Automatic opening and closing device for door frame of special container

Abstract

The utility model discloses an automatic opening and closing device for a special container door frame. Comprising a body, a self-opening-closing mechanism and a non-return mechanism. The body is welded to a container door frame, and the automatic opening and closing mechanism is arranged on a container side plate. The body comprises fixing blocks and locking pieces, the locking pieces are arranged on the fixing blocks, the fixing blocks are connected with a side plate of the container through the locking pieces, the fixing blocks are symmetrically arranged, a lock hole is formed in a gap between the fixing blocks, mounting grooves are formed in the fixing blocks, the non-return mechanism is telescopically arranged in the mounting grooves, and the non-return mechanism is arranged towards the direction of the lock hole; the self-opening and closing mechanism structurally adapts to the lock hole, the self-opening and closing mechanism makes contact with the non-return mechanism in the lock hole, and the self-opening and closing mechanism and the non-return mechanism are matched to adjust the opening and closing state of the self-opening and closing mechanism through relative displacement between the self-opening and closing mechanism and the lock hole; the locking piece controls the relative position between the lock hole and the automatic opening and closing mechanism. The door frame and the side plates can be conveniently and rapidly opened and closed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to container transportation technical field, especially relates to a special container door frame automatic opening and closing device. BACKGROUND

[0002] At present, international trade is not balanced, and the cargo volume from Asia to Europe and America is much larger than the cargo volume from Europe and America to Asia, when the ship returns from Europe and America, there are a lot of empty containers on the ship, which causes great waste of energy and transport resources.

[0003] In order to save cost and reduce energy consumption, people design a detachable container, which can be stacked into thin pieces to reduce the occupation of cabin space. When the container door frame is stacked, the existing locking device cannot lock the container door frame well, which causes the container door frame to shake and impact during transportation, causing damage to the container door frame. How to design a locking device that can lock the detachable container door frame and can be easily opened is a problem to be solved.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art that is publicly known. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a special container door frame automatic opening and closing device, so as to overcome the defects in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a special container door frame automatic opening and closing device, which comprises a body, a self-opening and closing mechanism and a check mechanism. The body is welded on the container door frame, the self-opening and closing mechanism is arranged on the container side plate, the body comprises a fixed block and a locking piece, the locking piece is arranged on the fixed block, the fixed block is connected with the container side plate through the locking piece, the fixed block is symmetrically arranged, the gap between the fixed blocks forms a lock hole, an installation groove is arranged in the fixed block, the check mechanism is telescopically arranged in the installation groove, and the check mechanism is arranged towards the lock hole. The structure of the self-opening and closing mechanism is adapted to the lock hole, the self-opening and closing mechanism and the check mechanism are in contact in the lock hole, the relative displacement between the self-opening and closing mechanism and the lock hole is adjusted, the self-opening and closing mechanism and the check mechanism cooperate to adjust the opening and closing state of the self-opening and closing structure, and the relative position between the lock hole and the self-opening and closing mechanism is controlled by the locking piece.

[0007] Preferably, in the technical scheme, the check mechanism comprises a spring and a check pin, the spring is arranged in the installation groove, the check pin is connected with the spring, the front end of the check pin extends into the lock hole, and the front end of the check pin is a wedge surface.

[0008] Preferably, in the technical scheme, the self-opening and closing mechanism comprises a positioning pin and a retreat block, the positioning pin is arranged on the container side plate, a lock head is arranged at the front end of the positioning pin, the size of the lock head is matched with the size of a lock hole, the front end of the lock head is symmetrically provided with an inclined surface, the structure of the inclined surface is matched with the wedge surface at the front end of the check pin, the retreat block is slidably sleeved on the positioning pin, and the structure of the retreat block is reversely arranged with the structure of the lock head.

[0009] Preferably, in the technical scheme, when the self-opening and closing mechanism is in the closed state, the bottom surface of the lock head is abutted against the top surface of the two check pins, and the container door frame is locked with the container side plate; when the self-opening and closing mechanism is in the opened state, the lock head is located in the lock hole below the check pin, and the container door frame is not locked with the container side plate.

[0010] Preferably, in the technical scheme, the locking piece is a safety screw, the safety screw is arranged in the fixing block, and the bottom of the safety screw is connected with the container side plate.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] The door frame and the side plate can be conveniently locked after being folded through the automatic opening and closing device, and the shaking of the door frame and the side plate in the transportation process is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structure schematic view of the locking state of the automatic opening and closing device of the special container door frame.

[0014] Fig. 2 It is a structure schematic view of the opening state of the automatic opening and closing device of the special container door frame. DETAILED DESCRIPTION

[0015] The specific embodiments of the utility model are described in detail below, but it should be understood that the protection scope of the utility model is not limited by the specific embodiments.

[0016] Unless otherwise clearly indicated, in the entire specification and claims, the term "comprise" or its variants such as "contain" or "include" and the like shall be understood as including the stated elements or components, and excluding other elements or components.

[0017] As Figs. 1-2The utility model discloses a special container door frame automatic opening and closing device, including body, self -opening and closing mechanism, check mechanism, the body is welded on the container door frame, the self -opening and closing mechanism sets up on the container sideboard 10, the body includes fixed block 1, safety screw 2, safety screw 2 sets up on fixed block 1, and safety screw 2 passes through fixed block 1, and safety screw 2 bottom is connected with container sideboard 10, and fixed block 1 is symmetrically arranged, and the gap between fixed block 1 forms lock hole 3, and fixed block 1 is provided with mounting groove 4, the check mechanism includes spring 5, check pin 6, spring 5 sets up in mounting groove 4, and check pin 6 is connected with spring 5, and check pin 6 front end extends to lock hole 3, and check pin 6 front end is wedge face,

[0018] The self -opening and closing mechanism includes positioning pin 7, and the positioning pin 7 is provided with lock head 9 on the container sideboard 10, and the lock head 9 size is matched with the size of lock hole 3, and the lock head 9 front end is symmetrically provided with inclined plane, and the inclined plane structure is matched with the wedge face of check pin 6 front end, and the positioning pin 7 is slidably fitted with the retreat block 8, and the structure of retreat block 8 is reversely arranged with the structure of lock head 9.

[0019] When the container door frame and sideboard 10 are folded, the fixed block 1 is moved to the sideboard 10, in the moving process, the positioning pin 7 gradually enters the lock hole 3, the lock head 9 is in contact with the wedge face of check pin 6 front end, then the lock head 9 pushes away check pin 6, and the two check pins 6 are pushed to the mounting groove 4 on the two sides respectively, when the lock head 9 moves to the position of lock hole 3 above check pin 6, check pin 6 is reset under the drive of spring 5, and the two check pins 6 resist the positioning pin 7, and the bottom surface of lock head 9 is placed on the top surface of the two check pins 6, then the safety screw 2 is tightened, the distance between fixed block 1 and sideboard 10 is fixed, and then the position of positioning pin 7 and check pin is fixed, and the container door frame is locked with the container sideboard 10, when the door frame and sideboard 10 need to be opened, the safety screw 2 is loosened, the fixed block 1 continues to move to the sideboard 10, the retreat block 8 gradually contacts with the wedge face of check pin 6, the retreat block 8 pushes the two check pins 6 to the mounting groove 4 on the two sides respectively, the check pin 6 is separated from the lock head 9, the self -opening and closing mechanism is opened, the door frame is lifted together with the body, and the container door frame is separated from the container sideboard 10 and opened.

[0020] Through the automatic opening and closing device, the door frame and sideboard can be locked and opened conveniently and quickly after the container door frame and sideboard are folded, and the shaking of the door frame and sideboard during transportation is prevented.

[0021] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to limit the application to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various exemplary embodiments with various modifications being applicable. The scope of the application is intended to be defined by the claims and their equivalents.

Claims

1. A special container door frame automatic opening and closing device, characterized in that: The utility model relates to a self -opening and closing mechanism for container door frame, including body, self -opening and closing mechanism, check mechanism, the body is welded on container door frame, the self -opening and closing mechanism sets up on container side plate, the body includes fixed block, locking piece, locking piece sets up on fixed block, and fixed block is connected with container side plate through locking piece, and fixed block is symmetrically set up, and the gap between fixed block forms lock hole, and fixed block is provided with installation slot, the check mechanism is set up in the installation slot in the telescopic mode, and the check mechanism is set up to the lock hole direction, the self -opening and closing mechanism structure is adapted to lock hole, and the self -opening and closing mechanism contacts with check mechanism in lock hole, and through the relative displacement between the self -opening and closing mechanism and lock hole, the self -opening and closing mechanism and check mechanism cooperate and adjust the opening and closing state of self -opening and closing structure, and the locking piece controls the relative position between lock hole and the self -opening and closing mechanism.

2. The automatic opening and closing device for the door frame of a special container according to claim 1, characterized in that: The check mechanism includes spring and check pin, the spring is arranged in the installation slot, the check pin is connected with the spring, the front end of the check pin extends to the lock hole, and the front end of the check pin is a wedge surface.

3. The automatic opening and closing device for the door frame of a special container according to claim 2, characterized in that: The self -opening and closing mechanism includes positioning pin and retreat block, the positioning pin is arranged on the container side plate, the front end of the positioning pin is provided with a lock head, the size of the lock head is matched with the size of the lock hole, the front end of the lock head is symmetrically provided with an inclined surface, the inclined surface structure is matched with the wedge surface of the front end of the check pin, the retreat block is slidably sleeved on the positioning pin, and the structure of the retreat block is reversely arranged with the structure of the lock head.

4. The automatic opening and closing device for the door frame of a special container according to claim 3, characterized in that: When the self -opening and closing mechanism is in the closed state, the bottom surface of the lock head is abutted on the top surface of the two check pins, and the container door frame is locked with the container side plate, when the self -opening and closing mechanism is in the open state, the lock head is located in the lock hole below the check pin, and the container door frame is not locked with the container side plate.

5. The automatic opening and closing device for the door frame of a special container according to claim 1, characterized in that: The locking piece is a safety screw, the safety screw is arranged in the fixed block, and the bottom of the safety screw is connected with the container side plate.

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