Automobile safety belt with good comfort

Abstract

The automobile safety belt comprises a belt body, an insertion plate, a retractor and a guide plate, the guide plate is hung on the inner wall of an automobile, the belt body movably penetrates through the guide plate, the insertion plate is installed at one end of the belt body, so that the belt body can be buckled in an insertion buckle installed on the automobile, and the safety belt is fixed to the inner wall of the automobile. And the other end of the belt body is provided with the retractor, so that the belt body can be coiled and contracted. According to the automobile safety belt, the air bag assembly and the air pressure adjusting assembly are arranged in a matched mode, when the automobile safety belt is worn, the air bag assembly can be inflated through the air pressure adjusting assembly, the air bag assembly makes contact with a passenger, and therefore the passenger is prevented from being excessively tightened when the safety belt makes contact with the passenger; in addition, after the passenger cancels wearing the safety belt, the air bag assembly can be extruded to exhaust air when the retractor winds the belt body, so that the safety belt can be smoothly retracted.

Description

Technical Field

[0001] This application relates to the technical field of seat belts, and particularly to an automotive seat belt with good comfort. Background Art

[0002] An automotive seat belt is a device used in a vehicle to reduce the harm to passengers and the driver when the vehicle body is violently impacted. The speed of modern vehicles is very high. Once a collision occurs, the passenger's body will continue to move forward due to inertia and collide with the vehicle body inside the vehicle. In severe cases, the windshield may be broken and the passenger may fly out of the window. To prevent such injuries during a car crash, the public security department requires that all occupants in the front row of vehicles must wear seat belts. In case of a traffic accident, the seat belt plays a role of fixing and buffering the person to prevent secondary injuries.

[0003] In the prior art, an automotive seat belt generally includes a belt body, a plug board, a buckle, a retractor, and a guide plate. Among them, the guide plate and the buckle are respectively installed on the inner side of the vehicle and beside the seat. The retractor is installed and hidden inside the vehicle body. The belt body passes through the guide plate, and one end of the belt body is fastened by cooperating the plug board with the buckle. The other end of the belt is adjusted in length during wearing by cooperating with the retractor.

[0004] When the automotive seat belt in the prior art is worn, its belt body will fit tightly against the passenger's body, making it easy for the passenger to feel tightened by the belt body during a long journey, resulting in poor comfort in using the automotive seat belt. Utility Model Content

[0005] In order to improve the problems proposed in the above background art, this application provides an automotive seat belt with good comfort.

[0006] The automotive seat belt with good comfort provided by this application adopts the following technical solutions:

[0007] An automotive seat belt with good comfort includes a belt body, a plug board, a retractor, and a guide plate. The guide plate is suspended on the inner wall of the vehicle. The belt body passes through the guide plate movably, and a plug board is installed at one end of the belt body so that the belt body can be buckled into a buckle installed on the vehicle. A retractor is installed at the other end of the belt body so that the belt body can be coiled and retracted. The automotive seat belt with good comfort further includes an airbag assembly and a pressure adjustment assembly. The airbag assembly is fixedly connected to the inner side of the belt body and extends a certain length along the length direction of the belt body from one end close to the plug board. The pressure adjustment assembly is fixedly connected to the top of the plug board, and the belt body passes through the pressure adjustment assembly. One end of the airbag assembly close to the pressure adjustment assembly extends into the pressure adjustment assembly, and the airbag assembly adjusts its internal air pressure by using the pressure adjustment assembly.

[0008] Further, the air pressure adjustment assembly includes a base, an air inflation part, and an exhaust part. The middle of the base is penetrated by the belt body, and the joints between the base and the belt body are adhesively sealed with glue. One end of the airbag assembly close to the plug board extends into the base, and an opening communicating with the inner cavity of the base is formed at one end of the airbag assembly located in the base. The air inflation part is installed in the base and can extract external air to pressurize and inflate the base. The exhaust part is installed on one side of the base, and the exhaust part can adjust the conduction state between the base and the outside according to the pressure change in the base.

[0009] Further, the base includes an installation box, a first cover plate, and a second cover plate. Assembly openings communicating with its inner cavity are formed on opposite sides of the installation box. The first cover plate and the second cover plate are fixedly connected to the installation box at opposite assembly openings respectively, and the joints between the first cover plate and the second cover plate and the installation box are adhesively sealed with glue. An exhaust port penetrating the second cover plate is formed in the middle of the second cover plate.

[0010] Further, the exhaust part includes an exhaust cover and a spring. The spring is arranged in the inner cavity of the installation box, and the spring penetrates the belt body and the exhaust port on the second cover plate. Two ends of the spring are fixedly connected to opposite sides of the first cover plate and the exhaust cover respectively. The exhaust cover is arranged on the outside of the second cover plate and blocks the exhaust port on the second cover plate. The diameter of the exhaust cover is larger than the diameter of the exhaust port on the second cover plate. A plurality of magnet blocks capable of adsorbing the second cover plate are embedded and fixed on the outer ring of the exhaust cover facing the second cover plate.

[0011] Further, the air inflation part includes an air pump, an injection pipe, and an electromagnet. The air pump is installed in the inner cavity of the installation box, and the output end of the air pump is connected to one end of the injection pipe. The other end of the injection pipe extends into the gap between the second cover plate and the belt body. The electromagnet is installed on the top of the installation box, and the output end of the electromagnet is telescopically movably arranged on the side of the exhaust cover.

[0012] Further, the airbag assembly includes a plurality of strip-shaped airbags. The plurality of strip-shaped airbags are arranged at equal intervals along the width direction of the belt body, and the strip-shaped airbags are adhesively bonded or tied with binding wires to the belt body. The length of each strip-shaped airbag in the airbag assembly is set to be one-half to two-thirds of the length of the belt body, and an opening is formed at one end of each strip-shaped airbag located in the installation box.

[0013] The beneficial technical effect of the present application is as follows: through the coordinated arrangement of the air bag assembly and the air pressure adjustment assembly, the air bag assembly can be inflated by the air pressure adjustment assembly when the automobile safety belt is worn, and the air bag assembly can be brought into contact with the passenger, thereby preventing the passenger from being over-tightened when the safety belt contacts the passenger; in addition, after the passenger stops wearing the safety belt, the air can be squeezed out of the air when the retractor rewinds the belt body, thereby allowing the safety belt to be smoothly retracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a car safety belt with good comfort according to an embodiment of the present application;

[0015] Figure 2 yes Figure 1 A magnified view of the structure at center A;

[0016] Figure 3 It is a schematic diagram of the structure of the air pressure adjustment component after being cut open in the embodiment of the present application.

[0017] Figure numerals: 10, belt body; 20, plug plate; 30, retractor; 40, guide plate; 50, air bag assembly; 60, air pressure adjustment assembly; 61, installation box; 62, first cover plate; 63, second cover plate; 64, exhaust cover; 65, spring; 66, air pump; 67, air injection pipe; 68, electromagnet. DETAILED DESCRIPTION

[0018] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0019] The present application embodiment discloses a car safety belt with good comfort. Figures 1 to 3, a car seat belt with good comfort includes a belt body 10, a plug board 20, a retractor 30, a guide plate 40, an airbag assembly 50 and a pneumatic adjustment assembly 60. The belt body 10 passes through the guide plate 40 movably, and one end of the belt body 10 is provided with the plug board 20, so that the belt body 10 can be buckled into a buckle installed on the car. The other end of the belt body 10 is provided with the retractor 30, so that the belt body 10 can be coiled and retracted. The airbag assembly 50 is fixedly connected to the inner side surface of the belt body 10, and the airbag assembly 50 extends a certain length along the length direction of the belt body 10 from one end close to the plug board 20 of the belt body 10, so that when a passenger wears the seat belt, the airbag assembly 50 on the inner side surface of the belt body 10 can contact with the passenger's body. The pneumatic adjustment assembly 60 is fixedly connected to the top of the plug board 20, and the belt body 10 passes through the pneumatic adjustment assembly 60. One end of the airbag assembly 50 close to the pneumatic adjustment assembly 60 extends into the pneumatic adjustment assembly 60, and the airbag assembly 50 can adjust its internal air pressure by using the pneumatic adjustment assembly 60, so that when a passenger wears the seat belt, the inflated airbag assembly 50 can contact with the passenger's body, and thus the elastic force of the airbag assembly 50 can be used to reduce the tightening touch feeling of the passenger; when the passenger cancels wearing the seat belt, the deflated airbag assembly 50 can be used to avoid affecting the coiling and retraction of the belt body 10.

[0020] In this embodiment, the airbag assembly 50 includes a plurality of strip-shaped airbags. The length of each strip-shaped airbag in the airbag assembly 50 is set to be one-half to two-thirds of the length of the belt body 10, and the plurality of strip-shaped airbags are arranged at equal intervals along the width direction of the belt body 10, so that the airbag assembly 50 can contact with the passenger's body in a larger area and more evenly. The strip-shaped airbag and the belt body 10 can be fixedly bonded or tied with a binding wire, so as to avoid separation between the two. One end of each strip-shaped airbag located in the installation box 61 of the pneumatic adjustment assembly 60 is formed with an opening, and the opening can be used for inflating or deflating the strip-shaped airbag.

[0021] In this embodiment, the pneumatic adjustment assembly 60 includes a base, an inflation part and an exhaust part. The middle part of the base is passed through by the belt body 10, and the joints between the base and the belt body 10 are sealed by adhesive bonding. In addition, the joints of the base itself can also be sealed by adhesive, so as to avoid air leakage at the base. One end of the airbag assembly 50 close to the plug board 20 extends into the base, and one end of the airbag assembly 50 located in the base can communicate with the inner cavity of the base. The inflation part is installed in the base and can extract external air to pressurize and inflate the base, and at the same time, the airbag assembly 50 can be inflated under the influence of the pressurization in the base. The exhaust part is installed on one side of the base, and the exhaust part can adjust the conduction state between the base and the outside according to the pressure change in the base. When the airbag assembly 50 discharges gas into the base through the opening, the base can exhaust air to the outside through the exhaust part.

[0022] In this embodiment, the base includes a mounting box 61, a first cover plate 62, and a second cover plate 63. Assembly ports are formed on both opposite sides of the mounting box 61 and communicate with its inner cavity. The first cover plate 62 and the second cover plate 63 are respectively fixedly connected to the mounting box 61 at the two opposite assembly ports, and the joints between the first cover plate 62 and the second cover plate 63 and the mounting box 61 are sealed by glue bonding. An exhaust port penetrating the second cover plate 63 is formed in the middle of the second cover plate 63, and the base can exhaust air to the outside through the exhaust port.

[0023] In this embodiment, the exhaust part includes an exhaust cover 64 and a spring 65. The spring 65 is arranged in the inner cavity of the mounting box 61, and the spring 65 penetrates through the exhaust port on the belt body 10 and the second cover plate 63 so that the telescopic deformation of the spring 65 is not interfered. The two ends of the spring 65 are respectively fixedly connected to the opposite sides of the first cover plate 62 and the exhaust cover 64. The exhaust cover 64 is arranged outside the second cover plate 63. The diameter of the exhaust cover 64 is larger than the diameter of the exhaust port on the second cover plate 63, and the exhaust cover 64 can block the exhaust port on the second cover plate 63 under normal conditions. When the spring 65 does not produce tensile deformation, the exhaust port can be blocked by the exhaust cover 64, thereby preventing the base from communicating with the outside; when the spring 65 produces tensile deformation, the exhaust cover 64 can be separated from the exhaust port, and the base can communicate with the outside through the exhaust port. A number of magnet blocks that can adsorb the second cover plate 63 are embedded and fixed on the outer ring of the exhaust cover 64 facing the second cover plate 63, so that the exhaust cover 64 can reduce accidental movement when blocking the exhaust port.

[0024] In this embodiment, the inflation part includes an air pump 66, an injection pipe 67, and an electromagnet 68. The air pump 66 is installed in the inner cavity of the mounting box 61, and the output end of the air pump 66 is connected to one end of the injection pipe 67. The other end of the injection pipe 67 extends into the gap between the second cover plate 63 and the belt body 10, so that the air pump 66 can extract external air and inject it into the gap between the second cover plate 63 and the belt body 10. The electromagnet 68 is installed on the top of the mounting box 61, and the output end of the electromagnet 68 is telescopically movably arranged on the side of the exhaust cover 64, so that when the air pump 66 injects air, the output end of the electromagnet 68 can be used to block the movement of the exhaust cover 64, so that the air bag assembly 50 communicated with the base can be inflated when the air pump 66 injects air. The inflation part may also include a storage battery for supplying power to the air pump 66 and the electromagnet 68.

[0025] When the passenger wears the seat belt, the output end of the electromagnet 68 can extend out and block the movement of the exhaust cover 64, and then the air pump 66 can inject air, so that the air bag assembly 50 is inflated and contacts the passenger's body. When the passenger removes the seat belt, the output end of the electromagnet 68 retracts, and when the retractor 30 winds up the belt body 10, the air bag assembly 50 can be squeezed, so that the air bag assembly 50 exhausts air to the base through the opening, and at this time, after being pressurized in the base, the exhaust cover 64 can be pushed open, so as to discharge the redundant air in the air bag assembly 50 through the exhaust port.

[0026] The system of the present invention may further include a control system for controlling the operations of the above-mentioned electromagnet and air pump to perform automatic operation of air pressure adjustment. It should be understood that there is no particular limitation on this control system, and it can be implemented by control technologies in the prior art, which will not be elaborated here.

[0027] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A car safety belt with good comfort, comprising a belt body (10), a plug plate (20), a retractor (30) and a guide plate (40), wherein the guide plate (40) is hoisted on the inner wall of the car, the belt body (10) movably passes through the guide plate (40), and the plug plate (20) is installed at one end of the belt body (10) so that the belt body (10) can be buckled in a plug buckle installed on the car, and the retractor (30) is installed at the other end of the belt body (10) so that the belt body (10) can be rolled up and retracted, characterized in that: The invention also comprises an air bag component (50) and an air pressure adjustment component (60), wherein the air bag component (50) is fixedly connected to the inner side surface of the belt body (10), and the air bag component (50) extends a certain length along the length direction of the belt body (10) from one end of the belt body (10) close to the plug board (20), the air pressure adjustment component (60) is fixedly connected to the top of the plug board (20), and the belt body (10) passes through the air pressure adjustment component (60), and one end of the air bag component (50) close to the air pressure adjustment component (60) extends into the air pressure adjustment component (60), and the air bag component (50) uses the air pressure adjustment component (60) to adjust its internal air pressure.

2. A comfortable car safety belt according to claim 1, characterized in that: The air pressure adjustment component (60) comprises a base, an inflation part and an exhaust part, the middle part of the base is penetrated by the belt body (10), and the joints between the base and the belt body (10) are sealed by colloid bonding, one end of the air bag component (50) close to the plug plate (20) extends into the base, and one end of the air bag component (50) located in the base is formed with an opening connected to the inner cavity of the base, the inflation part is installed in the base and can draw external air to pressurize and inflate the base; the exhaust part is installed on one side of the base, and the exhaust part can adjust the conductive state between the base and the outside by using the pressure change in the base.

3. A comfortable car safety belt according to claim 2, characterized in that: The base comprises a mounting box (61), a first cover plate (62) and a second cover plate (63); two opposite sides of the mounting box (61) are formed with assembly ports communicating with its inner cavity; the first cover plate (62) and the second cover plate (63) are respectively fixedly connected to the mounting box (61) at the two opposite assembly ports; the joints between the first cover plate (62) and the second cover plate (63) and the mounting box (61) are sealed by adhesive bonding; and an exhaust port penetrating the second cover plate (63) is formed in the middle of the second cover plate (63).

4. A comfortable car safety belt according to claim 3, characterized in that: The exhaust portion comprises an exhaust cover (64) and a spring (65), wherein the spring (65) is arranged in the inner cavity of the installation box (61), and the spring (65) passes through the belt body (10) and the exhaust port on the second cover plate (63), and the two ends of the spring (65) are respectively fixedly connected to the first cover plate (62) and the exhaust cover (64) on the opposite sides, and the exhaust cover (64) is arranged on the outer side of the second cover plate (63) and covers the exhaust port on the second cover plate (63).

5. A comfortable car safety belt according to claim 4, characterized in that: The diameter of the exhaust cover (64) is greater than the diameter of the exhaust port on the second cover plate (63); a plurality of magnet blocks capable of adsorbing the second cover plate (63) are embedded and fixed on the outer ring of the exhaust cover (64) on the side facing the second cover plate (63).

6. A comfortable car safety belt according to claim 4 or 5, characterized in that: The inflation portion comprises an air pump (66), an air injection pipe (67) and an electromagnet (68); the air pump (66) is installed in the inner cavity of the installation box (61), and the output end of the air pump (66) is connected to one end of the air injection pipe (67); the other end of the air injection pipe (67) extends into the gap between the second cover plate (63) and the belt body (10); the electromagnet (68) is installed on the top of the installation box (61), and the output end of the electromagnet (68) is telescopically movably arranged on the side of the exhaust cover (64).

7. A comfortable car safety belt according to claim 3, characterized in that: The air bag assembly (50) comprises a plurality of strip-shaped air bags, the plurality of strip-shaped air bags are arranged at equal intervals along the width direction of the belt body (10), and the strip-shaped air bags are bonded to the belt body (10) or fastened with binding wires.

8. A comfortable car safety belt according to claim 7, characterized in that: The length of each strip-shaped air bag in the air bag assembly (50) is set to be one half to two thirds of the length of the belt body (10), and an opening is formed at one end of each strip-shaped air bag located in the installation box (61).

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