Lifting appliance with cable loosening prevention function

Abstract

The utility model discloses a sling with a cable anti-loosing function, which comprises a mounting rack, a winding drum, a bottom plate and a compression roller, the winding drum is rotatably arranged on the mounting rack, a cable is wound on the winding drum, the bottom plate is fixedly arranged on the mounting rack, the bottom plate is positioned below the winding drum, a pressing mechanism is arranged on the bottom plate, and the compression roller is arranged on the mounting rack. The pressing mechanism comprises a connecting rod and a rocker arm, the connecting rod is fixedly arranged on the mounting frame, the rocker arm is rotationally arranged on the connecting rod, the rocker arm is connected with the bottom plate through a bolt, the bolt is sleeved with a spring, the pressing roller is rotationally arranged at the end, away from the bolt, of the rocker arm, and the pressing roller makes contact with the cable. According to the anti-loosening device, the spring drives the rocker arm to rotate towards the side close to the winding drum, so that the compression roller can be tightly pressed on the cable, the cable is prevented from loosening in the unwinding and winding processes, and the anti-loosening effect of the cable is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a sling with a cable loosening prevention function. Background Art

[0002] Refers to the device used in lifting machinery to lift heavy objects. The most commonly used lifting tools for lifting finished items are hooks and slings, and others include lifting rings, lifting suction cups, clamps and forks. It is widely used in the lifting and hoisting industry. During lifting work, the cable is wound on the drum, and one end of the cable is connected to the hook. The cable is wound and unwound by rotating the drum, so that the hook rises or falls, and lifting is performed. However, after long-term use, the cable will bend and deform, and the cable may become loose and loosely wound when it is wound and unwound, resulting in the cable being wound around the drum in a disorderly manner, thus affecting the normal operation of the lifting device. Utility Model Content

[0003] The utility model aims to provide a lifting device with a cable loosening prevention function in view of the above-mentioned deficiencies in the prior art.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A lifting device with a cable loosening prevention function comprises a mounting frame,

[0006] A drum is rotatably mounted on the mounting frame, and a cable is wound around the drum;

[0007] A bottom plate is fixedly mounted on the mounting frame, the bottom plate is located below the reel, and a pressing mechanism is disposed on the bottom plate;

[0008] The pressing roller is rotatably arranged on the pressing mechanism and contacts the cable.

[0009] Preferably, the clamping mechanism comprises a connecting rod, and the connecting rod is fixedly connected to the bottom plate;

[0010] A rocker arm is rotatably mounted on the connecting rod, and the pressure roller is rotatably mounted on the rocker arm;

[0011] The elastic component is arranged between the rocker arm and the base plate.

[0012] Preferably, the elastic component includes a bolt and a spring, the bolt is used to connect the rocker arm and the base plate, the spring is sleeved on the bolt, and the spring is located between the rocker arm and the base plate.

[0013] Preferably, the outer wall of the drum is provided with a first rope groove, and the rope groove is wound in the first rope groove.

[0014] Preferably, a rope guide is provided on the drum, and a second rope groove is provided on the inner wall of the rope guide, and the second rope groove is used for placing the cable.

[0015] Preferably, a guide rod is fixedly provided on the mounting frame, a slider is provided on the rope guide, and the slider is slidably provided on the guide rod.

[0016] Preferably, an avoidance groove is provided on the rope guide, and the pressure roller is located in the avoidance groove.

[0017] Preferably, a connecting plate is fixedly connected to the rope guide, and the connecting plate is located outside the avoidance groove.

[0018] Preferably, a rope threading hole is provided on the rope guide, and the cable is passed through the rope threading hole.

[0019] Preferably, a fixing block is fixedly provided on the drum for fixing the cable on the drum.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] In the utility model, the cable is wound on a drum, and the cable can be wound and unwound by rotating the drum on the mounting frame, thereby causing the hook to rise or fall and realize lifting. In order to prevent the cable from loosening during the winding and unwinding process, the pressure roller is tightly pressed against the cable, and the rocker arm is rotated by the elastic force of the spring, so that the pressure roller is pressed tightly against the cable. During the winding and unwinding process, the cable can be effectively prevented from loosening due to the pressure of the pressure roller, thereby realizing the anti-loosening effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;

[0024] Figure 3 yes Figure 2 A magnified view of part A;

[0025] Figure 4 It is a three-dimensional schematic diagram of the rope guide of the utility model.

[0026] In the figure: 1 is a mounting frame, 2 is a reel, 3 is a bottom plate, 4 is a pressure roller, 5 is a connecting rod, 6 is a rocker arm, 7 is a bolt, 8 is a rope guide, 9 is a guide rod, 10 is a slider, 11 is a connecting plate, 12 is a fixing block, and 13 is a rope threading hole. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 4 As shown, a lifting device with a cable loosening prevention function includes a mounting frame 1, a drum 2, a base plate 3 and a pressure roller 4. The mounting frame 1 is provided with rollers for walking and moving on an overhead track. The drum 2 is rotatably arranged on the mounting frame 1. A cable is wound around the drum 2. A hook is connected to the cable for lifting. The base plate 3 is fixedly arranged on the mounting frame 1. The base plate 3 is located below the drum 2. A clamping mechanism is also arranged on the base plate 3. The pressure roller 4 is rotatably arranged on the clamping mechanism. The pressure roller 4 is arranged parallel to the drum 2, and the pressure roller 4 is in close contact with the cable. In the utility model, the sling is arranged on an aerial track, and the cable is wound or unwound by rotating the drum 2, so as to perform lifting work. During the winding or unwinding process, the pressure roller 4 is always in close contact with the cable to press the cable, and the pressing mechanism can provide a pressing force to the pressure roller 4. Due to the pressure of the pressure roller 4, the cable can be prevented from loosening during the winding or unwinding process, thereby achieving an anti-loosening effect.

[0031] It should be noted that a transmission mechanism is provided on the mounting frame 1, and the transmission mechanism includes a transmission motor. The transmission motor is fixedly arranged on the mounting frame 1, and the transmission motor is connected to the reel 2 by transmission, so that the transmission motor can drive the reel 2 to rotate on the mounting frame 1.

[0032] Furthermore, the clamping mechanism includes a connecting rod 5, a rocker arm 6 and an elastic component, the connecting rod 5 is fixedly connected to the base plate 3, the connecting rod 5 is arranged parallel to the reel 2, the connecting rod 5 is located between the base plate 3 and the reel 2, the rocker arm 6 is an L-shaped structure, the middle part of the rocker arm 6 is rotatably connected to the connecting rod 5, the pressure roller 4 is rotatably arranged at one end of the rocker arm 6, and the elastic component is arranged at the other end of the rocker arm 6, the elastic component includes a bolt 7 and a spring, the bolt 7 is used to connect the rocker arm 6 and the base plate 3 together, the rocker arm 6 can be rocked on the bolt 7, a nut is screwed on the bolt 7, the nut is located above the rocker arm 6, and is used to limit the rocker arm 6 to prevent the rocker arm 6 from detaching from the bolt 7, the spring is sleeved on the bolt 7, the spring is located between the rocker arm 6 and the base plate 3, the spring can provide a clamping force to the rocker arm 6, drive the rocker arm 6 to rotate to the side away from the base plate 3, so that the pressure roller 4 can clamp the cable.

[0033] Furthermore, a first rope groove is provided on the outer wall of the drum 2, and the first rope groove is spirally arranged. The cable is wound in the first rope groove. During the rotation of the drum 2, since the cable is located in the first rope groove, the cable can be prevented from becoming disordered, making the cable winding more neat.

[0034] Furthermore, the drum 2 is provided with a rope guide 8, and the inner wall of the rope guide 8 is provided with a second rope groove, and the second rope groove is used for placing the cable. The mounting frame 1 is fixedly provided with a guide rod 9, and the guide rod 9 is arranged parallel to the drum 2. The rope guide 8 is provided with a slider 10, and the slider 10 is slidably arranged on the guide rod 9. During the process of the drum 2 rotating to reel in and unreel the cable, since the second rope groove is opened on the rope guide 8, the cable is reeled in and unreeled in the second rope groove, which acts as a rope guide for the cable. While reeling in and unreeling, the rope guide 8 moves horizontally along the drum 2. In order to prevent the rope guide 8 from rotating on the drum, the slider 10 slides on the guide rod 9 to make the rope guide 8 move horizontally along the direction of the guide rod 9.

[0035] Furthermore, an avoidance groove is provided on the rope guide 8, and the pressure roller 4 is located in the avoidance groove. The size of the avoidance groove is larger than that of the pressure roller 4, so the pressure roller 4 can move a certain range in the avoidance groove. In order to avoid the rope guide 8 from breaking at the avoidance groove due to long-term use and wear, causing the rope guide 8 to fall off the reel 2, a connecting plate 11 is also fixedly provided on the rope guide 8. The connecting plate 11 is located on the outside of the avoidance groove and can play a connecting role, making the rope guide 8 more stable. At the same time, a certain distance is left between the connecting plate 11 and the pressure roller 4, so that the pressure roller 4 can move within a certain range.

[0036] Furthermore, a rope threading hole 13 is provided on the rope guide 8, and the cable is passed through the rope threading hole 13. After passing through the rope threading hole 13, the cable is connected to the hook.

[0037] Furthermore, a fixing block 12 is fixedly provided on the drum 2 for fixing the cable on the drum 2 .

[0038] It should be noted that there are two drums 2, which are arranged in parallel. Two cables are provided on each drum, respectively located at the two ends of the drum 2. The two ends of the cable are fixed to the drum 2 through a fixing block 12. The middle part of the cable passes through the rope hole and is connected to the hook. The cable is wound and unwound by rotating the drum 2 to lift the workpiece.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sling with cable loosening prevention function, characterized in that: comprising a mounting frame (1); A drum (2) is rotatably mounted on the mounting frame (1), and a cable is wound around the drum (2); A bottom plate (3) is fixedly mounted on the mounting frame (1), the bottom plate (3) is located below the reel (2), and a clamping mechanism is disposed on the bottom plate (3); A pressure roller (4) is rotatably arranged on the pressing mechanism and contacts the cable.

2. A sling with cable loosening prevention function according to claim 1, characterized in that: The clamping mechanism comprises a connecting rod (5), and the connecting rod (5) is fixedly connected to the bottom plate (3); A rocker arm (6) is rotatably mounted on the connecting rod (5), and the pressure roller (4) is rotatably mounted on the rocker arm (6); The elastic component is arranged between the rocker arm (6) and the bottom plate (3).

3. The sling with cable loosening prevention function according to claim 2, characterized in that: The elastic component comprises a bolt (7) and a spring, wherein the bolt (7) is used to connect the rocker arm (6) and the base plate (3), and the spring is sleeved on the bolt (7), and the spring is located between the rocker arm (6) and the base plate (3).

4. The sling with cable loosening prevention function according to claim 1, characterized in that: The outer wall of the reel (2) is provided with a first rope groove, and the rope groove is wound in the first rope groove.

5. The sling with cable loosening prevention function according to claim 2, characterized in that: The drum (2) is provided with a rope guide (8), the inner wall of the rope guide (8) is provided with a second rope groove, and the second rope groove is used for placing the cable.

6. The sling with cable loosening prevention function according to claim 5, characterized in that: A guide rod (9) is fixedly arranged on the mounting frame (1), a slide block (10) is arranged on the rope guide (8), and the slide block (10) is slidably arranged on the guide rod (9).

7. The sling with cable loosening prevention function according to claim 5, characterized in that: The rope guide (8) is provided with an avoidance groove, and the pressure roller (4) is located in the avoidance groove.

8. The sling with cable loosening prevention function according to claim 7, characterized in that: A connecting plate (11) is fixedly connected to the rope guide (8), and the connecting plate (11) is located outside the avoidance groove.

9. The sling with cable loosening prevention function according to claim 5, characterized in that: The rope guide (8) is provided with a rope threading hole (13), and the cable is threaded through the rope threading hole (13).

10. The sling with cable loosening prevention function according to claim 1, characterized in that: A fixing block (12) is fixedly arranged on the drum (2) and is used to fix the cable on the drum (2).

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