Brake structure for opening storage and transportation box door

Abstract

The utility model discloses a brake structure for opening a box door of a storage and transportation box. The brake structure comprises a rotating seat fixedly connected with a door frame, a brake rod and a bolt seat fixedly connected with the box door, the brake rod comprises a first brake screw rotationally connected with the rotating seat and a second brake screw inserted into the bolt seat, the first brake screw and the second brake screw are connected through an adjusting screw sleeve, thin nuts penetrating through the first brake screw and the second brake screw are arranged at the two ends of the adjusting screw sleeve respectively, and reverse threads are arranged in the adjusting screw sleeve. The overall length of the brake rod is finely adjusted, so that the opening-closing angle of the box door is adjusted; by means of the design, the technical problem that in the opening process of a box door of an existing large weapon storage and transportation packaging box, for example, the box door tends to be closed with a door frame when the box door is opened is solved.

Description

Technical Field

[0001] This utility model relates to the field of weapon transportation, specifically to a braking structure for opening the door of a storage and transportation container. Background Technology

[0002] As the requirements for packaging materials during the transportation and storage of military products become increasingly stringent, traditional packaging materials such as wooden and iron crates suffer from poor mobility, inconvenient loading and unloading, and environmental unfriendliness, failing to meet the packaging requirements of current military products. Therefore, a new generation of storage and transportation packaging boxes—military boxes—has been developed. Military boxes offer more comprehensive packaging for high-tech products in terms of convenience, mobility, and reusability during transportation.

[0003] If the terrain is uneven, the door (200) of the large weapon storage and transportation packaging box will tend to close against the door frame (100) when it is opened, affecting the entry and exit of weapons.

[0004] To address this issue, our company provides a braking structure for opening the doors of storage and transportation containers. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a braking structure for opening the door of a storage and transportation box.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A braking structure for opening the door of a storage and transportation container includes a rotating seat for fixing to the door frame, a brake lever, and a pin seat for fixing to the container door.

[0008] The brake lever includes a first brake screw rotatably connected to the rotating seat and a second brake screw inserted into the pin seat. The first brake screw and the second brake screw are connected by an adjusting screw sleeve. The two ends of the adjusting screw sleeve are respectively provided with thin nuts that are fitted onto the first brake screw and the second brake screw. The adjusting screw sleeve is provided with a reverse thread for finely adjusting the overall length of the brake lever, thereby adjusting the opening and closing angle of the door.

[0009] Preferably, the pin seat is provided with a limiting hole; the second brake screw that is inserted into the pin seat is provided with a rod head, and the rod head is provided with a protrusion that matches the limiting hole.

[0010] Preferably, it also includes a bracket fixed to the door frame for securing the brake lever when the door is closed.

[0011] Preferably, the rotating seat includes a fixed base plate for connecting to the door frame, the top of the fixed base plate is fixed to the rotating table by rivets, a first brake screw is movably embedded in the rotating table, and the rotating table and the first brake screw are rotatably connected by a pin.

[0012] Preferably, the length of the first brake screw is greater than the length of the second brake screw, and the first brake screw is provided with a rubber sleeve that matches the card seat, so that the brake lever is more stable when it is retracted.

[0013] Preferably, the fixed base plate is fixed to the door frame by screws.

[0014] Preferably, the card holder is fixed to the door frame by screws.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When in use, the fixed base plate, rotating table, and pins work together to form a universal joint. The universal structure provides long-distance support between the door frame and the door, preventing the door from sliding due to gravity and opening or closing on its own, which would affect the entry and exit of the contents of the storage box. The telescopic structure of the rod allows the brake lever to freely adjust the opening and closing angle of the door, which is beneficial for use under different working conditions. The bracket allows the brake lever to be folded at the bottom of the door frame when stored, saving space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged view of section A of this utility model;

[0019] Figure 3 This is a cross-sectional view of the rotating seat structure of this utility model.

[0020] In the diagram: 100, door frame; 200, box door; 1, rotating seat; 11, fixed base plate; 12, rotating table; 13, pin; 2, brake lever; 21, first brake screw; 211, rubber sleeve; 22, second brake screw; 221, rod head; 222, protrusion; 23, adjusting screw sleeve; 231, reverse thread; 24, thin nut; 3, pin seat; 4, card seat. Detailed Implementation

[0021] A preferred embodiment of the present invention will now be described in conjunction with the accompanying drawings, providing a clear and complete description of the technical solution in this preferred embodiment.

[0022] A braking structure for opening the door of a storage and transportation box includes a rotating seat 1 for fixing to a door frame 100, a brake rod 2, and a pin seat 3 for fixing to the box door 200. The brake rod 2 includes a first brake screw 21 rotatably connected to the rotating seat 1 and a second brake screw 22 inserted into the pin seat 3. The first brake screw 21 and the second brake screw 22 are connected by an adjusting sleeve 23. The adjusting sleeve 23 has thin nuts 24 at both ends that are respectively fitted onto the first brake screw 21 and the second brake screw 22. The adjusting sleeve 23 has a reverse thread 231 inside, which is used to finely adjust the overall length of the brake rod 2, thereby adjusting the opening and closing angle of the box door 200.

[0023] Specifically, the pin seat 3 is provided with a limiting hole; the second brake screw 22, which is inserted into the pin seat 3, is provided with a rod head 221, and the rod head 221 is provided with a protrusion 222 that matches the limiting hole.

[0024] Through the above design, one end of the brake lever 2 is connected to the bottom of the door frame 100 via a rotating seat 1. In use, the other end of the brake lever 2 is flipped to the door 200 and inserted into the limiting hole of the pin seat 3 to achieve braking. To adjust the opening angle of the door 200, the adjusting sleeve 23 can be rotated. The two sections of the first brake screw 21 and the second brake screw 22 extend out of the adjusting sleeve 23 in opposite directions, allowing the brake lever 2 to extend and retract, thus changing its length and adjusting the opening angle of the door 200. After the thin nuts 24 at both ends of the adjusting sleeve 23 adjust the first brake screw 21 and the second brake screw 22 into position, tightening the thin nuts 24 secures the first brake screw 21 and the second brake screw 22. When closing the door, the lever head 221 of the brake lever 2 is removed from the pin seat 3 and flipped to the locking seat 4 of the door frame 100 for secure insertion.

[0025] Specifically, it also includes a bracket 4 fixed to the door frame 100 for fixing and supporting the brake rod 2 when the door 200 is closed.

[0026] Specifically, the rotating base 1 includes a fixed base plate 11 for connecting with the door frame 100. The top of the fixed base plate 11 is fixed to the rotating platform 12 by rivets. A first brake screw 21 is movably embedded in the rotating platform 12. The rotating platform 12 and the first brake screw 21 are rotatably connected by a pin 13.

[0027] Through the above design, the card holder 4 allows the brake lever 2 to fold into the bottom of the door frame 100 when stored, saving space. In use, the fixed base plate 11, rotating platform 12, and pin 13 cooperate to form a universal joint, using this universal structure to provide long-distance support between the door frame 100 and the box door 200, preventing the box door 200 from sliding due to gravity, opening or closing on its own, and affecting the entry and exit of the contents of the storage box. It is convenient and efficient to use, allowing for quick installation and positioning, and has a high fault tolerance rate. The telescopic structure of the lever body allows the brake lever 2 to freely adjust the opening and closing angle of the box door 200, facilitating use under different working conditions.

[0028] Specifically, the length of the first brake screw 21 is greater than the length of the second brake screw 22, and the first brake screw 21 is provided with a rubber sleeve 211 that matches the card holder 4, so that the brake lever 2 is more stable when it is retracted.

[0029] Specifically, the fixed base plate 11 is fixed to the door frame 100 by screws.

[0030] Specifically, the card holder 4 is fixed to the door frame 100 by screws.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A braking structure for opening the door of a storage and transportation container, characterized in that, Includes a rotating seat (1) for fixing to the door frame (100), a brake lever (2), and a latch seat (3) for fixing to the box door (200); The brake lever (2) includes a first brake screw (21) rotatably connected to the rotating seat (1) and a second brake screw (22) inserted into the pin seat (3). The first brake screw (21) and the second brake screw (22) are connected by an adjusting sleeve (23). The two ends of the adjusting sleeve (23) are respectively provided with thin nuts (24) that are mounted on the first brake screw (21) and the second brake screw (22). The adjusting sleeve (23) is provided with a reverse thread (231) for finely adjusting the overall length of the brake lever (2) to adjust the opening and closing angle of the door (200).

2. The braking structure for opening the door of a storage and transportation container according to claim 1, characterized in that: The pin seat (3) is provided with a limiting hole; the second brake screw (22) that is inserted into the pin seat (3) is provided with a rod head (221), and the rod head (221) is provided with a protrusion (222) that matches the limiting hole.

3. The braking structure for opening the door of a storage and transportation container according to claim 1, characterized in that: It also includes a bracket (4) fixed to the door frame (100) for fixing the support brake rod (2) when the box door (200) is closed.

4. The braking structure for opening the door of a storage and transportation container according to claim 1, characterized in that: The rotating base (1) includes a fixed base plate (11) for connecting with the door frame (100). The top of the fixed base plate (11) is fixed to the rotating platform (12) by rivets. A first brake screw (21) is movably embedded in the rotating platform (12). The rotating platform (12) and the first brake screw (21) are rotatably connected by a pin (13).

5. The braking structure for opening the door of a storage and transportation container according to claim 3, characterized in that: The length of the first brake screw (21) is greater than the length of the second brake screw (22). The first brake screw (21) is provided with a rubber sleeve (211) that matches the card holder (4), so that the brake lever (2) is more stable when it is retracted.

6. The braking structure for opening the door of a storage and transportation container according to claim 4, characterized in that: The fixed base plate (11) is fixed to the door frame (100) by screws.

7. The braking structure for opening the door of a storage and transportation container according to claim 3, characterized in that: The card holder (4) is fixed to the door frame (100) by screws.

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