Hoisting structure for dismounting of pipe fittings

Abstract

A hoisting structure for pipeline accessory dismounting, characterized in that it comprises a dismounting group, a support and a hoisting connecting group; the two ends of the dismounting group are hollow cylindrical structures, the two sides of the dismounting group are rod-shaped structures, and the dismounting group is arranged at the outer end of the flange of the external pipeline accessory; the support is a rectangular structure with a preset height and an open bottom, and the support is arranged at the top of the dismounting group; the top of the hoisting connecting group is connected with the support, and the bottom of the hoisting connecting group is connected with the external pipeline accessory, and the hoisting connecting group is suitable for hoisting the external pipeline accessory after the dismounting group completes the dismounting of the external pipeline accessory; through the above arrangement, the weight of the replaced pipeline accessory is light, which is several dozen kilograms, or heavy, which is 100-200 kilograms, so it is very difficult to keep the pipeline accessory in a stable state for a long time.

Description

Technical Field

[0001] This utility model relates to the field of heating system technology, and in particular to a hoisting structure for disassembling pipe fittings. Background Technology

[0002] The boiler room and heat exchange station of the heating system are the heart of the system. Due to the limitations of environment, site, and equipment function, the pipes inside the station are intertwined and crisscrossed. The main pipelines are often located on the roof of the station, 3 to 6 meters above the ground. Various functional accessories such as valves and flow meters attached to the pipelines, hereinafter referred to as "pipeline accessories", are also installed on the roof pipelines due to their own installation process requirements. When these pipeline accessories need to be grounded for maintenance or replacement, disassembly and reassembly become a relatively difficult problem.

[0003] The current practice involves first erecting scaffolding or mobile scaffolding, then setting up walkways on the scaffolding for operators to assemble and disassemble. This method has several drawbacks. During system operation, the flanges on the pipeline clamp the pipe fittings very tightly, typically under pressure of 0.1–1.5 MPa. During disassembly, a 1–2 mm gap is required between each pair of connecting flanges at both ends of the pipe fitting before it can be removed. Installing the pipe fittings requires lifting them into place before bolting them in, necessitating that the pipe fittings remain stable for extended periods. However, the weight of the replaced pipe fittings can range from tens of kilograms to 100–200 kilograms, making it very difficult to maintain stability for extended periods. Utility Model Content

[0004] In view of this, this application proposes a lifting structure for disassembling pipe fittings, which can replace heavy pipe fittings.

[0005] According to one aspect of this application, a hoisting structure for disassembling pipe fittings is provided, comprising a disassembly assembly, a support member, and a hoisting connection assembly; the two ends of the disassembly assembly are hollow cylindrical structures, the two sides of the disassembly assembly are rod-shaped structures, and the disassembly assembly is disposed at the outer end of the flange of the external pipe fitting; the support member is a rectangular structure with a bottom opening of a preset height, and the support member is disposed at the top of the disassembly assembly; the top of the hoisting connection assembly is connected to the support member, and the bottom of the hoisting connection assembly is connected to the external pipe fitting, which is suitable for hoisting the external pipe fitting after the disassembly assembly has completed the disassembly of the external pipe fitting.

[0006] In one possible implementation, the support member includes a support rod and a crossbeam; the support rod has a preset length, the lower end of the support rod is connected to the disassembly assembly, and two support rods are provided; the crossbeam is provided at the upper end of the support rod, the crossbeam is arranged perpendicular to the support rod, and the two ends of the crossbeam are respectively connected to the upper ends of the two support members.

[0007] In one possible implementation, the crossbeam is an adjustable-length rod-like structure, comprising a first connecting rod, a second connecting rod, and an adjusting rod, wherein the adjusting rod is disposed between the first connecting rod and the second connecting rod and is adapted to adjust the distance between the first connecting rod and the second connecting rod.

[0008] In one possible implementation, the lifting connection assembly includes a lug, a lifting head, a rope, and a hook; the lug is a circular ring structure, passing through the first connecting rod and located on the adjusting rod; the top of the lifting head is fixedly connected to the bottom of the lug; the rope is wound around the lifting head; one end of the hook is connected to one end of the rope, and the other end of the rope is wound around an external pipe fitting and then connected to the other end of the hook.

[0009] In one possible implementation, the lifting head has a rhomboid structure, comprising two rhomboid plates, a connecting shaft, and a pulley. The connecting shaft is disposed between the two rhomboid plates, and the pulley passes through the connecting shaft and is disposed between the two rhomboid plates.

[0010] In one possible implementation, the disassembly assembly includes a first clamp, a second clamp, fastening lugs, and a force-applying rod; the first clamp and the second clamp are both cylindrical structures with open ends, respectively mounted on the external pipe, and the first clamp and the second clamp are located at the outer ends of the flanges at both ends of the pipe fitting; four fastening lugs are provided, respectively mounted on the first clamp and the second clamp, and respectively located on both sides of the external pipe; the force-applying rod has a preset length, and two force-applying rods are provided, with the two force-applying rods located on both sides of the external pipe fitting, and the two ends of the force-applying rod are connected to the two fastening lugs on the same side.

[0011] In one possible implementation, the disassembly assembly further includes four plugs, two of which are respectively disposed between the connection points of the force-applying rod and the two fastening ears on the first clamp, and the other two plugs are respectively disposed between the connection points of the force-applying rod and the two fastening ears on the second clamp.

[0012] In one possible implementation, a support base is provided at the top of the first clamp and the second clamp. The support base is a cylindrical structure, and the bottom of the support rod is connected to the support base.

[0013] In one possible implementation, reinforcing ribs are provided on both the inner and outer ends of the first clamp and the second clamp.

[0014] In one possible implementation, a support rod head is provided at the top of the support rod, the support rod head being a cylindrical structure with a through hole, through which the crossbeam passes.

[0015] The beneficial effects of this utility model are as follows: By setting up a disassembly assembly, a support component, and a hoisting connection assembly; the two ends of the disassembly assembly are hollow cylindrical structures, and the two sides of the disassembly assembly are rod-shaped structures, and the disassembly assembly is set on the outside of the flange of the external pipe fitting, this setting of the disassembly assembly creates a gap between the pipe and the pipe fitting; the support component is a rectangular structure with a bottom opening of a preset height, and the support component is set on the top of the disassembly assembly. The support component is set to ensure that there is a certain distance between the hoisting connection assembly and the pipe fitting, so that maintenance personnel can easily apply pulling force; the top of the hoisting connection assembly is connected to the support component, and the bottom of the hoisting connection assembly is connected to the external pipe fitting. After the disassembly assembly creates a gap between the pipe and the pipe fitting, the maintenance personnel apply pulling force to the hoisting connection assembly, the hoisting connection assembly connects to the pipe fitting, and the pipe fitting, upon receiving the pulling force, detaches from the pipe, completing the disassembly. Attached Figure Description

[0016] Figure 1 This document shows a detailed structural diagram of the hoisting structure for disassembling pipe fittings according to an embodiment of this application. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model or simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," and "hinged" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figure 1 As shown, the hoisting structure for disassembling pipe fittings includes a disassembly assembly 100, a support member 200, and a hoisting connection assembly 300. The disassembly assembly 100 has two hollow cylindrical structures at both ends and rod-shaped structures on both sides, and is positioned at the outer end of the flange of the external pipe fitting. The support member 200 is a rectangular structure with a bottom opening of a preset height, and is positioned at the top of the disassembly assembly 100. The top of the hoisting connection assembly 300 is connected to the support member 200, and the bottom of the hoisting connection assembly 300 is connected to the external pipe fitting. This structure is suitable for hoisting the external pipe fitting after the disassembly assembly 100 has completed its work.

[0023] Specifically, such as Figure 1 As shown, the specific structure of the hoisting structure for disassembling pipe fittings includes a disassembly assembly 100, a support component 200, and a hoisting connection assembly 300. First, the disassembly assembly 100 includes a first clamp 110, a second clamp 120, and a force-applying rod 130. The first clamp 110 and the second clamp 120 are both cylindrical structures with open ends, respectively installed on the external pipe, and the first clamp 110 and the second clamp 120 are located at the outer ends of the flanges at both ends of the pipe fitting. The force-applying rod 130 is installed on both sides of the pipe fitting, and the two ends of the force-applying rod 130 are connected to the first clamp 110 and the second clamp 120 respectively. The distance between the first clamp 110 and the second clamp 120 is adjusted by the force-applying rod to create a gap between the pipe and the pipe fitting.

[0024] The support member 200 is designed to create a certain distance between the hoisting connection group 300 and the pipe fittings, making it easier for maintenance personnel to apply tension later. Therefore, the support member 200 has a preset height and is designed as a rectangular structure with a bottom opening at the preset height, so that the support member 200 can be placed on top of the disassembly group 100 and avoid the pipe fittings.

[0025] The purpose of setting up the hoisting connection group 300 is to apply tension to the pipe fittings, which facilitates the disassembly of the pipe fittings and the need for the pipe fittings to be stable for a long time when the bolts pass through the flange holes during installation.

[0026] In one possible implementation, the support member 200 includes a support rod 210 and a crossbeam 220; the support rod 210 has a preset length, the lower end of the support rod 210 is connected to the disassembly assembly 100, and two support rods 210 are provided; the crossbeam 220 is provided at the upper end of the support rod 210, the crossbeam 220 is arranged perpendicular to the support rod 210, and the two ends of the crossbeam 220 are respectively connected to the upper ends of the two support members 210.

[0027] Specifically, such as Figure 1 As shown, the specific structure of the support member 200 includes two support rods 210 and a crossbeam 220. The support rods 210 have a preset length. The two support rods 210 are respectively set on the top of the first clamp 110 and the second clamp 120, so that the support rods 210 are located above the pipe. In order to support the hoisting connection group 300, the crossbeam 220 is set. The crossbeam 220 is set perpendicularly to the two support rods 210, so that the crossbeam 220 and the two support rods 210 form a rectangular structure with an opening at the bottom.

[0028] In one possible implementation, the crossbeam 220 is an adjustable-length rod structure, which includes a first connecting rod 221, a second connecting rod 222, and an adjusting rod 223. The adjusting rod 223 is disposed between the first connecting rod 221 and the second connecting rod 222 and is suitable for adjusting the distance between the first connecting rod 221 and the second connecting rod 222.

[0029] Specifically, such as Figure 1As shown, when the disassembly assembly 100 removes the pipe fittings, the distance between the first clamp 110 and the second clamp 120 will change. Since the support rod 210 is located on top of the first clamp 110 and the second clamp 120, the distance between the two support rods 210 will also change. Therefore, the crossbeam 220 needs to be an adjustable length rod structure. The specific structure of the crossbeam 220 includes a first connecting rod 221, a second connecting rod 222, and an adjusting rod 223. One end of the first connecting rod 221 and the second connecting rod 222 are both provided with grooves. The two ends of the adjusting rod 223 are respectively located inside the grooves at one end of the first connecting rod 221 and the second connecting rod, so that the first connecting rod 221 and the second connecting rod 222 can slide on the adjusting rod 223.

[0030] In one possible implementation, the lifting connection assembly 300 includes a lug 310, a lifting head 320, a rope 330, and a hook 340. The lug 310 has a circular ring structure, passes through the first connecting rod 221, and is located on the adjusting rod 223. The top of the lifting head 320 is fixedly connected to the bottom of the lug 310. The rope 330 is wound around the lifting head 320. One end of the hook 340 is connected to one end of the rope 330, and the other end of the rope 330 is wound around an external pipe accessory and then connected to the other end of the hook 340. The lifting head 320 has a rhomboid structure, including two rhomboid plates, a connecting shaft, and a pulley. The connecting shaft is disposed between the two rhomboid plates, and the pulley passes through the connecting shaft and is disposed between the two rhomboid plates. It should be noted that the lifting connection assembly 300 is a very common prior art, mainly applicable to the lifting connection assemblies of this device, and therefore will not be described in detail here. It should also be noted that the pulley can also be toothed on the inside, and the rope should be selected to match the tooth. This setting allows the hoisting head 320 to be connected to an external motor without the need for manual labor, so that the tension can be applied to the rope through electricity.

[0031] In one possible implementation, the disassembly assembly 100 further includes fastening lugs 140 and plugs 150. Four fastening lugs 140 are provided, respectively disposed on the first clamp 110 and the second clamp 120, and respectively located on both sides of the external pipe. Four plugs 150 are provided, with two plugs 150 respectively disposed between the connection points of the force-applying rod 130 and the two fastening lugs 140 on the first clamp 110, and the other two plugs 150 respectively disposed between the connection points of the force-applying rod 130 and the two fastening lugs 140 on the second clamp 120.

[0032] Specifically, since both the first clamp 110 and the second clamp 120 are first arc structures and second arc structures, the fastening ear 140 is provided to fix the first arc structure and the second arc structure, and the plug is provided to facilitate the connection of the force rod 130 with the fastening ear 140.

[0033] In one possible implementation, a support base 400 is provided on the top of the first clamp 110 and the second clamp 120. The support base 400 is a cylindrical structure, and the bottom of the support rod 210 is connected to the support base 400.

[0034] Specifically, such as Figure 1 As shown, because the entire device needs to be disassembled and installed, the support base 400 is provided so that the support rod 210 can be installed and removed on the disassembly assembly 300.

[0035] In one possible implementation, reinforcing ribs are provided on both the inner and outer ends of the first clamp 110 and the second clamp 120. This arrangement makes the structure of the first clamp 110 and the second clamp 120 more stable and able to withstand strong thrust.

[0036] In one possible implementation, a support rod head 500 is provided at the top of the support rod 210. The support rod head 500 is a cylindrical structure with a through hole, through which the crossbeam 220 passes.

[0037] Specifically, the strut head 500 is also designed to facilitate the installation and disassembly of the crossbeam 220.

[0038] In use of this application, the first and second arc structures are first fixed to the pipe using fastening lugs to form the first clamp, and the second clamp is similarly fixed. The first and second clamps are respectively set at the outer ends of the flanges at both ends of the pipe fitting. Then, the four plugs are installed on the fastening lugs, and the force-applying components are installed on the two plugs on the same side. The support rods are then installed on the top of the first and second clamps through the support seats. The hoisting connection assembly is installed on the crossbeam, and the crossbeam is installed on the two support rods through the support rod heads. The distance between the first and second clamps is adjusted by the force-applying rods to create a gap between the pipe and the pipe fitting. By applying tension to the ropes, the pipe fitting is further disassembled. Then, when installing the pipe fitting using the hoisting connection assembly, alignment is performed to achieve a stable and secure state for a long time.

[0039] This application addresses the technical challenge of maintaining the stability of pipe fittings over extended periods by incorporating a disassembly assembly, support components, and a hoisting connection assembly. The disassembly assembly creates a gap between the pipe and its fittings. The support components allow for a distance between the hoisting connection assembly and the fittings, facilitating the application of tension by maintenance personnel. Once the gap is created, the hoisting connection assembly connects to the fittings, allowing them to disengage from the pipe under tension. Furthermore, this design ensures that the pipe fittings remain stable for extended periods when aligned with their flange holes during installation. This solution overcomes the significant technical difficulty of maintaining the stability of pipe fittings weighing anywhere from tens to 100-200 kilograms for extended periods.

[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in this utility model, based on the technical solution and concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A hoisting structure for disassembling pipe fittings, characterized in that, Includes disassembly assembly, support components, and hoisting connection assembly; The disassembly assembly has hollowed-out cylindrical structures at both ends and rod-shaped structures on both sides. The disassembly assembly is located at the outer end of the flange of the external pipe fitting. The support member is a rectangular structure with a bottom opening of a preset height, and the support member is disposed on the top of the disassembly assembly; The top of the hoisting connection group is connected to the support member, and the bottom of the hoisting connection group is connected to the external pipe fittings. This is suitable for the hoisting connection group to lift the external pipe fittings after the disassembly group has completed the disassembly of the external pipe fittings.

2. The hoisting arrangement for pipe fitting dismounting according to claim 1, characterized in that, The support component includes a support rod and a crossbeam; The support rod has a preset length, the lower end of the support rod is connected to the disassembly assembly, and two support rods are provided. The crossbeam is disposed at the upper end of the support rod and is perpendicular to the support rod. The two ends of the crossbeam are respectively connected to the upper ends of the two support members.

3. The hoisting arrangement for pipe fitting dismounting according to claim 2, characterized in that, The crossbeam is an adjustable-length rod-shaped structure, which includes a first connecting rod, a second connecting rod, and an adjusting rod. The adjusting rod is disposed between the first connecting rod and the second connecting rod and is suitable for adjusting the distance between the first connecting rod and the second connecting rod.

4. The hoisting arrangement for pipe fitting dismounting according to claim 3, characterized in that, The hoisting connection assembly includes a lug, a hoisting head, ropes, and hooks; The lug is a circular structure, and the lug passes through the first connecting rod and is located on the adjusting rod; The top of the lifting head is fixedly connected to the bottom of the hanging ear; The rope is wound around the lifting head; One end of the hook is connected to one end of the rope, and the other end of the rope is wound around the external pipe fitting and then connected to the other end of the hook.

5. The hoisting arrangement for pipe accessory dismounting according to claim 4, characterized in that, The lifting head has a rhomboid structure and includes two rhomboid plates, a connecting shaft, and a pulley. The connecting shaft is disposed between the two rhomboid plates, and the pulley passes through the connecting shaft and is disposed between the two rhomboid plates.

6. The hoisting arrangement for pipe accessory dismounting according to claim 5, characterized in that, The disassembly assembly includes a first clamp, a second clamp, a fastening lug, and a force-applying rod; Both the first clamp and the second clamp are cylindrical structures with openings at both ends, respectively installed on the external pipe, and the first clamp and the second clamp are respectively located at the outer ends of the flanges at both ends of the pipe fittings; The fastening lugs are provided in a quantity of four, respectively installed on the first clamp and the second clamp, and respectively located on both sides of the external pipe; The force-applying rod has a preset length, and there are two force-applying rods. The two force-applying rods are located on both sides of the external pipe fitting, and the two ends of the force-applying rods are connected to the two fastening lugs on the same side.

7. The hoisting arrangement for pipe accessory dismounting according to claim 6, characterized in that, The disassembly assembly also includes four plugs. Two plugs are respectively located between the connection points of the force-applying rod and the two fastening ears on the first clamp, and the other two plugs are respectively located between the connection points of the force-applying rod and the two fastening ears on the second clamp.

8. The hoisting arrangement for pipe accessory dismounting according to claim 7, characterized in that, A support base is provided on the top of the first clamp and the second clamp. The support base is a cylindrical structure, and the bottom of the support rod is connected to the support base.

9. The hoisting structure for disassembling pipe fittings according to claim 6, characterized in that, Reinforcing ribs are provided on both the inner and outer ends of the first clamp and the second clamp.

10. The hoisting structure for disassembling pipe fittings according to claim 3, characterized in that, A support rod head is arranged at the top of the support rod, and the support rod head is a cylindrical structure with a through hole, and the cross beam penetrates the through hole.

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