Middle frame structure of box body and luggage box

Abstract

The utility model relates to a middle frame structure of a box body and a luggage box. The middle frame structure of the box body is used for connecting a front cover and a rear cover of the box body and comprises a first frame body and a second frame body which abut against each other. The first frame body is arranged on the periphery of the rear cover along the edge of the rear cover in a surrounding manner; the second frame body is arranged on the periphery of the front cover in a surrounding mode along the edge of the front cover. A first fixed connection groove is formed in the inner wall of the first frame body, and the side wall of the rear cover is fixedly connected to the first fixed connection groove through a locking piece; a second fixed connection groove is formed in the inner wall of the second frame body, and the side wall of the front cover is fixedly connected to the second fixed connection groove through a locking piece. When the middle frame structure is assembled, the front cover and the rear cover are locked in the fixed connection groove of the middle frame structure from the inside of the box body through the locking piece, fixed assembly from the inside of the box body is achieved, the integrity of the box body is higher, and the appearance is more attractive.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a mid-frame structure for a box and a suitcase. Background Technology

[0002] In modern travel, suitcases are an indispensable tool, providing great convenience for travelers. The mid-frame structure, as a key part of the suitcase body, directly affects the overall quality and user experience.

[0003] Currently, most traditional suitcases use external locking mechanisms, securing the lid and frame with conspicuous screws and buckles. These exposed locking components not only make the suitcases look bulky and unattractive, hindering consumers' pursuit of style, but also make them unsuitable for high-end business or fashionable travel scenarios. Furthermore, this external locking design creates a series of practical problems. For example, during daily handling and baggage handling, the exposed locking components are easily damaged by impacts and scratches. Once the surface is worn down, the protective performance decreases, allowing dust and rainwater to enter the suitcase through the gaps, soiling or damaging clothing and other items. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a middle frame structure for connecting the front cover and the rear cover of the box. By providing fixing grooves on the inner wall of the middle frame structure for fixing to the front cover and the rear cover respectively, during assembly, locking components are used to lock the front cover and the rear cover to the fixing grooves of the middle frame structure from the inside of the box, thereby achieving fixed assembly from the inside of the box. This makes the box more integral and aesthetically pleasing. At the same time, it can avoid the installation gap generated when the front and rear covers are locked to the middle frame structure, resulting in better dustproof and waterproof performance and a more stable structure.

[0005] A mid-frame structure for a housing, used to connect the front cover and the rear cover of the housing, comprising:

[0006] A first frame and a second frame that abut against each other; the first frame surrounds the outer periphery of the rear cover along the edge of the rear cover; the second frame surrounds the outer periphery of the front cover along the edge of the front cover;

[0007] The inner wall of the first frame is provided with a first fixing groove, and the side wall of the rear cover is fixed at the opening of the first fixing groove and is fixed to the first fixing groove by a locking member.

[0008] The inner wall of the second frame is provided with a second fixing groove, and the side wall of the front cover is fixed at the opening of the second fixing groove and is fixed to the second fixing groove by a locking member.

[0009] Furthermore, the side wall of the rear cover has a first positioning hole positioned opposite the first fixing groove; the side wall of the front cover has a second positioning hole positioned opposite the second fixing groove.

[0010] Furthermore, the rear cover protrudes in the middle to form a first receiving groove; the front cover protrudes in the middle to form a second receiving groove; the openings of the first receiving groove and the second receiving groove are arranged opposite to each other;

[0011] The first frame has a first positioning part that extends from the inner wall towards the center. The edge of the groove of the first receiving groove abuts against the first positioning part so that the first positioning hole is aligned with the first fixing groove.

[0012] The second frame has a second positioning part that extends from the inner wall towards the center. The edge of the groove of the second receiving groove abuts against the second positioning part so that the second positioning hole is aligned with the second fixing groove.

[0013] Furthermore, the first frame is also provided with a first abutting part, and the second frame is also provided with a second abutting part, and the first abutting part and the second abutting part are arranged to abut against each other.

[0014] Furthermore, the middle frame structure of the enclosure also includes:

[0015] The first abutment portion has a positioning groove for the card strip on its outer wall. One end of the card strip has a snap-fit ​​portion that is embedded in the positioning groove. The other end of the card strip has a sealing portion that is sandwiched between the first abutment portion and the second abutment portion.

[0016] Furthermore, the snap-fit ​​portion and the sealing portion are arranged at a certain angle.

[0017] Furthermore, two relatively protruding locking bosses are provided at the opening of the positioning groove of the card strip.

[0018] Furthermore, the first abutting portion has a protruding tooth on its end face facing the second abutting portion; the second abutting portion has a tooth groove on its end face facing the first abutting portion that engages with the protruding tooth.

[0019] A suitcase includes: the middle frame structure described in this utility model.

[0020] Furthermore, the aforementioned suitcase also includes:

[0021] A hinge assembly; the hinge assembly covers the outer wall of the middle frame structure, and the two flaps of the hinge assembly are respectively fixed to the rear cover and the front cover.

[0022] The beneficial effects of this utility model are as follows:

[0023] (1) By setting fixing grooves on the inner wall of the middle frame structure to be fixedly connected to the front cover and the rear cover respectively, during assembly, locking parts are used to lock the front cover and the rear cover to the fixing grooves of the middle frame structure from the inside of the box, so as to achieve fixed assembly from the inside of the box, making the box more integrated and more beautiful in appearance; at the same time, it can avoid the installation gap generated when the front and rear covers are locked to the middle frame structure, and the dustproof and waterproof performance of the box is better and the structure is more stable.

[0024] (2) Both the first frame and the second frame can be extruded and then bent to form the frame. The process is simple and easy to implement.

[0025] (3) The first frame and the second frame are respectively provided with a first positioning part and a second positioning part, which are used to position the front cover and the rear cover during the assembly process, making it easy to align the positioning hole with the fixing groove;

[0026] (4) By setting an angled locking strip, one end of which is clamped into the locking strip positioning groove, the locking strip can be effectively fixed, preventing the locking strip from coming out of the first frame and improving the sealing stability of the box.

[0027] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is an assembly diagram of the middle frame structure provided in an embodiment of this application;

[0029] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0030] Figure 3 This is a structural schematic diagram of the first frame;

[0031] Figure 4 This is a structural schematic diagram of the second frame;

[0032] Figure 5 This is a schematic diagram of the structure of a suitcase provided in an embodiment of this application.

[0033] In the diagram: 10-Middle frame structure; 11-First frame body; 111-First fixing groove; 112-First abutting part; 113-Clip positioning groove; 1131-Clamping boss; 114-Protruding tooth; 115-First positioning part; 12-Second frame body; 121-Second fixing groove; 122-Second abutting part; 123-Groove; 124-Second positioning part; 13-Clip; 131-Clamping part; 132-Sealing part; 14-Locking element; 20-Rear cover; 21-First receiving groove; 30-Front cover; 31-Second receiving groove; 40-Hinge assembly. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Please see Figure 1-4 This application provides a middle frame structure for connecting the rear cover 20 and the front cover 30 of the box, including: a first frame 11 and a second frame 12 that abut against each other; the first frame 11 surrounds the outer periphery of the rear cover 20 along the edge of the rear cover 20; the second frame 12 surrounds the outer periphery of the front cover 30 along the edge of the front cover 30.

[0038] Specifically, the rear cover 20 protrudes in the middle to form a first receiving groove 21; the front cover 30 protrudes in the middle to form a second receiving groove 31; the openings of the first receiving groove 21 and the second receiving groove 31 are arranged opposite each other to form the receiving cavity of the box. The inner wall of the first frame 11 is provided with a first fixing groove 111, and the side wall of the rear cover 20 is fixed at the opening of the first fixing groove 111; the inner wall of the second frame 12 is provided with a second fixing groove 121, and the side wall of the front cover 30 is fixed at the opening of the second fixing groove 121.

[0039] In the mid-frame structure 10 provided in this embodiment, the first frame 11 and the second frame 12 are formed into annular frames by bending aluminum profiles, and then the edges of the rear cover 20 and the front cover 30 are covered respectively. In this configuration, the first fixing groove 111 and the second fixing groove 121 can be integrally extruded with the first frame 11 and the second frame 12 respectively without additional processing. During assembly, the side wall of the rear cover 20 only needs to cover the opening of the first fixing groove 111, and then the locking member 14 passes through the rear cover 20 and locks it to the first fixing groove 111; at the same time, the side wall of the front cover 30 covers the opening of the second fixing groove 121, and the locking member 14 passes through the front cover 30 and locks it to the second fixing groove 121; thus, it can achieve fixed assembly from the inside of the box, making the box more integrated and more aesthetically pleasing; at the same time, it can avoid the installation gap generated when the front and rear covers are locked with the mid-frame structure 10, and the box has better dustproof and waterproof performance and a more stable structure.

[0040] Please see Figure 1-4 Furthermore, in some embodiments, the side wall of the rear cover 20 has a first positioning hole at a position directly opposite the first fixing groove 111; the locking member 14 passes through the first positioning hole and locks itself in the first fixing groove 111, thereby locking the rear cover 20 from the inside of the housing to the first frame 11. The side wall of the front cover 30 has a second positioning hole at a position directly opposite the second fixing groove 121; the locking member 14 passes through the second positioning hole and locks itself in the second fixing groove 121, thereby locking the front cover 30 from the inside of the housing to the second frame 12.

[0041] Furthermore, in some embodiments, the first frame 11 is provided with a first positioning part 115 that protrudes inward along the inner wall, and the edge of the groove of the first receiving groove 21 abuts against the first positioning part 115 so that the first positioning hole is aligned with the first fixing groove 111. This arrangement facilitates positioning of the rear cover 20 during assembly, preventing uneven installation between the rear cover 20 and the first frame 11, which could lead to misalignment of the holes and affect assembly efficiency.

[0042] Furthermore, in some embodiments, the second frame 12 is provided with a second positioning part 124 extending in the same direction as the first positioning part 115, and the groove edge of the second receiving groove 31 abuts against the second positioning part 124 so that the second positioning hole is aligned with the second fixing groove 121. Similarly, this arrangement facilitates the positioning of the front cover 30 during assembly, so as to avoid misalignment between the front cover 30 and the second frame 12, which would make it difficult to align the holes and affect the assembly efficiency.

[0043] Furthermore, in some embodiments, the first frame 11 is provided with a first abutting part 112, and the second frame 12 is provided with a second abutting part 122. The first abutting part 112 and the second abutting part 122 are abutting each other, and when the box is fastened, the first abutting part 112 and the second abutting part 122 are in an abutting state.

[0044] Furthermore, in some embodiments, the middle frame structure 10 also includes a retaining strip 13, which is sandwiched between the first abutting portion 112 and the second abutting portion 122 to achieve a seal at the connection between the first frame 11 and the second frame 12.

[0045] In this embodiment of the application, a positioning groove 113 is provided on the outer wall of the first abutting part 112, and a snap-fit ​​part 131 is provided at one end of the snap-fit ​​part 131, which is embedded in the positioning groove 113 to fix the snap-fit ​​part 13; a sealing part 132 is provided at the other end of the snap-fit ​​part 132, which is sandwiched between the first abutting part 112 and the second abutting part 122.

[0046] Furthermore, in some embodiments, the snap-fit ​​portion 131 and the sealing portion 132 are arranged at a certain angle. Specifically, the snap-fit ​​strip 13 can be L-shaped or T-shaped, which facilitates its fastening within the first frame 11 and prevents the snap-fit ​​strip 13 from falling off the first frame 11.

[0047] Furthermore, in some embodiments, two opposing protruding locking bosses 1131 are provided at the opening of the card strip positioning groove 113. The locking bosses 1131 tightly fix the locking part in the card strip positioning groove 113, preventing the locking part from coming out of the card strip positioning groove 113.

[0048] Furthermore, in some embodiments, the first abutting part 112 is provided with a protruding tooth 114 on the end face facing the second abutting part 122; the second abutting part 122 is provided with a tooth groove 123 that engages with the protruding tooth 114 on the end face facing the first abutting part 112; by providing the interlocking protruding tooth 114 and tooth groove 123, the positioning of the first frame 11 and the second frame 12 is achieved, avoiding the relative misalignment of the first frame 11 and the second frame 12 from affecting the locking of the housing.

[0049] Please see Figure 1 and Figure 5 This application embodiment also provides a suitcase, including a back cover 20, a front cover 30, and a middle frame structure 10 for fixing the back cover 20 and the front cover 30. The back cover 20 and the front cover 30 are locked from the inside of the suitcase to the middle frame structure 10 by a locking member 14. The suitcase has strong integrity, a more beautiful appearance, and good stability.

[0050] Furthermore, in some embodiments, the suitcase also includes a hinge assembly 40 for the rotational opening and closing of the rear cover 20 and the front cover 30. The hinge assembly 40 covers the outer wall of the middle frame structure 10, and its two flaps are respectively fixed to the rear cover 20 and the front cover 30 to realize the relative rotational opening and closing of the rear cover 20 and the front cover 30.

[0051] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:

[0052] (1) By setting fixing grooves on the inner wall of the middle frame structure to fix the front cover and the rear cover respectively, during assembly, locking parts are used to lock the front cover and the rear cover to the fixing grooves of the middle frame structure from the inside of the box, so as to achieve fixed assembly from the inside of the box, making the box more integrated and more beautiful; at the same time, it can avoid the installation gap generated when the front and rear covers are locked to the middle frame structure, and the dustproof and waterproof performance of the box is better and the structure is more stable.

[0053] (2) Both the first frame and the second frame can be extruded and then bent to form the frame. The process is simple and easy to implement.

[0054] (3) The first frame and the second frame are respectively provided with a first positioning part and a second positioning part, which are used to position the front cover and the rear cover during the assembly process, making it easy to align the positioning hole with the fixing groove;

[0055] (4) By setting an angled locking strip, one end of which is clamped into the locking strip positioning groove, the locking strip can be effectively fixed, preventing the locking strip from coming out of the first frame and improving the sealing stability of the box.

[0056] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A middle frame structure of a case for connecting a front cover and a rear cover of the case, characterized by, include: A first frame (11) and a second frame (12) abut against each other; the first frame (11) surrounds the outer periphery of the rear cover (20) along the edge of the rear cover (20); the second frame (12) surrounds the outer periphery of the front cover (30) along the edge of the front cover (30); The inner wall of the first frame (11) is provided with a first fixing groove (111), and the side wall of the rear cover (20) is fixed at the opening of the first fixing groove (111) and fixed to the first fixing groove (111) by a locking member. The inner wall of the second frame (12) is provided with a second fixing groove (121), and the side wall of the front cover (30) is fixed at the opening of the second fixing groove (121) and fixed to the second fixing groove (121) by a locking member.

2. The middle frame structure of a box according to claim 1, characterized in that: The side wall of the rear cover (20) is provided with a first positioning hole at the position of the first fixing groove (111); the side wall of the front cover (30) is provided with a second positioning hole at the position of the second fixing groove (121).

3. The middle frame structure of a box according to claim 2, characterized in that: The rear cover (20) protrudes in the middle to form a first receiving groove (21); the front cover (30) protrudes in the middle to form a second receiving groove (31); the openings of the first receiving groove (21) and the second receiving groove (31) are arranged opposite to each other; The first frame (11) is provided with a first positioning part (115) extending from the inner wall towards the center. The groove edge of the first receiving groove (21) abuts against the first positioning part (115) so that the first positioning hole is aligned with the first fixing groove (111). The second frame (12) extends from the inner wall towards the center and is provided with a second positioning part (124). The groove edge of the second receiving groove (31) abuts against the second positioning part (124) so ​​that the second positioning hole is aligned with the second fixing groove (121).

4. The middle frame structure of a box according to claim 1, characterized in that: The first frame (11) is further provided with a first abutting part (112), and the second frame (12) is further provided with a second abutting part (122). The first abutting part (112) and the second abutting part (122) are abutting each other.

5. The mid-frame structure of a box according to claim 4, wherein, Also includes: The first abutment (112) has a positioning groove (113) on its outer wall. One end of the card strip (13) is provided with a snap-fit ​​part (131) which is embedded in the positioning groove (113). The other end of the card strip (13) is provided with a sealing part (132) which is sandwiched between the first abutment (112) and the second abutment (122).

6. The middle frame structure of a box according to claim 5, characterized in that: The snap-fit ​​portion (131) and the sealing portion (132) are arranged at a certain angle.

7. The middle frame structure of a box according to claim 6, characterized in that: Two opposing locking bosses (1131) are provided at the opening of the positioning groove (113) of the card strip.

8. The middle frame structure of a box according to claim 4, characterized in that: The first abutting part (112) has a protruding tooth (114) on the end face facing the second abutting part (122); the second abutting part (122) has a tooth groove (123) on the end face facing the first abutting part (112) that engages with the protruding tooth (114).

9. A luggage case characterized by, include: The middle frame structure (10) according to any one of claims 1-8.

10. A luggage case as defined in claim 9, wherein, Also includes: Hinge assembly (40); the hinge assembly (40) covers the outer wall of the middle frame structure (10), and the two leaves of the hinge assembly (40) are respectively fixed to the rear cover (20) and the front cover (30).

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