CN104138165B - Backrest linkage mechanism and child seat - Google Patents

Abstract

The present invention discloses a backrest linkage mechanism, which is suitable for installation on a child seat, and the backrest linkage mechanism includes a linkage member and a fixing member fixed to the backrest; one end of the linkage member is provided with a pivoting portion pivotally connected to the child seat, and the other end of the linkage member is provided with a guide portion, and the guide portion is slidably connected to the fixing member. Correspondingly, the present invention also discloses a child seat having the backrest linkage mechanism, and the child seat has a simple structure and can be folded, which is convenient for storage and carrying.

Description

Backrest linkage mechanism and child seat

technical field

The invention relates to a child seat, in particular to a backrest interlocking mechanism enabling the backrest of the child seat to be folded.

Background technique

At present, in general families and restaurants, the seats used with the dining table are ordinary seats that are only suitable for adults. When children need to dine with their families on the dining table, due to the height restriction , then can not have a meal conveniently, also is not convenient for the family to take care of it while having a meal. As a result, special seats for children have appeared on the market. When the child sits on the seat, it can have a height equivalent to that of an adult, which is convenient for family members to take care of it.

At present, the child seats used in the family are generally old models that do not have detachability. Although these seats can bring convenience when used, they will occupy more space when not in use due to their large size. , Inconvenient collection.

Therefore, it is necessary to provide a child seat that is simple in structure, can be folded, and is convenient to store and carry.

Contents of the invention

The object of the present invention is to provide a backrest interlocking mechanism that enables the backrest of a child seat to be folded

Another object of the present invention is to provide a child seat that is simple in structure and can be folded, which is convenient for storing and carrying.

In order to achieve the above object, the present invention provides a backrest linkage mechanism, which is suitable for being installed on a child seat, and the backrest linkage mechanism includes a linkage piece and a fastening piece fixed to the backrest; One end of the linkage is provided with a pivot joint pivotally connected to the child seat, the pivot joint is pivotally connected to the rear foot of the child seat, and the other end of the linkage is provided with a guide, and the guide The part is slidably connected to the fixing part.

In the present invention, the fastening piece is fixed on the backrest, the guiding part is provided on the linkage piece, and the fastening piece is passed through the guiding part, therefore, the The link can be movably connected with the backrest to realize the sliding and rotation of the link relative to the backrest; by pivoting the pivot joint to the child seat, the link When the child seat is folded, it can drive the backrest to rotate and fold, thus playing the role of mutual linkage. The structure is simple, which not only facilitates the child seat to be folded, but also provides convenience for travel and portability. The occupied space of the child seat can be reduced, and the storage is very convenient.

Preferably, one end of the linkage member is bent to form the pivot joint. By bending one end of the link to form the pivot joint, an extra torque can be applied to the pin, so that the folding of the backrest is more labor-saving and quicker.

Preferably, the fixing member is a pin.

Preferably, the guide part is an elongated hole, and the fixing member is passed through the elongated hole.

Correspondingly, the present invention also provides a child seat, comprising a seat board, a backrest, a front leg, a rear leg, a front seat tube and a rear seat tube; the front end of the seat board is pivotally connected to the middle part of the front leg, and the seat The rear end of the plate is pivotally connected to the backrest; the front seat tube is fixed to the seat plate; one end of the rear seat tube is pivotally connected to the front seat tube, and the other end is pivotally connected to the middle part of the rear foot; The upper end of the front foot is pivotally connected to the upper end of the rear foot; the rear foot is provided with a gear adjustment mechanism that can adjust the angle of the backrest; the child seat also includes the backrest linkage mechanism, the backrest linkage The moving mechanism includes a linking piece and a fastening piece fixed on the backrest; one end of the linking piece is provided with a pivot joint with the child seat, and the other end of the linking piece is provided with a a guide part, the fixing part slides under the guide of the guide part, and the pivot part is pivotally connected to the rear foot.

Compared with the prior art, since the present invention pivotally connects the front end and the rear end of the seat plate to the front legs and the backrest respectively, the two ends of the rear seat tube are connected to the front seat tube and the backrest respectively. The rear feet are pivotally connected, and the pivot joint is pivotally connected to the rear feet. Therefore, when the child seat is folded, the front feet and rear feet rotate in opposite directions, and the linkage of the rear feet is pivotally connected. The parts drive the backrest to pivot through the pins and get close to the rear feet, so they play a role of mutual linkage and simple structure. It takes up less space and is very convenient for storage.

Preferably, the child seat further includes a backrest positioning mechanism, the backrest positioning mechanism is slidably mounted on the backrest and selectively engaged with the gear adjustment mechanism, the rear seat tube is connected to the When the pivoted end of the front seat tube pivots upwards, the backrest positioning mechanism moves with the backrest and disengages from the gear adjustment mechanism. After the child seat is opened, the setting of the backrest positioning mechanism enables the backrest to be fixed and bear the weight of the child, and by engaging with different gears of the gear adjustment mechanism, the backrest can be made to The backrest of the above-mentioned child seat has multiple inclination angles to meet the different needs of consumers.

Preferably, the child seat further includes a locking mechanism arranged between the front seat tube and the rear seat tube, and the locking mechanism locks or unlocks the front seat tube and the rear seat tube. By setting the engaging mechanism, when the child seat is unfolded, the rear seat tube is engaged with the front seat tube, and the child seat is locked; when the rear seat tube is released from the front seat tube, When the lock is disengaged, the child seat can be folded.

Preferably, the child seat further includes a sliding sleeve, and the sliding sleeve is pivotally connected to the backrest with the fixed member as a pivot shaft; the linkage member is slidably inserted into the sliding sleeve. inside the set. By arranging the sliding sleeve and inserting the link into the sliding sleeve, the sliding sleeve can cover the guiding part, which not only isolates the guiding part from the outside world, but also prevents debris from sticking to the sliding sleeve. Attached to the guide part, it hinders the sliding of the fixing part and beautifies the appearance of the child seat.

Preferably, the child seat further includes an armrest fixed to the upper end of the front foot. By arranging the armrest, the child is more comfortable on the child seat, and the activities are more convenient.

Description of drawings

Fig. 1 is a perspective view of the child seat of the present invention.

Fig. 2 is a perspective view of another angle of the child seat of the present invention.

Fig. 3 is a side view of the child seat of the present invention.

Fig. 4 is an enlarged view of A in Fig. 1 .

Fig. 5 is an enlarged view at B in Fig. 3 .

Fig. 6 is a schematic diagram of the child seat backrest in the first gear according to the present invention.

Fig. 7 is a schematic diagram of the child seat backrest in the second gear according to the present invention.

Fig. 8 is a schematic diagram of the child seat backrest in the third gear according to the present invention.

Fig. 9 is a schematic diagram of a certain state during the folding process of the child seat of the present invention.

Fig. 10 is a side view of the fully folded child seat of the present invention.

Fig. 11 is a perspective view of the fully folded child seat of the present invention.

Fig. 12 is a perspective view of another embodiment of the child seat of the present invention.

Fig. 13 is an enlarged view at point C in Fig. 12 .

detailed description

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the child seat 1 of the present invention includes a seat plate 10, a backrest 11, a front leg 12, a rear foot 13, a front seat tube 14, two rear seat tubes 15, and two seats respectively arranged on the backrest 11. The backrest linkage mechanism 16 on both sides, the two armrests 19 fixed on the upper ends of the front legs 12 and the backrest positioning mechanism 20 slidably arranged on the backrest 11 .

3 to 5, the backrest linkage mechanism 16 includes a linkage piece 161 and a fastening piece fixed to the backrest 11, one end of the linkage piece 161 extends toward the rear foot 13, and The backrest 11 is bent outwardly to form a pivot portion 163 , and the other end of the link 161 defines a guiding portion. Specifically, in this embodiment, the fixing member is a pin 162, the guiding part is an elongated hole 164, and the pin 162 slides through the elongated hole 164 along the length direction. Inside the elongated hole 164. Of course, it is also possible to set the fixing piece as a cylindrical protrusion, and set the guide part as a chute, so that the purpose of sliding the fixing piece through the guide part can also be achieved. .

Please refer to Figures 1 to 3 and Figures 6 to 8, the front end of the seat plate 10 is pivotally connected to the middle of the front foot 12, and the rear end of the seat plate 10 is pivotally connected to the backrest 11; The front seat tube 14 is fixed with the seat plate 10; one end of the rear seat tube 15 is pivotally connected with the front seat tube 14, and the other end is pivotally connected with the middle part of the rear leg 13; the upper end of the front leg 12 is connected with the rear leg 13 The upper end is pivotally connected; the rear foot 13 is provided with a gear adjustment mechanism 130 that can be matched with the backrest positioning mechanism 20 to adjust the inclination angle of the backrest 11; the backrest positioning mechanism 20 is engaged with the gear The different states of the position adjustment mechanism 130 can adjust the inclination angle of the backrest 11 and fix the angle and position of the backrest 11. The gear position adjustment mechanism 130 in the present invention has three gears to meet the needs of different sitting postures. Improve seat comfort. The pivot portion 163 of the linkage member 161 is pivotally connected to the rear foot 13 . When the pivoted end of the rear seat tube 15 and the front seat tube 14 pivots upwards, the backrest positioning mechanism 20 moves upward along with the backrest 11 and disengages from the gear adjustment mechanism 130 state.

Please refer to FIG. 2 again. In this embodiment, the unfolding and collapsing of the child seat 1 is realized through the engaging mechanism 17 provided at the bottom of the seat plate 10 . The engaging mechanism 17 locks or unlocks the front seat tube 14 and the rear seat tube 15 . By setting the engaging mechanism 17, when the child seat 1 is unfolded, the rear seat tube 15 is engaged and fixed with the front seat tube 14, so that the child seat 1 is locked in the unfolded state; When the engaging mechanism 17 unlocks and pivots the rear seat tube 15 and the front seat tube 14 , the child seat 1 can be folded so that the front legs 12 and the rear legs 13 are close to each other.

The following is a brief introduction to the folding process of the child seat 1 of the present invention with reference to FIGS. 9 to 11 . After the locking mechanism 17 is released, the handle (not shown) arranged at the rear end of the seat plate 10 is pulled to drive the pivot joint of the two seat tubes to move upward, and the front seat tube 14 and the rear seat tube 15 Synchronous relative inward pivoting, at this time the rear end of the seat plate 10 fixed to the front seat tube 14 and the lower end of the backrest 11 also move up accordingly, the front legs 12 and the rear legs 13 can be relatively inward When pivoting, the linkage 161 is moved and rotated under the traction of the backrest 11 and the rear foot 13. During the pivoting process of one end of the rear seat tube 15, the backrest positioning mechanism 20 follows the The backrest 11 moves upwards and breaks away from the restriction of the gear adjustment mechanism 130, and the linkage 161 guides the backrest 11 under the influence of gravity through the cooperation of the pin 162 and the elongated hole 164. The lower part is rotated downward relative to the seat plate 10, close to the rear foot 13, and the child seat 1 is fully folded as shown in FIG. 11 .

Conversely, if it is necessary to unfold the child seat 1 from the folded state, it is not necessary to turn over the drooping back rest 11, but only need to separate the front legs 12 from the rear legs 13 and pivot outwards relatively. The front seat tube 14 and the rear seat tube 15 also pivot outwards synchronously, and the linkage member 161 connected between the backrest 11 and the rear foot 13 also rotates accordingly. The backrest 11 is driven by the linkage 161, that is, pushed down by the end of the linkage 161 having the elongated hole 164, and gradually rotates upwards around the rear end of the seat plate 10 until After the gear adjustment mechanism 130 engages with the backrest 11 again, the deployment of the child seat 1 is completed.

As shown in Figure 12 and Figure 13 is the second embodiment of the present invention, in this embodiment, the structure of the child seat is basically the same as that of the first embodiment, the difference is that the child seat also includes two sliding sleeves 18 , the two sliding sleeves 18 are respectively pivotally connected to the two sides of the backrest 11 with the pin 162 as a pivot shaft; the linkage member 161 is slidably inserted into the sliding sleeves 18 . By setting the sliding sleeve 18 and inserting the link 161 into the sliding sleeve 18, the sliding sleeve 18 can cover the elongated hole 164, which not only makes the elongated hole 164 and the outside world Insulation prevents sundries from adhering to the elongated hole 164 , hinders the sliding of the pin 162 , and beautifies the appearance of the child seat 1 .

Compared with the prior art, the present invention pivotally connects the front end and rear end of the seat plate 10 to the front leg 12 and the back rest 11 respectively, and connects the two ends of the rear seat tube 15 to the rear seat tube 15 respectively. The front seat tube 14 is pivotally connected to the rear leg 13, and the pivot joint 163 is pivotally connected to the rear leg 13. Therefore, when the child seat 1 is folded, the front leg 12 and the rear leg 13 face each other. Rotate, the linkage 161 pivotally connected to the rear foot 13 drives the backrest 11 to pivot and approach the rear foot 13 through the pin 162, thus playing the role of mutual linkage, the structure is simple, and the entire child seat The chair can not only be folded conveniently, which is convenient for traveling and carrying, but also occupies a small space after being folded, which is very convenient for storage. In addition, by setting the gear adjustment mechanism 130, when the child seat 1 is unfolded, the gear adjustment mechanism 130 can support the backrest 11 to ensure the stability of the child seat 1. and safety; and, the angle between the backrest 11 and the seat plate 10 can be adjusted according to the needs of use, so that the child sitting on the child seat 1 feels more comfortable.

The gear adjustment mechanism 130 and the engaging mechanism 17 mentioned in the present invention are well known to those skilled in the art and will not be described in detail here.

The above disclosures are only preferred examples of the present invention, and of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (9)

1. one kind leans against interlinked mechanism, it is adaptable to installed in children's seat, it is characterised in that：The interlinked mechanism that leans against includes company Moving part and it is fixed on the fastener leaned against；One end of the moving part is provided with the articulated section being pivotally connected with the children's seat, The articulated section is articulated in the rear foot of the children's seat, and the other end of the moving part offers a guidance part, the guiding Portion is slidably connected to the fastener.

2. lean against interlinked mechanism as claimed in claim 1, it is characterised in that：One end of the moving part is bent to form the pivot Socket part.

3. lean against interlinked mechanism as claimed in claim 1, it is characterised in that：The fastener is pin.

4. lean against interlinked mechanism as claimed in claim 1, it is characterised in that：The guidance part is elongated hole, the fastener It is arranged in the elongated hole.

5. a kind of children's seat, including seat board, lean against, front foot, the rear foot, preceding seat pipe and rear seat pipe；The front end pivot joint of the seat board In the middle part of the front foot, the rear end of the seat board leans against pivot joint with described；The preceding seat pipe is fixed with the seat board；After described One end of seat pipe is pivotally connected with the preceding seat pipe, and the middle part of the other end and the rear foot is pivotally connected；The upper end of the front foot and the rear foot Upper end is pivotally connected；The gear adjusting mechanism of the adjustable angle leaned against is set on the rear foot；It is characterized in that：The children Seat also includes leaning against interlinked mechanism described in any one of Claims 1-4.

6. children's seat as claimed in claim 5, it is characterised in that：The children's seat also includes leaning against detent mechanism, institute State lean against detent mechanism be slidably mounted to it is described lean against and be selectively sticked in the gear adjusting mechanism, the rear seat pipe with When one end pivot of the preceding seat pipe pivot joint is moved up, the detent mechanism that leans against is moved out and the gear with described lean against The engaging of governor motion.

7. children's seat as claimed in claim 5, it is characterised in that：The children's seat also includes being arranged on the preceding seat pipe And the snap fastener between rear seat pipe, the snap fastener locked or release the lock to the preceding seat pipe and rear seat pipe.

8. children's seat as claimed in claim 5, it is characterised in that：The children's seat also include sliding sleeve, the sliding sleeve with The fastener is that drive-connecting shaft is articulated in described lean against；Slidably grafting enters in the sliding sleeve moving part.

9. children's seat as claimed in claim 5, it is characterised in that：The children's seat also includes being fixed in the front foot The handrail at end.