A crane control device

Abstract

This invention relates to the field of remote crane control technology, specifically a crane control device, comprising a cabinet, a support carrier, and a guardrail. The cabinet is mounted on the support carrier; the guardrail is also mounted on the support carrier; the support carrier is the crane's frame or trolley; a control mechanism is installed inside the cabinet, which receives control commands remotely sent from the control room; the control mechanism integrates the crane's electric hoist control unit, trolley control unit, and crane trolley control unit; it also includes: a detection mechanism installed inside the cabinet; and a protective mechanism installed inside the cabinet, used to detect if the cabinet becomes loose. This invention achieves remote control of port container cranes by controlling the movement of the trolley and crane units within the crane, as well as the movement of transported containers, through the control mechanism; and it eliminates the need for personnel to frequently climb the crane to maintain the cabinet, greatly improving the convenience of inspections.

Description

Technical Field

[0001] This invention relates to the field of crane remote control technology, and more specifically to a crane control device. Background Technology

[0002] Cranes include various types such as tower cranes and container gantry cranes, and are widely used in material handling and port container loading and unloading. Their structure usually includes core components such as lifting trolleys and trolley traveling mechanisms, and is equipped with integrated electrical control devices. At the port, the staff issues operating instructions from the control room, and the device receives the instructions and implements remote control, thereby precisely driving the lifting trolley and trolley traveling mechanisms to complete the specified actions, realizing the lifting, translation and positioning of containers.

[0003] Chinese patent document CN222273932U discloses a gantry crane control box, including a cabinet with evenly distributed heat dissipation grooves on one side, and a filter plate covering the heat dissipation groove area. The cabinet integrates an electric hoist control unit and a traveling crane control unit. A rotatable dust-collecting component is provided on the filter plate, and a dust-collecting fan is mounted on the cabinet. It also includes a remote controller, with a signal receiver for receiving control signals from the remote controller and a controller for processing the signals and issuing corresponding control commands. In this prior art, the electric hoist control unit and the traveling crane control unit are integrated into a single cabinet, sharing a control box, simplifying wiring layout. Remote control operation is quick and convenient, greatly improving the crane's efficiency. Furthermore, when cleaning the filter plate, the dust-collecting fan generates suction to remove dust adhering to the filter plate, ensuring unobstructed flow and guaranteeing effective heat dissipation of the control box.

[0004] However, in port cranes, the control devices are generally installed on the chassis or crane trolley. Since cranes are constantly moving, and due to their large size and poor shock absorption, the installed control devices are subjected to a lot of vibration. This can cause the connection between the control device and the crane to loosen, potentially leading to the control device falling off. Therefore, regular inspections are required. However, there are many cranes in ports, and due to the need for remote control, a single crane may have many control devices, making inspections extremely troublesome and affecting maintenance efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a crane control device.

[0006] The technical solution of this invention: A crane control device includes a cabinet, a support carrier, and a guardrail. The cabinet is mounted on the support carrier; the guardrail is mounted on the support carrier; the support carrier is the crane frame or the crane trolley; a control mechanism is installed inside the cabinet, which is used to receive control commands remotely sent from the control room; the control mechanism integrates the crane's electric hoist control unit, crane trolley control unit, and crane crane control unit; and further includes:

[0007] The testing facility is installed inside the cabinet;

[0008] The protective mechanism is installed inside the cabinet and is used to protect the control mechanism if the cabinet becomes loose.

[0009] The testing mechanism includes a drive assembly, an elastic assembly, a limiting assembly, a clamping assembly, a piston cylinder, and a lifting rod. The piston cylinder is installed inside the cabinet, and the drive assembly is installed inside the piston cylinder. The lifting rod is installed inside the drive assembly, and the elastic assembly limits its movement. The elastic assembly is installed on the cabinet and abuts against the guardrail, with its movable end engaged within the lifting rod. The limiting assembly is installed on the elastic assembly and is used to restrict its use. The clamping assembly is installed on the elastic assembly and is used to clamp the guardrail. When the limiting assembly is contacted, the elastic assembly abuts against the guardrail. After the cabinet loosens, the elastic assembly moves away from the cabinet, causing the lifting rod to extend upwards out of the cabinet.

[0010] Preferably, the drive assembly includes an elastic element, a piston plate, a reflective sticker, and a conical groove; the two ends of the elastic element are respectively connected to a piston cylinder and a piston plate; the lifting rod is mounted on the piston plate; the reflective sticker is mounted on the top of the lifting rod; the conical groove is formed on the lifting rod, and the lifting rod is engaged by the elastic element through the conical groove.

[0011] Preferably, the elastic component includes a spring, a tapered rod, and a fitting; the two ends of the spring are respectively connected to the cabinet and the fitting; the clamping component is installed inside the fitting; the tapered rod is installed on the side of the fitting near the spring and passes through the cabinet to engage the lifting rod.

[0012] Preferably, the limiting component includes bolts, a limiting plate, and an L-bar; the bolts are installed inside the cabinet and the limiting plate; the cabinet and the limiting plate are fixed together by bolts; the limiting plate is installed on the fitting part; the L-bar is installed outside the cabinet and is sleeved inside the limiting plate.

[0013] Preferably, the clamping assembly includes a connecting pipe, a piston cylinder, an elastic piston shaft, and a clamping plate; the two ends of the connecting pipe are respectively connected to the bottom of the piston cylinder and the end of the piston cylinder away from the middle of the bonding component; the piston cylinder is installed inside the bonding component; the fixed end of the elastic piston shaft is connected inside the piston cylinder, and the clamping plate is installed at its movable end; the clamping plate moves along the guide groove opened on the bonding component; the lifting rod rises, drawing air from the piston cylinder into the piston cylinder, causing the clamping plate to move along the guide groove toward the middle of the bonding component to clamp the guardrail.

[0014] Preferably, the protective mechanism includes a mounting frame, a sealing bladder, a second connecting pipe, a heat sink, a protective component, and a rotating component; there are two mounting frames, which are respectively installed on the upper and lower sides of the cabinet cavity and located on the upper and lower sides of the control mechanism; the sealing bladder is installed inside the mounting frame, and one side of the heat sink is connected to the sealing bladder and the other side is connected to the heat sink; the protective component is installed on the mounting frame; the rotating component is installed inside the cabinet; the two ends of the second connecting pipe are respectively connected to the top of the first piston cylinder and the sealing bladder.

[0015] Preferably, the protective assembly includes a cylinder, a coil spring, a rotating roller, and a protective curtain; the cylinder is installed inside the cabinet, and the coil spring is installed inside the cylinder; the rotating roller is installed at the center of the coil spring; the protective curtain is installed on the rotating roller and passes around the opening end of the mounting frame to connect with the rotating assembly.

[0016] Preferably, the rotating assembly includes a pull rope, a take-up roller, a gear, and a rack; the gear is rotatably connected to the cabinet; the rack is mounted on the lifting rod and moves up and down with the lifting rod; the rack meshes with the gear; take-up rollers are installed at both ends of the gear; the two ends of the pull rope are respectively connected to the take-up roller and the protective curtain; the lifting rod drives the rack to rise and separate from the gear, and the pull rope inside the take-up roller is rotated and released, causing the protective curtain to leave the opening end of the mounting frame.

[0017] Preferably, a mounting frame is installed on the support carrier, and the two sides of the cabinet are connected to the mounting frame; cabinet doors are installed on the cabinet.

[0018] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:

[0019] Unscrew the bolts from the limit plate so that the fitting parts abut against the guardrail, and install the cabinet on the mounting frame. In daily use, commands are sent remotely to the control mechanism through the port's control room, and then the control mechanism controls the movement of the crane's trolley and main trolley units, as well as the movement of containers, thus realizing remote control of the port's container crane.

[0020] During daily use, the movement of the crane causes the cabinet to loosen from the mounting frame. At this time, the cabinet and the mounting frame are relatively displaced. The elasticity of the spring keeps the fitting against the guardrail. However, due to the loosening of the cabinet, the cabinet separates from the fitting. At this time, the tapered rod leaves the lifting rod and releases the lifting rod's limit. Then, the elasticity of the elastic element drives the piston plate to rise in the piston cylinder, causing the lifting rod to extend out of the cabinet. The reflective sticker on the lifting rod reminds the staff, so that the staff only need to observe whether the reflective sticker extends from below the crane to determine whether the cabinet needs installation and maintenance. This eliminates the need for staff to frequently climb the crane to maintain the cabinet, greatly improving the convenience of staff during inspections.

[0021] When the piston plate rises, the air inside the second piston cylinder is drawn into the first piston cylinder along the connecting pipe, thereby driving the elastic piston shaft to move inside the second piston cylinder. This causes the clamping plate to move towards the center of the mating part, thus clamping the guardrail through the clamping plate. This achieves the goal of increasing the stability of the cabinet to a certain extent in a short period of time and slowing down the further loosening of the cabinet when the cabinet becomes loose.

[0022] As the lifting rod rises, it drives the rack to rise as well. Through the meshing of the gear and rack, the gear rotates, which in turn causes the take-up roller to rotate and release the pull rope. At this time, the elasticity of the coil spring drives the rotating roller to rotate. The rotation of the rotating roller causes the protective curtain to leave the opening end of the mounting frame and wrap around the surface of the rotating roller. Simultaneously, the piston plate rises in the inner cavity of the piston cylinder, pushing the water in the inner cavity of the piston cylinder into the inner cavity of the sealing bladder along the connecting pipe. This causes the sealing bladder to expand, wrapping and supporting the control mechanism. This prevents the control mechanism from loosening after the cabinet becomes slightly loose and the movement of the crane increases the cabinet's sway. Furthermore, the heat absorbed by the water is transferred to the outside of the cabinet through the heat dissipation fins on the sealing bladder, providing auxiliary heat dissipation for the control mechanism. This prevents the control mechanism from overheating after the sealing bladder reduces heat dissipation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the clamping plate proposed in this invention;

[0025] Figure 3 This is a schematic diagram of the control mechanism proposed in this invention;

[0026] Figure 4 This is a schematic diagram of the structure of the protective curtain proposed in this invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle;

[0029] Figure 7 For the present invention Figure 4 Enlarged view of point C in the middle;

[0030] Figure 8 This is a schematic diagram of the elastic element proposed in this invention;

[0031] Figure 9 This is a schematic diagram of the structure of the connecting pipe one proposed in this invention;

[0032] Figure 10 This is a schematic diagram of the piston cylinder II proposed in this invention;

[0033] Reference numerals: 1. Cabinet; 2. Supporting carrier; 3. Guardrail; 4. Mounting frame; 5. Control mechanism; 6. Piston cylinder one; 7. Elastic element; 8. Piston plate; 9. Lifting rod; 10. Reflective tape; 11. Conical groove; 12. Spring one; 13. Conical rod; 14. Fitting part; 15. Bolt; 16. Limiting plate; 17. Connecting pipe one; 18. Piston cylinder two; 19. Elastic piston shaft; 20. Clamping plate; 21. Mounting frame; 22. Sealing bladder; 23. Connecting pipe two; 24. Heat sink; 25. Cylinder; 26. Coil spring; 27. Rotating roller; 28. Protective curtain; 29. ​​Pull rope; 30. Take-up roller; 31. L-bar; 32. Gear; 33. Rack. Detailed Implementation

[0034] Example 1, as Figures 1-10 As shown, the present invention proposes a crane control device, comprising a cabinet 1, a support carrier 2, a detection mechanism, a protective mechanism, and a guardrail 3. The cabinet 1 is mounted on the support carrier 2; the guardrail 3 is mounted on the support carrier 2; the support carrier 2 is the crane frame or the crane trolley; a control mechanism 5 is installed inside the cabinet 1, which is used to receive control commands remotely sent from the control room; the control mechanism 5 integrates the crane's electric hoist control unit, crane trolley control unit, and crane control unit; the detection mechanism is installed inside the cabinet 1; the protective mechanism is installed inside the cabinet 1 and is used to protect the control mechanism 5 if the cabinet 1 becomes loose; the detection mechanism... It includes a drive assembly, an elastic assembly, a limiting assembly, a clamping assembly, a piston cylinder 6, and a lifting rod 9; the piston cylinder 6 is installed inside the cabinet 1, and the drive assembly is installed inside the piston cylinder 6; the lifting rod 9 is installed inside the drive assembly and is limited by the elastic assembly; the elastic assembly is installed on the cabinet 1 and abuts against the guardrail 3, and the movable end of the elastic assembly is engaged inside the lifting rod 9; the limiting assembly is installed on the elastic assembly and is used to limit the use of the elastic assembly; the clamping assembly is installed on the elastic assembly and is used to clamp the guardrail 3; when the limiting assembly is contacted, the elastic assembly abuts against the guardrail 3, and after the cabinet 1 becomes loose, the elastic assembly moves away from the cabinet 1, causing the lifting rod 9 to extend upward out of the cabinet 1.

[0035] The drive assembly includes an elastic element 7, a piston plate 8, a reflective sticker 10, and a conical groove 11. The two ends of the elastic element 7 are connected to the piston cylinder 6 and the piston plate 8, respectively. The lifting rod 9 is installed on the piston plate 8. The reflective sticker 10 is installed on the top of the lifting rod 9. The conical groove 11 is opened on the lifting rod 9, and the lifting rod 9 is engaged by the elastic assembly through the conical groove 11. After the cabinet 1 becomes loose, the lifting rod 9 is released from its limit. Then, the elasticity of the elastic element 7 drives the piston plate 8 to move inside the piston cylinder 6, causing the piston plate 8 to drive the lifting rod 9 to rise. This causes the reflective sticker 10 to leave the inner cavity of the cabinet 1, reminding the staff. When the staff climbs the stairs to the cabinet 1, they press down on the lifting rod 9 to drive the piston plate 8 to descend inside the piston cylinder 6.

[0036] The elastic component includes a spring 12, a tapered rod 13, and a fitting 14; the two ends of the spring 12 are connected to the cabinet 1 and the fitting 14 respectively; the clamping component is installed inside the fitting 14; the tapered rod 13 is installed on the side of the fitting 14 near the spring 12 and passes through the cabinet 1 to engage the lifting rod 9; when the lifting rod 9 pops out of the cabinet 1, the operator pushes the lifting rod 9 back into the cabinet 1, and then connects and secures the cabinet 1 to the mounting bracket 4.

[0037] The limiting assembly includes bolts 15, a limiting plate 16, and an L-rod 31. Bolts 15 are installed inside the cabinet 1 and the limiting plate 16. The cabinet 1 and the limiting plate 16 are fixed by bolts 15. The limiting plate 16 is installed on the fitting piece 14. The L-rod 31 is installed outside the cabinet 1 and is sleeved inside the limiting plate 16. When installing the cabinet 1, bolts 15 are screwed into the cabinet 1 and the limiting plate 16 to fix the position of the fitting piece 14, thereby preventing the fitting piece 14 from being pushed out by the spring 12 during installation, which would cause inconvenience. The L-rod 31 is used to prevent the fitting piece 14 from being too far from the cabinet 1.

[0038] The clamping assembly includes a connecting pipe 17, a piston cylinder 18, an elastic piston shaft 19, and a clamping plate 20. The two ends of the connecting pipe 17 are respectively connected to the bottom of the piston cylinder 16 and the end of the piston cylinder 18 furthest from the center of the fitting member 14. The piston cylinder 18 is installed inside the fitting member 14. The fixed end of the elastic piston shaft 19 is connected inside the piston cylinder 18, and the clamping plate 20 is installed at its movable end. The clamping plate 20 moves along a guide groove opened on the fitting member 14. The lifting rod 9 rises, drawing air from the piston cylinder 18 into the piston cylinder 16, causing the clamping plate 20 to move along the guide groove towards the center of the fitting member 14 to clamp the guardrail 3. When installing the cabinet 1, the clamping plate 20 passes through the gap in the guardrail 3. When the piston plate 8... After the piston cylinder 16 rises, the air in the piston cylinder 218 is extracted along the connecting pipe 17, causing the elastic piston shaft 19 to move along the piston cylinder 218, which in turn moves the clamping plate 20 toward the center of the fitting part 14. This clamping plate 20 clamps the guardrail 3, providing temporary reinforcement. This temporary reinforcement is only performed when the cabinet 1 becomes loose, preventing the clamping plate 20 from loosening during the long-term clamping of the guardrail 3, which would cause all other measures to fail. The elastic piston shaft 19 consists of a spring 2 and a piston shaft. The two ends of the spring 2 are connected to the piston cylinder 218 and the large end of the elastic piston shaft 19, respectively. The small end of the elastic piston shaft 19 passes through the piston cylinder 218 and connects to the clamping plate 20.

[0039] Example 2, as Figures 1-8 As shown, the crane control device proposed in this invention, compared with Embodiment 1, has a protective mechanism including a mounting frame 21, a sealing bladder 22, a connecting pipe 23, a heat sink 24, a protective component, and a rotating component. There are two mounting frames 21, which are respectively installed on the upper and lower sides of the inner cavity of the cabinet 1 and located on the upper and lower sides of the control mechanism 5. The sealing bladder 22 is installed inside the mounting frame 21, and one side of the heat sink 24 is connected to the sealing bladder 22 and the other side is connected to the heat sink 24. The protective component is installed on the mounting frame 21. The rotating component is installed inside the cabinet 1. The two ends of the connecting pipe 23 are respectively connected to the top of the piston cylinder 6 and the sealing bladder 22. The sealing bladder 22 is a retractable sealing body. When the piston plate 8 rises in the inner cavity of the piston cylinder 6, it pushes the water in the inner cavity of the piston cylinder 6 along the connecting pipe 23 into the sealing bladder 22, causing the sealing bladder 22 to expand and wrap around the upper and lower sides of the control mechanism 5. The water in the inner cavity of the sealing bladder 22 and the elasticity of the sealing bladder 22 provide temporary wrapping and support for the control mechanism 5.

[0040] The protective components include a cylinder 25, a coil spring 26, a rotating roller 27, and a protective curtain 28. The cylinder 25 is installed inside the cabinet 1, and the coil spring 26 is installed inside the cylinder 25. The rotating roller 27 is installed at the center of the coil spring 26. The protective curtain 28 is installed on the rotating roller 27 and passes around the opening end of the mounting frame 21 to connect with the rotating component. By shielding the sealing bladder 22 with the protective curtain 28, the sealing bladder 22 is prevented from being bumped or damaged during daily use and when the operator operates the control mechanism 5.

[0041] The rotating assembly includes a pull rope 29, a take-up roller 30, a gear 32, and a rack 33; the gear 32 is rotatably connected inside the cabinet 1; the rack 33 is mounted on the lifting rod 9 and rises and falls with the lifting rod 9; the rack 33 meshes with the gear 32; take-up rollers 30 are mounted on both ends of the gear 32; the two ends of the pull rope 29 are respectively connected to the take-up roller 30 and the protective curtain 28; the lifting rod 9 drives the rack 33 to rise and separate from the gear 32, the pull rope 29 inside the take-up roller 30 is rotated and released, causing the protective curtain 28 to leave the opening end of the mounting frame 21; in the initial state When the protective curtain 28 is pulled by the pull rope 29, the coil spring 26 is in a compressed state. When the rack 33 rises and drives the gear 32 to rotate and then separates from the gear 32, it drives the take-up roller 30 to rotate and release the pull rope 29, so that the protective curtain 28 is rolled up on the surface of the rotating roller 27. When the piston plate 8 at the bottom of the lifting rod 9 descends in the inner cavity of the piston cylinder 6, it drives the rack 33 to re-mesh with the gear 32, so that the take-up roller 30 rotates to roll up the pull rope 29, thereby pulling the protective curtain 28 to cover the opening end of the mounting frame 21 to protect the sealing bag 22.

[0042] Example 3, as Figure 1 and Figure 2 As shown, the crane control device proposed in this invention, compared with Embodiment 2, has an installation frame 4 installed on the support carrier 2, and the two sides of the cabinet 1 are connected to the installation frame 4; the cabinet 1 is equipped with cabinet doors.

[0043] In summary, in this invention, the support carrier 2 can be a crane trolley or the frame of a crane, etc.; then the cabinet 1 is installed on the mounting frame 4, so that the fitting part 14 abuts against the guardrail 3, and the clamping plate 20 is inserted into the gap of the guardrail 3. Then the bolts 15 are turned to release the fixing of the cabinet 1 and the limiting plate 16. Then the remote control command from the port control room is received through the control mechanism 5, thereby controlling the overall operation of the crane.

[0044] During daily use, the movement of the crane causes the cabinet 1 and the mounting frame 4 to loosen. At this time, there is a gap between the cabinet 1 and the guardrail 3. The elasticity of the spring 12 drives the fitting 14 to always be in contact with the guardrail 3. Therefore, the tapered rod 13 will separate from the lifting rod 9, releasing the limit on the lifting rod 9. Thus, the elasticity of the elastic element 7 drives the piston plate 8 to rise in the inner cavity of the piston cylinder 6, thereby causing the reflective sticker 10 on the lifting rod 9 to extend out of the inner cavity of the cabinet 1. This allows the workers below the crane to better see the reflective sticker 10 and maintain the cabinet 1. Since the looseness between the cabinet 1 and the mounting frame 4 is within a controllable range when the tapered rod 13 and the lifting rod 9 separate, it is only necessary to use the reflective sticker 10 to remind the workers.

[0045] After the piston plate 8 rises, the air in the inner cavity of the piston cylinder 2 18 is drawn into the piston cylinder 1 6 along the connecting pipe 17, so that the elastic piston shaft 19 moves along the piston cylinder 2 18 toward the center of the fitting part 14, thereby driving the two clamping plates 20 to clamp the guardrail 3, thereby temporarily reinforcing the cabinet 1.

[0046] When the piston plate 8 rises within the piston cylinder 6, it drives the rack 33 to rise. Through the meshing of the gear 32 and the rack 33, the rotating gear 32 drives the take-up roller 30 to rotate and release the pull rope 29. Simultaneously, the elasticity of the rotating roller 27 causes it to rotate, causing the protective curtain 28 to wrap around its surface. This allows the protective curtain 28 to leave the opening of the mounting frame 21. The piston plate 8 then transports the water in the piston cylinder 6 along the connecting pipe 23 to the sealing bladder 22, causing the sealing bladder 22 to expand. This allows the two sealing bladders 22 to support and protect the control mechanism 5 from both ends, preventing the control mechanism 5 from being subjected to excessive impact force if the cabinet 1 becomes loose. Furthermore, the heat sink 24 provides auxiliary heat dissipation for the water inside the sealing bladder 22, thus achieving both temporary support and auxiliary heat dissipation for the control mechanism 5.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A crane control device, comprising a cabinet (1), a support carrier (2) and a guardrail (3), the cabinet (1) is installed on the support carrier (2); the guardrail (3) is installed on the support carrier (2); the support carrier (2) is a crane frame or a crane trolley; a control mechanism (5) is installed in the cabinet (1), the control mechanism (5) is used for receiving control instructions remotely sent by a control room; the control mechanism (5) is integrated with a crane electric hoist control unit, a crane car control unit and a crane trolley control unit; characterized in that, Also includes: The testing facility is installed inside the cabinet (1); The protective mechanism is installed inside the cabinet (1) and is used to protect the control mechanism (5) after the cabinet (1) becomes loose; The testing mechanism includes a drive assembly, an elastic assembly, a limiting assembly, a clamping assembly, a piston cylinder (6), and a lifting rod (9); the piston cylinder (6) is installed inside the cabinet (1), and the drive assembly is installed inside the piston cylinder (6); the lifting rod (9) is installed inside the drive assembly and the elastic assembly limits it; the elastic assembly is installed on the cabinet (1) and abuts against the guardrail (3), and the movable end of the elastic assembly is engaged inside the lifting rod (9); the limiting assembly is installed on the elastic assembly and is used to limit the use of the elastic assembly; the clamping assembly is installed on the elastic assembly and is used to clamp the guardrail (3); the limiting assembly is released, so that the elastic assembly abuts against the guardrail (3), and after the cabinet (1) becomes loose, the elastic assembly moves away from the cabinet (1), so that the lifting rod (9) extends upward out of the cabinet (1); The protective mechanism includes a mounting frame (21), a sealing bladder (22), a connecting pipe (23), a heat sink (24), a protective component, and a rotating component. There are two mounting frames (21), which are installed on the upper and lower sides of the inner cavity of the cabinet (1) and on the upper and lower sides of the control mechanism (5). The sealing bladder (22) is installed inside the mounting frame (21), and one side of the heat sink (24) is connected to the sealing bladder (22). The protective component is installed on the mounting frame (21). The rotating component is installed inside the cabinet (1). The two ends of the connecting pipe (23) are connected to the top of the piston cylinder (6) and the sealing bladder (22) respectively.

2. The crane control device according to claim 1, characterized in that, The drive assembly includes an elastic element (7), a piston plate (8), a reflective sticker (10), and a conical groove (11); the two ends of the elastic element (7) are connected to the piston cylinder (6) and the piston plate (8), respectively; the lifting rod (9) is installed on the piston plate (8); the reflective sticker (10) is installed on the top of the lifting rod (9); the conical groove (11) is opened on the lifting rod (9), and the lifting rod (9) is engaged by the elastic assembly through the conical groove (11).

3. A crane control device according to claim 1, characterized in that, The elastic component includes a spring (12), a tapered rod (13), and a fitting (14); the two ends of the spring (12) are connected to the cabinet (1) and the fitting (14) respectively; the clamping component is installed inside the fitting (14); the tapered rod (13) is installed on the side of the fitting (14) near the spring (12) and passes through the cabinet (1) to engage the lifting rod (9).

4. A crane control device according to claim 3, characterized in that, The limiting assembly includes a bolt (15), a limiting plate (16), and an L-bar (31); the bolt (15) is installed inside the cabinet (1) and the limiting plate (16); the limiting plate (16) is installed on the fitting (14); the L-bar (31) is installed outside the cabinet (1) and is fitted inside the limiting plate (16).

5. A crane control device according to claim 3, characterized in that, The clamping assembly includes a connecting pipe (17), a piston cylinder (18), an elastic piston shaft (19), and a clamping plate (20); the two ends of the connecting pipe (17) are respectively connected to the bottom of the piston cylinder (6) and the end of the piston cylinder (18) away from the middle of the fitting (14); the piston cylinder (18) is installed inside the fitting (14); the fixed end of the elastic piston shaft (19) is connected inside the piston cylinder (18), and the clamping plate (20) is installed at its movable end; the clamping plate (20) moves along the guide groove opened on the fitting (14); the lifting rod (9) rises, drawing the air in the piston cylinder (18) into the piston cylinder (6), so that the clamping plate (20) moves along the guide groove toward the middle of the fitting (14) to clamp the guardrail (3).

6. A crane control device according to claim 1, characterized in that, The protective assembly includes a cylinder (25), a coil spring (26), a rotating roller (27), and a protective curtain (28); the cylinder (25) is installed inside the cabinet (1), the coil spring (26) is installed inside the cylinder (25); the rotating roller (27) is installed at the center of the coil spring (26); the protective curtain (28) is installed on the rotating roller (27) and passes around the opening end of the mounting frame (21) and is connected to the rotating assembly.

7. A crane control device according to claim 6, characterized in that, The rotating assembly includes a pull rope (29), a take-up roller (30), a gear (32), and a rack (33); the gear (32) is rotatably connected inside the cabinet (1); the rack (33) is mounted on the lifting rod (9) and moves up and down with the lifting rod (9); the rack (33) meshes with the gear (32); take-up rollers (30) are installed at both ends of the gear (32); the two ends of the pull rope (29) are connected to the take-up roller (30) and the protective curtain (28) respectively; the lifting rod (9) drives the rack (33) to rise and separate from the gear (32), and the pull rope (29) inside the take-up roller (30) is rotated and released, so that the protective curtain (28) leaves the opening end of the mounting frame (21).

8. A crane control device according to claim 1, characterized in that, A mounting frame (4) is installed on the support carrier (2), and the two sides of the cabinet (1) are connected to the mounting frame (4); a cabinet door is installed on the cabinet (1).

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