Basket base and child safety seat

Abstract

The utility model relates to the field of child safety seats, and discloses a basket base and a child safety seat. The basket base comprises a base body, and a containing groove is formed in the bottom. The main supporting leg is movably arranged on the base body and moves between a storage position and a supporting position, when the main supporting leg is located at the storage position, the main supporting leg is stored in the storage groove, and when the main supporting leg is located at the supporting position, at least part of the main supporting leg is located outside the storage groove; the auxiliary supporting leg is movably arranged on the main supporting leg, a containing groove is formed in the lower side of the main supporting leg, the auxiliary supporting leg has a storage state and an extending state, in the storage state, the auxiliary supporting leg is located in the containing groove, and in the extending state, at least part of the auxiliary supporting leg moves out of the containing groove and is located at the bottom of the main supporting leg to support the main supporting leg. On the basis of angle adjustment of the main supporting leg, the adjustment angle of the main supporting leg can be further expanded through the auxiliary supporting leg, so that the angle adjustment range of the basket base is expanded, and the problems that the angle adjustment range of an existing child safety seat is limited, and the child safety seat is difficult to adapt to seats of different vehicles are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's safety seat technical field, concretely relates to a basket base and children's safety seat. BACKGROUND

[0002] Children's safety seat is a device specially designed for children, installed on the car seat to effectively improve the safety of children riding. When the children's safety seat is installed on the vehicle seat, due to the different seat angles of different vehicle models, in order to improve the comfort of the children's safety seat and improve the safety protection of children, an angle adjusting mechanism is usually provided on the basket base for adjusting the angle of the children's safety seat according to the seat angle of different vehicle models.

[0003] In the prior art, in order to adjust the angle of the children's safety seat, a rotatable main leg is usually provided on the basket base, and a groove is provided at the bottom of the basket base, the main leg is stored in the groove, when it is necessary to adjust the angle of the children's safety seat, the main leg is rotated and extended from the groove, one end of the main leg extended from the basket base replaces the bottom surface of the basket base and contacts with the vehicle seat, thereby changing the angle of the children's safety seat.

[0004] However, in the above related technology, the size of the main leg is limited due to the overall volume of the children's safety seat, thereby the range of angle adjustment of the children's safety seat is limited, and it is difficult to adapt to the seats of different vehicles. SUMMARY

[0005] Therefore, the utility model provides a basket base and children's safety seat to solve the problem of small angle adjustment range of children's safety seat and difficult to adapt to the seats of different vehicles.

[0006] In the first aspect, the utility model provides a basket base, which comprises:

[0007] A base body is provided with a storage groove at the bottom;

[0008] A main leg is movably arranged on the base body and moves between a storage position and a supporting position, when in the storage position, the main leg is stored in the storage groove, and when in the supporting position, at least part of the main leg is located outside the storage groove;

[0009] A sub-leg is movably arranged on the main leg, the lower side of the main leg is provided with a containing groove, and the sub-leg has a storage state and an extended state, in the storage state, the sub-leg is located in the containing groove, and in the extended state, at least part of the sub-leg moves out of the containing groove and is located at the bottom of the main leg to support the main leg.

[0010] Beneficial effects: the basket base of the utility model, on the basis of the main support leg, increase the vice support leg, can further expand the adjustment angle of the main support leg by the vice support leg on the basis of the adjustment angle of the main support leg while the basket base angle is adjusted by the main support leg, thereby expand the angle adjustment range of the basket base, solve the problem that the existing child safety seat angle adjustment range is limited, difficult to adapt to the seat of different vehicles.

[0011] In a specific embodiment, the vice support leg has a front end part rotationally connected with the main support leg and a rear end part opposite to the front end part, and when the storage state is converted to the extended state, the rear end part moves to the bottom of the main support leg.

[0012] In a specific embodiment, the front end part of the vice support leg is slidable along the main support leg, one of the front end part and the inner wall of the accommodating groove is provided with a sliding pin, and the other is provided with a sliding groove, the sliding pin slides along the sliding groove, and the sliding pin can rotate in the sliding groove; when the storage state is converted to the extended state, the vice support leg moves downward and rearward relative to the main support leg.

[0013] In a specific embodiment, the sliding pin is arranged on the vice support leg, and the sliding groove is arranged on the groove wall of the accommodating groove, the sliding groove has a start end and an end end, when the sliding pin is located at the start end, the vice support leg is located in the accommodating groove, and when the sliding pin slides to the end end, the rear end part of the vice support leg can move to the bottom of the main support leg to support the main support leg.

[0014] From the start end to the end end, the sliding groove includes an oblique sliding segment and a horizontal sliding segment, the oblique sliding segment is arranged inclined downward rearward, and the horizontal sliding segment is arranged extending along the front-rear direction.

[0015] In a specific embodiment, the basket base further comprises a limiting pin, the limiting pin is used for limiting the vice support leg in the extended state.

[0016] The limiting pin is arranged at one end of the vice support leg away from the sliding pin, the bottom surface of the main support leg is provided with a limiting groove, the limiting groove is located beside the accommodating groove, and the limiting pin can be inserted and positioned into the limiting groove.

[0017] In a specific embodiment, the basket base further comprises a vice support leg reset member, the vice support leg reset member is arranged between the vice support leg and the groove wall of the accommodating groove, when the vice support leg is moved to the extended state under the action of external force, the vice support leg reset member is elastically deformed and accumulates elastic force, and after the action of external force is cancelled, the elastic force of the vice support leg reset member drives the vice support leg to reset and move to the storage state.

[0018] In one specific embodiment, the main leg has a receiving position and a plurality of extended positions, in the receiving position, the main leg is located in the receiving slot, in different extended positions, the main leg extends out of the receiving slot by different distances;

[0019] The locking member is movably arranged in the base body and defines the main leg in a corresponding extended position when moved to a locking position;

[0020] The locking member is rotatably arranged on the base body and has a locking rod, the main leg is provided with a plurality of locking slots for positioning the locking rod, the plurality of locking slots are arranged along the thickness direction of the main leg, and the main leg is locked when the locking rod is rotated to the locking slot.

[0021] In one specific embodiment, the locking member is hinged to the inner wall of the base body near one side of the base body, the lower end of the locking member extends into the receiving slot, and the locking rod is arranged at the lower end of the locking member;

[0022] The basket base also has an unlocking member movably arranged in the base body and cooperating with the locking rod to drive the locking rod to move away from the locking slot;

[0023] The locking member is rotatably arranged on the base body through a rotating shaft, and the locking member has an upper extension segment, which is located on both sides of the rotating shaft opposite to the locking rod;

[0024] The unlocking member is located opposite to the upper extension segment and engages with the upper extension segment to drive the upper extension segment to move;

[0025] The unlocking member is slidably arranged on the base body in the front-rear direction, part of the unlocking member is exposed outside the base body to form an operation part, and the end of the unlocking member away from the operation part engages with the upper extension segment.

[0026] In one specific embodiment, the main leg and the base body are further provided with a main leg reset member, the main leg moves towards the receiving slot under the action of external force, the main leg reset member deforms and accumulates elastic force, and the elastic force of the main leg reset member drives the main leg to reset and move after the external force is removed;

[0027] The main leg reset member is a torsion spring, and the two ends of the main leg reset member abut on the main leg and the base body, respectively;

[0028] The lower side wall of the locking slot is provided with a limiting protrusion, and the limiting protrusion is located at the slot opening of the locking slot;

[0029] The limiting protrusion is provided with a guide inclined surface towards the side outside the locking groove.

[0030] The main legs extend along the length direction and width direction of the receiving groove respectively.

[0031] Secondly, the utility model provides a child safety seat, including:

[0032] The seat body is installed on the basket base.

[0033] The basket base, the seat body is installed on the basket base.

[0034] Beneficial effect: the child safety seat of the utility model has all the advantages of the basket base, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0036] Figure 1 It is an explosion schematic view of the basket base of the embodiment of the utility model;

[0037] Figure 2 It is a top view of the basket base of the embodiment of the utility model;

[0038] Figure 3 It is Figure 2 It is a sectional view of A-A;

[0039] Figure 4 It is Figure 3 It is an enlarged schematic view of B;

[0040] Figure 5 It is a sectional view of the basket base of the embodiment of the utility model for showing one of the extension positions of the main leg;

[0041] Figure 6 It is a sectional view of the basket base of the embodiment of the utility model for showing one of the extension positions of the main leg;

[0042] Figure 7 It is a sectional view of the basket base of the embodiment of the utility model for showing one of the extension positions of the main leg;

[0043] EXPLANATION OF REFERENCE NUMERALS:

[0044] 100. Base body; 101. Upper shell; 102. Lower shell; 1021. Storage slot; 103. Back; 200. Main support leg; 201. Locking slot; 2011. Limiting protrusion; 2012. Guide slope; 202. Receiving slot; 2021. Sliding slot; 203. Limiting slot; 301. Locking component; 3011. Locking rod; 3012. Upper extension section; 3013. Rotating shaft; 302. Unlocking component; 400. Main support leg reset component; 500. Secondary support leg; 501. Sliding pin; 502. Front end; 503. Rear end; 600. Limiting pin; 602. Secondary support leg reset component. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0046] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0047] According to embodiments of the present invention, on the one hand, such as Figure 1 As shown, a basket base is provided, which mainly includes a base body 100, a main support leg 200 and a secondary support leg 500.

[0048] Specifically, the base body 100 has a storage slot 1021 at its bottom. The opening of the storage slot 1021 faces downwards from the base body 100.

[0049] The main support leg 200 is movably mounted on the base body 100 and can move between a storage position and a support position. In the storage position, the main support leg 200 is stored within the storage slot 1021. In the support position, at least a portion of the main support leg 200 is outside the storage slot 1021. This allows the main support leg 200 to be adjusted to extend out of or retract into the storage slot 1021. When the main support leg 200 extends out of the storage slot 1021 and is limited to the support position, the basket base is adjusted to the corresponding angle.

[0050] The secondary support leg 500 is movably mounted on the main support leg 200. The main support leg 200 has a receiving groove 202 on its lower side. The secondary support leg 500 has a retracted state and an extended state. In the retracted state, the secondary support leg 500 is located within the receiving groove 202. In the extended state, at least part of the secondary support leg 500 moves outside the receiving groove 202 and is located at the bottom of the main support leg 200 to support it. When the secondary support leg 500 is not in use, since it is located within the receiving groove 202, it does not affect the use of the main support leg 200. At this time, the adjustment angle is only related to the angle of the main support leg 200. If the angle adjustment range of the main support leg 200 is insufficient, the secondary support leg 500 can be pulled out of the receiving groove 202 to be in the extended state, thereby increasing the angle adjustment range of the basket base and meeting the user's needs for a wide range of multi-angle adjustments.

[0051] In this embodiment, the carrier base adds a secondary support leg 500 to the main support leg 200. This allows for angle adjustment of the carrier base using the main support leg 200, while simultaneously expanding the adjustment range of the main support leg 200 using the secondary support leg 500. This expands the angle adjustment range of the carrier base and solves the problem of limited angle adjustment range of existing child safety seats, making it difficult to adapt to seats in different vehicles.

[0052] In one specific embodiment, such as Figure 3 As shown, the secondary support leg 500 has a front end 502 rotatably connected to the main support leg 200 and a rear end 503 relatively far from the front end 502. When transitioning from the retracted state to the extended state, the rear end 503 moves to the bottom of the main support leg 200. By dividing the secondary support leg 500 into the front end 502 and the rear end 503, with the front end 502 rotatably connected to the main support leg 200 and the rear end 503 able to rotate out of or into the receiving groove 202 relative to the front end 502, adjustment is relatively convenient. When adjustment of the secondary support leg 500 is required, only the rear end 503 needs to be pulled.

[0053] In one specific embodiment, such as Figure 3 As shown, the front end 502 of the secondary support leg 500 can slide along the main support leg 200. A sliding pin 501 is provided on one of the front end 502 and the inner wall of the receiving groove 202, and a sliding groove 2021 is provided on the other. The sliding pin 501 slides along the sliding groove 2021 and can rotate within the sliding groove 2021. When transitioning from the retracted state to the extended state, the secondary support leg 500 moves downwards and backwards relative to the main support leg 200. By providing the sliding groove 2021 and the sliding pin 501, the front end 502 can slide a certain distance while rotating, facilitating the adjustment of the extended position of the secondary support leg 500. This ensures that when the secondary support leg 500 extends, it can approach the main support leg 200 and be confined to the main support leg 200, thereby facilitating the support and stability of the secondary support leg 500.

[0054] In one specific embodiment, a sliding pin 501 is disposed on the secondary support leg 500, and a sliding groove 2021 is disposed on the groove wall of the receiving groove 1021. The sliding groove 2021 has a beginning end and an end end. When the sliding pin 501 is located at the beginning end, the secondary support leg 500 is located in the receiving groove 202. When the sliding pin 501 slides to the end end, the rear end 503 of the secondary support leg 500 can be moved to the bottom of the main support leg 200 to support the main support leg 200.

[0055] like Figures 5 to 7 As shown, from the beginning to the end, the sliding groove 2021 includes an inclined sliding section and a horizontal sliding section. The inclined sliding section is inclined downwards and backwards, and the horizontal sliding section extends in the front-to-back direction. Thus, the front end 502 can rotate and move along the inclined sliding section with the sliding pin 501, and the rear end 503 of the secondary support leg 500 moves toward the rear end of the main support leg 200. After the sliding pin 501 enters the horizontal sliding section, the sliding pin 501 only slides, and the front end 502 follows the sliding pin 501 to slide along the horizontal sliding section to the end of the horizontal sliding section. At this time, the rear end 503 of the secondary support leg 500 moves to below the rear end of the main support leg 200, and after supporting the secondary support leg 500, the secondary support leg 500 opens relative to the main support leg 200.

[0056] like Figure 7 As shown, in order to limit the state of the secondary support leg 500 after it is opened, in a specific embodiment, the basket base also includes a limiting pin 600, which is used to limit the secondary support leg 500 to the extended state. Specifically, the limiting pin 600 is located at the end of the secondary support leg 500 away from the sliding pin 501, and the bottom surface of the main support leg 200 is provided with a limiting groove 203, which is located next to the receiving groove 202. The limiting pin 600 can be inserted and positioned into the limiting groove 203. At this time, the secondary support leg 500 and the main support leg 200 are stably connected together, thereby expanding the angle of the main support leg 200 by using the secondary support leg 500.

[0057] To facilitate the reset of the secondary support leg 500, i.e., its transition from the extended state to the retracted state, in one specific embodiment, the basket base further includes a secondary support leg reset member 602. The secondary support leg reset member 602 is located between the secondary support leg 500 and the wall of the receiving groove 202. When the secondary support leg 500 is moved to the extended state under external force, the secondary support leg reset member 602 expands and contracts, accumulating a rebound force. After the external force is removed, the rebound force of the secondary support leg reset member 602 drives the secondary support leg 500 to reset and move to the retracted state. The secondary support leg reset member 602 can be a compression spring, with one end connected to the wall of the receiving groove 202 and the other end connected to the inner wall of the secondary support leg 500.

[0058] In this embodiment, the secondary support leg 500 is open on the side facing the main support leg 200. In order to ensure the strength of the secondary support leg 500, multiple support ribs can be provided in the opening of the secondary support leg 500. One end of the compression spring can extend into the opening and connect with the bottom inner wall of the secondary support leg 500. This arrangement helps to prevent the compression spring from protruding from the secondary support leg 500.

[0059] In one specific embodiment, such as Figure 6 As shown, the main support leg 200 has a storage position and multiple extension positions. In the storage position, the main support leg 200 is located in the storage groove 1021. In different extension positions, the main support leg 200 extends out of the storage groove 1021 by different distances. Thus, the main support leg 200 can be adjusted to the corresponding extension position according to different angle requirements.

[0060] To facilitate support and positioning of the main support leg 200 after it extends, this embodiment provides a locking member 301. The locking member 301 is movably disposed within the base body 100 and, when moved to the locking position, restricts the main support leg 200 to the corresponding extended position.

[0061] Specifically, the locking element 301 is rotatably mounted on the base body 100, for example, on the inner wall of the base body 100, and has a locking rod 3011. The main support leg 200 is provided with a locking groove 201 for positioning the locking rod 3011. Multiple locking grooves 201 are provided, arranged along the thickness direction of the main support leg 200. When the locking rod 3011 rotates into the locking groove 201, as... Figure 5 As shown, the main support leg 200 is locked. The locking rod 3011 can be installed by providing a shaft hole at the lower end of the locking member 301, with the locking rod 3011 passing through the shaft hole and being interference-fitted with the shaft hole. The locking rod 3011 can enter and exit the locking groove 201 from the opening of the locking groove 201.

[0062] In one specific embodiment, the locking member 301 may be in the shape of a bent rod. The side of the locking member 301 near the base body 100 is hinged to the inner wall of the base body 100. The lower end of the locking member 301 extends into the storage groove 1021, and the locking rod 3011 is disposed at the lower end of the locking member 301.

[0063] To facilitate unlocking of locking component 301, such as Figure 1 and Figure 2 As shown, the basket base also has an unlocking component 302, which is movably disposed on the base body 100 and cooperates with the locking component 301 to drive the locking lever 3011 to move in a direction disengaging from the locking groove 201. Specifically, the locking component 301 is rotatably mounted on the base body 100 via a pivot 3013. The locking component 301 has an upper extension 3012, which is located on both sides of the pivot 3013 opposite to the locking lever 3011.

[0064] Specifically, the unlocking member 302 is positioned opposite to and engages with the upper extension section 3012 to drive the upper extension section 3012 to move. The unlocking member 302 is slidably disposed on the base body 100 in the front-back direction, with a portion of the unlocking member 302 exposed outside the base body 100 to form an operating part. The end of the unlocking member 302 away from the operating part engages with the upper extension section 3012. To facilitate user pressing of the operating part, the operating part can be located at the front of the back 103 of the base body 100. By pressing the operating part, the locking member 301 can be pushed to rotate around the pivot 3013. Since the lower end of the locking member 301 rotates forward, the locking rod 3011 disengages from the locking groove 201, and the locking rod is unlocked. At this time, the angle of the main support leg 200 can be manually adjusted.

[0065] In one specific embodiment, a main support leg reset member 400 is also provided between the main support leg 200 and the base body 100. Under the action of external force, such as pressing the operating part, a person holds the bottom of the main support leg 200 and applies a pushing force to make the main support leg 200 move toward the storage groove 1021. The main support leg reset member 400 deforms and accumulates rebound force. After the external force is removed, the rebound force of the main support leg reset member 400 drives the main support leg 200 to reset and move. At this time, the locking rod 3011 enters the corresponding locking groove 201.

[0066] Specifically, the main support leg reset component 400 is a torsion spring, and the two ends of the main support leg reset component 400 abut against the main support leg 200 and the base body 100, respectively.

[0067] Furthermore, the base body 100 includes an upper housing 101 and a lower housing 102 that is snapped into the upper housing 101. A storage groove 1021 is provided inside the lower housing 102, and a locking member 301 is hinged to the inner wall of the upper housing 101 via a pivot 3013.

[0068] like Figure 4 As shown, the lower side wall of the locking groove 201 is provided with limiting protrusions 2011, which are located at the opening of the locking groove 201. The side of the limiting protrusion 2011 facing outward from the locking groove 201 is provided with a guide slope 2012, which serves to guide the locking rod 3011 without affecting its entry into the locking groove 201, and also serves to limit its movement.

[0069] In addition, the main support legs 200 extend along the length and width of the storage groove 1021, making the area of ​​the main support legs 200 large enough to increase the contact area and improve the stability of the support provided by the main support legs 200.

[0070] Secondly, this utility model also provides a child safety seat, comprising:

[0071] Seat body;

[0072] The aforementioned carrier base allows the seat body to be mounted on it. By adjusting the angle of the carrier base, the angle of the child safety seat can be freely adjusted to meet the user's multi-angle adjustment needs.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A basket base, characterized in that, include: The base body (100) has a storage slot (1021) at the bottom; The main support leg (200) is movably disposed on the base body (100) and can move between a storage position and a support position. In the storage position, the main support leg (200) is stored in the storage groove (1021). In the support position, at least part of the main support leg (200) is located outside the storage groove (1021). A secondary support leg (500) is movably disposed on the main support leg (200). The main support leg (200) has a receiving groove (202) on its lower side. The secondary support leg (500) has a retracted state and an extended state. In the retracted state, the secondary support leg (500) is located in the receiving groove (202). In the extended state, at least part of the secondary support leg (500) moves outside the receiving groove (202) and is located at the bottom of the main support leg (200) to support the main support leg (200).

2. The basket base according to claim 1, characterized in that, The secondary support leg (500) has a front end (502) rotatably connected to the main support leg (200) and a rear end (503) relatively far from the front end (502). When the leg is switched from the retracted state to the extended state, the rear end (503) moves to the bottom of the main support leg (200).

3. The basket base according to claim 2, characterized in that, The front end (502) of the auxiliary support leg (500) can slide along the main support leg (200). A sliding pin (501) is provided on one of the front end (502) and the inner wall of the receiving groove (202), and a sliding groove (2021) is provided on the other. The sliding pin (501) slides along the sliding groove (2021) and can rotate within the sliding groove (2021). When the auxiliary support leg (500) is switched from the retracted state to the extended state, the auxiliary support leg (500) moves downward and backward relative to the main support leg (200).

4. The basket base according to claim 3, characterized in that, The sliding pin (501) is disposed on the secondary support leg (500), and the sliding groove (2021) is disposed on the groove wall of the receiving groove (1021). The sliding groove (2021) has a beginning end and an end end. When the sliding pin (501) is located at the beginning end, the secondary support leg (500) is located in the receiving groove (202). When the sliding pin (501) slides to the end end, the rear end (503) of the secondary support leg (500) can be moved to the bottom of the main support leg (200) to support the main support leg (200). From the beginning to the end, the sliding groove (2021) includes an inclined sliding section and a horizontal sliding section. The inclined sliding section is inclined downward and backward, and the horizontal sliding section extends in the front-back direction.

5. The basket base according to claim 3, characterized in that, The basket base also includes a limiting pin (600), which is used to limit the auxiliary support leg (500) to the extended state; The limiting pin (600) is located at the end of the secondary support leg (500) away from the sliding pin (501). The bottom surface of the main support leg (200) is provided with a limiting groove (203). The limiting groove (203) is located next to the receiving groove (202). The limiting pin (600) can be inserted and positioned into the limiting groove (203).

6. The basket base according to claim 5, characterized in that, The basket base also includes a secondary support leg reset component (602), which is disposed between the secondary support leg (500) and the groove wall of the receiving groove (202). When the secondary support leg (500) is moved to the extended state under the action of external force, the secondary support leg reset component (602) stretches and deforms and accumulates rebound force. After the action of external force is removed, the rebound force of the secondary support leg reset component (602) drives the secondary support leg (500) to reset and move to the storage state.

7. The basket base according to claim 1, characterized in that, The main support leg (200) has a storage position and multiple extension positions. In the storage position, the main support leg (200) is located in the storage groove (1021). In different extension positions, the main support leg (200) extends out of the storage groove (1021) by different distances. A locking element (301) is movably disposed within the base body (100) and, when moved to the locking position, restricts the main support leg (200) to the corresponding extended position; The locking element (301) is rotatably mounted on the base body (100) and has a locking rod (3011). The main support leg (200) is provided with a locking groove (201) for positioning the locking rod (3011). Multiple locking grooves (201) are provided and arranged along the thickness direction of the main support leg (200). When the locking rod (3011) rotates to the locking groove (201), the movement of the main support leg (200) is locked.

8. The basket base according to claim 7, characterized in that, The locking member (301) is hinged to the inner wall of the base body (100) on the side near the base body (100), the lower end of the locking member (301) extends into the storage groove (1021), and the locking rod (3011) is disposed at the lower end of the locking member (301). The basket base also has an unlocking component (302), which is movably disposed on the base body (100) and cooperates with the locking rod (3011) to drive the locking rod (3011) to move in a direction that disengages from the locking groove (201); The locking member (301) is rotatably mounted on the base body (100) via a pivot (3013). The locking member (301) has an upper extension (3012), which is located on both sides of the pivot (3013) opposite to the locking rod (3011). The unlocking member (302) is positioned opposite to the upper extension (3012) and engages with the upper extension (3012) to drive the upper extension (3012) to move; The unlocking member (302) is slidably disposed on the base body (100) in the front-back direction. Part of the unlocking member (302) is exposed outside the base body (100) to form an operating part. The end of the unlocking member (302) away from the operating part is engaged with the upper extension section (3012).

9. The basket base according to claim 7, characterized in that, A main support leg reset component (400) is also provided between the main support leg (200) and the base body (100). Under the action of external force, the main support leg (200) moves toward the storage groove (1021). The main support leg reset component (400) deforms and accumulates rebound force. After the action of external force is removed, the rebound force of the main support leg reset component (400) drives the main support leg (200) to reset and move. The main support leg reset component (400) is a torsion spring, and the two ends of the main support leg reset component (400) abut against the main support leg (200) and the base body (100) respectively; The lower side wall of the locking groove (201) is provided with limiting protrusions (2011), and the limiting protrusions (2011) are located at the opening of the locking groove (201). The limiting protrusion (2011) has a guide slope (2012) on the side facing outward from the locking groove (201); The main support legs (200) extend along the length and width of the storage groove (1021), respectively.

10. A child safety seat, characterized in that, include: Seat body; The basket base according to any one of claims 1 to 9, wherein the seat body is mounted on the basket base.

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