A box

Abstract

The present invention relates to a box body, which comprises a main body having an opening at the top thereof; a cover plate for closing the opening, the cover plate having a first side surface and a second side surface angularly connected to the first side surface, and a connecting portion being provided at a portion of the second side surface close to the first side surface; and a hinge device, one end of the hinge device being connected to the connecting portion and the other end of the hinge device being connected to a side portion of the main body. The present invention realizes the opening and closing of the cover plate by providing a hinge device at the side portion of the main body, and has a simple and stable structure and strong versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical design, and in particular to a box. Background Art

[0002] Existing boxes generally realize the opening of the cover by arranging a hinge device connected to the cover at the rear of the box body, such as Figure 1 As shown, the hinge device is usually composed of a hinge base 10, a hinge plate 20 and a hinge shaft 30. The hinge base and the hinge plate are respectively arranged on the axial side of the opening and closing surfaces of the main body of the box and the cover plate, and the hinge shaft is passed through the hinge base and the hinge plate to connect the main body of the box and the cover plate together to realize the opening and closing of the cover plate. This usually requires reserving the positions of the hinge base and the hinge plate on the axial side of the opening and closing surfaces of the main body of the box and the cover plate in advance. Therefore, not only the structure of the main body of the box and the cover plate needs to be changed, but also if there are many components arranged inside and outside the box, they may interfere with the hinge device and affect the installation of the hinge shaft.

[0003] In addition, the hinge shaft in the hinged device is generally long, and it passes through the hinge base and the hinge plate respectively. Due to the need for opening and closing, a gap must be left between the hinge shaft and the hinge base, which is prone to water and dust accumulation, and easily causes the hinge shaft to rust or deform, making the hinge shaft unable to rotate flexibly, making it difficult to open and close the cover, making loud opening and closing noises, and causing the cover to be skewed. Summary of the Invention

[0004] The present invention aims to solve the technical problems in the related art to a certain extent.

[0005] To this end, an object of the present invention is to provide a box that no longer uses a conventional hinge device consisting of a hinge base, a hinge shaft, and a hinge plate, and does not require a reserved installation position at the rear of the box or cover.

[0006] An embodiment of the present invention provides a box, including a main body, wherein the top of the main body is provided with an opening; a cover plate, wherein the cover plate is used to close the opening, the cover plate has a first side surface and a second side surface connected to the first side surface at an angle, and the part of the second side surface close to the first side surface is provided with a connecting portion; a hinge device, wherein one end of the hinge device is connected to the connecting portion, and the other end of the hinge device is connected to the side of the main body.

[0007] Since the hinge device of the box body of the present invention is arranged on the side of the main body of the box body, rather than on the axial side of the opening and closing surface, it does not need to occupy the space inside and at the rear of the cover plate and the box body, and there is no need to change the structure of the cover plate itself, thereby improving the space utilization of the box body and the cover plate; at the same time, the structure of the hinge device is simpler, more stable and more versatile, and can be applied to cover plates of different sizes, thicknesses and shapes.

[0008] In addition, the box according to the above embodiment of the present invention may also have the following additional technical features.

[0009] In some embodiments, the hinge device includes a first connecting rod and a second connecting rod, the second connecting rod includes a first arm and a second arm, the first arm and the second arm are fixedly connected at an angle, one end of the first connecting rod is hinged to the first arm, the other end of the first connecting rod is hinged to the body, and the second arm is hinged to the connecting portion. Thus, when a force is applied to the cover, it can be transmitted to the body of the box through the second connecting rod and the first connecting rod, thereby achieving the opening and closing of the cover.

[0010] In some embodiments, the hinge device further includes a third link and a fourth link, the third link including a third arm and a fourth arm, the third arm and the fourth arm being fixedly connected at an angle, the third arm being hinged to the body, one end of the fourth link being hinged to the connecting portion, and the other end of the fourth link being hinged to the fourth arm. Thus, when a force is applied to the cover, it is transmitted to the body of the box through the fourth link and the third link, thereby achieving opening and closing of the cover.

[0011] In some embodiments, the first link is parallel to the third arm, and the fourth link is parallel to the second arm.

[0012] In some embodiments, the end of the first arm and the end of the second arm are connected to form a first joint, the end of the third arm and the end of the fourth arm are connected to form a second joint, and the first joint and the second joint are hinged. In this way, the stability of the hinge device and the movement consistency of each link of the hinge device can be maintained.

[0013] In some embodiments, the first connecting rod is hinged to the body at a first position, the third arm is hinged to the body at a second position, and a limiting post is provided on the body, the limiting post being positioned between the first position and the second position and adjacent to the second position. Thus, the limiting post can limit the maximum angle of opening of the cover.

[0014] In some embodiments, the height of the hinge center between the fourth link and the fourth arm in the axial direction of the housing does not exceed the height of the hinge center between the first arm and the first link in the axial direction of the housing. Thus, the fourth link, the fourth arm of the third link, the second arm of the second link, and the connecting portion can form a quadrilateral structure. The first link, the first arm of the second link, the third arm of the third link, and the side of the main body can also form a quadrilateral structure, thereby making the movement of the hinge device more stable.

[0015] In some embodiments, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the body, and the cover are hingedly connected by rivets. Using rivets as the pivots at the hinged joints of the components not only simplifies the structure and facilitates installation, but also reduces the contact area with the external environment, is low-cost, and facilitates replacement.

[0016] The beneficial effects of the present invention are: the overall structure of the present invention is compact, and the installation of the hinge device will not be affected by the space limitation of the box body. In addition, the hinge device is a connecting rod mechanism composed of multiple connecting rods to realize the opening and closing of the cover, and the structure is simpler, more stable, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Further features and advantages of the present invention are described in the following description, which explains the present invention in more detail based on an embodiment in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural diagram of the existing box.

[0019] Figure 2 3D is a schematic diagram of the three-dimensional structure of a box according to an embodiment of the present invention (with the cover open).

[0020] Figure 3 yes Figure 2 Magnified view of part A.

[0021] Figure 4 3 is a schematic structural diagram of a first connecting rod according to an embodiment of the present invention.

[0022] Figure 5 3 is a schematic structural diagram of a second connecting rod according to an embodiment of the present invention.

[0023] Figure 6 3 is a schematic structural diagram of a third connecting rod according to an embodiment of the present invention.

[0024] Figure 7 3 is a schematic structural diagram of a fourth connecting rod according to an embodiment of the present invention.

[0025] Figure 8 2 is a schematic structural diagram of a cover plate according to an embodiment of the present invention.

[0026] Figure 9 3 is a schematic structural diagram of a box body with a cover in a closed state according to an embodiment of the present invention.

[0027] Figure 10 3 is a schematic structural diagram of a box body with a cover opened to 90 degrees according to an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] Hinge base 10; hinge plate 20; hinge shaft 30;

[0030] The main body 100, the top 110, the opening 111, the limit post 120;

[0031] The cover plate 200, the first side surface 210, the second side surface 220, the connecting portion 230;

[0032] The hinge device 300, the first connecting rod 310, the second connecting rod 320, the first arm 321, the second arm 322, the first connection point 323, the third connecting rod 330, the third arm 331, the fourth arm 332, the second connection point 333, the fourth connecting rod 340;

[0033] The first position B, the second position C. Detailed implementation manners

[0034] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only and do not limit the present invention.

[0035] Reference Figure 2 , an embodiment of the present invention provides a box body, including a main body 100, an opening 111 is provided on the top 110 of the main body 100; a cover plate 200, the cover plate 200 is used to close the opening 111 of the main body 100, the cover plate 200 has a rear side surface 210 (as an example of the first side surface) and a second side surface 220 connected at an angle to the rear side surface 210, and a connecting portion 230 is provided on a part of the second side surface 220 close to the rear side surface 210; and a hinge device 300, one end of the hinge device 300 is connected to the connecting portion 230, and the other end of the hinge device 300 is connected to the side portion of the main body 100.

[0036] In some embodiments, the second side surface 220 of the cover plate 200 includes two opposite side surfaces, both of which are perpendicularly connected to the rear side surface 210, and the two side surfaces are respectively the left side surface and the right side surface of the cover plate 200.

[0037] The hinge device 300 includes a first connecting rod 310 and a second connecting rod 320, the second connecting rod 320 includes a short arm 321 (as an example of the first arm) and a long arm 322 (as an example of the second arm), the short arm 321 and the long arm 322 are fixedly connected at an angle, one end of the first connecting rod 310 is hinged to the short arm 321 of the second connecting rod 320, the other end of the first connecting rod 310 is hinged to the side portion of the main body 100 of the box body, and the long arm 322 of the second connecting rod 320 is hinged to the connecting portion 230 of the cover plate 200.

[0038] The hinge device 300 further includes a third link 330 and a fourth link 340. The third link 330 includes a short arm 331 (as an example of a third arm) and a long arm 332 (as an example of a fourth arm). The short arm 331 and the long arm 332 are fixedly connected at an angle. The short arm 331 of the third link 330 is hinged to the side of the body 100 of the box body. One end of the fourth link 340 is hinged to the connecting portion 230 of the cover plate 200, and the other end of the fourth link 340 is hinged to the long arm 332 of the third link 330.

[0039] The end of the short arm 321 of the second link 320 is connected to the end of the long arm 322 to form a first joint 323. The end of the short arm 331 of the third link 330 is connected to the end of the long arm 332 to form a second joint 333. The first joint 323 and the second joint 333 are hingedly connected. In this way, the stability of the entire hinge assembly and the consistency of movement of each link of the hinge assembly can be maintained.

[0040] In some embodiments, as Figure 5 As shown, one end of the short arm 321 of the second connecting rod 320 coincides with one end of the long arm 322 and the two largest surfaces of the short arm 321 are coplanar with the two largest surfaces of the long arm 322, that is, the short arm 321 and the long arm 322 are fixedly connected at an angle in the same plane and share the same end, and the angle α formed by the short arm 321 and the long arm 322 is greater than 90 degrees and less than 180 degrees.

[0041] In some embodiments, as Figure 6 As shown, one end of the short arm 331 of the third connecting rod 330 coincides with one end of the long arm 332 and the two largest surfaces of the short arm 331 are coplanar with the two largest surfaces of the long arm 332, that is, the short arm 331 and the long arm 332 are fixedly connected at an angle in the same plane and share the same end, and the angle β formed by the short arm 331 and the long arm 332 is greater than 90 degrees and less than 180 degrees.

[0042] like Figure 3 As shown, the hinge center of the first link 310 and the short arm 321 of the second link 320 is D, that is, the second link 320 can rotate around the hinge center D relative to the first link 310; the hinge center of the first connection point 323 of the short arm 321 and the long arm 322 of the second link 320 and the second connection point 333 of the short arm 331 and the long arm 332 of the third link 330 is E, that is, the second link 320 can rotate around the hinge center E relative to the third link 330; the hinge center of the long arm 332 of the third link 330 and the fourth link 340 is F, that is, the fourth link 340 can rotate around the hinge center F relative to the third link 330.

[0043] like Figure 2As shown, the body 100 of the box is a hollow open structure. Hollow flanges are sleeved at both ends of the body 100. Thus, the flange at the bottom can increase the contact area between the bottom of the box and the ground, making the box more stable when placed; the flange at the top can reinforce the opening of the box.

[0044] As Figure 3 shown, during the opening and closing movement processes of the cover plate 200, the short arm 331 of the first link 310 and the third link 330 always remain parallel, and the long arm 322 of the fourth link 340 and the second link 320 always remain parallel. It can be understood that the long side of the first link 310 is always parallel to the long side of the short arm 331 of the third link 330, and the long side of the fourth link 340 is always parallel to the long side of the long arm 322 of the second link 320.

[0045] In some embodiments, as Figure 3 shown, one end of the first link 310 away from the hinge center D is hinged to the body 100 of the box, and the hinge center is B (as an example of the first position); one end of the long arm 322 of the second link 320 away from the hinge center E is hinged to the cover plate 200 and the hinge center is G; one end of the short arm 331 of the third link 330 away from the hinge center E is hinged to the body 100 of the box, and the hinge center is C (as an example of the second position), and one end of the fourth link 340 away from the hinge center F is hinged to the cover plate 200 and the hinge center is H; that is, the first link 310 and the third link 330 are rotatable relative to the body 100 of the box, and the second link 320 and the fourth link 340 are rotatable relative to the cover plate 200.

[0046] Optionally, as Figure 2 and Figure 3 shown, a limit post 120 is provided on the body 100 of the box. The limit post 120 is a cylinder and is arranged between the hinge center B and the hinge center C and close to the hinge center C. The limit post 120 is a metal post and can be fixed to the body 100 of the box by welding. When the cover plate 200 is opened to a certain angle, the third link 330 contacts the limit post 120, thereby restricting the movement of the hinge device 300, and the cover plate 200 cannot be opened further. It can be understood that this is the maximum angle for the cover plate 200 to open at this time.

[0047] In some embodiments, as Figure 8 shown, the connecting portion 230 of the cover plate 200 extends out of the rear side surface 210 of the cover plate 200.

[0048] In some embodiments, as Figure 8As shown, the cover plate 200 is an integral structure, manufactured by casting and machining. In other embodiments, the connecting portion 230 of the cover plate 200 is a thin plate, welded to the left and right sides of the cover plate 200 and partially extending out of the rear side 210 of the cover plate 200.

[0049] like Figure 3 As shown, the long arm 322 of the second connecting rod 320 is hinged to one end of the connecting portion 230 close to the rear side 210 of the cover plate 200 , and the fourth connecting rod 340 is hinged to one end of the connecting portion 230 away from the rear side 210 of the cover plate 200 .

[0050] In some embodiments, as Figure 3 As shown, the first connecting rod 310, the second connecting rod 320, the third connecting rod 330, the fourth connecting rod 340, the main body 100 of the box and the cover 200 are hinged by rivets, and the rivets are used as the rotating shaft at the hinges between the components. The structure is simple and easy to install. There is no gap between the rivets and the hinges of the components, which can reduce the problem of corrosion of the rotating shaft due to harsh environment.

[0051] In some embodiments, the first link 310 and the fourth link 340 are rectangular thin plates, and the second link 320 and the third link 330 are special-shaped thin plates.

[0052] In some embodiments, the rotating shafts at the hinges of each component of the first connecting rod 310, the second connecting rod 320, the third connecting rod 330, the fourth connecting rod 340, the main body 100 of the box and the cover 200 are slender pins, and are fixed by shaft clamps and cotter pins or round nuts. The slender pins have a small contact area with the external environment, thereby reducing corrosion and rusting of the pins.

[0053] In some embodiments, as Figure 3 As shown, the first link 310, the short arm 321 of the second link 320, the short arm 331 of the third link 330, and the side of the box body 100 form a quadrilateral structure; the long arm 322 of the second link 320, the long arm 332 of the third link 330, and the fourth link 340 form a quadrilateral structure with the connection portion 230 of the cover plate 200. The center planes of the two largest faces of the first link 310 are coplanar with the center planes of the two largest faces of the third link 330; the center planes of the two largest faces of the second link 320 are coplanar with the center planes of the two largest faces of the fourth link 340; and the center planes of the two largest faces of the first link 310 are parallel to the center planes of the two largest faces of the second link 320. In other embodiments, the planes on which the largest faces of the first link 310, the second link 320, the third link 330, and the fourth link 340 lie are parallel to each other.

[0054] In some embodiments, as Figure 3As shown, the left side of the connecting portion 230 is coplanar with the left side of the first link 310 and the left side of the third link 330 . It can be understood that the height of the connecting portion 230 is the same as the thickness of the first link 310 and the third link 330 .

[0055] In some embodiments, as Figure 3 As shown, the hinge center C is close to the rear side of the main body 100 of the box, and the hinge center B is to the right of the hinge center C. During the rotation of the hinge device 300, the height of the hinge center F between the fourth link 340 and the long arm 322 of the third link in the axial direction of the box does not exceed the height of the hinge center D between the short arm 321 of the second link 320 and the first link 310 in the axial direction of the box.

[0056] Optionally, washers are provided between the first link 310 and the main body 100 of the box body, between the first link 310 and the second link 320, between the third link 330 and the main body 100 of the box body, between the third link 330 and the second link 320, between the third link 330 and the fourth link 340, between the second link 320 and the connecting portion 230 of the cover plate 200, and between the fourth link 340 and the connecting portion 230 of the cover plate 200 to protect the surfaces of each component.

[0057] In some embodiments, as Figure 4 As shown, both ends of the first connecting rod 310 are provided with hinge holes for inserting the rotating shaft; Figure 5 As shown, the second connecting rod 320 is provided with three hinge holes for inserting the rotating shaft, two of which are provided at both ends of the second connecting rod 320, and the other is provided at the connection point 323 between the short arm 321 and the long arm 322; Figure 6 As shown, the third connecting rod 330 is provided with three hinge holes for inserting the rotating shaft, two of which are provided at both ends of the third connecting rod 330, and the other is provided at the connection point 333 between the short arm 331 and the long arm 332; Figure 7 As shown, both ends of the fourth connecting rod 340 are respectively provided with hinge holes for inserting the rotating shaft.

[0058] In some embodiments, a handle is provided on the upper end surface of the cover 200 near the front end, or a handle is provided on the front end surface of the cover 200. The handle can apply an upward force to the cover 200 to facilitate opening and closing of the cover 200 and improve convenience of use.

[0059] In some embodiments, as Figure 3 As shown, the rotation base points of the entire hinge 300 are the hinge center B and the hinge center C, and the rotating shaft at the hinge center B and the rotating shaft at the hinge center C are fixed on the main body 100 of the box, that is, the rotating shaft at the hinge center B and the rotating shaft at the hinge center C do not rotate relative to the main body 100 of the box.

[0060] In some embodiments, as Figure 2 As shown, the box body includes two hinge devices 300, and the two hinge devices 300 are symmetrically arranged on the left and right opposite sides of the main body 100 of the box body, that is, one end of the left hinge device 300 is connected to the left connecting part 230 of the cover plate 300, and the other end of the left hinge device 300 is connected to the left side of the main body 100 of the box body; one end of the right hinge device 300 is connected to the right connecting part 230 of the cover plate 300, and the other end of the right hinge device 300 is connected to the right side of the main body 100 of the box body. Controlling the opening and closing of the cover plate 300 by the left and right hinge devices 300 can make the opening and closing of the cover plate 200 more stable.

[0061] The following describes the box according to the present invention. Figure 9 As shown, the cover 200 is closed; Figure 2 As shown, the cover 200 is opened to a certain angle. When the operator applies an upward force to the cover 200, the hinge assembly 300 rotates along the direction of the cover 200 opening, and the hinge assembly 300 rotates at the hinge centers other than the hinge center B and the hinge center C. The rotational force of the cover 200 is transmitted to the second link 320 and the fourth link 340 through the hinge centers G and H respectively. The fourth link 340 transmits the force to the third link 330 through the hinge center F. The third link 330 rotates at the hinge center C. The rotating shaft transmits the force to the main body 100 of the box body, the second connecting rod 320 transmits the force to the first connecting rod 310 through the rotating shaft at the hinge center D, and the first connecting rod 310 transmits the force to the main body 100 of the box body through the rotating shaft at the hinge center B, thereby realizing the opening of the cover 200; when the cover 200 is opened to a certain angle, the third connecting rod 330 contacts the limiting column 120, and the third connecting rod 330 cannot continue to rotate, so that the hinge device 300 cannot continue to move. At this time, the cover 200 is at the maximum opening angle, such as Figure 10 on the contrary, when the operator closes the cover 200, a downward force is applied to the cover 200, and the hinge device 300 follows the cover 200 and rotates in the direction of closing the cover 200, thereby closing the cover 200.

[0062] According to the box body of the present invention, the opening and closing of the cover 200 is achieved by the deformation and rotation of the connecting rod mechanism in the entire hinge device 300, and the structure is simple, stable, reliable and practical. In addition, the same hinge device can be applied to covers of different sizes, thicknesses and shapes by adjusting the position of the hinge center, and has strong versatility.

[0063] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0064] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0066] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A box body, comprising: A main body with an opening at the top thereof; A cover plate for closing the opening, the cover plate having a first side surface and a second side surface angularly connected to the first side surface, and a connecting portion provided at a part of the second side surface close to the first side surface; and A hinge device, one end of the hinge device being connected to the connecting portion, and the other end of the hinge device being connected to a side portion of the main body; Wherein, the hinge device includes a first link, a second link, a third link and a fourth link, the second link includes a first arm and a second arm, the first arm and the second arm are fixedly connected at an angle, one end of the first link is hinged to the first arm, the other end of the first link is hinged to the main body, and the second arm is hinged to the connecting portion; the third link includes a third arm and a fourth arm, the third arm and the fourth arm are fixedly connected at an angle, the third arm is hinged to the main body, one end of the fourth link is hinged to the connecting portion, and the other end of the fourth link is hinged to the fourth arm; the first link is parallel to the third arm, and the fourth link is parallel to the second arm; an end of the first arm and an end of the second arm are connected to form a first connection point, an end of the third arm and an end of the fourth arm are connected to form a second connection point, and the first connection point and the second connection point are hinged; the first link is hinged to the main body at a first position, the third arm is hinged to the main body at a second position, a limiting post is provided on the main body, the limiting post is arranged between the first position and the second position and is close to the second position; the height of the hinge center of the fourth link and the fourth arm in the axial direction of the box body does not exceed the height of the hinge center of the first arm and the first link in the axial direction of the box body.

2. The box according to claim 1, characterized in that, The first link, the second link, the third link, the fourth link, the main body and the cover plate are hinged by rivets.

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