Upper drawstring system of safety seat

Abstract

The utility model relates to an upper drawstring system of a safety seat, which at least comprises a seat, a turntable and an upper drawstring extending out of the upper end of the seat, and the first end of the upper drawstring is fixed on the turntable and penetrates through the seat; and the second end of the upper drawstring is provided with a locking device with a warning part, and the locking device is used for being connected with an in-vehicle interface. Compared with the prior art, the utility model has the beneficial effects that the upper drawstring is fixed on the turntable and penetrates through the seat, so that when the inclination angle of the seat is adjusted, the upper drawstring is always in a tensioned state, and the stable action of the upper drawstring is ensured; the two alarm devices are arranged, only when the two alarm devices are activated, the alarm devices can not give an alarm, it is guaranteed that the upper pull belt and the safety belt are both installed in place, and the safety of the safety seat is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of child safety seats, in particular to an upper pull belt system of a safety seat. Background Art

[0002] Child seats for mounting on motor vehicle seats are well known in the prior art. It is also known that such child seats can be anchored on or in the motor vehicle, for example by means of upper anchoring means (for example top tethers) and lower anchoring means (for example Isofix). There is a risk that the anchoring means (for example top tethers) are not mounted correctly, for example not fastened or not sufficiently tensioned. This means an increased risk of injury in the event of an accident.

[0003] The prior art has provided an upper strap system for manually adjusting the top strap, but the upper strap system in the prior art has certain defects during adjustment. For example, when the seat is installed in the forward direction, the upper strap system is adjusted to a just tightened position. However, during the ride, as the child's state changes, it is sometimes necessary to adjust the seat's tilt angle so that the child can sleep or play in the seat. When the seat's tilt angle is adjusted, the length of the upper strap remains unchanged, but the position of one end connected to the seat changes, which may cause the upper strap to fail to be tightened, posing a safety hazard. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides an upper pull belt system of a safety seat.

[0005] The above-mentioned problem of the utility model is solved by the following technical solutions:

[0006] A top strap system for a safety seat comprises at least a seat and a turntable, and a top strap extending from the upper end of the seat, wherein the first end of the top strap is fixed to the turntable and passes through the seat; the second end of the top strap is provided with a locker with a warning part for connecting with an interface in the vehicle.

[0007] By adopting the above technical solution, when adjusting the seat tilt angle, since the first end of the upper strap is fixed to the turntable, the length of the upper strap remains unchanged. However, since the middle part of the upper strap passes through the seat and extends out from the seat, when the seat is tilted, the upper strap part in the seat will also be tilted. Therefore, the upper strap is still in a tensioned state and is always stably connected to the seat, ensuring the tensioning effect of the upper strap.

[0008] The above technical solution is further configured as follows: the seat back is provided with a path groove capable of accommodating the upper pull strap to be embedded, and a through hole is opened on the upper end groove wall of the path groove so that the second end of the upper pull strap can pass through the through hole.

[0009] By adopting the above technical solution, no matter at what angle the seat is, the middle part of the upper pull belt is always in close contact with the bottom of the path groove, that is, it is always in close contact with the seat, ensuring that the position of the upper pull belt is consistent with the position of the seat, maintaining a stable connection between the seat and the car seat.

[0010] The above technical solution is further configured as follows: a mounting portion for connecting the first end of the upper pull belt is provided on the turntable, and the first end of the upper pull belt is detachably connected to the mounting portion.

[0011] The above technical solution is further configured as follows: the installation portion is provided with at least one drawstring hole, the first end of the upper drawstring passes through the drawstring hole, and is limited between the drawstring hole by a limiting component.

[0012] The above technical solution is further configured as follows: the installation portion is further provided with a limiting hole, and the limiting hole and the drawstring hole are arranged in parallel.

[0013] By adopting the above technical solution, the first end of the upper strap is arranged in a lying S shape at the installation position, which ensures the fixation of the upper strap and the installation position, and does not affect the fixation between the strap and the turntable when the seat is rotated or the angle is adjusted.

[0014] The above technical solution is further configured as follows: the upper end of the limiting hole is connected to a limiting groove, and the limiting component is located in the limiting groove.

[0015] The above technical solution is further configured as follows: it also includes a first alarm device, which can contact the upper pull belt to determine the state of the upper pull belt;

[0016] When the upper pull belt is tightened, the first alarm device is activated and no alarm is given;

[0017] When the upper pull belt is not tightened, the first alarm device alarms.

[0018] By adopting the above technical solution, a first alarm device is provided to further give a sound alarm for the installation status of the upper pull belt, thereby improving the safety of the safety seat.

[0019] The above technical solution is further configured as follows: a first elastic sheet is provided on the seat, and when the upper pull belt is tightened, the first elastic sheet is pressed toward one side of the first alarm device to activate the first alarm device.

[0020] By adopting the above technical solution, a spring piece is provided to activate the alarm device so that the activation state remains stable.

[0021] The above technical solution is further configured as follows: it also includes a second alarm device, which is arranged on the seat and is used to alarm the status of the safety belt of the safety seat.

[0022] The above technical solution is further configured as follows: when the second alarm device is activated, the circuit of the part is connected;

[0023] When the first alarm device is activated, the circuit at that location is disconnected.

[0024] By adopting the above technical solution, the circuit can be connected only when both alarm devices are activated, and the alarm device does not alarm, thereby ensuring that the safety belt and the upper pull belt are installed in place and ensuring the safety performance of the safety seat.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] Fix the upper pull belt on the turntable and pass it through the seat setting, so that when the seat is adjusted to a tilt angle, the upper pull belt is always in a tensioned state to ensure the stability of the upper pull belt;

[0027] Two alarm devices are set up. The alarm device will not sound only when both alarm devices are activated, ensuring that the upper pull belt and the safety belt are properly installed to ensure the safety of the safety seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] Figure 2 This is a schematic diagram of the installation position of the upper pull belt on the seat.

[0030] Figure 3 It is a structural schematic diagram of the installation part on the turntable.

[0031] Figure 4 Schematic diagram of the connection structure between the upper pull belt and the turntable.

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection position between the upper pull belt and the turntable.

[0033] Figure 6 This is a schematic diagram of the position structure of the mounting slot on the seat.

[0034] Figure 7 This is a schematic diagram of the position of the second alarm device on the seat.

[0035] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part A in the middle.

[0036] The accompanying drawings are marked with: 100, base;

[0037] 200, seat; 201, path groove; 202, perforation; 210, top holding part; 203, mounting groove;

[0038] 300, pull-up strap;

[0039] 400, lock; 401, warning window;

[0040] 500, turntable; 501, strap hole; 502, limit hole; 203, limit slot; 204, receiving slot;

[0041] 600, limit components;

[0042] 700, the first shrapnel;

[0043] 800, first alarm device;

[0044] 900, Activate component;

[0045] 1. The second shrapnel. DETAILED DESCRIPTION

[0046] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0047] like Figure 1-8 As shown, the following embodiments disclose a top strap system for a child safety seat.

[0048] Example 1

[0049] A top strap system for a child safety seat comprises at least a seat 200 and a turntable 500, and a top strap 300 extending from the upper end of the seat 200, wherein a first end of the top strap 300 is fixed to the turntable 500 and passes through the seat 200; a second end of the top strap 300 is provided with a locker 400 with a warning portion for connecting to an interface inside the vehicle.

[0050] Specific reference Figure 1 As shown, it includes a base 100 fixed on the car seat, a turntable 500 is installed on the base 100 and connected to the seat 200, the turntable 500 rotates relative to the base 100, and drives the seat 200 to rotate; the installation structure between the base 100, the turntable 500, and the seat 200 is consistent with the safety seat in the prior art, and will not be repeated here;

[0051] In this embodiment, the first end (lower end) of the upper pull belt 300 is connected to the turntable 500, and the second end (upper end) passes through the seat 200 and is connected to a locker 400, which can be connected to the car.

[0052] In this embodiment, the warning portion is a warning window 401 provided on the lock 400 , and at least two warning colors are provided in the lock 400 and displayed in the warning window 401 .

[0053] Regarding the structure of the lock 400, the Chinese utility model patent with authorization announcement number CN208915011U discloses an upper pull strap 300, which discloses the specific structure of the lock hook. The lock hook can adjust the length of the upper pull strap 300 to put the upper pull strap 300 in a tensioned state. At the same time, the lock hook also has a warning portion.

[0054] The warning structure of this embodiment is consistent with the warning structure in the prior art. The two warning colors represent safety warning and danger warning respectively. When the upper pull strap 300 is in a tensioned position, the color representing the safety warning is displayed in the warning window 401; when the upper pull strap 300 is in a relaxed position, the color representing the danger warning is displayed in the warning window 401.

[0055] The locker 400 in this embodiment is similar to the structure and can adjust the length of the upper pull strap 300; in other embodiments, the length can also be adjusted by structures such as buckles, and the locker 400 is only used to connect to the car seat.

[0056] Based on the above arrangement, when the present embodiment is in use, after the seat 200 is installed, the upper strap 300 is tightened and then the lock 400 is connected to the car seat. At this time, when the tilt angle of the seat 200 is adjusted, since the first end of the upper strap 300 is fixed to the turntable 500, the length of the upper strap 300 remains unchanged. However, since the middle part of the upper strap 300 passes through the seat 200 and extends from the seat 200, when the seat 200 is tilted, the part of the upper strap 300 in the seat 200 will also be tilted. Therefore, the upper strap 300 is still in a tensioned state and is always stably connected to the seat 200, thereby ensuring the tensioning effect of the upper strap 300.

[0057] The upper strap 300 system in this embodiment is not only applicable to the safety seat 200 installed in the forward direction, but also to the safety seat 200 installed in the reverse direction. When the seat 200 is reversed, the upper strap 300 is first tensioned and fixed. When the child sits on the seat 200 and the tilt angle of the seat 200 is adjusted, the length of the upper strap 300 remains unchanged. At the same time, since the seat 200 limits the path of the upper strap 300, the upper strap 300 tilts together with the back of the seat 200, thereby ensuring that the upper strap 300 can still be in a tensioned state.

[0058] It should be noted that when the seat 200 is in the reverse installation position, the upper pull belt 300 extends from the side of the seat 200 to the front and is fixed to the car seat.

[0059] In this embodiment, the back of the seat 200 is provided with a path groove 201 capable of accommodating the upper pull belt 300 to be embedded, and a through hole 202 is opened on the upper end groove wall of the path groove 201 so that the second end of the upper pull belt 300 can pass through the through hole 202.

[0060] Based on the above arrangement, no matter at what angle the seat 200 is, the middle portion of the upper strap 300 is always in close contact with the bottom of the path groove 201, that is, it is always in close contact with the seat 200, thereby ensuring that the position of the upper strap 300 is consistent with the position of the seat 200, thereby maintaining a stable connection between the seat 200 and the car seat.

[0061] Preferably, in order to reduce the contact between the upper pull belt 300 and the seat 200 and reduce the friction, in this embodiment, a supporting portion 210 is protruding from the bottom of the path groove 201.

[0062] Preferably, refer to Figure 2 As shown, the supporting part 210 is arranged at the upper part of the path groove 201, and the part at the base of the upper pull belt 300 is arranged as an arc surface; when the upper pull belt 300 slides during the adjustment process, only sliding friction is generated between the supporting part 210, and the friction force is small, thereby reducing the wear of the upper pull belt 300 and extending its service life.

[0063] In this embodiment, the specific connection method between the turntable 500 and the upper pull belt 300 is set as follows: the turntable 500 is provided with a mounting portion for connecting the first end of the upper pull belt 300, and the first end of the upper pull belt 300 is detachably connected to the mounting portion.

[0064] The specific implementation is as follows: the fixing portion is provided with at least one drawstring hole 501 , the first end of the upper drawstring 300 passes through the drawstring hole 501 , and is limited by a limiting component 600 between the drawstring hole 501 .

[0065] Preferably, in this embodiment, the limiting component 600 is a limiting plate, and the limiting plate can pass through the drawstring hole 501 and form a limit with the end surface of the drawstring hole 501.

[0066] Specific reference Figure 3 and Figure 4As shown, the drawstring hole 501 can accommodate the upper drawstring 300 passing through, and at the same time, the limiting component 600 has at least one state position that can pass through the drawstring hole 501; the first end of the upper drawstring 300 is fixed to the limiting component 600, and the limiting component 600 brings the first end of the upper drawstring 300 from the first side of the drawstring hole 501 to the second side, changing the state of the limiting component 600 so that it cannot pass through the drawstring hole 501, thereby limiting the limiting component 600 on the second side of the drawstring hole 501, and thus, the first end of the upper drawstring 300 is also limited in the drawstring hole 501.

[0067] In this embodiment, the limiting component 600 is a thin sheet that can pass through the drawstring hole 501 ; when the limiting component 600 is in a horizontal position or an inclined position, it cannot pass through the drawstring hole 501 , thus forming a limit.

[0068] Preferably, in this embodiment, the limiting component 600 is configured as an I-shaped piece, and the first end of the upper pull belt 300 is configured to be annularly wound around the I-shaped piece.

[0069] In this embodiment, in order to ensure the installation position of the upper drawstring 300 , the installation position is further provided with a limiting hole 502 , and the limiting hole 502 and the drawstring hole 501 are arranged in parallel.

[0070] Specific reference Figure 3 to Figure 5 As shown, the first end of the upper drawstring 300 passes through the limiting hole 502 from top to bottom, and then passes through the drawstring hole 501 from below to above, and the limiting component 600 is located above the drawstring hole 501.

[0071] In the above arrangement, the first end of the upper strap 300 is arranged in a lying S shape at the installation location, ensuring the fixation of the upper strap 300 and the installation location. When the seat 200 is rotated or the angle is adjusted, the fixation between the strap and the turntable 500 is not affected.

[0072] In this embodiment, the installation position of the limiting component 600 is also limited. The specific implementation is as follows: the upper end of the limiting hole 502 is connected to a limiting groove 203 , and the limiting component 600 is located in the limiting groove 203 .

[0073] Specific reference Figure 5 As shown, the limiting groove 203 is recessed on the upper end surface of the rotating disk 500 , a drawstring hole 501 is provided at the bottom of the limiting groove 203 , and the limiting groove 203 and the drawstring hole 501 are combined to axially penetrate the rotating disk 500 .

[0074] Example 2

[0075] This embodiment is an improvement on the first embodiment, the purpose of which is to increase the function of the upper pull belt, and its specific implementation method is as follows:

[0076] It also includes a first alarm device 800, which can contact the upper pull belt 300 to determine the state of the upper pull belt 300;

[0077] When the upper pull belt 300 is tightened, the first alarm device 800 is activated without alarming;

[0078] When the upper pull belt 300 is not tightened, the first alarm device 800 sounds an alarm.

[0079] In the prior art, in order to increase the functions of the safety seat 200, an electric control mechanism is usually provided in the safety seat 200 to remind whether the seat 200 is installed in place, etc. In this embodiment, the first alarm device 800 is connected to the circuit in the seat. When the upper pull belt 300 is not installed in place, that is, not in close contact with the alarm device 800, the upper pull belt 300 is loose, and the circuit of the safety seat 200 alarms.

[0080] When the upper pull belt 300 is installed in place and in the tensioned position, the upper pull belt 300 can be close to the position of the first alarm device 800, the first alarm device 800 is activated, and the circuit of the seat 200 does not alarm.

[0081] In this embodiment, refer to Figure 6 As shown, a mounting groove 203 is provided in the middle of the top of the seat 200 for mounting the first alarm device 800 . The first alarm device 800 is located below the through hole 202 on the mounting path of the upper pull belt 300 .

[0082] Preferably, in this embodiment, the second alarm device 800 is a micro switch, and one side of the contact piece on the micro switch faces the upper pull belt 300. When the upper pull belt 300 is tightened, it is close to the upper edge of the installation groove 203, thereby squeezing the micro switch and activating it.

[0083] Preferably, in order to ensure stable pressing of the first alarm device 800, in this embodiment, a first elastic sheet 700 is provided on the seat 200, and when the upper pull belt 300 is tightened, the first elastic sheet 700 is squeezed toward one side of the first alarm device 800 to activate the first alarm device 800.

[0084] Specific reference Figure 6 As shown, the arrangement of the first elastic sheet 700 is consistent with the state of the upper pull belt 300 at this position, and both are inclined;

[0085] One end of the first spring piece 700 is fixed to the seat 200, covering the mounting groove 203, and the first alarm device 800 is located in the mounting groove 203; when the upper pull strap 300 is tightened, the upper pull strap 300 is tightly attached to the first spring piece 700, so that the first spring piece 700 is pressed against the mounting groove 203, squeezing the first alarm device 800, activating it and keeping it in the activated state for a long time.

[0086] Example 3

[0087] This embodiment is an improvement made on the basis of the embodiment 2, and its purpose is to improve the alarm system of the safety seat. The specific implementation method is as follows:

[0088] It also includes a second alarm device, which is arranged on the seat 200 and is used to alarm the status of the safety seat's own seat belt.

[0089] Specific reference Figure 7 As shown, the second alarm device is arranged on the seat 200. In a conventional safety seat, the connecting belt of the five-point safety belt of the safety seat is arranged on the seat 200, and the connector of the safety belt is inserted into the interface on the connecting belt to tighten the connecting belt;

[0090] Therefore, in this embodiment, the second alarm device is arranged at the part of the connecting belt, and when the connecting belt is tightened, the second alarm device can be activated, so that the circuit at the part of the second alarm device is connected.

[0091] Preferably, in this embodiment, the second alarm device has a similar structure to the first alarm device, including a second spring piece 800, and an activation component 900 is provided on the connecting belt. When the connecting belt is tightened, the activation component 900 is also tightened, and the second spring piece 1 is squeezed, and the second spring piece 1 is pressed downward to activate the second alarm device.

[0092] The second alarm device is also a micro switch.

[0093] Specific reference Figure 7 As shown, a receiving groove 204 is provided on the seat 200, the micro switch is located in the receiving groove 204, and the contact piece is tilted upward; one end of the second elastic sheet 1 is fixed to the side of the receiving groove 204, and the other end extends toward one side of the micro switch and is located above the contact piece; at the same time, the activation component 900 is located on the micro switch and the second elastic sheet.

[0094] Preferably, the activation component 900 in this embodiment is also a thin sheet.

[0095] When the connection belt is tightened by the safety belt, the activation component 900 is pressed against the seat 200, exerting pressure on the second elastic sheet 1, and pressing the contact piece on the micro switch downward through the second elastic sheet 1, thereby activating the micro switch.

[0096] In addition, in order to ensure the alarm effect and prevent multiple alarms of the alarm system, in this embodiment, when the second alarm device is activated, the circuit of the part is connected;

[0097] When the first alarm device is activated, the circuit at that location is disconnected.

[0098] That is, in this embodiment, the activation state of the first alarm device and the activation state of the second alarm device are set inversely.

[0099] In specific use, when the second alarm device is activated, that is, the passenger sits on the seat and tightens the five-point safety belt, at this time, due to the action of the activation component 900, the second alarm device is activated, that is, the circuit at this position is connected;

[0100] If the upper pull belt is not tightened, the first alarm device is in an inactive state, and the circuit of the part is connected. At this time, the circuit of the alarm system is connected, and an alarm is sounded;

[0101] If the upper pull belt is tightened, the first alarm device is activated and the circuit of the part is disconnected. At this time, the circuit of the alarm system is disconnected and no alarm is sounded;

[0102] When the passenger does not sit on the seat, the second alarm device is not activated. At this time, the circuit of the alarm system is in a disconnected state and the alarm system does not alarm.

[0103] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pull belt system for a safety seat, characterized in that: The vehicle comprises at least a seat (200) and a turntable (500), and an upper pull belt (300) extending from the upper end of the seat (200), wherein the first end of the upper pull belt (300) is fixed on the turntable (500) and passes through the seat (200); and the second end of the upper pull belt (300) is provided with a locker (400) with a warning part for connecting to an interface inside the vehicle.

2. The upper strap system of the safety seat according to claim 1, characterized in that: The back of the seat (200) is provided with a path groove (201) capable of accommodating the upper pull belt (300) to be embedded, and a through hole (202) is opened on the upper end groove wall of the path groove (201) so that the second end of the upper pull belt (300) can pass through the through hole (202).

3. The upper strap system of the safety seat according to claim 1, characterized in that: The rotating disk (500) is provided with a mounting portion for connecting the first end of the upper pull belt (300), and the first end of the upper pull belt (300) is detachably connected to the mounting portion.

4. The upper strap system of the safety seat according to claim 3, characterized in that: The installation portion is provided with at least one drawstring hole (501), and the first end of the upper drawstring (300) passes through the drawstring hole (501), and is limited between the drawstring hole (501) by a limiting component (600).

5. The upper strap system of the safety seat according to claim 4, characterized in that: The installation portion is also provided with a limiting hole (502), and the limiting hole (502) and the drawstring hole (501) are arranged in parallel.

6. The upper strap system of the safety seat according to claim 5, characterized in that: The upper end of the limiting hole (502) is connected to a limiting groove (203), and the limiting component (600) is located in the limiting groove (203).

7. The upper strap system of the safety seat according to claim 1, characterized in that: It also includes a first alarm device (800), which can contact the upper pull belt (300) to determine the state of the upper pull belt (300); When the upper pull belt (300) is tightened, the first alarm device (800) is activated and no alarm is sounded; When the upper pull belt (300) is not tightened, the first alarm device (800) sounds an alarm.

8. The upper strap system of the safety seat according to claim 7, characterized in that: The seat (200) is provided with a first elastic sheet (700), and when the upper pull belt (300) is tightened, the first elastic sheet (700) is pressed toward one side of the first alarm device (800), thereby activating the first alarm device (800).

9. The upper strap system of the safety seat according to claim 8, characterized in that: It also includes a second alarm device, which is arranged on the seat (200) and is used to alarm the status of the safety belt of the safety seat.

10. The upper strap system of the safety seat according to claim 9, characterized in that: When the second alarm device is activated, the circuit at the location is connected; When the first alarm device is activated, the circuit at that location is disconnected.

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