Spheroidal graphite cast iron pipe and steel pipe conversion connecting piece
By designing a conversion connection between ductile iron pipe and steel pipe, the fixed connection between the pipe body and the thrust ring and the fixed pier in the gradient mode is solved, and the blind plate force problem when the ductile iron pipe and steel pipe is achieved, and convenient connection is achieved and construction.
Patent Information
- Application Number
- CN202421223169.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When connecting ductile iron pipes and steel pipes, the steel pipes need to be specially made to make conversion parts, and due to inconsistent outer diameters, blind plate forces are easily generated, which is difficult to meet the requirements of certain design standards.
Design a ductile iron pipe and steel pipe conversion connection, including a pipe body, a first bearing port, a second bearing port and a thrust ring. The size of the pipe body is in a gradient mode, and the thrust ring is fixedly connected to the fixed pier, which can offset the blindness. Plate force.
It realizes a convenient conversion connection between ductile iron pipes and steel pipes, with a large axial expansion and radial deflection angle, which can absorb the extension after being heated on the steel pipe side, avoid blind plate forces, and simplify the construction process.
Smart Images
Figure CN222479741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of socket-and-spigot connection conversion structures of ductile iron pipes and steel pipes, in particular to a conversion connector for ductile iron pipes and steel pipes. Background Art
[0002] At present, ductile iron pipes are widely used in water pipe networks, and sometimes they are used in the same project together with steel pipes. The conventional way to connect ductile iron pipes and steel pipes is to use flange interfaces, but in some design standards, steel flanges are prohibited from being buried underground. In order to meet the standard requirements, ductile iron pipes and steel pipes can only be connected by sockets. When connecting, the steel pipe needs to be specially made into a conversion piece to connect with the ductile iron pipe, and because the outer diameter of the steel pipe is inconsistent with the outer diameter of the ductile iron pipe, a blind plate force will also be generated here.
[0003] Therefore, it is necessary to develop a ductile iron pipe and steel pipe conversion connector to solve the above problems. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a ductile iron pipe and steel pipe conversion connector, which has a simple structure, can be mass-produced, is easy to install, has a built-in thrust ring, and is suitable for conversion of ductile iron pipes and steel pipes of various calibers.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A ductile iron pipe and steel pipe conversion connector comprises a pipe body, a first socket matching the size of the ductile iron pipe is arranged at one end of the pipe body, and a second socket matching the size of the steel pipe is arranged at the other end of the pipe body; a thrust ring is arranged in the middle of the pipe body; the size of the pipe body is a gradual change mode.
[0007] A further improvement of the technical solution of the utility model is that the thickness of the thrust ring needs to meet the strength requirement for resisting the blind plate force.
[0008] A further improvement of the technical solution of the utility model is that the height of the thrust ring is the normal height of the flange.
[0009] A further improvement of the technical solution of the utility model is that after the steel pipe is installed, a fixing pier is further arranged on one side of the pipe body, and the thrust ring is fixedly connected to the fixing pier.
[0010] A further improvement of the technical solution of the utility model is that the pipe body, the first socket, the second socket and the thrust ring are cast as one piece.
[0011] A further improvement of the technical solution of the utility model is that the size of the first socket is larger than the size of the second socket.
[0012] A further improvement of the technical solution of the utility model is that the effective length L of the tube body is greater than the elongation of the steel tube side due to heating.
[0013] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:
[0014] 1. The ductile iron pipe and steel pipe conversion connector provided by the utility model has a large axial expansion and contraction amount and radial deflection angle. One side of the connector is connected to the ductile iron pipe by a socket, and the other side is connected to the steel pipe by a socket. After the pipeline is installed, the axial expansion and contraction amount of the connector can absorb the elongation of the steel pipe side after heating, and no additional compensator is required on the steel pipe side.
[0015] 2. The utility model utilizes the thrust ring provided by the connector and arranges a fixed pier on one side of the pipe body to fix the thrust ring and the fixed pier, thereby offsetting the blind plate force generated by the inconsistent outer diameters of the ductile iron pipe and the steel pipe.
[0016] 3. The utility model has a simple structure, is easy to install, saves construction period, and can be applied to the conversion connection of ductile iron pipes and steel pipes of various calibers. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 It is a schematic diagram of the structure of a ductile iron pipe and steel pipe conversion connector provided in an embodiment of the utility model;
[0019] Figure 2 This is a schematic diagram of a ductile iron pipe and steel pipe conversion connector provided in an embodiment of the utility model after installation;
[0020] Figure 3 It is a schematic diagram of the arrangement of the fixed pier in the embodiment of the utility model;
[0021] Among them, 1. first socket; 2. pipe body; 3. thrust ring; 4. second socket; 5. ductile iron pipe; 6. steel pipe; 7. fixed pier. DETAILED DESCRIPTION
[0022] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation on the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0025] The present invention is further described in detail below with reference to the accompanying drawings and embodiments:
[0026] like Figure 1-3 As shown, a ductile iron pipe and steel pipe conversion connector includes a pipe body 2, a first socket 1 matching the size of the ductile iron pipe 5 is arranged at one end of the pipe body 2, and a second socket 4 matching the size of the steel pipe 6 is arranged at the other end of the pipe body 2 to ensure the sealing function after the socket connection; a thrust ring 3 is arranged in the middle of the pipe body 2; the size of the pipe body 2 is a gradual change mode, and the sizes on both sides are matched according to the sizes of the two sockets.
[0027] Furthermore, the thickness of the thrust ring 3 needs to meet the strength requirement for resisting the blind plate force.
[0028] Furthermore, the height of the thrust ring 3 is the normal flange height.
[0029] Furthermore, after the steel pipe 6 is installed, a fixed pier 7 is provided on one side of the pipe body 2, and the thrust ring 3 is fixedly connected to the fixed pier 7. The fixed pier 7 is generally set as a concrete pier, and its main function is to fix the thrust ring 3 to resist the blind plate force caused by the inconsistent outer diameters of the ductile iron pipe 5 and the steel pipe 6.
[0030] Furthermore, the pipe body 2, the first socket 1, the second socket 4 and the thrust ring 3 are integrally cast.
[0031] Furthermore, the size of the first socket 1 is larger than that of the second socket 4, so as to facilitate connection of the ductile iron pipe 5 at one end and the steel pipe 6 at the other end.
[0032] Furthermore, the effective length L of the tube body 2 is greater than the elongation of the steel tube 6 side due to heating.
[0033] The material of the ductile iron pipe and steel pipe conversion connector provided in the present application can be a ductile iron pipe or other metals that are easy to process and manufacture.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A ductile iron pipe and steel pipe conversion connector, characterized in that: The invention comprises a pipe body (2), wherein a first socket (1) matching the size of a ductile iron pipe (5) is arranged at one end of the pipe body (2), and a second socket (4) matching the size of a steel pipe (6) is arranged at the other end of the pipe body (2); a thrust ring (3) is arranged in the middle of the pipe body (2); and the size of the pipe body (2) is in a gradual change mode.
2. A ductile iron pipe and steel pipe conversion connector according to claim 1, characterized in that: The thickness of the thrust ring (3) must meet the strength requirement for resisting the blind plate force.
3. The ductile iron pipe and steel pipe conversion connector according to claim 1, characterized in that: The height of the thrust ring (3) is the same as the normal flange height.
4. The ductile iron pipe and steel pipe conversion connector according to claim 1, characterized in that: After the steel pipe (6) is installed, a fixing pier (7) is provided on one side of the pipe body (2), and the thrust ring (3) is fixedly connected to the fixing pier (7).
5. The ductile iron pipe and steel pipe conversion connector according to claim 1, characterized in that: The pipe body (2), the first socket (1), the second socket (4) and the thrust ring (3) are cast in one piece.
6. The ductile iron pipe and steel pipe conversion connector according to claim 1, characterized in that: The size of the first socket (1) is greater than the size of the second socket (4).
7. The ductile iron pipe and steel pipe conversion connector according to claim 1, characterized in that: The effective length L of the tube body (2) is greater than the elongation of the steel tube (6) side due to heating.