Air curtain wrapping cloth and safety air curtain

Abstract

The utility model discloses air curtain wrapping cloth and a safety air curtain. The air curtain wrapping cloth comprises a main cloth piece, a first connecting part and a second connecting part. Wherein the first connecting part is arranged at the first end of the main cloth piece; the first connecting part is arranged at the first end of the main cloth piece, the second connecting part is arranged at the second end of the main cloth piece, the second connecting part is connected with the first connecting part when the main cloth piece is bent so as to be matched with the main cloth piece and the first connecting part to form a wrapping structure, and the second connecting part is separated from the first connecting part when the wrapping structure is subjected to impact force generated when the air curtain is unfolded. No adhesive tape needs to be wound on the gas generator and the gas curtain, and the problems that in the prior art, in order to avoid falling of the gas curtain, manual adhesive tape winding is difficult, and the adhesive tape is not high in strength and prone to breakage are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety air curtains, in particular to an air curtain wrapping cloth and a safety air curtain. Background Art

[0002] An air bag is usually installed at the air inlet of an existing air curtain, and when the air bag and the air curtain are in the unfolded state, the air bag is located below the air inlet of the air curtain. The folded part formed by the folding of the air bag and the corresponding part of the air bag and the air curtain usually falls due to its own weight. For some models with small body layout space, the space between the roof and the body sheet metal is limited. The falling of the folded part will support the roof and cause the roof to bulge downward, affecting the appearance quality of the car interior. The falling of the folded part may also cover the installation holes on the body sheet metal, affecting the installation of other interior parts.

[0003] In the prior art, in order to prevent the folded part from falling, tape is used to fix the folded part to the air curtain mounting bracket. However, when using tape to fix the air curtain, in order to ensure the consistency of the product, the production line has requirements on the winding order and number of windings of the tape, and manual winding is required, which undoubtedly wastes manpower and increases the labor intensity. In addition, in order to enable the air curtain to unfold when inflated, the strength of the tape itself is not high, so it is easy to break during transportation, thereby causing product quality risks.

[0004] At present, no effective solution has been proposed for the problems in the prior art of difficulty in manually wrapping tape to prevent the air curtain from falling and the low strength of the tape that is easy to break. Utility Model Content

[0005] In view of this, the embodiments of the utility model provide an air curtain wrapping cloth and a safety air curtain to at least solve the problems in the prior art of difficulty in manually wrapping tape to prevent the air curtain from falling and the problem that the tape is not strong enough and is easy to break.

[0006] The utility model embodiment provides the following technical solutions:

[0007] The utility model provides an air curtain wrapping cloth, comprising:

[0008] Main fabric piece;

[0009] A first connecting portion, the first connecting portion being arranged at a first end of the main fabric piece;

[0010] The second connecting part is arranged at the second end of the main fabric piece, and the second connecting part is connected to the first connecting part when the main fabric piece is bent to cooperate with the main fabric piece and the first connecting part to form a wrapping structure, and when the second connecting part is subjected to the impact force of the air curtain being deployed, the second connecting part is separated from the first connecting part.

[0011] Furthermore, the connection method between the first connection part and the second connection part includes but is not limited to one or more of adhesive connection, snap connection, tethered connection, and inserted connection.

[0012] Furthermore, the first connecting portion includes:

[0013] A through hole, the through hole being arranged at a first end of the main fabric piece;

[0014] Furthermore, the second connecting portion includes:

[0015] an insertion portion, the insertion portion being arranged at the second end of the main fabric piece and being used for being inserted into the insertion hole when the main fabric piece is bent;

[0016] A limiting portion is arranged on the insertion portion and is used to limit the insertion portion in the insertion hole when the insertion portion passes through the insertion hole.

[0017] Furthermore, the limiting portion includes:

[0018] A snap-in groove is provided on the insertion portion and is used for inserting the insertion portion into the insertion hole to limit the insertion portion to be located in the insertion hole.

[0019] Furthermore, the limiting portion includes:

[0020] An anti-slipping piece is arranged on the insertion portion and is used for being arranged beyond the insertion hole after the insertion portion is inserted into the insertion hole.

[0021] Furthermore, the insertion holes are arranged in multiple rows and spaced apart along the longitudinal direction of the main fabric piece, so that the insertion portion passes through the multiple insertion holes in sequence, thereby enhancing the connection strength between the insertion portion and the insertion holes.

[0022] Furthermore, the insertion holes are arranged in multiple rows and are arranged at intervals along the lateral direction of the main fabric piece, and the insertion parts are arranged in multiple numbers. When the main fabric piece is bent, each insertion part is inserted into a corresponding insertion hole.

[0023] Furthermore, the second connecting portion further includes:

[0024] A weakened portion is disposed on the second connecting portion.

[0025] Furthermore, the air curtain wrapping cloth further comprises:

[0026] The ear-hanging hole is arranged on the main cloth piece or the second connecting part, and is used to cooperate with the clip ear on the gas generator or the bracket.

[0027] The utility model also provides a safety air curtain, comprising:

[0028] Gas generator;

[0029] An air curtain body, the air inlet of the air curtain body is connected to the gas generator, and the air curtain body is rolled up into a long strip structure;

[0030] As in any of the above-mentioned air curtain wrapping cloths, the main cloth piece of the air curtain wrapping cloth is bent to wrap the air curtain body and the gas generator, and when the first connecting part and the second connecting part of the air curtain wrapping cloth are cooperatively connected, the main cloth piece cooperates with the first connecting part and the second connecting part to form a wrapping structure to wrap the air curtain body and the gas generator.

[0031] Furthermore, a clamp is used to fasten the air inlet of the air curtain body and the gas generator, and the ear holes of the air curtain wrapping cloth are matched with the clamping ears of the clamp.

[0032] Compared with the prior art, the at least one technical solution adopted in the embodiment of the utility model can achieve the following beneficial effects:

[0033] The utility model provides an air curtain wrapping cloth, by arranging a first connecting part and a second connecting part at both ends of a main cloth piece, and when the main cloth piece is bent, the first connecting part and the second connecting part can be detachably connected to cooperate with the main cloth piece to form a wrapping structure, thereby eliminating the need to wrap tape around the gas generator and the air curtain, thereby solving the problems in the prior art of difficulty in manually wrapping tape to prevent the air curtain from falling and the low strength of the tape that is easy to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. 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 paying creative work.

[0035] Figure 1 This is a schematic diagram of the unfolding of an air curtain wrapping cloth of the utility model (I);

[0036] Figure 2 It is a schematic diagram of a wrapping structure formed by bending an air curtain wrapping cloth according to the utility model;

[0037] Figure 3 This is a schematic diagram of the unfolding of an air curtain wrapping cloth of the utility model (II);

[0038] Figure 4 This is a schematic diagram of the assembly of a safety air curtain of the utility model;

[0039] Figure 5 A side cross-sectional view of a safety air curtain of the utility model;

[0040] Figure 6 The utility model is a schematic diagram of the assembly of a gas generator and an air curtain body in a safety air curtain.

[0041] The accompanying drawings of the present utility model are as follows:

[0042] 10. Air curtain wrapping cloth; 11. Main cloth piece; 12. First connecting part; 121. Insertion hole; 13. Second connecting part; 131. Insertion part; 132. Position limiting part; 133. Snap-in groove; 134. Anti-slip part; 14. Weakened part; 15. Ear hanging hole;

[0043] 20. Gas generator;

[0044] 30. Air curtain body. DETAILED DESCRIPTION

[0045] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0046] The following describes the implementation methods 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 implementation methods, 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 following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0047] 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 the present 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 the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0048] 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 drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0049] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0050] The existing air curtain is equipped with an air bag made of base fabric. The lower part of the air bag is located at the lower end of the air curtain air inlet. After the air curtain is folded, the folded part at the lower end of the air inlet (the upper end of the B-pillar guard plate) usually falls down. For some models with small body layout space, the space between the ceiling and the body sheet metal is limited. The fallen folded part will press against the ceiling to cause a bulge, which undoubtedly affects the appearance quality of the vehicle. In addition, the fallen folded area may also block the installation holes on the body sheet metal, affecting the installation of other interior parts.

[0051] Especially for fully foldable air curtains, it is necessary to add additional guide cloth at the position corresponding to the position of the air curtain and the B-pillar, which undoubtedly further aggravates the tendency of the folded part at the lower end of the air intake to fall.

[0052] For the falling of the folded part of the lower end of the air curtain air inlet, the common practice is to use tape to wrap the falling part and fix it to the bracket on the roof, but the disadvantages of tape wrapping are also obvious. Specifically, in order to maintain the consistency of the product, the production line has requirements for the winding order and number of windings of the tape. Manual winding takes a long time and is not economical. In addition, because the air curtain needs to be unfolded, the strength of the tape is also weak. The tape is easily broken during transportation due to vehicle bumps, which undoubtedly creates product quality risks.

[0053] Based on this, this specification embodiment proposes a processing solution: Figures 1-2 As shown, an air curtain wrapping cloth 10 of the utility model is provided with a first connecting portion 12 and a second connecting portion 13 at both ends of a main cloth piece 11 respectively, so that after the main cloth piece 11 is bent, the first connecting portion 12 and the second connecting portion 13 cooperate to connect to form a wrapping structure, and since the first connecting portion 12 and the second connecting portion 13 are detachably connected, the deployment of the air curtain is not affected, thereby solving the problem of fixing the air curtain with adhesive tape in the prior art.

[0054] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0055] Example 1

[0056] like Figures 1-2 As shown, the embodiment of the utility model provides an air curtain wrapping cloth 10, comprising a main cloth piece 11, a first connecting portion 12 and a second connecting portion 13. The main cloth piece 11 has a certain width and length, and is used to form the main body of the wrapping structure; the first connecting portion 12 is arranged at the first end of the main cloth piece 11; the second connecting portion 13 is arranged at the second end of the main cloth piece 11, and the second connecting portion 13 is used to be detachably connected to the first connecting portion 12 when the main cloth piece 11 is bent, so as to cooperate with the main cloth piece 11 and the first connecting portion 12 to form a wrapping structure.

[0057] The main fabric sheet 11 may be fabric, plastic sheet or other sheet-like structure that is easy to bend.

[0058] Preferably, the main fabric sheet 11 is made of uncoated three-layer melt-cut base fabric.

[0059] The main fabric piece 11 may be a rectangular or square structure or a U-shaped structure with two ear pieces, and its length is related to the size of the folded structure formed after the air curtain is rolled up.

[0060] Among them, other installation holes or assembly holes may also be opened on the main fabric piece 11, so that the main fabric piece 11 can be matched and connected with the vehicle body or the folding structure of the air curtain or the gas generator 20.

[0061] The first connection part 12 and the second connection part 13 are detachably connected, and after the wrapping structure formed by the main fabric piece 11, the first connection part 12 and the second connection part 13 wraps the folded air curtain, the air curtain can unfold and break open the first connection part 12 and the second connection part 13.

[0062] The connection method between the first connection part 12 and the second connection part 13 includes, but is not limited to, one or more of an adhesive connection, a snap connection, a tethered connection, and an interlaced connection.

[0063] For example, when the first connection part 12 and the second connection part 13 are connected by adhesive, the first connection part 12 is set to a hook surface and the second connection part 13 is set to a velvet surface; when the first connection part 12 and the second connection part 13 are connected by snap buckles, a detachable connection can be made by means of metal buckles, plastic buckles, webbing buckles, etc.; when the first connection part 12 and the second connection part 13 are connected by tethering, the first connection part 12 and the second connection part 13 can be tethering belts, and the tethering connection is made by a simple tethering buckle.

[0064] Further, when the first connection part 12 and the second connection part 13 are connected in an interpenetrating manner, the first connection part 12 includes an interpenetrating hole 121 arranged at the first end of the main fabric piece 11; the second connection part 13 includes an interpenetrating part 131 and a limiting part 132, the interpenetrating part 131 is arranged at the second end of the main fabric piece 11, and is used to insert into the interpenetrating hole 121 when the main fabric piece 11 is bent; the limiting part 132 is used to limit the interpenetrating part 131 in the interpenetrating hole 121 when the interpenetrating part 131 passes through the interpenetrating hole 121.

[0065] The width of the end of the insertion portion 131 is smaller than the width of the insertion hole 121 , so that the end of the insertion portion 131 can be inserted into the insertion hole 121 .

[0066] For example, the end of the insertion portion 131 may be configured as a trapezoidal structure, a triangular structure, or the like.

[0067] In some of the embodiments, the width of the insertion portion 131 is greater than or equal to the diameter of the insertion hole 121, so that when the insertion portion 131 is inserted into the insertion hole 121, the insertion portion 131 is limited in the insertion hole 121 by friction to prevent the insertion portion 131 from easily detaching from the insertion hole 121.

[0068] Among them, when the insertion portion 131 passes through the insertion hole 121, if the limiting portion 132 is not used to limit the insertion portion 131 in the insertion hole 121, the air curtain wrapping cloth may be separated from the insertion hole 121 under the weight of the air curtain and / or the gas generator. Therefore, it is necessary to use the limiting portion 132 to limit the insertion portion 131.

[0069] In some of the embodiments, Figure 1 As shown, the limiting portion 132 includes a snap-in groove 133 , which is provided on the insertion portion 131 and is used to limit the insertion portion 131 in the insertion hole 121 when the insertion portion 131 is inserted into the insertion hole 121 .

[0070] Specifically, when the snap-fit ​​groove 133 is provided on the second connection portion 13, the width of the second connection portion 13 is greater than the width of the insertion hole 121, and the width of the snap-fit ​​portion of the second connection portion 13 is equal to or slightly smaller than the width of the insertion hole 121, so that when the snap-fit ​​portion is located in the insertion hole 121, the second connection portion 13 can be limited in the insertion hole 121, and the second connection portion 13 can also be separated from the insertion hole 121 when subjected to force, wherein the snap-fit ​​portion is a portion of the second connection portion 13 corresponding to the snap-fit ​​groove 133 along the width direction of the second connection portion 13.

[0071] In some of the embodiments, Figure 3As shown, the limiting portion 132 includes an anti-slip component 134 , which is disposed on the insertion portion 131 and is used to pass over the insertion hole 121 after the insertion portion 131 is inserted into the insertion hole 121 to prevent the insertion portion 131 from being separated from the insertion hole 121 .

[0072] The anti-dropping member 134 is disposed at any position of the end of the insertion portion 131 or the middle of the insertion portion 131 .

[0073] The anti-dropping member 134 may be located on both sides of the insertion portion 131 , or may be located on one side of the insertion portion 131 .

[0074] There is at least one anti-dropping member 134 .

[0075] When the number of the anti-slipping members 134 is set to be multiple, a multi-level anti-slipping structure can be formed to increase the anti-slipping ability and avoid

[0076] For example, the anti-dropping member 134 can cooperate with the insertion portion 131 to form a T-shaped structure, an F-shaped structure, an L-shaped structure, etc.

[0077] The anti-dropping member 134 is made of a cloth sheet, and can be cut and formed with the insertion portion 131 from the same cloth sheet.

[0078] In some of the embodiments, the insertion holes 121 are arranged in multiple rows and are spaced apart along the longitudinal direction of the main fabric piece 11, so that the insertion portion 131 passes through the multiple insertion holes 121 in sequence, thereby enhancing the connection strength between the insertion portion 131 and the insertion holes 121, wherein the longitudinal direction of the main fabric piece 11 refers to the direction from the first end to the second end of the main fabric piece 11.

[0079] When the through holes 121 are arranged in multiple rows, the multiple rows of through holes 121 are all located on the same straight line.

[0080] Among them, by setting a plurality of insertion holes 121 along the longitudinal direction of the main fabric piece 11, and passing the insertion part 131 through the plurality of insertion holes 121 in sequence after the main fabric piece 11 is bent, the friction between the insertion part 131 and the insertion hole 121 is enhanced, that is, the firmness of the connection between the insertion part 131 and the insertion hole 121 is increased.

[0081] For example, when the insertion holes 121 are arranged in two rows, the first end of the main fabric piece 11 is firstly bent so that the two rows of insertion holes 121 are arranged correspondingly front to back, and then the insertion portion 131 passes through the insertion holes 121 in sequence.

[0082] In this embodiment, the number of the engaging slots 133 is equal to or less than the number of rows of the insertion holes 121 .

[0083] Preferably, the number of the engaging slots 133 is equal to the number of rows of the insertion holes 121 .

[0084] In some of the embodiments, the insertion holes 121 are arranged in multiple rows, and the insertion parts 131 are arranged in multiple rows. When the main cloth piece 11 is bent, each insertion part 131 is inserted into a corresponding insertion hole 121 to increase the connection strength between the insertion part 131 and the insertion hole 121 to prevent the insertion part 131 from easily detaching from the insertion hole 121.

[0085] The plurality of rows of insertion holes 121 are arranged at intervals along the transverse direction (width direction) of the main fabric piece 11 , wherein the transverse direction of the main fabric piece 11 is perpendicular to the longitudinal direction of the main fabric piece 11 .

[0086] For example, the insertion holes 121 may be arranged in two rows, and in this case, two insertion portions 131 are also arranged.

[0087] In some preferred embodiments, the insertion holes 121 are arranged in two rows and two columns so that the reaction force of the folding and expansion of the air curtain is smaller than the force of the insertion portion 131 to escape from the insertion holes 121, so that when the air curtain is not ignited, the air curtain wrapping cloth 10 can wrap and prevent the air curtain from falling, and when the air curtain is ignited, the insertion portion 131 can also slip out of the insertion hole 121, so that the bag can be smoothly unfolded.

[0088] In some of the embodiments, Figure 1 , 3 As shown, the second connection portion 13 further includes a weakened portion 14, which is disposed on the second connection portion 13 and is used to be torn when the first connection portion 12 and the second connection portion 13 cannot be separated, so as to enable the air curtain to be deployed.

[0089] Specifically, when the first connection portion 12 and the second connection portion 13 cannot be separated normally due to structural limitations or limitations of other vehicle body structures, the weakened portion 14 can be torn under the impact force of the air curtain deployment, so that the air curtain can be deployed normally.

[0090] Among them, the strength of the weakened portion 14 is smaller than the strength of other parts of the second connecting portion 13. For example, the width of the weakened portion 14 can be much smaller than the normal width of the second connecting portion 13, the thickness of the weakened portion 14 can be smaller than the overall thickness of the second connecting portion 13, or a plurality of perforations are provided on the weakened portion 14.

[0091] When the second connection portion 13 is the insertion portion 131 , the weakened portion 14 is disposed at any position in the middle of the insertion portion 131 .

[0092] In some of the embodiments, the air curtain wrapping cloth 10 further includes an ear hole 15 , which is disposed on the main cloth piece 11 or the second connecting portion 13 and is used to cooperate with a clip ear on the gas generator 20 or the bracket.

[0093] The number of the ear holes 15 is matched according to the number of the clip ears on the gas generator 20 or the bracket.

[0094] The ear-hanging hole 15 may be a triangular hole to facilitate cooperation with the clip ear.

[0095] For example, two ear-hanging holes 15 may be provided, and the two ear-hanging holes 15 are provided on the main fabric piece 11 or the second connecting portion 13 .

[0096] The working principle of the utility model is as follows:

[0097] After the air curtain is rolled up, the main fabric sheet 11 is bent to wrap the air curtain, and the first connecting portion 12 and the second connecting portion 13 are detachably connected;

[0098] When the air curtain is not detonated, the first connecting portion 12 and the second connecting portion 13 are connected to wrap and pull the air curtain to prevent the air curtain from falling;

[0099] When the air curtain is ignited, the first connection portion 12 and the second connection portion 13 can be separated under the impact force of the air curtain explosion, so that the air curtain can be smoothly deployed.

[0100] Example 2

[0101] like Figures 4 to 6 As shown, the embodiment of the utility model provides a safety air curtain, comprising a gas generator 20, an air curtain body 30 and an air curtain wrapping cloth 10 as described in Example 1. The air inlet of the air curtain body 30 is connected to the gas generator 20, and the air curtain body 30 is rolled into a long strip structure; the main cloth piece 11 of the air curtain wrapping cloth 10 is bent to wrap the air curtain body 30 and the gas generator 20, and when the first connecting portion 12 and the second connecting portion 13 of the air curtain wrapping cloth 10 are connected in cooperation, the main cloth piece 11 cooperates with the first connecting portion 12 and the second connecting portion 13 to form a wrapping structure to wrap the air curtain body 30 and the gas generator 20.

[0102] Furthermore, a clamp is used to fasten the air inlet of the air curtain body 30 and the gas generator 20, and the ear holes 15 of the air curtain wrapping cloth 10 are matched with the clamping ears of the clamp.

[0103] In this specification, the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the product embodiment described later, since it corresponds to the method, the description is relatively simple, and the relevant parts can be referred to the partial description of the system embodiment.

[0104] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An air curtain wrapping cloth, characterized in that: include: Main fabric piece; A first connecting portion, the first connecting portion being arranged at a first end of the main fabric piece; The second connecting part is arranged at the second end of the main fabric piece, and the second connecting part is connected to the first connecting part when the main fabric piece is bent to cooperate with the main fabric piece and the first connecting part to form a wrapping structure, and when the second connecting part is subjected to the impact force of the air curtain being deployed, the second connecting part is separated from the first connecting part.

2. The air curtain wrapping cloth according to claim 1, characterized in that: The connection method between the first connection part and the second connection part includes, but is not limited to, one or more of an adhesive connection, a snap connection, a tethered connection, and an interlaced connection.

3. The air curtain wrapping cloth according to claim 1, characterized in that: The first connecting portion comprises: An insertion hole, the insertion hole being arranged at a first end of the main fabric piece; The second connecting portion comprises: an insertion portion, the insertion portion being arranged at the second end of the main fabric piece and being used for being inserted into the insertion hole when the main fabric piece is bent; A limiting portion is arranged on the insertion portion and is used to limit the insertion portion in the insertion hole when the insertion portion passes through the insertion hole.

4. The air curtain wrapping cloth according to claim 3, characterized in that: The limiting part comprises: A snap-in groove is provided on the insertion portion and is used for inserting the insertion portion into the insertion hole to limit the insertion portion to be located in the insertion hole.

5. The air curtain wrapping cloth according to claim 3, characterized in that: The limiting part comprises: An anti-slipping piece is arranged on the insertion portion and is used for being arranged beyond the insertion hole after the insertion portion is inserted into the insertion hole.

6. The air curtain wrapping cloth according to any one of claims 3 to 5, characterized in that: The insertion holes are arranged in multiple rows and spaced apart in the longitudinal direction of the main fabric piece, so that the insertion portion passes through the multiple insertion holes in sequence, thereby enhancing the connection strength between the insertion portion and the insertion holes.

7. The air curtain wrapping cloth according to claim 6, characterized in that: The insertion holes are arranged in multiple rows and are arranged at intervals along the lateral direction of the main fabric sheet, and the insertion portions are arranged in multiple rows. When the main fabric sheet is bent, each insertion portion is inserted into a corresponding insertion hole.

8. The air curtain wrapping cloth according to any one of claims 1 to 5 and 7, characterized in that: The second connecting portion further includes: A weakened portion is disposed on the second connecting portion.

9. The air curtain wrapping cloth according to any one of claims 1 to 5 and 7, characterized in that: Also includes: The ear-hanging hole is arranged on the main cloth piece or the second connecting part, and is used to cooperate with the clip ear on the gas generator or the bracket.

10. A safety air curtain, characterized in that: include: Gas generator; An air curtain body, the air inlet of the air curtain body is connected to the gas generator, and the air curtain body is rolled up into a long strip structure; The air curtain wrapping cloth according to any one of claims 1 to 9, wherein the main cloth piece of the air curtain wrapping cloth is bent to wrap the air curtain body and the gas generator, and when the first connecting portion and the second connecting portion of the air curtain wrapping cloth are cooperatively connected, the main cloth piece cooperates with the first connecting portion and the second connecting portion to form a wrapping structure to wrap the air curtain body and the gas generator; in, When the air inlet of the air curtain body and the gas generator are fastened by using a clamp, the ear holes of the air curtain wrapping cloth are matched with the clamp ears of the clamp.

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