Adjustable waist supporting structure and office chair

Abstract

The utility model discloses an adjustable waist support structure and office chair, including: seat body and worm gear, one side of seat body is fixed with support plate, one side of seat body is fixedly connected with support frame, one side of support frame is fixedly connected with fixed block. According to the adjustable waist supporting structure and the office chair, a threaded rod is rotated to be in threaded transmission with a threaded block, and the threaded rod can push an adjusting plate to move when moving, so that a supporting plate made of a plastic material is deformed to be closer to the waist of a user, and the waist of the user is supported; when the upper supporting position and the lower supporting position of the supporting plate need to be adjusted, the worm is rotated to be meshed with the worm gear, the worm gear can drive the angles of the threaded rod and the adjusting plate to change, the supporting position on the supporting plate is made to change, and therefore the supporting position of the waist supporting structure on the office chair can be conveniently adjusted through the operation; and different use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to an adjustable waist supporting structure and an office chair. Background Art

[0002] Office chairs refer to various chairs equipped for the convenience of work in daily work and social activities. Office chairs generally have lumbar support and back support, which can disperse the pressure on the back muscles, prevent scoliosis, and reduce the risk of spinal diseases.

[0003] An office chair is a commonly used item at work, and generally has a lumbar support component to disperse the pressure on the lumbar muscles. When adjusting the lumbar support structure of an existing office chair, the lumbar support plate is generally pushed to slide in the slide rails on both sides. After the position adjustment is completed, the bolts on the support plate are rotated to enter the limit grooves in the slide rails to fix the support plate. This adjustment method is relatively cumbersome, and the adjustment position is relatively fixed. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable lumbar support structure and an office chair, so as to solve the problem that the existing office chair is not convenient for adjusting the lumbar support structure as mentioned in the background art.

[0005] To achieve the above object, the utility model provides the following technical solution: an adjustable lumbar support structure, comprising: a seat body and a worm gear, a support plate is fixed to one side of the seat body,

[0006] One side of the seat body is fixedly connected with a support frame.

[0007] Preferably, a fixing block is fixedly connected to one side of the support frame, a worm is movably connected to the interior of the fixing block via a bearing, and a worm wheel is meshingly connected to the outer side of the worm.

[0008] Preferably, a transmission rod is fixedly connected inside the worm wheel, one end of the transmission rod is fixedly connected to a threaded block, and the threaded rod is threadedly connected inside the threaded block.

[0009] Preferably, one end of the threaded rod is movably connected to an adjustment plate via a bearing, the adjustment plate has an arc shape, and one side of the threaded block is movably connected to the support frame via a rotating shaft.

[0010] An office chair, wherein a seat plate is fixedly connected to the bottom of a seat body, a bracket is fixedly connected to the bottom of the seat board, and a storage box is fixedly connected to one side of the bottom of the seat body.

[0011] Preferably, a slide groove for sliding the push rod is provided inside the storage box, a connecting plate is fixedly connected to one side of the push rod, the other side of the push rod is rollingly connected to a door panel via a roller, the bottom of the door panel is movably connected to the storage box via a rotating shaft, and connecting cloth is fixedly connected to both sides of the door panel.

[0012] Preferably, one side of the connecting cloth is fixedly connected to the inner wall of the storage box, and a tension spring is fixedly connected to the top of the door panel, and one end of the tension spring is fixedly connected to the storage box.

[0013] Compared with the prior art, the beneficial effects of the adjustable lumbar support structure and the office chair are as follows: by rotating the threaded rod and the threaded block for threaded transmission, the threaded rod will push the adjustment plate to move when it moves, thereby deforming the support plate made of plastic material and getting closer to the user's waist to support the user's waist; by squeezing the connecting plate with the heel, the connecting plate will drive the push rod to push the door panel to rotate and unfold when it moves; when the door panel rotates, the tension spring will be pulled to extend, and at the same time, the connecting cloth on both sides will be unfolded to prevent the items in the storage box from falling after the door panel is opened, and the items can be taken and placed at this time.

[0014] 1. An office chair is an item commonly used in work, and generally has a lumbar support component to disperse the pressure on the lumbar muscles. When adjusting the support position of the support plate, the threaded rod and the threaded block are rotated for threaded transmission. When the threaded rod moves, it pushes the adjustment plate to move, thereby deforming the plastic support plate and bringing it closer to the user's waist to support the user's waist. When it is necessary to adjust the upper and lower support positions of the support plate, the worm is rotated to engage with the worm gear, and the worm gear drives the angle of the threaded rod and the adjustment plate to change, thereby changing the support position on the support plate. In this way, the above operation can facilitate the adjustment of the support position of the lumbar support structure on the office chair to meet different usage requirements.

[0015] 2. An office chair is an item commonly used in work, and is generally equipped with a lumbar support component to disperse the pressure on the lumbar muscles. When using the office chair, in order to meet the user's storage needs, the user squeezes the connecting plate with the heel. When the connecting plate moves, it will drive the push rod to push the door panel to rotate and unfold. When the door panel rotates, it will pull the tension spring to stretch, and at the same time, the connecting cloth on both sides will unfold to prevent the items in the storage box from falling after the door panel is opened. At this time, the items can be put into the storage box, or the items in the storage box can be taken out. Through the above operations, the items can be easily stored in the office chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a rear view schematic diagram of the utility model;

[0017] Figure 2 It is a right side cross-sectional schematic diagram of the utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the seat body of the utility model;

[0019] Figure 4 This is a right side cross-sectional schematic diagram of the support plate of the utility model;

[0020] Figure 5 It is an enlarged schematic diagram of A of the utility model;

[0021] Figure 6 It is a top view cross-sectional schematic diagram of the storage box of the utility model.

[0022] In the figure: 1. seat body; 2. support plate; 3. seat plate; 4. bracket; 5. support frame; 6. fixing block; 7. worm; 8. worm wheel; 9. transmission rod; 10. threaded block; 11. threaded rod; 12. adjustment plate; 13. storage box; 14. push rod; 15. connecting plate; 16. door panel; 17. connecting cloth; 18. tension spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: an adjustable lumbar support structure, comprising: a seat body 1 and a worm gear 8, a support plate 2 is fixed to one side of the seat body 1,

[0025] A support frame 5 is fixedly connected to one side of the seat body 1; a fixed block 6 is fixedly connected to one side of the support frame 5, a worm 7 is movably connected to the interior of the fixed block 6 through a bearing, and a worm wheel 8 is meshingly connected to the outer side of the worm 7; a transmission rod 9 is fixedly connected to the interior of the worm wheel 8, a threaded block 10 is fixedly connected to one end of the transmission rod 9, and a threaded rod 11 is threadedly connected to the interior of the threaded block 10; an adjustment plate 12 is movably connected to one end of the threaded rod 11 through a bearing, and the shape of the adjustment plate 12 is arc-shaped, one side of the threaded block 10 is movably connected to the support frame 5 through a rotating shaft, the worm 7 and the worm wheel 8 constitute a meshing transmission structure, and the threaded block 10 and the threaded rod 11 constitute a threaded transmission structure.

[0026] In specific implementation, the office chair is an item commonly used in work, and generally has a lumbar support component to disperse the pressure of the lumbar muscles. When adjusting the support position of the support plate 2, by rotating the threaded rod 11, the threaded rod 11 will be threadedly transmitted with the threaded block 10, so that the threaded rod 11 is moved, and when the threaded rod 11 moves, it will push the adjustment plate 12 to move, so that the plastic support plate 2 is deformed and closer to the user's waist, supporting the user's waist. When it is necessary to adjust the upper and lower support positions of the support plate 2, by rotating the worm 7 and the worm wheel 8 to engage, the worm wheel 8 will drive the threaded block 10 to rotate through the transmission rod 9 when rotating, and the threaded block 10 will drive the angle of the threaded rod 11 and the adjustment plate 12 to change, so that the support position on the support plate 2 changes. In this way, through the above operation, the support position of the lumbar support structure on the office chair can be easily adjusted to meet different usage requirements.

[0027] See also Figure 1 , Figure 2 and Figure 6 , an office chair, a seat body 1 is fixedly connected to a seat plate 3 at the bottom, a bracket 4 is fixedly connected to the bottom of the seat body 1, a storage box 13 is fixedly connected to one side of the bottom of the seat body 1; a slide groove for a push rod 14 to slide is provided inside the storage box 13, a connecting plate 15 is fixedly connected to one side of the push rod 14, a door panel 16 is connected to the other side of the push rod 14 by a roller, the bottom of the door panel 16 is movably connected to the storage box 13 through a rotating shaft, and connecting cloth 17 is fixedly connected to both sides of the door panel 16; one side of the connecting cloth 17 is fixedly connected to the inner wall of the storage box 13, a tension spring 18 is fixedly connected to the top of the door panel 16, one end of the tension spring 18 is fixedly connected to the storage box 13, the door panel 16 forms a rotating structure with the storage box 13 through the rotating shaft, and the push rod 14 forms a sliding structure with the storage box 13.

[0028] In specific implementation, the office chair is an item commonly used in work, and generally has a lumbar support component to disperse the pressure on the lumbar muscles. When using the office chair, in order to meet the storage needs of the user, the connecting plate 15 is squeezed by the heel. When the connecting plate 15 moves, it will drive the push rod 14 to push the door panel 16 to rotate and unfold. When the door panel 16 rotates, it will pull the tension spring 18 to stretch, and at the same time, the connecting cloth 17 on both sides will unfold to prevent the items in the storage box 13 from falling after the door panel 16 is opened. At this time, the items can be put into the storage box 13, or the items in the storage box 13 can be taken out. After taking and placing, the squeezing of the connecting plate 15 can be stopped. At this time, the tension spring 18 will be reset, and the door panel 16 will be pulled to rotate, and the storage box 13 will be closed to prevent dust from entering the storage box 13. At the same time, the occupied area of ​​the storage box 13 can also be reduced. In this way, the above operation can facilitate the storage of items in the office chair.

[0029] To sum up: when using the adjustable lumbar support structure and office chair, first the user can sit on the seat 3, the support plate 2 on the seat body 1 can support the user's waist, and the bracket 4 can support the seat body 1 and the seat 3. This is the characteristic of the adjustable lumbar support structure and office chair. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable lumbar support structure, comprising: The seat body (1) and the worm gear (8) are characterized in that a support plate (2) is fixed to one side of the seat body (1). One side of the seat body (1) is fixedly connected to a support frame (5), one side of the support frame (5) is fixedly connected to a fixed block (6), the interior of the fixed block (6) is movably connected to a worm (7) via a bearing, the outer side of the worm (7) is meshingly connected to a worm wheel (8), the interior of the worm wheel (8) is fixedly connected to a transmission rod (9), one end of the transmission rod (9) is fixedly connected to a threaded block (10), the interior of the threaded block (10) is threadedly connected to a threaded rod (11), one end of the threaded rod (11) is movably connected to an adjustment plate (12) via a bearing, the adjustment plate (12) has an arc shape, and one side of the threaded block (10) is movably connected to the support frame (5) via a rotating shaft.

2. An office chair, using the lumbar support structure according to claim 1, characterized in that: The bottom of the seat body (1) is fixedly connected to a seat plate (3), the bottom of the seat plate (3) is fixedly connected to a bracket (4), and one side of the bottom of the seat body (1) is fixedly connected to a storage box (13).

3. An office chair according to claim 2, characterized in that: The storage box (13) is provided with a slide groove for the push rod (14) to slide, one side of the push rod (14) is fixedly connected to a connecting plate (15), the other side of the push rod (14) is rollingly connected to a door panel (16) via a roller, the bottom of the door panel (16) is movably connected to the storage box (13) via a rotating shaft, and both sides of the door panel (16) are fixedly connected to connecting cloths (17).

4. An office chair according to claim 3, characterized in that: One side of the connecting cloth (17) is fixedly connected to the inner wall of the storage box (13), and the top of the door panel (16) is fixedly connected to a tension spring (18), and one end of the tension spring (18) is fixedly connected to the storage box (13).

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