Anti-falling crane

Abstract

The utility model discloses an anti-falling crane which comprises a mounting frame, two sides of the mounting frame are fixedly connected with bases, the top of the mounting frame is provided with a connecting frame, a supporting plate is fixedly connected between one side of the mounting frame and the bottom of the connecting frame, one side of each base is fixedly connected with a moving wheel, and two sides of the mounting frame are fixedly connected with connecting plates. Auxiliary wheels are fixedly connected to the bottom of the connecting plate, a limiting assembly is arranged at the bottom of the base, a rope is arranged at the top of the connecting frame, a lifting hook is arranged at the bottom of the rope, a fixing frame is fixedly connected to one side of the mounting frame, and a mounting rod is arranged in the fixing frame. According to the anti-falling crane disclosed by the utility model, the anti-falling component is arranged, so that a heavy object can be effectively prevented from falling due to a sling or equipment fault in an operation process, the risk of a construction site accident is obviously reduced, the safety of workers and surrounding personnel is protected, and accidents caused by misoperation are reduced by enhancing the control on the lifted object.

Description

Technical Field

[0001] The utility model relates to the technical field of workshop cranes, in particular to a crane with anti-falling function. Background Art

[0002] A workshop crane is a lifting device specially designed for small factories, workshops or maintenance areas. It is usually suitable for lifting relatively light weights, with a general load capacity ranging from 500 kg to 2000 kg, and is suitable for handling small components and equipment.

[0003] The workshop crane can lift heavy objects manually or electrically. Manual operation may require more physical effort from the operator, especially when handling heavy objects, which increases fatigue. As fatigue increases, the operator may become inattentive and have slow reactions, and problems such as the falling of objects may occur, thus increasing the risk of operation errors. In view of the above problems, we have developed a crane with anti-falling function. Content of the Utility Model

[0004] The utility model discloses a crane with anti-falling function. By researching and improving the existing structure and deficiencies, a crane with anti-falling function is provided to achieve a better practical value.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A crane with anti-falling function includes a mounting frame. Both sides of the mounting frame are fixedly connected with bases. A connecting frame is arranged at the top of the mounting frame. A support plate is fixedly connected between one side of the mounting frame and the bottom of the connecting frame. A moving wheel is fixedly connected to one side of the base. Connecting plates are fixedly connected to both sides of the mounting frame. Auxiliary wheels are fixedly connected to the bottoms of the connecting plates. A limiting component is arranged at the bottom of the base. A rope is arranged at the top of the connecting frame. A hook is arranged at the bottom of the rope. A fixed frame is fixedly connected to one side of the mounting frame. A mounting rod is arranged inside the fixed frame. A winding roller is arranged on the outer side of one of the mounting rods. A mounting frame is fixedly connected to one side of the inner wall of the fixed frame. A worm is rotatably connected inside the mounting frame. A turning handle is arranged on the outer side of the worm. A worm gear is fixedly connected to one end of the winding roller. The worm is meshed with the worm gear. An anti-falling component is arranged on one side of the mounting frame.

[0007] In a preferred embodiment, the anti-falling component includes a first fixing plate. Mounting blocks are fixedly connected to both the top and bottom of the first fixing plate. Bolts are equidistantly threadedly connected between the mounting blocks and the mounting frame. Two second fixing plates are fixedly connected to one side of the first fixing plate. Two limiting rods are slidably connected between one sides of the two second fixing plates. Nuts are threadedly connected to the outer sides of the two limiting rods. The outer side of the limiting rod is slidably connected to the outer side of the rope.

[0008] In a preferred embodiment, the anti-falling component further includes a first baffle. The first baffle is rotatably connected between one sides of the second fixing plates. A notch is formed in one side of the first baffle. A second baffle is fixedly connected to the bottom of the second fixing plate.

[0009] In a preferred embodiment, a hydraulic rod is arranged between one sides of the second fixing plates. Connecting heads are arranged on both sides of the hydraulic rod. The interior of one of the connecting heads is connected to one side of the second fixing plate through a shaft body. Fixing blocks are fixedly connected to the bottom of the first baffle at equal intervals. One side of the fixing block is rotatably connected to the interior of the other connecting head through a shaft body.

[0010] In a preferred embodiment, the limiting component includes a threaded rod. The threaded rod is equidistantly threadedly connected to the interior of the base. A limiting block is rotatably connected to the bottom of the threaded rod. A handle is fixedly connected to the top of the threaded rod.

[0011] In a preferred embodiment, a control switch is arranged on the back of the fixed frame. The hydraulic rod is electrically connected to the control switch.

[0012] The anti-falling crane provided by the present utility model has the following advantages:

[0013] First, by arranging the anti-falling component, when the rope of the crane becomes loose, overloaded or other abnormal situations occur, when the item falls under the action of gravity, by starting the hydraulic rod to extend, the first baffle is driven to rotate, so that the notch wraps the rope, and continues to extend, so that the first baffle pushes the rope close to the second baffle, and finally the rope is clamped by the notch and the second baffle, so that the rope can be locked in time, effectively preventing the heavy object from falling, and thus ensuring the safety of the operator and the surrounding personnel.

[0014] Second, by arranging the limiting component, not only can the crane be supported, but also the crane can be prevented from shifting during the process of lifting heavy objects, reducing the risk caused by the inclination or swing of the heavy object. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of an anti-falling crane proposed by the present utility model.

[0016] Figure 2 The explosion schematic diagram of a fall - prevention crane proposed by the present utility model.

[0017] Figure 3 The sectional schematic diagram of the fall - prevention mechanism of a fall - prevention crane proposed by the present utility model.

[0018] Figure 4 A fall - prevention crane proposed by the present utility model Figure 1 The enlarged schematic diagram at position A.

[0019] In the attached drawings: 1. mounting frame; 2. base; 3. connecting frame; 4. rope; 5. hook; 6. support plate; 7. moving wheel; 8. connecting plate; 9. auxiliary wheel; 10. threaded rod; 11. handle; 12. limit block; 13. fixed frame; 14. mounting rod; 15. winding roller; 16. mounting frame; 17. worm; 18. turning handle; 19. worm gear; 20. first fixing plate; 21. mounting block; 22. bolt; 23. second fixing plate; 24. limiting rod; 25. first baffle; 26. notch; 27. second baffle; 28. hydraulic rod; 29. connecting head; 30. fixed block. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the attached drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the attached drawings is not intended to limit the scope of the present application claimed, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0021] A fall - prevention crane disclosed by the present utility model is mainly applied to the scenario of a workshop crane.

[0022] Refer to Figures 1 to 4, a fall-preventing crane, comprising: a mounting frame 1, both sides of the mounting frame 1 are fixedly connected with bases 2, a connecting frame 3 is arranged at the top of the mounting frame 1, a support plate 6 is fixedly connected between one side of the mounting frame 1 and the bottom of the connecting frame 3, a moving wheel 7 is fixedly connected to one side of the base 2, connecting plates 8 are fixedly connected to both sides of the mounting frame 1, auxiliary wheels 9 are fixedly connected to the bottoms of the connecting plates 8, a limiting component is arranged at the bottom of the base 2, a rope 4 is arranged at the top of the connecting frame 3, a hook 5 is arranged at the bottom of the rope 4, a fixed frame 13 is fixedly connected to one side of the mounting frame 1, a mounting rod 14 is arranged inside the fixed frame 13, a winding roller 15 is arranged on the outer side of one of the mounting rods 14, a mounting frame 16 is fixedly connected to one side of the inner wall of the fixed frame 13, a worm 17 is rotatably connected inside the mounting frame 16, a turning handle 18 is arranged on the outer side of the worm 17, a worm gear 19 is fixedly connected to one end of the winding roller 15, the worm 17 is meshed with the worm gear 19, and a fall-preventing component is arranged on one side of the mounting frame 1;

[0023] The fall-preventing component includes a first fixing plate 20, mounting blocks 21 are fixedly connected to both the top and the bottom of the first fixing plate 20, bolts 22 are equidistantly threadedly connected between the mounting blocks 21 and the mounting frame 1, two second fixing plates 23 are fixedly connected to one side of the first fixing plate 20, two limiting rods 24 are slidably connected between the two second fixing plates 23, nuts are threadedly connected to the outer sides of the two limiting rods 24, and the outer sides of the limiting rods 24 are slidably connected to the outer side of the rope 4;

[0024] The fall-preventing component further includes a first baffle 25, the first baffle 25 is rotatably connected between the two second fixing plates 23, a notch 26 is formed in one side of the first baffle 25, and a second baffle 27 is fixedly connected to the bottom of the second fixing plate 23;

[0025] A hydraulic rod 28 is arranged between the two second fixing plates 23, connecting heads 29 are arranged on both sides of the hydraulic rod 28, the inner part of one of the connecting heads 29 is connected to one side of the second fixing plate 23 through a shaft body, and the bottom of the first baffle 25 is fixedly connected with fixing blocks 30 at equal intervals, and one side of the fixing blocks 30 is rotatably connected to the inner part of the other connecting head 29 through a shaft body.

[0026] In the above technical solution, considering that there is a workshop crane that can lift heavy objects manually or electrically, and manual operation may require more physical strength from the operator, especially when dealing with heavy objects, which increases the sense of fatigue. As the fatigue increases, the operator may become inattentive and have a slow reaction, and problems such as the falling of objects may occur, thus increasing the risk of operation errors. To solve such problems, the specific operation is as follows: By setting up an anti-falling component, when the rope 4 of the crane becomes loose, overloaded or other abnormal situations occur, and the object falls under the action of gravity, the hydraulic rod 28 is activated to extend, thereby driving the first baffle 25 to rotate, so that the notch 26 wraps the rope 4, continues to extend, makes the first baffle 25 push the rope 4 close to the second baffle 27, and finally uses the notch 26 and the second baffle 27 to clamp the rope 4, so that the rope 4 can be locked in time, effectively preventing the heavy object from falling, and thus ensuring the safety of the operator and the surrounding personnel.

[0027] Referring to Figures 1 to 4 , in a preferred embodiment, the limiting component includes a threaded rod 10, the threaded rod 10 is threadedly connected at equal intervals inside the base 2, the bottom of the threaded rod 10 is rotatably connected with a limiting block 12, and the top of the threaded rod 10 is fixedly connected with a handle 11; a plurality of rollers are provided at the bottom of the crane, and the rollers are equipped with locking devices. When the crane hangs a heavy object, the position of the rollers can be locked to prevent them from moving and ensure that the crane is stable and immobile. However, only limiting by the rollers is not stable enough, and it is easy to move when lifting an object. After moving the crane to the designated position, then rotate the handle 11, and then the threaded rod 10 moves downward, so that the bottom of the limiting block 12 abuts against the ground to support and limit the crane.

[0028] Referring to Figures 1 to 4 , in a preferred embodiment, a control switch is provided on the back of the fixed frame 13, and the hydraulic rod 28 is electrically connected to the control switch; by setting the control switch, it is convenient to start the hydraulic rod 28 in time.

[0029] Working principle: When in use, after moving the crane to the designated position, then rotate the handle 11, and then the threaded rod 10 moves downward, so that the bottom of the limiting block 12 abuts against the ground to support and limit the crane. When the rope 4 of the crane becomes loose, overloaded or other abnormal situations occur, and the object falls under the action of gravity, the hydraulic rod 28 is activated to extend, thereby driving the first baffle 25 to rotate, so that the notch 26 wraps the rope 4, continues to extend, makes the first baffle 25 push the rope 4 close to the second baffle 27, and finally uses the notch 26 and the second baffle 27 to clamp the rope 4, so that the rope 4 can be locked in time to prevent the heavy object from falling. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] As described above, it is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. The substitution may be a substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present utility model and its inventive concept shall be covered within the protection scope of the present utility model.

Claims

1. A fall-proof crane, comprising a mounting frame (1), characterized in that: Both sides of the mounting frame (1) are fixedly connected to a base (2); a connecting frame (3) is arranged on the top of the mounting frame (1); a support plate (6) is fixedly connected between one side of the mounting frame (1) and the bottom of the connecting frame (3); one side of the base (2) is fixedly connected to a moving wheel (7); both sides of the mounting frame (1) are fixedly connected to a connecting plate (8); the bottom of the connecting plate (8) is fixedly connected to an auxiliary wheel (9); a limit position assembly is arranged at the bottom of the base (2); a rope (4) is arranged on the top of the connecting frame (3); a hook (5) is arranged at the bottom of the rope (4); A fixing frame (13) is fixedly connected to one side of the frame (1), a mounting rod (14) is arranged inside the fixing frame (13), a winding roller (15) is arranged on the outside of one of the mounting rods (14), a mounting frame (16) is fixedly connected to one side of the inner wall of the fixing frame (13), a worm (17) is rotatably connected inside the mounting frame (16), a turning handle (18) is arranged on the outside of the worm (17), one end of the winding roller (15) is fixedly connected to a worm wheel (19), the worm (17) is meshed with the worm wheel (19), and an anti-falling component is arranged on one side of the mounting frame (1).

2. The anti-fall crane according to claim 1, characterized in that: The anti-fall assembly comprises a first fixing plate (20), the top and bottom of the first fixing plate (20) are fixedly connected to mounting blocks (21), bolts (22) are equidistantly threadedly connected between the mounting blocks (21) and the mounting frame (1), one side of the first fixing plate (20) is fixedly connected to two second fixing plates (23), one side of the two second fixing plates (23) is slidably connected to two limiting rods (24), the outer sides of the two limiting rods (24) are threadedly connected to nuts, and the outer sides of the limiting rods (24) are slidably connected to the outer sides of the ropes (4).

3. The anti-fall crane according to claim 2, characterized in that: The anti-falling assembly further comprises a first baffle plate (25), the first baffle plate (25) being rotatably connected between one side of the second fixing plate (23), a notch (26) being provided on one side of the first baffle plate (25), and a second baffle plate (27) being fixedly connected to the bottom of the second fixing plate (23).

4. The anti-fall crane according to claim 3, characterized in that: A hydraulic rod (28) is provided between one side of the second fixed plate (23), and connecting heads (29) are provided on both sides of the hydraulic rod (28), wherein the interior of one of the connecting heads (29) is connected to one side of the second fixed plate (23) via an axle, and a fixing block (30) is fixedly connected to the bottom of the first baffle (25) at an equidistant distance, and one side of the fixing block (30) is rotatably connected to the interior of another connecting head (29) via an axle.

5. The anti-fall crane according to claim 1, characterized in that: The limit assembly comprises a threaded rod (10), the threaded rod (10) being equidistantly threadedly connected to the interior of the base (2), the bottom of the threaded rod (10) being rotatably connected to a limit block (12), and the top of the threaded rod (10) being fixedly connected to a handle (11).

6. The anti-fall crane according to claim 4, characterized in that: A control switch is provided on the back of the fixing frame (13), and the hydraulic rod (28) is electrically connected to the control switch.

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