A self-locking locking ring for marine container crane

Abstract

The present invention belongs to the technical field of container transportation, and specifically relates to a self-locking resistance ring for lifting a marine transport container, comprising a ring body, wherein the bottom of the inner part of the ring body is threadedly connected with a connecting bolt, and the bottom of the connecting bolt extends to the outside of the ring body. The present invention can automatically insert the second sliding rod into the interior of the limiting cavity during the process of installing the lifting ring into the corresponding position of the container, thereby realizing the self-locking of the connecting bolt, and the staff does not need to perform the locking operation on the connecting bolt separately, thereby improving the efficiency of the installation of the lifting ring, and the mutual cooperation between the second sliding rod and the limiting cavity can reduce the probability of relative rotation between the connecting bolt and the ring body during the lifting process, thereby effectively preventing the ring body and the connecting bolt from falling off during the lifting process, avoiding the container from falling during the lifting process to a certain extent, and reducing the safety hazard during the container lifting.

Description

Technical Field

[0001] The invention belongs to the technical field of container transportation, and in particular relates to a rotary resistance ring with a self-locking function for lifting a marine transportation container. Background Art

[0002] A container is a group of tools that can be loaded with packaged or unpackaged goods for transportation and is convenient for loading and unloading with mechanical equipment. It is often used in maritime cargo transportation. When transporting containers by cargo ships, it is necessary to first lift the container onto the cargo ship through a lifting device. At this time, it is necessary to first install the lifting ring on the corresponding position of the container connector, and then hook the lifting ring through the lifting device to lift the container. Before installing the lifting ring on the container, it is necessary to assemble the lifting ring first, that is, screw the connecting bolt into the inside of the ring body, and then install the assembled lifting ring on the corresponding position of the container connector. When the installation is completed, it is necessary to manually lock the rotating block and the ring body with a buckle installed on the rotating block, thereby preventing the connecting bolt and the ring body from rotating relative to each other, forming an anti-rotation ring structure.

[0003] Problems with existing technologies:

[0004] The above process of locking the buckle between the rotating block and the ring body requires the operator to perform a separate manual operation, which is time-consuming and labor-intensive, resulting in a more complicated locking operation of the connecting bolts, which reduces the efficiency of the connecting bolt locking to a certain extent. Summary of the invention

[0005] The purpose of the present invention is to provide a self-locking resistance ring for use in offshore transport container cranes, which can automatically insert the second sliding rod into the inside of the limiting cavity when the lifting ring is installed into the corresponding position of the container, thereby realizing self-locking of the connecting bolts. The staff does not need to lock the connecting bolts separately, thereby improving the efficiency of the lifting ring installation, and the mutual cooperation between the second sliding rod and the limiting cavity can reduce the probability of relative rotation between the connecting bolts and the ring body during the lifting process, thereby effectively preventing the ring body and the connecting bolt from falling off during the lifting process, avoiding the container from falling during the lifting process to a certain extent, and reducing the safety hazards during container lifting.

[0006] The technical solution adopted by the present invention is as follows:

[0007] The lock member is a pair of locks, each of which is connected to the other end of the chain, and the lock member is connected to the other end by a bolt, and the bolt has a round shank to contact with the other end of the chain.

[0008] The bottom of the first sliding rod extends to the outside of the connecting bolt, and the top of the first sliding rod extends to the inside of the mounting cavity where a mounting block is fixedly arranged. A second spring is arranged at the middle position inside the mounting block, and second sliding rods are fixedly arranged at both ends of the second spring. The second sliding rod is slidably connected to the inside of the mounting block, and the ends of the second sliding rod that are away from each other extend to the outside of the mounting block and are slidably connected to the inner wall of the mounting block. First limiting rods are fixedly arranged on both sides of the inner wall of the ring body and at positions corresponding to the second sliding rods. A limiting cavity is opened on the opposite side of the two first limiting rods, and the limiting cavity and the second sliding rod are adapted to each other.

[0009] Ball bearings are fixedly arranged at the ends of the two second sliding rods which are away from each other, and the second sliding rods are slidably connected to the inner wall of the mounting block via the ball bearings.

[0010] A push rod is fixedly arranged on the top of the second sliding rod, a through slot is opened at a position on the top of the mounting block corresponding to the push rod, and the top of the push rod extends through the through slot to the outside of the mounting block.

[0011] Installation cavities are symmetrically provided at the bottom of both sides of the connecting bolt, a sliding rod is slidably provided inside the installation cavity, a third spring is provided between the outer wall of the sliding rod and the inner wall of the installation cavity, and elastic gaskets are fixedly provided at the ends of the two sliding rods that are away from each other.

[0012] One end opposite to the two slide bars extends into the interior of the connecting bolt, and one end opposite to the two slide bars is in an arc-shaped structure.

[0013] Adjustment beads are fixedly arranged at positions corresponding to the sliding rod at the bottom of both sides of the first sliding rod. The adjustment beads and the sliding rod are adapted to each other, and the distance between the sliding rod and the adjustment beads is adapted to the distance from the first sliding rod to the outside of the connecting bolt.

[0014] A U-shaped mounting plate is fixedly provided at the edge of the top of the rotating block, a strip mounting plate is fixedly provided inside the U-shaped mounting plate, an adjusting bolt is rotatably provided at the front position of the top of the strip mounting plate, an outer wall of the adjusting bolt is threadedly connected with an internally threaded sleeve, and the top of the internally threaded sleeve extends to the outside of the U-shaped mounting plate.

[0015] Second limiting rods are fixedly arranged on both sides of the internal threaded sleeve and at positions corresponding to the push rod, and the second limiting rods have rigidity.

[0016] The front and back sides of the internally threaded sleeve are fixedly provided with sliding limit rods, and the inner wall of the U-shaped mounting plate is provided with sliding limit grooves at positions corresponding to the sliding limit rods, and the sliding limit rods are slidably connected to the sliding limit grooves.

[0017] The technical effects achieved by the present invention are:

[0018] When the first sliding rod is slid to a certain position, the mounting block and the second sliding rod are gradually moved to the outside of the rotating block due to the elastic force of the second spring, thereby completing the automatic locking of the connecting bolt. The staff does not need to perform the locking operation of the connecting bolt separately, simplifies the steps of locking the connecting bolt, improves the locking efficiency of the connecting bolt, and the mutual cooperation between the second sliding rod and the limiting cavity can reduce the probability of relative rotation between the connecting bolt and the ring body during the lifting process, thereby effectively preventing the ring body and the connecting bolt from falling off during the lifting process, avoiding the container from falling off during the lifting process to a certain extent, and reducing the safety hazards during the container lifting.

[0019] The first slide rod is pressed against the second slide rod when the first slide rod is in a certain position, so that the adjusting bead gradually squeezes the second slide rod, and the ends of the two second slide rods that are away from each other gradually slide to the outside of the installation cavity and press the inner wall of the screw hole of the connector, so that the connection between the connecting bolt and the screw hole of the connector is tightened, and the probability of the connecting bolt and the container connector being separated is reduced, and the ring body and the connecting bolt are further effectively prevented from falling off during the lifting process, so as to avoid the container from falling off during the lifting process to a certain extent, and reduce the safety hazard during the container lifting.

[0020] According to the present invention, after the second sliding rod is inserted into the limit cavity, the adjusting bolt can be rotated so that the adjusting bolt drives the second limit rod to move downward through the internal threaded sleeve during the rotation. During this process, the internal threaded sleeve drives the sliding limit rod to slide in the sliding limit groove. When the second limit rod moves to a certain position, the end of the second limit rod away from the internal threaded sleeve contacts the opposite side of the two push rods, so that the push rod and the second sliding rod are limited by the second limit rod, thereby reducing the probability of the second sliding rod detaching from the limit cavity during the lifting process, and further reducing the probability of the connecting bolt detaching from the ring body during the lifting process, thereby avoiding the container from falling during the lifting process to a certain extent, and reducing the safety hazard during the container lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view provided by an embodiment of the present invention;

[0022] Figure 2 is a front cross-sectional view provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic diagram of the internal structure of a connecting bolt provided by an embodiment of the present invention;

[0024] Figure 4 is a side view of a connecting bolt provided by an embodiment of the present invention;

[0025] Figure 5 The embodiments of the present invention provide Figure 2 A magnified view of the local structure.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Ring body; 2. Connecting bolt; 3. Rotating block; 4. First sliding rod; 5. First sliding groove; 6. First slider; 7. First spring; 8. Mounting block; 9. Second spring; 10. Second sliding rod; 11. Ball; 12. Through groove; 13. Push rod; 14. Limit block; 15. Mounting cavity; 16. Sliding rod; 17. Third spring; 18. Adjusting ball; 19. First limiting rod; 20. Limiting cavity; 21. U-shaped mounting plate; 22. Adjusting bolt; 23. Internally threaded sleeve; 24. Sliding limiting rod; 25. Sliding limiting groove; 26. Second limiting rod; 27. Strip mounting plate. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0029] like Figure 1-3 As shown, a rotary resistance ring with a self-locking function for a marine transport container crane comprises a ring body 1, a connecting bolt 2 is threadedly connected to the bottom of the ring body 1, the bottom of the connecting bolt 2 extends to the outside of the ring body 1, a rotating block 3 is fixedly arranged on the top of the connecting bolt 2, an installation cavity with an open top structure is provided inside the rotating block 3, a first sliding rod 4 is slidably provided inside the connecting bolt 2, first sliding grooves 5 are symmetrically provided on the tops of both sides of the first sliding rod 4, a first slider 6 is fixedly arranged at a position of the inner wall of the connecting bolt 2 corresponding to the first sliding groove 5, the connecting bolt 2 and the first sliding rod 4 are slidably connected through the cooperation of the first slider 6 and the first sliding groove 5, a first spring 7 is arranged on the outer wall of the first sliding rod 4, the top of the inner wall of the first spring 7 is fixedly connected to the outer wall of the first sliding rod 4, and a limiting block 14 is fixedly arranged on the outer wall of the first sliding rod 4 and at the bottom of the first spring 7;

[0030] The bottom of the first sliding rod 4 extends to the outside of the connecting bolt 2, and the top of the first sliding rod 4 extends to the inside of the mounting cavity and is fixedly provided with a mounting block 8. A second spring 9 is provided at the middle position inside the mounting block 8, and second sliding rods 10 are fixedly provided at both ends of the second spring 9. The second sliding rod 10 is slidably connected to the inside of the mounting block 8, and the ends of the second sliding rod 10 that are away from each other extend to the outside of the mounting block 8 and are slidably connected to the inner wall of the mounting block 8. First limiting rods 19 are fixedly provided on both sides of the inner wall of the ring body 1 and at positions corresponding to the second sliding rod 10. A limiting cavity 20 is provided on the opposite side of the two first limiting rods 19, and the limiting cavity 20 is adapted to the second sliding rod 10. A pushing rod 13 is fixedly provided on the top of the second sliding rod 10, and a through groove 12 is provided at a position on the top of the mounting block 8 corresponding to the pushing rod 13, and the top of the pushing rod 13 passes through the through groove 12 and extends to the outside of the mounting block 8.

[0031] According to the above structure, when the lifting ring is installed at the corresponding position of the container, the connecting bolt 2 is first screwed into the inside of the ring body 1, and then the ring body 1 is screwed and installed to the corresponding position of the container connecting piece through the connecting bolt 2. In the process of screwing the connecting bolt 2 to the corresponding position of the container, the bottom of the first sliding rod 4 gradually contacts the bottom of the screw hole of the container connecting piece, so that the first spring 7 is gradually compressed, and the first sliding rod 4 slides toward the inside of the connecting bolt 2. The first sliding rod 4 drives the mounting block 8 and the second sliding rod 10 to slide upward. When the first sliding rod 4 slides to a certain position, the mounting block 8 and the second sliding rod 10 gradually move to the rotating block 3. On the outside, due to the elastic force of the second spring 9, the second sliding rod 10 is inserted into the inside of the limiting cavity 20, thereby completing the automatic locking of the connecting bolt 2. The staff does not need to lock the connecting bolt 2 separately, which simplifies the steps of locking the connecting bolt 2 and improves the locking efficiency of the connecting bolt 2. The mutual cooperation between the second sliding rod 10 and the limiting cavity 20 can reduce the probability of relative rotation between the connecting bolt 2 and the ring body 1 during the lifting process, thereby effectively preventing the ring body 1 and the connecting bolt 2 from falling off during the lifting process, avoiding the falling of the container during the lifting process to a certain extent, and reducing the safety hazards during container lifting.

[0032] Refer to the attached Figure 2 A ball 11 is fixedly provided at one end of the two second sliding rods 10 which are away from each other. The second sliding rod 10 is slidably connected to the inner wall of the mounting block 8 through the ball 11. In the process of the first sliding rod 4 driving the mounting block 8 and the second sliding rod 10 to slide upward, the ball 11 slides on the inner wall of the rotating block 3. The friction between the second sliding rod 10 and the inner wall of the rotating block 3 can be reduced by the action of the ball 11, thereby making it easier for the second sliding rod 10 to move upward.

[0033] Refer to the attached Figure 2 and 3 , installation cavities 15 are symmetrically provided at the bottom of both sides of the connecting bolt 2, and a sliding rod 16 is slidably provided inside the installation cavity 15, and a third spring 17 is provided between the outer wall of the sliding rod 16 and the inner wall of the installation cavity 15, and elastic gaskets are fixedly provided at the ends of the two sliding rods 16 that are away from each other, and the opposite ends of the two sliding rods 16 extend to the inside of the connecting bolt 2, and the opposite ends of the two sliding rods 16 are in an arc-shaped structure, and adjusting beads 18 are fixedly provided at the positions corresponding to the sliding rods 16 at the bottom of both sides of the first sliding rod 4, and the adjusting beads 18 are adapted to the sliding rod 16, and the distance between the sliding rod 16 and the adjusting beads 18 is adapted to the distance from the first sliding rod 4 to the outside of the connecting bolt 2.

[0034] According to the above structure, in the process of screwing the connecting bolt 2 to the corresponding position of the container connecting piece, the first sliding rod 4 gradually slides to the inside of the connecting bolt 2. When the first sliding rod 4 slides to a certain position, the adjusting bead 18 gradually contacts the arc end of the sliding rod 16, so that the adjusting bead 18 gradually squeezes the sliding rod 16, so that the ends of the two sliding rods 16 that are away from each other gradually slide to the outside of the installation cavity 15 and press the inner wall of the connecting piece screw hole, so that the connection between the connecting bolt 2 and the connecting piece screw hole is tightened, reducing the probability of the connecting bolt 2 being detached from the container connecting piece, and further effectively preventing the ring body 1 and the connecting bolt 2 from falling off during the lifting process, avoiding the falling of the container during the lifting process to a certain extent, and reducing the safety hazards during container lifting.

[0035] Refer to the attached Figure 2 and 4 A U-shaped mounting plate 21 is fixedly provided at the edge of the top of the rotating block 3, a strip mounting plate 27 is fixedly provided inside the U-shaped mounting plate 21, an adjusting bolt 22 is rotatably provided at the front position of the top of the strip mounting plate 27, the outer wall of the adjusting bolt 22 is threadedly connected with an internally threaded sleeve 23, the top of the internally threaded sleeve 23 extends to the outside of the U-shaped mounting plate 21, and second limiting rods 26 are fixedly provided on both sides of the internally threaded sleeve 23 and at a position corresponding to the push rod 13. The second limiting rod 26 has rigidity, and the length of the second limiting rod 26 is adapted to the position of the push rod 13 after the second sliding rod 10 is inserted into the limiting cavity 20, and sliding limiting rods 24 are fixedly provided on the front and back sides of the internally threaded sleeve 23, and a sliding limiting groove 25 is provided at a position corresponding to the sliding limiting rod 24 on the inner wall of the U-shaped mounting plate 21, and the sliding limiting rod 24 is slidably connected with the sliding limiting groove 25.

[0036] According to the above structure, after the second sliding rod 10 is inserted into the limiting cavity 20, the adjusting bolt 22 can be rotated so that the adjusting bolt 22 drives the second limiting rod 26 to move downward through the internal threaded sleeve 23 during the rotation. During this process, the internal threaded sleeve 23 drives the sliding limiting rod 24 to slide inside the sliding limiting groove 25. When the second limiting rod 26 moves to a certain position, the end of the second limiting rod 26 away from the internal threaded sleeve 23 contacts the opposite side of the two pushing rods 13, so that the pushing rod 13 and the second sliding rod 10 are limited by the second limiting rod 26, thereby reducing the probability of the second sliding rod 10 detaching from the limiting cavity 20 during the lifting process, and further reducing the probability of the connecting bolt 2 detaching from the ring body 1 during the lifting process, thereby avoiding the falling of the container during the lifting process to a certain extent, and reducing the safety hazard during the container lifting.

[0037] The working principle of the present invention is:

[0038] When installing the lifting ring at the corresponding position of the container, first screw the connecting bolt 2 into the inside of the ring body 1, and then screw the ring body 1 threadedly to the corresponding position of the container connecting piece through the connecting bolt 2. In the process of screwing the connecting bolt 2 to the corresponding position of the container, the bottom of the first sliding rod 4 gradually contacts a certain part of the container, so that the first spring 7 is gradually compressed, and the first sliding rod 4 slides toward the inside of the connecting bolt 2. The first sliding rod 4 drives the mounting block 8 and the second sliding rod 10 to slide upward. When the first sliding rod 4 slides to a certain position, the mounting block 8 and the second sliding rod 10 gradually move to the outside of the rotating block 3. At this time, due to the elastic force of the second spring 9, the second sliding rod 10 is inserted into the inside of the limiting cavity 20, thereby completing the automatic locking of the connecting bolt 2. The staff does not need to perform the locking operation on the connecting bolt 2 separately, which simplifies the steps of locking the connecting bolt 2.

[0039] When the second sliding rod 10 is inserted into the limiting cavity 20, the adjusting bolt 22 can be rotated so that the adjusting bolt 22 drives the second limiting rod 26 to move downward through the internal threaded sleeve 23 during the rotation. When the second limiting rod 26 moves to a certain position, the end of the second limiting rod 26 away from the internal threaded sleeve 23 contacts the opposite side of the two push rods 13, thereby limiting the push rod 13 and the second sliding rod 10 through the second limiting rod 26.

[0040] During the process of screwing the connecting bolt 2 to the corresponding position of the container connector, the first sliding rod 4 gradually slides into the inside of the connecting bolt 2. When the first sliding rod 4 slides to a certain position, the adjusting bead 18 gradually contacts the arc end of the sliding rod 16, so that the adjusting bead 18 gradually squeezes the sliding rod 16, so that the ends of the two sliding rods 16 that are away from each other gradually slide to the outside of the installation cavity 15 and press the inner wall of the connecting member screw hole, so that the connection between the connecting bolt 2 and the connecting member screw hole is tightened.

[0041] The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the art unless otherwise specified and limited.

Claims

1. A self-locking resistance ring for use in marine transport container lifting, comprising a ring body (1), characterized in that: The bottom of the ring body (1) is threadedly connected with a connecting bolt (2), the bottom of the connecting bolt (2) extends to the outside of the ring body (1), the top of the connecting bolt (2) is fixedly provided with a rotating block (3), the inside of the rotating block (3) is provided with a mounting cavity with an open top structure, the inside of the connecting bolt (2) is slidably provided with a first sliding rod (4), the tops of both sides of the first sliding rod (4) are symmetrically provided with first sliding grooves (5), the inner wall of the connecting bolt (2) is fixedly provided with a first sliding block (6) at a position corresponding to the first sliding groove (5), the connecting bolt (2) and the first sliding rod (4) are slidably connected through the cooperation of the first sliding block (6) and the first sliding groove (5), the outer wall of the first sliding rod (4) is provided with a first spring (7), the top of the inner wall of the first spring (7) is fixedly connected to the outer wall of the first sliding rod (4), and a limiting block (14) is fixedly provided on the outer wall of the first sliding rod (4) and located at the bottom of the first spring (7); The bottom of the first sliding rod (4) extends to the outside of the connecting bolt (2), the top of the first sliding rod (4) extends to the inside of the mounting cavity and is fixedly provided with a mounting block (8), a second spring (9) is provided at the middle position inside the mounting block (8), and second sliding rods (10) are fixedly provided at both ends of the second spring (9), the second sliding rod (10) is slidably connected to the inside of the mounting block (8), and the ends of the second sliding rod (10) that are away from each other extend to the outside of the mounting block (8) and are slidably connected to the inner wall of the mounting block (8), and first limiting rods (19) are fixedly provided on both sides of the inner wall of the ring body (1) and at positions corresponding to the second sliding rods (10), and limiting cavities (20) are provided on opposite sides of the two first limiting rods (19), and the limiting cavities (20) and the second sliding rods (10) are adapted to each other; A push rod (13) is fixedly arranged on the top of the second sliding rod (10); a through slot (12) is provided at a position on the top of the mounting block (8) corresponding to the push rod (13); and the top of the push rod (13) passes through the through slot (12) and extends to the outside of the mounting block (8); A U-shaped mounting plate (21) is fixedly arranged at the edge of the top of the rotating block (3), a strip-shaped mounting plate (27) is fixedly arranged inside the U-shaped mounting plate (21), an adjusting bolt (22) is rotatably arranged at the front position of the top of the strip-shaped mounting plate (27), an outer wall of the adjusting bolt (22) is threadedly connected with an internally threaded sleeve (23), and the top of the internally threaded sleeve (23) extends to the outside of the U-shaped mounting plate (21); Second limiting rods (26) are fixedly arranged on both sides of the internally threaded sleeve (23) and at positions corresponding to the push rod (13), and the second limiting rods (26) are rigid; The front and back sides of the internally threaded sleeve (23) are fixedly provided with sliding limit rods (24), and the inner wall of the U-shaped mounting plate (21) is provided with sliding limit grooves (25) at positions corresponding to the sliding limit rods (24), and the sliding limit rods (24) are slidably connected to the sliding limit grooves (25).

2. The self-locking resistance ring for marine container lifting according to claim 1 is characterized in that: A ball (11) is fixedly provided at one end of the two second sliding rods (10) which are away from each other, and the second sliding rods (10) are slidably connected to the inner wall of the mounting block (8) via the ball (11).

3. The self-locking resistance ring for marine container lifting according to claim 1 is characterized in that: The bottoms of both sides of the connecting bolt (2) are symmetrically provided with installation cavities (15), a sliding rod (16) is slidably arranged inside the installation cavity (15), a third spring (17) is arranged between the outer wall of the sliding rod (16) and the inner wall of the installation cavity (15), and an elastic gasket is fixedly arranged at one end of the two sliding rods (16) that are away from each other.

4. The self-locking resistance ring for lifting a marine container according to claim 3 is characterized in that: One opposite end of the two sliding rods (16) extends into the interior of the connecting bolt (2), and one opposite end of the two sliding rods (16) is in an arc-shaped structure.

5. The self-locking resistance ring for marine container lifting according to claim 3 is characterized in that: Adjustment beads (18) are fixedly arranged at positions corresponding to the slide rod (16) at the bottom of both sides of the first slide rod (4); the adjustment beads (18) and the slide rod (16) are adapted to each other, and the distance between the slide rod (16) and the adjustment beads (18) is adapted to the distance from the first slide rod (4) to the outside of the connecting bolt (2).

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