Movable hoisting support

Abstract

The utility model relates to the technical field of hoisting, and provides a movable hoisting support which comprises a base, a support body, a winch, an anti-falling fence, a hoisting rope and a fixed pulley, the winch is arranged on the base, universal wheels are arranged at the bottom of the base, the bottom of the support body is arranged on one side of the top of the base, and the fixed pulley is arranged on the support body. The fixed pulley is arranged at the top of the support, the anti-falling fence is arranged in the middle of the top of the support and has an open state and a closed state, when the anti-falling fence is in the closed state, the anti-falling fence can be used for placing a hoisted object, one end of the hoisting rope is connected with the hoisted object, and the other end of the hoisting rope is connected with the fixed pulley. The other end of the hoisting rope is connected with the winch after passing through the fixed pulley; according to the utility model, the hoisting operation is simple, the occupied road area is small, the arrangement is flexible, the construction cost is low, common personnel can be skilled to operate after being slightly trained, and the working efficiency in construction is improved.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, specifically to a mobile hoisting support. Background Technology

[0002] Because the sealing head required for sealing large-diameter underwater pipes is large, the sealing head is generally made in a modular structure. During construction, each component of the sealing head needs to be hoisted into the manhole in sequence and assembled inside the manhole before construction can begin, which increases the workload of hoisting and installation.

[0003] Currently, the existing underwater pipeline plugging equipment is mainly installed using truck cranes, which not only occupy a large area of ​​road space and are costly, but also require professional personnel to operate. There is an urgent need to design a new type of lifting equipment to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a mobile hoisting support.

[0005] A mobile hoisting support according to this utility model includes a base, a support, a winch, a fall arrestor, a hoisting rope, and a fixed pulley. The winch is mounted on the base, and the bottom of the base is provided with casters. The bottom of the support is mounted on one side of the top of the base. The fixed pulley is mounted on the top of the support. The fall arrestor is mounted in the middle of the top of the support and has an open state and a closed state. When the fall arrestor is in the closed state, it can be used to place the object to be hoisted. One end of the hoisting rope is connected to the object to be hoisted, and the other end of the hoisting rope is connected to the winch after passing through the fixed pulley.

[0006] When the winch is started to rotate forward, it can pull the hoisting rope to drive the fixed pulley to rotate, thereby lifting the object to be hoisted. At this time, the fall arrestor can be adjusted to the open state to form an opening. When the winch is started to rotate in reverse, the hoisted object can be moved downward and enter the manhole through the opening.

[0007] Preferably, the fall arresting rail includes a left support frame and a right support frame. The left side of the left support frame is hinged to the left side of the upper part of the base, and the right side of the right support frame is hinged to the right side of the upper part of the base. The left support frame can be rotatably opened or closed around the left hinge point, and the right support frame can be rotatably opened or closed around the right hinge point. When both the left and right support frames are open, the fall arresting rail is in the open state. When both the left and right support frames are closed, the fall arresting rail is in the closed state.

[0008] Preferably, in the closed state, the front ends of the left and right support frames of the fall arrestor are both supported on the front crossbeam of the base.

[0009] Preferably, the base is further provided with a rear support platform, and the rear ends of the left support frame and the right support frame are supported on the rear support platform when the fall arrestor is in the closed state.

[0010] Preferably, it further includes a locking component disposed on the base.

[0011] Preferably, the locking assembly includes support rods arranged at the four corners of the base. Each support rod includes a column and a handle arranged on the top of the column. The column is threaded into the base. Holding the handle drives the column to rotate downward, thereby forming a support at the bottom of the column, at which time the casters do not contact the ground. When holding the handle drives the column to rotate upward, thereby lifting the bottom of the column off the ground, the casters touch the ground, and the lifting bracket can be moved by the casters.

[0012] Preferably, the fixed pulley is arranged directly above the winch.

[0013] Preferably, the bracket is equipped with a steering wheel.

[0014] Preferably, the base and the bracket are both made of square tubing welded together.

[0015] Preferably, a reinforcing plate is provided at the connection between the bracket and the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model, through the combination of a winch, pulley, and hoisting rope, can lift objects from fall arrest barriers into manholes, completely replacing truck cranes in pipeline sealing and hoisting operations. It overcomes the inconvenience and high cost of using truck cranes. The hoisting support equipment is lightweight, has fewer site restrictions during construction, is easy to transport as a whole, and is simple to operate. It not only occupies little road space and is flexible in layout, but also has low construction costs. Ordinary personnel can operate it proficiently after a little training, thus improving work efficiency during construction. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] The diagram shows:

[0021] Base 1

[0022] 11 omnidirectional wheels

[0023] Backend Support Platform 13

[0024] Front crossbeam 12

[0025] Reinforcing plate 14

[0026] Bracket 2

[0027] 21 steering wheel

[0028] 3 winches

[0029] Fall arrestor 4

[0030] Left support frame 41

[0031] Right support frame 42

[0032] Locking component 5

[0033] Column 51

[0034] Handle 52

[0035] Fixed pulley 6 Detailed Implementation

[0036] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0037] This utility model provides a mobile hoisting bracket, such as Figure 1 As shown, the system includes a base 1, a bracket 2, a winch 3, a fall arrestor 4, a locking assembly 5, a hoisting rope, and a fixed pulley 6. The locking assembly 5 and the winch 3 are both mounted on the base 1, and the base 1 has casters 11 at its bottom, allowing the hoisting bracket to move. The bottom of the bracket 2 is located on one side of the top of the base 1. Preferably, the bracket 2 is welded to the base 1. To increase the strength of the connection, a reinforcing plate 14 is provided at the connection point between the bracket 2 and the base 1, increasing the strength of the connection between the two.

[0038] The fixed pulley 6 is positioned at the top of the support frame 2 and directly above the winch 3. The fall arrestor 4 is positioned at the center of the top of the support frame 2 and has open and closed states. When the fall arrestor 4 is closed, it serves as a support medium for placing the object being hoisted. One end of the hoisting rope can be equipped with a hook to suspend the object. The other end of the hoisting rope is connected to the winch 3 via the fixed pulley 6. When the winch 3 is started and rotated forward, it pulls the hoisting rope, causing the fixed pulley 6 to rotate. The hoisting mechanism then lifts the object and moves it away from the fall arrestor 3. At this time, the fall arrestor 4 can be adjusted from the closed state to the open state. When the fall arrestor 4 is in the open state, an opening is formed on the base 1, allowing the object to pass through. When the winch 3 is started to reverse, the object moves downward and can then enter the manhole through the opening. This realizes the hoisting of the object from the ground to the inside of the manhole. By repeatedly hoisting the object into the manhole, the operation of hoisting all components of the sealing head into the manhole is finally completed. In actual operation, the operator can flexibly move the hoisting bracket according to the location of the manhole so that the opening is aligned with the manhole, and then fix the hoisting bracket with the locking component 5 before carrying out the hoisting operation. This solves the disadvantages of using a truck crane, such as occupying a lot of road space, high cost, and requiring professional personnel for operation and command, and greatly improves the efficiency of hoisting and operation.

[0039] It should be noted that, in order to ensure that the end of the lifting rope with the hook is aligned with the center of the opening during hoisting, the end of the support 2 extending directly above the opening is equipped with a deflector 21. The lifting rope passes through the fixed pulley 6 and then the deflector 21 from the winch 3 upwards, ensuring the downward direction of the end of the lifting rope with the hook and improving the practicality of the hoisting support.

[0040] Specifically, the fall arresting rail 4 includes a left support frame 41 and a right support frame 42. The left side of the left support frame 41 is hinged to the left side of the upper part of the base 1, and the right side of the right support frame 42 is hinged to the right side of the upper part of the base 1. The left support frame 41 can be rotatably opened or closed around the left hinge point, and the right support frame 42 can be rotatably opened or closed around the right hinge point. When both the left support frame 41 and the right support frame 42 are open, the fall arresting rail 4 is in the open state. When both the left support frame 41 and the right support frame 42 are closed, the fall arresting rail 4 is in the closed state. In the closed state, the front ends of both the left support frame 41 and the right support frame 42 are supported on the front crossbeam 12 of the base 1.

[0041] Furthermore, in order to increase the stability of the fall arrestor 4 in supporting the hoisted object, a rear support 13 is also provided on the base 1. The rear support 13 is a support tube extending from the side of the base 1 toward the center of the opening. When the fall arrestor 4 is in the closed state, the rear ends of the left support frame 41 and the right support frame 42 are supported on the rear support 13, which increases the supporting force of the fall arrestor 4.

[0042] like Figure 1As shown, the locking assembly 5 includes support rods arranged at the four corners of the base 1. Each support rod includes a column 51 and a handle 52 arranged on the top of the column 51. The column 51 is threaded into the base 1. Holding the handle 52 drives the column 51 to rotate downward, thereby forming a support at the bottom of the column 51. At this time, the casters 11 do not contact the ground and are not in use, making the lifting bracket immovable. When holding the handle 52 drives the column 51 to rotate upward, thereby lifting the bottom of the column 51 off the ground, the casters 11 touch the ground, and the lifting bracket can be moved to the destination via the casters 11, making operation convenient.

[0043] In one possible embodiment, the mobile hoisting support is welded entirely from 50mm×50mm carbon steel square tubing, which provides good rigidity and light weight.

[0044] The working principle of this utility model is as follows:

[0045] When performing large-diameter pipe plugging operations, first place the mobile hoisting support above the manhole. Then, place the various components of the airbag or plugging head onto the fall arrestor 4. Start the winch 3 to hoist the components of the airbag or plugging head to a certain height using the hoisting ropes. Hover the components, open the fall arrestor 4 on the support, and lower the components of the airbag or plugging head through the opening and manhole opening in sequence. After assembly, proceed to the next step of the plugging operation. After the plugging operation is completed, use the hoisting support to lift them out of the manhole in sequence. The hoisting work is then complete.

[0046] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A mobile hoisting support, characterized in that, The utility model provides a lifting device, including base (1), support (2), winch (3), anti -fall fence (4), hoisting rope and fixed pulley (6), winch (3) is arranged on base (1) and the bottom of base (1) is provided with universal wheel (11), the bottom of support (2) is arranged in the top of one side of base (1), fixed pulley (6) is arranged in the top of support (2), anti -fall fence (4) is arranged in the top of the middle part of support (2) and has open state and closed state, when anti -fall fence (4) is in closed state, anti -fall fence (4) can be used for placing the hoisted object, one end of hoisting rope is connected hoisted object, the other end of hoisting rope is connected winch (3) after fixed pulley (6); When starting winch (3) positive rotation, hoisting rope can be pulled to drive fixed pulley (6) rotation in turn to hoist hoisted object, at this time, anti -fall fence (4) can be adjusted to open state in turn to form opening, starting winch (3) reverse can hoist hoisted object and move down in turn to enter into the well through the opening.

2. The mobile hoist support of claim 1, wherein, Anti -fall fence (4) includes left support frame (41), right support frame (42), the left side of left support frame (41) is hinged in the left side of the upper portion of base (1), the right side of right support frame (42) is hinged in the right side of the upper portion of base (1), left support frame (41) can be rotatable open or closed around left side hinge point, right support frame (42) can be rotatable open or closed around right side hinge point, when left support frame (41), right support frame (42) are all opened, anti -fall fence (4) is in open state, when left support frame (41), right support frame (42) are all closed, anti -fall fence (4) is in closed state.

3. The mobile hoist support of claim 2, wherein, In the closed state of anti -fall fence (4), the front end of left support frame (41) and right support frame (42) is supported on the front end crossbeam (12) of base (1).

4. The mobile hoist support of claim 3, wherein, The rear end of left support frame (41) and right support frame (42) of anti -fall fence (4) in the closed state is supported on the rear end support (13) of base (1).

5. The mobile hoist support of claim 1, wherein, It further includes locking assembly (5), and the locking assembly (5) is arranged on the base (1).

6. The mobile hoist support of claim 5, wherein, The locking assembly (5) includes support rods arranged on the four corners of the base (1), each of the support rods includes a column body (51) and a handle (52) arranged on the top of the column body (51), the column body (51) is threadedly connected with the base (1), holding the handle (52) drives the column body (51) to rotate downward, so that the bottom of the column body (51) forms a support, at this time, the universal wheel (11) does not contact the ground, when holding the handle (52) drives the column body (51) to rotate upward, so that the bottom of the column body (51) is away from the ground, at this time, the universal wheel (11) is grounded, and the lifting support is movable through the universal wheel (11).

7. The mobile hoist support of claim 1, wherein, The fixed pulley (6) is arranged directly above the winch (3).

8. The mobile hoist support of claim 1, wherein, The support (2) is provided with a deflector (21).

9. The mobile hoist support of claim 1, wherein, The base (1) and the support (2) are both welded with square tubes.

10. The mobile hoist support of claim 1, wherein, The support (2) is provided with a reinforcing plate (14) at the connection with the base (1).

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