CN2862856Y - Toddler and dining chair dual-purpose vehicle - Google Patents

Abstract

The utility model discloses a dual-purpose car of learning to walk, dining chair, it includes the chassis unit, installs positioning unit, pin joint in this chassis unit and positioning unit's link mechanism, assembles the top dish unit on link mechanism and sets up the fixed unit on this chassis unit. The link mechanism comprises a lower link unit, a connecting unit and an upper link unit which are arranged between the bottom disc unit and the top disc unit and are connected with each other. Lower, upper connecting rod unit can for the chassis unit is received respectively and is received the position and first expansion position and second and receive the position and the second expansion position between and remove respectively will the utility model discloses a dual-purpose car of learning to walk, dining chair adjusts for being applicable to the two kinds of heights of learning to walk and being applicable to the meal, makes it have the service function of learning to walk car and dining chair concurrently, and both convenient to use can avoid extravagant again.

Description

Toddler and dining chair dual-purpose vehicle

technical field

The utility model relates to an appliance for children, in particular to a dual-purpose vehicle for toddlers and dining chairs which has the functions of toddler and dining.

Background technique

During the learning to walk period of children's growth, it is usually possible to use a baby walker to help children exercise their leg strength and get used to the feeling of walking.

As shown in Figure 1, what the patent disclosed by the new No. 094172 of Taiwan Province of China designed by the designer and named as "positioning device for baby walker" is a kind of baby walker 2, which has a central hollow The chassis 21, a plurality of rollers 22 arranged at intervals along the periphery of the bottom surface 211 of the chassis 21, a plurality of feet 23 arranged on the chassis 21 staggered from the rollers 22, and a front pole frame pivotally connected to the chassis 21 in a swingable up and down manner 24. The rear rod frame 25 cross-jointed with the front rod frame 24 and pivotally connected and installed on the chassis 21, the top plate 26 assembled on the top of the front and rear rod frames 24, 25 and provided with accommodating groove 261, and installed on the The top plate 26 is placed into the seat 27 of the accommodating groove 261. The front pole frame 24 and the rear pole frame 25 link the top plate 26 to swing relative to the retracted position and unfolded position of the chassis 21 , and the tripod 23 can be moved to a storage position and a standing position relative to the chassis 21 .

During use, first adjust the front and rear pole frames 24, 25 of the baby walker 2 to the unfolded position, and make the tripod 23 close to the storage position, and the child who rides the baby walker 2 can use the roller 22 as long as the foot is on the ground. move around. When it is necessary to prevent children from moving with the baby walker 2, as long as the tripod 23 is all pulled to the stand position, the chassis 21 will be propped up, and then the rollers 22 will be suspended in the air, thereby achieving the goal of making the baby walker 23 move. The purpose of the positioning of the walking car 2 is not to move. If it is necessary to make the baby walker 2 return to the state that can move around along the ground, as long as the tripod 23 is pulled toward the chassis 21 to the storage position, the baby walker 2 can be returned to the active state.

When not in use, push the front and rear rod frames 24 and 25 to swing from the unfolded position to the chassis 21 to the retracted position, and at the same time, the top plate 26 will also be linked and folded towards the chassis 21 .

Although the aforementioned patents have both the functions of learning to walk and safe positioning, there are still areas to be improved.

1. Sometimes it is necessary to feed the baby directly on the baby walker 2 for convenience, but the height of the baby walker 2 is low, and the feeder must squat down to feed, so it is inconvenient to use.

2. For cultivating children to develop the habit of eating at the dining table, because the height of the baby walker 2 is lower than that of the dining table, it is necessary to hold the baby out of the baby walker 2 and prepare a special dining chair for the baby. Therefore, it is inconvenient , Need to buy dining chair again, so cause waste.

Utility model content

The purpose of the utility model is to provide a dual-purpose vehicle for toddlers and dining chairs, which is convenient to use and avoids waste.

The dual-purpose vehicle for toddlers and dining chairs of the present invention comprises a chassis unit, a positioning unit mounted on the chassis unit, a connecting rod mechanism pivotally connected to the chassis unit and the positioning unit, and a connecting rod mechanism assembled on the connecting rod mechanism. The top plate unit, and a fixed unit arranged on the bottom plate unit.

The chassis unit includes a chassis seat with a hollow center, and a plurality of rollers arranged at intervals along a periphery of a bottom surface of the chassis seat. The chassis seat has two side blocks spaced apart from each other, and a front end block and a rear end block connecting the side blocks.

The positioning unit includes two sliding pieces respectively arranged on the side blocks and capable of sliding and rotating along the front and rear directions, and two positioning pieces respectively arranged on the side blocks for fixing and releasing the sliding pieces.

The link mechanism includes a lower link unit pivotally connected to the chassis unit and the positioning unit, a link unit mounted on the top of the lower link unit, and an upper link unit pivotally connected to the link unit.

The lower link unit includes a first rear rod frame that is pivotally connected to the side block in a swinging manner, and a first front rod frame that is pivotally connected to the first rear rod frame and assembled to the sliding member. The first front pole frame and the first rear pole frame can swing relative to the first retracted position and the first unfolded position of the chassis seat.

The connection unit includes a frame installed on the top of the lower link unit, two first sliding sleeves and two second sliding sleeves that are slidably fitted in the front and rear directions and installed on the frame. The frame is pivotally connected to the first front rod frame, and the first sliding sleeve is pivotally connected to the first rear rod frame.

The upper link unit includes a second rear rod frame pivotally connected to the second sliding sleeve in a swinging manner, and a second front rod frame crossed and pivotally connected to the second rear rod frame. The second front rod frame and the second rear rod frame can swing at a second retracted position and a second unfolded position relative to the chassis seat.

The top plate unit includes a plate body which is used for the pivot connection of the second rear pole frame and for the second front pole frame to lean against and fix and is provided with a hollow accommodation groove, and a plate body installed on the plate body and placed in the The seat of the above-mentioned storage tank.

The fixing unit includes a front end block and a rear end block respectively installed on the chassis base to fix a front fixing part and a rear fixing part of the frame.

With the help of the above structure, the top plate unit can be adjusted to a height that is convenient for children to learn to walk through the upper link unit, the connection unit, and the lower link unit, and can be adjusted to a higher height that is convenient for feeding children at the dining table. Therefore, The dual-purpose vehicle for toddlers and dining chairs provided by the utility model has the functions and characteristics of toddlers and meals.

Description of drawings

Fig. 1 is the three-dimensional assembly diagram of the baby walker disclosed by the new No. 094172 patent of Taiwan Province of China;

Fig. 2 is an incomplete three-dimensional combined view of the toddler and dining chair dual-purpose vehicle in a fully folded state in a preferred embodiment of the present invention, and the seat is not included in the figure;

Fig. 3 is an incomplete top view of the toddler and dining chair dual-purpose vehicle in a fully folded state in the preferred embodiment shown in the utility model, and the seat is not included in the figure;

The side view of Fig. 4 shows the situation of the upper link unit in the preferred embodiment in the second deployed position;

Figure 5 is a side view showing the preferred embodiment in a fully deployed state;

Fig. 6 is an incomplete three-dimensional assembly view without the seat, which is used to illustrate the preferred embodiment in which the lower link unit is in the first deployed position and the upper link unit is in the second deployed position;

The partial three-dimensional combined view of Fig. 7 illustrates the combination of the lower link unit and the positioning unit of the preferred embodiment;

Fig. 8 is a cross-sectional view taken along the line 8-8 in Fig. 7, which is used to illustrate the situation where the sliding member is fixed against the position-limiting end of the chute by the positioning member;

Fig. 9 is a view similar to Fig. 8, which is used to illustrate the situation that the sliding part moves to the retracted end in the slide groove after the positioning part is pulled.

Detailed ways

Below, the dual-purpose vehicle for toddlers and dining chairs of the present utility model will be described in detail through preferred embodiments and accompanying drawings.

Before explaining the details, it should be noted that the relative positional terms used throughout the manual, such as "front", "rear", "top", and "bottom" are based on the direction of use of the occupant.

As shown in Fig. 2, Fig. 5 and Fig. 6, the toddler and dining chair dual-purpose vehicle of the preferred embodiment of the present invention includes a chassis unit 3, a positioning unit 4 installed on the chassis unit 3, and pivotally connected to the chassis respectively. The link mechanism 5 of the unit 3 and the positioning unit 4 , the top plate unit 6 assembled on the link mechanism 5 , the fixed unit 7 fixed and installed on the chassis unit 3 , and the pedal 8 movably installed on the connection unit 52 .

The chassis unit 3 includes a hollowed-out chassis base 30, a plurality of rollers 31 spaced along the periphery of the bottom surface of the chassis base 30, and a plurality of legs 32 pivotally connected to the chassis base 30 with the rollers 31 staggered, and the legs 32 are opposite to each other. The chassis seat 30 can be moved to a storage position and a stand position. The chassis base 30 has two side blocks 33 spaced apart from each other, and a front end block 34 and a rear end block 35 connecting the side blocks 33 .

The positioning unit 4 includes two sliding parts 41 respectively arranged on the side blocks 33 and sliding and rotating along the front and rear directions, and two sliding parts 41 respectively arranged on the side blocks 33 and used for fixing and releasing the sliding parts 41. Positioning piece 42.

The link mechanism 5 includes a lower link unit 51 pivotally connected to the chassis unit 3 and the positioning unit 4 , a link unit 52 mounted on the top of the lower link unit 51 , and an upper link unit 53 pivotally connected to the link unit 52 .

The lower link unit 51 includes a first rear rod frame 511 pivotably connected to the side block 33 , and a first front rod frame 511 that is pivotally connected to the first rear rod frame 511 and assembled on the slider 41 . rod holder 512 . The first front rod frame 512 and the first rear rod frame 511 can swing relative to the first retracted position and the first unfolded position of the chassis base 30 .

The connecting unit 52 includes a frame 521 mounted on the top of the lower link unit 51 , two first sliding sleeves 522 and two second sliding sleeves 523 slidably fitted on the frame 521 along the front and rear directions. The frame 521 is pivotally connected to the first front rod frame 512 , and the first sliding sleeve 522 is pivotally connected to the first rear rod frame 511 .

The upper link unit 53 includes a second rear rod frame 531 pivotably connected to the second sliding sleeve 523, and a second front rod frame 532 crossed and pivotally connected to the second rear rod frame 531. The pole frame 532 and the second rear pole frame 531 can swing relative to the second retracted position and the second unfolded position of the chassis base 30 .

The top tray unit 6 includes a tray body 61 for pivoting the second rear frame 531 and for the second front frame 532 to lean against and fix and is provided with a hollow accommodating groove 611, and is installed on the tray body 61 and placed in The seat 62 of the accommodating groove 611, the tray body 61 also has a placement portion 612 formed in front of the top surface for placing toys and food.

The fixing unit 7 includes a front end block 34 and a rear end block 35 installed on the chassis seat 30 respectively, so as to fix the front fixing part 71 and the rear fixing part 72 of the frame 521, and the front and rear fixing parts 71, 72 all have respectively fixed and The supporting parts 711, 721 installed on the front and rear end blocks 34, 35 for the placement of the frame 521, and the supporting parts 711, 721 that are pivotally connected to the supporting parts 711, 721 and can be opened and fastened relative to the supporting parts 711, 721 Movable cover parts 712,722.

Preferably, the first rear rod frame 511 of the lower link unit 51 has two rear side rods 513 that are pivotally connected between the side blocks 33 and the first sliding sleeve 522 respectively, and are connected to the rear side rods. 513 of the rear link 514, the first front rod frame 512 has two front side rods 515 that are respectively cross-pivotedly assembled on the slider 41 with the rear side rod 513, and are connected to the front side rod 515 The front link 516 , the front side bar 515 and the rear side bar 513 can be interlocked to be located at the first retracted position and the first unfolded position relative to the chassis base 30 .

In addition, the second rear rod frame 531 of the upper link unit 53 has two rear side rods 533 that are respectively pivotally connected between the disc body 61 of the top disc unit 6 and the second sliding sleeve 523 , and are connected to the rear side rods 533 . The rear link 534 of the side bar 533, the second front bar frame 532 has two front side bars 535 that are respectively cross-pivotedly installed with the rear side bar 533 and pivotally connected to the frame 521, and are connected to the front side bar The front connecting rod 536 of 535 , the front side rod 535 and the rear side rod 533 can be interlocked to be located at the second retracted position and the second unfolded position relative to the chassis base 30 .

As shown in Figure 3, Figure 7 and Figure 8, the two side blocks 33 of the chassis seat 30 preferably all have a body 331 connecting the front and rear end blocks 34, 35, and adjacent to the front end block 34 and from the body 331 towards the chassis An assembly body 332 extending from the center of the seat 30, the assembly body 332 has an upright side wall 333 spaced from the body 331, the peripheral edge of the side wall 333 extends toward the body 331 and cooperates with the side wall 333 to define the surrounding of the accommodating chamber 334 The wall 335 and the side wall 333 form a chute 336 arranged along the front-rear direction and communicated with the accommodating chamber 334 . The chute 336 has a retracting end 337 and a limiting end 338 arranged in opposite directions. The sliding member 41 is limited to slide between the retracted end 337 and the limiting end 338 of the chute 336, the positioning member 42 is installed on the surrounding wall 335 and can be pulled, when the sliding member 41 slides to the limiting end 338 , which is resisted by the positioning member 42 and positioned at the limiting end 338 .

The positioning member 42 has a base body 421 located in the accommodating chamber 334 and adjacent to the limiting end 338 of the slide groove 336 , extends upward from the base body 421 through the surrounding wall 335 in an upright direction, and is arranged on the outer surface of the surrounding wall 335 so as to be movable back and forth. The wrenching body 422 extends from the base body 421 in a front-rear direction and away from the retracting end 337 , and movably passes through the cylindrical locking body 423 surrounding the wall 335 back and forth.

The locking body 423 has a shaft part 425 extending from the base body 421 and can move back and forth through and installed on the surrounding wall 335, and is arranged opposite to the base body 421 on the shaft part 425 so that the shaft part 425 is movable back and forth It is arranged on the head 426 around the wall 335 without falling off. The positioning member 42 also has an elastic body 424 disposed along the shaft portion 425 . In this preferred embodiment, the elastic body 424 is a spring.

Although in this preferred embodiment, the elastic body 424 is a spring, the type of the elastic body 424 should not be limited by this, as long as the elastic body 424 is an elastic element, it can have the same effect.

Preferably, the assembly body 332 also has a fastening portion 339 disposed on the surrounding wall 335 to stop the pulling body 422 of the positioning member 42. When the pulling body 422 is fixed on the fastening portion 339, the sliding member 41 is in a slidable state.

In this preferred embodiment, the fastening portion 339 is a flange, and the wrenching body 422 has a buckling portion 427 that is correspondingly fastened on the fastening portion 339 . Of course, there is no limitation on the engagement pattern of the fastening portion 339 and the fastening portion 427 , as long as the fastening portion 339 and the fastening portion 427 are locked and fastened correspondingly, the same effect can be achieved.

As shown in Fig. 2, Fig. 3 and Fig. 9, when the toddler and dining chair dual-purpose vehicle of this preferred embodiment is in a fully folded state, the first front and rear rod frames 512, 511 of the lower link unit 51 are all Closed against the chassis base 30 and in the first retracted position, while the slider 41 is located at the retracted end 337 of the chute 336, the frame 521 of the connecting unit 52 is retracted against the chassis base 30 and placed on the front, The supporting parts 711, 721 of the rear fixing parts 71, 72 are buckled and fixed by the movable cover parts 712, 722, and the second front and rear rod frames 532, 531 of the upper link unit 53 are also received against the chassis seat 30 and fixed. At the second retracted position, the tray body 61 of the top tray unit 6 is also retracted towards the chassis base 30 . In addition, the legs 32 lean against the chassis base 30 and are located in the stowed position.

As shown in Fig. 3, Fig. 4 and Fig. 6, when the toddler and dining chair dual-purpose vehicle of this preferred embodiment are used as a toddler, the front and rear connecting rods of the second front and rear rod frames 532, 531 can be pulled first. 536, 534, then the front side bar 535 and the rear side bar 533 swing toward the direction away from the chassis base 30 in a crossing manner, and the second sliding sleeve 523 moves along the frame 521 toward the side of the second front bar frame 532 direction until the upper link unit 53 is in the second unfolded position, and the top plate unit 6 is also supported on the chassis seat 30 by the linkage of the second front and rear rod frames 532, 531. At this time, The front connecting rod 536 can be positioned against the disc body 61, and the legs 32 are all received in the storage position, so that the child who rides the car can move around the ground 9 by means of the roller 31 and learn to walk.

As shown in Figure 4, Figure 5 and Figure 6, when the toddler and dining chair dual-purpose vehicle of this preferred embodiment is used as a dining chair, the movable cover parts 712, 722 of the front and rear fixing parts 71, 72 can be first Pull away from the supporting parts 711 , 721 to release the frame 521 . Then pull the frame 521 in a direction away from the chassis base 30, and the first front and rear rod frames 512, 511 of the lower link unit 51 can be linked to swing respectively in a direction away from the chassis base 30, and the first rear rod The two rear side rods 513 of the frame 511 can be linked with the first sliding sleeve 522 to slide along the frame 521 toward the direction approaching the first front rod frame 512, and the two front side rods 515 of the first front rod frame 512 can also be linked. The sliding member 41 rotates and moves along the sliding slot 336 from the retracting end 337 to the limiting end 338 and is resisted by the positioning member 42 to be fixed on the limiting end 338 . Thereby, the lower link unit 51 can stand on the chassis seat 30 and be positioned at the first deployed position. Then, the supporting legs 32 are moved to the standing position in a direction away from the chassis base 30, so that the rollers 31 can be supported off the ground 9, and the toddler and dining chair dual-purpose vehicle of this preferred embodiment can Be fixed on the ground 9 to facilitate the feeding of young children. Finally, the pedal 8 for placing the infant's feet is installed on the frame 521 to form a state as shown in Figure 5, so that the infant can take a meal conveniently.

As shown in Figure 6, Figure 8 and Figure 9, when it needs to be folded, first pull the pulling body 422 of the positioning member 42 to drive the base 421 away from the limit end 338 of the chute 336, and engage the buckle part 427 Positioned and fixed on the fastening portion 339 , the originally positioned sliding member 41 moves to leave the limiting end 338 and slide in the slide groove 336 . When the slider 41 moves to the retractable end 337, the front side rod 515 will move with the slider 41, and the rear side rod 513 will swing toward the direction close to the chassis base 30 and drive the The first slider 522 slides along the frame 521 in a direction away from the first front rod frame 512, so that the first rear rod frame 511 and the first front rod frame 512 swing from the first unfolded position to the first retracted position, and then Drive the frame 521 to lean against the chassis base 30, and lean against the supporting parts 711, 721 of the front and rear fixing parts 71, 72, and then buckle the movable cover parts 712, 722, so that the frame 521 can be positioned on the chassis base 30, a state as shown in FIG. 4 is formed.

At this time, the front connecting rod 536 of the second front rod frame 532 against the disc body 61 is removed, so that the front side rod 535 and the rear side rod 533 can be moved towards the chassis base 30 in conjunction with each other. direction swing, and drive the second slider 523 to slide along the frame 521 in a direction away from the second front rod frame 532, so that the second rear rod frame 531 and the second front rod frame 532 are both separated from the first rod frame 532. The second unfolded position swings to the second retracted position, and then drives the top plate unit 6 to close to the chassis base 30, and finally moves the legs 32 towards the chassis base 30 to the storage position, and all is completed. Folding action, and then present the fully folded state as shown in Figure 2.

As shown in FIG. 9, it is worth noting that when the fastening portion 427 of the positioning member 42 is released from the fastening portion 339, the base body 421 can be automatically pushed back to the position shown in FIG. The shown position of the limiting end 338 adjacent to the chute 336, at the same time, the pulling body 422 and the locking body 423 are also linked to return to the position together with the base body 421, so that when the slider 41 moves to the limiting end 338 , it can be resisted by the positioning member 42 and positioned.

Through the above description, it is obvious that the dual-purpose vehicle for toddlers and dining chairs of the present invention has the following effects and advantages, so it can really achieve the purpose of the present invention.

1. The utility model utilizes the lower link unit 51, the connecting unit 52 and the upper link unit 53 to be expanded into two heights suitable for toddlers and meals respectively. Therefore, the utility model has both a walker and a The efficacy and advantages of the function of the dining chair.

2. The utility model forms a dining chair for infants that is directly placed next to the dining table to facilitate feeding infants by means of unfolding the upper and lower link units 53, 51 and opening the legs 32, and does not need to purchase additional special chairs for infants The dining chair has the functions and advantages of being convenient to use and avoiding waste.

Claims (13)

1. A dual-purpose vehicle for toddlers and dining chairs, comprising a chassis unit, a positioning unit arranged on the chassis unit, a positioning unit arranged on the chassis unit and connected with the positioning unit and able to be retracted relative to the chassis unit A link mechanism for closing and unfolding, a top plate unit installed on the link mechanism at a distance from the chassis unit, and a fixing unit installed on the chassis unit for fixing the link mechanism, which Features: The chassis unit includes a centrally hollow chassis base, and a plurality of rollers arranged at intervals along the periphery of a bottom surface of the chassis base, the chassis base has two side blocks arranged at intervals, and a front end connected to the side blocks block and a backend block; The positioning unit includes two sliding parts respectively arranged on the side blocks and sliding and rotating along the front and rear directions, and two positioning parts respectively arranged on the side blocks for fixing and releasing the sliding parts; The linkage mechanism includes a lower linkage unit, a connecting unit, and an upper linkage unit; The lower link unit includes a first rear rod frame pivotally connected to the side block, and a first front rod frame cross-jointed with the first rear rod frame and assembled on the sliding member. A front rod frame and the first rear rod frame can swing relative to the first retracted position and the first unfolded position of the chassis seat; The connecting unit includes a frame installed on the top of the lower link unit, two first sliding sleeves and two second sliding sleeves fitted on the frame along the front-rear direction, the frame and the The first front rod frame is pivotally connected, and the first sliding sleeve is pivotally connected to the first rear rod frame; The upper link unit includes a second rear rod frame pivotally connected to the second sliding sleeve, and a second front rod frame cross-jointed with the second rear rod frame, the second front rod frame The second rear rod frame can swing relative to the second retracted position and the second expanded position of the chassis seat; The top plate unit includes a plate body which is pivotally connected to the second rear pole frame and fixed by the second front pole frame and is provided with a hollow accommodation groove, and a plate body which is installed on the plate body and juxtaposed into the seat in the accommodating groove; The fixing unit includes a front end block and a rear end block installed on the chassis seat respectively, and a front fixing part and a rear fixing part for fixing the frame. 2. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 1, characterized in that: The chassis unit also includes a plurality of feet mounted on the chassis base in a staggered manner with the rollers, and the feet can be in a storage position and a stand position relative to the chassis base. 3. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 2, characterized in that: The toddler and dining chair dual-purpose vehicle also includes a pedal installed on the frame for the occupants to place their feet. 4. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 1, characterized in that: The first rear rod frame of the lower link unit has two rear side rods respectively pivotally connected between the side block and the first sliding sleeve, and a rear connecting rod connected to the rear side rods, The first front rod frame has two front side rods which are respectively cross-pivotally assembled with the rear side rods on the slider, and a front connecting rod connected to the front side rods, and the front side rods The rear side bar can be linked with each other so as to be in the first retracted position and the first unfolded position relative to the chassis base. 5. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 1, characterized in that: The second rear rod frame of the upper link unit has two rear side rods that are respectively pivotally connected between the disc body of the top plate unit and the second sliding sleeve, and one connecting the rear side rods. The rear link, the second front bar frame has two front side bars that are respectively cross-pivotally installed with the rear side bar and pivotally connected to the frame, and a front link connecting the front side bar , the front side bar and the rear side bar can be interlocked to be located at the second retracted position and the second unfolded position relative to the chassis base. 6. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 1, characterized in that: Both side blocks of the chassis seat have a body connecting the front and rear end blocks, and an assembly adjacent to the front end block and extending from the body toward the center of the chassis seat, the assembly has An upright side wall spaced apart from the body, a surrounding wall extending from the periphery of the side wall toward the body and matching with the side wall to define an accommodating chamber, and an edge formed on the side wall A chute arranged in the front and rear directions and communicated with the accommodating chamber, the chute has a retracting end and a limiting end arranged oppositely, and the sliding member is limited to the retracting end and the limiting end of the chute The positioning part is installed on the surrounding wall and can be pulled. 7. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 6, characterized in that: The positioning part of the positioning unit has a base body located in the accommodating chamber and adjacent to the limiting end of the chute, a base body extending upwards from the base body in an upright direction to pass through and be installed on the surrounding wall and can A wrenching body that is pulled to move back and forth, a columnar locking body that extends from the base body in a front-rear direction and away from the retracting end and is installed on the surrounding wall, and a locking body arranged along the locking body And resist against the elastic body between the base body and the surrounding wall. 8. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 7, characterized in that: The locking body of the locator has a shaft portion extending from the base body and mounted on the surrounding wall, and a shaft portion opposite to the base body so that the shaft portion The shaft part is movably arranged on the surrounding wall without falling off the head part, and the elastic body is arranged along the shaft part. 9. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 8, characterized in that: The elastic body of the positioning member is a spring. 10. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 9, characterized in that: The assembly body of the side block also has a fastening portion arranged on the surrounding wall for blocking the pulling body. 11. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 10, characterized in that: The fastening part of the assembly body is a flange, and the wrenching body has a fastening part correspondingly fastened and fixed on the fastening part. 12. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 1, characterized in that: The front and rear fixing parts of the fixing unit all have a support part installed on the front and rear end blocks respectively for the frame to place, and a support part pivotally connected to the support part and can be relative to the support part. The supporting part is a movable cover part for opening and fastening. 13. The dual-purpose vehicle for toddlers and dining chairs as claimed in claim 1, characterized in that: The disc body of the top disc unit also has a placement portion formed in front of a top surface.

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