Walkable temporary hoist assist device

Abstract

The walking type temporary hoisting auxiliary device comprises a main frame, a walking assembly is installed at the lower end of the main frame, and a longitudinal track is arranged at the upper end of the main frame; a movable hoisting assembly moves forward and backward along the longitudinal track; the movable hoisting assembly comprises a hoisting main beam, longitudinal hoisting wheels are installed at the left and right ends of the hoisting main beam, and the longitudinal hoisting wheels move along the longitudinal track; the hoisting main beam is provided with a transverse track, and the transverse hoisting wheels move along the transverse track; the lower end of the transverse hoisting wheel extends out of the hoisting main beam and is provided with a hoisting shackle, and the hoisting shackle is detachably connected with a hand chain block. The walking type temporary hoisting auxiliary device is convenient to hoist and move.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment, and in particular to a mobile temporary lifting auxiliary device. Background Technology

[0002] During the construction of water conservancy and hydropower projects and municipal engineering projects, materials such as precast concrete cover plates and pipe fittings are frequently transported over short distances. At the same time, small equipment and components such as generators and manhole covers are also temporarily lifted for inspection and maintenance. However, when using traditional cranes, not only is a large investment required, but there are also many limitations due to the insufficient conditions of the construction site to support the operation of large lifting equipment, which to some extent slows down the overall construction progress and reduces construction efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a mobile temporary lifting auxiliary device, which not only solves the problem that small equipment and materials often cannot be lifted and moved by manpower alone due to factors such as weight and volume, but also avoids the problem of high costs incurred by temporarily renting lifting equipment.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A mobile temporary lifting auxiliary device includes a main frame, a traveling component installed at the lower end of the main frame, and a longitudinal rail at the upper end of the main frame; the mobile lifting component moves back and forth along the longitudinal rail. The movable lifting assembly includes a main lifting beam with longitudinal rollers installed on the left and right ends of the main lifting beam, which move along longitudinal rails; the main lifting beam has a transverse rail, with transverse rollers moving along transverse rails; the lower end of the transverse roller extends out of the main lifting beam and is equipped with a lifting shackle, which is detachably connected to a hand chain hoist.

[0005] The main frame includes columns, with longitudinal main beams and transverse main beams fixed at the upper end of the columns. The longitudinal main beams and transverse main beams are fixed at both ends to rectangular frames. The lower end of the columns is reinforced by horizontal and vertical connectors between columns.

[0006] Both transverse main beams are equipped with lifting rings.

[0007] The main frame is made of steel, with the columns made of square steel pipes, the longitudinal and transverse main beams made of channel steel, and the horizontal and vertical connecting parts between columns made of angle steel.

[0008] Both the longitudinal main beam and the hoisting main beam are made of two sets of channel steel welded together, with a gap reserved between the two sets of channel steel.

[0009] The lifting shackle is a D-shaped shackle.

[0010] The walking assembly includes casters, which are mounted on the bottom of the main frame via connecting plates and fixing bolts.

[0011] This utility model provides a mobile temporary lifting auxiliary device, which has the following technical advantages: 1) The steel main frame ensures the structural stability and load-bearing capacity of the device, meeting the complex and ever-changing operational needs of the construction site.

[0012] 2) The mobile lifting assembly consists of a hand-operated hoist, double-bearing casters, and a bidirectional moving track, ensuring the flexibility of this device in lifting within a certain range.

[0013] 3) The design of the walking component allows the device to move flexibly on the construction site. For example, when the equipment needs to be repaired while in a suspended state, the walking component can be used to bring the lifted object closer to the main frame, making it convenient for maintenance personnel to operate from the outside, thus further enhancing its versatility and practicality.

[0014] 4) The device is simple to manufacture, safe to use, and economical. It does not require temporary rental or dispatch of large lifting equipment, resulting in low cost. It has broad application prospects and high promotion value in various construction sites. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a top view of the present invention.

[0016] Figure 2 This is the front view of the present invention.

[0017] Figure 3 This is the left view of the present invention.

[0018] Figure 4 This is a schematic diagram of the hoisting main beam in this utility model.

[0019] Figure 5 This is a cross-sectional view of the hoisting main beam in this utility model.

[0020] Figure 6 for Figure 2 A partial schematic diagram of the mobile lifting system.

[0021] Figure 7 This is a schematic diagram of the working state of this utility model.

[0022] Figure 8 This is a schematic diagram of the working mechanism of the fixture in this utility model.

[0023] Figure 9 This is a schematic diagram of the fixture in this utility model.

[0024] In the diagram: 1. Main frame; 2. Mobile lifting system; 3. Traveling assembly; 4. Lifting object; 1.1. Column; 1.2. Longitudinal main beam; 1.3. Transverse main beam; 1.4. Horizontal connector between columns; 1.5. Vertical connector between columns; 1.6. Lifting ring; 2.1. Longitudinal lifting wheel; 2.2. Lifting main beam; 2.3. Transverse lifting wheel; 2.4. Lifting shackle; 2.5. Hand chain hoist; 3.1. Caster wheel; 3.2. Connecting plate; 3.3. Fixing bolt. Detailed Implementation

[0025] like Figure 1-3 As shown, the mobile temporary lifting auxiliary device includes a main frame 1, a movable lifting component 2, and a walking component 3.

[0026] The main frame 1 is made of steel and includes columns 1.1, longitudinal main beams 1.2, transverse main beams 1.3, horizontal connecting parts between columns 1.4, vertical connecting parts between columns 1.5, and lifting rings 1.6.

[0027] There are four sets of columns 1.1, arranged vertically. The upper ends of the four sets of columns 1.1 are welded together in pairs, end-to-end, with longitudinal main beams 1.2 and transverse main beams 1.3 forming a rectangular frame. Horizontal connectors 1.4 are connected to the columns 1.1 at the lower left and right ends of the main frame 1.4, and these connectors are parallel to the longitudinal main beams 1.2. Vertical connectors 1.5 are fixed to the columns 1.1 at the front and rear of the main frame 1, and these connectors are arranged at an angle. Lifting rings 1.6 are arranged at the middle of the upper ends of the two transverse main beams 1.3 of the main frame 1.

[0028] The column 1.1 is a square steel pipe measuring 80mm × 80mm × 4mm. The longitudinal main beams consist of two sets, 1 and 2, made of 120mm×53mm×5.5mm channel steel.

[0029] The transverse main beams consist of two sets, 1 and 3, which are made of 120mm×53mm×5.5mm channel steel welded together.

[0030] The horizontal connectors 1.4 and vertical connectors 1.5 between columns are generally made of 50×50×5mm angle steel, and the lifting rings 1.6 are generally made of 50mm×500mm×20mm steel plates with a φ30mm hole in the middle.

[0031] The movable lifting assembly 2 includes a longitudinal roller 2.1, a lifting main beam 2.2, a transverse roller 2.3, a lifting shackle 2.4, and a hand chain hoist 2.5.

[0032] like Figures 4-5 As shown, the hoisting main beam 2.2 has the same structure as the longitudinal main beam 1.2, both of which have two channel steels facing each other with a reserved gap between them, and the ends of the two channel steels are welded and fixed.

[0033] like Figures 1-3, Figure 6 As shown, the direction of the hoisting main beam 2.2 is parallel to the transverse main beam 1.3. Longitudinal lifting wheels 2.1 are installed on the left and right sides of the upper end of the hoisting main beam 2.2. The longitudinal lifting wheels 2.1 are located inside the longitudinal main beam 1.2 and move along the length of the longitudinal main beam 1.2. A transverse lifting wheel 2.3 is slidably installed inside the lower part of the hoisting main beam 2.2. A hoisting shackle 2.4 is installed at the lower end of the transverse lifting wheel 2.3, and the hoisting shackle 2.4 is detachably connected to a hand-operated hoist 2.5.

[0034] Both the longitudinal pulley 2.1 and the transverse pulley 2.3 are C30 iron sheet double bearing hangers with a diameter of 50mm.

[0035] The main beam 2.2 is made of two 120mm×53mm×5.5mm channel steels welded together.

[0036] The lifting shackle 2.4 is generally a 3t D-shaped shackle.

[0037] A typical 2.5mm hand chain hoist is 235x200x550mm and has a load capacity of 2t.

[0038] The traveling assembly 3 includes casters 3.1, connecting plates 3.2, and fixing bolts 3.3. The wheel frame of the casters 3.1 is mounted on the bottom of the main frame 1 via the connecting plates 3.2 and fixing bolts 3.3.

[0039] The 3.1 swivel caster is a 100mm diameter nylon swivel caster (with brakes). The 3.2 connecting plate is generally a 120mm×100mm×20mm steel plate. The 3.3 fixing bolts are generally M8 bolts.

[0040] The walking component 3 allows the device to move flexibly on the construction site, adapting to different terrains and working environments.

[0041] like Figure 8-9 As shown, preferably, a clamp can be configured at the lower end of the chain of the hand chain hoist 2.5. The clamp includes at least two sets of clamping bodies 5.1. Each set of clamping bodies 5.1 includes upper and lower clamping plates 5.1.1. The clamping plates 5.1.1 have symmetrical through holes 5.1.2 on both sides. A screw 5.1.3 freely passes through each through hole 5.1.2. The screw 5.1.3 has a hexagonal large end, the size of which is larger than the width of the through hole 5.1.2. The hexagonal large end of the screw 5.1.3 faces downward. The screw 5.1.3 passes through the through holes 5.1.2 of the two clamping plates 5.1.1 from bottom to top. The upper part of the screw 5.1.3 is threadedly connected to the first nut 5.1.4.

[0042] Each clamping body 5.1 has a slider fixed to the upper surface of the clamping plate 5.1.1 at the top, which slides in conjunction with the slide plate 5.2. An adjusting rod 5.3 is fixed to the upper end of each slider, and an adjusting groove 5.4 is cut along the length of the corresponding slide plate 5.2 at its upper end. The adjusting rod 5.3 passes freely through the adjusting groove 5.4 and is threadedly connected to the second nut 5.5. After the second nut 5.5 is unscrewed, it frictionally locks against the slide plate 5.2, thereby locking the position of the clamping body 5.1 along the length of the slide plate 5.2. A hanging ring 5.6 is fixed to the upper end of the slide plate 5.2, and the hanging ring 5.6 is attached to a hook on the chain of the hand chain hoist 2.5.

[0043] By setting a straight through hole 5.1.2, the screw 5.1.3 can be moved left and right, thereby bringing the two screws 5.1.3 closer or further apart. This can be adjusted according to the width or diameter of the component (lifting object 4), thus achieving left and right clamping. By moving the upper clamping plate 5.1.1 up and down, the distance between the upper and lower clamping plates 5.1.1 can be adjusted according to the height or diameter of the component, thus achieving upper and lower clamping. By engaging the sliding plate 5.2 with the slider of the clamping body 5.1 and locking it with a nut, the clamping body 5.1 can be moved relative to the sliding plate 5.2, thereby adjusting the distance between the two clamping bodies 5.1, thus adjusting according to the length of the component and ensuring that the two clamping bodies double-clamp the component.

[0044] Working principle and process: Step 1: Based on the design drawings and site conditions, customize the main frame 1 of the steel structure, and select appropriate movable lifting components 2 and walking components 3 for assembly; Step 2: Use the walking component 3 to move the device to the predetermined position, and then press the universal wheel brake to ensure the overall stability of the device.

[0045] Step 3: Connect the object to be lifted 4 directly to the hook and chain of the 2.5 hand chain hoist; or, use an auxiliary clamp to hold the object to be lifted 4; then pull the hand chain evenly to smoothly lift the object to be lifted 4 to the required height.

[0046] Step 4: After the inspection is completed or the object is moved to the predetermined position, pull the hand chain in the opposite direction evenly and smoothly and slowly place the hoisted object 4 into the predetermined position.

[0047] Step 5: After the task is completed, release the brakes on the omnidirectional wheels and move the device a short distance using the walking component 3; if a long distance is required, hoist the device onto a transport vehicle and use the transport vehicle for centralized transportation.

Claims

1. A mobile temporary lifting auxiliary device, characterized in that: Includes a main frame (1), a walking component (3) installed at the lower end of the main frame (1), and a longitudinal track at the upper end of the main frame (1); the movable lifting component (2) moves back and forth along the longitudinal track; The movable lifting assembly (2) includes a lifting main beam (2.2), with longitudinal rollers (2.1) installed on the left and right ends of the lifting main beam (2.2), and the longitudinal rollers (2.1) moving along the longitudinal track; the lifting main beam (2.2) has a transverse track, and the transverse rollers (2.3) moving along the transverse track; the lower end of the transverse rollers (2.3) extends out of the lifting main beam (2.2) and is equipped with a lifting shackle (2.4), and the lifting shackle (2.4) is detachably connected to the hand chain hoist (2.5).

2. The mobile temporary lifting auxiliary device according to claim 1, characterized in that: The main frame (1) includes a column (1.1), with a longitudinal main beam (1.2) and a transverse main beam (1.3) fixed at the upper end of the column (1.1). The longitudinal main beam (1.2) and the transverse main beam (1.3) are fixed at both ends to form a rectangular frame. The lower end of the column (1.1) is reinforced by a horizontal connector (1.4) and a vertical connector (1.5) between the columns.

3. The mobile temporary lifting auxiliary device according to claim 2, characterized in that: Both transverse main beams (1.3) are equipped with lifting rings (1.6).

4. The mobile temporary lifting auxiliary device according to claim 3, characterized in that: The main frame (1) is made of steel, wherein the columns (1.1) are made of square steel pipes, the longitudinal main beams (1.2) and the transverse main beams (1.3) are made of channel steel, and the horizontal connecting parts (1.4) and the vertical connecting parts (1.5) between columns are made of angle steel.

5. The mobile temporary lifting auxiliary device according to claim 4, characterized in that: The longitudinal main beam (1.2) and the hoisting main beam (2.2) are both made of two sets of channel steel welded together, with a gap reserved between the two sets of channel steel.

6. The mobile temporary lifting auxiliary device according to claim 1, characterized in that: The lifting shackle (2.4) is a D-shaped shackle.

7. The mobile temporary lifting auxiliary device according to claim 1, characterized in that: The walking component (3) includes a caster wheel (3.1), which is installed at the bottom of the main frame (1) via a connecting plate (3.2) and fixing bolts (3.3).

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