Plastic chair

Abstract

The utility model relates to the technical field of plastic chairs, and discloses a plastic chair which comprises a chair seat plate and supporting leg columns distributed at four corners of the bottom of the chair seat plate, and further comprises a functional bottom bin fixedly arranged at the lower end of the chair seat plate, the moving plate is arranged in the functional bottom bin, a leg supporting plate which inclines downwards is fixedly arranged at the front end of the moving plate, rotating open grooves are formed in the surfaces of the two sets of supporting foot columns close to the front end of the chair seat plate, and supporting connecting rods are rotationally connected into the rotating open grooves through rotating shafts; the supporting cross rod is fixedly arranged at the end, away from the rotary open groove, of the supporting connecting rod. According to the application, a group of movable plates which can be pulled out are arranged below the chair seat plate, the leg supporting plate which is obliquely arranged is fixedly arranged at the front part of the movable plates, and the legs can be supported by pulling the leg supporting plate to the front part of the chair seat plate, so that the sitting posture of the whole chair is more comfortable.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic chairs, in particular to a plastic chair. Background Art

[0002] Plastic refers to a plastic (flexible) material with high molecular weight synthetic resin as the main component, with appropriate additives such as plasticizers, stabilizers, antioxidants, flame retardants, colorants, etc., processed and formed, or a rigid material formed by curing and cross-linking. Plastic chairs are inexpensive and commonly used in public places.

[0003] In a common plastic chair, the legs are hanging down in a normal sitting position, but raising the legs can improve the sitting comfort, but plastic chairs generally do not provide support for the calves. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plastic chair to solve the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: comprising: a chair seat plate and supporting legs distributed at the four corners of the bottom of the chair seat plate,

[0006] Also includes:

[0007] The functional bottom compartment is fixed at the lower end of the seat plate;

[0008] The movable plate is arranged in the functional bottom bin, and a leg support plate tilted downward is fixedly arranged at the front end of the movable plate, and a rotating groove is opened on the surface of two sets of supporting foot posts near the front end of the seat plate, and a supporting connecting rod is rotatably connected in the groove of the rotating groove through a rotating shaft;

[0009] The support cross bar is fixedly arranged at one end of the support connecting rod away from the rotating slot. A cross bar positioning hole is opened on the surface of the support cross bar. A positioning plug rod connected to the leg support plate is fitted in the groove of the cross bar positioning hole.

[0010] Furthermore, a back plate is fixedly provided on one side of the top of the seat plate.

[0011] Furthermore, a rectangular groove is provided inside the functional bottom bin, and two sets of inner side walls of the rectangular groove are provided with limited sliding grooves.

[0012] Furthermore, both ends of the movable plate are fixedly provided with limit sliding blocks sliding in the limit sliding grooves, and the movable plate moves horizontally in the rectangular groove of the functional bottom bin.

[0013] Furthermore, a functional block is fixedly provided on the surface of the leg support plate, and one end of the positioning rod is fixed to the side wall of the functional block.

[0014] Furthermore, the supporting connecting rod and the supporting cross bar are in an L-shaped structure.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The present application provides a group of pull-out movable plates under the seat plate, and an inclined leg support plate is fixedly provided at the front of the movable plate. The calf can be supported by pulling the leg support plate in front of the seat plate, making the sitting posture of the entire seat more comfortable, and the unfolded leg support plate can be supported by a rotatable and unfoldable support connecting rod and a support cross bar, thereby improving the stability of the leg support plate in the process of supporting the calf. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is an enlarged view of the support crossbar of the utility model;

[0019] Figure 3 This is a bottom view of the functional bottom bin of the utility model.

[0020] In the figure: 1. Seat plate; 2. Back plate; 3. Support foot column; 4. Limit slide groove; 5. Limit slider; 6. Moving plate; 7. Leg support plate; 8. Rotating slot; 9. Support connecting rod; 10. Support cross bar; 11. Cross bar positioning hole; 12. Functional block; 13. Positioning plug rod; 14. Functional bottom bin. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 , including: a seat plate 1 and supporting legs 3 distributed at the four corners of the bottom of the seat plate 1, the seat plate 1 is supported by the supporting legs 3, a seat back plate 2 protruding upward is fixedly arranged at one side of the top of the seat plate 1, a functional bottom bin 14 is fixedly arranged at the lower end of the seat plate 1, a rectangular cavity is arranged inside the functional bottom bin 14, a movable plate 6 is placed in the rectangular cavity, and a limiting slide 4 is arranged in the rectangular cavity, which is recessed in the functional bottom bin 14, and limiting sliders 5 extending into the limiting slide 4 are fixedly arranged on both sides of the movable plate 6, so that the limiting sliders 5 can move horizontally along the limiting slide 4, thereby driving the movable plate 6 to move horizontally under the seat plate 1. A leg support plate 7 with a larger width is fixedly arranged on the end face of the movable plate 6 away from the limiting slider 5, and when the movable plate 6 is pulled out, the leg support plate 7 can be used to support the calf position;

[0023] The surfaces of the two groups of support legs 3 near the front end of the seat plate 1 are provided with rotating grooves 8, and the grooves of the rotating grooves 8 are rotatably connected with support links 9 through rotating shafts. A spring is arranged between the support links 9 and the support legs 3, which is not shown in the figure, so that the support links 9 and the support legs 3 are kept in a fitted state. After the leg support plate 7 is fully pulled out, the leg support plate 7 needs to be stably supported, and the two groups of support links 9 symmetrically distributed on both sides of the seat plate 1 are unfolded outwards to rotate the support links 9 to the maximum rotation angle. A supporting cross bar 10 is fixed on the top of the supporting connecting rod 9. The supporting connecting rod 9 and the supporting cross bar 10 are in an L-shaped structure, and a cross bar positioning hole 11 is opened on the end surface of the supporting cross bar 10 close to the supporting foot column 3, and a functional block 12 is fixed on the bottom wall of the leg support plate 7, and a positioning plug 13 is fixed on the side wall of the functional block 12. When the supporting cross bar 10 reaches the maximum rotation position, the positioning plug 13 is flush with the cross bar positioning hole 11, so that the positioning plug 13 is inserted into the groove of the cross bar positioning hole 11 to support the leg support plate 7.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic chair, comprising: A seat plate (1) and supporting legs (3) distributed at the four corners of the bottom of the seat plate (1), It is characterized by further comprising: A limiting slide groove (4) is fixedly arranged at the lower end of the seat plate (1); A movable plate (6) is arranged in the functional bottom bin (14), a leg support plate (7) tilted downward is fixedly provided at the front end of the movable plate (6), a rotating groove (8) is provided on the surface of two groups of supporting legs (3) near the front end of the seat plate (1), and a supporting connecting rod (9) is rotatably connected in the groove of the rotating groove (8) via a rotating shaft; The support cross bar (10) is fixedly arranged at one end of the support connecting rod (9) away from the rotating slot (8). A cross bar positioning hole (11) is provided on the surface of the support cross bar (10). A positioning plug rod (13) connected to the leg support plate (7) is fitted in the groove of the cross bar positioning hole (11).

2. A plastic chair according to claim 1, characterized in that: A chair back plate (2) is fixedly arranged on one side of the top of the chair seat plate (1).

3. A plastic chair according to claim 1, characterized in that: A rectangular groove is provided inside the functional bottom bin (14), and two sets of inner side walls of the rectangular groove are provided with limited sliding grooves (4).

4. A plastic chair according to claim 1, characterized in that: The two ends of the movable plate (6) are fixedly provided with limit sliding blocks (5) which slide in the limit sliding groove (4), and the movable plate (6) moves horizontally in the rectangular groove of the functional bottom bin (14).

5. A plastic chair according to claim 1, characterized in that: A functional block (12) is fixedly arranged on the surface of the leg support plate (7), and one end of a positioning rod (13) is fixed to the side wall of the functional block (12).

6. A plastic chair according to claim 1, characterized in that: The supporting connecting rod (9) and the supporting cross rod (10) are in an L-shaped structure.

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