Intelligent anti-rollover system of crane and crane

Abstract

The intelligent anti-rollover system comprises a soil ground, a framework device, a fixing device and supporting devices, the framework device is fixedly connected to the soil ground, the fixing device is fixedly connected to the top of the framework device, and the supporting devices are arranged on the two sides of the framework device. According to the invention, the infrared generator emits infrared rays to the infrared receiver in real time, and when the infrared receiver finds that the received infrared rays deviate to a certain degree, the crane rolls over to a certain degree, so that the control device starts the telescopic cylinder at the position, and the height at the position is properly adjusted; and when the crane base is adjusted to a proper height and infrared rays received by the infrared receiver do not deviate, the crane base is adjusted to be horizontal, so that rollover is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and in particular to an intelligent anti-rollover system for cranes and a crane. Background Art

[0002] A crane is a machine that lifts or moves heavy objects through a lifting hook or other lifting device. As the position of the heavy object changes, the center of gravity of the crane is constantly shifting. When its center of gravity moves to a more offset position, there may be a risk of tipping over, causing a major accident.

[0003] At present, there is no special control device to prevent rollover. Only some improvement methods have been proposed to improve vehicle stability, such as: selecting a heavier chassis, arranging the position of the crane, increasing the span of the support legs, adding auxiliary support legs, adding counterweights, etc. Although these solutions play a certain role in preventing rollover, there are still safety hazards. In windy weather, although there will be no people inside the crane, the crane will shake to a certain extent in windy weather, and severe shaking will still cause the risk of rollover.

[0004] China Authorized Invention Publication (Announcement) No.: CN114408775A A kind of intelligent anti-rollover system for crane and crane, including an anti-rollover device and a signal receiving device, the anti-rollover device and the signal receiving device are electrically connected, the anti-rollover device includes two symmetrically arranged mounting columns, a slide is provided between the mounting columns, a slide is provided on the slide, two support plates are provided at the bottom end of the mounting columns, two first electric-controlled oil cylinders are provided on the support plates, the top of the first electric-controlled oil cylinder is connected to the bottom end of the mounting column, a fixing mechanism is provided on the support plate between the two first electric-controlled oil cylinders, a fastening mechanism is also provided on the mounting column, and a protective mechanism is provided on the outer side of the support plate.

[0005] Although the above invention can fix the crane by a fixing mechanism, and reinforce the crane by lifting the second fixing column and fixing it in the soil on both sides when necessary, the above operation steps all require manual assistance. However, if it is windy, the operator is generally not at the crane. Even if at the crane, the operation of the crane is more troublesome in windy weather and has certain limitations. Summary of the invention

[0006] The object of the present invention is to provide an intelligent anti-rollover system for a crane and a crane, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A crane intelligent anti-rollover system includes a mud floor, a skeleton device, a fixing device, and a supporting device. The skeleton device includes a beam and a horizontal connecting beam. Horizontal connecting beams are longitudinally arranged on both sides of the beam. Connecting columns are arranged at the front and rear ends of the two horizontal connecting beams. A connecting plate is arranged at the bottom of the connecting column. An insert column is arranged at the bottom center of the connecting plate. The insert column is inserted into the mud floor. A supporting steel plate is arranged at the top of the mud floor. The supporting steel plate is anchored to the mud floor. The top of the supporting steel plate is located at the bottom of the supporting plate. The supporting plates are connected to each other by fixing bolts. The top of the beam is fixedly connected with a fixing device, and the inner tops of the two connecting columns on the same side are provided with a supporting device.

[0009] Preferably, the supporting device includes a rotating shaft, a supporting plate, and a sliding guide rail. The top of the supporting steel plate and the two sides of the skeleton device are fixedly connected with the sliding guide rail. The top of the sliding guide rail is provided with a sliding inner cavity. The centers of the two sides of the sliding inner cavity are provided with a first threaded rod. A sliding block is sleeved on the surface of the first threaded rod. The sliding block is slidably connected in the sliding inner cavity. The first connecting plate is provided on both sides of the top of the sliding block.

[0010] Preferably, the two ends of the rotating shaft are respectively connected to the inner top of the connecting column, a support plate is provided on the surface of the rotating shaft, and second connecting plates are provided on both sides of the other end of the support plate, the front faces of the two second connecting plates are respectively in contact with the back faces of different first connecting plates, and the first connecting plate and the second connecting plate are connected by a pin shaft.

[0011] Preferably, a first driving inner cavity is opened on the inner outer side of the sliding guide rail, a third driving motor is fixedly connected to the first driving inner cavity, and an output end of the third driving motor is connected to the first threaded rod.

[0012] Preferably, the fixing device includes a fixing device body, the bottom of which is fixedly connected to the beam, an inner cavity is opened inside the fixing device body, screw rods are arranged at the centers of both sides of the inner cavity of the fixing device body, sliding rods are sleeved on the surface of the screw rods, limiting rods are arranged on both sides of the sliding rods, and both ends of the limiting rods are respectively connected to the two sides of the inner cavity of the fixing device body, extension plates extend from the tops of both sides of the fixing device body, and a plurality of hydraulic support legs are arranged at the bottom of the extension plates.

[0013] Preferably, the top of the sliding rod is fixedly connected with a movable plate, the top of the fixing device body is provided with a through groove, the through groove is the connecting part of the sliding rod and the movable plate, the back of the movable plate is provided with a fixing block, the front of the fixing block is provided with a fixing block notch, the fixing block notch is snap-fittedly connected to the back of the crane base, a slide groove is longitudinally provided at the top front end center of the movable plate, a driving shell is provided at the front center of the movable plate, a second threaded rod is provided at the front and rear end centers of the slide groove, a sliding block is sleeved on the surface of the second threaded rod, the sliding block is embedded and slidably connected to the slide groove, a movable plate is provided at the top of the sliding block, a movable plate is provided at the back of the movable plate with a movable plate notch, the movable plate notch is snap-fittedly connected to the front of the crane base, a second driving motor is fixedly connected to the inside of the driving shell, and the output end of the second driving motor is connected to the second threaded rod.

[0014] Preferably, a shock absorbing mechanism is provided at the top center of the movable plate, the top of the shock absorbing mechanism is connected to the bottom of the crane base, lifting blocks are provided on both sides of the top of the movable plate, a telescopic cylinder is fixedly connected to the top of the movable plate and located on the inner side of the lifting block, a fixing plate is provided on the top of the telescopic cylinder, the top of the fixing plate is connected to the crane base, an infrared generator is provided inside the fixing plate, a through hole is opened inside the fixing plate and is in the same horizontal plane as the emitting port of the infrared generator, an infrared receiver is fixedly connected to the top of the lifting block, and the through hole and the infrared receiver are in the same horizontal plane.

[0015] Preferably, a concrete floor is provided on the top of the supporting steel plate, the top of the concrete floor is in the same horizontal plane as the top of the sliding guide rail, and supporting sponges are provided at both ends of the bottom of the supporting plate, and the bottom of the supporting sponge is in contact with the concrete floor.

[0016] A crane comprises the above-mentioned intelligent anti-rollover system for crane and a crane body, wherein the top of the crane base is fixedly connected to the crane body, and the outer top of the crane body is fixedly connected to an anemometer.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The intelligent anti-rollover system and crane of the present invention transmit infrared rays to an infrared receiver in real time through an infrared generator. When the infrared receiver finds that the received infrared rays are offset to a certain extent, it indicates that the crane has rolled over to a certain extent, so that the control device starts the telescopic cylinder at this location and appropriately adjusts the height at this location. When the height is adjusted to a suitable height, the infrared rays received by the infrared receiver are not offset, and the crane base is adjusted to a horizontal level, thereby preventing the occurrence of rollover.

[0019] The intelligent anti-rollover system and crane of the present invention are provided with an anemometer at the top of the outer side of the crane body. The anemometer will measure the wind speed in the environment in real time, and then start the third drive motor to properly adjust the angle between the support plate and the concrete floor, thereby making the stability of the support device more stable. In addition, the control device can also start the hydraulic support legs to support the hydraulic support legs to the ground when the wind speed is too high, thereby making the device more stable and preventing the occurrence of rollover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the skeleton device of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the fixing device of the present invention;

[0023] Figure 4 It is a transverse cross-sectional view of a fixing housing in the fixing device of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the movable plate in the fixing device of the present invention;

[0025] Figure 6 It is a transverse cross-sectional view of a movable plate in the fixing device of the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0027] Figure 8 A longitudinal cross-sectional view of a movable plate in the fixing device of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the support device of the present invention;

[0029] Fig.10 for Fig. 9 Enlarged view of point A in the middle;

[0030] Fig.11 It is a transverse cross-sectional view of the sliding guide rail in the support device of the present invention.

[0031] In the figure: 1, mud ground; 2, supporting steel plate; 3, concrete ground; 4, supporting device; 401, rotating shaft; 402, supporting plate; 403, sliding guide rail; 404, sliding inner cavity; 405, first threaded rod; 406, sliding block; 407, first connecting plate; 408, second connecting plate; 409, pin; 410, first driving inner cavity; 411, third driving motor; 5, skeleton device; 501, beam; 502, horizontal connecting beam; 503, connecting column; 504, connecting plate; 505, inserting column; 6, fixing device; 601, fixing device body; 602, extension plate; 603, hydraulic support leg; 604, through groove; 60 5. Limit rod; 606. Screw rod; 607. Movable plate; 608. Lifting block; 609. Fixed block; 610. Fixed block notch; 611. Slide groove; 612. Drive housing; 613. Second drive inner cavity; 614. First drive motor; 615. Sliding rod; 616. Telescopic cylinder; 617. Fixed plate; 618. Infrared receiver; 619. Movable plate; 620. Second threaded rod; 621. Infrared generator; 622. Through hole; 623. Second drive motor; 624. Movable plate notch; 625. Shock absorbing mechanism; 626. Sliding block; 7. Anemometer; 8. Crane base; 9. Crane body; 10. Support sponge. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1-11 , the present invention provides a technical solution:

[0036] A crane intelligent anti-rollover system comprises a dirt ground 1, a skeleton device 5, a fixing device 6, and a supporting device 4. The skeleton device 5 comprises a beam 501 and a horizontal connecting beam 502. Horizontal connecting beams 502 are longitudinally arranged on both sides of the beam 501. Connecting columns 503 are arranged at the front and rear ends of the two horizontal connecting beams 502. A connecting plate 504 is arranged at the bottom of the connecting column 503. An insert column 505 is arranged at the bottom center of the connecting plate 504. The insert column 505 is inserted into the dirt ground 1. A supporting steel plate 2 is arranged at the top of the dirt ground 1. The supporting steel plate 2 is anchored on the dirt ground 1. The top of the supporting steel plate 2 is located at the bottom of the supporting plate 402. The supporting plate 402 is connected to the supporting steel plate 2 by fixing bolts. The top of the beam 501 is fixedly connected with the fixing device 6. The inner tops of the two connecting columns 503 on the same side are provided with the supporting device 4.

[0037] Furthermore, the supporting device 4 includes a rotating shaft 401, a supporting plate 402, and a sliding guide rail 403. The sliding guide rails 403 are fixedly connected to the top of the supporting steel plate 2 and located on both sides of the skeleton device 5. A sliding inner cavity 404 is opened at the top of the sliding guide rail 403. The centers of both sides of the sliding inner cavity 404 are provided with first threaded rods 405. A sliding block 406 is sleeved on the surface of the first threaded rod 405. The sliding block 406 is slidably connected in the sliding inner cavity 404. First connecting plates 407 are provided on both sides of the top of the sliding block 406.

[0038] Furthermore, the two ends of the rotating shaft 401 are respectively connected to the inner top of the connecting column 503, and a support plate 402 is provided on the surface of the rotating shaft 401. Second connecting plates 408 are provided on both sides of the other end of the support plate 402. The front faces of the two second connecting plates 408 are respectively in contact with the back faces of different first connecting plates 407, and the first connecting plate 407 and the second connecting plate 408 are connected by a pin shaft 409.

[0039] Furthermore, a first driving inner cavity 410 is opened on the inner and outer sides of the sliding guide rail 403 , and a third driving motor 411 is fixedly connected to the first driving inner cavity 410 . The output end of the third driving motor 411 is connected to the first threaded rod 405 .

[0040] Specifically, the anemometer 7 located on the top outer side of the crane body 9 will detect the wind speed in the environment in real time. When the wind speed is too high, the control device can appropriately adjust the angle between the support plate 402 and the concrete floor 3. For example, an equilateral triangle is the most stable. When the wind speed is too high, the angle between the support plate 402 and the concrete floor can be appropriately increased. When adjustment is needed, the third drive motor 411 will be started. After the third drive motor 411 rotates, it will cause the first threaded rod 405 to rotate. The rotation of the first threaded rod 405 will cause the slider 406 to move. After the slider 406 moves, the angle between the support plate 402 and the concrete floor 3 will change.

[0041] Furthermore, the fixing device 6 includes a fixing device body 601, the bottom of which is fixedly connected to the beam 501, an inner cavity is opened inside the fixing device body 601, screw rods 606 are arranged at the centers of both sides of the inner cavity of the fixing device body 601, sliding rods 615 are sleeved on the surface of the screw rods 606, and limiting rods 605 are arranged on both sides of the sliding rods 615, and both ends of the limiting rods 605 are respectively connected to both sides of the inner cavity of the fixing device body 601, and extension plates 602 are extended from the tops of both sides of the fixing device body 601, and a plurality of hydraulic support legs 603 are arranged at the bottom of the extension plates 602.

[0042] Furthermore, the top of the sliding rod 615 is fixedly connected with the movable plate 607, the top of the fixing device body 601 is provided with a through slot 604, the through slot 604 is the connecting part between the sliding rod 615 and the movable plate 607, the back of the movable plate 607 is provided with a fixing block 609, the front of the fixing block 609 is provided with a fixing block notch 610, the fixing block notch 610 is snap-fittedly connected with the back of the crane base 8, the top front center of the movable plate 607 is longitudinally provided with a sliding slot 611, and the front center of the movable plate 607 is provided with a driving housing 612 A second threaded rod 620 is provided at the center of the front end and the rear end of the slide groove 611, and a sliding block 626 is sleeved on the surface of the second threaded rod 620. The sliding block 626 is slidably connected to the slide groove 611. A movable plate 619 is provided on the top of the sliding block 626. A movable plate notch 624 is provided on the back of the movable plate 19. The movable plate notch 624 is snap-fittedly connected to the front side of the crane base 8. A second drive motor 623 is fixedly connected to the inside of the drive housing 612, and the output end of the second drive motor 623 is connected to the second threaded rod 620.

[0043] Further, a shock absorbing mechanism 625 is provided at the top center of the movable plate 607. The shock absorbing mechanism 625 is a spring buffer in the prior art. Figure 5It should be noted that the spring buffer is a prior art, and its internal specific structure and working principle will not be described in detail here. The top of the shock absorbing mechanism 625 is connected to the bottom center of the crane base 8. When the crane base 8 is fixedly installed on the fixing device 6, the top of the shock absorbing mechanism 625 will be fixedly connected to the bottom of the crane base 8, thereby providing a certain degree of buffering and shock reduction to the crane body 9 to prevent the crane from tipping over. Lifting blocks 608 are provided on both sides of the top of the movable plate 607. A telescopic cylinder 616 is fixedly connected to the top of the plate 607 and located on the inner side of the lifting block 608. A fixed plate 617 is provided on the top of the telescopic cylinder 618. The top of the fixed plate 617 is connected to the crane base 8. An infrared generator 621 is provided inside the fixed plate 617. A through hole 622 is provided inside the fixed plate 617 and is on the same horizontal plane as the emission port of the infrared generator 621. An infrared receiver 618 is fixedly connected to the top of the lifting block 608, and the through hole 622 and the infrared receiver 618 are on the same horizontal plane.

[0044] Specifically, when rollover occurs, the crane base 8 and the concrete floor 3 will be offset to a certain extent. At this time, the infrared rays emitted by the infrared generator 621 will not be directly received by the infrared receiver 618, and a certain error will occur. At this time, the infrared receiver 618 will send an electrical signal to the control device, and the control device will start the telescopic cylinder 616, so that the crane base 8 will be parallel to the concrete floor 3 again through the extension and contraction of the telescopic cylinder 616. When the infrared rays emitted by the infrared generator 621 are directly received by the infrared receiver 618, the infrared receiver 618 will generate an electrical signal again, and this signal will cause the control device to close the telescopic cylinder 616.

[0045] In addition, when the wind speed is too fast, the control device will start the hydraulic support legs 603 to support the hydraulic support legs 603 on the concrete ground 3, thereby making the device more stable and preventing the occurrence of rollover.

[0046] Furthermore, a concrete floor 3 is provided on the top of the supporting steel plate 2 , and the top of the concrete floor 3 is in the same horizontal plane as the top of the sliding guide rail 403 . Support sponges 10 are provided at both ends of the bottom of the supporting plate 402 , and the bottom of the support sponge 10 is in contact with the concrete floor 3 .

[0047] A crane comprises the above-mentioned intelligent anti-rollover system for the crane and a crane body 9, wherein the top of a crane base 8 is fixedly connected to the crane body 9, and the outer top of the crane body 9 is fixedly connected to the anemometer 7.

[0048] Working principle:

[0049] For the installation of the present invention, firstly, the insertion column 505 in the skeleton device 5 is inserted into the interior of the dirt ground 1 to be installed, and then the supporting steel plate 2 is installed on the dirt ground 1. It should be noted that the installation of the supporting steel plate 2 on the dirt ground 1 is a prior art, and its specific implementation method will not be described in detail here. Then, the connecting plate 504 is installed on the supporting steel plate 2 by fixing bolts, so as to realize the installation of the skeleton device 5. It should be noted that the connection between the beam 501 on the skeleton device 5 and the main body of the fixing device 601 is an integrated connection. Through the above, the connection of the skeleton device 5 can be made more stable to prevent the skeleton device 5 from overturning due to strong winds.

[0050] Then, the support device 4 is installed on both sides of the skeleton device 5, and the sliding guide rail 403 of the support device 4 is fixedly connected to the support steel plate 2 by bolts, and then concrete is filled on the top of the support steel plate 2 to form a concrete floor 3. It should be noted that the support device 4 is connected to the skeleton device 5. Through the above connection, the connection of the entire device can be better stabilized to prevent the occurrence of rollover.

[0051] Then align the back side of the crane base 8 with the notch 610 of the fixing block, so that the bottom of the crane base 8 is located on both sides of the fixing plate 617, and then install the crane base 8 on the fixing plate 617, and then start the second drive motor 623 through the control device. The rotation of the second drive motor 623 will rotate the second threaded rod 620, so that the sliding block 626 will move along the slide groove 611, so that the movable plate 619 will move. When the notch 624 of the movable plate 619 is snap-fittedly connected with the crane base 8, the connection between the crane base 8 and the fixing device 6 will be more stable, preventing a certain degree of rollover.

[0052] Then, a crane body 9 is fixedly installed on the top of the crane base 8, wherein the installation of the crane body 9 is a prior art and will not be described in detail here.

[0053] After the installation is completed, the crane can be used. During the use of the crane, the position of the crane can be moved by moving the position of the fixing device 6, so that the objects can be better lifted. Specifically, when the position of the fixing device 6 needs to be moved, the first drive motor 614 is started through the control device. After the first drive motor 614 rotates, it will cause the screw rod 606 to rotate, thereby causing the sliding rod 615 to rotate. The rotation of the sliding rod 615 will move the fixing device 6.

[0054] Finally, it should be noted that the control device of the present invention is fixedly mounted on the concrete floor 3, and is electrically connected to the anemometer 7, infrared generator 621, infrared receiver 618, third drive motor 411, first drive motor 614, second drive motor 623, and hydraulic support leg 603 through existing technology. Because it is existing technology, its internal specific connection structure and circuit diagram will not be described in detail here.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent anti-rollover system for a crane, comprising a muddy ground (1), a skeleton device (5), a fixing device (6), and a supporting device (4), characterized in that: The skeleton device (5) comprises a main beam (501) and a horizontal connecting beam (502), the horizontal connecting beams (502) are longitudinally arranged on both sides of the main beam (501), the front and rear ends of the two horizontal connecting beams (502) are provided with connecting columns (503), the bottom of the connecting column (503) is provided with a connecting plate (504), the bottom center of the connecting plate (504) is provided with an insert column (505), and the insert column (505) is inserted into the mud ground (1 ), a supporting steel plate (2) is arranged on the top of the muddy ground (1), the supporting steel plate (2) is anchored on the muddy ground (1), the top of the supporting steel plate (2) is located at the bottom of the supporting plate (402), the supporting plate (402) and the supporting steel plate (2) are connected by fixing bolts, the top of the beam (501) is fixedly connected with a fixing device (6), and the inner tops of the two connecting columns (503) on the same side are provided with supporting devices (4).

2. The intelligent anti-rollover system for crane according to claim 1 is characterized in that: The support device (4) includes a rotating shaft (401), a support plate (402), and a sliding guide rail (403). The top of the support steel plate (2) and the two sides of the skeleton device (5) are fixedly connected with the sliding guide rail (403). The top of the sliding guide rail (403) is provided with a sliding cavity (404). The centers of the two sides of the sliding cavity (404) are provided with a first threaded rod (405). The surface of the first threaded rod (405) is sleeved with a sliding block (406). The sliding block (406) is slidably connected in the sliding cavity (404). The top of the sliding block (406) is provided with a first connecting plate (407).

3. The intelligent anti-rollover system for crane according to claim 2 is characterized in that: The two ends of the rotating shaft (401) are respectively connected to the inner top of the connecting column (503); a support plate (402) is provided on the surface of the rotating shaft (401); second connecting plates (408) are provided on both sides of the other end of the support plate (402); the front surfaces of the two second connecting plates (408) are respectively in contact with the back surfaces of different first connecting plates (407); the first connecting plate (407) and the second connecting plate (408) are connected via a pin shaft (409).

4. The intelligent anti-rollover system for crane according to claim 2 is characterized in that: A first driving inner cavity (410) is provided on the inner and outer sides of the sliding guide rail (403), and a third driving motor (411) is fixedly connected to the first driving inner cavity (410), and an output end of the third driving motor (411) is connected to the first threaded rod (405).

5. The intelligent anti-rollover system for crane according to claim 1 is characterized in that: The fixing device (6) comprises a fixing device body (601), the bottom of which is fixedly connected to the beam (501), an inner cavity is provided inside the fixing device body (601), screw rods (606) are arranged at the centers of both sides of the inner cavity of the fixing device body (601), a sliding rod (615) is sleeved on the surface of the screw rod (606), limiting rods (605) are arranged on both sides of the sliding rod (615), and both ends of the limiting rod (605) are respectively connected to both sides of the inner cavity of the fixing device body (601), and extension plates (602) are extended from the tops of both sides of the fixing device body (601), and a plurality of hydraulic support legs (603) are arranged at the bottom of the extension plates (602).

6. The intelligent anti-rollover system for crane according to claim 5 is characterized by: The top of the sliding rod (615) is fixedly connected with a movable plate (607), the top of the fixing device body (601) is provided with a through slot (604), the through slot (604) is the connecting part between the sliding rod (615) and the movable plate (607), the back of the movable plate (607) is provided with a fixing block (609), the front of the fixing block (609) is provided with a fixing block notch (610), the fixing block notch (610) is snap-fittedly connected with the back of the crane base (8), the top front end center of the movable plate (607) is provided with a sliding slot (611) longitudinally, the front center of the movable plate (607) is provided with a driving housing (612), A second threaded rod (620) is arranged at the center of the front end and the rear end of the slide groove (611); a sliding block (626) is sleeved on the surface of the second threaded rod (620); the sliding block (626) is slidably connected to the slide groove (611); a movable plate (619) is arranged on the top of the sliding block (626); a movable plate notch (624) is provided on the back of the movable plate (619); the movable plate notch (624) is snap-fittedly connected to the front of the crane base (8); a second drive motor (623) is fixedly connected to the inside of the drive housing (612); and the output end of the second drive motor (623) is connected to the second threaded rod (620).

7. The intelligent anti-rollover system for crane according to claim 5 is characterized by: A shock absorbing mechanism (625) is arranged at the top center of the movable plate (607), and the top of the shock absorbing mechanism (625) is connected to the bottom of the crane base (8). Lifting blocks (608) are arranged on both sides of the top of the movable plate (607). A telescopic cylinder (616) is fixedly connected to the top of the movable plate (607) and located on the inner side of the lifting blocks (608). A fixed plate (617) is arranged on the top of the telescopic cylinder (618). The top of the fixed plate (617) is connected to the crane base (8), an infrared generator (621) is arranged inside the fixed plate (617), a through hole (622) is opened inside the fixed plate (617) and is on the same horizontal plane as the emission port of the infrared generator (621), and an infrared receiver (618) is fixedly connected to the top of the lifting block (608), and the through hole (622) and the infrared receiver (618) are on the same horizontal plane.

8. An intelligent anti-rollover system for crane according to any one of claims 1 and 2, characterized in that: A concrete floor (3) is arranged on the top of the supporting steel plate (2), and the top of the concrete floor (3) is in the same horizontal plane as the top of the sliding guide rail (403). Support sponges (10) are arranged at both ends of the bottom of the supporting plate (402), and the bottom of the support sponge (10) is in contact with the concrete floor (3).

9. A crane, characterized in that: It comprises an intelligent anti-rollover system for a crane and a crane body (9) as described in any one of claims 1 to 9, wherein the top of the crane base (8) is fixedly connected to the crane body (9), and the outer top of the crane body (9) is fixedly connected to an anemometer (7).

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