Semi-automatic small building crane

Abstract

The invention discloses a semi-automatic small building crane which comprises a base frame, a tripod, a rotating frame, a horizontal table, an electric cable unit, a hoisting support, a hoisting roller, a cable stabilizing frame, a hoisting ring and a barrel hoisting frame. The hoisting roller is positioned and mounted at the top of the hoisting support, and the cable stabilizing frame is fixedly mounted at the front end of the hoisting roller through a bolt; according to the semi-automatic small building crane, a steel wire cable penetrates through a mounting frame on a cable stabilizing frame and the inner side of a cable limiting frame, a guide rotating roller has the effects of limiting and guiding the cable, a barrel-shaped building material is vertically hoisted by the barrel hoisting frame, and the electric cable unit is fixedly installed on a hoisting ring at the top of the barrel hoisting frame. The tensioning connecting rod is placed on the inner diameter of the barrel, the lifting ring lifts the moving sleeve and then pulls the cable to pull the tensioning connecting rod to be opened to clamp the inner wall, safe lifting is achieved, when loosening is needed, the limiting hanging rod moves to the position below the guiding circular truncated cone through the guiding circular truncated cone to be clamped, at the moment, the traction cable is in a loose state, and the tensioning connecting rod resets and breaks away from the inner diameter of the barrel.

Description

Technical Field

[0001] The invention relates to a semi-automatic small-sized construction crane, belonging to the technical field of construction equipment. Background Art

[0002] The advantages of small construction cranes are simple structure, small size and light weight. Since its introduction, it has been widely welcomed. In order to meet market demand, crane manufacturers have developed more convenient small cranes, light cargo cranes and household cranes based on folding light cranes and hand-cranked lifting cranes. For hoisting cranes used on construction sites, the traction wire cable is prone to irregular swing when hoisting at a certain height. The traditional hoisting process of cylindrical building materials requires the use of a U-shaped special bracket to place the cylinder horizontally before hoisting, and cannot achieve direct hoisting in the vertical direction. Summary of the invention

[0003] The object of the present invention is to provide a semi-automatic small construction crane to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a semi-automatic small construction crane, including a base frame, a tripod, a rotating frame, a horizontal platform, an electric cable unit, a lifting bracket, a lifting roller, a cable stabilizer frame, a lifting ring, and a cylinder lifting frame. The lifting roller is positioned and installed at the top of the lifting bracket, and the cable stabilizer frame is fixedly installed with bolts at the front end of the lifting roller. The electric cable unit is fixedly installed with the lifting ring on the top of the cable cylinder lifting frame.

[0005] Preferably, the cable stabilizing frame consists of an upper mounting frame, a stabilizing link, side positioning bolts, a cable limiting frame and a guide roller. The upper and lower ends of the stabilizing link are fixedly installed with the upper mounting frame and the cable limiting frame by side positioning bolts, and the cable limiting frame is positioned with the guide roller by a rotating shaft.

[0006] Preferably, the cylinder lifting frame is composed of a center connecting rod, a cross, a tensioning connecting rod, an escape table, a guide table, a limit hanging rod, a moving sleeve and a traction cable. A cross is positioned and welded on the bottom of the center connecting rod, and the cross pin hole and the tensioning connecting rod pin hole are positioned and installed by bolts. A escape table and a guide table are positioned and welded on the upper end of the center connecting rod in sequence, and a moving sleeve is sleeved on the outer diameter of the upper end of the center connecting rod. A limit hanging rod is positioned and installed at the center of the moving sleeve, and a traction cable fixedly installed at the upper end of the moving sleeve is linked to the tail end of the tensioning connecting rod.

[0007] Preferably, the tensioning link is composed of an L-shaped bracket, a triangular reinforcement plate and a clamping cross plate, and the clamping cross plate is installed at the bottom of the vertical plate body of the L-shaped bracket by positioning welding with the triangular reinforcement plate.

[0008] Preferably, the limit hanging rod is composed of a mounting sleeve, a mounting frame, a vertical connecting rod and a hanging block. The outer diameter of the mounting sleeve is cross-shaped and welded with a mounting frame. The mounting frame is fixed with a vertical connecting rod by bolts, and the bottom of the vertical connecting rod is vertically welded with a hanging block.

[0009] Preferably, a rubber gasket is fixedly mounted on the outer end surface of the clamping horizontal plate by glue.

[0010] Preferably, the escape truncated table can move up and down a certain distance, and the guide truncated table is fixedly installed.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The cable stabilizing frame is composed of an upper mounting frame, a stabilizing connecting rod, a side positioning bolt, a cable limiting frame and a guide roller. The upper and lower ends of the stabilizing connecting rod are fixedly installed with the upper mounting frame and the cable limiting frame by the side positioning bolts. The cable limiting frame is installed with a guide roller through a rotating shaft. The cable passes through the hoisting roller and then passes through the upper mounting frame and the cable limiting frame in sequence. When the steel wire cable is in a taut state, it is easy to swing when hoisting objects. The upper mounting frame and the cable limiting frame are installed to limit the swing of the cable during the lifting process. The guide roller has the function of limiting and guiding the cable. The cylinder lifting frame is composed of a central connecting rod, a cross, a tensioning connecting rod, a release table, a guide table, a limit hanging rod, a moving sleeve and a traction cable. The cylinder lifting frame vertically lifts the cylindrical building materials. The tensioning connecting rod is placed in the inner diameter of the cylinder. After the lifting ring lifts the moving sleeve, the traction cable pulls the tensioning connecting rod to open and clamp the inner wall for safe lifting. When it needs to be released, the limit hanging rod moves through the guide table to the position below the guide table and clamps it. At this time, the traction cable is relaxed, and the tensioning connecting rod resets and disengages from the inner diameter of the cylinder to complete the safe release. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the semi-automatic small construction crane of the present invention; Figure 2 It is a schematic diagram of the installation structure of the semi-automatic small construction crane of the present invention; Figure 3 It is a structural schematic diagram of the cable stabilizing frame of the present invention; Figure 4 It is a structural schematic diagram of the cylinder hanging frame of the present invention; Figure 5 It is a schematic diagram of the installation structure of the escape truncated table and the guide truncated table of the present invention; Figure 6 It is a structural schematic diagram of the tensioning connecting rod of the present invention; Figure 7 It is a schematic structural diagram of the position-limiting hanging rod of the present invention.

[0013] In the figure: 1, base frame, 2, tripod, 3, rotating frame, 4, horizontal platform, 5, electric cable unit, 6, lifting bracket, 7, lifting roller, 8, cable stabilizing frame, 9, lifting ring, 10, cylinder lifting frame, 11, upper mounting frame, 12, stabilizing connecting rod, 13, side positioning bolt, 14, cable limiting frame, 15, guide roller, 16, center connecting rod, 17, cross, 18, tensioning connecting rod, 19, escape round table, 20, guide round table, 21, limiting hanging rod, 22, moving sleeve, 23, traction cable, 24, L-shaped bracket, 25, triangular reinforcement plate, 26, clamping horizontal plate, 27, mounting sleeve, 28, mounting frame, 29, vertical connecting rod, 30, hanging block. DETAILED DESCRIPTION The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] like Figure 1-Figure 7 As shown, a semi-automatic small construction crane comprises a base frame 1, a tripod 2, a rotating frame 3, a horizontal platform 4, an electric cable unit 5, a lifting bracket 6, a lifting roller 7, a cable stabilizing frame 8, a lifting ring 9, and a cylinder lifting frame 10. The base frame 1 positions and installs the rotating frame 3 through the tripod 2, and the horizontal platform 4 is horizontally positioned and installed at the rear end position of the top of the rotating frame 3. The electric cable unit 5 is fixedly installed on the surface of the horizontal platform 4, the rotating frame 3 is welded and installed at an oblique angle, the lifting bracket 6 is positioned and installed at the top position of the lifting bracket 6, and the cable stabilizing frame 8 is bolted and installed at the front end position of the lifting roller 7, and the electric cable unit 5 is fixedly installed with the lifting ring 9 on the top of the cable cylinder lifting frame 10.

[0015] The cable stabilizing frame 8 is composed of an upper mounting frame 11, a stabilizing link 12, a side positioning bolt 13, a cable limiting frame 14 and a guide roller 15. The upper and lower ends of the stabilizing link 12 are fixedly installed with the upper mounting frame 11 and the cable limiting frame 14 by the side positioning bolts 13. The cable limiting frame 14 is positioned and installed with the guide roller 15 through the rotating shaft. The upper mounting frame 11 and the cable limiting frame 14 are arranged to limit the swing of the cable during the lifting process, and the guide roller 15 has the function of limiting and guiding the cable.

[0016] The cylinder hoisting frame 10 is composed of a central connecting rod 16, a cross 17, a tensioning connecting rod 18, a relief round platform 19, a guide round platform 20, a limit hanging rod 21, a motion sleeve 22 and a traction cable 23. The bottom of the central connecting rod 16 is positioned and welded with a cross 17, and the pin hole of the cross 17 and the pin hole of the tensioning connecting rod 18 are positioned and installed by bolts. The upper end of the central connecting rod 16 is sequentially positioned and welded with a relief round platform 19 and a guide round platform 20. The upper end of the central connecting rod 16 is provided with a motion sleeve 22 on the outer diameter. A limit hanging rod 21 is installed at the center position of the sleeve 22, and a traction cable 23 fixedly installed at the upper end of the moving sleeve 22 is installed in linkage with the tail end of the tensioning link 18. After the lifting ring 9 lifts the moving sleeve 22, the traction cable 23 pulls the tensioning link 18 to open and clamp the inner wall for safe lifting. When it needs to be released, the limit hanging rod 21 moves to the position below the guide table 20 through the guide table 20 and clamps it. At this time, the traction cable 23 is in a relaxed state, and the tensioning link 21 is reset by gravity to break away from the inner diameter of the cylinder, completing safe separation.

[0017] The tensioning link 18 is composed of an L-shaped bracket 24, a triangular reinforcement plate 25 and a clamping cross plate 26. The L-shaped bracket 24 is vertically mounted at the bottom of the plate body through the triangular reinforcement plate 25 for positioning and welding, and the clamping cross plate 26 is used to stably clamp the inner wall of the cylinder during hoisting.

[0018] The limit hanging rod 21 is composed of a mounting sleeve 27, a mounting frame 28, a vertical connecting rod 29 and a hanging block 30. The outer diameter of the mounting sleeve 27 is cross-shaped and welded with a mounting frame 28. The mounting frame 28 is fixed with a vertical connecting rod 29 by bolts. The bottom of the vertical connecting rod 29 is vertically welded with a hanging block 30. The hanging block 30 moves to the position below the guide table 20 and is clamped. At this time, the traction cable 23 is in a relaxed state.

[0019] A rubber gasket is fixedly mounted on the outer end surface of the clamping horizontal plate 26 by glue to improve contact friction.

[0020] The escape table 19 can move up and down a certain distance, and the guide table 20 is fixedly installed. When the limit hanging rod 21 is operated incorrectly, it moves to the escape table 19. Since the escape table 19 can move up and down a certain distance, it cannot be mounted and randomly detaches from the table. Then the limit hanging rod 21 is operated to move along the guide table 20 until the limit hanging rod 21 is stably mounted and clamped. The operator needs to lift the lifting bracket 6 up and down reciprocatingly to complete the safe lifting and stable loosening of the cylindrical building materials.

[0021] Specific usage: A semi-automatic small construction crane, an electric cable unit cooperates with the steel wire cable for lifting operations, the steel wire cable passes through the upper mounting frame of the cable stabilizing frame and the inner side of the cable limit frame, the upper mounting frame and the cable limit frame are provided with guide rollers to limit the swing of the cable during the lifting process, which have the function of limiting and guiding the cable, the cylinder lifting frame vertically lifts the cylindrical building materials, the tensioning link is placed in the inner diameter of the cylinder, and the cable is pulled after the lifting ring lifts the moving sleeve to open and clamp the inner wall for safe lifting. When it needs to be released, the limit hanging rod moves through the guide table to the position below the guide table to clamp it. At this time, the traction cable is in a relaxed state, and the tensioning link is reset and separated from the inner diameter of the cylinder.

[0022] The trapped circular table can move up and down a certain distance, and the guide circular table is fixedly installed. When the limit hanging rod is operated incorrectly, it will move to the escape circular table. Since the escape circular table can move up and down a certain distance, it cannot be mounted and will randomly detach from the table. Then the limit hanging rod is operated to move along the guide circular table until the limit hanging rod is stably hung and clamped. The operator is required to lift the lifting bracket up and down reciprocatingly to complete the safe lifting and stable loosening of the cylindrical building materials.

[0023] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A semi-automatic small construction crane, characterized in that: The utility model comprises a base frame (1), a tripod (2), a rotating frame (3), a horizontal platform (4), an electric cable machine unit (5), a lifting bracket (6), a lifting roller (7), a cable stabilizing frame (8), a lifting ring (9), and a cylinder lifting frame (10). The base frame (1) positions and installs the rotating frame (3) through the tripod (2). The horizontal platform (4) is horizontally positioned and installed at the rear end position of the top of the rotating frame (3). The electric cable machine unit (5) is fixedly installed on the table top of the horizontal platform (4). The rotating frame (3) is welded and installed at an oblique angle. The lifting roller (7) is positioned and installed at the top position of the lifting bracket (6). The cable stabilizing frame (8) is bolted and installed at the front end position of the lifting roller (7). The electric cable machine unit (5) is fixedly installed with the lifting ring (9) at the top of the cable cylinder lifting frame (10).

2. A semi-automatic small construction crane according to claim 1, characterized in that: The cable stabilizing frame (8) is composed of an upper mounting frame (11), a stabilizing connecting rod (12), a side positioning bolt (13), a cable limiting frame (14) and a guide roller (15). The upper and lower ends of the stabilizing connecting rod (12) are fixedly mounted with the upper mounting frame (11) and the cable limiting frame (14) via the side positioning bolts (13). The cable limiting frame (14) is positioned and mounted with the guide roller (15) via a rotating shaft.

3. A semi-automatic small construction crane according to claim 1, characterized in that: The cylinder hanging frame (10) is composed of a central connecting rod (16), a cross (17), a tensioning connecting rod (18), a relief truncated platform (19), a guide truncated platform (20), a limit hanging rod (21), a moving sleeve (22) and a traction cable (23). The bottom of the central connecting rod (16) is positioned and welded with a cross (17). The pin hole of the cross (17) and the pin hole of the tensioning connecting rod (18) are positioned and installed by bolts. The upper end of the central connecting rod (16) is sequentially positioned and welded with a relief truncated platform (19) and a guide truncated platform (20). The upper end of the central connecting rod (16) is sleeved with a moving sleeve (22) at the outer diameter. The center position of the moving sleeve (22) is positioned and installed with a limit hanging rod (21). The traction cable (23) fixedly installed at the upper end of the moving sleeve (22) is linked to the tail end of the tensioning connecting rod (18) and is installed.

4. A semi-automatic small construction crane according to claim 3, characterized in that: The tensioning connecting rod (18) is composed of an L-shaped bracket (24), a triangular reinforcement plate (25) and a clamping transverse plate (26); the L-shaped bracket (24) is vertically mounted on the bottom of the plate body by positioning welding through the triangular reinforcement plate (25).

5. A semi-automatic small construction crane according to claim 3, characterized in that: The position-limiting hanging rod (21) is composed of a mounting sleeve (27), a mounting frame (28), a vertical connecting rod (29) and a hanging block (30); the mounting sleeve (27) has a cross-shaped outer diameter and is welded with the mounting frame (28); the mounting frame (28) is fixedly mounted with the vertical connecting rod (29) by bolts; and the bottom of the vertical connecting rod (29) is vertically welded with the hanging block (30).

6. A semi-automatic small construction crane according to claim 4, characterized in that: A rubber gasket is fixedly mounted on the outer end surface of the clamping transverse plate (26) by glue.

7. A semi-automatic small construction crane according to claim 3, characterized in that: The escape truncated platform (19) can move up and down a certain distance, and the guide truncated platform (20) is fixedly installed.

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