Modularized box capable of being freely combined into different sizes and specifications

Abstract

The invention discloses a modular box capable of being freely combined into different sizes and specifications, the modular box comprises a plurality of shell groups and a plurality of connecting assemblies, the shell groups are sequentially arranged to define a containing cavity, every two adjacent shell groups are connected through the connecting assemblies, each shell group comprises an upper shell and a lower shell, and each connecting assembly comprises an upper connecting piece and a lower connecting piece; the upper connecting pieces are detachably and fixedly connected with the two adjacent upper shells, the lower connecting pieces are detachably and fixedly connected with the two adjacent lower shells, the upper shells and the lower shells of the same shell set define containing spaces, the containing spaces formed by the shell sets are communicated with one another to form containing cavities, and the upper shells can synchronously rotate relative to the lower shells to open and close the containing cavities. According to the modular box, the modular box is configured into the multiple shell sets and the multiple connecting assemblies, the multiple shell sets are sequentially connected through the connecting assemblies to define the containing cavity, and the connecting assemblies are detachably and fixedly connected with the two adjacent shell sets, so that the modular box can adjust the storage and placement space of the containing cavity by adjusting the number of the shell sets; the use is flexible and changeable, and the adaptability is good.

Description

Technical Field

[0001] The invention relates to the technical field of storage boxes, and in particular to modular boxes that can be freely combined into different sizes and specifications. Background Art

[0002] Storage boxes are daily necessities for storing and placing items, and are widely used. Existing storage boxes include a base shell and an upper cover, which together form a storage cavity, and the upper cover can be detachably connected to the base shell or rotatably connected to one side of the base shell, so as to open and close the storage cavity to place and store items. Since the sizes of the base shell and the upper cover are not adjustable, the storage space of the storage cavity is not adjustable, and the adaptability is poor. Summary of the invention

[0003] The purpose of the present invention is to provide a modular box that can be freely combined into different sizes and specifications, so as to solve the problems of the existing storage box that the size is not adjustable, the storage space is unique, and the adaptability is poor.

[0004] The present invention is achieved through the following technical solutions: A modular box that can be freely combined into different sizes and specifications includes a plurality of shell groups and a plurality of connecting components. The plurality of shell groups are arranged in sequence to enclose a accommodating cavity. Two adjacent shell groups are connected by the connecting components. The shell group includes an upper shell and a lower shell. The connecting components include an upper connecting member and a lower connecting member. The upper connecting member is detachably fixedly connected to the two adjacent upper shells, and the lower connecting member is detachably fixedly connected to the two adjacent lower shells. The upper shell and the lower shell of the same shell group enclose a accommodating space. The accommodating spaces formed by the shell groups are interconnected to form the accommodating cavity. The plurality of upper shells can rotate synchronously relative to the plurality of lower shells to open and close the accommodating cavity.

[0005] Furthermore, the arrangement direction of the shell groups is defined as the left-right direction, the upper connecting member has two upper fixing rods, and the two adjacent upper shells are respectively provided with upper fixing holes for the two upper fixing rods to be inserted accordingly, and the upper fixing holes open downward for the corresponding upper fixing rods to be inserted from bottom to top; the lower connecting member has two lower fixing rods, and the two adjacent lower shells are respectively provided with lower fixing holes for the two lower fixing rods to be inserted accordingly, and the lower fixing holes open upward for the corresponding lower fixing rods to be inserted from top to bottom.

[0006] Further, the upper shell is rotatably connected to the lower shell at the rear side of the lower shell, and the upper connecting member has an upper connecting rod and two upper fixed groups, the upper connecting rod extends front and back, and the two upper fixed groups are arranged on the left and right sides of the upper connecting rod, and the upper fixed group is composed of two upper fixed rods arranged on the front and rear ends of the upper connecting rod, and the two upper fixed rods of the same group are symmetrical front and back, and an upper hole group is provided on the two adjacent upper shells, and the two upper hole groups correspond to the two upper fixed groups one by one, and the upper hole group is composed of two upper fixed holes on the upper shell that are opposite to each other front and back, and the two upper fixed holes of the same group are provided for the same The two upper fixed rods of the group are inserted correspondingly; the lower connecting part has a lower connecting rod and two lower fixed groups, the lower connecting rod extends front and back, the two lower fixed groups are arranged on the left and right sides of the lower connecting rod, the lower fixed group is composed of two lower fixed rods arranged on the front and rear ends of the lower connecting rod, the two lower fixed rods of the same group are symmetrical front and back, and the two adjacent lower shells are provided with a lower hole group, the two lower hole groups correspond to the two lower fixed groups one by one, the lower hole group is composed of two lower fixed holes opposite to each other on the lower shell, and the two lower fixed holes of the same group are for the two lower fixed rods of the same group to be inserted correspondingly.

[0007] Furthermore, the two adjacent upper shells cooperate to form an upper fixed groove for the upper connecting rod to be inserted, and the two adjacent lower shells cooperate to form a lower fixed groove for the lower connecting rod to be inserted; and / or the upper connecting rod and the upper fixed rod are alternately spaced left and right, and the lower connecting rod and the lower fixed rod are alternately spaced left and right; and / or the upper connecting rod fits tightly on the inner wall of the upper shell, and the lower connecting rod fits tightly on the inner wall of the lower shell.

[0008] Furthermore, the upper shell is provided with a first fastener and a second fastener, the first fastener partially extends into the upper fixing hole to lock the upper fixing rod to the upper shell, and the second fastener passes through the upper connecting rod to lock the upper connecting rod to the upper shell; the lower shell is provided with a third fastener and a fourth fastener, the third fastener partially extends into the lower fixing hole to lock the lower fixing rod to the lower shell, and the fourth fastener passes through the lower connecting rod to lock the lower connecting rod to the lower shell.

[0009] Furthermore, the upper shell has an upper buckle portion, and the lower shell is provided with a pull buckle, which can be rotated relative to the lower shell to buckle or release the upper buckle portion; the pull buckle has a buckling part and a toggle part, the buckling part is rotatably connected to the lower shell and has an outer buckle part that snaps into engagement with the upper buckle portion, the toggle part is rotatably connected to the buckling part and has a receiving hole for the buckling part to be flipped and placed therein, and a toggle recess is formed on the side of the upper end of the toggle part opposite to the upper shell, and an anti-slip convex strip is formed on the toggle recess.

[0010] Furthermore, the lower shell has a lower buckle portion, the pull buckle is detachably rotatably connected to the lower shell below the lower buckle portion, the lower buckle portion and the upper buckle portion are symmetrical up and down, and the pull buckle can be detachably rotatably connected to the upper shell above the upper buckle portion.

[0011] Furthermore, the abutting parts of the lower shell and the upper shell enclose and form a sealed cavity, and a sealing strip is provided in the sealed cavity.

[0012] Furthermore, some of the shell groups include a central shell group and a side-connected shell group, there are two side-connected shell groups, and the two side-connected shell groups are arranged on the left and right sides of the central shell group; some of the shell groups also include a continuous shell group, and the continuous shell group is arranged between the central shell group and the side-connected shell group.

[0013] Further, the central shell group includes a central upper shell and a central lower shell, and the central upper shell and the central lower shell cooperate to form a handle, and the side-connected shell group includes a side-connected upper shell and a side-connected lower shell, the side-connected upper shell has an upper edge portion, and the side-connected lower shell has a lower edge portion, and the upper edge portion and the lower edge portion are abutted against each other and connected by a sixth fastener.

[0014] The advantage of the technical solution is that by configuring the modular box into a plurality of shell groups and a plurality of connecting components, the plurality of shell groups are sequentially connected and enclosed by the connecting components to form a accommodating cavity, and the connecting components are detachably fixedly connected to two adjacent shell groups, so that the modular box can adjust the storage placement space of the accommodating cavity by adjusting the number of shell groups, and the use is flexible and versatile, and the adaptability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0017] Figure 1 It is a three-dimensional diagram of the modular box disclosed in Example 1 that can be freely combined into different sizes; Figure 2 It is an exploded view of the modular box disclosed in Example 1 that can be freely combined into different sizes; Figure 3 It is a top view of the modular box disclosed in Example 1 that can be freely combined into different sizes; Figure 4 yes Figure 3Sectional view at AA in the middle; Figure 5 yes Figure 4 A partial enlarged view of point C in the middle; Figure 6 yes Figure 3 Sectional view at the middle BB; Figure 7 yes Figure 6 A partial enlarged view of point D in the middle; Figure 8 is a three-dimensional diagram of the upper shell in Example 1; Fig. 9 is a three-dimensional diagram of the upper connecting member in Example 1; Fig.10 is a three-dimensional diagram of the lower shell in Example 1; Fig.11 is a three-dimensional diagram of the lower connecting member in Example 1; Fig.12 It is a three-dimensional diagram of the modular box disclosed in Example 2 that can be freely combined into different sizes; Fig.13 It is a three-dimensional diagram of the modular box disclosed in Example 3 that can be freely combined into different sizes. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Figure 1-11As shown, the modular box that can be freely combined into different sizes includes a plurality of shell groups 1 and a plurality of connecting components 2. The plurality of shell groups 1 are arranged in sequence to enclose a receiving cavity 101. Two adjacent shell groups 1 are connected by the connecting component 2. The shell group 1 includes an upper shell 102 and a lower shell 103. The connecting component 2 includes an upper connecting member 201 and a lower connecting member 202. The upper connecting member 201 is detachably fixedly connected to the two adjacent upper shells 102. The lower connecting member 202 is detachably fixedly connected to the two adjacent lower shells 103. The upper shell 102 and the lower shell 103 of the same shell group 1 are enclosed to form a receiving space (not marked in the figure). The receiving spaces formed by each shell group 1 are interconnected to form a receiving cavity 101. The plurality of upper shells 102 can rotate synchronously relative to the plurality of lower shells 103 to open and close the receiving cavity 101. The present embodiment provides a modular box that can be freely combined into different sizes to solve the problems of existing storage boxes that are not adjustable in size, have a unique storage space, and have poor adaptability. The modular box is mainly configured into a plurality of shell groups 1 and a plurality of connecting components 2. The plurality of shell groups 1 are connected in sequence through the connecting components 2 to form a accommodating cavity 101. The connecting components 2 are detachably fixedly connected to two adjacent shell groups 1, so that the modular box can adjust the storage space of the accommodating cavity 101 by adjusting the number of shell groups 1. The modular box is flexible and versatile in use and has good adaptability.

[0020] In the embodiment of the present invention, the arrangement direction of the plurality of shell groups 1 is defined as the left-right direction, the upper connecting member 201 has two upper fixing rods 203, and the two adjacent upper shells 102 are respectively provided with upper fixing holes 104 for corresponding insertion of the two upper fixing rods 203, and the upper fixing holes 104 are opened downward for corresponding insertion of the upper fixing rods 203 from bottom to top. The above arrangement is configured by configuring the two upper fixing rods 203 on the upper connecting member 201, and configuring the upper fixing holes 104 for corresponding insertion of the two upper fixing rods 203 on the adjacent upper shells 102, so that the upper connecting member 201 is detachably fixedly connected to the upper shell 102, and the disassembly and assembly are convenient.

[0021] In the embodiment of the present invention, the upper shell 102 is rotatably connected to the lower shell 103 at the rear side of the lower shell 103, and the upper connecting member 201 has an upper connecting rod 204 and two upper fixed groups 205. The upper connecting rod 204 extends front and back, and the two upper fixed groups 205 are respectively arranged on the left and right sides of the upper connecting rod 204. The upper fixed group 205 is composed of two upper fixed rods 203 respectively arranged on the front and rear ends of the upper connecting rod 204. The two upper fixed rods 203 of the same group are symmetrical front and back. Upper hole groups 105 are respectively provided on the two adjacent upper shells 102, and the two upper hole groups 105 correspond to the two upper fixed groups 205 one by one. The upper hole group 105 is composed of two upper fixed holes 104 opposite to each other on the upper shell 102. The two upper fixed holes 104 of the same group are for the corresponding insertion of the two upper fixed rods 203 of the same group. The above-mentioned arrangement is achieved by configuring an upper fixing group 205 on the left and right sides of the upper connecting member 201, the upper fixing group 205 being configured to be composed of two upper fixing rods 203 opposite to each other front and back, and configuring an upper hole group 105 on the upper shell 102, the upper hole group 105 being composed of two upper fixing holes 104 opposite to each other front and back, so that the upper connecting member 201 is stably connected to the two adjacent upper shells 102 and is not easy to loosen.

[0022] In the embodiment of the present invention, the lower connecting member 202 has two lower fixing rods 206, and the two adjacent lower shells 103 are respectively provided with lower fixing holes 106 for the two lower fixing rods 206 to be inserted into, and the lower fixing holes 106 are opened upward for the corresponding lower fixing rods 206 to be inserted from top to bottom. The above arrangement is configured by configuring the lower fixing rods 206 on the lower connecting member 202 and configuring the lower fixing holes 106 for the two adjacent lower shells 103 for the two lower fixing rods 206 to be inserted into, so that the lower connecting member 202 is detachably fixedly connected to the lower shell 103, and the disassembly and assembly are convenient.

[0023] In the embodiment of the present invention, the lower connecting member 202 has a lower connecting rod 207 and two lower fixing groups 208. The lower connecting rod 207 extends forward and backward. The two lower fixing groups 208 are respectively arranged on the left and right sides of the lower connecting rod 207. The lower fixing group 208 is composed of two lower fixing rods 206 respectively arranged on the front and rear ends of the lower connecting rod 207. The two lower fixing rods 206 of the same group are symmetrical front and back. A lower hole group 107 is provided on the two adjacent lower shells 103. The two lower hole groups 107 correspond to the two lower fixing groups 208 one by one. The lower hole group 107 is composed of two lower fixing holes 106 opposite to each other front and back on the lower shell 103. The two lower fixing holes 106 of the same group are for the corresponding insertion of the two lower fixing rods 206 of the same group. The above-mentioned arrangement is achieved by configuring a lower fixing group 208 on the left and right sides of the lower connecting rod 207, the lower fixing group 208 being configured to be composed of two lower fixing rods 206 opposite to each other front and back, and configuring a lower hole group 107 on the lower shell 103, the lower hole group 107 being composed of two lower fixing holes 106 opposite to each other front and back, so that the lower connecting member 202 is stably connected to the two adjacent lower shells 103 and is not easy to loosen.

[0024] In the embodiment of the present invention, two adjacent upper shells 102 cooperate to form an upper fixed groove 108 for the upper connecting rod 204 to be placed in. The above arrangement makes the upper shell 102 and the upper connecting member 201 assembled stably and has a good connection effect by configuring the upper fixed groove 108 for the upper connecting rod 204 to be placed in the two adjacent upper shells 102.

[0025] In the embodiment of the present invention, two adjacent lower shells 103 cooperate to form a lower fixed groove 109 for the lower connecting rod 207 to be placed in. The above arrangement makes the lower shell 103 and the lower connecting member 202 assembled stably and has a good connection effect by configuring the lower fixed groove 109 for the lower connecting rod 207 to be placed in the two adjacent lower shells 103.

[0026] In the embodiment of the present invention, the upper connecting rod 204 is alternately spaced with the upper fixed rod 203. The above arrangement avoids interference between the upper fixed rod 203 and the upper connecting rod 204 when the upper fixed rod 203 is inserted into the upper fixed hole 104 by arranging the upper connecting rod 204 and the upper fixed rod 203 to be alternately spaced with each other.

[0027] In the embodiment of the present invention, the lower connecting rod 207 is alternately spaced with the lower fixing rod 206. The above arrangement avoids interference between the lower fixing rod 206 and the lower connecting rod 207 when the lower fixing rod 206 is inserted into the lower fixing hole 106 by arranging the lower connecting rod 207 and the lower fixing rod 206 to be alternately spaced with each other.

[0028] In the embodiment of the present invention, the upper connecting rod 204 is closely attached to the inner wall of the upper shell 102, and the lower connecting rod 207 is closely attached to the inner wall of the lower shell 103. The above arrangement is configured to closely attach the upper connecting rod 204 to the inner wall of the upper shell 102, and the lower connecting rod 207 to the inner wall of the lower shell 103, so that the upper connecting rod 204 is closely assembled with the upper shell 102, and the lower connecting rod 207 is closely assembled with the lower shell 103.

[0029] In the embodiment of the present invention, the upper shell 102 is provided with a first fastener 110 and a second fastener 111, the first fastener 110 partially extends into the upper fixing hole 104 to lock the upper fixing rod 203 on the upper shell 102, and the second fastener 111 passes through the upper connecting rod 204 to lock the upper connecting rod 204 on the upper shell 102. The above arrangement is configured on the upper shell 102 to lock the upper fixing rod 203 on the upper shell 102 and the second fastener 111 to lock the upper connecting rod 204 on the upper shell 102, so that the upper shell 102 and the upper connecting member 201 are stably connected.

[0030] In the embodiment of the present invention, the lower shell 103 is provided with a third fastener 112 and a fourth fastener 113, the third fastener 112 partially extends into the lower fixing hole 106 to lock the lower fixing rod 206 on the lower shell 103, and the fourth fastener 113 passes through the lower connecting rod 207 to lock the lower connecting rod 207 on the lower shell 103. The above arrangement is provided on the lower shell 103 to lock the lower fixing rod 206 on the lower shell 103 and the fourth fastener 113 to lock the lower connecting rod 207 on the lower shell 103, so that the lower shell 103 is stably connected to the lower connecting member 202.

[0031] In the embodiment of the present invention, the upper shell 102 has a buckle portion 114, and the lower shell 103 is provided with a pull button 115, which can rotate relative to the lower shell 103 to buckle or release the buckle portion 114. The above arrangement is configured by configuring the buckle portion 114 on the upper shell 102 and configuring the pull button 115 on the lower shell 103 to buckle with the buckle portion 114, so that the upper shell 102 can be locked on the lower shell 103 when the upper shell 102 is covered on the lower shell 103.

[0032] In the embodiment of the present invention, the trigger 115 has a fastening member 116 and a toggle member 117. The fastening member 116 is rotatably connected to the lower shell 103 and has an outer fastening portion 118 that is snap-fitted with the upper fastening portion 114. The toggle member 117 is rotatably connected to the fastening member 116 and has a receiving hole (not shown in the figure) for the fastening member 116 to be flipped and placed. The above arrangement is convenient for toggling the trigger 115 to release the buckle by configuring the trigger 115 to be a fastening member 116 rotatably connected to the lower shell 103 and a toggle member 117 rotatably connected to the fastening member 116.

[0033] In the embodiment of the present invention, a toggle recess 120 is formed on the side of the upper end of the toggle member 117 opposite to the upper shell 102, and an anti-slip convex strip (not shown in the figure) is formed on the toggle recess 120. The above arrangement is to facilitate toggling the trigger buckle 115 to release the buckle by configuring the toggle recess 120 on the side of the upper end of the toggle member 117 opposite to the upper shell 102 and configuring the anti-slip convex strip on the toggle recess 120.

[0034] In the embodiment of the present invention, the lower shell 103 has a lower buckle portion 122, and the pull button 115 is detachably rotatably connected to the lower shell 103 below the lower buckle portion 122. The lower buckle portion 122 is symmetrical with the upper buckle portion 114, and the pull button 115 can be detachably rotatably connected to the upper shell 102 above the upper buckle portion 114. The above arrangement is configured on the lower shell 103 with the lower buckle portion 122 symmetrical with the upper buckle portion 114, and the pull button 115 is configured to be detachably rotatably connected to the upper shell 102 above the upper buckle portion 114, so that the assembly position of the pull button 115 is adjustable, and the assembly is flexible and changeable.

[0035] In the embodiment of the present invention, the lower shell 103 and the upper shell 102 abut against each other to form a sealed cavity (not shown in the figure), and a sealing strip 123 is provided in the sealed cavity. Since the lower shell 103 and the upper shell 102 abut against each other to form a sealed cavity, and the sealing strip 123 is provided in the sealed cavity, the assembly of the lower shell 103 and the upper shell 102 is airtight.

[0036] In the embodiment of the present invention, the plurality of shell groups 1 include a central shell group 124 and side-connected shell groups 125 . There are two side-connected shell groups 125 , and the two side-connected shell groups 125 are respectively arranged on the left and right sides of the central shell group 124 .

[0037] In the embodiment of the present invention, the central shell group 124 includes a central upper shell 126 and a central lower shell 127, and the central upper shell 126 and the central lower shell 127 cooperate to form a handle 128. The side shell group 125 includes a side upper shell 129 and a side lower shell 130. The side upper shell 129 has an upper edge 131, and the side lower shell 130 has a lower edge 132. The upper edge 131 and the lower edge 132 are abutted against each other and connected by a sixth fastener (not shown in the figure). The above arrangement is convenient for taking and moving the modular box by configuring the handle 128 on the central shell group 124; and by configuring the upper edge 131 on the side upper shell 129 and the lower edge 132 on the side lower shell 130, the upper edge 131 and the lower edge 132 are abutted against each other and connected by a sixth fastener, so that the side shell group 125 is connected stably.

[0038] In the embodiment of the present invention, the side upper shell 129 and the side lower shell 130 are of the same shape, and the center upper shell 126 and the center lower shell 127 are of the same shape. Since the side upper shell 129 and the side lower shell 130 are of the same shape, and the center upper shell 126 and the center lower shell 127 are of the same shape, the number of molds can be effectively reduced, the production cost can be saved, and the assembly is convenient.

[0039] Example 2: Fig.12 As shown, the difference from Example 1 is that the several shell groups 1 also include a continuous shell group 133, and the continuous shell group 133 is arranged between the central shell group 124 and the side shell group 125. Specifically, there are two continuous shell groups 133, and the continuous shell group 133 includes a continuous upper shell 134 and a continuous lower shell 135, and the continuous upper shell 134 and the continuous lower shell 135 are consistent in shape.

[0040] Example 3: Fig.13 As shown, the difference from Example 1 is that the several shell groups 1 also include a continuous shell group 133, and the continuous shell group 133 is arranged between the central shell group 124 and the side shell group 125. Specifically, there are 4 continuous shell groups 133, and the continuous shell group 133 includes a continuous upper shell 134 and a continuous lower shell 135, and the continuous upper shell 134 and the continuous lower shell 135 are consistent in shape.

[0041] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center of a circle", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of the present invention, or any technical deduction or replacement based on the concept of the present invention shall be regarded as the protection of the present invention.

Claims

1. Can be freely combined into modular boxes of different sizes, characterized by: It includes a plurality of shell groups and a plurality of connecting components, wherein the plurality of shell groups are arranged in sequence to enclose a receiving cavity, and two adjacent shell groups are connected via the connecting components, the shell group includes an upper shell and a lower shell, and the connecting components include an upper connecting member and a lower connecting member, the upper connecting member is detachably fixedly connected to the two adjacent upper shells, and the lower connecting member is detachably fixedly connected to the two adjacent lower shells, the upper shell and the lower shell of the same shell group are enclosed to form a receiving space, and the receiving spaces formed by the shell groups are interconnected to form the receiving cavity, and the plurality of upper shells can synchronously rotate relative to the plurality of lower shells to open and close the receiving cavity.

2. The modular box that can be freely combined into different sizes according to claim 1 is characterized in that: The arrangement direction of the shell groups is defined as the left-right direction, the upper connecting member has two upper fixed rods, and the two adjacent upper shells are respectively provided with upper fixed holes for the two upper fixed rods to be inserted into respectively, and the upper fixed holes are opened downward for the corresponding upper fixed rods to be inserted from bottom to top; The lower connecting member has two lower fixing rods, and the two adjacent lower shells are respectively provided with lower fixing holes for corresponding insertion of the two lower fixing rods, and the lower fixing holes are opened upward for the corresponding lower fixing rods to be inserted from top to bottom.

3. The modular box that can be freely combined into different sizes according to claim 2 is characterized in that: The upper shell is rotatably connected to the lower shell at the rear side of the lower shell, the upper connecting member has an upper connecting rod and two upper fixed groups, the upper connecting rod extends front and back, the two upper fixed groups are arranged on the left and right sides of the upper connecting rod, the upper fixed group is composed of two upper fixed rods arranged at the front and rear ends of the upper connecting rod, the two upper fixed rods of the same group are symmetrical front and back, an upper hole group is arranged on the two adjacent upper shells, the two upper hole groups correspond to the two upper fixed groups one by one, the upper hole group is composed of two upper fixed holes on the upper shell that are opposite to each other front and back, and the two upper fixed holes in the same group are used for the corresponding insertion of the two upper fixed rods of the same group; The lower connecting member comprises a lower connecting rod and two lower fixing groups, the lower connecting rod extends front and back, the two lower fixing groups are arranged on the left and right sides of the lower connecting rod, the lower fixing group is composed of two lower fixing rods arranged on the front and rear ends of the lower connecting rod, the two lower fixing rods of the same group are symmetrical front and back, and a lower hole group is provided on two adjacent lower shells, the two lower hole groups correspond to the two lower fixing groups one by one, the lower hole group is composed of two lower fixing holes opposite to each other front and back on the lower shell, and the two lower fixing holes of the same group are for the corresponding insertion of the two lower fixing rods of the same group.

4. The modular box that can be freely combined into different sizes according to claim 3 is characterized in that: The two adjacent upper shells cooperate to form an upper fixed groove for the upper connecting rod to be placed in, and the two adjacent lower shells cooperate to form a lower fixed groove for the lower connecting rod to be placed in; and / or the upper connecting rod and the upper fixed rod are alternately spaced left and right, and the lower connecting rod and the lower fixed rod are alternately spaced left and right; And / or the upper connecting rod is tightly fitted on the inner wall of the upper shell, and the lower connecting rod is tightly fitted on the inner wall of the lower shell.

5. The modular box that can be freely combined into different sizes according to claim 3 is characterized in that: The upper shell is provided with a first fastener and a second fastener, the first fastener partially extends into the upper fixing hole to lock the upper fixing rod on the upper shell, and the second fastener passes through the upper connecting rod to lock the upper connecting rod on the upper shell; The lower shell is provided with a third fastener and a fourth fastener, the third fastener partially extends into the lower fixing hole to lock the lower fixing rod on the lower shell, and the fourth fastener passes through the lower connecting rod to lock the lower connecting rod on the lower shell.

6. The modular box that can be freely combined into different sizes according to claim 1, characterized in that: The upper shell has an upper buckle portion, and the lower shell is provided with a pull button, and the pull button can be rotated relative to the lower shell to buckle or release the upper buckle portion; The lever has a buckle and a toggle member, the buckle is rotatably connected to the lower shell and has an outer buckle portion that snaps into engagement with the upper buckle portion, the toggle member is rotatably connected to the buckle and has a receiving hole for the buckle to be flipped and inserted, a toggle recess is formed on the upper end of the toggle member on the side opposite to the upper shell, and an anti-slip convex strip is formed on the toggle recess.

7. The modular box that can be freely combined into different sizes according to claim 6, characterized in that: The lower shell has a lower buckle portion, the pull buckle is detachably rotatably connected to the lower shell below the lower buckle portion, the lower buckle portion is symmetrical with the upper buckle portion up and down, and the pull buckle can be detachably rotatably connected to the upper shell above the upper buckle portion.

8. The modular box that can be freely combined into different sizes according to claim 1, characterized in that: The abutting parts of the lower shell and the upper shell together form a sealed cavity, and a sealing strip is arranged in the sealed cavity.

9. The modular box that can be freely combined into different sizes according to claim 1, characterized in that: The plurality of shell groups include a central shell group and a side-connected shell group, wherein the side-connected shell groups are two, and the two side-connected shell groups are arranged on the left and right sides of the central shell group; Some of the shell groups further include a continuous shell group, and the continuous shell group is arranged between the central shell group and the side shell group.

10. The modular box that can be freely combined into different sizes according to claim 9, characterized in that: The central shell group includes a central upper shell and a central lower shell, and the central upper shell and the central lower shell cooperate to form a handle. The side-connected shell group includes a side-connected upper shell and a side-connected lower shell. The side-connected upper shell has an upper side portion, and the side-connected lower shell has a lower side portion. The upper side portion and the lower side portion are abutted against each other and are connected by a sixth fastener.

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