Dragging moving box body and equipment

Abstract

The utility model discloses a dragging and moving box and equipment, which comprises a shell, a support component and a roller component, the support component is arranged at the rear end of the lower part of the shell, the roller component is rotatably arranged at the front end of the lower part of the shell, and the roller component can support the shell and enable the shell to move. The shell can be supported by the supporting assembly and the rolling wheel assembly in a matched mode so that the shell can stand still on the plane, and when the shell stands still on the plane, compared with a supporting point of the supporting assembly, the gravity center of the shell is relatively close to the supporting point of the rolling wheel assembly. According to the utility model, when the equipment is in a static state, the gravity center deviates to the roller assembly, so that the acting force which is opposite to the force application direction of a user and is generated when the user drags the equipment to slide obliquely is reduced, the gravity center of the equipment is more easily shifted by the user, the roller assembly is used as a support to drag the equipment to move, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dragging and moving box design, in particular to a dragging and moving box and equipment. Background Art

[0002] With the development of society, more and more equipment has entered people's production and life. In order to improve the convenience of equipment movement, many manufacturers will install multiple rollers as roller assemblies at the bottom of the equipment box during production to facilitate users to drag the equipment to move, and enable the equipment to stand upright relative to the supporting surface with the support of the roller assembly when it needs to remain stationary.

[0003] Among them, when moving some small equipment, many workers will choose to pull the equipment down to move it in a tilted state. However, when pulling the equipment down to tilt it, due to the offset of the gravity of the equipment, the workers often feel a force in the opposite direction of the pulling force, and this force will hinder the workers from dragging the equipment to move in a tilted state and may cause injury to the workers or cause damage to the equipment by mistake. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a towing mobile box and equipment, which can make the center of gravity of the equipment biased towards the roller assembly when the equipment is in a stationary state, thereby reducing the force generated when the user drags the equipment to tilt and slide in the opposite direction of the user's force, making it easier for the user to shift the center of gravity of the equipment and use the roller assembly as a support to drag the equipment to move, thereby improving safety performance.

[0005] According to the first aspect of the utility model, a towing mobile box includes: a shell; a support assembly, which is arranged at the rear end below the shell; and a roller assembly, which is rotatably arranged at the front end below the shell, wherein the roller assembly can support the shell and move the shell, and the shell can be supported by the support assembly and the roller assembly to be placed still on a plane, wherein, when placed still on a plane, the center of gravity of the shell is relatively close to the support point of the roller assembly compared to the support point of the support assembly.

[0006] A towing mobile box and device according to an embodiment of the utility model has at least the following beneficial effects:

[0007] The utility model discloses a towable mobile box, wherein a roller assembly is provided at the front end below the shell body and a support assembly is provided at the rear end below the shell body. When the box body needs to be placed statically on a plane, the shell body can be placed statically on the plane under the cooperative support of the roller assembly and the support assembly, and compared with the support point of the roller assembly and the support point of the support assembly, the center of gravity of the shell body is relatively close to the support point of the roller assembly at this time; when the box body needs to be moved, the staff only needs to apply a smaller pulling force to the box body to enable the center of gravity of the shell body to shift downward relative to the static state and use the roller assembly as a support to drag the shell body to move. Therefore, the utility model can make the center of gravity of the device biased towards the roller assembly when the device is in a static state, thereby reducing the force opposite to the force applied by the user when the user drags the device to tilt and slide, making it easier for the user to shift the center of gravity of the device and use the roller assembly as a support to drag the device to move, thereby improving safety performance.

[0008] According to some embodiments of the present utility model, the shell is in a rectangular parallelepiped shape, and the roller assembly is arranged at the intersection of the bottom surface of the shell and the side surface of the shell.

[0009] According to some embodiments of the utility model, a baffle is further provided, the roller assembly includes two rollers, the two rollers are respectively located on both sides of the intersection, the baffle is arranged at the front end below the shell and is located between the two rollers, when the two rollers drag the shell to move, the baffle can at least block part of the gap between the shell and the plane.

[0010] According to some embodiments of the present invention, the blocking member includes a storage frame with an opening facing upward.

[0011] According to some embodiments of the present invention, the blocking member is detachably connected to the shell.

[0012] According to some embodiments of the utility model, the shell is in the shape of a rectangular parallelepiped. When placed still on a plane, the support assembly and the roller assembly can cooperate to support the shell so that the shell tilts from the bottom end of the rear end of the shell to the top end of the rear end of the shell toward the side where the roller assembly is located.

[0013] According to some embodiments of the utility model, an armrest assembly is further included, wherein the armrest assembly is arranged above the shell, and the support point of the roller assembly is relatively close to the support point of the support assembly compared with the support point of the support assembly.

[0014] According to some embodiments of the utility model, it also includes a first snap-on assembly, which includes a first snap-on plate and a second snap-on plate. The shell includes at least a first shell and a second shell. The first shell encloses the side and bottom of the shell. One side of the first shell is connected to one side of the second shell. The first snap-on plate is arranged on the other side of the first shell, and the second snap-on plate is arranged on the other side of the second shell. The second snap-on plate is snapped with the first snap-on plate so that the second shell is connected to the first shell to form the top of the shell.

[0015] According to some embodiments of the utility model, it also includes a support plate and at least two groups of second snap-fit ​​assemblies, the two groups of the second snap-fit ​​assemblies each include a third snap-fit ​​plate and a fourth snap-fit ​​plate, a accommodating cavity is provided in the shell, the support plate is located in the accommodating cavity, the two groups of the third snap-fit ​​plates are respectively provided on both sides of the first shell and the two groups of the third snap-fit ​​plates are both located in the accommodating cavity, the two groups of the fourth snap-fit ​​plates are respectively provided on both sides of the support plate, the two groups of the fourth snap-fit ​​plates are correspondingly snapped with the two groups of the third snap-fit ​​plates one by one so that the support plate is fixedly provided on the first shell.

[0016] A device according to an embodiment of the second aspect of the utility model includes a towing mobile box as described in any of the above embodiments.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a first overall schematic diagram of one embodiment of a towing and moving box and equipment of the utility model;

[0020] Figure 2 It is a schematic diagram of a static state of one embodiment of a towing mobile box and equipment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a roller assembly and a stopper of one embodiment of a towing and moving box and equipment of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded case of one embodiment of a towing and moving case and equipment of the utility model;

[0023] Figure 5It is a second overall schematic diagram of one embodiment of a towing and moving box and equipment of the utility model;

[0024] Figure 6 for Figure 5 Sectional view of section A-A;

[0025] Figure 7 It is an enlarged schematic diagram of local B;

[0026] Figure 8 This is an enlarged schematic diagram of local C.

[0027] Figure markings: shell 100; first shell 110; first panel 111; second panel 112; third panel 113; second shell 120; support plate 130; support assembly 200; friction-enhancing structure 210; roller assembly 300; first roller 310; second roller 320; connecting structure 400; first connecting member 410; second connecting member 420; third connecting member 430; fourth connecting member 440; armrest assembly 500; anti-slip pattern structure 510; stopper 600; through hole 610; first buckle plate 710; second buckle plate 720; third buckle plate 810; fourth buckle plate 820; connecting rod 900. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", etc., are based on the orientations 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.

[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 -8, a towing mobile box according to the first aspect of the embodiment of the utility model includes a shell 100, a support assembly 200 and a roller assembly 300, the support assembly 200 is arranged at the rear end below the shell 100, and the roller assembly 300 is rotatably arranged at the front end below the shell 100, the roller assembly 300 can support the shell 100 and make the shell 100 move, and the shell 100 can be supported by the support assembly 200 and the roller assembly 300 to be placed still on a plane, wherein, when placed still on a plane, the support point of the roller assembly 300 is compared with the support point of the support assembly 200, and the center of gravity of the shell 100 is relatively close to the support point of the roller assembly 300.

[0033] It should be noted that in the past, towing boxes generally installed multiple brake wheels at the bottom of the box to facilitate the movement of the box or keep it stationary. If the movement state of the box needs to be changed, the staff often needs to open or close the brake devices on each brake wheel one by one, which is relatively cumbersome. However, by using the method of matching the roller assembly 300 and the support assembly 200, there is no need to set a brake device on the roller assembly 300. The support assembly 200 can enhance the friction to prevent the box from sliding, which is convenient for the staff to use and saves the cost of using the brake device. It is also more durable.

[0034] like Figure 2 As shown, in some embodiments of the utility model, the support assembly 200 includes at least one support frame, and a friction-enhancing structure 210 is provided at the bottom end of the support frame to enhance friction, so that when the box needs to remain stationary, it can be more stably placed on a plane and is not easily pushed by external forces, wherein the friction-enhancing structure 210 includes a non-slip sponge foot pad or a metal foot pad engraved with a concave and convex pattern.

[0035] In some embodiments of the present invention, the support assembly 200 includes a first support column and a second support column, one end of the first support column or one end of the second support column is connected to the shell 100 and the side surface of the column of the first support column is provided with a first spiral pattern, the other end of the second support column is provided with an annular groove coaxially arranged with the second support column, the inner diameter of the annular groove is the same as the diameter of the first support column and the wall surface of the annular groove is provided with a second spiral pattern, the other end of the first support column can be connected to the other end of the thread of the second support column through the first spiral pattern and the second spiral pattern, so that the staff can adjust the height of the support assembly 200 according to actual parameters, such as the weight and shape of the box or the size of the roller in the roller assembly 300, so that when the box is placed on a plane, the center of gravity of the shell 100 is relatively close to the support point of the roller assembly 300 compared with the support point of the support assembly 200.

[0036] like Figure 1 , Figure 2 , Figure 3 As shown, in some embodiments of the present invention, the shell 100 is in the shape of a rectangular parallelepiped, and the roller assembly 300 is arranged at the intersection of the bottom surface of the shell 100 and the side surface of the shell 100, so as to avoid friction between the bottom surface of the shell 100 and the side surface of the shell 100 and the plane when the staff drags the box, resulting in scratches on the plane and damage to the shell 100.

[0037] like Figure 1 , Figure 3 , Figure 4 As shown, in some embodiments of the utility model, a stopper 600 is further provided, and the roller assembly 300 includes two rollers, which are respectively located on both sides of the intersection, and the stopper 600 is arranged at the front end below the shell 100 and between the two rollers. When the two rollers drag the shell 100 to move, the stopper 600 can at least block part of the gap between the shell 100 and the plane, thereby preventing the staff from accidentally putting their feet into the gap between the bottom of the shell 100 and the plane when dragging the box to move, causing the feet to be crushed and injured, and also preventing the bottom of the shell 100 from being scratched by obstacles on the plane during the movement.

[0038] like Figure 3 As shown, the two rollers are respectively a first roller 310 and a second roller 320, and the first roller 310 and the second roller 320 have the same parameters as those of the second roller 320 in terms of size, shape, etc., and the first roller 310 and the second roller 320 are symmetrically arranged on both sides of the shell 100 with the center axis of the shell 100 from top to bottom as the axis of symmetry, so that the forces acting on the first roller 310 and the second roller 320 can be kept balanced.

[0039] like Figure 1 , Figure 3 , Figure 4 As shown, in some embodiments of the present invention, a connecting structure 400 and a connecting rod 900 are further included. The roller assembly 300 includes a roller, and the roller is connected to the housing 100 through the connecting rod 900 and the connecting structure 400. The connecting structure 400 includes a first connecting member 410, a second connecting member 420, a third connecting member 430 and a fourth connecting member 440. A through hole is provided in the middle of the roller, and the connecting rod 900 is passed through the through hole. One end of the first connecting member 410 is connected to one end of the connecting rod 900 and one end of the second connecting member 420 is connected to the other end of the connecting rod 900 so that the roller is sleeved on the connecting rod 900. One end of the fourth connecting member 440 is connected to the other end of the first connecting member 410 and the other end of the fourth connecting member 440 is connected to the second connecting member 4 20, one end of the third connecting member 430 is arranged on the fourth connecting member 440 and the other end of the third connecting member 430 is connected to the shell 100, so that the roller can be fixed and the angle between the bottom of the shell 100 and the plane when the roller assembly 300 and the support assembly 200 cooperate to support the shell 100 can be fixed, so that the box body can always be placed still on the plane when the roller assembly 300 and the support assembly 200 cooperate to support the shell 100, and the roller can also be extended to the side of the shell 100, instead of being limited to being set on the bottom surface of the shell 100, which can better adapt to shells 100 of different shapes and different weights, and it is easier to meet the requirement of making the center of gravity of the shell 100 equivalent to the support point of the support assembly 200 close to the support point of the roller assembly 300.

[0040] The roller assembly 300 includes a plurality of rollers, a plurality of connection structures 400 and a plurality of connection rods 900, the plurality of connection structures 400 are connected to the plurality of connection rods 900 in a one-to-one correspondence, and the plurality of rollers are connected to the plurality of connection structures 400 in a one-to-one correspondence.

[0041] like Figure 1 , Figure 3 , Figure 4 As shown, in some embodiments of the utility model, the baffle 600 includes a storage frame with an upward opening, so that the baffle 600 can block part of the gap between the shell 100 and the plane when the box slides, and can also place common tools such as power cords, plugs, cleaning brushes, etc., for the convenience of use by staff.

[0042] In addition, the power interface end on the housing 100 can also be arranged around the storage basket to facilitate the staff to organize and store the power cord and plug.

[0043] Among them, Figure 3As shown, the bottom of the storage basket is also provided with a plurality of through holes 610 penetrating the upper and lower ends of the bottom, so as to facilitate the staff to clean the storage basket and prevent dust accumulation, and the through holes 610 can also timely drain the water in the storage basket to prevent water accumulation, thereby reducing the risk of water in the storage basket flowing into the shell 100 and causing damage to the internal mechanical structure or circuit structure.

[0044] In some embodiments of the present invention, the blocking member 600 is detachably connected to the housing 100 so that the staff can flexibly install or replace the blocking member 600 according to actual needs.

[0045] The blocking member 600 and the housing 100 may be connected by bolts or snaps to achieve the purpose of being detachable.

[0046] like Figure 1 , Figure 3 , Figure 4 As shown, when the baffle 600 is connected to the shell 100 by bolts, the box body also includes a bolt structure, wherein the bolt structure includes a screw and a nut, a first connecting hole is provided at the end of the baffle 600 that is in contact with the shell 100, a second connecting hole is provided on the shell 100, the bolts are passed through the first connecting hole and the second connecting hole, and the nut is sleeved on the end of the screw where the nut is not provided to make the baffle 600 and the shell 100 fit tightly, when the baffle 600 needs to be disassembled or replaced, the staff only needs to unscrew the screw with a screwdriver to perform the disassembly or replacement operation.

[0047] Among them, in order to enable the baffle 600 to be fixed on the shell 100 when connected with the shell 100, at least two groups of first connecting holes should be set on the baffle 600, the number of second connecting holes set on the shell 100 should be the same as the number of first connecting holes, and the multiple groups of second connecting holes can be respectively corresponding to the multiple groups of first connecting holes one by one, the number of bolt structures is also the same as the number of first connecting holes, and the multiple bolt structures are respectively corresponding to the multiple groups of first connecting holes and the multiple groups of second connecting holes.

[0048] In addition, when the baffle 600 is connected to the shell 100 by snapping, a protrusion is provided on the shell 100 and a third connecting hole or a groove is provided on the protrusion, and a connecting block is provided on the baffle 600. The connecting block can be sleeved on the third connecting hole or the connecting block can be snapped into the groove to connect the baffle 600 to the shell 100, thereby facilitating the staff to install or remove the baffle 600 according to actual needs.

[0049] In some embodiments of the utility model, the shell 100 is in the shape of a rectangular parallelepiped. When placed still on a plane, the support assembly 200 and the roller assembly 300 can cooperate to support the shell 100 so that the shell 100 is tilted from the bottom end of the rear end of the shell 100 to the top end of the rear end of the shell 100 toward the side where the roller assembly 300 is located, so that the center of gravity of the shell 100 is close to the support point of the roller assembly 300 relative to the support point of the support assembly 200, thereby reducing the force in the opposite direction of the force applied by the staff when the staff drags the box to tilt and slide, so as to facilitate the staff to pull the box to move and improve safety.

[0050] In some embodiments of the present invention, an armrest assembly 500 is further included. The armrest assembly 500 is arranged above the shell 100. Compared with the support point of the roller assembly 300 and the support point of the support assembly 200, the armrest assembly 500 is relatively close to the support point of the roller assembly 300, so that the staff can apply force to pull the box.

[0051] It should be noted that the armrest assembly 500 includes at least one support rod and a pull rod, one end of the support rod is arranged on the shell 100 and the other end of the support rod is connected to the pull rod. The staff can apply force to the box through the pull rod to drag the box to move, wherein the pull rod is also provided with an anti-slip structure 510 to enhance friction, making it easier for the staff to pull the box to move.

[0052] The anti-slip pattern structure 510 includes a concave-convex pattern engraved on the pull rod or an anti-slip sleeve sleeved on the pull rod.

[0053] like Figure 6 , Figure 7 As shown, in some embodiments of the utility model, a first snap assembly is also included, and the first snap assembly includes a first snap plate 710 and a second snap plate 720. The shell 100 includes at least a first shell 110 and a second shell 120. The first shell 110 encloses and forms the side and bottom of the shell 100. One side of the first shell 110 is connected to one side of the second shell 120. The first snap plate 710 is arranged on the other side of the first shell 110, and the second snap plate 720 is arranged on the other side of the second shell 120. The second snap plate 720 is snapped with the first snap plate 710 so that the second shell 120 is connected to the first shell 110 to form the top of the shell 100, so that the staff can easily open the second shell 120 to place or take out items into the shell 100, which is more flexible and practical.

[0054] Among them, the first shell 110 includes a first panel 111, a second panel 112 and a third panel 113. The first panel 111 and the second panel 112 are both "n"-type panels and the first panel 111 and the second panel 112 are combined to form the side of the shell 100. The third panel 113 is respectively connected to the bottom end of the first panel 111 and the bottom end of the second panel 112 to form the bottom surface of the shell 100. The second shell 120 is respectively connected to the top end of the first panel 111 and the top end of the second panel 112. This shell 100 formed by multiple panels is more flexible and is convenient for staff to install and repair internal facilities.

[0055] like Figure 6 , Figure 8 As shown, in some embodiments of the utility model, a support plate 130 and at least two groups of second snap-fit ​​assemblies are further included, and the two groups of second snap-fit ​​assemblies each include a third snap-fit ​​plate 810 and a fourth snap-fit ​​plate 820. A receiving cavity is provided in the shell 100, and the support plate 130 is located in the receiving cavity. The two groups of third snap-fit ​​plates 810 are respectively provided on both sides of the first shell 110 and the two groups of third snap-fit ​​plates 810 are both located in the receiving cavity. The two groups of fourth snap-fit ​​plates 820 are respectively provided on both sides of the support plate 130. The two groups of fourth snap-fit ​​plates 820 are correspondingly snapped with the two groups of third snap-fit ​​plates 810 one by one so that the support plate 130 is fixedly provided on the first shell 110, thereby facilitating the installation or removal of the support plate 130. Moreover, the provision of the support plate 130 in the receiving cavity also facilitates the installation of a mechanical structure or a circuit structure in the receiving cavity. The support plate 130 can also enhance the stability of the shell 100, so that the shell 100 is not easily deformed.

[0056] The utility model discloses a towable mobile box, wherein a roller assembly 300 is provided at the front end below a shell body 100, and a support assembly 200 is provided at the rear end below the shell body 100. When the box body needs to be placed on a plane, the shell body 100 can be placed on the plane under the support of the roller assembly 300 and the support assembly 200, and the support point of the roller assembly 300 is compared with the support point of the support assembly 200. At this time, the center of gravity of the shell body 100 is relatively close to the support point of the roller assembly 300; when the box body needs to be moved, the staff only needs to apply a smaller pulling force to the box body to make the center of gravity of the shell body 100 shift downward relative to the static state and use the roller assembly 300 as a support to drag the shell body 100 to move. Therefore, the utility model can make the center of gravity of the device in a static state deviate toward the roller assembly 300, thereby reducing the force opposite to the direction of the user's force applied when the user drags the device to tilt and slide, making it easier for the user to shift the center of gravity of the device and use the roller assembly 300 as a support to drag the device to move, thereby improving safety performance.

[0057] According to a second aspect of the utility model, an embodiment of the utility model provides a device, comprising a towing mobile box according to any one of the above-mentioned first aspects.

[0058] For the remaining specific description of the device, please refer to the embodiment of the first aspect of the utility model, which will not be repeated here.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A towing mobile box, characterized in that: include: case; A support assembly, arranged at a rear end below the housing; A roller assembly is rotatably arranged at the front end below the shell, the roller assembly can support the shell and make the shell move, and the shell can be supported by the support assembly and the roller assembly to be placed still on a plane, wherein, when placed still on the plane, the support point of the roller assembly is compared with the support point of the support assembly, and the center of gravity of the shell is relatively close to the support point of the roller assembly.

2. A towable mobile box according to claim 1, characterized in that: The shell is in a rectangular parallelepiped shape, and the roller assembly is arranged at the intersection of the bottom surface of the shell and the side surface of the shell.

3. A towable mobile box according to claim 2, characterized in that: A baffle is also provided. The roller assembly includes two rollers, and the two rollers are respectively located on both sides of the intersection. The baffle is arranged at the front end below the shell and is located between the two rollers. When the two rollers drag the shell to move, the baffle can at least block part of the gap between the shell and the plane.

4. The towing and moving box according to claim 3, characterized in that: The blocking member comprises a storage frame with an opening facing upward.

5. The towable mobile box according to claim 3, characterized in that: The blocking member is detachably connected to the housing.

6. The towable mobile box according to claim 1, characterized in that: The shell is in the shape of a cuboid. When placed on a plane, the support assembly and the roller assembly can cooperate to support the shell so that the shell tilts from the bottom end of the rear end of the shell to the top end of the rear end of the shell toward the side where the roller assembly is located.

7. The towable mobile box according to claim 1, characterized in that: It also includes an armrest assembly, which is arranged above the shell. Compared with the support point of the roller assembly and the support point of the support assembly, the armrest assembly is relatively close to the support point of the roller assembly.

8. The towable mobile box according to claim 1, characterized in that: It also includes a first snap-on assembly, which includes a first snap plate and a second snap plate. The shell includes at least a first shell and a second shell. The first shell encloses the side and bottom of the shell. One side of the first shell is connected to one side of the second shell. The first snap plate is arranged on the other side of the first shell, and the second snap plate is arranged on the other side of the second shell. The second snap plate is snapped with the first snap plate so that the second shell is connected to the first shell to form the top of the shell.

9. The towable mobile box according to claim 8, characterized in that: It also includes a support plate and at least two groups of second snap-on assemblies, the two groups of the second snap-on assemblies each include a third snap-on plate and a fourth snap-on plate, a accommodating cavity is provided in the shell, the support plate is located in the accommodating cavity, the two groups of the third snap-on plates are respectively provided on both sides of the first shell and the two groups of the third snap-on plates are both located in the accommodating cavity, the two groups of the fourth snap-on plates are respectively provided on both sides of the support plate, the two groups of the fourth snap-on plates are correspondingly snap-connected with the two groups of the third snap-on plates one by one so that the support plate is fixedly provided on the first shell.

10. A device, characterized in that: It comprises a towing movable box as described in any one of claims 1 to 9.

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