CN219206349U - Adjustable seat waist rest - Google Patents
Adjustable seat waist rest Download PDFInfo
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- CN219206349U CN219206349U CN202320714315.7U CN202320714315U CN219206349U CN 219206349 U CN219206349 U CN 219206349U CN 202320714315 U CN202320714315 U CN 202320714315U CN 219206349 U CN219206349 U CN 219206349U
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- lumbar support
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- seat
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Abstract
The utility model discloses an adjustable seat lumbar support, which comprises a back plate bracket and a lumbar support assembly arranged on the back plate bracket, wherein the lumbar support assembly comprises a lumbar support seat and a lumbar support main body arranged on the lumbar support seat; the surface of the lumbar support positioning plate seat is provided with two side positioning guide grooves, a rotating knob is movably arranged between the two side positioning guide grooves, and the lumbar support is provided with a threaded shaft sleeve which is movably sleeved and matched with the fixed shaft rod; the rotating knob is provided with internal threads and external threads of the threaded shaft sleeve for meshing, and the threaded shaft sleeve can be driven to move back and forth relative to the fixed shaft rod by rotating the rotating knob, so that the back and forth position adjustment of the lumbar support assembly is realized. The utility model has convenient operation and adjustment and good comfort.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to a seat lumbar support.
Background
At present, the chair back and the chair seat of many chairs on the market are all of fixed connection structures, and in the leaning and leaning process of a user, the chair back, particularly the waist, is separated from the waist of a human body, and a gap is directly formed, so that the chair loses the support to the waist of the human body, commonly called as 'waist running', the spine of the human body cannot be effectively supported, and a plurality of health problems are easily caused by long-time sitting. For example, chinese patent grant publication No. CN217185374U discloses an adjustable seat waist rest, which is characterized by comprising a back plate, a back rest support seat movably arranged on the back plate, a back rest support frame arranged on the back rest support seat and a headrest support, wherein the back rest support frame comprises an upper swing support plate frame and a lower swing support plate frame, and the upper swing support plate frame and the lower swing support plate frame are respectively hinged with the back rest support seat; an upper slot is arranged in the backrest support seat, and the headrest support is provided with a headrest support plate frame corresponding to the upper slot. The back support frame that adopts in this patent structure includes upper and lower swing support grillage, can carry out effectual support to human waist, but upper and lower swing support grillage is direct articulated with back support frame seat, but not adjustable, but the human waist lines of different statures are all different, so the waist laminating nature to the human body is not very high, needs design adjustable waist to lean on the structure in order to improve the travelling comfort of seat.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, provides an adjustable seat lumbar support, is convenient to operate and adjust, and can improve the fitting degree of a human body and the seat lumbar support.
The utility model adopts the following technical proposal to realize the aim: the adjustable seat lumbar support comprises a backboard support and a lumbar support assembly arranged on the backboard support, wherein the lumbar support assembly comprises a lumbar support seat and a lumbar support main body arranged on the lumbar support seat; the surface of the lumbar support positioning plate seat is provided with two side positioning guide grooves, and a rotating knob is movably arranged between the two side positioning guide grooves.
The waist support is provided with a threaded shaft sleeve which is movably sleeved and matched with the fixed shaft lever; the rotating knob is provided with internal threads and external threads of the threaded shaft sleeve for meshing, and the threaded shaft sleeve can be driven to move back and forth relative to the fixed shaft rod by rotating the rotating knob, so that the back and forth position adjustment of the lumbar support assembly is realized.
As a further explanation of the scheme, the lumbar support extends to two sides, and is provided with an elastic support piece I and an elastic support piece II respectively, the lumbar support main body comprises a left lumbar support frame and a right lumbar support frame, the left lumbar support frame is fixed on the lumbar support through the elastic support piece I, and the right lumbar support frame is fixed on the lumbar support through the elastic support piece II.
Further, the first elastic supporting piece and the second elastic supporting piece are spring columns, and the left waist supporting frame and the right waist supporting frame respectively adopt arc frames which warp upwards so as to improve mechanical properties.
Further, the middle part of the rotary knob is provided with a middle pipe sleeve corresponding to the threaded shaft sleeve, the outer edge of the end part of the middle pipe sleeve is provided with an annular flange, and two sides of the annular flange are respectively embedded into corresponding positioning guide grooves, so that the rotary knob can linearly slide along the positioning guide grooves.
Further, the backboard support is provided with a lifting guide groove corresponding to the sliding plate, the lifting guide groove is parallel to the positioning guide groove, and a rack and an elastic clamping block assembly which are movably clamped with each other are arranged between the side part of the sliding plate and the inner side of the lifting guide groove; when the sliding plate slides in the lifting guide groove, the lumbar support component can be driven to lift and adjust.
Further, the elastic clamping block assembly comprises an elastic clamping block, a positioning shaft rod and a spring, wherein the positioning shaft rod penetrates through two sides of the elastic clamping block, and the spring is connected to the outer side of the elastic clamping block; the bottom of the lifting guide groove is provided with a strip-shaped slotted hole which is arranged along the up-down direction, and the positioning shaft rod is in sliding connection with the strip-shaped slotted hole.
Further, the backboard support comprises a back frame and a backboard support frame, the lower part of the backboard support frame downwards extends to form a bottom plate, and the lifting guide groove is arranged on the bottom plate.
The beneficial effects achieved by adopting the technical proposal of the utility model are that.
1. The utility model adopts a lumbar support positioning plate seat and a sliding plate with a fixed shaft lever which are arranged on a backboard bracket, and the sliding plate is in sliding contact with the back surface of the lumbar support positioning plate seat; the surface of the lumbar support positioning plate seat is provided with two side positioning guide grooves, a rotating knob is movably arranged between the two side positioning guide grooves, and the lumbar support is provided with a threaded shaft sleeve which is movably sleeved and matched with the fixed shaft rod; the rotary knob is provided with internal threads and external threads of the threaded shaft sleeve to be meshed, and the threaded shaft sleeve can be driven to move back and forth relative to the fixed shaft rod by rotating the rotary knob, so that the back and forth position adjustment of the lumbar support assembly is realized, and the lumbar support assembly can be attached to the waist of a human body.
2. The waist support extends to both sides, sets up elastic support spare one and elastic support spare two respectively, and left waist props the frame and passes through elastic support spare one to be fixed on the waist support, and right waist props the frame and passes through elastic support spare two to be fixed on the waist support, because elastic support spare itself can be forced action to a plurality of angles crooked, utilizes good elastic reaction force to make the waist prop the subassembly can laminate human waist completely, provides good stable support for user's waist, uses comfortablely.
3. The backboard support is provided with a lifting guide groove corresponding to the sliding plate, the lifting guide groove is parallel to the positioning guide groove, and a rack and an elastic clamping block assembly which are movably clamped with each other are arranged between the side part of the sliding plate and the inner side of the lifting guide groove; when the sliding plate slides in the lifting guide groove, the lumbar support assembly can be driven to lift and adjust, so that the lumbar support assembly can just face the waist position of a human body, and the operation and the adjustment are convenient.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the present utility model.
Fig. 3 is a schematic structural view of the present utility model.
Fig. 4 is a schematic view of the lumbar support stand structure.
FIG. 5 is a schematic view of a sliding plate structure.
FIG. 6 is a schematic diagram of the structure of the elastic clamping block assembly.
Reference numerals illustrate: 1. the back plate support comprises a back plate support 1-1, a back frame 1-2, a back plate frame 1-3, a bottom plate 1-4, a lumbar support positioning plate seat 1-41, a positioning guide groove 1-5, a sliding plate block 1-6, a fixing shaft rod 1-7, an elastic clamping block assembly 1-71, an elastic clamping block 1-72, a positioning shaft rod 1-73, a spring 1-8, a rack 1-9, a rotating knob 1-91, an internal thread 1-92, a middle pipe sleeve 1-10, a thread shaft sleeve 2, a lumbar support assembly 2-1, a lumbar support seat 2-2, a lumbar support main body 2-21, a left lumbar support frame 2-22, a right lumbar support frame 2-3, an elastic support first 2-4 and an elastic support second.
Detailed Description
In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the utility model, "at least" means one or more, unless clearly specifically defined otherwise.
In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The following description of the specific embodiments of the present utility model is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1-6, the utility model is an adjustable seat lumbar support, a back plate bracket 1 and a lumbar support assembly 2 arranged on the back plate bracket, wherein the lumbar support assembly 2 comprises a lumbar support seat 2-1 and a lumbar support main body 2-2 arranged on the lumbar support seat 2-1, the back plate bracket 1 comprises a back frame 1-1 and a back plate frame 1-2, the lower part of the back plate frame extends downwards to form a bottom plate 1-3, a lumbar support positioning plate seat 1-4, a sliding plate block 1-5 and a fixed shaft lever 1-6 are arranged on the bottom plate, the fixed shaft lever is vertically fixed on the sliding plate block, and the sliding plate block 1-5 is in sliding contact with the back surface of the lumbar support positioning plate seat 1-4; the bottom plate 1-3 is provided with a lifting guide groove corresponding to the sliding plate, the lifting guide groove is parallel to the positioning guide groove, and an elastic clamping block assembly 1-7 and a rack 1-8 which are movably clamped with each other are arranged between the side part of the sliding plate and the inner side of the lifting guide groove. The elastic clamping block assembly comprises elastic clamping blocks 1-71, positioning shaft rods 1-72 and springs 1-73, wherein the positioning shaft rods penetrate through two sides of the elastic clamping blocks, the springs are connected to the outer sides of the elastic clamping blocks, the elastic clamping blocks are provided with clamping hooks which are just in time in clamping fit with teeth of the racks, and the sliding plate can be guaranteed to be at a first-stage and a first-stage changing position along the lifting guide groove through interaction force of the two clamping hooks; the bottom of the lifting guide groove is provided with a strip-shaped groove hole arranged along the up-down direction, the positioning shaft rod is in sliding connection with the strip-shaped groove hole, and the sliding plate can drive the lumbar support assembly to lift and adjust when the lifting guide groove slides.
The surface of the lumbar support positioning plate seat is provided with two side positioning guide grooves 1-41, a rotating knob 1-9 is movably arranged between the two side positioning guide grooves, and the lumbar support is provided with a threaded shaft sleeve 1-10 which is movably sleeved and matched with the fixed shaft rod; the cross section of the fixed shaft lever is polygonal, so that the threaded shaft sleeve is sleeved on the fixed shaft lever and cannot rotate relative to the fixed shaft lever. The rotating knob is provided with internal threads 1-91 which are meshed with external threads of the threaded shaft sleeve 1-10, and the threaded shaft sleeve can be driven to move forwards and backwards relative to the fixed shaft rod by rotating the rotating knob, so that the front and back position adjustment of the lumbar support assembly is realized. The middle part of the rotary knob is provided with a middle pipe sleeve 1-92 corresponding to the threaded shaft sleeve, the outer edge of the end part of the middle pipe sleeve is provided with an annular flange, and two sides of the annular flange are respectively embedded into corresponding positioning guide grooves, so that the rotary knob can slide along the positioning guide grooves in a straight line.
The lumbar support seat 2-1 extends to two sides, and is respectively provided with an elastic support piece I2-3 and an elastic support piece II 2-4, and the lumbar support main body comprises a left lumbar support frame 2-21 and a right lumbar support frame 2-22, wherein the left lumbar support frame is fixed on the lumbar support seat through the elastic support piece I, and the right lumbar support frame is fixed on the lumbar support seat through the elastic support piece II. The first elastic supporting piece and the second elastic supporting piece are spring columns, and the left waist supporting frame and the right waist supporting frame respectively adopt arc-shaped frames which warp upwards so as to improve mechanical properties. It is noted that the spring post may be replaced by an elastic silicone post to provide a cushioning force for the lumbar support assembly.
Compared with the prior art, the front-back position adjustment of the lumbar support assembly is realized by rotating the rotary knob to drive the threaded shaft sleeve to move back and forth relative to the fixed shaft lever, so that the lumbar support assembly can be attached to the waist of a human body; the backboard support is provided with a lifting guide groove corresponding to the sliding plate, the lifting guide groove is parallel to the positioning guide groove, and a rack and an elastic clamping block assembly which are movably clamped with each other are arranged between the side part of the sliding plate and the inner side of the lifting guide groove; when the sliding plate slides in the lifting guide groove, the lumbar support component can be driven to lift and adjust, so that the lumbar support component can just face the lumbar position of a human body, and the operation and the adjustment are convenient; the elastic supporting piece is arranged on the lumbar support seat, and can bend towards a plurality of angles due to the stress action of the elastic supporting piece, so that the lumbar support body can completely fit the waist of a human body by utilizing good elastic reaction force, and good and stable support is provided for the waist of a user.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.
Claims (7)
1. The adjustable seat lumbar support comprises a backboard support and a lumbar support assembly arranged on the backboard support, wherein the lumbar support assembly comprises a lumbar support seat and a lumbar support main body arranged on the lumbar support seat; the surface of the lumbar support positioning plate seat is provided with two side positioning guide grooves, a rotating knob is movably arranged between the two side positioning guide grooves,
the waist support is provided with a threaded shaft sleeve which is movably sleeved and matched with the fixed shaft lever; the rotating knob is provided with internal threads engaged with external threads of the threaded shaft sleeve.
2. An adjustable seat lumbar support according to claim 1, wherein the lumbar support extends to both sides and is provided with a first elastic support and a second elastic support, respectively, the lumbar support body comprises a left lumbar support frame and a right lumbar support frame, the left lumbar support frame is fixed on the lumbar support through the first elastic support, and the right lumbar support frame is fixed on the lumbar support through the second elastic support.
3. The adjustable seat lumbar support according to claim 2, wherein the first and second elastic support members are spring posts, and the left and right lumbar support frames are respectively curved frames that are curved upward to improve mechanical properties.
4. The adjustable seat lumbar support according to claim 1, wherein a middle pipe sleeve corresponding to the threaded shaft sleeve is arranged in the middle of the rotating knob, an annular flange is arranged at the outer edge of the end part of the middle pipe sleeve, and two sides of the annular flange are respectively embedded into the corresponding positioning guide grooves.
5. The adjustable seat lumbar according to claim 1, wherein the back plate bracket is provided with a lifting guide groove corresponding to the sliding plate block, the lifting guide groove is parallel to the positioning guide groove, and a rack and elastic clamping block assembly which are movably clamped with each other is arranged between the side part of the sliding plate block and the inner side of the lifting guide groove.
6. The adjustable seat lumbar of claim 5 wherein the resilient latch assembly includes a resilient latch, a locating shaft and a spring, the locating shaft passing through both sides of the resilient latch, the spring being connected to the outside of the resilient latch; the bottom of the lifting guide groove is provided with a strip-shaped slotted hole which is arranged along the up-down direction, and the positioning shaft rod is in sliding connection with the strip-shaped slotted hole.
7. An adjustable seat lumbar according to claim 5 wherein the back support comprises a back frame and a back frame, the lower portion of the back frame extending downwardly to form a floor, and the lifting channel is provided in the floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320714315.7U CN219206349U (en) | 2023-04-04 | 2023-04-04 | Adjustable seat waist rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320714315.7U CN219206349U (en) | 2023-04-04 | 2023-04-04 | Adjustable seat waist rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219206349U true CN219206349U (en) | 2023-06-20 |
Family
ID=86740908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320714315.7U Active CN219206349U (en) | 2023-04-04 | 2023-04-04 | Adjustable seat waist rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219206349U (en) |
-
2023
- 2023-04-04 CN CN202320714315.7U patent/CN219206349U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |