Child safety seats

Abstract

The present invention discloses a child safety seat, wherein a reversing locking mechanism capable of limiting the rotation of the seat body from a forward position state to a reverse position state is arranged between the seat body and the base, an upper pull belt is arranged on the seat body, and the seat body has a forward position state and a reverse position state by rotating relative to the base, a reversing locking mechanism capable of limiting the rotation of the seat body from a forward position state to a reverse position state is arranged between the seat body and the base, during the rotation of the seat body from the forward position state to the reverse position state, the use section of the upper pull belt is extended with the rotation of the seat body, and a telescopic locking mechanism capable of limiting the telescopic adjustment of the upper pull belt and an unlocking member that unlocks the telescopic locking mechanism by operating the telescopic locking mechanism are arranged on the seat body. In the child safety seat, when the seat body is rotated to switch the installation direction, it is no longer necessary to release and reconnect the upper pull belt and the car seat, and the operation is more convenient.

Description

Technical Field

[0001] The invention relates to a child safety seat. Background Art

[0002] Child safety seats are necessary facilities for children to ride safely in a car. Users should choose to install the child safety seat in the forward direction (the child faces the direction of the car's travel) or in the reverse direction (the child faces the direction of the car's travel) according to the different ages, weights and heights of the children. The reverse installation is suitable for infants with smaller age, weight and height, and the forward installation is suitable for children with slightly larger age, weight and height. Usually, the child safety seat that can be installed forward and reverse can rotate relative to the base to facilitate switching the installation direction. One way to connect the child safety seat to the car seat is through an upper pull belt, that is, the upper part of the seat body is provided with an upper pull belt, a joint is connected to the upper pull belt, and the car is provided with an interface that matches and connects to the joint. However, if this child safety seat with an upper pull belt has been installed on the car seat, that is, the upper pull belt has been connected to the interface on the car, then when the seat body is turned to switch the installation direction, the connection between the upper pull belt and the car must be disconnected, the seat body must be turned, and then reconnected. It is very inconvenient. Summary of the invention

[0003] In order to solve the above problems, an object of the present invention is to provide a child safety seat.

[0004] In order to achieve the above objectives, the technical solution adopted by the present invention is: a child safety seat, comprising a seat body and a base connected to each other, the seat body is provided with an upper strap for connecting the child safety seat to a car seat and one end of which can be telescopically adjusted relative to the seat body, the upper strap having a use section extending out of the seat body and used to be connected to the car seat, the seat body is rotatably connected to the base, and the seat body has a forward position state and a reverse position state by rotating relative to the base, a reversing locking mechanism capable of limiting the seat body from rotating from the forward position state to the reverse position state is provided between the seat body and the base, the upper strap is telescopically adjustable on the seat body, in the process of the seat body rotating from the forward position state to the reverse position state, the upper strap is pulled and moved with the rotation of the seat body, so that the length of the use section is extended, and a telescopic locking mechanism capable of limiting the telescopic adjustment of the upper strap and an unlocking member that unlocks the telescopic locking mechanism by operating the reversing locking mechanism are provided on the seat body.

[0005] Furthermore, the unlocking member is connected to the telescopic locking mechanism through a traction mechanism.

[0006] Furthermore, the telescopic locking mechanism includes a clamping piece rotatably arranged on the seat body. When the telescopic locking mechanism is in a locked state, the clamping piece presses the upper pull belt against the seat body. When the telescopic locking mechanism is in an unlocked state, the clamping piece releases the upper pull belt, and the unlocking piece is connected to the clamping piece through a traction mechanism.

[0007] Furthermore, the telescopic locking mechanism also includes a first elastic member that applies force to the pressing member to rotate it and press the upper pull belt.

[0008] Furthermore, the telescopic locking mechanism is a one-way locking mechanism that allows the upper pull belt to retract but limits the extension of the upper pull belt in a locked state.

[0009] Optionally, the upper strap also has a non-use section extending out of the seat body, and the portion of the upper strap located between the use section and the non-use section is located inside the seat body. When the length of the use section is extended, the length of the non-use section is shortened. When the length of the use section is shortened, the other end of the non-use section whose length is extended can also be telescopically adjusted to extend out of the seat body and is adjustably connected to one end of the upper strap. One end of the upper strap retracts through the extension of the other end and extends through the retraction of the other end.

[0010] Optionally, a reel is provided inside the seat body, and a telescopic locking mechanism is located between the reel and the use section. The other end of the upper pull belt located inside the seat body can be reeled in and pulled out to be released and connected to the reel, and the reel is connected to the inside of the seat body.

[0011] Furthermore, the reversing locking mechanism includes an insertion rod that is movably arranged on the seat body and detachably connected to the base. When the reversing locking mechanism is in a locked state, the insertion rod is connected to the base, and when the reversing locking mechanism is in an unlocked state, the insertion rod is detached from the base; the insertion rod is movably arranged on the seat body and is driven by an unlocking member to detach from the base.

[0012] Furthermore, the reversing locking mechanism also includes a second elastic member that applies force to the insertion rod to connect it to the base.

[0013] The present invention also provides another technical solution: it includes a seat body and a base connected to each other, the seat body is provided with an upper pull belt for connecting the child safety seat to the car seat, the upper pull belt has a use section extending out of the seat body and used to connect to the car seat, the seat body is rotatably connected to the base, and the seat body has a forward position state and a reverse position state by rotating relative to the base, a reversing locking mechanism capable of limiting the seat body from rotating from the forward position state to the reverse position state is provided between the seat body and the base, the upper pull belt is telescopically adjustable on the seat body, in the process of the seat body rotating from the forward position state to the reverse position state, the upper pull belt is pulled and moved with the rotation of the seat body, so that the length of the use section is extended, the seat body is provided with a telescopic locking mechanism capable of limiting the telescopic adjustment of the upper pull belt, and an unlocking member that drives the telescopic locking mechanism and the reversing locking mechanism to unlock by operating the reversing locking mechanism, when the unlocking member is in the locked position, the reversing locking mechanism and the telescopic locking mechanism are both in the locked state, and when the unlocking member is in the unlocked position, the reversing locking mechanism and the telescopic locking mechanism are both in the unlocked state.

[0014] Due to the adoption of the above technical solution, in this child safety seat, when the seat body is rotated to switch the installation direction, the telescopic locking mechanism is unlocked, and the upper pull strap can be extended as the seat body rotates. After the installation direction of the seat body is switched, the telescopic locking mechanism is locked, and the length of the upper pull strap is fixed, so there is no need to release and reconnect the upper pull strap and the car seat, which makes the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic structural diagram of a child safety seat when it is installed in a forward direction according to an embodiment of the present invention;

[0016] Attached Figure 2 For attachment Figure 1 A cross-sectional view of

[0017] Attached Figure 3 For attachment Figure 1 The schematic diagram of the structure of the child safety seat when it is installed in reverse direction is shown;

[0018] Attached Figure 4 For attachment Figure 1 A schematic diagram of the back structure of the seat body in the child safety seat shown;

[0019] Attached Figure 5 For attachment Figure 4 Schematic diagram of the connection structure of the middle reversing locking mechanism, the traction mechanism, the telescopic locking mechanism and the upper pull belt;

[0020] Attached Figure 6 For attachment Figure 1 A schematic diagram of the back structure of the seat body in the child safety seat shown;

[0021] Attached Figure 7 For attachment Figure 6 Schematic diagram of the connection structure of the middle reversing locking mechanism, the traction mechanism, the telescopic locking mechanism and the upper pull belt;

[0022] Attached Figure 8 For attachment Figure 1 A schematic diagram of a side cross-sectional structure of a seat body in the child safety seat shown;

[0023] Attached Fig. 9 For attachment Figure 8 Schematic diagram of the connection structure of the middle reversing locking mechanism, the traction mechanism, the telescopic locking mechanism and the upper pull belt;

[0024] Attached Fig.10 For attachment Fig. 9 A schematic diagram of the structure of the telescopic locking mechanism in the locked state;

[0025] Attached Fig.11 For attachment Fig.10 A schematic diagram of the structure of the telescopic locking mechanism in the unlocked state;

[0026] Attached Fig.12 It is a schematic structural diagram of a child safety seat in another embodiment of the present invention;

[0027] Attached Fig.13 For attachment Fig.12 sectional view of .

[0028] The numbers in the figure are:

[0029] 1. Seat body; 2. Base; 3. Upper pull belt; 31. Use section; 32. Non-use section; 4. Joint; 5. Unlocking part; 6. Traction mechanism; 7. Pressing part; 8. Insert rod; 9. Pulley; 10. Winder. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0031] Embodiment 1

[0032] From the attached Figure 1 To Attachment Fig.11 As can be seen from the structural schematic diagram, the child safety seat in this embodiment includes a seat body 1 and a base 2, which are rotatably connected and the seat body 1 has a forward position state and a reverse position state by rotating relative to the base 2, and a reversing locking mechanism is provided between the seat body 1 and the base 2, which can limit the seat body 1 from rotating from the forward position state to the reverse position state.

[0033] The seat body 1 is provided with an upper strap 3 for connecting the child safety seat to the car seat. The upper strap 3 has a use section 31, which is defined as a portion of the upper strap 3 extending out of the seat body 1 and used to connect to the car seat. One end of the use section 31 is connected to a joint 4, and is connected to the car seat through the joint 4. When the upper strap 3 is pulled, a relative movement occurs between the upper strap 3 and the seat body 1, so that the length of the use section 31 is extended or shortened. When the child safety seat is installed on the car seat, the length of the use section 31 can be adjusted according to the distance between the back of the seat body 1 and the backrest of the car seat. In the process of rotating the seat body 1 from the forward position state to the reverse position state, the upper strap 3 is pulled along with the rotation of the seat body 1, so that the length of the use section 31 is extended. In this embodiment, the upper strap 3 also has a non-use section 32, which is defined as a portion of the upper strap 3 extending out of the seat body 1 but not connected to the car seat, and one end of the non-use section 32 is a free end. The non-use section 32 is arranged at an interval from the use section 31, that is, there is a part of the upper strap 3 between the non-use section 32 and the use section 31, and the part of the upper strap 3 located between the use section 31 and the non-use section 32 is located inside the seat body 1. Since the overall length of the upper strap 3 is fixed, when the upper strap 3 is subjected to force and moves relative to the seat body 1 (that is, when the upper strap is telescopically adjusted), the length of the part located inside the seat body 1 is also unchanged, so when the upper strap 3 is subjected to force and moves, if the length of the use section 31 is extended, the length of the non-use section 32 is shortened, and if the length of the use section 31 is shortened, the length of the non-use section 32 is extended.

[0034] When the seat body 1 turns from the forward position to the reverse position, one end of the use section 31 is fixed because it is connected to the car seat. During the rotation of the seat body 1, the force direction of the upper pull strap 3 is toward the use section 31, so that the length of the use section 31 becomes longer, while the length of the non-use section 32 becomes shorter; when the seat body 1 turns from the reverse position to the forward position, one end of the non-use section 32 is pulled, and the force direction of the upper pull strap 3 is toward the non-use section 32, so that the length of the non-use section 32 becomes longer, and the length of the use section 31 becomes shorter so as to just fit the distance between the seat body 1 and the car.

[0035] The seat body 1 is provided with a telescopic locking mechanism capable of limiting the telescopic adjustment of the upper pull belt 3 and an unlocking member 5 for unlocking the telescopic locking mechanism.

[0036] The above-mentioned reversing locking mechanism and telescopic locking mechanism are both arranged inside the seat body 1. Preferably, the unlocking member 5 is connected to the telescopic locking mechanism through a traction mechanism 6.

[0037] This embodiment provides a specific structure of a telescopic locking mechanism, including a pressing member 7 rotatably arranged on the seat body 1. When the telescopic locking mechanism is in a locked state, the pressing member 7 presses the upper pull belt 3 on the seat body 1. When the telescopic locking mechanism is in an unlocked state, the pressing member 7 releases the upper pull belt 3, and the unlocking member 5 is connected to the pressing member 7 through a traction mechanism 6. In this embodiment, a pulley 9 is arranged on the seat body 1. One end of the traction mechanism 6 is connected to the unlocking member 5, and the other end bypasses the pulley 9 and is connected to the pressing member 7. The pulley 9 here plays a role in reversing the force. Since the unlocking member 5 in this embodiment is arranged at the lower part of the seat body 1, and the pressing member 7 and the upper pull belt 3 are arranged at the upper part of the seat body 1, and the pressing member 7 is located on the side of the upper pull belt 3, in order to enable the unlocking member 5 to pull the pressing member 7 to rotate through the traction mechanism 6, a pulley 9 is arranged.

[0038] Specifically, the pressing member 7 is rotatably disposed in the seat body 1, one end of the pressing member is connected to the traction mechanism 6, and the other end is provided with a pressing portion for pressing the upper strap 3. The telescopic locking mechanism also includes a first elastic member that applies force to the pressing member 7 to rotate and press the upper strap 3, so that after the operator releases the unlocking member 5, the pressing portion of the pressing member 7 can automatically press the upper strap 3 to fix it.

[0039] In a more preferred embodiment, the telescopic locking mechanism is a one-way locking mechanism that allows the use section 31 of the upper pull belt 3 to shorten but limits the extension of the use section 31 in the locked state. For example, the pressing member 7 in this embodiment can be provided with ratchets at the pressing portion with the upper pull belt 3.

[0040] This embodiment does not specifically limit the specific structure and unlocking method of the reversing locking mechanism.

[0041] Working principle:

[0042] When the child safety seat is switched from forward installation to reverse installation, the reversing locking mechanism is unlocked, and then the unlocking member 5 is pulled, and the pressing member 7 is pulled to rotate through the traction mechanism 6, so that the pressing member 7 releases the upper pull belt 3, and the telescopic locking mechanism is unlocked. The seat body 1 is rotated to make it turn from the forward working position to the reverse working position. During the rotation process, the use section 31 of the upper pull belt 3 is stretched. Further, in order to ensure the secure installation of the child safety seat, after the seat body 1 completes the rotation reversal, the reversing locking mechanism and the retracting locking mechanism are locked, and then the non-use section 32 of the upper pull belt 3 is pulled to tighten the use section 31 to prevent shaking between the seat body 1 and the car seat. When the seat body 1 is rotated from the reverse working position to the forward position, the reversing locking mechanism is first unlocked and the seat body 1 is rotated. When the seat body 1 completes the rotation and reversal, the reversing locking mechanism is locked. The telescopic locking mechanism is always in a locked state during this process. The non-use section 32 of the upper pull strap 3 is pulled so that the use section 31 is adjusted to a distance suitable for the distance between the seat body 1 and the car seat and is tightened, so that the child safety seat is securely installed between the car seat.

[0043] Embodiment 2

[0044] Reference Fig.12 To Attachment Fig.13 The child safety seat in this embodiment is different from that in the first embodiment only in the connection mode and structural arrangement between the upper strap 3 and the seat body 1. Specifically, the upper strap 3 in this embodiment has no non-use section, and the rest of the upper strap 3 except the use section 31 is located inside the seat body 1. A reel 10 is provided inside the seat body 1, and the part of the upper strap 3 located inside the seat body 1 can be connected to the reel 10 in a reelable and releasable manner. When the upper strap 3 is pulled toward the use section 31, the upper strap 3 is pulled and moved to extend the length of the use section 31, and the upper strap 3 wound on the reel 10 becomes less, and when the upper strap 3 loses the force in the direction of the use section 31, the length of the use section 31 becomes shorter under the reeling action of the reel 10. The telescopic locking mechanism is provided between the reel 10 and the use section 31.

[0045] The working principle of the child safety seat reversal is basically the same as that of the first embodiment: when the child safety seat is switched from the forward installation to the reverse installation, the reversal locking mechanism is unlocked, and the unlocking member 5 is operated to unlock the telescopic locking mechanism, and the seat body 1 is rotated to make it turn from the forward working position to the reverse working position. During the rotation process, the use section 31 of the upper pull belt 3 is elongated. After the seat body 1 completes the rotation reversal, the use section 31 is tightened under the rewinding action of the retractor 10, and the reversal locking mechanism and the retracted locking mechanism are re-locked, so that the child safety seat is securely installed between the car seat. When the seat body 1 is turned from the reverse working position to the forward position, the reversal locking mechanism is first unlocked, and the seat body 1 is rotated. After the seat body 1 completes the rotation reversal, the use section 31 is adjusted to a distance suitable for the distance between the seat body 1 and the car seat and is tightened under the rewinding action of the retractor 10. At this time, the reversal locking mechanism is re-locked, and the telescopic locking mechanism is always in a locked state during this process, so that the child safety seat is securely installed between the car seat.

[0046] Embodiment 3

[0047] Reference Figure 5 To Attachment Fig.11 The child safety seat in this embodiment is different from the first embodiment only in that the reversing locking mechanism is also unlocked by the unlocking member 5. When the unlocking member 5 is in the locked position, the reversing locking mechanism and the telescopic locking mechanism are both in the locked state, and when the unlocking member 5 is in the unlocked position, the reversing locking mechanism and the telescopic locking mechanism are both in the unlocked state.

[0048] The reversing locking mechanism may adopt the structure in the prior art or the structure in the present embodiment, including an insertion rod 8 movably arranged on the seat body 1 and detachably connected to the base 2. When the reversing locking mechanism is in a locked state, the insertion rod 8 is connected to the base 2, and when the reversing locking mechanism is in an unlocked state, the insertion rod 8 is detached from the base 2. Preferably, the reversing locking mechanism also includes a second elastic member that applies force to the insertion rod 8 to connect it to the base 2, so that after the operator releases the unlocking member 5, the insertion rod 8 can be automatically inserted into the base 2 to fix the position between the seat body 1 and the base 2. The above-mentioned insertion rod 8 and the unlocking member 5 can be matched through an inclined surface that can slide in contact, or can be pulled by a traction member.

[0049] The working principle of the child safety seat reversing is basically the same as that of the first embodiment, except that, when reversing, the unlocking member 5 is operated to simultaneously unlock the reversing locking mechanism and the telescopic locking mechanism.

[0050] Embodiment 4

[0051] The child safety seat in this embodiment is different from the second embodiment only in that the reversing locking mechanism is also unlocked by the unlocking member 5. When the unlocking member 5 is in the locked position, the reversing locking mechanism and the telescopic locking mechanism are both in the locked state, and when the unlocking member 5 is in the unlocked position, the reversing locking mechanism and the telescopic locking mechanism are both in the unlocked state.

[0052] The reversing locking mechanism may adopt the structure in the prior art or the structure in the third embodiment, which will not be described again here.

[0053] The working principle of the child safety seat reversing is basically the same as that of the second embodiment, except that, when reversing, the unlocking member 5 is operated to simultaneously unlock the reversing locking mechanism and the telescopic locking mechanism.

[0054] In the child safety seat in the above embodiment, when the seat body is rotated to switch the installation direction, the telescopic locking mechanism is unlocked and the upper pull strap can be extended as the seat body rotates. After the installation direction of the seat body is switched, the telescopic locking mechanism is locked and the length of the upper pull strap is fixed, so there is no need to release and reconnect the upper pull strap and the car seat, which is more convenient.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A child safety seat, comprising a seat body (1) and a base (2) connected to each other, wherein the seat body (1) is provided with an upper strap (3) for connecting the child safety seat to a car seat, the upper strap (3) having a use section (31) extending out of the seat body (1) and used for connecting to the car seat, characterized in that: The seat body (1) is rotatably connected to the base (2), and the seat body (1) has a forward position state and a reverse position state by rotating relative to the base (2). A reversing locking mechanism capable of limiting the seat body (1) from rotating from the forward position state to the reverse position state is provided between the seat body (1) and the base (2). The upper pull belt (3) is telescopically adjustable on the seat body (1). During the rotation of the seat body (1) from the forward position state to the reverse position state, the upper pull belt (3) is pulled and moved along with the rotation of the seat body (1), so that the length of the use section (31) is extended. The seat body (1) is provided with a telescopic locking mechanism capable of limiting the telescopic adjustment of the upper pull belt (3), and an unlocking member (5) for unlocking the telescopic locking mechanism by operating the telescopic locking mechanism. When the unlocking member (5) is in the locked position, the reversing locking mechanism and the telescopic locking mechanism are both in the locked state. When the unlocking member (5) is in the unlocked position, the reversing locking mechanism and the telescopic locking mechanism are both in the unlocked state. The telescopic locking mechanism comprises a pressing member (7) rotatably arranged on the seat body (1); when the telescopic locking mechanism is in a locked state, the pressing member (7) presses the upper pull belt (3) onto the seat body (1); when the telescopic locking mechanism is in an unlocked state, the pressing member (7) releases the upper pull belt (3); and the unlocking member (5) is connected to the pressing member (7) via a traction mechanism (6); The reversing locking mechanism comprises an insertion rod (8) detachably connected to the base (2); when the reversing locking mechanism is in a locked state, the insertion rod (8) is connected to the base (2); when the reversing locking mechanism is in an unlocked state, the insertion rod (8) is detached from the base (2); the insertion rod (8) is movably arranged on the seat body (1) and is driven by the unlocking member (5) to be detached from the base (2); the insertion rod (8) and the unlocking member (5) are matched by inclined surfaces that can slide in contact, or the insertion rod (8) and the unlocking member (5) are pulled by a traction member.

2. The child safety seat according to claim 1, characterized in that: The unlocking member (5) is connected to the telescopic locking mechanism via a traction mechanism (6).

3. The child safety seat according to claim 1, characterized in that: The telescopic locking mechanism also includes a first elastic member that applies force to the pressing member (7) to cause it to rotate and press the upper pull belt (3).

4. The child safety seat according to claim 1, characterized in that: The telescopic locking mechanism is a one-way locking mechanism which allows the upper pull belt (3) to retract but limits the extension of the upper pull belt (3) in a locked state.

5. The child safety seat according to claim 1, characterized in that: The upper strap (3) further comprises a non-use section (32) extending out of the seat body (1); a portion of the upper strap (3) located between the use section (31) and the non-use section (32) is located inside the seat body (1); when the use section (31) is elongated, the length of the non-use section (32) is shortened; and when the use section (31) is shortened, the length of the non-use section (32) is elongated.

6. The child safety seat according to claim 1, characterized in that: A reel (10) is provided inside the seat body (1), the telescopic locking mechanism is located between the reel (10) and the use section (31), and the portion of the upper pull belt (3) located inside the seat body (1) can be connected to the reel (10) in a retractable and releasable manner.

7. The child safety seat according to claim 1, characterized in that: The reversing locking mechanism also includes a second elastic member that applies force to the insertion rod (8) to connect it to the base (2).

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