Hoisting equipment for mounting nodular cast iron pipe

Abstract

The utility model discloses hoisting equipment for nodular cast iron pipe installation, which is characterized in that a hoisting component is arranged in the middle of a cross beam and comprises a fixed seat arranged in the middle of the cross beam and a suspension piece arranged on the fixed seat, and hoisting fixing components are arranged on the cross beam and positioned on two sides of the hoisting component; the hoisting fixing assembly comprises a first fixing piece and a second fixing piece which are oppositely arranged, the first fixing piece and the second fixing piece are jointly connected with a suspension driving piece, a first suspension rope is arranged on the suspension driving piece, a second suspension rope is arranged on the fixing base, and the top of the first suspension rope and the top of the second suspension rope are jointly connected with an annular hoisting piece. According to the hoisting equipment for mounting the nodular cast iron pipe, in the hoisting process, the nodular cast iron pipe is suspended by the suspension piece so as to bear the main weight, the first fixing piece and the second fixing piece are clamped on the pipe wall of the nodular cast iron pipe so as to play a role in assisting suspension, and the nodular cast iron pipe is prevented from inclining.

Description

Technical Field

[0001] This utility model relates to the field of ductile iron pipe construction technology, and in particular to hoisting equipment for ductile iron pipe installation. Background Technology

[0002] In water supply systems, ductile iron pipes are a key material for transporting tap water due to their excellent performance. During the installation of ductile iron pipes, they need to be lowered into the water supply trench. Currently, the commonly used installation method is to use hoisting techniques to transport and position the ductile iron pipes.

[0003] In actual hoisting operations, the connection between the hook and the ductile iron pipe mainly relies on steel wire or chains. The crane, as the power source, is connected to the ductile iron pipe via ropes. When operating the crane, the operator controls its various movements, thereby moving the hoisting body and ultimately transferring the ductile iron pipe to a different position.

[0004] However, in actual operation, when ductile iron pipes need to be accurately placed into the water pipe trench, the pipes are easily affected and tilted during hoisting because the hook and the pipes are only connected by steel wire or chain. Once the pipes tilt, it becomes difficult to accurately align the pipe ends with the pipe ends of the already laid pipes when the pipes reach the target location for installation. This not only prolongs the installation time and reduces construction efficiency, but may also cause damage to the pipes due to repeated adjustments, affecting the service life of the ductile iron pipes and increasing later maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a hoisting device for installing ductile iron pipes, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hoisting device for installing ductile iron pipes includes a crossbeam. A hoisting assembly is located at the middle of the crossbeam. The hoisting assembly includes a fixed base located at the middle of the crossbeam and a suspension member located on the fixed base. The fixed base is provided with a fixing structure for fixing the free end of the suspension member. Hoisting fixing assemblies are provided on both sides of the crossbeam at the hoisting assembly. The hoisting fixing assemblies include a first fixing member and a second fixing member arranged opposite to each other. A suspension drive member is connected to both the first fixing member and the second fixing member. A first suspension rope is provided on the suspension drive member. The first fixing member and the second fixing member are driven by the first suspension rope and the suspension drive member and have a clamping and fixing state and a disengaged and released state. A second suspension rope is provided on the fixed base. A ring-shaped lifting member is connected to the top of both the first suspension rope and the second suspension rope.

[0008] In the aforementioned hoisting equipment for installing ductile iron pipes, the ends of both the first and second suspension ropes are adjustablely and fixedly connected to the annular lifting member.

[0009] The aforementioned hoisting equipment for installing ductile iron pipes has a suspension component with one end fixedly connected to the fixed base, and a hook connected to the other end of the suspension component. A fixing ring is provided on the crossbeam for the hook to be suspended and fixed.

[0010] The aforementioned hoisting equipment for installing ductile iron pipes includes a first segment and a second segment that are integrally formed, and the first segment and the second segment are connected at an obtuse angle.

[0011] In the aforementioned hoisting equipment for installing ductile iron pipes, the middle position of the first segment of the first fixing member and the middle position of the first segment of the second fixing member are rotatably connected together via a connecting shaft.

[0012] The aforementioned hoisting equipment for installing ductile iron pipes has an arc-shaped clamping surface on the inner side of the second section for clamping the outer wall of the ductile iron pipe, and a padding layer is detachably provided on the arc-shaped clamping surface.

[0013] The aforementioned hoisting equipment for installing ductile iron pipes has multiple strip grooves on the pad layer, and the multiple strip grooves are arranged sequentially along the circumference of the arc-shaped clamping surface.

[0014] The aforementioned hoisting equipment for installing ductile iron pipes includes a suspension drive component comprising a drive body, the lower end of the first suspension rope being fixedly connected to the drive body, a hinge seat being provided at the bottom of the drive body, and a first connecting rod and a second connecting rod being rotatably mounted on the hinge seat, the lower end of the first connecting rod being rotatably connected to the end of the first segment of the first fixing member, and the lower end of the second connecting rod being rotatably connected to the end of the first segment of the second fixing member.

[0015] The aforementioned hoisting equipment for installing ductile iron pipes has a vertical opening slot on the crossbeam, and the driving body is slidably connected in the vertical opening slot. The driving body can move up and down in the vertical opening slot when pulled by the first suspension rope.

[0016] In the above technical solution, the hoisting equipment for installing ductile iron pipes provided by this utility model has a hoisting assembly located in the middle of the crossbeam. The hoisting assembly includes a fixed seat located in the middle of the crossbeam and a suspension component located on the fixed seat. Hoisting fixing assemblies are located on both sides of the crossbeam at the hoisting assembly. The hoisting fixing assemblies include a suspension drive component and a first fixing component and a second fixing component arranged opposite to each other. A first suspension rope is provided on the suspension drive component, and a second suspension rope is provided on the fixed seat. The tops of the first suspension rope and the second suspension rope are connected to a ring-shaped lifting component. Thus, during the hoisting and installation of the ductile iron pipe, the crane lifts the first suspension rope and the second suspension rope through the ring-shaped suspension component. During the hoisting and installation process, the suspension component suspends the ductile iron pipe to bear the main weight. The first fixing component and the second fixing component clamp onto the pipe wall of the ductile iron pipe, playing an auxiliary role in suspension and preventing the ductile iron pipe from tilting, ensuring that the ductile iron pipe can be accurately inserted into the installation interface, thereby improving the installation efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 One of the structural schematic diagrams of the hoisting equipment for installing ductile iron pipes provided in this embodiment of the utility model;

[0019] Figure 2 A second schematic diagram of the structure of the hoisting equipment for installing ductile iron pipes provided in this embodiment of the utility model;

[0020] Figure 3 This is one of the structural schematic diagrams of the hoisting and fixing assembly provided in the embodiments of this utility model;

[0021] Figure 4 This is the second structural schematic diagram of the hoisting and fixing assembly provided in an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Crossbeam; 11. First suspension rope; 12. Second suspension rope; 13. Circular lifting component; 14. Vertical opening slot; 15. Mounting base; 2. Lifting assembly; 21. Fixing seat; 22. Suspension component; 221. Hook; 23. Fixing ring; 3. Lifting fixing assembly; 31. First fixing component; 32. Second fixing component; 33. Suspension drive component; 331. Hinge seat; 332. First connecting rod; 333. Second connecting rod; 34. First section; 35. Second section; 36. Connecting shaft; 37. Arc-shaped clamping surface; 38. Pad layer; 381. Strip groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, this utility model provides a hoisting device for installing ductile iron pipes. A hoisting assembly 2 is provided in the middle of the crossbeam 1. The hoisting assembly 2 includes a fixed seat 21 located in the middle of the crossbeam 1 and a suspension member 22 located on the fixed seat 21. The fixed seat 21 is provided with a fixing structure for fixing the free end of the suspension member 22. Hoisting fixing assemblies 3 are provided on both sides of the crossbeam 1 located on the hoisting assembly 2. The hoisting fixing assemblies 3 include a first fixing member 31 and a second fixing member 32 arranged opposite to each other. A suspension drive member 33 is connected to the first fixing member 31 and the second fixing member 32. A first suspension rope 11 is provided on the suspension drive member 33. The first fixing member 31 and the second fixing member 32 are driven by the first suspension rope 11 and the suspension drive member 33 and have a clamping and fixing state and a separating and releasing state. A second suspension rope 12 is provided on the fixed seat 21. A ring-shaped lifting member 13 is connected to the top of the first suspension rope 11 and the second suspension rope 12.

[0026] Specifically, the crossbeam 1 is the basic support component of the entire hoisting equipment, possessing high strength to withstand various forces generated during the hoisting process. The hoisting assembly 2 and the fixed base 21 are located in the middle of the crossbeam 1. One or two hoisting assemblies 2 can be installed as needed; for example, two hoisting assemblies 2 can be installed when suspending large-diameter ductile iron pipes. The hoisting assembly 2 consists of a fixed base 21, a suspension component 22, and a second suspension rope 12. The fixed base 21 is fixedly installed on the crossbeam 1 and can be tightly fixed to the crossbeam 1 by welding, bolting, or other methods. The suspension component 22 is used to suspend the ductile iron pipe. The suspension component 22 can be a high-strength steel wire rope or suspension belt. One end of the suspension rope is connected to the fixed base 21 to form a fixed end, and the other end of the suspension rope is a free end. A fixing structure is provided on the fixed base 21 to fix the free end of the suspension component 22. The fixing structure can be a fixing ring 23, with a hook 221 provided at the free end of the suspension member 22. In this way, during use, the suspension member 22 is wrapped around the ductile iron pipe and the hook 221 is fixed to the fixing ring 23.

[0027] In this embodiment, the hoisting and fixing assembly 3 includes a first fixing member 31 and a second fixing member 32 arranged symmetrically. The shapes and structures of the first fixing member 31 and the second fixing member 32 are adapted to each other. For example, the first fixing member 31 and the second fixing member 32 can be two semi-circular ring structures or clamping plate structures. The first fixing member 31 and the second fixing member 32 are rotatably connected by a pin or other means, so that they can move relative to each other to clamp and release the pipe. The suspension drive component 33 is connected together with the first fixing component 31 and the second fixing component 32. The suspension drive component 33 provides a driving force for the relative movement of the first fixing component 31 and the second fixing component 32. The suspension drive component 33 can drive the first fixing component 31 and the second fixing component 32 to have a clamping and fixed state and a disengaged and released state. When the first fixing component 31 and the second fixing component 32 are in the clamping and fixed state, they are respectively clamped onto the pipe walls on opposite sides of the ductile iron pipe, suspending the ductile iron pipe. The lifting and fixing assembly 3 and the lifting assembly 2 cooperate with each other to ensure that the lifting assembly 2 is stable and does not tilt. When the first fixing component 31 and the second fixing component 32 are in the disengaged and released state, the ductile iron pipe can be lowered.

[0028] In this embodiment, during the suspension process, the crane applies a suspension force to the crossbeam 1 via the first suspension rope 11 and the second suspension rope 12. Both the first suspension rope 11 and the second suspension rope 12 are made of high-strength steel wire rope. The lower end of the first suspension rope 11 is connected to the suspension drive component 33, and the lower end of the second suspension rope 12 is fixedly mounted on the fixed base 21. The tops of the first suspension rope 11 and the second suspension rope 12 are connected together to the annular lifting component 13. The annular lifting component 13 can be a metal ring, which serves to connect the suspension ropes from different directions to balance and distribute the force. During the lifting process, the annular lifting component 13 is connected to the suspension hook on the crane.

[0029] In this embodiment, the steps for hoisting the ductile iron pipe are as follows:

[0030] Installation and Fixing Stage: Based on parameters such as the diameter and length of the ductile iron pipe, select the corresponding suspension component 22, first fixing component 31, and second fixing component 32 to adapt to the pipe size. Then, operate the crane to gradually bring the lifting and fixing components 3 and 2 closer to the pipe until the first fixing component 31 and second fixing component 32 correspond to the ductile iron pipe. Manually adjust the components so that they are positioned on both sides of the ductile iron pipe, and then secure the suspension component 22 around the ductile iron pipe.

[0031] Lifting Phase: Operate the crane to lift the first suspension rope 11 and the second suspension rope 12 via the annular lifting member 13. As the first suspension rope 11 and the second suspension rope 12 rise, the ductile iron pipe is gradually lifted off the ground. During the lifting process, the suspension member 22 suspends the ductile iron pipe to bear the main weight, and the first fixing member 31 and the second fixing member 32 are clamped to the pipe wall of the ductile iron pipe.

[0032] Installation and positioning phase: The ductile iron pipe is hoisted to the installation position and slowly lowered until it approaches the installation interface. During descent, the position and angle of the ductile iron pipe must be precisely controlled to ensure accurate insertion into the installation interface. Once the pipe is in place, the first fixing member 31 and the second fixing member 32 are released from their clamping positions. Then, the suspension member 22 is removed from the ductile iron pipe. Finally, the hoisting equipment is removed from the installation site, completing the installation of the ductile iron pipe.

[0033] The hoisting equipment for installing ductile iron pipes provided by this utility model includes a hoisting assembly 2 located at the middle position of a crossbeam 1. The hoisting assembly 2 includes a fixed base 21 located at the middle position of the crossbeam 1 and a suspension member 22 located on the fixed base 21. Hoisting fixing assemblies 3 are located on both sides of the crossbeam 1 at the hoisting assembly 2. The hoisting fixing assemblies 3 include a suspension drive 33 and a first fixing member 31 and a second fixing member 32 arranged opposite to each other. A first suspension rope 11 is provided on the suspension drive 33, and a second suspension rope 12 is provided on the fixed base 21. The first suspension rope 11 and the second fixing member 32 are connected together. The tops of the two suspension ropes 12 are connected to a ring-shaped lifting member 13. Thus, during the suspension installation of the ductile iron pipe, the crane lifts the first suspension rope 11 and the second suspension rope 12 through the ring-shaped lifting member 13. During the lifting and installation process, the suspension member 22 suspends the ductile iron pipe to bear the main weight. The first fixing member 31 and the second fixing member 32 are clamped on the pipe wall of the ductile iron pipe, which plays an auxiliary role in suspension and prevents the ductile iron pipe from tilting. This ensures that the ductile iron pipe can be accurately inserted into the installation interface, thereby improving the installation efficiency.

[0034] In this embodiment, preferably, one end of the suspension member 22 is fixedly connected to the fixed base 21. The suspension member 22 can be a high-strength steel wire rope or a suspension belt. The other end of the suspension member 22 is connected to a hook 221. A fixing ring 23 is provided on the crossbeam 1 for the hook 221 to be suspended and fixed. The length of the suspension member 22 is set to correspond to the diameter of the ductile iron pipe. In this way, when in use, the suspension member 22 is passed through the bottom of the ductile iron pipe and the hook 221 is fixed on the fixing ring 23, thereby fixing the suspension member 22 to the ductile iron pipe.

[0035] In this embodiment, preferably, the hoisting and fixing assembly 3 includes a first fixing member 31 and a second fixing member 32 arranged opposite to each other. The first fixing member 31 and the second fixing member 32 each include a first segment 34 and a second segment 35 integrally formed. The first segment 34 and the second segment 35 are connected at an obtuse angle. The middle position of the first segment 34 of the first fixing member 31 and the middle position of the first segment 34 of the second fixing member 32 are rotatably connected together by a connecting shaft 36. The connecting shaft 36 is made of high-strength steel. A mounting base 15 is arranged opposite to each other at the bottom of the crossbeam 1. An open mounting groove is provided on the mounting base 15. The connecting shaft 36 is installed in the open mounting groove of the mounting base 15. Thus, by driving the end of the first segment 34, the first fixing member 31 and the second fixing member 32 can rotate about the connecting shaft 36 as the rotation axis, switching between the clamping and fixing state and the separation and release state.

[0036] In this embodiment, preferably, the inner side of the second segment 35 is provided with an arc-shaped clamping surface 37 for clamping the outer wall of the ductile iron pipe. A pad 38 is detachably provided on the arc-shaped clamping surface 37. By providing the pad 38, the protection of the ductile iron pipe can be increased, and damage to the outer wall of the ductile iron pipe can be avoided. The pad 38 is provided with multiple strip grooves, which are arranged sequentially along the circumference of the arc-shaped clamping surface 37. Each strip groove is arranged in a direction parallel to the axis of the ductile iron pipe. By providing the strip grooves, the friction between the pad 38 and the ductile iron pipe can be increased, thereby improving the clamping effect.

[0037] In this embodiment, preferably, the suspension drive component 33 includes a drive body, the lower end of the first suspension rope 11 is fixedly connected to the drive body, the bottom of the drive body is provided with a hinge seat 331, a first connecting rod 332 and a second connecting rod 333 are rotatably provided on the hinge seat 331, the lower end of the first connecting rod 332 is rotatably connected to the end of the first segment 34 of the first fixing member 31, the lower end of the second connecting rod 333 is rotatably connected to the end of the first segment 34 of the second fixing member 32, a vertical opening groove 14 is provided on the crossbeam 1, the drive body is slidably connected in the vertical opening groove 14, the drive body can move up and down in the vertical opening groove 14 when pulled by the first suspension rope 11, the vertical opening groove 14 restricts the movement of the drive body in the vertical direction, so that the drive body can only move up and down in the vertical opening groove 14.

[0038] In the initial state, the first fixing member 31 and the second fixing member 32 are in a separated and loose state, with the first fixing member 31 and the second fixing member 32 open and on the side of the ductile iron pipe. When the driving body is pulled upward by the first suspension rope 11, the driving body pulls the first connecting rod 332 and the second connecting rod 333. The first connecting rod 332 and the second connecting rod 333 pull the first fixing member 31 and the second fixing member 32 respectively, thereby driving the first fixing member 31 and the second fixing member 32 to move towards the outer wall of the ductile iron pipe (the first fixing member 31 and the second fixing member 32 move towards each other), thereby clamping and fixing the first fixing member 31 and the second fixing member 32 onto the pipe wall of the ductile iron pipe.

[0039] In this embodiment, preferably, the ends of the first suspension rope 11 and the second suspension rope 12 are adjustable and fixedly connected to the annular lifting member 13. The lengths of the first suspension rope 11 and the second suspension rope 12 are set according to the suspension requirements. After the installation and fixing are completed, the length of the first suspension rope 11 is less than the length of the second suspension rope 12 in the vertical direction. Thus, in the first stage of lifting, when the crane lifts the first suspension rope 11 and the second suspension rope 12 through the annular lifting member 13, the first suspension rope 11 is first subjected to force, thereby driving the driving body. The movement of the driving body can pull the first connecting rod 332 and the second connecting rod 333, causing the first fixing member 31 and the second fixing member 32 to move towards each other. The first fixing member 31 and the second fixing member 32 clamp the ductile iron pipe. Then, the second stage begins, which is normal suspension. In this way, the first fixing member 31 and the second fixing member 32 clamp the ductile iron pipe to prevent tilting during the lifting and moving of the ductile iron pipe.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hoisting device for installing ductile iron pipes, characterized in that, The beam is provided with a hoisting assembly at the middle position, the hoisting assembly comprises a fixing base arranged at the middle position of the beam and a suspension piece arranged on the fixing base, the fixing base is provided with a fixing structure for fixing the free end of the suspension piece, the beam is provided with a hoisting fixing assembly on both sides of the hoisting assembly, the hoisting fixing assembly comprises oppositely arranged first and second fixing pieces, the first and second fixing pieces are jointly connected with a suspension driving piece, the suspension driving piece is provided with a first suspension rope, the first and second fixing pieces are driven by the first suspension rope and the suspension driving piece to have a clamping fixing state and a separation loosening state, the fixing base is provided with a second suspension rope, and the top of the first and second suspension ropes is jointly connected with a ring-shaped lifting piece.

2. The ductile cast iron pipe installation hoisting apparatus according to claim 1, characterized by, The end of the first and second suspension ropes is adjustably fixedly connected to the ring-shaped lifting piece.

3. The ductile cast iron pipe installation hoisting apparatus according to claim 1, characterized by, One end of the suspension piece is fixedly connected to the fixing base, and the other end of the suspension piece is connected with a hook, and the beam is provided with a fixing ring for suspending and fixing the hook.

4. The ductile cast iron pipe installation hoisting apparatus according to claim 1, characterized by The first and second fixing pieces each comprise integrally arranged first and second sections, and the first and second sections are connected at an obtuse angle.

5. The ductile cast iron pipe installation hoisting apparatus according to claim 4, characterized by The middle positions of the first sections of the first and second fixing pieces are rotatably connected by a connecting shaft.

6. The ductile cast iron pipe installation hoisting apparatus according to claim 5, characterized by The inner side of the second section is provided with an arc-shaped clamping surface for clamping the outer side wall of the nodular cast iron pipe, and a cushion layer is detachably arranged on the arc-shaped clamping surface.

7. The ductile cast iron pipe installation hoisting apparatus according to claim 6, characterized by A plurality of strip-shaped grooves are arranged on the cushion layer in sequence along the circumference of the arc-shaped clamping surface.

8. The ductile cast iron pipe installation hoisting apparatus according to claim 7, characterized by The suspension driving piece comprises a driving body, the lower end of the first suspension rope is fixedly connected to the driving body, the bottom of the driving body is provided with a hinged seat, the hinged seat is rotatably provided with first and second connecting rods, the lower end of the first connecting rod is rotatably connected to the end of the first section of the first fixing piece, and the lower end of the second connecting rod is rotatably connected to the end of the first section of the second fixing piece.

9. The ductile cast iron pipe installation hoisting apparatus according to claim 8, characterized by The beam is provided with a vertical open slot, the driving body is slidably connected in the vertical open slot, and the driving body is driven by the first suspension rope to move up and down in the vertical open slot.

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