Downward-turning door storage box

Abstract

A storage box with a flip-down door comprises a box body, a door plate, a first pull rod, a second pull rod and a limiting column. A pick-and-place opening of the box body faces forwards, the lower portion of the door plate is hinged to the lower portion of the box body, and the door plate turns over relative to the box body to cover or open the pick-and-place opening of the box body. The first pull rod and the second pull rod are hinged through a hinge shaft, the other end of the first pull rod is connected with the box body, the other end of the second pull rod is connected with the door plate, and the limiting column is used for limiting the relative unfolding angle of the first pull rod and the second pull rod. The first pull rod and the second pull rod which are hinged to each other are connected with the box body and the door plate respectively, and the door plate cannot be turned over and opened unlimitedly under the action of traction force of the pull rods in the downward turning opening process; and meanwhile, the relative unfolding angle of the first pull rod and the second pull rod is limited by arranging a limiting column, the problem that the first pull rod and the second pull rod are unfolded to be in the flat unfolding state, and consequently blocking exists when the door plate of the storage box is closed subsequently is solved, and the use experience of the flip-down door storage box is overall improved.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a storage box with a downward flip door. Background Art

[0002] The flip-down door storage box is a storage box that flips the door panel from top to bottom. When the door panel is opened downward, the door panel has no traction. If the door panel is not supported after opening, the door panel will directly flip down under the action of gravity and hit the plane supporting the storage box, causing damage to the door panel. If buffer hardware is installed on the door panel, it will require a considerable external pulling force to open the door panel downward. If a traction rod is installed, the storage box will get stuck when the door panel is closed. These situations make this flip-down door storage box difficult to use and not suitable for daily home use. Utility Model Content

[0003] In view of the problems raised by the background technology, the purpose of the utility model is to provide a slow-drop downward flip door storage box, which solves the problem that the existing downward flip door storage box has no opening buffer or is difficult to open.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A downward-flipping door storage box comprises a box body, a door panel, a first pull rod, a second pull rod and a limiting column;

[0006] The access opening of the box body is arranged forward, the lower part of the door panel is hinged to the lower part of the box body, and the door panel is flipped relative to the box body to cover or open the access opening of the box body;

[0007] One end of the first pull rod is hinged to one end of the second pull rod through a hinge shaft, the other end of the first pull rod is connected to the box body, and the other end of the second pull rod is connected to the door panel. The limit column is installed on the box body, and the limit column is used to limit the relative expansion angle of the first pull rod and the second pull rod.

[0008] Preferably, the box body comprises a bottom plate, a top plate, a vertical back plate and two vertical side plates, and the two vertical side plates are respectively vertically arranged at two ends of the bottom plate;

[0009] The other end of the first pull rod is hinged to the vertical side plate, the vertical side plate is equipped with the limiting column, the second pull rod is hinged to the door panel, and the hinge axis of the first pull rod and the second pull rod is perpendicular to the vertical side plate.

[0010] Preferably, the limiting column is located above the hinge axis of the first pull rod and the second pull rod, and the limiting column is located below the first pull rod and the second pull rod when they are in a flat state.

[0011] Preferably, the lengths of the first pull rod and the second pull rod are smaller than the height of the vertical side plate;

[0012] When the door panel is flipped open until the limiting column contacts the first pull rod and / or the second pull rod, the first pull rod forms an angle of 30°-50° with the horizontal line, and the door panel forms an angle of 40°-70° with the vertical line.

[0013] Preferably, a storage compartment is detachably provided in the door panel, and the top of the storage compartment is open.

[0014] Preferably, the storage compartment comprises a bottom support plate, a front panel, a rear panel and at least two side baffles;

[0015] The top of the side baffle is gradually bent downward from front to back to form an arc shape;

[0016] The front panel is detachably mounted on the door panel via screws.

[0017] Preferably, the lower part of the door panel is hinged to the lower part of the box body through a buffer hinge and a force-free hinge.

[0018] Preferably, the buffer hinge comprises a first hinge cup, a first hinge arm, a first upper connecting member, a first lower connecting member and a buffer damper, one end of the first upper connecting member and the first lower connecting member is hinged to the first hinge cup, the other end of the first upper connecting member and the first lower connecting member is hinged to the first hinge arm, the buffer damper is arranged at the bottom of the first hinge arm, and the other end of the first lower connecting member is connected to the buffer damper, so that the buffer damper generates resistance as the first lower connecting member rotates;

[0019] The powerless hinge comprises a second hinge cup, a second hinge arm, a second upper connecting piece and a second lower connecting piece, one end of the second upper connecting piece and the second lower connecting piece is hinged to the second hinge cup, and the other end of the second upper connecting piece and the second lower connecting piece is hinged to the second hinge arm;

[0020] The first hinge cup and the second hinge cup are installed at the lower part of one side of the door panel, and the first hinge arm and the second hinge arm are installed at the front end of the top surface of the bottom plate.

[0021] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0022] By arranging a first pull rod and a second pull rod which are hinged to each other and respectively connecting the box body and the door panel, the door panel is affected by the traction force of the pull rod during the process of being flipped down and opened, and will not flip open indefinitely or even freely fall and hit the supporting surface supporting the storage box to cause damage to the door panel; at the same time, by arranging a limit column to limit the relative expansion angle of the first pull rod and the second pull rod, it is avoided that the first pull rod and the second pull rod are unfolded to a flat state, which causes a jamming problem when the door panel of the storage box is subsequently closed, thereby improving the overall user experience of the flip-down door storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0024] Figure 2 It is an exploded view of an embodiment of the utility model;

[0025] Figure 3 It is a structural diagram of a buffer hinge;

[0026] Figure 4 It is a structural diagram of a forceless hinge.

[0027] Among them: box body 1, bottom plate 11, vertical side plate 12, door panel 2, buffer hinge 3, first hinge cup 31, first hinge arm 32, first upper connecting member 33, first lower connecting member 34, buffer damper 35, powerless hinge 4, second hinge cup 41, second hinge arm 42, second upper connecting member 43, second lower connecting member 44, limiting pull rod assembly 5, first pull rod 51, second pull rod 52, limiting column 53, hinge shaft 54, bottom support plate 61, front panel 62, rear panel 63 and side baffle 64. 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 the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the features.

[0031] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 an indirect connection 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 this utility model can be understood according to specific circumstances.

[0032] The following is combined with Figures 1 to 4 The technical solution of the utility model is further illustrated by specific implementation methods.

[0033] The present application provides a downward-flipping door storage box, comprising a box body 1, a door panel 2, a first pull rod 51, a second pull rod 52 and a limiting column 53;

[0034] The access opening of the box body 1 is arranged forward, the lower part of the door panel 2 is hinged to the lower part of the box body 1, and the door panel 2 is flipped relative to the box body 1 to cover or open the access opening of the box body 1;

[0035] One end of the first pull rod 51 is hinged to one end of the second pull rod 52 through a hinge shaft 54, the other end of the first pull rod 51 is connected to the box body 1, and the other end of the second pull rod 52 is connected to the door panel 2. The limit column 53 is installed on the box body 1, and the limit column 53 is used to limit the relative expansion angle of the first pull rod 51 and the second pull rod 52.

[0036] Since one end of the first pull rod 51 and the second pull rod 52 are hinged, when the door panel 2 covers the opening of the box body 1 to put the storage box in a closed state, the first pull rod 51 and the second pull rod 52 are relatively "folded" in the storage space of the storage box; when the door panel 2 is opened relative to the box body 1, since the other end of the first pull rod 51 is connected to the box body 1, and the other end of the second pull rod 52 is connected to the door panel 2, the door panel 2 is pulled by the first pull rod 51 and the second pull rod 52, and no longer opens indefinitely when flipped open, and even freely falls and hits the supporting surface of the storage box, thereby avoiding damage to the door panel 2. In addition, by setting a limit column 53 to limit the relative expansion angle of the first pull rod 51 and the second pull rod 52, the first pull rod 51 and the second pull rod 52 are prevented from expanding to a flat state (please refer to Figure 1The dotted line shown in the figure) causes a jamming problem when the door panel 2 of the storage box is subsequently closed, which improves the overall user experience of the downward-flipping door storage box.

[0037] Furthermore, the box body 1 includes a bottom plate 11, a top plate, a vertical back plate and two vertical side plates 12, and the two vertical side plates 12 are respectively vertically arranged at both ends of the bottom plate 11;

[0038] The other end of the first pull rod 51 is hinged to the vertical side panel 12 , and the limiting column 53 is installed on the vertical side panel 12 . The second pull rod 52 is hinged to the door panel 2 , and the hinge axes of the first pull rod 51 and the second pull rod 52 are perpendicular to the vertical side panel 12 .

[0039] The bottom plate 11, the top plate, the vertical back plate and the two vertical side plates 12 together form a box body 1 with a stable structure and a certain storage space. Specifically, the end of the first pull rod 51 away from the second pull rod 52 is hinged to the vertical side plate 12 on one side, and the end of the second pull rod 52 away from the second pull rod 51 is hinged to the door panel 2, so that the relative flipping of the first pull rod 51 and the second pull rod 52 when the door panel 2 is flipped open relative to the box body 1 is smoother and more flexible. Further explanation: the hinge axis of the first pull rod 51 and the second pull rod 52 is perpendicular to the vertical side plate 12, which is equivalent to the first pull rod 51, the second pull rod 52 and the limit column 53 The limit assembly is located as a whole in the box body 1 near the side vertical side plate 12. This arrangement makes the internal structure of the storage box relatively compact regardless of whether the door panel 2 is opened or closed, thereby ensuring the internal storage space of the storage box.

[0040] Furthermore, the limiting column 53 is located above the hinge axis of the first pull rod 51 and the second pull rod 52, and the limiting column 53 is located below the first pull rod 51 and the second pull rod 52 when they are in a flat state.

[0041] Since the limit column 53 is used to limit the relative expansion angle of the first pull rod 51 and the second pull rod 52, the limit column 53 is specifically located above the hinge axis of the first pull rod 51 and the second pull rod 52. When the door panel 2 is flipped down, the second pull rod 52 moves with the door panel 2, and the hinge axis connecting the first pull rod 51 and the second pull rod 52 moves upward. When the first pull rod 51 or the second pull rod 52 contacts the limit column 53, the limit column 53 limits the first pull rod 51 or the second pull rod 52 from continuing to move, which is equivalent to limiting the door panel 2 from continuing to flip down and open. Furthermore, since the limit column 53 is located when the first pull rod 51 and the second pull rod 52 are in a flat state (please refer to Figure 1 The dotted line shown in the figure is below the limit column 53, which is equivalent to limiting the first pull rod 51 and the second pull rod 52 from turning over to reach a flat state, thereby avoiding the door closing jam when the door panel 2 is closed later.

[0042] Furthermore, the lengths of the first pull rod 51 and the second pull rod 52 are smaller than the height of the vertical side plate 12;

[0043] When the door panel 2 is flipped open until the limiting column 53 contacts the first pull rod 51 and / or the second pull rod 52, the first pull rod 51 forms an angle of 30°-50° with the horizontal line, and the door panel 2 forms an angle of 40°-70° with the vertical line.

[0044] The length limitation of the first pull rod 51 and the second pull rod 52 prevents the first pull rod 51 and the second pull rod 52 from being too long and unable to be well stored in the storage space of the storage box.

[0045] Through the cooperation between the first pull rod 51, the second pull rod 52 and the limiting column 53, the opening angle between the first pull rod 51 and the second pull rod 52 is limited, so as to avoid jamming when the door panel 2 needs to be closed later after the first pull rod 51 and the second pull rod 52 are fully unfolded. When the first pull rod 51 and the second pull rod 52 reach the position of the limiting column 53 when the door panel 2 is opened, they cannot continue to open. At this time, the angle between the first pull rod 51 and the second pull rod 52 is less than 180°, the angle between the first pull rod 51 and the horizontal line is between 30°-50°, and the opening angle of the door panel 2 relative to the front end of the box body 1 (vertical line) is between 40°-70°, which makes it more convenient to take and put items, and it is more comfortable to close the door panel 2 later without jamming. On the other hand, if a storage compartment is set on the door panel 2, limiting the outward turning angle of the door panel 2 can prevent items from falling out of the storage compartment at the door panel 2.

[0046] Furthermore, a storage compartment is detachably provided in the door panel 2, and the top of the storage compartment is open.

[0047] The door panel 2 is provided with a storage compartment with an open top, which is convenient for taking and placing items from the top opening of the storage compartment after the door panel 2 of the storage box is opened, so that the door panel 2 also has a storage function.

[0048] Furthermore, the storage compartment includes a bottom support plate 61, a front panel 62, a rear panel 63 and at least two side panels 64;

[0049] The top of the side baffle 64 is gradually bent downward from front to back to form an arc shape;

[0050] The front panel 62 is detachably mounted on the door panel 2 via screws.

[0051] The storage compartment is a storage space with an open top, which is composed of a bottom support plate 61, a front panel 62, a rear panel 63 and at least two side baffles 64 on both sides. The top of the side baffles 64 is curved, so that when the door panel 2 is flipped down and opened, the top of the storage compartment will not be blocked by the top plate of the box body 1, and the overall structure is more compact and reasonable.

[0052] Furthermore, the lower part of the door panel 2 is hinged to the lower part of the box body 1 through a buffer hinge 3 and a force-free hinge 4 .

[0053] The powerless hinge 4 allows the door panel 2 to be freely flipped relative to the box body 1, and cooperates with the buffer hinge 3 to provide a buffering effect when closing the door panel 2, so that the door panel 2 can be closed smoothly and slowly. This configuration improves the safety of the storage box and enhances the user's experience; the user does not need to worry about the door panel 2 colliding with the box body 1 due to excessive force when closing the door panel 2, causing loud noise or the items in the door panel storage compartment falling off, which improves the storage safety and comfort of the storage box.

[0054] Furthermore, the buffer hinge 3 includes a first hinge cup 31, a first hinge arm 32, a first upper connecting member 33, a first lower connecting member 34 and a buffer damper 35, one end of the first upper connecting member 33 and the first lower connecting member 34 is hinged to the first hinge cup 31, the other end of the first upper connecting member 33 and the first lower connecting member 34 is hinged to the first hinge arm 32, the buffer damper 35 is arranged at the bottom of the first hinge arm 32, and the other end of the first lower connecting member 34 is connected to the buffer damper 35, so that the buffer damper 35 generates resistance as the first lower connecting member 34 rotates;

[0055] The powerless hinge 4 comprises a second hinge cup 41, a second hinge arm 42, a second upper connecting piece 43 and a second lower connecting piece 44, one end of the second upper connecting piece 43 and the second lower connecting piece 44 is hinged to the second hinge cup 41, and the other end of the second upper connecting piece 43 and the second lower connecting piece 44 is hinged to the second hinge arm 42;

[0056] The first hinge cup 31 and the second hinge cup 41 are installed at the lower portion of one side of the door panel 2 , and the first hinge arm 32 and the second hinge arm 42 are installed at the front end of the top surface of the bottom plate 11 .

[0057] The buffer hinge 3 and the powerless hinge 4 are respectively installed inside the box body 1, making the overall appearance of the storage box more beautiful, and the hinge assembly is arranged in the accommodating space with less impact on the external space. The installation positions of the buffer hinge 3 and the powerless hinge 4 are clear, the first hinge cup 31 and the second hinge cup 41 are installed at the lower part of the door panel 2, and the first hinge arm 32 and the second hinge arm 42 are installed at the front end of the top surface of the bottom plate 11. This design makes the installation process simple and clear, and is also conducive to future maintenance and replacement. Specifically, the buffer hinge 3 slows down the movement speed of the door panel 2 through the resistance generated by the buffer damper 35, thereby achieving a buffering effect of the door panel 2 during the closing process. Furthermore, the buffer damper 35 can be adjusted as needed to achieve precise control of the downward flipping speed of the door panel. This design enables the storage box to adapt to door panels of different weights and sizes and different usage requirements.

[0058] Preferably, the buffer damper 35 may be a cylinder slide and a cylinder, or a rotary damper.

[0059] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A storage box with a downward flip door, characterized in that: It comprises a box body (1), a door panel (2), a first pull rod (51), a second pull rod (52) and a limiting column (53); The access opening of the box body (1) is arranged forward, the lower part of the door panel (2) is hinged to the lower part of the box body (1), and the door panel (2) is turned relative to the box body (1) to cover or open the access opening of the box body (1); One end of the first pull rod (51) and one end of the second pull rod (52) are hinged via a hinge shaft (54); the other end of the first pull rod (51) is connected to the box body (1); the other end of the second pull rod (52) is connected to the door panel (2); the limiting column (53) is installed on the box body (1); the limiting column (53) is used to limit the relative expansion angle of the first pull rod (51) and the second pull rod (52).

2. A downward flip door storage box according to claim 1, characterized in that: The box body (1) comprises a bottom plate (11), a top plate, a vertical back plate and two vertical side plates (12), wherein the two vertical side plates (12) are respectively arranged vertically at two ends of the bottom plate (11); The other end of the first pull rod (51) is hinged to the vertical side panel (12), and the vertical side panel (12) is installed with the limiting column (53). The second pull rod (52) is hinged to the door panel (2), and the hinge axis of the first pull rod (51) and the second pull rod (52) is perpendicular to the vertical side panel (12).

3. The downward-flipping door storage box according to claim 2, characterized in that: The limiting column (53) is located above the hinge axis of the first pull rod (51) and the second pull rod (52), and the limiting column (53) is located below the first pull rod (51) and the second pull rod (52) when they are in a flat state.

4. The downward-flipping door storage box according to claim 3, characterized in that: The lengths of the first pull rod (51) and the second pull rod (52) are smaller than the height of the vertical side plate (12); When the door panel (2) is flipped open until the limiting column (53) contacts the first pull rod (51) and / or the second pull rod (52), the first pull rod (51) forms an angle of 30°-50° with the horizontal line, and the door panel (2) forms an angle of 40°-70° with the vertical line.

5. The downward-flipping door storage box according to claim 4, characterized in that: A storage compartment is detachably provided in the door panel (2), and the top of the storage compartment is open.

6. The downward-flipping door storage box according to claim 5, characterized in that: The storage compartment comprises a bottom support plate (61), a front panel (62), a rear panel (63) and at least two side baffles (64); The top of the side baffle (64) is gradually bent downward from front to back to form an arc shape; The front panel (62) is detachably mounted on the door panel (2) via screws.

7. The downward-flipping door storage box according to claim 6, characterized in that: The lower part of the door panel (2) is hinged to the lower part of the box body (1) via a buffer hinge (3) and a force-free hinge (4).

8. The downward-flipping door storage box according to claim 7, characterized in that: The buffer hinge (3) comprises a first hinge cup (31), a first hinge arm (32), a first upper connecting piece (33), a first lower connecting piece (34) and a buffer damper (35); one end of the first upper connecting piece (33) and the first lower connecting piece (34) are hinged to the first hinge cup (31); the other ends of the first upper connecting piece (33) and the first lower connecting piece (34) are hinged to the first hinge arm (32); the buffer damper (35) is arranged at the bottom of the first hinge arm (32); the other end of the first lower connecting piece (34) is connected to the buffer damper (35), so that the buffer damper (35) generates resistance as the first lower connecting piece (34) rotates; The powerless hinge (4) comprises a second hinge cup (41), a second hinge arm (42), a second upper connecting piece (43) and a second lower connecting piece (44); one end of the second upper connecting piece (43) and the second lower connecting piece (44) are hinged to the second hinge cup (41), and the other ends of the second upper connecting piece (43) and the second lower connecting piece (44) are hinged to the second hinge arm (42); The first hinge cup (31) and the second hinge cup (41) are installed at the lower part of one side of the door panel (2), and the first hinge arm (32) and the second hinge arm (42) are installed at the front end of the top surface of the bottom plate (11).

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