CN113335155B - A child safety seat - Google Patents

Abstract

The invention discloses a child safety seat which comprises a shell, a seat cushion and a backrest, wherein the front part of the seat cushion is rotatably connected with the front part of the shell, the rear part of the backrest is rotatably connected with the rear part of the shell, one of the two parts of the front part of the seat cushion and the rear part of the backrest can also be arranged in a sliding manner relative to the shell, the front part of the backrest is rotatably connected with the rear part of the seat cushion, an included angle is formed between the backrest and the seat cushion, the child safety seat also comprises an adjusting rod which is movably arranged on the shell and used for adjusting the included angle between the backrest and the seat cushion, and the adjusting rod is at least matched with one of the two parts of the seat cushion and the backrest. The angle between the backrest and the seat cushion can be adjusted by the child safety seat, so that the child safety seat has multiple use states such as sitting posture and lying posture, and the comfort of the child safety seat during use can be improved. Meanwhile, the angle adjusting mode between the backrest and the seat cushion of the child safety seat is simple in structure and convenient to operate.

Description

A child safety seat

technical field

The invention relates to the technical field of children's products, in particular to a child safety seat.

Background technique

A child safety seat is mainly used to carry an infant and place the infant on a car seat or a trolley. A child safety seat usually includes a shell, a backrest and a seat cushion respectively arranged in the shell. To improve the comfort of the child safety seat, the angle between the backrest and the seat cushion can generally be adjusted.

In the prior art, the angle between the backrest and the seat cushion is generally adjusted by a structure inside the housing, and when the infant is inside the child safety seat, it cannot be directly operated. Moreover, the adjustment structure is complex and inconvenient to operate.

SUMMARY OF THE INVENTION

The purpose of the present invention is to address the deficiencies in the prior art, to provide a child safety seat, which can still adjust the angle between the backrest and the seat cushion when a child rides in the child safety seat, and Easy to adjust and operate.

To achieve the above object, the technical scheme adopted in the present invention is:

A child safety seat includes a shell, a seat cushion and a backrest, the front part of the seat cushion and the front part of the shell are rotatably connected through a first shaft, and the rear part of the backrest is connected with the front part of the shell. The rear part is rotatably connected through a second shaft, and one of the two parts of the front part of the seat cushion and the rear part of the backrest can also be slidably arranged relative to the shell, and the front part of the backrest is connected to the The rear part of the seat cushion is rotatably connected through a third shaft, an included angle is formed between the backrest and the seat cushion, and the child safety seat further includes a movable setting on the shell for adjusting the backrest and the seat cushion. The adjusting rod of the included angle between the seat cushions is matched with at least one of the two parts of the seat cushion and the backrest.

Preferably, the adjusting rod and the housing are rotatably connected through a fourth shaft.

Further, the adjusting rod is provided with a first matching portion, the seat cushion and/or the backrest is provided with a second matching portion that is abutted against the first matching portion, and the first matching portion arranged below the second matching portion.

Further, the adjustment rod is also provided with an operation part for manual operation during adjustment, the operation part extends from the rear of the casing to the outside of the casing, and the operation part and the The first matching parts are respectively located on opposite sides of the fourth shaft.

Preferably, one of the front part of the seat cushion and the front part of the housing is provided with a first chute, and the first shaft is rotatably provided on the front part of the seat cushion and on the other of the two front parts of the housing, the first shaft is located in the first chute and can be slidably arranged along the lengthwise extending direction of the first chute; or A second chute is provided on one of the rear parts of the backrest and the rear part of the shell, and the second shaft is rotatably arranged on the rear part of the backrest and the rear part of the shell. On the other of the two rear parts, the second shaft is located in the second chute and is slidably disposed along the lengthwise extending direction of the second chute.

Preferably, the child safety seat further comprises a lock for locking the relative positions of the adjustment rod and the housing at different gear positions to form different angles between the backrest and the seat cushion structure, the locking structure is provided between the housing and the adjustment rod.

Further, the locking structure includes a plurality of gear slots provided on the housing and a lock pin arranged on the adjusting rod and matched with the gear slots, when the locking structure is in a locked state When the lock pin is located in the gear groove, when the locking structure is in an unlocked state, the lock pin is disengaged from the gear groove.

Further, the casing is also provided with a connecting groove that communicates with the two adjacent gear grooves and is matched with the locking pin, and the connecting groove is opposite to the casing along the adjustment rod. The movement direction extends, the lock pin can be slidably arranged on the adjustment rod, and the lock pin can slide relative to the adjustment rod to be disengaged from the gear groove into the connection groove, or from the connection out of the groove into the gear groove.

Further, the locking structure further includes an elastic piece for driving the lock pin to automatically disengage from the connecting groove and slide into the gear groove, and two parts of the elastic piece are respectively arranged on the on the locking pin and the housing.

Further, the adjustment rod includes side rods located on the left and right sides of the casing and a cross rod connected between the side rods on the left and right sides, and the side rods on the left and right sides are respectively connected with the casing. The body is rotationally connected, the side rods on each side are matched with at least one of the two parts of the seat cushion and the backrest, and the locking structures are respectively provided on the side rods and the shell on each side The child safety seat further includes an unlocking handle used to drive the locking pins on both sides to slide relative to the side rods and disengage from the gear grooves into the connecting grooves. The handle is respectively connected with the locking pins on the left and right sides.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: when the child safety seat of the present invention is operated to move the adjusting rod relative to the housing, the adjusting rod can be connected to the backrest and/or seat cushion through the adjusting rod. The cooperation between them drives the relative rotation between the backrest and the seat cushion, so that the angle between the backrest and the seat cushion changes, so that the child safety seat has a variety of use states such as sitting posture and lying posture, which can improve the child safety seat. The comfort of the chair when in use. Meanwhile, the angle adjustment method between the backrest and the seat cushion of the child safety seat is simple in structure and easy to operate.

Description of drawings

1 is a schematic side view of the child safety seat of the present embodiment (the adjustment lever is at the first gear position);

2 is a schematic top view of the child safety seat of the present embodiment (the adjustment lever is at the first gear position);

Accompanying drawing 3 is the sectional schematic diagram along line A-A in Fig. 2;

4 is a schematic bottom view of the child safety seat of the present embodiment (the adjustment lever is at the first gear position);

FIG. 5 is a schematic top view of the child safety seat of this embodiment (the adjustment lever is at the first gear position);

Accompanying drawing 6 is the sectional schematic diagram along A-A line in accompanying drawing 5;

7 is a schematic side view of the child safety seat of the present embodiment (the adjustment lever is at the second gear position);

8 is a schematic top view of the child safety seat of the present embodiment (the adjustment lever is at the second gear position);

9 is a schematic cross-sectional view along line A-A in FIG. 8;

10 is a schematic bottom view of the child safety seat of the present embodiment (the adjustment lever is at the second gear position);

FIG. 11 is a schematic top view of the child safety seat of this embodiment (the adjustment lever is at the second gear position);

FIG. 12 is a schematic cross-sectional view along line A-A in FIG. 11 .

Among them: 1. Shell; 11. Gear slot; 12. Connection slot; 2. Backrest; 3. Seat cushion; 31. First chute; 32. Second matching part; 41. First shaft; 42. Two shafts; 43, the third shaft; 44, the fourth shaft; 5, the adjusting rod; 51, the first matching part; 52, the operation part; 53, the third chute; 5a, the side rod; 5b, the cross rod; 61 , lock pin; 62, elastic piece; 7, unlock handle.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 12 , the child safety seat of the present invention includes a housing 1 , a backrest 2 and a seat cushion 3 respectively disposed in the housing 1 .

The front part of the seat cushion 3 is rotatably connected to the front part of the shell 1 through the first shaft 41 , the rear part of the backrest 2 is rotatably connected to the rear part of the shell 1 through the second shaft 42 , and the front part of the seat cushion 3 and the backrest 2 are rotatably connected. One of the two parts at the rear of the seat 1 can also be slidably disposed relative to the housing 1 , and the front part of the backrest 2 and the rear part of the seat cushion 3 are rotatably connected through a third shaft 43 . An angle is formed between the backrest 2 and the seat cushion 3, and relative rotation can occur between the backrest 2 and the seat cushion 3, so that the angle formed between the backrest 2 and the seat cushion 3 changes, so that the child safety seat can be There are different usage states. As shown in Figures 1 to 6, the child safety seat is in a sitting position, and as shown in Figures 7 to 12, the child safety seat is in a lying position.

Specifically, one of the front part of the seat cushion 3 and the front part of the casing 1 is provided with a first chute 31, and the first shaft 41 is rotatably disposed on the front part of the seat cushion 3 and the casing 1 On the other of the two parts at the front of the 1, the first chute 31 extends in the front-rear direction, and the first shaft 41 is located in the first chute 31 and is slidable along the lengthwise extending direction of the first chute 31. .

Alternatively, one of the rear parts of the backrest 2 and the rear part of the housing 1 is provided with a second sliding groove, and the second shaft 42 is rotatably arranged on the rear part of the backrest 2 and the rear part of the housing 1 On the other of the two components, the second chute extends in the up-down direction, and the second shaft 42 is located in the second chute and is slidably disposed along the lengthwise extending direction of the second chute.

In this embodiment, the front part of the seat cushion 3 can be rotatably arranged relative to the casing 1 and can be slidably arranged relative to the casing 1 , and the rear part of the backrest 2 can only be arranged rotatably relative to the casing 1 . The first chute 31 is arranged on the seat cushion 31 , and the first shaft 41 is rotatably arranged at the front of the housing 1 .

The child safety seat further includes an adjusting rod 5 movably arranged on the housing 1 , and the adjusting rod 5 is matched with at least one of the two parts of the seat cushion 3 and the backrest 2 . In this way, when the adjusting rod 5 is driven to move relative to the housing 1, the seat cushion 3 and the backrest 2 can be driven to rotate relative to each other through the cooperation between the seat cushion 3 and/or the backrest 2 and the adjusting rod 5, thereby changing the backrest 2 The angle formed between it and the seat cushion 3 changes the use state of the child safety seat.

The adjusting rod 5 is provided with a first matching portion 51 , the seat cushion 3 and/or the backrest 2 is provided with a second matching portion 32 matching with the first matching portion 51 , and the second matching portion 32 is located at the position of the first matching portion 51 . below.

The adjustment rod 5 is also provided with an operation part 52 for manual operation during adjustment. The first matching part 51 is located at the front end of the adjustment rod 5; the operation part 52 is located at the rear end of the adjustment rod 5; The rear of the 1 protrudes to the outside of the housing 1, which is convenient for manual operation.

In this embodiment, the second matching portion 32 is respectively disposed on the rear end portion of the seat cushion 3 and the front end portion of the backrest 2 , and the first matching portion 51 abuts against the front end portion of the backrest 2 and the rear end portion of the seat cushion 3 at the same time. . The adjusting rod 5 is rotatably disposed on the housing 1 through the fourth shaft 44 , that is, the operation part 52 and the first matching part 51 are respectively located on opposite sides of the fourth shaft 44 . When the operation part 52 is pressed down or pulled up, the adjusting rod 5 can be rotated in opposite directions relative to the casing 1 , so that the adjusting rod 5 is in different gear positions on the casing 1 .

The child safety seat also includes a locking structure for locking the relative positions of the adjustment rod 5 and the housing 1 at different gear positions to fix the child safety seat in different states of use. The locking structure is provided on the housing 1 and adjusts between rods 5.

Specifically, the locking structure includes a plurality of gear grooves 11 provided on the housing 1 and a lock pin 61 provided on the adjustment rod 5 and matched with the gear grooves 11 . When the locking structure is in the locked state, the lock pin 61 is located in the gear groove 11 , the relative position of the adjusting rod 5 and the housing 1 is fixed, the adjusting rod 5 cannot rotate relative to the housing 1 , and a gap is formed between the backrest 2 and the seat cushion 3 . The included angle is fixed, and the child safety seat is fixed in a state of use. When the locking structure is in the unlocked state, the locking pin 61 is released from the gear groove 11, and the adjusting rod 5 can be rotated relative to the housing 1, thereby changing the angle formed between the backrest 2 and the seat cushion 3, thereby adjusting the child The state of use of the safety seat.

The lock pin 61 is slidably provided on the adjustment lever 5 . Specifically, the adjustment rod 5 is provided with a third chute 53 matching the lock pin 61 , the third chute 53 extends along the length direction of the adjustment rod 5 , and the lock pin 61 is located in the third chute 53 and can move along the length of the adjustment rod 5 . The longitudinal extension direction of the third chute 53 is slidably provided.

The casing 1 is also provided with a connecting groove 12, which extends along the movement direction of the adjusting rod 5 relative to the casing 1. In this embodiment, the connecting groove 12 extends along the circumferential direction in which the adjusting rod 5 rotates relative to the casing 1. The two ends of the connecting groove 12 are respectively communicated with the two adjacent gear grooves 11 .

The locking pin 61 is matched with the connecting groove 12 , and the locking pin 61 can slide relative to the adjusting rod 5 so as to be disengaged from the gear groove 11 and enter the connecting groove 12 ; or disengage from the connecting groove 12 and enter the gear groove 11 middle. When the locking structure is in the unlocked state, the locking pin is located in the connecting groove 12 .

The locking structure further includes an elastic piece 62 for driving the lock pin 61 to automatically slide into the gear slot 11 from the connection slot 12 , and two parts of the elastic piece 62 are respectively disposed on the lock pin 61 and the housing 1 . In this embodiment, the elastic member 62 adopts a tension spring.

The child safety seat further includes an unlocking handle 7 movably arranged on the housing 1 , and the unlocking handle 7 is connected with the locking pin 61 . When the locking structure is in the locked state, the unlocking handle 7 is operated to drive the locking pin 61 to slide relative to the adjusting rod 5 , so as to escape from the gear groove 11 and enter the connecting groove 12 .

In this embodiment, the connecting slot 12 is located at the rear of the gear slot 11 . When the unlocking handle 7 is operated to drive the locking pin 61 to slide backward relative to the adjusting rod 5 , the locking pin 61 can be disengaged from the gear slot 11 and enter the connecting slot 12 In the middle; the elastic force of the elastic member 62 is used to drive the locking pin 61 to slide forward relative to the adjusting rod 5 .

In this embodiment, the adjusting rod 5 includes side rods 5a located on the left and right sides of the housing 1 and a transverse rod 5b connected between the side rods 5a on the left and right sides. The side rods 5a on the left and right sides are respectively connected to the housing 1 Rotatingly connected, the side bars 5a on each side are matched with at least one of the two parts of the seat cushion 3 and the backrest 2 . The locking structure is respectively arranged between the side bar 5a on each side and the housing 1, and the unlocking handle 7 is fixedly connected or integrally arranged with the locking pins 61 on the left and right sides, so that when the locking structure operates the unlocking handle 7 in the locked state , the locking structures on the left and right sides can be unlocked at the same time.

When the adjusting rod 5 is locked at the first gear position on the housing 1 by the locking structure, the locking pin 61 is located in the upper gear groove 11, and a first angle is formed between the backrest 2 and the seat cushion 3, and the first angle is formed between the backrest 2 and the seat cushion 3. A shaft 41 is located at the rear end of the first chute 31 in the first chute 31 , and the child safety seat is in a sitting position, as shown in FIGS. 1 to 6 .

When the adjusting rod 5 is locked at the second gear position on the housing 1 by the locking structure, the locking pin 61 is located in the gear groove 11 below, and a second included angle is formed between the backrest 2 and the seat cushion 3, and the first The included angle between the two is greater than the first included angle, the first shaft 41 is located at the front end of the first chute 31 in the first chute 31 , and the child safety seat is in a lying position, as shown in FIGS. 7 to 12 .

When the child safety seat needs to be adjusted from the sitting position to the lying position, pull the unlocking handle 7 backward, so that the locking pin 61 slides backward relative to the adjusting rod 5 until it comes out of the gear groove 11 and enters the connecting groove 12 , the locking structure is unlocked. Press the operating portion 52 of the adjusting rod 5 downward to make the adjusting rod 5 rotate relative to the housing 1 around the fourth axis 44, the locking pin 61 moves downward in the connecting groove 12 along the lengthwise extending direction of the connecting groove 12, and at the same time the adjusting rod 5 The first matching part 51 moves upward, so that the backrest 2 rotates upward around the second axis 42, the seat cushion 3 rotates upward around the first axis 41, and the seat cushion 3 also slides forward relative to the shell 1, that is, the first axis 41 gradually Approaching the front end of the first chute 31, the angle between the backrest 2 and the seat cushion 3 gradually increases until the first shaft 41 is located at the front end of the first chute 31, and the lock pin 61 is in the connecting groove 12 Located at the position communicating with the gear groove 11, the locking pin 61 slides forward relative to the adjusting rod 5 under the action of the elastic force of the elastic member 62, so as to escape from the connecting groove 12 and enter the gear groove 11, and the locking structure Once it is locked again, the child safety seat is in the lying position.

When the child safety seat needs to be adjusted from the lying position to the sitting position, the unlocking handle 7 is also operated to unlock the locking structure, and then the operation part 52 of the adjusting rod 5 can be pulled upward. The movement process of each component is the same as the above on the contrary.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. A child safety seat comprising a shell, a seat cushion and a back rest, characterized in that: the front part of the seat cushion and the front part of the shell are connected in a rotating mode through a first shaft, the rear part of the backrest and the rear part of the shell are connected in a rotating mode through a second shaft, the front part of the seat cushion can be opposite to the shell in a sliding mode, the front part of the backrest and the rear part of the seat cushion are connected in a rotating mode through a third shaft, an included angle is formed between the backrest and the seat cushion, the child safety seat further comprises an adjusting rod movably arranged on the shell and used for adjusting the included angle between the backrest and the seat cushion, the adjusting rod is connected with the shell in a rotating mode through a fourth shaft, a first matching portion is arranged on the adjusting rod, the seat cushion and/or the backrest are provided with a second matching portion which is abutted to the first matching portion, the first matching portion is arranged below the second matching portion, and an operation portion used for manual operation during adjustment is further arranged on the adjusting rod, the operation portion is followed the rear portion of casing stretches out the outside of casing, the operation portion with first cooperation portion is located respectively the relative both sides of fourth axis, children's safety seat is still including being used for with adjust the pole with the relative position locking of casing is in different gear position departments so that the back with form the locking structure of different contained angles between the seatpad, wherein, adjust the pole including being located the side lever of the casing left and right sides and the connection of the left and right sides horizontal pole between the side lever, the left and right sides the side lever respectively with the casing rotates to be connected, every side the side lever all at least with the seatpad with one part of two parts of back cooperatees, locking structure sets up respectively in every side the side lever with between the casing, the horizontal pole constitute operation portion.

2. The child safety seat according to claim 1, wherein: a first sliding groove is formed in one of the two front parts of the seat cushion and the housing, the first shaft is rotatably arranged on the other one of the two front parts of the seat cushion and the housing, and the first shaft is positioned in the first sliding groove and is slidably arranged along the length extension direction of the first sliding groove; or a second sliding groove is arranged on one of the two parts of the back part of the backrest and the back part of the shell, the second shaft is rotatably arranged on the other part of the two parts of the back part of the backrest and the back part of the shell, and the second shaft is positioned in the second sliding groove and is slidably arranged along the length extension direction of the second sliding groove.

3. The child safety seat according to claim 1, wherein: the locking structure comprises a plurality of gear grooves arranged on the shell and a lock pin arranged on the adjusting rod and matched with the gear grooves, when the locking structure is in a locking state, the lock pin is positioned in the gear grooves, and when the locking structure is in an unlocking state, the lock pin is disengaged from the gear grooves.

4. The child safety seat according to claim 3, wherein: the shell is further provided with a connecting groove which is communicated with two adjacent gear grooves and matched with the lock pin, the connecting groove extends along the movement direction of the adjusting rod relative to the shell, the lock pin can be slidably arranged on the adjusting rod, and the lock pin can slide relative to the adjusting rod and is separated from the gear grooves to enter the connecting groove or separated from the connecting groove to enter the gear grooves.

5. The child safety seat according to claim 4, wherein: the locking structure further comprises an elastic piece for driving the lock pin to automatically disengage from the connecting groove and slide into the gear groove, and two parts of the elastic piece are respectively arranged on the lock pin and the shell.

6. The child safety seat according to claim 4, wherein: the child safety seat further comprises unlocking handles which are used for driving the lock pins on the two sides to slide relative to the side rods and are separated from the gear grooves to enter the connecting grooves, and the unlocking handles are connected with the lock pins on the left side and the right side respectively.

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