Double folding chair

Abstract

A double-person folding chair comprises a front cross assembly, a rear cross assembly, middle cross assemblies, backrest supporting rods, backrest rods and grab rails, and the middle cross assemblies are arranged between the middle and the two ends of the front cross assembly and the rear cross assembly; two symmetrical pivoting seats are arranged at the upper end of the backrest connecting seat, and a tubular sleeving opening is formed in the lower end of the backrest connecting seat; the middle and two ends of the rear cross assembly extend upwards from the bottom end to form backrest supporting rods, and the upper end of the middle backrest supporting rod located in the middle is sleeved with a sleeving opening of the backrest connecting seat; the inner ends of the two backrest rods are respectively pivoted in the pivoting seats on the backrest connecting seat, the outer ends of the two backrest rods are respectively pivoted at the rear ends of the grab rails after being supported by the backrest supporting rods at the two ends, and the front ends of the grab rails are pivoted at the two outer ends of the front cross assembly. The double folding chair disclosed by the utility model has the effects of convenience in use and stability and safety in supporting.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, and more particularly to a double folding chair. Background Art

[0002] Among the leisure chairs used in daily life, folding chairs are popular for their simple structure and light weight. They can be placed directly at home or in leisure places, or used outdoors as beach chairs. However, most folding chairs on the market are designed for single use. Each folding chair can only accommodate one person. When using it outdoors with a large group of people, it is inconvenient to carry many folding chairs. Utility Model Content

[0003] The purpose of the utility model is to provide a stable and safe double folding chair.

[0004] In order to achieve the above objectives, the solution of the present invention is:

[0005] A double folding chair comprises a front cross assembly, a rear cross assembly, an intermediate cross assembly, a backrest support rod, a backrest rod, and an armrest rod. An intermediate cross assembly is provided between the middle and both ends of the front cross assembly and the rear cross assembly.

[0006] It also includes a backrest connecting seat, the upper end of which is provided with two symmetrical pivot seats, and the lower end of which is provided with a tubular sleeve;

[0007] A backrest support rod extends upward from the bottom end in the middle and both ends of the rear cross assembly, and the upper end of the middle backrest support rod is sleeved in the socket of the backrest connecting seat;

[0008] The inner ends of the two backrest rods are respectively pivotally connected to the pivot seats on the backrest connecting seat, and the outer ends of the two backrest rods are respectively pivotally connected to the rear end of the armrest rod after being supported by the backrest support rods located at both ends. The front end of the armrest rod is pivotally connected to the two outer ends of the front cross component; each backrest rod includes a first backrest rod and a second backrest rod, and the first backrest rod and the second backrest rod are pivotally connected by a backrest pivot member.

[0009] Furthermore, the upper surface of the backrest connecting seat is a pivot plane, the pivot seat is arranged on the pivot plane, the outer end opening of the pivot seat faces obliquely rearward, and the socket is arranged in the middle of the lower surface of the pivot plane.

[0010] Furthermore, the lower surface of the pivot plane can be gradually tapered downward to provide a pair of side ears located on the side surfaces of the socket.

[0011] Furthermore, the front cross assembly and the rear cross assembly are arranged in parallel; the front cross assembly includes two groups of front cross rods pivoted continuously, and the rear cross assembly includes two groups of rear cross rods pivoted continuously; the middle cross assembly includes three groups of middle cross rods, and the front and rear ends of the two groups of middle cross rods located on both sides are respectively pivoted to the outer ends of the two groups of front cross rods and the outer ends of the two groups of rear cross rods, and the front and rear ends of the other group of middle cross rods are respectively pivoted to the pivot joints in the middle of the two front cross rods and the pivot joints in the middle of the two rear cross rods; the lower end of the middle backrest support rod is pivoted to the pivot joint between the two groups of rear cross rods, and the upper part of the middle backrest support rod is provided with an inclined section tilted backward.

[0012] Furthermore, the inner end of the first backrest rod is pivotally connected to the pivot seat of the backrest connecting seat, the outer end of the first backrest rod is pivotally connected to the inner end of the second backrest rod through the backrest pivot member, and the outer end of the second backrest rod is pivotally connected to the rear end of the armrest rod.

[0013] Furthermore, the upper ends of the backrest support rods at both ends are pivotally connected to the backrest support seats, and the two second backrest rods are respectively supported by the backrest support seats and then pivotally connected to the rear end of the handrail rod.

[0014] Furthermore, the backrest pivot member is located between the backrest connecting seat and the backrest supporting seat. The backrest pivot member is a long arc shape. The two ends and the lower end of the backrest pivot member form openings for the first backrest rod and the second backrest rod to pivot and rotate with each other.

[0015] Furthermore, the rear end of the armrest rod is pivotally connected to an armrest pivot seat, the front part of the armrest pivot seat is pivoted to the rear end of the armrest rod, the rear part of the armrest pivot seat is sleeved on the front end of the second backrest rod, and the armrest rod is rotatable relative to the front part of the armrest pivot seat.

[0016] Furthermore, the backrest rod and the armrest rod are arc-shaped rods bent inwardly; the front end of the armrest rod is pivotally connected to the armrest seats at the two outer ends of the front cross component, and extends forward to have a curved section.

[0017] Furthermore, cross pivot members are provided at the intersections of the front cross bar, the rear cross bar and the middle cross bar.

[0018] By adopting the above solution, the double folding chair of the present invention can be folded by pivoting the front cross assembly, rear cross assembly, middle cross assembly, backrest support rod, backrest rod, and armrest rods. It is easy to operate and convenient to carry, and when unfolded, it meets the functions of a double folding chair. In addition, the middle backrest support rod of the present invention is socketed into the socket of the backrest connecting seat. When the user leans back, the socket can stabilize the backrest and prevent it from tilting backward due to force, thus avoiding problems such as twisting and shaking of the backrest support, and ensuring safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the double folding chair of the present invention in the unfolded state.

[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0021] Figure 3 This is a schematic diagram of the double folding chair of the present invention in a semi-folded state.

[0022] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0023] Figure 5 This is a schematic diagram of the double folding chair of the present invention in a folded state.

[0024] Figure 6 for Figure 5 A partial enlarged view of point C in the middle.

[0025] Description of Figure Numbers:

[0026] 10 front cross assembly; 1 front cross rod; 11 front pivot member;

[0027] 20 rear cross assembly; 2 rear cross rod; 21 rear pivot member;

[0028] 30 middle cross assembly; 3 middle cross rod; 31 chair leg connecting seat;

[0029] 4 backrest support rod; 41 middle backrest support rod; 411 tilt section;

[0030] 5 backrest connecting seat; 51 socket; 511 side ear piece; 52 pivot plane; 521 pivot seat;

[0031] 6 backrest rod; 61 first backrest rod; 611 backrest pivot member; 62 second backrest rod; 621 backrest support seat;

[0032] 7 Handrail rod; 71 curved section; 72 Handrail pivot seat; 721 Front portion of the handrail pivot seat; 722 Rear portion of the handrail pivot seat. DETAILED DESCRIPTION

[0033] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0034] See Figures 1-6 As shown, the utility model discloses a double folding chair, comprising a front cross assembly 10, a rear cross assembly 20, an intermediate cross assembly 30, a backrest support rod 4, a backrest rod 6, and an armrest rod 7. The intermediate cross assembly 30 is provided between the middle and both ends of the front cross assembly 10 and the rear cross assembly 20, and the ends of the intermediate cross assembly 30 are respectively pivotally connected to the front cross assembly 10 and the rear cross assembly 20;

[0035] It also includes a backrest connecting seat 5, the upper end of which is provided with two symmetrical pivot seats 521, and the lower end of which is provided with a tubular socket 51;

[0036] The backrest support rods 4 extend upward from the bottom end in the middle and both ends of the rear cross assembly 20. The upper end of the middle backrest support rod 41 is sleeved in the socket 51 of the backrest connecting seat 5.

[0037] The inner ends of the two backrest rods 6 are respectively pivoted in the pivot seats 521 provided on the backrest connecting seat 5, and the outer ends of the two backrest rods 6 are respectively pivoted to the rear end of the armrest rod 7 after being supported by the backrest support rods 4 located at both ends, and the front end of the armrest rod 7 is pivoted to the two outer ends of the front cross component 10; each backrest rod 6 includes a first backrest rod 61 and a second backrest rod 62, and the first backrest rod 61 and the second backrest rod 62 are pivoted through a backrest pivot member 611.

[0038] The key to this embodiment is that the middle backrest support rod 41 is socketed in the socket 51 of the backrest connecting seat 5 by means of a socket connection. When the user leans back, the socket 51 can play a stabilizing role, preventing the backrest from tilting backward due to force, and avoiding the user from sitting unsteadily due to twisting and shaking of the backrest support, thereby ensuring safety and stability.

[0039] Specifically, to enhance stability, the upper surface of the backrest connecting base 5 is formed into a pivot plane 52. A pivot seat 521 is disposed on the pivot plane 52. The outer end of the pivot seat 521 opens obliquely rearward, allowing the inner end of the first backrest rod 61 to be smoothly pivoted within the pivot seat 521. The socket 51 is disposed in the middle of the lower surface of the pivot plane 52. Furthermore, a pair of side ears 511 are disposed on either side of the lower surface of the pivot plane 52, tapering downwardly to enhance the support stability of the pivot plane.

[0040] In this embodiment of the double chair structure, a front cross assembly 10 and a rear cross assembly 20 are arranged in parallel. The front cross assembly 10 comprises two sets of continuously pivoted front cross bars 1, which are pivoted front and back to form the front elevation of the chair. The rear cross assembly 20 comprises two sets of continuously pivoted rear cross bars 2. The middle cross assembly 30 comprises three sets of spaced-apart middle cross bars 3. The front and rear ends of the two sets of middle cross bars 3 on either side are pivoted to the outer ends of the two sets of front cross bars 1 and the outer ends of the two sets of rear cross bars 2, respectively. The front and rear ends of the other set of middle cross bars 3 are pivoted to the middle pivot point between the two sets of front cross bars 1 and the middle pivot point between the two rear cross bars 2. Thus, the double chair is divided by the middle cross bar 3, with a front cross bar 1, a rear cross bar 2, and a middle cross bar 3 on each side, forming the basic framework of the chair. The lower end of the middle backrest support rod 41 is pivotally connected to the pivotal joint between the two groups of rear cross rods 2. The upper part of the middle backrest support rod 41 is provided with a tilted section 411 tilted backward to meet the comfort of the user when leaning back.

[0041] The upper and lower ends of the two sets of front cross bars 1 are pivotally connected by a front pivot 11. The outer upper ends of both sets of front cross bars 1 also have front pivots 11, which are respectively pivotally connected to the handrail 7 and the middle cross bars 3 on either side. The upper and lower ends of the two sets of rear cross bars 2 are pivotally connected by a rear pivot 21. A middle backrest support bar 41 extends upward from the middle rear pivot 21. The outer upper ends of both rear cross bars 2 also have rear pivots 21, which are respectively pivotally connected to the backrest support bars 4 and the middle cross bars 3 on either side. The ends of the middle cross bar 3 are respectively pivotally connected between the middle front pivot 11 and the rear pivot 21.

[0042] The lower end of each intermediate cross rod 3 is respectively provided with a chair leg connecting seat 31, and the lower ends of the front cross rod 1 and the rear cross rod 2 are also pivotally connected to the chair leg connecting seat 31 respectively.

[0043] In this embodiment, the inner end of the first backrest rod 61 is pivotally connected to the pivot seat 521 of the backrest connecting seat 5. The outer end of the first backrest rod 61 is pivotally connected to the inner end of the second backrest rod 62 via a backrest pivot member 611. The outer end of the second backrest rod 62 is pivotally connected to the rear end of the armrest rod 7. The backrest pivot member 611 can be located between the backrest connecting seat 5 and the backrest support seat 621. The backrest pivot member 611 is an elongated arc-shaped backrest. The two ends and the lower end of the backrest pivot member 611 form openings for the first backrest rod 61 and the second backrest rod 62 to pivotally connect and rotate relative to each other, thereby facilitating the folding of the double folding chair.

[0044] The upper ends of the backrest support rods 4 at both ends are pivotally connected to the backrest support seats 621, and the two second backrest rods 62 are respectively supported by the backrest support seats 621 and pivotally connected to the rear end of the armrest rod 7. Due to the pivotal connection, the backrest support seats 621 can rotate relative to the backrest support rods 4, which is convenient for reducing the volume of the double folding chair when folded.

[0045] Similarly, the rear end of the armrest rod 7 is pivotally connected to the armrest pivot seat 72, the front part 721 of the armrest pivot seat is pivotally connected to the rear end of the armrest rod 7, and the rear part 722 of the armrest pivot seat is sleeved on the front end of the second backrest rod 62. The armrest rod 7 can rotate relative to the front part 721 of the armrest pivot seat.

[0046] In this embodiment, the backrest rod 6 and the armrest rod 7 are curved rods that curve inward. When deployed, they form an outward arc. The front ends of the armrest rods 7 are pivotally connected to armrest seats 72 at the outer ends of the front cross assembly 10 and extend forward through a curved section 71. This enhances user comfort.

[0047] In this embodiment, the intersections of the front cross bar 1, the rear cross bar 2, and the middle cross bar 3 are directly pivotally connected by screws. In other embodiments, the pivotal connection can also be achieved by providing a cross pivot member.

[0048] When the above embodiment is folded, Figures 1 to 6 As shown, force can be applied to directly merge and fold the front cross assembly 10 and the rear cross assembly 20, achieving folding in the horizontal direction, that is, reducing the intersection angle between the front cross bars 1 and the rear cross bars 2. Then, the intermediate cross assembly 30 is merged and folded, achieving folding in the longitudinal direction, reducing the intersection angle between the intermediate cross bars 3. Next, the first backrest bar 61 is rotated upward about the pivot seat 521 of the backrest connecting seat 5, the second backrest bar 62 is rotated downward about the backrest pivot member 611, and the armrest bar 7 is rotated upward about the armrest pivot seat 72. Finally, the first backrest bar 61, the second backrest bar 62, and the armrest bar 7 are nearly longitudinally adjacent to the sides of the front cross assembly 10 and the rear cross assembly 20. Conversely, when deploying, the above steps can be reversed.

[0049] The above is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double folding chair, characterized by: It includes a front cross assembly, a rear cross assembly, an intermediate cross assembly, a backrest support rod, a backrest rod, and an armrest rod. An intermediate cross assembly is provided in the middle and between the two ends of the front cross assembly and the rear cross assembly; It also includes a backrest connecting seat, the upper end of which is provided with two symmetrical pivot seats, and the lower end of which is provided with a tubular sleeve; A backrest support rod extends upward from the bottom end in the middle and both ends of the rear cross assembly, and the upper end of the middle backrest support rod is sleeved in the socket of the backrest connecting seat; The inner ends of the two backrest rods are respectively pivotally connected to the pivot seats on the backrest connecting seat, and the outer ends of the two backrest rods are respectively pivotally connected to the rear end of the armrest rod after being supported by the backrest support rods located at both ends. The front end of the armrest rod is pivotally connected to the two outer ends of the front cross component; each backrest rod includes a first backrest rod and a second backrest rod, and the first backrest rod and the second backrest rod are pivotally connected by a backrest pivot member.

2. A double folding chair according to claim 1, characterized in that: The upper surface of the backrest connecting seat is a pivot plane, the pivot seat is arranged on the pivot plane, the outer end opening of the pivot seat faces obliquely rearward, and the socket is arranged in the middle of the lower surface of the pivot plane.

3. A double folding chair according to claim 2, characterized in that: The lower surface of the pivot plane can also be gradually retracted downward to provide a pair of side ears located on the side surfaces of the sleeve.

4. A double folding chair according to claim 2 or 3, characterized in that: The front cross assembly and the rear cross assembly are arranged in parallel; the front cross assembly includes two groups of front cross rods pivoted continuously, and the rear cross assembly includes two groups of rear cross rods pivoted continuously; the middle cross assembly includes three groups of middle cross rods, and the front and rear ends of the two groups of middle cross rods located on both sides are respectively pivoted to the outer ends of the two groups of front cross rods and the outer ends of the two groups of rear cross rods, and the front and rear ends of the other group of middle cross rods are respectively pivoted to the pivot joints in the middle of the two front cross rods and the pivot joints in the middle of the two rear cross rods; the lower end of the middle backrest support rod is pivoted to the pivot joint between the two groups of rear cross rods, and the upper part of the middle backrest support rod is provided with an inclined section tilted backward.

5. The double folding chair according to claim 4, characterized in that: The inner end of the first backrest rod is pivotally connected to the pivot seat of the backrest connecting seat, the outer end of the first backrest rod is pivotally connected to the inner end of the second backrest rod through the backrest pivot member, and the outer end of the second backrest rod is pivotally connected to the rear end of the handrail rod.

6. The double folding chair according to claim 5, characterized in that: The upper ends of the backrest support rods at both ends are pivotally connected to the backrest support seats, and the two second backrest rods are pivotally connected to the rear ends of the handrail rods after being supported by the backrest support seats.

7. The double folding chair according to claim 6, characterized in that: The backrest pivot member is located between the backrest connecting seat and the backrest supporting seat. The backrest pivot member is an elongated arc. Both ends and the lower end of the backrest pivot member form openings for the first backrest rod and the second backrest rod to be pivoted and rotated relative to each other.

8. The double folding chair according to claim 6, characterized in that: The rear end of the armrest rod is pivotally connected to an armrest pivot seat, the front part of the armrest pivot seat is pivotally connected to the rear end of the armrest rod, the rear part of the armrest pivot seat is sleeved on the front end of the second backrest rod, and the armrest rod is rotatable relative to the front part of the armrest pivot seat.

9. The double folding chair according to claim 8, characterized in that: The backrest rod and the armrest rod are arc-shaped rods bent inwardly; the front end of the armrest rod is pivotally connected to the armrest seats at the two outer ends of the front cross component and extends forward to have a curved section.

10. The double folding chair according to claim 4, characterized in that: Cross pivot members are provided at the intersections of the front cross bar, the rear cross bar and the middle cross bar.

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