Description of drawings
Fig. 1 is the dining chair front view that People's Republic of China's utility model is announced CN2705077Y patent case;
Fig. 2 is the A enlarged drawing partly among Fig. 1;
Fig. 3 is the schematic side view of the utility model high chair first preferred embodiment;
Fig. 4 is the partial exploded view of described first preferred embodiment, and in the present embodiment, second foot rest is the body shape that takes the shape of the letter U, and only only shows right-hand part among the figure, and the left side is cut slightly;
Fig. 5 is a local combination cross-sectional schematic of described first preferred embodiment, and demonstration regulon, button, first adaptor, second adaptor, first foot rest and second foot rest have all been finished assembling;
Fig. 6 is the partial enlarged drawing of Fig. 5, and the clamping end that shows the dead bolt of regulon stretches in the locating hole of the perforate of first foot rest and second foot rest;
Fig. 7 is another local combination cross-sectional schematic of described first preferred embodiment, shows that the clamping end of the dead bolt of regulon breaks away from the perforate of first foot rest and the locating hole of second foot rest;
Fig. 8 is the partial enlarged drawing of Fig. 7;
Fig. 9 is the button and the index means combination vertical view of described first preferred embodiment;
Figure 10 is the schematic side view of the utility model high chair second preferred embodiment;
Figure 11 is the partial enlarged drawing of Figure 10, and the clamping end that shows the dead bolt of regulon stretches in the locating hole of the perforate of first foot rest and second foot rest;
Figure 12 is the inner housing and the first food stand combination cross-sectional schematic of described second preferred embodiment, and the projection on the elasticity finger of demonstration inner housing is also stretched the opening that places first foot rest;
Figure 13 is the inner housing and the first food stand combination cross-sectional schematic of described second preferred embodiment, and the projection on the elasticity finger of demonstration inner housing breaks away from the opening of first foot rest; And
Figure 14 be described second preferred embodiment another local combination cross-sectional schematic, show that the clamping end of the dead bolt of regulon breaks away from the perforate of first foot rest and the locating hole of second foot rest.
The specific embodiment
Below in conjunction with accompanying drawing and two embodiment the utility model is elaborated, special instruction, in the following description content, similar elements is to represent with identical numbering.
Consulting Fig. 3,4, is first preferred embodiment of the utility model high chair 2, and high chair 2 includes seat 3, the foot rest 4 in order to supporting chair 3 that supplies the child to take, and one is arranged on the foot rest 4 in order to adjust the regulon 5 of seat 3 height.Foot rest 4 includes two first foot rests 41 being hollow elongated tubular body shape, take the shape of the letter U pipe body shape and one second foot rest 42 (only showing half among the figure) that can place respectively for 2 first foot rests 41, two tripods that are connected to second foot rest 42 43, two first adaptors 44, and two second adaptors 45.Shown in Fig. 5,6, be provided with in addition on first foot rest 41 on a perforate 411, the second foot rests 42 and offer a linearly spaced majority locating hole 421.And for example shown in Figure 3, second foot rest, 42 bottom intervals are provided with two front wheels 420, and at least one front wheel 420 is provided with a Braking piece 422, tramples for the operator, allows high chair 2 remain on inactive state.Each tripod 43 bottom also is respectively equipped with a rear roller 431.In addition, first adaptor 44 have two can be combined left and right half shell portion 441,442 (with the view angle of Fig. 4), left and right half shell portion 441,442 is combined in first foot rest, 41 top ends, and left half shell portion 441 and be connected with seat 3.And second adaptor 45 has a passage that runs through 451, and a pivot end 452 that can be articulated with tripod 43 tops.
Still consult Fig. 3,4, regulon 5 includes and is arranged at two inner housings 51 that contiguous bottom is located and can be combined into one in first foot rest 41,51 ', be positioned at two inner housings 51, between 51 ' and be hubbed at a dead bolt 52 on the inner housing 51 wherein, one is positioned at two inner housings 51, between 51 ' and be slidedly arranged on movable block 53 on the inner housing 51 wherein, one is positioned at two inner housings 51, between 51 ' and the compression spring 54 of an end butt movable block 53, one is connected with the executive component button 55 for example on first adaptor 44, one is connected with in the return unit 56 of 44 of button 55 and first adaptors, and one is connected with in the hauling rope 57 of 53 of button 55 and movable blocks.In the present embodiment, adaptor 44 is to use as a grip element.In addition, because button 55 contiguous seats 3 are provided with, the user need not stoop or squat down, and can carry out Height Adjustment as long as stand, and is very convenient.
Consult Fig. 5,6, establish depression on the described inner housing 51 of movable block 53 for group and be formed with a disposal area 511 that is microscler extension, and a stop section 512 that is positioned at disposal area 511 upper edges.Again, dead bolt 52 general Y-shaped demihull shapes have the link 522 that a pivot end 521, is positioned at contiguous pivot end 521 lower position places, and a clamping end 523 that is positioned at pivot end 521 and place, link 522 belows.The upper side edge 523a of clamping end 523 is to be an inclined-plane with respect to locating hole 421, therefore works as first foot rest 41 with respect to second foot rest 42 upwards when pulled, need not push button 55 and can release increase height.When downgrading when height because the stop section of dead bolt 52 is connected to the rotation direction that the inwall of second foot rest 42 has limited dead bolt 52, must press the button 55 could releases to downgrade highly.
The link 522 of dead bolt 52 is provided with a coupling hole 524.In addition, movable block 53 tops are formed with the clip ditch 532 of a neck 531 and neck 531 extensions on one day, are provided with an inclined hole 535 on the movable block 53 in addition.In addition, cooperate and consult Fig. 9, button 55 1 ends have a coupling hole 551, and a groove 552 that extends from coupling hole 551.In addition, hauling rope 57 has two joints 571 (being upper and lower joint), and a connecting line 572 that is connected in 571 of two joints.In addition, dead bolt 52 has the inwall butt of a stop section 525 and second foot rest 42, and the rotation direction with restriction dead bolt 52 makes first foot rest 41 can be with respect to the 42 downward slippages of second foot rest.
Consult Fig. 4,5,6, regulon 5 is when combination, be movable block 53 to be arranged in 511 places, disposal area of described inner housing 51, and will compress on the neck 531 that spring 54 bottoms are sheathed on movable block 53, then the conflict stop section 512 of inner housing 51, compression spring 54 tops.And the pivot end 521 of dead bolt 52 is hubbed on the described inner housing 51, and 522 of the links of dead bolt 52 are to borrow 535 of the inclined holes that an axostylus axostyle 58 is arranged in coupling hole 524 and movable block 53, and with movable block 53 generation continuous action relations.Preferably, have a skewed slot 512 on the inner housing 51, inclined hole 535 is interconnected with skewed slot 512.In addition the lower contact 571 of hauling rope 57 is passed the neck 531 of compression spring 54, movable block 53, and then be placed in clip ditch 532 places, 572 of connecting lines stretch out via clip ditch 532 outside the neck 531 of movable block 53.Promptly finish the combination operation of regulon 5 whereby.
Consult Fig. 4,5,6, foot rest 4 and regulon 5 are when combination, be that the above-mentioned regulon 5 of having finished combination is penetrated in first foot rest 41 by first foot rest, 41 bottoms, utilize retaining elements such as screw (figure does not show) lock knot location, make regulon 5 be positioned place, contiguous bottoms in first foot rest 41, this moment dead bolt 52 clamping end 523 and be placed through the perforate 411 of first foot rest 41 and 421 of the locating holes of second foot rest 42.The top connection 571 of above-mentioned hauling rope 57 is also passed by the top of first foot rest 41, and then the coupling hole 551 by button 55, utilizes connecting line 572 to be inserted into groove 552, makes top connection 571 clampings of hauling rope 57 be positioned on the button 55.Again button 55 is assembled in first adaptor 44, the two ends of return unit 56 then conflict respectively button 55 inwalls and first adaptor, 44 inwalls, and be connected with in 44 of button 55 and first adaptors, so promptly finish assembling operation.
Consult Fig. 7,8, in the time will adjusting the height of high chair 2, as long as the operator pushes described button 55, return unit 56 forms compressive states and accumulates an elastic-restoring force at this moment, button 55 upwards spurs hauling rope 57 simultaneously, hauling rope 57 synchronous interlock movable blocks 53 are upwards slippage in the disposal area 511 of inner housing 51, force compression spring 54 to form compressive state and accumulate an elastic-restoring force, and along with movable block 53 to top offset, cause axostylus axostyle 58 relative movable blocks 53 and slide onto than downside by inclined hole 535 upper side.Relative, 58 of axostylus axostyles are because skewed slot 512 slides onto upper side than downside, upwards produce rotation backward to drive dead bolt 52 simultaneously, make the clamping end 523 of dead bolt 52 break away from the locating hole 421 on second foot rest 42, this moment, regulon 5 was in the release the lock state, the 42 lifting displacements of relative second foot rest of first foot rest, 41 energy, and then allow the operator can heighten or turn down the height of seat 3 like a cork.
Behind the extremely suitable height and position of seat 3 adjusted, as long as the operator is release button 55, shown in Fig. 5,6, button 55 resets under the elastic-restoring force interlock that return unit 56 is disengaged immediately, interlock hauling rope 57 loosens, compression spring 54 also disengages elastic-restoring force and is not stress, drive movable block 53 in the disposal area 511 of inner housing 51 in to descending slippage, cause axostylus axostyle 58 relative movable blocks 53 and slide onto upper side than downside by inclined hole 535, and slide onto than downside by skewed slot 512 upper side, drive dead bolt 52 rotations.Shown in Fig. 7,8, the perforate 411 that makes the clamping end 523 of dead bolt 52 stretch to place first foot rest 41 and the locating hole 421 of second foot rest 42, this moment, regulon 5 was in the lock state, and first foot rest 41 can not the 42 lifting displacements of relative second foot rest, and so seat 3 promptly keeps locating.
Consulting Figure 10,11, is the high chair of second preferred embodiment of the present utility model.The difference of the high chair 7 of second preferred embodiment and the high chair 2 of first preferred embodiment, at vehicle frame in appearance, except first foot rest 41, second foot rest 42 and tripod 43 roughly become the L type, front-wheel 420 is to be located at second foot rest 42 and tripod 43 junctions, and trailing wheel 431 is the ends that are hubbed at the 3rd vehicle frame 43.
In addition, in Height Adjustment mechanism, the button 55 of regulon 6 directly is arranged in the integrally formed handle portion 44 of first foot rest, 41 upper ends and first foot rest 41, and contiguous seat 3.Therefore, the operator need not squat down or jackknife equally and can adjust the height of seat 3.In addition, shown in Figure 12,13, inner housing 61 outside wall surface of regulon 6 convex with two elasticity fingers 612,612 bottoms, elasticity finger and protrusion are formed with a projection 613, first foot rest 41 then is provided with two perforation 412 relatively, after dead bolt 62, movable block 63 and extension spring 64 are mounted on inner housing 61 whereby, as long as inner housing 61 is placed through in first foot rest 41 by first foot rest, 41 bottoms, when the projection 613 of elasticity finger 612 is moved to opening 412 positions, springs into immediately in the opening 412 and reach the location.In the time will taking out inner housing 61, as long as then push the projection 613 of elasticity finger 612, make and move in the projection 613 and break away from opening 412, inner housing 61 is in the state of pulling of separating, and can extract inner housing 61 as shown in figure 13 easily.
In addition, as shown in figure 11, the link 622 of dead bolt 62 and clamping end 623 be by pivot end 621 towards two opposition side horizontal-extendings, when regulon 5 was in the lock state, described clamping end 623 can be inserted in the locating hole 421 of the perforate 411 of first foot rest 41 and second foot rest 42 equally.The top of extension spring 64 is connected with dead bolt 62 contiguous links 622 places, and the bottom of extension spring 64 then is to be connected with in inner housing 61 bottoms.In addition, movable block 63 has a diapire 631, and extends in the same way at interval that the relative position place is provided with a slotted hole 635 on two sidewalls, 632, two sidewalls 632 of diapire 631, and the link 622 of described dead bolt 62 is to borrow axostylus axostyle 58 to be arranged in the slotted hole 635.The diapire 631 of movable block 63 is provided with a screw 636 for placing a screw rod 68, and link 622 side-walls that reach dead bolt 62 are also supported in the top of screw rod 68.Hauling rope 57 bottoms then are pivoted on the other end of movable block 63 with respect to screw 636, by adjusting the effective length that screw rod 68 can be regulated hauling rope 57.
When operator presses button 55, can upwards spur hauling rope 57 equally, make movable block 63 to top offset, extension spring 64 forms extended state and accumulates an elastic-restoring force, and axostylus axostyle 58 follows slotted hole 635 displacements synchronously, and interlock dead bolt 62 produces rotation simultaneously, make dead bolt 62 clamping end 623 as shown in figure 14, break away from the locating hole 421 on second foot rest 42, this moment, regulon 6 was in the release the lock state, make the 42 lifting displacements of relative second foot rest of first foot rest, 41 energy, the operator can heighten or turn down the height of seat 3 equally like a cork.
Shown in Figure 11,14, behind the extremely suitable height and position of seat 3 adjusted, as long as the operator is release button 55, reset immediately under the elastic-restoring force interlock that button 55 and hauling rope 57 can be disengaged at the return unit 56 as Fig. 4 equally, interlock movable block 63 is to bottom offset, and then interlock dead bolt 62 rotations again, makes the clamping end 523 of dead bolt 52 stretch in the locating hole 421 of the perforate 411 of first foot rest 41 and second foot rest 42, regulon 6 can be in the lock state equally, so that seat 3 keeps the location.
As above-mentioned, the utility model high chair 2 can reach the effect of being convenient to adjust height really by the design of above-mentioned structure.The position that is provided with because of button 55 is close to seat 3 again, and so the operator does not need to squat down especially or stand especially when adjusting seat 3 height, even sitting posture also can easily be operated, operates advantage easily so can also provide.