Tool box opening and closing supporting arm

Abstract

The utility model relates to the field of toolboxes, in particular to a toolbox opening and closing supporting arm which comprises a toolbox body, an upper cover is rotatably arranged on the upper surface of the toolbox body, supporting arm bodies are symmetrically arranged on the side walls of the two sides of an inner cavity in the upper surface of the toolbox body, and each supporting arm body comprises a mounting plate. A supporting arm is rotationally arranged on one side of a mounting plate body, a limiting shell and a telescopic connecting rod are rotationally mounted at the top of the supporting arm, a connecting base is rotationally arranged at the end of the other side, away from the supporting arm, of the telescopic connecting rod, and the connecting base is mounted on the surface of one side of the upper cover. The connecting seat can be connected with the upper cover, so that when the upper cover is opened, the upper cover can pull the connecting seat, the telescopic connecting rod drives the supporting arm to be opened from a contraction state, and when the upper cover is opened and rotated to a specified angle, the supporting arm cannot be opened after being opened to a certain degree due to the limitation of the limiting shell; therefore, the column upper cover can be supported, a hinge can be effectively replaced to play a supporting role, and the hinge can be effectively prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of tool boxes, in particular to an opening and closing support arm of a tool box. Background Art

[0002] A tool box is a portable storage device that is usually used to store and protect various tools and equipment so that they can be used when needed. It is a versatile and multi-purpose tool collection that can meet a variety of different work needs.

[0003] When it is necessary to take out the tools inside the tool box, it is often necessary to open the upper cover. However, some upper covers only have hinges at the connection points to connect and fix them. Sometimes when taking out the tools, it is impossible to pull out the opened upper cover with one hand, and it can only rely on the hinges to support it in a certain position. It is easy to cause the hinges to break if supported by the hinges for a long time, thereby causing damage to the tool box. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an opening and closing support arm for a tool box.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The toolbox opening and closing support arm comprises a toolbox body, an upper cover is rotatably provided on the upper surface of the toolbox body, a support arm body is symmetrically provided on the side walls on both sides of the inner cavity on the upper surface of the toolbox body, the support arm body comprises a mounting plate, a support arm is rotatably provided on one side of the mounting plate body, a limiting shell and a telescopic connecting rod are rotatably installed on the top of the support arm, a connecting seat is rotatably provided at the end of the telescopic connecting rod on the other side away from the support arm, and the connecting seat is installed on the surface of one side of the upper cover.

[0007] In addition, a preferred structure is that a first rotating rod is provided at the bottom of the supporting arm, and the first rotating rod is rotatably mounted on the mounting plate.

[0008] In addition, the preferred structure is that a second rotating rod is arranged on the top of the support arm, a limiting shell is rotatably arranged on the second rotating rod, a rotating groove is opened at the bottom of the support arm located at the second rotating rod, and the end of one side of the telescopic connecting rod is rotatably arranged in the rotating groove.

[0009] In addition, a preferred structure is that the end of the limiting shell away from the supporting arm is rotatably connected to the connecting seat, and the top end of the supporting arm is arranged in the cavity at the bottom of the limiting shell.

[0010] In addition, a preferred structure is that the telescopic connecting rod is rotatably connected to the connecting seat at the end on the other side away from the rotating groove.

[0011] In addition, a preferred structure is that mounting holes are symmetrically opened on the bottom plate of the connecting seat, a third rotating rod is arranged in the middle of the upper part of the connecting seat body, and the telescopic connecting rod and the limiting shell are rotatably arranged on the third rotating rod.

[0012] The beneficial effects of the utility model are as follows: a support arm main body is installed on the tool box body, and its connecting seat can be connected to the upper cover, so that when the upper cover is opened, the upper cover can pull the connecting seat, so that the telescopic connecting rod drives the support arm to open from the retracted state, and when the upper cover is opened and rotated to a specified angle, the support arm will be unable to open after opening to a certain extent due to the limitation of the limiting shell, thereby achieving the support column upper cover, effectively replacing the hinge to play a supporting role, which can effectively prevent the hinge from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram when the toolbox is opened;

[0014] Figure 2 It is a schematic diagram of the overall structure of the support arm;

[0015] Figure 3 This is a schematic diagram of the structure after the limiting shell of the support arm is removed;

[0016] Figure 4 It is a structural schematic diagram of the limiting housing;

[0017] Figure 5 is a cross-sectional view of the limiting housing;

[0018] Figure 6 Schematic diagram of the structure.

[0019] In the figure: 001 tool box body, 002 upper cover, 003 support arm body, 1 mounting plate, 2 support arm, 21 first rotating rod, 22 second rotating rod, 23 rotating groove, 3 limiting shell, 4 connecting seat, 41 mounting hole, 42 third rotating rod, 5 telescopic connecting rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-6The toolbox opening and closing support arm comprises a toolbox body 001, an upper cover 002 is rotatably provided on the upper surface of the toolbox body 001, and a support arm body 003 is symmetrically provided on the side walls on both sides of the inner cavity on the upper surface of the toolbox body 001, and the support arm body 003 comprises a mounting plate 1, a support arm 2 is rotatably provided on one side of the mounting plate 1, a limiting shell 3 and a telescopic connecting rod 5 are rotatably installed on the top of the support arm 2, and a connecting seat 4 is rotatably provided at the end of the other side of the telescopic connecting rod 5 away from the support arm 2, and the connecting seat 4 is installed on the surface of one side of the upper cover 002.

[0022] In addition, a first rotating rod 21 is provided at the bottom of the supporting arm 2 . The first rotating rod 21 is rotatably mounted on the mounting plate 1 . The first rotating rod 21 is used to support the arm 2 to rotate on the mounting plate 1 .

[0023] Among them, a second rotating rod 22 is arranged on the top of the supporting arm 2, and a limiting shell 3 is rotatably arranged at the second rotating rod 22. A rotating groove 23 is opened at the bottom of the supporting arm 2 located at the second rotating rod 22, and the end of one side of the telescopic connecting rod 5 is rotatably arranged in the rotating groove 23. The second rotating rod 22 is used to realize the rotation of one end of the limiting shell 3.

[0024] Moreover, the end of the limiting shell 3 away from the supporting arm 2 is rotatably connected to the connecting seat 4, and the top end of the supporting arm 2 is arranged in the cavity at the bottom of the limiting shell 3. The limiting shell 3 can limit the rotation angle of the supporting arm 2.

[0025] In addition, the telescopic connecting rod 5 is rotatably connected to the connecting seat 4 at the other end away from the rotating groove 23 .

[0026] In addition, mounting holes 41 are symmetrically opened on the bottom plate of the connecting seat 4, and a third rotating rod 42 is set in the middle of the upper part of the connecting seat 4. The telescopic connecting rod 5 and the limiting shell 3 are rotatably set on the third rotating rod 42, so that the connecting seat 4 can be easily connected to the upper cover 002.

[0027] In this embodiment, when installing the support arm body 003, the mounting plate 1 is mounted on both sides of the cavity on the upper surface of the toolbox body 001, and then the connecting seat 4 is installed and fixed on the surface of the upper cover 002. When the upper cover 002 is opened, the connecting seat 4 is first pulled, and the connecting seat 4 drives the telescopic connecting rod 5 to extend, and the telescopic connecting rod 5 drives the support arm 2 to rotate on the mounting plate 1. During this process, the rod body of the telescopic connecting rod 5 will telescope, and one end of the telescopic connecting rod 5 rotates around the third rotating rod 42 as the axis, and the other end rotates around the rotating groove 23 as the axis. When the support arm 2 moves, once the support arm is opened to a certain angle as a whole, the support arm 2 rotates to a certain angle and is supported by the side wall of the inner cavity at the bottom of the limiting shell 3, so that the opening angle of the support arm 2 is limited to a certain extent. At this time, the support arm 2 cooperates with the limitation of the limiting shell 3 to support and fix the upper cover 002 in one position.

[0028] In the utility model, a support arm body 003 is installed on the tool box body 001, and its connecting seat 4 can be connected to the upper cover 002, so that when the upper cover 002 is opened, the upper cover 002 can pull the connecting seat 4, so that the telescopic connecting rod 5 drives the support arm 2 to open from the contracted state, and when the upper cover 002 is opened and rotated to a specified angle, the support arm 2 will be restricted by the limit shell 3 and cannot be opened after opening to a certain extent, thereby achieving the support column upper cover 002, effectively replacing the hinge to play a supporting role, which can effectively prevent the hinge from being damaged.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A toolbox opening and closing support arm, comprising a toolbox body (001), an upper cover (002) being rotatably arranged on the upper surface of the toolbox body (001), and a support arm body (003) being symmetrically arranged on the side walls of the inner cavity on the upper surface of the toolbox body (001), characterized in that: The support arm body (003) comprises a mounting plate (1), a support arm (2) is rotatably provided on one side of the mounting plate (1), a limit housing (3) and a telescopic connecting rod (5) are rotatably provided on the top of the support arm (2), a connecting seat (4) is rotatably provided at the end of the other side of the telescopic connecting rod (5) away from the support arm (2), and the connecting seat (4) is installed on the surface of one side of the upper cover (002).

2. The tool box opening and closing support arm according to claim 1, characterized in that: A first rotating rod (21) is provided at the bottom of the supporting arm (2), and the first rotating rod (21) is rotatably mounted on the mounting plate (1).

3. The tool box opening and closing support arm according to claim 2, characterized in that: A second rotating rod (22) is arranged at the top of the support arm (2), a limit housing (3) is rotatably arranged at the second rotating rod (22), a rotating groove (23) is provided at the bottom of the support arm (2) located at the second rotating rod (22), and an end of one side of the telescopic connecting rod (5) is rotatably arranged in the rotating groove (23).

4. The tool box opening and closing support arm according to claim 3, characterized in that: The end of the limiting shell (3) away from the supporting arm (2) is rotatably connected to the connecting seat (4), and the top end of the supporting arm (2) is arranged in the cavity at the bottom of the limiting shell (3).

5. The tool box opening and closing support arm according to claim 3, characterized in that: The telescopic connecting rod (5) is rotatably connected to the connecting seat (4) at the end on the other side away from the rotating groove (23).

6. The tool box opening and closing support arm according to claim 5, characterized in that: The bottom plate of the connecting seat (4) is symmetrically provided with mounting holes (41), a third rotating rod (42) is provided in the middle of the upper part of the connecting seat (4), and the telescopic connecting rod (5) and the limiting housing (3) are rotatably arranged on the third rotating rod (42).

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