Clamping structure for middle frame section bar and case shell of luggage case

Abstract

The utility model discloses a luggage case middle frame profile and case shell clamping structure, which comprises a first case shell, a second case shell, a first frame, a first frame embedding groove, a second frame and a second frame embedding boss, the first frame is arranged at the opening part of the first case shell, the opening parts of the first frame and the first case shell are respectively provided with a buckling structure and are clamped and fixed, and the second frame is arranged at the opening part of the second case shell. The buckling structure of the first frame is engaged with the buckling structure of the opening part of the first box shell; the second frame is arranged at the opening part of the second box shell, buckling structures are arranged at the opening parts of the second frame and the second box shell and are clamped and fixed, and the buckling structures of the second frame and the buckling structures of the opening part of the second box shell are meshed with each other; the first frame embedding groove is formed in the middle of the first frame, and an opening of the first frame embedding groove faces the left side; the second frame embedding boss is arranged in the middle of the second frame and faces the right side; and the first frame embedding groove and the second frame embedding boss are embedded with each other, so that the first frame and the second frame are buckled with each other to form a closed box body internal space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of luggage, especially to a luggage middle frame section bar and box shell clamping structure. BACKGROUND

[0002] In the currently commonly used luggage, a set of frame with concave-convex fitting is arranged on the opening edge of the box shell on the front and back sides, which aims to increase the use strength of the luggage and improve the closure matching degree and tightness of the two box shells, facilitating the use of the user.

[0003] The prior art adopts rivet riveting fixation, and the frame after bending is fixed to the opening of the box shell by rivets. The fixation mode principle is simple, and is the most widely used in the industry at present. However, in actual production and use, it is inconvenient to operate, the production efficiency is low, and rivet riveting needs a through hole of the rivet, so multiple through hole fixation points must be set, resulting in more steps for binding and more pre-processes. When the overlapping hole is arranged at the splicing overlapping position, misalignment often occurs and needs to be corrected manually, which is not easy to operate. Meanwhile, the rivet riveting needs an operator to hold the box body to operate the rivet operation machine, and when the box body is large, the operation convenience is very low, the worker is easily tired, and the production efficiency and safety are affected. Because the number of rivets is large, the production efficiency is low, and the production cost of the product is increased.

[0004] The structure between the two rivets is weak and prone to gaps. Even if the rivets are arranged densely, there will always be a certain distance between the adjacent rivets, and the distance is not completely fixed, the structure strength is low, and the overall fixation strength is not ideal. When local collision deformation occurs, the frame and the box shell are easily separated to form a gap, which affects the appearance and brings a bad product experience to the user.

[0005] The exposed rivets affect the appearance of the luggage. The rivets are exposed on the outside of the frame, and the number is large, which affects the overall appearance of the luggage. UTILITY MODEL CONTENTS

[0006] In order to overcome the deficiencies in the prior art, the utility model provides a luggage middle frame section bar and box shell clamping structure. The use of the structure can effectively increase the assembly efficiency of the frame and the box shell, improve the connection stability between the frame and the box shell, and improve the overall appearance of the luggage.

[0007] In order to achieve the above utility model purposes and solve the technical problems, the technical scheme adopted is as follows:

[0008] A luggage case middle frame section and case shell clamping structure, comprising a first case shell, a second case shell, a first frame and a first frame embedded groove, a second frame and a second frame embedded boss, wherein:

[0009] The first frame is arranged at the mouth of the first case shell, and the first frame and the mouth of the first case shell are provided with buckling structures, the buckling structures of the first frame and the mouth of the first case shell are clamped and fixed, and the buckling structures of the first frame and the mouth of the first case shell are mutually engaged;

[0010] The first case shell comprises a first case shell body, a first case shell internal reinforcing part, a first case shell surface layer extension part and a first case shell internal connecting rib, wherein:

[0011] The first case shell internal reinforcing part is fixedly connected to the left end of the first case shell body;

[0012] The first case shell surface layer extension part is located above the first case shell internal reinforcing part and extends obliquely leftward from the connection between the first case shell internal reinforcing part and the first case shell body;

[0013] The first case shell internal connecting rib is vertically connected between the first case shell internal reinforcing part and the first case shell surface layer extension part, and forms a first case shell internal reinforcing cavity with an opening to the left together with the first case shell internal reinforcing part and the first case shell surface layer extension part;

[0014] The second frame is arranged at the mouth of the second case shell, and the second frame and the mouth of the second case shell are provided with buckling structures, the buckling structures of the second frame and the mouth of the second case shell are clamped and fixed, and the buckling structures of the second frame and the mouth of the second case shell are mutually engaged;

[0015] The second case shell comprises a second case shell body, a second case shell internal reinforcing part, a second case shell surface layer extension part and a second case shell internal connecting rib, wherein:

[0016] The second case shell internal reinforcing part is fixedly connected to the right end of the second case shell body;

[0017] The second case shell surface layer extension part is located above the second case shell internal reinforcing part and extends obliquely rightward from the connection between the second case shell internal reinforcing part and the second case shell body;

[0018] The second case shell internal connecting rib is vertically connected between the second case shell internal reinforcing part and the second case shell surface layer extension part, and forms a second case shell internal reinforcing cavity with an opening to the right together with the second case shell internal reinforcing part and the second case shell surface layer extension part;

[0019] The first frame embedding groove is recessed in the middle of the first frame, and its opening faces the left side, used for mutual embedding with the second frame;

[0020] The second frame embedding boss is protruded in the middle of the second frame, and its boss faces the right side, used for mutual embedding with the first frame;

[0021] The first frame embedding groove and the second frame embedding boss are mutually embedded so that the first frame and the second frame are mutually buckled to form a closed box interior space.

[0022] Further, the first frame includes a first frame right side extension, a first frame inner lining zipper installation groove, a first frame steel wire installation groove, a first frame left side support rib, a first frame top reverse buckle part, a first frame clamping assembly groove, and a first frame right side convex rib, wherein:

[0023] The first frame right side extension is arranged on the right side of the first frame, and is in an inclined state of being higher on the left side and lower on the right side, used for guiding the first box shell;

[0024] The first frame inner lining zipper installation groove is arranged in the middle of the first frame, and its opening faces downward, used for accommodating the internal lining;

[0025] The first frame steel wire installation groove is arranged below the first frame inner lining zipper installation groove, and its opening faces downward and is in communication with the first frame inner lining zipper installation groove, used for accommodating the lining fixing steel wire, and further connecting the internal lining fixing part wrapped around the periphery of the lining fixing steel wire and the first frame;

[0026] The first frame left side support rib is arranged below the left side of the first frame, used for supporting the second frame;

[0027] The first frame top reverse buckle part is transversely arranged on the top of the first frame;

[0028] The first frame clamping assembly groove is arranged on the upper part of the first frame, and its opening faces the right side, used for clamping the first box shell;

[0029] The first frame right side convex rib is arranged on the right side of the first frame and above the first frame right side extension, used for guiding the first box shell.

[0030] Further, the first box shell further includes a first box shell end reverse buckle part, wherein:

[0031] The first box shell end reverse buckle part is fixedly connected to the left end of the first box shell surface layer extension part and extends to the right side, used for buckling with the first frame top reverse buckle part when the first box shell is clamped into the first frame.

[0032] Further, when the first case end inverted portion is inserted into the first frame clamping assembly slot, the first frame right side protruding rib is embedded into the first case internal reinforcing cavity and abuts against the first case internal connecting rib, so as to prevent the first case from loosening from the first frame.

[0033] Further, the first case further comprises a first case clamping strip and a first case fastener, wherein:

[0034] The vertical part of the first case clamping strip is in abutment with the left end of the first case surface layer extension, and the horizontal part of the first case clamping strip is in abutment with the outer surface of the first case surface layer extension, and the first case clamping strip and the first case surface layer extension are fixedly connected through the first case fastener;

[0035] The right end of the first case clamping strip is upwardly inclined, so as to be buckled with the first frame top inverted portion when the first case is clamped into the first frame.

[0036] Further, the second frame comprises a second frame left side extension, a second frame inner lining zipper installation slot, a second frame steel wire installation slot, a second frame top inverted portion, a second frame clamping assembly slot and a second frame left side protruding rib, wherein:

[0037] The second frame left side extension is arranged on the left side of the second frame and is in an inclined state with the right side being higher than the left side, so as to guide the second case;

[0038] The second frame inner lining zipper installation slot is arranged in the middle of the second frame, and the opening thereof faces downward, so as to accommodate the internal lining.

[0039] The second frame steel wire installation slot is arranged below the second frame inner lining zipper installation slot, and the opening thereof faces downward and is in communication with the second frame inner lining zipper installation slot, so as to accommodate the internal lining fixing steel wire, and the internal lining fixing portion wrapped around the periphery of the internal lining fixing steel wire is connected with the second frame.

[0040] The second frame top inverted portion is transversely arranged on the top of the second frame.

[0041] The second frame clamping assembly slot is arranged on the upper part of the second frame, and the opening thereof faces the left side, so as to clamp the second case.

[0042] The second frame left side protruding rib is arranged on the left side of the second frame and is above the second frame left side extension, so as to guide the second case.

[0043] Further, the second case further comprises a second case end inverted portion, wherein:

[0044] The second box shell end undercut part is fixedly connected to the right end of the second box shell surface layer extension part and extends to the left, and is used for buckling with the second frame top undercut part when the second box shell is clamped into the second frame.

[0045] Further, when the second box shell end undercut part is clamped into the second frame clamping assembly groove, the second frame left side protruding rib is embedded into the second box shell internal reinforcing cavity and abuts against the second box shell internal connecting rib, which is used for preventing the second box shell from being loose with the second frame.

[0046] Further, the second box shell further comprises a second box shell clamping strip and a second box shell fastener, wherein:

[0047] The second box shell clamping strip is in L-shaped structure, the vertical part of which abuts against the right end of the second box shell surface layer extension part, and the horizontal part of which abuts against the outer surface of the second box shell surface layer extension part, and the second box shell clamping strip and the second box shell surface layer extension part are fixedly connected through the second box shell fastener.

[0048] The left end of the second box shell clamping strip is inclined upward, and is used for buckling with the second frame top undercut part when the second box shell is clamped into the second frame.

[0049] Preferably, the length of the first box shell internal reinforcing part is shorter than the length of the first box shell surface layer extension part, and / or the length of the second box shell internal reinforcing part is shorter than the length of the second box shell surface layer extension part.

[0050] Compared with the prior art, the luggage box middle frame profile and box shell clamping structure has the following advantages and positive effects:

[0051] 1. The luggage box middle frame profile and box shell clamping structure are tightly matched with the undercut of the box shell after installation, effectively ensure the connection stability between the frame and the box shell, do not need to be linked through rivets or other ways, and improve the overall appearance and assembly efficiency of the travel box.

[0052] 2. The luggage box middle frame profile and box shell clamping structure are reasonable in structure, ingenious in design, convenient to operate, high in production efficiency, strong in stability and low in manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art. In the drawings:

[0054] Figure 1 is a structure schematic view of the luggage when the luggage adopts a nail-free frame in the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0055] Figure 2 is a cross-sectional structure schematic view of the luggage when the luggage adopts a nail-free frame in the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0056] Figure 3 is a first schematic view of the overall structure of the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0057] Figure 4 is a second schematic view of the overall structure of the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0058] Figure 5 is an exploded schematic view of the overall structure of the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0059] Figure 6 is a first schematic view of the first luggage shell in the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0060] Figure 7 is a second schematic view of the first luggage shell in the luggage middle frame profile and the luggage shell clamping structure of the present application;

[0061] Figure 8 is a schematic view of the clamping step of the first luggage shell and the first frame in the luggage middle frame profile and the luggage shell clamping structure of the present application.

[0062]

Main symbol explanation

[0063] 1-first luggage shell; 11-first luggage shell body; 12-first luggage shell internal reinforcing part; 13-first luggage shell surface layer extension part; 14-first luggage shell internal connecting rib; 15-first luggage shell end part reverse buckle part; 16-first luggage shell clamping strip; 17-first luggage shell fastener;

[0064] 2-second luggage shell; 21-second luggage shell body; 22-second luggage shell internal reinforcing part; 23-second luggage shell surface layer extension part; 24-second luggage shell internal connecting rib; 25-second luggage shell end part reverse buckle part; 26-second luggage shell clamping strip; 27-second luggage shell fastener;

[0065] 3 - first frame; 31 - first frame fitting recess; 32 - first frame right side extension; 33 - first frame inner lining zipper mounting groove; 34 - first frame steel wire mounting groove; 35 - first frame top reverse buckle part; 36 - first frame clamping assembly groove; 37 - first frame right side convex rib; 38 - first frame left side support rib;

[0066] 4 - second frame; 41 - second frame fitting boss; 42 - second frame left side extension; 43 - second frame inner lining zipper mounting groove; 44 - second frame steel wire mounting groove; 45 - second frame top reverse buckle part; 46 - second frame clamping assembly groove; 47 - second frame left side convex rib;

[0067] 5 - inner lining;

[0068] 6 - inner lining fixing steel wire;

[0069] 7 - inner lining fixing part. DETAILED DESCRIPTION

[0070] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only some 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 scope of protection of the present application.

[0071] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting 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.

[0072] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication 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.

[0073] As Figures 1-8As shown, the embodiment discloses a luggage middle frame profile and shell clamping structure, which comprises a first shell 1, a second shell 2, a first frame 3 and a first frame embedded groove 31, a second frame 4 and a second frame embedded boss 41, wherein:

[0074] The first frame 3 is arranged at the mouth of the first shell 1, and the first frame 3 and the mouth of the first shell 1 are both provided with buckling structures, the buckling structures of the first frame 3 and the mouth of the first shell 1 are clamped and fixed, and the buckling structures of the first frame 3 and the mouth of the first shell 1 are mutually engaged;

[0075] The first shell 1 comprises a first shell body 11, a first shell internal reinforcing part 12, a first shell surface layer extension part 13 and a first shell internal connecting rib 14, wherein:

[0076] The first shell internal reinforcing part 12 is fixedly connected to the left end of the first shell body 11;

[0077] The first shell surface layer extension part 13 is located above the first shell internal reinforcing part 12 and extends obliquely leftwards from the connection between the first shell internal reinforcing part 12 and the first shell body 11;

[0078] The first shell internal connecting rib 14 is vertically connected between the first shell internal reinforcing part 12 and the first shell surface layer extension part 13, and forms a first shell internal reinforcing cavity with an opening to the left together with the first shell internal reinforcing part 12 and the first shell surface layer extension part 13;

[0079] The second frame 4 is arranged at the mouth of the second shell 2, and the second frame 4 and the mouth of the second shell 2 are both provided with buckling structures, the buckling structures of the second frame 4 and the mouth of the second shell 2 are clamped and fixed, and the buckling structures of the second frame 4 and the mouth of the second shell 2 are mutually engaged;

[0080] The second shell 2 comprises a second shell body 21, a second shell internal reinforcing part 22, a second shell surface layer extension part 23 and a second shell internal connecting rib 24, wherein:

[0081] The second shell internal reinforcing part 22 is fixedly connected to the right end of the second shell body 21;

[0082] The second shell surface layer extension part 23 is located above the second shell internal reinforcing part 22 and extends obliquely rightwards from the connection between the second shell internal reinforcing part 22 and the second shell body 21;

[0083] The second box shell interior connecting rib 24 is vertically connected between the second box shell interior reinforcing part 22 and the second box shell surface layer extension part 23, and forms a second box shell interior reinforcing cavity with the second box shell interior reinforcing part 22 and the second box shell surface layer extension part 23 surrounding an opening to the right;

[0084] The first frame fitting recess 31 is recessed in the middle of the first frame 3, and its opening faces the left side, for mutual fitting with the second frame 4;

[0085] The second frame fitting boss 41 is protruded in the middle of the second frame 4, and its boss faces the right side, for mutual fitting with the first frame 3;

[0086] The first frame fitting recess 31 and the second frame fitting boss 41 are mutually fitted so that the first frame 3 and the second frame 4 are mutually buckled to form a closed box interior space.

[0087] Reference Figures 3-5 The first frame 3 includes a first frame right side extension part 32, a first frame inner lining zipper installation groove 33, a first frame steel wire installation groove 34, a first frame left side supporting rib 38, a first frame top reverse buckle part 35, a first frame clamping assembly groove 36, and a first frame right side protruding rib 37, wherein:

[0088] The first frame right side extension part 32 is arranged on the right side of the first frame 3, and is in an inclined state of being higher on the left side and lower on the right side, for guiding the first box shell 1;

[0089] The first frame inner lining zipper installation groove 33 is arranged in the middle of the first frame 3, and its opening faces downward, for accommodating the internal lining 5;

[0090] The first frame steel wire installation groove 34 is arranged below the first frame inner lining zipper installation groove 33, and its opening faces downward and is in communication with the first frame inner lining zipper installation groove 33, for accommodating the lining fixing steel wire 6, and further connecting the internal lining fixing part 7 wrapped around the periphery of the lining fixing steel wire 6 and the first frame 3;

[0091] The first frame left side supporting rib 38 is arranged below the left side of the first frame 3, for supporting the second frame 4;

[0092] The first frame top reverse buckle part 35 is transversely arranged on the top of the first frame 3;

[0093] The first frame clamping assembly groove 36 is arranged on the upper part of the first frame 3, and its opening faces the right side, for clamping the first box shell 1;

[0094] The first frame right side protruding rib 37 is arranged on the right side of the first frame 3 and above the first frame right side extension 32, and is used for guiding the first case 1.

[0095] In one embodiment, as shown in Figure 6 , the first case 1 further comprises a first case end undercut portion 15, wherein:

[0096] The first case end undercut portion 15 is fixedly connected to the left end of the first case surface layer extension 13 and extends to the right side, and is used for buckling with the first frame top undercut portion 35 when the first case 1 is clamped into the first frame 3.

[0097] Further, when the first case end undercut portion 15 is clamped into the first frame clamping assembly groove 36, the first frame right side protruding rib 37 is embedded in the first case internal reinforcing cavity and abuts against the first case internal connecting rib 14, which is used for preventing the first case 1 from being loose when connected with the first frame 3.

[0098] In another embodiment, as shown in Figure 7 , the first case 1 further comprises a first case clamping strip 16 and a first case fastener 17, wherein:

[0099] The first case clamping strip 16 has an L-shaped structure, the vertical part of which abuts against the left end of the first case surface layer extension 13, and the horizontal part of which abuts against the outer surface of the first case surface layer extension 13, and the first case clamping strip 16 and the first case surface layer extension 13 are fixedly connected through the first case fastener 17.

[0100] The right end of the first case clamping strip 16 is inclined upward, and is used for buckling with the first frame top undercut portion 35 when the first case 1 is clamped into the first frame 3.

[0101] Preferably, the first case body 11, the first case internal reinforcing portion 12, and the first case surface layer extension 13 are integrally formed or stamp formed, as shown in Figure 6 , and the first case body 11, the first case internal reinforcing portion 12, the first case surface layer extension 13, and the first case end undercut portion 15 are integrally formed or stamp formed, as shown in Figure 7 , which effectively increases the service life of the first case 1.

[0102] Further referring to Figures 3-5 , the second frame 4 comprises a second frame left side extension 42, a second frame internal lining zipper installation groove 43, a second frame steel wire installation groove 44, a second frame top undercut portion 45, a second frame clamping assembly groove 46, and a second frame left side protruding rib 47, wherein:

[0103] The second frame left extension 42 is arranged on the left side of the second frame 4 and is in an inclined state with the right side higher than the left side, and is used for guiding the second box shell 2;

[0104] The second frame inner lining zip fastener installation groove 43 is arranged in the middle of the second frame 4 and has an opening facing downward, and is used for accommodating the inner lining 5;

[0105] The second frame steel wire installation groove 44 is arranged below the second frame inner lining zip fastener installation groove 43 and has an opening facing downward and is in communication with the second frame inner lining zip fastener installation groove 43, and is used for accommodating the inner lining fixing steel wire 6, and further connecting the inner lining fixing part 7 wrapped around the periphery of the inner lining fixing steel wire 6 and the second frame 4;

[0106] The second frame top reverse buckle part 45 is arranged horizontally on the top of the second frame 4;

[0107] The second frame clamping assembly groove 46 is arranged on the upper part of the second frame 4 and has an opening facing the left side, and is used for clamping the second box shell 2;

[0108] The second frame left side protruding rib 47 is arranged on the left side of the second frame 4 and is above the second frame left extension 42, and is used for guiding the second box shell 2.

[0109] In an embodiment, as shown in Figure 6 , the second box shell 2 further comprises a second box shell end reverse buckle part 25, wherein:

[0110] The second box shell end reverse buckle part 25 is fixedly connected to the right end of the second box shell surface layer extension 23 and extends to the left side, and is used for buckling with the second frame top reverse buckle part 45 when the second box shell 2 is clamped into the second frame 4.

[0111] Further, when the second box shell end reverse buckle part 25 is clamped into the second frame clamping assembly groove 46, the second frame left side protruding rib 47 is embedded in the second box shell internal reinforcing cavity and abuts against the second box shell internal connecting rib 24, and is used for preventing the second box shell 2 from being loose from the second frame 4.

[0112] In another embodiment, as shown in Figure 7 , the second box shell 2 further comprises a second box shell clamping strip 26 and a second box shell fastener 27, wherein:

[0113] The second box shell clamping strip 26 has an L-shaped structure, the vertical part of which abuts against the right end of the second box shell surface layer extension 23, and the horizontal part of which abuts against the outer surface of the second box shell surface layer extension 23, and the second box shell clamping strip 26 and the second box shell surface layer extension 23 are fixedly connected through the second box shell fastener 27.

[0114] The left end of the second box shell clamping strip 26 is inclined upward, used for clamping the second box shell 2 with the second frame top reverse buckle part 45 when the second box shell 2 is clamped into the second frame 4.

[0115] Preferably, the second box shell body 21, the second box shell internal reinforcing part 22 and the second box shell surface layer extension part 23 are integrally formed or stamp formed, as shown in Figure 6 ; or, the second box shell body 21, the second box shell internal reinforcing part 22, the second box shell surface layer extension part 23 and the second box shell end reverse buckle part 25 are integrally formed or stamp formed, as shown in Figure 7 , all of which effectively increase the service life of the second box shell 2.

[0116] Referring to Figures 3-8 , the length of the first box shell internal reinforcing part 12 is shorter than the length of the first box shell surface layer extension part 13; and / or, the length of the second box shell internal reinforcing part 22 is shorter than the length of the second box shell surface layer extension part 23.

[0117] Specific working principle:

[0118] As shown in Figure 8 , taking the first box shell 1 and the first frame 3 as an example, the first box shell 1 is inserted into the first frame 3 along the arrow direction to the left, and a little force is needed to insert the first box shell 1 into the first frame 3. The first box shell end reverse buckle part 15 (or the first box shell clamping strip 16) and the first box shell surface layer extension part 13 first move along the first frame right side protruding rib 37 to the first frame clamping assembly slot 36, and the first box shell internal reinforcing part 12 simultaneously moves to the left along the first frame right side extension part 32, so that the first frame top reverse buckle part 35 is lifted up by the first box shell end reverse buckle part 15 (or the first box shell clamping strip 16). After the first box shell end reverse buckle part 15 (or the first box shell clamping strip 16) and the first box shell surface layer extension part 13 pass through the right side entrance of the first frame clamping assembly slot 36 in turn, the first box shell end reverse buckle part 15 (or the first box shell clamping strip 16) abuts against the inner side of the first frame top reverse buckle part 35, at the same time, the first frame right side protruding rib 37 is inserted into the first box shell internal reinforcing cavity with the opening to the left, and abuts against the left side of the first box shell internal connecting rib 14, forming a mutual clamping state. At this time, the first box shell 1 is clamped and fixed in the first frame clamping assembly slot 36 and cannot be taken out.

[0119] Similarly, taking the second case shell 2 and the second frame 4 as an example, the second case shell 2 is inserted into the second frame 4 in the arrow direction to the right, and a little force is needed to insert the second case shell 2 into the second frame 4. The second case shell end inverted portion 25 (or the second case shell clamping strip 26) and the second case shell surface layer extension portion 23 first move along the second frame left side protruding rib 47 to the second frame clamping assembly groove 46, and the second case shell internal reinforcing portion 22 simultaneously moves to the right along the second frame left side extension portion 42, so that the second frame top inverted portion 45 is lifted up by the second case shell end inverted portion 25 (or the second case shell clamping strip 26), and the second case shell end inverted portion 25 (or the second case shell clamping strip 26) and the second case shell surface layer extension portion 23 pass through the left side entrance of the second frame clamping assembly groove 46 in sequence, the second case shell end inverted portion 25 (or the second case shell clamping strip 26) abuts against the inner side of the second frame top inverted portion 45, at the same time, the second frame left side protruding rib 47 is inserted into the second case shell internal reinforcing cavity opening to the right, and abuts against the right side of the second case shell internal connecting rib 24, forming a mutual clamping state, at this time, the second case shell 2 is clamped and fixed in the second frame clamping assembly groove 46 and cannot be taken out.

[0120] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A snap-fit ​​structure for the frame profile and shell of a suitcase, characterized in that, It includes a first housing, a second housing, a first frame and a first frame fitting groove, a second frame and a second frame fitting boss, wherein: The first frame is located at the opening of the first box shell. Both the first frame and the opening of the first box shell are provided with a fastening structure. The first frame is snapped and fixed to the fastening structure at the opening of the first box shell. The fastening structure of the first frame and the fastening structure at the opening of the first box shell engage with each other. The first shell includes a first shell body, an internal reinforcing portion of the first shell, a surface extension portion of the first shell, and internal connecting ribs of the first shell, wherein: The internal reinforcement of the first housing is fixedly connected to the left end of the first housing body; The first shell surface extension is located above the first shell internal reinforcement and extends obliquely to the left from the connection between the first shell internal reinforcement and the first shell body; The first box shell internal connecting rib is vertically connected between the first box shell internal reinforcement part and the first box shell surface extension part, and together with the first box shell internal reinforcement part and the first box shell surface extension part, they form a first box shell internal reinforcement cavity with an opening to the left. The second frame is located at the opening of the second box shell. Both the second frame and the opening of the second box shell are provided with a fastening structure. The second frame is snapped and fixed to the fastening structure at the opening of the second box shell. The fastening structure of the second frame and the fastening structure at the opening of the second box shell engage with each other. The second shell includes a second shell body, an internal reinforcing part of the second shell, a surface extension of the second shell, and internal connecting ribs of the second shell, wherein: The internal reinforcement of the second housing is fixedly connected to the right end of the second housing body; The second shell surface extension is located above the second shell internal reinforcement and extends obliquely to the right from the connection between the second shell internal reinforcement and the second shell body; The internal connecting rib of the second box shell is vertically connected between the internal reinforcing part of the second box shell and the surface extension part of the second box shell, and together with the internal reinforcing part of the second box shell and the surface extension part of the second box shell, they form an internal reinforcing cavity of the second box shell with an opening to the right. The first frame fitting groove is recessed in the middle of the first frame, and its opening faces to the left, for fitting with the second frame; The second frame fitting boss protrudes from the middle of the second frame, and its boss faces to the right, for fitting with the first frame; The first frame fitting groove and the second frame fitting boss fit together, so that the first frame and the second frame are interlocked to form a closed internal space of the box.

2. The frame profile and shell snap-fit ​​structure of a suitcase according to claim 1, characterized in that, The first frame includes a right-side extension of the first frame, a zipper mounting groove for the inner lining of the first frame, a steel wire mounting groove for the first frame, a left-side support rib for the first frame, a top inverted part of the first frame, a snap-fit ​​assembly groove for the first frame, and a right-side protruding rib for the first frame, wherein: The right extension of the first frame is located on the right side of the first frame and is inclined with the left side higher than the right side, for inserting the first box shell. The first frame lining zipper mounting groove is located in the middle of the first frame, and its opening faces downward, for accommodating the inner lining. The first frame steel wire mounting groove is located below the first frame inner lining zipper mounting groove, and its opening faces downward and is connected to the first frame inner lining zipper mounting groove. It is used to accommodate the inner lining fixing steel wire, and then connects to the first frame through the inner lining fixing part wrapped around the inner lining fixing steel wire. The left-side support rib of the first frame is located on the lower left side of the first frame and is used to support the second frame; The top inverted part of the first frame is horizontally disposed at the top of the first frame; The first frame snap-fit ​​assembly slot is located on the upper part of the first frame, and its opening faces to the right, for snapping into the first box shell; The right-side rib of the first frame is located on the right side of the first frame and above the right-side extension of the first frame, for guiding the first box shell.

3. The snap-fit ​​structure between the frame profile and the shell of a suitcase according to claim 2, characterized in that, The first housing also includes an undercut portion at the end of the first housing, wherein: The first box shell end buckle is fixedly connected to the left end of the first box shell surface extension and extends to the right, so as to engage with the top buckle of the first frame when the first box shell is snapped into the first frame.

4. The snap-fit ​​structure between the frame profile and the shell of a suitcase according to claim 3, characterized in that, When the buckled part at the end of the first housing is engaged in the first frame snap-fit ​​assembly groove, the protruding rib on the right side of the first frame is embedded in the internal reinforcing cavity of the first housing and abuts against the internal connecting rib of the first housing, in order to prevent the connection between the first housing and the first frame from becoming loose.

5. The frame profile and shell snap-fit ​​structure of a suitcase according to claim 2, characterized in that, The first housing also includes a first housing retaining strip and a first housing fastener, wherein: The first box shell clip has an L-shaped structure. Its vertical part abuts against the left end of the first box shell surface extension, and its horizontal part abuts against the outer surface of the first box shell surface extension. The first box shell clip and the first box shell surface extension are fixedly connected by the first box shell fastener. The right end of the first box shell clip is tilted upward, which is used to engage with the top snap-fit ​​part of the first frame when the first box shell is snapped into the first frame.

6. The frame profile and shell snap-fit ​​structure of a suitcase according to claim 1, characterized in that, The second frame includes a left side extension of the second frame, a zipper mounting groove for the inner lining of the second frame, a steel wire mounting groove for the second frame, a top snap-fit ​​part of the second frame, a snap-fit ​​assembly groove for the second frame, and a protruding rib on the left side of the second frame, wherein: The left extension of the second frame is located on the left side of the second frame and is inclined with the right side higher than the left side, for the purpose of introducing the second box shell; The second frame lining zipper mounting groove is located in the middle of the second frame, and its opening faces downward, for accommodating the inner lining; The second frame steel wire mounting groove is located below the second frame inner lining zipper mounting groove, and its opening faces downward and is connected to the second frame inner lining zipper mounting groove. It is used to accommodate the inner lining fixing steel wire, and then connects to the second frame through the inner lining fixing part wrapped around the inner lining fixing steel wire. The top inverted part of the second frame is horizontally located at the top of the second frame; The second frame snap-fit ​​assembly groove is located on the upper part of the second frame, and its opening faces to the left, for snapping the second housing shell; The left-side protruding rib of the second frame is located on the left side of the second frame and above the left-side extension of the second frame, for guiding the second housing.

7. The snap-fit ​​structure between the frame profile and the shell of a suitcase according to claim 6, characterized in that, The second housing also includes an undercut portion at the end of the second housing, wherein: The second box shell end buckle is fixedly connected to the right end of the second box shell surface extension and extends to the left, so as to engage with the second frame top buckle when the second box shell is snapped into the second frame.

8. The snap-fit ​​structure between the frame profile and the shell of a suitcase according to claim 7, characterized in that, When the undercut at the end of the second housing is engaged in the mounting groove of the second frame, the protruding rib on the left side of the second frame is embedded in the reinforcing cavity inside the second housing and abuts against the connecting rib inside the second housing, in order to prevent the connection between the second housing and the second frame from becoming loose.

9. The snap-fit ​​structure between the frame profile and the shell of a suitcase according to claim 6, characterized in that, The second housing also includes a second housing retaining strip and second housing fasteners, wherein: The second box shell clip has an L-shaped structure. Its vertical part abuts against the right end of the second box shell surface extension, and its horizontal part abuts against the outer surface of the second box shell surface extension. The second box shell clip and the second box shell surface extension are fixedly connected by the second box shell fastener. The left end of the second housing clip is tilted upwards to engage with the top snap-fit ​​part of the second frame when the second housing is snapped into the second frame.

10. The snap-fit ​​structure between the frame profile and the shell of a suitcase according to claim 1, characterized in that, The length of the internal reinforcement of the first housing shell is shorter than the length of the surface extension of the first housing shell; and / or, the length of the internal reinforcement of the second housing shell is shorter than the length of the surface extension of the second housing shell.

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