CN215776744U - Control mechanism capable of adjusting waist back and headrest front and back - Google Patents

Abstract

The utility model relates to a control mechanism capable of adjusting the front and back of a waist rest and a headrest. It has solved the inconvenient scheduling problem of current headrest or waist lean on fore-and-aft adjustment. Including the bottom plate, bottom plate one side is equipped with the support chassis, the support chassis has horizontal fixed part and the horizontal movable part that transversely just corresponds the setting, at least one vertical deformation portion of making by elastic material has between horizontal fixed part and the horizontal movable part, vertical deformation portion has the arch supporting part of keeping away from bottom plate one side bending towards, horizontal fixed part links to each other with bottom plate one end, the bottom plate other end is equipped with the mount pad, the activity is equipped with the regulation seat that links to each other with horizontal movable part on the mount pad, and be equipped with adjustable locking mechanical system from top to bottom between mount pad and the regulation seat. Has the advantages that: the adjustment does not need a button, the process is simple and convenient, the longitudinal deformation of the supporting framework is realized by the vertical movement of the adjusting seat relative to the mounting seat, the headrest or the waist is adjusted by the front and back positions, the adjustment process is smooth and free from obstruction, and the shaking phenomenon is not easy to generate.

Description

Control mechanism capable of adjusting waist back and headrest front and back

Technical Field

The utility model belongs to the technical field of household articles, and particularly relates to a control mechanism capable of adjusting the front and back of a waist rest and a headrest.

Background

The chair is a daily-life furniture, and is a seat with a backrest and armrests. Common chairs, such as leather chairs, office chairs, and the like. With the increasing emphasis on the comfort and functional design of chairs, various functional devices have been added to the lumbar support or headrest of chairs, such as chairs with headrests or lumbar supports, which can be adjusted in front and rear positions to facilitate the leaning of the head or waist of the user. However, the front and back adjustment of the headrest or the lumbar support of the existing chair requires a large force to be applied to the headrest or the lumbar support so that the headrest or the lumbar support can move forwards or backwards, the adjustment process is complicated, meanwhile, the front and back adjustment structure of the headrest or the lumbar support of the existing chair is complicated, and the adjustment can be completed only by matching a plurality of parts with each other, once a certain part is damaged, the whole headrest or the whole lumbar support cannot be normally adjusted forwards or backwards, and therefore, the normal use of the existing chair is greatly influenced by the problems.

In order to solve the problems of the prior art, people have long searched for and put forward various solutions. For example, chinese patent document discloses a headrest mechanism that can move forward and backward and lift [ application No.: 201920483551.6], including headrest frame, connecting rod, lifting support, lifter and slide mechanism, the upper portion of headrest frame is rotated with lifting support's top and is connected, and the lower part of headrest frame is rotated with the bottom of connecting rod and is connected, and the top and the slide mechanism of connecting rod rotate to be connected, lifting support's bottom is provided with logical groove, and the last side of headrest frame of lifting support orientation is provided with the spout that communicates with logical groove, the bottom and the back of chair of lifter are connected, and the upper end slidable mounting of lifter is leading to the inslot, slide mechanism slidable mounting is in the spout, and slide mechanism and lifter arrange the one end cooperation that leads to the inslot in.

The scheme relieves the problem that a large acting force needs to be applied when the headrest of the existing chair is adjusted forwards and backwards to a certain extent, but the scheme still has the following steps: the structure is comparatively complicated, and the headrest is adjusted the linkage from top to bottom and front and back, can't in time adjust the headrest to the front and back position scheduling problem that needs.

Disclosure of Invention

The utility model aims to solve the problems and provides a control mechanism capable of adjusting the front and the back of a waist rest and a headrest.

In order to achieve the purpose, the utility model adopts the following technical scheme: this control mechanism around adjustable waist is leaned on, headrest, comprising a base plate, bottom plate one side be equipped with the support chassis, its characterized in that, the support chassis horizontal fixed part and the horizontal movable part that transversely just correspond the setting have, horizontal fixed part and horizontal movable part between have at least one vertical deformation portion of being made by elastic material, vertical deformation portion have towards keeping away from the arch supporting part of bottom plate one side bending, horizontal fixed part link to each other with bottom plate one end, the bottom plate other end be equipped with the mount pad, the mount pad on the activity be equipped with the regulation seat that links to each other with horizontal movable part, just mount pad and regulation seat between be equipped with and enable to adjust the seat and drive horizontal movable part and be close to or keep away from the upper and lower adjustable locking mechanical system of horizontal fixed part along mount pad axial reciprocating motion.

In the control mechanism for the adjustable lumbar support and the headrest, the number of the longitudinal deformation parts is one, the longitudinal deformation parts are arc-shaped plate-shaped, and two ends of each longitudinal deformation part are respectively connected with the middle parts of the transverse fixing parts and the transverse movable parts.

In the above-mentioned control mechanism around adjustable waist is leaned on, the headrest, the quantity of longitudinal deformation portion be two and each longitudinal deformation portion both ends link to each other with horizontal fixed part tip and horizontal movable part tip respectively, just horizontal fixed part and horizontal movable part and longitudinal deformation portion circumference enclose and form frame column structure, just mount pad and regulation seat in at least one be located frame column structure.

In the above control mechanism for the adjustable lumbar support and the headrest, the transverse fixing part, the transverse moving part and the longitudinal deformation part are integrally formed, and the support framework is rectangular frame-shaped or rectangular frame-shaped and is formed by bending an elastic wire for multiple times.

In the control mechanism for adjusting the waist support and the headrest in front and back, the up-and-down adjustable locking mechanism comprises a circulating type lifting adjusting structure arranged between an adjusting seat and a mounting seat, the mounting seat is of a flat structure and is formed by connecting a first mounting plate and a second mounting plate which are vertically arranged in parallel through a detachable structure, a vertically arranged sliding channel is formed between the first mounting plate and the second mounting plate, the adjusting seat is movably arranged in the sliding channel in a penetrating way, two ends of the adjusting seat respectively extend to the outer side of the sliding channel, the adjusting seat is transversely arranged and is vertical to the mounting seat, and the circulating type lifting adjusting structure is arranged between the first mounting plate and the adjusting seat or between the second mounting plate and the adjusting seat, adjust seat one side and be equipped with first vertical direction subassembly between the first mounting panel, be equipped with the vertical direction subassembly of second between opposite side and the second mounting panel.

In the control mechanism for adjusting the waist support and the headrest, the first vertical guide assembly comprises a plurality of guide convex strips vertically arranged on one side of the adjusting seat close to the first mounting plate, a plurality of guide sliding grooves which axially extend along the first mounting plate and correspond to the guide convex strips are arranged on one side of the first mounting plate, and the guide convex strips are connected with the guide sliding grooves in a sliding manner; first mounting panel one side be equipped with a plurality of groups direction protruding muscle group in proper order, each group direction protruding muscle group all has two direction protruding muscle bodies, just the direction spout form between the protruding muscle body of direction.

In the control mechanism for the adjustable lumbar support and the front and rear headrest, the second vertical guide assembly comprises a guide boss which is arranged on one side of the adjusting seat close to the second mounting plate and extends towards the second mounting plate, boss sliding strips which exceed the guide boss are respectively arranged on two sides of the guide boss, an inwards recessed rectangular recessed part is arranged on one side of the second mounting plate, a rectangular frame is arranged on the circumferential outer side of the rectangular recessed part, and two sides of the rectangular frame are respectively connected with the boss sliding strips in a sliding manner; the vertical direction subassembly of second still including setting up respectively in second mounting panel both sides and along the direction extension of second mounting panel axial extension, the direction extension bar guide way that has the axial extension and set up, the both ends that adjust the seat and be located the slip passage outside have the pedestal sliding block that slides and set up in the bar guide way respectively, the direction extension one side of keeping away from adjusting the seat be equipped with respectively with the pedestal sliding block link to each other and with the spacing preforming that the direction extension offseted and leaned on.

In foretell adjustable waist leans on, the control mechanism around the headrest, first mounting panel and second mounting panel all be the rectangular plate shape of equidimension isometric, one side both ends that first mounting panel is close to the second mounting panel have respectively towards the plate body extension that the second mounting panel extended the setting, just thereby the plate body extension support and lean on and form sliding channel in the second mounting panel one end outside between first mounting panel and second mounting panel, just detachable construction set up between plate body extension and second mounting panel.

In the control mechanism of the adjustable waist rest and the headrest, the mounting seat is located on the circumferential inner side of the support framework, the arched support parts on the two longitudinal deformation parts are arranged correspondingly to each other and located on two sides of the mounting seat, and two ends of the adjusting seat located on the outer side of the sliding channel are connected with the transverse movable part through the movable part mounting plate located on the outer side of the mounting seat.

In foretell adjustable waist leans on, the control mechanism around the headrest, bottom plate one end transversely be equipped with a plurality of fixed part mount pads in proper order, just horizontal fixed part on have respectively towards the bottom plate crooked and with the crooked fixed part that the fixed part mount pad links to each other, the movable part mounting panel keep away from the one end of horizontal fixed part and be equipped with the threading barrel of horizontal setting, just horizontal movable part fix or rotate and wear to locate in the threading barrel.

Compared with the prior art, the control mechanism of the adjustable waist support and the headrest has the advantages that: simple structure is reasonable, and the regulation need not the button, and the process is simple and convenient, reciprocates for the mount pad through adjusting the seat and realizes headrest or waist and lean on the regulation of front and back position, adjusts the seat activity and sets up in the mount pad that first mounting panel and second mounting panel amalgamation formed, and the direction subassembly of adjusting the seat both sides makes the adjustment process smooth and easy, and is unimpeded, and the phenomenon is rocked in difficult production.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another view angle according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an up-down adjustable locking mechanism according to a first embodiment of the present invention.

FIG. 4 is a schematic view of another angle of view of the vertically adjustable locking mechanism according to the first embodiment of the present invention.

Fig. 5 is an exploded view of the upper and lower adjustable locking mechanisms in accordance with one embodiment of the present invention.

Fig. 6 is an exploded view of another perspective of the vertically adjustable locking mechanism according to one embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a second mounting plate according to a first embodiment of the utility model.

Fig. 8 is a schematic structural diagram of an adjusting seat according to a first embodiment of the utility model.

Fig. 9 is a schematic structural view of another structure of the second vertical guiding assembly in the first embodiment of the utility model.

In the figure, the mounting seat 1, the first mounting plate 11, the first reinforcing rib 111, the second mounting plate 12, the second reinforcing rib 121, the bottom plate fixing hole 122, the bottom plate fixing post 123, the sliding channel 13, the plate extending portion 14, the adjusting seat 2, the mounting plate fixing post 21, the mounting plate fixing hole 211, the cylinder reinforcing rib 22, the circulating type elevation adjusting structure 3, the adjusting block mounting groove 31, the adjusting block body 32, the elevation cylinder 33, the adjusting groove 34, the strip-shaped protrusion 341, the ascending rail 35, the tooth-shaped portion 351, the descending rail 36, the reset inclined surface 37, the detachable structure 4, the plate positioning post 41, the plate positioning groove 42, the mounting hole 43, the positioning hole 44, the first vertical guide assembly 5, the guide convex strip 51, the guide sliding groove 52, the guide convex rib body 53, the second vertical guide assembly 6, the guide boss 61, the boss sliding strip 62, the rectangular recessed portion 63, the rectangular frame 64, the guide extending portion 65, the guide convex portion 51, the guide protrusion 341, the guide groove 35, the guide groove 341, the guide groove 35, and the guide groove 35, The threading device comprises a strip-shaped guide groove 66, a seat body sliding block 67, a limiting pressing sheet 68, a bottom plate 7, a fixing part mounting seat 71, a bending fixing part 72, a supporting framework 8, a transverse fixing part 81, a transverse moving part 82, a longitudinal deformation part 83, an arched supporting part 831, a moving part mounting plate 9 and a threading cylinder 91.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-2, the control mechanism for front and back of the adjustable lumbar support and headrest comprises a bottom plate 7, a supporting framework 8 is arranged on one side of the bottom plate 7, the supporting framework 8 is provided with a transverse fixing part 81 and a transverse moving part 82 which are transversely and correspondingly arranged, at least one longitudinal deformation part 83 made of elastic materials is arranged between the transverse fixing part 81 and the transverse moving part 82, the longitudinal deformation part 83 is provided with an arch-shaped supporting part 831 which is bent towards one side far away from the bottom plate 7, the transverse fixing part 81 is connected with one end of the bottom plate 7, the other end of the bottom plate 7 is provided with a mounting seat 1, an adjusting seat 2 connected with the transverse moving part 82 is movably arranged on the mounting seat 1, and an up-down adjustable locking mechanism which can enable the adjusting seat 2 to axially reciprocate along the mounting seat 1 so as to drive the transverse moving part 82 to be close to or far away from the transverse fixing part 81 is arranged between the mounting seat 1 and the adjusting seat 2.

Support chassis 8 in this embodiment can be for the headrest framework of headrest or the waist of leaning on the skeleton, 8 outside parcels of support chassis have the flexible layer, inside packing has flexible filler, wherein, bottom plate 7 is the backup pad of setting in the back of the chair, be the headrest framework when support chassis 8 sets up on bottom plate 7, lean on the skeleton for the waist when support chassis 8 sets up at bottom plate 7 lower extreme, it is obvious, thereby it is close to or keeps away from horizontal fixed part 81 to drive horizontal movable part 82 along mount pad 1 axial reciprocating motion through adjustable locking mechanical system from top to bottom when adjusting seat 2, make support chassis 8's vertical deformation portion 83 produce deformation like this, thereby make arch support 831 front and back position change, realize the waist and lean on, adjustment around the headrest.

In order to adjust the lumbar support and the headrest back and forth, the number of the longitudinal deformation portions 83 is two, two ends of each longitudinal deformation portion 83 are respectively connected with the end portion of the transverse fixing portion 81 and the end portion of the transverse moving portion 82, the transverse fixing portion 81, the transverse moving portion 82 and the longitudinal deformation portion 83 are circumferentially enclosed to form a frame-shaped structure, and at least one of the mounting seat 1 and the adjusting seat 2 is located in the frame-shaped structure.

Preferably, the transverse fixing portion 81 and the transverse moving portion 82 and the longitudinal deformation portion 83 are integrally formed, the supporting framework 8 is rectangular frame-shaped or rectangular frame-shaped, and the supporting framework 8 is formed by bending an elastic wire for multiple times, for example, the supporting framework 8 may be formed by bending a spring steel wire and welding two ends.

In order to reduce the occupied space of the control mechanism, the mounting seat 1 is located at the circumferential inner side of the supporting framework 8, the arched supporting portions 831 on the two longitudinal deformation portions 83 are arranged corresponding to each other and located at two sides of the mounting seat 1, and two ends of the adjusting seat 2 located at the outer side of the sliding channel 13 are connected with the transverse movable portion 82 through the movable portion mounting plates 9 located at the outer side of the mounting seat 1.

Wherein, bottom plate 7 one end here transversely is equipped with a plurality of fixed part mount pads 71 in proper order, and has the crooked fixed part 72 that bends towards bottom plate 7 and link to each other with fixed part mount pad 71 on the horizontal fixed part 81 respectively, fixed part mount pad 71 here can be the fixed calliper of setting on bottom plate 7, through linking to each other crooked fixed part 72 with fixed calliper and realizing the installation of horizontal fixed part 81, wherein, the one end that horizontal fixed part 81 was kept away from to movable part mounting panel 9 is equipped with the threading barrel 91 of horizontal setting, and horizontal movable part 82 is fixed or is rotated and worn to locate in threading barrel 91.

Further, as shown in fig. 1 and fig. 3-6, in order to realize the adjustment base 2 moving back and forth along the axial direction of the installation base 1, the up-down adjustable locking mechanism includes a circular lifting adjustment structure 3 disposed between the adjustment base 2 and the installation base 1, the installation base 1 is a flat structure and is formed by connecting a first installation plate 11 and a second installation plate 12 disposed in parallel and vertically through a detachable structure 4, a vertically disposed sliding channel 13 is formed between the first installation plate 11 and the second installation plate 12, the adjustment base 2 is movably inserted into the sliding channel 13 and both ends of the adjustment base respectively extend to the outer side of the sliding channel 13, the adjustment base 2 is transversely disposed and perpendicular to the installation base 1, the circular lifting adjustment structure 3 is disposed between the first installation plate 11 and the adjustment base 2 or between the second installation plate 12 and the adjustment base 2, a first vertical guiding component 5 is disposed between one side of the adjustment base 2 and the first installation plate 11, a second vertical guide assembly 6 is arranged between the other side of the second mounting plate 12.

The mount pad 1 occupation space of platykurtic structure in this embodiment is little, mutually supports with first mounting panel 11 and second mounting panel 12 respectively through the vertical guide subassembly 5 of first vertical guide subassembly and the vertical guide subassembly 6 of second of adjusting 2 both sides of seat for the adjustment process is smooth and easy from top to bottom, and is unimpeded, and difficult production rocks the phenomenon.

In order to realize linking to each other of adjusting seat 2 and movable part mounting panel 9, regulation seat 2 here is rectangular plate-like, and adjust 2 both ends of seat and be equipped with a plurality of mounting panel fixed columns 21 that have mounting panel fixed orifices 211 respectively, and mounting panel fixed column 21 from the top down in proper order towards the setting of 1 inclined distribution of mounting panel, be equipped with cylinder strengthening rib 22 between two adjacent mounting panel fixed columns 21, mounting panel fixed column 21 here highly all surpasss first mounting panel 11 thickness, and the mounting panel fixed column 21 that is located the top highly is less than the mounting panel fixed column 21 that is located the below, make mounting panel fixed column 21 can extend to first mounting panel 11 and keep away from one side of adjusting seat 2 like this, then, mounting panel fixed orifices 211 passes through the bolt and links to each other with movable part mounting panel 9.

Wherein, the first mounting plate 11 here keeps away from one side of adjusting seat 2 and has first strengthening rib 111, and the second mounting plate 12 keeps away from one side of adjusting seat 2 and has second strengthening rib 121, one side that has second strengthening rib 121 at second mounting plate 12 is equipped with a plurality of bottom plate fixed columns 123 that have bottom plate fixed orifices 122, and bottom plate fixed column 123 distributes and sets up in second mounting plate 12 both ends, and the bottom plate fixed column 123 length that is located the upper end of second mounting plate 12 is less than bottom plate fixed column 123 of second mounting plate 12 lower extreme, bottom plate fixed orifices 122 on bottom plate fixed column 123 here are used for linking to each other with bottom plate 7.

Specifically, the first vertical guide assembly 5 here includes a plurality of guide ribs 51 vertically disposed on a side of the adjusting base 2 close to the first mounting plate 11, a plurality of guide slide grooves 52 extending in an axial direction of the first mounting plate 11 and corresponding to the guide ribs 51 are disposed on the side of the first mounting plate 11, and the guide ribs 51 are slidably connected to the guide slide grooves 52. Obviously, in order to improve the structural strength, the first mounting plate 11 is integrally formed with a plurality of guiding rib groups in sequence, each guiding rib group has two guiding rib bodies 53, and the guiding sliding grooves 52 are formed between the guiding rib bodies 53. The sliding connection between the adjusting base 2 and the first mounting plate 11 is realized by the mutual sliding of the guide sliding groove 52 and the guide protruding strip 51.

The second vertical guiding assembly 6 here includes a guiding boss 61 disposed on one side of the adjusting seat 2 close to the second mounting plate 12 and extending toward the second mounting plate 12, the guiding boss 61 has boss sliding strips 62 protruding from the guiding boss 61 on both sides, the second mounting plate 12 has an inwardly recessed rectangular recessed portion 63 on one side, a rectangular frame 64 is disposed on the circumferential outer side of the rectangular recessed portion 63, and both sides of the rectangular frame 64 are slidably connected with the boss sliding strips 62.

Meanwhile, as shown in fig. 9, in order to further improve the guiding effect between the adjusting seat 2 and the second mounting plate 12, the second vertical guiding assembly 6 further includes guiding extending portions 65 respectively disposed at two sides of the second mounting plate 12 and extending axially along the second mounting plate 12, the guiding extending portions 65 have bar-shaped guiding grooves 66 extending axially, two ends of the adjusting seat 2 located at the outer side of the sliding channel 13 respectively have seat body sliding blocks 67 slidably disposed in the bar-shaped guiding grooves 66, one side of the guiding extending portions 65 away from the adjusting seat 2 is respectively provided with a limiting pressing sheet 68 connected to the seat body sliding blocks 67 and abutting against the guiding extending portions 65, so that the adjusting seat 2 and the second mounting plate 12 slide more smoothly with each other, and the limiting pressing sheets 68 prevent the adjusting seat 2 from shaking back and forth.

First mounting panel 11 and second mounting panel 12 in this embodiment all are the rectangular plate shape of the isometric width of uniform, and first mounting panel 11 has integrated into one piece and extends the plate body extension 14 that sets up towards second mounting panel 12 respectively near one side both ends of second mounting panel 12, and thereby plate body extension 14 supports and leans on in the one end outside of second mounting panel 12 and forms slide channel 13 between first mounting panel 11 and second mounting panel 12, and detachable construction 4 sets up between plate body extension 14 and second mounting panel 12.

When second mounting panel 12 and plate body extension 14 lean on each other, in order to combine the two, detachable construction 4 here includes a plurality of plate body reference columns 41 that set up on plate body extension 14, and the second mounting panel 12 tip outside is equipped with a plurality of plate body constant head tanks 42 with plate body reference column 41 one-to-one respectively, and plate body reference column 41 pegs graft in plate body constant head tank 42, and links to each other through the removable assecmbly between second mounting panel 12 and the plate body reference column 41. Preferably, the detachable assembly includes a plurality of mounting holes 43 disposed at the end of the second mounting plate 12 and corresponding to the plate positioning slots 42, respectively, the plate positioning posts 41 have positioning holes 44 corresponding to the mounting holes 43, and the mounting holes 43 are connected to the positioning holes 44 through mounting bolts.

As shown in fig. 5-8, in order to realize the up-and-down circulation lifting of the adjusting seat 2, the circulation type lifting adjusting structure 3 includes an adjusting block mounting groove 31 disposed in the guiding boss 61, an adjusting block 32 is movably disposed in the adjusting block mounting groove 31, a lifting column 33 is disposed on one side of the adjusting block 32, an adjusting groove 34 disposed along the second mounting plate 12 and extending for inserting the lifting column 33 is disposed on one side of the second mounting plate 12, the adjusting groove 34 is formed in a strip-shaped protrusion 341 on one side of the second mounting plate 12, an ascending rail 35 having a plurality of teeth 351 sequentially disposed from bottom to top is formed on one side of the adjusting groove 34, a descending rail 36 vertically disposed is disposed on the other side of the adjusting groove 34, the teeth 351 are respectively disposed to extend obliquely and upwardly toward the descending rail 36, a reset slope 37 connected to the upper end of the descending rail 36 is disposed on the upper end of the ascending rail, and a space is disposed between the adjusting block 31 and the adjusting block 32 for keeping the lifting column 33 moving toward the ascending rail 35 The top pressure spring of trend. In an initial state, the lifting column 33 is located in the tooth-shaped portion 351 of the lifting rail 35 located at the lowermost position, when the adjusting base 2 moves upward, the first gear and the first gear are lifted, and the lifting column 33 is pushed into the corresponding tooth-shaped portion 351 to achieve locking under the action of the jacking spring, when the lifting column 33 rises to the reset inclined surface 37 at the uppermost position of the lifting rail 35, the lifting column 33 slides along the reset inclined surface 37 to enable the adjusting block 32 to swing so as to overcome the pressure of the jacking spring, until the lifting column 33 enters the uppermost position of the descending rail 36, so that the lifting column 33 can freely fall to the lowermost position of the descending rail 36, and a cyclic lifting process is achieved. The circulating type elevation adjustment structure 3 in this embodiment does not exclude the possibility of adopting other adjustment methods.

Example two

The structure, principle and implementation steps of this embodiment are similar to those of the embodiment, except that the number of the longitudinal deformation portions 83 in this embodiment is one, the longitudinal deformation portions 83 are arc-shaped plate-shaped, and two ends of the longitudinal deformation portions 83 are respectively connected to the middle of the transverse fixing portion 81 and the middle of the transverse moving portion 82, obviously, the supporting and deforming effects can also be achieved by using flat and curved elastic steel plates.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the mount 1, the first mount plate 11, the first reinforcing rib 111, the second mount plate 12, the second reinforcing rib 121, the bottom plate fixing hole 122, the bottom plate fixing post 123, the slide passage 13, the plate extension portion 14, the adjusting seat 2, the mount plate fixing post 21, the mount plate fixing hole 211, the cylinder reinforcing rib 22, the endless elevation adjusting structure 3, the adjusting block mounting groove 31, the adjusting block body 32, the elevation cylinder 33, the adjusting groove 34, the strip-shaped protrusion 341, the ascending rail 35, the tooth portion 351, the descending rail 36, the return inclined surface 37, the detachable structure 4, the plate positioning post 41, the plate positioning groove 42, the mount hole 43, the positioning hole 44, the first vertical guide member 5, the guide protrusion 51, the guide sliding groove 52, the guide protrusion rib body 53, the second vertical guide member 6, the guide boss 61, the boss slide bar 62, the rectangular recessed portion 63, the rectangular frame 64, the guide groove 3, the guide groove 32, the guide groove 34, and the guide groove 4, The terms of the guide extending part 65, the strip-shaped guide groove 66, the seat body slide block 67, the limit pressing sheet 68, the bottom plate 7, the fixing part mounting seat 71, the bending fixing part 72, the support frame 8, the transverse fixing part 81, the transverse moving part 82, the longitudinal deformation part 83, the arched support part 831, the moving part mounting plate 9, the threading cylinder 91 and the like do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (10)

1. The utility model provides an adjustable waist leans on, headrest front and back control mechanism, includes bottom plate (7), bottom plate (7) one side be equipped with support skeleton (8), a serial communication port, support skeleton (8) horizontal fixed part (81) and horizontal movable part (82) that transversely just correspond the setting have, horizontal fixed part (81) and horizontal movable part (82) between have at least one vertical deformation portion (83) of being made by elastic material, vertical deformation portion (83) have towards keep away from arch supporting part (831) of bottom plate (7) one side bending, horizontal fixed part (81) link to each other with bottom plate (7) one end, bottom plate (7) other end be equipped with mount pad (1), mount pad (1) go up the activity and be equipped with regulation seat (2) that link to each other with horizontal movable part (82), just mount pad (1) and regulation seat (2) between be equipped with and enable to adjust seat (2) along mount pad (1) axial reciprocating motion The transverse movable part (82) is driven to approach or depart from the up-and-down adjustable locking mechanism of the transverse fixed part (81).

2. The control mechanism of the adjustable back and head rest according to claim 1, wherein the number of the longitudinal deformation parts (83) is one, the longitudinal deformation parts (83) are arc-shaped plate-shaped, and two ends of the longitudinal deformation parts (83) are respectively connected with the middle part of the transverse fixing part (81) and the middle part of the transverse moving part (82).

3. The control mechanism of adjustable lumbar support and headrest front and back according to claim 1, characterized in that the number of the longitudinal deformation portions (83) is two, two ends of each longitudinal deformation portion (83) are respectively connected with the end of the transverse fixing portion (81) and the end of the transverse moving portion (82), the transverse fixing portion (81), the transverse moving portion (82) and the longitudinal deformation portion (83) are circumferentially enclosed to form a frame-shaped structure, and at least one of the mounting seat (1) and the adjusting seat (2) is located in the frame-shaped structure.

4. The control mechanism of adjustable back and head rest according to claim 3, wherein the horizontal fixing portion (81), the horizontal moving portion (82) and the vertical deformation portion (83) are integrally formed, the supporting framework (8) is rectangular frame-shaped or rectangular frame-shaped, and the supporting framework (8) is formed by bending an elastic wire for multiple times.

5. The adjustable lumbar support and headrest front and back control mechanism as claimed in claim 1, 2, 3 or 4, wherein the upper and lower adjustable locking mechanism comprises a circulating type lifting adjusting mechanism (3) arranged between an adjusting seat (2) and a mounting seat (1), the mounting seat (1) is of a flat structure and is formed by connecting a first mounting plate (11) and a second mounting plate (12) which are vertically arranged in parallel through a detachable structure (4), a vertically arranged sliding channel (13) is formed between the first mounting plate (11) and the second mounting plate (12), the adjusting seat (2) is movably arranged in the sliding channel (13) in a penetrating manner, two ends of the adjusting seat (2) extend to the outside of the sliding channel (13) respectively, the adjusting seat (2) is transversely arranged and perpendicular to the mounting seat (1), and the circulating type lifting adjusting mechanism (3) is arranged between the first mounting plate (11) and the adjusting seat (2) or between the second mounting plate (12) and the adjusting seat (2) Between festival seat (2), regulation seat (2) one side and first mounting panel (11) between be equipped with first vertical direction subassembly (5), be equipped with second vertical direction subassembly (6) between opposite side and second mounting panel (12).

6. The control mechanism of the adjustable lumbar support and headrest front and back as claimed in claim 5, wherein the first vertical guiding assembly (5) comprises a plurality of guiding ribs (51) vertically arranged on one side of the adjusting seat (2) close to the first mounting plate (11), a plurality of guiding sliding grooves (52) axially extending along the first mounting plate (11) and corresponding to the guiding ribs (51) are arranged on one side of the first mounting plate (11), and the guiding ribs (51) are slidably connected with the guiding sliding grooves (52); first mounting panel (11) one side be equipped with a plurality of groups direction protruding muscle group in proper order, each group direction protruding muscle group all has two direction protruding muscle bodies (53), just direction spout (52) form between direction protruding muscle bodies (53).

7. The control mechanism of the adjustable lumbar support and the headrest front and back as claimed in claim 5, wherein the second vertical guide assembly (6) comprises a guide boss (61) which is arranged on one side of the adjusting seat (2) close to the second mounting plate (12) and extends towards the second mounting plate (12), boss sliding strips (62) which exceed the guide boss (61) are respectively arranged on two sides of the guide boss (61), an inwardly recessed rectangular recessed portion (63) is arranged on one side of the second mounting plate (12), a rectangular frame (64) is arranged on the circumferential outer side of the rectangular recessed portion (63), and two sides of the rectangular frame (64) are respectively connected with the boss sliding strips (62) in a sliding manner; the vertical direction subassembly of second (6) still including setting up respectively in second mounting panel (12) both sides and along second mounting panel (12) axial extension's direction extension (65), direction extension (65) bar guide way (66) that axial extension set up have, regulation seat (2) be located the both ends in sliding channel (13) outside and have slide setting pedestal sliding block (67) in bar guide way (66) respectively, direction extension (65) keep away from one side of adjusting seat (2) and be equipped with respectively and link to each other and with pedestal sliding block (67) and with spacing preforming (68) that direction extension (65) counterbalance leaned on.

8. The control mechanism of adjustable lumbar support and headrest front and back according to claim 7, characterized in that, said first mounting plate (11) and said second mounting plate (12) are both in the shape of rectangular plates with equal width and equal length, one side both ends of said first mounting plate (11) close to said second mounting plate (12) are respectively provided with a plate extension portion (14) extending towards said second mounting plate (12), and said plate extension portion (14) is abutted against the outer side of one end of said second mounting plate (12) to form a sliding channel (13) between said first mounting plate (11) and said second mounting plate (12), and said detachable structure (4) is disposed between said plate extension portion (14) and said second mounting plate (12).

9. The control mechanism of the adjustable waist rest and the adjustable headrest front and back as claimed in claim 5, wherein the mounting seat (1) is located at the circumferential inner side of the supporting framework (8), the arched supporting portions (831) on the two longitudinal deformation portions (83) are arranged correspondingly to each other and located at two sides of the mounting seat (1), and two ends of the adjusting seat (2) located at the outer side of the sliding channel (13) are connected with the transverse movable portion (82) through the movable portion mounting plate (9) located at the outer side of the mounting seat (1).

10. The control mechanism of the adjustable lumbar support and headrest as claimed in claim 9, wherein a plurality of fixing portion mounting seats (71) are transversely and sequentially arranged at one end of the base plate (7), the transverse fixing portions (81) are respectively provided with a bending fixing portion (72) which is bent towards the base plate (7) and connected with the fixing portion mounting seats (71), a transversely arranged threading cylinder (91) is arranged at one end of the movable portion mounting plate (9) far away from the transverse fixing portion (81), and the transverse movable portion (82) is fixedly or rotatably arranged in the threading cylinder (91).

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