Air curtain connection structure

Abstract

The application discloses a kind of air curtain connecting structure, including buckle and lug, buckle includes buckle piece, buckle piece includes bottom panel and two buckle side walls extending from bottom panel, first part between two buckle side walls forms first hollow part;Lug includes lug main body, lug main body is strip structure, and a plurality of through holes are arranged at intervals, a plurality of through holes include first through hole, the inner wall of first through hole is equipped with the first protruding portion extending to the inside of first through hole, the width of first protruding portion matches the width of first hollow part;Wherein, after folding lug main body makes that a plurality of through holes are axially correspondingly arranged, buckle piece is in turn penetrated a plurality of through holes, and first protruding portion is clamped in the inside of first hollow part, so that two buckle side walls are limited by first protruding portion and rotate in a plurality of through holes.Buckle piece can be limited in a plurality of through holes, solve the problem that relative rotation between existing air curtain lug and buckle is prone to occur.

Description

Technical Field

[0001] The present invention relates to the technical field of air curtain fixing equipment, and in particular to an air curtain connection structure. Background Art

[0002] Curtain airbag hooks are typically located on side curtain airbags. They are used to secure the side curtain airbags to the vehicle's side structure after a clip is inserted through them. The hooks typically have circular holes in the hooks, which fit through the holes and engage with the vehicle's side structure. The hooks then attach to the side curtain airbags, securing them to the vehicle's side structure.

[0003] In the existing technology, after the buckle passes through the round hole on the air curtain ear, the air curtain ear and the buckle will rotate relative to each other during transportation, which will cause the employees of the vehicle manufacturer to adjust the direction of the buckle when loading the vehicle so that the buckle can be connected with the side structure of the vehicle. This undoubtedly increases the workload of the employees of the vehicle manufacturer and reduces the loading efficiency of the employees of the vehicle manufacturer.

[0004] Based on this, an air curtain connection structure is needed to solve the problem that relative rotation is easy to occur between the existing air curtain hook and the buckle. Summary of the Invention

[0005] In view of this, an embodiment of the present invention provides an air curtain connection structure to at least solve the problem of relative rotation easily occurring between the existing air curtain hook and the buckle.

[0006] The embodiments of the present invention provide the following technical solutions:

[0007] An embodiment of the present invention provides an air curtain connection structure, comprising a buckle and a hook, wherein the buckle comprises a buckle member, the buckle member comprises a bottom panel and two buckle side walls extending from the bottom panel, and a first portion between the two buckle side walls forms a first hollow portion;

[0008] The hanging ear includes a hanging ear body, which is a bar-shaped structure and has a plurality of through holes arranged at intervals. The plurality of through holes includes a first through hole, an inner wall of the first through hole is provided with a first protrusion extending into the interior of the first through hole, and a width of the first protrusion matches a width of the first hollow portion;

[0009] Among them, after folding the ear hook body so that the multiple through holes are axially arranged in correspondence, the fastener passes through the multiple through holes in sequence, and the first protrusion is clamped inside the first hollow part, so that the two fastener side walls limit the rotation of the fastener in the multiple through holes through the first protrusion.

[0010] Furthermore, a clamping groove is formed between the side wall of the first protrusion and the side wall of the first through hole, and the clamping groove is used to clamp the buckle side wall.

[0011] Furthermore, a second hollow portion is formed in the second portion between the two snap side walls, and a fitting portion is provided in the middle portion of each of the two snap side walls. The two snap side walls are fitted together through the fitting portion, and one of the fitting portions extends toward the second hollow portion to form an extended convex portion.

[0012] The plurality of through holes include a second through hole, wherein a first avoidance groove is formed on an inner wall of the second through hole, and two inner convex portions are respectively formed on both sides of the first avoidance groove, and the two inner convex portions respectively extend toward a middle portion of the second through hole;

[0013] The second through hole is arranged corresponding to the second hollow portion, the first avoidance groove avoids the extended protrusion, and the two inner protrusions are clamped between the extended protrusion and the two buckle side walls to limit the buckle from rotating in the multiple through holes.

[0014] Furthermore, a side of the inner convex portion close to the edge of the buckle side wall is provided with an avoidance angle for avoiding the edge of the buckle side wall.

[0015] Furthermore, the bottom panel further includes an opening located between the two snap side walls;

[0016] The buckle further includes a pressing member, which includes two oppositely arranged extensions and a switch portion located at the end of the extensions, the two extensions passing through the opening and entering between the two buckle side walls, so that the two switch portions respectively extend from the holes provided in the buckle side walls;

[0017] The second through hole further includes two second avoidance grooves, which are respectively formed on two inner walls of the second through hole and are used to avoid the portions of the two switch parts extending from the hole grooves of the buckle side wall.

[0018] Furthermore, the plurality of through holes further include a third through hole, the third through hole including two third avoidance grooves, and the two third avoidance grooves are respectively opened on two inner walls of the third through hole;

[0019] Wherein, after the ear hook body is folded so that the multiple through holes are axially arranged correspondingly, the third avoidance groove avoids the parts of the two switch parts extending from the hole grooves of the buckle side wall.

[0020] Furthermore, there are two third through holes;

[0021] The ear mount body further includes:

[0022] The first folding weakening line is arranged on the ear hook body and is located between the two third through holes, so as to facilitate folding the ear hook body so that the two third through holes overlap, thereby increasing the thickness of the folded ear hook body.

[0023] Furthermore, the ear hook body is a double-layer structure to increase the thickness of the ear hook body after folding; and / or

[0024] There are two ear hook bodies, which are mirror-imaged along the length direction of the ear hook bodies, and the two ear hook bodies are configured to overlap and fold along the symmetry axis of the two ear hook bodies, so that the multiple through holes on the two ear hook bodies overlap with each other; and / or

[0025] A second folding weakening line is provided at the symmetry axis of the two ear hook bodies.

[0026] Furthermore, the ear hook body also includes a plurality of openings, which are arranged in the part of the ear hook body that is attached to the bottom panel after folding, and are used to allow the two side edges or four corners of the bottom panel to enter to hide the two side edges or four corners of the bottom panel.

[0027] A second aspect of the present invention further provides an air curtain connection structure, comprising a buckle and a hook, the buckle comprising a buckle member, the buckle member comprising a bottom panel and two buckle side walls extending from the bottom panel, the second portions of the two buckle side walls forming a second hollow portion, the middle portions of the two buckle side walls respectively having a fitting portion, the two buckle side walls being fitted together by the fitting portion, wherein one of the fitting portions extends into the second hollow portion to form an extending protrusion;

[0028] The hanging ear includes a hanging ear body, which is a bar-shaped structure and has a plurality of through holes arranged at intervals, and is characterized in that:

[0029] The multiple through holes include a second through hole, the inner wall of the second through hole is formed with a first avoidance groove, two inner convex parts are formed on both sides of the first avoidance groove, the two inner convex parts extend toward the middle part of the second through hole respectively, and the inner convex part is provided with an avoidance angle on one side close to the edge of the buckle side wall.

[0030] Furthermore, the bottom panel further includes an opening located between the two snap side walls;

[0031] The buckle further includes a pressing member, which includes two oppositely arranged extensions and a switch portion located at the end of the extensions, the two extensions passing through the opening and entering between the two buckle side walls, so that the two switch portions respectively extend from the holes provided in the buckle side walls;

[0032] The second through hole further includes two second avoidance grooves, which are respectively formed on two inner walls of the second through hole and are used to avoid the portions of the two switch parts extending from the through hole of the buckle side wall.

[0033] Compared with the prior art, the at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:

[0034] An air curtain connection structure of the present invention is configured such that the main body of the hook is configured as a strip structure and a plurality of through holes are provided. After the main body of the hook is folded, the fastener can pass through the plurality of through holes in sequence, and the first protrusion provided on the first through hole enters the first hollow portion on the fastener, thereby forming two fastener side walls of the first hollow portion that can cooperate with the first protrusion to restrict the fastener within the plurality of through holes, thereby preventing the fastener from rotating within the plurality of through holes, thereby solving the problem of relative rotation between the existing air curtain hook and the fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] Figure 1 is a side view of a buckle according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic structural diagram of a mounting ear body according to an embodiment of the present invention;

[0038] Figure 3 This is an assembly diagram of the buckle and the ear according to an embodiment of the present invention;

[0039] Figure 4 is a schematic structural diagram of a first through hole according to an embodiment of the present invention;

[0040] Figure 5 is a schematic structural diagram of a second through hole according to an embodiment of the present invention;

[0041] Figure 6 is a schematic structural diagram of a third through hole according to an embodiment of the present invention;

[0042] Figure 7 Schematic diagram of the structure of the mounting ear according to an embodiment of the present invention (I);

[0043] Figure 8 This is a structural schematic diagram (2) of the hanging ear according to an embodiment of the present invention.

[0044] The accompanying drawings of the present invention are as follows:

[0045] 10. Buckle; 11. Buckle member; 111. Bottom panel; 112. Buckle side wall; 113. First hollow portion; 114. Second hollow portion; 115. Fitting portion; 116. Extended protrusion; 12. Pressing member; 121. Extended portion; 122. Switch portion; 123. Pressing portion; 13. Buckle convex corner;

[0046] 20. Hanging ear; 21. Hanging ear body; 211. First through hole; 2111. First protrusion; 2112. Slot; 212. Second through hole; 2121. First avoidance groove; 2122. Inner protrusion; 2123. Avoidance angle; 2124. Second avoidance groove; 213. Third through hole; 2131. Third avoidance groove; 214. Second folding weakening line; 215. Opening. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0048] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0049] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0050] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0051] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0052] The ear 20 is usually a strip-shaped structure, and the ear hole is also usually a round hole structure. After the ear 20 is inserted into the buckle 10 and installed on the air curtain, the relative position of the ear 20 and the buckle 10 will change during the air curtain process, causing the employees of the vehicle manufacturer to adjust the ear 20 and the buckle 10 when loading the vehicle, which increases the workload of the employees of the vehicle manufacturer and reduces their work efficiency.

[0053] In addition, since the ear hole does not avoid the push switch on the buckle 10, during transportation, the push switch is easily squeezed by the side wall of the ear hole, causing the buckle 10 to be stuck and unable to be installed again, which further causes the air curtain to be unable to be installed smoothly.

[0054] Therefore, in order to facilitate the OEM's assembly personnel to safely, accurately and quickly install the air curtain on the vehicle body, the vehicle manufacturer not only puts forward new requirements for the air curtain to prevent the metal sharp corners from being exposed, but also requires the air curtain supplier to design a limit for the installation buckle 10 (to prevent the buckle 10 from rotating or shifting in the through hole) and a design to prevent the plastic part from being pressed in (to prevent the push-button switch from being pressed in). When using a conventional hanging ear 20 with a circular mounting hole, in order to limit the installation buckle 10 and prevent the plastic part from being pressed in, a plastic anti-rotation clip with a hard rectangular mounting hole is generally added. It can effectively prevent the buckle 10 from rotating and the plastic part from being pressed in. However, this will increase the material cost and the labor cost of plastic part installation. Although effective, it is not economical.

[0055] Based on this, this specification proposes a solution: Figures 1 to 3 As shown, an air curtain connection structure of the present invention provides a plurality of special-shaped through holes on the hook body 21, and uses the special-shaped through holes to fit the structure of the buckle 10 while avoiding compression of the press switch on the press member 12. It can also form multiple rotation constraints on the buckle 11, thereby achieving the function of limiting the buckle 10 and preventing the press switch from being pressed in.

[0056] Furthermore, by providing a plurality of openings 215 on the ear hook body 21 , the openings 215 can accommodate the metal corners on the bottom panel 111 of the fastener 11 to prevent the metal corners from being exposed, thereby protecting the vehicle occupants and the airbag.

[0057] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0058] Example 1

[0059] like Figures 1 to 4 As shown, an air curtain connection structure of an embodiment of the present invention includes a clip 10 and a hook 20, the clip 10 includes a clip part 11, the clip part 11 includes a bottom panel 111 and two clip side walls 112 extending from the bottom panel 111, and the first part between the two clip side walls 112 forms a first hollow part 113.

[0060] The fastener 11 is used to cooperate with the mounting part on the vehicle body to install the hanging ear 20 on the vehicle body.

[0061] The snap fastener 11 is integrally formed. Specifically, the two ends of the bottom panel 111 of the snap fastener 11 are bent to one side to form two snap fastener side walls 112 of the snap fastener 11. The portions of the two snap fastener side walls 112 near the bottom panel 111 are the first portions. The two first portions are spaced apart and located on either side of an opening provided in the bottom panel 111 to form a first hollow portion 113.

[0062] Furthermore, the hanging ear 20 includes a hanging ear body 21 . The hanging ear body 21 is a bar-shaped structure and has a plurality of through holes arranged at intervals.

[0063] When installing the hanging ear 20 , the hanging ear body 21 needs to be folded, and the multiple through holes need to be connected to each other, so that the fastener 11 can pass through the multiple through holes and be installed inside the multiple through holes.

[0064] For example, when the ear hook body 21 is folded so that the centers of the multiple through holes are on the same axis, the fastener 11 is passed through the multiple through holes in sequence. At this time, under the restriction of the multiple through holes, the fastener 11 is initially limited to the multiple through holes.

[0065] The plurality of through holes may include a plurality of irregular-shaped through holes or a combination of irregular-shaped through holes and round holes.

[0066] Furthermore, the multiple through holes include a first through hole 211, the inner wall of the first through hole 211 is provided with a first protrusion 2111 extending into the interior of the first through hole 211, and the width of the first protrusion 2111 matches the width of the first hollow portion 113; wherein, after the ear hook body 21 is folded so that the multiple through holes are axially arranged correspondingly, the fastener 11 passes through the multiple through holes in sequence, and the first protrusion 2111 is clamped in the interior of the first hollow portion 113, so that the two fastener side walls 112 limit the rotation of the fastener 11 in the multiple through holes through the first protrusion 2111.

[0067] The basic hole of the first through hole 211 may be a circular hole or a rectangular hole to match the shape of the two buckle side walls 112 of the buckle 10 .

[0068] The first protrusion 2111 extends toward the middle of the first through hole 211 and has a certain width, so that the first protrusion 2111 can be inserted into the first hollow portion 113 and connected with the first hollow portion 113 .

[0069] Among them, the width of the first protrusion 2111 can be slightly smaller than the width of the first hollow part 113, so that the first protrusion 2111 can be inserted into the first hollow part 113; the width of the first protrusion 2111 can be equal to the width of the first hollow part 113, so that the first protrusion 2111 is just stuck in the first hollow part 113.

[0070] The first protrusion 2111 may be a rectangular structure or an inverted trapezoidal structure, so that the two edges of the first protrusion 2111 can cooperate with the buckle side wall 112 to limit the buckle 11 .

[0071] Furthermore, there are two first protrusions 2111 that are opposite to each other and extend toward the middle portion of the first through hole 211 to be clamped on both sides of the first hollow portion 113 to increase the limiting ability of the first protrusions 2111 on the buckle 10.

[0072] There may be one or more first through holes 211 to increase the limiting strength of the latch 11 .

[0073] For example, when there are two first through holes 211, after the ear hook body 21 is folded, the two first through holes 211 are overlapped so that the two first protrusions 2111 in the two first through holes 211 are both stuck in the first hollow part 113, thereby increasing the limiting ability of the fastener 11.

[0074] In this embodiment, the shape of the first through hole 211 is changed so that the first protrusion 2111 cooperates with the snap side wall 112 of the first hollow portion 113 to limit the snap member 11, thereby preventing relative rotation between the snap member 11 and the ear hook body 21.

[0075] Furthermore, a clamping groove 2112 is formed between the side wall of the first protrusion 2111 and the side wall of the first through hole 211 , and the clamping groove 2112 is used to clamp the buckle side wall 112 .

[0076] Among them, the width of the buckle 10 matches the width of the buckle side wall 112. After the buckle 11 enters the first through hole 211, the buckle side wall 112 is clamped in the slot 2112 to limit the buckle side wall 112 through the slot 2112 to prevent the buckle 11 from rotating in the first through hole 211.

[0077] Furthermore, a second hollow portion 114 is formed in the second portion between the two snap side walls 112 , and a fitting portion 115 is respectively provided in the middle portion of the two snap side walls 112 . The two snap side walls 112 are fitted together through the fitting portion 115 , wherein one fitting portion 115 extends toward the second hollow portion 114 to form an extended protrusion 116 .

[0078] Specifically, the portion between the two snap side walls 112 away from the bottom panel 111 is a second hollow portion 114, and the portions of the two snap side walls 112 away from the bottom panel 111 are also spaced apart to form the second hollow portion 114; between the first portion and the second portion of the snap side wall 112 is the middle portion of the snap side wall 112, and the middle portion of the snap side wall 112 is interlocked through the interlocking portion 115 so that the two snap side walls 112 are connected to each other.

[0079] The extending protrusion 116 may be a triangular structure.

[0080] Furthermore, the end of the snap side wall 112 is folded toward the direction of the bottom panel 111 to the second hollow portion 114 and then flanged to form a snap convex corner 13. The snap convex corner 13 can be used to connect to the vehicle body, and when the hook body 21 is folded and put on the fastener 11, it can block the folded hook body 21 to prevent the hook body 21 from detaching from the fastener 11 during transportation.

[0081] Preferably, the folded ear hook body 21 is inserted between the buckle convex corner 13 and the bottom panel 11 .

[0082] Furthermore, if Figure 5 As shown, the multiple through holes include a second through hole 212, a first avoidance groove 2121 is formed on the inner wall of the second through hole 212, and two inner protrusions 2122 are respectively formed on both sides of the first avoidance groove 2121, and the two inner protrusions 2122 respectively extend toward the middle part of the second through hole 212; wherein, the second through hole 212 is arranged corresponding to the second hollow portion 114, the first avoidance groove 2121 avoids the extension protrusion 116, and the two inner protrusions 2122 are clamped between the extension protrusion 116 and the two buckle side walls 112 to limit the rotation of the buckle 11 in the multiple through holes.

[0083] The second through hole 212 may be a circular hole or a rectangular hole.

[0084] The width of the first avoiding groove 2121 is equal to the maximum width of the extending protrusion 116 , so that the first avoiding groove 2121 can completely avoid the extending protrusion 116 .

[0085] The inner convex part 2122 is located on both sides of the first avoiding groove 2121, and can extend into the second hollow part 114 after the first avoiding groove 2121 avoids the extension convex part 116, so as to limit the buckle 11 in cooperation with the buckle side wall 112 forming the second hollow part 114.

[0086] The inner convex part 2122 can be triangular or other shapes, so as to be inserted between the extension convex part 116 and the buckle side wall 112.

[0087] The number of the first avoiding groove 2121 is the same as that of the extension convex part 116, for example, when the extension convex part 116 is two and oppositely arranged, the first avoiding groove 2121 is also two and arranged on the opposite sides of the first through hole 211, and the inner convex part 2122 is four.

[0088] When the first avoiding groove 2121 avoids the extension convex part 116, the extension convex part 116 in cooperation with the first avoiding groove 2121 can also limit the buckle 11. Specifically, when the buckle 11 rotates, the two side walls of the first avoiding groove 2121 can block the extension convex part 116 from rotating with the buckle 11.

[0089] Further, the inner convex part 2122 is provided with an avoiding inclination 2123 on the side close to the edge of the buckle side wall 112, which is used to avoid the edge of the buckle side wall 112, so as to avoid the part of the inner convex part 2122 contacting the edge of the buckle side wall 112 from turning outwards or failing to connect or contact with the edge of the buckle side wall 112.

[0090] Further, the bottom panel 111 also includes an opening between the two buckle side walls 112.

[0091] The buckle 10 also includes a pressing piece 12, which includes two oppositely arranged extension parts 121 and a switch part 122 at the end of the extension part 121. The two extension parts 121 pass through the opening and enter between the two buckle side walls 112, so that the two switch parts 122 respectively extend from the hole groove of the buckle side wall 112, and the switch part 122 is located in the same plane as at least part of the second hollow part 114.

[0092] The hole groove is opened along the length direction of the buckle side wall 112.

[0093] The pressing piece 12 includes a pressing part 123 and two extension parts 121 arranged on the pressing part 123, and the switch part 122 is arranged on the side away from the pressing part 123 of the two extension parts 121.

[0094] One end of the extension portion 121 is fixedly mounted on the pressing portion 123, and the other ends of the two extension portions 121 can move closer together when pressed. The switch portion 122 is a plate-shaped structure and is arranged along the length of the extension portion 121. It at least partially extends out of the hole slot defined in the snap side wall 112 to be located outside the two snap side walls 112.

[0095] Furthermore, the second through hole 212 further includes two second avoiding grooves 2124 . The two second avoiding grooves 2124 are respectively formed on two inner walls of the second through hole 212 to avoid portions of the two switch parts 122 extending from the holes of the buckle side wall 112 .

[0096] The size of the second avoiding groove 2124 is related to the size of the protruding portion of the switch portion 122 .

[0097] Among them, the present application sets a second avoidance groove 2124 on the second through hole 212, so that the first avoidance groove 2121 is used in the second through hole 212 to avoid the extension protrusion 116 and the inner protrusion 2122 is clamped between the extension protrusion 116 and the snap side wall 112, and the second avoidance groove 2124 can also be used to avoid the switch part 122, thereby preventing the switch part 122 from being pressed or squeezed, and solving the problem in the prior art that the switch part 122 and at least part of the second hollow part 114 are located on the same plane, resulting in the side wall of the second through hole 212 squeezing or pressing the switch part 122, and then squeezing or pressing the switch part 122 between the two snap side walls 112.

[0098] Among them, after the first avoidance groove 2121 and the second avoidance groove 2124 are provided in the second through hole 212 of the present application, the second through hole 212 as a whole is a cross-shaped structure, so as to avoid the extending protrusion 116 and the switch portion 122.

[0099] Furthermore, if Figure 6 As shown, the multiple through holes also include a third through hole 213, and the third through hole 213 includes two third avoidance grooves 2131, and the two third avoidance grooves 2131 are respectively opened on the two inner walls of the third through hole 213; wherein, after the ear hook body 21 is folded so that the multiple through holes are axially correspondingly arranged, the third avoidance grooves 2131 avoid the parts of the two switch parts 122 extending from the hole grooves of the buckle side wall 112.

[0100] The third through hole 213 is used to avoid the remaining portion of the switch portion 122 .

[0101] Specifically, the first through hole 211 is folded into the first part of the latch 11, the second through hole 212 is folded into the second part of the latch 11, and the third through hole 213 is folded into the middle part of the latch 11, and avoids the switch part 122 through the third avoidance groove 2131 to prevent the third through hole 213 from pressing the switch part 122.

[0102] More specifically, when the ear hook 20 and the buckle 10 are assembled and installed, the ear hook body 21 is folded so that the first through hole 211 is folded to the bottom, the second through hole 212 is folded to the top, and the third through hole 213 is folded between the first through hole 211 and the second through hole 212. Then, the buckle 11 is inserted into the first through hole 211, the third through hole 213 and the second through hole 212 in sequence, and the first protrusion 2111 of the first through hole 211 is snapped into the buckle 11. In the first hollow portion 113 of the fastener 11, the third avoidance groove 2131 of the third through hole 213 avoids the switch portion 122, and the first avoidance groove 2121 avoids the extension protrusion 116, so that the inner protrusion 2122 is inserted into the second hollow portion 114 and is stuck between the extension protrusion 116 and the buckle side wall 112, so that the fastener 11 is limited and cannot rotate under the action of the inner protrusion 2122, the first protrusion 2111, and the first avoidance groove 2121.

[0103] In some embodiments, two third through holes 213 may be provided to increase the thickness of the middle folded portion of the ear hook body 21 and avoid the switch portion 122 .

[0104] Furthermore, the ear hook body 21 also includes a first folding weakening line, which is arranged on the ear hook body 21 and located between the two third through holes 213, for facilitating folding the ear hook body 21 so that the two third through holes 213 overlap, thereby increasing the thickness of the folded ear hook body 21.

[0105] Specifically, since the middle portion of the latch 11 is thicker, at least two third through holes 213 can be provided so that they can correspond to the middle portion of the latch 11 and avoid the switch portion 122 after the ear hook body 21 is folded.

[0106] The first folding weakened line is used to facilitate folding of the ear hook body 21 and prevent the ear hook body 21 from forming a bulge at the folding line after being folded.

[0107] The first folding weakening line may be a line hole structure.

[0108] In some of these embodiments, Figures 7-8 As shown, the ear hook body 21 has a double-layer structure to increase the thickness of the ear hook body 21 after folding.

[0109] For example, the double-layer ear hook body 21 can be an integral structure, which can be folded left and right to increase the overall thickness of the ear hook body 21, thereby increasing the thickness of the first protrusion 2111 and the inner protrusion 2122 to increase the limiting ability of the buckle 11.

[0110] For another example, the double-layer ear hook body 21 may be formed by sewing two sub-pieces together to form a double-layer structure.

[0111] Furthermore, there are two hanging ear bodies 21, which are mirror-imaged along the length direction of the hanging ear bodies 21. The two hanging ear bodies 21 are configured to overlap and fold along the symmetry axis of the two hanging ear bodies 21, so that multiple through holes on the two hanging ear bodies 21 overlap with each other.

[0112] The ear hook body 21 is provided with two parts, which are also used to increase the overall thickness of the ear hook body 21, so that the ear hook body 21 can completely cover the first hollow part 113 of the fastener 11, the middle part of the fastener 11 and at least part of the second hollow part 114 after being folded.

[0113] After the hanging ear bodies 21 are arranged in a mirror image, the two hanging ear bodies 21 can be folded along the symmetry axis, and then the two hanging ear bodies 21 can be folded synchronously to be put on the fastener 11.

[0114] Furthermore, a second folding weakening line 214 is provided at the symmetry axis of the two hanging ear bodies 21 to facilitate folding of the two hanging ear bodies 21 .

[0115] Preferably, the ear hook body 21 of the present invention is an integrated structure, and there are two ear hook bodies 21 and they are arranged as a mirror structure. At the same time, the ear hook body 21 is arranged as two pieces distributed on the left and right. When folding the ear hook body 21, the ear hook body 21 can first be folded left and right to form a two-layer structure, and then the ear hook body 21 can be folded along the mirror symmetry axis so that the multiple through holes on the two ear hook bodies 21 are arranged one by one. The two ear hook bodies 21 are folded so that the first through hole 211 can correspond to the first hollow part 113 of the fastener 11, the second through hole 212 can correspond to the second hollow part 114, and the third through hole 213 can correspond to the middle part of the fastener side wall 112.

[0116] In some embodiments, the ear hook body 21 also includes multiple openings 215, which are arranged in the part where the ear hook body 21 is folded and attached to the bottom panel 111, so as to allow the two side edges or four corners of the bottom panel 111 to enter, so as to hide the two side edges or four corners of the bottom panel 111 and avoid scratching the air curtain when the air curtain is unfolded.

[0117] The ear hook body 21 may be provided with two openings 215 arranged opposite to each other, so that after the fastener 11 is inserted into the folded ear hook body 21 , the two edges of the bottom panel 111 can be inserted into the two openings 215 to hide the metal corners of the bottom panel 111 .

[0118] The ear hook body 21 may be provided with four openings 215 , and after the fastener 11 is inserted into the folded ear hook body 21 , the four corners of the bottom panel 111 are inserted into the four openings 215 to hide the metal corners of the bottom panel 111 .

[0119] An air curtain connection structure of this embodiment is aligned with the hole on the air curtain lug and sewn into one piece after assembly is completed.

[0120] The elongated hanging ear of the present invention has multiple through holes, and the first through hole of the multiple through holes has first protrusions at the upper and lower ends, and openings on the left and right sides / four corners. The first protrusion is inserted into the first hollow part of the buckle. When the buckle has a tendency to rotate, the interference with the first protrusion and the side wall of the buckle is used to prevent the buckle from rotating, so as to achieve the limitation of the buckle. The metal parts on both sides or the four corners of the buckle can be installed in the openings. One is to assist in achieving the limitation of the buckle, and the other is to wrap the sharp metal corners of the buckle to avoid injuring the loading personnel and scratching the airbag when the airbag is deployed. The second through hole of the multiple through holes is obliquely provided with an inner convex part based on the cross structure, and the second avoidance groove arranged horizontally avoids the plastic part of the buckle from pressing the switch part to prevent the plastic part from being pressed in. The inner convex part cooperates with the second hollow part of the metal part of the buckle. When the buckle has a tendency to rotate, the interference with the extended convex part of the buckle is used to prevent the buckle from rotating, so as to achieve the limitation of the buckle. The third through hole of the plurality of through holes is a simplified version of the second through hole, and has two third transverse avoidance grooves. The third avoidance grooves avoid the snap-on plastic part pressing the switch to prevent the plastic part from being pressed in.

[0121] An air curtain connection structure of the present invention, such as Figures 7-8 As shown, multiple through holes can be flexibly arranged according to the actual needs of different buckles, such as one first through hole or two second through holes, or one first through hole, one second through hole and one third through hole.

[0122] The long strip hanging ear with multiple through holes described in the present invention can be obtained directly by adjusting the existing round hole ear piece. On the one hand, it can replace the plastic anti-rotation clip, and can also realize the limitation of the buckle and prevent the air bag from being scratched, thereby saving material cost and labor cost, conforming to the trend of green environmental protection, and meeting the cost control needs of the enterprise. On the other hand, it avoids the exposure of the metal sharp corners of the buckle without increasing the material cost, prevents harm to the loading personnel, fully meets the high requirements of the main engine factory for production safety, and improves the competitiveness of the enterprise.

[0123] The ear piece of the present invention has the following structural features:

[0124] 1. The long strip of hanging ear has multiple through holes for installing buckles. After folding the long strip of hanging ear several times, align it with the lug on the airbag body and sew it. The folded hanging ear is folded again several times to align the holes, and the buckles are installed in the through holes.

[0125] 2. The through hole on the ear has a hole groove, a protrusion and a clamping part. The hole groove avoids the plastic part from pressing the switch to prevent the plastic part from being pressed in. The protrusion and the clamping part are installed in the hollow part of the buckle. When the buckle tends to rotate, it interferes with the hard part of the buckle to prevent the buckle from rotating, thereby realizing the buckle limit.

[0126] Example 2

[0127] like Figure 1 、 2 As shown in FIG. 4 , an air curtain connection structure of the present invention includes a buckle 10 and a hanging ear 20. The buckle 10 includes a buckle 11. The buckle 11 includes a bottom panel 111 and two buckle side walls 112 extending from the bottom panel 111. The second portion of the two buckle side walls 112 forms a second hollow portion 114. The middle of the two buckle side walls 112 is respectively provided with a fitting portion 115. The two buckle side walls 112 are fitted together through the fitting portion 115, wherein one fitting portion 115 extends into the second hollow portion 114 to form an extension. Extended protrusion 116; the hanging ear 20 includes a hanging ear body 21, the hanging ear body 21 is a strip structure, and a plurality of through holes are arranged at intervals, the plurality of through holes include a second through hole 212, the inner wall of the second through hole 212 is formed with a first avoidance groove 2121, and two inner protrusions 2122 are formed on both sides of the first avoidance groove 2121, and the two inner protrusions 2122 extend respectively toward the middle part of the second through hole 212, and an avoidance inclination angle 2123 is provided on the side of the inner protrusion 2122 close to the edge of the buckle side wall 112.

[0128] Furthermore, the bottom panel 111 also includes an opening located between the two buckle side walls 112; the buckle 10 also includes a pressing member 12, the pressing member 12 includes two oppositely arranged extension portions 121 and a switch portion 122 located at the end of the extension portion 121, the two extension portions 121 pass through the opening into between the two buckle side walls 112, so that the two switch portions 122 respectively extend from the hole grooves opened on the buckle side walls 112; the second through hole 212 also includes two second avoidance grooves 2124, the two second avoidance grooves 2124 are respectively opened on the two inner walls of the second through hole 212, for avoiding the parts of the two switch portions 122 extending from the through hole of the buckle side wall 112.

[0129] In this specification, references to the same or similar parts between the various embodiments can be made to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the product embodiments described later, since they correspond to the methods, the description is relatively simple, and the relevant parts can be referred to the partial description of the system embodiment.

[0130] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A curtain airbag connection structure, comprising a buckle and a hook, wherein the buckle comprises a buckle member, the buckle member comprises a bottom panel and two buckle side walls extending from the bottom panel, a first portion between the two buckle side walls forming a first hollow portion; The hanging ear includes a hanging ear body, which is a bar-shaped structure and has a plurality of through holes arranged at intervals, and is characterized in that: The plurality of through holes include a first through hole, wherein an inner wall of the first through hole is provided with a first protrusion extending toward the interior of the first through hole, and a width of the first protrusion matches a width of the first hollow portion; After the ear hook body is folded so that the multiple through holes are axially aligned, the fastener passes through the multiple through holes in sequence, and the first protrusion is clamped inside the first hollow portion, so that the two side walls of the fastener restrict the rotation of the fastener within the multiple through holes through the first protrusion; A clamping groove is formed between the side wall of the first protrusion and the side wall of the first through hole, and the clamping groove is used to clamp the buckle side wall; A second hollow portion is formed in the second portion between the two snap side walls, and a fitting portion is provided in the middle portion of each of the two snap side walls. The two snap side walls are fitted together through the fitting portion, and one of the fitting portions extends toward the second hollow portion to form an extended convex portion. The plurality of through holes include a second through hole, wherein a first avoidance groove is formed on an inner wall of the second through hole, and two inner convex portions are respectively formed on both sides of the first avoidance groove, and the two inner convex portions respectively extend toward a middle portion of the second through hole; The second through hole is arranged corresponding to the second hollow portion, the first avoidance groove avoids the extended protrusion, and the two inner protrusions are clamped between the extended protrusion and the two buckle side walls to limit the buckle from rotating in the multiple through holes.

2. The air curtain connection structure according to claim 1, characterized in that: A side of the inner convex portion close to the edge of the buckle side wall is provided with an avoidance angle for avoiding the edge of the buckle side wall.

3. The air curtain connection structure according to claim 1, characterized in that: The bottom panel further includes an opening located between the two snap side walls; The buckle further includes a pressing member, which includes two oppositely arranged extensions and a switch portion located at the end of the extensions, the two extensions passing through the opening and entering between the two buckle side walls, so that the two switch portions respectively extend from the holes provided in the buckle side walls; The second through hole further includes two second avoidance grooves, which are respectively formed on two inner walls of the second through hole and are used to avoid the portions of the two switch parts extending from the hole grooves of the buckle side wall.

4. The air curtain connection structure according to claim 3, characterized in that: The plurality of through holes further includes a third through hole, the third through hole including two third avoidance grooves, and the two third avoidance grooves are respectively opened on two inner walls of the third through hole; Wherein, after the ear hook body is folded so that the multiple through holes are axially arranged correspondingly, the third avoidance groove avoids the parts of the two switch parts extending from the hole grooves of the buckle side wall.

5. The air curtain connection structure according to claim 4, characterized in that: There are two third through holes; The ear mount body further includes: The first folding weakening line is arranged on the ear hook body and is located between the two third through holes, so as to facilitate folding the ear hook body so that the two third through holes overlap, thereby increasing the thickness of the folded ear hook body.

6. The air curtain connection structure according to any one of claims 1 to 5, characterized in that: The ear hook body has a double-layer structure to increase the thickness of the ear hook body after folding; and / or There are two ear hook bodies, which are mirror-imaged along the length direction of the ear hook bodies, and the two ear hook bodies are configured to overlap and fold along the symmetry axis of the two ear hook bodies, so that the multiple through holes on the two ear hook bodies overlap with each other; and / or A second folding weakening line is provided at the symmetry axis of the two ear hook bodies.

7. The air curtain connection structure according to claim 6, characterized in that: The ear hook body further includes a plurality of openings, which are arranged at the portion of the ear hook body attached to the bottom panel after folding, and are used to allow the two side edges or four corners of the bottom panel to enter, so as to hide the two side edges or four corners of the bottom panel.

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