CN2781918Y - Armrest of chair having regulating function - Google Patents

Abstract

The utility model relates to an armrest of a chair with a regulating function which comprises a thimble of an armrest, a lifting inner rod of the armrest, a linking member for pulling a lock which is assembled on the lifting inner rod of the armrest, a sheathing pin of an inner rod, a pillar of an outer sleeve of a pin and a lapped seat of a seat plate, wherein the lapped seat of the seat plate is lapped with the other end of the seat plate of the chair; the pillar of the outer sleeve of the pin is embedded into a looping which is at the other end of the lapped seat of the seat plate and is sheathed into the sheathing pin of the inner rod; an elastic clamp positioning mechanism which is provided with a plurality of sections of level angles is arranged between the sheathing pin of the inner rod and the pillar of the outer sleeve of the pin; the sheathing pin of the inner rod is sheathed into the lifting straight rod position of the lifting inner rod of the armrest. The lifting-moving range which is corresponding to the sheathing pin of the inner rod of a lock block of the linking member for pulling the lock is provided with a row of dentoid buckling holes of a buckling lock of the lock block; the top end of the lifting inner rod of the armrest is fixedly connected with the inner roof wall of the thimble of the armrest; a trigger of the linking member for pulling the lock is higher than the sheathing pin of the inner rod and the pillar of the outer sleeve of the pin; the trigger is vertically threaded out the corresponding position of the thimble of the armrest in a bending way. The trigger is pulled by a finger to release the locking of the lock block, the thimble of the armrest is raised or lowered, the relative position between the thimble of the armrest and the pillar of the outer sleeve of the pin is adjusted to the needed height of the armrest, and horizontal offset direction is adjusted through the elastic clamp positioning mechanism.

Description

Has the armrests of adjusting function

One, technical field

The utility model relates to chair, relates in particular to a kind of armrests and has multinomial adjustment functions such as lifting and horizontal-shift direction, armrests can be adjusted more meet the armrests of adjusting function that has that occupant individual curved boom is rested the head on the comfortable attitude of elbow

Two, background technology

Existing seat with armrests can not only make and take the chair person's buttocks can be sat the rest of having a rest, and makes things convenient for elbow to be put on the armrests to shelve, and both hands also can be arrived loosen and has a rest.

But, everyone build all is not quite similar, though build statistical analysis in addition at same national people, draw up its national normal man's body ratio reluctantly, height, data such as body weight, it also is a kind of comprehensive representative data, thereby, there is the functional seat of a lot of emphasis ergonomics to occur in recent years, so that masses can both ride comfort, its solution, add in chair body or chair feet many places exactly and much be convenient to the occupant and pull and adjust the guiding mechanism that changes, make the chair body can be because of occupant's self feeling for taking, adjust the height that changes chair, the elevation angle of chair cushion, the pliabilitys of the chair back etc. reach to adjust and meet every occupant, can have to use the comfortable pleasant sensation that ergonomics is taken.

Yet, existing chair development so far, do not reach fully yet every occupant, provide to meet and use the comfort requirement that ergonomics is taken, the other handrail of its seat remains the fixedly body that single non-adjustable rectification becomes size, its structure is used and is also still had following shortcoming: 1, though advanced at present seat, it adjusts function, made occupant's buttocks and the body back of the body can sit comfortablely, ride height is suitable, but duplex one is put on the handrail, still might be because of the dimension scale relation of individual body and limbs different, curved elbow height degree is different and seem that to put elbow awkward, even some people is slightly long because of arm, and desire props up elbow on the handrail fully, when loosening arm and having a rest temporarily, cause shoulder to be supportted on the contrary and alarm and unsound painstakingly posture.2, the occupant has a rest when putting both hands taking, the both hands elbow is not parallel unalterablely horizontal stretching, make handrail can make occupant's elbow one touch handrail arm body, just experiencing the both hands elbow must parallelly rest on the handrail of corresponding sides, just can be subjected to the handrail bracketing and have a rest, but, almost everyone still has not independently side and turns round little arm of waving, the custom of elbow limbs, for example body is swung back dorsad, when opening wide ambition, naturally have a stand both hands arm more, elbow, or concentrate on polymerization when thinking, situation about can be naturally from the both hands elbow to the palm front end contracting or the like to body centre's folder, in these cases, handrail but can't correspondence be made corresponding horizontal and is turned variation, makes handrail not have the effect that complete bracketing elbow is had a rest.

Because above-mentioned all use defectives that the fixed structure of existing armrests causes, the utility model creator active research is improved, and through repetition test, designs the utility model finally.

Three, utility model content

Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and a kind of armrests of adjusting function that has is provided, by the handrail thimble, bar in the handrail lifting, be mounted in the handrail lifting and pull the lock moving part on the bar, interior bar sheathing, sheath overcoat pilum and seat overlap joint seat constitute, can stir trigger by finger, discharge the locking of lock dog, raise or reduction handrail thimble, adjust to change and determine needed handrail height, convenient every occupant, with handrail adjust to himself experience curved boom put putting of elbow the most comfortable put the height, have the adjustment function of complying with individual curved boom holder elbow height degree difference.

Another purpose of the present utility model is to provide a kind of armrests of adjusting function that has, it can be in the appropriate location between interior bar sheathing and the sheath overcoat pilum, formation has the bullet fastening position mechanism of several sections level angles, play fastening position mechanism by this, reach can about move and change the handrail adjustment and change certain horizontal-shift direction, make every occupant grasp the twisting of corresponding sides handrail arm body leading edge simultaneously, make handrail follow the elbow level to changeing certain angle inwardly or towards the outside, continue to hold occupant's elbow, when making the trickle twisting of limbs, still have elbow arm holder completely to put the effect of having a rest and putting.

The purpose of this utility model is realized by following technical scheme.

The utlity model has the armrests of adjusting function, it is characterized in that: be located at by bar in a handrail thimble, the handrail lifting, one group that pulling bar sheathing in the lock moving part,, a sheath overcoat pilum and the seat overlap joint seat on the bar constitutes in the handrail lifting; The end in addition of seat overlap joint seat overlap joint chair plate, upper vertical is inserted and is stretched sheath overcoat pilum, and what sheath overcoat pilum embedded seat overlap joint seat holds running-on in addition, bar sheathing in being inserted in, appropriate location between interior bar sheathing and sheath overcoat pilum forms the bullet fastening position mechanism with several sections level angles, and interior bar sheathing is inserted in the lifting straight-bar position of bar in the handrail lifting, at interior bar sheathing to should organizing the lock dog lifting moving scope of pulling the lock moving part, formation can be one by one by the tooth row button hole of lock dog padlock; The top affixed handrail thimble inner roof wall of bar in the handrail lifting, what make that the handrail thimble covers that bar, interior bar sheathing and sheath overcoat pilum in the handrail lifting embed seat overlap joint seat holds running-on in addition; The trigger perseverance that this group is pulled the lock moving part exceeds interior bar sheathing and sheath overcoat pilum, and curved hanging down passes the correspondence position of handrail thimble; Constituting thus can be by referring to dial trigger, discharge the locking of lock dog, raise or reduction handrail thimble, the relative position of bar adjustment change and sheath overcoat pilum in the lifting of interlock handrail, thereby reach the handrail height that needs, unclamp trigger again and make the lock dog snap-on fixed, determine to adjust the handrail height of the needs that change to the Kong Weitong of tooth row button hole respective heights, and by playing fastening position mechanism, can about move and change the handrail adjustment and change certain horizontal-shift direction.

Aforesaid have an armrests of adjusting function, and wherein seat overlap joint seat is embedded in a gripper shoe by a shell and constitutes.

Aforesaid armrests with adjustment function, wherein interior bar sheathing is constituted by the first demisheath tube and the second demisheath tube, appropriate location between the first demisheath tube and the sheath overcoat pilum, formation has the bullet fastening position mechanism of several sections level angles, this bullet fastening position mechanism is appropriate location on sheath overcoat pilum, same horizontally-arranged is offered several with appropriate intervals and is played hole clipping, and be parallel to the appropriate location that these play hole clipping, offer the spacing translot of a swing angle, the first demisheath tube plays the corresponding horizontal level of hole clipping with these, be embedded an elastic force positioning bead, to horizontal level that should the spacing translot of swing angle, run through the spacing translot of this swing angle and be embedded spacing kelly, the running-on of holding in addition that makes sheath overcoat pilum embed seat overlap joint seat is inserted in this behind bar sheathing, this spacing kelly protrudes out in the spacing translot of swing angle, and the elastic force positioning bead can be in the restriction swing angle scope of the spacing translot coupling of spacing kelly and swing angle, snaps into these and plays the fastening position of being hit by a bullet, a corresponding hole of hole clippings.

Aforesaid armrests with adjustment function, wherein the handrail thimble is provided with the handgrip pad, the handgrip pad inner roof wall of the affixed handrail thimble in top of bar in the handrail lifting.

Aforesaid armrests with adjustment function, wherein the lifting straight-bar position of handrail lifting is that both sides are provided with the straight bar shape that protrudes the wall that hangs down, this lifting straight-bar position insertion end forms one and colludes the hook that mouth makes progress, straight bar shape inner face is near vertical wall appropriate location, both sides, protrude a pair of clip body, straight bar shape central authorities are lower than these clip body appropriate locations and offer a through hole, and straight bar shape central authorities are higher than these clip body appropriate locations, vertical first bolt apertures and second bolt apertures of being convexly equipped with.

Aforesaid have an armrests of adjusting function, wherein this group pull the lock moving part by a trace, a lock dog, several screws and always spring form; Corresponding repeatedly the hanging down by bar in the handrail lifting of this trace body of rod established the position of first bolt apertures and second bolt apertures, offer vertical chute, pass vertical chute by screw respectively, with corresponding first bolt apertures or the second bolt apertures screw lock, this trace closes on the rod end of bar formation hook in the handrail lifting, form corresponding in opposite directions colluding, corresponding in opposite directions collude and hook between, link by straight spring, this trace forms the corresponding in opposite directions end in addition that colludes, the outwards vertical curved trigger of establishing, this trace body of rod closes on the interior bar of handrail lifting and offers the suitable position of through hole, offer the lock dog appearance and move back the hole, and this lock dog appearance is moved back upper end, the hole punching out one-tenth arc jacking block that bar protrudes out in the handrail lifting, this arc jacking block upper end, offer the lock dog portion of pulling and hold batter, the flat axle that can snap in the set clip body of bar in the handrail lifting is stretched out in these lock dog both sides, and the lock dog top is provided with the pulling part of protrusion, bottom vertical stretch out and in the handrail lifting bar offer the protruding nose that through hole stretches into.

Aforesaid armrests with adjustment function, wherein trigger is provided with cap sleeve outward.

Aforesaid have an armrests of adjusting function, and wherein the second demisheath tube be to should organizing the lock dog lifting moving scope of pulling the lock moving part, formation can be one by one by the tooth row button hole of dead bolt padlock.

The beneficial effect that the utlity model has the armrests of adjusting function is: be set to outside its handrail thimble bottom on the sheath overcoat pilum, but do not fix, and this sheath overcoat pilum is by the running-on of handrail thimble lid cover, plug is established bar sheathing in, handrail thimble inner roof wall is bar and bar sheathing in inserting in hanging one lifting fixedly, and in this lifting, be provided with one group on the bar and pull the lock moving part, the trigger perseverance that this group is pulled the lock moving part exceeds interior bar sheathing and sheath overcoat pilum, and curved hanging down passes handrail thimble correspondence position, and this group pull the lock moving part the lock dog perseverance be subjected to the elastic force drawing and be snapped in bar sheathing correspondence position lock, can stir trigger by finger, discharge the locking of lock dog, raise or reduction handrail thimble, bar adjustment change reaches the handrail height of needs with the relative position of sheath overcoat pilum in the lifting of interlock handrail, unclamping trigger again makes the lock dog snap-on fix to interior bar sheathing inner face respective heights position, determine to adjust the needed handrail height that changes, convenient every occupant, with handrail adjust to himself experience curved boom put putting of elbow the most comfortable put the height, allow the occupant enjoy and further meet ergonomics, have the adjustment function of complying with individual curved boom holder elbow height degree difference.This armrests of the utility model with adjustment function, can be in the appropriate location between interior bar sheathing and the sheath overcoat pilum, formation has the bullet fastening position mechanism of several sections level angles, play fastening position mechanism by this, reach can about move and change the handrail adjustment and change certain horizontal-shift direction, make every occupant in spite of oneself side turn round little arm of waving, the limbs custom of elbow, can grasp the twisting of corresponding sides handrail arm body leading edge simultaneously, make handrail follow the elbow level to changeing certain angle inwardly or towards the outside, continue to hold occupant's elbow, when making the trickle twisting of limbs, still have elbow arm holder completely to put the effect of having a rest and putting.

Four, description of drawings

Fig. 1 is the overall structure schematic perspective view that the utlity model has the armrests of adjusting function.

Fig. 2 is the stereochemical structure decomposing schematic representation that the utlity model has the armrests of adjusting function.

Fig. 3 is the interior bar front view of handrail lifting that the utlity model has the armrests of adjusting function.

Fig. 4 the utlity model has pulling in the armrests of adjusting function to lock the moving part structural representation.

Fig. 5 is a V-V line cross-sectional schematic shown in Figure 4.

Fig. 6 is the interior bar sheathing internal structure decomposing schematic representation that the utlity model has the armrests of adjusting function.

Fig. 7 the utlity model has the armrests structure cross-sectional schematic of adjusting function.

Fig. 8 is an adjustment lifting action schematic diagram that the utlity model has the armrests of adjusting function.

Fig. 9 is another adjustment lifting action schematic diagram that the utlity model has the armrests of adjusting function.

Figure 10 is the overall structure schematic perspective view that the utlity model has after the armrests of adjusting function increases.

Critical piece label declaration among the figure: 10 handrail thimbles, 11 handgrip pads, bar in the 20 handrail liftings, 21 lifting straight-bar positions, 22 hooks, 23 clip bodies, 24 clip bodies, 25 clip bodies, 26 clip bodies, 27 through holes, 28 first bolt apertures, 29 second bolt apertures, 30 pull the lock moving part, 31 traces, 32 lock dogs, the flat axle of 32A, the flat axle of 32B, the 32C pulling part, the protruding nose of 32D, 33 screws, 34 screws, 35 straight springs, 36 vertical chutes, 37 vertical chutes, 38 correspondences are colluded, 39 triggers, the 39A cap sleeve, 39B lock dog appearance is moved back the hole, 39C arc jacking block, the 39D lock dog portion of pulling holds batter, bar sheathing in 40,41 first demisheath tubes, 42 second demisheath tubes, 43 elastic force positioning beads, 44 spacing kellies, 45 tooth row button holes, 46 tooth row button holes, 50 sheath overcoat pilums, 60 seats overlap joint seat, 61 shells, 62 gripper shoes, 70 play fastening position mechanism, 71 play hole clipping, 72 play hole clipping, 73 play hole clipping, the spacing translot of 74 swing angles.

Five, the specific embodiment

Consult shown in Figure 1, for the utlity model has the armrests overall structure schematic perspective view of adjusting function, consult shown in Figure 2, be the utility model stereochemical structure decomposing schematic representation, shown in those figure, the utlity model has the armrests of adjusting function as can be known, mainly be mounted in the handrail lifting bar sheathing 40, the sheath overcoat pilum 50 in the lock moving part 30, pulled on the bar, and seat overlap joint seat 60 constitutes by bar 20, in a handrail thimble 10, the handrail lifting; Seat overlap joint seat 60 can be embedded in a gripper shoe 62 and be constituted by a shell 61, and the end in addition of these seat overlap joint seat 60 overlap joint chair seats, upper vertical is inserted and is stretched out sheath overcoat pilum 50, and what sheath overcoat pilum 50 embedded seats overlap joint seat 60 holds running-on in addition, bar sheathing 40 in being inserted in, should can combine by the first demisheath tube 41 and the second demisheath tube 42 by interior bar sheathing 40, the appropriate location that first demisheath tube 41 of this interior bar sheathing 40 and sheath overcoat pilum are 50, formation has the bullet fastening position mechanism 70 of several sections level angles, this mechanism 70 is the appropriate locations on sheath overcoat pilum 50, the suitable spacing position of same horizontally-arranged is offered several and is played hole clipping 71,72,73, and be parallel to these and play hole clipping 71,72, the spacing translot 74 of a swing angle is offered in 73 appropriate location, play hole clipping 71 at the first demisheath tube, 41 corresponding these, 72,73 horizontal level, be embedded an elastic force positioning bead 43, and to horizontal level that should translot 74, run through this translot 74 and be embedded a spacing kelly 44, what make that sheath overcoat pilum 50 embeds seats overlap joint seat 60 holds running-on in addition, after being inserted in this interior bar sheathing 40, this spacing kelly 44 protrudes out in this translot 74, positioning bead 43 can snap into these and play hole clipping 71 in the restriction swing angle scope that this spacing kelly 44 and translot 74 mate, 72, corresponding one plays the hole clipping fastening position of being hit by a bullet in 73.

Interior bar sheathing 40 is inserted in the lifting straight-bar position 21 of bar 20 in the handrail lifting, the inner roof wall of the affixed handrail thimble 10 handgrip pads 11 in top of bar 20 in the handrail lifting, what make that handrail thimble 10 covers that bar 20 in the handrail lifting, interior bar sheathing 40 and sheath overcoat pilum 50 embed seats overlap joint seat 60 holds running-on in addition; The detailed formation of bar 20 in being somebody's turn to do, can consult bar structural front view in the handrail lifting shown in Figure 3 simultaneously, the straight bar shape of the wall that hangs down is protruded at the lifting straight-bar position 21 of bar 20 in being somebody's turn to do for both sides are provided with, this position 21 is inserted front end formation one and is colluded the hook 22 that mouth makes progress, straight bar shape inner face is near the appropriate location of the vertical wall in both sides, protrude a pair of clip body (23 and 24 and 25 and 26), be lower than the appropriate location of these clip bodies 23 and 24 and 25 and 26 in straight bar shape central authorities, offer a through hole 27, and the appropriate location that is higher than these clip bodies 23 and 24 and 25 and 26 in straight bar shape central authorities, vertical first bolt apertures 28 and second bolt apertures 29 of being convexly equipped with, its integrally-built assembling and effect situation, narration in the lump in the back.

Consult Fig. 4, shown in Figure 5, the utility model is provided with one group and pulls lock moving part 30, this pulls lock moving part 30 mainly by a trace 31, one lock dog 32, several screws 33 and 34 reach spring 35 compositions always, these trace 31 bodies of rod forward bar 20 of stating in the handrail lifting that can corresponding change hangs down and establishes the positions of first bolt apertures 28 and second bolt apertures 29, offer vertical chute 36 and 37, pass vertical chute 36 and 37 with screw 33 and 34 respectively, and with corresponding first bolt apertures 28 or second bolt apertures, 29 screw locks, and this trace 31 closes on the rod end of bar 20 formation hooks 22 in the aforementioned handrail lifting, what formation was corresponding in opposite directions colludes 38, corresponding in opposite directions collude 38 and hook 22 between, link mutually by straight spring 35, form corresponding in opposite directions 38 the end in addition that colludes at this trace 31, be provided with the curved trigger 39 that outwards hangs down, this trigger 39 can overcoat or is added cap sleeve 39A in mode such as one-body molded, trace 31 bodies of rod close on the appropriate location of aforementioned through-hole 27, offer the lock dog appearance and move back hole 39B, and 39B upper end punching out in this hole becomes the arc jacking block 39C that bar 20 protrudes out in aforementioned handrail lifting, this arc jacking block 39C offers the upper end lock dog portion of pulling and holds batter 39D, and the flat axle 32A that can snap in the interior bar 20 set clip bodies 23 of aforementioned handrail lifting and 24 and 25 and 26 is stretched out in these lock dog 32 both sides, 32B, and lock dog 32 tops are provided with protrudes pulling part 32C, and the bottom drawdown is provided with in aforementioned handrail lifting bar 20 and offers the protruding nose 32D that through hole 27 stretches into.

Interior bar sheathing internal structure decomposing schematic representation as shown in Figure 6, the internal structure of interior bar sheathing 40, it is the position that to organize the protruding nose 32D lifting moving scope of pulling lock moving part 30 lock dogs 32 in 42 pairs in the second demisheath tube, formation can be one by one by the tooth row button hole 45 and 46 of dead bolt padlock, after the overall package, relevant configuration is shown in Fig. 7 profile, when desiring to carry out the adjustment variation of lifting action, earlier shown in the adjustment lifting cutaway view of Fig. 8, at the lifting stationary state, arc jacking block 39C pushes against protruding nose 32D and snaps in corresponding tooth row button hole 45, the state that is the secure lock handrail height, upwards pull and draw cap sleeve 39A, shown in the adjustment lifting cutaway view of Fig. 9, impelling trigger 39 to pull on the trace 31 draws, arc jacking block 39C is risen push against pulling part 32C, this pulling part 32C is revolved withdraw from the appearance batter 39D of the lock dog portion of pulling, simultaneously protruding nose 32D nose back of the body end sticks up retraction lock dog appearance and moves back hole 39B, releasing is to the pintle hook lock of tooth row button hole 45, the instantaneous again handgrip pad 11 of catching raises or reduction, interlock handrail thimble 10, bar 20 in the handrail lifting, the relative position of adjusting change and sheath overcoat pilum 50 is to the handrail height that needs, loose one's grip again cap sleeve 39A and trigger buckled and draw, simultaneously straight spring 35 draws trace 31 and falls, and makes arc jacking block 39C push against that protruding nose 32D snaps in and corresponding again tooth row button hole 46 is fixed.

Thus, as shown in figure 10, can draw cap sleeve 39A to adjust to change by finger buckle and needed handrail height, and the effect by aforementioned bullet fastening position mechanism 70, can about move and change handrail and adjust and change certain horizontal-shift direction (being made as each about 15 degree of left-handed drift angle and dextrorotation drift angle) for best, constitute handrail with more adjustment functions.

From the above as can be known, this armrests of the utility model with adjustment function, really design multinomial adjustment functions such as having lifting and horizontal-shift direction for the armrests innovation, armrests can be adjusted more meet the comfortable attitude that occupant individual curved boom is rested the head on elbow, overcoming existing armrests feature dimension fixes, can't allow each occupant can experience the defective of comfortable pillow elbow, what reach is satisfactory for result.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims (8)

1, a kind of have an armrests of adjusting function, it is characterized in that: be located at by bar in a handrail thimble, the handrail lifting, one group that pulling bar sheathing in the lock moving part,, a sheath overcoat pilum and the seat overlap joint seat on the bar constitutes in the handrail lifting; The end in addition of seat overlap joint seat overlap joint chair plate, upper vertical is inserted and is stretched sheath overcoat pilum, and what sheath overcoat pilum embedded seat overlap joint seat holds running-on in addition, bar sheathing in being inserted in, between interior bar sheathing and sheath overcoat pilum, form bullet fastening position mechanism, and interior bar sheathing is inserted in the lifting straight-bar position of bar in the handrail lifting with several sections level angles, at interior bar sheathing to should organizing the lock dog lifting moving scope of pulling the lock moving part, formation can be one by one by the tooth row button hole of lock dog padlock; The top affixed handrail thimble inner roof wall of bar in the handrail lifting, what make that the handrail thimble covers that bar, interior bar sheathing and sheath overcoat pilum in the handrail lifting embed seat overlap joint seat holds running-on in addition; The trigger that this group is pulled the lock moving part exceeds interior bar sheathing and sheath overcoat pilum, and curved hanging down passes the correspondence position of handrail thimble.

2, the armrests with adjustment function according to claim 1 is characterized in that, described seat overlap joint seat is embedded in a gripper shoe by a shell and constitutes.

3, armrests with adjustment function according to claim 1, it is characterized in that, the bar sheathing is constituted by the first demisheath tube and the second demisheath tube in described, between the first demisheath tube and the sheath overcoat pilum, formation has the bullet fastening position mechanism of several sections level angles, this bullet fastening position mechanism is on sheath overcoat pilum, same horizontally-arranged is offered several at interval and is played hole clipping, and be parallel to the position that these play hole clipping, offer the spacing translot of a swing angle, the first demisheath tube plays the corresponding horizontal level of hole clipping with these, be embedded an elastic force positioning bead, to horizontal level that should the spacing translot of swing angle, run through the spacing translot of this swing angle and be embedded spacing kelly, the running-on of holding in addition that makes sheath overcoat pilum embed seat overlap joint seat is inserted in this behind bar sheathing, and this spacing kelly protrudes out in the spacing translot of swing angle, the elastic force positioning bead can be in the restriction swing angle scope of the spacing translot coupling of spacing kelly and swing angle, snaps into these and plays the fastening position of being hit by a bullet, a corresponding hole of hole clippings.

4, the armrests with adjustment function according to claim 1 is characterized in that described handrail thimble is provided with the handgrip pad, the handgrip pad inner roof wall of the affixed handrail thimble in top of bar in the handrail lifting.

5, the armrests with adjustment function according to claim 1, it is characterized in that, the lifting straight-bar position of described handrail lifting is that both sides are provided with the straight bar shape that protrudes the wall that hangs down, this lifting straight-bar position insertion end forms one and colludes the hook that mouth makes progress, straight bar shape inner face is near vertical wall position, both sides, protrude a pair of clip body, straight bar shape central authorities are lower than these clip body positions and offer a through hole, and straight bar shape central authorities are higher than these clip body positions, vertical first bolt apertures and second bolt apertures of being convexly equipped with.

6, according to claim 5 have an armrests of adjusting function, it is characterized in that, described this group pull the lock moving part by a trace, a lock dog, several screws and always spring form; Corresponding repeatedly the hanging down by bar in the handrail lifting of this trace body of rod established the position of first bolt apertures and second bolt apertures, offer vertical chute, pass vertical chute by screw respectively, with corresponding first bolt apertures or the second bolt apertures screw lock, this trace closes on the rod end of bar formation hook in the handrail lifting, form corresponding in opposite directions colluding, corresponding in opposite directions collude and hook between, link by straight spring, this trace forms the corresponding in opposite directions end in addition that colludes, the outwards vertical curved trigger of establishing, this trace body of rod closes on the position that the interior bar of handrail lifting is offered through hole, offer the lock dog appearance and move back the hole, and this lock dog appearance is moved back upper end, the hole punching out one-tenth arc jacking block that bar protrudes out in the handrail lifting, this arc jacking block upper end, offer the lock dog portion of pulling and hold batter, the flat axle that can snap in the set clip body of bar in the handrail lifting is stretched out in these lock dog both sides, and the lock dog top is provided with the pulling part of protrusion, bottom vertical stretch out and in the handrail lifting bar offer the protruding nose that through hole stretches into.

7, the armrests with adjustment function according to claim 6 is characterized in that described trigger is provided with cap sleeve outward.

8, according to claim 3 have an armrests of adjusting function, it is characterized in that, the described second demisheath tube be to should organizing the lock dog lifting moving scope of pulling the lock moving part, formation can be one by one by the tooth row button hole of dead bolt padlock.

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