Overturn-preventing mechanism of deck crane

Abstract

The utility model relates to an anti-overturning mechanism, belongs to the technical field of cranes, and particularly relates to an anti-overturning mechanism of a bridge deck crane, which comprises a base, a sliding rail is fixedly connected onto the base, and an electric sliding table is arranged on the sliding rail; in the utility model, when the device has the hidden danger of overturning, the motor is started, the output shaft of the motor drives the bidirectional screw to rotate, and the threaded plate is in threaded connection with the bidirectional screw, so that the threaded plate moves back to back along with the rotation of the bidirectional screw, drives the connecting plate and the connecting sleeve to move outwards, pushes the third supporting plate to move outwards and protrudes out of the fixed box; when a third supporting plate moves to the edge of one side of a sliding groove, due to the fact that a rotating column is rotationally connected into a connecting sleeve, the third supporting plate rotates along with the weight of the third supporting plate and is embedded into the ground, an included angle is formed between the third supporting plate and the ground, a certain supporting effect on the device is achieved, the device is reinforced in the longitudinal direction, and the hidden danger of overturning of the device is reduced; and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically an anti-tipping mechanism for a bridge crane. Background Technology

[0002] During the on-site construction of the bridge, bridge cranes are essential large-scale lifting equipment that can lift bridge sections one by one and place them in designated locations for assembly.

[0003] Chinese patent CN221027283U discloses an anti-tipping mechanism for a bridge deck crane, including a base on which a detachable stabilizing mechanism and connecting components are installed. The detachable stabilizing mechanism includes a slide rail, an electric slide platform, a fixed plate, a connecting seat, a first fixing bolt, an L-shaped right-angle bracket, a second fixing bolt, and a support rod. The two electric slide platforms are respectively fixedly connected to the bottom ends of the fixed plate. This patent, by installing the detachable stabilizing mechanism, facilitates the replacement of parts after long-term use, greatly improving the service life and working efficiency of the bridge deck crane. The installation of the connecting components, including the fixed seat, arc-shaped connecting block, connecting rod, and connecting plate, enhances the stability of the bridge deck crane, thereby reducing the risk of overturning due to derailment and, to a certain extent, protecting the safety of surrounding facilities and personnel.

[0004] In the above technical solution, the device is reinforced horizontally by an L-shaped right-angle frame, a connecting rod, and an X-shaped fixing frame to reduce the risk of overturning due to derailment. However, the overall height of the device is relatively high, and there are no longitudinal reinforcement components, which makes the risk of overturning still relatively high, resulting in low practicality of the device.

[0005] Based on this, the present invention proposes an anti-tipping mechanism for a bridge deck crane. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes an anti-tipping mechanism for a bridge deck crane. This mechanism provides longitudinal support to the device via a support plate three. When a potential tipping hazard arises, the motor is activated, causing the support plate three to move out of the fixing box. By having the support plate three contact the ground, it provides longitudinal support to the device, thereby reducing the risk of tipping.

[0007] The technical solution to achieve the purpose of this utility model is: an anti-tipping mechanism for a bridge deck crane, including a base, a slide rail fixedly connected to the base, an electric slide table provided on the slide rail, four fixed plates provided on the electric slide table, and a worktable fixedly connected to the four fixed plates, and further including;

[0008] A fixed box, wherein two connecting plates are slidably connected inside the fixed box, two connecting sleeves are fixedly connected to the two connecting plates respectively, two rotating columns are rotatably connected to the two connecting sleeves respectively, and two support plates are fixedly connected to the two rotating columns respectively.

[0009] Preferably, a motor is fixedly connected to the fixed box, and a bidirectional screw is fixedly connected to the output shaft of the motor, the bidirectional screw being rotatably connected inside the fixed box.

[0010] Preferably, the two ends of the bidirectional screw are respectively threaded to two threaded plates, the two threaded plates are respectively fixedly connected to two connecting plates, and two sliding grooves are opened in the fixing box, with the two ends of the two rotating columns respectively located in the two sliding grooves.

[0011] Preferably, a plurality of support plates are fixedly connected to the electric slide, and the plurality of support plates are connected to the fixed plate by bolts.

[0012] Preferably, four support plates are fixedly connected to the four fixed plates respectively, and four fixed seats are fixedly connected to the electric slide. The four support plates are rotatably connected to the four fixed seats respectively.

[0013] Preferably, two support rods are fixedly connected to the four fixed plates.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] In this invention, when the device is at risk of tipping over, the motor is started, and its output shaft drives the bidirectional screw to rotate. Since the threaded plate is threadedly connected to the bidirectional screw, the threaded plate moves backward with the rotation of the bidirectional screw, causing the connecting plate and connecting sleeve to move outward, pushing the support plate three to move outward and protrude from the fixing box. When the support plate three moves to one edge of the slide groove, since the rotating column is rotatably connected inside the connecting sleeve, the support plate three rotates with its own weight and embeds into the ground. The support plate three forms an angle with the ground, which provides a certain support effect for the device, strengthens the longitudinal direction of the device, reduces the risk of tipping over, and improves the practicality of the device. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3This is a three-dimensional structural diagram of the bidirectional screw, threaded plate, and support plate in this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Slide rail; 3. Electric slide table; 4. Fixing plate; 5. Worktable; 6. Support plate one; 7. Support plate two; 8. Fixing seat; 9. Support rod; 10. Fixing box; 11. Motor; 12. Double screw; 13. Threaded plate; 14. Connecting plate; 15. Slide groove; 16. Rotating column; 17. Connecting sleeve; 18. Support plate three. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved anti-tipping mechanism for a bridge crane. The technical solution of this utility model is as follows:

[0024] like Figures 1-3 As shown, an anti-tipping mechanism for a bridge deck crane includes a base 1, a slide rail 2 fixedly connected to the base 1, an electric slide table 3 provided on the slide rail 2, four fixed plates 4 provided on the electric slide table 3, and workbenches 5 fixedly connected to the four fixed plates 4. The workbenches 5 are vertically distributed on the fixed plates 4, and also includes;

[0025] The fixed box 10 has two sliding connecting plates 14 inside. Two connecting sleeves 17 are fixedly connected to the two connecting plates 14 respectively. Two rotating columns 16 are rotatably connected to the two connecting sleeves 17 respectively. Two support plates 18 are fixedly connected to the two rotating columns 16 respectively. When there is a risk of overturning, the motor 11 is started, which causes the support plates 18 to move out of the fixed box 10. The support plates 18 contact the ground, which provides longitudinal support for the device, thereby reducing the risk of overturning.

[0026] Furthermore, such as Figures 1-3 As shown, a motor 11 is fixed to the fixed box 10 by bolts. A double-headed screw 12 is fixed to the output shaft of the motor 11 by a coupling. The double-headed screw 12 is rotatably connected to the fixed box 10. The motor 11 drives the double-headed screw 12 to rotate, which causes the support plate 3 18 to move.

[0027] Furthermore, such as Figure 2 and Figure 3As shown, the two ends of the bidirectional screw 12 are respectively threaded to two threaded plates 13, and the two threaded plates 13 are respectively fixedly connected to two connecting plates 14. Two sliding grooves 15 are opened in the fixed box 10, and the two ends of the two rotating columns 16 are respectively located in the two sliding grooves 15.

[0028] Furthermore, such as Figure 1 and Figure 2 As shown, multiple support plates 6 are fixedly connected to the electric slide table 3. The multiple support plates 6 are connected to the fixed plate 4 by bolts. The cross-section of the support plate 6 is "L" shaped, and two adjacent support plates 6 are symmetrical about the fixed plate 4.

[0029] Furthermore, such as Figure 1 As shown, four support plates 7 are fixedly connected to the four fixed plates 4 respectively, and four fixed seats 8 are fixedly connected to the electric slide table 3. The four support plates 7 are rotatably connected to the four fixed seats 8 respectively, and the cross section of the fixed seat 8 is U-shaped.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, two support rods 9 are fixedly connected to the four fixed plates 4. The cross-section of the support rods 9 is "X" shaped. The two support rods 9 are symmetrical about the worktable 5. The support plate 1 6, support plate 2 7 and support rods 9 reinforce the horizontal direction of the device.

[0031] The specific working method is as follows: When the device is at risk of tipping over, the motor 11 is started, and its output shaft drives the bidirectional screw 12 to rotate. Since the threaded plate 13 is threadedly connected to the bidirectional screw 12, the threaded plate 13 moves backward with the rotation of the bidirectional screw 12, driving the connecting plate 14 and the connecting sleeve 17 to move outward, pushing the support plate 18 to move outward and protrude from the fixing box 10. When the support plate 18 moves to one edge of the slide groove 15, since the rotating column 16 is rotatably connected to the connecting sleeve 17, the support plate 18 rotates with its own weight and embeds into the ground. The support plate 18 forms an angle with the ground, which provides a certain support effect for the device, strengthens the longitudinal direction of the device, reduces the risk of tipping over, and improves the practicality of the device.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An anti-tipping mechanism for a bridge deck crane, comprising a base (1), wherein a slide rail (2) is fixedly connected to the base (1), and an electric slide table (3) is provided on the slide rail (2), characterized in that: The electric slide table (3) is provided with four fixed plates (4), and a worktable (5) is fixedly connected to the four fixed plates (4), and also includes; A fixed box (10) is provided, in which two connecting plates (14) are slidably connected. Two connecting sleeves (17) are fixedly connected to the two connecting plates (14). Two rotating columns (16) are rotatably connected to the two connecting sleeves (17). Two support plates (18) are fixedly connected to the two rotating columns (16).

2. The anti-tipping mechanism for a bridge deck crane according to claim 1, characterized in that: A motor (11) is fixedly connected to the fixed box (10), and a bidirectional screw (12) is fixedly connected to the output shaft of the motor (11). The bidirectional screw (12) is rotatably connected inside the fixed box (10).

3. The anti-tipping mechanism for a bridge deck crane according to claim 2, characterized in that: The two ends of the bidirectional screw (12) are respectively threaded to two threaded plates (13), and the two threaded plates (13) are respectively fixedly connected to two connecting plates (14). The fixed box (10) has two sliding grooves (15), and the two ends of the two rotating columns (16) are respectively located in the two sliding grooves (15).

4. The anti-tipping mechanism for a bridge deck crane according to claim 1, characterized in that: Multiple support plates (6) are fixedly connected to the electric slide (3), and the multiple support plates (6) are connected to the fixed plate (4) by bolts.

5. The anti-tipping mechanism for a bridge deck crane according to claim 1, characterized in that: Four support plates (7) are fixedly connected to the four fixed plates (4), and four fixed seats (8) are fixedly connected to the electric slide (3). The four support plates (7) are rotatably connected to the four fixed seats (8).

6. The anti-tipping mechanism for a bridge deck crane according to claim 5, characterized in that: Two support rods (9) are fixedly connected to the four fixed plates (4).

Images