Construction crane with anti-falling function

Abstract

The utility model relates to the technical field of crane, concretely relates to a construction crane with anti -drop function, including delivery frame, the inside opening of delivery frame's top has movable cavity, the bottom wall in movable cavity installs servo motor no.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a construction crane with anti-falling function. Background Technology

[0002] Large construction sites require a lot of building materials. The materials are transported according to the construction progress. When the building reaches a certain height, some building materials need to be transported by crane in conjunction with delivery equipment to reduce manual labor. During the hoisting and transportation process, the building materials are placed in delivery frames, which can transport a large amount of building materials at one time and also protect the building materials to a certain extent.

[0003] A search revealed a utility model patent with publication number CN213085205U, which discloses a construction crane hoisting device to prevent falling materials. The device includes a loading frame, columns, handles, and positioning frames. A protective door is rotatably mounted on the front of the loading frame. The columns are symmetrically mounted on both sides of the upper surface of the loading frame. A rotating cylinder is rotatably mounted in the middle of the upper inner surface of the loading frame, and internal rods are installed through both sides of the upper surface of the loading frame. The handle is rotatably mounted on the upper surface of the loading frame, and an external thread is pre-drilled on the outside of the handle. A ring is welded to the side of the internal threaded ring and is movably mounted on the outside of the column. A drive gear is fixedly mounted at the lower end of the handle, and a side groove is provided on the outside of the rotating cylinder. This construction crane hoisting device employs a novel structural design, making it easy to limit and fix the loaded building materials. Furthermore, the device incorporates a center-of-gravity adjustment structure, improving safety during high-altitude transport.

[0004] The aforementioned patent uses a rotating drum with a rotating structure and a pressure plate with an elastic structure to load building materials into the loading frame. When the rotating handle drives the rotating drum to rotate through the transmission structure, the pressure plate moves up and down under the transmission action of the sliding structure. The pressure plate limits and fixes the building materials at the lower end under the elastic action of the limiting spring, preventing the building materials from swaying and falling down during high-altitude transportation. This improves the practicality of the device. However, it cannot fully limit and press building materials of different lengths and specifications as well as those extending beyond the sides of the delivery frame. Furthermore, the opening side of the loading frame lacks a limiting baffle structure, which is not conducive to effectively preventing the risk of objects falling.

[0005] Therefore, it is necessary to invent a construction crane with anti-fall function to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a construction crane with an anti-fall function. By controlling the moving block in conjunction with the transmission rod, the connecting rod is driven to rotate. The pressure plate at the head end, with the rebound action of the spring, can adaptively conform to the surface of the material extending from the side of the delivery frame. This achieves a clamping and limiting effect on building materials of different lengths and thicknesses, improving the anti-fall effect. This solves the problems in the prior art that it cannot adequately limit and clamp building materials of different lengths and extending from the sides of the delivery frame, and that the lack of limiting baffle structure at the opening side of the storage frame makes it difficult to effectively prevent the risk of objects falling.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a construction crane with anti-fall function, comprising a delivery frame, a movable cavity opened in the top of the delivery frame, a servo motor installed on the bottom wall of the movable cavity, a rotating rod fixedly connected to the output shaft of the servo motor via a coupling, a gear plate fixedly connected to the upper end of the rotating rod, bevel teeth meshing on both sides of the gear plate, the bevel teeth cooperating with the gear plate, a rotating rod inserted into the interior of each of the two bevel teeth, a one-way screw fixedly connected to the end of the rotating rod, the one-way screw extending to the outside of the delivery frame, the rotating rod being rotatably connected to the delivery frame, a moving block threaded onto the external thread of the one-way screw, a transmission rod hinged to the bottom of the moving block, a connecting rod hinged to the end of the transmission rod, one end of the connecting rod hinged to the delivery frame, a pressure plate hinged to the other end of the connecting rod, the pressure plate being fixedly connected to the connecting rod via a spring, and a friction-increasing contact pad fixedly provided at the bottom of the pressure plate.

[0008] Preferably, the bottom wall of the delivery frame is provided with a movable groove, and a servo motor 2 is installed in the bottom wall of the movable groove. The output end of the servo motor 2 is fixedly connected to a rotating rod 3 through a coupling. A gear plate 2 is fixedly provided at the upper end of the rotating rod 3. A bevel tooth 2 is meshed with one side of the gear plate 2, and the gear plate 2 and the bevel tooth 2 cooperate with each other.

[0009] Preferably, a bidirectional screw is fixedly installed inside the second bevel tooth, and the bidirectional screw is rotatably connected to the inner wall of the movable groove. Both ends of the bidirectional screw are threaded with movable sleeves.

[0010] Preferably, a sleeve rod is fixedly connected to the bottom of the movable sleeve, and a guide rod is slidably disposed inside the bottom end of the sleeve rod, the guide rod being fixedly connected to the bottom wall of the movable groove.

[0011] Preferably, the bottom wall of the movable groove is symmetrically hinged with connecting plates, the surface of the connecting plates is provided with guide grooves, a guide block is slidably arranged inside the guide grooves, the guide block is hinged to the movable sleeve, and a baffle is fixedly connected to the end of the connecting plates.

[0012] Preferably, a lifting ring is fixedly provided at the top of the delivery frame.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. By manipulating the moving block to move and cooperating with the transmission rod to drive the connecting rod to rotate, the pressure plate at the head end, in conjunction with the spring's rebound, can adaptively fit the surface of the material extending from the side of the delivery frame, thus achieving the function of pressing and limiting building materials of different lengths and thicknesses, and improving the anti-falling effect.

[0015] 2. By manipulating the moving sleeve in conjunction with the guide block to slide along the guide groove, the angle of the baffle can be adjusted so that the two baffles can limit and block the openings on both sides of the delivery frame, which can effectively help avoid the risk of building materials placed inside falling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the connection between the pressure plate and the delivery frame of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the connection between the baffle and the delivery frame of this utility model.

[0021] Figure 5 This is a schematic cross-sectional view of the connection between the movable sleeve and the delivery frame of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Delivery frame; 2. Movable cavity; 3. Servo motor one; 4. Rotating rod one; 5. Gear disc one; 6. Bevel gear one; 7. Rotating rod two; 8. One-way screw; 9. Moving block; 10. Transmission rod; 11. Connecting rod; 12. Pressure plate; 13. Spring; 14. Friction-increasing contact pad; 15. Movable groove; 16. Servo motor two; 17. Rotating rod three; 18. Gear disc two; 19. Bevel gear two; 20. Two-way screw; 21. Moving sleeve; 22. Sleeve rod; 23. Guide rod; 24. Connecting plate; 25. Guide groove; 26. Guide block; 27. Baffle; 28. Lifting ring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5 The construction crane shown includes a delivery frame 1. A movable cavity 2 is formed in the top of the delivery frame 1. A servo motor 3 is installed on the bottom wall of the movable cavity 2. The output shaft of the servo motor 3 is fixedly connected to a rotating rod 4 via a coupling. A gear plate 5 is fixedly connected to the upper end of the rotating rod 4. Both sides of the gear plate 5 are meshed with bevel teeth 6, which cooperate with the gear plate 5. Rotating rods 7 are fixedly inserted into the interior of both bevel teeth 6. A one-way screw 8 is fixedly connected to the end of the rotating rod 7, extending to the outside of the delivery frame 1. The rotating rod 7 is rotatably connected to the delivery frame 1. A moving block 9 is threaded onto the outside of the one-way screw 8. A transmission rod 10 is hinged to the bottom of the moving block 9. A connecting rod 11 is hinged to the end of the transmission rod 10. One end of the connecting rod 11 is hinged to the delivery frame 1, and the other end of the connecting rod 11... One end is hinged to a pressure plate 12, which is fixedly connected to the connecting rod 11 by a spring 13. A friction-enhancing contact pad 14 is fixedly installed at the bottom of the pressure plate 12. Through the arrangement and cooperation of the servo motor 3, the rotating rod 4, the gear plate 5, and the bevel gear 6, the two rotating rods 7 and the connected one-way screw 8 can be driven to rotate synchronously. This causes the moving block 9 to move along the one-way screw 8 and push the connecting rod 11 to move through the transmission rod 10. The pressure plate 12 at the end can automatically fit the surface of the building material due to the elasticity of the spring 13. With the adjustable angle of the connecting rod 11 and the pressure plate 12, it is convenient to perform pressing operations on materials of different lengths and those extending beyond the side opening of the delivery frame 1. The friction-enhancing contact pad 14 has a uniform raised structure on its surface to improve the contact friction effect. The rebound action of the spring 13 can adapt to the angle rotation of the pressure plate 12.

[0026] The bottom wall of the delivery frame 1 is provided with a movable groove 15. A servo motor 2 16 is installed in the bottom wall of the movable groove 15. The output end of the servo motor 2 16 is fixedly connected to a rotating rod 3 17 through a coupling. A gear plate 2 18 is fixedly installed at the upper end of the rotating rod 3 17. A bevel tooth 2 19 is meshed on one side of the gear plate 2 18. The gear plate 2 18 and the bevel tooth 2 19 cooperate. During the rotation of the two bidirectional screws 20, the movable sleeve 21 moves accordingly.

[0027] The inner part of the bevel tooth 19 is fixedly provided with a bidirectional screw 20, which is rotatably connected to the inner wall of the movable groove 15. Both ends of the bidirectional screw 20 are threaded with movable sleeves 21.

[0028] The bottom of the movable sleeve 21 is fixedly connected to a sleeve rod 22, and a guide rod 23 is slidably arranged inside the bottom end of the sleeve rod 22. The guide rod 23 is fixedly connected to the bottom wall inside the movable groove 15. The sleeve rod 22 can slide along the guide rod 23 to limit and assist the movable sleeve 21 to move linearly along the bidirectional screw 20.

[0029] The bottom wall of the movable groove 15 is symmetrically hinged with a connecting plate 24. A guide groove 25 is opened on the surface of the connecting plate 24. A guide block 26 is slidably arranged inside the guide groove 25. The guide block 26 is hinged to the movable sleeve 21. A baffle 27 is fixedly connected to the end of the connecting plate 24. The guide block 26 can slide along the guide groove 25 to adapt to the rotation of the connecting plate 24. It can move and rotate with the movable sleeve 21 to adjust the angle of the openings on both sides of the delivery frame 1.

[0030] A lifting ring 28 is fixedly installed on the top of the delivery frame 1, which facilitates connection with lifting equipment.

[0031] The working principle of this practical application is as follows:

[0032] By setting and cooperating with servo motor 3, rotating rod 4, gear plate 5, and bevel gear 6, two rotating rods 7 and the connected one-way screw 8 can be driven to rotate synchronously. This causes the moving block 9 to move along the one-way screw 8, while the transmission rod 10 pushes the connecting rod 11 to move. This allows the end pressure plate 12 to automatically fit against the surface of the building material with the elasticity of the spring 13, thus pressing and fixing the part of the material that extends out of the delivery frame 1. If the building material is a small item, when it is placed in the space inside the delivery frame 1, the servo motor 16 is driven to rotate the bidirectional screw 20. The two moving sleeves 21 drive the connecting plate 24 to adjust the angle, so that the two baffles 27 can assist in blocking the openings on both sides of the delivery frame 1, reducing the risk of the material falling to the side.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A construction crane with anti-fall function, comprising a delivery frame (1), characterized in that: The delivery frame (1) has a movable cavity (2) at its top. A servo motor (3) is installed on the bottom wall of the movable cavity (2). The output shaft of the servo motor (3) is fixedly connected to a rotating rod (4) via a coupling. A gear plate (5) is fixedly connected to the upper end of the rotating rod (4). Both sides of the gear plate (5) are meshed with bevel teeth (6). The bevel teeth (6) cooperate with the gear plate (5). A rotating rod (7) is fixedly inserted into the interior of each of the two bevel teeth (6). A one-way screw (8) is fixedly connected to the end of the rotating rod (7). Extending to the outside of the delivery frame (1), the rotating rod (7) is limited to the rotational connection of the delivery frame (1). The external thread of the one-way screw (8) is fitted with a moving block (9). The bottom of the moving block (9) is hinged with a transmission rod (10). The end of the transmission rod (10) is hinged with a connecting rod (11). One end of the connecting rod (11) is hinged to the delivery frame (1). The other end of the connecting rod (11) is hinged with a pressure plate (12). The pressure plate (12) and the connecting rod (11) are fixedly connected by a spring (13). The bottom of the pressure plate (12) is fixedly provided with a friction-increasing contact pad (14).

2. A construction crane with anti-fall function according to claim 1, characterized in that: The bottom wall of the delivery frame (1) is provided with a movable groove (15). A servo motor (16) is installed on the bottom wall of the movable groove (15). The output end of the servo motor (16) is fixedly connected to a rotating rod (17) through a coupling. A gear plate (18) is fixedly installed on the upper end of the rotating rod (17). A bevel tooth (19) is meshed on one side of the gear plate (18). The gear plate (18) and the bevel tooth (19) cooperate with each other.

3. A construction crane with anti-fall function according to claim 2, characterized in that: The inner part of the bevel tooth 2 (19) is fixedly provided with a bidirectional screw (20), which is rotatably connected to the inner wall of the movable groove (15). Both ends of the bidirectional screw (20) are threaded with movable sleeves (21).

4. A construction crane with anti-fall function according to claim 3, characterized in that: The bottom of the movable sleeve (21) is fixedly connected to a sleeve rod (22), and a guide rod (23) is slidably arranged inside the bottom end of the sleeve rod (22). The guide rod (23) is fixedly connected to the bottom wall of the movable groove (15).

5. A construction crane with anti-fall function according to claim 2, characterized in that: The bottom wall of the movable groove (15) is symmetrically hinged with a connecting plate (24). A guide groove (25) is provided on the surface of the connecting plate (24). A guide block (26) is slidably arranged inside the guide groove (25). The guide block (26) is hinged to the movable sleeve (21). A baffle (27) is fixedly connected to the end of the connecting plate (24).

6. A construction crane with anti-fall function according to claim 1, characterized in that: The top of the delivery box (1) is fixedly equipped with a hanging ring (28).

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