Hidden five-point buckle

Abstract

The present application relates to a kind of buckles suitable for child seat, provide a hidden five-point buckle, including main buckle seat, respectively detachable installation in the left buckle group and right buckle group of two sides of main buckle seat and the button being arranged in the middle of main buckle seat.The left buckle mechanism and right buckle mechanism of two sides of main buckle seat are symmetrically provided, respectively with the left buckle group and right buckle group described above are mutually buckled.The left buckle group includes left plug buckle and left lock buckle, and the right buckle group includes right plug buckle and right lock buckle, and main buckle seat is provided with the cover plate of five directions of belt and the belt slot, and five belts in five directions are arranged below the cover plate of belt, and the belt is bound from side and bottom surface, to avoid the safety hazard that belt slot is exposed to cause baby injury.The lock buckle and plug buckle of left and right sides are firmly embedded and then inserted into main buckle seat, fully consider the stress variation under each body function state, and be closely connected reliable.The button is provided with balanced setting, to avoid the safety hazard caused by one side unlocking.

Description

Technical Field

[0001] This invention relates to the technical field of safety buckles, and more specifically, to a safety buckle for use with seat belts. Background Technology

[0002] Seat belts are currently used in vehicle seats, baby carriers, and child seats to protect passengers or children. Child seats are seats specifically designed for children, and can be categorized based on their purpose, such as car seats, strollers, and high chairs. To enhance the safety performance of child seats, they are generally equipped with seat belts and safety buckles that restrict child movement. The most common safety buckles on the market are usually two-point or three-point buckles, which connect to two or three seat belts to achieve a restraining function. Currently, a five-point safety buckle with even higher safety performance has also emerged.

[0003] For example, the invention with patent publication number CN201869902U discloses a five-point safety buckle, including a safety buckle body and left and right buckles. The lower side of the safety buckle body is provided with a main strap position for connecting the seat belt. The left and right sides of the safety buckle body are respectively provided with left and right buckle positions for locking the left and right buckles. The side of the safety buckle body is provided with elastic buttons that can force the left and right buckles to disengage from the left and right buckle positions. The two sides of the left buckle are respectively provided with the first and second left strap positions for connecting the seat belt, and the two sides of the right buckle are respectively provided with the first and second right strap positions for connecting the seat belt. The aforementioned solution achieves five-point fixation through the main seatbelt position, the first and second left seatbelt positions, and the first and second right seatbelt positions. Since each of the left and right buckles connects two seatbelts, a closed loop is formed between the left and right buckles and the seat. In actual use, the child's arms need to be passed through the closed loop at the left and right buckles. Similarly, when unbuckling the seatbelt, the child's arms need to be removed from the closed loop. Therefore, if the child does not cooperate during the fastening / unfastening of the seatbelt, it will cause inconvenience in operation. Patent publication number CN207744771 U discloses a safety buckle for use with seat belts. The key technical features include a main buckle base and left and right buckles that are detachably installed on both sides of the main buckle base. Both the left and right buckles have a first and a second side fastening position for connecting the seat belt. The left and right buckles are mainly composed of an upper buckle plate with a first side fastening position and a lower buckle plate that is snapped and fixed to the main buckle base and has a second side fastening position. There is a plug-in structure between the upper and lower buckle plates for detachably installing the upper buckle plate onto the lower buckle plate. This allows for the quick fixing or separation of any two adjacent seat belts, thus facilitating the fastening / unfastening of seat belts for children under any emotional influence.

[0004] Both of the aforementioned safety buckles achieve multi-point connection from a connection perspective, but all their strap positions are exposed. Furthermore, these buckles are typically placed on the abdomen of infants and children, making it easy for their fingertips or nails to get stuck when they unconsciously try to pry them open, leading to fingertip injuries or nail folds. Additionally, during disassembly, if the force is uneven, only the side with greater force can be unlocked. The first and second side strap positions are detachable, allowing the separation of any two adjacent safety belts, which also poses a safety hazard and does not meet the safety regulations of some regions. Summary of the Invention

[0005] The purpose of this invention is to provide a concealed five-point buckle that can hide the strap position and improve upon the shortcomings of single-sided unlocking and arbitrary separation of the side strap, thereby ensuring that the aforementioned safety indicators of products manufactured using the solution of this invention meet higher safety standards. To achieve concealed straps, a secure connection, and quick full unlocking, the applicant conducted extensive design and testing of the fastening and unlocking structures, ultimately selecting the solution of this invention.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a concealed five-point buckle, comprising a main buckle base and left and right buckle assemblies detachably mounted on both sides of the main buckle base. The main buckle base has symmetrically arranged left and right latching mechanisms on both sides, which respectively engage with the aforementioned left and right buckle assemblies. The left buckle assembly includes a left insert buckle and a left locking buckle, and the right buckle assembly includes a right insert buckle and a right locking buckle. A first tie cover plate is provided on the outer side of the main buckle base, with a first tie lateral groove on the outer edge and a first tie bottom groove at the bottom. A second tie cover plate is provided on the outer side of the left insert buckle, with a second tie lateral groove on the outer edge and a second tie bottom groove at the bottom. The buckle features a bottom groove; a third strap cover is located on the outside of the left latch, with a third strap side groove on its outer edge and a third strap bottom groove at its bottom; a fourth strap cover is located on the outside of the right buckle, with a fourth strap side groove on its outer edge and a fourth strap bottom groove at its bottom; a fifth strap cover is located on the outside of the right latch, with a fifth strap side groove on its outer edge and a fifth strap bottom groove at its bottom; the straps in five directions pass between the corresponding side and bottom grooves, and the thickness and width of each strap are equivalent to the dimensions of the corresponding strap groove. Furthermore, there are no directly exposed strap grooves on the buckle surface, eliminating the safety hazard of the buckle pinching and injuring infants and children.

[0007] The left latching mechanism on the left side of the main latching seat includes: a left first latching groove, a left second latching groove, and a left third latching groove arranged sequentially on the left side of the main latching seat; a left locking tongue groove arranged between the left second latching groove and the left third latching groove; a left locking tongue inverted buckle provided on the upper inner side of the left locking tongue groove; and a left locking tongue guide energy storage inclined surface provided on the upper inner wall of the left locking tongue groove. A left latching seat is provided on the inner side of the second lacing cover plate of the left latching seat. The left latching seat has a left first latching tenon, a left second latching tenon, and a left third latching tenon protruding inwards sequentially. A left locking tongue slot is provided between the left second latching tenon and the left third latching tenon. A left latching groove and a left locking tongue positioning groove are provided on both sides of the left locking tongue slot. A left latching positioning recess is provided in the left locking tongue positioning groove and below the left third latching tenon. A left stress-enhancing groove is provided on the upper inner wall of the left locking tongue slot. A left latching seat is provided on the inner side of the third lacing cover plate of the left latching seat. The left latch plate protrudes inward, with a left locking groove in the middle. A beveled left latch guide section is located at the upper front of the left latch plate. A left latch tenon is located at the upper part of the left latch seat, and a left latch positioning tenon is located at the lower part. Left latch positioning protrusions are located at the middle of the left latch tenon and the end of the left latch positioning tenon. A left stress reinforcing rib is located at the root of the left latch plate. The left latch plate on the left latch is inserted into the left latch slot within the left latch seat. The left latch groove and the left stress reinforcing groove are respectively embedded in the left latch groove and the left stress reinforcing groove, fixing the left latch seat to the outside of the left latch seat. The third and second tie-down covers are connected to each other, and the left latch tenon and the left third latch tenon are merged together. The left latch positioning protrusions and left latch positioning recesses engage correspondingly, and the left stress reinforcing rib is inserted into the left stress reinforcing groove, enhancing the connection strength between the left latch and the left latch. Furthermore, the left locking tongue guide section is inserted into the left locking tongue slot in the left latching mechanism along the left locking tongue guide energy storage slope until the left locking groove and the left locking tongue are locked together; at the same time, the left first latch tenon, the left second latch tenon and the combined left third latch tenon and the left latch tenon are inserted into the left first latch slot, the left second latch slot and the left third latch slot respectively, fixing the left fastener assembly to the main fastener seat through the left latching mechanism, and fixing the third tie cover plate and the second tie cover plate to the left side of the first tie cover plate.

[0008] Symmetrically, the right latching mechanism on the right side of the main latch seat includes: a right first latching groove, a right second latching groove, and a right third latching groove sequentially arranged on the right side of the main latch seat; a right locking tongue groove arranged between the right second latching groove and the right third latching groove; a right locking tongue inverted buckle provided on the upper inner side of the right locking tongue groove; and a right locking tongue guide energy storage inclined surface provided on the upper inner wall of the right locking tongue groove; a right latching seat provided on the inner side of the fourth tie cover plate of the right latch; a right latching seat with a right first latching tenon, a right second latching tenon, and a right third latching tenon protruding inwards sequentially provided on the right latching seat; a right locking tongue slot provided between the right second latching tenon and the right third latching tenon; a right latching groove and a right locking tongue positioning groove provided on both sides of the right locking tongue slot; a right latching positioning recess provided in the right locking tongue positioning groove and below the right third latching tenon; and a right stress-enhancing groove provided on the upper inner wall of the right locking tongue slot; a right latching seat provided on the inner side of the fifth tie cover plate of the right latch; and a right latching... A right locking tongue plate protrudes inward from the center of the base, and a right locking groove is provided in the center of the right locking tongue plate. A right locking tongue guide section with a bevel is provided at the upper front end of the right locking tongue plate. A right locking tenon is provided at the upper part of the right locking seat, and a right locking positioning tenon is provided at the lower part of the right locking seat. A right locking positioning protrusion is provided at the middle of the right locking tenon and the end of the right locking positioning tenon. A right stress reinforcing rib is provided at the root of the right locking tongue plate. The right locking tongue plate on the right lock is inserted into the right locking tongue slot in the right latch seat. The right locking groove and the right stress reinforcing groove are respectively embedded in the right locking groove and the right stress reinforcing groove, fixing the right lock seat to the outside of the right latch seat. The fifth tie cover plate and the fourth tie cover plate are connected to each other. The right locking tenon and the right third latch tenon are merged together. The right locking positioning protrusion and the right locking positioning concave point are engaged accordingly. The right stress reinforcing rib is engaged in the right stress reinforcing groove, enhancing the connection strength between the right lock and the right latch. Furthermore, the right locking tongue guide section is inserted into the right locking tongue slot in the right latching mechanism along the right locking tongue guide energy storage slope until the right locking groove and the right locking tongue are locked together; at the same time, the right first latch tenon, the right second latch tenon and the combined right third latch tenon and the right latch tenon are inserted into the right first latch slot, the right second latch slot and the right third latch slot respectively, fixing the right fastener assembly to the main fastener seat through the right latching mechanism, and the fifth tie cover plate and the fourth tie cover plate are fixed to the right side of the first tie cover plate.

[0009] After the left and right fastener assemblies of this invention are fixed to the main fastener seat by the left and right fastening mechanisms respectively, releasing the locking of the aforementioned components requires the engagement of a button. A button cavity is provided in the middle of the main fastener seat, and the button is slidably embedded in the button cavity. The inner opening of the left locking tongue slot and the left locking tongue buckle are located on the left side of the button cavity, and the right locking tongue slot and the right locking tongue buckle are located on the right side of the button cavity. After the left locking groove and the left locking tongue buckle are mutually locked, the left locking tongue guide section is inserted into the button cavity from the left side; after the right locking groove and the right locking tongue buckle are mutually locked, the right locking tongue guide section is inserted into the button cavity from the right side. Limiting grooves are provided on the upper and lower sides of the button cavity, and a balance plate is provided in the middle of the button cavity. A limiting rib is provided on the side of the button corresponding to the limiting groove, and a limiting hook is provided at the lower end of the limiting rib. A button assembly guide slope is provided on the outer side of the limiting hook, and a pressing point is provided on the top surface of the button. The plate has two symmetrically protruding top plates on its left and right sides, corresponding to the left and right locking tongue guide sections inserted into the button cavity. A balance support plate is installed on the inner side of each top plate, and a balance limiting groove adapted to the position and thickness of the balance plate is provided in the middle of the balance support plate. The button is guided into the button cavity by a button assembly guide slope, and a limiting hook engages in a limiting groove to limit the button's vertical sliding position within the button cavity. The top plates abut against the left and right locking tongue guide sections inserted into the button cavity. During insertion into the left and right locking tongue slots, the left and right locking tongue guide sections abut against the left and right locking tongue energy storage slopes, respectively, causing the left locking tongue plate to... The right locking tongue plate undergoes stress deformation. Under this stress, the left locking groove and the left locking tongue buckle interlock at the opening, and the right locking groove and the right locking tongue buckle interlock. Simultaneously, the left and right locking tongue guide sections inserted into the button cavity lift the top plate upwards, causing the button to slide upwards until the limit hook slides to the upper end of the limit groove. When the button is pressed downwards, the top plate overcomes the stress accumulated during the deformation of the left and right locking tongue plates, pressing the left and right locking tongue guide sections downwards until the limit hook slides to the lower end of the limit groove. This causes the left locking groove and the left locking tongue buckle to disengage, and the right locking groove and the right locking tongue buckle to disengage. Simultaneously, the oblique angle between the top plate and the left and right locking tongue guide sections... The contact surface allows the left and right locking tongue plates to accumulate elastic potential energy again before disengagement. After disengagement, this elastic potential energy is converted into kinetic energy, causing the left and right locking tongue plates to eject from their respective locking tongue slots with a certain initial velocity. To ensure that the top plates on both sides can move simultaneously when the button slides down, a balance plate is inserted into the balance limiting groove between the balance support plates. The tilt angle of the pressing plate is limited by adjusting the gap between the balance plate and the balance support plate. If the angle exceeds the sliding range, the balance plate and the balance support plate abut against each other and lock, restricting the downward sliding of the top plate. This solution avoids the single-sided top plate pressing down and causing single-sided unlocking when pressing one side, and achieves simultaneous unlocking when pressing the center position.

[0010] To further ensure the stability of the button function and highlight the button's position on the main mounting base, after the button's functional components are manufactured separately, the inner top panel of the button can be separated to create a split panel. Split panel slots are provided on the top and bottom sides of the button, and split panel support bosses are provided on the left and right sides. Split panel engaging points are located on the sides of the split panel corresponding to the slots, and split panel support positions are located on the sides corresponding to the support bosses. The engaging points engage with the corresponding slots, and the support positions rest against the upper part of the support bosses. The interchangeable split panels allow for personalized markings to meet individual user needs, or the split panels can be hollowed out and integrated with the buttons, offering more ways to connect the split panels to the buttons.

[0011] In summary, this invention offers the following advantages: Five straps in five directions are positioned under the strap cover, securing the straps from the side and bottom to prevent the strap grooves from being exposed and causing injury to infants; simultaneously, the left latch and left buckle are securely engaged before being inserted into the main buckle seat, and the right latch and right buckle are securely engaged before being inserted into the main buckle seat, fully considering stress changes under various functional states, resulting in a tight and reliable connection. To enhance the stress between the latches and buckles, stress-reinforcing ribs, as well as mutually cooperating positioning recesses and protrusions, are added. The strap cover plates are connected end-to-end, creating an aesthetically pleasing circular distribution; the balanced design of the buttons avoids the safety hazards caused by one-sided unlocking, and the split panel design on the buttons further expands their usability. Attached Figure Description

[0012] Figure 1 This is a frontal view of the disassembled state of the present invention; Figure 2 This is a schematic diagram of the bottom surface of the invention in its disassembled state; Figure 3 This is a schematic diagram from the right side of the disassembled state of the present invention; Figure 4 This is a schematic diagram of the disassembled state from the left side. Figure 5 This is a schematic diagram of the left side of the main fastener of the present invention; Figure 6 This is a schematic diagram of the right side of the main fastener of the present invention; Figure 7 This is a front view of the buttons and split panel of the present invention; Figure 8 This is a schematic diagram of the bottom surface of the buttons and the split panel of the present invention; Figure 9 This is a schematic diagram of the left-side buckle structure of the present invention; Figure 10 This is a schematic diagram of the right-side buckle structure of the present invention; Figure 11 This is a schematic diagram on the right side showing the assembly state of the present invention; Figure 12 for Figure 11 Schematic diagram of the AA section; Figure 13 This is a front view of the assembled state of the present invention; Figure 14 for Figure 13 Schematic diagram of the BB cross section.

[0013] The labels in the diagram indicate: 1. Main buckle seat; 11 First tether cover plate, 111 First tether side groove, 112 First tether bottom groove; 12 Left latching mechanism, 121 Left first latching groove, 122 Left second latching groove, 123 Left third latching groove, 124 Left locking tongue latching groove, 1241 Left locking tongue reverse latch, 1242 Left locking tongue guide energy storage slope; 13 Right latching mechanism, 131 Right first latching groove, 132 Right second latching groove, 133 Right third latching groove, 134 Right locking tongue latching groove, 1341 Right locking tongue reverse latch, 1342 Right locking tongue guide energy storage slope; 14 button cavity, 141 limit slide, 142 balance plate; 2. Left fastener assembly; 21 Left latch, 211 Second tie cover plate, 2111 Second tie side groove, 2112 Second tie bottom groove; 212 Left latch seat, 2121 Left first latch tenon, 2122 Left second latch tenon, 2123 Left third latch tenon, 2124 Left latch groove, 2125 Left latch slot, 2126 Left latch positioning groove, 2127 Left latch positioning recess, 2128 Left stress reinforcing groove; 22 Left latch, 221 Third lacing belt cover plate, 2211 Third lacing belt side groove, 2212 Third lacing belt bottom groove, 222 Left latch seat, 2221 Left latch tongue plate, 22211 Left locking groove, 22212 Left latch tongue guide section, 2222 Left latch tenon, 2223 Left latch positioning tenon, 2224 Left latch positioning protrusion, 2225 Left stress reinforcement rib; 3. Right fastener assembly; 31 Right latch, 311 Fourth tie plate, 3111 Fourth tie side groove, 3112 Fourth tie bottom groove; 312 Right latch seat, 3121 Right first tenon, 3122 Right second tenon, 3123 Right third tenon, 3124 Right latch groove, 3125 Right latch slot, 3126 Right latch positioning groove, 3127 Right latch positioning recess, 3128 Right stress reinforcing groove; 32 Right latch, 321 Fifth lacing belt cover plate, 3211 Fifth lacing belt side groove, 3212 Fifth lacing belt bottom groove; 322 Right latch seat, 3221 Right latch tongue plate, 32211 Right locking groove, 32212 Right latch tongue guide section, 3222 Right latch tenon, 3223 Right latch positioning tenon, 3224 Right latch positioning protrusion, 3225 Right stress reinforcement rib; 4 buttons, 41 limiting ribs, 42 limiting hooks, 421 button assembly guide slope, 43 pressing plate, 431 top plate, 432 balance support plate, 433 balance limiting groove, 44 split panel slot, 45 split panel support boss, 46 split panel, 461 split panel fitting point, 462 split panel support position. Detailed Implementation

[0014] The purpose of this invention is to provide a concealed five-point buckle that can hide the strap position and improve upon the shortcomings of single-sided unlocking and arbitrary separation of the side strap, thereby ensuring that the aforementioned safety indicators of products manufactured using the solution of this invention meet higher safety standards. To achieve concealed straps, a secure connection, and quick full unlocking, the applicant conducted extensive design and testing on the fastening and unlocking mechanisms, ultimately selecting the solution of this invention.

[0015] The above-mentioned technical objective of this invention is achieved through the following technical solutions, such as... Figures 1 to 14As shown: A concealed five-point buckle includes a main buckle base 1 and left buckle assembly 2 and right buckle assembly 3, which are detachably installed on both sides of the main buckle base 1. The main buckle base 1 has a left latching mechanism 12 and a right latching mechanism 13 symmetrically arranged on both sides, which respectively engage with the aforementioned left buckle assembly 2 and right buckle assembly 3. The left buckle assembly 2 includes a left insert buckle 21 and a left locking buckle 22, and the right buckle assembly 3 includes a right insert buckle 31 and a right locking buckle 32. A first tie cover plate 11 is provided on the outside of the main buckle base 1, with a first tie side groove 111 on the outer side and a first tie bottom groove 112 at the bottom. A second tie cover plate 211 is provided on the outside of the left insert buckle 21, with a second tie side groove 2111 on the outer side and a second tie bottom groove 2112 at the bottom. On the outside of the left locking buckle 22... A third lacing cover plate 221 is provided, with a third lacing lateral groove 2211 on its outer side and a third lacing bottom groove 2212 on its bottom. A fourth lacing cover plate 311 is provided on the outer side of the right buckle 31, with a fourth lacing lateral groove 3111 on its outer side and a fourth lacing bottom groove 3112 on its bottom. A fifth lacing cover plate 321 is provided on the outer side of the right buckle 32, with a fifth lacing lateral groove 3211 on its outer side and a fifth lacing bottom groove 3212 on its bottom. The lacing straps in the five directions are respectively threaded between the corresponding lateral and bottom grooves. The thickness and width of each lacing strap are equivalent to the size of the corresponding lacing groove, and there are no directly exposed lacing grooves on the surface of the buckle, thus eliminating the safety hazard of the buckle pinching and injuring infants and children.

[0016] The left buckle mechanism 12 on the left side of the main buckle seat 1 includes: a left first buckle groove 121, a left second buckle groove 122, and a left third buckle groove 123 arranged sequentially on the left side of the main buckle seat 1; a left locking tongue groove 124 arranged between the left second buckle groove 122 and the left third buckle groove 123; a left locking tongue buckle inverted buckle 1241 provided on the upper inner side of the left locking tongue groove 124; and a left locking tongue guide energy storage inclined surface 1242 provided on the upper inner wall of the left locking tongue groove 124. A left buckle seat 212 is provided inside the second strap cover plate 211 of the left buckle 21, and a left first buckle tenon 21 protrudes inward from the left buckle seat 212. 21. Left second tenon 2122 and left third tenon 2123, with a left latch slot 2125 between them. A left latch groove 2124 and a left latch positioning groove 2126 are respectively provided on both sides of the left latch slot 2125. A left latch positioning recess 2127 is provided below the left latch positioning groove 2126 and the left third tenon 2123. A left stress-enhancing groove 2128 is provided on the upper inner wall of the left latch slot 2125. A left latch seat 222 is provided inside the third fastening cover plate 221 of the left latch 22. The left locking tongue plate 2221 protrudes inward from the middle of the buckle seat 222. The left locking tongue plate 2221 has a left locking groove 22211 in the middle. The upper front end of the left locking tongue plate 2221 has a left locking tongue guide section 22212 with a bevel. The upper part of the left lock buckle seat 222 has a left lock buckle tenon 2222. The lower part of the left lock buckle seat 222 has a left lock buckle positioning tenon 2223. The middle part of the left lock buckle tenon 2222 and the end of the left lock buckle positioning tenon 2223 are respectively provided with left lock buckle positioning protrusions 2224. A left stress reinforcing rib 2225 is provided at the root of the left locking tongue plate 2221. The left locking tongue plate on the left lock buckle 22 2221 is inserted into the left latch slot 2125 inside the left latch seat 212, fixing the left latch seat 222 to the outside of the left latch seat 212. The third tie cover plate 221 and the second tie cover plate 211 are connected to each other. The left latch tenon 2222 and the left third latch tenon 2123 are combined together. The inner side of the left latch tenon 2222 is embedded in the left latch groove 2124. The left latch positioning protrusion 2127 and the left latch positioning concave point 2224 are engaged. The left stress reinforcing rib 2225 is engaged in the left stress reinforcing groove 2128 to enhance the connection strength between the left latch 22 and the left latch 21. Furthermore, the left locking tongue guide section 22212 is inserted into the left locking tongue slot 124 in the left locking tongue guide energy storage slope 1242 along the left locking tongue guide energy storage slope 1242, until the left locking groove 22211 and the left locking tongue buckle 1241 are mutually locked; at the same time, the left first buckle tenon 2121, the left second buckle tenon 2122 and the combined left third buckle tenon 2123 and the left locking tenon 2222 are respectively inserted into the left first buckle slot 121, the left second buckle slot 122 and the left third buckle slot 123, fixing the left fastener assembly 2 to the main buckle seat 1 through the left locking mechanism 12, and fixing the third tie cover plate 221 and the second tie cover plate 211 to the left side of the first tie cover plate 11.

[0017] Symmetrically, the right latching mechanism 13 on the right side of the main latching seat 1 includes: a right first latching groove 131, a right second latching groove 132, and a right third latching groove 133 sequentially arranged on the right side of the main latching seat 1; a right locking tongue groove 134 arranged between the right second latching groove 132 and the right third latching groove 133; a right locking tongue inverted buckle 1341 provided on the upper inner side of the right locking tongue groove 134; and a right locking tongue guide energy storage inclined surface 1342 provided on the upper inner wall of the right locking tongue groove 134. A right latching seat 312 is provided inside the fourth strap cover plate 311 of the right latch 31, and the right latching seat 312 is provided with a right first latching tenon 3121 and a right second latching tenon 3121 protruding inwards sequentially. The right second tenon 3122 and the right third tenon 3123 are connected by a right latch slot 3125. A right latch groove 3124 and a right latch positioning groove 3126 are respectively provided on both sides of the right latch slot 3125. A right latch positioning recess 3127 is provided inside the right latch positioning groove 3126 and below the right third tenon 3123. A right stress-enhancing groove 3128 is provided on the upper inner wall of the right latch slot 3125. A right latch seat 322 is provided inside the fifth fastening cover plate 321 of the right latch 32. A right latch plate 3221 protrudes inward from the center of the right latch seat 322. The right latch plate 3221 has a right locking groove 32211 in the middle, and a right latch guide section 32212 with a bevel at the upper front end of the right latch plate 3221. The upper part of the right latch seat 322 has a right latch tenon 3222, and the lower part of the right latch seat 322 has a right latch positioning tenon 3223. The middle part of the right latch tenon 3222 and the end of the right latch positioning tenon 3124 are respectively provided with right latch positioning protrusions 3224. A right stress reinforcing rib 3225 is provided at the root of the right latch plate 3221. The right latch plate 3221 on the right latch 32 is inserted into the right latch slot 3125 in the right latch seat 312. 24 and the right stress-enhancing groove 3128 are respectively embedded in the right latch groove 3124 and the right stress-enhancing groove 3128, fixing the right latch seat 322 to the outside of the right buckle seat 312. The fifth tie cover plate 321 and the fourth tie cover plate 311 are connected to each other. The right latch tenon 3222 and the right third latch tenon 3123 are combined together. The inner side of the right latch tenon 3222 is embedded in the right latch groove 3124. The right latch positioning protrusion 3224 and the right latch positioning concave point 3127 are engaged accordingly. The right stress-enhancing rib 3225 is inserted into the right stress-enhancing groove 3128 to enhance the connection strength between the right latch 32 and the right buckle 31.Furthermore, the right latch guide section 32212 is inserted into the right latch slot 134 in the right latch mechanism 13 along the right latch guide energy storage slope 1342 until the right locking groove 32211 and the right latch buckle 1341 are mutually locked; at the same time, the right first latch tenon 3121, the right second latch tenon 3122 and the combined right third latch tenon 3123 and the right latch tenon 3222 are respectively inserted into the right first latch slot 131, the right second latch slot 132 and the right third latch slot 133, fixing the right fastener assembly 3 to the main fastener seat 1 through the right latch mechanism 13, and fixing the fifth tie cover plate 321 and the fourth tie cover plate 311 to the right side of the first tie cover plate 11.

[0018] After the left fastener assembly 2 and the right fastener assembly 3 are fixed to the main fastener seat 1 by the left fastening mechanism 12 and the right fastening mechanism 13 respectively, the locking of the aforementioned components requires the engagement of a button. A button cavity 14 is provided in the middle of the main fastener seat 1, and the button is slidably embedded in the button cavity 14; the inner opening of the left locking tongue groove 124 and the left locking tongue buckle 1241 are located on the left side of the button cavity 14, and the right locking tongue groove 134 and the right locking tongue buckle 1341 are located on the right side of the button cavity 14; after the left locking groove 22211 and the left locking tongue buckle 1241 are mutually locked, the left locking tongue guide section 22212 is inserted into the button cavity 14 from the left side, and after the right locking groove 32211 and the right locking tongue buckle 1341 are mutually locked, the right locking tongue guide section 32212 is inserted into the button cavity 14 from the right side; the button cavity 14 is provided with limiting slide grooves 141 on the upper and lower sides respectively, and the button cavity 14 is provided with limiting slide grooves 141 on the upper and lower sides respectively. A balance plate 142 is provided in the middle of the button; a limiting rib 41 is provided on the side of the button corresponding to the limiting slide groove 141, a limiting hook 42 is provided at the lower end of the limiting rib 41, a button assembly guide slope 421 is provided on the outer side of the limiting hook 42, a pressing plate 43 is provided on the top surface of the button, two top plates 431 are symmetrically protruding downward on the left and right sides of the pressing plate 43, corresponding to the left locking tongue guide section 22212 and the right locking tongue guide section 32212 inserted into the button cavity 14, a balance support plate 432 is provided on the inner side of the two top plates 431 respectively, and a balance limiting groove 433 adapted to the position and thickness of the balance plate 142 is provided in the middle of the balance support plate 432;The button 4 is guided into the button cavity 14 by the button assembly guide slope 421. The limiting hook 42 engages in the limiting slide groove 141 to limit the up and down sliding position of the button 4 in the button cavity 14. The top plate 431 abuts against the left locking tongue guide section 22212 and the right locking tongue guide section 32212 inserted into the button cavity 14. During the insertion of the left locking tongue guide section 22212 and the right locking tongue guide section 32212 into the left locking tongue slot 124 and the right locking tongue slot 134, respectively, they abut against the left locking tongue guide energy storage slope 1342 and the right locking tongue guide energy storage slope 1342, so that the left locking tongue plate 2221 and the right locking tongue plate 3221 are in contact. 221 generates stress deformation. Under the action of stress, the left locking groove 22211 and the left locking tongue buckle 1241 are locked together at the opening, and the right locking groove 32211 and the right locking tongue buckle 1341 are locked together. At the same time, the left locking tongue guide section 22212 and the right locking tongue guide section 32212 inserted into the button cavity 14 lift the top plate 431 upward and drive the button 4 upward until the limit hook 42 slides into the upper end of the limit slide groove 141. When the button 4 is pressed down, the top plate 431 overcomes the stress accumulated by the left locking tongue plate 2221 and the right locking tongue plate 3221 during the deformation process and locks the left locking tongue guide section 22211. 212 and the right locking tongue guide section 32212 are pressed downwards until the limiting hook 42 slides to the lower end of the limiting slide groove 141, causing the left locking groove 22211 to disengage from the left locking tongue buckle 1241 and the right locking groove 32211 to disengage from the right locking tongue buckle 1341. At the same time, the top plate 431 abuts against the inclined surfaces of the left locking tongue guide section 22212 and the right locking tongue guide section 32212, causing the left locking tongue plate 2221 and the right locking tongue plate 3221 to accumulate elastic potential energy again before disengagement. After disengagement, this elastic potential energy is converted into kinetic energy, causing the left locking tongue plate 2221 and the right locking tongue plate 3221 to exit the left locking tongue slot 12. 4. The button 4 is ejected from the right locking tongue slot 134 with a certain initial velocity. To ensure that the top plates 431 on both sides can move simultaneously when the button 4 slides down, the balance plate 142 is inserted into the balance limiting groove 433 between the balance support plates 432. The tilt angle of the pressing plate 43 is limited by adjusting the gap between the balance plate 142 and the balance support plate 432. If the angle exceeds the sliding range, the balance plate 142 and the balance support plate 432 abut against each other and lock, restricting the downward sliding of the top plate. This solution avoids the single-sided top plate pressing down and causing single-sided unlocking when pressing the center position, thus achieving simultaneous unlocking when pressing the center position.

[0019] To further ensure the stability of button 4's function and highlight its position on the main mounting base 1, after the functional part of button 4 is manufactured separately, the inner top panel of button 4 can be separated to form a split panel 46. Split panel slots 44 are provided on the top and bottom sides of button 4, and split panel support bosses 45 are provided on the left and right sides of button 4. Split panel engaging points 461 are provided on the side of split panel 46 corresponding to the slots 44, and split panel support positions 462 are provided on the side of split panel 46 corresponding to the support bosses 45. The engaging points 461 engage with the corresponding slots 44, and the support positions 462 rest against the top of the support bosses 45. With the convenience of the replaceable split panel 46, specific markings can be individually set on the split panel 46 to meet the user's personalized needs. Alternatively, the split panel 46 can be hollowed out and combined with button 4 for secure fastening, allowing for more ways to connect the split panel 46 with button 4.

[0020] In summary, the present invention has the following beneficial effects: Five straps in five directions are all positioned under the strap cover, binding the straps from the side and bottom to avoid the safety hazard of exposed strap grooves causing injury to infants; simultaneously, the left locking buckle 22 and the left insert buckle 21 are securely fitted together before being inserted into the main buckle seat 1, and the right locking buckle 32 and the right insert buckle 31 are securely fitted together before being inserted into the main buckle seat 1, fully considering the stress changes under each functional state, ensuring a tight and reliable connection. To enhance the stress between the locking buckle and the insert buckle, stress-reinforcing ribs and mutually cooperating positioning recesses and protrusions are added. The strap cover plates are connected end-to-end, and the overall circular distribution is aesthetically pleasing; the balanced design of the button avoids the safety hazard caused by one-sided unlocking, and the split panel 46 on the button 4 further expands the button's usability.

[0021] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A concealed five-point buckle, comprising a main buckle base (1) and a left buckle assembly (2) and a right buckle assembly (3) respectively detachably installed on both sides of the main buckle base (1), wherein the main buckle base (1) is symmetrically provided with a left buckle mechanism (12) and a right buckle mechanism (13) on both sides, which respectively engage with the aforementioned left buckle assembly (2) and right buckle assembly (3); the left buckle assembly (2) includes a left insert buckle (21) and a left locking buckle (22), and the right buckle assembly (3) includes a right insert buckle (31) and a right locking buckle (32); Its features are: The main buckle seat (1) is provided with a first tie cover plate (11) on the outside, the left buckle (21) is provided with a second tie cover plate (211) on the outside, the left lock buckle (22) is provided with a third tie cover plate (221) on the outside, the right buckle (31) is provided with a fourth tie cover plate (311) on the outside, and the right lock buckle (32) is provided with a fifth tie cover plate (321) on the outside. The left buckle mechanism (12) on the left side of the main buckle seat (1) includes: a left first buckle groove (121), a left second buckle groove (122), and a left third buckle groove (123) arranged sequentially on the left side of the main buckle seat (1); a left locking tongue groove (124) is arranged between the left second buckle groove (122) and the left third buckle groove (123); a left buckle seat (212) is provided on the inner side of the second strap cover plate (211) of the left buckle (21); the left buckle seat (212) is provided with a left first buckle tenon (2121), a left second buckle tenon (2122), and a left third buckle tenon (2123) protruding inward in sequence; and a left locking tongue groove (124) is provided between the left second buckle tenon (2122) and the left third buckle tenon (2123). A left latch slot (2125) is provided, and a left latch groove (2124) and a left latch positioning groove (2126) are respectively provided on both sides of the left latch slot (2125); a left latch seat (222) is provided on the inner side of the third strap cover plate (221) of the left latch (22); a left latch plate (2221) is provided inwardly in the middle of the left latch seat (222), a left latch tenon (2222) is provided on the upper part of the left latch seat (222), and a left latch positioning tenon (2223) is provided on the lower part of the left latch seat (222); the left latch plate (2221) is inserted into the left latch slot (2125) in the left latch seat (212), and the left latch seat (222) is positioned in the left latch slot (2125). The left fastener assembly is fixed to the outside of the left buckle seat (212). The third tie plate (221) and the second tie plate (211) are connected to each other. The left buckle tenon (2222) and the left third buckle tenon (2123) are combined together. The inner side of the left buckle tenon (2222) is embedded in the left buckle groove (2124). The left buckle positioning tenon (2223) is embedded in the left lock tongue positioning groove (2126) and combined with the left second buckle tenon. The left first buckle tenon (2121), the left second buckle tenon (2122), and the left third buckle tenon (2123) are respectively inserted into the left first buckle groove (121), the left second buckle groove (122), and the left third buckle groove (123), thus securing the left fastener assembly. 2) The left buckle mechanism (12) is fixed to the main buckle seat (1), and the third tie cover plate (221) and the second tie cover plate (211) are fixed to the left side of the first tie cover plate (11); the upper inner side of the left locking tongue slot (124) is provided with a left locking tongue buckle (1241), the middle of the left locking tongue plate (2221) is provided with a left locking groove (22211), the upper front end of the left locking tongue plate (2221) is provided with a left locking tongue guide section (22212), the left locking tongue guide section (22212) is inserted into the left locking tongue slot (124) in the left buckle mechanism (12) until the left locking groove (22211) and the left locking tongue buckle (1241) are locked together; The right latching mechanism (13) on the right side of the main latch (1) includes: a right first latching groove (131), a right second latching groove (132), and a right third latching groove (133) arranged sequentially on the right side of the main latch (1); a right locking tongue groove (134) arranged between the right second latching groove (132) and the right third latching groove (133); a right latching seat (312) is provided on the inner side of the fourth tie cover plate (311) of the right latch (31); the right latching seat (312) is provided with a right first latching tenon (3121), a right second latching tenon (3122), and a right third latching tenon (3123) protruding inward in sequence; and a right latching tenon (3122) and a right third latching tenon (3123) are provided between the right second latching tenon (3122) and the right third latching tenon (3123). A right latch slot (3125) is provided; a right latch groove (3124) and a right latch positioning groove (3126) are respectively provided on both sides of the right latch slot (3125); a right latch seat (322) is provided on the inner side of the fifth strap cover plate (321) of the right latch (32); a right latch plate (3221) is provided inwardly in the middle of the right latch seat (322), a right latch tenon (3222) is provided on the upper part of the right latch seat (322), and a right latch positioning tenon (3223) is provided on the lower part of the right latch seat (322); the right latch plate (3221) is inserted into the right latch slot (3125) in the right latch seat (3122), and the right latch seat (3224) is placed in the right latch slot (3125) in the right latch seat (3125). 2) Fixed on the outside of the right buckle seat (312), the fifth tie plate (321) and the fourth tie plate (311) are connected to each other, the right lock tenon (3222) and the right third lock tenon (3123) are combined together, the inner side of the right lock tenon (3222) is embedded in the right lock groove (3124); the right lock positioning tenon (3223) is embedded in the right lock tongue positioning groove (3126) and combined with the right second lock tenon, the left first lock tenon (3121), the left second lock tenon (3122) and the left third lock tenon (3123) are respectively inserted into the right first lock groove (131), the right second lock groove (132) and the right third lock groove (133), and the right fastener assembly is completed. (3) The right buckle mechanism (13) is fixed to the main buckle seat (1), and the fifth tie cover plate (321) and the fourth tie cover plate (311) are fixed to the right side of the first tie cover plate (11); the upper part of the inner side of the right lock tongue groove (134) is provided with a right lock tongue buckle (1341), the middle part of the right lock tongue plate (3221) is provided with a right locking groove (32211), the upper part of the front end of the right lock tongue plate (3221) is provided with a right lock tongue guide section (32212), the right lock tongue guide section (32212) is inserted into the right lock tongue groove (134) in the right buckle mechanism (13) until the right locking groove (32211) and the right lock tongue buckle (1341) are locked together; A button cavity (14) is provided in the middle of the main buckle (1), and a button (4) is slidably embedded in the button cavity (14); the inner opening of the left locking tongue slot (124) and the left locking tongue buckle (1241) are located on the left side of the button cavity (14), and the right locking tongue slot (134) and the right locking tongue buckle (1341) are located on the right side of the button cavity (14); after the left locking groove (22211) and the left locking tongue buckle (1241) are locked together, the left locking tongue guide section (22212) is inserted into the button cavity (14) from the left side, and after the right locking groove (32211) and the right locking tongue buckle (1341) are locked together, the right locking tongue guide section (32212) is inserted into the button cavity (14) from the right side; the upper and lower sides of the button cavity (14) are respectively provided with limiting slide grooves (141), and a balance plate (142) is provided in the middle of the button cavity (14).

2. The concealed five-point buckle according to claim 1, characterized in that, The first lacing cover (11) has a first lacing side groove (111) on its outer side and a first lacing bottom groove (112) on its bottom; the second lacing cover (211) has a second lacing side groove (2111) on its outer side and a second lacing bottom groove (2112) on its bottom; the third lacing cover (221) has a third lacing side groove (2211) on its outer side and a third lacing bottom groove (2212) on its bottom; the fourth lacing cover (311) has a fourth lacing side groove (3111) on its outer side and a fourth lacing bottom groove (3112) on its bottom; the fifth lacing cover (321) has a fifth lacing side groove (3211) on its outer side and a fifth lacing bottom groove (3212) on its bottom; the lacing straps in the five directions are respectively threaded between the corresponding side grooves and bottom grooves, and the thickness and width of each lacing strap are equivalent to the size of the corresponding lacing groove.

3. The concealed five-point buckle according to claim 1, characterized in that, The upper inner wall of the left locking tongue slot (124) is provided with a left locking tongue guide energy storage slope (1242), and the upper front end of the left locking tongue plate (2221) is provided with a left locking tongue guide section (22212) with a slope. The left locking tongue guide section (22212) is inserted into the left locking tongue slot (124) in the left buckling mechanism (12) along the left locking tongue guide energy storage slope (1242) until the left locking groove (22211) and the left locking tongue buckle (1241) are locked together. The upper inner wall of the right locking tongue slot (134) is provided with a right locking tongue guide energy storage slope (1342). The upper front end of the right locking tongue plate (3221) is provided with a right locking tongue guide section (32212) with a slope. The right locking tongue guide section (32212) is inserted into the right locking tongue slot (134) in the right buckle mechanism (13) along the right locking tongue guide energy storage slope (1342) until the right locking groove (32211) and the right locking tongue buckle (1341) are locked together.

4. The concealed five-point buckle according to claim 1, characterized in that, A left locking positioning recess (2127) is provided in the left locking tongue positioning groove (2126) and on the lower side of the left third locking tenon (2123). A left locking positioning protrusion (2224) is provided in the middle of the left locking tenon (2222) and at the end of the left locking positioning tenon (2223). The left locking positioning protrusion (2127) and the left locking positioning recess (2224) are engaged accordingly. A right lock positioning recess (3127) is provided in the right lock tongue positioning groove (3126) and on the lower side of the right third latch tenon (3123). A right lock positioning protrusion (3224) is provided in the middle of the right lock tenon (3222) and at the end of the right lock positioning tenon (3124). The right lock positioning protrusion (3224) and the right lock positioning recess (3127) are engaged accordingly.

5. The concealed five-point buckle according to claim 1, characterized in that, A left stress-enhancing groove (2128) is provided on the upper inner wall of the left locking tongue slot (2125); a left stress-enhancing rib (2225) is provided at the root of the left locking tongue plate (2221); the left stress-enhancing rib (2225) is inserted into the left stress-enhancing groove (2128) to enhance the connection strength between the left latch (22) and the left buckle (21); A right stress-enhancing groove (3128) is provided on the upper inner wall of the right locking tongue slot (3125); a right stress-enhancing rib (3225) is provided at the root of the right locking tongue plate (3221); the right stress-enhancing rib (3225) is inserted into the right stress-enhancing groove (3128) to enhance the connection strength between the right latch (32) and the right buckle (31).

6. The concealed five-point buckle according to claim 1, characterized in that, The button (4) is provided with a limiting rib (41) on the side corresponding to the limiting slide groove (141). The lower end of the limiting rib (41) is provided with a limiting hook (42). The limiting hook (42) is inserted into the limiting slide groove (141) to limit the up and down sliding position of the button (4) in the button cavity (14).

7. The concealed five-point buckle according to claim 6, characterized in that, The outer side of the limiting hook (42) is provided with a button assembly guide slope (421), and the button (4) is guided into the button cavity (14) by the button assembly guide slope (421).

8. The concealed five-point buckle according to claim 1, characterized in that, A pressing plate (43) is provided on the top surface of the button (4). Two top plates (431) are symmetrically protruding downward on the left and right sides of the pressing plate (43) and corresponding to the left and right locking tongue guide sections (22212) and (32212) of the button cavity (14). Balance support plates (432) are respectively provided on the inner side of the two top plates (431). A balance limiting groove (433) adapted to the position and thickness of the balance plate (142) is provided in the middle of the balance support plate (432). The top plate (431) abuts against the left locking tongue guide section (22212) and (32212) of the button cavity (14).

9. The concealed five-point buckle according to claim 8, characterized in that, To ensure that the top plates (431) on both sides can move simultaneously when the button (4) slides down, the balance plate (142) is inserted into the balance limiting groove (433) between the balance support plate (432). The tilt angle of the pressing plate (43) is limited by adjusting the gap between the balance plate (142) and the balance support plate (432). If the angle exceeds the sliding range, the balance plate (142) and the balance support plate (432) will abut against each other and be locked, thus restricting the top plate from sliding down.

10. The concealed five-point buckle according to claim 1, characterized in that, The panel on the top inner side of the button (4) is separated to form a replaceable split panel (46). Split panel slots (44) are provided on the top and bottom sides of the button (4). Split panel support bosses (45) are provided on the left and right sides of the button (4). Split panel fitting points (461) are provided on the side of the split panel (46) corresponding to the split panel slots (44). Split panel support positions (462) are provided on the side of the split panel (46) corresponding to the split panel support bosses (45). The split panel fitting points (461) are inserted into the corresponding split panel slots (44). The split panel support positions (462) are pressed against the upper side of the split panel support bosses (45).

Images