Nodular cast iron pipe fitting hoisting equipment

Abstract

The utility model discloses nodular cast iron pipe fitting hoisting equipment which comprises a middle core hoisting ring, side ropes are symmetrically arranged on the two sides of the middle core hoisting ring, external auxiliary hoisting rings are fixedly arranged at the tail ends of the side ropes, and nodular cast iron pipe fitting hoisting mechanisms are arranged on the external auxiliary hoisting rings. The opening directions of the two nodular cast iron pipe fitting hoisting mechanisms are opposite; a unique clamping structure guarantees safety, and the clamping structure is very ingenious in design. The middle pressing rod and the pressing sleeve work cooperatively, pressure is applied from the outer wall of the pipe fitting, and firm clamping is achieved. Meanwhile, the protection friction sleeve provides support from the inner wall of the pipe fitting, and internal and external double guarantees are formed. The operation is simple and convenient, and the cost is saved; a user only needs to simply rotate the handle screw rod, so that the pipe fitting can be easily clamped and loosened. The operation mode does not need complex processes and tedious steps, so that the operation time is greatly saved.

Description

Technical Field

[0001] The utility model relates to hoisting equipment, in particular to ductile iron pipe fitting hoisting equipment. Background Art

[0002] In the field of traditional ductile iron pipe hoisting, safety and operational efficiency have always been the two core issues. The previous hoisting equipment lacked an effective inner and outer wall clamping mechanism in design, which caused the pipes to slip easily during the hoisting process, especially in severe weather conditions such as strong winds. The safety of the pipes could not be fully guaranteed. This not only increased the safety risks at the construction site, but also may cause serious casualties and property losses.

[0003] Insufficient safety: There is a lack of effective inner and outer wall clamping mechanism, and pipe fittings are prone to slipping during lifting, especially in severe weather conditions, which increases construction risks.

[0004] Therefore, there is an urgent need for a better ductile iron pipe fitting lifting equipment on the market. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a ductile iron pipe fitting hoisting device.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is a ductile iron pipe fitting hoisting device: comprising a central core hoisting ring, side ropes are symmetrically arranged on both sides of the central core hoisting ring, external auxiliary hoisting rings are fixedly arranged at the ends of the side ropes, and a ductile iron pipe fitting hoisting mechanism is arranged on the external auxiliary hoisting ring; the opening directions of the two ductile iron pipe fitting hoisting mechanisms are opposite;

[0007] The ductile iron pipe fitting hoisting mechanism comprises a lower core plate body, an upper core plate body is fixedly provided at the outer end of the lower core plate body, and a lower end of the upper core plate body is fixedly connected to the outer end of the lower core plate body;

[0008] A first hinge seat is fixedly provided on the upper side of the lower part of the upper core plate body, a long core hole is provided in the middle of the upper core plate body, a middle pressing rod is rotatably provided in the middle of the long core hole through the connection mode of a hinge shaft, the middle part of the middle pressing rod and the middle part of the long core hole are rotatably matched, the upper part of the middle pressing rod extends to the top of the upper core plate body, a second hinge seat is fixedly provided on the upper end of the middle pressing rod, a joint bearing seat is provided on the first hinge seat, a nut is provided on the second hinge seat, a handle screw is provided on the nut, the handle screw and the nut are threadedly matched, and the lower end of the screw part of the handle screw is matched with the joint bearing seat; the lower part of the middle pressing rod extends to the top of the upper core plate body.

[0009] As an improvement, a pressing sleeve is fixedly provided at the lower part of the middle pressing rod.

[0010] As an improvement, the pressing sleeve and the lower part of the middle pressing rod are fixedly connected by bonding.

[0011] As an improvement, the pressing sleeve is made of rubber.

[0012] As an improvement, a core lifting through hole is provided on the upper portion of the upper core plate body, and the external auxiliary lifting ring passes through the core lifting through hole to connect with the ductile iron pipe fitting lifting mechanism.

[0013] As an improvement, the lower end of the upper core plate body and the outer end of the lower core plate body are fixedly connected by welding.

[0014] As an improvement, the angle between the upper core plate body and the lower core plate body is an acute angle.

[0015] As an improvement, a protective friction sleeve is fixedly provided on the lower core plate.

[0016] As an improvement, the material of the protective friction sleeve is rubber, and the protective friction sleeve and the lower core plate body are fixedly connected by bonding.

[0017] As an improvement, the upper side of the protective friction sleeve is provided with friction grooves, and the number of the friction grooves is several and they are evenly arranged along the extension direction of the protective friction sleeve.

[0018] Compared with the prior art, the advantages of the utility model are: the unique clamping structure ensures safety: the clamping structure design is very clever. The middle pressing rod and the pressing sleeve work together to apply pressure from the outer wall of the pipe fitting to achieve firm clamping. At the same time, the protective friction sleeve provides support from the inner wall of the pipe fitting, forming a double protection inside and outside.

[0019] Easy operation and cost saving: users only need to rotate the handle screw to easily clamp and loosen the pipe. This operation method does not require complicated processes and tedious steps, which greatly saves operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structure diagram of a ductile iron pipe fitting lifting device of the utility model. Figure 1 .

[0021] Figure 2 This is a three-dimensional structure diagram of a ductile iron pipe fitting lifting device of the utility model. Figure 2 .

[0022] Figure 3 yes Figure 1Schematic diagram of the local enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0027] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In conjunction with the accompanying drawings, a ductile iron pipe fitting lifting device comprises a central core lifting ring 1, side ropes 2 are symmetrically arranged on both sides of the central core lifting ring 1, external auxiliary lifting rings 3 are fixedly arranged at the ends of the side ropes 2, and a ductile iron pipe fitting lifting mechanism 4 is arranged on the external auxiliary lifting ring 3; the opening directions of the two ductile iron pipe fitting lifting mechanisms 4 are opposite; the ductile iron pipe fitting lifting mechanism 4 comprises a lower core plate body 5, an upper core plate body 6 is fixedly arranged at the outer end of the lower core plate body 5, and the lower end of the upper core plate body 6 is fixedly connected to the outer end of the lower core plate body 5 The lower end of the upper core plate 6 and the outer end of the lower core plate 5 are fixedly connected by welding; the angle between the upper core plate 6 and the lower core plate 5 is an acute angle; a protective friction sleeve 7 is fixedly provided on the lower core plate 5, the material of the protective friction sleeve 7 is rubber, and the protective friction sleeve 7 and the lower core plate 5 are fixedly connected by bonding; the upper side of the protective friction sleeve 7 is provided with friction grooves 8, the number of the friction grooves 8 is several and is evenly arranged along the extension direction of the protective friction sleeve 7. The upper part of the upper core plate 6 is provided with a core lifting through hole 9, and the external auxiliary lifting ring 3 passes through the core lifting through hole 9 to play the role of connecting with the ductile iron pipe fitting lifting mechanism 4. A first hinge seat 10 is fixedly provided on the upper side of the lower part of the upper core plate body 6, a long core hole 11 is provided in the middle of the upper core plate body 6, a middle pressing rod 12 is rotatably provided in the middle of the long core hole 11 through a connection method of a hinge shaft, the middle of the middle pressing rod 12 and the middle of the long core hole 11 are rotatably matched, the upper part of the middle pressing rod 12 extends to the top of the upper core plate body 6, and a second hinge seat 13 is fixedly provided at the upper end of the middle pressing rod 12, and a joint bearing seat 1 is provided on the first hinge seat 10. 4. A nut 15 is provided on the second hinge seat 13, and a handle screw 16 is provided on the nut 15. The handle screw 16 and the nut 15 are threadedly matched, and the lower end of the screw part of the handle screw 16 is matched with the joint bearing seat 14; the lower part of the middle pressing rod 12 extends to above the upper core plate body 6, and a pressing sleeve 17 is fixedly provided at the lower part of the middle pressing rod 12. The pressing sleeve 17 and the lower part of the middle pressing rod 12 are fixedly connected by bonding, and the material of the pressing sleeve 17 is rubber.

[0029] The opening directions of the two ductile iron pipe hoisting mechanisms 4 are opposite to each other, so that the lower core plate 5 is inserted into the opening of the end of the ductile iron pipe, and the upper core plate 6 is against the opening of the end of the ductile iron pipe. The user uses the handle screw 16 to rotate the middle pressing rod 12, so that the pressing sleeve 17 fixed at the lower part of the middle pressing rod 12 presses the outer wall of the opening of the end of the ductile iron pipe, which plays a role in clamping the end of the ductile iron pipe, ensuring the safety and stability of the end of the ductile iron pipe when it is hoisted. The inner wall of the opening of the end of the ductile iron pipe is supported by the protective friction sleeve 7, which has a good protective effect.

[0030] Detailed description structure:

[0031] Located in the center is the central core lifting ring 1, which is the key component for connecting the entire lifting equipment with the external lifting machinery. Side ropes 2 are symmetrically distributed on both sides of the central core lifting ring 1, which play the role of connecting and dispersing the force. The ends of the side ropes 2 are fixed with external auxiliary lifting rings 3, and the external auxiliary lifting rings 3 are installed with ductile iron pipe lifting mechanisms 4.

[0032] The ductile iron pipe fitting hoisting mechanism 4 is an important part that directly contacts the pipe fitting and realizes clamping and hoisting. It comprises a lower core plate body 5 and an upper core plate body 6, the ends of which are firmly connected together by welding, and the angle is an acute angle.

[0033] On the lower core plate 5, a protective friction sleeve 7 is fixed by bonding. The protective friction sleeve 7 is made of rubber, and a plurality of friction grooves 8 evenly distributed along the extension direction are arranged on the upper side of the surface, and these grooves can increase the friction force and improve the stability of the hoisting.

[0034] The upper part of the upper core plate body 6 is provided with a core lifting through hole 9, and the external auxiliary lifting ring 3 passes through this through hole to achieve connection with the ductile iron pipe lifting mechanism 4. A first hinge seat 10 is fixedly arranged on the upper side of the lower part of the upper core plate body 6, and a long core hole 11 is arranged in the middle part, and a middle pressing rod 12 is rotatably installed in the middle part of the long core hole 11 through a hinge axis. The middle part of the middle pressing rod 12 can flexibly rotate and cooperate with the middle part of the long core hole 11, and its upper part extends to the top of the upper core plate body 6, and a second hinge seat 13 is fixedly arranged at the upper end. A joint bearing seat 14 is installed on the first hinge seat 10, and a nut 15 is arranged on the second hinge seat 13. The nut 15 is matched with a handle screw 16, and the lower end of the screw part of the handle screw 16 is matched with the joint bearing seat 14. The lower part of the middle pressing rod 12 extends to the top of the upper core plate body 6, and a pressing sleeve 17 made of rubber is fixed by bonding.

[0035] In actual use, two ductile iron pipe hoisting mechanisms 4 are arranged opposite to each other, the lower core plate 5 is inserted into the opening of the pipe end, and the upper core plate 6 is against the opening. The user rotates the handle screw 16 to drive the middle pressing rod 12 to rotate, so that the pressing sleeve 17 presses the outer wall of the pipe to achieve clamping. At the same time, the inner wall of the pipe is supported and protected by the protective friction sleeve 7, thereby ensuring the safe and stable lifting of the ductile iron pipe.

[0036] Detailed description of usage:

[0037] First, the two ductile iron pipe fitting hoisting mechanisms 4 are adjusted to ensure that their opening directions are placed relative to each other. The purpose of this operation is to clamp the pipe fittings at both ends at the same time to ensure the balance and stability of the clamping.

[0038] Next, carefully insert the lower core plate 5 into the end opening of the ductile iron pipe. Pay attention to the alignment during insertion to ensure smooth and accurate insertion. At the same time, the upper core plate 6 should be tightly against the end opening of the ductile iron pipe to form an effective support and barrier.

[0039] Then, the user starts to operate the handle screw 16. By rotating the handle screw 16 clockwise or counterclockwise, a force is applied to the middle pressing rod 12 to rotate it. For example, when the handle screw 16 is rotated clockwise, the middle pressing rod 12 will rotate in a specific direction.

[0040] As the middle pressing rod 12 rotates, the pressing sleeve 17 fixed at its lower part will gradually approach and finally press the outer wall of the opening at the end of the ductile iron pipe fitting. This pressing process is carried out step by step until a sufficient clamping force is reached, thereby achieving a firm clamping of the end of the pipe fitting. In this process, the degree of clamping can be judged by observation and feeling to ensure that the clamping force is moderate, neither too loose to cause the pipe fitting to fall off, nor too tight to damage the pipe fitting.

[0041] During the whole operation, the inner wall of the opening at the end of the ductile iron pipe is supported by the protective friction sleeve 7. The protective friction sleeve 7 can not only provide a certain friction force to prevent the pipe from sliding during the lifting process, but also play a role of buffering and protection to prevent the inner wall of the pipe from directly contacting with hard metal parts and being damaged.

[0042] After confirming that the clamping is correct, you can connect it to the lifting machinery through the central core lifting ring 1. When connecting, make sure that the connection is firm and reliable. During the lifting process, the central core lifting ring 1, the side ropes 2 and the external auxiliary lifting rings 3 will work together to share the weight of the pipe fittings and ensure that the pipe fittings can be lifted safely and stably.

[0043] Through the above series of careful and accurate operating steps, the ductile iron pipe fittings can be safely and stably lifted using the ductile iron pipe fittings lifting equipment.

[0044] Describe the advantages in detail:

[0045] Unique clamping structure ensures safety:

[0046] This clamping structure is very cleverly designed. The middle pressing rod 12 and the pressing sleeve 17 work together to apply pressure from the outer wall of the pipe fitting to achieve a firm clamping. At the same time, the protective friction sleeve 7 provides support from the inner wall of the pipe fitting, forming a double protection inside and outside. During the hoisting process, no matter what kind of shaking or unexpected situation is encountered, the pipe fitting can be effectively prevented from slipping. This design greatly reduces the risk of pipe fittings falling, avoids possible casualties and property losses, and provides extremely high safety for the entire hoisting operation. For example, at a construction site, when using this hoisting equipment to lift ductile iron pipe fittings, even in severe weather conditions such as strong winds, it can ensure that the pipe fittings are stably lifted and there will be no dangerous situation of accidental falling.

[0047] Easy operation and cost saving:

[0048] The user only needs to simply rotate the handle screw 16 to easily clamp and loosen the pipe fittings. This operation method does not require complicated processes and cumbersome steps, which greatly saves operation time. Compared with traditional lifting equipment, it may require the collaboration of multiple people and multiple steps to complete the clamping operation, while this equipment can be completed quickly by one person. This not only saves time, but also reduces manpower input and reduces labor costs. Take a small factory as an example. A large number of ductile iron pipe fittings need to be hoisted every day. If this easy-to-operate equipment is used, more hoisting tasks can be completed within the same working time, thereby improving production efficiency.

[0049] Protective friction sleeve ensures the quality of pipe fittings:

[0050] The provision of the protective friction sleeve 7 has multiple important functions. On the one hand, it can increase the friction with the inner wall of the pipe fitting, further enhance the clamping effect, and ensure the stability of the pipe fitting during the hoisting process. On the other hand, more importantly, it avoids direct contact between the inner wall of the pipe fitting and hard metal parts. This means that during the hoisting process, the inner wall of the pipe fitting will not be damaged by wear, scratches, etc. due to friction and collision. Thereby effectively ensuring the quality and integrity of the pipe fitting, so that the pipe fitting still maintains good performance and appearance after hoisting. For example, in the field of precision machinery manufacturing, the quality requirements for ductile iron pipe fittings are extremely high. The design of this protective friction sleeve can ensure that there will be no quality problems with the pipe fittings during the hoisting process, meeting the needs of high-precision production.

[0051] Safety and efficiency bring economic benefits:

[0052] The safe and efficient characteristics enable smooth production and construction. Since downtime, repairs and replacements due to accidents or pipe damage are reduced, production delays and additional costs are avoided. Enterprises can complete orders on time, improve the reliability of product delivery, and enhance market competitiveness. For example, in large-scale engineering projects, if ductile iron pipes are damaged due to problems with the lifting equipment, it will not only take time and money to re-purchase or repair the pipes, but may also delay the progress of the entire project and cause huge economic losses. The use of this safe and efficient lifting equipment can effectively avoid such problems and create greater economic benefits for enterprises.

[0053] Describe the advantages in detail:

[0054] Through the unique clamping structure, including the middle pressing rod 12 and the pressing sleeve 17 pressing on the outer wall of the pipe, and the protective friction sleeve 7 supporting the inner wall of the pipe, the pipe can be effectively prevented from slipping or being damaged during the lifting process, greatly improving the safety of the lifting operation.

[0055] The user can tighten and loosen the pipe fitting by simply rotating the handle screw 16, which is convenient and quick to operate, saving time and labor costs.

[0056] The provision of the protective friction sleeve 7 can not only increase the friction force, but also prevent the inner wall of the pipe from directly contacting the metal parts and causing wear or scratches, thereby ensuring the quality and integrity of the pipe.

[0057] Safe and efficient lifting equipment can ensure the smooth progress of production and construction, reduce economic losses caused by accidents or damage, and thus bring greater economic benefits to the enterprise.

[0058] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A ductile iron pipe fitting hoisting device, characterized in that: It comprises a central core lifting ring (1), side ropes (2) are symmetrically arranged on both sides of the central core lifting ring (1), external auxiliary lifting rings (3) are fixedly arranged at the ends of the side ropes (2), and a ductile iron pipe fitting lifting mechanism (4) is arranged on the external auxiliary lifting ring (3); the opening directions of the two ductile iron pipe fitting lifting mechanisms (4) are opposite to each other; The ductile iron pipe fitting hoisting mechanism (4) comprises a lower core plate (5), an upper core plate (6) is fixedly provided at the outer end of the lower core plate (5), and the lower end of the upper core plate (6) is fixedly connected to the outer end of the lower core plate (5); A first hinge seat (10) is fixedly provided on the upper side of the lower part of the upper core plate (6); a long core hole (11) is provided in the middle of the upper core plate (6); a middle pressing rod (12) is rotatably provided in the middle of the long core hole (11) through a connection method of a hinge shaft; the middle of the middle pressing rod (12) and the middle of the long core hole (11) are rotatably matched; the upper part of the middle pressing rod (12) extends to the top of the upper core plate (6); the upper part of the middle pressing rod (12) A second hinge seat (13) is fixedly provided at the end of the part, a joint bearing seat (14) is provided on the first hinge seat (10), a nut (15) is provided on the second hinge seat (13), a handle screw (16) is provided on the nut (15), the handle screw (16) and the nut (15) are threadedly matched, and the lower end of the screw part of the handle screw (16) is matched with the joint bearing seat (14); the lower part of the middle pressing rod (12) extends to the top of the upper core plate (6).

2. The ductile iron pipe hoisting equipment according to claim 1 is characterized in that: A pressing sleeve (17) is fixedly provided at the lower part of the middle pressing rod (12).

3. The ductile iron pipe hoisting equipment according to claim 2 is characterized in that: The pressing sleeve (17) and the lower part of the middle pressing rod (12) are fixedly connected by bonding.

4. The ductile iron pipe hoisting equipment according to claim 3 is characterized in that: The pressing sleeve (17) is made of rubber.

5. The ductile iron pipe fitting hoisting equipment according to claim 4, characterized in that: The upper part of the upper core plate (6) is provided with a core lifting through hole (9), and the external auxiliary lifting ring (3) passes through the core lifting through hole (9) to connect with the ductile iron pipe fitting lifting mechanism (4).

6. The ductile iron pipe hoisting equipment according to claim 1, characterized in that: The lower end of the upper core plate body (6) and the outer end of the lower core plate body (5) are fixedly connected by welding.

7. The ductile iron pipe fitting hoisting equipment according to claim 6, characterized in that: The angle between the upper core plate (6) and the lower core plate (5) is an acute angle.

8. The ductile iron pipe fitting hoisting equipment according to claim 1, characterized in that: A protective friction sleeve (7) is fixedly provided on the lower core plate body (5).

9. The ductile iron pipe hoisting equipment according to claim 8, characterized in that: The material of the protective friction sleeve (7) is rubber, and the protective friction sleeve (7) and the lower core plate body (5) are fixedly connected by bonding.

10. The ductile iron pipe hoisting equipment according to claim 9, characterized in that: The upper side of the protective friction sleeve (7) is provided with friction grooves (8), and the number of the friction grooves (8) is several and they are evenly arranged along the extension direction of the protective friction sleeve (7).

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