CN221153570U - Waist rest capable of adjusting sitting depth and angle - Google Patents
Waist rest capable of adjusting sitting depth and angle Download PDFInfo
- Publication number
- CN221153570U CN221153570U CN202322743401.3U CN202322743401U CN221153570U CN 221153570 U CN221153570 U CN 221153570U CN 202322743401 U CN202322743401 U CN 202322743401U CN 221153570 U CN221153570 U CN 221153570U
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- chair back
- base
- lumbar support
- waist
- connecting rod
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- 230000000694 effects Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model provides a lumbar support capable of adjusting sitting depth and angle, which comprises a lumbar support, an adjusting component and a chair back; the waist rest is fixed on the chair back through the adjusting component; the adjusting component comprises a chair back base, a lumbar support base and a cross connecting rod. The chair back base is movably connected with the waist base through a cross connecting rod. According to the utility model, the waist rest and the chair back are provided with the adjusting component, the waist angle and the depth can be synchronously adjusted, each gear has different effects, the waist rest angle and the waist height point position are changed along with the change of the gears, so that the waist rest is more attached to the waist of a user, and the two-side double-gear mechanism is adopted, so that the waist rest is prevented from being unevenly stressed left and right to generate shaking, larger force can be borne, more obese users can be satisfied, and the quality problem of products after sale is also avoided.
Description
Technical Field
The utility model relates to the technical field of adjustable seats, in particular to a waist rest with adjustable sitting depth and angle
Background
With the development of the current society, more and more people are in a sitting state for a long time, both in work and living. However, seats on the market generally lack reasonable support and adjustability for the waist of the user. Thus, an ergonomic chair, such as an office chair, has evolved. The office chair products are continuously developed, and office chairs with more functions are favored. Although the office chairs on the market have five-flower eight doors, the degree of freedom of adjusting the lumbar support device part with great influence on sitting feeling is limited, which can lead a part of people to be unable to adjust to the most comfortable state when using the product, and certain lumbar injury can be caused after long-term use, and the serious people can also cause intervertebral disc protrusion, displacement and the like of human vertebration. Based on the sub-health, many manufacturers research the functional lumbar support, but the actual effect is poor, the operation is complicated, and the cost is high. Aiming at the problems, more researches are needed, the human-computer data of people with different heights are analyzed from the depth of the seat and the height of the lumbar support, the scene analysis of the user is used for researching, and the reading of the human-computer engineering data is completed from the scientific angle.
Disclosure of utility model
The utility model aims to provide the waist rest which is convenient to adjust and high in safety and can improve the fitting degree of the waist rest of the seat and a human body.
In order to achieve the above purpose, the present utility model provides a lumbar support with adjustable sitting depth and angle, comprising a lumbar support, an adjusting component and a chair back;
the waist rest is fixed on the chair back through the adjusting component;
The adjusting component comprises a chair back base, a lumbar support base and a cross connecting rod. The chair back base is movably connected with the waist support base through the cross connecting rod; the interval between the chair back base and the waist base is adjusted by adjusting the included angle of the cross connecting rod.
Furthermore, the cross connecting rod is two connecting rods which are connected in a crossed way, and the crossing points of the two connecting rods are connected through a pin shaft.
Furthermore, the number of the cross connecting rods is two, and the two groups of the cross connecting rods are arranged between the chair back base and the waist base in a front-back symmetrical mode.
Further, the side surfaces of the two opposite sides of the chair back base and the waist base are respectively provided with a gear clamping groove;
One end of one connecting rod is movably connected with the chair back base through a pin shaft, and the other end of the connecting rod is movably connected with the clamping groove of the waist base through a positioning pin; one end of the other connecting rod is movably connected with the lumbar support base through a pin shaft, and the other end of the connecting rod is movably connected with the clamping groove of the chair back base through a positioning pin.
Further, the gear clamping groove is provided with a plurality of tooth grooves which are matched and clamped with the positioning pins along the length direction of the gas according to the gear quantity;
A return-to-zero control rod is arranged on the chair back base or the waist support base; the surface of the chair back base or the lumbar support base is provided with an inclined groove which is in sliding connection with the zeroing control rod, and the zeroing control rod is displaced to the tooth groove position along the direction of the inclined groove and along the surface of the base.
Further, the end part of the zeroing control rod is connected with a control handle.
Compared with the prior art, the utility model has the advantages that:
1. According to the utility model, the waist rest and the chair back are additionally provided with the adjusting component, so that the waist angle and the depth can be synchronously adjusted, each gear has different effects, and the waist rest angle and the waist height point position are changed along with the change of the gear, so that the waist rest is more attached to the waist of a user.
2. The utility model adopts the double-gear mechanism at two sides, thus avoiding the shaking caused by uneven stress on the waist rest left and right, bearing larger force, meeting more obese users and avoiding the quality problem of products after sale.
Drawings
Fig. 1 is a schematic diagram of the overall structure in an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of an adjusting component according to an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of an adjusting component in a zeroing state according to an embodiment of the present utility model.
Fig. 4 is a schematic structural view of the adjusting assembly in a second gear state according to an embodiment of the present utility model.
Fig. 5 is a schematic structural view of an adjusting assembly in a highest gear state according to an embodiment of the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be further described below.
As shown in fig. 1, the present utility model provides a lumbar support with adjustable sitting depth and angle, comprising a lumbar support 1, an adjusting component 2 and a chair back 3.
Specifically, the lumbar support 1 is fixed to the chair back 3 through the adjusting assembly 2. The adjusting assembly comprises a chair back base 4, a cross connecting rod 15 and a lumbar support base 9. The chair back base 4 is movably connected with the waist back base 9 through a cross connecting rod 15; the interval between the chair back base 4 and the lumbar support base 9 is adjusted by adjusting the included angle of the cross connecting rod 15. The cross connecting rod 15 is two connecting rods which are connected in a crossed way, and the crossing points of the two connecting rods are connected through a pin roll 16.
In the embodiment, the side surfaces of the two opposite sides of the chair back base 4 and the waist base 9 are respectively provided with a gear clamping groove; a first gear clamping groove 5 and a second gear clamping groove 10 respectively;
One end of one of the cross connecting rods 15 is movably connected with the chair back base 4 through a pin shaft 14, and the other end of the one connecting rod is movably connected with the second gear clamping groove 10 of the lumbar support base 9 through a positioning pin 6; one end of the other connecting rod is movably connected with the lumbar support base 9 through a pin shaft 12, and the other end of the other connecting rod is movably connected with the first gear clamping groove 5 of the chair back base 4 through a positioning pin 7.
A zeroing control rod 11 is arranged on the lumbar support base 9; the end part of the zeroing control rod is connected with a control handle 13.
In this embodiment, as shown in fig. 3, in the zero-shift state of the adjusting assembly, that is, in the initial state, as shown in fig. 4, the lumbar support 1 is pulled forward to drive the first positioning pin 6 and the second positioning pin 7 on the cross connecting rod 15 to be respectively clamped in the second-shift positions of the first-shift clamping groove 5 and the second-shift clamping groove 10. As shown in fig. 5, the operation is the same as described above in order to achieve the highest gear state.
When the user wants to return to zero, the user lifts the handle upwards along the sliding clamping groove 8 of the control rod to drive the control handle 13, so that the first positioning pin 6 and the second positioning pin 7 cannot be clamped into the first gear clamping groove 5 and the second gear clamping groove 10, and the lumbar support is pushed back to the zero gear position.
The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the utility model without departing from the scope of the technical solution of the utility model, and the technical solution of the utility model is not departing from the scope of the utility model.
Claims (6)
1. The waist rest capable of adjusting sitting depth and angle is characterized by comprising a waist rest, an adjusting component and a chair back;
the waist rest is fixed on the chair back through the adjusting component;
The adjusting component comprises a chair back base, a lumbar support base and a cross connecting rod, wherein the chair back base is movably connected with the lumbar support base through the cross connecting rod; the interval between the chair back base and the waist base is adjusted by adjusting the included angle of the cross connecting rod.
2. The lumbar support with adjustable sitting depth and angle according to claim 1, wherein the cross connecting rod is two connecting rods which are connected in a crossed manner, and the crossing points of the two connecting rods are connected through a pin shaft.
3. The lumbar support with adjustable sitting depth and angle according to claim 2, wherein the number of the cross connecting rods is two, and the two cross connecting rods are symmetrically arranged between the chair back base and the lumbar support base.
4. The lumbar support with adjustable sitting depth and angle according to claim 2, wherein the side surfaces of the two opposite sides of the chair back base and the lumbar support base are provided with gear clamping grooves;
One end of one connecting rod is movably connected with the chair back base through a pin shaft, and the other end of the connecting rod is movably connected with the clamping groove of the waist base through a positioning pin; one end of the other connecting rod is movably connected with the lumbar support base through a pin shaft, and the other end of the connecting rod is movably connected with the clamping groove of the chair back base through a positioning pin.
5. The lumbar support with adjustable sitting depth and angle according to claim 4, wherein a plurality of tooth grooves which are matched and clamped with the positioning pins are arranged in the longitudinal direction of the vehicle according to the gear number of the gear clamping grooves;
A return-to-zero control rod is arranged on the chair back base or the waist support base; the surface of the chair back base or the lumbar support base is provided with an inclined groove which is in sliding connection with the zeroing control rod, and the zeroing control rod is displaced to the tooth groove position along the direction of the inclined groove and along the surface of the base.
6. The lumbar support of claim 5 wherein the zero control lever has an end connected to a control handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322743401.3U CN221153570U (en) | 2023-10-12 | 2023-10-12 | Waist rest capable of adjusting sitting depth and angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322743401.3U CN221153570U (en) | 2023-10-12 | 2023-10-12 | Waist rest capable of adjusting sitting depth and angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221153570U true CN221153570U (en) | 2024-06-18 |
Family
ID=91538649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322743401.3U Active CN221153570U (en) | 2023-10-12 | 2023-10-12 | Waist rest capable of adjusting sitting depth and angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221153570U (en) |
-
2023
- 2023-10-12 CN CN202322743401.3U patent/CN221153570U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |