Movable joint assembly for pipeline connection

Abstract

The utility model discloses a movable joint assembly for pipeline connection, which belongs to the field of pipeline connection and comprises a first connecting pipeline and a second connecting pipeline, a connecting part is arranged outside the connecting end of the first connecting pipeline and the second connecting pipeline, and a butt joint part and a limiting sleeve are arranged outside the connecting end of the second connecting pipeline and the first connecting pipeline. The connecting part wraps the butt joint part, the limiting sleeve wraps the connecting part, one side of the exterior of the limiting sleeve is in threaded connection with a nut, a plurality of limiting grooves are formed in the inner wall of the connecting part, and a plurality of butt joint protrusions matched with the limiting grooves are arranged on the outer surface of the butt joint part; by arranging the nut, the turnover plate and the threaded part, when a user installs or disassembles the pipeline, connection or separation of the pipeline can be achieved only by rotating the nut, the problem that in the prior art, the whole pipeline needs to be rotated, and consequently operation is troublesome is solved, and therefore connection convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline connection technology, and specifically relates to a flexible joint assembly for pipeline connection. Background Technology

[0002] A union, also known as a "fitter," is a pipe fitting used to connect two pipe sections with the same nominal diameter.

[0003] Utility model patent CN 218267771 U discloses a pipe fitting, including a female sleeve, a male fitting, and a female fitting. The female sleeve is located outside the female fitting, with one end of the female fitting inside the female sleeve. One end of the male fitting has a connecting part that screws into the female sleeve. An external hexagonal sleeve is provided on the outside of the female sleeve, and a receiving groove is formed between the external hexagonal sleeve and the outside of the female sleeve. A rotating plate is rotatably connected inside the receiving groove. One end of the rotating plate passes through a connecting post, and both ends of the connecting post are inserted into the external hexagonal sleeve. This utility model, by designing a rotating plate, allows the user to rotate the plate when the pipe is near a corner, placing a hollow pipe on the outside of the rotating plate. The hollow pipe drives the rotating plate to rotate, thereby rotating the female sleeve for assembly and disassembly.

[0004] In the above cases, when the nut needs to be rotated, the entire pipe needs to be rotated, which makes the rotation and disassembly very troublesome and reduces work efficiency. Therefore, this application proposes a flexible joint assembly for pipe connection. Utility Model Content

[0005] The purpose of this invention is to provide a fitting assembly for pipe connections to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe connection fitting assembly, comprising a first connecting pipe and a second connecting pipe, wherein the connecting ends of the first connecting pipe and the second connecting pipe are provided with a connecting portion, and the connecting ends of the second connecting pipe and the first connecting pipe are provided with a mating portion and a limiting sleeve, wherein the connecting portion is wrapped around the outside of the mating portion, the limiting sleeve is wrapped around the outside of the connecting portion, and a nut is threadedly connected to one side of the outside of the limiting sleeve.

[0007] In a preferred embodiment, the inner wall of the connecting part is provided with a plurality of limiting grooves, and the outer surface of the docking part is provided with a plurality of docking protrusions that are adapted to the limiting grooves.

[0008] In a preferred embodiment, each of the mating protrusions has a cavity inside.

[0009] In a preferred embodiment, the limiting sleeve has a plurality of annularly distributed threaded portions on one end facing the No. 1 connecting pipe, and a partition cavity is provided between every two threaded portions.

[0010] In a preferred embodiment, the interior of the nut is threadedly connected to the exterior of the threaded portion.

[0011] In a preferred embodiment, each of the flat surfaces of the nut is rotatably connected to a folding plate, and the folding plate has a groove inside.

[0012] In a preferred embodiment, both sides of the folding plate are provided with protrusions, and both sides of the inner cavity of the nut are provided with grooves that match the protrusions.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This pipe connection fitting assembly, with its nut, folding plate, and threaded portion, allows users to connect or disconnect pipes simply by turning the nut during installation or disassembly. This avoids the problem of having to turn the entire pipe, which is cumbersome in existing technologies, and thus improves the convenience of connection.

[0015] This pipe connection fitting assembly, through the combination of a connecting part, a mating part, and a limiting sleeve, as well as the cooperation of the limiting groove and the mating protrusion, can ensure that the No. 1 connecting pipe and the No. 2 connecting pipe can fit tightly during connection and is not easy to loosen. At the same time, it can improve the sealing performance without the need for a sealing gasket. This not only simplifies the installation process and reduces costs, but also improves the reliability and durability of the entire pipeline system. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fit of the structure of this utility model;

[0018] Figure 3 This is a side sectional view of the structure of this utility model;

[0019] Figure 4 This is a front view of the nut.

[0020] In the diagram: 1. Connecting pipe No. 1; 101. Connecting part; 102. Limiting groove; 2. Connecting pipe No. 2; 201. Butt joint; 202. Butt joint protrusion; 203. Cavity; 204. Limiting sleeve; 205. Threaded part; 206. Partition cavity; 3. Nut; 301. Folding plate; 302. Hook groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] Please see Figure 1-4This utility model provides a pipe connection fitting assembly, including a first connecting pipe 1 and a second connecting pipe 2. A connecting portion 101 is provided on the outside of the connection end between the first connecting pipe 1 and the second connecting pipe 2. A mating portion 201 and a limiting sleeve 204 are provided on the outside of the connection end between the second connecting pipe 2 and the first connecting pipe 1. The connecting portion 101 wraps around the mating portion 201, and the limiting sleeve 204 wraps around the connecting portion 101. A nut 3 is threaded onto one side of the outer side of the limiting sleeve 204. An opening is provided on the inner wall of the connecting portion 101. The connection part 201 is provided with multiple limiting grooves 102, and multiple mating protrusions 202 adapted to the limiting grooves 102 are formed on the outer surface of the mating part 201. Each mating protrusion 202 has a cavity 203 inside. The connection part 101 of the first connecting pipe 1 is designed with multiple limiting grooves 102 on its inner wall. These limiting grooves 102 are evenly distributed along the circumference of the connection part 101. On the outer surface of the mating part 201 of the second connecting pipe 2, multiple mating protrusions 202 adapted to the shape and position of the limiting grooves 102 are correspondingly designed. When the first connecting pipe 1 and the second connecting pipe 2 are mated, the mating protrusions 202 will accurately engage in the limiting grooves 102 to form a preliminary lock. The limiting sleeve 204 is wrapped around the outside of the connection part 101, which plays a role in further fixing and sealing. The design of the limiting sleeve 204 ensures tight contact between the connecting part 101 and the mating part 201, reducing the possibility of leakage. The nut 3 is threaded onto one side of the limiting sleeve 204. By rotating the nut 3, it can be gradually tightened along the threads of the limiting sleeve 204, thereby applying additional pressure to ensure a more robust connection between the limiting groove 102 of the connecting part 101 and the mating protrusion 202 of the mating part 201. Each mating protrusion 202 has a cavity 203 inside, and the design of these cavities 203 gives the mating protrusion 202 a certain degree of elasticity. When the mating protrusion 202 is engaged with the limiting groove 102, the cavity 203 allows the protrusion to undergo slight deformation to better adapt to the shape and size of the limiting groove 102, thereby enhancing the tightness and stability of the connection. Through the cooperation between the connecting part 101 and the mating part 201, and the fixing effect of the limiting sleeve 204 and the nut 3, this union assembly can achieve a robust connection between the first connecting pipe 1 and the second connecting pipe 2. This design not only prevents relative movement of the pipes at the connection point but also ensures the long-term stability of the connection. The design of the limiting sleeve 204 and the tight fit between the mating protrusion 202 and the limiting groove 102 effectively reduce the possibility of leakage. Furthermore, the cavity 203 inside the mating protrusion 202 allows the protrusion to better adapt to the shape of the limiting groove 102, further enhancing the sealing performance of the connection. This design achieves a good sealing effect without the need for an additional sealing gasket. The design of this union assembly simplifies the installation process, requiring no complicated operations or additional tools. The user simply mates the first connecting pipe 1 with the second connecting pipe 2 and then rotates the nut 3 to achieve fixation and sealing.This design reduces installation costs and improves work efficiency. Due to the tight fit between the connecting part 101 and the mating part 201, as well as the fixing effect of the limiting sleeve 204 and the nut 3, this union assembly has high durability. It can withstand large pressures and tensions and is suitable for various harsh working environments.

[0024] The limiting sleeve 204 has multiple threaded portions 205 arranged in a ring on the end facing the first connecting pipe 1, and a cavity 206 is provided between every two threaded portions 205. The inside of the nut 3 is threadedly connected to the outside of the threaded portions 205. A folding plate 301 is rotatably connected to the flat surface of the nut 3. The inside of the folding plate 301 has a groove 302, and both sides of the folding plate 301 have protrusions. The inside of the nut 3 has grooves on both sides that match the protrusions. The limiting sleeve 204 has multiple threaded portions 205 arranged in a ring on the end facing the first connecting pipe 1. The design of these threaded portions 205 allows the nut 3 to be threadedly connected along the outside of the limiting sleeve 204, thereby achieving a fastening effect. A cavity 206 is provided between every two threaded portions 205. The design of these cavities 206 not only reduces the overall weight of the limiting sleeve 204 but also improves its structural flexibility, helping to better accommodate the rotation of the nut 3 when tightening it. The interior of the nut 3 is connected to the external thread of the threaded portion 205. By rotating the nut 3, it can be gradually tightened along the threaded portion 205, thereby applying pressure to the connecting portion 101 and the mating portion 201 to ensure a tight fit between them. Folding plates 301 are rotatably connected to the flat surface of the nut 3. These folding plates 301 can rotate around their connection points for easy operation by the user. The interior of the folding plates 301 has grooves 302. The design of these grooves 302 makes it easy to flip the folding plates 301 out. Both sides of the folding plates 301 have protrusions, while the inner sides of the nut 3 have grooves that match these protrusions. This design ensures that the folding plate 301 will not detach from the nut 3 during rotation, and also allows the folding plate 301 to be folded when not in use to maintain the compactness of the component. Through the threaded connection between the threaded portion 205 and the nut 3, the user can easily rotate the nut 3 to apply the required tightening force. This design not only simplifies the tightening process but also improves work efficiency, eliminating the need to rotate the entire pipe. The design of the cavity 206 allows the limiting sleeve 204 to better distribute stress under pressure, thereby improving its structural flexibility and durability. The design of the folding plate 301 makes it easier for the user to rotate the nut 3 with tools, especially in situations where space is limited or direct access to the nut 3 is difficult. Furthermore, the folding plate 301 can be folded when not in use to maintain the neatness and compactness of the component.

[0025] The working principle and usage process of this utility model are as follows: First, confirm whether the specifications and dimensions of the first connecting pipe 1 and the second connecting pipe 2 match. Connect the connecting part 101 of the first connecting pipe 1 with the mating part 201 of the second connecting pipe 2. Ensure that the mating protrusion 202 accurately engages in the limiting groove 102, forming a preliminary lock. During the connection process, the position of the pipes can be gently rotated or adjusted to ensure complete fit between the mating protrusion 202 and the limiting groove 102. Wrap the limiting sleeve 204 around the outside of the connecting part 101, ensuring it fits tightly between the connecting part 101 and the mating part 201. Check that the limiting sleeve 204 completely covers the connecting part 101 and there is no gap between it and the mating part 201. Place the nut 3 on the threaded part 205 outside the limiting sleeve 204, and... Ensure it is in tight contact with the threaded portion 205. The design of the folding plate 301 allows for easy operation even in confined spaces. Continue rotating the nut 3 until it gradually tightens along the threaded portion 205, applying sufficient pressure to the connecting portion 101 and the mating portion 201. After the nut 3 is fully tightened, check that the connection between the first connecting pipe 1 and the second connecting pipe 2 is secure. Gently shake the pipes to ensure there is no relative movement or looseness between them. If the folding plate 301 needs to be folded when not in use, gently fold it back and secure it in the groove of the nut 3.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe connection fitting assembly, comprising a first connecting pipe (1) and a second connecting pipe (2), characterized in that: The first connecting pipe (1) and the second connecting pipe (2) are connected by a connecting part (101) on the outside. The second connecting pipe (2) and the first connecting pipe (1) are connected by a docking part (201) and a limiting sleeve (204). The connecting part (101) is wrapped around the docking part (201), and the limiting sleeve (204) is wrapped around the connecting part (101). A nut (3) is threaded on one side of the limiting sleeve (204).

2. The pipe connection fitting assembly according to claim 1, characterized in that: The inner wall of the connecting part (101) is provided with a plurality of limiting grooves (102), and the outer surface of the docking part (201) is provided with a plurality of docking protrusions (202) that are adapted to the limiting grooves (102).

3. A pipe connection fitting assembly according to claim 2, characterized in that: Each of the said docking protrusions (202) has a cavity (203) inside.

4. A pipe connection fitting assembly according to claim 1, characterized in that: The limiting sleeve (204) has a plurality of annularly distributed threaded portions (205) on one end facing the No. 1 connecting pipe (1), and a cavity (206) is provided between every two threaded portions (205).

5. A pipe connection fitting assembly according to claim 4, characterized in that: The inside of the nut (3) is connected to the outside of the threaded part (205).

6. A pipe connection fitting assembly according to claim 1, characterized in that: Each nut (3) is rotatably connected to a folding plate (301) on its flat surface, and the folding plate (301) has a groove (302) inside.

7. A pipe connection fitting assembly according to claim 6, characterized in that: Both sides of the folding plate (301) are provided with protrusions, and the inner cavities of the nut (3) are provided with grooves that match the protrusions on both sides.

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