CN215126314U - Folding chair frame - Google Patents
Folding chair frame Download PDFInfo
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- CN215126314U CN215126314U CN202121304091.XU CN202121304091U CN215126314U CN 215126314 U CN215126314 U CN 215126314U CN 202121304091 U CN202121304091 U CN 202121304091U CN 215126314 U CN215126314 U CN 215126314U
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- seat
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Abstract
The utility model discloses a folding chair frame, which comprises a group of front foot backrest tubes and a handrail mechanism, wherein the front foot backrest tubes are arranged in parallel, connecting pieces are hinged on the front foot backrest tubes, the front ends of the connecting pieces are hinged with the rear ends of seat tubes, and the rear ends of the connecting pieces are hinged with the upper ends of rear foot tubes; the armrest mechanisms are arranged on two sides of the front foot backrest pipe and comprise armrests and armrest supporting seats, the armrests are hinged to the front foot backrest pipe, the armrest supporting seats are arranged in the middle of the seat pipe, and armrest supporting pipes are hinged between the armrests and the armrest supporting seats; the armrest supporting seat is provided with a limiting structure for limiting the rotation of the armrest supporting tube; the utility model discloses set up the handrail supporting seat on the seat pipe, the handrail stay tube is articulated mutually with handrail supporting seat to shortened the length of handrail stay tube, reduce cost, when folding chair frame is completely expanded, because handrail supporting seat gear face makes handrail tube rotate to a certain position and just no longer takes place to rotate, further promote handrail stability.
Description
Technical Field
The utility model belongs to the technical field of folding chair makes the technique and specifically relates to a folding chair frame.
Background
The folding chair has the advantages of light weight, small occupied area, low price and the like, and is widely applied to various public and private places. A common folding chair comprises a chair frame, a chair seat and a chair back, which can be folded integrally, for example, patent CN201520293822.3 discloses a technical scheme of the folding chair frame, which comprises a foot support, a seat rod and a handrail rod connected thereto, wherein the foot support comprises side supports positioned on two side faces and a cross support rod group positioned on a front vertical face and a rear vertical face, two sides of the front vertical face are respectively provided with a vertical rod, the lower end of the vertical rod is movably connected on the front support rod, the seat rod is pivoted on the vertical rod, the upper end of the vertical rod is pivoted with the handrail rod, the rear end of the handrail rod passes through a sliding sleeve arranged on the back rod, and the folding is realized by sliding. This technical scheme provides the support for the handrail through setting up the pole setting, has better stability, but the pole setting is longer, and corresponding material consumes more, has improved the cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a folding chair frame, its length that shortens the handrail stay tube is favorable to practicing thrift the cost to set up limit structure, carry out the gear to the handrail and stabilize.
In order to achieve the above purpose, the technical scheme of the utility model is that: a folding chair frame comprises a group of front foot backrest pipes and a handrail mechanism, wherein the front foot backrest pipes are arranged in parallel, connecting pieces are hinged on the front foot backrest pipes, the front ends of the connecting pieces are hinged with the rear ends of seat pipes, and the rear ends of the connecting pieces are hinged with the upper ends of rear foot pipes; the armrest mechanisms are arranged on two sides of the front foot backrest pipe and comprise armrests and armrest supporting seats, the armrests are hinged to the front foot backrest pipe, the armrest supporting seats are arranged in the middle of the seat pipe, and armrest supporting pipes are hinged between the armrests and the armrest supporting seats; and the armrest supporting seat is provided with a limiting structure for limiting the rotation of the armrest supporting tube.
The improved structure is further improved, and further comprises a front supporting mechanism and a rear supporting mechanism, wherein the front supporting mechanism consists of a front cross, a front cross connector, a first front supporting leg and a second front supporting leg, the upper end of the front cross is hinged at the front end of the seat tube, the lower end of the front cross connector is hinged with the front cross connector, the middle of the front cross connector is hinged with the middle of the first front supporting leg, two ends of the front cross connector are respectively hinged with the upper end of the second front supporting leg and the lower end of the front cross, the upper end of the first front supporting leg is hinged with the front end of the seat tube at the other side, the lower end of the first front supporting leg is hinged with the lower end of the front backrest tube, the upper end of the second front supporting leg is hinged with the front cross connector, and the lower end of the front backrest tube at the other side is hinged with the front backrest tube at the other side;
rear support mechanism comprises back alternately, back cross connection spare, back supporting leg, second after by, back alternately upper end articulates on preceding foot back pipe, and lower extreme and back cross connection spare are articulated, it is articulated mutually with first back supporting leg middle part in the middle of the back cross connection spare, and both ends are articulated mutually with back alternately lower extreme in back supporting leg upper end and the back respectively behind the second, first back supporting leg upper end and opposite side back pipe are articulated mutually, and lower extreme and back foot pipe lower extreme are articulated mutually, supporting leg upper end and back cross connection spare are articulated mutually behind the second, and lower extreme and opposite side back foot pipe are articulated mutually. The front supporting mechanism and the rear supporting mechanism provide support for the folding clothes hanger, so that the folding clothes hanger is more stable.
The improved handrail support seat is further provided with an open slot, the handrail support tube is hinged in the open slot, and the limiting structure is an inclined gear surface arranged on the upper side of the open slot.
The improved handrail support seat is further provided with a through hole, the handrail support seat is sleeved on the seat tube through the through hole, and the handrail support tube is hinged with a through hole of the handrail support seat and is hinged with the seat tube through the through hole. The opening is simple in structure and convenient to install.
The improved handrail is characterized in that the lower end of the middle part of the handrail is fixedly connected with a handrail connecting piece, and the handrail connecting piece is hinged with the upper end of the handrail supporting tube.
In a further improvement, the front foot backrest tube, the handrail supporting tube and the seat tube form a stable quadrilateral structure.
The utility model discloses set up the handrail supporting seat on the seat pipe, the handrail stay tube is articulated mutually with handrail support seat to the length of handrail stay tube has been shortened, reduce cost, when folding chair frame is completely expanded, because handrail support seat gear face makes handrail tube rotate to a certain position and just no longer takes place to rotate, further promotes handrail stability, and foreleg backrest pipe, handrail stay tube and seat pipe form stable quadrangle structure, guarantee handrail stability when realizing folding.
Drawings
Fig. 1 is a schematic view of an expanded state of an embodiment of the present invention;
fig. 2 is a side view of an expanded state of an embodiment of the present invention;
fig. 3 is a schematic view of an embodiment of the present invention in a folded state;
fig. 4 is another schematic view of an embodiment of the present invention in a folded state;
fig. 5 is a schematic view of the armrest support seat of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, a folding chair frame comprises a set of front foot backrest tubes 1 and an armrest mechanism 2, wherein the front foot backrest tubes 1 are arranged in parallel and stand obliquely backwards, the tail ends of the front foot backrest tubes extend upwards to form a backrest, a connector 11 is hinged on the front foot backrest tubes 1, the front ends of the connectors 11 are hinged with the rear ends of seat tubes 3, the rear ends of the connectors are hinged with the upper ends of rear foot tubes 4, the seat tubes 3 are positioned in front of the front foot backrest tubes 1, and the rear foot tubes 4 are positioned behind the front foot backrest tubes 1;
the armrest mechanism 2 is arranged at two sides of the front foot backrest pipe 1 and comprises an armrest 21 and an armrest supporting seat 22, the armrest 21 is hinged on the front foot backrest pipe 1 and is positioned above the connecting piece, and the armrest supporting seat 22 is arranged in the middle of the seat pipe 3; the armrest supporting seat 22 is provided with an open slot 221, the lower end of the armrest supporting tube 23 is hinged in the open slot 221, and the upper side of the open slot 221 is provided with an inclined gear surface 222 as a limiting structure to limit the rotation of the armrest supporting tube 23; the lower end of the middle part of the handrail 21 is fixedly connected with a handrail connecting piece 24, and the handrail connecting piece 24 is hinged with the upper end of the handrail supporting tube 23; the armrest supporting seat 22 is also provided with a through hole 223, the armrest supporting seat 22 is sleeved on the seat tube 3 through the through hole 223, and the armrest supporting tube 23 is hinged with a through hole of the armrest supporting seat 22 and is hinged with the seat tube 3 through the through hole;
also comprises a front supporting mechanism 5 and a rear supporting mechanism 6, wherein the front supporting mechanism 5 consists of a front cross 51, a front cross connecting piece 52, a first front supporting leg 53 and a second front supporting leg 54, the upper end of the front cross 51 is hinged on the hinge piece at the front end of the seat tube 3, the lower end is hinged with the front cross connecting piece 52, the middle of the front cross connecting piece 52 is hinged with the middle of the first front supporting leg 53, the two ends are respectively hinged with the upper end of the second front supporting leg 54 and the lower end of the front cross 51, the upper end of the first front supporting leg 53 is hinged with the hinge piece at the front end of the seat tube 3 at the other side, the lower end is hinged with the hinge piece at the lower end of the front foot backrest tube 1, the upper end of the second front supporting leg 54 is hinged with the front cross connector 52, the lower end is hinged with the hinge piece on the front foot backrest tube 1 on the other side, and the front cross connector 52 enables the first front supporting leg 53, the second front supporting leg 54 and the front cross 51 to be positioned on the same vertical plane;
the rear supporting mechanism 6 is composed of a rear cross 61, a rear cross connector 62, a first rear supporting leg 63 and a second rear supporting leg 64, the upper end of the rear cross 61 is hinged on a hinge piece of the front leg backrest tube 1, the lower end of the rear cross connector 62 is hinged with the rear cross connector 62, the middle of the rear cross connector 62 is hinged with the middle of the first rear supporting leg 63, two ends of the rear cross connector 62 are respectively hinged with the upper end of the second rear supporting leg 64 and the lower end of the rear cross 61, the upper end of the first rear supporting leg 63 is hinged with a hinge piece on the front leg backrest tube 1 on the other side, the lower end of the first rear supporting leg is hinged with a hinge piece on the lower end of the rear leg tube 4, the upper end of the second rear supporting leg 64 is hinged with the rear cross connector 62, the lower end of the second rear supporting leg 63 is hinged with a hinge piece on the rear leg tube 4 on the other side, and the rear cross connector 62 enables the first rear supporting leg 63, the second rear supporting leg 64 and the rear cross 61 to be positioned on the same vertical plane;
inner plugs are arranged inside the lower end of the front foot backrest tube 1, the lower end of the rear foot tube 4, the lower ends of the first front supporting foot 53, the second front supporting foot 54, the lower end of the first rear supporting foot 63 and the lower end of the second rear supporting foot 64.
The front foot backrest tube 1, the handrail 21, the handrail support tube 23 and the seat tube 3 form a stable quadrilateral structure, so that the stability of the handrail 21 is ensured while the folding is realized.
The above is only a preferred embodiment of the present invention, and all changes that can be made by those skilled in the art according to the appended claims will fall within the scope of the present invention.
Claims (6)
1. A folding chair frame is characterized in that: the front foot backrest pipe is arranged in parallel, a connecting piece is hinged to the front foot backrest pipe, the front end of the connecting piece is hinged to the rear end of the seat pipe, and the rear end of the connecting piece is hinged to the upper end of the rear foot pipe; the armrest mechanisms are arranged on two sides of the front foot backrest pipe and comprise armrests and armrest supporting seats, the armrests are hinged to the front foot backrest pipe, the armrest supporting seats are arranged in the middle of the seat pipe, and armrest supporting pipes are hinged between the armrests and the armrest supporting seats; and the armrest supporting seat is provided with a limiting structure for limiting the rotation of the armrest supporting tube.
2. A folding chair frame, according to claim 1, characterized in that: the front support mechanism consists of a front cross, a front cross connector, a first front support leg and a second front support leg, the upper end of the front cross is hinged at the front end of the seat tube, the lower end of the front cross connector is hinged with the front cross connector, the middle of the front cross connector is hinged with the middle of the first front support leg, the two ends of the front cross connector are respectively hinged with the upper end of the second front support leg and the lower end of the front cross, the upper end of the first front support leg is hinged with the front end of the seat tube at the other side, the lower end of the first front support leg is hinged with the lower end of the front foot backrest tube, the upper end of the second front support leg is hinged with the front cross connector, and the lower end of the second front support leg backrest tube at the other side is hinged with the front foot backrest tube;
rear support mechanism comprises back alternately, back cross connection spare, back supporting leg, second after by, back alternately upper end articulates on preceding foot back pipe, and lower extreme and back cross connection spare are articulated, it is articulated mutually with first back supporting leg middle part in the middle of the back cross connection spare, and both ends are articulated mutually with back alternately lower extreme in back supporting leg upper end and the back respectively behind the second, first back supporting leg upper end and opposite side back pipe are articulated mutually, and lower extreme and back foot pipe lower extreme are articulated mutually, supporting leg upper end and back cross connection spare are articulated mutually behind the second, and lower extreme and opposite side back foot pipe are articulated mutually.
3. A folding chair frame, according to claim 1, characterized in that: the handrail supporting seat is provided with an open slot, the handrail supporting tube is hinged in the open slot, and the limiting structure is an inclined gear surface arranged on the upper side of the open slot.
4. A folding chair frame, according to claim 1, characterized in that: the handrail supporting seat is also provided with a through hole, the handrail supporting seat is sleeved on the seat tube through the through hole, and the handrail supporting tube is hinged with a through hole of the handrail supporting seat and is hinged with the seat tube through the through hole.
5. A folding chair frame, according to claim 1, characterized in that: the lower end of the middle part of the handrail is fixedly connected with a handrail connecting piece, and the handrail connecting piece is hinged with the upper end of the handrail supporting tube.
6. A folding chair frame, according to claim 1, characterized in that: the front foot backrest tube, the handrail supporting tube and the seat tube form a stable quadrilateral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121304091.XU CN215126314U (en) | 2021-06-10 | 2021-06-10 | Folding chair frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121304091.XU CN215126314U (en) | 2021-06-10 | 2021-06-10 | Folding chair frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215126314U true CN215126314U (en) | 2021-12-14 |
Family
ID=79389181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121304091.XU Active CN215126314U (en) | 2021-06-10 | 2021-06-10 | Folding chair frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215126314U (en) |
-
2021
- 2021-06-10 CN CN202121304091.XU patent/CN215126314U/en active Active
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