A reading and writing posture correction chair

Abstract

This utility model relates to the field of posture correction chair technology, and particularly to a posture correction chair for reading and writing. It includes a load-bearing base, with lockable omnidirectional wheels fixedly connected to the lower circumference of the base. A foot pedal assembly is fixedly connected to the rear wall of the groove. An adjustable support plate is fixedly connected to the upper rear part of the load-bearing base. Multiple adjustment holes are opened at the left end of the adjustable support plate. A backrest assembly and a seat assembly are respectively provided on the upper and middle parts of the outer surface of the adjustable support plate. The seat assembly includes a first adjusting sleeve block, which is threadedly fixed to the middle part of the outer surface of the adjustable support plate by a first adjusting fixing bolt. This posture correction chair for reading and writing, through its multi-component, multi-dimensional adjustment function, meets the personalized needs of people of different heights and body types, while its optimized structural design ensures safety and stability during use.

Description

Technical Field

[0001] This utility model relates to the field of corrective chair technology, and in particular to a reading and writing posture corrective chair. Background Technology

[0002] In daily study and office settings, maintaining an incorrect sitting posture for reading and writing for a long time can easily lead to health problems such as scoliosis, myopia, and lumbar muscle strain. The myopia rate among teenagers and the prevalence of lumbar spine diseases among adults are increasing year by year, prompting the market to launch a variety of posture correction products, but existing products still have shortcomings.

[0003] 1. Most traditional posture correction chairs only support height adjustment, which is insufficient to meet the multi-dimensional adjustment needs of people of different heights and body types for seat position, backrest angle, footrest height, etc., and cannot provide users with comprehensive, comfortable, and ergonomic support, easily leading to localized fatigue; 2. Some posture correction chairs have poor structural design, and the whole chair is prone to wobbling or even tipping over when adjusting the parts. The design of adjustment holes and gaps does not meet safety standards, posing a risk of pinching injury and compromising safety during use; Therefore, a reading and writing posture correction chair needs to be designed to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a reading and writing posture correction chair, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A posture correction chair for reading and writing includes a load-bearing base. Lockable omnidirectional wheels are fixedly connected to the lower end of the load-bearing base. A groove is opened on the front of the outer surface of the load-bearing base. Sliding grooves are opened on the left and right walls of the groove. A foot pedal assembly is fixedly connected to the rear wall of the groove. An adjustable support plate is fixedly connected to the upper rear of the load-bearing base. Multiple adjustment holes are opened on the left end of the adjustable support plate. A backrest assembly and a seat assembly are respectively provided on the upper part and the middle part of the outer surface of the adjustable support plate.

[0007] The seat assembly includes a first adjusting sleeve block. A reinforcing block is fixedly connected to the front end of the first adjusting sleeve block. The other end of the reinforcing block is fixedly connected to the seat body. A connecting shaft is provided on both the left and right sides of the seat body. A vertical rod is fixedly connected to the top of each connecting shaft. A sleeve is fitted onto the outer surface of the vertical rod. A handle plate is fixedly connected to the upper end of the sleeve. A first adjusting fixing bolt is threaded to the left end of the first adjusting sleeve block. The first adjusting sleeve block is threadedly fixed to the middle of the outer surface of the adjusting support plate by the first adjusting fixing bolt.

[0008] Preferably, the backrest assembly includes a second sleeve block, the left end of which is threadedly connected to a second adjusting fixing bolt, the front end of which is fixedly connected to a side clamp, the front end of which has a movable groove, a through-screw inserted into the movable groove, a support frame fixedly connected to the outer surface of the through-screw, buffer blocks fixedly connected to the left and right front ends of the support frame, the other ends of the two buffer blocks being fixedly connected to the backrest body, a fixing sleeve block threadedly connected to the left side of the outer surface of the through-screw, and the second sleeve block being threadedly fixedly connected to the upper part of the outer surface of the adjusting support plate by the second adjusting fixing bolt.

[0009] Preferably, the foot pedal assembly includes an electric push rod, the output end of which is fixedly connected to a power module box, a support column is fixedly connected to the upper middle part of the power module box, the upper end of the support column is fixedly connected to the foot pedal body, and the rear end of the electric push rod is fixedly connected to the rear groove wall of the groove.

[0010] Preferably, the lockable omnidirectional wheels are evenly distributed at the four corners of the lower end of the load-bearing base, and the axle of the lockable omnidirectional wheels is perpendicular to the side of the load-bearing base. The sliding groove extends along the length of the left and right groove walls of the groove, and the two sliding grooves are parallel to each other.

[0011] Preferably, the power module box is connected to the electric push rod via a line and provides power to the electric push rod, and the left and right sides of the power module box are slidably connected in the slide groove.

[0012] Preferably, the position and size of the first adjusting fixing bolt are adapted to the position and size of the adjusting hole, and the two handle plates have the same structure and are symmetrically distributed from left to right.

[0013] Preferably, the right end of the insert screw is movably connected to the right wall of the movable groove via a bearing, and the second adjusting fixing bolt passes through the left end of the side clamp and is fixed by the threaded installation of the fixing sleeve block.

[0014] Preferably, the adjusting support plate is tilted backward by 15°, and the backrest assembly is installed on the upper part of the outer surface of the adjusting support plate through the second sleeve block, and the tilting direction of the adjusting support plate is consistent with that of the backrest body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, the first adjusting sleeve and adjusting hole achieve precise height adjustment in 25mm increments. Combined with the upright, sleeve and handrail, the arm support can be flexibly adjusted. The backrest assembly achieves position adjustment through the second sleeve and angle adjustment through the inserted screw. In addition, the electric push rod of the foot pedal assembly achieves electric adjustment of the foot pedal position and height. It comprehensively meets the multi-dimensional adjustment needs of people of different heights and body types for seat front and back position, backrest angle, foot pedal height and other aspects. It provides users with comprehensive, comfortable and ergonomic support and effectively avoids fatigue caused by uneven local force.

[0017] 2. In this utility model, the seat assembly adopts a composite structure of high-strength engineering plastic and aluminum alloy. The force distribution is optimized by strengthening the connecting blocks and symmetrically distributed handrails. The components of the backrest assembly fit together tightly and can be firmly fixed after adjustment. The power module box of the foot pedal assembly is slidably connected to the slide groove to achieve stable guidance. The overall structure is reasonably designed, and there will be no shaking or tipping when adjusting the components. Moreover, there are no adjustment holes or gaps that do not meet safety standards, eliminating the risk of pinching and ensuring safe use. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of a reading and writing posture correction chair according to the present invention;

[0019] Figure 2 This is a second-view structural diagram of a reading and writing posture correction chair according to the present invention;

[0020] Figure 3 This is a schematic diagram of the seat component structure of a reading and writing posture correction chair according to the present invention;

[0021] Figure 4 This is a schematic diagram of the backrest assembly structure of a reading and writing posture correction chair according to the present invention;

[0022] Figure 5 This is a schematic diagram of the footrest assembly structure of a reading and writing posture correction chair according to the present invention;

[0023] Figure 6 This is a detailed enlarged structural diagram of section A of the reading and writing posture correction chair of this utility model.

[0024] In the diagram: 1. Load-bearing base; 2. Lockable omnidirectional wheel; 4. Foot pedal assembly; 5. Groove; 6. Slide groove; 7. Adjustable support plate; 8. Backrest assembly; 9. Seat assembly; 10. Adjustment hole; 91. First adjustment sleeve; 92. First adjustment fixing bolt; 93. Reinforcing connecting block; 94. Seat body; 95. Connecting shaft; 96. Upright pole; 97. Sleeve; 98. Handrail; 81. Second connecting sleeve; 82. Second adjustment fixing bolt; 83. Side clamp; 84. Movable groove; 85. Through screw; 86. Fixing sleeve; 87. Support frame; 88. Buffer block; 89. Backrest body; 41. Electric push rod; 42. Power module box; 43. Support column; 44. Foot pedal body. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-6 This utility model provides a technical solution:

[0029] A posture correction chair for reading and writing includes a load-bearing base 1. Lockable omnidirectional wheels 2 are fixedly connected to the lower end of the load-bearing base 1. A groove 5 is opened on the front of the outer surface of the load-bearing base 1. Sliding grooves 6 are opened on the left and right groove walls of the groove 5. A foot pedal assembly 4 is fixedly connected to the rear groove wall of the groove 5. An adjustable support plate 7 is fixedly connected to the upper rear of the load-bearing base 1. Multiple adjustment holes 10 are opened on the left end of the adjustable support plate 7. A backrest assembly 8 and a seat assembly 9 are respectively provided on the upper and middle parts of the outer surface of the adjustable support plate 7.

[0030] In this embodiment, the seat assembly 9 includes a first adjusting sleeve 91. A reinforcing connecting block 93 is fixedly connected to the front end of the first adjusting sleeve 91, and a seat body 94 is fixedly connected to the other end of the reinforcing connecting block 93. A connecting shaft 95 is provided on both the left and right sides of the seat body 94. A vertical rod 96 is fixedly connected to the top of each connecting shaft 95. A sleeve 97 is sleeved on the outer surface of the vertical rod 96. A handle plate 98 is fixedly connected to the upper end of the sleeve 97. A first adjusting fixing bolt 92 is threadedly connected to the left end of the first adjusting sleeve 91. The first adjusting sleeve 91 is threadedly fixed to the middle of the outer surface of the adjusting support plate 7 by the first adjusting fixing bolt 92. The position and size of the first adjusting fixing bolt 92 are adapted to the position and size of the adjusting hole 10. The two handle plates 98 have the same structure and are symmetrically distributed from left to right.

[0031] Through the above scheme: the seat component 9 of the reading and writing posture correction chair adopts a high-strength engineering plastic and aluminum alloy composite structure. Multi-dimensional adjustment is achieved through modular design. During operation, the user can first loosen the first adjustment fixing bolt 92 on the left side of the first adjustment sleeve block 91. This first adjustment fixing bolt 92 cooperates with the array of adjustment holes 10 on the adjustment support plate 7 to achieve height adjustment in 25mm increments. The reinforcing connecting block 93 is rigidly connected to the rear end of the seat body 94 using aluminum alloy profiles. The surface of the seat body 94 is covered with 30mm thick high-density memory foam, and the edges are rounded by 25mm to improve comfort. The connecting shafts 95 on the left and right sides are connected to the seat body 94 through embedded bearings to achieve ±15° rotation adjustment. After adjustment, the eccentric locking mechanism... The seat body 94 is fixed in place. The connecting shafts 95 on the left and right sides are fixed to the top of the uprights 96. The sleeves 97 on the outer surface of the uprights 96 are adjustable in height. The upper end of the sleeves 97 is fixedly connected to the handles 98 to provide support for the user. The first adjusting bolt 92, which is threaded to the left end of the first adjusting block 91, is adapted to the position and size of the adjusting hole 10. By tightening the first adjusting bolt 92, the first adjusting block 91 can be fixed to the middle of the outer surface of the adjusting support plate 7. The two symmetrically distributed handles 98 provide balanced support. This design realizes flexible adjustment of seat height and position, enhances comfort and stability. At the same time, the structure of the reinforcing connecting block 93 and the symmetrical handles 98 optimizes the force distribution and reduces fatigue during long-term use.

[0032] In this embodiment, the backrest assembly 8 includes a second sleeve block 81. The left end of the second sleeve block 81 is threadedly connected to a second adjusting fixing bolt 82. The front end of the second sleeve block 81 is fixedly connected to a side clamp 83. The front end of the side clamp 83 has a movable groove 84. A through screw 85 is inserted into the movable groove 84. A support frame 87 is fixedly connected to the outer surface of the through screw 85. Buffer blocks 88 are fixedly connected to the left and right front ends of the support frame 87. The other ends of the two buffer blocks 88 are fixedly connected to the backrest body 89. A fixing sleeve block 86 is threadedly connected to the left side of the outer surface of the through screw 85. The second sleeve block 81 is threadedly fixed to the upper part of the outer surface of the adjusting support plate 7 through the second adjusting fixing bolt 82. The right end of the through screw 85 is movably connected to the right groove wall of the movable groove 84 through a bearing. The second adjusting fixing bolt 82 passes through the left end of the side clamp 83 and is fixedly installed through the fixing sleeve block 86.

[0033] Through the above scheme: the second sleeve block 81 is threadedly fixed to the adjustment support plate 7 by the second adjusting fixing bolt 82, realizing the adjustment of the position of the backrest assembly 8 on the upper part of the adjustment support plate 7 to adapt to different usage needs. The side clip 83 connected to the front end of the second sleeve block 81 has a movable groove 84 in which a screw 85 is inserted. One end of the inserted screw 85 rotates on the right groove wall of the movable groove 84 through a bearing. The outer surface is connected to the support frame 87, the buffer block 88 and the backrest body 89. At the same time, the fixing block 86 threaded to the left side of the outer surface of the inserted screw 85 cooperates with the second adjusting fixing bolt 82 to pass through the side clip 83 and fix it, so that the backrest body 89 can be adjusted in angle by rotating the inserted screw 85 to fit the curve of the human back. The buffer block 88 can effectively buffer back pressure and provide a comfortable support experience. The entire backrest assembly 8 achieves dual adjustment of position and angle through the cooperation of various components, taking into account both comfort and functionality, and improving the convenience and comfort of use.

[0034] In this embodiment, the foot pedal assembly 4 includes an electric push rod 41. The output end of the electric push rod 41 is fixedly connected to a power module box 42. A support column 43 is fixedly connected to the upper middle part of the power module box 42. The upper end of the support column 43 is fixedly connected to the foot pedal body 44. The rear end of the electric push rod 41 is fixedly connected to the rear wall of the groove 5. Lockable omnidirectional wheels 2 are evenly distributed at the four corners of the lower end of the load-bearing base 1, and the axle of the lockable omnidirectional wheels 2 is perpendicular to the side of the load-bearing base 1. The slide groove 6 extends along the length direction of the left and right walls of the groove 5, and the two slide grooves 6 are parallel to each other. The power module box 42 is connected to the electric push rod 41 through a line and provides power to the electric push rod 41. The left and right sides of the power module box 42 are slidably connected in the slide groove 6. The adjustable support plate 7 is tilted backward by 15°. The backrest assembly 8 is installed on the upper part of the outer surface of the adjustable support plate 7 through the second sleeve block 81, and the tilt direction of the adjustable support plate 7 is consistent with that of the backrest body 89.

[0035] Through the above scheme: the electric push rod 41 is fixed to the rear wall of the groove 5, and its output end is connected to the power module box 42. The power module box 42 supplies power to the electric push rod 41 through the line, and slides through the parallel sliding grooves 6 extending on the left and right sides of the groove 5 to achieve stable guidance. The support column 43 at the upper end of the power module box 42 fixes the foot pedal body 44. After the electric push rod 41 is started, the power module box 42 can be moved along the sliding groove 6 by telescopic control, thereby adjusting the position and height of the foot pedal body 44 to adapt to the leg length and comfort needs of different users. Four lockable universal wheels 2 are evenly distributed at the four corners of the lower end of the load-bearing base 1, with the axis perpendicular to the side, which facilitates the movement and fixation of the whole device. The adjustable support plate 7 is tilted backward by 15°, and the backrest assembly 8 is installed on it through the second sleeve block 81. The tilt direction of the backrest body 89 is consistent with that of the adjustable support plate 7. With the adjustable foot pedal assembly 4, the legs and back of the human body can obtain comfortable support when using it, forming an ergonomic support system and improving the comfort and convenience of use.

[0036] It should be noted that this utility model is a reading and writing posture correction chair. When the reading and writing posture correction chair is in operation, the lockable universal wheels 2 are evenly distributed at the four corners of the lower end of the load-bearing base 1, which facilitates the movement of the chair. After locking, it can maintain stability. When the user sits on the seat body 94, by loosening the first adjusting fixing bolt 92, the position of the first adjusting sleeve 91 on the adjusting support plate 7 can be adjusted. The seat assembly 9 can be adjusted to a suitable height and fixed by using the adjusting hole 10. At the same time, the upright 96, sleeve 97 and armrest plate 98 can assist in adjusting the arm placement position. The backrest assembly 8 is fixed to the upper part of the outer surface of the adjusting support plate 7 by the second adjusting fixing bolt 82. The second adjusting bolt 82 can adjust the height of the backrest assembly 8. Loosening the fixing block 86 allows the backrest body 89 to be rotated in the movable groove 84 via the threaded screw 85, thus adjusting the tilt angle of the backrest body 89 and providing support for the user's back. In the foot pedal assembly 4, the rear end of the electric push rod 41 is fixed to the rear wall of the groove 5. The power module box 42 supplies power to the electric push rod 41 through a circuit. The two sides of the power module box 42 slide in the sliding groove 6. The electric push rod 41 pushes the power module box 42, the support column 43, and the foot pedal body 44 to rise and fall to accommodate the height needs of different users. The overall system helps users maintain a correct reading and writing posture through the coordinated adjustment of each component.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A posture correction chair for reading and writing, comprising a load-bearing base (1), characterized in that: Lockable omnidirectional wheels (2) are fixedly connected to the lower end of the load-bearing base (1). A groove (5) is opened on the front of the outer surface of the load-bearing base (1). Sliding grooves (6) are opened on the left and right groove walls of the groove (5). A foot pedal assembly (4) is fixedly connected to the rear groove wall of the groove (5). An adjustable support plate (7) is fixedly connected to the upper rear of the load-bearing base (1). Multiple adjustment holes (10) are opened on the left end of the adjustable support plate (7). A backrest assembly (8) and a seat assembly (9) are respectively provided on the upper part and the middle part of the outer surface of the adjustable support plate (7). The seat assembly (9) includes a first adjusting sleeve (91), a reinforcing connecting block (93) is fixedly connected to the front end of the first adjusting sleeve (91), and a seat body (94) is fixedly connected to the other end of the reinforcing connecting block (93). A connecting shaft (95) is provided on both the left and right sides of the seat body (94). A vertical rod (96) is fixedly connected to the top of each connecting shaft (95). A sleeve (97) is sleeved on the outer surface of the vertical rod (96). A handrail (98) is fixedly connected to the upper end of the sleeve (97). A first adjusting fixing bolt (92) is threadedly connected to the left end of the first adjusting sleeve (91). The first adjusting sleeve (91) is threadedly fixed to the middle of the outer surface of the adjusting support plate (7) by the first adjusting fixing bolt (92).

2. The posture correction chair for reading and writing according to claim 1, characterized in that: The backrest assembly (8) includes a second sleeve block (81), the left end of which is threaded with a second adjusting fixing bolt (82), the front end of which is fixedly connected with a side clip (83), the front end of which has a movable groove (84), a through screw (85) inserted into the movable groove (84), the outer surface of which is fixedly connected with a support frame (87), the left and right front ends of which are both fixedly connected with buffer blocks (88), the other ends of which are fixedly connected with the backrest body (89), the left side of the outer surface of which is threaded with a fixing block (86), and the second sleeve block (81) is threadedly fixedly connected to the upper part of the outer surface of the adjusting support plate (7) by the second adjusting fixing bolt (82).

3. The posture correction chair for reading and writing according to claim 1, characterized in that: The foot pedal assembly (4) includes an electric push rod (41), the output end of which is fixedly connected to a power module box (42), a support column (43) is fixedly connected to the upper middle part of the power module box (42), the upper end of the support column (43) is fixedly connected to the foot pedal body (44), and the rear end of the electric push rod (41) is fixedly connected to the rear groove wall of the groove (5).

4. The posture correction chair for reading and writing according to claim 1, characterized in that: The lockable omnidirectional wheels (2) are evenly distributed at the four corners of the lower end of the load-bearing base (1), and the axis of the lockable omnidirectional wheels (2) is perpendicular to the side of the load-bearing base (1). The slide groove (6) extends along the length of the left and right groove walls of the groove (5), and the two slide grooves (6) are parallel to each other.

5. A posture correction chair for reading and writing according to claim 3, characterized in that: The power module box (42) is connected to the electric push rod (41) via a line and provides power to the electric push rod (41). The left and right sides of the power module box (42) are slidably connected in the slide groove (6).

6. A posture correction chair for reading and writing according to claim 1, characterized in that: The position and size of the first adjusting fixing bolt (92) are adapted to the position and size of the adjusting hole (10), and the two handle plates (98) have the same structure and are symmetrically distributed from left to right.

7. A posture correction chair for reading and writing according to claim 2, characterized in that: The right end of the insert screw (85) is movably connected to the right wall of the movable groove (84) via a bearing, and the second adjusting fixing bolt (82) passes through the left end of the side clamp (83) and is fixed by the threaded installation of the fixing sleeve (86).

8. A posture correction chair for reading and writing according to claim 1, characterized in that: The adjusting support plate (7) is tilted backward by 15°, and the backrest assembly (8) is installed on the upper part of the outer surface of the adjusting support plate (7) through the second sleeve block (81), and the tilting direction of the adjusting support plate (7) is consistent with that of the backrest body (89).

Images