CN220308746U - Chair with multifunctional armrests and waist rest - Google Patents

Abstract

The utility model discloses a seat with a multifunctional armrest and a lumbar support, which comprises a seat, a backrest and armrests, wherein armrests are arranged on two sides of the seat, a backrest is arranged on the rear side of the seat, the bottom of the seat is connected with a supporting piece, the lumbar support is rotatably arranged on the inner sides of the seat and the backrest, the lumbar support comprises a rotating arm assembly and a lumbar support assembly, one end of the rotating arm assembly is hinged with the seat, the other end of the rotating arm assembly is connected with the lumbar support assembly, the armrests comprise a supporting seat, a moving plate and an armrest surface, the moving plate is detachably arranged above the supporting seat, the armrest surface is fixedly arranged above the moving plate, a first chute and a second chute are transversely hollowed out on the moving plate, and a first bolt and a second bolt are arranged on the supporting seat, wherein the first bolt and the second bolt are respectively embedded in the first chute and the second chute so as to realize left-right movement and small-amplitude rotation of the moving plate relative to the supporting seat.

Description

Chair with multifunctional armrests and waist rest

Technical Field

The utility model relates to the technical field of armrests and lumbar supports of seats, in particular to a seat with a multifunctional armrests and lumbar supports.

Background

In the individual application scene, if the hands of different persons are in rest on the armrest surface, the positions of the hands are different, the fat person needs to move outwards, the thin person needs to move inwards, but the armrest surface is large in total, if one armrest can be designed, the armrest surface can move left and right and slightly rotate and the fine adjustment gesture can solve the technical problem, secondly, the lumbar rest is mainly integrated on the backrest, and the buffer device is arranged on the backrest to enable the lumbar rest to support the lumbar part of an occupant, but the lumbar rest is integrated on the backrest, namely, the lumbar rest can be adjusted along with the angle adjustment of the backrest, namely, the requirement that part of the occupant still needs to keep the posture at the upper end of the seat when the lumbar rest is at right angles or lying angles cannot be met, namely, the technical problem that the lumbar rest is separated from the backrest cannot be solved is solved.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a seat with a multifunctional armrest and a lumbar support, which solves the technical problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a take multi-functional handrail and seat that waist leaned on, includes seat support, back, handrail, the handrail is installed to the both sides of seat support, and the back is installed to the rear side of seat support, the bottom and the support piece of seat support are connected, the inboard rotatable waist of seat support and back is installed and is leaned on, the waist leans on including rocking arm subassembly and waist and leans on the subassembly, the one end and the seat support of rocking arm subassembly are articulated each other, the other end and waist lean on subassembly interconnect, the handrail includes supporting seat, movable plate and handrail face, the movable plate is detachably installed in the top of supporting seat, handrail face fixed mounting is in the top of movable plate, horizontal fretwork is equipped with first spout and second spout on the movable plate, be equipped with first bolt and second bolt on the supporting seat, wherein first bolt and second bolt inlay respectively in first spout and second spout to realize that the movable plate moves about and the rotation of a small scale for the supporting seat.

The movable plate is further improved in that a first sliding seat and a second sliding seat are arranged on the movable plate, wherein the first sliding groove is positioned on the first sliding seat, and the second sliding groove is positioned on the second sliding seat.

The improvement is that the inner side of the first sliding seat is provided with a first inner sliding ring, wherein the end face of the first sliding seat and the end face of the first inner sliding ring form a step for limiting sliding of a nut of the bolt, the inner side of the second sliding seat is provided with a second inner sliding ring, and the end face of the second sliding seat and the end face of the second inner sliding ring form a step for limiting sliding of the nut of the bolt.

The further improvement lies in, still be equipped with the assembly board on the supporting seat, be equipped with the pilot hole on the assembly board, first bolt and second bolt all realize the assembly through first spout and the second spout of pilot hole and upper end.

The movable plate is characterized in that the assembly plate is provided with a limiting ring strip for the movable plate to realize small-amplitude rotation by means of the first sliding groove and the second sliding groove, and a limiting ring block is arranged at the position, corresponding to the limiting ring strip, on the movable plate.

The further improvement lies in, spacing circle strip includes inner circle strip and outer lane strip, and wherein the inner circle strip is circular and is located between two pilot holes, the outer lane strip is convex, is located the outside of two pilot holes, all is provided with a spacing circle piece on every spacing circle strip that corresponds.

The waist is leaned on the subassembly and is used for installing waist to lean on the subassembly, waist is leaned on the subassembly and is included rocking arm and waist to lean on the frame, the rocking arm is located the both sides of seat support, waist leans on the frame and is connected to the corner connected position inboard that spans in seat support and back through the rocking arm extension, wherein waist leans on the frame and is used for installing waist to lean on the subassembly, waist leans on the subassembly and is included waist to lean on the rest and lean on the frame, wherein leaning on the rest and the same shape setting of frame, waist leaning on the rest and the same shape setting of rest, the inboard of waist leaning on the rest is equipped with the inflation hole, the position that corresponds the inflation hole on the rest is equipped with the inflation post hole, the position that corresponds the inflation post hole on the waist leans on the frame is equipped with the inflation bolt, inflation bolt passes the inflation post hole and arrives the installation of inflation hole realization waist leaning on rest, leaning on the rest and waist leaning on the frame, the outside of seat support is equipped with the rolling seat, be equipped with the rotation groove on the torsional spring, be equipped with the rolling groove in the rolling groove, be equipped with the lock jack in the rolling groove, one torsion spring inserts in the lock jack, the position that corresponds the rolling groove on the rocking arm, on the rocking arm is equipped with the inflation hole, on the side.

The further improvement lies in, be located one side of rotation hole on the rocking arm and be equipped with the rotation stopper, be located one side of rotation groove on the rotation seat and be equipped with the rotation spacing groove, when the rocking arm rotated, rely on rotation stopper and rotation spacing groove to rotate the stroke spacing.

The further improvement lies in, be equipped with first chucking piece and second chucking piece on the locking closure, one side of rotation hole is equipped with first chucking groove and second chucking groove, respectively with first chucking piece and second chucking piece grafting locking, wherein the diameter of first chucking piece is less than the diameter of second chucking piece.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The utility model designs a new armrest structure and a waist rest mounting structure to solve the technical problems, firstly, in the armrest, the upper end of a supporting seat is provided with a moving plate, two parallel sliding grooves are arranged on the moving plate, the sliding grooves are provided with transverse widths, then two bolts penetrate through the two sliding grooves to be mutually fixed with a fixed seat, firstly, in the installation of the two sliding grooves and the bolts, the bolts are not locked with a fixed plate, but can slide in the sliding grooves, so that the left and right movement can be realized, and meanwhile, the two sliding grooves are clamped to slightly rotate the moving plate to adjust the gesture, so that the armrest is very practical and simple in structure.

(2) The lumbar support is not integrated on the backrest, but is rotatably arranged on two sides of the chair seat, and the lumbar support assembly (lumbar support pillow) can span between the backrest and the chair seat and is free from the backrest by adopting the torsion spring structure combination, so that the lumbar support assembly has better buffering experience than the traditional lumbar support assembly because the lumbar support assembly is supported by the torsion spring when sitting and lying normally, and the lumbar support assembly can rotate the backrest independently without rotating the lumbar support in individual sitting posture adjustment, so that the lumbar is fully supported.

Drawings

Fig. 1: is a schematic view of the overall structure of the seat (the supporting member is not shown);

fig. 2: an exploded view of the armrest structure in the seat of the utility model;

fig. 3: a second exploded view of the armrest structure in the chair of the utility model;

fig. 4: a structural schematic diagram of an assembly plate in the seat is provided;

fig. 5: an exploded view of a seat and lumbar support mounting structure in the seat of the utility model;

fig. 6: the second exploded view of the seat and lumbar support mounting structure in the seat of the utility model;

fig. 7: the seat and lumbar support mounting structure in the seat of the utility model is an exploded view III;

fig. 8: an enlarged view of the portion a of fig. 5 in accordance with the present utility model;

fig. 9: an enlarged view of section B of fig. 7 in accordance with the present utility model;

fig. 10: an enlarged view of section C of fig. 6 in accordance with the present utility model;

fig. 11: a schematic view of the moving plate of the armrest in the seat rotates for 10 degrees relative to the supporting seat;

fig. 12: schematic diagrams of three states of left and right movement of a moving plate of an armrest in the seat relative to a supporting seat;

in the figure: chair seat 1, backrest 2, armrests 3, lumbar support 5, swivel arm assembly 51, lumbar support assembly 52;

the support seat 31, the moving plate 32, the first sliding groove 311, the second sliding groove 312, the first bolt 321, the second bolt 322, the first sliding seat 313, the second sliding seat 314, the first inner slide ring 315, the second inner slide ring 316, the assembly plate 33, the assembly hole 331, the limit ring strip 332, the limit ring block 333, the inner ring strip 332a, the outer ring strip 332b and the handrail surface 34;

the swing arm 511, the lumbar support 512, the lumbar support 521, the headrest support 522, the expansion hole 521a, the expansion column hole 522a, the expansion bolt 512a, the rotation seat 11, the rotation groove 111, the lock insertion hole 111a, the torsion spring 13, the rotation hole 511a, the lock insertion hole 511b, the lock cover 12, the rotation stopper 511c, the rotation stopper groove 111b, the first clamping block 121, the second clamping block 122, the first clamping groove 511d, the second clamping groove 511e, and the hinge shaft hole 111e.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Referring to fig. 1 to 12:

example 1: referring to fig. 1-10, the utility model discloses a chair with multifunctional armrests 3 and lumbar support 5, comprising a chair seat 1, a backrest 2 and armrests 3, wherein armrests 3 are arranged on two sides of the chair seat 1, the backrest 2 is arranged on the rear side of the chair seat 1, the bottom of the chair seat 1 is connected with a supporting piece, a universal wheel set and a lifting cylinder supporting piece or a four-leg supporting piece are adopted as the supporting piece, the lumbar support 5 is rotatably arranged on the inner sides of the chair seat 1 and the backrest 2, the lumbar support 5 comprises a rotating arm assembly 51 and a lumbar support assembly 52, one end of the rotating arm assembly 51 is hinged with the chair seat 1, the other end of the rotating arm assembly is connected with the lumbar support assembly 52, the armrests 3 comprises a supporting seat 31, a movable plate 32 and an armrest surface 34, the movable plate 32 is detachably arranged above the supporting seat 31, the armrest surface 34 is fixedly arranged above the movable plate 32, in certain embodiments, the armrest surface 34 and the moving plate 32 may be integrated on one component, the moving plate 32 is transversely provided with a first chute 311 and a second chute 312, the first chute 311 and the second chute 312 are parallel and hollow, the supporting seat 31 is provided with a first bolt 321 and a second bolt 322, it should be understood that the bolts include a screw end and a nut end, the bolts are a complete set of bolt assemblies, the first bolt 321 and the second bolt 322 are respectively embedded in the first chute 311 and the second chute 312, i.e. the screw end of the first bolt 321 is located in the first chute 311, the screw end of the second bolt 322 is located in the second chute 312, because the two chutes are transversely arranged, i.e. perpendicular to the length direction of the armrest 3, during assembly, the bolts can be optionally slightly unscrewed, so that the connection between the moving plate 32 and the supporting seat 31 is not fixed, and even if the bolts are screwed, the hand-pulling device can also be pulled by a little force, so that the hand-pulling device can directly pull the hand rest surface 34 to drive the lower moving plate 32 to transversely move left and right relative to the hand rest 3 seat, so that the moving plate 32 can transversely move left and right relative to the supporting seat 31, and secondly, because the two sliding grooves are used for clamping, the sliding grooves have a transverse width and have a certain longitudinal space relative to the screw end of the bolt, when the hand rest surface 34 is directly held by a hand, the hand rest surface 34 can be rotated by a little hand, the moving plate 32 can also adjust the posture of micro-rotation relative to the hand rest 3 seat, the rotation amplitude is not large, but the rotating amplitude is enough to meet most of the requirements for the function of the rotation angle, after all, the hand of the user needs to be lifted forward on the hand rest surface 34, and only the angle requirement that the hand rest surface 34 is slightly inwards or outwards is needed by a part of users needs to be fine-adjusted.

Referring to fig. 2 and 3, specifically, the moving plate 32 is provided with a first sliding seat 313 and a second sliding seat 314, where the first sliding groove 311 is located on the first sliding seat 313, the second sliding groove 312 is located on the second sliding seat 314, which is different from the previous embodiment, in this embodiment, the sliding seat is disposed at the upper end of the moving plate 32, and the two sliding grooves are disposed on the respective sliding seat, so that the installation height of the bolt can be raised, thereby obtaining a better installation space, and a spacer can be added at the nut end of the bolt during installation.

Referring to fig. 2 and 3, in a further supplementary embodiment, the inner side of the first sliding seat 313 is provided with a first inner slide ring 315, wherein the end surface of the first sliding seat 313 and the end surface of the first inner slide ring 315 form a step for limiting sliding of the nut of the bolt, the inner side of the second sliding seat 314 is provided with a second inner slide ring 316, wherein the end surface of the second sliding seat 314 and the end surface of the second inner slide ring 316 form a step for limiting sliding of the nut of the bolt, at this time, compared with the previous embodiment, the limiting can be realized directly without adding a spacer, but rather depending on the nut itself, the inner slide ring has a lower height and a higher height, so that the bolt is further limited when sliding inside (it is to be understood that the bolt is connected from the supporting seat 31, the bolt itself is not movable, and only the moving plate 32 is written as a limiting bolt for convenience of description).

Referring to fig. 3 and 4, specifically, in the specific assembly details of the moving plate 32 and the supporting seat 31, the present utility model provides a scheme, the supporting seat 31 is further provided with an assembly plate 33, the assembly plate 33 is provided with an assembly hole 331, and the first bolt 321 and the second bolt 322 are assembled with the first chute 311 and the second chute 312 at the upper end through the assembly hole 331.

Referring to fig. 4, specifically, the assembly plate 33 is provided with a stop ring strip 332 for the small rotation of the moving plate 32 by means of the first sliding groove 311 and the second sliding groove 312, the position of the moving plate 32 corresponding to the stop ring strip 332 is provided with a stop ring block 333, the stop ring strip 332 includes an inner ring strip 332a and an outer ring strip 332b, wherein the inner ring strip 332a is circular and is located between the two assembly holes 331, the outer ring strip 332b is circular and is located outside the two assembly holes 331, each corresponding stop ring strip 332 is provided with a stop ring block 333 (not shown), and during the small rotation of the moving plate 32, a rotation shaft is required for a certain component to rotate according to the conventional concept, here, because of the two bolts and the two sliding grooves, the first sliding groove 311, the second sliding groove 312, the first bolt 321 and the second bolt 322, when the front armrest surface 34 is twisted, the first sliding groove 311 rotates right or left around the first bolt 321, and when the rotation shaft is the second bolt 322 is the second rotation shaft, and the rotation shaft is the first rotation shaft 321 and the second rotation shaft is the first rotation shaft.

Referring to fig. 5-7, specifically, the swivel arm assembly 51 includes a swivel arm 511 and a lumbar support 512, the swivel arm 511 is located at two sides of the seat 1, the lumbar support 512 is connected to the inner side of the corner connection position crossing the seat 1 and the backrest 2 by the swivel arm 511, that is, the back position of the waist of the person sitting on the chair, wherein the lumbar support 512 is used for installing the lumbar support assembly 52, the lumbar support assembly 52 includes a lumbar support 521 and a headrest frame 522, the headrest frame 522 is disposed in the same shape as the lumbar support 512, the lumbar support 521 and the headrest frame 522 are disposed in the same shape, an expansion hole 521a is disposed at the inner side of the lumbar support 521, an expansion column 522a is disposed at the position corresponding to the expansion column 521a on the headrest frame 522, the expansion column 522a can extend into the expansion column 521a, because the expansion column 522a is a column, but other inner sides are provided with holes, the expansion column 522a is disposed at the position corresponding to the expansion column 522a, the expansion column 522a passes through the expansion column 522a to reach the expansion column 521a, and the expansion column 521a cannot be more easily inserted around the expansion column 521a than the expansion column 521a, when the expansion column 521 is not more than the expansion column 521a can be easily inserted around the waist support 512a, and the expansion column 521 can not be easily inserted around the expansion column 521 a.

Referring to fig. 5-7, specifically, a rotating seat 11 is disposed on the outer side of the seat 1, a rotating groove 111 is disposed on the rotating seat 11, a torsion spring 13 is sleeved in the rotating groove 111, a lock insertion hole 111a is disposed in the rotating groove 111, one torsion arm of the torsion spring 13 is inserted in the lock insertion hole 111a, a rotating hole 511a is disposed on the rotating arm 511 corresponding to the position of the rotating groove 111, a lock insertion hole 511b is disposed on one side of the rotating hole 511a, the other torsion arm of the torsion spring 13 is embedded in the lock insertion hole 511b, two torsion arms of the torsion spring 13 form a positive torsion or a reverse torsion or a previous torsion, one torsion arm is disposed on the rotating seat 11, one torsion arm 511 is just connected with a lumbar support assembly 52 above, so that when sitting on the chair, the lumbar support is pressed backwards, the torsion spring 13 plays a buffering role, and a locking cover 12 is disposed on the outer side of the rotating hole 511 a.

Referring to fig. 5 to 10, as another preferred embodiment, a rotation limiting block 511c is disposed on the rotating arm 511 at a side of the rotation hole 511a, a rotation limiting groove 111b is disposed on the rotating seat 11 at a side of the rotation groove 111, and when the rotating arm 511 rotates, a rotation stroke is limited by means of the rotation limiting block 511c and the rotation limiting groove 111 b.

Referring to fig. 5-10, as other preferred embodiments, the lock cover 12 is provided with a first clamping block 121 and a second clamping block 122, one side of the rotating hole 511a is provided with a first clamping groove 511d and a second clamping groove 511e, which are respectively inserted and locked with the first clamping block 121 and the second clamping block 122, wherein the diameter of the first clamping block 121 is smaller than that of the second clamping block 122, specifically, since the rotating arm 511 is installed at two sides of the seat 1 in a clamping manner, after the alignment and clamping, the torsion spring 13 is installed, and then is fixed without installing a fixing bolt or the like, and the clamping force is added, and the hinge shaft hole 111e is also provided at the inner side of the rotating groove 111 as a later assembly requirement by means of the cooperation of the rotating seat 11, the rotating hole 511a and the rotation limiting groove 111b with the rotation limiting block 511c, and the hinge shaft hole 111e can be locked inwards by a screw from one side of the lock cover 12, and can also serve as a locking bolt at the same time.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (9)

1. The utility model provides a take multi-functional handrail and chair of waist to lean on, includes seat support, back, handrail, the handrail is installed to the both sides of seat support, and the back is installed to the rear side of seat support, the bottom and the support piece of seat support are connected, its characterized in that: the utility model provides a chair, including back, seat and back, the inboard rotatable mounting of back is leaned on, the waist leans on including rocking arm subassembly and waist and leans on the subassembly, the one end and the seat of rocking arm subassembly are articulated each other, the other end is leaned on the subassembly interconnect with waist, the handrail includes supporting seat, movable plate and handrail face, the top at the supporting seat is installed to the movable plate is removable, handrail face fixed mounting is in the top of movable plate, horizontal fretwork is equipped with first spout and second spout on the movable plate, be equipped with first bolt and second bolt on the supporting seat, wherein first bolt and second bolt inlay respectively in first spout and second spout to realize that the movable plate is moved about and is rotated by a short margin for the supporting seat.

2. A chair with a multi-functional armrest and lumbar support according to claim 1, wherein: the movable plate is provided with a first sliding seat and a second sliding seat, wherein the first sliding groove is positioned on the first sliding seat, and the second sliding groove is positioned on the second sliding seat.

3. A chair with a multi-functional armrest and lumbar support as claimed in claim 2, wherein: the inner side of the first sliding seat is provided with a first inner sliding ring, wherein the end face of the first sliding seat and the end face of the first inner sliding ring form a step for limiting sliding of a nut of the bolt, the inner side of the second sliding seat is provided with a second inner sliding ring, and the end face of the second sliding seat and the end face of the second inner sliding ring form a step for limiting sliding of the nut of the bolt.

4. A seat with a multi-functional armrest and lumbar support as claimed in any one of claims 1 to 3, characterized in that: the assembly device is characterized in that an assembly plate is further arranged on the support seat, an assembly hole is formed in the assembly plate, and the first bolt and the second bolt are assembled through the assembly hole and the first sliding groove and the second sliding groove at the upper end.

5. A chair with a multi-functional armrest and lumbar support according to claim 4, wherein: the assembly plate is provided with a limit ring strip for the movable plate to realize small-amplitude rotation by means of the first sliding groove and the second sliding groove, and a limit ring block is arranged at the position, corresponding to the limit ring strip, on the movable plate.

6. A chair with a multi-functional armrest and lumbar support according to claim 5, wherein: the limiting ring strip comprises an inner ring strip and an outer ring strip, wherein the inner ring strip is circular and is positioned between two assembly holes, the outer ring strip is circular and is positioned at the outer sides of the two assembly holes, and each corresponding limiting ring strip is provided with a limiting ring block.

7. A chair with a multi-functional armrest and lumbar support according to claim 1, wherein: the rocking arm subassembly includes rocking arm and waist rest, the rocking arm is located the both sides of seat support, waist rest is connected to the corner connected position inboard that spans in seat support and back through the rocking arm extension, and wherein waist rest is used for installing waist rest subassembly, waist rest subassembly includes waist rest and rest, and wherein rest and waist rest the same shape setting, waist rest and rest the same shape setting of same, the inboard of waist rest is equipped with the inflation hole, the position that corresponds the inflation hole on the rest is equipped with the inflation post hole, the position that corresponds the inflation post hole on the waist rest is equipped with expansion bolt, expansion bolt passes the inflation post hole and arrives the installation of inflation hole realization waist rest, rest and waist rest, the outside of seat support is equipped with the rolling seat, be equipped with the rotary groove on the rolling seat, the torsional spring is located the rotary inslot, be equipped with the lock jack in the rotary groove, one of torsional spring inserts in the lock jack, the position that corresponds the rotary groove on the rocking arm is equipped with the rotary hole, one side of rotary hole is equipped with the lock slot, another torsional arm is equipped with the lock slot in the outside of this torsional spring cover.

8. A chair with a multi-functional armrest and lumbar support according to claim 7, wherein: the rotary arm is characterized in that a rotation limiting block is arranged on one side of the rotary hole, which is located on the rotary seat, a rotation limiting groove is formed in one side of the rotary groove, and when the rotary arm rotates, the rotary arm is limited by means of the rotation limiting block and the rotation limiting groove in a rotation stroke.

9. A seat with a multi-functional armrest and lumbar support according to any one of claims 7-8, characterized in that: the lock cover is provided with a first clamping block and a second clamping block, one side of the rotating hole is provided with a first clamping groove and a second clamping groove, the first clamping block and the second clamping block are respectively inserted and locked, and the diameter of the first clamping block is smaller than that of the second clamping block.