Chair capable of adjusting sitting posture

Abstract

The utility model discloses a chair capable of adjusting the sitting posture, which comprises a bearing seat cushion and an auxiliary support cushion, the bottom end of the bearing seat cushion is fixedly provided with a bearing connecting plate, the bottom end of the bearing connecting plate is fixedly provided with an air cylinder connecting block, the bottom end of the air cylinder connecting block is fixedly provided with a lifting air cylinder, and the lifting air cylinder is fixedly provided with an air outlet. The bottom of the outer wall of the lifting air cylinder is symmetrically and fixedly connected with two supporting bent rods, the top ends of the supporting bent rods are fixedly connected with connecting mounting plates, the two connecting mounting plates are fixedly mounted on the two sides of the bottom end of an auxiliary supporting pad correspondingly, and an auxiliary supporting plate is fixedly mounted at the bottom end of the auxiliary supporting pad. A telescopic air cylinder is fixedly installed at the bottom end of the auxiliary supporting plate. According to the utility model, the auxiliary supporting cushion is matched with the height-adjustable bearing seat cushion, so that a user can use the chair in various sitting postures, the chair can be freely adjusted according to own preferences and requirements, and the overall stability of the chair is ensured.

Description

Technical Field

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

[0002] In the prior art, furniture refers to a large category of equipment and facilities that are essential for humans to maintain normal life, engage in production practice and carry out social activities. Chairs are one of the commonly used ones in daily work and life.

[0003] After searching, the Chinese patent application No. 201922426634.4 discloses a chair with adjustable sitting angle, including a seat plate, a fixing frame welded at the bottom of the seat plate, a bracket fixedly connected to the bottom of the fixing frame, a base rotatably connected to the opposite side of the two fixing frames through a bearing, a support frame fixedly connected to the left side of the fixing frame, the top of the support frame is fixedly connected to the seat plate, a connecting rod fixedly connected to one side of the support frame, a fastening bolt is provided through the front surface of the connecting rod, an adjustment structure is fixedly connected to the opposite side of the two connecting rods, a head support is fixedly connected to the right side of the adjustment structure, an auxiliary support frame is fixedly connected to the central axis of the bottom of the seat plate, a mounting plate is fixedly connected to the inner cavity of the base, a rotating frame 1 is fixedly connected to the left side of the mounting plate, a movable block 1 is movably connected to the inner cavity of the rotating frame 1, a connecting plate is fixedly connected to the side of the movable block 1 away from the rotating frame 1, a controllable gas rod is fixedly connected to the side of the connecting plate away from the movable block 1, and the output end of the controllable gas rod is movably connected to the movable block 2.

[0004] The above patent has the following deficiencies: the chair controls the extension and retraction of the controllable gas rod output end through the handle or the backrest pressure sensor and then adjusts the inclination angle of the seat plate through the coordinated use of the rotating frame 2 and the rotating frame 1, thereby adjusting the user's sitting posture; however, the chair can only adjust the backrest angle of the user. Overall, the user's sitting posture will not change significantly, and the basic sitting posture remains the same, mainly supporting the user's buttocks. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a chair with adjustable sitting posture.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A chair with adjustable sitting posture, comprising: a load-bearing seat cushion and an auxiliary support pad, the bottom end of the load-bearing seat cushion is fixedly installed with a load-bearing connecting plate, the bottom end of the load-bearing connecting plate is fixedly installed with a cylinder connecting block, the bottom end of the cylinder connecting block is fixedly installed with a lifting cylinder, the bottom of the outer wall of the lifting cylinder is symmetrically fixedly connected with two supporting bent rods, the top end of the supporting bent rods is fixedly connected with a connecting mounting plate, the two connecting mounting plates are respectively fixedly installed on both sides of the bottom end of the auxiliary support pad, and the bottom end of the auxiliary support pad is fixedly installed with an auxiliary support plate; the bottom end of the auxiliary support plate is fixedly installed with a telescopic cylinder, the bottom of the telescopic end of the telescopic cylinder is fixedly installed with a sliding connecting rod, the bottom end of the sliding connecting rod is fixedly installed with a supporting base plate, and the lower surface of the support base plate is fixedly connected with a supporting rubber pad.

[0008] As a further solution of the utility model: a cylinder cartridge is fixedly sleeved on the outer wall of the telescopic cylinder, and a cylinder control handle 2 is arranged in the middle of the outer wall of the cylinder cartridge.

[0009] As a further solution of the utility model: the outer sliding sleeve of the sliding connecting rod is connected to a limiting sleeve, and the outer wall of the limiting sleeve is symmetrically fixedly connected with two positioning connecting arms.

[0010] As a further solution of the utility model: one end of the positioning connecting arm away from the limiting sleeve is fixedly connected with a connecting arm block, and the connecting arm block is fixedly connected to the supporting bent rod.

[0011] As a further solution of the utility model: a cylinder control handle is installed on one side of the cylinder connecting block, and a cylinder mounting tube is fixedly installed on the bottom end of the lifting cylinder.

[0012] As a further solution of the utility model: a plurality of supporting legs are fixedly connected to the outer wall of the bottom end of the cylinder mounting tube at equal intervals, and a universal roller is fixedly installed at the bottom of one end of the supporting leg.

[0013] As a further solution of the utility model: the back side of the auxiliary support plate is fixedly connected with a mounting arm, and the rear end of the mounting arm is fixedly connected with a connecting flange.

[0014] As a further solution of the utility model: a fixed flange is fixedly installed on the bottom end of the connecting flange, and a fixed installation cylinder is fixedly connected to the bottom end of the fixed flange.

[0015] Compared with the prior art, the utility model provides a chair with adjustable sitting posture, which has the following beneficial effects:

[0016] 1. The chair with adjustable sitting posture can be used by users in various sitting postures through the cooperation of the auxiliary support pad and the load-bearing seat cushion with adjustable height. The user can freely adjust the chair according to his or her own preferences and needs, and ensure the overall stability of the chair.

[0017] 2. The chair with adjustable sitting posture improves the bearing capacity of the auxiliary support pad and further improves the overall stability of the chair through the cooperation of the telescopic cylinder, the sliding connecting rod and the supporting bottom plate, ensuring that the chair will not shake at will when the user is using the chair, thereby ensuring the safety of the user.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure diagram of the overall assembly of the utility model Figure 1 ;

[0020] Figure 2 The three-dimensional structure diagram of the overall assembly of the utility model Figure 2 ;

[0021] Figure 3 The three-dimensional structure diagram of the overall assembly of the utility model Figure 3 .

[0022] In the figure: 1. Bearing seat cushion; 2. Bearing connecting plate; 3. Support connecting arm; 4. Support cushion; 5. Cylinder connecting block; 6. Cylinder control handle 1; 7. Lifting cylinder; 8. Cylinder mounting tube; 9. Support leg; 10. Universal roller; 11. Support bending rod; 12. Connecting mounting plate; 13. Auxiliary supporting pad; 14. Auxiliary supporting plate; 15. Mounting frame arm; 16. Connecting flange; 17. Fixed flange; 18. Fixed mounting tube; 19. Cylinder clamp; 20. Telescopic cylinder; 21. Cylinder control handle 2; 22. Sliding connecting rod; 23. Limiting sleeve; 24. Support base plate; 25. Support rubber pad; 26. Positioning connecting arm; 27. Connecting arm clamp block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1;

[0025] A chair with adjustable sitting posture, such as Figure 1 to Figure 2As shown, it includes: a bearing seat cushion 1 and an auxiliary support pad 13, a bearing connecting plate 2 is fixedly installed on the bottom end of the bearing seat cushion 1, a supporting connecting arm 3 is fixedly installed on the top of the back side of the bearing connecting plate 2, and the supporting connecting arm 3 is set as a single bending rod, the tail end of which is bent upward, and a supporting cushion 4 is fixedly installed on the top of the bending section.

[0026] A cylinder connection block 5 is fixedly installed at the bottom end of the bearing connection plate 2, a cylinder control handle 6 is installed on one side of the cylinder connection block 5, and a lifting cylinder 7 is fixedly installed at the bottom end of the cylinder connection block 5. The cylinder control handle 6 can control the lifting cylinder 7 to extend in two stages, that is, the bearing seat cushion 1 has three height positions, such as Figure 1 As shown, at this time, the lifting cylinder 7 is in a fully retracted state.

[0027] A cylinder mounting tube 8 is fixedly installed at the bottom end of the lifting cylinder 7, and a plurality of supporting legs 9 are fixedly connected to the outer wall of the bottom end of the cylinder mounting tube 8 at equal intervals. A reinforcing cross arm is fixedly connected between two adjacent supporting legs 9 to improve the stability of the overall device; a universal roller 10 is fixedly installed at the bottom of one end of the supporting leg 9, and the universal roller 10 drives the overall seat to move, thereby reducing the difficulty of moving the overall device.

[0028] Two supporting bent rods 11 are symmetrically fixedly connected to the bottom of the outer wall of the lifting cylinder 7, and a connecting mounting plate 12 is welded to the top of the supporting bent rod 11. The two connecting mounting plates 12 are respectively fixedly installed on both sides of the bottom end of the auxiliary support pad 13 by screws. The auxiliary support pad 13 is arranged at the bottom of the front side of the bearing seat cushion 1, and is mainly used to support the user's legs.

[0029] An auxiliary support plate 14 is fixedly mounted on the bottom end of the auxiliary support pad 13 by screws. A mounting arm 15 is integrally formed on the back of the auxiliary support plate 14 . A connecting flange 16 is fixedly connected to the rear end of the mounting arm 15 .

[0030] The bottom end of the connecting flange 16 is fixedly mounted with a fixing flange 17 by means of bolts. The bottom end of the fixing flange 17 is fixedly connected with a fixing installation tube 18 . The fixing installation tube 18 is fixedly sleeved on the top end of the lifting cylinder 7 .

[0031] When the present embodiment is used, the extension length of the lifting cylinder 7 is controlled by the cylinder control handle 6 according to the actual use needs, such as Figure 1As shown, at this time, the bearing seat cushion 1 and the auxiliary support cushion 13 are closest to each other, and the user sits on the bearing seat cushion 1, and the auxiliary support cushion 13 supports the user's thighs; or the user can cross his legs on the auxiliary support cushion 13, meditate, etc.; the lifting cylinder 7 is controlled to perform a first extension, at this time the user can kneel on the auxiliary support cushion 13, and at the same time sit on the bearing seat cushion 1 with his buttocks, and do leg exercises; the lifting cylinder 7 is controlled to perform a second extension, at this time the bearing seat cushion 1 and the auxiliary support cushion 13 are farthest apart, and the user can directly put his feet on the auxiliary support cushion 13 and sit on the bearing seat cushion 1 with his knees bent.

[0032] Embodiment 2, based on embodiment 1, as Figure 3 As shown;

[0033] A telescopic cylinder 20 is fixedly installed at the bottom end of the auxiliary support plate 14, and a cylinder clamp 19 is fixedly sleeved on the outer wall of the telescopic cylinder 20. The cylinder clamp 19 is fixedly installed on the lower surface of the auxiliary support plate 14, and a cylinder control handle 21 is provided in the middle of the outer wall of the cylinder clamp 19. The cylinder control handle 21 is used to control the extension and retraction of the telescopic cylinder 20.

[0034] A sliding connecting rod 22 is fixedly installed at the bottom of the telescopic end of the telescopic cylinder 20, and the outer sliding sleeve of the sliding connecting rod 22 is connected to a limiting sleeve 23. Two positioning connecting arms 26 are symmetrically welded to the outer wall of the limiting sleeve 23. The end of the positioning connecting arm 26 away from the limiting sleeve 23 is fixedly connected to a connecting arm block 27, and the connecting arm block 27 is fixedly connected to the supporting bent rod 11.

[0035] A support base plate 24 is fixedly mounted on the bottom end of the sliding connecting rod 22 , and a support rubber pad 25 is fixedly connected to the lower surface of the support base plate 24 . The support rubber pad 25 is used to increase the friction between the support base plate 24 and the ground, thereby improving the stability of the overall device.

[0036] On the basis of the first embodiment, when this embodiment is in use, the telescopic cylinder 20 is controlled to extend by the cylinder control handle 21, and the supporting base plate 24 is driven to move downward by the sliding connecting rod 22, so that the supporting rubber pad 25 is in contact with the ground. Then the user can sit on the chair in the manner of the first embodiment, or directly sit on the auxiliary support pad 13.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chair with adjustable sitting posture, characterized in that: include: A bearing seat cushion (1) and an auxiliary support cushion (13), wherein a bearing connection plate (2) is fixedly installed at the bottom end of the bearing seat cushion (1), a cylinder connection block (5) is fixedly installed at the bottom end of the bearing connection plate (2), a lifting cylinder (7) is fixedly installed at the bottom end of the cylinder connection block (5), two supporting bent rods (11) are symmetrically fixedly connected to the bottom of the outer wall of the lifting cylinder (7), the top end of the supporting bent rod (11) is fixedly connected to a connecting mounting plate (12), and the two connecting mounting plates (12) are fixedly connected to the bottom of the outer wall of the lifting cylinder (7). ) are respectively fixedly mounted on both sides of the bottom end of the auxiliary support pad (13), and the bottom end of the auxiliary support pad (13) is fixedly mounted with an auxiliary support plate (14); the bottom end of the auxiliary support plate (14) is fixedly mounted with a telescopic cylinder (20), the bottom of the telescopic end of the telescopic cylinder (20) is fixedly mounted with a sliding connecting rod (22), the bottom end of the sliding connecting rod (22) is fixedly mounted with a supporting bottom plate (24), and the lower surface of the supporting bottom plate (24) is fixedly connected with a supporting rubber pad (25).

2. The chair with adjustable sitting posture according to claim 1, characterized in that: The outer wall of the telescopic cylinder (20) is fixedly sleeved with a cylinder cartridge (19), and a second cylinder control handle (21) is provided in the middle of the outer wall of the cylinder cartridge (19).

3. The chair with adjustable sitting posture according to claim 1, characterized in that: The outer portion of the sliding connection rod (22) is slidably sleeved with a limiting sleeve (23), and the outer wall of the limiting sleeve (23) is symmetrically fixedly connected with two positioning connection arms (26).

4. The chair with adjustable sitting posture according to claim 3, characterized in that: One end of the positioning connecting arm (26) away from the limiting sleeve (23) is fixedly connected to a connecting arm clamp (27), and the connecting arm clamp (27) is fixedly connected to the supporting bent rod (11).

5. The chair with adjustable sitting posture according to claim 1, characterized in that: A cylinder control handle (6) is installed on one side of the cylinder connection block (5), and a cylinder mounting tube (8) is fixedly installed on the bottom end of the lifting cylinder (7).

6. The chair with adjustable sitting posture according to claim 5, characterized in that: A plurality of support legs (9) are fixedly connected to the outer wall of the bottom end of the cylinder mounting tube (8) at equal intervals, and a universal roller (10) is fixedly mounted on the bottom of one end of the support leg (9).

7. The chair with adjustable sitting posture according to claim 1, characterized in that: The back side of the auxiliary support plate (14) is fixedly connected to a mounting frame arm (15), and the rear end of the mounting frame arm (15) is fixedly connected to a connecting flange (16).

8. The chair with adjustable sitting posture according to claim 7, characterized in that: A fixed flange (17) is fixedly mounted on the bottom end of the connecting flange (16), and a fixed mounting cylinder (18) is fixedly connected to the bottom end of the fixed flange (17).

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