Cable pulley convenient to disassemble

Abstract

The cable pulley comprises an arc-shaped support, the upper end of the arc-shaped support is provided with a mounting base, the side walls of the front end and the rear end of the center position of the arc-shaped support are provided with cylindrical protrusions, and the side walls of the front end and the rear end of the center position of the mounting base are provided with U-shaped protrusions. The arc-shaped support is in butt joint with the mounting seat, and the two bolts penetrate through the horizontal sections of the two U-shaped protrusions respectively, so that the two bolts are in threaded connection with the threaded holes of the two cylindrical protrusions respectively and are matched with the nuts to be fixed, welding fixation is replaced, the structure is simple, dismounting and replacement are convenient, and practicability is high. The two hydraulic buffers are fixedly mounted between the mounting base and the U-shaped base, the annular protection block is fixed to the lower end of the U-shaped base, the two hydraulic buffers are sleeved with the annular protection block, and therefore the annular protection block made of wear-resisting rubber is matched with the two hydraulic buffers to provide buffering protection for the U-shaped base and the pulley; and the service lives of the U-shaped seat and the pulley are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trolleys, in particular to a detachable cable trolley. Background Technique

[0002] A cable trolley is an important hoisting tool, and its main components are a wooden frame, pulleys, short shafts, and ropes. Its core component is the pulley, which can change the direction of the traction steel cable between the cable trolley and the cable trolley group multiple times and lift or move rotating objects. Especially the cable trolley group composed of cable trolleys, in cooperation with a winch, mast or other lifting machinery, is widely used in construction and installation operations.

[0003] In the actual installation and use process of the pulleys of existing cable trolleys, most of them are welded and fixed to the brackets, which is not convenient for disassembly and replacement. Moreover, the pulleys lack a buffer structure, and the sliding stability after long-term use is poor. Now, a detachable cable trolley is proposed to solve the above problems. Summary of the Utility Model

[0004] In view of the deficiencies and defects in the prior art, the utility model provides a detachable cable trolley, which is used to solve the technical problems that in the actual installation and use process of the pulleys of existing cable trolleys, most of them are welded and fixed to the brackets, which is not convenient for disassembly and replacement, and the pulleys lack a buffer structure, and the sliding stability after long-term use is poor.

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

[0006] A detachable cable trolley includes an arc-shaped bracket. An installation seat is provided at the upper end of the arc-shaped bracket. Columnar protrusions are provided on the front and rear side walls at the central position of the arc-shaped bracket. U-shaped protrusions are provided on the front and rear side walls at the central position of the installation seat. The columnar protrusions are threadedly connected to the U-shaped protrusions. A U-shaped seat is provided directly above the installation seat. A buffer assembly is provided between the installation seat and the U-shaped seat. Two fixing shafts are horizontally penetrated through the opposite side walls near the upper end of the U-shaped seat. The two fixing shafts are respectively arranged near the left and right sides of the U-shaped seat. Pulleys are fixedly installed at the front and rear ends of the two fixing shafts outside the U-shaped seat.

[0007] Preferably, the columnar protrusion and the arc-shaped bracket are integrally formed.

[0008] Preferably, the cross-section of the installation seat is trapezoidal, and the U-shaped protrusion and the installation seat are integrally formed.

[0009] Preferably, threaded holes are vertically and communicatively provided on both of the two cylindrical protrusions, bolts are vertically penetrated through the horizontal sections of the two U-shaped protrusions, the two bolts are respectively threadedly connected to the two threaded holes, nuts are threadedly sleeved on the ends of the two bolts outside the threaded holes, and the nuts are abutted and pressed against the lower ends of the cylindrical protrusions.

[0010] Preferably, the buffer assembly includes a hydraulic buffer fixedly installed at the upper end of the mounting seat and an annular protective block fixedly connected to the lower end of the U-shaped seat. The two hydraulic buffers are both located inside the annular protective block and are respectively arranged near the left and right sides of the mounting seat, and the annular protective block is arranged facing the mounting seat.

[0011] Preferably, the annular protective block is made of wear-resistant rubber.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By docking the arc-shaped bracket with the mounting seat and passing the two bolts through the horizontal sections of the two U-shaped protrusions respectively, the two bolts are respectively threadedly connected with the threaded holes of the two cylindrical protrusions and fixed with nuts, replacing the welding fixation, with a simple structure and convenient disassembly and replacement.

[0014] 2. By fixedly installing two hydraulic buffers between the mounting seat and the U-shaped seat and fixing the annular protective block at the lower end of the U-shaped seat, the annular protective block sleeves the two hydraulic buffers, so that the annular protective block made of wear-resistant rubber cooperates with the two hydraulic buffers to provide buffer protection for the U-shaped seat and the pulley, extending the service life of the U-shaped seat and the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a detachable cable pulley proposed by the present utility model;

[0016] Figure 2 is a perspective schematic diagram of a detachable cable pulley proposed by the present utility model;

[0017] Figure 3 is a structural schematic diagram of the mounting seat and the U-shaped protrusion of a detachable cable pulley proposed by the present utility model;

[0018] Figure 4 is a structural schematic diagram of the arc-shaped bracket and the cylindrical protrusion of a detachable cable pulley proposed by the present utility model;

[0019] Figure 5 is a combined structural schematic diagram of the arc-shaped bracket and the mounting seat of a detachable cable pulley proposed by the present utility model.

[0020] In the figure: 1 arc-shaped bracket, 2 mounting seat, 3 cylindrical protrusion, 4 U-shaped protrusion, 5 U-shaped seat, 6 fixed shaft, 7 pulley, 8 threaded hole, 9 bolt, 10 nut, 11 hydraulic buffer, 12 annular protection block. Specific embodiments

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation to the present invention.

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Refer to Figures 1-5 , a detachable cable pulley, including an arc-shaped bracket 1. The upper end of the arc-shaped bracket 1 is provided with a mounting seat 2. Cylindrical protrusions 3 are provided on the front and rear side walls at the center position of the arc-shaped bracket 1. The cylindrical protrusions 3 are integrally formed with the arc-shaped bracket 1. U-shaped protrusions 4 are provided on the front and rear side walls at the center position of the mounting seat 2. The cross-section of the mounting seat 2 is trapezoidal. The U-shaped protrusions 4 are integrally formed with the mounting seat 2. The cylindrical protrusions 3 are threadedly connected to the U-shaped protrusions 4. Threaded holes 8 are provided on both of the two cylindrical protrusions 3 in a vertically communicating manner. Bolts 9 are vertically penetrated through the horizontal sections of the two U-shaped protrusions 4. The two bolts 9 are respectively threadedly connected to the two threaded holes 8. Nuts 10 are threadedly sleeved on the ends of the two bolts 9 outside the threaded holes 8. The nuts 10 abut against and press the lower ends of the cylindrical protrusions 3. Manually dock the arc-shaped bracket 1 with the mounting seat 2, vertically penetrate the two bolts 9 through the horizontal sections of the two U-shaped protrusions 4 respectively, thread the two bolts 9 with the threaded holes 8 on the two cylindrical protrusions 3 respectively, and threadedly sleeve the nuts 10 on the lower ends of the bolts 9, so that the nuts 10 abut against and press the lower ends of the cylindrical protrusions 3, effectively connecting and fixing the arc-shaped bracket 1 and the mounting seat 2, replacing welding fixation, with a simple structure and convenient disassembly and replacement.

[0024] There is a U-shaped seat 5 directly above the mounting seat 2. A buffer assembly is provided between the mounting seat 2 and the U-shaped seat 5. The buffer assembly includes a hydraulic buffer 11 fixedly installed at the upper end of the mounting seat 2 and an annular protective block 12 fixedly connected to the lower end of the U-shaped seat 5. Both hydraulic buffers 11 are located within the annular protective block 12 and are respectively arranged near the left and right sides of the mounting seat 2. The annular protective block 12 is arranged facing the mounting seat 2. The annular protective block 12 is made of wear-resistant rubber. The two hydraulic buffers 11 are fixedly installed between the mounting seat 2 and the U-shaped seat 5, and the annular protective block 12 is fixed to the lower end of the U-shaped seat 5, so that the annular protective block 12 sleeves the two hydraulic buffers 11. Thus, the annular protective block 12 made of wear-resistant rubber cooperates with the two hydraulic buffers 11 to provide buffer protection for the U-shaped seat 5 and the pulley 7, extending the service life of the U-shaped seat 5 and the pulley 7. Horizontally penetrating through the opposite side walls near the upper end of the U-shaped seat 5 are two fixed shafts 6. The two fixed shafts 6 are respectively arranged near the left and right sides of the U-shaped seat 5. Pulley 7 is fixedly installed at both the front and rear ends of the two fixed shafts 6 outside the U-shaped seat 5.

[0025] When the present utility model is in use, manually dock the arc-shaped bracket 1 with the mounting seat 2. Vertically penetrate the two bolts 9 through the horizontal sections of the two U-shaped protrusions 4 respectively. Thread the two bolts 9 into the threaded holes 8 on the two cylindrical protrusions 3 respectively, and thread the nuts 10 onto the lower ends of the bolts 9, so that the nuts 10 abut against and press the lower ends of the cylindrical protrusions 3, effectively connecting and fixing the arc-shaped bracket 1 and the mounting seat 2. Instead of welding for fixation, the structure is simple and convenient for disassembly and replacement. The two hydraulic buffers 11 are fixedly installed between the mounting seat 2 and the U-shaped seat 5, and the annular protective block 12 is fixed to the lower end of the U-shaped seat 5, so that the annular protective block 12 sleeves the two hydraulic buffers 11. Thus, the annular protective block 12 made of wear-resistant rubber cooperates with the two hydraulic buffers 11 to provide buffer protection for the U-shaped seat 5 and the pulley 7, extending the service life of the U-shaped seat 5 and the pulley 7.

[0026] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A detachable cable pulley, comprising an arc-shaped bracket (1), characterized in that, The upper end of the arc-shaped bracket (1) is provided with a mounting seat (2). Columnar protrusions (3) are provided on the side walls at the front and rear ends of the central position of the arc-shaped bracket (1). U-shaped protrusions (4) are provided on the side walls at the front and rear ends of the central position of the mounting seat (2). The columnar protrusions (3) are threadedly connected with the U-shaped protrusions (4). A U-shaped seat (5) is provided directly above the mounting seat (2). A buffer assembly is provided between the mounting seat (2) and the U-shaped seat (5). Two fixed shafts (6) are horizontally penetrated through the opposite side walls near the upper end of the U-shaped seat (5). The two fixed shafts (6) are respectively arranged near the left and right sides of the U-shaped seat (5). Pulley (7) is fixedly installed at both the front and rear ends of the two fixed shafts (6) outside the U-shaped seat (5).

2. The detachable cable pulley according to claim 1, wherein The columnar protrusion (3) is integrally formed with the arc-shaped bracket (1).

3. The detachable cable pulley according to claim 1, wherein The cross-section of the mounting seat (2) is trapezoidal. The U-shaped protrusion (4) is integrally formed with the mounting seat (2).

4. The detachable cable pulley according to claim 1, wherein, Threaded holes (8) are vertically communicated on both of the two columnar protrusions (3). Bolts (9) are vertically penetrated through the horizontal sections of the two U-shaped protrusions (4). The two bolts (9) are respectively threadedly connected with the two threaded holes (8). Nuts (10) are threadedly sleeved at one ends of the two bolts (9) outside the threaded holes (8). The nuts (10) are abutted and pressed against the lower ends of the columnar protrusions (3).

5. The detachable cable pulley according to claim 1, wherein The buffer assembly includes a hydraulic buffer (11) fixedly installed at the upper end of the mounting seat (2) and an annular protection block (12) fixedly connected to the lower end of the U-shaped seat (5). The two hydraulic buffers (11) are both located inside the annular protection block (12) and are respectively arranged near the left and right sides of the mounting seat (2). The annular protection block (12) is arranged opposite to the mounting seat (2).

6. The detachable cable pulley according to claim 5, wherein, The annular protection block (12) is made of wear-resistant rubber.

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