Hook type safety structure for preventing abdomen from being pressed on seat

Abstract

The invention provides a hook type safety structure for preventing an abdomen from being pressed on a seat. The hook type safety structure comprises a seat cushion base plate, a safety belt connecting mechanism, a protection cover, a buffer layer, an anti-collision protection pad and a seat cushion tail filling block. The cushion base plate is arranged to be of a plate-shaped structure, so that the structural strength can be improved; the safety belt connecting mechanism is mounted on the mounting seat between the two legs, so that the safety belt positioned at the abdomen can be fixed between the thighs when the safety belt is normally tied, and the abdomen of a user is prevented from being pressed; the hook and the locking device can lock the safety belt, so that the safety risk caused by separation of the safety belt is avoided, and the safety performance is improved; by arranging the protective cover, the safety belt connecting mechanism can be prevented from causing secondary injury to a user; by arranging an anti-collision protection pad, a user can be prevented from being cut by the side edge of the safety belt; and by arranging the tail filling block, the user can be kept close to the hook as far as possible, the forward impact displacement of the user during braking or accidents is reduced as far as possible, and the safety performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of safety seats, in particular to a hook-type safety structure for preventing the abdomen from being compressed on a seat. 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 CN206765977U discloses a safety belt fixing device for pregnant women, including a strap, a buckle, and a lock, wherein the strap and the buckle are fixed together, and the lock is worn on the strap. By adding a fixing point to the safety belt fixing device for pregnant women, the fixed position of the safety belt on the user is converted to the fixing of the half side body and one thigh of the user, and it is very convenient to insert and release the safety belt. The barb on the lock can prevent the safety belt from sliding out of the safety belt fixing device for pregnant women when the user moves forward, causing functional failure. However, the safety belt fixing device of this scheme is made of hard material and protrudes and is exposed between the thighs of the user. When braking or encountering a traffic accident, the perineum and thigh root of the pregnant woman are very likely to hit the lock buckle to cause secondary injury; and although the lock buckle is provided with a barb, the lock buckle is still a semi-open structure. When the user moves forward by a large amplitude, the safety belt will still be detached from the lock buckle and the barb, which poses a great safety hazard.

[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, due to the limited activities of pregnant women, the safety belt for pregnant women provided by this scheme is not only difficult to install and disassemble, but also only made of textiles and safety belts to make a safety cushion, which is easy to cause safety hazards due to the lack of protection of high-strength structural parts. 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 to provide a safety structure for preventing abdominal compression that can fix the safety belt between the thighs of the user and will not come off, and has high-strength support and protection, will not cause secondary injuries, is safe and stable, and is easy to operate, and is suitable for installation on front and rear seats. The hook-type safety structure for preventing abdominal compression on a seat provided in the present application adopts the following technical solution: A hook-type safety structure for preventing the abdomen from being compressed on a seat, 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, and the front end of the seat cushion base plate is located between the two legs and is configured as a hollow structure to form a mounting seat; A safety belt connection mechanism, used to connect the safety belt, comprising a hook mounted on the mounting seat and a locking device capable of locking with the hook to prevent the safety belt from being separated; the hook is manufactured by a press bending, folding, roller bending or stretch bending process; A protective cover, mounted on the seat cushion base plate around the mounting seat or formed integrally with the seat cushion base plate, and used to surround and protect the safety belt connection mechanism; A cushioning layer wraps the cushion substrate and the protective cover to form a cushion; An anti-collision protection pad is arranged on the seat cushion base plate on the side of the mounting seat close to the user, and is used to constrain 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; and The cushion tail filling block is arranged between the rear end of the cushion base plate and the user's buttocks, so that the user's body is as close to the hook as possible.

[0007] Furthermore, the mounting seat is an upward first protrusion arranged on the seat cushion base between the two legs, and the hook includes a fixed end installed on one side of the first protrusion close to the middle of the seat cushion base and a connecting end close to the edge of the safety structure.

[0008] Furthermore, the locking device is a spring-type locking device, including a fixed sleeve installed in the mounting seat and a spring and a piston installed in the fixed sleeve, and the piston is installed on the top of the spring and can be locked with the connecting end.

[0009] Furthermore, an adjusting rod is provided on the piston, the rear end of the adjusting rod is fixed on the piston, and the front end extends out of the fixed sleeve and the safety structure. The fixed sleeve is provided with a vertical slide groove and a horizontal slide groove located at the bottom of the vertical slide groove, and the adjusting rod can slide in the vertical slide groove and the horizontal slide groove.

[0010] Furthermore, the protective cover is a U-shaped cover including a horizontal bottom surface, a vertical side surface, a U-shaped inner side surface, a U-shaped outer side surface and a top surface, and the horizontal bottom surface and the vertical side surface are both provided with mounting holes that cooperate with the safety belt connection mechanism, and the U-shaped inner side surface and the U-shaped outer side surface are both three-sided sloped and gradually raised shapes.

[0011] Furthermore, the seat cushion base plate is located outside the two legs and has a hollow structure to form an installation groove, in which a length-adjustable connecting component is installed. The connecting component can pass through the rear of the seat cushion base plate and be detachably connected to the ISOFIX interface of the child safety seat fixing system (International Standards Organization FIX).

[0012] Furthermore, the connecting component is a seat cushion fixing belt or an ISOFIX hard interface connecting part of a child safety seat fixing system, and one end of the seat cushion fixing belt or the ISOFIX hard interface connecting part of a 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.

[0013] Furthermore, the locking device is a thumbwheel type locking device, including a nut fixed in the mounting seat, a screw passing through the top of the mounting seat and threadedly connected to the nut, and a thumbwheel fixed on the screw. Turning the thumbwheel can lock the top of the screw with the connecting end.

[0014] Furthermore, the locking device is a barb locking device, comprising a barb installed on the connecting end, and the distance between the barb and the horizontal bottom surface of the U-shaped cover is greater than the thickness of the safety belt.

[0015] Furthermore, a plurality of hook connection holes are arranged at intervals along the front-to-back direction on the top of the mounting seat, and the fixed end of the hook can be detachably connected to any hook connection hole.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: By setting the seat cushion base plate to a plate-like structure, the structural strength of the safety structure of the present application can be improved, thereby providing better protection for users whose abdomens cannot be subjected to pressure; by setting the position between the two legs on the seat cushion base plate to a mounting seat with a hollow structure, and installing a seat belt connecting mechanism on the mounting seat to connect the seat belt, the seat belt knot located on the abdomen when normally fastened can be fixed to the mounting seat between the thighs of the user, thereby preventing the user's abdomen from being subjected to pressure; the hook and the locking device can lock the seat belt in the space formed by the seat belt connecting mechanism and the protective cover, and will not cause safety risks due to the seat belt detaching from the seat belt connecting mechanism, thereby improving the safety performance; by directly processing the hook into shape by using press bending, folding, roller bending or stretch bending technology instead of casting and polishing technology, the casting, polishing and other production links are reduced, which not only reduces the manufacturing cost and processing time, but also improves the product strength. By installing a protective cover around the mounting seat, the hook and the locking device can be buried in the middle of the main body of the safety structure to prevent the hook and the locking 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 of the seat belt forms a surface contact with the user's thigh root and the bottom of the lower abdomen, which can not only improve the user's comfort, but also prevent the side of the seat belt from cutting the user. By filling the rear end between the rear end of the seat cushion base and the user's buttocks, the user's body can be kept as close to the hook as possible, and the displacement of the user's forward impact during braking or an accident can be reduced as much as possible, so that the seat belt can generate restraint force in time and improve safety performance. 2. By setting the position of the seat cushion base between the thighs and the outer side of the thigh as a hollow structure to form a mounting seat and a mounting groove respectively, not only space is provided for the connection and fixation of the seat belt connection mechanism 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 structural strength. By setting the connecting component as a seat cushion 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 cushion to meet the usage specifications of different countries, and the length of the connecting component can be adjusted, so that the safety structure of the present application can be suitable for seats of different sizes; the hook on the seat cushion 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; and the seat cushion fixing belt is externally connected to a fixing belt with a buckle to fix the seat cushion to the backrest of the front seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the safety structure in the first embodiment; Figure 2 is a schematic diagram of a front cross-sectional structure of the safety structure in the first embodiment; Figure 3 is a schematic diagram of the side cross-section structure of the safety structure in the first embodiment; Figure 4 It is a schematic diagram of the safety belt connected to the mounting base; 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 structural diagram of the spring-type locking device in the first embodiment; Figure 8 yes Figure 4 Cross-section view in the AA direction; Fig. 9 It is a schematic diagram of the overall structure of the U-shaped cover in the first embodiment; Fig.10 is a front view structural schematic diagram of the U-shaped cover in the first embodiment; Fig.11 is a side view structural schematic diagram of the U-shaped cover in the first embodiment; Fig.12 is a schematic diagram of the side cross-section structure of the safety structure in the second embodiment; Fig.13 is a structural schematic diagram of the dial wheel type locking device in the second embodiment; Fig.14 is a schematic diagram of the side cross-section structure of the safety structure in the third embodiment; Fig.15 It is a schematic diagram of the side section structure of the safety structure in the fourth embodiment.

[0018] Fig.16 It is a specific schematic diagram of the locking device in the fifth embodiment.

[0019] Fig.17 It is a specific schematic diagram of the locking device in the sixth embodiment.

[0020] Fig.18 It is a schematic diagram of the integrated seat cushion substrate in the seventh embodiment.

[0021] Reference numerals: 100-seat cushion base plate, 110-mounting seat, 120-first protrusion, 130-second protrusion, 131-ISOFIX hard interface connector, 140-mounting groove, 150-seat cushion fixing belt, 160-through hole, 170-height adjustment pad mounting hole, 180-hook connecting hole; 200-seat belt connection mechanism; 210-bend hook, 211-fixed end, 212-connecting end, 220-locking device, 221-fixed sleeve, 2211-vertical slide groove, 2212-horizontal slide groove, 222-spring, 223-piston, 2231-adjusting rod, 224-nut, 225-screw rod, 226-push wheel, 227-barb, 228-threaded sleeve; 300 - U-shaped cover, 310 - horizontal bottom surface, 320 - vertical side surface, 330 - U-shaped inner side surface, 340 - U-shaped outer side surface, 350 - top surface, 360 - first mounting hole, 370 - second mounting hole, 380 - third mounting hole; 400-buffer layer, 500-anti-collision protection pad, 600-seat cushion tail filling block. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1: like Figures 1 to 3As shown, the present application provides a hook-type safety structure for preventing the abdomen from being compressed on a seat, the seat comprising a seat belt, and the safety structure comprising: The seat cushion base plate 100 is a plate-like structure provided on the seat for bearing weight. The front end of the seat cushion base plate 100 is located between the two legs and is a hollow structure forming a mounting seat 110; A safety belt connection mechanism 200, used to connect the safety belt, comprises a hook 210 mounted on the mounting seat 110 and a locking device 220 capable of locking with the hook 210 to prevent the safety belt from being separated, wherein the hook 210 is manufactured by a press bending, folding, roller bending or stretch bending process; A protective cover, installed around the mounting seat 110, for surrounding and protecting the safety belt connection mechanism 200; A cushion layer 400 wraps the seat cushion substrate 100 and the protective cover to form a seat cushion; The anti-collision protection pad 500 is arranged on the seat cushion base plate 100 and is located on the side of the mounting seat 110 close to the user, and is used to constrain the safety belt so that the safety belt forms a surface contact with the user's thigh root and lower abdomen to prevent the side of the safety belt from cutting the user; and The cushion rear filling block 600 is disposed between the rear end of the cushion base plate 100 and the user's buttocks, so that the user's body is as close to the hook 210 as possible.

[0026] The hook-type safety structure for preventing abdominal compression on a seat of the present application can be installed on a seat or cushion of a vehicle, transportation vehicle or amusement facility, or can be manufactured in one piece with the seat or cushion of a vehicle, transportation vehicle or amusement facility. By setting the seat cushion base plate 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 of the seat cushion base plate 100 between the two legs to be a hollow structure to form a mounting seat 110, which is used to install and fix the seat belt connecting mechanism 200. The seat belt connecting mechanism 200 is used to connect the seat belt. After fastening the seat belt in accordance with the existing technical specifications, the seat belt located on the user's abdomen is tied and placed on the hook 210 between the user's thighs through the seat belt connecting mechanism 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 compressing the user's abdomen when the seat belt contracts and causing discomfort, and prevent the seat belt from detaching from the seat belt connecting mechanism 200 by locking the hook 210 and the locking device 220, so as to improve the safety performance of the present application. The hook 210 of the present application is manufactured by press bending, folding, rolling bending or stretching bending processes. The press bending, folding, rolling bending or stretching bending processes replace the casting and polishing processes to directly process the hook 210 into shape, thereby reducing the production links such as casting and polishing, which not only reduces the manufacturing cost and processing time, but also improves the product strength. The present invention buries the hook 210 and the locking device 220 in the protective cover by providing a mounting protective cover around the mounting seat 110, thereby preventing the hook 210 from causing secondary damage such as collision to the user's thigh root when braking or encountering a traffic accident, thereby further ensuring safety; by laying a buffer layer 400 to wrap the seat cushion base 100 and the protective cover to form a seat cushion, it can not only prevent the protective cover from causing damage to the user, but also improve the riding comfort; by providing an anti-collision protection pad 500 at the end of the mounting seat 110, the safety belt connected between the thighs is adjusted so that the middle part of the safety belt forms a surface contact with the user's thigh root and the bottom of the lower abdomen, which can not only improve the user's comfort, but also prevent the side of the safety belt from cutting the user; by providing a tail filling block 600 between the rear end of the seat cushion base 100 and the user's buttocks, the user's body can be kept as close to the hook 210 as possible, and the displacement of the user's forward impact when braking or an accident occurs can be reduced as much as possible, so that the safety belt can generate binding force in time, thereby improving safety performance. The present invention is not only easy to operate and has a stable structure, but also takes comfort into consideration while ensuring safety and reliability.

[0027] like Figures 1 to 3As shown, the anti-collision protection pad 500 is arranged on the seat cushion base plate 100 on the side of the mounting seat 110 close to the user. The anti-collision protection pad 500 is a cut-resistant layer made of high-density fabric layer, silicone, rubber, sponge and other elastic materials. It is generally a flexible cushion layer. 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 mounting seat 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 responding to a large impact force, although the safety belt has a good restraint on the thigh, the side of the safety belt will cause or strangle the abdomen of the human body, which is not only less comfortable, but also poses a safety hazard. 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.

[0028] 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.

[0029] like Figure 1As shown, the cushion tail filling block 600 is made of materials such as rubber, silicone, sponge or hollow plastic parts, and the shape of the cushion tail filling block 600 matches the shape of the rear end of the safety structure and the user's buttocks. The cushion tail filling block 600 is installed between the rear end of the cushion base plate 100 and the user's buttocks. During use, the user's body will not move backward, and the user's thigh root can be kept as close to the safety belt connection mechanism 200 and the protective cover as possible, which can minimize the user's forward impact displacement when braking or an accident occurs, so that the safety belt can generate binding force in time, and the airbag can be triggered to open in time when a serious accident occurs, further improving the safety performance. As a preferred embodiment, the cushion tail filling block 600 is set in different sizes, and the user can choose cushion tail filling blocks 600 of different sizes according to their body shape to improve the use effect.

[0030] like Figure 2 and Figure 3 As shown, the mounting seat 110 is an upward first protrusion 120 disposed on the cushion base plate 100 between the legs, and the hook 210 includes a fixed end 211 mounted on the first protrusion 120 on one side close to the middle of the cushion base plate 100 and a connecting end 212 on one side close to the edge of the safety structure. The hook 210 is manufactured by a bending or folding process, and then fixed to the first protrusion 120 on one side close to the middle of the cushion base plate 100 by welding or rivets or screws and bolts. After fastening the seat belt according to the existing technical specifications, the hook 210 can fix the seat belt knot located on the abdomen of the user between the thighs of the user. In the event of a safety accident or braking, the contraction force of the seat belt will act entirely on the thighs of the user, which can avoid the discomfort caused by the compression of the abdomen of the user when the seat belt is contracted.

[0031] The locking device 220 is a spring-type locking device, comprising a fixed sleeve 221 installed in the mounting seat 110, and a spring 222 and a piston 223 installed in the fixed sleeve 221. The piston 223 is installed on the top of the spring 222 and can be locked with the connecting end 212. Figure 7 and Figure 8As shown, the fixed sleeve 221 is a cylindrical sleeve whose top is fixed on the inner side of the top of the mounting seat 110, and the piston 223 is a cylindrical piston 223 whose diameter matches the inner diameter of the fixed sleeve 221. The piston 223 can compress the spring 222 and move in the fixed sleeve 221 to achieve the locking and opening of the piston 223 and the connecting end 212, which is convenient for the connection and fixing of the safety belt and prevents the safety belt from being separated from the hook 210, thereby reducing safety hazards. The piston 223 is provided with an adjusting rod 2231, the rear end of which is fixed on the piston 223, and the front end of which extends out of the fixed sleeve 221 and the safety structure. The fixed sleeve 221 is provided with a vertical slide groove 2211 and a horizontal slide groove 2212 located at the bottom of the vertical slide groove 2211, and the adjusting rod 2231 can slide in the vertical slide groove 2211 and the horizontal slide groove 2212. By providing an adjustment rod 2231 extending out of the safety structure, the user can adjust the opening and locking of the safety belt connection mechanism 200 outside the seat cushion, thereby improving the convenience of operation; by providing a vertical slide groove 2211 and a horizontal slide groove 2212, not only can the movement of the piston 223 be facilitated, but the piston 223 can also be fixed to keep the safety belt connection mechanism 200 open, thereby facilitating the connection of the safety belt.

[0032] Specifically, when the safety belt connecting mechanism 200 is not connected to the safety belt, the spring 222 is in a normal state, and the top of the piston 223 contacts the connecting end 212 of the hook 210 to achieve locking; when the safety belt needs to be connected, the adjusting rod 2231 is pressed downward, and the adjusting rod 2231 slides downward in the vertical slide groove 2211, and drives the piston 223 to compress the spring 222 and move downward. When the adjusting rod 2231 slides to the bottom of the vertical slide groove 2211, the adjusting rod 2231 is rotated to slide into the horizontal slide groove 2212, and then the adjusting rod 2231 is released. At this time, the adjusting rod 2231 is fixed in the water The piston 223 is in the smooth groove 2212, and the connecting end 212 of the hook 210 is in a separated state; then the safety belt located on the abdomen of the user during normal connection is pulled forward through the opening of the piston 223 and the connecting end 212 and fixed on the hook 210, so as to realize the connection between the safety belt and the safety belt connecting mechanism 200; then, the adjusting rod 2231 is rotated in the opposite direction to make it slide into the vertical slide groove 2211, and then the adjusting rod 2231 is released, at which time the piston 223 will move upward under the elastic force of the spring 222 and contact the connecting end 212 of the hook 210, so as to realize the locking of the safety belt connecting mechanism 200. The safety belt will be locked in the space formed by the safety belt connecting mechanism 200 and the horizontal bottom surface 310 of the U-shaped cover 300, and there will be no safety risk caused by the safety belt being separated from the safety belt connecting mechanism 200, thereby improving the safety performance of the safety structure of the present invention.

[0033] like Figures 9 to 11As shown, the protective cover is a U-shaped cover 300 including a horizontal bottom surface 310, a vertical side surface 320, a U-shaped inner side surface 330, a U-shaped outer side surface 340 and a top surface 350. The horizontal bottom surface 310 and the vertical side surface 320 are respectively mounted on the top of the mounting seat 110 and the front wall of the cushion base plate 100 by welding, bolts, rivets, etc., and the horizontal bottom surface 310 and the vertical side surface 320 are both provided with mounting holes that cooperate with the seat belt connecting mechanism 200. Specifically, the horizontal bottom surface 310 is provided with a first mounting hole 360 ​​through which the fixed end 211 of the bent hook 210 passes and a second mounting hole 370 through which the piston 223 passes when moving, and the front wall of the cushion base plate 100 and the vertical side surface 320 of the U-shaped cover 300 are both provided with a third mounting hole 380 through which the adjusting rod 2231 passes and moves. The depth of the U-shaped inner side 330 of the present application is greater than or slightly greater than (0.2-0.5 cm greater) the height of the seat belt connection mechanism 200, so that the U-shaped cover 300 can completely cover the seat belt connection mechanism 200, preventing the seat belt connection mechanism 200 from extending out of the U-shaped cover 300 and causing secondary injuries such as collision to the user.

[0034] 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 340 is fixed on the cushion base plate 100 and is located on both sides of the bottom of the mounting seat 110. The U-shaped inner side surface 330 and the U-shaped outer side surface 340 are both three-sided gradually convex sloped shapes. Specifically, the top of the U-shaped inner side surface 330 is inclined toward the direction of the U-shaped outer side surface 340 and forms an angle of 95°-110° with the horizontal bottom surface 310; the top of the U-shaped outer side surface 340 is inclined toward the direction of the U-shaped inner side surface 330 and forms an angle of 95°-110° with the cushion base plate 100. The U-shaped inner side surface 330 and the U-shaped outer side surface 340 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 mechanism 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 is prevented from directly colliding 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 mechanism 200 can be increased, and the installation and removal of the safety belt connection mechanism 200 can be facilitated. The connection between the top surface 350 and the U-shaped inner side surface 330 and the U-shaped outer side surface 340 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 bumps on the user.

[0035] As a preferred embodiment, the seat cushion substrate and the U-shaped cover 300 are made of high-strength metal, 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 mounting holes and limit holes on the U-shaped cover 300 are made by laser cutting, water cutting, plasma cutting, wire cutting and stamping, which can further improve the structural strength of the safety structure of the present application.

[0036] The seat base 100 is located outside the legs and has a hollow structure to form a mounting groove 140. A length-adjustable connecting component is installed in the mounting groove 140. The connecting component can pass through the rear of the seat base 100 and be detachably connected to the ISOFIX interface of the child safety seat fixing system. Figure 2 As shown, the seat base plate 100 is provided with an upward second protrusion 130 at a position between the two legs, and the hollow structure below the second protrusion 130 forms a mounting groove 140. Specifically, the connection component is a seat fixing belt 150 or an ISOFIX hard interface connector of a child safety seat fixing system, and the end of the seat fixing belt 150 passing through the seat base plate 100 is provided with a hook that can be detachably connected to the ISOFIX interface of the child safety seat fixing system; the 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 the seat fixing belt 150 or the ISOFIX hard interface connector of the 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 cushion to meet the use specifications of different countries, so that users whose abdomens cannot be compressed can sit in the back row, 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 seat cushion fixing belt 150, the hook on the seat cushion fixing belt 150 can be externally connected to a 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.

[0037] As a preferred embodiment, Figure 1 As shown, a plurality of through holes 160 are provided in the middle of the seat cushion substrate 100, so that the seat cushion substrate 100 forms 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, so that the safety structure of the present application meets the lightweight design requirements and is easy to carry and use.

[0038] The buffer layer 400 is made of high-density fabric, sponge, rubber pad, sponge pad, silicone pad or other buffer materials. On the one hand, it can improve the riding comfort of the user. On the other hand, it can bury the protective cover to prevent the protective cover from causing secondary injuries such as bumps to the user. At the same time, it can wrap the seat belt to prevent the seat belt from cutting the user laterally.

[0039] As a preference, a wrapping layer (not shown in the figure) is further provided outside the buffer layer 400, and the wrapping layer 700 is made of a flexible material such as cloth, etc., to further improve the comfort of the user.

[0040] As a preferred embodiment, the seat cushion substrate 100 and the seat belt connecting mechanism 200 are both made of high-strength metal, 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. 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 subjected to pressure.

[0041] As a preferred embodiment, Figure 1 As shown, the seat cushion base plate 100 is provided with a plurality of height adjustment pad mounting holes 170, and a height adjustment pad can be installed under the seat cushion base plate 100 through the height adjustment pad mounting 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.

[0042] Embodiment 2: In this embodiment, the locking device 220 is a thumbwheel type locking device, including a nut 224 fixed in the mounting seat 110, a screw rod 225 passing through the top of the mounting seat 110 and connected to the nut 224, and a thumbwheel 226 fixed to the screw rod 225. The top of the screw rod 225 can be locked with the connecting end 212, and the edge of the thumbwheel 226 extends out of the safety structure. Fig.12 and Fig.13As shown, the nut 224 is fixed to the inner side of the top of the mounting seat 110 by welding or other means, a connection hole is provided at the top of the mounting seat 110 at a position corresponding to the threaded hole on the nut 224, the bottom of the screw rod 225 passes through the connection hole and is threadedly connected to the nut 224, a thumbwheel 226 is fixedly connected to the bottom of the screw rod 225 connected to the nut 224, and the top diameter of the screw rod 225 matches the diameter of the connecting end 212. By rotating the thumbwheel 226, the screw rod 225 can be driven to move along the direction of the threaded hole of the nut 224, so as to realize the locking and opening of the screw rod 225 and the connecting end 212, facilitate the connection and fixing of the safety belt, and prevent the safety belt from detaching from the hook 210, thereby reducing safety hazards. The vertical side surface 320 of the U-shaped cover 300 and the corresponding positions of the outer wall of the safety structure are provided with mounting holes, and the edge of the dial wheel 226 extends out of the mounting hole, so that the user can rotate the dial wheel 226 outside the seat cushion to adjust the opening and locking of the safety belt connection mechanism 200, thereby improving the convenience of operation.

[0043] Specifically, when the safety belt needs to be connected, the dial 226 is rotated to move the screw rod 225 toward the bottom of the mounting seat 110, at which time the top of the screw rod 225 and the connecting end 212 are in a separated state; then the safety belt located at the abdomen of the user during normal connection is passed through the opening between the top of the screw rod 225 and the connecting end 212 and fixed on the hook 210 to achieve the connection between the safety belt and the safety belt connecting mechanism 200; then, the dial 226 is rotated in the opposite direction to move the screw rod 225 toward the connecting end 212 until the top of the screw rod 225 contacts the connecting end 212, thereby achieving the locking of the safety belt connecting mechanism 200. The safety belt will be locked in the space formed by the safety belt connecting mechanism 200 and the horizontal bottom surface 310 of the U-shaped cover 300, and there will be no safety risk caused by the safety belt being separated from the safety belt connecting mechanism 200, thereby improving the safety performance of the safety structure of the present invention.

[0044] In this embodiment, other parts are the same as those in the first embodiment.

[0045] Embodiment three: In this embodiment, Fig.14 As shown, the locking device 220 is a barb locking device, including a barb 227 installed on the connecting end 212, and the size of the gap between the barb 227 and the horizontal bottom surface 310 of the U-shaped cover 300 is adapted to the thickness of the safety belt. Specifically, the distance between the barb 227 and the horizontal bottom surface 310 is 2-5 mm larger than the thickness of the safety belt, so that the safety belt can just pass through the gap and be fixed on the safety belt connecting mechanism 200, and during the movement of the user, the safety belt is not easy to detach from the hook 210 and the barb 227, thereby reducing the safety risk and improving the safety performance of the safety structure of the present invention.

[0046] In this embodiment, other parts are the same as those in the first embodiment.

[0047] Embodiment 4: In this embodiment, Fig.15 As shown, the locking device 220 is a barb locking device, including a barb 227 installed on the connecting end 212. Two hook connecting holes 180 are arranged at intervals on the top of the mounting seat 110 along the front-to-back direction. The fixed end 211 of the hook 210 can be detachably connected to any hook connecting hole 180 through a fastener such as a screw. The user can select the hook connecting hole 180 at a suitable position according to the size of the abdomen and the body shape to install the fixed end 211 of the hook 210, so that the safety belt on the vehicle or amusement facility is tied 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 can generate a binding force in time, and the airbag can be triggered to open in time when a serious accident occurs, which can improve the safety of the safety structure of the present application and the comfort of the user when using the safety structure.

[0048] In this embodiment, other parts are the same as those in the third embodiment.

[0049] Embodiment five: In this embodiment, Fig.16 As shown, the locking device 220 is a sleeve locking device, including an external thread installed on the connecting end 212, and a rotatable threaded sleeve 228 is arranged on the top of the mounting seat 110. The top of the threaded sleeve 228 is open, and an internal thread is arranged to cooperate with the external thread of the connecting end 212. When the threaded sleeve 228 is rotated by an external force, the threaded sleeve 228 rises or falls due to the thread cooperation to open the gap between the connecting end 212 and the top of the mounting seat 110 or close the gap. When the gap is opened, the safety belt can enter and exit the inside of the hook 210.

[0050] In this embodiment, other parts are the same as those in the first embodiment.

[0051] Embodiment six: In this embodiment, Fig.17As shown, the locking device 220 is a sleeve locking device, and the other structures are the same as those of the fifth embodiment, except that a plurality of hook connection holes 180 are arranged at intervals along the front-back direction on the top of the mounting seat 110, and the fixed end 211 of the hook 210 can be detachably connected to any hook connection hole 180 by means of fasteners such as screws, and at the same time, the threaded sleeve 228 can be detachably installed on the top of the mounting seat 110, and the corresponding threaded sleeve 228 can be selected and installed according to different positions of the hook 210. The user can select the hook connection hole 180 at a suitable position to install the fixed end 211 of the hook 210 according to the size of the abdomen and the body shape, so that the safety belt on the vehicle or amusement facility is tied 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.

[0052] Embodiment seven: In this embodiment, Fig.18 As shown, other structures are the same as those of Example 1, Example 2, Example 3, Example 4, Example 5 or Example 6, with the difference that the seat cushion base plate 100 is integrally formed to approximate the curve of the human buttocks, the middle part of the seat cushion base plate 100 protrudes upward between the two legs to form a first protrusion 120 and the outer sides of the two legs protrude upward to form a second protrusion 130 with a hollow bottom, and the seat cushion base plate 100 is formed in the shape of the human buttocks with three sides protruding upward and the front part of the base plate being concave along the thigh. The first raised portion 130 forms a U-shaped cover 300, and the U-shaped cover 300 includes a horizontal bottom surface 310, a vertical side surface 320, a U-shaped inner side surface 330, a U-shaped outer side surface 340 and a top surface 350. The horizontal bottom surface 310 is connected to the U-shaped inner side surface 330 to form a U-shaped space together. The position of the horizontal bottom 310 is higher than the seat cushion base plate 100 on both sides of the U-shaped connection part, so that a hollow structure is formed below the U-shaped connection part; the seat cushion base plate 100 is provided with an upward second raised portion 130 at the position outside the two legs, and a safety structure fixing belt or ISOFIX hard interface connector 131 is installed below the second raised portion 130, which can be detachably connected to the ISOFIX interface of the child safety seat fixing system.

[0053] The seat cushion substrate 100 is integrally formed with the U-shaped cover 300, and the U-shaped cover 300 is formed in the middle of the seat cushion substrate 100 by directly adopting stamping or casting, forging, 3D printing, machining, injection molding, selective laser melting, selective laser sintering, metal deposition, blow molding, injection molding, calendaring, vacuum forming, compression molding, lamination, thermoforming, vacuum forming, rotational molding, RTM (resin transfer molding), autoclave (AC) molding, oven molding, extrusion molding, compression molding, molding, pultrusion, fiber winding, spray molding and contact molding technology. Fig.18 As shown, it includes a horizontal bottom surface 310, a vertical side surface 320, a U-shaped inner side surface 330, a U-shaped outer side surface 340 and a top surface 350, and the functional structure is the same as that of Example 1, Example 2, Example 3, Example 4, Example 5 or Example 6, and the horizontal bottom surface 310 is used to replace the original mounting base 110.

[0054] 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 hook-type safety structure for preventing abdominal compression on a seat, the seat comprising a seat belt, It is 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, and the front end of the seat cushion base plate is located between the two legs and is configured as a hollow structure to form a mounting seat; A safety belt connecting mechanism, used to connect the safety belt, comprising a hook mounted on the mounting seat and a locking device capable of locking with the hook to prevent the safety belt from being detached; A protective cover, mounted on the seat cushion base plate around the mounting seat or integrally formed with the seat cushion base plate, and used to surround and protect the safety belt connection mechanism; A cushioning layer wraps the cushion substrate and the protective cover to form a cushion; An anti-collision protection pad is arranged on the seat cushion base plate on the side of the mounting seat close to the user, and is used to constrain 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; and The cushion tail filling block is arranged between the rear end of the cushion base plate and the user's buttocks, so that the user's body is as close to the hook as possible.

2. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 1, Features: The mounting seat is an upward first protrusion arranged on the seat base between the two legs, and the hook includes a fixed end installed on one side of the first protrusion close to the middle of the seat base and a connecting end close to the edge of the safety structure.

3. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 2, Features: The locking device is a spring-type locking device, comprising a fixed sleeve installed in the mounting seat and a spring and a piston installed in the fixed sleeve. The piston is installed on the top of the spring and can be locked with the connecting end.

4. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 3, Features: The piston is provided with an adjusting rod, the rear end of the adjusting rod is fixed on the piston, and the front end extends out of the fixed sleeve and the safety structure. The fixed sleeve is provided with a vertical slide groove and a horizontal slide groove located at the bottom of the vertical slide groove, and the adjusting rod can slide in the vertical slide groove and the horizontal slide groove.

5. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 2, Features: The protective cover is a U-shaped cover including a horizontal bottom surface, a vertical side surface, a U-shaped inner side surface, a U-shaped outer side surface and a top surface. The horizontal bottom surface and the vertical side surface are both provided with mounting holes that cooperate with the safety belt connection mechanism. The U-shaped inner side surface and the U-shaped outer side surface are both three-sided sloped and gradually raised shapes.

6. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 1, Features: The seat cushion base is located on the outside of the two legs and is a hollow structure forming an installation groove, in which a length-adjustable connecting component is installed. The connecting component can pass through the rear of the seat cushion base and be detachably connected to the ISOFIX interface of the child safety seat fixing system.

7. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 6, Features: The connecting component is a seat cushion fixing belt or an ISOFIX hard interface connecting part of a child safety seat fixing system. The end of the seat cushion fixing belt or the ISOFIX hard interface connecting part of a 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.

8. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 2, Features: The locking device is a thumbwheel type locking device, including a nut fixed in the mounting seat, a screw rod passing through the top of the mounting seat and threadedly connected to the nut, and a thumbwheel fixed on the screw rod. Rotating the thumbwheel can lock the top of the screw rod with the connecting end.

9. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 5, Features: The locking device is a barb locking device, comprising a barb installed on the connecting end, and the distance between the barb and the horizontal bottom surface of the U-shaped cover is greater than the thickness of the safety belt.

10. A hook-type safety structure for preventing the abdomen from being compressed on a seat according to claim 9, Features: A plurality of hook connection holes are arranged at intervals on the top of the mounting seat along the front-to-back direction, and the fixed end of the hook can be detachably connected to any hook connection hole.

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