Folding arm type marine crane

Abstract

The utility model relates to the field of marine cranes, and discloses a folding arm type marine crane which comprises a positioning plate, the top of the positioning plate is fixedly connected with a protective shell, a motor is fixedly installed on the inner bottom wall of the protective shell, an output shaft of the motor is fixedly connected with a screw shaft through a coupler, and the screw shaft is fixedly connected with a connecting rod. The outer wall of the screw shaft is movably connected with a lifting block, and the outer wall of the lifting block is fixedly connected with a limiting block. According to the folding arm type marine crane, through the arrangement of the protective shell, the motor, the screw shaft, the lifting block, the base, the crane body, the arm plate, the fixing block, the hydraulic push rod and the connecting plate, the crane can have the effect of being convenient to fold, and the overall height of the crane can be correspondingly reduced and adjusted in a simple and rapid mode; and then the hydraulic push rod is used for retracting and folding different arm plates, so that the overall size of the crane is reduced, the occupied area of the crane is reduced, and the use requirements of people are met.

Description

Technical Field

[0001] The utility model relates to the field of ship cranes, in particular to a folding arm type ship crane. Background Art

[0002] The ship crane is a highly efficient transport equipment that integrates lifting and transportation. It can not only lift but also carry cargo, and is flexible and maneuverable. It can also be equipped with additional devices to have special functions such as grabbing rods, bulk materials, and manned work buckets, which greatly expands its use functions and truly realizes the characteristics of multi-functionality, high efficiency and maneuverability.

[0003] The existing technology has the following problems:

[0004] In the prior art, the ship crane is not easy to fold. Because the ship crane has many structures and a large volume, occupies a large area and has a bulky structure, its boom is difficult to fold and shrink. Therefore, the surrounding space of the ship crane will be greatly affected after its installation, and it has certain usage limitations. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a folding-arm marine crane, which has the advantages of being easy to fold and solves the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of easy folding, the utility model provides the following technical solutions: a folding-arm marine crane, comprising a positioning plate, the top of the positioning plate is fixedly connected to a protective shell, the inner bottom wall of the protective shell is fixedly installed with a motor, the output shaft of the motor is fixedly connected to a wire shaft through a coupling, the outer wall of the wire shaft is movably connected to a lifting block, the outer wall of the lifting block is fixedly connected to a limiting block, the top of the lifting block is fixedly connected to a base, and the top of the base is fixedly installed with a crane body.

[0009] An arm plate is movably installed on one side of the crane body, a fixed block is fixedly connected to one side of the arm plate, a hydraulic push rod is fixedly installed on one side of the fixed block, and the hydraulic push rod, one end of the hydraulic push rod is fixedly connected to a connecting plate, and one side of the arm plate is fixedly connected to a hook, so that the crane can be easily folded, and the overall height of the crane can be lowered and adjusted accordingly in a simple and quick way, and then the hydraulic push rod is used to retract and fold different arm plates, so that the overall volume of the crane is reduced, thereby reducing its occupied area and meeting people's usage needs.

[0010] Preferably, a transmission groove is provided at the bottom end of the lifting block, and the lifting block is movably connected to the wire shaft through the transmission groove, and the transmission groove enables the wire shaft to be rotated to adjust the lifting and lowering of the lifting block.

[0011] Preferably, a movable groove is provided on the inner wall of the arm plate, and the movable groove enables the arm plate of smaller specifications to enter the interior of the arm plate of larger specifications after retracting, thereby forming a folding contraction operation.

[0012] Preferably, a limiting groove is provided on the front side of the protective shell, and the shape and size of the limiting groove match those of the limiting block. The limiting groove cooperates with the limiting block to provide a limiting effect to the lifting block, so that the lifting block can avoid rotation problems while being lifted and lowered through the transmission groove, and is guided by the transmission groove, ensuring that the lifting block can only move in a specific direction during the lifting process and avoids rotation.

[0013] Preferably, the number of the limiting grooves is two, and the two limiting grooves are symmetrically arranged with the vertical center line of the protective shell as the symmetry axis, and the two limiting grooves provide more limiting angles.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a folding arm marine crane having the following

[0016] Beneficial effects:

[0017] The folding-arm marine crane can be easily folded by means of the protective shell, motor, wire shaft, lifting block, base, crane body, arm plate, fixing block, hydraulic push rod and connecting plate. The height of the entire crane can be lowered and adjusted accordingly in a simple and quick manner, and then the hydraulic push rod can be used to retract and fold different arm plates. In this way, the overall volume of the crane is reduced, thereby reducing its occupied area and meeting people's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the arm plate of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting block of the utility model.

[0022] In the figure: 1. positioning plate; 2. protective shell; 3. motor; 4. wire shaft; 5. lifting block; 6. limit block; 7. base; 8. crane body; 9. arm plate; 10. fixing block; 11. hydraulic push rod; 12. connecting plate; 13. hook. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] The preferred embodiment of the folding arm type marine crane provided by the utility model is as follows: Figures 1 to 4 As shown: a folding arm marine crane comprises a positioning plate 1, a protective shell 2 is fixedly connected to the top of the positioning plate 1, a motor 3 is fixedly installed on the inner bottom wall of the protective shell 2, an output shaft of the motor 3 is fixedly connected to a wire shaft 4 through a coupling, a lifting block 5 is movably connected to the outer wall of the wire shaft 4, a limiting block 6 is fixedly connected to the outer wall of the lifting block 5, a base 7 is fixedly connected to the top of the base 7, and a crane body 8 is fixedly installed on the top of the base 7.

[0026] A boom 9 is movably installed on one side of the crane body 8, a fixing block 10 is fixedly connected to one side of the boom 9, a hydraulic push rod 11 is fixedly installed on one side of the fixing block 10, the hydraulic push rod 11, one end of the hydraulic push rod 11 is fixedly connected to a connecting plate 12, and a hook 13 is fixedly connected to one side of the boom 9, so that the crane can be easily folded, and the overall height of the crane can be lowered and adjusted in a simple and quick way, and then the hydraulic push rod 11 is used to retract and fold different booms 9, so that the overall volume of the crane is reduced, thereby reducing its occupied area, meeting people's usage needs.

[0027] In this embodiment, a transmission groove is provided at the bottom end of the lifting block 5, and the lifting block 5 is movably connected to the wire shaft 4 through the transmission groove. The transmission groove allows the wire shaft 4 to be rotatably raised and lowered to adjust the lifting block 5.

[0028] In this embodiment, a movable groove is provided on the inner wall of the arm plate 9, and the movable groove enables the arm plate 9 of a smaller size to enter the inside of the arm plate 9 of a larger size after being retracted, thereby forming a folding contraction operation.

[0029] Example 2

[0030] On the basis of Example 1, a preferred embodiment of the folding arm type marine crane provided by the utility model is as follows: Figures 1 to 4 As shown: a limiting groove is provided on the front of the protective shell 2, and the shape and size of the limiting groove match the shape and size of the limiting block 6. The limiting groove cooperates with the limiting block 6 to provide a limiting effect to the lifting block 5, so that the lifting block 5 can avoid rotation problems while being lifted and lowered through the transmission groove, and is guided by the transmission groove, ensuring that the lifting block 5 can only move in a specific direction during the lifting process and avoids rotation.

[0031] In this embodiment, there are two limiting grooves, and the two limiting grooves are symmetrically arranged with the vertical center line of the protective shell 2 as the symmetry axis, and the two limiting grooves provide more limiting angles.

[0032] When in use, the motor 3 can be turned on, and the motor 3 drives the wire shaft 4 to rotate. The wire shaft 4 retracts the lifting block 5 into the inside of the protective shell 2 through the transmission groove, so as to lower the height of the entire crane. Then the hydraulic push rod 11 is turned on, and the hydraulic push rod 11 drives the connecting plate 12 to retract, so that the smaller arm plate 9 can be retracted into the inside of the larger arm plate 9. In this way, a folding retraction operation is performed on multiple arm plates 9 to complete the work.

[0033] In summary, the folding-arm marine crane can be easily folded. The height of the entire crane can be lowered and adjusted in a simple and quick manner, and then the hydraulic push rod 11 is used to retract and fold the different arm plates 9. In this way, the overall volume of the crane is reduced, thereby reducing its occupied area and meeting people's usage needs.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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 folding arm marine crane, comprising a positioning plate (1), characterized in that: The top of the positioning plate (1) is fixedly connected to a protective shell (2), the inner bottom wall of the protective shell (2) is fixedly mounted with a motor (3), the output shaft of the motor (3) is fixedly connected to a thread shaft (4) via a coupling, the outer wall of the thread shaft (4) is movably connected to a lifting block (5), the outer wall of the lifting block (5) is fixedly connected to a limit block (6), the top of the lifting block (5) is fixedly connected to a base (7), and the top of the base (7) is fixedly mounted with a crane body (8); An arm plate (9) is movably mounted on one side of the crane body (8); a fixed block (10) is fixedly connected to one side of the arm plate (9); a hydraulic push rod (11) is fixedly mounted on one side of the fixed block (10); one end of the hydraulic push rod (11) is fixedly connected to a connecting plate (12); and a hook (13) is fixedly connected to one side of the arm plate (9).

2. A folding arm marine crane according to claim 1, characterized in that: A transmission groove is provided at the bottom end of the lifting block (5), and the lifting block (5) is movably connected to the wire shaft (4) via the transmission groove.

3. The folding arm marine crane according to claim 1, characterized in that: The inner wall of the arm plate (9) is provided with a movable groove.

4. The folding arm marine crane according to claim 1, characterized in that: A limiting groove is provided on the front side of the protective shell (2), and the shape and size of the limiting groove match the shape and size of the limiting block (6).

5. A folding arm marine crane according to claim 4, characterized in that: The number of the limiting grooves is two, and the two limiting grooves are symmetrically arranged with the vertical center line of the protective shell (2) as the symmetry axis.

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