Quick release type seat safety structure

Abstract

The invention provides a quick-release type seat safety structure. The quick-release type seat safety structure comprises a cushion base plate, a safety belt connecting device with an inserting end, a protective cover, a buffer layer and an anti-collision protective pad. The cushion base plate is arranged to be of a plate-shaped structure, so that the structural strength of the safety structure is improved; the first connecting part is arranged between the two legs of the cushion base plate, the first connecting part is provided with the multiple female buckles, and the safety belt connecting device installed on the safety belt is detachably connected with the female buckles, so that the safety belt located on the abdomen can be pulled and fixed to the first connecting part between the thighs when the safety belt is normally tied; the abdomen of the user is prevented from being pressed; the protective cover is mounted on the periphery of the first connecting part, so that the safety belt connecting device can be buried in the cushion main body, and the safety belt connecting device is prevented from causing secondary injury to a user; by laying the buffer layer, the protective cover can be buried, and the comfort is improved. The seat is convenient to operate and stable in structure, and the safety and comfort of the seat are improved.

Description

Technical Field

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

[0002] With cars rapidly entering thousands of households and the promotion and application of other more convenient public transportation, more and more pregnant women, children and other people whose abdomens cannot bear pressure need to drive or take public transportation to travel. Because the car seat belt will suddenly tighten when braking or encountering a traffic accident, it will compress or injure the abdomen of people whose abdomens cannot bear pressure, causing harm to these people.

[0003] Chinese utility model patent CN205589177U discloses a safety belt fixing device for pregnant women, including a bracket body fixed on a seat and a safety belt winding handle installed on the surface of the bracket body. By fixing the bracket body on the seat between the thighs, the safety belt is tightly hooked by the winding handle and fixed between the thighs, so that the safety belt will not cause pressure on the belly of the pregnant woman in case of an emergency. However, the safety belt fixing device of this scheme is made of hard material and protrudes and is exposed between the thighs of the passenger. When braking or encountering a traffic accident, the perineum and thigh roots of the pregnant woman are very likely to hit the metal hook and cause secondary injury.

[0004] Chinese utility model patent CN208411663U discloses a safety belt for pregnant women in the rear seat of a car. Based on the existing car safety belt, this device leads a safety belt webbing from the LATCH interface of the rear seat of the car and extends it from the gap of the rear seat to the crotch position of the pregnant woman, and installs an O-shaped connecting buckle at the crotch position of the pregnant woman, so that the car safety belt passes between the thighs of the pregnant woman, avoiding the adverse effect of the safety belt on the baby in the belly. However, the pregnant woman's safety belt of this scheme can only be installed in the rear seat of the car, and cannot be installed and fixed in the front seat of the car; and the O-shaped connecting buckle directly contacts the crotch position of the pregnant woman, which may cause secondary injuries such as impact to the perineum and thigh roots of the pregnant woman when braking or encountering a traffic accident.

[0005] Chinese invention patent CN106627473A discloses a safety belt for pregnant women, which includes a cushion and a safety belt fixing device. The cushion is provided with openings in the middle and two front corners, and safety belt fixing belts are provided at the two rear corners respectively. The safety belt fixing belts can pass through the opening in the middle or the openings in the two front corners to fix the car's safety belt in the middle of the user's thigh or the outside of the thigh. The safety belt can protect the user's abdomen when the car collides, and can be used regardless of whether the user wears a skirt or pants. However, the safety belt for pregnant women provided by this scheme is not only difficult to install and disassemble, but also only uses textiles and safety belts to make a safety cushion. Due to the lack of protection of high-strength structural parts, it is easy to cause safety hazards. Summary of the invention

[0006] The technical problem to be solved by the present invention is: to address the deficiencies of the prior art and provide a safety structure for preventing abdominal compression that has high-strength support and protection, is safe and stable, does not cause secondary injuries, is easy to operate, and can be applied to both front and rear seats and can accommodate users of different heights and body shapes. The quick-release seat safety structure provided in this application adopts the following technical solution: A quick-release seat safety structure, the seat comprising a safety belt, the safety structure comprising: The seat cushion base plate is a plate-like structure arranged on the seat and used to bear weight. A hollow structure is arranged at the front end of the seat cushion base plate between the two legs to form a connecting portion. The connecting portion is provided with a plurality of female buckles at different distances from the seat back. A safety belt connecting device, comprising a connecting end and a plug-in end fixedly connected to the connecting end, wherein the connecting end is provided with a slide groove capable of sliding freely on the safety belt, and the plug-in end is provided with a lock hole detachably plug-connected to the female buckle; A protective cover installed around the connecting portion and used to surround and protect a safety belt connecting device connected to the connecting portion; and The cushion layer wraps the cushion substrate and the protective cover to form a cushion.

[0007] Furthermore, the connecting end includes a fixed part and a movable part, the fixed part is integrally manufactured and arranged with the plug-in end, the movable part is detachably fixedly connected to the fixed part, and a gap forming a slide groove is provided between the movable part and the fixed part.

[0008] Furthermore, the connecting end is a flat ring, the inner diameter of the flat ring forms a sliding groove, a first notch is opened on one side of the flat ring, an opening and closing rod is hinged on the flat ring at one end of the first notch, and the other end of the opening and closing rod is detachably connected to the flat ring at the other end of the first notch through a threaded sleeve.

[0009] Furthermore, the safety belt connecting device includes two connecting plates and a fixed shell, one end of the connecting plate is a plug-in part, and the other end is a connecting part, the plug-in part is provided with a locking hole, the connecting part is provided with a strip groove, and the strip groove is provided with a second notch for the safety belt to enter and exit. After the two connecting plates are fitted together, they are fixed together by the fixed shell. After the two connecting plates are fitted together, the locking holes are aligned and overlapped, and the second notches on the strip grooves are staggered.

[0010] Furthermore, the two connecting plates have exactly the same shape and size. When fitting together, one of the connecting plates is flipped 180 degrees so that the two second notches are staggered.

[0011] Furthermore, the fixed shell is composed of two half shells that are detachably connected, and both half shells are provided with a recessed groove that matches the connecting portion of the connecting plate and a through groove that matches the strip groove.

[0012] Furthermore, the connecting portion is a first protrusion arranged at the front end of the seat cushion base plate and located between the two legs.

[0013] Furthermore, a second upward protrusion is provided on the seat cushion base plate at the outer side of the two legs, a clamping sleeve is installed under the second protrusion, and two ends of the clamping sleeve are respectively fixed to the bottom of the seat cushion base plate and the end of the second protrusion, forming a hollow structure under the second protrusion.

[0014] Furthermore, a length-adjustable connecting component is installed in the hollow structure formed by the second protrusion and the sleeve, and the connecting component can pass through the rear of the safety structure and be detachably connected to the ISOFIX interface of the child safety seat fixing system (International Standards Organization FIX).

[0015] Furthermore, the connecting component is a safety structure fixing belt or an ISOFIX hard interface connecting part of a child safety seat fixing system, and the ends of the safety structure fixing belt and the ISOFIX hard interface connecting part of the child safety seat fixing system that pass through the seat cushion base plate are respectively provided with hooks or buckles that can be detachably connected to the ISOFIX interface of the child safety seat fixing system.

[0016] Furthermore, the protective cover is a U-shaped cover comprising a horizontal bottom surface, a U-shaped inner side surface, a U-shaped outer side surface and a top surface, the horizontal bottom surface and the U-shaped outer side surface are respectively fixed on the connecting part and the seat cushion base plate, the U-shaped inner side surface and the U-shaped outer side surface surround and protect the safety belt connecting device connected to the connecting part, the shape and size of the horizontal bottom surface are adapted to the connecting part, so that the safety belt connecting device is connected to the connecting part inside the U-shaped cover.

[0017] Furthermore, the U-shaped inner side surface and the U-shaped outer side surface are three-sided gradually convex sloped side surfaces.

[0018] Furthermore, the seat cushion base plate is a hollow structural plate, so that the connecting portion at the front end of the seat cushion base plate located between the two legs and the position located outside the two legs are both hollow structures.

[0019] Furthermore, a plurality of cushion blocks are arranged in the hollow structural plate.

[0020] Furthermore, a height adjustment pad is installed below the seat cushion base plate via a connecting piece, and the connecting piece is a connecting hole, a connecting groove or a connecting block provided on the seat cushion base plate.

[0021] Furthermore, the safety structure also includes an anti-collision protection pad, which is arranged on the seat cushion base at the side of the connecting part close to the user, and is used to restrain the safety belt so that the safety belt forms surface contact with the user's thigh root and lower abdomen to prevent the side of the safety belt from cutting the user.

[0022] Furthermore, a height adjustment pad is installed below the seat cushion base plate via a connecting piece, and the connecting piece is a connecting hole, a connecting groove or a connecting block provided on the seat cushion base plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the seat cushion base plate as a plate-like structure, the structural strength of the safety structure of the present application can be improved, and better protection can be provided for users whose abdomen cannot be compressed; by setting a connecting part between the two legs on the seat cushion base plate, and detachably connecting the seat belt connecting device installed on the seat belt to the female buckle on the connecting part, the seat belt knot located at the abdomen when normally fastened can be fixed to the connecting part between the thighs of the user, thereby preventing the abdomen of the user from being compressed; by installing a protective cover around the connecting part, the seat belt connecting device can be buried in the middle of the main body of the safety structure, thereby preventing the seat belt connecting device from causing secondary damage to the user; by laying a buffer layer, not only can the protective cover be prevented from causing damage to the user, but also the riding comfort can be improved; by adjusting the seat belt connected between the thighs through the anti-collision protection pad, the middle part of the seat belt forms a surface contact with the thigh root and the bottom of the lower abdomen of the user, thereby not only improving the comfort of the user, but also preventing the side of the seat belt from cutting the user.

[0024] 2. By setting the shape of the horizontal bottom surface of the U-shaped cover to match the shape of the connecting part, the safety belt connecting device can be fixed on the connecting part and hidden in the U-shaped cover. By setting the U-shaped inner side surface and the U-shaped outer side surface to a three-sided sloped gradually raised shape, the collision pressure can be released and alleviated, and when a vehicle, transportation vehicle or amusement facility collides, the user is prevented from directly colliding with the safety belt connecting device, thereby protecting the user's safety.

[0025] 3. By setting the position of the seat cushion base between the thighs and the outer side of the thighs as a hollow structure, not only space is provided for the connection and fixation of the safety belt connection device and the installation of the connection component, but also the weight of the seat cushion base can be greatly reduced, and a lightweight design is achieved while ensuring the structural strength. By setting the connection component as a safety structure fixing belt or an ISOFIX hard interface connector of a child safety seat fixing system, the safety structure of the present application can be connected to the ISOFIX interface of the child safety seat fixing system on the rear seat to meet the use specifications of different countries, and the length of the connection component can be adjusted, so that the safety structure of the present application can be applied to seats of different sizes; the hook on the safety structure fixing belt can be connected to the ISOFIX interface of the child safety seat fixing system on the rear seat, so that the safety structure of the present application can be installed on the rear seat. When the safety structure needs to be installed on the front seat, the hook on the safety structure fixing belt or the buckle on the ISOFIX hard interface connector can be connected to a fixing belt with a buckle metal ring, the hook or the buckle of the ISOFIX hard interface connector of the child safety seat fixing system is connected to the metal ring, the fixing belt is tied to the backrest of the front seat, and the buckle is fixed, thereby fixing the safety structure to the front seat to provide protection for the user who drives or sits in the front row.

[0026] 4. By arranging a female buckle and a plug-in end on the connecting part, the detachment of the safety belt connecting device from the connecting part is fast and reliable, and the connection position is adjustable. The installation position of the safety belt connecting device can be adjusted according to the abdominal size and body shape of different users, thereby improving the comfort of the safety structure of the present application; and by fixing the safety belt on the female buckle as close to the user's thigh root as possible, the displacement of the user's forward impact during braking or an accident is minimized, so that the safety belt can generate restraint force in time, thereby improving safety performance. By installing a height adjustment pad under the seat cushion base plate, the thickness of the height adjustment pad can be adjusted according to the user's height, so that adults and children of different heights can use the safety structure of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a quick-release seat safety structure in Embodiment 1; Figure 2is a front cross-sectional view of a quick-release seat safety structure in Embodiment 1; Figure 3 is a side cross-sectional view of a quick-release seat safety structure in Embodiment 1; Figure 4 It is a schematic diagram of the safety belt being connected to the connecting part; Figure 5 Schematic diagram of the use status of the long strip anti-collision protection pad; Figure 6 Schematic diagram of the use status of the triangular anti-collision protection pad; Figure 7 is a schematic diagram of the top view of the U-shaped cover in the first embodiment; Figure 8 is a front view structural schematic diagram of the U-shaped cover in the first embodiment; Fig. 9 is a structural schematic diagram of a safety belt connection device in Embodiment 1; Fig.10 is a structural schematic diagram of a safety belt connection device in Embodiment 2; Fig.11 is a structural schematic diagram of a safety belt connection device in Embodiment 3; Fig.12 is a structural schematic diagram of a safety belt connection device in Embodiment 4; Fig.13 is an exploded schematic diagram of the full-belt connection device in the fourth embodiment; Fig.14 It is a schematic diagram of the overall structure of a quick-release seat safety structure in Embodiment 5; Fig.15 is a front cross-sectional view of a quick-release seat safety structure in Embodiment 3; Fig.16 is a side cross-sectional view of a quick-release seat safety structure in Embodiment 3; Fig.17 is a schematic diagram of the top view of the U-shaped cover in the third embodiment; Fig.18 yes Fig.17 A schematic diagram of a section along the center line; Fig.19 This is a schematic diagram of an exploded view of the full-belt connection device in Example 6; Fig. 20 This is a schematic diagram of an exploded view of the full-belt connection device in Embodiment 7; Fig.21 This is a schematic diagram of the decomposition of the full-belt connection device in Example 8.

[0028] Reference numerals: 100-seat base plate, 110-first connecting portion, 114-front wall, 120-first protrusion, 121-first notch, 130-second protrusion, 140-ferrule, 150-installation groove, 160-cushion block, 170-connecting hole, 180-female buckle; 200-seat belt connecting device, 210-connecting end, 211-fixing part, 212-movable part, 213-ear plate, 214-fastener, 215-bolt, 216-gap; 217- flat ring, 218- opening and closing rod, 219- threaded sleeve; 220-plug end, 221-locking hole; 230 - connecting plate, 231 - plug-in portion, 232 - second connecting portion, 233 - strip groove, 234 - second notch, 235 - central axis; 240-fixed shell, 241-half shell, 242-sink, 243-through slot; 250-chute; 261-single ear hole, 262-double ear holes, 263-rotating shaft, 264-nut; 300 - U-shaped cover, 310 - horizontal bottom surface, 311 - second notch, 320 - U-shaped inner side surface, 330 - U-shaped outer side surface, 340 - top surface, 350 - vertical side surface; 400-buffer layer, 500-anti-collision protection pad, 600-wrapping layer, 700-seat belt. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention. The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment 1: like Figures 1 to 3 As shown, the present application provides a quick-release seat safety structure, wherein the seat is provided with a safety belt 700, and the safety structure comprises: The seat cushion base plate 100 is a plate-like structure provided on the seat for bearing weight. A hollow knot is provided at the front end of the seat cushion base plate 100 between the two legs to form a first connecting portion 110. The first connecting portion 110 is provided with a plurality of female buckles 180 at different distances from the seat back. The safety belt connecting device 200 comprises a connecting end 210 and a plug-in end 220 fixedly connected to the connecting end 210, wherein the connecting end 210 is provided with a slide groove 250 that can slide freely on the safety belt, and the plug-in end 220 is provided with a lock hole 221 that is detachably plugged and connected to the female buckle 180; A protective cover, installed around the first connecting portion 110, for surrounding and protecting the safety belt connecting device 200 connected to the first connecting portion 110; and The cushion layer 400 wraps the seat cushion substrate 100 to form a seat cushion.

[0031] A quick-release seat safety structure of the present application can be installed on the seat or cushion of a vehicle, transportation vehicle or amusement facility, and can also be manufactured in one piece with the seat or cushion of a vehicle, transportation vehicle, amusement facility, etc. that protects the safety of pregnant women and children. By setting the seat cushion substrate 100 to a plate-like structure, the structural strength of the safety structure of the present application can be improved to cope with sudden high-intensity impact forces, thereby providing better protection for the user; the present invention sets the position between the two legs at the front end of the seat cushion substrate 100 to be a hollow structure to form a first connecting portion 110, and sets a plurality of female buckles 180 of the seat belt on the first connecting portion 110, and selectively connects the seat belt connecting device 200 installed on the seat belt 700 to the female buckle 180, so as to achieve rapid installation and disassembly of the seat belt connecting device 200 and the first connecting portion 110, thereby improving ease of use; the hollow structure provides space for the connection and fixation of the seat belt connecting device 200. After fastening the seat belt in accordance with existing technical specifications, the seat belt knot located on the user's abdomen is fixed to the first connecting portion 110 between the user's thighs through the seat belt connecting device 200. When a safety accident or braking occurs, the contraction force of the seat belt will all act on the user's thighs, which can avoid the user's abdomen being compressed when the seat belt contracts and causing discomfort; by installing a protective cover around the first connecting part 110, the seat belt connecting device 200 connected to the first connecting part 110 can be surrounded and protected, so that the seat belt connecting device 200 is buried inside the seat cushion body, preventing the seat belt connecting device 200 from causing secondary injuries such as collision to the user's thigh roots when braking or encountering a traffic accident, thereby further ensuring safety; by laying a buffer layer 400 on the seat cushion base plate 100, on the one hand, the user's riding comfort can be improved, and on the other hand, the protective cover can be buried to avoid the protective cover causing secondary injuries such as bumps to the user; the present application is not only easy to operate and has a stable structure, but also takes comfort into account while ensuring safety and reliability.

[0032] In this embodiment, the female buckle 180 can adopt the female buckle 180 commonly used in the prior art, such as the universal safety belt female buckle 180 on the car seat.

[0033] In some embodiments, an anti-collision protection pad 500 is also provided. The anti-collision protection pad 500 is provided on the seat cushion base plate 100 and is located on the side of the first connection part 110 close to the user, and is used to constrain the safety belt 700 so that the safety belt 700 forms a surface contact with the user's thigh root and lower abdomen bottom, thereby preventing the side of the safety belt 700 from cutting the user. The safety belt connected between the thighs is adjusted by the anti-collision protection pad 500 so that the middle part of the safety belt forms a surface contact with the user's thigh root and lower abdomen bottom, which can not only improve the comfort of the user, but also prevent the side of the safety belt from cutting the user.

[0034] like Figures 1 to 3 As shown, the anti-collision protection pad 500 is arranged on the seat cushion base plate 100 at a position on the side of the first connecting part 110 close to the user. The anti-collision protection pad 500 is a cut-resistant layer made of elastic materials such as high-density fabric layer, silicone, rubber, sponge, etc., and is generally a flexible pad. When in use, it is manually placed between the seat belt and the human body. While it plays an isolation and buffering role, it can also change the contact posture between the seat belt and the human body, and change the linear contact state between the seat belt and the human abdomen to surface contact, which greatly improves safety. When the user sits on the seat, the human abdomen and thighs are in a vertical state with a small folding angle. The applicant found in the research test that Figure 4 As shown, when the safety belt is connected to the first connecting part 110, the safety belt that restrains the thigh root is in surface contact with the thigh, but the safety belt is in side contact with the abdomen of the human body. When dealing with a large impact force, although the safety belt has a good restraint on the thigh at this time, the side of the safety belt will cause or strangle the abdomen of the human body, which is not only less comfortable, but also has safety hazards. Figure 5 and Figure 6 As shown, the present invention provides an anti-collision protection pad 500 and utilizes an anti-cutting layer made of elastic materials such as a high-density fabric layer, silicone, rubber, sponge, etc. to fill the user's groin, change the posture of the safety belt, and make the middle part of the safety belt form surface contact with the user's thigh root and lower abdomen, while the side of the safety belt is no longer in direct contact with the user, and the tension of the safety belt in the event of a traffic accident or braking is transferred to the anti-collision protection pad 500. The user is protected by the anti-collision protection pad 500 to prevent the side of the safety belt from cutting or impacting the user, while also improving the user's comfort.

[0035] It should be noted that, considering the working principle of the anti-collision protection pad 500 of the present invention, the anti-collision protection pad 500 of the present invention can be any cushion layer with a buffering function, and is not subjected to tension but only to pressure. Therefore, the specific position and shape setting can be relatively arbitrary, and can be fixed on the seat cushion base 100, or fixed on the external covering layer, or can be movably set, or directly covered on the safety belt. When in use, the anti-collision protection pad 500 can be slid to the thigh root restraint area. Figure 5 In the embodiment, the anti-collision protection pad 500 is in the form of two long strips, which are respectively located between the safety belt and the root of the thigh; Figure 6 In the figure, the anti-collision protection pad 500 is approximately triangular in shape, covering the entire abdomen of the user, and can restrain the safety belt at the root of the thigh to prevent the side of the safety belt from cutting or strangling the user's abdomen.

[0036] like Figure 2 and Figure 3 As shown, the first connecting portion 110 is a first protrusion 120 that is arranged at the front end of the cushion base plate 100 and is located between the two legs and is upwardly raised. The first protrusion 120 is provided with a first notch 121 for installing and exposing the female buckle 180. An upward second protrusion 130 is arranged at a position on the outside of the two legs of the cushion base plate 100. A clamping sleeve 140 is installed under the second protrusion 130. The clamping sleeve 140 is a profile, and its two ends are respectively fixed to the bottom of the cushion base plate 100 and the end of the second protrusion 130, forming a hollow structure under the second protrusion. The present invention arranges a first protrusion 120 and a second protrusion 130 on the seat cushion base plate 100. On the one hand, a hollow structure can be formed on the seat cushion base plate 100 by arranging the protrusions, thereby providing space for the connection and fixation of the safety belt connecting device 200 and the installation of the connecting assembly. On the other hand, a hollow structure can be formed by arranging the protrusions without increasing the thickness of the seat cushion base plate 100, thereby reducing the space occupied by the seat cushion base plate 100 and significantly reducing the weight of the safety structure. While ensuring the structural strength, a lightweight design is achieved, making it easy to carry.

[0037] A length-adjustable connection component is installed in the hollow structure formed by the second protrusion 130 and the ferrule 140, and the connection component can pass through the rear of the cushion base plate 100 and be detachably connected to the ISOFIX interface of the child safety seat fixing system. Specifically, the connection component is a safety structure fixing belt or an ISOFIX hard interface connector of the child safety seat fixing system, and one end of the safety structure fixing belt passing through the cushion base plate 100 is provided with a hook that can be detachably connected to the ISOFIX interface of the child safety seat fixing system; one end of the ISOFIX hard interface connector of the child safety seat fixing system passing through the safety structure is provided with a buckle that can be detachably connected to the ISOFIX interface of the child safety seat fixing system. By setting the connection component as a safety structure fixing belt or an ISOFIX hard interface connector of the child safety seat fixing system, the use specifications of different countries can be met to connect the safety structure of the present application with the ISOFIX interface of the child safety seat fixing system on the rear seat, so that users whose abdomens cannot be compressed can sit in the rear seat, providing them with better safety protection; and the length of the connection component can be adjusted, so that the safety structure of the present application can be applied to seats of different sizes. When the connecting component is set as a safety structure fixing belt, the hook on the safety structure fixing belt or the buckle on the ISOFIX hard interface connector can be connected to an external fixing belt with a buckle, the fixing belt is tied to the backrest of the front seat, and the buckle is fixed, thereby fixing the safety structure to the front seat to provide protection for the user driving or sitting in the front row.

[0038] like Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the protective cover is a U-shaped cover 300 including a horizontal bottom surface 310, a U-shaped inner side surface 320, a U-shaped outer side surface 330 and a top surface 340. The height of the bottom of the horizontal bottom surface 310 is the same as the height of the first protrusion 120. The horizontal bottom surface 310 is formed integrally with the substrate or manufactured separately, and then installed on the first protrusion 120 by welding, bolts, rivets, etc. and tightly fits with the top of the first protrusion 120. The shape and size of the horizontal bottom surface 310 are adapted to the top of the first protrusion 120, and the horizontal bottom surface 310 is provided with a second notch 311311 that matches the position and size of the female buckle 180. During installation, the second notch 311311 of the horizontal bottom surface 310 is aligned with the first notch 121 at the top of the first protrusion 120 and then fixed, so that the safety belt connection device 200 can pass through the second notch 311311 in the U-shaped cover 300 and connect with the female buckle 180 in the first notch 121, so that the U-shaped inner side surface 320 and the U-shaped outer side surface 330 of the U-shaped cover 300 can surround and protect the safety belt connection device 200 connected to the first protrusion 120. The depth of the U-shaped inner side surface 320 of the U-shaped cover 300 of the present application is greater than or slightly greater than (for example, greater than about 0.2-0.5 cm) the height of the safety belt connection device 200, so that the U-shaped cover 300 can completely cover the safety belt connection device 200, avoiding the safety belt connection device 200 from causing secondary injuries such as impact on the thigh root of the user.

[0039] like Figure 7 and Figure 8 As shown, the thickness of each surface of the U-shaped cover 300 is 0.4-5.0 mm, and the bottom of the U-shaped outer side surface 330 is fixed on the seat cushion base plate 100 and is located on both sides of the bottom of the first protrusion 120. The U-shaped inner side surface 320 and the U-shaped outer side surface 330 are both three-sided gradually convex shapes, specifically, as shown in FIG. Figure 8 As shown, the top of the U-shaped inner side surface 320 is inclined toward the U-shaped outer side surface 330, and the angle between the top of the U-shaped inner side surface 320 and the horizontal bottom surface 310 is α The top of the U-shaped outer side surface 330 is inclined toward the direction of the U-shaped inner side surface 320, and the angle with the cushion substrate 100 βThe U-shaped inner side surface 320 and the U-shaped outer side surface 330 are set to be sloped. On the one hand, the stability of the U-shaped cover 300 can be improved, so that the U-shaped cover 300 can wrap the safety belt connection device 200 in an all-round and stable manner. On the other hand, the impact pressure of the U-shaped cover 300 can be released and alleviated. When a vehicle, transportation vehicle or amusement facility collides, the user can avoid a head-on impact with the U-shaped cover 300, thereby protecting the user's safety. At the same time, the installation and operation space of the safety belt connection device 200 can be increased, and the installation and removal of the safety belt connection device 200 can be facilitated. After experimental verification, by selecting the angle range of the above-mentioned U-shaped inner side surface 320 and the U-shaped outer side surface 330, under the condition of the same amount of material, the strength of the U-shaped cover 300 of the present invention is increased by about 10%-20%. By increasing the angle of the U-shaped outer side surface 330 β The angle is set to 100°-120°, so that the frontal impact force can be partially removed by sliding upward, which can remove about 20-30% of the impact force, effectively protecting the safety of the user and avoiding the damage to the user caused by the safety belt connection device 200 set on the seat cushion when responding to the impact (mainly the damage to the thigh root). The connection between the top surface 340 and the U-shaped inner side surface 320 and the U-shaped outer side surface 330 is set to a smooth rounded corner connection, which can further release and alleviate the impact pressure of the U-shaped cover 300 and avoid bumping the user.

[0040] As a preferred embodiment, the seat cushion substrate 100, U-shaped cover 300 and seat belt connecting device 200 are all made of high-strength metal, high-strength alloy, high-strength carbon fiber, high-strength plastic, high-strength nylon, high-strength fiberglass, high-strength ceramic, carbon nanomaterials, super-strong polymer materials, composite materials, graphene or polymer materials, and the holes and grooves on the horizontal bottom surface 310 of the seat cushion substrate 100 and the U-shaped cover 300 are made by laser cutting, water cutting, plasma cutting, wire cutting or stamping to further improve the structural strength of the safety structure of the present application.

[0041] In some embodiments, Fig. 9As shown, the connecting end 210 includes a fixing part 211 and a movable part 212, the fixing part 211 and the plug-in end 220 are integrally manufactured and arranged, the movable part 212 is detachably fixedly connected to the fixing part 211, and a gap 216 forming a slide groove is provided between the movable part 212 and the fixing part 211; specifically, the plug-in end 220 can be a rectangular plug-in piece, and a lock hole 221 is provided on the plug-in piece, and the shape of the lock hole 221 can be circular or elliptical, triangular or other special shapes; the connecting end 210 includes a fixing part 211 and a movable part 212, the fixing part 211 and the plug-in end 220 are integrally manufactured and arranged, and the fixing part 211 and the movable part 212 themselves can be It is a strip-shaped structural member, the setting direction of the fixing member 211 is perpendicular to the plug-in end 220, and ear plates 213 protruding away from the plug-in end 220 are respectively provided at both ends of the fixing member 211, and the movable member 212 is fixed to the ear plate 213 by a transverse fastener 214. By setting the ear plate 213, a gap 216 for the seat belt to pass freely is generated between the movable member 212 and the fixing member 211, so that the seat belt connecting device can be freely slidably installed on the seat belt; when the seat belt connecting device needs to be fixed to the seat belt or removed from the seat belt, the fixing member 211 and the movable member 212 can be disassembled by removing the fasteners 214 at both ends, which is convenient for fixing and removing the seat belt connecting device.

[0042] In some embodiments, Figure 1 As shown, the female buckle 180 is fixed in the first connecting portion 110 , so an opening should be provided at a corresponding position on the first connecting portion 110 to expose the plug-in interface of the female buckle 180 .

[0043] When the safety belt connection device 200 of the present application is not in use, the connection end 210 remains connected to the safety belt on the seat. When in use, after the user sits on the safety structure, the plug end 220 of the safety belt connection device 200 is fixed to the female buckle 180 of the first connection part 110, and the female buckle 180 at a suitable position is selected to fix the plug end 220 according to the user's abdominal size and body shape, so that the connection position between the plug end 220 and the first connection part 110 can be adjusted. The installation position of the safety belt connection device 200 can be adjusted according to the abdominal size and body shape of different users, so that the safety belt on the vehicle or amusement facility is tied to the position as close to the user's thigh root as possible, and the displacement of the user's forward impact when braking or an accident occurs is reduced as much as possible, so that the safety belt generates a binding force in time, and the airbag can be triggered to open in time when a serious accident occurs, which improves the safety of the safety structure of the present application and also improves the comfort of the user when using the safety structure. After use, the plug end 220 can be removed from the connection.

[0044] As a preferred embodiment, Figure 1As shown, the middle and both sides of the seat cushion substrate 100 are set as a hollow structure, which can greatly reduce the weight of the seat cushion substrate 100 while ensuring the structural strength of the seat cushion substrate 100, making the safety structure of the present application easy to carry and use.

[0045] As a preferred embodiment, the seat cushion substrate 100 is made of materials with high structural strength, such as metal, alloy, high-strength carbon fiber, high-strength plastic, high-strength nylon, high-strength fiberglass, high-strength ceramic, carbon nanomaterial, super-strong polymer material, composite material, graphene or polymer material. Through the high-strength seat cushion substrate 100, the safety structure of the present application can withstand the impact force caused by traffic accidents or braking, and provide stable safety protection for users whose abdomen cannot be under pressure.

[0046] As a preferred embodiment, the ferrule 140 is made of plastic, which can provide sufficient supporting strength on the one hand, and can also reduce the weight of the safety structure on the other hand to meet the lightweight design.

[0047] As a preferred embodiment, the buffer layer 400 is made of high-density fabric, sponge, rubber pad, sponge pad, silicone pad or other buffer materials, which can improve the riding comfort of the user on the one hand, and bury the protective cover to prevent the protective cover from causing secondary injuries such as bumps to the user on the other hand.

[0048] As a preferred embodiment, Figure 2 and Figure 3 As shown, a wrapping layer 600 is further provided outside the buffer layer 400 , and the wrapping layer 600 is made of a flexible material such as cloth, etc., to further improve the comfort of the user.

[0049] As a preferred embodiment, a height adjustment pad is installed under the cushion base plate 100 through a connecting member, and the connecting member is a connecting hole, a connecting groove or a connecting block provided on the cushion base plate. In this embodiment, Figure 1 As shown, the seat cushion base plate 100 is provided with a plurality of connection holes 170, and a height adjustment pad can be installed under the seat cushion base plate 100 through the connection holes 170. The safety structure of the present invention can choose whether to install a height adjustment pad according to the height of different users, and select a height adjustment pad of appropriate thickness. Therefore, adults and children of different heights can use the safety structure of the present application.

[0050] Embodiment 2: The other parts are the same as those in the first embodiment, except that the structure of the safety belt connecting device 200 is different. In this embodiment, Fig.10As shown, the connecting end 210 includes a fixing member 211 and a movable member 212, and the fixing member 211 is integrally manufactured and arranged with the plug-in end 220. The fixing member 211 and the movable member 212 themselves can be strip-shaped structural members, and the setting direction of the fixing member 211 is perpendicular to the plug-in end 220. Ear plates 213 protruding away from the plug-in end 220 are respectively arranged at both ends of the fixing member 211. The movable member 212 is fixed to the ear plate 213 by longitudinal bolts 215. By setting the ear plate 213, a gap 216 for the safety belt to pass freely is generated between the movable member 212 and the fixing member 211, so that the safety belt connecting device can be freely slidably installed on the safety belt.

[0051] Embodiment three: The other parts are the same as those in the first embodiment, except that the structure of the safety belt connecting device 200 is different. In this embodiment, Fig.11 As shown, the connecting end 210 is a flat ring 217, the inner diameter of the flat ring 217 forms a slide groove 250, and one side of the flat ring 217 is provided with a first notch ( Fig.11 The position occupied by the opening and closing rod 218 in the middle), the opening and closing rod 218 is hinged on the flat ring 217 at one end of the first notch, and the other end of the opening and closing rod 218 is detachably connected to the flat ring 217 at the other end of the first notch through a threaded sleeve 219, forming a lock in the slide groove 250 where the safety belt is located. Specifically, the threaded sleeve 219 is provided with an internal thread, and the other end of the first notch is provided with an external thread; in this embodiment, for example, one end of the threaded sleeve 219 is sleeved on the opening and closing rod 218, which can be threadedly matched with the opening and closing rod 218, or it can be matched with the gap 216; when it is matched with the gap 216, generally speaking, a limiting structure should also be provided on the opening and closing rod 218 ( Fig.11 ), such as a limit block, to prevent the threaded sleeve 219 from slipping off, so as to improve the reliability during use.

[0052] Embodiment 4: The other parts are the same as those in the first embodiment, except that the structure of the safety belt connecting device 200 is different. In this embodiment, Fig.12 and Fig.13 As shown, the safety belt connection device includes two connecting plates 230 and a fixed shell 240. One end of the connecting plate 230 is a plug-in portion 231, and the other end is a second connecting portion 232. The plug-in portion 231 is provided with a lock hole 221, and the second connecting portion 232 is provided with a strip groove 233. The strip groove 233 is provided with a second notch 234 for the safety belt to enter and exit. After the two connecting plates 230 are attached, they are fixed together by the fixed shell 240. After the two connecting plates 230 are attached, the lock holes 221 are aligned and overlapped, and the second notches 234 on the strip groove 233 are staggered. Fig.13The arrow direction is the plugging direction. As a preferred embodiment, the strip groove 233 is perpendicular to the plugging direction.

[0053] Exemplarily, the center line connecting the lock hole 221 and the strip groove 233 is defined as the central axis 235. Except for the second notch 234, the connecting plate 230 is symmetrically arranged with respect to the central axis 235. The two connecting plates 230 have exactly the same shape and size. When fitting together, one of the connecting plates 230 is flipped 180 degrees so that the two second notches 234 are staggered.

[0054] Exemplarily, in order to more conveniently fix the two plug-in boards, the fixing shell 240 is composed of two half shells 241 that are detachably connected. The two half shells 241 are both provided with a recessed groove 242 that matches the second connecting portion 232 of the connecting plate 230 and a through groove 243 that matches the strip groove 233. Generally speaking, the two half shells 241 are both plastic shells with a certain deformation ability; therefore, they can be detachably connected by means including but not limited to snaps, pins or interference fits to facilitate disassembly.

[0055] This embodiment solves the problem of quick connection between the safety belt and the safety belt connecting device 200 and the problem of reliability after connection by fitting two staggered connecting plates 230. After connection in the manner of this embodiment, the force of the safety belt is completely converted into the force of the connecting plate 230 body, which has good reliability and high safety. At the same time, there is no bolt or screw structure, so it can be installed by hand without being restricted by tools, and has strong practicality. The fixed shell 240 that fits the two connecting plates 230 together is not subjected to force when the safety belt is subjected to impact force. In addition, since the fixed shell 240 is not subjected to the impact force of the safety belt, it can be made of plastic parts and can adopt an easy-to-disassemble structure design, such as common structures such as buckles and plastic interference fits, which has good safety and high stability. This design cleverly avoids the situation in which the disassembly structure in other designs is subjected to the impact force of the safety belt, making the present invention have very high safety and practicality.

[0056] Embodiment five: In this embodiment, except for the cushion base plate 100, other parts are the same as those in the first embodiment. Figures 14 to 16 As shown, the seat cushion base plate 100 is a hollow structural plate. The hollow structure at the front end of the seat cushion base plate 100 located between the two legs forms a first connecting portion 110. The hollow structure of the seat cushion base plate 100 located on the outside of the two legs forms an installation groove 150 for installing the safety structure fixing belt. On the one hand, the hollow structural plate can provide space for the connection and fixation of the safety belt connecting device 200 and the installation of the safety structure fixing belt. On the other hand, it can greatly reduce the weight of the seat cushion base plate 100, and realizes a lightweight design while ensuring the structural strength, so that the safety structure of the present application is easy to carry and convenient to use.

[0057] As a preferred embodiment, the hollow structural plate is provided with a plurality of cushion blocks 160. The provision of the cushion blocks 160 can not only limit the installation space and movement range of the safety structure fixing belt, but more importantly, can also improve the structural strength of the safety structure and ensure its safety performance.

[0058] like Fig.17 and Fig.18 As shown, the protective cover is a U-shaped cover 300 including a horizontal bottom surface 310, a U-shaped inner side surface 320, a U-shaped outer side surface 330, a vertical side surface 350 and a top surface 340. The horizontal bottom surface 310 is provided with two long grooves corresponding to the card slots on the first connecting portion 110, and the corresponding plug-in end 220 of the safety belt connecting device 200 is a buckle (not shown in the figure); the U-shaped inner side surface 320 and the U-shaped outer side surface 330 are also inclined, and the setting method is the same as that of the first embodiment. The horizontal bottom surface 310 and the vertical side surface 350 are respectively The horizontal bottom surface 310 is installed on the top and front wall 114 of the first connection part 110 by welding, bolts, rivets, etc. The shape and size of the horizontal bottom surface 310 are adapted to the top of the first connection part 110, and it is tightly fitted with the top of the first connection part 110, so that the safety belt connection device 200 passes through the horizontal bottom surface 310 in the U-shaped cover 300 and is connected to the first connection part 110, so that the U-shaped inner side surface 320 and the U-shaped outer side surface 330 surround and protect the safety belt connection device 200 connected to the first connection part 110. The vertical side surface 350 is arranged at one end of the horizontal bottom surface 310, and the height of the vertical side surface 350 is adapted to the height of the front wall 114 of the first connection part 110 and is fixed on the front wall 114 of the first connection part 110, so that the connection between the U-shaped cover 300 and the first connection part 110 is more stable, thereby improving the strength and safety performance of the safety structure. The other parts of the U-shaped cover 300 are the same as those in the first embodiment.

[0059] Embodiment six: The other parts are the same as those in the first embodiment, except that the structure of the safety belt connecting device 200 is different. In this embodiment, Fig.19As shown, the connecting end 210 includes a fixing member 211 and a movable member 212, and the fixing member 211 is integrally manufactured and arranged with the plug-in end 220. The fixing member 211 and the movable member 212 can be strip-shaped structural members. The setting direction of the fixing member 211 is perpendicular to the plug-in end 220. Single ear holes 261 are respectively provided at both ends of the fixing member 211, and double ear holes 262 are respectively provided at both ends of the movable member 212. The double ear holes 262 at one end of the movable member 212 are installed on the single ear hole 261 at one end of the fixing member 211 through a rotating shaft 263, and the double ear holes 262 at the other end of the movable member 212 are detachably connected to the single ear hole 261 at the other end of the fixing member 211 through a fastener 214. A gap 216 for the safety belt to pass freely is generated between the movable member 212 and the fixing member 211, so that the safety belt connecting device 200 can be freely slidably installed on the safety belt.

[0060] Embodiment seven: This embodiment is the same as the first embodiment, except that the structure of the connection end 210 of the safety belt connection device 200 is different. Fig. 20 As shown, the connecting end 210 includes a fixing member 211 and a movable member 212, and the fixing member 211 is integrally manufactured and arranged with the plug-in end 220. The fixing member 211 and the movable member 212 can be arched members of a strip structure. The setting direction of the fixing member 211 is perpendicular to the plug-in end 220. Two ear holes 262 are respectively provided at both ends of the fixing member 211, and single ear holes 261 are respectively provided at both ends of the movable member 212. The single ear hole 261 at one end of the movable member 212 is installed on the double ear holes 262 at one end of the fixing member 211 through a rotating shaft 263, and the single ear hole 261 at the other end of the movable member 212 is detachably connected to the double ear holes 262 at the other end of the fixing member 211 through a fastener 214. A gap 216 for the safety belt to pass freely is generated between the movable member 212 and the fixing member 211, so that the safety belt connecting device 200 can be freely slidably installed on the safety belt.

[0061] Embodiment eight: This embodiment is the same as the first embodiment, except that the structure of the connection end 210 of the safety belt connection device 200 is different. Fig.21As shown, the connecting end 210 includes a fixing part 211, a movable part 212 and a nut 264. The fixing part 211 is integrally manufactured and arranged with the plug-in end 220. The fixing part 211 and the movable part 212 are semicircular cylindrical parts. The setting direction of the fixing part 211 is perpendicular to the plug-in end 220. One end of the fixing part 211 and the movable part 212 are connected by a rotating shaft 263, and the other end is provided with a half thread. When the fixing part 211 and the movable part 212 are tightly together, they form a complete cylinder. The two half threads form a complete thread matching the nut 264. A gap 216 is reserved in the middle of the cylinder for the safety belt to pass through. The other end of the fixing part 211 and the movable part 212 can be detachably fastened together through the nut 264.

[0062] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A quick-release seat safety structure, the seat comprising a seat belt, characterized in that: The safety structure includes: The seat cushion base plate is a plate-like structure arranged on the seat and used to bear weight. A hollow structure is arranged at the front end of the seat cushion base plate between the two legs to form a connecting portion. The connecting portion is provided with a plurality of female buckles at different distances from the seat back. A safety belt connecting device, comprising a connecting end and a plug-in end fixedly connected to the connecting end, wherein the connecting end is provided with a slide groove capable of sliding freely on the safety belt, and the plug-in end is provided with a lock hole detachably plug-connected to the female buckle; A protective cover installed around the connecting portion and used to surround and protect a safety belt connecting device connected to the connecting portion; and The cushion layer wraps the cushion substrate and the protective cover to form a cushion.

2. A quick-release seat safety structure according to claim 1, characterized in that: The connecting end comprises a fixing part and a movable part. The fixing part is integrally manufactured and arranged with the plug-in end. The movable part is detachably fixedly connected to the fixing part, and a gap forming a slide groove is provided between the movable part and the fixing part.

3. The quick-release seat safety structure according to claim 1, characterized in that: The connecting end is a flat ring, the inner diameter of which forms a sliding groove, a first notch is opened on one side of the flat ring, an opening and closing rod is hinged on the flat ring at one end of the first notch, and the other end of the opening and closing rod is detachably connected to the flat ring at the other end of the first notch through a threaded sleeve.

4. The quick-release seat safety structure according to claim 1, characterized in that: The safety belt connecting device includes two connecting plates and a fixed shell, one end of the connecting plate is a plug-in part, and the other end is a connecting part, the plug-in part is provided with a locking hole, the connecting part is provided with a strip groove, and the strip groove is provided with a second notch for the safety belt to enter and exit. After the two connecting plates are fitted together, they are fixed together by the fixed shell. After the two connecting plates are fitted together, the locking holes are aligned and overlapped, and the second notches on the strip grooves are staggered.

5. The quick-release seat safety structure according to claim 1, characterized in that: The two connecting plates have exactly the same shape and size. When fitting together, one of the connecting plates is turned over 180 degrees so that the two second notches are staggered.

6. The quick-release seat safety structure according to claim 1, characterized in that: The fixed shell is composed of two half shells connected detachably, and both half shells are provided with a sink groove matching the connecting portion of the connecting plate and a through groove matching the strip groove.

7. A quick-release seat safety structure according to any one of claims 1 to 6, characterized in that: The connecting portion is a first protrusion arranged at the front end of the seat cushion base plate and located between the two legs.

8. The quick-release seat safety structure according to claim 7, characterized in that: The seat cushion base is provided with a second upward protrusion at the position outside the two legs, and a clamping sleeve is installed under the second protrusion. The two ends of the clamping sleeve are respectively fixed to the bottom of the seat cushion base and the end of the second protrusion, forming a hollow structure under the second protrusion.

9. The quick-release seat safety structure according to claim 8, characterized in that: A length-adjustable connection component is installed in the hollow structure formed by the second protrusion and the clamping sleeve. The connection component can pass through the rear of the safety structure and be detachably connected to the ISOFIX interface of the child safety seat fixing system.

10. The quick-release seat safety structure according to claim 9, characterized in that: The connecting component is an ISOFIX hard interface connector of a safety structure fixing belt or a child safety seat fixing system. The end of the safety structure fixing belt or the ISOFIX hard interface connector of the child safety seat fixing system that passes through the seat cushion base plate is respectively provided with a hook or a buckle that can be detachably connected to the ISOFIX interface of the child safety seat fixing system.

11. A quick-release seat safety structure according to any one of claims 1 to 6, characterized in that: It also includes an anti-collision protection pad, which is arranged on the seat cushion base at the side of the connecting part close to the user, and is used to restrain the safety belt so that the safety belt forms surface contact with the user's thigh root and lower abdomen bottom to prevent the side of the safety belt from cutting the user.

12. A quick-release seat safety structure according to any one of claims 1 to 6, characterized in that: A height adjustment pad is installed below the seat cushion base plate through a connecting piece, and the connecting piece is a connecting hole, a connecting groove or a connecting block arranged on the seat cushion base plate.

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