedly connected. A first positioning portion (27) is provided on the support frame (1) or the seat (6). A second anti-slip portion (411) and a second positioning portion (421) are provided on the first connecting member (41) and the second connecting member (42), respectively. The first positioning portion (27) cooperates with the second positioning portion (421) to prevent the second connecting member (42) from rotating relative to the support frame (1) or the seat (6). The second anti-slip portion (411) can abut against the seat (6) or the support frame (1) and increase resistance to the rotation of the first connecting member (41).

2. The stable dining chair according to claim 1, characterized in that: The first positioning portion (27) is provided on the seat (6), and the support frame (1) is provided with a first anti-slip portion (29); when the connecting device (4) connects the support frame (1) and the seat (6), the first anti-slip portion (29) and the second anti-slip portion (411) are adapted to increase the resistance when the first connecting member (41) and the support frame (1) rotate relative to each other.

3. The stable dining chair according to claim 1, characterized in that: A connecting rod (5) is provided between the support frames (1), and the connecting rod (5) is detachably connected to the support frames (1) via connecting devices (4). A first positioning portion (27) is provided on the support frame (1) or the connecting rod (5), and the first positioning portion (27) cooperates with the second positioning portion (421) to prevent relative rotation between the second connecting member (42) and the support frame (1) or the connecting rod (5).

4. The stably installed dining chair according to claim 3, characterized in that: The connecting rod (5) is provided with a first positioning portion (27), and the support frame (1) is provided with a first anti-slip portion (29); when the connecting device (4) connects the support frame (1) and the connecting rod (5), the first anti-slip portion (29) and the second anti-slip portion (411) are adapted to increase the resistance when the first connecting member (41) and the support frame (1) rotate relative to each other.

5. A dining chair with stable installation according to claim 2 or 4, characterized in that: The first anti-slip portion (29) and the second anti-slip portion (411) respectively include a plurality of first anti-slip teeth and a second anti-slip teeth, and the first anti-slip teeth and the second anti-slip teeth are engaged with each other to increase the resistance when the first connecting member (41) and the support frame (1) rotate relative to each other; and an external force can control the relative rotation of the first connecting member (41) and the second connecting member (42) and cause the first anti-slip teeth and the second anti-slip teeth to disengage.

6. The stably installed dining chair according to claim 5, characterized in that: The support frame (1) and the seat (6) are respectively provided with a first mounting hole (24) and a second mounting hole (61); the connecting device (4) passes through the first mounting hole (24) and the second mounting hole (61) and fixes the support frame (1) and the seat (6) relative to each other; the first anti-slip teeth are arranged in an annular shape on the outer periphery of the first mounting hole (24), and / or the second anti-slip teeth are arranged in an annular shape on the first connecting member (41).

7. The stably installed dining chair according to claim 6, characterized in that: The first mounting hole (24) and / or the second mounting hole (61) are countersunk holes, and the first positioning portion (27) and / or the first anti-slip portion (29) are arranged in the countersunk holes.

8. The stably installed dining chair according to claim 3 or 4, characterized in that: The support frame (1) comprises a detachably connected support body (2) and a support leg (3); a mounting groove (26) is provided at the lower end of the support body (2); a positioning protrusion (23) is provided in the mounting groove (26); a first positioning hole (34) adapted to the positioning protrusion (23) is provided on the support leg (3); a second positioning hole adapted to the positioning protrusion (23) is provided on the connecting rod (5); and a connecting device (4) is provided on the support body (2); the connecting device (4) passes through the positioning protrusion (23) and is connected to the connecting rod (5), so that the support body (2), the support leg (3) and the connecting rod (5) are relatively fixed.

9. The stably installed dining chair according to claim 8, characterized in that: The positioning protrusion (23) includes a third positioning portion (231) and a fourth positioning portion (232) respectively adapted to the first positioning hole (34) and the second positioning hole, and the second positioning hole is a special-shaped hole. The fourth positioning portion (232) cooperates with the second positioning hole to prevent the connecting rod (5) and the bracket body (2) from rotating relative to each other.

10. The dining chair with stable installation according to claim 1, characterized in that: One end of the first connecting member (41) is arranged on the outside of the dining chair, and the second anti-slip portion (411) is arranged on the outside of the seat (6) or the support frame (1).

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