CN205603092U - Portable loop wheel machine - Google Patents

Abstract

The utility model relates to a portable crane, which solves the problem of transporting and loading small objects that are difficult to be completed by manual physical strength in the construction process of high-rise buildings. A suspender is connected between them, and the end of the suspender is fixed on the counterweight frame and is equipped with a rope retractor. The counterweight frame is provided with several vertically arranged counterweight bars, and several counterweight blocks are installed on the counterweight bar. ; The suspender is formed by socketing the front rod and the rear rod. All components are assembled and connected, light, easy to disassemble, easy to transfer as a whole, the extension length of the boom, counterweight and other parameters can be adjusted, the operation is safe and reliable, and the production is simple. It is suitable for various complex terrains such as high-rises, compartments, and bridge decks. 1. Hoisting construction of small objects in narrow construction sites.

Description

A portable crane

technical field

The utility model relates to construction engineering equipment technology, in particular to a portable crane.

Background technique

In the process of various high-rise buildings, it is often necessary to lift light and small objects. These are light in weight but cannot or are difficult to transport and load with the physical strength of the construction workers. Therefore, some simple cranes are designed for auxiliary use. The existing ones This device has many designs, and the structural features have their own characteristics. For example, the patent publication number is CN101759116A, a simple manual crane, the bracket is connected to the column in rotation, a pulley block is fixed at the front end of the bracket, one end of the steel rope is wound on the pulley block, and the other end is wound on the collection line through the fixed pulley fixed on the bracket. On the disk, the hub disk is movably connected with the support, and the rear end of the support is provided with a counterweight. Another example is that the patent publication number is CN104743464A, a mobile simple crane, including a vehicle frame, a hub, a rocker, a first fixed pulley, a steel rope, a counterweight, a column, a nut, a bracket, a cross bar, a pulley block, and a fixed pulley , brakes, rivets, fastening devices and wheels, the wheels are installed on the frame, the brakes are fixed on the wheels, the hub is installed on the far right side of the frame, the rocker is installed on the hub, the first fixed pulley is installed On the frame, the counterweight is installed on the crossbar, the crossbar is fixed on the upright, the pulley block is fixed on the right side of the crossbar, the second fixed pulley is fixed in the middle of the crossbar, the upright is fixed on the frame, and one end of the bracket is fixed On the column, the other end is fixed on the cross bar. Another example is that the patent notification number is CN203682942U, a combined simple crane comprising a base on which a counterweight, a pole, a pulley, and an electric hoist are arranged, the base is provided with a rotating disc, and the rotating disc and the chassis are provided with engaging rotating teeth; The rotating disc is provided with a sliding track, and the track is provided with an electric winch that can slide along the track; the rotating disc is hinged to the support rod, and a folding rod I and a folding rod II are arranged between the supporting rod and the electric winch.

Contents of the invention

The purpose of this utility model is to solve the problem of transporting and loading small objects that are difficult to complete by manual physical strength during the construction of high-rise buildings, and provide a portable crane with reasonable structural design, convenient disassembly and assembly, adaptability to various environments, and simple operation.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a portable crane, including a counterweight frame and a support frame, and is characterized in that a crane is connected between the counterweight frame and the support frame. Rod, the tail end of the boom is fixed on the counterweight frame and is provided with a rope retractor, the counterweight frame is provided with a number of vertically arranged counterweight bars, and a number of counterweight blocks are installed on the counterweight bar; The rod is formed by socketing a front rod and a rear rod. This technical solution is used under complex terrain conditions such as roofs and shelves in the construction of high-rise buildings, and considers multiple factors such as its movement, disassembly, operation, and safety, and reasonably decomposes the entire crane. It is a separate component, which is safely connected through a fixed sleeve and other interfaces. The boom is also made of front, rear or multi-section single rod sockets. The counterweight can also be selectively configured according to the actual lifting weight. After determining a support point, the length of the boom at the front end of the support frame can be adjusted to meet the protruding position of the electric hoist (pulley block). The device can be equipped with an electric drive device or can be manually operated, and the labor-saving configuration can be performed as long as the structure of the pulley block is changed.

Preferably, the top of the support frame is provided with a fixing sleeve of the front pole, and a mast is arranged above the fixing sleeve. In actual application, the mast and the fixing sleeve are integrated, and then the fixing sleeve is fixed on the support frame with bolts.

Preferably, the top of the mast is provided with a cable support wheel, the front end of the cable is fixed on the front end of the boom, and the tail end of the cable is positioned on the tensioner at the tail of the boom. The cable is one of the safety measures of the device, and the length of the cable can be adjusted by the tensioner to meet the actual length requirement of the boom.

As a preference, a pulley block is provided under the front end of the boom, a steel wire rope guide wheel is provided at the middle part of the top of the support frame, and the tail end of the steel wire rope is connected to the rope retractor. In this device, the rope receiving device is arranged at the tail of the boom, which is also used as a part of the counterweight, and the wire rope guide wheel ensures that the pulley block works at the midline position of the boom. The pulley block can also directly use the electric hoist.

As a preference, both the front rod and the rear rod are of square tube structure, several sets of fasteners are provided at the socket parts of the front rod and the rear rod, and length scale lines are provided between the parts of several groups of fasteners. Safely adjust boom length.

As a preference, the said rope retractor is equipped with a drive motor and equipped with a manual emergency brake device.

The beneficial effects of the utility model are: each component is assembled and connected, light, easy to disassemble, convenient to transfer as a whole, the extension length of the boom, counterweight and other parameters can be adjusted, the operation is safe and reliable, and the production is simple, suitable for various high-rise, Hoisting construction of small objects in construction sites with complex terrain and narrow locations such as interlayers and bridge decks.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is a left view structural diagram of Fig. 1 of the utility model.

Fig. 3 is a schematic diagram of a partially enlarged structure at M in Fig. 2 of the present invention.

In the figure: 1. Counterweight frame, 2. Counterweight pole, 3. Rope take-up, 4. Tensioner, 5. Rear pole, 6. Cable, 7. Mast, 8. Front pole, 9. Pulley block, 10 . Support frame, 11. Counterweight, 12. Fasteners, 13. Wire rope guide wheel.

detailed description

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Referring to Fig. 1, a portable crane in this embodiment is provided with a counterweight frame 1, a support frame 10 arranged parallel to the counterweight frame 1, the counterweight frame 1 has a square base, and the base is provided with four vertically arranged The counterweight bar 2 is installed on the counterweight bar 2 according to the actual lifting weight, as shown in Figure 3.

A suspender is connected between the counterweight frame 1 and the support frame 10. The suspender is formed by socketing the front pole 8 and the rear pole 5. Both the front pole 8 and the rear pole 5 are square tube structures. The front pole 8 and the rear pole 5 There are three sets of fasteners 12 on the socket, each set of fasteners 12 is provided with at least two fastening screws on one side of the square tube, and there are length scale lines between the three sets of fasteners 12 to facilitate length adjustment .

The top of the support frame 10 is provided with a fixed sleeve 12 of the front rod 8, that is, the front rod 8 is passed through the fixed sleeve 12, and then fastened with a fixing bolt. A mast 7 is welded on the top of the fixing sleeve 12, the top of the mast 7 is provided with a guide support wheel for the cable 6, the front end of the cable 6 is fixed on the ring provided at the front end of the boom, and the tail end of the cable 6 is wound and positioned at the tail of the boom On the tensioner 4, the tensioner 4 can lock and adjust the length of the cable.

The tail end of the boom is fixed on the counterweight frame and is equipped with an electric rope receiving device 3, and is provided with a manual emergency braking device.

Below the front end of the boom is a pulley block 9, and the middle part of the top of the support frame 10 is also provided with a wire rope guide wheel 13. As shown in Figure 2, the wire rope guide wheel 13 is located below the fixed sleeve 12, the front end of the wire rope is connected with the pulley block, and the tail end of the wire rope Connect with electric rope drawer 3.

During use, fix the support frame 10 and the counterweight frame 1 at the lifting point, add the counterweight 11, and connect the power supply to operate. When transposition transfer is required, all parts are disassembled and then transferred to the next lifting point for installation.

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any structure after simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (6)

1. A portable crane, comprising a counterweight frame (1) and a support frame (10), characterized in that a boom is connected between the counterweight frame and the support frame, and the tail end of the boom is fixed on the counterweight frame. The weight frame is also provided with a rope retractor (3), and a number of vertically arranged counterweight bars (2) are arranged on the counterweight frame, and several counterweight blocks (11) are arranged on the counterweight bar; It is formed by socketing a front rod (8) and a rear rod (5). 2. A portable crane according to claim 1, characterized in that the top of the support frame (10) is provided with a fixing sleeve (12) of the front pole (8), and a mast (7) is arranged above the fixing sleeve ). 3. A portable crane according to claim 2, characterized in that the top of the mast (7) is provided with a support wheel for a cable (6), the front end of the cable is fixed on the front end of the boom, and the tail of the cable The end is positioned on the tensioner (4) at the end of the boom. 4. A portable crane according to claim 1, 2 or 3, characterized in that a pulley block (9) is provided under the front end of the boom, and a wire rope guide is provided at the middle part of the top of the support frame (10) Wheel (13), the tail end of wire rope is connected with rope retractor (3). 5. A portable crane according to claim 1, 2 or 3, characterized in that the front pole (8) and the rear pole (5) are square tube structures, and the front pole and the rear pole are socketed Several groups of fasteners (12) are arranged at the parts, and length scale lines are arranged between the parts of the several groups of fasteners. 6. A portable crane according to claim 1, 2 or 3, characterized in that said rope receiving device (3) is equipped with a driving motor and is equipped with a manual emergency brake device.