Folding zipper for suitcase, folding expansion zipper for suitcase, and suitcase having said zipper

Abstract

A folding zipper for a suitcase, a folding expansion zipper for a suitcase, and a suitcase having said zipper. The folding zipper for a suitcase at least comprises a left side case shell, a right side case shell, left side zipper fabric, right side zipper fabric, left side inner lining fabric, right side inner lining fabric, left side zipper fabric outer zipper teeth, left side zipper fabric inner zipper teeth, a left side zipper fabric upper folding portion, a left side zipper fabric middle folding portion, right side zipper fabric outer zipper teeth, right side zipper fabric inner zipper teeth, a right side zipper fabric upper folding portion, a right side zipper fabric middle folding portion, left side inner lining fabric zipper teeth, and right side inner lining fabric zipper teeth. The suitcase can meet user requirements with respect to volume and convenience in different scenarios. A zipper webbing structure is directly sewn and fixed to a suitcase body, and the space on the left side / right side case shell can be expanded by means of the addition of left side / right side zipper fabric inner expansion portions, so that more luggage can be accommodated.

Description

A luggage folding zipper, a folding capacity-expanding zipper and a luggage with the same TECHNICAL FIELD

[0001] The present application relates to the field of luggage zippers, in particular to a luggage folding zipper, a folding capacity-expanding zipper and a luggage with the same. BACKGROUND

[0002] The user's space requirement for the luggage will vary according to the period of travel and the climate of the destination, and different clothes and corresponding volume of luggage need to be carried, for example, when the traveler departs from a relatively warm weather and arrives at a relatively cold destination, the user will store the cold-weather clothes in the luggage, at this time the user has a larger space requirement for the luggage, and after the cold-weather clothes are taken out of the luggage upon arrival at the destination, the interior of the luggage will be in an idle state, but the user hopes that the external volume of the luggage is not too large to affect the convenience of travel or action; when returning to a relatively warm climate, the user needs to store cold-weather clothes in the luggage, and the user may also purchase souvenirs and the like at the destination, at this time the user has a higher requirement for the volume of the luggage; at the same time, the user hopes to use only one luggage to meet the volume requirement under different conditions.

[0003] Therefore, the luggage with the scalable capacity-expanding function can not only meet the convenience of the user, but also meet the user's requirement for different capacity. SUMMARY

[0004] In order to overcome the deficiencies in the prior art, the present application provides a luggage folding zipper, a folding capacity-expanding zipper and a luggage with the same, which solves the problems of small volume and poor capacity-expanding function of the luggage in the prior art.

[0005] In order to achieve the above-mentioned application purposes and solve the technical problems, the technical solutions adopted are as follows:

[0006] The present application discloses a luggage folding zipper, which comprises a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a left side lining cloth, a right side lining cloth, a left side zipper cloth external zipper tooth, a left side zipper cloth internal zipper tooth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, a right side zipper cloth external zipper tooth, a right side zipper cloth internal zipper tooth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, a left side lining cloth zipper tooth and a right side lining cloth zipper tooth, wherein:

[0007] The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the left side zipper cloth and the right side zipper cloth;

[0008] The side of the left zipper cloth is arranged in S shape at the end of the left box shell, one end of the left zipper cloth is provided with the left zipper cloth external zipper teeth, and the other end is provided with the left zipper cloth internal zipper teeth;

[0009] The left side lining cloth is provided with the left side lining cloth zipper teeth on one side close to the left zipper cloth, the left side lining cloth zipper teeth are arranged opposite to the left zipper cloth internal zipper teeth and are located inside the left box shell, and are connected through the zipper head, so as to fix the left side lining cloth and the left zipper cloth.

[0010] The upper folding part of the left zipper cloth is located above one end of the left box shell close to the right box shell.

[0011] The middle folding part of the left zipper cloth is wrapped around the end of one end of the left box shell close to the right box shell.

[0012] The side of the right zipper cloth is arranged in reverse S shape at the end of the right box shell, one end of the right zipper cloth is provided with the right zipper cloth external zipper teeth, and the other end is provided with the right zipper cloth internal zipper teeth.

[0013] The right side lining cloth is provided with the right side lining cloth zipper teeth on one side close to the right zipper cloth, the right side lining cloth zipper teeth are arranged opposite to the right zipper cloth internal zipper teeth and are located inside the right box shell, and are connected through the zipper head, so as to fix the right side lining cloth and the right zipper cloth.

[0014] The upper folding part of the right zipper cloth is located above one end of the right box shell close to the left box shell.

[0015] The middle folding part of the right zipper cloth is wrapped around the end of one end of the right box shell close to the left box shell.

[0016] The left zipper cloth external zipper teeth and the right zipper cloth external zipper teeth are arranged opposite to each other, so as to fix the left zipper cloth and the right zipper cloth, and then realize the opening and closing operation of the left box shell and the right box shell through the zipper head.

[0017] Further, the left side sewing fixing part and the right side sewing fixing part are further included, wherein:

[0018] The left side sewing fixing part fixes the left box shell and the left zipper cloth vertically.

[0019] The right side sewing fixing part fixes the right box shell and the right zipper cloth vertically.

[0020] The luggage folding zipper also discloses a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a left side lining cloth, a right side lining cloth, a left side zipper cloth outer zipper tooth, a left side zipper cloth inner zipper tooth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, a left side zipper cloth lower folding part, a right side zipper cloth outer zipper tooth, a right side zipper cloth inner zipper tooth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, and a right side zipper cloth lower folding part.

[0021] The opening ends of the left side box shell and the right side box shell are oppositely arranged, and the left side zipper cloth and the right side zipper cloth form an openable opening.

[0022] The side of the left side zipper cloth is arranged in a reverse arch shape at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth.

[0023] The left side zipper cloth upper folding part is located above the end of the left side box shell close to the right side box shell.

[0024] The left side zipper cloth middle folding part is wrapped around the end of the left side box shell close to the right side box shell and the end of the left side lining cloth inside the left side box shell.

[0025] The left side zipper cloth lower folding part is located inside the left side lining cloth.

[0026] The side of the right side zipper cloth is arranged in an arch shape at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper tooth, and the other end is provided with the right side zipper cloth inner zipper tooth.

[0027] The right side zipper cloth upper folding part is located above the end of the right side box shell close to the left side box shell.

[0028] The right side zipper cloth middle folding part is wrapped around the end of the right side box shell close to the left side box shell and the end of the right side lining cloth inside the right side box shell.

[0029] The right side zipper cloth lower folding part is located inside the right side lining cloth.

[0030] The left side zipper cloth outer zipper tooth and the right side zipper cloth outer zipper tooth are arranged correspondingly on the left and right sides, and the left side zipper cloth inner zipper tooth and the right side zipper cloth inner zipper tooth are arranged correspondingly on the left and right sides.

[0031] The left and right zipper cloth exterior zipper teeth and the left and right zipper cloth interior zipper teeth are simultaneously realized by a double-layer zipper head to realize the double-layer opening and closing operation of the left and right zipper cloth, form a double-layer anti-explosion zipper structure, and further realize the opening and closing of the left and right box shells.

[0032] Further, the left and right sewing fixing members are further included, wherein:

[0033] The left sewing fixing member fixes the left box shell, the left lining cloth and the left zipper cloth vertically by sewing.

[0034] The right sewing fixing member fixes the right box shell, the right lining cloth and the right zipper cloth vertically by sewing.

[0035] The application further discloses a luggage folding and expanding zipper, which comprises a left box shell, a right box shell, a left zipper cloth, a right zipper cloth, a middle zipper cloth, a left lining cloth, a right lining cloth, left zipper cloth exterior zipper teeth, left zipper cloth interior zipper teeth, a left zipper cloth upper folding part, a left zipper cloth middle folding part, a left zipper cloth lower folding part, right zipper cloth exterior zipper teeth, right zipper cloth interior zipper teeth, a right zipper cloth upper folding part, a right zipper cloth middle folding part, a right zipper cloth lower folding part, a right zipper cloth interior expanding part, middle zipper cloth first side zipper teeth, middle zipper cloth second side zipper teeth and a middle sewing fixing member, wherein:

[0036] The opening ends of the left and right box shells are oppositely arranged, and the left and right zipper cloths form an openable opening.

[0037] The side of the left zipper cloth is reversely and circumferentially arranged at the end of the left box shell in a reverse arch shape, one end of the left zipper cloth is provided with the left zipper cloth exterior zipper teeth, and the other end is provided with the left zipper cloth interior zipper teeth, and the left zipper cloth exterior zipper teeth and the left zipper cloth interior zipper teeth are oppositely arranged.

[0038] The left zipper cloth upper folding part is located above the end of the left box shell close to the right box shell.

[0039] The left zipper cloth middle folding part is wrapped around the end of the left box shell close to the right box shell and the end of the left lining cloth inside the left box shell.

[0040] The left zipper cloth lower folding part is located inside the left lining cloth.

[0041] The side of the right side zipper cloth is arranged in an arc shape at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth external zipper teeth, the other end is provided with the right side zipper cloth internal zipper teeth, and the right side zipper cloth internal zipper teeth and the left side zipper cloth internal zipper teeth are horizontally arranged in correspondence;

[0042] The upper folding part of the right side zipper cloth is located above the end of the right side box shell close to the left side box shell;

[0043] The middle folding part of the right side zipper cloth is wrapped around the end of the right side box shell close to the left side box shell and the end of the right side lining cloth inside the right side box shell;

[0044] The lower folding part of the right side zipper cloth is located inside the right side lining cloth;

[0045] The internal expansion part of the right side zipper cloth is arranged in a V-shaped structure below the middle zipper cloth and the right side zipper cloth, one end is connected to the lower folding part of the right side zipper cloth, and the other end is connected to the internal zipper teeth of the right side zipper cloth;

[0046] The middle zipper cloth is horizontally arranged between the upper surfaces of the left side zipper cloth and the right side zipper cloth, one end is provided with the first side zipper teeth of the middle zipper cloth, and the other end is provided with the second side zipper teeth of the middle zipper cloth;

[0047] The first side zipper teeth of the middle zipper cloth are horizontally arranged in correspondence with the external zipper teeth of the left side zipper cloth, and the first side zipper teeth of the middle zipper cloth are vertically arranged in correspondence with the internal zipper teeth of the right side zipper cloth, and the second side zipper teeth of the middle zipper cloth are horizontally arranged in correspondence with the external zipper teeth of the right side zipper cloth;

[0048] The middle sewing fixing part vertically sews and fixes the middle part of the middle zipper cloth and the left end of the internal expansion part of the right side zipper cloth;

[0049] The external zipper teeth of the left side zipper cloth and the first side zipper teeth of the middle zipper cloth, and the internal zipper teeth of the left side zipper cloth and the internal zipper teeth of the right side zipper cloth simultaneously realize the double-layer opening and closing operation of the internal and external parts of the left side zipper cloth, the middle zipper cloth and the internal expansion part of the right side zipper cloth through a double-layer zipper head, form a double-layer anti-explosion zipper structure, and further realize the opening and closing of the left side box shell and the right side box shell;

[0050] The second side zipper teeth of the middle zipper cloth and the external zipper teeth of the right side zipper cloth realize the opening and closing operation of the right side zipper cloth and the middle zipper cloth through a zipper head, and in the open state of the zipper head, the expansion of the internal expansion part of the right side zipper cloth realizes the expansion of the right side box shell.

[0051] Further, it also includes a left side sewing fixing part and a right side sewing fixing part, wherein:

[0052] The left side sewing fixing part fixes the left side box shell, the left side lining cloth and the left side zipper cloth vertically by sewing;

[0053] The right side sewing fixing part fixes the right side box shell, the right side lining cloth and the right side zipper cloth vertically by sewing.

[0054] The application also discloses a luggage case folding and expanding zipper, which comprises a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a middle zipper cloth, a left side lining cloth, a right side lining cloth, left side zipper cloth external zipper teeth, left side zipper cloth internal zipper teeth, left side lining cloth zipper teeth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, right side zipper cloth external zipper teeth, right side zipper cloth internal zipper teeth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, a right side zipper cloth lower folding part, a right side zipper cloth internal expanding part, a right side zipper cloth expanding folding part, right side lining cloth zipper teeth, middle zipper cloth first side zipper teeth, middle zipper cloth second side zipper teeth and a middle sewing fixing part, wherein:

[0055] The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the left side zipper cloth and the right side zipper cloth;

[0056] The side of the left side zipper cloth is arranged in an S-shaped detour at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth external zipper teeth, and the other end is provided with the left side zipper cloth internal zipper teeth;

[0057] The left side lining cloth is provided with the left side lining cloth zipper teeth close to one side of the left side zipper cloth, the left side lining cloth zipper teeth and the left side zipper cloth internal zipper teeth are oppositely arranged and simultaneously located inside the left side box shell, and are connected by a zipper head, so as to fix the left side lining cloth and the left side zipper cloth to each other;

[0058] The left side zipper cloth upper folding part is located above one end of the left side box shell close to the right side box shell;

[0059] The left side zipper cloth middle folding part is wrapped around the end of one end of the left side box shell close to the right side box shell;

[0060] The side of the right side zipper cloth is arranged in an arch-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth external zipper teeth, and the other end is provided with the right side zipper cloth internal zipper teeth;

[0061] The right side zipper cloth upper folding part is located above one end of the right side box shell close to the left side box shell;

[0062] The right side zipper cloth middle folding part is wrapped around the end of the right side box shell near the left side box shell;

[0063] The right side zipper cloth lower folding part is located inside the right side lining cloth;

[0064] The right side zipper cloth internal expansion part is arranged in a V-shaped structure below the middle zipper cloth and the right side zipper cloth, one end of which is connected to the right side zipper cloth lower folding part, and the other end is connected to the left side zipper cloth internal zipper teeth;

[0065] The right side zipper cloth expansion folding part is located below the middle zipper cloth, one end of which is connected to the right side zipper cloth internal expansion part, and the other end is connected to the left side zipper cloth internal zipper teeth after being folded downward from the lower part;

[0066] The middle zipper cloth is horizontally arranged between the upper surfaces of the left side zipper cloth and the right side zipper cloth, one end of which is provided with the middle zipper cloth first side zipper teeth, and the other end is provided with the middle zipper cloth second side zipper teeth;

[0067] The middle zipper cloth first side zipper teeth are horizontally arranged in correspondence with the left side zipper cloth external zipper teeth, and the middle zipper cloth second side zipper teeth are horizontally arranged in correspondence with the right side zipper cloth external zipper teeth;

[0068] The middle sewing fixing part vertically sews and fixes the middle part of the middle zipper cloth and the right side zipper cloth expansion folding part;

[0069] The right side lining cloth is provided with the right side lining cloth zipper teeth on the side close to the right side zipper cloth internal expansion part, the right side lining cloth zipper teeth are arranged opposite to the right side zipper cloth internal zipper teeth and are located inside the right side zipper cloth internal expansion part, and are connected by a zipper head, for fixing the right side lining cloth and the right side zipper cloth to each other;

[0070] The left side zipper cloth external zipper teeth and the middle zipper cloth first side zipper teeth are horizontally arranged in correspondence, and a zipper head is used to realize the opening and closing operation of the left side zipper cloth and the middle zipper cloth, thereby realizing the opening and closing of the left side box shell and the right side box shell;

[0071] The middle zipper cloth second side zipper teeth and the right side zipper cloth external zipper teeth are horizontally arranged in correspondence, and a zipper head is used to realize the opening and closing operation of the right side zipper cloth and the middle zipper cloth, and in the open state of the zipper head, the expansion of the right side box shell is realized by the stretching of the right side zipper cloth internal expansion part.

[0072] Further, it further comprises a left side sewing fixing part and a right side sewing fixing part, wherein:

[0073] The left side sewing fixing member fixes the left side box shell and the left side zipper cloth vertically by sewing;

[0074] The right side sewing fixing member fixes the right side box shell and the right side zipper cloth vertically by sewing.

[0075] The application further discloses a luggage case folding and expanding zipper, which comprises a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a middle zipper cloth, a left side lining cloth, a right side lining cloth, left side zipper cloth external teeth, left side zipper cloth internal teeth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, a left side zipper cloth lower folding part, right side zipper cloth external teeth, right side zipper cloth internal teeth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, a right side zipper cloth lower folding part, a right side zipper cloth internal expanding part, a middle zipper cloth first side tooth, a middle zipper cloth second side tooth and a middle sewing fixing member, wherein:

[0076] The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the left side zipper cloth and the right side zipper cloth;

[0077] The side of the left side zipper cloth is reversely arc-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth external teeth, and the other end is provided with the left side zipper cloth internal teeth, and the left side zipper cloth external teeth and the left side zipper cloth internal teeth are oppositely arranged.

[0078] The left side zipper cloth upper folding part is located above the end of the left side box shell close to the right side box shell.

[0079] The left side zipper cloth middle folding part wraps the end of the left side box shell close to the right side box shell and the left side lining cloth inside the left side box shell at the same time.

[0080] The left side zipper cloth lower folding part is located inside the left side lining cloth.

[0081] The side of the right side zipper cloth is arc-shaped and circumvents the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth external teeth, and the other end is provided with the right side zipper cloth internal teeth.

[0082] The right side zipper cloth upper folding part is located above the end of the right side box shell close to the left side box shell.

[0083] The right side zipper cloth middle folding part wraps the end of the right side box shell close to the left side box shell and the right side lining cloth inside the right side box shell at the same time.

[0084] The right side zipper cloth lower folding part is located on the inner side of the right side lining cloth;

[0085] The right side zipper cloth internal expansion part is arranged in a V-shaped structure below the right side zipper cloth, one end is connected to the right side zipper cloth lower folding part, and the other end is connected to the right side zipper cloth internal zipper tooth after being folded upward from the lower part;

[0086] The first side and the second side of the middle zipper cloth are arranged at an acute angle, one end is provided with the first side zipper tooth of the middle zipper cloth, and the other end is provided with the second side zipper tooth of the middle zipper cloth;

[0087] The first side zipper tooth of the middle zipper cloth and the second side zipper tooth of the middle zipper cloth are arranged in a one-up-and-one-down correspondence;

[0088] The first side zipper tooth of the middle zipper cloth and the external zipper tooth of the left side zipper cloth are arranged in a horizontal correspondence;

[0089] The second side zipper tooth of the middle zipper cloth and the internal zipper tooth of the left side zipper cloth are arranged in a horizontal correspondence;

[0090] The middle sewing fixing part horizontally sews and fixes the end of the first side zipper tooth of the middle zipper cloth close to the middle zipper cloth and the end of the internal expansion part of the right side zipper cloth close to the internal zipper tooth of the right side zipper cloth;

[0091] The external zipper tooth of the left side zipper cloth and the first side zipper tooth of the middle zipper cloth, and the internal zipper tooth of the left side zipper cloth and the second side zipper tooth of the middle zipper cloth simultaneously realize the double-layer opening and closing operation of the internal and external parts of the left side zipper cloth and the middle zipper cloth through a double-layer zipper head, form a double-layer anti-explosion zipper structure, and further realize the opening and closing of the left side box shell and the right side box shell.

[0092] The internal zipper tooth of the right side zipper cloth and the external zipper tooth of the right side zipper cloth are arranged in a horizontal correspondence, and realize the internal and external opening and closing operation of the right side zipper cloth through a zipper head, and in the opened state of the zipper head, the expansion of the right side box shell is realized through the expansion of the internal expansion part of the right side zipper cloth.

[0093] Further, it further comprises a left side sewing fixing part and a right side sewing fixing part, wherein:

[0094] The left side sewing fixing part vertically sews and fixes the left side box shell, the left side lining cloth, and the left side zipper cloth;

[0095] The right side sewing fixing part vertically sews and fixes the right side box shell, the right side lining cloth, and the right side zipper cloth.

[0096] The luggage folding and expanding zipper also discloses a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a middle zipper cloth, a left side lining cloth, a right side lining cloth, a left side zipper cloth outer zipper tooth, a left side zipper cloth inner zipper tooth, a left side lining cloth zipper tooth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, a right side zipper cloth outer zipper tooth, a right side zipper cloth inner zipper tooth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, a right side zipper cloth lower folding part, a right side zipper cloth inner expanding part, a right side lining cloth zipper tooth, a middle zipper cloth first side zipper tooth, a middle zipper cloth second side zipper tooth, and a middle sewing fixing part.

[0097] The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the left side zipper cloth and the right side zipper cloth.

[0098] The side of the left side zipper cloth is arranged in an S-shaped detour at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth.

[0099] The left side lining cloth is provided with the left side lining cloth zipper tooth close to one side of the left side zipper cloth, the left side lining cloth zipper tooth and the left side zipper cloth inner zipper tooth are oppositely arranged and simultaneously located inside the left side box shell, and are connected by a zipper head, so as to fix the left side lining cloth and the left side zipper cloth to each other.

[0100] The left side zipper cloth upper folding part is located above one end of the left side box shell close to the right side box shell.

[0101] The left side zipper cloth middle folding part is wrapped around the end of one end of the left side box shell close to the right side box shell.

[0102] The side of the right side zipper cloth is arranged in an arch-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper tooth, and the other end is provided with the right side zipper cloth inner zipper tooth.

[0103] The right side zipper cloth upper folding part is located above one end of the right side box shell close to the left side box shell.

[0104] The right side zipper cloth middle folding part is wrapped around the end of one end of the right side box shell close to the left side box shell.

[0105] The right side zipper cloth lower folding part is located inside the right side box shell.

[0106] The right side zipper cloth internal expansion part is arranged in a V-shaped structure below the right side zipper cloth, one end is connected to the right side zipper cloth lower folding part, and the other end is folded upwards from the lower part and connected to the right side zipper cloth internal zipper tooth;

[0107] The first side and the second side of the middle zipper cloth are arranged at an obtuse angle, one end is provided with the first side zipper tooth of the middle zipper cloth, and the other end is provided with the second side zipper tooth of the middle zipper cloth;

[0108] The right side inner lining cloth is provided with the right side inner lining cloth zipper tooth on one side close to the middle zipper cloth, the right side inner lining cloth zipper tooth is arranged opposite to the second side zipper tooth of the middle zipper cloth and is located inside the right side zipper cloth internal expansion part, and is connected by a zipper head to fix the right side inner lining cloth and the middle zipper cloth;

[0109] The middle sewing fixing part horizontally sews and fixes the middle zipper cloth close to one end of the first side zipper tooth of the middle zipper cloth and the right side zipper cloth internal expansion part close to one end of the internal zipper tooth of the right side zipper cloth;

[0110] The left side zipper cloth external zipper tooth and the first side zipper tooth of the middle zipper cloth are horizontally arranged in correspondence, and a zipper head is used to realize the opening and closing operation of the left side zipper cloth and the middle zipper cloth, thereby realizing the opening and closing of the left side box shell and the right side box shell;

[0111] The right side zipper cloth internal zipper tooth and the right side zipper cloth external zipper tooth are horizontally arranged in correspondence, and a zipper head is used to realize the internal and external opening and closing operation of the right side zipper cloth itself, and in the opened state of the zipper head, the right side box shell is expanded by the stretching of the right side zipper cloth internal expansion part.

[0112] Further, it further comprises a left side sewing fixing part and a right side sewing fixing part, wherein:

[0113] The left side sewing fixing part vertically sews and fixes the left side box shell and the left side zipper cloth;

[0114] The right side sewing fixing part vertically sews and fixes the right side box shell and the right side zipper cloth.

[0115] The luggage folding and expanding zipper also discloses a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a first middle zipper cloth, a second middle zipper cloth, a left side lining cloth, a right side lining cloth, a left side zipper cloth outer zipper tooth, a left side zipper cloth inner zipper tooth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, a left side zipper cloth lower folding part, a left side zipper cloth inner expanding part, a right side zipper cloth outer zipper tooth, a right side zipper cloth inner zipper tooth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, a right side zipper cloth lower folding part, a right side zipper cloth inner expanding part, a first middle zipper cloth first side zipper tooth, a first middle zipper cloth second side zipper tooth, a first middle sewing fixing part, a second middle zipper cloth first side zipper tooth, a second middle zipper cloth second side zipper tooth, and a second middle sewing fixing part.

[0116] The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the first middle zipper cloth and the second middle zipper cloth.

[0117] The side of the left side zipper cloth is reversely arc-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth.

[0118] The left side zipper cloth upper folding part is located above the end of the left side box shell close to the right side box shell.

[0119] The left side zipper cloth middle folding part is wrapped around the end of the left side box shell close to the right side box shell and the end of the left side lining cloth inside the left side box shell.

[0120] The left side zipper cloth lower folding part is located inside the left side lining cloth.

[0121] The left side zipper cloth inner expanding part is V-shaped and arranged below the first middle zipper cloth and the left side zipper cloth, one end of the left side zipper cloth inner expanding part is connected with the left side zipper cloth lower folding part, and the other end is connected with the left side zipper cloth inner zipper tooth.

[0122] The side of the right side zipper cloth is arc-shaped and circumvents the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper tooth, and the other end is provided with the right side zipper cloth inner zipper tooth.

[0123] The right side zipper cloth upper folding part is located above the end of the right side box shell close to the left side box shell.

[0124] The right side zipper cloth middle folding part is wrapped around the end of the right side box shell close to the left side box shell and the end of the right side lining cloth inside the right side box shell.

[0125] The right side zipper cloth lower folding part is located on the inner side of the right side lining cloth;

[0126] The right side zipper cloth internal expansion part is provided in a V-shaped structure below the second intermediate zipper cloth and the right side zipper cloth, one end is connected to the right side zipper cloth lower folding part, and the other end is connected to the right side zipper cloth internal zipper tooth;

[0127] The first intermediate zipper cloth is horizontally provided, one end is provided with the first intermediate zipper cloth first side zipper tooth, and the other end is provided with the first intermediate zipper cloth second side zipper tooth;

[0128] The first intermediate sewing fixing part fixes the middle part of the first intermediate zipper cloth and the right end of the left side zipper cloth internal expansion part vertically;

[0129] The first intermediate zipper cloth first side zipper tooth is horizontally provided in correspondence with the left side zipper cloth external zipper tooth, and the opening and closing operation of the left side zipper cloth and the first intermediate zipper cloth is realized through one zipper head, and in the open state of the zipper head, the expansion of the left side box shell is realized through the expansion of the left side zipper cloth internal expansion part;

[0130] The second intermediate zipper cloth is horizontally provided, one end is provided with the second intermediate zipper cloth first side zipper tooth, and the other end is provided with the second intermediate zipper cloth second side zipper tooth;

[0131] The second intermediate sewing fixing part fixes the middle part of the second intermediate zipper cloth and the left end of the right side zipper cloth internal expansion part vertically;

[0132] The second intermediate zipper cloth second side zipper tooth is horizontally provided in correspondence with the right side zipper cloth external zipper tooth, and the opening and closing operation of the right side zipper cloth and the second intermediate zipper cloth is realized through one zipper head, and in the open state of the zipper head, the expansion of the right side box shell is realized through the expansion of the right side zipper cloth internal expansion part;

[0133] The first intermediate zipper cloth and the second intermediate zipper cloth are both horizontally provided between the upper surfaces of the left side zipper cloth and the right side zipper cloth;

[0134] The first intermediate zipper cloth second side zipper tooth and the second intermediate zipper cloth first side zipper tooth are horizontally provided in correspondence, and the left side zipper cloth internal zipper tooth and the right side zipper cloth internal zipper tooth are horizontally provided in correspondence;

[0135] The first intermediate zipper cloth second side zipper tooth and the left side zipper cloth internal zipper tooth are provided in correspondence above and below, and the second intermediate zipper cloth first side zipper tooth and the right side zipper cloth internal zipper tooth are provided in correspondence above and below;

[0136] The first intermediate zipper cloth second side zipper teeth and the first intermediate zipper cloth first side zipper teeth realize the opening and closing operation of the first intermediate zipper cloth and the second intermediate zipper cloth through an upper layer part of a double-layer zipper head; and the left side zipper cloth internal zipper teeth and the right side zipper cloth internal zipper teeth realize the opening and closing operation of the left side zipper cloth and the right side zipper cloth through a lower layer part of a double-layer zipper head, forming a double-layer anti-explosion zipper structure, and further realizing the overall opening and closing of the left side box shell and the right side box shell.

[0137] Further, the left side sewing fixing part and the right side sewing fixing part are further included, wherein:

[0138] The left side sewing fixing part fixes the left side box shell, the left side lining cloth and the left side zipper cloth vertically by sewing;

[0139] The right side sewing fixing part fixes the right side box shell, the right side lining cloth and the right side zipper cloth vertically by sewing.

[0140] The application further discloses a luggage case with a multi-layer folding capacity-expanding zipper, and at least includes the zipper in any one of the above.

[0141] Compared with the prior art, the application has the following advantages and positive effects:

[0142] The luggage case folding zipper, the folding capacity-expanding zipper and the luggage case with the zipper can meet the volume demand and convenience of the luggage case in different scenarios, cancel the decorative adhesive tape, directly fix the zipper woven belt structure with the luggage case by sewing, realize the space expansion of the left side box shell and the right side box shell by increasing the left side zipper cloth internal expansion part and the right side zipper cloth internal expansion part, can accommodate more luggage, and has the characteristics of ingenious design, material saving, simple processing, and beautiful appearance. BRIEF DESCRIPTION OF DRAWINGS

[0143] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. In the drawings:

[0144] Fig. 1 is a structure perspective view of a luggage case folding zipper corresponding to the first embodiment of the application;

[0145] Fig. 2 is a structure sectional view of a luggage case folding zipper corresponding to the first embodiment of the application;

[0146] Fig. 3 is a structure perspective view of a luggage case folding zipper corresponding to the second embodiment of the application;

[0147] Fig. 4 is a sectional view of a folding zipper of a luggage according to the second embodiment of the present application;

[0148] Fig. 5 is a perspective view of a folding and expanding zipper of a luggage according to the third embodiment of the present application;

[0149] Fig. 6 is a sectional view of a folding and expanding zipper of a luggage according to the third embodiment of the present application;

[0150] Fig. 7 is a perspective view of a folding and expanding zipper of a luggage according to the fourth embodiment of the present application;

[0151] Fig. 8 is a sectional view of a folding and expanding zipper of a luggage according to the fourth embodiment of the present application;

[0152] Fig. 9 is a perspective view of a folding and expanding zipper of a luggage according to the fifth embodiment of the present application;

[0153] Fig. 10 is a sectional view of a folding and expanding zipper of a luggage according to the fifth embodiment of the present application;

[0154] Fig. 11 is a perspective view of a folding and expanding zipper of a luggage according to the sixth embodiment of the present application;

[0155] Fig. 12 is a sectional view of a folding and expanding zipper of a luggage according to the sixth embodiment of the present application;

[0156] Fig. 13 is a perspective view of a folding and expanding zipper of a luggage according to the seventh embodiment of the present application;

[0157] Fig. 14 is a sectional view of a folding and expanding zipper of a luggage according to the seventh embodiment of the present application;

[0158] Fig. 15 is a schematic view of a luggage having a folding and expanding zipper according to the present application.

[0159] [Main symbol explanation] 1 - left side box shell; 2 - right side box shell; 3 - left side zipper cloth; 31 - left side zipper cloth outer zipper teeth; 32 - left side zipper cloth inner zipper teeth; 33 - left side zipper cloth upper folding part; 34 - left side zipper cloth middle folding part; 35 - left side zipper cloth lower folding part; 36 - left side zipper cloth inner expansion part; 4 - right side zipper cloth; 41 - right side zipper cloth outer zipper teeth; 42 - right side zipper cloth inner zipper teeth; 43 - right side zipper cloth upper folding part; 44 - right side zipper cloth middle folding part; 45 - right side zipper cloth lower folding part; 46 - right side zipper cloth inner expansion part; 47 - right side zipper cloth expansion folding part; 5 - middle zipper cloth; 51 - first side zipper teeth of middle zipper cloth; 52 - second side zipper teeth of middle zipper cloth; 6 - middle sewing fixing piece; 7 - left side sewing fixing piece; 8 - right side sewing fixing piece; 9 - left side lining cloth; 91 - left side lining cloth zipper teeth; 10 - right side lining cloth; 101 - right side lining cloth zipper teeth; 11 - first middle zipper cloth; 111 - first side zipper teeth of first middle zipper cloth; 112 - second side zipper teeth of first middle zipper cloth; 12 - second middle zipper cloth; 121 - first side zipper teeth of second middle zipper cloth; 122 - second side zipper teeth of second middle zipper cloth; 13 - first middle sewing fixing piece; 14 - second middle sewing fixing piece. DETAILED DESCRIPTION

[0160] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0161] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0162] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0163] Embodiment one

[0164] As shown in Figures 1 and 2, the present application discloses a luggage folding zipper, comprising a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a left side lining cloth 9, a right side lining cloth 10, a left side zipper cloth outer zipper tooth 31, a left side zipper cloth inner zipper tooth 32, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a right side zipper cloth outer zipper tooth 41, a right side zipper cloth inner zipper tooth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, a left side lining cloth zipper tooth 91, and a right side lining cloth zipper tooth 101, wherein:

[0165] The opening ends of the left side box shell 1 and the right side box shell 2 are oppositely arranged, and an openable opening is formed by the left side zipper cloth 3 and the right side zipper cloth 4;

[0166] The side of the left side zipper cloth 3 is arranged in an S-shaped detour at the end of the left side box shell 1, one end of the left side zipper cloth 3 is provided with the left side zipper cloth outer zipper tooth 31, and the other end is provided with the left side zipper cloth inner zipper tooth 32;

[0167] The left side lining cloth 9 is provided with the left side lining cloth zipper tooth 91 close to one side of the left side zipper cloth 3, the left side lining cloth zipper tooth 91 is oppositely arranged with the left side zipper cloth inner zipper tooth 32 and simultaneously located inside the left side box shell 1, and is connected by a zipper head, for fixing the left side lining cloth 9 and the left side zipper cloth 3 to each other;

[0168] The left side zipper cloth upper folding part 33 is located above one end of the left side box shell 1 close to the right side box shell 2;

[0169] The left side zipper cloth middle folding part 34 is wrapped around the end of one end of the left side box shell 1 close to the right side box shell 2;

[0170] The side of the right side zipper cloth 4 is arranged in an inverse S-shaped detour at the end of the right side box shell 2, one end of the right side zipper cloth 4 is provided with the right side zipper cloth outer zipper tooth 41, and the other end is provided with the right side zipper cloth inner zipper tooth 42;

[0171] The right side inner lining cloth 10 is provided with the right side inner lining cloth zipper teeth 101 on the side close to the right side zipper cloth 4, which is arranged opposite to the right side zipper cloth inner zipper teeth 42 and is inside the right side box shell 2, and is connected by the zipper head to fix the right side inner lining cloth 10 and the right side zipper cloth 4.

[0172] The right side zipper cloth upper folding part 43 is above the end of the right side box shell 2 close to the left side box shell 1.

[0173] The right side zipper cloth middle folding part 44 is wrapped around the end of the right side box shell 2 close to the left side box shell 1.

[0174] The left side zipper cloth outer zipper teeth 31 and the right side zipper cloth outer zipper teeth 41 are arranged opposite to each other, which is used to fix the left side zipper cloth 3 and the right side zipper cloth 4 to open and close the left side box shell 1 and the right side box shell 2.

[0175] Further, it also includes the left side sewing fixing part 7 and the right side sewing fixing part 8, wherein:

[0176] The left side sewing fixing part 7 vertically sews and fixes the left side box shell 1 and the left side zipper cloth 3.

[0177] The right side sewing fixing part 8 vertically sews and fixes the right side box shell 2 and the right side zipper cloth 4.

[0178] In actual operation, the left side zipper cloth inner zipper teeth 32 and the left side inner lining cloth zipper teeth 91, and the right side zipper cloth inner zipper teeth 42 and the right side inner lining cloth zipper teeth 101 are pulled together, which can complete the pulling together of the left side zipper cloth 3 and the left side inner lining cloth 9, and the right side zipper cloth 4 and the right side inner lining cloth 10. In addition, the left side zipper cloth outer zipper teeth 31 and the right side zipper cloth outer zipper teeth 41 are pulled together, which can complete the pulling together of the left side box shell 1 and the right side box shell 2.

[0179] Example two

[0180] As shown in FIG. 3 and 4, the application also discloses a luggage folding zipper, which includes a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a left side inner lining cloth 9, a right side inner lining cloth 10, a left side zipper cloth outer zipper teeth 31, a left side zipper cloth inner zipper teeth 32, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a left side zipper cloth lower folding part 35, a right side zipper cloth outer zipper teeth 41, a right side zipper cloth inner zipper teeth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, and a right side zipper cloth lower folding part 45, wherein:

[0181] The open ends of the left and right box shells 1 and 2 are oppositely arranged, and the openable openings are formed by the left and right zipper cloths 3 and 4;

[0182] The side of the left zipper cloth 3 is arranged in a reverse arch shape at the end of the left box shell 1, one end of the left zipper cloth 3 is provided with the left zipper cloth outer zipper teeth 31, and the other end is provided with the left zipper cloth inner zipper teeth 32, and the left zipper cloth outer zipper teeth 31 and the left zipper cloth inner zipper teeth 32 are arranged in a one-to-one correspondence.

[0183] The left zipper cloth upper folding part 33 is located above the end of the left box shell 1 close to the right box shell 2.

[0184] The left zipper cloth middle folding part 34 is wrapped around the end of the left box shell 1 close to the right box shell 2 and the end of the left lining cloth 9 inside the left box shell 1.

[0185] The left zipper cloth lower folding part 35 is located inside the left lining cloth 9.

[0186] The side of the right zipper cloth 4 is arranged in an arch shape at the end of the right box shell 2, one end of the right zipper cloth 4 is provided with the right zipper cloth outer zipper teeth 41, and the other end is provided with the right zipper cloth inner zipper teeth 42, and the right zipper cloth outer zipper teeth 41 and the right zipper cloth inner zipper teeth 42 are arranged in a one-to-one correspondence.

[0187] The right zipper cloth upper folding part 43 is located above the end of the right box shell 2 close to the left box shell 1.

[0188] The right zipper cloth middle folding part 44 is wrapped around the end of the right box shell 2 close to the left box shell 1 and the end of the right lining cloth 10 inside the right box shell 2.

[0189] The right zipper cloth lower folding part 45 is located inside the right lining cloth 10.

[0190] The left and right zipper cloth outer zipper teeth 31 and 41 are arranged in a left-right correspondence, and the left and right zipper cloth inner zipper teeth 32 and 42 are arranged in a left-right correspondence.

[0191] The left and right zipper cloth outer zipper teeth 31 and 41, and the left and right zipper cloth inner zipper teeth 32 and 42 simultaneously realize the double-layer opening and closing operation of the left and right zipper cloths 3 and 4 through a double-layer zipper head, form a double-layer anti-explosion zipper structure, and further realize the opening and closing of the left and right box shells 1 and 2.

[0192] Further, it also includes a left side sewing fixing part 7 and a right side sewing fixing part 8, wherein:

[0193] The left side sewing fixing part 7 vertically sews and fixes the left side box shell 1, the left side lining cloth 9 and the left side zipper cloth 3;

[0194] The right side sewing fixing part 8 vertically sews and fixes the right side box shell 2, the right side lining cloth 10 and the right side zipper cloth 4.

[0195] In actual operation, the left side lining cloth 9 and the right side lining cloth 10 are directly fixed below the end of the left side box shell 1 and the right side box shell 2 through the left side sewing fixing part 7 and the right side sewing fixing part 8. In addition, the left side box shell 1 and the right side box shell 2 can be pulled together by pulling together the left side zipper cloth external zipper teeth 31 and the right side zipper cloth external zipper teeth 41, and the left side zipper cloth internal zipper teeth 32 and the right side zipper cloth internal zipper teeth 42 through a double zipper head.

[0196] Embodiment three

[0197] As shown in FIGS. 5 and 6, the present application also discloses a luggage folding and expanding zipper, which includes a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a middle zipper cloth 5, a left side lining cloth 9, a right side lining cloth 10, left side zipper cloth external zipper teeth 31, left side zipper cloth internal zipper teeth 32, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a left side zipper cloth lower folding part 35, right side zipper cloth external zipper teeth 41, right side zipper cloth internal zipper teeth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, a right side zipper cloth lower folding part 45, a right side zipper cloth internal expanding part 46, a middle zipper cloth first side zipper teeth 51, a middle zipper cloth second side zipper teeth 52, and a middle sewing fixing part 6, wherein:

[0198] The opening ends of the left side box shell 1 and the right side box shell 2 are oppositely arranged, and an openable opening is formed through the left side zipper cloth 3 and the right side zipper cloth 4;

[0199] The side of the left side zipper cloth 3 is reversely and circumstantially arranged in the end of the left side box shell 1 in a reverse arch shape, one end of the left side zipper cloth 3 is provided with the left side zipper cloth external zipper teeth 31, and the other end is provided with the left side zipper cloth internal zipper teeth 32, and the left side zipper cloth external zipper teeth 31 and the left side zipper cloth internal zipper teeth 32 are oppositely arranged.

[0200] The left side zipper cloth upper folding part 33 is located above the end of the left side box shell 1 close to the right side box shell 2;

[0201] The left side zipper cloth middle folding part 34 wraps the end of the left side box shell 1 close to the right side box shell 2 and the left side inner lining cloth 9 inside the left side box shell 1 at the same time;

[0202] The left side zipper cloth lower folding part 35 is located inside the left side inner lining cloth 9;

[0203] The side of the right side zipper cloth 4 is arranged in an arch shape around the end of the right side box shell 2, one end of the right side zipper cloth 4 is provided with the right side zipper cloth outer zipper teeth 41, the other end is provided with the right side zipper cloth inner zipper teeth 42, and the right side zipper cloth inner zipper teeth 42 and the left side zipper cloth inner zipper teeth 32 are arranged horizontally corresponding;

[0204] The right side zipper cloth upper folding part 43 is located above the end of the right side box shell 2 close to the left side box shell 1;

[0205] The right side zipper cloth middle folding part 44 wraps the end of the right side box shell 2 close to the left side box shell 1 and the right side inner lining cloth 10 inside the right side box shell 2 at the same time;

[0206] The right side zipper cloth lower folding part 45 is located inside the right side inner lining cloth 10;

[0207] The right side zipper cloth inner expansion part 46 is arranged in a V-shaped structure below the middle zipper cloth 5 and the right side zipper cloth 4, one end is connected to the right side zipper cloth lower folding part 45, and the other end is connected to the right side zipper cloth inner zipper teeth 42;

[0208] The middle zipper cloth 5 is horizontally arranged between the upper surfaces of the left side zipper cloth 3 and the right side zipper cloth 4, one end is provided with the middle zipper cloth first side zipper teeth 51, and the other end is provided with the middle zipper cloth second side zipper teeth 52;

[0209] The middle zipper cloth first side zipper teeth 51 are arranged horizontally corresponding to the left side zipper cloth outer zipper teeth 31, and at the same time, the middle zipper cloth first side zipper teeth 51 are arranged vertically corresponding to the right side zipper cloth inner zipper teeth 42, and the middle zipper cloth second side zipper teeth 52 are arranged horizontally corresponding to the right side zipper cloth outer zipper teeth 41;

[0210] The middle sewing fixing part 6 vertically sews and fixes the middle part of the middle zipper cloth 5 and the left end of the right side zipper cloth inner expansion part 46;

[0211] The left side zipper cloth outer zipper teeth 31 and the middle zipper cloth first side zipper teeth 51, and the left side zipper cloth inner zipper teeth 32 and the right side zipper cloth inner zipper teeth 42 are simultaneously implemented by a double-layer zipper head to realize the double-layer opening and closing operation of the inside and outside of the left side zipper cloth 3, the middle zipper cloth 5 and the right side zipper cloth inner expansion part 46, forming a double-layer explosion-proof zipper structure, and further realizing the opening and closing of the left side box shell 1 and the right side box shell 2.

[0212] The middle zipper cloth second side zipper teeth 52 and the right side zipper cloth outer zipper teeth 41 are implemented by a zipper head to realize the opening and closing operation of the right side zipper cloth 4 and the middle zipper cloth 5, and in the open state of the zipper head, the expansion of the right side zipper cloth inner expansion part 46 realizes the expansion of the right side box shell 2.

[0213] Further, it also includes a left side sewing fixing part 7 and a right side sewing fixing part 8, wherein:

[0214] The left side sewing fixing part 7 vertically sews and fixes the left side box shell 1, the left side lining cloth 9 and the left side zipper cloth 3.

[0215] The right side sewing fixing part 8 vertically sews and fixes the right side box shell 2, the right side lining cloth 10 and the right side zipper cloth 4.

[0216] In actual operation, the left side lining cloth 9 and the right side lining cloth 10 are directly fixed below the end part of the left side box shell 1 and the right side box shell 2 through the left side sewing fixing part 7 and the right side sewing fixing part 8. In addition, the left side box shell 1 and the right side box shell 2 (the middle zipper cloth 5) can be pulled together by simultaneously pulling and closing the left side zipper cloth outer zipper teeth 31 and the middle zipper cloth first side zipper teeth 51, and the left side zipper cloth inner zipper teeth 32 and the right side zipper cloth inner zipper teeth 42 through a double-layer zipper head. In addition, the middle zipper cloth 5 and the right side zipper cloth 4 can be separated by pulling apart the middle zipper cloth second side zipper teeth 52 and the right side zipper cloth outer zipper teeth 41 through a zipper head, so that the right side box shell 2 can increase the use space.

[0217] Example Four

[0218] As shown in Figures 7 and 8, the luggage folding capacity expanding zipper further discloses a luggage folding capacity expanding zipper, comprising a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a middle zipper cloth 5, a left side inner lining cloth 9, a right side inner lining cloth 10, a left side zipper cloth outer zipper tooth 31, a left side zipper cloth inner zipper tooth 32, a left side inner lining cloth zipper tooth 91, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a right side zipper cloth outer zipper tooth 41, a right side zipper cloth inner zipper tooth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, a right side zipper cloth lower folding part 45, a right side zipper cloth inner capacity expanding part 46, a right side zipper cloth capacity expanding folding part 47, a right side inner lining cloth zipper tooth 101, a middle zipper cloth first side zipper tooth 51, a middle zipper cloth second side zipper tooth 52, a middle sewing fixing part 6, wherein:

[0219] The opening ends of the left side box shell 1 and the right side box shell 2 are oppositely arranged, and the openable openings are formed by the left side zipper cloth 3 and the right side zipper cloth 4;

[0220] The side of the left side zipper cloth 3 is S-shaped and circumvents the end of the left side box shell 1, and one end of the left side zipper cloth 3 is provided with the left side zipper cloth outer zipper tooth 31, and the other end is provided with the left side zipper cloth inner zipper tooth 32;

[0221] The left side inner lining cloth 9 is provided with the left side inner lining cloth zipper tooth 91 close to one side of the left side zipper cloth 3, the left side inner lining cloth zipper tooth 91 is oppositely arranged with the left side zipper cloth inner zipper tooth 32 and simultaneously located inside the left side box shell 1, and is connected by a zipper head, used to fix the left side inner lining cloth 9 and the left side zipper cloth 3 to each other;

[0222] The left side zipper cloth upper folding part 33 is located above the end of the left side box shell 1 close to the right side box shell 2;

[0223] The left side zipper cloth middle folding part 34 wraps the end of the left side box shell 1 close to the right side box shell 2;

[0224] The side of the right side zipper cloth 4 is arch-shaped and circumvents the end of the right side box shell 2, and one end of the right side zipper cloth 4 is provided with the right side zipper cloth outer zipper tooth 41, and the other end is provided with the right side zipper cloth inner zipper tooth 42;

[0225] The right side zipper cloth upper folding part 43 is located above the end of the right side box shell 2 close to the left side box shell 1;

[0226] The right side zipper cloth middle folding part 44 wraps the end of the right side box shell 2 close to the left side box shell 1;

[0227] The right side zipper cloth lower folding part 45 is located on the inner side of the right side lining cloth 10;

[0228] The right side zipper cloth internal expansion part 46 is arranged in a V-shaped structure below the intermediate zipper cloth 5 and the right side zipper cloth 4, one end of which is connected to the right side zipper cloth lower folding part 45, and the other end is connected to the left side zipper cloth internal zipper teeth 32;

[0229] The right side zipper cloth expansion folding part 47 is located below the intermediate zipper cloth 5, one end of which is connected to the right side zipper cloth internal expansion part 46, and the other end is folded downward from the lower part and connected to the left side zipper cloth internal zipper teeth 32;

[0230] The intermediate zipper cloth 5 is horizontally arranged between the upper surfaces of the left side zipper cloth 3 and the right side zipper cloth 4, one end of which is provided with the intermediate zipper cloth first side zipper teeth 51, and the other end is provided with the intermediate zipper cloth second side zipper teeth 52;

[0231] The intermediate zipper cloth first side zipper teeth 51 are horizontally arranged in correspondence with the left side zipper cloth external zipper teeth 31, and the intermediate zipper cloth second side zipper teeth 52 are horizontally arranged in correspondence with the right side zipper cloth external zipper teeth 41;

[0232] The intermediate sewing fixing part 6 vertically sews and fixes the middle part of the intermediate zipper cloth 5 and the right side zipper cloth expansion folding part 47;

[0233] The right side lining cloth 10 is provided with the right side lining cloth zipper teeth 101 on the side close to the right side zipper cloth internal expansion part 46, which is arranged opposite to the right side zipper cloth internal zipper teeth 42 and is located on the inner side of the right side zipper cloth internal expansion part 46, and is connected by a zipper head, for fixing the right side lining cloth 10 and the right side zipper cloth to each other;

[0234] The left side zipper cloth external zipper teeth 31 and the intermediate zipper cloth first side zipper teeth 51 are horizontally arranged in correspondence, and a zipper head is used to realize the opening and closing operation of the left side zipper cloth 3 and the intermediate zipper cloth 5, thereby realizing the opening and closing of the left side box shell 1 and the right side box shell 2;

[0235] The intermediate zipper cloth second side zipper teeth 52 and the right side zipper cloth external zipper teeth 41 are horizontally arranged in correspondence, and a zipper head is used to realize the opening and closing operation of the right side zipper cloth 4 and the intermediate zipper cloth 5, and in the open state of the zipper head, the expansion of the right side box shell 2 is realized by the stretching of the right side zipper cloth internal expansion part 46.

[0236] Further, it further includes a left side sewing fixing part 7 and a right side sewing fixing part 8, wherein:

[0237] The left side sewing fixing part 7 vertically sews the left side box shell 1 and the left side zipper cloth 3.

[0238] The right side sewing fixing part 8 vertically sews the right side box shell 2 and the right side zipper cloth 4.

[0239] In actual operation, the left side zipper cloth inner zipper teeth 32 and the left side lining cloth zipper teeth 91, and the right side zipper cloth inner zipper teeth 42 and the right side lining cloth zipper teeth 101 are pulled together respectively, so as to pull together the left side zipper cloth 3 and the left side lining cloth 9, and pull together the right side zipper cloth 4 and the right side lining cloth 10. In addition, the left side zipper cloth outer zipper teeth 31 and the middle zipper cloth first side zipper teeth 51 are pulled together by a zipper head, so as to pull together the left side box shell 1 and the right side box shell 2 (the middle zipper cloth 5). In addition, the middle zipper cloth second side zipper teeth 52 and the right side zipper cloth outer zipper teeth 41 are pulled apart by a zipper head, so as to separate the middle zipper cloth 5 and the right side zipper cloth 4, thereby increasing the use space of the right side box shell 2.

[0240] Embodiment five

[0241] As shown in FIGS. 9 and 10, the luggage folding and expanding zipper further discloses a luggage folding and expanding zipper, comprising a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a middle zipper cloth 5, a left side lining cloth 9, a right side lining cloth 10, left side zipper cloth outer zipper teeth 31, left side zipper cloth inner zipper teeth 32, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a left side zipper cloth lower folding part 35, right side zipper cloth outer zipper teeth 41, right side zipper cloth inner zipper teeth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, a right side zipper cloth lower folding part 45, a right side zipper cloth inner expanding part 46, a middle zipper cloth first side zipper teeth 51, a middle zipper cloth second side zipper teeth 52, a middle sewing fixing part 6, wherein:

[0242] The opening ends of the left side box shell 1 and the right side box shell 2 are oppositely arranged, and an openable opening is formed by the left side zipper cloth 3 and the right side zipper cloth 4;

[0243] The side of the left side zipper cloth 3 is reversely arc-shaped and circumvents the end of the left side box shell 1, one end of the left side zipper cloth 3 is provided with the left side zipper cloth outer zipper teeth 31, and the other end is provided with the left side zipper cloth inner zipper teeth 32, and the left side zipper cloth outer zipper teeth 31 and the left side zipper cloth inner zipper teeth 32 are oppositely arranged.

[0244] The left side zipper cloth upper folding part 33 is above the end of the left side box shell 1 close to the right side box shell 2.

[0245] The left side zipper cloth middle folding part 34 wraps the end of the left side box shell 1 close to the right side box shell 2 and the left side lining cloth 9 inside the left side box shell 1 at the same time;

[0246] The left side zipper cloth lower folding part 35 is located inside the left side lining cloth 9;

[0247] The side of the right side zipper cloth 4 is arranged in an arc shape around the end of the right side box shell 2, one end of the right side zipper cloth 4 is provided with the right side zipper cloth outer zipper tooth 41, and the other end is provided with the right side zipper cloth inner zipper tooth 42;

[0248] The right side zipper cloth upper folding part 43 is located above the end of the right side box shell 2 close to the left side box shell 1;

[0249] The right side zipper cloth middle folding part 44 wraps the end of the right side box shell 2 close to the left side box shell 1 and the right side lining cloth 10 inside the right side box shell 2 at the same time;

[0250] The right side zipper cloth lower folding part 45 is located inside the right side lining cloth 10;

[0251] The right side zipper cloth inner expansion part 46 is arranged in a V-shaped structure below the right side zipper cloth 4, one end is connected to the right side zipper cloth lower folding part 45, and the other end is folded upwards from the lower part and connected to the right side zipper cloth inner zipper tooth 42;

[0252] The first side and the second side of the middle zipper cloth 5 are arranged at an acute angle, one end is provided with the middle zipper cloth first side zipper tooth 51, and the other end is provided with the middle zipper cloth second side zipper tooth 52;

[0253] The middle zipper cloth first side zipper tooth 51 and the middle zipper cloth second side zipper tooth 52 are arranged in a corresponding upper and lower manner;

[0254] The middle zipper cloth first side zipper tooth 51 and the left side zipper cloth outer zipper tooth 31 are arranged in a horizontal corresponding manner;

[0255] The middle zipper cloth second side zipper tooth 52 and the left side zipper cloth inner zipper tooth 32 are arranged in a horizontal corresponding manner;

[0256] The middle sewing fixing part 6 horizontally sews and fixes the end of the middle zipper cloth 5 close to the middle zipper cloth first side zipper tooth 51 and the end of the right side zipper cloth inner expansion part 46 close to the right side zipper cloth inner zipper tooth 42;

[0257] The left side zipper cloth outer zipper teeth 31 and the middle zipper cloth first side zipper teeth 51, and the left side zipper cloth inner zipper teeth 32 and the middle zipper cloth second side zipper teeth 52 are simultaneously implemented by a double-layer zipper head to realize the double-layer opening and closing operation of the inside and outside of the left side zipper cloth 3 and the middle zipper cloth 5, forming a double-layer explosion-proof zipper structure, thereby realizing the opening and closing of the left side box shell 1 and the right side box shell 2.

[0258] The right side zipper cloth inner zipper teeth 42 and the right side zipper cloth outer zipper teeth 41 are horizontally corresponding, and are implemented by a zipper head to realize the inside and outside opening and closing operation of the right side zipper cloth 4 itself, and in the open state of the zipper head, the right side box shell 2 is expanded by the extension of the right side zipper cloth inner expansion part 46.

[0259] Further, it also includes a left side sewing fixing part 7 and a right side sewing fixing part 8, wherein:

[0260] The left side sewing fixing part 7 vertically sews and fixes the left side box shell 1, the left side lining cloth 9 and the left side zipper cloth 3.

[0261] The right side sewing fixing part 8 vertically sews and fixes the right side box shell 2, the right side lining cloth 10 and the right side zipper cloth 4.

[0262] In actual operation, the left side lining cloth 9 and the right side lining cloth 10 are directly fixed below the end of the left side box shell 1 and the right side box shell 2 through the left side sewing fixing part 7 and the right side sewing fixing part 8. In addition, the left side box shell 1 and the right side box shell 2 (the middle zipper cloth 5) can be pulled together by simultaneously pulling together the left side zipper cloth outer zipper teeth 31 and the middle zipper cloth first side zipper teeth 51, and the left side zipper cloth inner zipper teeth 32 and the middle zipper cloth second side zipper teeth 52 through a double-layer zipper head. In addition, the middle zipper cloth 5 and the right side zipper cloth 4 can be separated by pulling apart the right side zipper cloth inner zipper teeth 42 and the right side zipper cloth outer zipper teeth 41 through a zipper head, so that the right side box shell 2 can increase the use space.

[0263] Example six

[0264] As shown in Figures 11 and 12, the luggage folding capacity expansion zipper further comprises a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a middle zipper cloth 5, a left side inner lining cloth 9, a right side inner lining cloth 10, a left side zipper cloth outer zipper tooth 31, a left side zipper cloth inner zipper tooth 32, a left side inner lining cloth zipper tooth 91, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a right side zipper cloth outer zipper tooth 41, a right side zipper cloth inner zipper tooth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, a right side zipper cloth lower folding part 45, a right side zipper cloth inner capacity expansion part 46, a right side inner lining cloth zipper tooth 101, a middle zipper cloth first side zipper tooth 51, a middle zipper cloth second side zipper tooth 52, a middle sewing fixing part 6, wherein:

[0265] The opening ends of the left side box shell 1 and the right side box shell 2 are oppositely arranged, and an openable opening is formed by the left side zipper cloth 3 and the right side zipper cloth 4;

[0266] The side of the left side zipper cloth 3 is S-shaped and circumvents the end of the left side box shell 1, and one end of the left side zipper cloth 3 is provided with the left side zipper cloth outer zipper tooth 31, and the other end is provided with the left side zipper cloth inner zipper tooth 32;

[0267] The left side inner lining cloth 9 is provided with the left side inner lining cloth zipper tooth 91 close to one side of the left side zipper cloth 3, the left side inner lining cloth zipper tooth 91 is oppositely arranged with the left side zipper cloth inner zipper tooth 32 and simultaneously located inside the left side box shell 1, and is connected by a zipper head, used to fix the left side inner lining cloth 9 and the left side zipper cloth 3 to each other;

[0268] The left side zipper cloth upper folding part 33 is located above the end of the left side box shell 1 close to the right side box shell 2;

[0269] The left side zipper cloth middle folding part 34 wraps around the end of the left side box shell 1 close to the right side box shell 2;

[0270] The side of the right side zipper cloth 4 is arc-shaped and circumvents the end of the right side box shell 2, and one end of the right side zipper cloth 4 is provided with the right side zipper cloth outer zipper tooth 41, and the other end is provided with the right side zipper cloth inner zipper tooth 42;

[0271] The right side zipper cloth upper folding part 43 is located above the end of the right side box shell 2 close to the left side box shell 1;

[0272] The right side zipper cloth middle folding part 44 wraps around the end of the right side box shell 2 close to the left side box shell 1;

[0273] The right side zipper cloth lower folding part 45 is located on the inner side of the right side box shell 2;

[0274] The right side zipper cloth internal expansion part 46 is arranged in a V-shaped structure below the right side zipper cloth 4, one end is connected to the right side zipper cloth lower folding part 45, and the other end is folded upwards from the lower part and connected to the right side zipper cloth internal zipper tooth 42;

[0275] The first side and the second side of the middle zipper cloth 5 are arranged at an obtuse angle, one end is provided with the middle zipper cloth first side zipper tooth 51, and the other end is provided with the middle zipper cloth second side zipper tooth 52;

[0276] The right side lining cloth 10 is provided with the right side lining cloth zipper tooth 101 on one side close to the middle zipper cloth 5, the right side lining cloth zipper tooth 101 is arranged opposite to the middle zipper cloth second side zipper tooth 52 and is located inside the right side zipper cloth internal expansion part 46, and is connected by a zipper head, for fixing the right side lining cloth 10 and the middle zipper cloth 5 to each other;

[0277] The middle sewing fixing part 6 horizontally sews and fixes the middle zipper cloth 5 close to one end of the middle zipper cloth first side zipper tooth 51 and the right side zipper cloth internal expansion part 46 close to one end of the right side zipper cloth internal zipper tooth 42;

[0278] The left side zipper cloth external zipper tooth 31 and the middle zipper cloth first side zipper tooth 51 are horizontally arranged in correspondence, and a zipper head is used to realize the opening and closing operation of the left side zipper cloth 3 and the middle zipper cloth 5, and further realize the opening and closing of the left side box shell 1 and the right side box shell 2;

[0279] The right side zipper cloth internal zipper tooth 42 and the right side zipper cloth external zipper tooth 41 are horizontally arranged in correspondence, and a zipper head is used to realize the internal and external opening and closing operation of the right side zipper cloth 4 itself, and in the open state of the zipper head, the right side box shell 2 is expanded by the stretching of the right side zipper cloth internal expansion part 46.

[0280] Further, it further includes a left side sewing fixing part 7 and a right side sewing fixing part 8, wherein:

[0281] The left side sewing fixing part 7 vertically sews and fixes the left side box shell 1 and the left side zipper cloth 3;

[0282] The right side sewing fixing part 8 vertically sews and fixes the right side box shell 2 and the right side zipper cloth 4.

[0283] In actual operation, the left side zipper cloth 3 and the left side inner lining cloth 9 can be closed by pulling together the left side zipper cloth inner zipper teeth 32 and the left side inner lining cloth zipper teeth 91, and the right side zipper cloth 4 and the right side inner lining cloth 10 can be closed by pulling together the middle zipper cloth second side zipper teeth 52 and the right side inner lining cloth zipper teeth 101. In addition, the left side box shell 1 and the right side box shell 2 (middle zipper cloth 5) can be closed by pulling together the left side zipper cloth outer zipper teeth 31 and the middle zipper cloth first side zipper teeth 51 with one zipper head. In addition, the middle zipper cloth 5 and the right side zipper cloth 4 can be separated by pulling apart the right side zipper cloth inner zipper teeth 42 and the right side zipper cloth outer zipper teeth 41 with one zipper head, so that the right side box shell 2 can increase the use space.

[0284] Example Seven

[0285] As shown in FIGS. 13 and 14, the luggage folding and expanding zipper further includes a left side box shell 1, a right side box shell 2, a left side zipper cloth 3, a right side zipper cloth 4, a first middle zipper cloth 11, a second middle zipper cloth 12, a left side inner lining cloth 9, a right side inner lining cloth 10, left side zipper cloth outer zipper teeth 31, left side zipper cloth inner zipper teeth 32, a left side zipper cloth upper folding part 33, a left side zipper cloth middle folding part 34, a left side zipper cloth lower folding part 35, a left side zipper cloth inner expanding part 36, right side zipper cloth outer zipper teeth 41, right side zipper cloth inner zipper teeth 42, a right side zipper cloth upper folding part 43, a right side zipper cloth middle folding part 44, a right side zipper cloth lower folding part 45, a right side zipper cloth inner expanding part 46, first middle zipper cloth first side zipper teeth 111, first middle zipper cloth second side zipper teeth 112, a first middle sewing fixing part 13, second middle zipper cloth first side zipper teeth 121, second middle zipper cloth second side zipper teeth 122, and a second middle sewing fixing part 14, wherein:

[0286] The opening ends of the left side box shell 1 and the right side box shell 2 are oppositely arranged, and an openable opening is formed by the first middle zipper cloth 11 and the second middle zipper cloth 12;

[0287] The side of the left side zipper cloth 3 is arranged in a reverse arch type around the end of the left side box shell 1, one end of the left side zipper cloth 3 is provided with the left side zipper cloth outer zipper teeth 31, and the other end is provided with the left side zipper cloth inner zipper teeth 32;

[0288] The left side zipper cloth upper folding part 33 is located above the end of the left side box shell 1 close to the right side box shell 2;

[0289] The left side zipper cloth middle folding part 34 is wrapped around the end of the left side box shell 1 close to the right side box shell 2 and the end of the left side inner lining cloth 9 inside the left side box shell 1.

[0290] The left side zipper cloth lower folding part 35 is located on the inner side of the left side lining cloth 9;

[0291] The left side zipper cloth internal expansion part 36 is arranged in a V-shaped structure below the first intermediate zipper cloth 11 and the left side zipper cloth 3, one end is connected to the left side zipper cloth lower folding part 35, and the other end is connected to the left side zipper cloth internal zipper teeth 32;

[0292] The side of the right side zipper cloth 4 is arranged in an arc shape around the end of the right side box shell 2, one end of the right side zipper cloth 4 is provided with the right side zipper cloth external zipper teeth 41, and the other end is provided with the right side zipper cloth internal zipper teeth 42;

[0293] The right side zipper cloth upper folding part 43 is located above the end of the right side box shell 2 close to the left side box shell 1;

[0294] The right side zipper cloth middle folding part 44 is wrapped around the end of the right side box shell 2 close to the left side box shell 1 and the right side lining cloth 10 located on the inner side of the right side box shell 2;

[0295] The right side zipper cloth lower folding part 45 is located on the inner side of the right side lining cloth 10;

[0296] The right side zipper cloth internal expansion part 46 is arranged in a V-shaped structure below the second intermediate zipper cloth 12 and the right side zipper cloth 4, one end is connected to the right side zipper cloth lower folding part 45, and the other end is connected to the right side zipper cloth internal zipper teeth 42;

[0297] The first intermediate zipper cloth 11 is arranged horizontally, one end is provided with the first intermediate zipper cloth first side zipper teeth 111, and the other end is provided with the first intermediate zipper cloth second side zipper teeth 112;

[0298] The first intermediate sewing fixing part 13 vertically sews and fixes the middle part of the first intermediate zipper cloth 11 and the right end of the left side zipper cloth internal expansion part 36;

[0299] The first intermediate zipper cloth first side zipper teeth 111 are arranged horizontally corresponding to the left side zipper cloth external zipper teeth 31, and the opening and closing operation of the left side zipper cloth 3 and the first intermediate zipper cloth 11 is realized through a zipper head, and in the open state of the zipper head, the expansion of the left side box shell 1 is realized through the expansion of the left side zipper cloth internal expansion part 36;

[0300] The second intermediate zipper cloth 12 is arranged horizontally, one end is provided with the second intermediate zipper cloth first side zipper teeth 121, and the other end is provided with the second intermediate zipper cloth second side zipper teeth 122;

[0301] The second intermediate sewing fixing part 14 vertically sews and fixes the middle part of the second intermediate zipper cloth 12 and the left end of the right side zipper cloth inner extension part 46;

[0302] The second side zipper teeth 122 of the second intermediate zipper cloth and the outer zipper teeth 41 of the right side zipper cloth are horizontally arranged in correspondence, and the opening and closing operation of the right side zipper cloth 4 and the second intermediate zipper cloth 12 is realized by a zipper head, and in the open state of the zipper head, the extension of the right side zipper cloth inner extension part 46 realizes the extension of the right side box shell 2;

[0303] The first intermediate zipper cloth 11 and the second intermediate zipper cloth 12 are horizontally arranged between the upper surfaces of the left side zipper cloth 3 and the right side zipper cloth 4;

[0304] The second side zipper teeth 112 of the first intermediate zipper cloth and the first side zipper teeth 121 of the second intermediate zipper cloth are horizontally arranged in correspondence, and the inner zipper teeth 32 of the left side zipper cloth and the inner zipper teeth 42 of the right side zipper cloth are horizontally arranged in correspondence;

[0305] The second side zipper teeth 112 of the first intermediate zipper cloth and the inner zipper teeth 32 of the left side zipper cloth are arranged in correspondence, and the first side zipper teeth 121 of the second intermediate zipper cloth and the inner zipper teeth 42 of the right side zipper cloth are arranged in correspondence;

[0306] The second side zipper teeth 112 of the first intermediate zipper cloth and the first side zipper teeth 121 of the second intermediate zipper cloth realize the opening and closing operation of the first intermediate zipper cloth 11 and the second intermediate zipper cloth 12 through the upper part of a double-layer zipper head; and the inner zipper teeth 32 of the left side zipper cloth and the inner zipper teeth 42 of the right side zipper cloth realize the opening and closing operation of the left side zipper cloth 3 and the right side zipper cloth 4 through the lower part of a double-layer zipper head, forming a double-layer anti-explosion zipper structure, and further realizing the overall opening and closing of the left side box shell 1 and the right side box shell 2.

[0307] Further, it further includes a left side sewing fixing part 7 and a right side sewing fixing part 8, wherein:

[0308] The left side sewing fixing part 7 vertically sews and fixes the left side box shell 1, the left side lining cloth 9 and the left side zipper cloth 3;

[0309] The right side sewing fixing part 8 vertically sews and fixes the right side box shell 2, the right side lining cloth 10 and the right side zipper cloth 4.

[0310] In actual operation, the left inner lining cloth 9 and the right inner lining cloth 10 are directly fixed under the end of the left box shell 1 and the right box shell 2 through the left side sewing fixing part 7 and the right side sewing fixing part 8. In addition, the left box shell 1 (the first intermediate zipper cloth 11) and the right box shell 2 (the second intermediate zipper cloth 12) can be pulled together by pulling and closing the first intermediate zipper cloth second side zipper teeth 112 and the second intermediate zipper cloth first side zipper teeth 121, and the left zipper cloth inner zipper teeth 32 and the right zipper cloth inner zipper teeth 42 through a double-layer zipper head. In addition, the first intermediate zipper cloth 11 and the left zipper cloth 3 can be separated by pulling apart the left zipper cloth outer zipper teeth 31 and the first intermediate zipper cloth first side zipper teeth 111 through a zipper head, so that the left box shell 1 can increase the use space. In addition, the second intermediate zipper cloth 12 and the right zipper cloth 4 can be separated by pulling apart the right zipper cloth outer zipper teeth 41 and the second intermediate zipper cloth second side zipper teeth 122 through a zipper head, so that the right box shell 2 can increase the use space.

[0311] Embodiment eight

[0312] As shown in Figure 15, the application also discloses a luggage bag with a multi-layer folding and expanding zipper, which at least includes the zipper described in any one of the above embodiments one to eight.

[0313] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A luggage case folding zipper characterized by, The left side box shell, the right side box shell, the left side zipper cloth, the right side zipper cloth, the left side lining cloth, the right side lining cloth, the left side zipper cloth outer zipper teeth, the left side zipper cloth inner zipper teeth, the left side zipper cloth upper folding part, the left side zipper cloth middle folding part, the right side zipper cloth outer zipper teeth, the right side zipper cloth inner zipper teeth, the right side zipper cloth upper folding part, the right side zipper cloth middle folding part, the left side lining cloth zipper teeth, the right side lining cloth zipper teeth, wherein: The opening ends of the left side box shell and the right side box shell are oppositely arranged, and the openable opening is formed by the left side zipper cloth and the right side zipper cloth; The left side of the left side zipper cloth is arranged in an S-shaped detour at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper teeth, and the other end is provided with the left side zipper cloth inner zipper teeth; The left side of the left side zipper cloth is arranged in an S-shaped detour at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper teeth, and the other end is provided with the left side zipper cloth inner zipper teeth; The left side of the left side zipper cloth is arranged in an S-shaped detour at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper teeth, and the other end is provided with the left side zipper cloth inner zipper teeth; The left side of the left side zipper cloth is arranged in an S-shaped detour at the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper teeth, and the other end is provided with the left side zipper cloth inner zipper teeth; The right side of the right side zipper cloth is arranged in an anti-S-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper teeth, and the other end is provided with the right side zipper cloth inner zipper teeth; The right side of the right side zipper cloth is arranged in an anti-S-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper teeth, and the other end is provided with the right side zipper cloth inner zipper teeth; The right side of the right side zipper cloth is arranged in an anti-S-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper teeth, and the other end is provided with the right side zipper cloth inner zipper teeth; The right side of the right side zipper cloth is arranged in an anti-S-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper teeth, and the other end is provided with the right side zipper cloth inner zipper teeth; The right side of the right side zipper cloth is arranged in an anti-S-shaped detour at the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper teeth, and the other end is provided with the right side zipper cloth inner zipper teeth; 2. A luggage case folding zipper according to claim 1 wherein, The left side zipper cloth outer zipper teeth and the right side zipper cloth outer zipper teeth are arranged left and right correspondingly, and are used to fix the left side zipper cloth and the right side zipper cloth to each other, and then realize the opening and closing operation of the left side box shell and the right side box shell through the zipper head. It also includes a left side sewing fixing part and a right side sewing fixing part, wherein: The left side sewing fixing part vertically sews and fixes the left side box shell and the left side zipper cloth; 3. A luggage case folding zipper characterized by, The right side sewing fixing part vertically sews and fixes the right side box shell and the right side zipper cloth. The left side box shell, the right side box shell, the left side zipper cloth, the right side zipper cloth, the left side lining cloth, the right side lining cloth, the left side zipper cloth outer zipper teeth, the left side zipper cloth inner zipper teeth, the left side zipper cloth upper folding part, the left side zipper cloth middle folding part, the left side zipper cloth lower folding part, the right side zipper cloth outer zipper teeth, the right side zipper cloth inner zipper teeth, the right side zipper cloth upper folding part, the right side zipper cloth middle folding part, the right side zipper cloth lower folding part, wherein: The open ends of the left and right box shells are oppositely arranged, and the left and right zipper cloths form an openable opening; The left side of the left zipper cloth is arranged in a reverse arch shape at the end of the left box shell, one end of the left zipper cloth is provided with the left zipper cloth external zipper teeth, the other end is provided with the left zipper cloth internal zipper teeth, and the left zipper cloth external zipper teeth and the left zipper cloth internal zipper teeth are arranged in a corresponding manner; The upper folding part of the left zipper cloth is located above the end of the left box shell close to the right box shell; The middle folding part of the left zipper cloth is wrapped around the end of the left box shell close to the right box shell and the end of the left lining cloth inside the left box shell; The lower folding part of the left zipper cloth is located inside the left lining cloth; The right side of the right zipper cloth is arranged in an arch shape at the end of the right box shell, one end of the right zipper cloth is provided with the right zipper cloth external zipper teeth, the other end is provided with the right zipper cloth internal zipper teeth, and the right zipper cloth external zipper teeth and the right zipper cloth internal zipper teeth are arranged in a corresponding manner; The upper folding part of the right zipper cloth is located above the end of the right box shell close to the left box shell; The middle folding part of the right zipper cloth is wrapped around the end of the right box shell close to the left box shell and the end of the right lining cloth inside the right box shell; The lower folding part of the right zipper cloth is located inside the right lining cloth; The left and right zipper cloth external zipper teeth are arranged in a corresponding manner, and the left and right zipper cloth internal zipper teeth are arranged in a corresponding manner; The left and right zipper cloth external zipper teeth and the left and right zipper cloth internal zipper teeth simultaneously realize the double-layer opening and closing operation of the inside and outside of the left and right zipper cloths through a double-layer zipper head, form a double-layer anti-explosion zipper structure, and further realize the opening and closing of the left and right box shells.

4. A luggage item folding zipper according to claim 3, wherein, It also includes a left side sewing fixing part and a right side sewing fixing part, wherein: The left side sewing fixing part vertically sews and fixes the left box shell, the left lining cloth and the left zipper cloth; The right side sewing fixing part vertically sews and fixes the right box shell, the right lining cloth and the right zipper cloth.

5. A luggage case expansion zip fastener, characterised in that, It includes a left box shell, a right box shell, a left zipper cloth, a right zipper cloth, a middle zipper cloth, a left lining cloth, a right lining cloth, a left zipper cloth external zipper tooth, a left zipper cloth internal zipper tooth, a left zipper cloth upper folding part, a left zipper cloth middle folding part, a left zipper cloth lower folding part, a right zipper cloth external zipper tooth, a right zipper cloth internal zipper tooth, a right zipper cloth upper folding part, a right zipper cloth middle folding part, a right zipper cloth lower folding part, a right zipper cloth internal expansion part, a middle zipper cloth first side zipper tooth, a middle zipper cloth second side zipper tooth, and a middle sewing fixing part, wherein: The open ends of the left and right box shells are oppositely arranged, and the left and right zipper cloths form an openable opening; The left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. A luggage collapsible expanding zipper according to claim 5, wherein, ​ ​ The right side sewing fixing part vertically sews and fixes the right side box shell, the right side lining cloth and the right side zipper cloth.

7. A luggage case expansion zip fastener, characterised in that, It comprises a left side box shell, a right side box shell, a left side zipper cloth, a right side zipper cloth, a middle zipper cloth, a left side lining cloth, a right side lining cloth, a left side zipper cloth outer zipper tooth, a left side zipper cloth inner zipper tooth, a left side lining cloth zipper tooth, a left side zipper cloth upper folding part, a left side zipper cloth middle folding part, a right side zipper cloth outer zipper tooth, a right side zipper cloth inner zipper tooth, a right side zipper cloth upper folding part, a right side zipper cloth middle folding part, a right side zipper cloth lower folding part, a right side zipper cloth inner expansion part, a right side zipper cloth expansion folding part, a right side lining cloth zipper tooth, a middle zipper cloth first side zipper tooth, a middle zipper cloth second side zipper tooth, and a middle sewing fixing part, wherein: The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the left side zipper cloth and the middle zipper cloth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side zipper cloth inner zipper tooth; The left side of the left side zipper cloth is S-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper tooth, and the other end is provided with the left side The intermediate sewing fixing part fixes the middle part of the intermediate zipper cloth and the vertical right side zipper cloth expansion folding part; The right side inner lining cloth is provided with the right side inner lining cloth zipper tooth on the side close to the right side zipper cloth internal expansion part, the right side inner lining cloth zipper tooth is opposite to the right side zipper cloth internal zipper tooth and is located in the inside of the right side zipper cloth internal expansion part, and the right side inner lining cloth zipper tooth is connected through the zipper head, so that the right side inner lining cloth and the right side zipper cloth are fixed; The left side zipper cloth external zipper tooth and the intermediate zipper cloth first side zipper tooth are horizontally opposite, and the left side zipper cloth and the intermediate zipper cloth are opened and closed through a zipper head, so that the left side box shell and the right side box shell are opened and closed; The intermediate zipper cloth second side zipper tooth and the right side zipper cloth external zipper tooth are horizontally opposite, and the right side zipper cloth and the intermediate zipper cloth are opened and closed through a zipper head, and in the opened state of the zipper head, the right side box shell is expanded through the expansion of the right side zipper cloth internal expansion part.

8. The folding expansion zipper of luggage according to claim 7, wherein, The left side sewing fixing part and the right side sewing fixing part are further included, wherein: The left side sewing fixing part fixes the left side box shell and the left side zipper cloth vertically; The right side sewing fixing part fixes the right side box shell and the right side zipper cloth vertically.

9. A luggage case expansion zip fastener, characterised in that, The left side box shell, the right side box shell, the left side zipper cloth, the right side zipper cloth, the intermediate zipper cloth, the left side inner lining cloth, the right side inner lining cloth, the left side zipper cloth external zipper tooth, the left side zipper cloth internal zipper tooth, the left side zipper cloth upper folding part, the left side zipper cloth middle folding part, the left side zipper cloth lower folding part, the right side zipper cloth external zipper tooth, the right side zipper cloth internal zipper tooth, the right side zipper cloth upper folding part, the right side zipper cloth middle folding part, the right side zipper cloth lower folding part, the right side zipper cloth internal expansion part, the intermediate zipper cloth first side zipper tooth, the intermediate zipper cloth second side zipper tooth and the intermediate sewing fixing part are included, wherein: The opening ends of the left side box shell and the right side box shell are opposite, and the left side zipper cloth and the intermediate zipper cloth form an openable opening; The left side of the left side zipper cloth is in a reverse arch type and is arranged in the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth external zipper tooth, and the other end is provided with the left side zipper cloth internal zipper tooth, and the left side zipper cloth external zipper tooth and the left side zipper cloth internal zipper tooth are vertically opposite; The left side zipper cloth upper folding part is located above the end of the left side box shell close to the right side box shell; The left side zipper cloth middle folding part is wrapped around the end of the left side box shell close to the right side box shell and the end of the left side inner lining cloth located in the inside of the left side box shell; The left side zipper cloth lower folding part is located in the inside of the left side inner lining cloth; The right side of the right side zipper cloth is in an arch type and is arranged in the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth external zipper tooth, and the other end is provided with the right side zipper cloth internal zipper tooth; The right side zipper cloth upper folding part is located above the end of the right side box shell close to the left side box shell; The right side zipper cloth middle folding part wraps the end of the right side box shell close to the left side box shell and the end of the right side inner lining cloth inside the right side box shell at the same time; The right side zipper cloth lower folding part is located inside the right side inner lining cloth; The right side zipper cloth internal expansion part is arranged in a V-shaped structure below the right side zipper cloth, one end is connected to the right side zipper cloth lower folding part, and the other end is folded upwards from the lower part and then connected to the right side zipper cloth internal zipper tooth; The first side and the second side of the middle zipper cloth are arranged at an acute angle, one end is provided with the first side zipper tooth of the middle zipper cloth, and the other end is provided with the second side zipper tooth of the middle zipper cloth; The first side zipper tooth of the middle zipper cloth and the second side zipper tooth of the middle zipper cloth are arranged in a one-up-and-one-down correspondence; The first side zipper tooth of the middle zipper cloth and the external zipper tooth of the left side zipper cloth are arranged in a horizontal correspondence; The second side zipper tooth of the middle zipper cloth and the internal zipper tooth of the left side zipper cloth are arranged in a horizontal correspondence; The middle sewing fixing part horizontally sews and fixes the middle zipper cloth and the internal expansion part of the right side zipper cloth close to one end of the internal zipper tooth of the right side zipper cloth; The external zipper tooth of the left side zipper cloth and the first side zipper tooth of the middle zipper cloth, and the internal zipper tooth of the left side zipper cloth and the second side zipper tooth of the middle zipper cloth simultaneously realize the double-layer opening and closing operation of the internal and external parts of the left side zipper cloth and the middle zipper cloth through a double-layer zipper head, form a double-layer anti-explosion zipper structure, and then realize the opening and closing of the left side box shell and the right side box shell; The internal zipper tooth of the right side zipper cloth and the external zipper tooth of the right side zipper cloth are arranged in a horizontal correspondence, and the internal and external parts of the right side zipper cloth are realized through a zipper head, and in the opened state of the zipper head, the expansion of the right side box shell is realized through the stretching of the internal expansion part of the right side zipper cloth.

10. The folding expansion zipper of luggage according to claim 9, wherein, Further comprising a left side sewing fixing part and a right side sewing fixing part, wherein: The left side sewing fixing part vertically sews and fixes the left side box shell, the left side inner lining cloth, and the left side zipper cloth; The right side sewing fixing part vertically sews and fixes the right side box shell, the right side inner lining cloth, and the right side zipper cloth.

11. A luggage case expansion zip fastener, characterised in that, The left side box shell, the right side box shell, the left side zipper cloth, the right side zipper cloth, the middle zipper cloth, the left side inner lining cloth, the right side inner lining cloth, the external zipper tooth of the left side zipper cloth, the internal zipper tooth of the left side zipper cloth, the left side inner lining cloth zipper tooth, the left side zipper cloth upper folding part, the left side zipper cloth middle folding part, the right side zipper cloth external zipper tooth, the right side zipper cloth internal zipper tooth, the right side zipper cloth upper folding part, the right side zipper cloth middle folding part, the right side zipper cloth lower folding part, the right side zipper cloth internal expansion part, the right side inner lining cloth zipper tooth, the first side zipper tooth of the middle zipper cloth, the second side zipper tooth of the middle zipper cloth, and the middle sewing fixing part, wherein: The opening ends of the left side box shell and the right side box shell are arranged oppositely, and an openable opening is formed through the left side zipper cloth and the middle zipper cloth; The left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of the left side of ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 12. A luggage collapsible expanding zipper according to claim 11, characterized in that, ​ ​ ​ 13. A luggage case expansion zip fastener, characterised in that, The left side box shell, the right side box shell, the left side zipper cloth, the right side zipper cloth, the first intermediate zipper cloth, the second intermediate zipper cloth, the left side lining cloth, the right side lining cloth, the left side zipper cloth outer zipper teeth, the left side zipper cloth inner zipper teeth, the left side zipper cloth upper folding part, the left side zipper cloth middle folding part, the left side zipper cloth lower folding part, the left side zipper cloth inner expansion part, the right side zipper cloth outer zipper teeth, the right side zipper cloth inner zipper teeth, the right side zipper cloth upper folding part, the right side zipper cloth middle folding part, the right side zipper cloth lower folding part, the right side zipper cloth inner expansion part, the first intermediate zipper cloth first side zipper teeth, the first intermediate zipper cloth second side zipper teeth, the first intermediate sewing fixing part, the second intermediate zipper cloth first side zipper teeth, the second intermediate zipper cloth second side zipper teeth, the second intermediate sewing fixing part, wherein: The opening ends of the left side box shell and the right side box shell are oppositely arranged, and an openable opening is formed by the first intermediate zipper cloth and the second intermediate zipper cloth; The left side of the left side zipper cloth is reversely arc-shaped and circumvents the end of the left side box shell, one end of the left side zipper cloth is provided with the left side zipper cloth outer zipper teeth, and the other end is provided with the left side zipper cloth inner zipper teeth; The left side zipper cloth upper folding part is located above the end of the left side box shell close to the right side box shell; The left side zipper cloth middle folding part is wrapped around the end of the left side box shell close to the right side box shell and the end of the left side lining cloth inside the left side box shell; The left side zipper cloth lower folding part is located inside the left side lining cloth; The left side zipper cloth inner expansion part is V-shaped and arranged below the first intermediate zipper cloth and the left side zipper cloth, one end of the left side zipper cloth inner expansion part is connected with the left side zipper cloth lower folding part, and the other end is connected with the left side zipper cloth inner zipper teeth; The right side of the right side zipper cloth is arc-shaped and circumvents the end of the right side box shell, one end of the right side zipper cloth is provided with the right side zipper cloth outer zipper teeth, and the other end is provided with the right side zipper cloth inner zipper teeth; The right side zipper cloth upper folding part is located above the end of the right side box shell close to the left side box shell; The right side zipper cloth middle folding part is wrapped around the end of the right side box shell close to the left side box shell and the end of the right side lining cloth inside the right side box shell; The right side zipper cloth lower folding part is located inside the right side lining cloth; The right side zipper cloth inner expansion part is V-shaped and arranged below the second intermediate zipper cloth and the right side zipper cloth, one end of the right side zipper cloth inner expansion part is connected with the right side zipper cloth lower folding part, and the other end is connected with the right side zipper cloth inner zipper teeth; The first intermediate zipper cloth is horizontally arranged, one end of the first intermediate zipper cloth is provided with the first intermediate zipper cloth first side zipper teeth, and the other end is provided with the first intermediate zipper cloth second side zipper teeth; The first intermediate sewing fixing part vertically sews and fixes the middle part of the first intermediate zipper cloth and the right end of the left side zipper cloth inner expansion part. The first intermediate zipper cloth first side zipper tooth is horizontally arranged corresponding to the left side zipper cloth external zipper tooth, and the opening and closing operation of the left side zipper cloth and the first intermediate zipper cloth is realized by a zipper head, and in the open state of the zipper head, the expansion of the left side box shell is realized by the expansion of the left side zipper cloth internal expansion part; The second intermediate zipper cloth is horizontally arranged, and one end is provided with the second intermediate zipper cloth first side zipper tooth, and the other end is provided with the second intermediate zipper cloth second side zipper tooth; The second intermediate sewing fixing part vertically sews and fixes the middle part of the second intermediate zipper cloth and the left end of the right side zipper cloth internal expansion part; The second intermediate zipper cloth second side zipper tooth is horizontally arranged corresponding to the right side zipper cloth external zipper tooth, and the opening and closing operation of the right side zipper cloth and the second intermediate zipper cloth is realized by a zipper head, and in the open state of the zipper head, the expansion of the right side box shell is realized by the expansion of the right side zipper cloth internal expansion part; The first intermediate zipper cloth and the second intermediate zipper cloth are horizontally arranged between the upper surfaces of the left side zipper cloth and the right side zipper cloth; The first intermediate zipper cloth second side zipper tooth and the second intermediate zipper cloth first side zipper tooth are horizontally arranged corresponding to each other, and the left side zipper cloth internal zipper tooth and the right side zipper cloth internal zipper tooth are horizontally arranged corresponding to each other; The first intermediate zipper cloth second side zipper tooth and the left side zipper cloth internal zipper tooth are arranged corresponding to each other in the up-down direction, and the second intermediate zipper cloth first side zipper tooth and the right side zipper cloth internal zipper tooth are arranged corresponding to each other in the up-down direction; The first intermediate zipper cloth second side zipper tooth and the second intermediate zipper cloth first side zipper tooth realize the opening and closing operation of the first intermediate zipper cloth and the second intermediate zipper cloth by the upper part of a double-layer zipper head, and the left side zipper cloth internal zipper tooth and the right side zipper cloth internal zipper tooth realize the opening and closing operation of the left side zipper cloth and the right side zipper cloth by the lower part of a double-layer zipper head at the same time, forming a double-layer anti-explosion zipper structure, and further realizing the overall opening and closing of the left side box shell and the right side box shell.

14. The folding expansion zipper of luggage according to claim 13, wherein, Further comprising a left side sewing fixing part and a right side sewing fixing part, wherein: The left side sewing fixing part vertically sews and fixes the left side box shell, the left side lining cloth and the left side zipper cloth; The right side sewing fixing part vertically sews and fixes the right side box shell, the right side lining cloth and the right side zipper cloth.

15. A luggage case having a multi-layered, accordion expanding zipper, characterized in that, At least comprising the zipper as claimed in any one of claims 1-14.

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