Adjustable folding chair

Abstract

The utility model provides an adjustable folding chair and belongs to the technical field of folding chairs. Comprising a seat plate, four supporting legs are mounted at the bottom of the seat plate, a mounting frame is rotatably mounted at the top of the seat plate, an adjusting frame is rotatably mounted in the mounting frame, a fixing frame is fixed to one end of the seat plate, fixing rods are fixed in the fixing frame, a plurality of adjusting grooves allowing the fixing rods to be embedded are formed in the adjusting frame, a backup plate is fixed to one end of the adjusting frame, and an adjusting plate is slidably mounted on the backup plate; an adjusting mechanism is installed on the backup plate, a locking block is installed on the adjusting mechanism in a sliding mode, a sliding hole allowing one end of the locking block to penetrate through is formed in the backup plate, a groove is formed in one end of the adjusting plate, a plurality of limiting blocks are fixed in the groove side by side, and the end, penetrating through the sliding hole, of the locking block is embedded between every two adjacent limiting blocks. The chair can effectively meet the requirements of users on different sitting postures, and is wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of folding chair, and relates to an adjustable folding chair. BACKGROUND

[0002] The folding chair refers to the seat with light and stackable functions, which is convenient to move and saves space, and can be used to meet the sitting and resting needs of people during outdoor activities.

[0003] The utility model discloses a folding chair convenient to carry, including chair handrail, two groups are equipped with in chair handrail, and the bottom hinged support foot no.

[0004] But the prior art still has the following problems:

[0005] The backboard angle and height of the prior art folding chair are not adjustable, so that the different sitting postures of the user cannot be met. UTILITY MODEL CONTENTS

[0006] The utility model aims at the shortage of prior art, proposes a kind of adjustable folding chair, to solve the technical problem that the backboard angle and height of prior art folding chair mentioned in background art are not adjustable, different sitting postures of the user cannot be met.

[0007] To achieve the above object, the utility model has adopted the following technical scheme:

[0008] An adjustable folding chair, comprising:

[0009] The seat plate is provided with four supporting legs at the bottom;

[0010] The mounting frame is rotatably mounted on the top of the seat plate;

[0011] The adjusting frame is rotatably mounted in the mounting frame;

[0012] The fixed frame is fixed at one end of the seat plate, and the fixed frame is fixed with a fixed rod; the adjusting frame is provided with a plurality of adjusting grooves for embedding the fixed rod; the adjusting frame 4 cooperates with the fixed rod 6 to adjust the inclination angle of the mounting frame 3.

[0013] The backrest is fixed at one end of the adjusting frame;

[0014] The adjusting plate is slidingly installed on the backrest;

[0015] The adjusting mechanism is arranged on the backrest, the adjusting mechanism is slidingly installed with a locking block, the backrest is provided with a sliding hole through which one end of the locking block passes, one end of the adjusting plate is provided with a groove, and a plurality of limiting blocks are fixed side by side in the groove, and one end of the locking block is embedded between two adjacent limiting blocks.

[0016] Working principle:

[0017] According to the needs of the user, the installation frame is rotated to the required angle, then the adjusting frame is rotated, so that the fixed rod is embedded in the adjusting groove arranged in the adjusting frame, thereby realizing angle adjustment and fixation of the installation frame, then the adjusting plate is pulled to move away from the seat plate, one end of the locking block has a guiding effect with the inclined surface of the limiting block arranged in the groove, during the pulling process of the adjusting plate, the locking block moves away from the groove along the sliding hole, when one end of the locking block is completely separated from the inclined surface of the limiting block, the adjusting mechanism resets the locking block, and one end of the locking block is embedded between the adjacent two limiting blocks, at this time, if the adjusting plate is subjected to downward pulling force, the plane of one end of the locking block abuts against and pushes against the plane of the limiting block, so that the adjusting block is limited to move downward.

[0018] The backrest is fixed at one end of the adjusting frame;

[0019] The adjusting mechanism is arranged on the backrest, the adjusting mechanism is slidingly installed with a locking block, the backrest is provided with a sliding hole through which one end of the locking block passes, one end of the adjusting plate is provided with a groove, and a plurality of limiting blocks are fixed side by side in the groove, and one end of the locking block is embedded between two adjacent limiting blocks. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view when the embodiment of the utility model is unfolded;

[0021] Figure 2 is a sectional view when the embodiment of the utility model is folded;

[0022] Figure 3 is a structural schematic view of the adjusting plate of the embodiment of the utility model;

[0023] Figure 4 is an assembly sectional view of the installation frame and the adjusting frame of the embodiment of the utility model;

[0024] Figure 5Is the structure schematic view of the mounting frame of the embodiment of the utility model;

[0025] Figure 6 Is the assembly section view of the locking block and two blocking blocks of the embodiment of the utility model;

[0026] Figure 7 Is the section view of the backrest of the embodiment of the utility model;

[0027] Figure 8 Is the bottom view of the seat plate of the embodiment of the utility model;

[0028] Figure 9 Is the Figure 1 Enlarged view of A in the middle.

[0029] Mark 1, the seat plate; 2, support leg; 3, mounting frame; 4, adjusting frame; 5, fixed frame; 6, fixed rod; 7, adjusting groove; 8, backrest; 9, adjusting plate; 10, locking block; 11, sliding hole; 12, recess; 13, limit block; 14, mounting block; 15, pivot one; 16, pivot two; 17, mounting frame; 18, return spring; 19, blocking block; 20, protruding block; 21, guide rod; 22, guide hole; 23, pull ring; 24, T-shaped block; 25, T-shaped groove; 26, inclined portion; 27, storage groove; 28, connecting block; 29, round rod. Specific embodiments

[0030] The following is the specific embodiment of the utility model and is further described the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0031] As Figures 1-4, 9 shown, an adjustable folding chair, including a seat plate 1, mounting frame 3, adjusting frame 4, backrest 8, adjusting plate 9 and adjusting mechanism, the seat plate 1 bottom is provided with four support legs 2, the mounting frame 3 is rotatably mounted on the top of the seat plate 1, the adjusting frame 4 is rotatably mounted in the mounting frame 3, the seat plate 1 one end is fixed with a fixed frame 5, the fixed frame 5 is fixed with a fixed rod 6, the adjusting frame 4 is provided with a plurality of adjusting slots 7 for the fixed rod 6, the adjusting frame 4 cooperates with the fixed rod 6 to adjust the inclination angle of the mounting frame 3, the top of the seat plate 1 is fixed with two symmetrically arranged mounting blocks 14, the mounting frame 3 is fixed with two symmetrically arranged pivot shafts 15, the two mounting blocks 14 are respectively provided with a circular hole 1 for embedding the corresponding two pivot shafts 15, the adjusting frame 4 is fixed with two symmetrically arranged pivot shafts 16, the two sidewalls of the mounting frame 3 are respectively provided with a circular hole 2 for embedding the two corresponding pivot shafts 16, according to the user's needs, the mounting frame 3 is rotated to the desired angle, then the adjusting frame 4 is rotated, so that the fixed rod 6 is embedded in the adjusting slot 7 of the adjusting frame 4, thereby realizing the angle adjustment and fixation of the mounting frame 3, the backrest 8 is fixed at one end of the adjusting frame 4, the adjusting plate 9 is slidably mounted on the backrest 8, the adjusting mechanism is arranged on the backrest 8, the adjusting mechanism is slidably mounted with a locking block 10, the backrest 8 is provided with a sliding hole 11 for the one end of the locking block 10 to pass through, one end of the adjusting plate 9 is provided with a recess 12, a plurality of limiting blocks 13 are fixed side by side in the recess 12, the locking block 10 is embedded between two adjacent limiting blocks 13 at one end of the sliding hole 11.

[0032] As Figure 1 、 5 , 6 shown, the adjusting mechanism includes a mounting frame 17 and two reset springs 18, the locking block 10 is fixed with two symmetrically arranged stop blocks 19, the mounting frame 17 is fixed with two protrusions 20 corresponding to the two corresponding stop blocks 19, the protrusions 20 are fixed with guide rods 21 between the backrest 8, the stop blocks 19 are provided with guide holes 22 for the guide rods 21 to pass through, the two reset springs 18 are respectively sleeved on the corresponding two guide rods 21, the two ends of the reset spring 18 are respectively abutted with one end of the protrusion 20 and one end of the stop block 19, one end of the locking block 10 extending out of the mounting frame 17 is fixed with a pull ring 23, pulling the pull ring 23 drives the locking block 10 to move away from the backrest 8, the locking block 10 drives the stop block 19 to move synchronously along the guide rod 21, the stop block 19 presses the reset spring 18, the reset spring 18 is compressed and has a certain elastic potential energy.

[0033] As Figure 1 、 6, 7, 8, one end of the backrest 8 is fixed with two symmetrically arranged T-shaped blocks 24, one end of the adjusting plate 9 is provided with two T-shaped grooves 25 for embedding the two T-shaped blocks 24 respectively, the recess 12 is located between the two T-shaped grooves 25, the cross section of the limiting block 13 is a right triangle, the locking block 10 extends to the recess 12 and has an inclined portion 26 at one end, the bottom of the seat plate 1 has a receiving groove 27, the top wall of the receiving groove 27 is fixed with two symmetrically arranged connecting blocks 28, the connecting block 28 is provided with an adjusting hole, and a round rod 29 is embedded in the adjusting hole, the outer wall of the round rod 29 is fixed with the corresponding two supporting legs 2, one of the two round rods 29 is located between the other two supporting legs 2 connected to the corresponding round rod 29, and the supporting legs 2 connected to the two round rods 29 are pulled respectively, the two supporting legs 2 drive the corresponding round rod 29 to rotate, so that the supporting legs 2 are located outside the receiving groove 27, and the end of the supporting legs 2 abuts against the inner side wall of the receiving groove 27.

[0034] The specific operation mode of the utility model is as follows:

[0035] When unfolded for use, the supporting legs 2 connected to the two round rods 29 are pulled respectively, the two supporting legs 2 drive the corresponding round rod 29 to rotate, so that the supporting legs 2 are located outside the receiving groove 27, and the end of the supporting legs 2 abuts against the inner side wall of the receiving groove 27, according to the requirement of the user, the mounting frame 3 is rotated to the required angle, then the adjusting frame 4 is rotated, so that the fixing rod 6 is embedded in the adjusting groove 7 formed in the adjusting frame 4, thereby realizing the angle adjustment and fixation of the mounting frame 3, then the adjusting plate 9 is pulled to move away from the seat plate 1, the inclined portion 26 of the locking block 10 and the inclined surface of the limiting block 13 arranged in the recess 12 have a guiding effect, in the pulling process of the adjusting plate 9, the locking block 10 moves away from the recess 12 along the sliding hole 11, the locking block 10 drives the stop block 19 to move synchronously along the guide rod 21, the stop block 19 presses the return spring 18, the return spring 18 is compressed and has a certain elastic potential energy, when one end of the locking block 10 is completely separated from the inclined surface of the limiting block 13, under the action of the return spring 18, the return spring 18 makes the locking block 10 reset through the stop block 19, and one end of the locking block 10 is embedded between the adjacent two limiting blocks 13, at this time, if the adjusting plate 9 is subjected to a downward pulling force, the plane at one end of the locking block 10 abuts against and pushes against the plane of the limiting block 13, thereby limiting the downward movement of the adjusting plate 9;

[0036] When the storage: pull the pull ring 23 with the lock block 10 to move away from the direction of the backboard 8, the lock block 10 with the block 19 along the guide rod 21 synchronous movement, block 19 extrusion reset spring 18, reset spring 18 is compressed and has a certain elastic potential, pull the adjusting plate 9, so that the adjusting plate 9 reset, release the pull ring 23, under the action of the reset spring 18, reset spring 18 through the block 19 so that the lock block 10 reset, and make the lock block 10 one end embedded between the adjacent two limit block 13, again rotate the installation frame 3 to a certain small angle, again rotate the adjusting frame 4, so that the fixed rod 6 from the adjusting groove 7, again rotate the installation frame 3, so that the adjusting plate 9 and the seat plate 1 top abutting, rotate the adjusting frame 4, so that the adjusting frame 4 is located in the installation frame 3 and with the backboard 8 one end abutting, respectively pull the connection with the two round rod 29 on the support leg 2, two support leg 2 respectively with the corresponding round rod 29 rotation, so that the four support leg 2 is located in the storage slot 27.

[0037] Finally, it is pointed out that the above examples are used to illustrate the technical solutions of the present application rather than limit, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by the equivalent, without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An adjustable folding chair, characterized in that, Include: The seat plate (1) is provided with four supporting legs (2) at the bottom; The mounting frame (3) is rotatably mounted on the top of the seat plate (1); The adjusting frame (4) is rotatably mounted in the mounting frame (3); The fixed frame (5) is fixed at one end of the seat plate (1), and the fixed rod (6) is fixed in the fixed frame (5); The adjusting frame (4) is provided with a plurality of adjusting grooves (7) for embedding the fixed rod (6), and the adjusting frame (4) cooperates with the fixed rod (6) to adjust the inclination angle of the mounting frame (3); The backrest plate (8) is fixed at one end of the adjusting frame (4); The adjusting plate (9) is slidably mounted on the backrest plate (8); 2. An adjustable folding chair as defined in claim 1, wherein, The adjusting mechanism is provided on the backrest plate (8), and the locking block (10) is slidably mounted on the backrest plate (8); 3. An adjustable folding chair as defined in claim 1, wherein, The backrest plate (8) is provided with a sliding hole (11) for the one end of the locking block (10) to pass through, and the adjusting plate (9) is provided with a recess (12) at one end; 4. An adjustable folding chair as defined in claim 3, wherein, The recess (12) is fixed with a plurality of limiting blocks (13) side by side; 5. An adjustable folding chair as defined in claim 1, wherein, The top of the seat plate (1) is fixed with two symmetrically arranged mounting blocks (14), and the mounting frame (3) is fixed with two symmetrically arranged rotating shafts (15); 6. An adjustable folding chair as defined in claim 1, wherein, The two mounting blocks (14) are respectively provided with a circular hole (15) for embedding the corresponding two rotating shafts (15), and the adjusting frame (4) is fixed with two symmetrically arranged rotating shafts (16); The two side walls of the mounting frame (3) are respectively provided with a circular hole (16) for embedding the two corresponding driving rotating shafts (16). The adjusting mechanism includes a mounting frame (17) and two reset springs (18), and the locking block (10) is fixed with two symmetrically arranged stop blocks (19); The mounting frame (17) is fixed with two protrusions (20) corresponding to the two corresponding stop blocks (19), and the protrusions (20) and the backrest plate (8) are fixed with guide rods (21); The stop block (19) is provided with a guide hole (22) for the guide rod (21) to pass through, and the two reset springs (18) are respectively sleeved on the corresponding two guide rods (21); The ends of the reset spring (18) abut against the one end of the protrusion (20) and the one end of the stop block (19). The one end of the locking block (10) extending out of the mounting frame (17) is fixed with a pull ring (23). The one end of the backrest plate (8) is fixed with two symmetrically arranged T-shaped blocks (24), and the one end of the adjusting plate (9) is provided with two T-shaped grooves (25) for embedding the two corresponding T-shaped blocks (24); The recess (12) is located between the two T-shaped grooves (25). The cross section of the limiting block (13) is a right triangle, and the one end of the locking block (10) extending into the recess (12) has an inclined part (26).

7. An adjustable folding chair as defined in claim 1 wherein, The bottom of the seat plate (1) is provided with a receiving groove (27), two symmetrically arranged connecting blocks (28) are fixed to the top wall of the receiving groove (27), the connecting blocks (28) are provided with adjusting holes, round rods (29) are embedded in the adjusting holes, the outer wall of the round rods (29) is fixed with two corresponding supporting legs (2), and the two supporting legs (2) connected with one of the round rods (29) are located between the two supporting legs (2) connected with the other round rod (29).

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