Dredging pipe convenient to connect

Abstract

The utility model discloses a dredge pipe convenient to connect, which is characterized in that a rotatable female end flange piece and a rotatable male end flange piece are respectively arranged at two ends of the dredge pipe, and are matched with an annular positioning groove on a connecting piece and an annular positioning boss on the flange piece to realize primary positioning. Meanwhile, the inclined guide face of the inner wall is matched with the guide ring, the guide effect is achieved during connection, and the flange plates can be in butt joint rapidly. In addition, bolt holes are formed in the flange plate in a circumferential array and locked through bolts after being in butt joint, and tight connection is ensured. The dredging pipe does not need to be rotated manually and effortlessly in the connecting process, the connecting efficiency is effectively improved, the labor intensity is reduced, the sealing performance and stability are guaranteed through multiple positioning structures, and the dredging pipe is suitable for various dredging projects and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of dredging equipment technology, specifically to a dredging pipe that is easy to connect. Background Technology

[0002] In dredging projects, dredging pipes are crucial components for transporting mixtures of mud, sand, and gravel, and the performance of their connection structure significantly impacts project efficiency and quality. Currently, most traditional dredging pipes use flange connections. During the connection process, the bolt holes on the connecting flanges must be precisely aligned before the next tightening operation can proceed. However, dredging pipes are quite heavy, and when bolt holes are misaligned, operators need to expend considerable effort to rotate the heavy pipe to align the bolt holes. This entire connection process is not only time-consuming but also extremely labor-intensive, significantly reducing construction efficiency. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problem to be solved by this utility model is the difficulty in aligning bolt holes and the time and effort required when connecting traditional dredging pipes.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model provides the following technical solution:

[0007] A dredging pipe with convenient connection includes a dredging pipe body, a connector, a female flange, and a male flange. The female flange is movably mounted on the connector. The connector and the female flange are located at the same end of the dredging pipe body, and the male flange is located at the end of the dredging pipe body away from the female flange.

[0008] The connector includes a connecting round tube part and a docking part, which are integrally formed. The docking part has an annular structure, and an annular positioning groove is provided on the end face of the docking part away from the male flange.

[0009] The female end flange includes a first connecting flange and an outer connecting pipe one sleeved on the outer ring of the connecting round pipe portion. The first connecting flange is inherently connected to the outer connecting pipe one, and an annular recessed groove corresponding to the mating portion is provided on the outer end face of the first connecting flange. The female end flange can rotate on the connecting member one.

[0010] The male end flange includes a second connecting flange and an external connecting pipe 2 that is inherently connected to the dredging pipe body. The second connecting flange and the external connecting pipe 2 are integrally formed. An annular positioning boss matching the annular positioning groove is provided on the end face of the second connecting flange away from the first connecting flange.

[0011] Furthermore, the end face of the mating portion away from the male flange is flush with the end face of the first connecting flange away from the male flange.

[0012] Furthermore, the inner wall of the connecting round tube portion near the end of the first connecting flange is provided with an inclined guide surface.

[0013] Furthermore, the end of the second external connecting pipe away from the first connecting member is provided with a guide ring, and the outer wall of the guide ring matches the inclined guide surface.

[0014] Furthermore, the first connecting flange and the second connecting flange are provided with bolt holes for mating and locking, and the prime number of bolt holes are arranged in a circumferential array.

[0015] (III) Beneficial Effects

[0016] The beneficial effects of this utility model are:

[0017] By using the guide surface and guide ring to guide each other, as well as the rotatable female flange, the problem of bolt holes being difficult to align during traditional dredging pipe connection is effectively solved. There is no need for manual labor to rotate the dredging pipe, which significantly improves connection efficiency and reduces construction labor intensity. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the connector of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the female end flange of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the male end flange of this utility model;

[0022] Figure 5 This is a cross-sectional view of the female and male flange components of this utility model after their chain structure.

[0023] The markings in the diagram are: 1-Dredging pipe body, 2-Connector 1, 201-Connecting round pipe part, 202-Dating part, 203-Annular positioning groove, 204-Slanted guide surface, 3-Female end flange, 301-First connecting flange, 302-Outer connecting pipe 1, 303-Annular recessed groove, 4-Male end flange, 401-Second connecting flange, 402-Outer connecting pipe 2, 403-Annular positioning boss, 404-Guide ring, 5-Bolt hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Please see Figures 1-5 The diagram illustrates a conveniently connected dredging pipe, primarily composed of a dredging pipe body 1, a connector 2, a female end flange 3, and a male end flange 4. The female end flange 3 is rotatably mounted on the connector 2, and the connector 2 and the female end flange 3 are installed together at the same end of the dredging pipe body 1. The male end flange 4 is installed at the end of the dredging pipe body 1 furthest from the female end flange 3.

[0027] The connector 2 is an integrally formed structure, comprising a connecting circular tube portion 201 and a mating portion 202. The mating portion 202 is annular, and an annular positioning groove 203 is provided on its end face away from the male flange 4. The female flange 3 includes a first connecting flange 301 and an outer connecting tube 302 sleeved on the outer ring of the connecting circular tube portion 201. The first connecting flange 301 is fixedly connected to the outer connecting tube 302, and an annular recessed groove 303 corresponding to the mating portion 202 is provided on the outer end face of the first connecting flange 301. This structural design allows the female flange 3 to rotate flexibly on the connector 2, creating conditions for automatic alignment of bolt holes.

[0028] The male end flange 4 consists of a second connecting flange 401 and an outer connecting pipe 402 that is fixedly connected to the dredging pipe body 1. The second connecting flange 401 and the outer connecting pipe 402 are integrally formed. On the end face of the second connecting flange 401 away from the first connecting flange 301, there is an annular positioning boss 403 that matches the annular positioning groove 203.

[0029] Furthermore, the end face of the mating part 202 away from the male flange 4 is flush with the end face of the first connecting flange 301 away from the male flange 4. This ensures a tight fit between the two flanges during connection and improves connection stability. The inner wall of the connecting pipe part 201 near the first connecting flange 301 is provided with an inclined guide surface 204, and the end of the outer connecting pipe 2 402 away from the connecting part 2 is provided with a guide ring 404. The outer wall of the guide ring 404 is adapted to the inclined guide surface 204. The two work together to provide precise guidance during the connection process, assisting the male flange 4 to quickly and accurately mate with the female flange 3.

[0030] Both the first connecting flange 301 and the second connecting flange 401 have multiple bolt holes 5 arranged in a circumferential array. By passing bolts through these bolt holes 5 and tightening them, the two flanges are securely locked together, thus completing the connection between the dredging pipes.

[0031] Working principle

[0032] When connecting two dredging pipes, first align the male flange 4 of one dredging pipe with the female flange 3 of the other dredging pipe. At this time, the guide ring 404 on the male flange 4 cooperates with the inclined guide surface 204 on the inner wall of the connecting circular pipe portion 201 in the female flange 3, providing guidance and allowing the male flange 4 to be quickly and accurately inserted into the female flange 3. During insertion, since the female flange 3 can rotate on the connector 2, when the male flange 4 contacts the female flange 3, the female flange 3 is manually rotated and adjusted according to the position of the male flange 4, gradually aligning the bolt holes 5 on the first connecting flange 301 and the second connecting flange 401.

[0033] Simultaneously, the annular positioning boss 403 on the male flange 4 will be embedded in the annular positioning groove 203 of the mating part 202 of the connector 2, achieving initial positioning and ensuring the accuracy and stability of the connection. After the bolt holes 5 on the two flanges are fully aligned, bolts are passed through the bolt holes 5 in sequence and the nuts are tightened to make the first connecting flange 301 and the second connecting flange 401 fit tightly together, thereby achieving a firm connection between the two dredging pipes.

[0034] During the connection process, the engagement of the annular positioning boss 403 and the annular positioning groove 203, as well as the engagement of the annular recessed groove 303 and the mating part 202, effectively prevents misalignment between the flanges, further ensuring the sealing and stability of the connection and avoiding leakage during dredging operations. When it is necessary to disassemble the dredging pipe, simply unscrew the bolts and pull the male flange 4 out of the female flange 3; the operation is simple and convenient.

[0035] The embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dredging pipe that is easy to connect, characterized in that: The dredging pipe body (1), connector (2), female flange (3) and male flange (4) are included. The female flange (3) is movably mounted on the connector (2). The connector (2) and the female flange (3) are located at the same end of the dredging pipe body (1). The male flange (4) is located at the end of the dredging pipe body (1) away from the female flange (3). The connector 1 (2) includes a connecting round tube part (201) and a docking part (202), which are integrally formed. The docking part (202) has an annular structure, and an annular positioning groove (203) is provided on the end face of the docking part (202) away from the male end flange (4). The female end flange (3) includes a first connecting flange (301) and an outer connecting pipe (302) sleeved on the outer ring of the connecting round pipe (201). The first connecting flange (301) is inherently connected to the outer connecting pipe (302), and an annular recessed groove (303) corresponding to the mating part (202) is provided on the outer end face of the first connecting flange (301). The female end flange (3) can rotate on the connecting part (2). The male end flange (4) includes a second connecting flange (401) and an external connecting pipe (402) that is inherently connected to the dredging pipe body (1). The second connecting flange (401) and the external connecting pipe (402) are integrally formed. The second connecting flange (401) has an annular positioning boss (403) that matches the annular positioning groove (203) on one end face away from the first connecting flange (301).

2. The dredging pipe with convenient connection according to claim 1, characterized in that: The end face of the mating part (202) away from the male flange (4) is flush with the end face of the first connecting flange (301) away from the male flange (4).

3. The dredging pipe with convenient connection according to claim 2, characterized in that: The inner wall of the connecting round tube part (201) near the first connecting flange (301) is provided with an inclined guide surface (204).

4. The dredging pipe with convenient connection according to claim 3, characterized in that: The outer connecting pipe 2 (402) is provided with a guide ring (404) at one end away from the connector 1 (2), and the outer wall of the guide ring (404) matches the inclined guide surface (204).

5. A dredging pipe with convenient connection according to claim 4, characterized in that: The first connecting flange (301) and the second connecting flange (401) are provided with bolt holes (5) for mating and locking, and the prime number of bolt holes (5) are arranged in a circular array.

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