Safety jacking control system

Abstract

The application discloses a safe jacking control system, which comprises a monitoring device, a handle reversing device and a control device. The monitoring device is used for monitoring the installation and dismounting work of the jacking operation. The handle reversing device comprises a handle assembly and a locking assembly. The handle assembly is drivingly connected with a reversing valve of a jacking hydraulic cylinder. The locking assembly is used for limiting the deflection direction of the handle assembly. The control device is in communication connection with the monitoring device and the locking assembly and is configured to control the locking assembly to limit at least one deflection direction of the handle assembly according to the monitoring result of the monitoring device, so that a major accident caused by the non-standard operation of the installation and dismounting workers can be avoided, and the prevention and stopping of the jacking accident in the tower lifting or lowering process can be realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tower cranes, and particularly relates to a safe jacking control system. BACKGROUND

[0002] At present, when a tower crane is ascending or descending, a hydraulic jacking system is used to drive a climbing mechanism to ascend or descend, so as to add or reduce sections. The hydraulic jacking system of the tower crane mainly comprises a jacking hydraulic cylinder, a hydraulic pump station and an oil pipe. The hydraulic pump station provides the jacking hydraulic cylinder with hydraulic oil of a certain pressure and flow rate, so as to drive the jacking hydraulic cylinder to perform extension and retraction movements, and further drive the climbing mechanism to ascend or descend.

[0003] However, the tower crane is most likely to have a major accident during the process of ascending or descending. If an accident occurs during the jacking operation of ascending or descending, the tower crane will generally collapse and be damaged, and the workers will be injured or even killed. Most of the causes of the accidents are derived from the non-standard operation of the workers who assemble or disassemble the tower crane. For example, the force is unloaded when the jacking cross beam has not been hung on the steps, and the oil cylinder starts to jacking out before the support rod is firmly stepped on. SUMMARY

[0004] In view of the above defects or deficiencies, the present application provides a safe jacking control system, which aims to solve the technical problem that a major accident is caused by the non-standard operation of the workers who assemble or disassemble the tower crane during the jacking operation of ascending or descending.

[0005] To achieve the above-mentioned purpose, the present application provides a safe jacking control system, wherein the safe jacking control system comprises a monitoring device, a handle reversing device and a control device. The monitoring device is used to monitor the assembly or disassembly work of the jacking operation. The handle reversing device comprises a handle assembly and a locking assembly. The handle assembly is drivingly connected with a reversing valve of the jacking hydraulic cylinder. The locking assembly is used to limit the deflection direction of the handle assembly. The control device is communicatively connected with the monitoring device and the locking assembly, and is configured to control the locking assembly to limit at least one deflection direction of the handle assembly according to the monitoring result of the monitoring device.

[0006] In an embodiment of the present application, the locking assembly comprises a fixed seat, a first movable block and two first control locks. The fixed seat is fixedly arranged close to the handle assembly. The two first control locks are arranged in sequence on the fixed seat along the deflection direction of the handle assembly. The extension and retraction lock cores of the two first control locks are arranged in parallel towards the same end and can be enclosed to form a locking space when the extension and retraction lock cores are both extended. The first movable block is connected with the handle assembly and placed in the locking space, so that at least one deflection direction of the handle assembly can be limited when the extension and retraction lock cores of at least one first control lock are extended. The control device is communicatively connected with the two first control locks and is further configured to:

[0007] When the monitoring device determines that the oil cylinder needs to be loaded, the control device controls the extension of the extension lock cylinder of the first control lock to limit the deflection direction of the handle assembly for driving the extension of the lifting hydraulic cylinder.

[0008] When the monitoring device determines that the oil cylinder needs to be unloaded, the control device controls the extension of the extension lock cylinder of the first control lock to limit the deflection direction of the handle assembly for driving the retraction of the lifting hydraulic cylinder.

[0009] In an embodiment of the present application, the handle assembly comprises a deflection driving rod, an unlocking module, and a reversing handle seat. The deflection driving rod is drivingly connected to the reversing valve of the lifting hydraulic cylinder. The unlocking module comprises a locking piece and an unlocking piece that can be locked or unlocked to the locking piece. One of the locking piece and the unlocking piece is sequentially arranged on the deflection driving rod in a direction away from the reversing valve of the lifting hydraulic cylinder, and the other of the locking piece and the unlocking piece is arranged on the reversing handle seat. The reversing handle seat is movably arranged and used to drive the deflection driving rod to deflect when the unlocking piece is locked to the locking piece. The control device is further communicatively connected to the unlocking piece and configured to control the unlocking piece to be unlocked to the locking piece when it is determined that the oil cylinder needs to be loaded and unloaded at the same time.

[0010] In an embodiment of the present application, the unlocking piece comprises a second control lock. The extension lock cylinder of the second control lock can be extended into or retracted out of the lock space formed by the locking piece. The control device is communicatively connected to the second control lock and configured to control the extension lock cylinder of the second control lock to retract out of the lock space of the locking piece when it is determined that the oil cylinder needs to be loaded and unloaded at the same time.

[0011] In an embodiment of the present application, the locking piece comprises two one-way hinges. The two one-way hinges are sequentially arranged along the deflection direction of the deflection driving rod, so that the gap between the two one-way hinges forms a lock space, and the two one-way hinges are arranged to be rotatable inward.

[0012] In an embodiment of the present application, the deflection driving rod and the two first control locks are arranged on opposite sides of a fixed seat. The fixed seat is sequentially and spaced apart along the length direction of the deflection driving rod, and is provided with a first guide opening and a second guide opening arranged in parallel and in straight strip shape. The first movable block is connected to the deflection driving rod through a first connecting assembly passing through the first guide opening. One of the locking piece and the unlocking piece is connected to the deflection driving rod through a second connecting assembly passing through the second guide opening. The handle assembly further comprises a guide rail arranged in parallel with the first guide opening and movably arranged with the reversing handle seat.

[0013] In an embodiment of the present application, the handle assembly further comprises a second movable block and a mounting plate, the second movable block is arranged on the same side as the two first control locks and is connected to the yaw driving rod through a second connecting assembly, and the mounting plate is arranged on the second movable block and can be mounted with one of the locking member and the unlocking member.

[0014] In an embodiment of the present application, the first connecting assembly and / or the second connecting assembly each comprises a mounting sleeve and a connecting rod, the mounting sleeve is sleeved on the yaw driving rod and has a gap between the mounting sleeve and the yaw driving rod, and the connecting rod passes through the corresponding guide opening to connect the mounting sleeve and the corresponding movable block.

[0015] In an embodiment of the present application, the handle reversing device further comprises a housing, the housing encloses an inner cavity in which the handle assembly and the locking assembly are accommodated, and opposite sides of the housing are respectively and correspondingly provided with a first outward opening and a second outward opening, the first outward opening is used for the yaw driving rod to extend out to be drivingly connected with the reversing valve of the jacking hydraulic cylinder, and the second outward opening is used for the reversing handle seat to extend out to be manually operated.

[0016] In an embodiment of the present application, the safe jacking control system further comprises an alarm, and the control device is further communicatively connected with the alarm and is configured to control the alarm to give an alarm prompt for the yaw direction of the handle assembly that is to be limited.

[0017] Through the above technical solution, the safe jacking control system provided by the embodiment of the present application has the following beneficial effects:

[0018] When the safe jacking control system is used, because the monitoring device, the handle reversing device and the control device are included, the monitoring device can monitor the installation and dismounting work of the jacking operation, the control device determines the yaw direction that the handle assembly needs to be limited according to the monitoring result of the monitoring device, the control device controls the locking assembly according to the yaw direction that the handle assembly needs to be limited, so that the locking assembly limits the yaw direction that the handle assembly needs to be limited, and the installation and dismounting worker cannot yaw the handle assembly toward the limited yaw direction by hand, thereby avoiding major accidents caused by non-standard operation of the installation and dismounting worker, and truly realizing the prevention and stopping of the jacking accident in the tower lifting or lowering process.

[0019] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of embodiments of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain embodiments of the application. The drawings presented are structural diagrams of the handle reversing device according to an embodiment of the application, and are used to explain the embodiments of the application together with the specific embodiments below, but do not constitute a limitation on the embodiments of the application. For those of ordinary skill in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0021] Figure 1 is a structural diagram of one of the internal perspectives of the handle reversing device according to an embodiment of the application;

[0022] Figure 2 is a structural diagram of another internal perspective of the handle reversing device according to an embodiment of the application;

[0023] Figure 3 is a structural diagram of one of the external perspectives of the handle reversing device according to an embodiment of the application;

[0024] Figure 4 is a structural diagram of another external perspective of the handle reversing device according to an embodiment of the application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 100 handle assembly 110 deflection driving rod

[0027] 120 locking member 121 one-way hinge

[0028] 130 unlocking member 140 reversing handle seat

[0029] 141 moving seat 142 handle body

[0030] 143 installation space 150 guide rail

[0031] 160 second movable block 170 installation plate

[0032] 200 locking assembly 210 fixed seat

[0033] 211 first guide opening 212 second guide opening

[0034] 213 first connecting assembly 214 second connecting assembly

[0035] 215 installation collar 216 connecting rod

[0036] 220 first movable block 230 first control lock

[0037] 300 housing 301 first outward extending opening

[0038] 302 second overhung opening 400 alarm

[0039] 500 master control circuit board DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended for explanation and illustration of the present application and are not intended to limit the present application.

[0041] The safety jacking control system of the present application is described below with reference to the accompanying drawings.

[0042] As shown in Figure 1 and Figure 2 The present application provides a safety jacking control system, wherein the safety jacking control system comprises:

[0043] a monitoring device for monitoring the installation and dismounting work of the jacking operation;

[0044] a handle reversing device comprising a handle assembly 100 and a locking assembly 200, the handle assembly 100 is drivingly connected with a reversing valve of a jacking hydraulic cylinder, and the locking assembly 200 is used for limiting the yawing direction of the handle assembly 100;

[0045] a control device which is communicatively connected with the monitoring device and the locking assembly 200 and is configured to:

[0046] control the locking assembly 200 to limit at least one yawing direction of the handle assembly 100 according to the monitoring result of the monitoring device.

[0047] When the above safety jacking control system is used, since the monitoring device, the handle reversing device and the control device are included, the installation and dismounting work of the jacking operation can be monitored by the monitoring device, the control device determines the yawing direction required to be limited by the handle assembly 100 according to the monitoring result of the monitoring device, and the control device controls the locking assembly 200 according to the yawing direction required to be limited by the handle assembly 100, so that the locking assembly 200 limits the yawing direction required to be limited by the handle assembly 100. Therefore, the installation and dismounting worker cannot yaw the handle assembly 100 towards the limited yawing direction by hand, so that the major accidents caused by the non-standard operation of the installation and dismounting worker can be avoided, and the prevention and stopping of the jacking accidents during the tower lifting or lowering process can be truly realized.

[0048] Specifically, the monitoring device can be a machine vision device that can monitor key components (e.g., steps, standard section pins, jacking beams, etc.) during the jacking operation. The control device can identify the current process step of the jacking operation based on the monitoring results of the monitoring device and determine whether the current installation and removal work is in place. Of course, the present invention is not limited to this. The monitoring device can also be a sensor device, and sensors can be installed on key components during the jacking operation to detect them.

[0049] More specifically, the control device may be further configured to:

[0050] When it is determined according to the monitoring result of the monitoring device that the cylinder load needs to be prohibited, the locking assembly 200 is controlled to switch to limit the yaw direction of the handle assembly 100 used to drive the jacking hydraulic cylinder to extend;

[0051] When it is determined according to the monitoring result of the monitoring device that the cylinder unloading needs to be prohibited, the locking assembly 200 is controlled to switch to limit the yaw direction of the handle assembly 100 for driving the jacking hydraulic cylinder to retract.

[0052] It can be understood that prohibiting cylinder loading means prohibiting the weight of the tower crane from being transferred to the jacking hydraulic cylinder. For example, the jacking beam is not hung properly, the upper part is not balanced, etc. In this case, the locking assembly 200 should be switched to limit the yaw direction of the handle assembly 100 used to drive the jacking hydraulic cylinder to extend; prohibiting cylinder unloading means prohibiting the weight on the jacking hydraulic cylinder from being transferred to the tower crane. For example, the support rod has not been stepped on, the standard section pin shaft has not been installed, etc. In this case, the locking assembly 200 should be switched to limit the yaw direction of the handle assembly 100 used to drive the jacking hydraulic cylinder to retract.

[0053] Please continue to see Figure 1 and Figure 2 In one embodiment of the present invention, the locking assembly 200 includes a fixed base 210, a first movable block 220, and two first control locks 230. The fixed base 210 is fixedly arranged near the handle assembly 100. The two first control locks 230 are arranged on the fixed base 210 in sequence along the swing direction of the handle assembly 100. The telescopic lock cores of the two first control locks 230 can be telescopically arranged in parallel toward the same end, and can enclose a locking space when the telescopic lock cores are both extended. The first movable block 220 is connected to the handle assembly 100 and placed in the locking space, so that when the telescopic lock core of at least one first control lock 230 is extended, at least one swing direction of the handle assembly 100 can be restricted. The control device is respectively communicated with the two first control locks 230 and is further configured as follows:

[0054] When it is determined according to the monitoring result of the monitoring device that the oil cylinder needs to be loaded, the extension lock cylinder of the first control lock 230 that can limit the deflection direction of the handle assembly 100 for driving the jacking hydraulic cylinder to extend is controlled to extend;

[0055] When it is determined according to the monitoring result of the monitoring device that the oil cylinder needs to be unloaded, the extension lock cylinder of the first control lock 230 that can limit the deflection direction of the handle assembly 100 for driving the jacking hydraulic cylinder to retract is controlled to extend.

[0056] Therefore, during the jacking operation of lifting or lowering the tower, if it is determined according to the monitoring result of the monitoring device that the current installation and disassembly work has not been completed and the oil cylinder needs to be loaded, the extension lock cylinder of the corresponding one of the first control locks 230 can be controlled to extend to limit the deflection movement of the handle assembly 100 to one side of the first control lock 230, thereby limiting the switching of the handle assembly 100 to the jacking hydraulic cylinder to extend; if it is determined that the current installation and disassembly work has not been completed and the oil cylinder needs to be unloaded, the extension lock cylinder of the corresponding other one of the first control locks 230 can be controlled to extend to limit the deflection movement of the handle assembly 100 to one side of the first control lock 230, thereby limiting the switching of the handle assembly 100 to the jacking hydraulic cylinder to retract. Through the setting of the first movable block 220 and the two first control locks 230, the locking assembly 200 limits the deflection direction of the handle assembly 100 more simply and reliably.

[0057] Specifically, when the lower end of the handle assembly 100 is drivingly connected to the switching valve of the jacking hydraulic cylinder, the extension lock cylinders of the two first control locks 230 can be arranged to extend downward in parallel, and the first movable block 220 is not only arranged in the neutral space formed by the extension of the extension lock cylinders of the two first control locks 230, but also extends to the lower side of the lock body of the two first control locks 230 one by one. At the same time, in the case where the oil cylinder needs to be loaded or unloaded, only the extension lock cylinder of the corresponding one of the first control locks 230 can be arranged to extend, and the extension lock cylinder of the other one of the first control locks 230 can be arranged to retract. In addition, in some emergency situations, the extension lock cylinders of the two first control locks 230 can be controlled to extend at the same time to limit the bidirectional deflection of the handle assembly 100.

[0058] In an embodiment of the present application, the handle assembly 100 comprises a deflection driving rod 110, an unlocking module and a reversing handle seat 140, the deflection driving rod 110 can be the original handle of the pump station, and is drivingly connected with the reversing valve of the jacking hydraulic cylinder, the unlocking module comprises a locking piece 120 and an unlocking piece 130 which can be locked or unlocked to the locking piece 120, one of the locking piece 120 and the unlocking piece 130 is sequentially provided on the deflection driving rod 110 in a direction away from the reversing valve of the jacking hydraulic cylinder, and the other one of the locking piece 120 and the unlocking piece 130 is provided on the reversing handle seat 140, the reversing handle seat 140 is movably arranged and used to drive the deflection driving rod 110 to deflect when the unlocking piece 130 is locked to the locking piece 120, and the control device is further communicatively connected with the unlocking piece 130 and is configured to:

[0059] In a case where it is determined that the oil cylinder load and the oil cylinder unloading need to be simultaneously prohibited, the unlocking piece 130 is controlled to be unlocked to the locking piece.

[0060] Further, through the addition of the reversing handle seat 140 and the unlocking module, the hand driving part can be transferred from the deflection driving rod 110 to the reversing handle seat 140, and after the reversing handle seat 140 establishes the connection with the deflection driving rod 110 through the unlocking module, the hand driving reversing handle seat 140 can drive the deflection driving rod 110 to deflect, and after the reversing handle seat 140 releases the connection with the deflection driving rod 110 through the unlocking module, the hand driving reversing handle seat 140 cannot drive the deflection driving rod 110 to deflect, so that in an emergency, the unlocking piece 130 can be controlled by the control device to release the locking of the reversing handle seat 140 to the deflection driving rod 110, and even if the reversing handle seat 140 is hand driven by the installation and removal worker, the deflection driving rod 110 cannot be driven to deflect, so that the jacking hydraulic cylinder is completely prohibited from running, and further, a major accident caused by the non-standard operation of the installation and removal worker is avoided. Further, whether the oil cylinder load and the oil cylinder unloading need to be simultaneously prohibited can be determined according to the monitoring result of the monitoring device, and can also be determined through the input instruction received by the control device.

[0061] In an embodiment of the present application, the unlocking piece 130 comprises a second control lock, the telescopic lock cylinder of the second control lock can be extended into or retracted out of the lock space formed by the locking piece 120, the control device is communicatively connected with the second control lock and is further configured to:

[0062] In a case where it is determined that the oil cylinder load and the oil cylinder unloading need to be simultaneously prohibited, the telescopic lock cylinder of the second control lock is controlled to be retracted out of the lock space of the locking piece 120.

[0063] Specifically, the unlocking piece 130 can be a second control lock arranged in a telescopic manner with the telescopic lock cylinder, and the second control lock is consistent with the first control lock 230 in structure, facilitating production and manufacturing. Of course, the present application is not limited thereto, and other suitable unlocking modules are also possible, for example, the unlocking piece 130 is provided with a rotatable and swingable buckle arm, the locking piece 120 is formed with a buckle space for the buckle arm, when the buckle arm is rotated and swung to be buckled in the buckle space, the reversing handle seat 140 is connected with the swing driving rod 110, and when the buckle arm is rotated and swung to be separated from the buckle space, the reversing handle seat 140 is disconnected with the swing driving rod 110.

[0064] In an embodiment of the present application, the locking piece 120 includes two one-way hinges 121 arranged in sequence along the swing direction of the swing driving rod 110, so that the gap between the two one-way hinges 121 forms a lock space, and the two one-way hinges 121 are arranged to be rotatable inward. That is, when the telescopic lock cylinder of the second control lock extends into the lock space, the telescopic lock cylinder of the second control lock cannot run out from the inside, because the two one-way hinges 121 cannot rotate outward, so that the stability of the connection between the telescopic lock cylinder of the second control lock and the locking piece 120 can be ensured. At the same time, if the telescopic lock cylinder of the second control lock extends outward of the one-way hinge 121 in an unexpected situation, the telescopic lock cylinder of the second control lock can also push the one-way hinge 121 inward, and the one-way hinge 121 can be reset under the action of the hinge spring itself when losing the abutting action of the telescopic lock cylinder, so as to realize the locking connection between the locking piece 120 and the second control lock again. Such design can avoid the phenomenon that the transmission cannot be performed due to the misalignment between the reversing handle seat 140 and the swing driving rod 110. It should be particularly noted that the inward side of the two one-way hinges 121 refers to the side where the two one-way hinges 121 are close to each other, and the outward side of the two one-way hinges 121 refers to the side where the two one-way hinges 121 are away from each other.

[0065] In an embodiment of the present application, the deflection driving rod 110 and the two first control locks 230 are arranged on opposite sides of the fixed seat 210, the fixed seat 210 is sequentially and spaced apart along the length direction of the deflection driving rod 110 and is provided with the first guide opening 211 and the second guide opening 212 which are arranged in parallel and are both straight strips, the first movable block 220 is connected with the deflection driving rod 110 through the first connecting assembly 213 which passes through the first guide opening 211, one of the locking member 120 and the unlocking member 130 is connected with the deflection driving rod 110 through the second connecting assembly 214 which passes through the second guide opening 212, and the handle assembly 100 further comprises a guide rail 150 which is arranged in parallel with the first guide opening 211 and can movably arrange the reversing handle seat 140. That is, through the arrangement of the first guide opening 211 and the second guide opening 212, the translational movement of the first movable block 220 and one of the locking member 120 and the unlocking member 130 can be realized, and at the same time, the reversing handle seat 140 is movably arranged on the guide rail 150 which is arranged in parallel with the first guide opening 211, so that the deflection movement of the deflection driving rod 110 can be converted into the translational movement of the reversing handle seat 140, thereby facilitating the locking operation of the unlocking module, and the design and manufacture of the subsequent shell 300 will also be simpler. Of course, the present application is not limited thereto, and the reversing handle seat 140 can also be arranged to be deflectable and movable.

[0066] In an embodiment of the present application, the handle assembly 100 further comprises a second movable block 160 and a mounting plate 170, the second movable block 160 is arranged on the same side of the two first control locks 230 and is connected with the deflection driving rod 110 through the second connecting assembly 214, and the mounting plate 170 is arranged on the second movable block 160 and can be used for mounting one of the locking member 120 and the unlocking member 130. Through the addition of the second movable block 160, the translational movement of the second movable block 160 can be ensured to be stable by being attached to the fixed seat 210, and the addition of the mounting plate 170 can facilitate the mounting of one of the locking member 120 and the unlocking member 130 and achieve the purposes of weight reduction and cost reduction. Specifically, the thickness dimension of the first movable block 220 is greater than the opening width dimension of the first guide opening 211, and the thickness dimension of the second movable block 160 is greater than the opening width dimension of the second guide opening 212, so that the first movable block 220 and the second movable block 160 will not be separated from the fixed seat 210, the mounting plate 170 comprises a first plate portion and a second plate portion, the first plate portion is arranged on the side of the second movable block 160 which faces the first control lock 230, the second plate portion is arranged in a downwardly bent and extended manner from the end of the first plate portion which is away from the fixed seat 210, and the locking member 120 is arranged on the side of the second plate portion which is away from the fixed seat 210.

[0067] Please refer again to Figure 1 and Figure 2In an embodiment of the present application, the first connecting assembly 213 and / or the second connecting assembly 214 each comprises a mounting collar 215 and a connecting rod 216, the mounting collar 215 is sleeved on the yawing driving rod 110 and has a gap between the mounting collar 215 and the yawing driving rod 110, and the connecting rod 216 connects the mounting collar 215 and the corresponding movable block through the corresponding guide opening. Through the arrangement of the mounting collar 215, the second connecting assembly 214 can smoothly convert the translational driving of the reversing handle seat 140 into the yawing movement of the yawing driving rod 110, and the first connecting assembly 213 can smoothly convert the yawing movement of the yawing driving rod 110 into the translational movement of the first movable block 220. Specifically, the mounting collar 215 comprises two split sleeves, which are detachably connected at the same direction end of the yawing driving rod 110.

[0068] In an embodiment of the present application, the reversing handle seat 140 comprises a moving seat 141 and a handle body 142 connected with the moving seat 141, and the moving seat 141 is movably arranged away from the handle body 142, and the moving seat 141 is formed with a mounting space 143 for mounting the unlocking piece 130. The addition of the moving seat 141 makes the reversing handle seat 140 not only movable, but also facilitates the mounting of the unlocking piece 130. Specifically, the moving seat 141 is built by a bottom plate, a top plate and a side plate, the outer side of the bottom plate is provided with a sliding block part in sliding fit connection with the guide rail 150, the outer side of the top plate is connected with the handle body 142, the unlocking piece 130 is arranged in the mounting space 143 between the bottom plate and the top plate, and the telescopic lock cylinder of the unlocking piece 130 is arranged to be extended from the mounting space 143.

[0069] Referring to Figures 1 to 4 In an embodiment of the present application, the handle reversing device further comprises a shell 300, the shell 300 is enclosed to form an inner cavity for accommodating the handle assembly 100 and the locking assembly 200, and the opposite sides of the shell 300 are respectively and one by one provided with a first outward opening 301 and a second outward opening 302, the first outward opening 301 is provided for the yawing driving rod 110 to extend out to be drivingly connected with the reversing valve of the jacking hydraulic cylinder, and the second outward opening 302 is provided for the reversing handle seat 140 to extend out for manual operation. Through the addition of the shell 300, the handle assembly 100 and the locking assembly 200 can be protected, and the installer is limited to only operate the reversing handle seat 140. Specifically, the fixed seat 210 and the guide rail 150 are spaced apart on the inner wall of the shell 300.

[0070] In an embodiment of the present application, the safe jacking control system further comprises an alarm 400, and the control device is further in communication connection with the alarm 400 and is configured to:

[0071] The control alarm 400 gives an alarm prompt for the yawing direction of the handle assembly 100.

[0072] Specifically, the addition of the alarm 400 makes it possible to remind the erection and dismantling worker of the current restricted yawing direction of the handle assembly 100. Specifically, the control device comprises a master control circuit board 500, the alarm 400 and the master control circuit board 500 can be arranged in the inner cavity of the housing 300, the master control circuit board 500 can be in communication connection with the first control lock 230 and the unlocking piece 130, the master control circuit board 500 can receive the monitoring result of the monitoring device, the master control circuit board 500 determines the required restricted yawing direction of the handle assembly 100 according to the monitoring result and controls the first control lock 230, the unlocking piece 130 and the alarm 400 according to the required restricted yawing direction of the handle assembly 100, and the alarm 400 can include but is not limited to a voice broadcaster.

[0073] It can be understood that if the erection and dismantling steps of the erection and dismantling worker are not in place and do not meet the process, the safe jacking system can give the following three instructions according to the monitoring result of the monitoring device:

[0074] 1. Prohibit the oil cylinder load: prohibit the weight on the tower crane from being transferred to the jacking hydraulic cylinder, for example, the jacking cross beam is not hung well, the upper load is not leveled, etc. In this case, the control can extend the extension lock cylinder of the first control lock 230 for limiting the yawing direction of the handle assembly 100 for driving the jacking hydraulic cylinder to extend.

[0075] 2. Prohibit the oil cylinder unloading: prohibit the weight of the jacking hydraulic cylinder from being transferred to the tower crane, for example, the support rod is not stable, the standard section pin shaft is not installed, etc. In this case, the control can extend the extension lock cylinder of the first control lock 230 for limiting the yawing direction of the handle assembly 100 for driving the jacking hydraulic cylinder to retract.

[0076] 3. Completely prohibit the oil cylinder from running: when an emergency occurs and the oil cylinder load and the oil cylinder unloading need to be prohibited at the same time, the control retracts the extension lock cylinder of the second control lock to exit the locking space of the locking piece 120, disconnects the reversing handle seat 140 in the handle assembly 100 from the yawing driving rod 110, and the yawing driving rod 110 can follow the spool of the reversing valve to return to the middle position under the action of the original spring of the reversing valve, and completely locks the operation of the handle assembly 100.

[0077] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0078] In this application, unless otherwise clearly indicated, the terms "mounting", "connection", "connecting", "fixed", "fixedly connected" and the like should be understood in the broadest sense as intended by the inventors, such as it can be fixedly connected, detachably connected, or integral; it can be mechanical connection, or electrical connection, or communication with each other; it can be direct connection, or indirect connection via an intermediate medium; it can be the internal communication of two elements, or the interaction between two elements, unless otherwise clearly indicated. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0079] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0080] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A safe lifting control system, characterized in that: The safety jacking control system includes: Monitoring device for monitoring the installation and removal of jacking operations; A handle reversing device comprises a handle assembly (100) and a locking assembly (200), wherein the handle assembly (100) can be driven and connected to a reversing valve of a lifting hydraulic cylinder, and the locking assembly (200) is used to limit the yaw direction of the handle assembly (100); A control device is communicatively connected to the monitoring device and the locking assembly (200) and is configured to: The locking assembly (200) is controlled to limit at least one yaw direction of the handle assembly (100) according to the monitoring result of the monitoring device.

2. The safety jacking control system according to claim 1, characterized in that: The locking assembly (200) includes a fixed seat (210), a first movable block (220) and two first control locks (230), wherein the fixed seat (210) is fixedly arranged near the handle assembly (100), and the two first control locks (230) are arranged on the fixed seat (210) in sequence along the yaw direction of the handle assembly (100), and the telescopic lock cores of the two first control locks (230) can be arranged to be telescopically arranged in parallel toward the same end, and can enclose a locking space when the telescopic lock cores are both extended, and the first movable block (220) is connected to the handle assembly (100) and placed in the locking space, so that when the telescopic lock core of at least one of the first control locks (230) is extended, at least one yaw direction of the handle assembly (100) can be restricted, and the control device is respectively connected to the two first control locks (230) in communication and further configured as follows: When it is determined according to the monitoring result of the monitoring device that the cylinder load needs to be prohibited, the telescopic lock core of the first control lock (230) that can limit the yaw direction of the handle assembly (100) used to drive the lifting hydraulic cylinder to extend is controlled to extend; When it is determined according to the monitoring result of the monitoring device that the cylinder unloading needs to be prohibited, the telescopic lock core of the first control lock (230) that can limit the swing direction of the handle assembly (100) for driving the jacking hydraulic cylinder to retract is extended.

3. The safety jacking control system according to claim 2, characterized in that: The handle assembly (100) comprises a yaw drive rod (110), an unlocking module and a reversing handle seat (140); the yaw drive rod (110) is connected to the reversing valve of the lifting hydraulic cylinder; the unlocking module comprises a locking member (120) and an unlocking member (130) that can be locked or unlocked with the locking member (120); the yaw drive rod (110) is provided with the first movable block (220) and the first movable block (220) in sequence in a direction away from the reversing valve of the lifting hydraulic cylinder. One of the locking member (120) and the unlocking member (130), and the other of the locking member (120) and the unlocking member (130) are arranged on the reversing handle seat (140), and the reversing handle seat (140) is movably arranged and used to drive the yaw driving rod (110) to yaw when the unlocking member (130) is locked to the locking member (120), and the control device is also communicatively connected with the unlocking member (130) and is configured as follows: When it is determined that both cylinder loading and cylinder unloading need to be prohibited, the unlocking member (130) is controlled to be unlocked by the locking member (120).

4. The safety jacking control system according to claim 3, characterized in that: The unlocking member (130) includes a second control lock, the telescopic lock core of the second control lock can be extended into or retracted out of the lock opening space formed by the locking member (120), and the control device is communicatively connected to the second control lock and is further configured as follows: When it is determined that both cylinder loading and cylinder unloading need to be prohibited, the telescopic lock core of the second control lock is controlled to retract and exit the lock opening space of the locking member (120).

5. The safety jacking control system according to claim 4, characterized in that: The locking member (120) comprises two one-way hinges (121), the two one-way hinges (121) being arranged in sequence along the yaw direction of the yaw drive rod (110), so that the gap between the two one-way hinges (121) forms the locking space, and the two one-way hinges (121) are arranged to be rotatable toward the inside.

6. The safety jacking control system according to claim 3, characterized in that: The yaw drive rod (110) and the two first control locks (230) are respectively arranged on opposite sides of the fixed seat (210); the fixed seat (210) is provided with a first guide opening (211) and a second guide opening (212) which are arranged in parallel and are both in the shape of straight strips in sequence along the length direction of the yaw drive rod (110); the first movable block (220) is connected to the yaw drive rod (110) through a first connecting component (213) passing through the first guiding opening (211); one of the locking member (120) and the unlocking member (130) is connected to the yaw drive rod (110) through a second connecting component (214) passing through the second guiding opening (212); the handle assembly (100) further includes a guide rail (150); the guide rail (150) and the first guide opening (211) are arranged parallel to each other and can be provided for the reversing handle seat (140) to be movably arranged.

7. The safety jacking control system according to claim 6, characterized in that: The handle assembly (100) further includes a second movable block (160) and a mounting plate (170). The second movable block (160) is arranged on the same side as the two first control locks (230) and is connected to the yaw drive rod (110) via the second connecting assembly (214). The mounting plate (170) is arranged on the second movable block (160) and can be used to install one of the locking member (120) and the unlocking member (130).

8. The safety lifting control system according to claim 7, characterized in that: The first connecting assembly (213) and / or the second connecting assembly (214) both comprise a mounting collar (215) and a connecting rod (216); the mounting collar (215) is sleeved on the yaw drive rod (110) and a gap exists between the mounting collar and the yaw drive rod (110); and the connecting rod (216) passes through a corresponding guide opening to connect the mounting collar (215) and a corresponding movable block.

9. The safety jacking control system according to claim 3, characterized in that: The handle reversing device further comprises a housing (300), wherein the housing (300) encloses an inner cavity for accommodating the handle assembly (100) and the locking assembly (200), and a first outward-extending opening (301) and a second outward-extending opening (302) are respectively provided on opposite sides of the housing (300), wherein the first outward-extending opening (301) allows the yaw drive rod (110) to extend so as to be connected to the reversing valve drive of the jacking hydraulic cylinder, and the second outward-extending opening (302) allows the reversing handle seat (140) to extend so as to be manually operated.

10. The safety jacking control system according to any one of claims 1 to 9, characterized in that: The safety jacking control system further comprises an alarm (400), and the control device is also communicatively connected to the alarm (400) and configured to: The alarm (400) is controlled to issue an alarm prompt for limiting the deflection direction of the handle assembly (100).

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