Container door lock rod device with self-locking function

Abstract

The utility model relates to the technical field of container door lock rods, in particular to a container door lock rod device with a self-locking function, which comprises a metal lock rod, a square and rectangular tube and a locking block, the metal lock rod is sleeved in the square and rectangular tube, and a limit rod is welded on one side of the bottom end of the metal lock rod. A bottom sliding hole is formed in the bottom of the square and rectangular pipe, the limiting rod penetrates through the bottom sliding hole, a locking block is installed at the bottom of the square and rectangular pipe and located at one end of the bottom sliding hole through a screw, and a lock inlet is formed in one end of the locking block and right faces the bottom sliding hole; a pressure-sensitive switch is mounted at one end in the lock inlet through a screw, and an electromagnet is mounted on one side of the locking block in a penetrating manner through a mounting hole; according to the container door lock rod device, when the metal lock rod is inserted into the lock rod limiting insertion groove, the metal lock rod is automatically locked, stability is good, shaking is not likely to happen, and the situation that the metal lock rod is deformed after being used for a long time and cannot be accurately inserted into the lock rod limiting insertion groove is avoided.

Description

Technical Field

[0001] This utility model relates to the field of container door locking bar technology, specifically to a container door locking bar device with self-locking function. Background Technology

[0002] The container door locking bar is a key component of the container door locking system. It works in conjunction with the locking bar limit slot to lock the container door, ensuring the safety of goods during transportation and storage. It prevents the container door from accidentally opening due to vibration or collision during transport, thus protecting the cargo. The locking bar is generally cylindrical or square, with its length customized according to the container door dimensions. It has connectors at both ends and is typically made of high-strength steel (such as Q235 or Q345) or stainless steel, with a galvanized or powder-coated surface to improve corrosion resistance.

[0003] Existing container door locking devices cannot automatically lock the metal locking rod when it is inserted into the locking rod limiting slot. They are unstable, prone to shaking, and can deform after long-term use, making it impossible to accurately insert the locking rod into the locking rod limiting slot. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a container door locking rod device with a self-locking function. When the metal locking rod is inserted into the locking rod limiting slot, the container door locking rod device automatically locks the metal locking rod, which has good stability, is not easy to shake, avoids deformation after long-term use, and prevents it from being unable to be accurately inserted into the locking rod limiting slot.

[0005] The technical solution adopted by this utility model to solve its technical problem is a container door locking rod device with self-locking function, including a metal locking rod, a rectangular tube and a locking block. The metal locking rod is sleeved inside the rectangular tube and a limit rod is welded to one side of the bottom end of the metal locking rod. A bottom sliding hole is opened at the bottom of the rectangular tube and the limit rod passes through the bottom sliding hole. A locking block is installed at the bottom of the rectangular tube and at one end of the bottom sliding hole by screws. One end of the locking block and facing the bottom sliding hole has a locking port.

[0006] A pressure-sensitive switch is installed at one end of the locking port by a screw. An electromagnet is installed through a mounting hole on one side of the locking block. A rectangular pre-drilled hole is opened on the other side of the locking block, and an iron limiting block is fitted inside the rectangular pre-drilled hole. The iron limiting block is positioned directly opposite the magnetic attraction end of the electromagnet. An L-shaped positioning plate is welded to one end of the outer side of the rectangular pre-drilled hole, and the inner side of the L-shaped positioning plate is connected to the iron limiting block by a connecting spring.

[0007] By adopting the above technical solution, the container door locking rod device automatically locks the metal locking rod when it is inserted into the locking rod limiting slot. It has good stability, is not easy to shake, avoids deformation after long-term use, and prevents it from being unable to be accurately inserted into the locking rod limiting slot.

[0008] Specifically, a battery is mounted on one side of the locking block and at one end of the electromagnet by a screw, and the output end of the battery is electrically connected to the input end of the electromagnet and the pressure-sensitive switch by a wire.

[0009] Specifically, the output terminal of the pressure-sensitive switch and the input terminal of the electromagnet are electrically connected by a wire.

[0010] By adopting the above technical solution, when the limit rod presses against the pressure-sensitive switch and exceeds the set value, the pressure-sensitive switch will automatically connect the electromagnet circuit.

[0011] Specifically, both ends of the connecting spring are connected to an L-shaped positioning plate and an iron limiting block respectively via connecting pieces and screws.

[0012] Specifically, L-shaped mounting feet are welded to the top and bottom of one side of the rectangular tube, and screw holes are opened at both ends of the L-shaped mounting feet.

[0013] Specifically, a hand lever is welded to one end of the metal locking rod, and a lateral sliding hole is opened on the other side of the rectangular tube, through which the hand lever passes.

[0014] By adopting the above technical solution, the staff moves the lever towards the locking bar limiting slot, thereby sliding the metal locking bar out of the rectangular tube and inserting one end into the locking bar limiting slot.

[0015] The beneficial effects of this utility model are:

[0016] (1) The container door lock rod device with self-locking function described in this utility model allows the operator to move the lever towards the lock rod limiting slot, thereby sliding the metal lock rod out of the rectangular tube and inserting one end into the lock rod limiting slot. As the metal lock rod slides, the limiting rod enters the locking block from the locking port. When the limiting rod presses against the pressure switch and exceeds the set value, the pressure switch will automatically connect the electromagnet circuit. The electromagnet at the end facing the iron limiting block will generate magnetism, overcoming the elastic force of the connecting spring and pulling the iron limiting block out of the rectangular reserved hole. One end of the iron limiting block enters the locking port, thereby automatically realizing the locking function of the limiting rod.

[0017] (2) The container door lock rod device with self-locking function described in this utility model has an iron limit block that retracts and resets under the action of the connecting spring when the electromagnet circuit is disconnected. The metal lock rod has a guiding function during movement, good stability, and is not easy to shake. It avoids deformation after long-term use and cannot be accurately inserted into the lock rod limit slot. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the end structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the locking block structure of this utility model.

[0022] In the diagram: 1. L-shaped mounting foot; 2. Metal locking rod; 3. Hand lever; 4. Square / rectangular tube; 5. Lateral sliding hole; 6. Battery; 7. Electromagnet; 8. Locking block; 9. Iron limit block; 10. Locking port; 11. Bottom sliding hole; 12. Limiting rod; 13. Pressure-sensitive switch; 14. Rectangular reserved hole; 15. Connecting spring; 16. Connecting piece; 17. L-shaped positioning plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To ensure the container door locking mechanism automatically locks the metal locking rod 2 when inserted into the locking rod limiting slot, it must be stable, not easily shaken, and prevent deformation over long-term use, thus avoiding inaccurate insertion into the locking rod limiting slot. Figure 1-3 As shown, the container door locking rod device with self-locking function of this utility model includes a metal locking rod 2, a rectangular tube 4 and a locking block 8. The metal locking rod 2 is sleeved inside the rectangular tube 4 and a limiting rod 12 is welded to one side of the bottom end of the metal locking rod 2. A bottom sliding hole 11 is opened at the bottom of the rectangular tube 4 and the limiting rod 12 passes through the bottom sliding hole 11. The locking block 8 is installed at the bottom of the rectangular tube 4 and at one end of the bottom sliding hole 11 by screws. A locking port 10 is opened at one end of the locking block 8 and directly opposite the bottom sliding hole 11.

[0025] A pressure-sensitive switch 13 is installed at one end of the locking port 10 by a screw. An electromagnet 7 is installed through a mounting hole on one side of the locking block 8. A rectangular reserved hole 14 is opened on the other side of the locking block 8, and an iron limiting block 9 is fitted inside the rectangular reserved hole 14. The iron limiting block 9 is positioned directly opposite the magnetic attraction end of the electromagnet 7. An L-shaped positioning plate 17 is welded to one end of the outer side of the rectangular reserved hole 14, and the inner side of the L-shaped positioning plate 17 is connected to the iron limiting block 9 by a connecting spring 15.

[0026] When in use, the container door locking device automatically locks the metal locking rod 2 when it is inserted into the locking rod limiting slot. It has good stability, is not easy to shake, and avoids deformation after long-term use, preventing it from being unable to be accurately inserted into the locking rod limiting slot.

[0027] For example, such as Figure 1 , 3 As shown, the present invention also includes a battery 6 installed on one side of the locking block 8 and at one end of the electromagnet 7 by screws. The output end of the battery 6 is electrically connected to the electromagnet 7 and the input end of the pressure-sensitive switch 13 by wires.

[0028] When in use, the storage battery 6 can be used to power electrical equipment and ensure its stable operation.

[0029] For example, such as Figure 1 , 3 As shown, the present invention also includes an electrical connection between the output terminal of the pressure-sensitive switch 13 and the input terminal of the electromagnet 7 via a wire.

[0030] When in use, when the limit rod 12 presses against the pressure switch 13 and exceeds the set value, the pressure switch 13 will automatically connect the electromagnet 7 circuit.

[0031] For example, such as Figure 3 As shown, the present invention also includes that both ends of the connecting spring 15 are respectively connected to the L-shaped positioning plate 17 and the iron limiting block 9 via connecting pieces 16 and screws.

[0032] During use, the connecting piece 16 and screws facilitate the installation and removal of the connecting spring 15.

[0033] For example, such as Figure 1 As shown, the present invention also includes an L-shaped mounting foot 1 welded to the top and bottom of one side of the rectangular tube 4, and screw holes are provided at both ends of the L-shaped mounting foot 1.

[0034] When in use, the square and rectangular tube 4 can be easily fixed to one side of the container door using the screw holes on the L-shaped mounting feet 1 and the matching bolts.

[0035] For example, such as Figure 1 As shown, the present invention also includes a hand lever 3 welded to one end of the metal locking rod 2, and a lateral sliding hole 5 opened on the other side of the rectangular tube 4, through which the hand lever 3 passes.

[0036] When in use, the operator moves the lever 3 towards the locking rod limiting slot, thereby sliding the metal locking rod 2 out of the rectangular tube 4 and inserting one end into the locking rod limiting slot.

[0037] When in use, the screw holes on the L-shaped mounting feet 1 and the matching bolts make it easy to fix the rectangular tube 4 to one side of the container door, and the metal locking rod 2 is directly opposite the locking rod limiting slot. The operator moves the lever 3 towards the locking rod limiting slot, thereby sliding the metal locking rod 2 out of the rectangular tube 4 and inserting one end into the locking rod limiting slot.

[0038] As the metal locking rod 2 slides, the limiting rod 12 enters the locking block 8 from the locking port 10. When the limiting rod 12 presses against the pressure switch 13 and exceeds the set value, the pressure switch 13 will automatically connect the electromagnet 7 circuit. The end of the electromagnet 7 facing the iron limiting block 9 will generate magnetism, overcoming the elastic force of the connecting spring 15 and thus pulling the iron limiting block 9 out of the rectangular reserved hole 14. One end of the iron limiting block 9 will enter the locking port 10, thereby automatically realizing the locking function of the limiting rod 12.

[0039] When the electromagnet 7 circuit is disconnected, the iron limiting block 9 retracts and resets under the action of the elastic force of the connecting spring 15. The metal locking rod 2 has a guiding function during movement, has good stability, is not easy to shake, avoids deformation after long-term use, and cannot be accurately inserted into the locking rod limiting slot.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A container door locking bar device with self-locking function, characterized in that, The device includes a metal locking rod (2), a rectangular tube (4), and a locking block (8). The rectangular tube (4) is fitted with the metal locking rod (2), and a limiting rod (12) is welded to one side of the bottom end of the metal locking rod (2). The bottom of the rectangular tube (4) is provided with a bottom sliding hole (11), and the limiting rod (12) passes through the bottom sliding hole (11). The bottom of the rectangular tube (4) and one end of the bottom sliding hole (11) is fitted with a locking block (8) by screws. One end of the locking block (8) and facing the bottom sliding hole (11) is provided with a locking port (10). A pressure-sensitive switch (13) is installed at one end of the locking port (10) by a screw. An electromagnet (7) is installed through a mounting hole on one side of the locking block (8). A rectangular reserved hole (14) is opened on the other side of the locking block (8), and an iron limiting block (9) is fitted inside the rectangular reserved hole (14). The iron limiting block (9) is set directly opposite the magnetic end of the electromagnet (7). An L-shaped positioning plate (17) is welded to one end of the outer side of the rectangular reserved hole (14), and the inner side of the L-shaped positioning plate (17) is connected to the iron limiting block (9) by a connecting spring (15).

2. A container door locking rod device with self-locking function according to claim 1, characterized in that, A battery (6) is installed on one side of the locking block (8) and at one end of the electromagnet (7) by a screw. The output end of the battery (6) is electrically connected to the input end of the electromagnet (7) and the pressure-sensitive switch (13) by a wire.

3. A container door locking rod device with self-locking function according to claim 1, characterized in that, The output terminal of the pressure-sensitive switch (13) and the input terminal of the electromagnet (7) are electrically connected by a wire.

4. A container door locking rod device with self-locking function according to claim 1, characterized in that, Both ends of the connecting spring (15) are connected to the L-shaped positioning plate (17) and the iron limiting block (9) respectively through connecting pieces (16) and screws.

5. A container door locking rod device with self-locking function according to claim 1, characterized in that, The square tube (4) has an L-shaped mounting foot (1) welded to the top and bottom of one side, and the two ends of the L-shaped mounting foot (1) are provided with screw holes.

6. A container door locking rod device with self-locking function according to claim 1, characterized in that, A hand lever (3) is welded to one end of the metal locking rod (2), and a lateral sliding hole (5) is opened on the other side of the rectangular tube (4), through which the hand lever (3) passes.

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