Container lifting appliance

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a container lifting appliance which comprises a main body frame, a driving assembly, a plurality of locking assemblies and a first sensing assembly used for sensing grounding, a plurality of locking tables are arranged on the peripheral side of the main body frame, and the locking assemblies are movably arranged at the bottoms of the locking tables in a penetrating mode respectively. The first sensing assembly is movably arranged at the bottom of the locking table in a penetrating mode, the driving assembly is arranged on the main body frame, and the driving assembly is connected with the locking assembly. According to the utility model, through the arrangement of the first sensing assembly, when the lifting appliance is in contact with the container, timely feedback is realized, and the accurate position of the locking assembly inserted into the container lock hole is ensured, so that the stable connection between the locking assembly and the container is ensured, and the connection stability between the lifting appliance and the container is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lifting appliance technical field, more specifically, relate to a container lifting appliance. BACKGROUND

[0002] The container lifting appliance is the core equipment in the port loading and unloading operation, and is mainly used for the grabbing, hoisting and positioning of the container. Its working principle is that the locking mechanism on both sides of the lifting appliance main body is matched with the standard lock hole in the four corners of the container to realize quick locking and releasing. Specifically, the rotating pin of the lifting appliance serves as a key component, is usually driven by hydraulic pressure or electricity, is rotated by a certain angle (usually 90 or 180) after being inserted into the lock hole of the container, and forms a rigid connection by using the mechanical engagement between the pin shaft and the inner wall of the lock hole, so as to ensure the stability of the container in the hoisting process.

[0003] A container lifting appliance is disclosed in a Chinese patent, which comprises a lifting appliance main body, a side shifting device connected with the lifting appliance main body and used for controlling the side shifting of the lifting appliance main body on the horizontal plane, and an inclination device connected with the lifting appliance main body and used for controlling the inclination of the lifting appliance main body in the vertical plane. The container lifting appliance further comprises a linkage device used for controlling the linkage of the side shifting device with the inclination device, so that the center of gravity of the lifting appliance remains unchanged during the inclination of the lifting appliance. However, this lifting appliance has a problem that whether the lifting appliance falls to the appropriate position matched with the container cannot be determined, and if the falling height is insufficient, the lock of the lifting appliance cannot be inserted into the accurate clamping position of the lock hole, and there is a risk of loosening. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the inaccuracy of the prior art, and provides a container lifting appliance, which can ensure the accurate falling height of the lifting appliance and improve the connection stability of the lifting appliance and the container.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] The utility model provides a container lifting appliance, which comprises a main frame, a driving assembly, a plurality of locking assemblies and a first sensing assembly used for sensing the bottom touch, the main frame is provided with a plurality of locking tables on the side, the plurality of locking assemblies are movably arranged in the bottom of the locking table respectively, the first sensing assembly is movably arranged in the bottom of the locking table, the driving assembly is arranged on the main frame, and the driving assembly is connected with the locking assembly.

[0007] Through the arrangement, when the container needs to be hoisted, the crane is connected with the main frame, the container spreader is moved to above the container by the crane, and the locking table is aligned with the lock hole on the container; then the locking table on the main frame and the crane lower the main frame, the locking assembly on the locking table is inserted into the lock hole until the bottom of the locking table abuts against the container, at this time, the locking assembly is completely inserted into the lock hole, the first sensing assembly on the bottom of the locking table also abuts against the container, the first sensing assembly senses the accurate position and sends a signal, the driving assembly works to drive the locking assembly to act and lock with the lock hole, through the sensing of the position of the first sensing assembly, the locking assembly is ensured to be completely inserted into the lock hole, the connection position relationship between the locking assembly and the lock hole is ensured to be accurate, thereby improving the locking effect and the connection stability between the spreader and the container.

[0008] Preferably, the locking assembly comprises a mounting cylinder, a locking pin and a rotating ring, the mounting cylinder is arranged in the locking table and fixedly connected with the locking table, the locking pin is rotatably arranged in the mounting cylinder, the bottom of the locking pin is further provided with a locking head for clamping with the container, and the rotating ring is fixedly sleeved on the top of the locking pin and connected with the driving assembly.

[0009] Through the arrangement, when the locking assembly is completely inserted into the lock hole, the driving assembly works to drive the rotating ring to rotate, the rotating ring drives the locking pin to rotate, the locking head at the bottom of the locking pin rotates by 90°, so that the locking head is clamped with the lock hole of the container, at this time, the top of the locking head is clamped with the inside of the lock hole and cannot be taken out of the lock hole, thereby ensuring that the locking assembly is tightly connected with the lock hole.

[0010] Preferably, the first sensing assembly comprises a lifting head and a first sensor, the lifting head is slidably arranged in the locking table, the first sensor is fixedly connected with the main frame and located above the lifting head, when being in the first state, the bottom of the lifting head protrudes from the locking table, and the top of the lifting head has a gap with the first sensor; when being in the second state, the top of the lifting head abuts against the first sensor.

[0011] The first state refers to a state that the container spreader is not connected with the container, and the second state refers to a state that the container spreader is in abutment with the container, at which time the locking assembly is completely inserted into the container lock hole. Through the setting mode, when the container spreader moves towards the container, the locking assembly is inserted into the lock hole, the lifting head is in abutment with the top of the container, the lifting head is moved upwards relative to the locking table under the support of the container, when the locking assembly is completely inserted into the lock hole, the bottom of the locking table is in abutment with the upper part of the container, the bottom of the lifting head is completely retracted into the locking table, the top of the lifting head is in abutment with the first sensor, at which time it is determined that the container spreader is positioned in place, the locking assembly performs a locking action, and is fully clamped with the lock hole, thereby avoiding that the locking assembly cannot be connected due to inaccurate positioning of the spreader.

[0012] Preferably, a limiting ring and a groove are further arranged on the lifting head, the groove is located below the limiting ring, and a limiting cam is arranged on the locking pin; when in the first state, the limiting ring is in abutment with the limiting cam; when in the second state, the groove is at the same height as the limiting ring.

[0013] Through the setting mode, when in the first state, the limiting ring on the lifting head can also limit the rotation of the locking pin, so as to ensure that the locking head enters the lock hole in a correct posture, when the spreader is in abutment with the container, the lifting head is lifted, at which time the limiting ring is located above the limiting cam, the groove is at the same height as the limiting ring, the limiting ring is not limited, and at this time the locking pin can be rotated.

[0014] Preferably, the driving assembly comprises a driving machine, a guide block, a guide plate and a transmission rod, the driving machine is provided with a movable rod, the driving machine and the guide plate are arranged in the main body frame, a guide groove is formed in the guide plate, the guide block is in sliding connection with the guide groove, the movable rod is in rotational connection with the guide block, the guide block is further in fixed connection with the transmission rod, and the end of the transmission rod is connected with the locking assembly.

[0015] Through the setting mode, when it is necessary to drive the locking pin to rotate, the movable rod of the driving machine is in telescopic motion, the guide block moves along the guide groove under the pushing of the movable rod, and then drives the transmission rod to move, the transmission rod drives the structure on the locking assembly to move, so as to control the locking of the locking assembly.

[0016] Preferably, the two ends of the transmission rod are respectively in rotational connection with the rotating rings in the two groups of locking assemblies.

[0017] Preferably, the guide groove is in an arc shape. By this arrangement, the arc-shaped guide groove allows the guide block to slide along the arc, and in turn drives the transmission rod to move along the arc, the end of the transmission rod is connected with the rotating ring of the locking assembly, and the arc-shaped movement of the transmission rod drives the rotating ring to rotate.

[0018] Preferably, the driving machine further comprises a gas pump and a cylinder, the gas pump is in communication with the cylinder, and the movable rod and the cylinder form a piston pair.

[0019] By this arrangement, when it is needed to drive the movable rod to extend or retract, the gas pump supplies or extracts gas into the cylinder, thereby controlling the extension or retraction of the movable rod.

[0020] Preferably, a second inductor and a third inductor are further included, the transmission rod is provided with an inductive sheet, the inductive sheet is located between the second inductor and the third inductor, in the first state, the inductive sheet abuts against the second inductor, and in the second state, the inductive sheet abuts against the third inductor.

[0021] By this arrangement, the second inductor and the third inductor can respectively sense the movement position of the transmission rod, thereby judging whether the locking pin is completely rotated, and further judging whether the locking or resetting is achieved, preventing the falling or jamming caused by insufficient locking or resetting, and improving the control accuracy of the container spreader.

[0022] Preferably, the main frame is in a day shape, and the locking platforms are respectively located at the four ends of the main frame.

[0023] By this arrangement, the structural strength of the main frame is improved.

[0024] Preferably, an inspection window is further formed in the main frame, and the inspection window is located beside the driving assembly.

[0025] By this arrangement, the user can conveniently install or inspect the driving assembly.

[0026] Preferably, a cable frame is further included, and the cable frame is fixedly arranged on the main frame. By this arrangement, a storage position for the control cable can be provided during the lifting of the container spreader, and the winding of the cable during work is avoided.

[0027] Compared with the prior art, the utility model has the advantages that:

[0028] (1) By the arrangement of the first inductive assembly, timely feedback is achieved when the spreader contacts the container, the accurate position of the locking assembly inserted into the container lock hole is ensured, the stability of the connection between the locking assembly and the container is ensured, and the connection stability of the spreader and the container is improved.

[0029] (2) Through the setting of the limiting ring and the limiting cam, the reset of the locking pin is ensured to be accurate, and the locking head is prevented from being stuck during the process of being inserted into or pulled out of the lock hole.

[0030] (3) Through the setting mode of the driving assembly, one driving assembly can drive two groups of locking assemblies at the same time, thereby saving cost and reducing the load of the lifting appliance.

[0031] (4) Through the setting of the second inductor and the third inductor, the incomplete locking or resetting caused by incomplete driving is avoided, and the accuracy and safety of the driving assembly in controlling the locking assembly are improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a whole structure schematic view of the container lifting appliance of the utility model;

[0033] Figure 2 It is an internal structure schematic view of the container lifting appliance of the utility model;

[0034] Figure 3 It is a first inductive assembly structure schematic view of the container lifting appliance of the utility model;

[0035] Figure 4 It is a locking assembly structure schematic view of the container lifting appliance of the utility model;

[0036] Figure 5 It is a driving assembly structure schematic view of the container lifting appliance of the utility model.

[0037] The following is the illustration mark description:

[0038] 1, main body frame; 11, locking table; 12, maintenance window; 13, cable frame; 2, locking assembly; 21, mounting cylinder; 22, locking pin; 221, limiting cam; 23, rotating ring; 24, locking head; 3, driving assembly; 31, driving machine; 311, movable rod; 312, air cylinder; 313, air pump; 32, guide block; 33, guide plate; 331, guide groove; 34, transmission rod; 341, inductive sheet; 4, first inductive assembly; 41, lifting head; 411, limiting ring; 412, groove; 42, first inductor; 5, second inductor; 6, third inductor. DETAILED DESCRIPTION

[0039] The utility model makes further explanation in combination with specific implementation. Among them, the drawing is only for example explanation, and the representation is only schematic diagram, and cannot be understood as the limitation to this patent; in order to better illustrate the embodiment of the utility model, some components of the drawing can be omitted, enlarged or reduced, and it does not represent the size of actual product; for those skilled in the art, it is understandable that some well-known structures in the drawing and their description can be omitted.

[0040] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawing, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawing are only for example illustration, and cannot be understood as the limitation to this patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] Embodiment 1

[0042] As Figures 1 to 4 It is the first embodiment of a container spreader of the utility model, including main frame 1, drive assembly 3, several locking assemblies 2 and the first sensing assembly 4 for inductive bottom, and the main frame 1 side is equipped with several locking platforms 11, several locking assemblies 2 are respectively movably arranged in the bottom of locking platform 11, the first sensing assembly 4 is movably arranged in the bottom of locking platform 11, and drive assembly 3 is arranged on the main frame 1, and drive assembly 3 is connected with locking assembly 2.

[0043] Through this setting mode, when the container needs to be hoisted, first, the crane is connected with the main frame 1, then the container spreader is moved to the upper of the container by the crane, and the locking platform 11 is aligned with the lock hole on the container; then the locking platform 11 on the main frame 1 is lowered with the crane, the locking assembly 2 on the locking platform 11 is inserted into the lock hole, until the bottom of the locking platform 11 abuts against the container, at this time, the locking assembly 2 is completely inserted into the lock hole, and the first sensing assembly 4 at the bottom of the locking platform 11 also abuts against the container, the first sensing assembly 4 senses the accurate position, sends a signal, drive assembly 3 works, drives the locking assembly 2 to act and lock with the lock hole, through the sensing of the first sensing assembly 4 to the position, it is guaranteed that the locking assembly 2 is completely inserted into the lock hole, and it is ensured that the connection positional relationship of the locking assembly 2 and the lock hole is accurate, thereby improving the locking effect and the connection stability between the spreader and the container.

[0044] As an embodiment of the utility model, the locking assembly 2 comprises a mounting cylinder 21, a locking pin 22 and a rotating ring 23, the mounting cylinder 21 is arranged in the locking platform 11 and is fixedly connected with the locking platform 11, the locking pin 22 is rotatably arranged in the mounting cylinder 21, the bottom of the locking pin 22 is further provided with a locking head 24 for clamping the container, and the rotating ring 23 is fixedly arranged on the top of the locking pin 22 and is further connected with the driving assembly 3.

[0045] Through the arrangement, when the locking assembly 2 is completely inserted into the lock hole, the driving assembly 3 works to drive the rotating ring 23 to rotate, the rotating ring 23 drives the locking pin 22 to rotate, the locking head 24 at the bottom of the locking pin 22 rotates by 90 degrees, so that the locking head 24 is clamped with the lock hole of the container, at this time, the top of the locking head 24 is clamped with the inside of the lock hole and cannot be taken out of the lock hole, thereby ensuring that the locking assembly 2 is tightly connected with the lock hole.

[0046] As an embodiment of the utility model, the first sensing assembly 4 comprises a lifting head 41 and a first sensor 42, the lifting head 41 is slidably arranged in the locking platform 11, the first sensor 42 is fixedly connected with the main frame 1 and is located above the lifting head 41, when being in the first state, the bottom of the lifting head 41 protrudes from the locking platform 11, and the top of the lifting head 41 is spaced apart from the first sensor 42; when being in the second state, the top of the lifting head 41 abuts against the first sensor 42.

[0047] The first state refers to a state that the container spreader is not connected with the container, and the second state refers to a state that the container spreader abuts against the container, at this time, the locking assembly 2 is completely inserted into the lock hole of the container. Through the arrangement, when the container spreader moves towards the container, the locking assembly 2 is inserted into the lock hole, the lifting head 41 abuts against the top of the container, and the lifting head 41 is supported by the container and moves upwards relative to the locking platform 11; when the locking assembly 2 is completely inserted into the lock hole, the bottom of the locking platform 11 abuts against the upper part of the container, the bottom of the lifting head 41 is completely retracted into the locking platform 11, and the top of the lifting head 41 abuts against the first sensor 42, at this time, it is determined that the position of the container spreader is installed in place, the locking assembly 2 performs a locking action and is fully clamped with the lock hole, thereby avoiding that the locking assembly 2 cannot be connected due to inaccurate positioning of the spreader.

[0048] As an embodiment of the utility model, the lifting head 41 is further provided with a limiting ring 411 and a groove 412, the groove 412 is located below the limiting ring 411, and the locking pin 22 is provided with a limiting cam 221; when being in the first state, the limiting ring 411 abuts against the limiting cam 221; when being in the second state, the groove 412 and the limiting ring 411 are at the same height.

[0049] Through the setting mode, when in the first state, the limiting ring 411 on the lifting head 41 can also limit the rotation of the locking pin 22, and ensure that the locking head 24 enters the locking hole in the correct posture, when the spreader is attached to the container, the lifting head 41 is lifted up, at this time, the limiting ring 411 is located above the limiting cam 221, the groove 412 is at the same height with the limiting ring 411, the limiting ring 411 is not limited, at this time, the locking pin 22 can rotate.

[0050] Embodiment 2

[0051] As Figure 5 The second embodiment of the container spreader is shown, which is similar to the first embodiment, and the difference is that the driving assembly 3 is further limited.

[0052] As an embodiment of the utility model, the driving assembly 3 includes a driving machine 31, a guide block 32, a guide plate 33 and a transmission rod 34, the driving machine 31 is provided with a movable rod 311, the driving machine 31 and the guide plate 33 are both arranged in the main body frame 1, the guide plate 33 is provided with a guide groove 331, the guide block 32 is slidably connected with the guide groove 331, the movable rod 311 is rotatably connected with the guide block 32, the guide block 32 is further fixedly connected with the transmission rod 34, and the end of the transmission rod 34 is connected with the locking assembly 2.

[0053] Through the setting mode, when the locking pin 22 needs to be driven to rotate, the movable rod 311 of the driving machine 31 is extended or retracted, the guide block 32 is driven to move along the guide groove 331 under the pushing of the movable rod 311, and then the transmission rod 34 is driven to move, so that the structure on the locking assembly 2 is driven to move, thereby controlling the locking of the locking assembly 2.

[0054] As an embodiment of the utility model, the two ends of the transmission rod 34 are rotatably connected with the rotating rings 23 in the two groups of locking assemblies 2, and the guide groove 331 is in an arc shape. Through the setting mode, the arc-shaped guide groove 331 enables the guide block 32 to slide along the arc, and then drives the transmission rod 34 to move along the arc, the end of the transmission rod 34 is connected with the rotating ring 23 of the locking assembly 2, and the arc-shaped transmission rod 34 drives the rotating ring 23 to rotate.

[0055] As an embodiment of the utility model, the driving machine 31 further includes an air pump 313 and an air cylinder 312, the air pump 313 is communicated with the air cylinder 312, and the movable rod 311 and the air cylinder 312 form a piston pair.

[0056] Through the setting mode, when the movable rod 311 needs to be driven to extend or retract, the air pump 313 inputs or extracts air into the air cylinder 312, so as to control the extension or retraction of the movable rod 311.

[0057] As an embodiment of the utility model, still include second inductor 5 and third inductor 6, transmission rod 34 is equipped with inductive sheet 341, inductive sheet 341 is located between second inductor 5 and third inductor 6, first state, inductive sheet 341 and second inductor 5 abut, second state, inductive sheet 341 and third inductor 6 abut.

[0058] Through this setting mode, second inductor 5 and third inductor 6 can respectively induct the movement position of transmission rod 34, to judge whether the locking pin 22 rotates completely, further judge whether to realize locking or reset, prevent the shedding or jamming caused by the locking pin 22 locking insufficiently or resetting not in place, improve the control accuracy of container spreader.

[0059] Example 3

[0060] The following is a third embodiment of a container spreader of the utility model, and the embodiment is similar to example 2, and the difference lies in that the main frame 1 is further limited.

[0061] As an embodiment of the utility model, the main frame 1 is a day-shaped structure, and the locking platform 11 is located at the four end portions of the main frame 1.

[0062] Through this setting mode, it is favorable to improve the structural strength of the main frame 1.

[0063] As an embodiment of the utility model, the main frame 1 is further provided with an inspection window 12, and the inspection window 12 is located beside the driving assembly 3.

[0064] Through this setting mode, it is convenient for the user to install or overhaul the driving assembly 3.

[0065] As an embodiment of the utility model, it further includes a cable frame 13, and the cable frame 13 is fixedly arranged on the main frame 1. Through this setting mode, the control cable can be provided with a storage position during the lifting of the container spreader, to avoid the winding of the cable during work.

[0066] Obviously, the above embodiment of the utility model is only an example for clearly illustrating the utility model, and is not the limitation of the embodiment of the utility model. For ordinary skilled person in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A container spreader, characterized in that, The utility model provides a container locking device, including main body frame (1), a plurality of locking assembly (2), drive assembly (3) and first sensing assembly (4) for inductive bottom, the main body frame (1) side is equipped with a plurality of locking platform (11), a plurality of locking assembly (2) respectively active and are equipped with in the bottom of locking platform (11), first sensing assembly (4) active and are equipped with in the bottom of locking platform (11), drive assembly (3) is installed on the main body frame (1), and drive assembly (3) is connected with locking assembly (2).

2. The container spreader as claimed in claim 1, characterized in that The locking assembly (2) includes a mounting cylinder (21), a locking pin (22), and a rotating ring (23), the mounting cylinder (21) is equipped with in the locking platform (11) and is fixedly connected with the locking platform (11), the locking pin (22) is rotatably equipped in the mounting cylinder (21), the bottom of the locking pin (22) is further provided with a locking head (24) for clamping the container, and the rotating ring (23) is fixedly sleeved on the top of the locking pin (22), and the rotating ring (23) is further connected with the drive assembly (3).

3. The container spreader as claimed in claim 2, characterized in that The first sensing assembly (4) includes a lifting head (41) and a first sensor (42), the lifting head (41) is slidably equipped in the locking platform (11), the first sensor (42) is fixedly connected with the main body frame (1) and located above the lifting head (41), when being in a first state, the bottom of the lifting head (41) protrudes from the locking platform (11), and the top of the lifting head (41) has a gap with the first sensor (42); when being in a second state, the top of the lifting head (41) abuts against the first sensor (42).

4. The container spreader as claimed in claim 3, characterized in that The lifting head (41) is further provided with a limiting ring (411) and a groove (412), the groove (412) is located below the limiting ring (411), and the locking pin (22) is provided with a limiting cam (221); when being in a first state, the limiting ring (411) abuts against the limiting cam (221); when being in a second state, the groove (412) is at the same height as the limiting ring (411).

5. The container spreader as claimed in claim 1, characterized in that, The drive assembly (3) includes a drive machine (31), a guide block (32), a guide plate (33), and a transmission rod (34), the drive machine (31) is provided with a movable rod (311), the drive machine (31) and the guide plate (33) are both installed in the main body frame (1), the guide plate (33) is provided with a guide groove (331), the guide block (32) is slidably connected with the guide groove (331), the movable rod (311) is rotatably connected with the guide block (32), the guide block (32) is further fixedly connected with the transmission rod (34), and the end of the transmission rod (34) is connected with the locking assembly (2).

6. The container spreader as claimed in claim 5, characterized in that The drive machine (31) further includes an air pump (313) and an air cylinder (312), the air pump (313) is communicated with the air cylinder (312), and the movable rod (311) forms a piston pair with the air cylinder (312).

7. The container spreader as claimed in claim 5, characterized in that Second sensor (5) and third sensor (6) are further included, the transmission rod (34) is provided with an induction sheet (341), the induction sheet (341) is located between the second sensor (5) and the third sensor (6), the first state, the induction sheet (341) is in abutment with the second sensor (5), the second state, the induction sheet (341) is in abutment with the third sensor (6).

8. A container spreader according to any one of claims 1 to 6, characterized in that, The main frame (1) is a day-shaped structure, and the locking platforms (11) are located at the four ends of the main frame (1) respectively.

9. The container spreader as claimed in claim 8, characterized in that The main frame (1) is further provided with an inspection window (12) beside the driving assembly (3).

10. The container spreader as claimed in claim 1, characterized in that Further comprising a cable frame (13), the cable frame (13) is fixedly arranged on the main frame (1).

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