Movable lifting device for narrow space

Abstract

The utility model provides a movable hoisting device for a narrow space, which relates to the technical field of hoisting devices and comprises a movable foundation, a steering mechanism, a telescopic suspension arm, a lifting hook and a winch, wheel sets are arranged on the movable foundation, the steering mechanism is mounted on the movable foundation, the telescopic suspension arm is connected with the steering mechanism, the lifting hook is connected with a sling, and the winch is connected with the lifting hook. The sling is connected with the winch, hoisting work of construction materials is achieved through the steering mechanism, the telescopic lifting arm, the lifting hook and the winch, transportation of the materials in a narrow space is achieved, a balance weight system is arranged in the movable foundation, and the balance weight system comprises a balance weight chamber arranged in the movable foundation, a discharge valve connected with the balance weight chamber and a filling port. The balance weight material can be added into the balance weight chamber through the filling port, the balance weight material is liquid or flowing solid, the balance weight material in the balance weight chamber can be discharged through the discharging valve, the balance weight material can be conveniently added and removed, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist device technical field especially a movable hoist device for narrow space. BACKGROUND

[0002] Concrete gravity dam, especially water conservancy hub engineering with pump, power station plant and other building structures, construction warehouse surface is often more, and pump, power station plant is multistory frame structure, when multiple working surfaces are simultaneously constructed, large hoisting equipment such as portal crane arranged at construction site often cannot cover all warehouse surfaces, due to traffic limitation, narrow operation space, large height difference between working surfaces and other reasons, truck crane cannot also enter such space operation.

[0003] Due to the above reasons, part of construction materials, machines and tools can only be hoisted or manually transported by fixed hoist installed at the wellhead of hoisting well, when encountering narrow, insufficient height operation area, only crowbar or rope pulling can be used, this method is high in labor intensity, time-consuming, laborious and extremely unsafe, aiming at the above defects, the application is proposed. UTILITARIAN CONTENT

[0004] The utility model aims at providing a movable hoist device for narrow space for narrow, short distance, frequent and intensive hoisting operation, solving the material transportation problem in narrow space.

[0005] To solve the above problems, the utility model provides a movable hoist device for narrow space, which comprises a movable base, a steering mechanism, a telescopic hoist arm, a lifting hook and a hoist, a wheel set is arranged on the movable base, the steering mechanism is installed on the movable base, the telescopic hoist arm is connected with the steering mechanism, the lifting hook is connected with a lifting rope, and the lifting rope is connected with the hoist, the telescopic hoist arm, the lifting hook and the hoist are used to realize the hoisting of construction materials, realize the transportation of materials in narrow space, a counterweight system is arranged in the movable base, the counterweight system comprises a counterweight chamber arranged in the movable base, a discharge valve connected with the counterweight chamber and a filling port, the counterweight material can be added to the counterweight chamber through the filling port, the counterweight material is liquid or flowable solid, the counterweight material in the counterweight chamber can be discharged through the discharge valve, the addition and removal of the counterweight material are facilitated, and the labor intensity of workers is reduced.

[0006] According to an embodiment of the utility model, a counterweight block placing area is arranged in the counterweight chamber, a cover plate for closing the counterweight chamber is installed at the counterweight chamber, the counterweight block placing area is opened after the cover plate is opened, when it is inconvenient to add liquid or flowable solid, metal or stone block-shaped articles can be placed in the counterweight block placing area for counterweight.

[0007] According to an embodiment of the utility model, the movable base is provided with a brake system, the brake system is used for cooperating with the wheel set, the brake system can adopt drum brake or disc brake, and is used for fixing the position of the device.

[0008] According to an embodiment of the utility model, the steering mechanism comprises a steering shaft, and the direction of the telescopic boom is adjusted by rotating the steering shaft.

[0009] According to an embodiment of the utility model, the steering mechanism further comprises an electric driving system, the electric driving system is used for driving the rotation of the steering shaft, for example, a motor is matched with a gear reduction box and a gear transmission system to realize the electric driving of the steering shaft.

[0010] According to an embodiment of the utility model, an annular operation frame is arranged on the steering shaft, the operation frame is mounted on the steering shaft, the operation frame can be manually operated to rotate the steering shaft and control steering.

[0011] According to an embodiment of the utility model, the steering mechanism further comprises a locking mechanism, the locking mechanism is used for fixing the steering shaft, the locking mechanism can adopt a structure similar to the brake system, for example, a brake pad is abutted or clamped to the steering shaft to realize angle locking, or a motor with self-locking function is used to realize locking, or a bolt, a friction block or a bolt is used to abut or insert the steering shaft to realize fixing.

[0012] According to an embodiment of the utility model, the filling port is arranged on the cover plate.

[0013] According to an embodiment of the utility model, the cover plate is of rotary opening or separation opening.

[0014] According to an embodiment of the utility model, the counterweight material comprises water or fine sand.

[0015] The utility model discloses a device structure is simple, can realize in the operation area is relatively small, short distance, frequently used, intensive hoisting operation, thereby reduces the labor intensity of personnel, improves material handling safety, and, the counterweight mode of the equipment can utilize water or fine sand to realize counterweight, and the addition and removal of counterweight material are convenient and labor-saving, and the working efficiency can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further explained in connection with the drawings and embodiments.

[0017] Figure 1 It is the whole structural schematic drawing of movable hoist device for narrow space;

[0018] Figure 2 It is the structural schematic drawing of movable base. DETAILED DESCRIPTION

[0019] The following description is only used to disclose the utility model to enable those skilled in the art to implement the utility model. The examples in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other embodiments, modification schemes, improvement schemes, equivalent schemes and other schemes without departing from the spirit and scope of the utility model.

[0020] Example 1:

[0021] A movable hoisting device for narrow space, such as Figure 1 , comprising a movable base 1, a steering mechanism, a telescopic boom 5, a lifting hook 9 and a winch 8.

[0022] The movable base 1 is provided with a wheel set 11, the wheel set 11 comprises at least four groups of moving wheels, the movable base 1 is provided with a brake system 13, the brake system 13 is used for cooperating with the wheel set 11, the brake system 13 can adopt a drum brake or a disc brake, and the brake system 13 is used for realizing the fixation of the position of the device. The movable base 1 adopts a frame box structure, and a steel support base 10 is installed on the upper side.

[0023] The steering mechanism comprises a steering shaft 6, the steering shaft 6 is rotatably installed on the steel support base 10, the telescopic boom 5 is connected with the steering shaft 6, the direction of the telescopic boom 5 is adjusted by rotating the steering shaft 6, the lifting hook 9 is connected with a lifting rope 12, the lifting rope 12 is connected with the winch 8, the telescopic boom 5 adopts electric drive, and a power line 3 supplies power to the winch 8 and the telescopic boom 5. When in use, the power line 3 is connected with a construction power supply, the opening and closing of the system are controlled through a control switch 4, the winch 8 and the telescopic boom 5 can be controlled through the buttons arranged on the device, or remote control can be realized through the arrangement of a remote control module.

[0024] The steering mechanism further comprises an electric drive system 20, the electric drive system 20 is used for driving the steering shaft 6 to rotate, for example, a motor is matched with a gear reduction box and a gear transmission system to realize the electric drive of the steering shaft 6.

[0025] The hoisting work of construction materials is realized through the steering mechanism, the telescopic boom 5, the lifting hook 9 and the winch 8, and the transportation of materials in narrow space is realized.

[0026] As Figure 2The movable base 1 is provided with a counterweight system 2, which comprises a counterweight chamber 14 provided in the movable base 1, a discharge valve 18 and a filling port 16 connected with the counterweight chamber 14. The counterweight chamber 14 is a closed cavity of the movable base 1, and the counterweight material such as water or fine sand can be added into the counterweight chamber 14 through the filling port 16. The counterweight material is preferably water. In the construction site, the water pipe is connected with the filling port 16, and the corresponding amount of water is injected into the counterweight chamber 14 to realize the counterweight. When the equipment needs to be transferred, the water in the counterweight chamber 14 can be discharged through the discharge valve 18. In this way, the addition and removal of the counterweight material are convenient and labor-saving, and the labor intensity of the workers is reduced.

[0027] Preferably, the counterweight chamber 14 is provided with a counterweight block placement area 19. When it is not convenient to add water or fine sand, metal or stone block-shaped objects can be placed in the counterweight block placement area 19 to realize the counterweight. Figure 2 The counterweight chamber 14 is provided with a cover plate 15 for closing the counterweight chamber 14. The filling port 16 is arranged on the cover plate 15. The cover plate 15 is rotatably installed on the movable base 1 by means of a hinge. After the cover plate 15 is opened, the counterweight block placement area 19 is opened, and the counterweight block can be placed in the counterweight block placement area 19.

[0028] Embodiment 2:

[0029] On the basis of embodiment 1, the steering shaft 6 is provided with an annular operation frame 7. The operation frame 7 is installed on the steering shaft 6, and the steering shaft 6 can be rotated by manually operating the operation frame 7 to control the steering.

[0030] Embodiment 3:

[0031] Different from embodiment 1, in this embodiment, the steering shaft 6 is provided with an annular operation frame 7, and the electric driving system 20 is not arranged. The rotation is realized only by manual control.

[0032] Embodiment 4:

[0033] On the basis of any one of embodiments 1-3, this embodiment comprises a locking mechanism for fixing the steering shaft 6. The locking mechanism can adopt a structure similar to a brake system, such as a brake pad abutting against or tightly holding the steering shaft 6 to realize angle locking. The locking mechanism can also adopt a motor with a self-locking function to realize locking. The locking mechanism can also realize fixing by abutting against or inserting the steering shaft 6 through the arrangement of bolts, friction blocks, latches and the like.

[0034] According to the construction needs, the hoisting device is manually pushed to the working area, and after reaching the specified position, the movable base 1 is locked. According to different hoisting objects, the appropriate counterweight is selected and placed in the counterweight chamber 14. The power line 3 is connected with the construction power supply on site. The telescopic boom 5 is adjusted to the appropriate length through the control switch 4. The hook 9 is lowered to the hoisting point position by starting the winch 8. The object is hoisted by the personnel below.

[0035] After the object is hoisted to the appropriate height of the upper platform, the winch 8 is closed, the lock of the steering shaft 6 is released, the telescopic boom 5 is rotated to above the platform, after rotating to the appropriate position, the steering shaft 6 is locked again, the winch 8 is started to lower the object to the upper platform. Then the lock of the steering shaft 6 is released, the above steps are repeated until the hoisting work at this position is completed.

[0036] After the hoisting work is completed, the telescopic boom 5 is retracted, the power is turned off, the power cord 3 is unplugged, the lock of the movable base 1 is released, and the movable base 1 is manually moved to the next work point for construction.

[0037] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the implementation of the utility model can have any deformation and modification without departing from the principle.

Claims

1. A portable hoist for use in confined spaces characterised in that: The system includes a movable base (1), a steering mechanism, a telescopic boom (5), a hook (9), and a winch (8). The movable base (1) is equipped with a wheel set (11). The steering mechanism is installed on the movable base (1). The telescopic boom (5) is connected to the steering mechanism. The hook (9) is connected to the sling (12). The sling (12) is connected to the winch (8). The movable base (1) is equipped with a counterweight system (2). The counterweight system (2) includes a counterweight chamber (14) in the movable base (1), a discharge valve (18) connected to the counterweight chamber (14), and a filling port (16). Counterweight material can be added to the counterweight chamber (14) through the filling port (16). The counterweight material in the counterweight chamber (14) can be discharged through the discharge valve (18).

2. The mobile hoisting device for tight spaces of claim 1, wherein: The counterweight chamber (14) is provided with a counterweight block placement area (19). A cover plate (15) for closing the counterweight chamber (14) is installed at the counterweight chamber (14). After the cover plate (15) is opened, the counterweight block placement area (19) is opened.

3. Mobile lifting device for narrow spaces according to claim 1 or 2, characterized in that: A braking system (13) is installed on the movable base (1), the braking system (13) being used in conjunction with the wheelset (11).

4. The mobile hoisting device for tight spaces of claim 3, wherein: The steering mechanism includes a steering shaft (6).

5. The movable lifting device for confined spaces according to claim 4, characterized in that: The steering mechanism also includes an electric drive system (20) for driving the steering shaft (6) to rotate.

6. The movable lifting device for confined spaces according to claim 4 or 5, characterized in that: The steering shaft (6) is provided with an annular operating frame (7).

7. The movable lifting device for confined spaces according to claim 4 or 5, characterized in that: The steering mechanism also includes a locking mechanism for fixing the steering shaft (6).

8. The movable lifting device for confined spaces according to claim 2, characterized in that: The filling port (16) is located on the cover plate (15).

9. The movable lifting device for confined spaces according to claim 8, characterized in that: The cover plate (15) can be opened by rotation or by separation.

10. The movable lifting device for confined spaces according to claim 8 or 9, characterized in that: The counterweight material includes water or fine sand.

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