Socket tool for nodular cast iron pipeline

Abstract

The utility model discloses a nodular cast iron pipeline socket tool, which belongs to the technical field of socket tools and comprises a pull rod wrench, a pull rod is arranged at the lower end of the pull rod wrench, a pull rod head is arranged at the lower end of the pull rod, a clamping head is arranged at the lower end of the pull rod head, and the clamping head is connected with the pull rod head through a rotating shaft. A first hanging lug is arranged at the upper end of the pull rod head, and second hanging lugs are arranged at the two ends of the pull rod head. The installation of the nodular cast iron pipeline can be quickly completed, tight connection after installation is ensured, and the installation efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of socket tools, specifically relating to a socket tool for ductile iron pipes. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Ductile iron pipes are widely used in water supply, drainage, and fire protection due to their advantages such as high tensile strength, high fatigue strength, and light weight. They are particularly prevalent in fire protection pipelines in subway systems. Ductile iron pipes are connected using a socket joint method. Installation is significantly affected by human factors, such as operational errors. Due to tight project schedules, varying skill levels among construction workers, and a lack of suitable specialized installation tools, leaks at the pipe socket joints often occur, leading to rework and subsequent pressure testing.

[0004] Currently, the common construction and installation method for small-diameter ductile iron pipes is to install the new pipe manually by using steel wire ropes or hoisting slings after the previous pipe has been installed and fixed. This method is time-consuming, labor-intensive, and inefficient. Moreover, due to uneven stress on the pipe, the sealing ring inside the socket is twisted and deformed, making it impossible for the pipe socket to fit completely. When the pipe is filled with water or pressure tested after installation, water leakage may occur at the pipe socket.

[0005] When this type of pipe installation results in a leak, repairing it is extremely time-consuming and labor-intensive. It requires disassembling each pipe individually at one end or at the flange connection to locate the leak, fix the leak, and then reassembling each pipe one by one, which can disrupt the normal operation of equipment for a considerable period. Because this traditional installation method relies heavily on manual labor involving multiple people pulling and dragging, not only is the construction quality unreliable, but it also poses significant safety hazards.

[0006] The main reason for the poor sealing of ductile iron pipe sockets is the lack of specialized pipe installation tools, which leads to water leakage after pipe installation, resulting in low maintenance efficiency and potential safety hazards. Furthermore, the installation process is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides a ductile iron pipe socket tool that can quickly complete the installation of ductile iron pipes, ensuring a tight connection after installation and high installation efficiency.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A ductile iron pipe socket tool includes a pull rod wrench, a pull rod at the lower end of the pull rod wrench, a pull rod head at the lower end of the pull rod, a clamping head at the lower end of the pull rod head, and the clamping head being connected to the pull rod head via a rotating shaft; a first lug at the upper end of the pull rod head, and second lugs at both ends of the pull rod head.

[0010] Furthermore, the lower end of the lever wrench is fixedly connected to one end of the lever, and the lever is symmetrically arranged at the lower end of the lever wrench.

[0011] Furthermore, the other end of the pull rod is fixedly connected to the upper end of the pull rod head.

[0012] Furthermore, the pull rod head includes a first horizontal plate and a first vertical plate, with the first vertical plate provided at both ends of the first horizontal plate, and the first horizontal plate and the first vertical plate are an integrated structure.

[0013] Furthermore, the pull rod head is fixedly connected to the first hook, and the pull rod head is fixedly connected to the second hook.

[0014] Furthermore, the width of one end of the first loop is greater than the width of the other end, and the width of one end of the second loop is greater than the width of the other end.

[0015] Furthermore, the clamping head includes a second horizontal plate and a second vertical plate, with the second vertical plate provided at both ends of the second horizontal plate, and the second horizontal plate and the second vertical plate are an integrated structure.

[0016] Furthermore, the rotating shaft passes through the side of the pull rod head and is fixedly connected to the side of the clamping head.

[0017] Furthermore, the rotating shaft and the pull rod head are movably connected.

[0018] Furthermore, the diameter of one end of the rotating shaft is larger than the diameter of the other end.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are:

[0020] This utility model features a clamping head. The clamping head's two sides and horizontal surface contact the three sides of the pipe socket to be installed, ensuring even force distribution during the connection process and preventing damage to the pipe socket. A synthetic fiber lifting sling is fixed near the other pipe socket (the fixing point is determined based on the sling's length). The end of the sling is hooked onto the first or second lug. Using leverage, a gentle pull on the lever wrench allows the pipe socket to be easily inserted into the socket through the clamping head, completing the connection. The operator can clearly observe and intuitively feel the connection. This method avoids excessive force that could damage the pipe socket, ensures even and accurate connection of two pipes, guarantees a tight seal at the pipe joint, and results in high installation efficiency. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a structural diagram of the ductile iron pipe socket tool of this utility model;

[0023] Figure 2 This is a partially enlarged structural diagram of the ductile iron pipe socket tool of this utility model;

[0024] In the diagram: 1. Lever wrench; 2. Lever; 3. Lever head; 31. First horizontal plate; 32. First vertical plate; 4. First hanging lug; 5. Second hanging lug; 6. Rotating shaft; 7. Clamping head; 71. Second horizontal plate; 72. Second vertical plate. Detailed Implementation

[0025] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0026] Currently, the common construction and installation method for small-diameter ductile iron pipes is to install the new pipe manually using steel wire ropes or slings after the previous pipe has been installed and fixed. This method is time-consuming, labor-intensive, and inefficient. Furthermore, due to uneven stress on the pipe, the sealing ring inside the socket can twist and deform, preventing a complete fit between the spigot and socket. This leads to leaks at the spigot and socket during water filling or pressure testing after installation. The main reason for the poor sealing of ductile iron pipe spigot and socket joints is the lack of specialized pipe installation tools. This results in leaks after installation, leading to inefficient maintenance, potential safety hazards, and is also time-consuming, labor-intensive, and inefficient installation.

[0027] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a ductile iron pipe socket tool, such as... Figure 1 As shown, the device includes a lever wrench 1, a lever 2 at the lower end of the lever wrench 1, a lever head 3 at the lower end of the lever 2, and a locking head 7 at the lower end of the lever head 3. The locking head 7 is connected to the lever head 3 via a rotating shaft 6. A first lug 4 is provided at the upper end of the lever head 3, and second lugs 5 are provided at both ends of the lever head 3. The first lug 4 and the second lug 5 can achieve two force application methods and can serve as backups for each other.

[0028] The lower end of the lever wrench 1 is fixedly connected to one end of the lever 2, and the lever 2 is symmetrically arranged at the lower end of the lever wrench 1. The other end of the lever 2 is fixedly connected to the upper end of the lever head 3. Through the cooperation of the lever 2 and the lever wrench 1, the effect of converting the arc force into the linear displacement of the pipeline is achieved, which is more labor-saving. Two levers 2 are provided to ensure the overall strength and prevent the lever 2 from breaking when pulled.

[0029] The pull rod head 3 includes a first horizontal plate 31 and a first vertical plate 32. The first vertical plate 32 is set at both ends of the first horizontal plate 31, and the first horizontal plate 31 and the first vertical plate 32 are an integral structure. The clamping head 7 includes a second horizontal plate 71 and a second vertical plate 72. The second vertical plate 72 is set at both ends of the second horizontal plate 71, and the second horizontal plate 71 and the second vertical plate 72 are an integral structure. The clamping head 7 and the pull rod head 3 are generally in an "n" shape. The clamping head 7 is located inside the pull rod head 3. The two sides and the horizontal surface of the clamping head 7 are in contact with the pipe socket on three sides, so that the pipe is subjected to uniform force, effectively avoiding pipe damage and ensuring accurate pipe connection position.

[0030] The dimensions of the clamping head 7 and the pull rod head 3 can be designed according to the diameter of the ductile iron pipe. If the diameter of the ductile iron pipe is large, the dimensions of the clamping head 7 and the pull rod head 3 can be increased. If the diameter of the ductile iron pipe is small, the dimensions of the clamping head 7 and the pull rod head 3 can be appropriately reduced. Similarly, the dimensions of the pull rod wrench 1, the pull rod 2, the first hanging lug 4, and the second hanging lug 5 can also be designed according to actual needs.

[0031] The pull rod head 3 is fixedly connected to the first hook 4, and the pull rod head 3 is also fixedly connected to the second hook 5. The width of one end of the first hook 4 is greater than the width of the other end, and the width of one end of the second hook 5 is greater than the width of the other end. The first hook 4 and the second hook 5 are used to hold the lifting sling. During use, the other end of the lifting sling can be hooked onto either the first hook 4 or the second hook 5 according to the pipe type, thus facilitating the selection of force and enabling rapid pipe installation.

[0032] The width of one end of the first lug 4 and the second lug 5 is greater than the width of the other end. That is, the width of the connection between the first lug 4 and the second lug 5 and the pull rod head 3 is less than the width of the other end. This is to prevent the sling from falling off after it is attached and to limit the sling.

[0033] A rotating shaft 6 passes through the side of the pull rod head 3 and is fixedly connected to the side of the clamping head 7. The rotating shaft 6 and the pull rod head 3 are movably connected. The diameter of one end of the rotating shaft 6 is larger than the diameter of the other end. A corresponding round hole is provided on the side of the pull rod head 3, through which the rotating shaft 6 passes. One end of the rotating shaft 6 is fixedly connected to the clamping head 7, thereby allowing the clamping head 7 to rotate freely relative to the pull rod head 3.

[0034] Instructions for using the socket fitting tool: The clamping head 7 should contact the two sides and the transverse surface of the pipe socket to be installed on three sides, ensuring even force distribution during the connection process and preventing damage to the pipe socket. Secure the synthetic fiber lifting sling near the other pipe socket to be installed (determine the fixing point based on the sling length). Hook the end of the sling onto the first hook 4 or the second hook 5. Adjust the sling length. One person holds the fixed end of the sling while another person gently pulls the tool lever 1. The pipe socket to be installed can then be easily inserted into the fixed pipe socket. Utilizing leverage, gently pulling the lever 1 and using the clamping head will easily connect the pipe socket. The operator can clearly observe and intuitively feel the connection. This method avoids excessive force that could damage the pipe socket, ensures even and accurate force distribution when connecting two pipes, guarantees a tight seal at the pipe joint, and results in high installation efficiency.

[0035] The socket tool solves the problem of uneven force on the socket joint caused by manual pulling, which easily leads to water leakage at the pipe joint. It is time-saving, labor-saving, portable, quick and easy to operate, saves a lot of human resources, ensures the safety of operators, and avoids the need for maintenance due to poor sealing.

[0036] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A ductile iron pipe socket tool, characterized in that, The device includes a pull lever wrench, wherein the lower end of the pull lever wrench is provided with a pull lever head, the lower end of the pull lever head is provided with a locking head, and the locking head is connected to the pull lever head via a rotating shaft; the upper end of the pull lever head is provided with a first lug, and both ends of the pull lever head are provided with second lugs.

2. The ductile iron pipe socket tool as described in claim 1, characterized in that, The lower end of the lever wrench is fixedly connected to one end of the lever, and the lever is symmetrically arranged at the lower end of the lever wrench.

3. The ductile iron pipe socket tool as described in claim 2, characterized in that, The other end of the pull rod is fixedly connected to the upper end of the pull rod head.

4. The ductile iron pipe socket tool as described in claim 1, characterized in that, The pull rod head includes a first horizontal plate and a first vertical plate, with the first vertical plate provided at both ends of the first horizontal plate, and the first horizontal plate and the first vertical plate are an integrated structure.

5. A ductile iron pipe socket tool as described in claim 4, characterized in that, The pull rod head is fixedly connected to the first hanging ear, and the pull rod head is fixedly connected to the second hanging ear.

6. A ductile iron pipe socket tool as described in claim 5, characterized in that, The width of one end of the first loop is greater than the width of the other end, and the width of one end of the second loop is greater than the width of the other end.

7. A ductile iron pipe socket tool as described in claim 1, characterized in that, The clamping head includes a second horizontal plate and a second vertical plate, with second vertical plates provided at both ends of the second horizontal plate. The second horizontal plate and the second vertical plate are an integrated structure.

8. A ductile iron pipe socket tool as described in claim 1, characterized in that, The rotating shaft passes through the side of the pull rod head and is fixedly connected to the side of the clamping head.

9. A ductile iron pipe socket tool as described in claim 8, characterized in that, The rotating shaft and the pull rod head are movably connected.

10. A ductile iron pipe socket tool as described in claim 7, characterized in that, The diameter of one end of the rotating shaft is larger than the diameter of the other end.

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