Child safety seat

Abstract

Provided is a child safety seat (100). 【Solution means】The child safety seat (100) includes a seat housing (1) including a seat portion (11) for supporting a child's waist, an adjustment belt (22) having a rear end connected to a shoulder belt (21) of the child safety seat (100) and a front end passing through the front end of the seat portion (11), a lock member (3) disposed within the seat portion (11) for locking the adjustment belt (22) to prevent movement of the adjustment belt (22), a seat cover (4) including a seat cloth (41) covering the seat portion (11), the seat cloth (41) being provided with an operation port (410) through which a hand can pass to release the lock of the lock member (3), and a barrier structure (5) configured to prevent foreign matter from falling into the lock member (3) through the operation port (410).

Description

Technical Field

[0001] The present disclosure relates to a child safety seat.

Background Art

[0002] Child safety seats (including infant carriers) are usually installed on vehicle seats and firmly fixed to the vehicle seats by attachments such as top straps, ISOFIX devices, and support legs. Child safety seats may use a unique safety belt system to restrain a child in the seat of the child safety seat in order to protect the child from impacts during vehicle collisions, emergency braking, and other accidents.

[0003] The main structure of a general child safety seat includes a seat housing and a seat cover covering the outside of the seat housing. The seat housing includes a seat portion for supporting a child's hip and a backrest portion for supporting a child's back. The seat cover includes a seat cloth covering the seat portion and a backrest cloth covering the backrest portion. The seat cloth is provided with through holes and operation ports. The operation ports are arranged behind the through holes. Shoulder belt holes are provided in the backrest cloth and the backrest portion, respectively.

[0004] In the prior art, the safety belt system of a child safety seat includes a lap belt, two shoulder belts, an adjustment belt, and a locking member. The lap belt is connected to the seat fabric and is provided with a female buckle. At the front of the backrest part of each shoulder belt, a male buckle that coincides with the female buckle is provided, and the rear end of each shoulder belt passing through the corresponding shoulder belt hole is connected to the rear end of the adjustment belt via the same fastener. The adjustment belt extends forward within the seat portion and is provided such that the front end of the adjustment belt passes through a through hole in the seat fabric. By pulling the front end of the adjustment belt, the length of each shoulder belt in front of the backrest part can be shortened, and a child sitting on the child safety seat can be restrained. The locking member is attached to the seat portion. The locking member is configured to lock the adjustment belt and prevent the release of each shoulder belt due to an unwanted displacement of the adjustment belt. When it is necessary to release the length of each shoulder belt in front of the backrest part, the parent's hand needs to pass through the operation port to release the lock of the locking member, and the locking member needs to release the adjustment belt.

[0005] In order to enable the parent's hand to easily operate the locking member through the operation port, the operation port is generally large. As a result, foreign objects (such as children's food or parts of playing toys) can easily enter the locking member through the operation port, and the locking member gets jammed. As a result, the locking member cannot be locked or unlocked normally, the shoulder belt cannot be adjusted, and it affects the use.

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of the present invention is to provide a child safety seat that can effectively prevent foreign objects from entering the locking member through the operation port.

Means for Solving the Problems

[0007] The present invention provides a child safety seat including a seat housing including a seat portion for supporting a child's waist, an adjustment belt having a rear end connected to a shoulder belt of the child safety seat and a front end passing through the front end of the seat portion, a locking member disposed within the seat portion for locking the adjustment belt to prevent movement of the adjustment belt, and a seat cover including a seat cloth covering the seat portion, wherein the seat cloth is provided with an operation port through which a hand can pass to release the lock of the locking member, and a barrier structure configured to prevent foreign matter from falling from the operation port onto the locking member.

[0008] Further, the barrier structure includes a block bag having a predetermined depth, and an opening of the block bag is disposed around the operation port and connected to the seat cloth.

[0009] Furthermore, the block bag is formed of a stretchable fabric, and / or the periphery of the opening of the block bag is connected to the seat cloth by sewing or adhesion.

[0010] Also, an edge of the opening of the block bag is connected to a first position of the seat cloth, and a part of the body of the block bag is connected to a second position on the inner surface of the seat cloth, and the second position is farther from the operation port than the first position.

[0011] Furthermore, a part of the body of the block bag is connected to the second position via a traction belt, or a part of the body of the block bag is connected to the second position by sewing or adhesion.

[0012] Furthermore, the barrier structure includes a first block sheet made of an elastic fabric, and a peripheral edge of the first block sheet is connected to the seat cloth to close the operation port.

[0013] Also, the peripheral edge of the first block sheet is connected to the inner surface of the seat cloth, and the area of the first block sheet is larger than the area of the operation port, or the peripheral edge of the first block sheet is connected to the peripheral edge of the operation port and the first block sheet is disposed within the operation port.

[0014] Also, the operation port is disposed directly above the locking member.

[0015] Also, the barrier structure includes a second barrier sheet that covers the operation port on the outer surface of the sheet cloth. A part of the peripheral edge of the second barrier sheet is connected to the outer surface of the sheet cloth, and another part of the peripheral edge of the second barrier sheet is connected to the outer surface of the sheet cloth to form a gap communicating with the operation port.

[0016] Furthermore, the barrier structure includes a first flip cover. The trailing edge of the first flip cover is connected to the outer surface of the sheet cloth. The first flip cover rotates downward about its trailing edge to a closed position to close the operation port, and the first flip cover rotates upward about its trailing edge to an open position to expose the operation port.

[0017] Also, a holding device for holding the first flip cover in the closed position is disposed between the first flip cover and the sheet cloth.

[0018] Furthermore, the holding device includes fasteners that cooperate with each other, and the fasteners are hook-and-loop fasteners, magnetic members, or snaps.

[0019] Furthermore, the barrier structure includes an adhesive layer that covers the locking member, and the adhesive layer is provided with an inlet and an outlet for the adjustment belt to pass through.

[0020] Furthermore, the seat portion is provided with a recess for accommodating the locking member, and the barrier structure is provided with a second flip cover whose rear end is connected to the seat portion via a rotating shaft and whose front end is used as an operation end. The second flip cover rotates about the rotating shaft to a closed position covering the recess above the locking member, and also rotates about the rotating shaft to an open position exposing the locking member.

[0021] Furthermore, an elastic member is provided between the second flip cover and the seat portion, and the elastic member is configured to hold the second flip cover in the closed position.

[0022] Furthermore, a recess for accommodating the locking member is provided in the seat portion, and a third block sheet made of an elastic fabric is provided in the barrier structure. The third block sheet is connected to the seat portion, covers the recess above the locking member, and isolates the locking member from the operation port.

[0023] Also, the operation port is disposed on the front surface of the seat fabric, and the front end of the adjustment belt passes through the operation port. The barrier structure includes a third flip cover, the rear end of which is connected to the seat fabric and is located above the operation port, whereby the third flip cover shields the operation port.

[0024] Moreover, a through hole is provided on the front surface of the seat fabric, through which the adjustment belt is inserted. A shielding brim is provided above the through hole in the seat fabric to shield the through hole.

[0025] In addition, a recess for accommodating the locking member is provided in the seat portion, a partition plate is provided above the recess in the seat fabric to cover the locking member, and the operation port is disposed in front of the partition plate.

[0026] According to the child safety seat of the present invention, a barrier structure is provided that can effectively prevent foreign objects from falling from the operation port onto the locking member, preventing problems such as pinching of the locking member and poor adjustment of the shoulder belt due to foreign objects entering the locking member.

Brief Description of the Drawings

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DETAILED DESCRIPTION OF THE INVENTION

[0028] Referring to FIG. 1, a child safety seat 100 according to a first embodiment of the present invention is shown. The child safety seat 100 can include a main structure, a safety belt system attached to the main structure, and other attachments (such as an ISOFIX device or support legs) for fixing the child safety seat 100. When the child safety seat 100 is an infant carrier, it can be provided with a handle 8.

[0029] The main structure of the child seat 100 includes a seat housing 1 and a seat cover 4 that covers the outside of the seat housing 1. The seat housing 1 includes a seat portion 11 that supports the child's waist and a backrest portion 12 that supports the child's back. The seat cover 4 includes a seat cloth 41 that covers the seat portion 11 and a backrest cloth 42 that covers the backrest portion 12. The seat cloth 41 is provided with a through hole 401 and an operation port 410. The operation port 410 is located behind the through hole 401. Shoulder belt holes 120 are provided in the backrest cloth 42 and the backrest portion 12, respectively.

[0030] The safety belt system of the child safety seat 100 can include a lap belt (not shown in FIG. 1), two shoulder belts 21, an adjustment belt 22, and a locking member 3. The lap belt is connected to the seat fabric 41 and is provided with a female buckle 24. At the front portion of the backrest 12 of each shoulder belt 21, a male buckle 25 that coincides with the female buckle 24 is provided. The rear end of each shoulder belt 21 passing through the corresponding shoulder belt hole 120 is connected to the rear end of the adjustment belt 22 via, for example, the same fastener (not shown in FIG. 1 and located behind the backrest 12). The front end 221 of the adjustment belt 22 extends forward within the seat portion 11 and passes through the through hole 401 of the seat fabric 41. When the front end of the adjustment belt 22 is pulled, the length of each shoulder belt 21 in front of the backrest 12 becomes shorter, and the child sitting on the child safety seat 100 can be restrained. The locking member 3 is attached to the seat portion 11 and locks the adjustment belt 22 to prevent each shoulder belt 21 from coming off due to an unwanted movement of the adjustment belt 22. As can be seen from FIG. 2, a recess 110 is provided at the front end of the seat portion 11. The locking member 3 is accommodated in this recess 110. The front end of the adjustment belt 22 passes through the locking member 3 in the recess 110, and further, the recess 110 guides the adjustment belt 22 so that the front end 221 of the adjustment belt 22 passes through the through hole 401 and is exposed from the seat fabric 41.

[0031] Unless otherwise specified and limited, the terms in the directions of "front", "rear", "upper", and "lower" in this embodiment correspond to the directions of "front", "rear", "upper", and "lower" of the child sitting on the child safety seat 100. The directions of "front" and "rear" are respectively indicated by arrows F and B in the figure. These terms in the directions are only intended to make the description of the embodiments of the present invention clearer and are not intended to unduly limit the protection scope of the present disclosure.

[0032] The conventional locking member 3 was configured to lock the adjustment belt 22 so that it could only move in one direction. More specifically, when the locking member 3 is in the locked state where it locks the adjustment belt 22, pulling the adjustment belt 22 forward shortens the length of each shoulder belt 21 in front of the backrest portion 12 to restrain the child, but pulling the adjustment belt 22 backward cannot lengthen the length of each shoulder belt 21 in front of the backrest portion 12.

[0033] Figures 3 and 4 show the configuration of the locking member 3. The locking member 3 includes a clamp plate 31, a bracket 32, a rotation shaft 33, and a torsion spring 34. The bracket 32 generally has a U-shaped structure and includes a bottom wall 322 and two opposite side walls 321 extending from the bottom wall. The middle portion of the clamp plate 31 is attached to the two opposite side walls 321 of the bracket 32 via the rotation shaft 33, and the adjustment belt 22 passes through the bottom wall 322 of the bracket 32 and the clamp plate 31. The clamp plate 31 can rotate around the rotation shaft 33 to clamp the adjustment belt 22 when the locking member 3 is in the locked state, and can release the adjustment belt 22 when the locking member 3 is in the unlocked state. The torsion spring 34 sleeves the rotation shaft 33, and the two spring arms of the torsion spring 34 are respectively connected to the bracket 32 and the clamp plate 31. The torsion spring 34 is configured to keep the clamp plate 31 in a state of clamping the adjustment belt 22. It will be understood that the configuration of the locking member 3 can be changed in many ways and is not limited to the examples in this specification.

[0034] Referring to FIG. 4, when the lock member 3 is in the locked state, the adjustment belt 22 is sandwiched between the first end 311 of the clamp plate 31 and the bottom wall 322 of the bracket 32. The first end 311 of the clamp plate 31 is provided with ratchet teeth. When the lock member 3 is in the locked state, the adjustment belt 22 is pulled forward along the arrow F, but is not pulled backward along the arrow B. When the second end 312 of the clamp plate 31 is pushed, the clamp plate 31 overcomes the force of the torsion spring 34 and rotates clockwise about the rotation shaft 33, releasing the clamping of the adjustment belt 22. In this case, the adjustment belt 22 can be pulled back and forth. Before a child sits on the child safety seat 100, it is usually necessary to loosen the length of each shoulder belt 21 in front of the backrest 12. For this purpose, the hand passes through the operation port 410 to push the second end 312 of the clamp plate 31, the lock member 3 releases the lock of the adjustment belt 22, and then each shoulder belt 21 needs to be pulled forward. After the child sits on the child safety seat 100, the lock member 3 remains in the locked state. First, fasten the male buckle 25 of each shoulder belt 21 and the female buckle 24 of the crotch belt, and then pull the adjustment belt 22 forward to shorten the length of each shoulder belt 21 in front of the backrest 12, so that the child can be easily restrained on the child safety seat 100.

[0035] Referring to FIGS. 1 and 2 together, the child safety seat 100 further includes a barrier structure 5. The barrier structure 5 is configured to prevent or prevent foreign objects (such as food and toy parts) from falling through the operation port 410 into the recess 110 and entering the lock member 3, prevent the lock member 3 from being pinched by foreign objects, and ensure the normal operation of the lock member 3 and the child safety seat. The barrier structure 5 can be implemented in various ways as long as it can prevent foreign objects from easily falling into the lock member 3 through the operation port 410.

[0036] Referring to FIG. 2, the barrier structure 5 can include a block bag 51 having a predetermined depth. Referring to FIG. 5, the mouth 510 of the block bag 51 is disposed around the operation port 410, and the mouth 510 of the block bag 51 is connected to the sheet cloth 41. On the other hand, the block bag 51 can provide a sufficient depth such that a hand can be extended into the recess 110 to release the lock of the locking member 3. On the other hand, the block bag 51 can collect foreign objects that have fallen into the operation port 410, and can effectively prevent the foreign objects from falling into the locking member 3 and affecting the normal operation of the locking member 3. It is understood that the periphery of the mouth 510 of the block bag 51 is continuously connected to the sheet cloth 41 so that no large gap is formed between them.

[0037] Referring to FIGS. 1, 2, 5, and 6 together, the sheet cloth 41 has an outer surface 41a that contacts a child and an inner surface 41b on the side opposite to the seat portion 11. For the convenience of showing the configuration of the block bag 51, in FIG. 2, the sheet cloth 41 is folded upward and separated from the seat portion 11, and the inner surface 41b of the sheet cloth 41 is exposed. Referring to FIG. 2, as shown in FIG. 6, the peripheral edge of the mouth 510 of the block bag 51 is connected to the inner surface 41b of the sheet cloth 41 by sewing, and an annular sewing line can be formed at the first position 411 of the inner surface 41b of the sheet cloth 41. Of course, the method by which the peripheral edge of the mouth 510 of the block bag 51 is connected to the inner surface 41b of the sheet cloth 41 is not limited to sewing. In some embodiments, the two may be connected by adhesion or other suitable methods.

[0038] The block bag 51 may be a cloth bag. In some embodiments, the block bag 51 may be made of an elastic fabric. The block bag 51 made of an elastic fabric can provide a sufficient depth in a smaller size, thereby preventing problems that may be caused by suspending a block bag 51 of a large size in the recess 110.

[0039] Referring to FIG. 2 again, the operation port 410 may be disposed diagonally in front of the locking member 3. When it is necessary to unlock the locking member 3, in order to operate the locking member 3, it is necessary to insert a hand obliquely downward into the operation port 410 from the front to the back. Therefore, a child sitting on the child safety seat 100 accidentally touching the clamp plate 31 of the locking member 3 through the operation port 410 to accidentally unlock the locking member 3 is prevented. In some embodiments, a rigid partition plate 45 is provided on the seat cloth 41. The partition plate 45 is disposed above the recess 110 and is configured to cover the locking member 3. It can be understood that the partition plate 45 is behind the operation port 410. By the arrangement of the partition plate 45, it is possible to further prevent a child's hand or foot from accidentally pressing the seat cloth 41 above the locking member 3 to accidentally unlock the locking member 3. The partition plate 45 may be a plastic plate such as a PE plate or a PP plate. The partition plate 45 may be sewn to the seat cloth 41, for example.

[0040] Referring to FIGS. 5 and 6 together, as described above, the peripheral edge of the mouth portion 510 of the block bag 51 is connected to the first position 411 on the inner surface 41b of the seat cloth 41 to form an annular sewing line. The first position 411 is spaced a certain distance from the edge of the operation port 410, and the operation port 410 is located at the center of the region surrounded by the first position 411. In some modified embodiments, referring to FIG. 7, a part of the peripheral edge of the mouth portion 510 of the block bag 51 is connected to the inner surface 41b of the seat cloth 41 at a certain distance from a part of the peripheral edge of the operation port 410, and another part of the peripheral edge of the mouth portion 510 of the block bag 51 may be connected to the inner surface 41b of the seat cloth 41 so as to substantially overlap a part of the peripheral edge of the operation port 410. In some other modified embodiments, the periphery of the mouth portion 510 of the block bag 51 may be connected to the seat cloth 41 so as to completely overlap the periphery of the operation port 410. In some other modified embodiments, the mouth portion 510 of the block bag 51 surrounds the operation port 410 and is connected to the outer surface 41a of the seat cloth 41, and the bag body of the block bag 51 extends into the recess 110 through the operation port 410.

[0041] Figures 8 and 9 show still other modified embodiments of a method of connecting the block bag 51 to the sheet cloth 41. The peripheral edge of the mouth portion 510 of the block bag 51 is connected to the first position 411 on the inner surface 41b of the sheet cloth 41, and a part of the bag body of the block bag 51 is connected to the second position 412 on the inner surface 41b of the sheet cloth 41. The second position 412 is farther from the operation port 410 than the first position 411, and is arranged such that the hanging end of the block bag 51 is located. In some embodiments, the bag body of the block bag 51 is connected to the second position 412 of the sheet cloth 41 by, for example, sewing or adhesion. In some embodiments, the second position 412 is on the rear side of the operation port 410 and is adapted to the moving direction when inserting a hand into the operation port 410 to release the lock of the lock member 3.

[0042] Figure 10 shows still another modified embodiment of a method of connecting the block bag 51 to the sheet cloth 41. Not only is the periphery of the mouth portion 510 of the block bag 51 connected to the first position 411 on the inner surface 41b of the sheet cloth 41, but also a part of the bag body of the block bag 51 is connected to the second position 412 on the inner surface 41b of the sheet cloth 41 via a traction belt 501 to position the hanging end of the block bag 51. Depending on the embodiment, the traction belt 501 may be an elastic traction belt.

[0043] Referring to FIGS. 11 and 12, a partial cross-sectional view and a partial top view of a child safety seat 100 according to a second embodiment of the present invention are shown. The main difference between the second embodiment and the first embodiment described above lies in the mounting of the barrier structure 5, and parts that are the same as or similar to those in the first embodiment are not described in detail here.

[0044] Referring to FIGS. 11 and 12, the barrier structure 5 includes a first block sheet 52 made of an elastic fabric. The peripheral edge of the first block sheet 52 is connected to the sheet fabric 41 to close the operation port 410. The first block sheet 52 made of an elastic fabric has a certain elasticity, and the first block sheet 52 can be elastically deformed by the force applied by hand, so that the hand can enter the operation port 410 and unlock the locking member 3 through the first block sheet 52.

[0045] As shown in FIG. 12, the peripheral edge of the first block sheet 52 is connected to the inner surface 41b of the sheet fabric 41, for example, by sewing, to form an annular sewing line 502. The area of the first block sheet 52 is larger than the area of the operation port 410, providing sufficient elastic deformation. In other embodiments, the peripheral edge of the first block sheet 52 may be connected to the inner surface 41b of the sheet fabric 41, for example, by adhesion, buttoning, etc.

[0046] FIGS. 13 and 14 show a modification of the method of connecting the first block sheet 52 to the sheet fabric 41. Since the peripheral edge of the first block sheet 52 can be connected to the peripheral edge of the operation port 410 and the first block sheet 52 can be disposed within the operation port 410, it is possible to prevent dust from being trapped in the gap between the first block sheet 52 and the sheet fabric 41 without damaging the appearance of the child safety seat 100. In a modification not shown, the peripheral edge of the first block sheet 52 made of an elastic fabric can be connected to the outer surface 41a of the sheet fabric 41, for example, to close the operation port 410, and it is also possible to prevent foreign objects from falling from the operation port 410 into the locking member 3.

[0047] In some embodiments, the operation port 410 closed by the first block sheet 52 is located diagonally in front of the locking member 3. In this case, in the above first embodiment, a partition plate 45 may also be provided on the sheet fabric 41.

[0048] In some embodiments, the operation port 410 can be disposed directly above the locking member 3 to minimize the distance between the operation port 410 and the locking member 3, thereby reducing the requirements for the elastic deformation ability of the first block sheet 52. In this case, the partition plate 45 may not be provided on the sheet cloth 41.

[0049] Referring to FIG. 15, a partial top perspective view of a child safety seat 100 according to a third embodiment of the present invention is shown. The main difference between the third embodiment and the foregoing embodiments lies in the implementation of the barrier structure 5. For parts that are the same as or similar to the foregoing embodiments, detailed descriptions are not provided herein.

[0050] As shown in FIG. 15, the barrier structure 5 includes a second block sheet 53 that covers the operation port 410 on the outer surface 41a of the sheet cloth 41. A part of the peripheral edge of the second block sheet 53 is connected to the outer surface 41a of the sheet cloth 41, for example, by sewing, to form an unclosed sewing line 503. A gap 530 communicating with the operation port 410 is formed between another part of the peripheral edge of the second block sheet 53 and the outer surface 41a of the sheet cloth 41. The hand passes through the gap 530 and the operation port 410 to unlock the locking member 3. The second block sheet 53 may be made of cloth, and may further be made of elastic cloth. When unlocking the locking member 3 without passing through the operation port 410, since the second block sheet 53 is attached to the seat portion 41 to cover the operation port 410, the gap 530 can be basically ignored, and the second block sheet 53 can effectively prevent foreign objects from falling into the locking member 3 through the operation port 410. When it is necessary to unlock the locking member 3, the hand can open the gap 530, enter the operation port 410, and unlock the locking member 3.

[0051] Referring to FIGS. 16 and 17, a partial top view of a child safety seat 100 according to a fourth embodiment of the present invention is shown. The main difference between the fourth embodiment and the foregoing embodiments lies in the implementation of the barrier structure 5. For parts that are the same as or similar to the foregoing embodiments, detailed descriptions are not provided herein.

[0052] As shown in FIGS. 16 and 17, the barrier structure 5 includes a first flip cover 54, and the trailing edge 541 of the first flip cover 54 is connected to, for example, the outer surface 41a of the seat fabric 41. The first flip cover 54 rotates downward about the trailing edge 541 to a closed position, closing the operation port 410 (FIG. 16), thereby preventing foreign objects from entering the locking member 3 through the operation port 410. The first flip cover 54 rotates upward about the trailing edge 541 to an open position, exposing the operation port 410 (FIG. 17), thereby enabling the unlocking of the locking member 3 through the operation port 410.

[0053] Referring to FIG. 17, a holding device 6 for holding the first flip cover 54 in the closed position is disposed between the first flip cover 54 and the seat fabric 41. When it is not necessary to unlock the locking member 3, the holding device 6 stably holds the first flip cover 54 in the closed position. The holding device 6 can be implemented in various ways. For example, the holding device 6 may include fasteners that cooperate with each other, and the fasteners may be hook-and-loop fasteners (such as Velcro (registered trademark)), magnetic members, snaps, or the like.

[0054] As can be seen from FIG. 17, the side surface of the seat fabric 41 facing the child's buttocks is the upper surface 41c, the side surface folded back from the upper surface 41c is the front side surface 41d, and the front side surface 41d that basically faces forward serves as a portion for supporting the child's calf. An operation port 410 is provided on the upper surface 41c of the seat fabric 41, and a through hole 401 through which the front end 221 of the adjustment belt 22 passes is provided on the front side surface 41d of the seat fabric 41. When in the closed position, the first flip cover 54 covers the operation port 410 but does not cover the through hole 401.

[0055] Referring to FIG. 18, a partial top view of the child safety seat 100 according to the fifth embodiment of the present invention is shown. The main difference between the fifth embodiment and the foregoing embodiments lies in the implementation of the barrier structure 5, and parts that are the same as or similar to those in the foregoing first embodiment will not be described in detail here.

[0056] Referring to FIGS. 18 and 19 together, in the fifth embodiment, the barrier structure 5 includes an adhesive layer 56 that covers the lock member 3, and the adhesive layer 56 is provided with an inlet 561 and an outlet 562 for the front end 221 of the adjustment belt 22 to pass through. The front end 221 of the adjustment belt 22 enters between the clamp plate 31 and the bottom wall 322 of the lock member 3 through the inlet 561 and extends forward through the outlet 562. The adhesive layer 56 has elasticity and is formed of a soft adhesive such as silica gel. Since the adhesive layer 56 is elastically deformable, on the one hand, it does not affect the unlocking operation of the lock member 3 (pressing the second end 312 of the clamp plate 31 through the adhesive layer 56), and on the other hand, the gap between the adhesive layer 56 and the adjustment belt 22 at the inlet 561 and the outlet 562 is small, effectively preventing foreign objects from entering the lock member 3 and preventing the lock member 3 from being pinched due to the intrusion of foreign objects.

[0057] Referring to FIGS. 20 and 21, a partial top view of the child safety seat 100 according to the sixth embodiment of the present invention is shown. The main difference between the sixth embodiment and the foregoing embodiments lies in the implementation of the barrier structure 5, and parts that are the same as or similar to the foregoing first embodiment will not be described in detail here.

[0058] As shown in FIG. 20, the barrier structure 5 includes a second flip cover 57. The rear end of the second flip cover 57 is rotatably connected to the seat portion 11 via a rotation axis (not shown), and the front end of the second flip cover 57 is used as an operation end. After putting a hand inside the sheet cloth 41 from the operation port 410, by applying torque to the front end of the second flip cover 57, the second flip cover 57 can be rotated about the rotation axis. The second flip cover 57 rotates about the rotation axis to a closed position covering the recess 110 in the upper part of the locking member 3, preventing foreign objects that have fallen from the operation port 410 from entering the locking member 3. As shown in FIG. 21, the second flip cover 57 rotates about the rotation axis to an open position, opening the upper part of the recess 110 to expose the locking member 3, and the locking of the locking member 3 can be released.

[0059] In some embodiments, an elastic member (not shown) is provided between the second flip cover 57 and the seat portion 11, and the elastic member is configured to hold the second flip cover 57 in the closed position. The elastic member is, for example, a torsion spring that sleeves the rotation axis of the second flip cover 57.

[0060] Referring to FIG. 22, a partial top view of the child safety seat 100 according to the seventh embodiment of the present invention is shown. The main difference between the seventh embodiment and the foregoing embodiments lies in the implementation of the barrier structure 5. For parts that are the same or similar to the first embodiment described above, they will not be described in detail here.

[0061] As shown in FIG. 22, the barrier structure 5 includes a third block sheet 58 made of an elastic fabric. The third block sheet 58 is connected to the seat portion 11, covers the recess 110 in the upper part of the locking member 3, and separates the locking member 3 from the operation port 410. The third block sheet 58 can be fixed to the seat portion 11 by any suitable method such as adhesion, clipping, buttoning, etc.

[0062] When it is necessary to release the lock of the lock member 3, if you reach your hand from the operation port 410 to the inside of the seat cloth 41 and press the third block sheet 58, the third block sheet 58 made of elastic fabric will elastically deform, allowing your hand to touch the lock member 3 and release the lock of the lock member 3. The third block sheet 58 that covers the recess 110 and is located above the lock member 3 can effectively block foreign objects that have fallen from the operation port 410 from entering the lock member 3.

[0063] Referring to FIG. 23, a partial top view of the child safety seat 100 according to the eighth embodiment of the present invention is shown. Compared with the foregoing embodiments, in the eighth embodiment, in addition to the barrier structure 5 provided in the child safety seat 100 (the barrier structure 5 is shown as a barrier bag 51 in FIG. 23), the seat cloth 41 is further provided with a shielding flange 413 for shielding the through hole 401. For components that are the same or similar to those in the foregoing embodiments in the eighth embodiment, they will not be described in detail here.

[0064] As shown in FIG. 23, the through hole 401 is disposed on the front surface 41d of the seat cloth 41 and is located in front of the operation port 410. The front end 221 of the adjustment belt 22 passes through the through hole 401. The shielding flange 413 is disposed above the through hole 401. The shielding flange 413 serves to shield the through hole 401. In some embodiments, the shielding flange 413 may be, for example, an integral structure with the material forming the upper surface 41c of the seat cloth 41. The shielding flange 413 shields the through hole 401 from above. When the adjustment belt 22 is not being pulled, the front edge of the shielding flange 413 naturally hangs down, shielding the through hole 401 and preventing foreign objects from easily entering the lock member 3 from the through hole 401. Depending on the embodiment, a detachable connection structure such as Velcro (registered trademark) or a snap fastener may be provided between the front edge of the shielding flange 413 and the front side surface 41d of the seat cloth 41.

[0065] Referring to FIG. 24, a partial top view of the child safety seat 100 according to the ninth embodiment of the present invention is shown. The main differences between the ninth embodiment and the foregoing embodiments lie in the implementation of the barrier structure 5 and the arrangement position of the operation port 410. For parts that are the same as or similar to the foregoing embodiments, detailed description will not be provided here.

[0066] As shown in FIG. 24, the operation port 410 is arranged on the front side surface 41d of the seat fabric 41, and the front end 221 of the adjustment belt 22 passes through the operation port 410. In this way, there is no need to separately provide a through hole 401 for the adjustment belt 22 to pass through in the seat fabric 41. The barrier structure 5 includes a third flip cover 59 for shielding the operation port 410. More specifically, the rear edge 591 of the third flip cover 59 is connected to the seat fabric 41, for example, by sewing, and the rear edge of the third flip cover 59 is located above the operation port 410. The front edge of the third flip cover 59 naturally hangs down by gravity and can cover the operation port 410. In some embodiments, a detachable connection structure such as Velcro (registered trademark) or snap fastener may be provided between the front end of the third flip cover 59 and the front side surface 41d of the seat fabric 41.

[0067] In the ninth embodiment, by moving the operation port 410 forward, the front end 221 of the adjustment belt 22 can be made to protrude from the operation port 410, eliminating the through hole 401 and simplifying the structure of the seat fabric 41. At the same time, it can be made more difficult for foreign objects falling from above to directly fall into the operation port 410. The third flip cover 59 shields the operation port 410, making it even more difficult for foreign objects to enter the locking member 3 through the operation port 410. When it is necessary to release the lock of the locking member 3, one can insert a hand into the operation port 410 from under the first flip cover 54 to operate the locking member 3.

[0068] The technical features of the above embodiments can be arbitrarily combined. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described, but all combinations of the technical features are considered to be included within the scope described in this specification as long as they do not conflict with each other.

[0069] The above embodiments only illustrate some embodiments of the present invention, and the description is specific and detailed. Therefore, it should not be understood as limiting the scope of the present invention. Those skilled in the art should note that without departing from the concept of the present invention, further changes and improvements can be made, and all of these are included in the protection scope of the present invention. Therefore, the protection scope of the present invention should follow the appended claims.

Claims

1. A child safety seat, comprising: a seat housing including a seat portion for supporting a child's waist; an adjustment belt having a rear end connected to a shoulder belt of the child safety seat and a front end passing through a front end of the seat portion; a locking member disposed on the seat portion for locking the adjustment belt to prevent movement thereof; a seat cover including a seat fabric covering the seat portion, the seat fabric being provided with an operation port through which a hand passes to release the lock of the locking member; a barrier structure configured to prevent foreign matter from falling onto the locking member through the operation port.

2. The child safety seat according to claim 1, wherein the barrier structure comprises a block bag having a predetermined depth, an opening of the block bag being disposed around the operation port and connected to the seat fabric.

3. The block bag is made of an elastic fabric and / or a peripheral edge of the opening of the block bag is connected to the seat fabric by sewing or adhesion.

4. The child safety seat according to claim 2 or 3, wherein a peripheral edge of the opening of the block bag is connected to a first position of the seat fabric, and a part of a body of the block bag is connected to a second position on an inner surface of the seat fabric, the second position being farther from the operation port than the first position.

5. The child safety seat according to claim 4, wherein a part of the body of the block bag is connected to the second position via a traction belt, or a part of the body of the block bag is connected to the second position by sewing or adhesion.

6. The child safety seat according to claim 1, wherein the barrier structure comprises a first block sheet formed of an elastic fabric, a peripheral edge of the first block sheet being connected to the seat fabric to close the operation port.

7. The peripheral edge of the first block sheet is connected to an inner surface of the seat fabric, and an area of the first block sheet is larger than an area of the operation port, or the peripheral edge of the first block sheet is connected to a peripheral edge of the operation port, and the first block sheet is disposed within the operation port.

8. The child safety seat according to claim 6 or 7, wherein the operation port is disposed directly above the locking member.

9. The barrier structure includes a second blocking sheet that covers the operation port on the outer surface of the seat fabric. A part of the peripheral edge of the second blocking sheet is connected to the outer surface of the seat fabric, and another part of the peripheral edge of the second blocking sheet is connected to the outer surface of the seat fabric, forming a gap communicating with the operation port. The child safety seat according to claim 1.

10. The barrier structure includes a first flip cover. The trailing edge of the first flip cover is connected to the outer surface of the seat fabric. The first flip cover rotates downward about its trailing edge to a closed position, closing the operation port. The first flip cover rotates upward about its trailing edge to an open position, exposing the operation port. The child safety seat according to claim 1.

11. A holding device for holding the first flip cover in the closed position is disposed between the first flip cover and the seat fabric. The child safety seat according to claim 10.

12. The holding device includes fasteners that cooperate with each other. The fasteners are hook-and-loop fasteners, magnetic members, or snaps. The child safety seat according to claim 11.

13. The barrier structure includes an adhesive layer that covers the locking member. The adhesive layer is provided with an inlet and an outlet for the adjustment belt to pass through. The child safety seat according to claim 1.

14. The seat portion includes a recess for accommodating the locking member. The barrier structure includes a second flip cover whose rear end is connected to the seat portion via a pivot shaft and whose front end is used as an operation end. The second flip cover rotates around the pivot shaft to a closed position, covering the recess above the locking member. The second flip cover rotates around the pivot shaft to an open position, exposing the locking member. The child safety seat according to claim 1.

15. An elastic member is provided between the second flip cover and the seat portion. The elastic member is configured to hold the second flip cover in the closed position. The child safety seat according to claim 14.

16. The seat portion includes a recess for accommodating the locking member. The barrier structure includes a third block sheet made of an elastic fabric, the third block sheet being connected to the seat portion, covering a recess above the locking member, and separating the locking member from the operation port, the child safety seat according to claim 1.

17. The operation port is disposed on the front surface of the seat fabric, the front end of the adjustment belt passes through the operation port, the barrier structure includes a third flip cover, the rear end of the third flip cover is connected to the seat fabric, disposed above the operation port, and the third flip cover shields the operation port, the child safety seat according to claim 1.

18. A through hole is provided in the front side surface of the seat fabric, and the adjustment belt passes through the through hole. A shielding flange is provided on the seat fabric above the through hole, and the shielding flange shields the through hole, the child safety seat according to claim 1.

19. The seat portion includes a recess for accommodating the locking member. The seat fabric is disposed above the recess and includes a partition plate covering the locking member. The operation port is disposed in front of the partition plate, the child safety seat according to claim 1.

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