CN110353431A - A kind of seat - Google Patents

Abstract

The present invention relates to a kind of seats, include handrail, the chair back, seat and chairback brace, chairback brace is rigid, and slot, slot open upper end are equipped in chairback brace；Chair back lower end two sides respectively have an inserted link, are hollow formation cavity in inserted link, and insertion has the guide rail of rack gear in the cavity, and card slot is formed on rack gear, and inserted link side is equipped with first v notch v for exposing rack gear and card slot；Inserted link is inserted in the slot of chairback brace, is correspondingly arranged on Article 2 v notch v with first v notch v on chairback brace side；Handrail rear portion has a sliding block, and transition part is connected between sliding block and handrail, and transition part width is less than slider width, and sliding block is caught in guide rail and is slidably matched with guide rail, and handrail is located at outside chairback brace, and transition part is across first, second v notch v.Chairback brace not only provides support to the chair back, while also playing supporting role to handrail；Handrail does not have to occupy the installation site at seat cushion, to keep whole chair structure simpler.

Description

A kind of seat

Technical field

The present invention relates to thing to sit on field, in particular to a kind of seat.

Background technique

Traditional armrest is generally fixed, i.e., its mounting height and installation site are just solid when seat dispatches from the factory Fixed assembly is reserved, and user's later period can not be changed；Traditional chair back is also to use in this way, be all fixed chair back moulding Person voluntarily cannot replace the chair back according to season, and for example net back uses more in summer, but in winter, people prefer using sponge The chair back of quality, then can not then accomplish arbitrarily to replace according to present.

For armrest, since different user's figures is different, such as tallish user may think handle Armrest positions improve some just obtain and more comfortably take a seat experience；And the lower user of stature may want armrest positions to reduce To being suitable for position that it takes a seat；Therefore previous armrest can not meet, and therefore, some producers, which respectively have developed, has lifting The handrail of adjusting；Such as Patent No.: a kind of 201720641365.1 seats with handrail elevation and subsidence regulating device being related to, for another example Patent No.: the 201420060929.9 armrest lifting adjustment structures being related to, Patent No. for another example: 200920271123.3 Chair armrest lifting device being related to, etc..

These handrails are all installed in the middle position at left and right sides of seat cushion, and lean on changing for handrail internal structure Become, lift adjustment is achieved the purpose that come the height of adjustable handrail itself by control switch；The common feature of these seats is, Handrail is all installed at left and right sides of seat cushion, occupies the certain installation site of seat cushion；Furthermore in fact, pass through handrail internal junction Structure variation adjusting height of armrests is unfavorable for handrail and develops towards compact direction so that handrail internal structure is complex.

Summary of the invention

The present invention overcomes the deficiencies in the presence of the above-mentioned prior art, provide a kind of seat, the Chair back and chair Back braces are split settings, therefore can replace different chair back moulding according to the needs of use；It further says, handrail is along the chair back Adjusting is slided up and down at bracket using height, it does not have to be installed on seat cushion, which is arranged included sliding block, it can pass through cunning Block is slidably matched with the guide rail being arranged at chairback brace, realizes the purpose of lift adjustment, enables a user to according to itself feelings Condition is by handle adjusting to suitable location；Again specifically, which does not have to installation on cushion, therefore, has vacateed seat cushion two The position of side, and handrail is conducive to compact design.

The technical scheme of the present invention is realized as follows:

A kind of seat includes that handrail, the chair back, seat and the chairback brace positioned at both sides of seat, chairback brace are higher by seat Setting, the chairback brace is rigid, and slot, slot open upper end are equipped in chairback brace；Under the chair back End two sides respectively come with a root cutting bar, are one cavity of hollow formation in inserted link, insertion has the guide rail of rack gear, rack gear in the cavity On form card slot between adjacent tooth two-by-two, inserted link side is equipped with first v notch v for exposing guide rail inner rack and card slot；It inserts Bar is from top to bottom inserted in the slot of chairback brace, is correspondingly arranged on second with first v notch v on chairback brace side V notch v；Handrail rear portion has a longitudinally disposed sliding block, transition part is connected between sliding block and handrail, transition part width is small In slider width, sliding block is caught in guide rail and is slidably matched with guide rail, and handrail is located at outside chairback brace, transition part across first, Article 2 v notch v.

Preferably, being additionally provided with the insert port communicated with cavity on inserted link side, insert port and first v notch v are on edge Inserted link circumferential direction is arranged in a staggered manner, and guide rail is inserted into cavity from insert port；After inserted link is inserted into the slot of chairback brace, insert port It is blocked by slot inner wall.The setting of insert port is put into inserted link cavity convenient for guide rail, after guide rail is put into inserted link, inserted link insertion In the slot of chairback brace, insert port is blocked, and guide rail is avoided to be detached from inserted link.

Preferably, the guide rail along thickness direction two layers inside and outside being divided into, rack gear is embedded the internal layer in guide rail On, the sliding block is slidably connected after being inserted into guide rail outer layer with guide rail；It is also loaded on sliding block perpendicular to sliding block sliding surface Locating rod, the positioning club head and card slot are mating.In unlock, sliding block and the guide rail of handrail are slidably matched, real The lift adjustment of existing armrest positions club head and corresponding card slot is mating, realization is helped when corresponding position is arrived in adjusting Hand locking.

Preferably, the handrail includes lifting button assembly and the support base that is laterally arranged, the lifting is pressed Button assembly includes a hollow lifting button bracket, and sliding block is connected with lifting button bracket by transition part, in lifting button branch Elevating control button and reset spring are equipped in frame, locating rod is also disposed in lifting button bracket, elevating control button with The connection of lifting button holder pivots, and the press section of elevating control button is leant out from the indentation, there of lifting button stent side portion, Caulking groove that is vertical and penetrating through sliding block is equipped in lifting button bracket, locating rod is slidably matched in caulking groove and with caulking groove, positions Bar in response to elevating control button rotation and make position club head retract or be exposed to inside and outside sliding block；It is equipped with and is used in support base The cavity of lifting button assembly is accommodated, support base has a longitudinally disposed end side portion, and end side portion, which is equipped with, leads to the cavity The first opening, lifting button assembly enters in cavity from the first opening and is fixed in support base, and the sliding block is exposed to First opening is outer；The indentation, there that lifting button stent side portion is corresponded on support base is equipped with the second opening, elevating control button The second opening is exposed at press section.The armrest is provided with independent lifting button assembly, is convenient for modularized production, sliding block It is arranged on the lifting button assembly, it can be slidably matched in order to height adjustment, together with the mounted guide rail of seat When lean out to cooperate with corresponding card slot further through locating rod when stationary and realize locking, clever structure is easy to control.

Preferably, original state, positioning club head stretches out caulking groove and is exposed to outside sliding block；Elevating control button is by outer When power presses, locating rod in response to elevating control button pressing and make to position club head and retract in caulking groove, pressing is fixed after disappearing Position bar, elevating control button reset under action of reset spring.Only when pressing elevating control button, positioning club head contracting It returns, in favor of release slider.

Preferably, elevating control button also has a rotation section and a driving portion, the rotation section and lifting button Holder pivots connection, the driving portion have a driving lever, and locating rod tail portion is equipped with and stirs slot, and driving lever, which is inserted in, to be stirred in slot；It dials Bar with the cooperation of stirring slot so that driving lever from the one end for stirring slot is moved to the other end when elevating control button rotates, and drive it is fixed Position bar moves in and out；And action of reset spring is in locating rod or elevating control button.It is rotated and is driven using elevating control button Driving lever is mobile, and driving lever drives locating rod to move forward and backward along caulking groove along the component of locating rod length direction, reset spring lifting control Deformation is generated when button actions processed, and restores deformation when pressing force disappears, and the reseting elasticity of generation drives elevating control button And locating rod restores original state.

Preferably, reset spring is pressure spring, one end of reset spring is butted on lifting button rack inner wall, reset spring The other end be connected on the driving portion.The compression reseting spring when compression of elevating control button inwardly rotates, makes its compression Deformation generates reseting elasticity, and when pressing force disappears, elevating control button resets under reseting elasticity effect.

Preferably, the lifting button bracket is fixedly connected by screw with support base.Lifting button bracket is put into After cavity, installation only can be realized by one or two screws and fix, it is very convenient.

Preferably, the sliding block is made of metal, sliding block two sides are embedded with bushing made of plastic material, described Bushing is in contact with guide rail outer layer inner wall.The friction generated between metal when bushing can eliminate sliding and sound make sliding more It is smooth, and there is no sound.

Preferably, the bushing is POM material.

It is using design starting point of the invention, theory and the beneficial effect of above-mentioned technical proposal:

Present invention employs such design, the chair back is seperated design with chairback brace, the chair back is changed to different Moulding, and it is mating with chairback brace in assembling；Meanwhile also built-in guide rail in chair back inserted link, and make handrail can be with It is slided up and down along chairback brace, with adjustable handrail height；Chairback brace not only provides support to the chair back, while also rising to handrail Supporting role has been arrived, has been killed two birds with one stone；Handrail does not have to occupy the installation site at seat cushion, to keep whole chair structure simpler, whole It is clean.

It further says, which is provided with independent lifting button assembly, is convenient for modularized production, which presses The sliding block of button assembly setting, it can cooperate with sliding up and down at the chairback brace of seat in order to height adjustment, while quiet It leans out to cooperate with corresponding card slot further through locating rod when only motionless and realizes locking, clever structure is easy to control.

Detailed description of the invention

Fig. 1 is the schematic perspective view after lifting button assembly in embodiment of the invention is split；

Fig. 2 is the schematic perspective view after the combination of lifting button assembly in embodiment of the invention；

Fig. 3 is the enlarged drawing in the portion a in Fig. 1；

Fig. 4 is the enlarged drawing in the portion b in Fig. 2；

Fig. 5 is present invention lifting button assembly and the schematic perspective view after support base fractionation in embodiment；

Fig. 6 is the enlarged drawing in the portion c in Fig. 5；

Fig. 7 is the present invention indentation, there of support base side and the solid being placed on lifting button branch in indentation, there in embodiment Structural schematic diagram；

Fig. 8 is schematic perspective view of the present invention after lifting button assembly is combined with support base in embodiment；

Fig. 9 is schematic perspective view when lifting button assembly in embodiment of the invention is set in support base cavity；

Figure 10 is schematic perspective view one of the present invention after elevating control button is combined with reset spring in embodiment；

Figure 11 is schematic perspective view two of the present invention after elevating control button is combined with reset spring in embodiment；

Figure 12 is present invention guide rail and schematic perspective view when assembling racks in embodiment；

Figure 13 is present invention guide rail and the schematic perspective view after assembling racks in embodiment；

Figure 14 is the enlarged drawing in the portion d in Figure 12；

Figure 15 is the stereochemical structure signal after guide rail in embodiment, lifting button assembly and support base three of the invention split Figure；

Figure 16 is the stereochemical structure signal after guide rail in embodiment, lifting button assembly and support base three of the invention combine Figure；

Figure 17 is the schematic perspective view of armrest lifting regulating mechanism in embodiment of the invention；

Figure 18 is the present invention chair back and the schematic perspective view one after chairback brace fractionation in embodiment；

Figure 19 is the present invention chair back and the schematic perspective view two after chairback brace fractionation in embodiment；

Figure 20 is the enlarged drawing in the portion e in Figure 19；

Figure 21 is the schematic perspective view of chairback brace in embodiment of the invention；

Figure 22 is the schematic perspective view of inserted link in embodiment of the invention；

Figure 23 is the stereochemical structure partial schematic diagram of chairback brace in embodiment of the invention.

Each appended drawing reference are as follows: lifting button assembly 1；Support base 2；Lifting button bracket 3；Sliding block 4；Locating rod 5；Lifting control Button 6 processed；Reset spring 7；Cavity 8；End side portion 9；First opening 10；Screw 11；Caulking groove 12；Rotation section 13；Driving portion 14；It lacks Mouth 15；Second opening 16；Press section 17；Driving lever 18；Stir slot 19；Guide rail 20；Handrail 21；Internal layer 22；Outer layer 23；Rack gear 24； Card slot 25；Bushing 26；The chair back 27；Seat 28；Chairback brace 29；Inserted link 30；Slot 31；First v notch v 32；Second bar shaped Notch 33；Mounting groove 34；Positioning pin 35；Mounting post 36；C-shaped pin 37；Pre-manufactured hole 38；Cavity 39；Insert port 40；Partition 41； One one word notch 42；2nd 1 word notch 43；Transition part 44.

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

In the description of the present invention, term "at least one" refers to one or more, unless otherwise restricted clearly.Art Language " first ", " second ", " third " etc. are only used for the purpose of description, are not understood to indicate or imply relative importance.

The present invention about the narration in orientation is described under normal use situation based on handrail and seat.

A specific embodiment of the invention is as follows:

Embodiment: as shown in figs. 1-11, present invention firstly provides a kind of armrest, the lifting button including being independently arranged is total At 1 and laterally the support base 2 that is arranged, the lifting button assembly 1 include a hollow lifting button bracket 3, and lifting is pressed The front end of button bracket 3 has a sliding block 4, and sliding block 4 is grown on a transition part 44, and 4 width of sliding block is greater than 44 width of transition part, sliding Block 4, transition part 44 and lifting button bracket 3 are integrated setting, are that metal material is made, and lifting button bracket 3 is one side A wide range of open shell, is equipped with locating rod 5, elevating control button 6 and reset spring 7 in lifting button bracket 3.

If Fig. 5-9 shows how lifting button bracket 3 is assembled together with support base 2, it is equipped in support base 2 For accommodating the cavity 8 of lifting button assembly 1, support base 2 has a longitudinally disposed end side portion 9, and end side portion 9, which is equipped with, to be led to First opening 10 of the cavity 8, lifting button assembly 1 enter from the first opening 10 in cavity 8 and by two screws 11 It is fixedly connected in support base 2, the screw 11 is passed through from the side of lifting button assembly 1 and the bottom of support base 2 respectively will The two locking；

After lifting button bracket 3 and support base 2 are assembled together, sliding block 4 and section transitions portion 44 are exposed to the first opening 10 Outside；Sliding block 4 and other carrier bodies of seat are slidably matched in order to height adjustment.

Be equipped with the caulking groove 12 of perforation sliding block 4 in lifting button bracket 3, locating rod 5 in the caulking groove 12 and with caulking groove 12 Be slidably matched, locating rod 5 in response to elevating control button 6 rotation and make 5 head of locating rod retract or be exposed in sliding block 4 Outside；Elevating control button 6 is arranged by 5 tail portion of locating rod, and elevating control button 6 is arranged by 5 tail portion of locating rod.

As shown in Fig. 3-7,10,11, elevating control button 6 is substantially in the triangular structure of pie, and the elevating control is pressed Button 6 has a rotation section 13, a driving portion 14 and a press section 17, and rotation section 13, driving portion 14 and press section 17 exist respectively In 6 three angular positions of elevating control button, rotation section 13, driving portion 14 are relatively distant from respectively, set close to 5 tail portion of locating rod It sets, the rotation section 13 is rotatablely connected with lifting button bracket 3 by positioning pin 35, corresponds to lifting button on support base 2 It is equipped with the second opening 16 at the notch 15 of 3 side of bracket, the press section 17 of elevating control button 6 is from 3 side of lifting button bracket Notch 15 at lean out and be exposed to the second opening 16.

The driving portion 14 has a driving lever 18, and the driving lever 18 is approximately perpendicular to the setting of driving portion 14, locating rod 5 Tail portion is equipped with and stirs slot 19, and driving lever 18, which is inserted in, to be stirred in slot 19；Driving lever 18 and the cooperation of slot 19 is stirred so that elevating control button 6 Driving lever 18 is moved to the other end from the one end for stirring slot 19 when rotation, and locating rod 5 is driven to move in and out；In the present embodiment, dial Dynamic slot 19 is tilted upward setting, and stirs 19 upper end of slot and relatively stir 19 lower end of slot closer to the setting of 5 head of locating rod, natural shape Under state, driving lever 18, which is in, stirs 19 lower end of slot, and when 17 depressed effect of press section, driving lever 18 is moved to by stirring 19 lower end of slot Upper end, to drive locating rod 5 to contract.

As shown in Fig. 1,2,10,11, and reset spring 7 acts on locating rod 5 or elevating control button 6；The reset Spring 7 is pressure spring, and one end of reset spring 7 is butted on 3 inner wall of lifting button bracket, and the other end of reset spring 7 is connected to drive In dynamic portion 14；Specifically, driving portion 14 is equipped with mounting groove 34, and the other end of reset spring 7 is in mounting groove 34；In this way It is avoided that reset spring 7 deviates from driving portion 14.It further says, in order to be positioned to reset spring 7, in lifting button bracket 3 inner walls are equipped with mounting post 36, and mounting post 36 also is provided in mounting groove 34, and the both ends of reset spring 7 are respectively covered pacifies at two It fills on column 36.

The compression reseting spring 7 when elevating control button 6 is pressurized inside rotation makes its compressive deformation generate reseting elasticity, When pressing force disappears, elevating control button 6 resets under reseting elasticity effect.

Specifically used process are as follows: when initial, reset spring 7 is in nature extended state, and caulking groove 12 is stretched out on 5 head of locating rod And it is exposed to outside sliding block 4；When needing that locating rod 5 is made to bounce back, finger presses press section 17, and locating rod 5 is pressed in response to elevating control The pressing of button 6 simultaneously retracts 5 head of locating rod in caulking groove 12, and locating rod 5, elevating control button 6 are resetting bullet after pressing disappears The effect of spring 7 is lower to be resetted.

As shown in Figure 12-23, the present invention after and provide a kind of armrest lifting regulating mechanism, the armrest liter Drop regulating mechanism be seat component part, the lifting regulating mechanism by unlock when, by the sliding block 4 of armrest 21 with lead Rail 20 is slidably matched, and realizes the lift adjustment of armrest 21, when adjusting to corresponding position, 5 head of locating rod with it is corresponding Card slot 25 is mating, realizes that handrail 21 locks.

Specific: as shown in Fig. 5,8,12-16, the armrest lifting regulating mechanism includes guide rail 20 and above-mentioned seat Handrail 21, the guide rail 20 are being divided into inside and outside layer 22,23 along thickness direction, are fixing in the internal layer 22 of guide rail 20 embedding Equipped with rack gear 24, card slot 25 is formed on rack gear 24 between tooth adjacent two-by-two；Specifically, after rack gear 24 slides into internal layer 22, tooth The C-shaped pin 37 that internal layer 22 is crossed each by one in 24 both ends of item limits, limitation 24 both ends of rack gear abjection guide rail 20, and C-shaped Pin 37 extends out to form interference fit after squeezing into the pre-manufactured hole 38 of internal layer 22, so that it does not fall out pre-manufactured hole 38；Inside and outside layer 22, unclosed and partition 41 with the one one word notch 42 is formed between 23 to expose card slot 25.

The sliding block 4 is slidably connected after being inserted into the outer layer 23 of guide rail 20 with guide rail 20,5 head of locating rod It is mating with the card slot 25 of corresponding position.

Furtherly, the sliding block 4 is made of metal, the friction generated between metal when in order to eliminate sliding and sound, Make to slide more smoothly, and there is no sound, be embedded with the bushing 26 of POM material in 4 two sides of sliding block, the bushing 26 with lead 20 outer layer of rail, 23 inner wall is in contact.

Further say, as shown in Figure 17-23, the present invention has been still further provided in a kind of seat, it include the chair back 27, Seat 28 and chairback brace 29 positioned at 28 two sides of seat, 29 lower end of chairback brace can be fixedly linked with seat 28；It can also To be connected with the reclining chassis of 28 lower section of seat, specifically, it may be coupled on the wraping plate on reclining chassis, swing back in human body When, chairback brace 29 swings back therewith and wraping plate is driven to rotate, and provides reseting elasticity by reclining chassis.

27 lower end of the chair back has two root cutting bars 30, and the chairback brace 29 is rigid, and in chairback brace Slot 31 is equipped in 29, inserted link 30 is inserted in slot 31, and 31 open upper end of slot is to facilitate inserted link 30 to be inserted into.It is such to set Meter, allows the chair back 27 to be changed to different moulding, and handrail 21 is slidably connected with chairback brace 29, chairback brace 29 Support not only is provided to the chair back 27, while supporting role also is played to handrail 21, whole chair structure is simpler, clean and tidy.

Fixedly embedded in inserted link 30 for hollow and guide rail 20 in inserted link 30,30 one side of inserted link, which is equipped with, to be exposed in guide rail 20 First v notch v 32 of rack gear 24；Specifically, a cavity 39 is equipped in inserted link 30 to accommodate guide rail 20, inserted link 30 is another Side is equipped with the insert port 40 communicated with cavity 39, and guide rail 20 is inserted into cavity 39 from insert port 40；Inserted link 30 is rectangular Shape, and first v notch v 32 is arranged in a staggered manner with insert port 40 along 30 circumferential direction of inserted link, the two is located at different sides On.

It is equipped with the two one word notch 43 opposite with the one one word notch 42, on 20 side of guide rail so as to the insertion of sliding block 4 And it is slidably matched；After guide rail 20 is inserted into cavity 39, the 2nd 1 word notch 43 and first article of v notch v 32 are opposite, the first bar shaped The width of notch 32 is less than 20 width of guide rail, so guide rail 20 will not be deviate from from first v notch v 32.

Article 2 v notch v 33 is correspondingly arranged on first v notch v 32 on 29 side of chairback brace, the second bar shaped lacks Mouth 33 is communicated with slot 31, and 33 width of Article 2 v notch v is greater than first 32 width of v notch v, in favor of the sliding of sliding block 4.

Finally, sliding block 4 slides up and down cooperation along the outer layer 23 of guide rail 20, and transition part 44 is lacked across the first, second bar shaped Mouth 32,33；Make the end side portion 9 of support base 2 be unlikely to be close to inserted link 30, both ensure that beauty, in turn ensures that sliding is smooth.

Claims (10)

1. a kind of seat, it is characterised in that: include handrail, the chair back, seat and the chairback brace positioned at both sides of seat, the chair back Bracket is higher by seat setting, and the chairback brace is rigid, and slot, slot open upper end are equipped in chairback brace； The chair back lower end two sides respectively come with a root cutting bar, are one cavity of hollow formation in inserted link, are embedded in the cavity with teeth The guide rail of item, forms card slot on rack gear between tooth adjacent two-by-two, inserted link side, which is equipped with, exposes the of guide rail inner rack and card slot One v notch v；Inserted link is from top to bottom inserted in the slot of chairback brace, on chairback brace side with first v notch v It is correspondingly arranged on Article 2 v notch v；Handrail rear portion has a longitudinally disposed sliding block, and transition is formed between sliding block and handrail Portion, transition part width are less than slider width, and sliding block is caught in guide rail and is slidably matched with guide rail, and handrail is located at outside chairback brace, Transition part is across first, second v notch v.

2. a kind of seat according to claim 1, it is characterised in that: be additionally provided with the insertion communicated with cavity on inserted link side Mouthful, insert port is arranged in a staggered manner with first v notch v along inserted link circumferential direction, and guide rail is inserted into cavity from insert port；Inserted link After being inserted into the slot of chairback brace, insert port is blocked by slot inner wall.

3. a kind of seat according to claim 1, it is characterised in that: the guide rail along thickness direction within being divided into Outer two layers, rack gear is embedded on the internal layer of guide rail, and the sliding block is slidably connected after being inserted into guide rail outer layer with guide rail；Sliding block On be also loaded with locating rod perpendicular to sliding block sliding surface, the positioning club head and card slot are mating.

4. a kind of seat according to claim 3, it is characterised in that: the handrail includes lifting button assembly and cross To the support base of setting, the lifting button assembly includes a hollow lifting button bracket, and sliding block, transition part and lifting are pressed Button bracket is integrated setting, and elevating control button and reset spring are equipped in lifting button bracket, and locating rod is also disposed at In lifting button bracket, elevating control button is connect with lifting button holder pivots, and the press section of elevating control button is from liter The indentation, there of drop actuator bracket side is leant out, and caulking groove that is vertical and penetrating through sliding block is equipped in lifting button bracket, and locating rod is embedding Be slidably matched in caulking groove and with caulking groove, locating rod in response to elevating control button rotation and make position club head retract or dew Inside and outside sliding block；The cavity for accommodating lifting button assembly is equipped in support base, support base has a longitudinally disposed end Side, end side portion are equipped with the first opening for leading to the cavity, and lifting button assembly enters in cavity simultaneously from the first opening It is fixed in support base, the sliding block is exposed to outside the first opening；The notch of lifting button stent side portion is corresponded on support base Place is equipped with the second opening, is exposed to the second opening at the press section of elevating control button.

5. a kind of seat according to claim 4, it is characterised in that: original state, positioning club head stretch out caulking groove and reveal Outside for sliding block；When elevating control button is by pressed by external force, locating rod in response to elevating control button pressing and make to position Club head retracts in caulking groove, and locating rod, elevating control button reset under action of reset spring after pressing disappears.

6. a kind of seat according to claim 4, it is characterised in that: elevating control button also has a rotation section and a drive Dynamic portion, the rotation section are connect with lifting button holder pivots, and the driving portion has a driving lever, and locating rod tail portion is equipped with Slot is stirred, driving lever, which is inserted in, to be stirred in slot；Driving lever is with the cooperation for stirring slot so that driving lever is from stirring slot when elevating control button rotates One end be moved to the other end, and locating rod is driven to move in and out；And action of reset spring is in locating rod or elevating control button On.

7. a kind of seat according to claim 6, it is characterised in that: reset spring is pressure spring, and one end of reset spring is supported In on lifting button rack inner wall, the other end of reset spring is connected on the driving portion.

8. a kind of seat according to claim 4, it is characterised in that: the lifting button bracket passes through screw and support Seat is fixedly connected.

9. armrest lifting regulating mechanism according to claim 3, it is characterised in that: the sliding block is made of metal At sliding block two sides are embedded with bushing made of plastic material, and the bushing is in contact with guide rail outer layer inner wall.

10. armrest lifting regulating mechanism according to claim 9, it is characterised in that: the bushing is POM material.