Special tool for casting iron pipeline bell-and-spigot joint green lead punching
A modular cast iron pipe joint lead punch tool with a detachable head and adjustable handle addresses the challenge of lead filler displacement in narrow spaces, improving maintenance efficiency and safety.
Patent Information
- Application Number
- CN202421515410.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-06-28
AI Technical Summary
During the installation of cast iron pipes, the lead-blue material at the socket is prone to displacement and causes leakage, and it is difficult to effectively clean in a narrow space, and traditional tools cannot meet the maintenance needs.
A special tool for cutting the cast iron pipe socket interface is designed, including electric picks, cutting the chisel, chisel head, connecting shaft and telescopic rod. The cutting the chisel is divided into two front and rear sections that can be rotatably connected, combining the telescopic rod and rectangular chisel head, equipped with a cut-out switch and positioning screw to adapt to work in narrow spaces.
Improve maintenance efficiency, avoid pipeline damage, ensure stable operation of tools in narrow spaces, and reduce labor intensity.
Smart Images
Figure CN223097547U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the water supply industry and pipeline engineering industry, and specifically relates to a special tool for caulking with lead in the socket and spigot joint of cast iron pipes. Background Technique
[0002] The materials of domestic water transmission pipelines are divided into: steel pipes, cast iron pipes, PE pipes, etc. During the installation of cast iron pipes, when passing through obstacles, reducing diameter, turning, valves, connecting with branch pipes and other positions, pipe fittings made of steel pipes and sockets need to be used to connect with cast iron pipes, and lead is used as the filling material for connection.
[0003] After the pipe fittings are made and run for a long time, due to the influence of crustal stress changes and internal water pressure in the pipeline, the filling material at the socket and spigot joint is displaced, resulting in leakage at the socket and spigot joint. During the manual maintenance process, tools cannot clean the lead material in a narrow working environment. Content of the Utility Model
[0004] In view of the above problems, the utility model provides a special tool for caulking with lead in the socket and spigot joint of cast iron pipes, which is used to solve the problems of high labor intensity when manually knocking lead materials during the maintenance process and the inability to use traditional chisels in narrow spaces.
[0005] In order to achieve the above purpose, the technical solution of the utility model is specifically as follows:
[0006] A special tool for caulking with lead in the socket and spigot joint of cast iron pipes, characterized in that: it includes an electric pick, a lead caulking chisel, a chisel head, a connecting shaft, a telescopic rod. The lead caulking chisel is divided into two parts: a front section and a rear section. The lead caulking chisel rotatably connects the front section and the rear section through a middle connecting shaft. Both ends of the telescopic rod are hinged to the upper ends of the front section and the rear section of the lead caulking chisel respectively. The cross-section of the chisel head is rectangular, and the lead caulking chisel is connected to the electric pick.
[0007] It also includes the multi-purpose interface, and a safety switch is provided at the multi-purpose interface.
[0008] A positioning screw is provided at the upper end of the telescopic rod.
[0009] The beneficial effects of the utility model are:
[0010] (1) When the utility model is in use, the lead caulking chisel is connected to the electric pick. The lead caulking chisel is divided into two parts: a front section and a rear section. The lead caulking chisel rotatably connects the front section and the rear section through a middle connecting shaft. Both ends of the telescopic rod are hinged to the upper ends of the front section and the rear section of the lead caulking chisel respectively. By adjusting the telescopic rod, the angle of the lead caulking chisel is changed, so as to meet the operation requirements in a narrow space. The cross-section of the chisel head is rectangular, which avoids damaging the pipeline by the chisel head.
[0011] (2) A safety switch is provided at the multi-purpose interface of the present utility model to prevent the connection of the lead caulking chisel from loosening during operation. The multi-purpose interface enables the lead caulking chisel to be used on various types of equipment.
[0012] (3) A positioning screw is provided at the upper end of the telescopic rod of the present utility model to solve the problem that the angle of the lead caulking chisel changes due to vibration during operation. Description of the Drawings
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is a partial schematic structural diagram of the present utility model;
[0015] Reference numerals: electric pickaxe 1, lead caulking chisel 2, safety switch 3, multi-purpose interface 4, chisel head 5, connecting shaft 6, telescopic rod 7, positioning screw 8. Detailed Embodiment
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. If not specifically specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.
[0017] As Figure 1 shown, a special tool for lead caulking of the socket joint of cast iron pipes, characterized in that it includes an electric pickaxe 1, a lead caulking chisel 2, a chisel head 5, a connecting shaft 6, a telescopic rod 7. The lead caulking chisel 2 is divided into a front section and a rear section. The front section and the rear section of the lead caulking chisel 2 are rotatably connected through a middle connecting shaft 6. The two ends of the telescopic rod 7 are respectively hinged to the upper ends of the front section and the rear section of the lead caulking chisel 2. The cross-section of the chisel head 5 is rectangular, and the lead caulking chisel 2 is connected to the electric pickaxe 1.
[0018] As Figure 1 shown, a multi-purpose interface 4, and a safety switch 3 is provided at the multi-purpose interface 4.
[0019] As Figure 2 shown, a positioning screw 8 is provided at the upper end of the telescopic rod 7.
[0020] When the utility model is in use, the lead caulking chisel 2 is generally made of chrome vanadium steel, and the cross-section of the chisel head is rectangular to avoid damage to the pipeline caused by the chisel head. The lead caulking chisel 2 is installed on the electric pick 1 through the multi-purpose interface 4, and the safety switch 3 is turned off to prevent the lead caulking chisel 2 from falling. When caulking the lead, there is a certain angle between the lead caulking chisel and the pipeline. The length of the telescopic rod 7 is adjusted according to the on-site situation to form a certain angle with the lead caulking chisel. The positioning screw 8 is tightened, and the chisel head 5 can be parallel to the pipe wall. When it is close to the pipe wall, the electric pick 1 is started to impact the lead, and the lead caulking of the cast iron pipeline is completed. A special tool for lead caulking of the socket joint of the cast iron pipeline changes the traditional manual caulking method and greatly improves the pipeline maintenance efficiency.
[0021] The embodiments described above are only used to describe the preferred mode of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations, variations, modifications, and substitutions made by those of ordinary skill in the art to the technical solutions of the utility model shall fall within the protection scope determined by the claims of the utility model.
Claims
1. A special tool for caulking lead at the socket joint of cast iron pipes, characterized in that: It includes an electric pickaxe (1), a lead caulking chisel (2), a chisel head (5), a connecting shaft (6), a telescopic rod (7). The lead caulking chisel (2) is divided into a front section and a rear section. The lead caulking chisel (2) rotatably connects the front section and the rear section through a middle connecting shaft (6). Both ends of the telescopic rod (7) are hinged to the upper ends of the front section and the rear section of the lead caulking chisel (2). The cross-section of the chisel head (5) is rectangular, and the lead caulking chisel (2) is connected to the electric pickaxe (1).
2. The special tool for caulking lead at the socket joint of cast iron pipes according to claim 1, characterized in that: It further includes a multi-purpose interface (4), and an insurance switch (3) is provided at the multi-purpose interface (4).
3. A special tool for caulking lead at the socket joint of cast iron pipes according to claim 1, characterized in that: A positioning screw (8) is provided at the upper end of the telescopic rod (7).