Buffering pressing plate device of middle lock mechanism of double-box lifting appliance

Abstract

The utility model discloses a buffer pressing plate device of a middle lock mechanism of a double-box lifting appliance, which comprises a main pressing plate provided with an elastic buffer strip; a track is movably installed on the elastic buffer strip, a connecting frame is fixedly installed on one side of the main pressing plate, a lubricating structure is installed on the connecting frame, a plurality of sliding rods are installed on the connecting frame in a sliding mode, emergency buffer structures are installed on the sliding rods, a switch is fixedly installed on the inner wall of the connecting frame, and a warning structure is installed on the switch. By starting the motor, lubricating grease in the lubricating grease tank can be smeared on the track through the stainless steel corrugated pipe, the moving track is consistent with that of the track, the elastic buffer strip can be driven to make contact with the lubricating grease in the moving process of the middle lock mechanism, the lubricating grease is evenly smeared on the track, and meanwhile the elastic buffer strip can be lubricated; friction force generated between the elastic buffer strip and the track is reduced, the service life of the track is prolonged, and maintenance personnel do not need to frequently and manually add grease for lubrication.

Description

Technical Field

[0001] The utility model relates to the technical field of port equipment and double-box slings, in particular to a buffer pressure plate device of a locking mechanism in a double-box sling. Background Art

[0002] The central locking mechanism of the double-box spreader is an important part of the spreader. It is responsible for locking and fixing the container to ensure safety during lifting and transportation. The central locking mechanism usually includes a lock hook, a lock pin, a lock seat and other components. The container is locked through the coordinated action of these components.

[0003] The buffer pressure plate of the middle locking mechanism is mainly buffered by buffer rubber. When the middle locking mechanism moves or is impacted or vibrated during operation, the buffer rubber can absorb part of the energy and reduce the impact of the impact on the locking mechanism and the buffer pressure plate, thereby protecting the equipment and extending its service life.

[0004] In the prior art, a patent with publication number CN219314390U discloses a buffer pressure plate device for a central locking mechanism of a double-box hoist. The device is installed by means of bolts cooperating with the main and auxiliary pressure plates and their through holes. The stability is enhanced by tightening multiple sets of bolts, which can further improve the overall reliability of the central locking buffer pressure plate device. Lubrication holes are reserved for injecting grease to increase and reduce friction and avoid the slide rail from gnawing the rail. The rail and the buffer rubber can be lubricated by injecting grease to avoid direct contact between the main pressure plate and the rail. However, during the continuous friction between the buffer rubber and the rail, the injected grease will be slowly consumed, resulting in a reduced lubrication effect. As a result, maintenance personnel are required to manually add grease for lubrication on a regular basis. The manual addition operation is cumbersome. Therefore, a buffer pressure plate device for a central locking mechanism of a double-box hoist is needed to meet maintenance needs. Utility Model Content

[0005] The utility model aims to provide a buffer pressure plate device of a locking mechanism in a double-box sling to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer pressure plate device of a locking mechanism of a double-box hoist, comprising a main pressure plate, on which an elastic buffer strip is arranged; a track is movably mounted on the elastic buffer strip, a connecting frame is fixedly mounted on one side of the main pressure plate, a lubrication structure is mounted on the connecting frame, a plurality of slide bars are slidably mounted on the connecting frame, an emergency buffer structure is mounted on the slide bars, a switch is fixedly mounted on the inner wall of the connecting frame, and a warning structure is mounted on the switch;

[0007] The lubrication structure includes a mounting seat and a threaded seat, both of which are fixedly mounted on one side of the connecting frame, a grease tank is movably mounted on the inner wall of the mounting seat, the outer surface of the grease tank is provided with threads, the grease tank is threadedly mounted on the inner wall of the threaded seat, a threaded nozzle is fixedly mounted on the grease tank, the threaded nozzle is connected with the grease tank, a docking nozzle is threadedly mounted on the threaded nozzle, a stainless steel bellows is fixedly mounted on the docking nozzle, the docking nozzle is connected with the stainless steel bellows, a fixing seat is fixedly mounted on one side of the connecting frame, a motor is fixedly mounted on one side of the grease tank, a connecting shaft is fixedly mounted on the output end of the motor, the connecting shaft is rotatably mounted on the grease tank, a spiral sheet is fixedly mounted on the connecting shaft, and the spiral sheet contacts the inner wall of the grease tank.

[0008] Preferably, the emergency buffer structure includes a connecting plate, which is fixedly mounted on one end of the sliding rod, and a trigger pressure plate is fixedly mounted on the other end of the sliding rod. The trigger pressure plate is located on one side of the switch, and the trigger pressure plate is slidably mounted on the inner wall of the connecting frame. An emergency buffer strip is fixedly mounted on one side of the connecting plate, and the emergency buffer strip is adapted to the track.

[0009] Preferably, a movable groove is provided on the inner wall of the connecting frame, the trigger pressure plate is slidably installed in the movable groove, and the switch is fixedly installed on the inner wall of the movable groove.

[0010] Preferably, the inner wall of the movable groove is provided with a plurality of sliding holes, and the sliding rod is slidably installed in a corresponding sliding hole.

[0011] Preferably, a spring is slidably sleeved on the slide rod, one end of the spring is fixedly mounted on the inner wall of the movable groove, and the other end of the spring is fixedly mounted on one side of the trigger pressure plate.

[0012] Preferably, the warning structure includes a warning light, which is electrically connected to the switch and has a plurality of mounting holes.

[0013] Preferably, a feed pipe is fixedly mounted on the grease tank, the feed pipe is connected to the grease tank, and a sealing cap is threadedly mounted on the feed pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model can, by turning on the motor, apply the grease in the grease tank to the rail through the stainless steel bellows, in line with the moving trajectory of the rail. During the movement of the central locking mechanism, the elastic buffer strip will be driven to contact the grease, and the grease will be evenly applied to the rail. At the same time, the elastic buffer strip will also be lubricated, reducing the friction between the elastic buffer strip and the rail, thereby increasing the service life of the rail, and there is no need for maintenance personnel to frequently add grease manually for lubrication.

[0016] (2) If the main pressure plate drops due to the wear of the elastic buffer strip and the vibration caused by the movement of the middle locking mechanism, the emergency buffer strip will be pressed on the track. When the middle locking mechanism drives the main pressure plate to move, the emergency buffer strip will slide on the track, thereby sharing the compression of the elastic buffer strip and reducing the subsequent wear and tear, playing an emergency role. At the same time, the triggering pressure plate will squeeze the switch and trigger the warning light. The warning light will emit a bright light to remind maintenance personnel to replace it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a buffer pressure plate device of a locking mechanism of a double-box sling proposed by the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of a buffer pressure plate device of a double-box sling center locking mechanism proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the connecting frame structure of a buffer pressure plate device of a locking mechanism of a double-box sling proposed by the utility model;

[0020] Figure 4 The utility model discloses a cross-sectional structural diagram of a grease tank of a buffer pressure plate device of a central locking mechanism of a double-box sling.

[0021] In the figure: 1. main pressure plate; 2. elastic buffer strip; 3. track; 4. connecting frame; 41. mounting seat; 42. threaded seat; 43. grease tank; 44. threaded nozzle; 45. docking nozzle; 46. stainless steel bellows; 47. fixing seat; 48. motor; 49. connecting shaft; 410. spiral sheet; 411. feed pipe; 412. sealing cover; 5. sliding rod; 51. connecting plate; 52. emergency buffer strip; 53. trigger pressure plate; 54. movable groove; 55. sliding hole; 56. spring; 6. switch; 61. warning light; 62. mounting hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-4The utility model provides a technical solution: a buffer pressure plate device of a locking mechanism of a double-box hoist, comprising a main pressure plate 1, on which an elastic buffer strip 2 is arranged; a track 3 is movably installed on the elastic buffer strip 2, a connecting frame 4 is fixedly installed on one side of the main pressure plate 1, a lubrication structure is installed on the connecting frame 4, a plurality of slide bars 5 are slidably installed on the connecting frame 4, an emergency buffer structure is installed on the slide bars 5, a switch 6 is fixedly installed on the inner wall of the connecting frame 4, and a warning structure is installed on the switch 6;

[0024] The lubrication structure includes a mounting seat 41 and a threaded seat 42, both of which are fixedly mounted on one side of the connecting frame 4, a grease tank 43 is movably mounted on the inner wall of the mounting seat 41, the outer surface of the grease tank 43 is provided with threads, the grease tank 43 is threadedly mounted on the inner wall of the threaded seat 42, a threaded nozzle 44 is fixedly mounted on the grease tank 43, the threaded nozzle 44 is connected with the grease tank 43, a docking nozzle 45 is threadedly mounted on the threaded nozzle 44, a stainless steel bellows 46 is fixedly mounted on the docking nozzle 45, the docking nozzle 45 is connected with the stainless steel bellows 46, a fixing seat 47 is fixedly mounted on the stainless steel bellows 46, the fixing seat 47 is fixedly mounted on one side of the connecting frame 4, a motor 48 is fixedly mounted on one side of the grease tank 43, a connecting shaft 49 is fixedly mounted on the output end of the motor 48, and the connecting shaft 49 is rotated to install It is mounted on the grease tank 43, and a spiral piece 410 is fixedly mounted on the connecting shaft 49. The spiral piece 410 contacts the inner wall of the grease tank 43. Turning on the motor 48 can push the grease in the grease tank 43 to move, thereby pushing the grease to the moving track of the elastic buffer strip 2, that is, the track 3. During the movement of the central locking mechanism, the main pressure plate 1 will drive the elastic buffer strip 2 to contact the applied grease, and the grease will be evenly applied under the repeated movement of the elastic buffer strip 2 to achieve the effect of automatic lubrication. The position of the grease application can be adjusted by turning the stainless steel bellows 46. By rotating the entire grease tank 43, it can be screwed out of the threaded seat 42, and the threaded nozzle 44 can be screwed out of the docking nozzle 45 at the same time. Then, the grease tank 43 can be pulled out to achieve disassembly for maintenance or replacement.

[0025] In order to facilitate the addition of grease into the grease tank 43, a feed pipe 411 is fixedly installed on the grease tank 43. The feed pipe 411 is connected to the grease tank 43. A sealing cover 412 is threadedly installed on the feed pipe 411. The feed pipe 411 can be opened by rotating the sealing cover 412 so that grease can be added into the grease tank 43 through the feed pipe 411.

[0026] Example 2: Figure 1-3In order to share the squeezing force of the elastic buffer strip 2 when the elastic buffer strip 2 is severely worn and remind the staff to replace it in time, an emergency buffer structure is arranged on the slide bar 5, and a warning structure is arranged on the switch 6. The emergency buffer structure includes a connecting plate 51, which is fixedly installed at one end of the slide bar 5, and a trigger pressure plate 53 is fixedly installed at the other end of the slide bar 5. The trigger pressure plate 53 is located on one side of the switch 6, and the trigger pressure plate 53 is slidably installed on the inner wall of the connecting frame 4. An emergency buffer strip 52 is fixedly installed on one side of the connecting plate 51, and the emergency buffer strip 52 is adapted to the track 3. A movable groove 54 is provided on the inner wall of the connecting frame 4, and the trigger pressure plate 53 is slidably installed in the movable groove 54. The switch 6 is fixedly installed on the inner wall of the movable groove 54, and a plurality of sliding holes 55 are provided on the inner wall of the movable groove 54. The slide bar 5 is slidably installed in a corresponding sliding hole 55. A spring 56 is slidably sleeved on the slide bar 5, and one end of the spring 56 is fixedly installed on the inner wall of the movable groove 54, and the other end of the spring 56 is fixedly installed Installed on one side of the trigger pressure plate 53, the warning structure includes a warning light 61, which is electrically connected to the switch 6. A plurality of mounting holes 62 are provided on the warning light 61. If the main pressure plate 1 drops due to the wear of the elastic buffer strip 2 and the weight of the middle locking mechanism or the vibration generated during movement, the emergency buffer strip 52 is slowly brought into contact with the track 3, and finally the connecting plate 51 is completely fitted with one side of the connecting frame 4, providing support for the connecting plate 51 and the emergency buffer strip 52. During the movement of the main pressure plate 1, the emergency buffer strip 52 will be driven to move on the track 3, and the worn elastic buffer strip 2 and the emergency buffer strip 52 will be used to contact the track 3, share the squeezing force of the elastic buffer strip 2, and provide an emergency buffering effect. The trigger pressure plate 53 will squeeze and trigger the switch 6 under continuous movement, thereby turning on the warning light 61, so that the warning light 61 generates light to remind the staff. The warning light 61 can be installed in a conspicuous position on the double-box sling by using the mounting holes 62 and the bolts. The remaining features are the same as those in Example 1.

[0027] The working principle is as follows: turn on the motor 48, the output end of the motor 48 will drive the connecting shaft 49 to rotate, and the rotating connecting shaft 49 will drive the spiral piece 410 to do a circular motion, so that the spiral piece 410 can push the grease in the grease tank 43 to move, so that the grease enters the stainless steel bellows 46 through the threaded nozzle 44 and the docking nozzle 45, and finally is pushed to the moving track of the elastic buffer strip 2 through the stainless steel bellows 46, that is, the track 3. In the process of the movement of the middle locking mechanism, the main pressure plate 1 will drive the elastic buffer strip 2 and the grease applied. The grease is evenly applied under the repeated movement of the elastic buffer strip 2 to achieve the effect of automatic lubrication. The stainless steel bellows 46 can also be adjusted to adjust its position and used in alignment with the lubrication hole. The grease tank 43 can be screwed out from the threaded seat 42 by rotating the entire grease tank 43, and the threaded nozzle 44 can be screwed out from the docking nozzle 45 at the same time. Then, the grease tank 43 can be pulled out to achieve disassembly for maintenance or replacement. If the main pressure plate 1 is worn due to the elastic buffer strip 2 and the weight of the central locking mechanism or the vibration generated during movement, When the vehicle is lowered due to the driving reason, the emergency buffer strip 52 is slowly brought into contact with the track 3. Continuous lowering will cause the emergency buffer strip 52 to be squeezed by the track 3 and drive the connecting plate 51 to move. The connecting plate 51 will drive the slide bar 5 to slide in the sliding hole 55, thereby limiting the moving direction of the connecting plate 51. The moving connecting plate 51 will drive the trigger pressure plate 53 to slide in the movable groove 54 and stretch the spring 56, finally making the connecting plate 51 completely fit with one side of the connecting frame 4, providing support for the connecting plate 51 and the emergency buffer strip 52. During the process, the emergency buffer strip 52 will be driven to move on the track 3, and the worn elastic buffer strip 2 and the emergency buffer strip 52 will be used to contact the track 3 to share the squeezing force on the elastic buffer strip 2 and provide an emergency buffering effect. At the same time, the continuous movement of the trigger pressure plate 53 will squeeze and trigger the switch 6, thereby turning on the warning light 61, making the warning light 61 produce light to remind the staff to replace the worn elastic buffer strip 2 in time. The warning light 61 can be installed in a conspicuous position on the double-box sling by using the mounting hole 62 and the bolt.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buffer pressure plate device of a locking mechanism of a double-lift sling, comprising a main pressure plate (1), wherein the main pressure plate (1) is provided with an elastic buffer strip (2); characterized in that: A track (3) is movably mounted on the elastic buffer strip (2); a connecting frame (4) is fixedly mounted on one side of the main pressure plate (1); a lubrication structure is mounted on the connecting frame (4); a plurality of slide bars (5) are slidably mounted on the connecting frame (4); an emergency buffer structure is mounted on the slide bars (5); a switch (6) is fixedly mounted on the inner wall of the connecting frame (4); and a warning structure is mounted on the switch (6); The lubrication structure comprises a mounting seat (41) and a threaded seat (42), the mounting seat (41) and the threaded seat (42) are both fixedly mounted on one side of the connecting frame (4), a grease tank (43) is movably mounted on the inner wall of the mounting seat (41), the outer surface of the grease tank (43) is provided with threads, the grease tank (43) is threadedly mounted on the inner wall of the threaded seat (42), a threaded nozzle (44) is fixedly mounted on the grease tank (43), the threaded nozzle (44) is connected to the grease tank (43), a docking nozzle (45) is threadedly mounted on the threaded nozzle (44), and a docking nozzle (45) is fixedly mounted on the docking nozzle (45). A stainless steel bellows (46) is installed, the butt nozzle (45) is connected to the stainless steel bellows (46), a fixing seat (47) is fixedly installed on the stainless steel bellows (46), the fixing seat (47) is fixedly installed on one side of the connecting frame (4), a motor (48) is fixedly installed on one side of the grease tank (43), a connecting shaft (49) is fixedly installed on the output end of the motor (48), the connecting shaft (49) is rotatably installed on the grease tank (43), a spiral piece (410) is fixedly installed on the connecting shaft (49), and the spiral piece (410) contacts the inner wall of the grease tank (43).

2. The buffer pressure plate device of the locking mechanism of a double-lift sling according to claim 1, characterized in that: The emergency buffer structure comprises a connecting plate (51), the connecting plate (51) is fixedly mounted on one end of the slide bar (5), a trigger pressure plate (53) is fixedly mounted on the other end of the slide bar (5), the trigger pressure plate (53) is located on one side of the switch (6), the trigger pressure plate (53) is slidably mounted on the inner wall of the connecting frame (4), an emergency buffer strip (52) is fixedly mounted on one side of the connecting plate (51), and the emergency buffer strip (52) is adapted to the track (3).

3. The buffer pressure plate device of the locking mechanism of a double-lift sling according to claim 1, characterized in that: The inner wall of the connecting frame (4) is provided with a movable groove (54), the trigger pressure plate (53) is slidably installed in the movable groove (54), and the switch (6) is fixedly installed on the inner wall of the movable groove (54).

4. The buffer pressure plate device of the locking mechanism of a double-lift sling according to claim 3 is characterized in that: The inner wall of the movable groove (54) is provided with a plurality of sliding holes (55), and the sliding rod (5) is slidably installed in a corresponding sliding hole (55).

5. The buffer pressure plate device of the locking mechanism of a double-lift sling according to claim 1, characterized in that: A spring (56) is slidably sleeved on the slide bar (5), one end of the spring (56) is fixedly mounted on the inner wall of the movable groove (54), and the other end of the spring (56) is fixedly mounted on one side of the trigger pressure plate (53).

6. The buffer pressure plate device of the locking mechanism of a double-lift sling according to claim 1, characterized in that: The warning structure comprises a warning light (61), the warning light (61) is electrically connected to the switch (6), and a plurality of mounting holes (62) are provided on the warning light (61).

7. The buffer pressure plate device of the locking mechanism of a double-lift sling according to claim 1, characterized in that: A feed pipe (411) is fixedly mounted on the lubricating grease tank (43), the feed pipe (411) is connected to the lubricating grease tank (43), and a sealing cover (412) is threadedly mounted on the feed pipe (411).

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