Folding chair convenient to store

Abstract

The utility model relates to the technical field of folding chairs with tenon-and-mortise structural design, and discloses a folding chair convenient to store, which comprises two first support legs and two second support legs, the upper ends of the two first support legs and the two second support legs are respectively and fixedly connected with bearing plates, a first woven mesh is arranged between the two bearing plates, and a second woven mesh is arranged between the two bearing plates. The upper sides of the two bearing plates are respectively and fixedly connected with a supporting plate, one side of each supporting plate is respectively and fixedly connected with a limiting bolt, and each limiting bolt is formed by splicing a plurality of partition plates which are distributed in a circumferential array mode. And the folding chair can be folded and contracted in multiple dimensions, so that the occupied space of the folding chair is reduced, and the effect of convenient storage is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding chairs with mortise and tenon structures, in particular to a folding chair that is easy to store. Background Art

[0002] A folding chair is a piece of furniture that is easy to store and carry. Its most important feature is that the chair can be folded, making it easy to store and carry. With the changes in human activities in modern society, the use of folding chairs is no longer limited to family life. Folding chairs are also widely used in office workers' lunch breaks and outdoor camping.

[0003] However, most of the existing folding chairs are made of metal nails, pipes and plastics. After long-term use, the metal components are very easy to oxidize and rust, and the metal hardness is reduced. Therefore, in life, it is often found that the folding chairs that have been used for a period of time are slowly twisted and no longer stable. Moreover, once the folding chairs connected by nails and steel pipes are damaged and need to be repaired, it will be very difficult to disassemble and replace them. Sometimes, irreversible damage occurs, which reduces the service life of the folding chair. Based on this, a folding chair that is easy to store and is designed based on a mortise and tenon structure is proposed. Utility Model Content

[0004] In order to solve the technical problem of storage of folding chairs, the utility model provides a folding chair which is easy to store.

[0005] The utility model is implemented by the following technical scheme: a folding chair that is easy to store, comprising two No. 1 supporting legs and two No. 2 supporting legs, the upper ends of the two No. 1 supporting legs and the two No. 2 supporting legs are respectively and commonly fixedly connected with a load-bearing plate, a first woven net is arranged between the two load-bearing plates, the upper sides of the two load-bearing plates are respectively fixedly connected with the supporting plates, one side of the two support plates is respectively fixedly connected with a limiting latch, the limiting latch is composed of a plurality of partitions distributed in a circular array, one side of the two limiting latches is provided with a backrest folding mechanism that is convenient for the folding of the folding chair, and the two load-bearing plates are located below the first woven net and are provided with a plurality of mortise and tenon running pin mechanisms that can shorten the distance width between the two load-bearing plates.

[0006] As a further improvement of the above scheme, the backrest folding mechanism includes a fixed plate plugged into the limit pin, one side of the fixed plate is provided with a limit hole matching the limit pin configuration, and one side of the fixed plate is provided with a limit clamp mechanism to prevent the fixed plate from falling off.

[0007] As a further improvement of the above scheme, the limiting clamp mechanism includes a limiting rod fixedly connected to the inner side of the limiting socket, the inner side of the support plate is movably connected to the outer side of the limiting rod, one end of the limiting rod is sleeved with an anti-slip ring, the anti-slip ring and the limiting rod are respectively provided with No. 2 tenon grooves, the inner sides of the two No. 2 tenon grooves are jointly provided with No. 2 wedge nails, the upper sides of the two fixed plates are respectively fixedly connected with connecting plates, and one end of the two connecting plates is provided with a connecting plate distance adjusting mechanism for adjusting the distance between the two connecting plates.

[0008] As a further improvement of the above scheme, the connecting plate distance adjusting mechanism includes tenon rods fixedly connected to one end of the two connecting plates, one end of the two tenon rods is fixedly connected to a palm-type overlapping plate, one end of the two palm-type overlapping plates is fixedly connected to a clamping plate, one end of the two tenon rods is respectively provided with a culvert groove that cooperates with the clamping plate, and one side of the two palm-type overlapping plates is provided with an overlapping plate fixing mechanism for fixedly connecting the two palm-type overlapping plates.

[0009] As a further improvement of the above scheme, the overlapping plate fixing mechanism includes a plurality of No. 1 tenon grooves respectively opened on one side of the two palm-type overlapping plates, and a No. 1 wedge nail is arranged between the inner sides of two No. 1 tenon grooves adjacent to each other.

[0010] As a further improvement of the above scheme, the mortise and tenon walking pin mechanism includes a plurality of No. 2 walking beams fixedly connected to the inner side of the load-bearing plate on one side of the folding chair, and a plurality of No. 1 walking beams fixedly connected to the inner side of the load-bearing plate on the other side of the folding chair, each pair of No. 1 walking beams and No. 2 walking beams close to each other cooperate with each other, and a limited position holding mechanism is provided between the No. 1 walking beams and No. 2 walking beams.

[0011] As a further improvement of the above-mentioned scheme, the limit clamping mechanism includes a walking horse limit groove and a walking horse placement groove respectively opened on one side of the No. 2 walking horse beam, and one side of the No. 1 walking horse beam is fixedly connected with a walking horse pin which is slidably connected to the inner side of the walking horse limit groove, and the walking horse pin is first placed in the walking horse placement groove and then pushed into the walking horse limit groove.

[0012] As a further improvement of the above solution, a No. 2 woven mesh is arranged between the two connecting plates.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model cooperates with the mortise and tenon walking pin mechanism through the backrest folding mechanism. When the distance between the load-bearing plates on both sides is reduced by the No. 1 walking beam and the No. 2 walking beam, the limit pin is disengaged from the limit socket, and the positioning relationship between the two disappears. At this time, the No. 2 woven net together with the two connecting plates can be rotated along the limit rod to complete the folding, which can reduce the space occupied by the folding chair and facilitate storage and carrying.

[0015] 2. The folding chair of the utility model is designed and manufactured with mortise and tenon structure as the whole, which has the characteristics of simple disassembly and easy assembly. In addition, when the two wooden parts of the folding chair are damaged, it is convenient to repair and replace the parts. Compared with the metal frame, the folding chair with wooden structure is not easy to oxidize after long-term use. The overall frame is more stable, has a longer service life, and is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a foldable chair that is easy to store provided by the utility model;

[0017] Figure 2 for Figure 1 Bottom view of

[0018] Figure 3 for Figure 1 A top view of

[0019] Figure 4 for Figure 1 Partial schematic diagram of the distance adjustment mechanism of the middle connecting plate;

[0020] Figure 5 for Figure 4 Side view of

[0021] Figure 6 for Figure 1 Partial schematic diagram of the middle mortise and tenon running pin mechanism;

[0022] Figure 7 for Figure 6 A top view of

[0023] Figure 8 for Figure 6 Side view of

[0024] Fig. 9 for Figure 1 A partial schematic diagram of the middle backrest folding mechanism;

[0025] Fig.10 for Fig. 9 Side view of

[0026] Fig.11 for Fig. 9 Top view of the .

[0027] Description of main symbols:

[0028] 1. Support leg No. 1; 2. Support leg No. 2; 3. Load-bearing plate; 4. Walking beam No. 1; 5. Walking beam No. 2; 6. Walking limit slot; 7. Walking placement slot; 8. First woven mesh; 9. Connecting plate; 10. No. 2 woven mesh; 11. Tenon rod; 12. Clamp; 13. Tenon slot No. 1; 14. Wedge nail No. 1; 15. Wedge nail No. 2; 16. Anti-slip ring; 17. Limit rod; 18. Fixed plate; 19. Support plate; 20. Tenon slot No. 2; 21. Limit pin; 22. Culvert; 23. Palm-type overlap plate; 24. Walking pin; 25. Limit socket. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] Example:

[0031] Please combine Figure 1-Figure 9 A folding chair that is easy to store in this embodiment includes two No. 1 support legs 1 and two No. 2 support legs 2, the upper ends of the two No. 1 support legs 1 and the two No. 2 support legs 2 are respectively fixedly connected with a load-bearing plate 3, a first woven mesh 8 is arranged between the two load-bearing plates 3, the upper sides of the two load-bearing plates 3 are respectively fixedly connected with a support plate 19, one side of the two support plates 19 is respectively fixedly connected with a limit pin 21, the limit pin 21 is composed of a plurality of partitions distributed in a circular array, a circular limit hole is opened at the center of the limit pin 21, the limit rod 17 passes through the limit hole, one side of the two limit pins 21 is provided with a backrest folding mechanism that is easy to fold the folding chair, and the two load-bearing plates 3 are located below the first woven mesh 8 and are provided with a plurality of mortise and tenon running pin mechanisms that can shorten the distance width between the two load-bearing plates 3.

[0032] Please combine Figure 1 , Fig. 9 , Fig.10 and Fig.11 As shown, the backrest folding mechanism includes a fixed plate 18 plugged into a limit pin 21, and a limit hole 25 matching the configuration of the limit pin 21 is opened on one side of the fixed plate 18, and the limit pin 21 can be inserted into the limit hole 25. In this embodiment, the limit hole 25 is composed of 12 cavities with an interval of 30 degrees, that is, each grid can be rotated 30 degrees to adjust the inclination of the folding chair backrest and improve the sitting posture of the human body, but is not limited to the 12-speed adjustment system. A limit clamp mechanism is set on one side of the fixed plate 18 to prevent the fixed plate 18 from falling off.

[0033] Please combine Fig.10As shown, the limiting clamp mechanism includes a limiting rod 17 fixedly connected to the inner side of the limiting socket 25. It should be noted that the length of the limiting rod 17 needs to be determined in combination with the length of the running limiting groove 6. The No. 2 wedge nail 15 can be used to locate the position of the anti-slip ring 16 on the No. 2 tenon groove 20. The inner side of the support plate 19 is movably connected to the outer side of the limiting rod 17. One end of the limiting rod 17 is sleeved with the anti-slip ring 16. The anti-slip ring 16 and the limiting rod 17 are respectively provided with No. 2 tenon grooves 20. No. 2 wedge nails 15 are commonly provided on the inner sides of the two No. 2 tenon grooves 20. The upper sides of the two fixed plates 18 are respectively fixedly connected with connecting plates 9, and one end of the two connecting plates 9 is provided with a connecting plate distance adjusting mechanism for adjusting the distance between the two connecting plates 9.

[0034] Please combine Figure 1 , Figure 4 and Figure 5 As shown, the connecting plate distance adjustment mechanism includes a tenon rod 11 fixedly connected to one end of the two connecting plates 9, one end of the two tenon rods 11 is fixedly connected to a palm-type overlapping plate 23, one end of the two palm-type overlapping plates 23 is fixedly connected to a clamping plate 12, one end of the two tenon rods 11 is respectively provided with a culvert 22 that cooperates with the clamping plate 12, one side of the two palm-type overlapping plates 23 is provided with an overlapping plate fixing mechanism for fixing the two palm-type overlapping plates 23, the clamping plate 12 can choose the length of entering the culvert 22, and keep it consistent with the contraction length in the mortise and tenon running pin mechanism, at this time, the two palm-type overlapping plates 23 are positioned by a No. 1 wedge nail 14 to ensure the stability of the entire folding chair.

[0035] Please combine Figure 4 and Figure 5 As shown, the overlapping plate fixing mechanism includes four No. 1 dowel grooves 13 respectively opened on one side of the two palm-type overlapping plates 23. In this embodiment, the number of the No. 1 dowel grooves 13 is 4, and the specific number needs to be determined according to the specific situation. A No. 1 wedge nail 14 is arranged between the inner sides of two No. 1 dowel grooves 13 close to each other. It should be noted that the No. 1 dowel groove 13 can be opened half-through, and in this embodiment, it is opened fully through.

[0036] Please combine Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the mortise and tenon walking pin mechanism includes two No. 2 walking beams 5 fixedly connected to the inner side of the load-bearing plate 3 on one side of the folding chair. Figure 2 The number of mortise and tenon walking pin mechanisms shown in the present embodiment is 2, which is for demonstration only. The number of mortise and tenon walking pin mechanisms in a specific folding chair is recommended to be at least 4. Two No. 1 walking beams 4 are fixedly connected to the inner side of the load-bearing plate 3 on the other side of the folding chair. Each pair of No. 1 walking beams 4 and No. 2 walking beams 5 that are close to each other cooperate with each other, and a limited position holding mechanism is provided between the No. 1 walking beam 4 and the No. 2 walking beam 5.

[0037] Please combine Figure 6 , Figure 7 and Figure 8 The shown limit clamping mechanism includes a walking horse limit groove 6 and a walking horse placement groove 7 respectively opened on one side of the No. 2 walking horse beam 5, and a walking horse pin 24 is fixedly connected to one side of the No. 1 walking horse beam 4 and is slidably connected to the inner side of the walking horse limit groove 6. The walking horse pin 24 is first placed in the walking horse placement groove 7 and then pushed into the walking horse limit groove 6. When disassembly is required, the walking horse pin 24 can be taken out from the walking horse placement groove 7.

[0038] Please combine Figure 1 As shown, a No. 2 braided mesh 10 is arranged between the two connecting plates 9 .

[0039] The implementation principle of a folding chair that is easy to store in the embodiment of the present application is as follows: when the folding chair needs to be folded, first remove the No. 1 wedge nail 14 from the No. 1 tenon groove 13, and then push the load-bearing plates 3 on both sides from the outside to the inside to get closer to each other. At this time, the running pin 24 on the No. 1 running beam 4 slides along the running limit groove 6. Due to the fixing effect of the No. 2 wedge nail 15 on the anti-slip ring 16 through the No. 2 tenon groove 20, the support plate 19 cannot be detached from the limit rod 17 at this time, which can ensure that the running pin 24 cannot be pulled out of the running placement groove 7. Based on the above, the limit pin 21 and the limit socket 25 are disengaged from contact, and the two connecting plates 9 can rotate along the limit rod 17 together with the No. 2 woven mesh 10, thereby realizing the folding function of the folding chair backrest and the function of the two load-bearing plates 3 of the folding chair shrinking and approaching each other.

[0040] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A folding chair that is easy to store, comprising two No. 1 support legs (1) and two No. 2 support legs (2), characterized in that: The upper ends of the two No. 1 support legs (1) and the two No. 2 support legs (2) are respectively fixedly connected to a load-bearing plate (3), a first woven net (8) is arranged between the two load-bearing plates (3), the upper sides of the two load-bearing plates (3) are respectively fixedly connected to a support plate (19), one side of the two support plates (19) is respectively fixedly connected to a limit pin (21), the limit pin (21) is composed of a plurality of partitions arranged in a circumferential array, one side of the two limit pins (21) is provided with a backrest folding mechanism for facilitating the folding of the folding chair, and the two load-bearing plates (3) are located below the first woven net (8) and are provided with a plurality of mortise and tenon running pin mechanisms that can shorten the distance between the two load-bearing plates (3).

2. A foldable chair that is easy to store as claimed in claim 1, characterized in that: The backrest folding mechanism comprises a fixed plate (18) plugged into a limit pin (21), one side of the fixed plate (18) is provided with a limit plug hole (25) configured to match the limit pin (21), and one side of the fixed plate (18) is provided with a limit clamp mechanism for preventing the fixed plate (18) from falling off.

3. A foldable chair that is easy to store as claimed in claim 2, characterized in that: The limiting clamp mechanism comprises a limiting rod (17) fixedly connected to the inner side of the limiting socket (25); the inner side of the supporting plate (19) is movably connected to the outer side of the limiting rod (17); one end of the limiting rod (17) is sleeved with an anti-slip ring (16); the anti-slip ring (16) and the limiting rod (17) are respectively provided with a No. 2 tenon groove (20); the inner sides of the two No. 2 tenon grooves (20) are commonly provided with a No. 2 wedge nail (15); the upper sides of the two fixing plates (18) are respectively fixedly connected with connecting plates (9); one end of the two connecting plates (9) is provided with a connecting plate distance adjustment mechanism for adjusting the distance between the two connecting plates (9).

4. A foldable chair that is easy to store as claimed in claim 3, characterized in that: The connecting plate distance adjustment mechanism comprises a tenon rod (11) fixedly connected to one end of two connecting plates (9), one end of the two tenon rods (11) is fixedly connected to a palm-type overlapping plate (23), one end of the two palm-type overlapping plates (23) is fixedly connected to a clamping plate (12), one end of the two tenon rods (11) is respectively provided with a culvert (22) cooperating with the clamping plate (12), and one side of the two palm-type overlapping plates (23) is provided with an overlapping plate fixing mechanism for fixing the two palm-type overlapping plates (23).

5. The foldable chair for easy storage as claimed in claim 4, characterized in that: The overlapping plate fixing mechanism comprises a plurality of No. 1 tenon grooves (13) respectively opened on one side of two palm-type overlapping plates (23), and a No. 1 wedge nail (14) is arranged between the inner sides of two No. 1 tenon grooves (13) adjacent to each other.

6. The foldable chair for easy storage as claimed in claim 1, characterized in that: The mortise and tenon walking pin mechanism comprises a plurality of No. 2 walking beams (5) fixedly connected to the inner side of a load-bearing plate (3) on one side of the folding chair, and a plurality of No. 1 walking beams (4) fixedly connected to the inner side of the load-bearing plate (3) on the other side of the folding chair, each pair of the No. 1 walking beams (4) and the No. 2 walking beams (5) close to each other cooperate with each other, and a limited position clamping mechanism is provided between the No. 1 walking beams (4) and the No. 2 walking beams (5).

7. The foldable chair for easy storage as claimed in claim 6, characterized in that: The limit clamping mechanism comprises a running horse limit groove (6) and a running horse placement groove (7) respectively provided on one side of the second running horse beam (5); a running horse pin (24) slidably connected to the inner side of the running horse limit groove (6) is fixedly connected to one side of the first running horse beam (4); the running horse pin (24) is first placed in the running horse placement groove (7) and then pushed into the running horse limit groove (6).

8. The foldable chair for easy storage as claimed in claim 3, characterized in that: A No. 2 braided mesh (10) is arranged between the two connecting plates (9).

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