CN201566675U - Backrest structure of baby carriage - Google Patents

Abstract

The utility model provides a backrest structure of a baby carriage, which is characterized in that a holding part consisting of a male holding block and a female holding block is assembled on a backrest support, one end of a stay cord is assembled on the male holding block and the female holding block, the other end of the stay cord is connected with a clamping rod, the backrest support is pivoted with an adjusting seat, and the adjusting seat is provided with a plurality of positioning grooves to be clamped with the clamping rod correspondingly; therefore, when the inclination angle of the backrest support is to be adjusted, the male holding block and the female holding block are held together by a single hand, the pull rope can be pulled, and the clamping rod is driven to be separated from the clamping of the positioning groove of the adjusting seat, so that the effect of adjusting the inclination angle of the backrest support is conveniently achieved.

Description

Stroller Backrest Structure

technical field

The utility model relates to a backrest structure of a baby carriage, in particular to a backrest structure of a baby carriage which is composed of a grip part, a pull cord, a locking lever and an adjustment seat, which has a simple structure design and can conveniently achieve the effect of adjusting the inclination angle of the backrest bracket. .

Background technique

Please refer to Fig. 8, which is an existing structure for adjusting the seat back of a stroller, in which the front frame 61, the rear frame 62 and the cross bar 63 are connected in an A shape, and the joints between the rear frame 62 and the cross bar 63 A seat bar 64 is obliquely set at the middle section of the front frame 61, and a seat back frame 7 is pivotally arranged at the middle section of the seat bar 64, and an angle adjustment seat is straddled between the seat back frame 7 and the middle section of the rear frame 62. 8. In addition, a cloth cover is put on the front end of the chair back frame 7 and the seat bar 64; wherein, the chair back frame 7 is mainly fixed at one end of the angle adjustment seat 8 by a pivoting body 72 in the middle section of a main leaning bar 71, And a linkage joint 73 is pivotally set at the top of the main leaning rod 71, a support rod 74 is sleeved above the linkage joint 73, and a pull rod 75 is connected to the through hole above the linkage joint 73 and the pivot body 72. During;

Hereby, please refer to Fig. 9, when the inclination angle of the seat back is to be adjusted, both hands apply force to the angle adjustment seats 8 located on both sides of the stroller at the same time, at this moment, the main leaning rod 71 will gradually incline and be pivoted on the main seat. The interlocking joint 73 at the top of the leaning rod 71 is bent due to the traction of the pull rod 75, and as the inclination angle of the main leaning rod 71 gradually increases, the bending degree of the interlocking joint 73 also increases accordingly. In order to achieve the effect of adjusting the angle of the chair back.

However, it can be seen from the above structural description that the existing structure for adjusting the seat back of the stroller utilizes linkage of multiple rod bodies in structure to achieve the effect of adjusting the angle of the seat back. It also takes a lot of work. In addition, in the operation of adjusting the angle of the seat back, both hands must be applied to the angle adjustment seats on both sides of the stroller at the same time to adjust the angle of the seat back. Therefore, the angle adjustment of the seat back It is extremely inconvenient to operate.

Utility model content

The main purpose of the utility model is to provide a baby carriage backrest structure with simple structural design, low cost, and convenient adjustment of the inclination angle of the backrest bracket.

In order to achieve the above-mentioned implementation purpose, the designer proposes the following structure of the backrest of the baby stroller. Mainly, the male and female grip blocks are assembled on the backrest bracket, and an embedded chamber is formed on the female grip block, and the male grip block is placed on the opposite female grip One end of the grip block is provided with an inlay part that can be fitted with the corresponding fitting chamber of the female grip block, and then one end of the drawstring is connected to each of the male grip block and the female grip block, and the other end of the drawstring is connected with a locking lever , and the locking lever is installed on the backrest bracket, and the adjustment seat is pivotally connected to the backrest bracket, and a plurality of positioning grooves are provided on the adjustment seat, so as to be locked relative to the locking lever.

Specifically, the backrest structure of the baby carriage proposed by the utility model is assembled with male and female grip blocks on the backrest bracket, and an embedded chamber is formed on the female grip block, and the male grip block is positioned at one end of the opposite female grip block. There is an inlay part that can be mated with the inlay chamber of the female grip block, and then one end of the drawstring is connected to each of the male grip block and the female grip block, and a locking lever is connected to the other end of the drawstring, so that The locking lever is installed on the backrest bracket, and the adjustment seat is pivotally connected to the backrest bracket, and a plurality of positioning grooves are arranged on the adjustment seat, so as to be locked relative to the locking lever.

The above-mentioned backrest structure of the stroller, wherein, the backrest bracket is further provided with two opposite long slot holes at the assembling part of the male and female grip blocks, and an engaging column is provided at the assembly of the male and female grip blocks, so as to be respectively inserted into the backrest bracket in the two long slots.

In the above structure of the backrest of the stroller, the male and female grips are further formed with sleeves to be sleeved and assembled with the backrest bracket.

In the above-mentioned backrest structure of the stroller, the male and female grip blocks are further assembled with engaging posts, and one end of the pull cord is further assembled with a buckle to be buckled and assembled correspondingly with the engaging posts of the male and female grip blocks.

In the backrest structure of the baby carriage mentioned above, a plug is further provided at the end of the pull cord connected to the catch lever, and a bolt hole is further provided on the catch lever to correspond to the plug of the pull cord and to be inserted into the assembly. catch.

The above-mentioned backrest structure of the stroller, wherein, the catch lever is further formed with a hole, and an elastic member is further accommodated in the hole, and a fixing pin is provided to pass through the backrest bracket, and then pass through the hole of the catch lever. the hole, so that one end of the elastic member is against the fixing pin, and the other end is against the end of the hole.

In the above structure of the backrest of the stroller, the fixing pin further passes through the adjustment seat so that the adjustment seat is pivotally connected to the backrest bracket.

In the above structure of the backrest of the stroller, the bottom end of the locking lever is further formed with an inclined guide surface.

In the above structure of the backrest of the stroller, the backrest bracket is further shaped into a hollow shape for the pull cord and the latch lever to be installed inside.

In the above structure of the backrest of the stroller, a set of vertical holes is further provided on the bottom side of the adjustment seat.

Thereby, in the backrest structure of the baby carriage proposed by the utility model, when it is desired to adjust the inclination angle of the backrest support, it is only necessary to hold the male and female holding blocks together with one hand, then pull the pull cord, and then drive the locking lever to disengage from the pair. The catch of the positioning groove of the adjustment seat is convenient to achieve the effect of adjusting the inclination angle of the backrest support.

Description of drawings

Fig. 1 is the overall figure of the utility model;

Fig. 2 is a three-dimensional exploded view of the utility model;

Figure 3 is a front sectional view of the utility model;

Fig. 4 is a partially enlarged side sectional view of the utility model;

Fig. 5 is the use state figure (1) of the utility model;

Fig. 6 is the use state figure (2) of the utility model;

Fig. 7 is the use state figure (3) of the utility model;

Fig. 8 is the side view of prior art;

Fig. 9 is a diagram of the state of use in the prior art.

Explanation of main component labels:

(this utility model)

1 Backrest bracket 10 Hollow part

11 Beam 12 Straight bar

121 Perforation 13 Slotted hole

14 Slotted hole 15 Fixed pin

2 Grip 21 Male Grip

211 Insert 212 Socket

213 Joint post 22 Female grip block

221 Insert Chamber 222 Sleeve

223 Engagement post 3 Pull cord

31 Buckle 32 Plug

4 latch lever 41 keyhole

42 Hole 43 Elastic

44 Inclined guide surface 5 Adjusting seat

51 Opening part 52 Through hole

53 Positioning groove 54 Group vertical hole

(current technology)

61 Front frame 62 Rear frame

63 Crossbar 64 Seatpost

7 Chair Back Frame 71 Main Leaner

72 Pivot body 73 Linkage joint

74 Top leaning rod 75 Pull rod

8 Angle adjustment seat

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation of the present utility model is now described with reference to the accompanying drawings:

First, please refer to Figures 1 and 2, the structure of the backrest of the stroller proposed by the present invention is composed of a backrest support 1, a grip 2, a drawstring 3, a locking lever 4 and an adjustment seat 5, wherein:

The backrest bracket 1 is formed with a crossbeam 11, and is bent and extended from the two ends of the crossbeam 11 to extend down with a straight rod 12. Please also refer to FIG. 1 The beam 11 is provided with two opposite long slotted holes 13, 14, and the two straight rods 12 are provided with perforations 121;

This grip 2 comprises two mated male and female grip blocks 21, 22, so that the female grip block 22 is provided with an embedded chamber 221 for the corresponding embedded portion 211 of the male grip block 21, and then the male and female grip blocks The grip blocks 21, 22 are formed with sleeves 212, 222 to be socketed with the crossbeam 11 of the backrest bracket 1, and the sleeves 212, 222 of the male and female grip blocks 21, 22 are set with engaging columns 213, 223, and make the joint posts 213,223 of the male and female grip blocks 21,22 be inserted into the slotted holes 13,14 provided by the backrest support 1 respectively;

The drawstring 3 is accommodated in the hollow portion 10 of the backrest bracket 1, and a clasp 31 is assembled at one end of the drawstring 3 for the engagement posts 213, 223 of the male and female holding blocks 21, 22 to be buckled correspondingly, A plug 32 is assembled at the other end of the stay cord 3;

The catch lever 4, please also refer to Fig. 4, is assembled in the hollow portion 10 of the two straight rods 12 of the backrest bracket 1, so that the upper end of the catch lever 4 is provided with a bolt hole 41 for the pull cord The plug 32 of 3 is correspondingly plugged in, and a holding hole 42 is formed on the catch lever 4 in addition, and an elastic member 43 is accommodated in the holding hole 42, and then the holding hole 42 is connected with the straight rod 12 of the backrest support 1. The provided perforation 121 corresponds to that for the fixed pin 15 to penetrate the through hole 52 of the adjustment seat 5, pass through the perforation 121 of the straight rod 12, and then be jointly connected with the receiving hole 42 of the locking rod 4, so that the elastic One end of the piece 43 is against the fixed pin 15, and the other end is against the end of the receiving hole 42, and an inclined guide surface 44 is formed at the bottom of the catch lever 4;

The adjustment seat 5 is formed with an opening 51, and a through hole 52 is formed on the upper edge of the opening 51, and a plurality of positioning grooves 53 are formed on the bottom edge of the opening 51, for the latch lever 4 to engage correspondingly. In addition, a group of vertical holes 54 are provided on the bottom side of the adjustment seat 5 to be assembled with the main body of the stroller.

Accordingly, when using and implementing, please refer to Fig. 1 again, the backrest structure of the baby carriage of the present invention is fixedly connected to the main body of the baby carriage through the vertical hole 54 provided on the bottom side of the adjustment seat 5;

Please also refer to Figure 5. When a child sits in a stroller and wants to make the child lie comfortably and adjust the angle of the backrest, the user only needs to hold the male and female holding blocks 21 and 22 together with one hand. At this time, the male and female grip blocks 21, 22 slide in the slotted holes 13, 14 of the backrest bracket 1 by using the joint posts 213, 223 assembled on the sleeves 212, 222, so that the male grip blocks 21 are embedded The part 211 is correspondingly fitted with the fitting chamber 221 of the female grip block 22;

At the same time, please also refer to Fig. 6, the stay rope 3 which is fastened to the joint posts 213, 223 of the male and female grip blocks 21, 22 by means of the clasp 31 is pulled upwards, and the other end of the stay rope 3 is driven. The connected catch lever 4 moves upward;

At this time, the bottom end of the catch lever 4 is out of the engagement state with the positioning groove 53 of the adjustment seat 5, and at the same time, the elastic member 43 assembled in the hole 42 of the catch lever 4 rises as the catch lever 4 is pulled up. , and is compressed;

After the catch lever 4 is disengaged from the catch with the positioning groove 53 of the adjustment seat 5, the backrest bracket 1 combined with the catch lever 4 can adjust the inclination angle;

After the backrest bracket 1 is adjusted to the required angle, please refer to Fig. 7 together, and then the grip of the male and female grip blocks 21, 22 can be released. The compressed elastic member 43 in the 42 can be restored to its original shape, and the locking lever 4 is pushed down and reset, and then is correspondingly locked with the positioning groove 53 set in the relative position of the adjustment seat 5, so as to position the adjusted inclination of the backrest bracket 1 state, and guided by the inclined guide surface 44 formed at the bottom end of the latch lever 4, the insertion of the latch lever 4 into the positioning groove 53 of the adjustment seat 5 is smoother and more reliable.

It can be known from the above structure and implementation that the utility model utilizes the grip part assembled on the backrest bracket to pull the pull cord, and then the pull cord drives the locking lever to break away from the locking state of the positioning groove of the adjustment seat, thereby the simple structural design, That is to say, the effect of adjusting the inclination angle of the backrest bracket can be achieved. Not only the production cost is low, but also the assembly is very convenient and time-saving, and the male and female grip blocks that can be held together by one hand are used as the starting mechanism for starting the angle adjustment of the backrest bracket. In this way, When it is desired to adjust the angle of the backrest bracket, only one hand operation is required to achieve the effect of adjusting the inclination angle of the backrest bracket, which makes the operation more convenient.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. baby cart back rest structure, it is characterized in that, described baby cart back rest structure is assembled with public affairs on back bracket, mother holds piece, be formed with the embedding chamber on the piece and hold in described mother, described public affairs are held piece and are held the corresponding chimeric embedding portion in embedding chamber that piece one end is provided with confession and described mother holds piece in described relatively mother, hold piece and described mother in described public affairs again and hold that each winding has stay cord one end on the piece, and in described stay cord in addition termination be provided with clamping rod, described clamping rod is installed in described back bracket, articulate in described back bracket in addition and adjust seat, and be provided with the positioning groove of the relative clip of a plurality of and described clamping rod in described adjustment seat.

2. baby cart back rest structure as claimed in claim 1, it is characterized in that, described back bracket is further held piece assembling place in described male and female and is provided with two relative long slot bores, holding the piece group in described male and female is provided with bond post in addition, and described bond post is inserted in respectively in two long slot bores of described back bracket.

3. baby cart back rest structure as claimed in claim 1 is characterized in that, described male and female is held piece and further is formed with and the sheathed stack-mounted sleeve of described back bracket.

4. baby cart back rest structure as claimed in claim 1 is characterized in that, described male and female holds on the piece further that winding has described bond post, in addition described stay cord one end further group be provided with the corresponding clasp of establishing winding of buckleing of bond post of holding piece with described male and female.

5. baby cart back rest structure as claimed in claim 1 is characterized in that, the end that described stay cord and described clamping rod join further group is provided with plug, further is provided with the keyhole with the plug corresponding inserted winding of described stay cord in addition on described clamping rod.

6. baby cart back rest structure as claimed in claim 1, it is characterized in that, the enterprising one step forming of described clamping rod has the appearance hole, and in described appearance hole, further be equipped with elastic component, be provided with set pin again, described set pin is arranged in described back bracket and passes the appearance hole of described clamping rod, and described elastic component one end is butted on described set pin, and end is butted on described appearance bore ends in addition.

7. baby cart back rest structure as claimed in claim 6 is characterized in that, described set pin further places described adjustment seat, and described adjustment seat is articulated with described back bracket.

8. baby cart back rest structure as claimed in claim 1 is characterized in that, described clamping rod bottom further is formed with oblique surface.

9. baby cart back rest structure as claimed in claim 1 is characterized in that, described back bracket further is configured as for described stay cord and described clamping rod and is installed in interior hollow form.

10. baby cart back rest structure as claimed in claim 1 is characterized in that, described adjustment seat bottom side further is provided with one group of upright hole.

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