Safety seat base and safety seat
By introducing a length adjustment mechanism and an automatic tightening mechanism into the base of the child safety seat, the problem of cumbersome manual adjustment of the seat belt is solved, enabling automatic adjustment and stable installation of the seat belt and improving the user experience.
Patent Information
- Application Number
- CN202423323084.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The manual adjustment of seat belts in existing child safety seats is cumbersome and laborious, especially the tightness adjustment of the hooks in the LATCH fastening method.
The safety seat base includes a base body, a length adjustment mechanism, and a seat belt. The length adjustment mechanism automatically adjusts the extension length of the seat belt, and the combination of a spring and ratchet mechanism enables the automatic tightening and locking of the seat belt.
It features an automatic seatbelt tightening function, saving time and effort, and improving the stability and ease of installation of the child safety seat in the car.
Smart Images

Figure CN223720725U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to children's articles technical field especially, relate to a safe seat base and safe seat. BACKGROUND
[0002] The safe seat is a kind of seat on the seat of car, can be used for children to ride and can be tied when car accident occurs to guarantee life safety.Safety seat fixing mode mainly includes three kinds:ISOFIX fixed mode, safety belt fixed mode and LATCH fixed mode.LATCH fixed mode is usually added hook on the basis of ISOFIX fixed, forms three anchor points fixed by soft connection and hook, to solve the problem of ISOFIX top no fixed.Compared with ISOFIX fixed mode, LATCH fixed mode is more flexible and more stable.
[0003] First anchor ring exists on the seat of car and cooperates with hook, and hook is hung on first anchor ring and the tightness of hook hung on first anchor ring is adjusted by the way of manual adjustment of upper pull belt.The existing manual adjustment of hook tightness is more cumbersome to operate, and more laborious. UTILITY MODEL CONTENTS
[0004] The first purpose of the utility model is to provide a kind of safe seat base, the safety belt of the safe seat base has automatic tightening function, save time and effort.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A kind of safe seat base, comprising: base body, the base body is used to install to the seat of car;Length adjustment mechanism, the length adjustment mechanism is arranged on the base body;Safety belt, the safety belt is at least partially received in the length adjustment mechanism, at least one end of the safety belt can extend the length adjustment mechanism and is detachably connected with the seat of car;Wherein, the length adjustment mechanism is used to adjust the length of the safety belt that extends to the length adjustment mechanism outside.
[0007] As preferred, the safety belt is received in the length adjustment mechanism in winding state, and the safety belt in reel shape can rotate around first axis.
[0008] As preferred, one end of the safety belt is equipped with connecting structure, and the connecting structure is used for detachable connection with the seat of car;The safety belt includes upper pull belt.
[0009] Preferably, the length adjusting mechanism is capable of tightening the safety belt after the safety belt is connected to the car seat; the length adjusting mechanism comprises a first rotating shaft and a driving member, one end of the safety belt is wound around the first rotating shaft, and the driving member is connected to the first rotating shaft to rotate the first rotating shaft to tighten the safety belt.
[0010] Preferably, the driving member comprises a spring, the spring is sleeved outside the first rotating shaft, and one end of the spring is fixed to the first rotating shaft; two springs are arranged at two ends of the first rotating shaft respectively, and the safety belt is located between the two springs.
[0011] Preferably, the safety seat base further comprises a locking mechanism, the locking mechanism is movable relative to the length adjusting mechanism, and the locking mechanism is used for locking the length adjusting mechanism.
[0012] Preferably, the length adjusting mechanism comprises a first rotating shaft capable of rotating around the first axis; the locking mechanism comprises a ratchet and a pawl, the ratchet is sleeved on the first rotating shaft, and the pawl is movably arranged on the base body; the pawl is capable of moving to a locking position in engagement with the ratchet and an unlocking position out of engagement with the ratchet; the locking mechanism further comprises an unlocking member, the unlocking member is movably arranged on the base body, and the pawl is movable by operating the unlocking member.
[0013] Preferably, the locking mechanism further comprises an elastic reset member, the elastic reset member is arranged on the base body, the elastic reset member elastically abuts against the pawl, and the elastic reset member has a tendency to reset the pawl to the locking position; and / or the ratchet and the pawl are both provided with two, the two ratchets are both sleeved on the first rotating shaft, and the safety belt is located between the two ratchets.
[0014] Preferably, the safety seat base further comprises two interface members and a belt-shaped member, the belt-shaped member is connected between the two interface members, and the belt-shaped member is movably connected to the base body; the safety seat base further comprises a pressing member, the pressing member is movably connected to the base body and is capable of abutting against the belt-shaped member to an abutting position; and / or the belt-shaped member is provided with another length adjusting mechanism.
[0015] The second object of the utility model is to provide a safety seat, the safety seat has the automatic tightening function, the tightness of the safety belt can be automatically adjusted, and time and labor are saved.
[0016] To achieve the object, the utility model adopts the following technical scheme:
[0017] A safety seat comprises a seat cabin and the safety seat base, and the seat cabin is arranged on the safety seat base.
[0018] The utility model discloses beneficial effects of:
[0019] The safety seat base provided by the utility model comprises a base body, a length adjusting mechanism and a safety belt, the base body is used for being mounted on a car seat, the length adjusting mechanism is arranged on the base body, the safety belt is at least partially accommodated in the length adjusting mechanism, and at least one end of the safety belt can extend out of the length adjusting mechanism and be detachably connected with the car seat.
[0020] The safety seat provided by the utility model comprises a seat cabin and the safety seat base, and through use of the safety seat base, the safety belt has an automatic tightening function, the tightness can be automatically adjusted, time and labor are saved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a schematic view of the safety seat base and the car seat of the utility model;
[0022] Figure 2 It is Figure 1 It is a schematic view of the structure shown in another perspective view;
[0023] Figure 3 It is Figure 1 It is a front view of the structure shown;
[0024] Figure 4 It is Figure 3 It is a sectional view in the direction of A-A in the figure;
[0025] Figure 5 It is Figure 4 It is an enlarged view of the B part in the figure;
[0026] Figure 6 It is an explosion view of the length adjusting mechanism and the safety belt of the utility model;
[0027] Figure 7 It is an explosion view of the safety seat base and the car seat of the utility model;
[0028] Figure 8 It is Figure 7 It is a schematic view of the structure shown in another perspective view.
[0029] In the figure:
[0030] 10, safety seat base; 20, car seat; 21, bottom; 22, back; 23, first anchor ring; 24, second anchor ring;
[0031] 100, base body; 110, base portion; 120, back portion;
[0032] 200, length adjustment mechanism; 210, first rotating shaft; 220, spring; 230, ratchet; 240, pawl; 250, unlocking piece; 260, elastic reset piece; 270, housing;
[0033] 300, safety belt; 310, hook;
[0034] 400, interface piece; 500, belt piece; 600, pressure applying piece. DETAILED DESCRIPTION
[0035] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0038] In the description of the embodiments, the terms "upper", "lower", "right", "left", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0039] As Figures 1 to 8 shown, the utility model provides a kind of safety seat base 10, which can be placed on car seat 20 and realize relative fixation with car seat 20.Safety seat base 10 can also be used for safety seat, and is used as main support structure.Specifically, safety seat base 10 includes base body 100, length adjusting mechanism 200 and safety belt 300.Base body 100 is used to be installed to car seat 20, length adjusting mechanism 200 is arranged on base body 100, safety belt 300 is at least partially housed in length adjusting mechanism 200, and at least one end of safety belt 300 can extend length adjusting mechanism 200 and be detachably connected with car seat 20.It needs to be explained that safety belt 300 can be only one end to extend length adjusting mechanism 200, and both ends can also extend length adjusting mechanism 200.Length adjusting mechanism 200 is used to adjust the length of safety belt 300 extending to the outside of length adjusting mechanism 200.
[0040] Compared with the seat base in the prior art which needs user to manually operate to pull the upper pull belt, the safety seat base 10 provided by the utility model can automatically adjust the length of safety belt 300 extending to the outside of length adjusting mechanism 200 by length adjusting mechanism 200, and the length of safety belt 300 extending to length adjusting mechanism 200 increases before safety belt 300 is connected with car seat 20, so that safety belt 300 can gradually approach car seat 20 until safety belt 300 is connected with car seat 20;after safety belt 300 is connected with car seat 20, length adjusting mechanism 200 can automatically retract, so that the length of safety belt 300 extending to length adjusting mechanism 200 is shortened, thereby realizing tensioning of safety belt 300.This not only improves the stability of safety seat base 10 on car seat 20, but also saves time and effort without manually pulling safety belt 300.
[0041] Base body 100 includes base portion 110 and back portion 120, and base portion 110 and back portion 120 are connected in L shape, base portion 110 abuts to the bottom 21 of car seat 20, and back portion 120 abuts to the back portion 22 of car seat 20.In some embodiments, safety belt 300 is arranged at the top of back portion 120 of base body 100.
[0042] One end of the safety belt 300 is provided with a connecting structure for detachable connection with the car seat 20; the safety belt comprises an upper pull belt. The safety belt 300 comprises a belt portion in the form of a belt, and the connecting structure is a hook 310 provided at one end of the belt portion. The back portion 22 of the car seat 20 is provided with a first anchor ring 23, and the hook 310 can be hooked onto the first anchor ring 23, thereby achieving detachable connection of the safety belt 300 with the car seat 20. The detachable connection achieved by the hook 310 and the first anchor ring 23 is not only simple to operate and convenient to disassemble and assemble, but also ensures the stability of the connection.
[0043] Of course, in other embodiments, the safety belt 300 can only comprise a belt portion, and the end of the belt portion is tied to the first anchor ring 23, thereby achieving detachable connection of the belt portion with the first anchor ring 23. In another embodiment, the safety belt 300 can comprise a belt portion in the form of a belt and a plug member provided at one end of the belt portion, and a plug member is provided on the back portion 22 of the car seat 20, and the plug member and the plug member can be plugged together, thereby achieving detachable connection of the safety belt 300 with the car seat 20.
[0044] The safety belt 300 is stored in a wound state in the length adjustment mechanism 200, and the safety belt 300 in the form of a reel can rotate around the first axis. Specifically, the belt portion included in the safety belt 300 is stored in a wound state in the length adjustment mechanism 200, and by rotating the safety belt 300 around the first axis, the end of the safety belt 300 can gradually extend out of the length adjustment mechanism 200, and by reversing the rotation of the safety belt 300 around the first axis, the end of the safety belt 300 can gradually retract into the length adjustment mechanism 200. The power for driving the safety belt 300 to rotate around the first axis will be described in detail below.
[0045] In addition, the safety belt 300 can also be stored in a folded state in the length adjustment mechanism 200, and by applying force to one end of the safety belt 300, at least part of the safety belt 300 can be pulled out of the length adjustment mechanism 200 to adjust the length of the safety belt 300 extending out of the length adjustment mechanism 200.
[0046] The length adjustment mechanism 200 can automatically tension the safety belt 300 after the safety belt 300 is connected with the car seat 20.
[0047] In some embodiments, the length adjustment mechanism 200 comprises a first rotating shaft 210 and a driving member, one end of the safety belt 300 is wound around the first rotating shaft 210, and the driving member is connected with the first rotating shaft 210 for rotating the first rotating shaft 210 to tension the safety belt 300.
[0048] Optionally, the driving member comprises a spring 220, the spring 220 is sleeved on the first rotating shaft 210, and one end of the spring 220 is fixed to the first rotating shaft 210. When the user pulls the end of the safety belt 300, the safety belt 300 in the winding state can rotate around the first axis, so that the first rotating shaft 210 can rotate, and the rotation of the first rotating shaft 210 can wind the spring 220, so that the spring 220 is tightened to accumulate energy. After the end of the safety belt 300 is connected to the car seat 20, the user releases the safety belt 300, and the spring 220 releases energy to drive the first rotating shaft 210 to rotate reversely, so that the safety belt 300 is automatically tightened.
[0049] Optionally, two springs 220 are arranged, and the two springs 220 are arranged at two ends of the first rotating shaft 210, and the safety belt 300 is located between the two springs 220. The arrangement of the two springs 220 is beneficial to increase the power when the safety belt 300 is wound and tightened, so that the safety belt 300 can be quickly wound and tightened at a high speed.
[0050] In some parallel embodiments, the length adjusting mechanism 200 comprises an elastic member made of an elastic material, one end of the elastic member is fixed, and the other end is fixed to the safety belt 300. In the process that the end of the safety belt 300 is stretched out of the length adjusting mechanism 200, the elastic member is stretched and accumulates elastic potential energy, and when the user releases the safety belt 300, the elastic member releases energy to automatically tighten the safety belt 300.
[0051] The length adjusting mechanism 200 further comprises a housing 270, the first rotating shaft 210 and the spring 220 are arranged in the housing 270, and the housing 270 is fixed to the backrest of the car seat 20.
[0052] In order to avoid the situation that the safety belt 300 is accidentally loosened, the safety seat base 10 further comprises a locking mechanism, the locking mechanism is movable relative to the length adjusting mechanism 200 and is used for locking the length adjusting mechanism 200.
[0053] In some embodiments, the locking mechanism comprises a ratchet wheel 230 and a pawl 240, the ratchet wheel 230 and the pawl 240 are arranged in the housing 270, the ratchet wheel 230 is sleeved on the first rotating shaft 210, the pawl 240 is movably arranged on the base body 100, and the pawl 240 can be moved to a locking position in engagement with the ratchet wheel 230 and an unlocking position disengaged from the ratchet wheel 230. When the pawl 240 is engaged with the ratchet wheel 230, the ratchet wheel 230 cannot rotate, so that the first rotating shaft 210 connected with the ratchet wheel 230 also cannot rotate, thereby the safety belt 300 also cannot be elongated or shortened.
[0054] The user can directly apply force to drive the pawl 240 to move. Of course, in order to facilitate the user to apply force, the locking mechanism further comprises an unlocking member 250 movably arranged on the base body 100, and the pawl 240 can be moved by operating the unlocking member 250. In some embodiments, the shell 270 is provided with a mounting hole, and the unlocking member 250 is an unlocking button which is telescopically arranged in the mounting hole, and the pawl 240 can be moved or deflected by pressing the unlocking button.
[0055] In some embodiments, two ratchets 230 and two pawls 240 are provided, the two ratchets 230 are spaced and sleeved on the first rotating shaft 210, and the safety belt 300 is located between the two ratchets 230.
[0056] In order to facilitate the installation of the two pawls 240, in the present embodiment, the two pawls 240 are connected by a connecting plate to form an integrated body. The two pawls 240 and the connecting plate can be an integrally formed member or a combined member connected by welding, bonding or the like.
[0057] In order to enable the pawl 240 to automatically reset, continuing to refer to Figure 5 and Figure 6 , the locking mechanism further comprises an elastic reset member 260 arranged on the base body 100, the elastic reset member 260 elastically abuts against the pawl 240 and has a tendency to reset the pawl 240 to the locking position.
[0058] In some embodiments, the elastic reset member 260 is a curved spring structure, the low end of the spring structure is fixed on the shell 270, and the top end of the spring structure abuts against the bottom surface of the connecting plate. Optionally, the spring structure has a plurality of arc-shaped protrusions.
[0059] Continuing to refer to Figure 7 and Figure 8 , the safety seat base 10 further comprises two interface members 400 and a belt member 500, the belt member 500 is connected between the two interface members 400, and the belt member 500 is movably connected to the base body 100. Two second anchor rings 24 are arranged between the back 22 and the bottom 21 of the automobile seat 20, and the two interface members 400 are respectively used for clamping in the two second anchor rings 24 to form a three-point fixing with the safety belt 300, thereby improving the stability of the safety seat base 10 installed on the automobile seat 20. Optionally, the belt member 500 is a polypropylene belt, and the two interface members 400 are respectively a left Latch interface and a right Latch interface.
[0060] Optionally, the length adjusting mechanism 200 can also be arranged on the belt member 500 to adjust the length of the belt member 500.
[0061] In order to lock the belt 500, in some embodiments, the safety seat base 10 further comprises a pressing member 600, which is movably connected to the base body 100 and can be pressed against the belt 500.
[0062] In some embodiments, the pressing member 600 is a curved arm structure, one end of which is rotatably connected to the base part 110 through a second rotating shaft, the base part 110 is provided with a boss structure, and recess structures are formed on both sides of the boss structure, the belt 500 is not divided and placed on the boss structure, and part of the belt 500 is placed in the recess structure, and the arm structure can be rotated and pressed into the recess structure to press the belt 500.
[0063] The installation process of the safety seat base 10 is as follows:
[0064] The safety belt 300 is fixed: first, the unlocking button is operated, so that the pawl 240 is disengaged from the ratchet wheel 230; then, the hook 310 on the safety belt 300 is pulled, the safety belt 300 is gradually pulled out from the shell 270 of the length adjusting mechanism 200, until the hook 310 is hooked to the first anchor ring 23 of the back part 22, in this process, the clockwork 220 is wound and tightened; then, the unlocking button is released, under the reset action of the clockwork 220, the safety belt 300 is automatically wound back to the tightening state; finally, under the driving of the elastic reset member 260, the pawl 240 is reset to the locking position engaged with the ratchet wheel 230, thus the function of automatic winding and locking of the safety belt 300 is completed.
[0065] The left and right are fixed: the two interface members 400 are respectively clamped into the second anchor ring 24; the pressing member 600 is rotated downward to press against the belt 500, thus the installation of the safety seat base 10 and the automobile seat 20 is completed.
[0066] The utility model also provides a safety seat, the safety seat includes above-mentioned safety seat base 10. The safety seat passes through using above-mentioned safety seat base 10, makes the safety belt 300 have automatic tightening function, and the tightness can be automatically adjusted, saves time and labor. In addition to the safety seat base 10, the safety seat further includes a cabin, which is rotatably installed on the base part 110 of the safety seat base 10.
[0067] Obviously, the above embodiments of the utility model are only for clear illustration of the utility model, and are not limited to the implementation mode of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A safety seat base, characterized by, The safety seat base comprises: a base body for being mounted on a car seat; a length adjusting mechanism arranged on the base body; a safety belt at least partially received in the length adjusting mechanism, at least one end of the safety belt being capable of extending out of the length adjusting mechanism and detachably connected with the car seat; wherein the length adjusting mechanism is used for adjusting the length of the safety belt extending out of the length adjusting mechanism.
2. The safety seat base of claim 1, wherein, The safety belt is received in the length adjusting mechanism in a winding state, and the safety belt in a winding disc shape is capable of rotating about a first axis.
3. The safety seat base of claim 1, wherein, One end of the safety belt is provided with a connecting structure for being detachably connected with the car seat. The safety belt comprises an upper pulling belt.
4. The safety seat base of claim 2, wherein, The length adjusting mechanism is capable of tensioning the safety belt after the safety belt is connected with the car seat. The length adjusting mechanism comprises a first rotating shaft and a driving member, one end of the safety belt is wound around the first rotating shaft, and the driving member is connected with the first rotating shaft for rotating the first rotating shaft to tension the safety belt.
5. The safety seat base of claim 4, wherein, The driving member comprises a spring, the spring is sleeved outside the first rotating shaft, and one end of the spring is fixed with the first rotating shaft. The spring is provided with two, and the two springs are respectively arranged at two ends of the first rotating shaft, and the safety belt is located between the two springs.
6. The safety seat base of claim 2, wherein, The safety seat base further comprises a locking mechanism, the locking mechanism is movable relative to the length adjusting mechanism, and is used for locking the length adjusting mechanism.
7. The safety seat base of claim 6, wherein, The length adjusting mechanism comprises a first rotating shaft capable of rotating about the first axis. The locking mechanism comprises a ratchet and a pawl, the ratchet is sleeved on the first rotating shaft, and the pawl is movably arranged on the base body, the pawl is capable of moving to a locking position in engagement with the ratchet and an unlocking position out of engagement with the ratchet. The locking mechanism further comprises an unlocking member, the unlocking member is movably arranged on the base body, and the pawl is movable by operating the unlocking member.
8. The safety seat base of claim 7, wherein, The locking mechanism further comprises an elastic reset member, the elastic reset member is arranged on the base body, the elastic reset member elastically abuts against the pawl, and has a tendency to reset the pawl to the locking position; and / or The ratchet and the pawl are both provided with two, the two ratchets are both sleeved on the first rotating shaft, and the safety belt is located between the two ratchets.
9. The safety seat base of claim 1, wherein, The safety seat base further comprises two interface members and a belt member, the belt member is connected between the two interface members, and the belt member is movably connected on the base body. The safety seat base further comprises a pressing member, the pressing member is movably connected to the base body and is capable of abutting against the belt member to an abutting position; and / or The belt member is provided with another length adjusting mechanism.
10. A safety seat, characterized by The safety seat base is arranged on the safety seat base.