Double-movement nut joint

Abstract

The utility model provides a double-moving nut joint, which relates to the field of pipeline joints, and comprises two water pipes and a joint piece arranged between the two water pipes, the joint piece comprises a left joint, a right joint and a connecting pipe, and two ports of the inner side walls of the two water pipes are respectively provided with an internal thread part; the outer surface of the left connector and the outer surface of the right connector are provided with external thread parts in threaded connection with the internal thread parts, the opposite ends of the left connector and the right connector are fixedly connected with socketed pipes, the two ends of the connecting pipe are inserted into the two socketed pipes respectively, and fixing pieces are installed between the connecting pipe and the socketed pipes. By arranging the left connector, the right connector and the connecting pipe inserted between the left connector and the right connector, the pipe fitting can completely enter the water pipes, and the effect that the pipe fitting is easy to install under the condition that ports of the two water pipes are close and cannot move is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline joints, in particular to a double movable nut joint. Background Art

[0002] Nut joints refer to pipe connectors with threads and are the most common pipe fittings in industry and life.

[0003] A reinforced sealed double-clip double-external thread joint in the prior art, with announcement number: CN215981262U, comprises a main joint, the outside of the main joint is movably connected with a movable nut, the outside of the main joint is provided with a stabilizing spring, the outside of the movable nut is provided with an external rubber ring, the left side of the main joint is provided with a left joint, the right side of the main joint is provided with a right joint, a left external thread joint is provided between the left joint and the main joint, a right external thread joint is provided between the right joint and the main joint, and the positions of the left external thread joint and the right external thread joint correspond to the positions of the external rubber ring. When the pipeline is connected to the joint, the pipeline is first inserted into the ends of the left joint and the right joint.

[0004] Because the main joint, left outer thread joint, left joint, right joint and right outer thread joint are rigidly connected, that is, the spliced ​​length is fixed, and because the joint is threadedly connected to the outside of the pipe during installation, the pipe is not easy to install when the water pipe has been fixed and if the gap between the two water pipes is lower than the spliced ​​length. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a double movable nut joint.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double movable nut joint, including two water pipes and a joint piece installed between the two water pipes, the joint piece including a left joint, a right joint and a connecting pipe, two ports on the inner side walls of the two water pipes are provided with internal threaded portions, the outer surfaces of the left joint and the right joint are provided with external threaded portions threadedly connected to the internal threaded portions, the opposite ends of the left joint and the right joint are fixedly connected with sleeve tubes, the two ends of the connecting pipe are respectively inserted into the two sleeve tubes, and a fixing piece is installed between the connecting pipe and the sleeve tube.

[0007] Preferably, the fixing member includes a nut, the outer surface of the sleeve is also provided with an external threaded portion, and the external threaded portion is threadedly connected to the nut, and a limit block is movably connected inside the nut and is arranged parallel to the sleeve, and one end of the limit block extends into the sleeve and is located between the sleeve and the connecting pipe.

[0008] Preferably, the outer wall of the nut is clearance-matched with the inner wall of the water pipe.

[0009] Preferably, two clamping rings are sleeved on the outer surface of the connecting pipe, the clamping ring is equally divided into two parts, and the end of each part is fixedly connected with a protrusion, and a bolt is threadedly connected between two adjacent protrusions.

[0010] Preferably, an annular groove is formed on the outer surface of the left joint and the right joint, and a sealing ring is provided outside the annular groove.

[0011] Preferably, the annular grooves on the left joint and the right joint are both arranged close to one of the water pipes.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by providing a left joint and a right joint and a connecting pipe inserted between the left joint and the right joint, the outer walls of the left joint and the right joint are threadedly connected with the inner wall of the water pipe, so that the pipe fitting can be fully inserted into the water pipe. Therefore, after the installation of the two water pipe positions is completed, by pulling out the joint located in one of the pipes, it can be threadedly connected with the inner wall of the other water pipe in the case of a small gap.

[0014] 2. In the present invention, the connecting pipe and the sleeve are fixed by setting a nut to squeeze the limiting ring. When the nut is rotated in the opposite direction, the connecting pipe can be removed from the sleeve, so that the device is more convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a double movable nut joint proposed in the utility model;

[0016] Figure 2 This is a schematic diagram of the internal thread structure of the double movable nut joint proposed in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the left joint and the right joint of the double movable nut joint proposed by the utility model;

[0018] Figure 4 for Figure 3 sectional view of .

[0019] Legend: 1. Left joint; 2. Right joint; 3. Nut; 4. Clamp ring; 5. Sealing ring; 6. Connecting pipe; 7. Limiting ring; 8. Bolt; 9. Socket; 10. Internal threaded part; 11. External threaded part; 12. Water pipe; 13. Bump; 14. Annular groove. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-4 As shown, a double movable nut joint comprises two water pipes 12 and a joint member installed between the two water pipes 12, the joint member comprises a left joint 1, a right joint 2 and a connecting pipe 6, internal threaded portions 10 are provided at two ports of the inner side walls of the two water pipes 12, external threaded portions 11 threadedly connected to the internal threaded portions 10 are provided on the outer surfaces of the left joint 1 and the right joint 2, the opposite ends of the left joint 1 and the right joint 2 are fixedly connected with sleeve tubes 9, the two ends of the connecting pipe 6 are respectively inserted into the two sleeve tubes 9, and a fixing member is installed between the connecting pipe 6 and the sleeve tube 9.

[0023] According to this technical solution, by providing a left joint 1 and a right joint 2 threadedly connected to the water pipe 12 and a connecting pipe 6 inserted between the left joint 1 and the right joint 2, when the two water pipes 12 are installed and the distance between their ports is close, during the process of installing the pipe fittings, the left joint 1 or the right joint 2 can be rotated into the interior of one of the first fixed water pipes 12, and the connecting pipe 6 can be inserted into the sleeve pipe 9 and fixed by the fixing member, and then the other water pipe 12 can be installed. After the two water pipes 12 are installed, the left joint 1 or the right joint 2 can be rotated to make the end of the connecting pipe 6 and the other water pipe 12 be connected. A suitable distance is left between the water pipes 12, and the water pipes 12 are inserted into the sleeve tube 9 on the other left joint 1 or the right joint 2. After being fixed by the fixing member, the pipe fitting is rotated and the pipe fitting moves horizontally, so that the external threaded portion 11 on the left joint 1 and the right joint 2 are respectively threadedly connected to the internal threaded portion 10 in the two water pipes 12, so that the pipe fitting is fixed to the two water pipes 12. In addition, in actual operation, a connecting pipe 6 of a suitable length can be selected to achieve the purpose of convenient operation, thereby achieving the effect of easy installation of the pipe fitting when the ports of the two water pipes 12 are close and cannot be moved.

[0024] like Figure 1 and Figure 2 As shown, the fixing part includes a nut 3, an outer surface of the sleeve 9 is also provided with an external threaded portion 11, and the external threaded portion 11 is threadedly connected to the nut 3, and a limiting ring 7 arranged parallel to the sleeve 9 is movably connected inside the nut 3, one end of the limiting ring 7 extends into the sleeve 9 and is located between the sleeve 9 and the connecting pipe 6, and the outer wall of the nut 3 is gap-matched with the inner wall of the water pipe 12.

[0025] By adopting this technical solution, the connecting pipe 6 and the sleeve pipe 9 are fixed by setting a fixing piece, so that when the pipe is rotated, the left joint 1 and the right joint 2 can be rotated at the same time, so that when the left joint 1 and the right joint 2 are rotated, both joints can be threadedly connected with the water pipe 12, and when the nut 3 is rotated in the opposite direction, the connecting pipe 6 and the sleeve pipe 9 can be separated from the fixed state. Specifically, the nut 3 is rotated to make the nut 3 threadedly connected with the external threaded portion 11 on the surface of the sleeve pipe 9. At this time, the nut 3 will drive the limiting ring 7 to move toward the sleeve pipe 9. After driving a certain distance, the end of the limiting ring 7 penetrates into the connecting pipe 6 and the sleeve tube 9 and embedded in the surface of the connecting pipe 6. At this time, the connecting pipe 6 is fixed together with the sleeve tube 9 due to the action of the nut 3 and the limiting ring 7. When the nut 3 is reversed, the nut 3 moves in the opposite direction, thereby canceling the squeezing of the limiting ring 7. Then the connecting pipe 6 is pulled out by external force, and the limiting ring 7 is separated from the state of being embedded in the connecting pipe 6. At this time, the connecting pipe 6 is separated from the sleeve tube 9, thereby achieving the effect of fixing and detaching the connecting pipe 6 and the left joint 1 and the right joint 2. In addition, the clearance between the outer wall of the nut 3 and the inner wall of the water pipe 12 enables the nut 3 and the connecting pipe 6 to enter the water pipe 12, which is convenient for personnel to install.

[0026] like Figure 1 and Figure 2 As shown, two clamp rings 4 are sleeved on the outer surface of the connecting pipe 6 . The clamp ring 4 is divided into two equal parts, and a protrusion 13 is fixedly connected to the end of each part. A bolt 8 is threadedly connected between two adjacent protrusions 13 .

[0027] With this technical solution, the clamp ring 4 is used to abut against the end face of the limiting nut 3 so that the limiting nut 3 is not easy to slip off when it is threadedly connected to the sleeve 9.

[0028] like Figure 2 and Figure 3 As shown, an annular groove 14 is formed on the outer surface of the left joint 1 and the right joint 2 , and a sealing ring 5 is arranged outside the annular groove 14 . The annular groove 14 on the left joint 1 and the right joint 2 is arranged close to one of the water pipes 12 .

[0029] By adopting this technical solution, when the pipe fitting is rotated, the sealing rings 5 ​​on the left joint 1 and the right joint 2 can enter the water pipe 12 and strengthen the sealing between the left joint 1 and the right joint 2 and the water pipe 12.

[0030] Working principle: When in use, rotate the left joint 1 or the right joint 2 into one of the water pipes 12, then use the fixing parts to fix the sleeve tube 9 and the connecting pipe 6 inserted in the sleeve tube 9. At this time, continue to rotate the left joint 1 or the right joint 2, and insert the other end of the connecting pipe 6 into the sleeve tube 9 on the other left joint 1 or the right joint 2. After fixing it with the fixing parts, install and fix the other water pipe 12, rotate the pipe fitting, and the pipe fitting moves horizontally under the action of the internal threaded part 10 and the external threaded part 11, so that the external threaded part 11 on the left joint 1 and the right joint 2 are respectively threadedly connected with the internal threaded parts 10 in the two water pipes 12, so that the pipe fitting is fixed to the two water pipes 12.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A double movable nut joint, comprising two water pipes (12) and a joint member installed between the two water pipes (12), the joint member comprising a left joint (1), a right joint (2) and a connecting pipe (6), characterized in that: Internal threaded portions (10) are provided at two ports of the inner side walls of the two water pipes (12); external threaded portions (11) threadedly connected to the internal threaded portions (10) are provided on the outer surfaces of the left joint (1) and the right joint (2); sleeve tubes (9) are fixedly connected to the opposite ends of the left joint (1) and the right joint (2); both ends of the connecting pipe (6) are respectively inserted into the two sleeve tubes (9), and a fixing piece is installed between the connecting pipe (6) and the sleeve tube (9).

2. The double movable nut joint according to claim 1, characterized in that: The fixing member comprises a nut (3); an external threaded portion (11) is also formed on the outer surface of the sleeve tube (9); the external threaded portion (11) is threadedly connected to the nut (3); a limiting ring (7) arranged parallel to the sleeve tube (9) is movably connected inside the nut (3); one end of the limiting ring (7) extends into the sleeve tube (9) and is located between the sleeve tube (9) and the connecting pipe (6).

3. The double movable nut joint according to claim 2, characterized in that: The outer wall of the nut (3) is clearance-matched with the inner wall of the water pipe (12).

4. The double movable nut joint according to claim 1, characterized in that: The outer surface of the connecting pipe (6) is also sleeved with two clamping rings (4), the clamping ring (4) being equally divided into two parts, and the end of each part is fixedly connected with a protrusion (13), and a bolt (8) is threadedly connected between two adjacent protrusions (13).

5. The double movable nut joint according to claim 1, characterized in that: An annular groove (14) is provided on the outer surfaces of the left joint (1) and the right joint (2), and a sealing ring (5) is provided outside the annular groove (14).

6. The double movable nut joint according to claim 1, characterized in that: The annular grooves (14) on the left joint (1) and the right joint (2) are both arranged close to one of the water pipes (12).

Images