CN201536859U - High chair structure for children - Google Patents

Abstract

The utility model provides a high chair structure for children. A control line and an elastic component drive an inserted pin connected with a backrest pipe to move and to be embedded in adjustable sections at different angles for positioning, so as to control the inclination angle of the backrest pipe; when the high chair is stretched and used, a rear pipe of a rear support is positioned and stopped through a safety lock and cannot be pulled axially, therefore, when stretched, the high chair has safety and protection, and conversely, the high chair can be folded.

Description

The virgin high chair structure of using

[technical field]

The utility model is used the high chair structure about a kind of child, is meant that especially a kind of child who controls the angle of inclination of backing tube and have a safety lock function uses the high chair structure.

[background technology]

Virgin use high chair, No. the 200720305340.0th, application [the virgin high chair structure of use] (hereinafter to be referred as preceding case) on record is arranged before the applicant, preceding case designs focus on the child with high chair can fold, economization folds and pack the volume of timber.Yet the backrest inclination angle is fixed, and can not adjust.

[utility model content]

The purpose of this utility model is to provide a kind of child to use the high chair structure, the adjustable whole variation of its backrest inclination angle, and high chair open when using after pipe locked by safety lock in addition so that high chair opens tool security when using.

A kind of child of the utility model uses the high chair structure, drives the latch displacement that is connected with backing tube by control line and elastic parts, embeds the interior location of adjusting section of different angles position, with the angle of inclination of control backing tube; When high chair opened and uses, back pipe was located stopper by safety lock, can not axial displacement, and tool security protection when high chair is opened.

A kind of child uses the high chair structure, and the backing tube bottom is to embed in the concavity brace that is fixed on the high chair skeleton, and does the single-point pivot joint with a fixture; It is characterized in that: brace is in single-point articulated section below, and two side faces has one respectively and transfers a section groove, transfers in the section groove tool two lattice intercommunications and tandem adjusting section at least; The backing tube top is provided with a controller, and controller connects one first control line and stretches in the backing tube, and the terminal extension bit of first control line is in backing tube one pipe end inside, each tool one vertical slotted hole of backing tube two bottom side pipe ends; A positioning seat is established in the pipe end inside of the corresponding first control line end of backing tube, and positioning seat is connected with first control line end, and tool one perforation radially, and the positioning seat end is provided with one first elastic parts; One latch is to be horizontally through the perforation of transferring section groove, backing tube and the position positioning seat in backing tube; The latch strength down that first elastic parts has the pushing tow positioning seat and is connected with positioning seat, make the clamping of one of the latch section of keeping down and transfer groove, thereby make and on backing tube, pull controller, can spur positioning seat and latch synchronous shift, carry out the adjustment at backing tube angle of inclination.

Wherein, the socket post that one section diametric plane of this positioning seat top tool dwindles, the side direction clip hole that the socket post is provided with axial axis hole and communicates, the first control line end is established a fixing head that enlarges shape and can be embedded in the engine cliping hole and be connected with positioning seat; First elastic parts is through the socket post outside, and two ends are limited between the socket post terrace and fixture of positioning seat.

A kind of child uses the high chair structure, comprises:

One base is in order to the usefulness that lands;

Pipe before one, bottom side and base front end articulate, and tiltedly stretch to the back upper place top side, with the common affixed covered joint seat of two looped pipelines;

Pivot joint in the middle of the one back pipe, bottom and base rear end, top are passed behind the covered joint seat affixed with a pin joint seat;

One backing tube articulates in the middle of a bottom and the stationary pipes, and the top reaches upward backward extends;

Cross with the backing tube bottom in the middle of the stationary pipes, both sides, to articulating pair of armrests, the handrail front end is fixed a card with a Pivot component level on two side tops; The place is articulated with one and also manages the affixed pin joint seat in top with the back in the middle of the stationary pipes below, the stationary pipes one end outside is equipped with a folding pull handle, the corresponding folding pull handle of stationary pipes place has a vertical elongated displacement groove, with a steady pin by the folding pull handle outside, radially pass the displacement groove of folding pull handle, stationary pipes, the folding pull handle is fixed on the stationary pipes;

One stay pipe, the top articulates in Pivot component position and stationary pipes, articulates with a connecting seat with preceding pipe top in the middle of the bottom;

A pipe, an end is connected with stationary pipes, the other end extends setting forward, handrail is connected with pair of support rods between pipe with seat, seat pipe two sides be respectively equipped with one with the connecting rod of pin joint seat pivot joint;

It is characterized in that: the corresponding folding pull handle of this stationary pipes inside is equipped with one second control line, and second control line, one end is connected with steady pin, and the other end extends down in the pin joint seat along stationary pipes inside; The interior recessed elongated chute that has of pin joint seat, tool one is vertically bored a hole in the middle of the chute, and chute is embedded in the slide block of tool fluting in the middle of, and two sidewalls of slotting are tool one corresponding skewed slot respectively, and the skewed slot inclination moves towards lower in the positioning body end position in the face of second control line; Vertical perforation place in the fluting in the middle of the corresponding chute is to embed a positioning pipe, and the positioning pipe bottom embeds in the perforation, and positioning pipe two side shoulders are tool one projection respectively, and projection is to hold respectively in the skewed slot of slide block; Positioning pipe is embedded in one second elastic parts, and the second elastic parts top is limited, and second elastic parts has the strength that the eternal bottom down of pushing tow positioning pipe passes the pin joint seat below; The slide block end is connected with second control line, and be provided with one the 3rd elastic parts between this end and pin joint seat inwall, the 3rd elastic parts has past second control line of the pushing tow slide block strength of displacement dorsad, the projection of positioning pipe two side shoulders remains in the low dot location of slide block skewed slot, by the setting of second and third elastic parts, the positioning pipe bottom had pass the strength of pin joint seat below; The covered joint seat bottom face extends a tongue piece to the pin joint seat end, it is that the position is below pin joint seat that tongue piece opens when using with high chair the child, positioning pipe position tool one hole clipping of corresponding pin joint seat, when making the child open use with high chair, positioning pipe can snap in the hole clipping of tongue piece in conjunction with the location, and preceding Guan Yuhou pipe snaps in because of positioning pipe in the hole clipping of tongue piece and is mutual binding holding state.

Wherein, being connected between this slide block end and second control line is the positioning body that the second control line end tool one enlarges shape, and slider surface is to the positioning body end tool one interlocking portion of second control line, interlocking portion in for the positioning body embedding of second control line and connect.

Wherein, these brace two side-lines can coat a sheath.

A kind of child uses the high chair structure, comprises:

One base is in order to the usefulness that lands;

Pipe before one, bottom side and base front end articulate, and tiltedly stretch to the back upper place top side, with the common affixed covered joint seat of two looped pipelines;

Pivot joint in the middle of the one back pipe, bottom and base rear end, top are passed behind the covered joint seat affixed with a pin joint seat;

One backing tube articulates in the middle of a bottom and the stationary pipes, and the top reaches upward backward extends;

Cross with the backing tube bottom in the middle of the stationary pipes, both sides, to articulating pair of armrests, the handrail front end is fixed a card with a Pivot component level on two side tops; One stay pipe, the top articulates in Pivot component position and stationary pipes, articulates with a connecting seat with preceding pipe top in the middle of the bottom;

A pipe, an end is connected with stationary pipes, the other end extends setting forward, handrail is connected with pair of support rods between pipe with seat, seat pipe two sides be respectively equipped with one with the connecting rod of pin joint seat pivot joint;

It is characterized in that: for the end face that the back pipe stretches into, be provided with the cover T-Ring of a reduced diameter in covered joint seat, the nearly terrace distal process of cover T-Ring anchor ring is stretched a card post; Tool one torque spring is set on the cover T-Ring outside, and an end is connected with the cover T-Ring; Tool one lock tube pipe is set in the cover T-Ring outside, outer wall corresponding to the card post position of cover T-Ring offer one radially elongated slot stretch into for the card post, the torque spring other end is connected with the lock tube pipe, has the strength of lock tube pipe rotation post-tensioning recurrence; The planning of lock tube pipe inside pipe wall is provided with the roof pressure face of a radial projection, and roof pressure face one end is connected with cambered surface with lock tube pipe inside pipe wall; The roof pressure face position of the inner corresponding lock tube pipe of back pipe is equipped with a shell fragment, shell fragment has a fixing pearl towards the roof pressure face end of lock tube pipe, fixedly pearl through after the slotted eye of pipe pass, touch with the roof pressure face of lock tube pipe, and fixedly pearl is limited by lock tube pipe inboard, and fixedly pearl stops that the back tubular axis is to pull.

A kind of child of the utility model uses the high chair structure, and its advantage and effect are: the adjustable whole variation of its backrest inclination angle, and high chair open when using after pipe locked by safety lock in addition, make high chair open tool security when using.

[description of drawings]

Figure 1 shows that the utility model embodiment stereogram

Figure 2 shows that the utility model embodiment side view

Figure 3 shows that the part exploded view of the utility model embodiment backing tube

Figure 4 shows that the part enlargement decomposition of the utility model embodiment backing tube and stationary pipes

Figure 5 shows that the utility model embodiment backing tube and stationary pipes binding end cutaway view

Figure 6 shows that the STRUCTURE DECOMPOSITION figure of the utility model embodiment pin joint seat and covered joint seat

Figure 7 shows that the interface arrangment figure of the utility model embodiment pin joint seat and covered joint seat

Figure 8 shows that the utility model embodiment backrest adjustment action diagram ()

Figure 9 shows that the utility model embodiment backrest adjustment action diagram (two)

Figure 10 shows that the utility model embodiment backrest adjustment action diagram (three)

Figure 11 shows that the overall schematic after the utility model embodiment adjusts the backing tube angle

Figure 12 shows that the utility model embodiment folding state schematic diagram ()

Figure 13 shows that the utility model embodiment folding state schematic diagram (two)

Figure 14 shows that the utility model embodiment folding state schematic diagram (three)

Figure 15 shows that the disengaging structure chart of the utility model embodiment pin joint seat and tongue piece

Figure 16 shows that the utility model embodiment folds schematic diagram ()

Figure 17 shows that the utility model embodiment folds schematic diagram (two)

Figure 18 shows that the structural perspective of the utility model embodiment tool second safety lock

Figure 19 shows that the structural perspective of the utility model embodiment second safety lock

Figure 20 shows that the STRUCTURE DECOMPOSITION figure of the utility model embodiment second safety lock

Shown in Figure 21 is the structure cutaway view of the utility model embodiment second safety lock

Shown in Figure 22 is the sectional view of Figure 21

The cardon of doing for Figure 21 shown in Figure 23

The cardon of doing for Figure 22 shown in Figure 24

Shown in Figure 25 is the structure side view of the utility model embodiment tool second safety lock

Shown in Figure 26 is the actuating figure of the utility model embodiment tool second safety lock

The figure that folds for the utility model embodiment tool second safety lock shown in Figure 27

Concrete label is as follows among the figure:

The virgin high chair of using--1 base--pipe before 10---20

Looped pipeline--is managed--30 covered joint seat---31 behind the 20a

Tongue piece--310 hole clippings--311 backing tube---40

Slotted hole--400 controllers--41 first control line---42

Fixing head--42a positioning seat--43 perforation---430

Socket post--43a axis hole--43b clip hole---431

First elastic parts--44 stationary pipes--50 Pivot component---500

Handrail--51 cards--52 pin joint seat---53

Flap--53a chute--530 perforation---531

Folding pull handle--54 displacement grooves--540 second control line---55

Positioning body--550 steady pins--56 slide block---57

Fluting--570 skewed slots--571 interlocking portion---572

The 3rd elastic parts--573 positioning pipes--58 projection---580

Second elastic parts--581 stay pipes--60 Connection Block---61

Seat pipe--62 pedals--63 support bar---64

Connecting rod--65 braces--70 transfer the section groove---71

Regulate section--710 latches--72 fixture---73

Sheath--80 second safety locks--90 cover T-Ring---312

Terrace--313 card posts--314 torque spring---91

Lock tube pipe--92 elongated slots--920 roof pressure face---921 radially

Cambered surface--9210 shell fragments--93 fixedly pearl---930

Slotted eye---300

[specific embodiment]

See also shown in Fig. 1,2, virgin structure with high chair 1 comprises:

One is the base 10 of U type, and smooth ground is in order to the usefulness that lands;

One is the preceding pipe 20 of inverted U, and two ends, bottom side and base 10 front ends articulate, and tiltedly stretch to the back upper place top side, with the common affixed covered joint seat 31 of two looped pipeline 20a;

The back pipe 30 of one single tube shape articulates in the middle of bottom and base 10 rear ends, and it is affixed with a pin joint seat 53 that covered joint seat 31 backs are passed on the top;

One backing tube 40 that is inverted U (sees also Fig. 1

Shown in 4), be provided with a controller 41 in backing tube 40 tops, controller 41 connects one first control line 42 and stretches in the backing tube 40, and the fixing 42a position that first control line, 42 terminal tools one enlarge shapes is in backing tube 40 1 pipe end inside, each tool one vertical slotted hole 400 in the middle of 40 liang of pipe ends of backing tube.A positioning seat 43 is established (as Fig. 3 in the pipe end inside of a fixing 42a of backing tube 40 tools first control line 42, shown in 4), positioning seat 43 middle tools one are perforation 430 radially, the socket post 43a that one section diametric plane of positioning seat 43 top tools dwindles, socket post 43a tool one axial axis hole 43b, the clip hole 431 of one wealthy mouthful of shape of side tool, inside and top communicate with axis hole 43b, the socket post 43a outside is arranged with one first elastic parts 44 (as spring), but side direction embedded in the engine cliping hole 431 of positioning seat 43 after a fixing 42a of first control line 42 passed first elastic parts 44, and first control line, 42 line segment positions are in the axial axis hole 43b of socket post 43a, in order to do pulling controller 41, can spur positioning seat 43 synchronous shift (as shown in Figure 5) in backing tube 40;

One is the stationary pipes 50 (shown in Fig. 1,2,4) of the type of falling ㄇ, crosses with backing tube 40 bottoms in the middle of the both sides, and two side tops articulate a level to one of extending handrail 51 with a Pivot component 500, and handrail 51 front ends articulate a concavity card 52.The place is articulated with one and also manages the affixed pin joint seat 53 (as shown in Figure 6) in 30 tops with the back in the middle of stationary pipes 50 belows, the stationary pipes 50 1 ends outside is equipped with a folding pull handle 54, stationary pipes 50 corresponding folding pull handles 54 places have a vertical elongated displacement groove 540 (shown in Fig. 6,13), with a steady pin 56 by outside the folding pull handle 54, radially pass the displacement groove 540 of folding pull handle 54, stationary pipes 50, folding pull handle 54 is fixed on the stationary pipes 50;

One stay pipe 60, the two side tops that are the type of falling ㄇ articulate with stationary pipes 50 respectively in Pivot component 500 positions, articulate with a connecting seat 61 in the middle of the bottom with in the middle of preceding pipe 20 tops.Tool one ㄇ type seat pipe 62, seat pipe 62 1 ends are connected with stationary pipes 50, the other end extends forward a pedal 63 is set, and 62 of handrail 51 and seat pipes are connected with pair of support rods 64, in seat manage 62 2 sides be respectively equipped with one with the connecting rod 65 (as shown in Figure 1, 2) of pin joint seat 53 pivot joints;

Crossing with backing tube 40 bottoms are approaching in the middle of said fixing pipe 50 both sides, is to be concavity ㄇ font brace 70 with one the two 40,50 appearance is gone into.Brace 70 is fixing with stationary pipes 50, backing tube 40 runs through the formation single-point with brace 70 tops with a fixture 73 and articulates, in below, single-point articulated section, two side faces has one respectively and transfers section groove 71, transfer in the section groove 71 tool two lattice intercommunications and tandem adjusting section 710 at least, insert the perforation 430 of transferring section groove 71, backing tube 40 and the position positioning seat 43 in backing tube 40 with a latch 72, make positioning seat 43 and latch 72 consubstantiality interlocks.First elastic parts, 44 two ends are subject to the socket post 43a terrace and 73 of the fixtures (as shown in Figure 5) of positioning seat 43, first elastic parts 44 has pushing tow positioning seat 43 and a fixing 42a, latch 72 strength down of first control line, 42 ends that are connected with positioning seat 43, latch 72 is kept down and the clamping of one of two accent section grooves 71.Brace 70 both sides respectively coat a sheath 80, make tool security protection (shown in Fig. 3,4);

Said fixing pipe 50 (shown in Fig. 6,13), corresponding folding pull handle 54 inside are equipped with one second control line 55, second control line, 55 1 ends are connected with steady pin 56, and the positioning body 550 that other end tool one enlarges shape extends down in the pin joint seat 53 along stationary pipes 50 inside;

Above-mentionedly be articulated in the middle of stationary pipes 50 belows, with the affixed pin joint seat 53 (shown in Fig. 2,6) in pipe 30 tops, back, the pin joint seat 53 interior recessed elongated chutes 530 that have, vertically perforation 531 of tool one in the middle of the chute 530, chute 530 is embedded in the slide block 57 of tool fluting 570 in the middle of, 570 2 sidewalls of slotting are tool one corresponding skewed slot 571 respectively, and skewed slot 571 tilts to move towards in positioning body 550 end positions lower (as shown in Figure 7) in the face of second control line 55.Vertical perforation 531 places in the fluting 570 in the middle of the corresponding chute 530 embed a positioning pipe 58, and positioning pipe 58 bottoms embed in the perforation 531, and positioning pipe 58 2 side shoulders are tool one projection 580 respectively, and projection 580 holds in the skewed slot 571 of going into slide block 57 respectively.Be to embed one second elastic parts 581 (as spring) in the positioning pipe 58, second elastic parts, 581 tops are limited by and articulate flap 53a, and second elastic parts 581 has the strength (as shown in Figure 7) that pushing tow positioning pipe 58 eternal bottoms down pass pin joint seat 53 belows.Slide block 57 is in the face of the positioning body 550 end tools one interlocking portion 572 of second control line 55, can embed for the positioning body 550 of second control line 55 in the interlocking portion 572, be provided with one the 3rd elastic parts 573 (as spring between interlocking portion 572 sides and pin joint seat 53 inwalls, as shown in Figure 7), make the 3rd elastic parts 573 have pushing tow slide block 57 past second control lines 55 strength of displacement dorsad, make the low dot location of projection 580 holding positions of positioning pipe 58 2 side shoulders at slide block 57 skewed slots 571, borrow second, three elastic parts 581,573 setting makes positioning pipe 58 bottoms have the strength that passes pin joint seat 53 belows.

Above-mentioned covered joint seat 31 (shown in Fig. 1,6,7), bottom face extends a tongue piece 310 to pin joint seat 53 ends, it is that the position is below pin joint seat 53 that tongue piece 310 opens when using at high chair, positioning pipe 58 position tools one hole clipping 311 of corresponding pin joint seat 53, when making the child open use with high chair 1, positioning pipe 58 can snap in the hole clipping 311 of tongue piece 310 in conjunction with the location, and pipe 20 and back pipe 30 snap in because of positioning pipe 58 in the hole clipping 311 of tongue piece 310 and be mutual binding holding state before making, and constitute a safety lock.

After above-mentioned member is made up in regular turn, promptly as shown in Figure 1, 2.During use:

1. see also shown in Fig. 8～11, when the user wants to adjust the angle of inclination of backing tube 40, control controller 41 with one hand, make to be pulled away from out on first control line, 42 pulling latches, 72 compressions, first elastic parts 44 and regulate section 710, at this moment, the angle of inclination that can adjust backing tube 40 is (as Fig. 8, shown in 9), transfer to loosen controller 41 behind the angle of inclination of wanting again and make first elastic parts 44 positioning seat 43 and latch 72 be returned the position in the top downwards with restoring force, latch 72 promptly embeds location (as shown in figure 10) in the pairing adjusting section 710, finishes the action (as shown in figure 11) of adjusting backing tube 40 angles of inclination.

2. see also shown in Figure 12～16, when the user wants the folding child with high chair 1, the user controls folding pull handle 54 (as shown in figure 12) earlier, safety lock is opened, second control line 55 is drawn move slide block 57 (as Figure 13, shown in 14), at this moment, the projection 580 of positioning pipe 58 is because of the displacement of slide block 57, compress the last site (as shown in figure 15) that second elastic parts 581 is moved to skewed slot 571 along skewed slot 571 and one side, positioning pipe 58 therefore with on move away before the hole clipping 311 of covered joint seat 31 tongue pieces 310 fixed of pipe 20 looped pipeline 20a, before making, back pipe 20,30 can carry out the folding action by means of pressing down (as Figure 16, shown in 17).

Secondly, see also Figure 18

Shown in 20, for making the child when opening use, have more security with high chair, prevent the first road safety lock controller 41 of the aforementioned covered joint seat 31 of child's false touch and 53 clampings of pin joint seat, the safety issue that causes high chair to be folded suddenly, and high chair is not flared to stopper fixed point and causes and open infull safety issue, in 30 of covered joint seat 31 and back pipes, on one second safety lock 90 (the first road safety lock for) can be set in addition.Second safety lock 90 for back pipe 30 end faces that stretch into, is provided with the cover T-Ring 312 of a reduced diameter in covered joint seat 31, and nearly terrace 313 distal process of cover T-Ring 312 anchor rings are stretched a card post 314; Tool one torque spring 91 is to be set on cover T-Ring 312 outsides, and an end is fixing with cover T-Ring 312; Tool one lock tube pipe 92, be to be set in cover T-Ring 312 outsides, be connected with torque spring 91 other ends, corresponding to the card post 314 position outer walls of cover T-Ring 312 offer one radially elongated slot 920 stretch into for card posts 314, after making lock tube pipe 92 and cover T-Ring 312 being connected, lock tube pipe 92 can carry out and the radially rotation of elongated slot 920 equidistant length on cover T-Ring 312, and torque spring 91 has the function that lock tube pipe 92 rotation backs retract lock tube pipe 92 with back stretch playback.The planning of lock tube pipe 92 inside pipe walls is provided with the roof pressure face 921 (as shown in figure 22) of a radial projection, and roof pressure face 921 1 ends are connected with cambered surface 9210 with lock tube pipe 92 inside pipe walls.Roof pressure face 921 positions of back pipe 30 inner corresponding lock tube pipes 92 are equipped with one [U] type shell fragment 93, shell fragment 93 has a fixing pearl 930 towards roof pressure face 921 ends of lock tube pipe 92, fixedly pearl 930 through after pipe 30 slotted eye 300 pass, touch with the roof pressure face 921 of lock tube pipe 92, and fixedly pearl 930 is limited by lock tube pipe 92 inboards (shown in the 21st figure), make back pipe 30 and lock tube pipe 92 borrow fixedly pearl 930 and be limited by lock tube pipe 92 inboards, make back pipe 30 axial displacements arbitrarily, and the cover T-Ring 312 of lock tube pipe 92 and covered joint seat 31 engage with card post 314 with elongated slot 920 radially, and mutually combine but lock tube pipe 92 can be done on covered joint seat 31 and radially the isometric swing offset of elongated slot 920 (as Figure 21, shown in 22).When desire is opened second safety lock 90 so that when folding high chair, with hand switching lock tube pipe 92, lock tube pipe 92 is just followed card post 314 swing offsets with elongated slot 920 radially, at this moment, the roof pressure face 921 of lock tube pipe 92 just is compressed in the pipe 30 of back (shown in Figure 23,24) in the fixedly pearl 930 with shell fragment 93, together with aforementioned the first road safety lock is also opened in the lump, pipe 30 can fold shown in Figure 26,27 in regular turn with high chair by the former shape that opens shown in Figure 25 after cooperation tramped with one's feet and steps on.Borrow second safety lock 90 to cooperate first safety lock, make the security after the child opens with high chair higher.And the second road safety lock, 90 tool automatic locking functions are no matter the first road safety lock is opened by false touch, perhaps high chair opens inentirely, and the first road safety lock does not block to anchor point, and the second road safety lock is because of tool automatic locking function, all can provide high chair safer result of use the locking of high chair safety.

Claims (3)

1. a child uses the high chair structure, comprises:

One base is in order to the usefulness that lands;

Pipe before one, bottom side and base front end articulate, and tiltedly stretch to the back upper place top side, with the common affixed covered joint seat of two looped pipelines;

Pivot joint in the middle of the one back pipe, bottom and base rear end, top are passed behind the covered joint seat affixed with a pin joint seat;

One backing tube articulates in the middle of a bottom and the stationary pipes, and the top reaches upward backward extends;

Cross with the backing tube bottom in the middle of the stationary pipes, both sides, to articulating pair of armrests, the handrail front end is fixed a card with a Pivot component level on two side tops; The place is articulated with one and also manages the affixed pin joint seat in top with the back in the middle of the stationary pipes below, the stationary pipes one end outside is equipped with a folding pull handle, the corresponding folding pull handle of stationary pipes place has a vertical elongated displacement groove, with a steady pin by the folding pull handle outside, radially pass the displacement groove of folding pull handle, stationary pipes, the folding pull handle is fixed on the stationary pipes;

One stay pipe, the top articulates in Pivot component position and stationary pipes, articulates with a connecting seat with preceding pipe top in the middle of the bottom;

A pipe, an end is connected with stationary pipes, the other end extends setting forward, handrail is connected with pair of support rods between pipe with seat, seat pipe two sides be respectively equipped with one with the connecting rod of pin joint seat pivot joint;

It is characterized in that: the corresponding folding pull handle of this stationary pipes inside is equipped with one second control line, and second control line, one end is connected with steady pin, and the other end extends down in the pin joint seat along stationary pipes inside; The interior recessed elongated chute that has of pin joint seat, tool one is vertically bored a hole in the middle of the chute, and chute is embedded in the slide block of tool fluting in the middle of, and two sidewalls of slotting are tool one corresponding skewed slot respectively, and the skewed slot inclination moves towards lower in the positioning body end position in the face of second control line; Vertical perforation place in the fluting in the middle of the corresponding chute is to embed a positioning pipe, and the positioning pipe bottom embeds in the perforation, and positioning pipe two side shoulders are tool one projection respectively, and projection is to hold respectively in the skewed slot of slide block; Positioning pipe is embedded in one second elastic parts, and the second elastic parts top is limited, and second elastic parts has the strength that the eternal bottom down of pushing tow positioning pipe passes the pin joint seat below; The slide block end is connected with second control line, and be provided with one the 3rd elastic parts between this end and pin joint seat inwall, the 3rd elastic parts has past second control line of the pushing tow slide block strength of displacement dorsad, the projection of positioning pipe two side shoulders remains in the low dot location of slide block skewed slot, by the setting of second and third elastic parts, the positioning pipe bottom had pass the strength of pin joint seat below; The covered joint seat bottom face extends a tongue piece to the pin joint seat end, it is that the position is below pin joint seat that tongue piece opens when using with high chair the child, positioning pipe position tool one hole clipping of corresponding pin joint seat, when making the child open use with high chair, positioning pipe can snap in the hole clipping of tongue piece in conjunction with the location, and preceding Guan Yuhou pipe snaps in because of positioning pipe in the hole clipping of tongue piece and is mutual binding holding state.

2. child according to claim 1 uses the high chair structure, it is characterized in that: being connected between this slide block end and second control line, it is the positioning body that the second control line end tool one enlarges shape, slider surface is to the positioning body end tool one interlocking portion of second control line, embeds for the positioning body of second control line in the interlocking portion and connects.

3. a child uses the high chair structure, comprises:

One base is in order to the usefulness that lands;

Pipe before one, bottom side and base front end articulate, and tiltedly stretch to the back upper place top side, with the common affixed covered joint seat of two looped pipelines;

Pivot joint in the middle of the one back pipe, bottom and base rear end, top are passed behind the covered joint seat affixed with a pin joint seat;

One backing tube articulates in the middle of a bottom and the stationary pipes, and the top reaches upward backward extends;

Cross with the backing tube bottom in the middle of the stationary pipes, both sides, to articulating pair of armrests, the handrail front end is fixed a card with a Pivot component level on two side tops; One stay pipe, the top articulates in Pivot component position and stationary pipes, articulates with a connecting seat with preceding pipe top in the middle of the bottom;

A pipe, an end is connected with stationary pipes, the other end extends setting forward, handrail is connected with pair of support rods between pipe with seat, seat pipe two sides be respectively equipped with one with the connecting rod of pin joint seat pivot joint;

It is characterized in that: for the end face that the back pipe stretches into, be provided with the cover T-Ring of a reduced diameter in covered joint seat, the nearly terrace distal process of cover T-Ring anchor ring is stretched a card post; Tool one torque spring is set on the cover T-Ring outside, and an end is connected with the cover T-Ring; Tool one lock tube pipe is set in the cover T-Ring outside, outer wall corresponding to the card post position of cover T-Ring offer one radially elongated slot stretch into for the card post, the torque spring other end is connected with the lock tube pipe, has the strength of lock tube pipe rotation post-tensioning recurrence; The planning of lock tube pipe inside pipe wall is provided with the roof pressure face of a radial projection, and roof pressure face one end is connected with cambered surface with lock tube pipe inside pipe wall; The roof pressure face position of the inner corresponding lock tube pipe of back pipe is equipped with a shell fragment, shell fragment has a fixing pearl towards the roof pressure face end of lock tube pipe, fixedly pearl through after the slotted eye of pipe pass, touch with the roof pressure face of lock tube pipe, and fixedly pearl is limited by lock tube pipe inboard, and fixedly pearl stops that the back tubular axis is to pull.

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