Office chair with lifting type storage plate

Abstract

The utility model discloses an office chair with a lifting type object placing plate, which comprises a seat plate, a lifting type object placing plate and a lifting type object placing plate, the lower end of the fixed rod is fixedly connected with a plurality of fixed plates which are distributed circumferentially; the object placing plate is used for placing objects; the lifting device comprises a supporting rod I and a supporting rod II which are matched with each other; the fixing device comprises a bolt and a plurality of limiting holes, the lower portion of the pressing rod is pressed, the lower portion of the pressing rod compresses the telescopic rod and the spring forwards, meanwhile, the upper portion of the pressing rod rotates backwards around the limiting rod, the clamping block is pulled out of the clamping groove, lifting adjustment is conducted, and the bolt is rotated firstly to move downwards till being completely separated from the limiting holes; and then, the object placing plate is rotated to an angle which does not affect the getting up of the user.

Description

Technical Field

[0001] This utility model relates to the field of office chair technology, specifically to an office chair with a height-adjustable storage shelf. Background Technology

[0002] Office chairs refer to various types of chairs provided for convenience in daily work and social activities. In terms of usage, they are mainly found in offices, open-plan staff offices, conference rooms, reading rooms, libraries, training rooms, laboratories, staff dormitories, and staff canteens. When conducting training or working, where it is necessary to place a computer or take notes, office chairs with built-in shelves are generally used to store items while working.

[0003] The existing technology still has some problems: 1. The existing office chairs with shelves do not have the function of height adjustment and the height is fixed. Since different office workers have different body sizes, if the shelf cannot be adjusted, then when using it, office workers can only look or write in an awkward posture, which is not very practical.

[0004] 2. Typical shelves can rotate freely to facilitate office workers sitting down or getting up, but they lack a fixed function. Therefore, they are not very stable during use. Accidental contact can cause the shelf to rotate, resulting in items falling off. If the shelf is fixed, it is inconvenient to install handrails, as this would affect getting up and reduce comfort. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide an office chair with a liftable shelf.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0007] Office chairs with adjustable shelves include:

[0008] Seat plate, with a backrest fixedly connected to its rear end;

[0009] A fixed rod, the lower end of which is fixedly connected to several circumferentially distributed fixed plates;

[0010] A shelf for placing items;

[0011] A lifting device, comprising a first support rod and a second support rod that cooperate with each other, wherein the lifting device raises or lowers the shelf by adjusting the cooperation length of the first support rod and the second support rod;

[0012] A fixing device, comprising bolts and several limiting holes, wherein the fixing device extends into the limiting holes via bolts to fix the shelf;

[0013] As an improvement, the fixing rod is fixedly connected to the middle of the lower end of the seat plate, and the lower ends of the fixing plates that are far apart from each other are provided with casters.

[0014] As an improvement, armrests are fixedly connected to both sides of the upper end of the seat plate.

[0015] As an improvement, the lower part of the second support rod and the front part of one side of the seat plate are connected by a connecting rod, the second support rod is hollow inside, and the first support rod is slidably connected inside the second support rod.

[0016] As an improvement, a fixed frame is fixedly connected to the upper rear end of the second support rod, and a locking block is provided in the fixed frame. Several vertically distributed locking slots are opened at the rear end of the first support rod, and the rear end of the locking block extends through the second support rod into the locking slot.

[0017] As an improvement, a pressing rod is rotatably connected to the lower rear end of the card block, and a limiting rod is rotatably connected to the front end of the pressing rod. Both sides of the limiting rod are fixedly connected to the inner wall of the fixed frame.

[0018] As an improvement, the lower part of the pressing rod and the second support rod are connected by a telescopic rod through a hinge. A spring is sleeved on the outside of the telescopic rod, and the front and rear ends of the spring are fixedly connected to the pressing rod and the second support rod, respectively.

[0019] As an improvement, the shelf is positioned above the front of the seat, and a turntable is rotatably connected to the upper end of the support rod, with the turntable fixedly connected to the lower end of one side of the shelf.

[0020] As an improvement, the limiting holes are evenly opened on the lower outer edge of the turntable, and a fixing block is fixedly connected to the support rod below the turntable. The fixing block has a threaded hole, and the bolt is threaded into the threaded hole. The upper end of the bolt passes through the threaded hole and extends into the limiting hole.

[0021] The advantages of this utility model compared with the prior art are as follows: 1. Pressing the lower part of the pressing rod compresses the telescopic rod and spring forward, while the upper part of the pressing rod rotates backward around the limiting rod, pulling the locking block out of the slot for adjustment. After adjustment, once the slot is aligned with the locking block, the pressing rod can be released. Under the spring's rebound force, the upper part of the pressing rod pushes the locking block into the slot, completing the adjustment. This makes it convenient for office workers of different heights to use and has a high degree of practicality.

[0022] 2. First, rotate the bolt to move it downwards until it is completely out of the limiting hole, thus releasing the limiting of the shelf. Then rotate it so that it does not affect the angle of standing up, aligning the limiting hole with the bolt. Then rotate the bolt in the opposite direction to move it upwards until its upper end extends into the limiting hole. This allows you to both rotate the shelf and fix it in place, providing multiple functions. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention. Figure 1 ;

[0024] Figure 2 This is a three-dimensional schematic diagram of the present invention. Figure 2 ;

[0025] Figure 3 This is an enlarged schematic diagram of utility model A;

[0026] Figure 4 This is a cross-sectional schematic diagram of the present invention;

[0027] Figure 5 This is an enlarged schematic diagram of utility model B;

[0028] As shown in the figure: 1. Seat plate; 2. Backrest; 3. Fixing rod; 4. Fixing plate; 5. Storage plate; 6. Lifting device; 7. Support rod one; 8. Support rod two; 9. Fixing device; 10. Bolt; 11. Limiting hole; 12. Casters; 13. Armrest; 14. Fixing frame; 15. Locking block; 16. Locking groove; 17. Pressing rod; 18. Limiting rod; 19. Telescopic rod; 20. Spring; 21. Turntable; 22. Fixing block; 23. Threaded hole; 24. Connecting rod. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Combined with appendix Figures 1-5 An office chair with a height-adjustable storage shelf mainly includes: a seat 1, a fixing rod 3, a storage shelf 5, a lifting device 6, and a fixing device 9. The backrest 2 is fixedly connected to the rear end of the seat 1. The front end of the backrest 2 is shaped to fit the human back to increase comfort. The fixing rod 3 is fixedly connected to the lower middle part of the seat 1. Several circumferentially distributed fixing plates 4 are fixedly connected to the lower end of the fixing rod 3. Universal wheels 12 are provided at the lower ends of the fixing plates 4, which are far apart from each other, to facilitate moving the office chair. Armrests 13 are fixedly connected to both sides of the upper end of the seat 1 to increase comfort during work.

[0031] Then, the shelf 5 is used to place items. The lifting device 6 includes a support rod 1 7 and a support rod 2 8 that cooperate with each other. The lifting device 6 raises and lowers the shelf 5 by adjusting the cooperation length of the support rod 1 7 and the support rod 2 8. The lower part of the support rod 2 8 and the front part of one side of the seat plate 1 are connected by a connecting rod 24. The support rod 2 8 is hollow inside, and the support rod 1 7 is slidably connected inside the support rod 2 8.

[0032] A fixed frame 14 is fixedly connected to the upper rear end of the support rod 2 8. A locking block 15 is provided inside the fixed frame 14. Several vertically distributed locking slots 16 are opened at the rear end of the support rod 1 7. The rear end of the locking block 15 extends through the support rod 2 8 into the locking slot 16. A pressing rod 17 is rotatably connected to the lower rear end of the locking block 15. A limiting rod 18 is rotatably connected to the front end of the pressing rod 17. Both sides of the limiting rod 18 are fixedly connected to the inner wall of the fixed frame 14. A telescopic rod 19 is hinged between the lower part of the pressing rod 17 and the support rod 2 8. A spring 20 is sleeved on the outside of the telescopic rod 19. The front and rear ends of the spring 20 are fixedly connected to the pressing rod 17 and the support rod 2 8, respectively.

[0033] When lifting or lowering is required, first grasp support rod 7 and pull it upwards to ensure sufficient space between the upper end of the inner wall of the locking block 15 and the locking groove 16. This prevents the locking block 15 from being interfered with by the upper end of the inner wall of the locking groove 16 during its circular motion. Press the lower part of the pressing rod 17, which compresses the telescopic rod 19 and the spring 20 forward. At the same time, the upper part of the pressing rod 17 rotates backward around the limiting rod 18, pulling the locking block 15 out of the locking groove 16. This releases the limiting connection between support rod 7 and support rod 8, allowing for lifting and lowering adjustments. After adjustment, once the locking groove 16 is aligned with the locking block 15, the pressing rod 17 can be released. Under the rebound force of the spring 20, the lower part of the pressing rod 17 returns to its original position, and the upper part of the pressing rod 17 pushes the locking block 15 into the locking groove 16, completing the adjustment.

[0034] Next, the fixing device 9 includes bolts 10 and several limiting holes 11. The fixing device 9 extends into the limiting holes 11 through the bolts 10 to fix the shelf 5. The shelf 5 is set above the front of the base plate 1. The upper end of the support rod 7 is rotatably connected to a turntable 21. The turntable 21 is fixedly connected to the lower end of one side of the shelf 5. The limiting holes 11 are evenly opened on the lower outer edge of the turntable 21. A fixing block 22 is fixedly connected to the support rod 7 below the turntable 21. The fixing block 22 has a threaded hole 23. The bolts 10 are threadedly connected to the threaded hole 23. The upper end of the bolts 10 passes through the threaded hole 23 and extends into the limiting hole 11.

[0035] When an office worker needs to get up or change the horizontal angle of the shelf 5, first rotate the bolt 10 to move it downwards until it is completely out of the limiting hole 11, thus releasing the limiting of the shelf 5. Then rotate it so that it does not affect the angle of getting up, aligning the limiting hole 11 with the bolt 10. Then rotate the bolt 10 in the opposite direction to move it upwards until its upper end extends into the limiting hole 11, thus completing the fixation. When needed, after the office worker sits on the seat 1, repeat the above steps to adjust the shelf 5 to a suitable position and then fix it.

[0036] It should be noted that all electrical components mentioned in this document are connected to an external controller and 220V AC mains power. The controller can be a conventional, known device such as a computer. Detailed descriptions of known functions and components are omitted in this specific embodiment. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available equipment. The information disclosed in this background section is intended only to enhance understanding of the overall background of this utility model and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An office chair with a height-adjustable storage shelf, characterized in that, include: Seat plate (1), with a backrest (2) fixedly connected to its rear end; A fixing rod (3) is fixedly connected to a plurality of circumferentially distributed fixing plates (4) at its lower end; A shelf (5) for placing items; The lifting device (6) includes a first support rod (7) and a second support rod (8) that cooperate with each other. The lifting device (6) raises and lowers the shelf (5) by adjusting the cooperation length of the first support rod (7) and the second support rod (8). The fixing device (9) includes a bolt (10) and several limiting holes (11). The fixing device (9) extends into the limiting holes (11) through the bolt (10) to fix the shelf (5).

2. The office chair with a height-adjustable storage shelf according to claim 1, characterized in that: The fixing rod (3) is fixedly connected to the middle of the lower end of the seat plate (1), and the lower ends of the fixing plates (4) that are far apart from each other are provided with casters (12).

3. The office chair with a height-adjustable storage shelf according to claim 1, characterized in that: Handrails (13) are fixedly connected to both sides of the upper end of the seat plate (1).

4. The office chair with a height-adjustable storage shelf according to claim 1, characterized in that: The lower part of the second support rod (8) and the front part of the seat plate (1) are connected by a connecting rod (24) through a fixed connection. The second support rod (8) is hollow inside, and the first support rod (7) is slidably connected inside the second support rod (8).

5. The office chair with a height-adjustable storage shelf according to claim 4, characterized in that: The upper rear end of the second support rod (8) is fixedly connected to a fixed frame (14), and a locking block (15) is provided in the fixed frame (14). The rear end of the first support rod (7) has several vertically distributed locking slots (16), and the rear end of the locking block (15) extends through the second support rod (8) into the locking slot (16).

6. The office chair with a height-adjustable shelf according to claim 5, characterized in that: The lower rear end of the card block (15) is rotatably connected to a pressing rod (17), and the front end of the pressing rod (17) is rotatably connected to a limiting rod (18). Both sides of the limiting rod (18) are fixedly connected to the inner wall of the fixed frame (14).

7. The office chair with a height-adjustable storage shelf according to claim 6, characterized in that: The lower part of the pressing rod (17) and the second support rod (8) are connected by a telescopic rod (19) hinged together. A spring (20) is sleeved on the outside of the telescopic rod (19). The front and rear ends of the spring (20) are fixedly connected to the pressing rod (17) and the second support rod (8) respectively.

8. The office chair with a height-adjustable shelf according to claim 7, characterized in that: The shelf (5) is located above the front of the seat plate (1), and the upper end of the support rod (7) is rotatably connected to a turntable (21), which is fixedly connected to the lower end of one side of the shelf (5).

9. The office chair with a height-adjustable shelf according to claim 8, characterized in that: The limiting holes (11) are evenly opened on the lower outer edge of the turntable (21). A fixing block (22) is fixedly connected to the support rod (7) below the turntable (21). The fixing block (22) has a threaded hole (23). The bolt (10) is threadedly connected to the threaded hole (23). The upper end of the bolt (10) extends through the threaded hole (23) into the limiting hole (11).

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