Safety seats

Abstract

The present invention relates to a safety seat, comprising: a seat body (1); a safety belt (2), which is arranged on the seat body (1) and is used to restrain an occupant sitting on the seat body (1); and a pressure detection device (3), which is arranged on the seat body (1) and is used to detect the pressure transmitted to the pressure detection device (3) when the safety belt (2) is tightened. The present invention can detect the pressure transmitted to the pressure detection device by the safety belt at any time by arranging the pressure detection device, so as to more accurately judge whether the safety belt is tightened in place, prevent misjudgment, and improve the safety of the occupants; moreover, the pressure detection device is installed on the seat body, which is easy to install and has good stability, which is conducive to reducing the influence of other components on the pressure detection device, improving the accuracy of pressure detection, and providing a more accurate judgment basis for the safe use of the safety belt.

Description

Technical Field

[0001] The present invention relates to the technical field of safety seats, and in particular to a safety seat. Background Art

[0002] At present, according to national safety standards, child safety seats on the market generally require the use of five-point safety belts to tighten and restrain child passengers. When using, there is no reliable basis for judging whether the safety belt is tightened in place, so users can only rely on experience and feeling to judge, and try to tighten the safety belt to restrain the child passenger. However, if the safety belt is pulled too tight, it will make the child passenger feel uncomfortable, and in serious cases, it will cause harm to the child passenger; and if the safety belt is not tightened in place, it will make the user anxious and worried that the safety belt cannot protect the child passenger well, which will bring a greater psychological burden to the parents of the baby, and will also threaten the safety of the child in the car. Summary of the invention

[0003] The purpose of the present invention is to provide a safety seat, which can detect the pressure transmitted by the safety belt to the pressure detection device at any time, so as to more accurately judge whether the safety belt is tightened in place, thereby improving the safety of passengers.

[0004] To achieve the above object, the present invention provides a safety seat, comprising:

[0005] Seat body;

[0006] A seat belt, provided on the seat body, for restraining an occupant sitting on the seat body; and

[0007] The pressure detection device is arranged on the seat body and is used to detect the pressure transmitted to the pressure detection device when the safety belt is tightened.

[0008] Optionally, the pressure detection device is installed on the back of the seat body, the seat belt passes around the back of the seat body, the pressure detection device is located on the side of the seat belt close to the seat body and is in direct contact with the seat belt, and when the seat belt is tightened, the pressure detection device is squeezed to transfer pressure to the pressure detection device.

[0009] Optionally, the safety seat further comprises an intermediate piece, which is arranged between the pressure detection device and the safety belt, and is used to transmit pressure to the pressure detection device when the safety belt is tightened.

[0010] Optionally, the intermediate piece is arranged on the safety belt, and the intermediate piece moves with the safety belt when the safety belt is tightened, until it contacts the pressure detection device and transmits the tensioning force exerted on the safety belt to the pressure detection device.

[0011] Optionally, the middle piece includes a Japanese-style buckle.

[0012] Optionally, a limiting structure is provided on the back of the seat body, and the limiting structure is used to limit the movement path of the middle piece and guide the movement of the middle piece.

[0013] Optionally, the limiting structure includes a rib extending from the back side of the seat body in a direction away from the seat body, and the intermediate piece is clamped on the rib and moves along the extending direction of the rib.

[0014] Optionally, a first limiting groove is provided on the back side of the seat body, and the pressure detection device is installed in the first limiting groove.

[0015] Optionally, the safety seat further comprises a protective cover, and the pressure detection device is arranged inside the protective cover.

[0016] Optionally, the pressure detection device includes a pressure sensor.

[0017] Optionally, the safety seat also includes a display device, which is connected to the pressure detection device signal, and the display device is used to display the pressure detected by the pressure detection device, and / or the display device is used to display a prompt message that can convey that the pressure has reached a preset value when the pressure detected by the pressure detection device reaches a preset value.

[0018] Optionally, the safety seat further comprises a connecting line, and the connecting line is used for signal connection between the display device and the pressure detection device.

[0019] Optionally, the seat body is provided with a second limiting groove, and the connecting line is at least partially received in the second limiting groove.

[0020] Optionally, the display device includes a circuit board and a display, the circuit board is connected to the pressure detection device signal, and the circuit board is used to convert the pressure signal detected by the pressure detection device into information displayed on the display.

[0021] Optionally, the display device is arranged at the front part of the seat body.

[0022] Optionally, the safety seat further comprises an adjusting device for adjusting the tightness of the safety belt and an outer cover for mounting the adjusting device, and the display device is arranged adjacent to the adjusting device and mounted on the outer cover.

[0023] Optionally, the safety seat further comprises a speaker, which is connected to the pressure detection device signal, and is used to play the pressure detected by the pressure detection device or to play a prompt message that the pressure has reached a preset value when the pressure detected by the pressure detection device reaches a preset value.

[0024] Optionally, the safety belt comprises a five-point safety belt.

[0025] Based on the above technical scheme, the present invention can detect the pressure transmitted from the seat belt to the pressure detection device at any time by setting a pressure detection device, so as to more accurately judge whether the seat belt is tightened in place, prevent misjudgment, and improve the safety of passengers; moreover, the pressure detection device is installed on the seat body, which is easy to install and has good stability, which is conducive to reducing the influence of other components on the pressure detection device and improving the accuracy of pressure detection, thereby providing a more accurate judgment basis for the safe use of seat belts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 The figure is a schematic structural diagram of the front side of a safety seat according to an embodiment of the present invention.

[0028] Figure 2 The figure is a schematic structural diagram of the back side of a safety seat according to an embodiment of the present invention.

[0029] Figure 3 for Figure 2 A side view of part of the structure in the embodiment.

[0030] Figure 4 It is a structural schematic diagram of the back side of another embodiment of the safety seat of the present invention.

[0031] Figure 5 for Figure 4 A partial structural diagram of an embodiment.

[0032] Figure 6 for Figure 5 Exploded diagram.

[0033] Figure 7 for Figure 4 A schematic structural diagram of a pressure detection device in an embodiment.

[0034] Figure 8 for Figure 4 Schematic diagram of the coordination structure between the pressure detection device and the middleware in the embodiment.

[0035] Fig. 9 for Figure 4 A schematic structural diagram of the rib plate and the first limiting groove in the embodiment.

[0036] Fig.10 for Figure 4 A schematic diagram of the structure of the second limiting groove and the third limiting groove in the embodiment.

[0037] In the figure:

[0038] 1. Seat body; 2. Safety belt; 3. Pressure detection device; 4. Middle piece; 5. Rib; 6. Display device; 61. Display; 62. Circuit board; 63. Battery; 7. Connecting wire; 8. Regulator; 9. Adjustment button; 10. Outer cover; 11. Decorative cover; 12. First limit slot; 13. Second limit slot; 14. Third limit slot; 15. Partition. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0041] refer to Figure 1 to Figure 3 As shown, in one embodiment of the safety seat provided by the present invention, the safety seat comprises a seat body 1, a safety belt 2 and a pressure detection device 3, wherein the safety belt 2 is arranged on the seat body 1, and is used to restrain the occupant sitting on the seat body 1, and the pressure detection device 3 is arranged on the seat body 1, and is used to detect the pressure transmitted to the pressure detection device 3 by the safety belt 2 when the safety belt 2 is tightened. The pressure transmitted to the pressure detection device 3 is positively correlated with the tension applied to the safety belt 2, and the greater the tension applied to the safety belt 2, the greater the pressure transmitted to the pressure detection device 3, and therefore, according to the pressure detected by the pressure detection device 3, it can be determined whether the safety belt 2 is tightened.

[0042] By providing the pressure detection device 3, the pressure transmitted from the seat belt 2 to the pressure detection device 3 can be detected at any time, so as to more accurately judge whether the seat belt 2 is properly tightened, prevent misjudgment, and improve the safety of passengers; moreover, the pressure detection device 3 is installed on the seat body 1, which is easy to install and has good stability, which is conducive to reducing the influence of other components on the pressure detection device 3 and improving the accuracy of pressure detection, thereby providing a more accurate judgment basis for the safe use of the seat belt 2 and improving the safety of use.

[0043] There are many options for the specific installation position of the pressure detection device 3 on the seat body 1.

[0044] In such Figure 2 and Figure 3 In the embodiment shown, the pressure detection device 3 is installed on the back of the seat body 1, the safety belt 2 passes around the back of the seat body 1, the pressure detection device 3 is located on the side of the safety belt 2 close to the seat body 1 and is in direct contact with the safety belt 2. When the safety belt 2 is tightened, it squeezes the pressure detection device 3 and transmits pressure to the pressure detection device 3. The pressure detected by the pressure detection device 3 can indicate whether the safety belt 2 is tightened, and the pressure detection device 3 is in direct contact with the safety belt 2. When the safety belt 2 is tightened, the safety belt 2 directly squeezes the pressure detection device 3, and the measurement is more accurate and reliable.

[0045] In such Figure 4 In the illustrated embodiment, the safety seat further comprises an intermediate piece 4, which is arranged between the pressure detection device 3 and the safety belt 2, and is used to transmit pressure to the pressure detection device 3 when the safety belt 2 is tightened. By providing the intermediate piece 4, the arrangement of the pressure detection device 3 can be made more flexible.

[0046] Optionally, the middle piece 4 is disposed on the seat belt 2 , and the middle piece 4 moves along with the seat belt 2 when the seat belt 2 is tightened, until it contacts the pressure detection device 3 and transmits the tensioning force exerted on the seat belt 2 to the pressure detection device 3 .

[0047] like Figure 5 and Figure 6 As shown, the middle piece 4 may include a Japanese-style buckle. The Japanese-style buckle has a simple structure, is easy to obtain, and can be well fixed on the safety belt 2.

[0048] There are many options for the specific structure of the pressure detection device 3. For example, the pressure detection device 3 may include a pressure sensor, which has a small size, accurate measurement, and is easy to control.

[0049] The structural form of the pressure detection device 3 can also be flexibly set. Figure 7 As shown, in order to facilitate detection and installation, the pressure detection device 3 is in an I-shape and has mounting holes at both ends. The pressure detection device 3 is installed on the seat body 1 by screws passing through the mounting holes.

[0050] A limiting structure is provided on the back of the seat body 1, and the limiting structure is used to limit the movement path of the middle piece 4 and guide the movement of the middle piece 4. By providing the limiting structure, the movement of the middle piece 4 can be made more accurate, and the middle piece 4 can be prevented from deflecting during the movement, which is conducive to the middle piece 4 being pressed smoothly against the pressure detection device 3.

[0051] like Figure 5 and Figure 8 As shown, the limiting structure includes a rib plate 5 extending from the back of the seat body 1 in a direction away from the seat body 1, and the middle piece 4 is clamped on the rib plate 5 and moves along the extending direction of the rib plate 5. When the seat belt 2 is in a loose state, the distance between the middle piece 4 and the seat body 1 is large. When the seat belt 2 is tightened, the middle piece 4 moves in a direction close to the seat body 1 under the limiting and guiding action of the rib plate 5 until it contacts the pressure detection device 3 and presses the pressure detection device 3. The pressure detection device 3 detects the extrusion force it receives, thereby determining whether the seat belt 2 is tightened.

[0052] The number of the rib plate 5 can be one or more. When the middle piece 4 adopts a Japanese buckle, the multiple rib plates 5 are respectively inserted into the two holes of the Japanese buckle to restrict the movement route of the Japanese buckle.

[0053] like Fig. 9 As shown, the back of the seat body 1 is provided with a first limiting groove 12, and the pressure detection device 3 is installed in the first limiting groove 12. By providing the first limiting groove 12, the installation of the pressure detection device 3 can be facilitated, and the pressure detection device 3 can be easily positioned to prevent the pressure detection device 3 from being misplaced or shifted, thereby affecting the pressure detection result.

[0054] The safety seat also includes a protective cover, and the pressure detection device 3 is arranged inside the protective cover. By providing the protective cover, it is possible to prevent other components on the seat body 1 or components in the external environment from affecting the pressure detection device 3, which is beneficial to protecting the pressure detection device 3 and ensuring the normal operation of the pressure detection device 3.

[0055] like Figure 5 As shown, the safety seat also includes a display device 6, which is signal-connected to the pressure detection device 3. The display device 6 is used to display the pressure detected by the pressure detection device 3 so that the user can know the tension of the safety belt 2 more intuitively.

[0056] The display device 6 can also be used to display a prompt message that can convey that the pressure has reached the preset value when the pressure detected by the pressure detection device 3 reaches the preset value. For example, when the pressure reaches the preset value, the display device 6 can display "OK" or "In place" and so on.

[0057] The pressure detection device 3 and the display device 6 may be connected by wireless signals or by wired signals.

[0058] When the pressure detection device 3 and the display device 6 are connected by wired signals, the safety seat further includes a connecting wire 7, which is used for signal connection between the display device 6 and the pressure detection device 3. The pressure detection result of the pressure detection device 3 can be transmitted to the display device 6 through the connecting wire 7. The signal transmission effect of the wired connection method is more stable.

[0059] like Fig.10 As shown, the seat body 1 is provided with a second limiting groove 13, and the connecting wire 7 is at least partially received in the second limiting groove 13. By providing the second limiting groove 13, the connecting wire 7 can be effectively received to prevent the connecting wire 7 from being entangled and affecting the data transmission effect.

[0060] The second limiting groove 13 can be arranged on the back side of the seat body 1 .

[0061] The display device 6 includes a circuit board 62 and a display 61 . The circuit board 62 is signal-connected to the pressure detection device 3 . The circuit board 62 is used to convert the pressure signal detected by the pressure detection device 3 into information displayed on the display 61 .

[0062] The circuit board 62 includes a CPU operation controller, an amplifying and filtering circuit, an A / D analog-to-digital converter and a display driving circuit. When the pressure of the five-point safety belt is applied to the pressure detection device 3, the pressure detection device 3 is deformed, thereby changing the impedance, and the excitation voltage is changed at the same time, and a changing analog signal is output. The signal is amplified by the amplifying and filtering circuit and output to the A / D analog-to-digital converter, and converted into a digital signal that is easy to process and output to the CPU operation controller. The CPU operation controller digitally outputs the pressure value result received by the pressure detection device 3 to the display 61 according to the display driving circuit. The CPU operation controller is also provided with a reset button. By operating the reset button, the data in the CPU operation controller can be cleared to facilitate the storage of new data.

[0063] Optionally, the safety seat further includes a speaker, which is connected to the pressure detection device 3 by signal, and is used to play the pressure detected by the pressure detection device 3. Alternatively, when the pressure detected by the pressure detection device 3 reaches a preset value, the speaker is used to play a prompt message that can convey that the pressure has reached the preset value, so as to more directly convey the tightness of the safety belt 2 to the operator.

[0064] Optionally, speakers are arranged on both sides of the head of the safety seat so as to more effectively transmit the sound to the ears of the operator.

[0065] The display device 6 further includes a battery 63, and the battery 63 is used to provide power to the display 61 and the circuit board 62. A decorative cover 11 is also provided on the periphery of the display 61.

[0066] The display device 6 may be optionally but not limitedly arranged at the front of the seat body 1 for the convenience of the user to observe.

[0067] The safety seat further comprises an adjusting device for adjusting the tightness of the safety belt 2 and an outer cover 10 for mounting the adjusting device, and the display device 6 is arranged adjacent to the adjusting device and mounted on the outer cover 10. The advantage of such an arrangement is that the pressure detected by the pressure detection device 3 can be conveniently checked while the safety belt 2 is being adjusted, so that the safety belt 2 can be adjusted purposefully and the adjustment efficiency is higher.

[0068] The display device 6 is mounted on the outer cover 10 and can be reliably mounted using existing components, without the need to provide a special mounting piece for the display device 6 .

[0069] The adjustment device includes an adjuster 8 and an adjustment button 9 that cooperates with the adjuster 8. Optionally, the display device 6 is arranged adjacent to the adjustment button 9 to facilitate the user to easily see the pressure displayed by the display device 6 when adjusting the adjustment button 9, thereby more efficiently adjusting the tightness of the seat belt 2.

[0070] like Fig.10 As shown, the seat body 1 is further provided with a third limiting groove 14, and the adjuster 8 is installed in the third limiting groove 14 to fix the adjuster 8, prevent the adjuster 8 from shifting, and ensure the stability of the adjuster 8. A partition 15 is provided between the third limiting groove 14 and the second limiting groove 13.

[0071] In the above-mentioned embodiments, the safety belt 2 comprises a five-point safety belt.

[0072] The five-point safety belt is arranged in a Y shape on the back of the seat body 1. Optionally, the pressure detection device 3 is arranged in the lower section of the Y shape, and the pressure detection device 3 is arranged on the section close to the seat body when the lower section of the Y shape is tightened and stressed, so as to squeeze the pressure detection device 3 and output a pressure signal when the lower section of the Y shape of the safety belt is tightened.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A safety seat, characterized in that: include: Seat body (1); A safety belt (2) arranged on the seat body (1) and used to restrain an occupant sitting on the seat body (1); A pressure detection device (3) is arranged on the seat body (1) and is used to detect the pressure transmitted to the pressure detection device (3) when the safety belt (2) is tightened; and an intermediate piece (4), the intermediate piece (4) being arranged between the pressure detection device (3) and the safety belt (2), the intermediate piece (4) being used to transmit pressure to the pressure detection device (3) when the safety belt (2) is tightened; The middle piece (4) is arranged on the safety belt (2), and the middle piece (4) moves along with the safety belt (2) when the safety belt (2) is tightened, until it contacts the pressure detection device (3) and transmits the tensioning force exerted on the safety belt (2) to the pressure detection device (3); A limiting structure is provided on the back of the seat body (1), the limiting structure being used to limit the movement path of the middle piece (4) and to guide the movement of the middle piece (4); The limiting structure comprises a rib plate (5) extending from the back side of the seat body (1) in a direction away from the seat body (1), and the middle piece (4) is clamped on the rib plate (5) and moves along the extension direction of the rib plate (5).

2. The safety seat according to claim 1, characterized in that: The pressure detection device (3) is installed on the back of the seat body (1), and the safety belt (2) passes around the back of the seat body (1). The pressure detection device (3) is located on a side of the safety belt (2) close to the seat body (1) and is in direct contact with the safety belt (2). When the safety belt (2) is tightened, it squeezes the pressure detection device (3) and transmits pressure to the pressure detection device (3).

3. The safety seat according to claim 1, characterized in that: The middle piece (4) comprises a Japanese-style buckle.

4. The safety seat according to claim 1, characterized in that: The back side of the seat body (1) is provided with a first limiting groove (12), and the pressure detection device (3) is installed in the first limiting groove (12).

5. The safety seat according to claim 1, characterized in that: It also comprises a protective cover, wherein the pressure detection device (3) is arranged inside the protective cover.

6. The safety seat according to claim 1, characterized in that: The pressure detection device (3) comprises a pressure sensor.

7. The safety seat according to claim 1, characterized in that: It also includes a display device (6), which is connected to the pressure detection device (3) by signal, and is used to display the pressure detected by the pressure detection device (3), and / or, when the pressure detected by the pressure detection device (3) reaches a preset value, display a prompt message that can convey that the pressure has reached the preset value.

8. The safety seat according to claim 7, characterized in that: It also includes a connecting line (7), wherein the connecting line (7) is used for signal connection between the display device (6) and the pressure detection device (3).

9. The safety seat according to claim 8, characterized in that: The seat body (1) is provided with a second limiting groove (13), and the connecting line (7) is at least partially received in the second limiting groove (13).

10. The safety seat according to claim 7, characterized in that: The display device (6) comprises a circuit board (62) and a display (61); the circuit board (62) is signal-connected to the pressure detection device (3); the circuit board (62) is used to convert the pressure signal detected by the pressure detection device (3) into information displayed on the display (61).

11. The safety seat according to claim 7, characterized in that: The display device (6) is arranged at the front part of the seat body (1).

12. The safety seat according to claim 7, characterized in that: It also includes an adjustment device for adjusting the tightness of the safety belt (2) and an outer cover (10) for mounting the adjustment device, and the display device (6) is arranged adjacent to the adjustment device and mounted on the outer cover (10).

13. The safety seat according to claim 7, characterized in that: It also includes a speaker, which is connected to the pressure detection device (3) by signal, and is used to play the pressure detected by the pressure detection device (3) or, when the pressure detected by the pressure detection device (3) reaches a preset value, play a prompt message that can convey that the pressure has reached the preset value.

14. The safety seat according to claim 1, characterized in that: The safety belt (2) comprises a five-point safety belt.

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