Overturn-preventing structure of deck crane

Abstract

The invention discloses an anti-overturning structure of a deck crane, which relates to the technical field of cranes and comprises a base, a longitudinal moving seat, a longitudinal moving groove, a first oil cylinder, an adjustable hanging bracket, an anti-shaking mechanism, a hanging plate, a hanging hook, a first pulley, a second pulley, a hanging rope, a winch and a balancing weight. The lifting device is reasonable and simple in structure, low in production cost and convenient to install, the first connecting plate is driven to be close to or away from the second connecting plate through telescopic movement of the third oil cylinder, the extending distance of the lifting plate is adjusted, and therefore the phenomenon of overturning caused by the too long extending distance is avoided, and the safety during lifting is guaranteed; the starting motor drives the transmission gear to rotate through the transmission shaft, the telescopic pipe moves downwards and extends out through rotation of the transmission gear, and the positioning clamping block is clamped through the positioning clamping groove through downward movement of the telescopic pipe, so that it is guaranteed that the hanging plate and the bridge section cannot shake during assembly, and the operation performance during assembly and movement is improved; and therefore, the assembly efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to an anti-overturning structure of a bridge deck crane. Background Art

[0002] Crane generally refers to a crane, which is a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range.

[0003] During the on-site construction of a bridge, a bridge crane is an indispensable large-scale lifting equipment that can lift bridge sections one by one and place them in designated locations for assembly. During the bridge construction process, the bridge crane needs to move along the longitudinal direction of the bridge to accommodate the lifting construction of different bridge sections.

[0004] Existing bridge cranes have the following disadvantages: 1) Existing bridge cranes cannot be adjusted according to needs; 2) Most of the existing bridge cranes are moved by rails, which often pose a risk of overturning due to various factors during the movement process. The existing bridge cranes lack corresponding anti-overturning mechanisms. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-overturning structure for a bridge crane in order to solve the above-mentioned problem, thereby solving the problem that the existing bridge crane cannot be adjusted according to needs, thus easily causing overturning, and also facilitates the assembly of the bridge.

[0006] In order to solve the above problems, the present invention provides a technical solution: an anti-overturning structure of a bridge crane, comprising a base, a longitudinal shift seat, a longitudinal shift slot, a first oil cylinder, an adjustable hanger, an anti-sway mechanism, a hanging plate, a hook, a first pulley, a second pulley, a hanging rope, a winch and a counterweight; a counterweight is fixedly connected to the upper left side of the base, and a longitudinal longitudinal shift slot is provided on the upper right side of the base; the inner center of the longitudinal shift slot is movably connected to the longitudinal shift seat, and the front and rear positions of the longitudinal shift slot are fixedly connected to the first oil cylinder, and the inner piston rod ends of the first oil cylinder are respectively fixedly connected to the front and rear faces of the longitudinal shift seat; the adjustable hanger is fixedly connected to On the longitudinal displacement seat, the right side of the adjustable hanger is fixedly connected with an anti-sway mechanism; there are two pulleys, and the two pulleys are movably connected to the front and rear interior of the lower right side of the adjustable hanger; there are two pulleys, and the two pulleys are movably connected to the front and rear interior of the upper left side of the adjustable hanger; the winch is fixedly connected to the upper left side of the longitudinal displacement seat, and two lifting ropes are arranged inside the winch, and the right side of the lifting rope is fixedly connected to the front and rear center of the top of the hanger plate through the corresponding pulleys 2 and 1, and several hooks are fixedly connected on both sides of the bottom surface of the hanger plate; the right side of the lifting rope is also located inside the lower side of the anti-sway mechanism.

[0007] Preferably, the specific structure of the adjustable hanger includes support one, cylinder two, support two, connecting rod one, cylinder three, connecting plate one, connecting rod two, connecting plate two and a fixed shaft; the support one is fixedly connected to the upper left side of the longitudinal displacement seat; the left side of the cylinder two is hinged to the support one; the support two is fixedly connected to the upper right side of the longitudinal displacement seat, and the upper side of the support two is movably connected to the lower side of the connecting plate two; there are two connecting rods one, and the left sides of the two connecting rods one are movably connected to the front and rear positions of the lower side of the connecting plate two, and the front and rear interiors of the upper side of the connecting plate two are movably connected with pulley two; there are two connecting rods two, and the left sides of the two connecting rods two are respectively The front and rear positions on the upper side of the connecting plate 2 are movably connected; the front and rear positions on the lower side of the connecting plate are respectively movably connected to the right side of the corresponding connecting rod 1, and the front and rear positions on the lower side of the connecting plate are respectively movably connected to the right side of the corresponding connecting rod 2. The front and rear interiors of the lower side of the connecting plate are movably connected with pulley 1, and the right side of the connecting plate 1 is fixedly connected with an anti-sway mechanism; the fixed shaft is fixedly connected to the center of the side surface of the connecting plate 2, and the outside of the fixed shaft is movably connected to the inside of the right side piston rod end of the oil cylinder 2; the left side interior of the oil cylinder 3 is also movably connected to the outside of the fixed shaft, and the right side piston rod end of the oil cylinder 3 is movably connected to the right side of the connecting rod 1.

[0008] Preferably, the length of the connecting rod 1 is equal to the length of the connecting rod 2, and the connecting rod 1 and the connecting rod 2 are parallel to each other.

[0009] Preferably, the specific structure of the anti-sway mechanism includes a guide hole sleeve, a guide hole, a telescopic tube, a long slot, a rack, a motor, a connecting gear 1, a connecting gear 2, a connecting shaft, a transmission gear, a transmission shaft, a connecting slot, a guide hole block, a positioning slot, a positioning block and a gear box; the guide hole sleeves are two, and the two guide hole sleeves are respectively fixedly connected to the front and rear positions of the right side of the adjustable hanger, and the two guide hole sleeves are provided with vertical guide holes inside, and the lower left side of the guide hole is provided with a vertical connecting slot, and the inner side of the connecting slot is movably connected to the right side of the corresponding pulley 1; There are two telescopic tubes, and the two telescopic tubes are vertically movably connected to the corresponding guide holes. A vertical long groove is opened on the left side of the two telescopic tubes, and the inner side of the long groove is also movably connected to the right side of the corresponding pulley. Vertical racks are fixedly connected on the opposite sides of the outside of the two telescopic tubes. Positioning grooves are provided inside the lower openings of the two telescopic tubes, and the upper sides of the positioning grooves are fixedly connected to guide hole sleeves, and the insides of the guide hole blocks are movably connected to the corresponding outsides of the lifting ropes; the outside of the gear box is fixedly connected to the inside of the right side of the adjustable hanger, and the front and rear positions of the right side of the gear box are fixedly connected to the left side of the corresponding guide hole sleeve, and the front and rear insides of the gear box are movably connected to the transmission shaft, and The left side of the transmission shaft is fixedly connected with a connecting gear 1, and the right side of the transmission shaft is fixedly connected with a transmission gear, and the transmission gears are respectively connected to the corresponding racks; the connecting shaft is longitudinally arranged and movably connected inside the center of the gear box, the front and rear ends of the connecting shaft are fixedly connected with a connecting gear 2, and the connecting gear 2 is respectively connected to the corresponding connecting gear 1; the motor is fixedly connected to the outside of the left side of the gear box, and the right side output shaft of the motor is fixedly connected to the center of the left side of one of the transmission shafts; there are two positioning blocks, and the central insides of the two positioning blocks are respectively fixedly connected to the outside of the corresponding ends of the suspension ropes, and the bottoms of the two positioning blocks are respectively fixedly connected to the central front and rear positions on the hanging plate.

[0010] Preferably, the guide hole is a rectangular guide hole and matches the exterior of the telescopic tube.

[0011] Preferably, the motor is a reduction motor with a brake.

[0012] Preferably, the upper outer portion of the positioning block is in a cone shape.

[0013] Preferably, the longitudinal shift groove is T-shaped and matches the exterior of the longitudinal shift seat.

[0014] The beneficial effects of the present invention are as follows: (1) The present invention has a reasonable and simple structure, low production cost and easy installation. The connecting plate 1 is driven to approach or move away from the connecting plate 2 by the telescopic movement of the oil cylinder 3, thereby adjusting the extension distance of the hanging plate, thereby avoiding the overturning phenomenon caused by the extension distance being too long, thereby ensuring the safety during lifting.

[0015] (2) In the present invention, the starting motor drives the transmission gear to rotate through the transmission shaft, and the rotation of the transmission gear causes the telescopic tube to move downward and extend. The downward movement of the telescopic tube clamps the positioning block through the positioning slot, thereby ensuring that the hanging plate and the bridge section will not shake during assembly, thereby improving the operational performance during assembly and movement, and further improving the efficiency of assembly.

[0016] (3) The oil cylinder 2 provided in the present invention can adjust the inclination of the connecting plate 2 through its telescopic movement. In addition, the parallel four-bar linkage composed of the connecting plate 2, the connecting rod 1, the connecting plate 1 and the connecting rod 2 ensures that when the connecting plate 2 is tilted, the connecting plate 2 will also drive the anti-sway mechanism to tilt, which satisfies the requirement that the bridge section can be corrected when it is tilted, thereby improving the quality after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of an adjustable hanger.

[0019] Figure 3 It is a structural diagram of the anti-sway mechanism.

[0020] Figure 4 for Figure 3 Enlarged view of position A in the middle.

[0021] Figure 5 for Figure 3 Partial cross-sectional view from above.

[0022] Figure 6 for Figure 3 Side view of.

[0023] 1-base; 2-longitudinal shift seat; 3-longitudinal shift slot; 4-oil cylinder 1; 5-adjustable hanger; 6-anti-sway mechanism; 7-hanging plate; 8-hook; 9-pulley 1; 10-pulley 2; 11-hanging rope; 12-winch; 13-counterweight; 51-support 1; 52-oil cylinder 2; 53-support 2; 54-connecting rod 1; 55-oil cylinder 3; 56-connecting plate 1; 57-connecting rod 2; 58- Connecting plate 2; 59-fixed shaft; 61-guide hole sleeve; 62-guide hole; 63-telescopic tube; 64-long slot; 65-rack; 66-motor; 67-connecting gear 1; 68-connecting gear 2; 69-connecting shaft; 610-transmission gear; 611-transmission shaft; 612-connecting slot; 613-guide hole block; 614-positioning slot; 615-positioning block; 616-gear box. DETAILED DESCRIPTION

[0024] like Figure 1As shown, this specific embodiment adopts the following technical scheme: an anti-overturning structure of a bridge crane, including a base 1, a longitudinal shift seat 2, a longitudinal shift slot 3, an oil cylinder 4, an adjustable hanger 5, an anti-sway mechanism 6, a hanging plate 7, a hook 8, a pulley 9, a pulley 10, a hanging rope 11, a winch 12 and a counterweight 13; the base 1 is fixedly connected to a counterweight 13 on the upper left side, and a longitudinal longitudinal shift slot 3 is provided on the upper right side of the base 1; the longitudinal shift slot 3 is movably connected to the longitudinal shift seat 2 in the center, and the longitudinal shift slot 3 is fixedly connected to the oil cylinder 4 at the front and rear positions, and the inner piston rod ends of the oil cylinder 4 are respectively fixedly connected to the front and rear faces of the longitudinal shift seat 2; the adjustable hanger 5 is fixedly connected to the longitudinal shift seat 2 On the seat 2, the right side of the adjustable hanger 5 is fixedly connected with an anti-sway mechanism 6; there are two pulleys 9, and the two pulleys 9 are movably connected to the front and rear interior of the lower right side of the adjustable hanger 5; there are two pulleys 10, and the two pulleys 10 are movably connected to the front and rear interior of the upper left side of the adjustable hanger 5; the winch 12 is fixedly connected to the upper left side of the longitudinal displacement seat 2, and two lifting ropes 11 are arranged inside the winch 12, and the right side of the lifting rope 11 is fixedly connected to the front and rear center of the top of the hanging plate 7 through the corresponding pulleys 10 and pulleys 19, and several hooks 8 are fixedly connected on both sides of the bottom surface of the hanging plate 7; the right side of the lifting rope 11 is also located inside the lower side of the anti-sway mechanism 6.

[0025] like Figure 2 As shown, the specific structure of the adjustable hanger 5 includes a support 1 51, a cylinder 2 52, a support 2 53, a connecting rod 1 54, a cylinder 3 55, a connecting plate 1 56, a connecting rod 2 57, a connecting plate 2 58 and a fixed shaft 59; the support 1 51 is fixedly connected to the upper left side of the longitudinal displacement seat 2; the left side of the cylinder 2 52 is hinged to the support 1 51; the support 2 53 is fixedly connected to the upper right side of the longitudinal displacement seat 2, and the upper side of the support 2 53 is movably connected to the lower side of the connecting plate 2 58; there are two connecting rods 1 54, and the left sides of the two connecting rods 1 54 are movably connected to the front and rear positions of the lower side of the connecting plate 2 58, and the front and rear internal parts of the upper side of the connecting plate 2 58 are movably connected with pulleys 10; there are two connecting rods 2 57, and the two connecting rods 57 are movably connected to the lower side of the connecting plate 2 58. The left sides of the second 57 are movably connected to the front and rear positions of the upper side of the connecting plate 2 58; the front and rear positions of the lower side of the connecting plate 1 56 are movably connected to the right side of the corresponding connecting rod 1 54, and the front and rear positions of the lower side of the connecting plate 1 56 are movably connected to the right side of the corresponding connecting rod 2 57, the front and rear interiors of the lower side of the connecting plate 1 56 are movably connected with a pulley 9, and the right side of the connecting plate 1 56 is fixedly connected with an anti-sway mechanism 6; the fixed shaft 59 is fixedly connected to the center of the side of the connecting plate 2 58, and the outside of the fixed shaft 59 is movably connected to the inside of the right side piston rod end of the cylinder 2 52; the inside of the left side of the cylinder 3 55 is also movably connected to the outside of the fixed shaft 59, and the right side piston rod end of the cylinder 3 55 is movably connected to the right side of the connecting rod 1 54.

[0026] The length of the connecting rod 1 54 is equal to the length of the connecting rod 2 57 , and the connecting rod 1 54 and the connecting rod 2 57 are parallel to each other.

[0027] like Figures 3 to 6 As shown, the specific structure of the anti-sway mechanism 6 includes a guide hole sleeve 61, a guide hole 62, a telescopic tube 63, a long slot 64, a rack 65, a motor 66, a connecting gear 1 67, a connecting gear 2 68, a connecting shaft 69, a transmission gear 610, a transmission shaft 611, a connecting slot 612, a guide hole block 613, a positioning slot 614, a positioning block 615 and a gear box 616; the guide hole sleeves 61 are two, and the two guide hole sleeves 61 are respectively fixedly connected to the front and rear positions of the right side of the adjustable hanger 5, and the two guide hole sleeves 61 are provided with vertical guide holes 62 inside, and the lower left side of the guide holes 62 is provided with vertical connecting slots 612, and the inner side of the connecting slot 612 is movably connected to the right side of the corresponding pulley 9; There are two telescopic tubes 63, and the two telescopic tubes 63 are respectively and vertically movably connected to the corresponding guide holes 62. A vertical long groove 64 is opened on the left side of the two telescopic tubes 63, and the inner side of the long groove 64 is also movably connected to the right external side of the corresponding pulley 9. A vertical rack 65 is fixedly connected on the opposite sides of the outside of the two telescopic tubes 63. A positioning groove 614 is provided inside the lower opening of the two telescopic tubes 63, and the upper side of the positioning groove 614 is fixedly connected to the guide hole sleeve 61, and the inside of the guide hole block 613 is respectively and movably connected to the outside of the corresponding suspension rope 11; the gear box 616 is externally fixedly connected to the right internal side of the adjustable hanger 5, and the front and rear positions of the right side of the gear box 616 are respectively fixedly connected to the left side of the corresponding guide hole sleeve 61, and the front and rear internal parts of the gear box 616 are movably connected to the transmission shaft 611, and the transmission shaft 611 is fixedly connected to the left side of the corresponding guide hole sleeve 61. The left side of the shaft 611 is fixedly connected with a connecting gear 1 67, and the right side of the transmission shaft 611 is fixedly connected with a transmission gear 610, and the transmission gear 610 is respectively connected to the corresponding rack 65; the connecting shaft 69 is longitudinally arranged and movably connected to the central interior of the gear box 616, and the front and rear ends of the connecting shaft 69 are fixedly connected with a connecting gear 2 68, and the connecting gear 2 68 is respectively connected to the corresponding connecting gear 1 67; the motor 66 is fixedly connected to the left outside of the gear box 616, and the right side output shaft of the motor 66 is fixedly connected to the left center of one of the transmission shafts 611; there are two positioning blocks 615, and the central interiors of the two positioning blocks 615 are respectively fixedly connected to the outside of the ends of the corresponding suspension ropes 11, and the bottoms of the two positioning blocks 615 are respectively fixedly connected to the central front and rear positions on the hanging plate 7.

[0028] Among them, the guide hole 62 is a rectangular guide hole and matches the outside of the telescopic tube 63; the motor 66 is a reduction motor with a brake, thereby improving safety during use; the upper outer side of the positioning block 615 is conical in shape; the longitudinal movement groove 3 is T-shaped and matches the outside of the longitudinal movement seat 2.

[0029] The use status of the present invention is as follows: the present invention has a reasonable and simple structure, low production cost and convenient installation. When in use, first adjust the extension distance of the hanging plate 7 according to the size of the bridge section. When adjusting specifically, first drive the connecting plate 1 56 to approach or move away from the connecting plate 2 58 through the telescopic movement of the oil cylinder 3 55, thereby adjusting the extension distance of the hanging plate 7, thereby avoiding the phenomenon of overturning caused by the extension distance being too long, thereby ensuring the safety during lifting. In addition, increasing the weight of the counterweight 13 can further avoid the phenomenon of overturning. After adjustment, start the winch 12 to loosen the lifting rope 11 to move the hanging plate 7 downward as a whole, thereby facilitating the fixing of the bridge section under the hanging plate 7, and then start the winch 12 to tighten the lifting rope 11 to lift the bridge section to the installation position of the bridge end face, and then start the motor 66 through the transmission shaft 611 drives the transmission gear 610 to rotate, and the rotation of the transmission gear 610 causes the telescopic tube 63 to move downward and extend, and the downward movement of the telescopic tube 63 clamps the positioning block 615 through the positioning slot 614, thereby ensuring that the hanging plate 7 and the bridge section will not shake during assembly, thereby improving the operational performance during assembly and movement, and further improving the efficiency of assembly. The oil cylinder 2 52 arranged here can adjust the inclination of the connecting plate 2 58 through its telescopic movement. In addition, the parallel four-bar linkage composed of the connecting plate 2 58, the connecting rod 1 54, the connecting plate 1 56 and the connecting rod 2 57 ensures that when the connecting plate 2 58 is tilted, the connecting plate 2 58 will also drive the anti-sway mechanism 6 to tilt, thereby satisfying the requirement that the bridge section can be corrected when it is tilted, thereby improving the quality after assembly.

[0030] The control method in the present invention is to start manually or control through existing automation technology. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0031] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply 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 invention.

[0032] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0033] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. An anti-overturning structure for a bridge crane, characterized in that: It comprises a base (1), a longitudinal shift seat (2), a longitudinal shift slot (3), a first oil cylinder (4), an adjustable hanger (5), an anti-sway mechanism (6), a hanging plate (7), a hook (8), a first pulley (9), a second pulley (10), a lifting rope (11), a winch (12) and a counterweight (13); A counterweight block (13) is fixedly connected to the upper left side of the base (1), and a longitudinal longitudinal displacement groove (3) is provided on the upper right side of the base (1); The longitudinal displacement groove (3) is movably connected to the longitudinal displacement seat (2) at its inner center, and the front and rear positions of the longitudinal displacement groove (3) are fixedly connected to a cylinder 1 (4), and the inner piston rod ends of the cylinder 1 (4) are respectively fixedly connected to the front and rear sides of the longitudinal displacement seat (2); The adjustable hanger (5) is fixedly connected to the longitudinal displacement seat (2), and the right side of the adjustable hanger (5) is fixedly connected to an anti-sway mechanism (6); There are two pulleys (9), and the two pulleys (9) are movably connected to the front and rear inner parts of the lower right side of the adjustable hanger (5); There are two pulleys (10), and the two pulleys (10) are movably connected to the front and rear inner parts of the upper left side of the adjustable hanger (5); The hoist (12) is fixedly connected to the upper left side of the longitudinal displacement seat (2), and two suspension ropes (11) are arranged inside the hoist (12), and the right side of the suspension rope (11) is fixedly connected to the front and rear center of the top of the suspension plate (7) through the corresponding pulley 2 (10) and pulley 1 (9), and a plurality of suspension hooks (8) are fixedly connected to both sides of the bottom surface of the suspension plate (7); The right side of the suspension rope (11) is also located inside the lower side of the anti-sway mechanism (6).

2. The anti-overturning structure of the bridge crane according to claim 1, characterized in that: The specific structure of the adjustable hanger (5) includes a support 1 (51), a cylinder 2 (52), a support 2 (53), a connecting rod 1 (54), a cylinder 3 (55), a connecting plate 1 (56), a connecting rod 2 (57), a connecting plate 2 (58) and a fixed shaft (59); The support seat 1 (51) is fixedly connected to the upper left side of the longitudinal displacement seat (2); The left side of the oil cylinder 2 (52) is hinged to the support 1 (51); The second support (53) is fixedly connected to the upper right side of the longitudinal displacement seat (2), and the upper side of the second support (53) is movably connected to the lower side of the second connecting plate (58); There are two connecting rods (54), the left sides of the two connecting rods (54) are movably connected to the front and rear positions of the lower side of the connecting plate (58), and the front and rear inner parts of the upper side of the connecting plate (58) are movably connected to the pulley (10); There are two connecting rods (57), and the left sides of the two connecting rods (57) are movably connected to the front and rear positions of the upper side of the connecting plate (58); The front and rear positions of the lower side of the connecting plate 1 (56) are respectively movably connected to the right side of the corresponding connecting rod 1 (54), and the front and rear positions of the lower side of the connecting plate 1 (56) are respectively movably connected to the right side of the corresponding connecting rod 2 (57). The front and rear interiors of the lower side of the connecting plate 1 (56) are both movably connected to a pulley 1 (9), and the right side of the connecting plate 1 (56) is fixedly connected to an anti-sway mechanism (6); The fixed shaft (59) is fixedly connected to the center of the side of the second connecting plate (58), and the outside of the fixed shaft (59) is movably connected to the inside of the end of the right piston rod of the second oil cylinder (52); The left interior of the oil cylinder three (55) is also movably connected to the outside of the fixed shaft (59), and the right piston rod end of the oil cylinder three (55) is movably connected to the right side of the connecting rod one (54).

3. The anti-overturning structure of the bridge crane according to claim 2 is characterized in that: The length of the connecting rod 1 (54) is equal to the length of the connecting rod 2 (57), and the connecting rod 1 (54) and the connecting rod 2 (57) are parallel to each other.

4. The anti-overturning structure of the bridge crane according to claim 1, characterized in that: The specific structure of the anti-sway mechanism (6) includes a guide hole sleeve (61), a guide hole (62), a telescopic tube (63), a long slot (64), a rack (65), a motor (66), a connecting gear 1 (67), a connecting gear 2 (68), a connecting shaft (69), a transmission gear (610), a transmission shaft (611), a connecting slot (612), a guide hole block (613), a positioning slot (614), a positioning block (615) and a gear box (616); There are two guide hole sleeves (61), and the two guide hole sleeves (61) are respectively fixedly connected to the front and rear positions of the right side of the adjustable hanger (5), and the two guide hole sleeves (61) are each provided with a vertical guide hole (62) inside, and the lower left side of the guide hole (62) is provided with a vertical connection groove (612), and the inner side of the connection groove (612) is movably connected to the right side of the corresponding pulley 1 (9); There are two telescopic tubes (63), and the two telescopic tubes (63) are respectively vertically movably connected to the inside of the corresponding guide hole (62). A vertical long groove (64) is opened on the left side of the two telescopic tubes (63), and the inner side of the long groove (64) is also movably connected to the right side of the corresponding pulley (9). A vertical rack (65) is fixedly connected on the opposite sides of the outside of the two telescopic tubes (63). A positioning groove (614) is provided inside the lower opening of the two telescopic tubes (63), and the upper side of the positioning groove (614) is fixedly connected to the guide hole sleeve (61), and the inside of the guide hole block (613) is respectively movably connected to the outside of the corresponding suspension rope (11); The gear box (616) is fixedly connected to the inside of the right side of the adjustable hanger (5) on the outside, and the front and rear positions of the right side of the gear box (616) are respectively fixedly connected to the left side of the corresponding guide hole sleeve (61), and the front and rear interiors of the gear box (616) are movably connected to the transmission shaft (611), and the left side of the transmission shaft (611) is fixedly connected to the connecting gear 1 (67), and the right side of the transmission shaft (611) is fixedly connected to the transmission gear (610), and the transmission gear (610) is respectively connected to the corresponding rack (65); The connecting shaft (69) is longitudinally arranged and movably connected to the central interior of the gear box (616); the front and rear ends of the connecting shaft (69) are fixedly connected to connecting gear 2 (68), and the connecting gear 2 (68) is respectively connected to the corresponding connecting gear 1 (67); The motor (66) is fixedly connected to the left exterior of the gear box (616), and the right output shaft of the motor (66) is fixedly connected to the left center of one of the transmission shafts (611); There are two positioning blocks (615), the central interiors of the two positioning blocks (615) are respectively fixedly connected to the exteriors of the ends of the corresponding hanging ropes (11), and the bottoms of the two positioning blocks (615) are respectively fixedly connected to the central front and rear positions on the hanging plate (7).

5. The anti-overturning structure of the bridge crane according to claim 4, characterized in that: The guide hole (62) is a rectangular guide hole and matches the outside of the telescopic tube (63).

6. The anti-overturning structure of the bridge crane according to claim 4, characterized in that: The motor (66) is a reduction motor with a brake.

7. The anti-overturning structure of a bridge crane according to claim 4, characterized in that: The upper outer side of the positioning block (615) is in a cone shape.

8. The anti-overturning structure of a bridge crane according to claim 1, characterized in that: The longitudinal displacement groove (3) is T-shaped and matches the exterior of the longitudinal displacement seat (2).

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