Container gantry hoisting device

Abstract

The invention belongs to the technical field of hoisting and discloses a container gantry hoisting device which comprises a base, rollers are mounted at the bottom of the base, three supporting columns are mounted at the top of the base, a hydraulic cylinder is mounted on the outer wall of the base, a driver is mounted on the outer wall of the base in some disclosure, a controller is mounted on the outer wall of the driver, and the hydraulic cylinder is mounted on the outer wall of the controller. And an operation table is mounted on the outer wall of the controller. Through the three mechanisms of dynamic tensioning of the limiting assembly, torque counteracting of the damping block and wind power induction balance weight, the problem of swinging of the lifting appliance is thoroughly solved, and the operation safety and the positioning precision in severe weather are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting and hoisting, and in particular relates to a container gantry lifting device. Background Art

[0002] Container gantry cranes are critical equipment for container loading, unloading, handling, and stacking operations at container terminals and cargo yards. Their development is closely linked to global trade, improving logistics efficiency, and the need for port automation. A container gantry crane, also known as a gantry crane, is a variant of the bridge crane and is primarily used for container loading and unloading operations in outdoor cargo and material yards. Its metal structure is a portal-shaped frame with two legs mounted below the main beam, allowing it to travel along ground tracks. It can be equipped with cantilever beams at either end, offering high site utilization and a wide operating range. Based on the main beam configuration, it is categorized as either a single-beam crane (lifting capacity ≤ 50 tons, span ≤ 35 meters) or a double-beam crane (strong load-bearing capacity and excellent stability). Derivative types include tire-mounted (RTG) cranes (RTGs) and rail-mounted cranes. The former offers flexible mobility and is equipped with variable frequency drive technology, while the latter, with spans up to 60 meters, is suitable for use in port terminals and other applications. The container gantry crane has a portal-shaped metal structure with two legs mounted below the main beam, allowing it to travel along ground tracks. It can be equipped with cantilever beams at either end, effectively improving site utilization and operating range. Its structure has the characteristics of wide adaptability and strong versatility.

[0003] In the existing technology, ports in high-latitude areas usually face relatively severe weather conditions, such as strong winds and low temperatures. The container gantry cranes used in ports are generally equipped with lifting plates, and hooks are installed under the lifting plates. The use of lifting plates can adapt to the shape of the container so that the hooks can accurately hook into the corresponding lifting rings on the container. However, when using gantry cranes in ports in high-latitude areas, there are usually strong winds blowing through the ports, which causes the lifting plates to swing when encountering strong winds. Due to the shape of the lifting plates, the side force area of ​​the lifting plates is large, which can easily cause the lifting plates to tilt. In addition, the temperature in high-latitude areas is low, and ice on the surface of the sling will increase the lifting weight. Ice on the wire rope and pulley group will cause uneven tension. The sling will tilt and swing during lifting, which will also cause the lifting structure of the sling to be blocked, affecting the lifting safety. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a container gantry lifting device, which solves the problem in the prior art that the spreader swings due to strong winds.

[0005] The object of the present invention can be achieved by the following technical solution: a container gantry lifting device includes a lifting plate, a limit assembly and a counterweight assembly;

[0006] A lifting plate, with a holder installed at both ends, and each holder is connected to two limit assemblies;

[0007] A limit assembly, wherein the limit assembly includes a driven block slidably mounted on the support column, a sliding groove matching the support column is opened on the outer wall of the driven block, a hydraulic rod is mounted on the inner wall of the driven block, a plurality of guide wheels are mounted on the inner wall of the driven block, a steel cable is mounted on the outer wall of the guide wheel, and one end of the steel cable is connected to one end of the hydraulic rod, and the other end of the steel cable is fixedly connected to the outer wall of the fixer, and one end of the fixer is fixedly connected to the outer wall of the lifting plate. When the steel cable is tightened, the lifting plate is limited and fixed;

[0008] The counterweight assembly improves the stability of the lifting platform by adding weight.

[0009] In some disclosures, a base is provided, the bottom of the base is provided with rollers, the top of the base is provided with three support columns, the outer wall of the base is provided with a hydraulic cylinder, the outer wall of the base is provided with a driver, the outer wall of the driver is provided with a controller, and the outer wall of the controller is provided with an operating table.

[0010] In some disclosures, a crossbeam is installed on the top of the support column, a guide wheel is installed on the top of the crossbeam, a steel cable is connected to the top of the hydraulic cylinder, and the steel cable is connected to a fixer through the guide wheel, and a hook is installed at the bottom of the fixer.

[0011] In some disclosures, a cleaning assembly is installed on the top of the beam, and the cleaning assembly includes a fixed shell installed on the top of the beam, an outer wall of the fixed shell is provided with an arc-shaped through hole, and an electric heating plate is installed on the outer wall of the through hole.

[0012] In some disclosures, a limit assembly is slidably installed on the outer wall of the support column, a slide rail is installed on the inner wall of the driven block, and one of the guide wheels is slidably connected on the slide rail, a gear plate is installed on the outer wall of the guide wheel, a ratchet is installed on the inner wall of the driven block, a take-up shaft is installed on the outer wall of the ratchet, a cross plate is installed on the top of the hydraulic rod, a blocking rod is installed on the top of the cross plate, a limit column is installed on the top of the cross plate through a pin shaft, and a second spring is installed on the outer wall of the limit column.

[0013] In some disclosures, a lifting plate is installed on the outer wall of the fixer, a threaded hole is opened on the outer wall of the lifting plate, and the outer wall of the lifting plate is fixedly connected to the fixer through the threaded hole and bolts. A connecting block is installed on the bottom of the lifting plate, and the inner wall of the connecting block is connected to the damping block through a pin shaft.

[0014] In some disclosures, a counterweight assembly is installed on the top of the lifting plate, and the counterweight assembly also includes a fixed box installed on the top of the lifting plate, a fixed frame is installed on the top of the fixed box, a column is installed on the top of the fixed frame, the column is hollow inside, a semicircular limit plate is installed on the top of the column, a drive shaft is placed on the top of the limit plate, and the drive shaft passes through the interior of the fixed frame, a circular through groove is opened on the outer wall of the fixed frame, and fan blades are installed around the outer wall of the drive shaft, the fan blades are located inside the through groove, and an interception net is installed on the inner wall of the through groove.

[0015] In some disclosures, a partition plate is installed on the inner wall of the fixed box, which divides the fixed box into an upper chamber and a lower chamber. A first water pump is installed on the inner wall of the upper chamber, and the input end of the first water pump is connected to an external water source, and the output end extends into the interior of the lower chamber. A second water pump is installed on the inner wall of the lower chamber, and the output end of the second water pump is connected to an external water source. A driving cavity is opened on the inner wall of the upper chamber, and a plurality of permanent magnets are installed on the inner wall of the driving cavity. A rotating shaft is installed on the inner wall of the driving cavity, and a belt is installed around the outer wall of the rotating shaft, and the belt passes through the interior of the column. The rotating shaft and the driving shaft are connected by belt drive. A rotating plate is installed on the outer wall of the rotating shaft, and an induction coil is installed on the inner wall of the rotating plate.

[0016] In some disclosures, a plurality of trigger tubes are installed on the outer wall of the rotating shaft, a return spring is installed on the inner wall of the trigger tube, a fixed block is installed at one end of the return spring, a trigger rod is installed on the top of the fixed block, a circular limiting disk is installed at the tube mouth of the trigger tube, and the aperture of the limiting disk is smaller than the diameter of the fixed block to form a limiting structure, a moving rod is installed through the outer wall of the driving cavity, a first spring is installed around the outer wall of the moving rod, and an impact plate is installed at one end of the moving rod.

[0017] In some disclosures, a detection shell is installed on the inner bottom wall of the fixed box, a fixed track is installed on the inner wall of the detection shell, a rolling ball is placed on the inner wall of the fixed track, storage boxes are installed on the outer walls of both sides of the fixed box, a telescopic rod is installed through the outer wall of the storage box, and one end of the telescopic rod is connected to the rolling ball by a cable, and a water inlet hole is opened on the outer wall of the telescopic rod.

[0018] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0019] A fixed connection is a connection in which parts or components are fixed without any relative movement;

[0020] A rotational connection is a connection between parts that allows the parts to rotate relative to each other;

[0021] Threaded connection is a detachable fixed connection with the advantages of simple structure, reliable connection, and easy assembly and disassembly. It is widely used in mechanical engineering and connection structure fields.

[0022] A sliding connection is a connection between parts that allows the parts to slide relative to each other.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention completely solves the problem of spreader swing through the triple mechanism of dynamic tensioning of the limit assembly, torque offset of the damping block, and wind-sensing counterweight, thereby improving operation safety and positioning accuracy in severe weather.

[0025] 2. The present invention triggers the transfer of counterweight by tilting, rolling the ball and storage box, so as to achieve self-balancing of the spreader and ensure smooth lifting and landing of the container.

[0026] 3. This invention systematically addresses the issues of strong wind sway and low-temperature icing faced by gantry cranes in high-latitude ports through innovative mechanical structures, limiters, dampers, counterweight linkage, intelligent response design, wind sensing, and tilt detection. Its core value lies in converting interfering winds and low temperatures into stable, controlled power, significantly improving lifting safety, precision, and energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the lifting plate structure according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the bottom structure of the lifting plate according to an embodiment of the present invention;

[0031] Figure 4 1 is a schematic diagram of the cross-sectional structure of a fixed box according to an embodiment of the present invention;

[0032] Figure 5 2. It is a schematic diagram of a top view of the driving cavity structure of an embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of the cross-sectional structure of a trigger tube according to an embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of the cross-sectional structure of a fixed shell according to an embodiment of the present invention;

[0035] Figure 8 1 is a schematic structural diagram of a driven block portion of an embodiment of the present invention;

[0036] Figure 9 This is an embodiment of the present invention Figure 8 Schematic diagram of the structure of part A;

[0037] Figure 10 2 is a schematic diagram of the cross-sectional structure of a detection shell according to an embodiment of the present invention;

[0038] Figure 11 is a partial structural diagram of a storage box according to an embodiment of the present invention;

[0039] Figure 12 2 is a schematic diagram of the moving position of the lifting plate according to an embodiment of the present invention.

[0040] In the figure: 1. base; 11. roller; 12. support column; 13. hydraulic cylinder; 2. driver; 21. controller; 22. operating table; 3. crossbeam; 31. guide wheel; 32. holder; 33. hook; 4. cleaning assembly; 40. fixing shell; 41. through hole; 42. electric heating plate; 5. limit assembly; 50. driven block; 51. slide; 52. guide wheel; 53. hydraulic rod; 54. slide rail; 55. take-up shaft; 56. ratchet; 57. cross plate; 58. blocking rod; 59. limit column; 510. second spring; 6. lifting plate; 61. threaded hole; 62. connecting block; 63. damping block ;7. Counterweight assembly;70. Fixed box;71. Fixed frame;72. Column;73. Drive shaft;74. Fan blade;75. Interception net;8. Partition plate;81. First water pump;82. Second water pump;83. Drive chamber;84. Permanent magnet;85. Rotating shaft;86. Belt;87. Rotating plate;88. Induction coil;9. Trigger tube;91. Return spring;92. Fixed block;93. Trigger rod;94. Limit plate;95. Moving rod;96. Impact plate;10. Detection shell;101. Fixed track;102. Rolling ball;103. Storage box;104. Telescopic rod;105. Water inlet. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] See also Figure 1 The container gantry lifting device includes a base 1, a roller 11 is installed at the bottom of the base 1, three support columns 12 are installed on the top of the base 1, a hydraulic cylinder 13 is installed on the outer wall of the base 1, a driver 2 is installed on the outer wall of the base 1, a controller 21 is installed on the outer wall of the driver 2, and an operating table 22 is installed on the outer wall of the controller 21.

[0043] Specifically, the extension and contraction of the hydraulic cylinder 13 drives the corresponding steel cable to move, thereby driving the lifting plate 6 to rise and fall through the movement of the steel cable, realizing the function of lifting and hoisting the container. The three support columns 12 are triangular, which can improve the stability of the support, and the rollers 11 can facilitate the movement of the equipment on the ground;

[0044] It should be noted that the driver 2 is an existing automobile drive structure, which is used to drive the roller 11 to rotate and realize the walking function. When operating the equipment, the staff stands on the operating table 22 and controls the overall operating status of the equipment through the controller 21 to realize the control function.

[0045] See also Figure 1 A crossbeam 3 is installed on the top of the support column 12, a guide wheel 31 is installed on the top of the crossbeam 3, a steel cable is connected to the top of the hydraulic cylinder 13, and the steel cable is connected to a fixer 32 through the guide wheel 31, and a hook 33 is installed at the bottom of the fixer 32.

[0046] Specifically, the hydraulic cylinder 13 extends and contracts to drive the steel cable to extend or shorten, and changes the direction of the steel cable through the guide wheel 31. Then the steel cable drives the fixer 32 and the hook 33 to rise and fall, realizing the lifting and hoisting functions.

[0047] See also Figure 1 and Figure 7 A cleaning assembly 4 is installed on the top of the beam 3. The cleaning assembly 4 includes a fixed shell 40 installed on the top of the beam 3. The outer wall of the fixed shell 40 is provided with an arc-shaped through hole 41, and the outer wall of the through hole 41 is installed with an electric heating plate 42.

[0048] Specifically, the fixed shell 40 is located above the crossbeam 3, and the steel cable passes through the through hole 41. When the steel cable moves in a telescopic manner, the through hole 41 can clean the debris on the steel cable. In winter, the lubricating oil on the steel cable can be softened by the electric heating plate 42 to prevent the lubricating oil from hardening due to cold and causing the steel cable to slip.

[0049] See also Figure 1 、 Figure 8 、 Figure 9 and Figure 12 The outer wall of the support column 12 is slidably mounted with a limit assembly 5, and the limit assembly 5 includes a driven block 50 slidably mounted on the support column 12, and the outer wall of the driven block 50 is provided with a slide groove 51 that matches the support column 12, and the inner wall of the driven block 50 is mounted with a hydraulic rod 53, and the inner wall of the driven block 50 is mounted with a plurality of guide wheels 52, and the outer wall of the guide wheel 52 is mounted with a steel cable, and one end of the steel cable is connected to one end of the hydraulic rod 53, and the other end of the steel cable is fixed to the outer wall of the holder 32. The inner wall of the driven block 50 is installed with a slide rail 54, and one of the guide wheels 52 is slidably connected on the slide rail 54, the outer wall of the guide wheel 52 is installed with a gear plate, the inner wall of the driven block 50 is installed with a ratchet 56, the outer wall of the ratchet 56 is installed with a take-up shaft 55, the top of the hydraulic rod 53 is installed with a cross plate 57, the top of the cross plate 57 is installed with a blocking rod 58, the top of the cross plate 57 is installed with a limiting column 59 through a pin shaft, and the outer wall of the limiting column 59 is installed with a second spring 510.

[0050] Specifically, the follower block 50 rises and falls synchronously with the lifting plate 6 and is fixedly connected to the outer wall of the lifting plate 6 via a steel cable. The follower block 50 can limit the shaking of the lifting plate 6 and prevent the lifting plate 6 from shaking significantly when subjected to strong winds.

[0051] It should be noted that when the lifting plate 6 shakes, Figure 12 As shown in (c), when the lifting plate 6 moves left and right due to the influence of wind, the steel cable pulls one of the guide wheels 52 to slide on the slide rail 54, and the guide wheel 52 drives the gear plate to move. The gear plate engages with the ratchet 56, driving the ratchet 56 to rotate. The rotation of the ratchet 56 drives the take-up shaft 55 to rotate. The take-up shaft 55 pulls in the steel cable, thereby tightening the lifting plate 6. Tightening the four corners of the lifting plate 6 in this way can ensure the stability of the lifting plate 6, prevent shaking, and improve the stability and accuracy of lifting containers in windy weather.

[0052] It should be noted that the hydraulic rod 53 is raised to drive the transverse plate 57 to be raised, so that the limiting column 59 can form a limiting effect on the ratchet 56, and the blocking rod 58 can prevent the limiting column 59 from rotating in the opposite direction.

[0053] See also Figure 2 、 Figure 3 and Figure 12 The outer wall of the fixture 32 is installed with a lifting plate 6, and the outer wall of the lifting plate 6 is provided with a threaded hole 61. The outer wall of the lifting plate 6 is fixedly connected to the fixture 32 through the threaded hole 61 and bolts. A connecting block 62 is installed at the bottom of the lifting plate 6, and the inner wall of the connecting block 62 is connected to the damping block 63 through a pin shaft.

[0054] Specifically, when the lifting plate 6 is affected by strong wind and tilts, Figure 12 In the states (a) and (b), the reverse swing of the damping block 63 can effectively reduce the tilt amplitude of the lifting plate 6 and improve the stability of the lifting plate 6.

[0055] See also Figure 4 、 Figure 5 and Figure 6A counterweight assembly 7 is installed on the top of the lifting plate 6. The counterweight assembly 7 includes a fixed box 70 installed on the top of the lifting plate 6. A fixed frame 71 is installed on the top of the fixed box 70. A column 72 is installed on the top of the fixed frame 71. The column 72 is hollow inside. A semicircular limiting plate is installed on the top of the column 72. A drive shaft 73 is placed on the top of the limiting plate, and the drive shaft 73 passes through the interior of the fixed frame 71. A circular through groove is opened on the outer wall of the fixed frame 71. Fan blades 74 are installed around the outer wall of the drive shaft 73. The fan blades 74 are located inside the through groove, and an interception net 75 is installed on the inner wall of the through groove. The inner wall of the fixed box 70 is installed with a partition plate 8, which divides the fixed box 70 into an upper chamber and a lower chamber. The inner wall of the upper chamber is installed with a first water pump 81, and the input end of the first water pump 81 is connected to the external water source, and the output end extends into the interior of the lower chamber. The inner wall of the lower chamber is installed with a second water pump 82, and the output end of the second water pump 82 is connected to the external water source. The inner wall of the upper chamber is provided with a driving chamber 83, and the inner wall of the driving chamber 83 is installed with a plurality of permanent magnets 84. The inner wall of the driving chamber 83 is installed with a rotating shaft 85, and the outer wall of the rotating shaft 85 is surrounded by a belt 86, and the belt 86 passes through the interior of the column 72, and the rotating shaft 85 is connected to the driving shaft 73. The transmission connection is through a belt 86, and a rotating plate 87 is installed on the outer wall of the rotating shaft 85. The inner wall of the rotating plate 87 is installed with an induction coil 88. The outer wall of the rotating shaft 85 is installed with multiple trigger tubes 9, and the inner wall of the trigger tube 9 is installed with a reset spring 91. A fixed block 92 is installed at one end of the reset spring 91, and a trigger rod 93 is installed on the top of the fixed block 92. A circular limiting disk 94 is installed at the tube mouth of the trigger tube 9, and the aperture of the limiting disk 94 is smaller than the diameter of the fixed block 92 to form a limiting structure. A moving rod 95 is installed through the outer wall of the driving cavity 83, and a first spring is installed around the outer wall of the moving rod 95. An impact plate 96 is installed at one end of the moving rod 95.

[0056] Specifically, when wind blows on both sides of the lifting plate 6, it will drive the fan blades 74 to rotate synchronously, and the wind speed corresponds to the rotation speed of the fan blades 74. The fan blades 74 drive the drive shaft 73 to rotate, and the drive shaft 73 drives the belt 86 to rotate, thereby causing the rotating shaft 85 to rotate synchronously. When the wind speed is large and the rotation speed of the rotating shaft 85 is fast, the centrifugal force exerted on the trigger rod 93 inside the trigger tube 9 on the outer wall of the rotating shaft 85 is greater than the pulling force of the return spring 91, and the trigger rod 95 extends, and then contacts the impact plate 96 during the rotation process, and squeezes the impact plate 96, so that the moving rod 95 contacts the control switch on the outer wall of the first water pump 81, and the first water pump 81 pumps external water into the lower chamber, thereby increasing the weight of the lifting plate 6 and improving the wind resistance of the lifting plate 6.

[0057] It should be noted that the power generated by the induction coil 88 on the rotating plate 87 rotating between the permanent magnets 84 can be provided to various electronic instruments in the device, thereby reducing energy consumption.

[0058] See also Figure 4 、 Figure 10 and Figure 11 A detection shell 10 is installed on the inner bottom wall of the fixed box 70, a fixed track 101 is installed on the inner wall of the detection shell 10, a rolling ball 102 is placed on the inner wall of the fixed track 101, and storage boxes 103 are installed on the outer walls of both sides of the fixed box 70. A telescopic rod 104 is installed through the outer wall of the storage box 103, and one end of the telescopic rod 104 is connected to the rolling ball 102 through a cable, and a water inlet hole 105 is opened on the outer wall of the telescopic rod 104.

[0059] Specifically, when the lifting plate 6 tilts, the rolling ball 102 slides synchronously on the fixed track 101, and the rolling ball 102 pulls the telescopic rod 104 on the tilted side of the lifting plate 6 through the cable during the sliding process. The telescopic rod 104 moves to expose the water inlet hole 105, and the water in the lower chamber enters the corresponding storage box 103, thereby increasing the gravity of the tilted side, preventing one side of the lifting plate 6 from tilting, and improving the stability of the lifting.

[0060] Working principle: first, when the lifting plate 6 shakes, Figure 12As shown in (c), when the lifting plate 6 moves left and right due to the influence of wind, the steel cable pulls one of the guide wheels 52 to slide on the slide rail 54, and the guide wheel 54 drives the gear plate to move. The gear plate engages with the ratchet 56, driving the ratchet 56 to rotate. The rotation of the ratchet 56 drives the take-up shaft 55 to rotate, and the take-up shaft 55 pulls in the steel cable, thereby tightening the lifting plate 6. Tightening the four corners of the lifting plate 6 in the above manner can ensure the stability of the lifting plate 6 and prevent shaking, thereby improving the stability and accuracy of lifting containers in windy weather. Subsequently, when the wind blows on both sides of the lifting plate 6, it will drive the fan blades 74 to rotate synchronously, and the wind speed corresponds to the rotation speed of the fan blades 74. The fan blades 74 drive the drive shaft 73 to rotate, and the drive shaft 73 drives the belt 86 to rotate, thereby making the rotating shaft 85 rotate synchronously. When the wind speed is large, the rotation of the rotating shaft 85 is caused to When the moving speed is faster, the centrifugal force exerted on the trigger rod 95 inside the trigger tube 9 on the outer wall of the rotating shaft 85 is greater than the pulling force of the return spring 91, and the trigger rod 95 extends, and then contacts the impact plate 96 during the rotation process, and squeezes the impact plate 96, so that the moving rod 95 contacts the control switch on the outer wall of the first water pump 81, and the first water pump 81 pumps the external water into the lower chamber, increasing the weight of the lifting plate 6 and improving the wind resistance of the lifting plate 6. Finally, when the lifting plate 6 tilts, the rolling ball 102 slides synchronously on the fixed track 101, and the rolling ball 102 pulls the telescopic rod 104 on the tilted side of the lifting plate 6 through the cable during the sliding process. The telescopic rod 104 moves to expose the water inlet hole 105, and the water in the lower chamber enters the corresponding storage box 103, increasing the gravity of the tilted side, preventing one side of the lifting plate 6 from tilting, and improving the stability of the lifting.

[0061] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. Container gantry lifting device, characterized in that, It comprises a lifting plate (6), a limiting assembly (5) and a counterweight assembly (7); A lifting plate (6) is provided with a fixer (32) at both ends, and each fixer (32) is connected to two limit assemblies (5); A limit assembly (5), wherein the limit assembly (5) comprises a driven block (50) slidably mounted on a support column (12), an outer wall of the driven block (50) is provided with a slide groove (51) matched with the support column (12), an inner wall of the driven block (50) is provided with a hydraulic rod (53), an inner wall of the driven block (50) is provided with a plurality of guide wheels (52), an outer wall of the guide wheel (52) is provided with a steel cable, one end of the steel cable is connected to one end of the hydraulic rod (53), the other end of the steel cable is fixedly connected to the outer wall of the fixer (32), one end of the fixer (32) is fixedly connected to the outer wall of the lifting plate (6), and the steel cable is tightened to limit and fix the lifting plate (6); The counterweight assembly (7) improves the stability of the lifting plate (6) by increasing the weight.

2. The container gantry lifting device according to claim 1, characterized in that: A base (1) is provided, wherein a roller (11) is installed at the bottom of the base (1), three support columns (12) are installed at the top of the base (1), a hydraulic cylinder (13) is installed on the outer wall of the base (1), a driver (2) is installed on the outer wall of the base (1), a controller (21) is installed on the outer wall of the driver (2), and an operating table (22) is installed on the outer wall of the controller (21).

3. The container gantry lifting device according to claim 2, characterized in that: A crossbeam (3) is installed on the top of the support column (12), a guide wheel (31) is installed on the top of the crossbeam (3), a steel cable is connected to the top of the hydraulic cylinder (13), and the steel cable is connected to a fixer (32) through the guide wheel (31), and a hook (33) is installed at the bottom of the fixer (32).

4. The container gantry lifting device according to claim 3, characterized in that: A cleaning assembly (4) is installed on the top of the crossbeam (3), and the cleaning assembly (4) comprises a fixed shell (40) installed on the top of the crossbeam (3). An arc-shaped through hole (41) is opened on the outer wall of the fixed shell (40), and an electric heating plate (42) is installed on the outer wall of the through hole (41).

5. The container gantry lifting device according to claim 2, characterized in that: A limit assembly (5) is slidably mounted on the outer wall of the support column (12), a slide rail (54) is mounted on the inner wall of the driven block (50), and one of the guide wheels (52) is slidably connected to the slide rail (54), a gear plate is mounted on the outer wall of the guide wheel (52), a ratchet (56) is mounted on the inner wall of the driven block (50), a take-up shaft (55) is mounted on the outer wall of the ratchet (56), a transverse plate (57) is mounted on the top of the hydraulic rod (53), a blocking rod (58) is mounted on the top of the transverse plate (57), a limit column (59) is mounted on the top of the transverse plate (57) through a pin shaft, and a second spring (510) is mounted on the outer wall of the limit column (59).

6. The container gantry lifting device according to claim 3, characterized in that: The outer wall of the fixer (32) is provided with a lifting plate (6), the outer wall of the lifting plate (6) is provided with a threaded hole (61), the outer wall of the lifting plate (6) is fixedly connected to the fixer (32) through the threaded hole (61) and a bolt, the bottom of the lifting plate (6) is provided with a connecting block (62), the inner wall of the connecting block (62) is connected to a damping block (63) through a pin shaft.

7. The container gantry lifting device according to claim 6, characterized in that: A counterweight assembly (7) is installed on the top of the lifting plate (6). The counterweight assembly (7) also includes a fixed box (70) installed on the top of the lifting plate (6). A fixed frame (71) is installed on the top of the fixed box (70). A column (72) is installed on the top of the fixed frame (71). The column (72) is hollow inside. A semicircular limiting plate is installed on the top of the column (72). A driving shaft (73) is placed on the top of the limiting plate, and the driving shaft (73) passes through the inside of the fixing frame (71). A circular through-groove is opened on the outer wall of the fixing frame (71). A fan blade (74) is installed around the outer wall of the driving shaft (73). The fan blade (74) is located inside the through-groove. An interception net (75) is installed on the inner wall of the through-groove.

8. The container gantry lifting device according to claim 7, characterized in that: The inner wall of the fixed box (70) is provided with a partition plate (8), which divides the fixed box (70) into an upper chamber and a lower chamber. The inner wall of the upper chamber is provided with a first water pump (81), and the input end of the first water pump (81) is connected to an external water source, and the output end extends into the interior of the lower chamber. The inner wall of the lower chamber is provided with a second water pump (82), and the output end of the second water pump (82) is connected to an external water source. The inner wall of the upper chamber is provided with a driving chamber (83). A plurality of permanent magnets (84) are installed on the inner wall of the driving cavity (83), a rotating shaft (85) is installed on the inner wall of the driving cavity (83), a belt (86) is installed around the outer wall of the rotating shaft (85), and the belt (86) passes through the interior of the column (72), the rotating shaft (85) and the driving shaft (73) are connected by the belt (86), a rotating plate (87) is installed on the outer wall of the rotating shaft (85), and an induction coil (88) is installed on the inner wall of the rotating plate (87).

9. The container gantry lifting device according to claim 8, characterized in that: The outer wall of the rotating shaft (85) is provided with a plurality of trigger tubes (9), the inner wall of the trigger tube (9) is provided with a reset spring (91), one end of the reset spring (91) is provided with a fixed block (92), the top of the fixed block (92) is provided with a trigger rod (93), the tube mouth of the trigger tube (9) is provided with a circular limiting disk (94), and the aperture of the limiting disk (94) is smaller than the diameter of the fixed block (92) to form a limiting structure, the outer wall of the driving cavity (83) is provided with a moving rod (95), the outer wall of the moving rod (95) is provided with a first spring, and one end of the moving rod (95) is provided with a striking plate (96).

10. The container gantry lifting device according to claim 8, characterized in that: The inner bottom wall of the fixed box (70) is installed with a detection shell (10), the inner wall of the detection shell (10) is installed with a fixed track (101), the inner wall of the fixed track (101) is placed with a rolling ball (102), the outer walls of both sides of the fixed box (70) are installed with storage boxes (103), the outer wall of the storage box (103) is penetrated by a telescopic rod (104), and one end of the telescopic rod (104) is connected to the rolling ball (102) through a cable, and the outer wall of the telescopic rod (104) is provided with a water inlet hole (105).

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