Pipeline sealing connection joint

Abstract

The utility model relates to a pipeline sealing connection joint which comprises a rectangular female joint and a rectangular male joint, a sealing installation groove is formed in the inner side wall of the rectangular female joint, a square-shaped sealing ring is arranged in the sealing installation groove, threaded holes are formed in the outer side faces of the periphery of the rectangular male joint, rotating rods are arranged on the outer sides of the periphery of the rectangular female joint, and threaded holes are formed in the threaded holes. One end of the rotating rod movably penetrates through the rectangular female connector and the square sealing ring in sequence and then is fixedly connected with a threaded rod. According to the utility model, the rectangular child joint and the rectangular mother joint are effectively sealed through the square-shaped sealing ring, and the rectangular child joint can be effectively and stably connected inside, so that the rectangular child joint is prevented from being separated from the rectangular mother joint when being stressed, and the stability of the rectangular child joint in use is kept.

Description

Technical Field

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

[0002] Pipe connection joints are devices used to connect pipes, generally including female joints and male joints.

[0003] The Chinese utility model application number CN201822166849.2 discloses a well-sealed pipe threaded connection joint, which includes a male joint, a female joint and a sealing ring. A mounting groove is coaxially provided at one end of the female joint, and an internal thread is provided on the inner side of the mounting groove. The outer diameter of the sealing ring is equal to the diameter of the bottom surface of the mounting groove, and the sealing ring is coaxially accommodated in the bottom of the mounting groove. The male joint includes a threaded end with an external thread coaxially on the outside, and a positioning ring is coaxially provided on the end face of the threaded end.

[0004] The above-mentioned pipe male and female joints are connected together by opposing threaded connections, which is not very stable. When the male or female joint is subjected to force, relative rotation between the male and female joints is likely to occur, causing the male joint to gradually separate from the female joint, making it difficult for the sealing ring to provide a good sealing effect between the male and female joints. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a pipeline sealing connection joint. The specific technical solution is as follows:

[0006] The pipeline sealing connection joint includes a rectangular female joint and a rectangular sub-joint. The inner side wall of the rectangular female joint is provided with a sealing installation groove, and a U-shaped sealing ring is provided in the sealing installation groove. The outer side surfaces of the rectangular sub-joint are all provided with threaded holes. The outer side surfaces of the rectangular female joint are all provided with a rotating rod. One end of the rotating rod is movable through the rectangular female joint and the U-shaped sealing ring in sequence and then fixedly connected to the threaded rod.

[0007] When the rectangular sub-joint is inserted into the interior of the rectangular female joint from the top interface of the rectangular female joint, the inner side of the U-shaped sealing ring conflicts with the outer side of the rectangular sub-joint. By rotating the rotating rod, the threaded rod can be driven to be threadedly connected with the threaded hole to limit the upper and lower positions of the rectangular sub-joint inside the rectangular female joint.

[0008] As an improvement of the above technical solution: side grooves 2 are provided around the inner wall of the U-shaped sealing ring, an annular movable block is provided on the surface of the rotating rod close to the threaded rod, and the annular movable block is slidably connected to the side groove 2, and a side groove 1 is provided on the outside of the threaded hole to match the annular movable block, and an annular limit block is provided on the side of the annular movable block away from the threaded rod, and the annular limit block is fixedly connected to the surface of the rotating rod, and when the threaded rod is threadedly connected to the threaded hole, the annular movable block blocks the side groove 1.

[0009] As an improvement of the above technical solution: the rotating rod has an annular block at one end located on the outside of the rectangular female connector, and annular grooves matching the annular block are opened on the outside of the rectangular female connector. When the threaded rod is threaded into the threaded hole, one side of the annular block is inserted into the annular groove and sealed.

[0010] As an improvement to the above technical solution: the end of the annular block away from the annular groove is provided with a handle block.

[0011] Beneficial effects of the utility model:

[0012] When the rectangular female joint and the rectangular sub-joint are sealed and connected, first insert the bottom side of the rectangular sub-joint into the interior of the rectangular female joint. When the rectangular sub-joint enters the inserted state, the outer side of the rectangular sub-joint will be tightly attached to the inner side of the U-shaped sealing ring, and the U-shaped sealing ring will effectively seal the rectangular female joint and the rectangular sub-joint. Then, by rotating the rotating rod around the rectangular female joint, the threaded rod connected to the rotating rod is threaded into the threaded hole, so that the upper and lower limits of the rectangular sub-joint can be set inside the rectangular female joint, and when the rectangular sub-joint is inserted into the rectangular female joint, the left and right limits of the rectangular sub-joint can be set around the rectangular female joint through the inner side of the rectangular female joint. While the U-shaped sealing ring is effectively sealed between the rectangular sub-joint and the rectangular female joint, the rectangular sub-joint can also be effectively and stably connected to the inside, avoiding the rectangular sub-joint from being separated from the rectangular female joint when subjected to force, thereby maintaining the stability of this application when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the connection between the rectangular female connector and the rectangular male connector in the present invention;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the rectangular female connector and the rectangular sub-connector in the present invention;

[0015] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 4This is a schematic diagram of the connection structure between the rectangular sub-joint and the U-shaped sealing ring in the present invention;

[0017] Figure 5 It is a structural schematic diagram of the rectangular sub-connector in the present invention.

[0018] Figure numerals: 1, rectangular female connector; 10, sealing installation groove; 11, annular groove; 2, rectangular sub-connector; 20, side groove one; 21, threaded hole; 3, U-shaped sealing ring; 30, side groove two; 4, rotating rod; 41, annular limit block; 5, handle block; 51, annular blocking block; 6, annular movable block; 7, threaded rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Example

[0021] Please refer to Figure 1-Figure 5 , the pipeline sealing connection joint includes a rectangular female joint 1 and a rectangular sub-joint 2, the inner side wall of the rectangular female joint 1 is provided with a sealing installation groove 10, and the sealing installation groove 10 is provided with a U-shaped sealing ring 3, and the outer side surfaces of the rectangular sub-joint 2 are all provided with threaded holes 21, and the outer side surfaces of the rectangular female joint 1 are all provided with a rotating rod 4, one end of the rotating rod 4 is movable through the rectangular female joint 1 and the U-shaped sealing ring 3 in turn and is fixedly connected to the threaded rod 7; specifically, when the rectangular sub-joint 2 is inserted into the interior of the rectangular female joint 1, part of the outer side wall of the rectangular sub-joint 2 contacts part of the inner side wall of the rectangular female joint 1, so that when the rectangular sub-joint 2 is inserted into the inner side of the rectangular female joint 1, the rectangular sub-joint 2 can limit the left and right positions of the rectangular female joint 1.

[0022] When the rectangular sub-joint 2 is inserted into the interior of the rectangular female joint 1 from the top interface of the rectangular female joint 1, the inner side of the U-shaped sealing ring 3 conflicts with the outer side of the rectangular sub-joint 2. By rotating the rotating rod 4, the threaded rod 7 can be driven to be threadedly connected with the threaded hole 21 to limit the upper and lower positions of the rectangular sub-joint 2 inside the rectangular female joint 1.

[0023] In an optional embodiment: side grooves 2 30 are provided around the inner wall of the U-shaped sealing ring 3, and an annular movable block 6 is sleeved on the surface of the side of the rotating rod 4 close to the threaded rod 7, and the annular movable block 6 is slidably connected to the side groove 2 30, and a side groove 1 20 adapted to the annular movable block 6 is provided on the outer side of the threaded hole 21, and an annular limit block 41 is provided on the side of the annular movable block 6 away from the threaded rod 7. The annular limit block 41 is fixedly connected to the surface of the rotating rod 4. When the threaded rod 7 is threadedly connected to the threaded hole 21, the annular movable block 6 blocks the side groove 1 20. Specifically, when the rotating rod 4 drives the threaded rod 7 to rotate, the annular limit block 41 on the rotating rod 4 will push the annular movable block 6 toward the side groove 1 20, so that the annular movable block 6 blocks the side groove 1 20, thereby sealing the side gap of the rotating rod 4 on the side of the U-shaped sealing ring 3.

[0024] In an optional embodiment: the rotating rod 4 has an annular block 51 at one end located outside the rectangular female connector 1, and annular grooves 11 that are compatible with the annular block 51 are opened on all four sides of the rectangular female connector 1. When the threaded rod 7 is threaded into the threaded hole 21, one side of the annular block 51 is inserted into the annular groove 11 and sealed, so that the gap on the outside of the rotating rod 4 can be effectively blocked by the annular block 51, further improving the sealing performance.

[0025] In an optional embodiment, the end of the annular block 51 away from the annular groove 11 is provided with a handle 5 , and the handle 5 facilitates the overall rotation of the rotating rod 4 .

[0026] The nut 21 is provided with a screw thread, and the nut 22 is provided with a screw thread, and the nut 23 ...

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipe sealing connection joint, comprising a rectangular female joint (1) and a rectangular male joint (2), wherein the inner side wall of the rectangular female joint (1) is provided with a sealing installation groove (10), and a square-shaped sealing ring (3) is provided in the sealing installation groove (10), characterized in that: The outer side surfaces of the rectangular sub-joint (2) are all provided with threaded holes (21), and the outer side surfaces of the rectangular female joint (1) are all provided with rotating rods (4). One end of the rotating rod (4) is movably passed through the rectangular female joint (1) and the square-shaped sealing ring (3) in sequence and then fixedly connected to the threaded rod (7); When the rectangular sub-joint (2) is inserted into the interior of the rectangular female joint (1) from the top interface of the rectangular female joint (1), the inner side of the square-shaped sealing ring (3) contacts the outer side of the rectangular sub-joint (2), and the threaded rod (7) is driven to be threadedly connected with the threaded hole (21) by rotating the rotating rod (4), thereby limiting the upper and lower positions of the rectangular sub-joint (2) inside the rectangular female joint (1).

2. The pipeline sealing connection joint according to claim 1, characterized in that: Side grooves 2 (30) are provided around the inner wall of the mouth-shaped sealing ring (3); an annular movable block (6) is sleeved on the surface of the side of the rotating rod (4) close to the threaded rod (7), and the annular movable block (6) is slidably connected to the side groove 2 (30); a side groove 1 (20) adapted to the annular movable block (6) is provided on the outside of the threaded hole (21); an annular limiting block (41) is provided on the side of the annular movable block (6) away from the threaded rod (7); the annular limiting block (41) is fixedly connected to the surface of the rotating rod (4); when the threaded rod (7) is threadedly connected to the threaded hole (21), the annular movable block (6) blocks the side groove 1 (20).

3. The pipeline sealing connection joint according to claim 2, characterized in that: The rotating rod (4) has an annular block (51) at one end located outside the rectangular female connector (1). An annular groove (11) adapted to the annular block (51) is provided on all four sides of the outer side of the rectangular female connector (1). When the threaded rod (7) is threadedly connected to the threaded hole (21), one side of the annular block (51) is inserted into the annular groove (11) and sealed.

4. The pipeline sealing connection joint according to claim 3, characterized in that: The annular blocking block (51) has a handle block (5) at one end away from the annular groove (11).

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