Anti-seepage adjustable pipeline connecting joint

Abstract

The utility model relates to the technical field of pipeline connecting joints, in particular to an anti-leakage adjustable pipeline connecting joint which comprises a first connecting pipe and a second connecting pipe, and a corrugated pipe is arranged between the first connecting pipe and the second connecting pipe. The close ends of the first connecting pipe and the second connecting pipe are both connected with the end of a corrugated pipe, an outer pipe sleeve is coaxially arranged between the first connecting pipe and the second connecting pipe, the close ends of the first connecting pipe and the second connecting pipe extend into the outer pipe sleeve, and a third flange is installed at one end of the second connecting pipe. The distance between the first connecting pipe and the second connecting pipe can be adjusted through stretching and retracting of the corrugated pipe, the length of the pipeline connecting joint can be adjusted according to the distance between pipelines, then the inclination angle of the pipe joint can be adjusted according to the connecting inclination angle of the pipelines through cooperation of the universal ball, the first ball sleeve and the second ball sleeve, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection joint technology, specifically a leak-proof adjustable pipe connection joint. Background Technology

[0002] Pipe joints are key components used to connect, turn, or branch pipelines. They achieve sealed connections and media transmission between pipelines through mechanical or welding methods and are commonly used in building water supply and drainage systems, industrial pipeline connections, fire protection pipeline systems, and heating, ventilation, and air conditioning systems.

[0003] Existing pipe connection joints typically use flanges or clamps to fix two pipes to be connected at both ends of the joint. However, since the connection between pipes and pipe joints is generally sealed only by a sealing ring, the sealing ring is prone to wear or aging during use, leading to a decrease in sealing performance and leakage of the medium being transported by the pipeline. This results in poor performance. Furthermore, existing pipe connection joints cannot adjust the length of the joint to the distance between the pipes to be connected, nor can they adjust the inclination angle of the joint according to the required tilt angle of the pipe connection, resulting in poor performance.

[0004] Therefore, a leak-proof adjustable pipe connection joint is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a leak-proof adjustable pipe connection joint that can solve the problem of poor sealing performance in pipe connections.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a leak-proof adjustable pipe connection joint, comprising a first connecting pipe and a second connecting pipe, wherein a corrugated pipe is provided between the first connecting pipe and the second connecting pipe, and the proximal ends of the first connecting pipe and the second connecting pipe are connected to the end of the corrugated pipe.

[0007] An outer sleeve is coaxially provided between the first connecting pipe and the second connecting pipe. The proximal ends of the first connecting pipe and the second connecting pipe both extend into the outer sleeve. A third flange is installed at one end of the second connecting pipe. The third flange is connected to the end of the outer sleeve through a connecting mechanism. The other end of the outer sleeve is fastened to the side of the first connecting pipe through a fixing mechanism. The end of the first connecting pipe away from the outer sleeve is connected to a pipe joint through a rotating mechanism.

[0008] A second flange is provided on one side of the second connecting pipe. The second flange is connected to the pipe, and one side of the second flange abuts against the side of the third flange. A first annular groove is provided on the adjacent surfaces of the second flange and the third flange. An elastic sealing ring is provided between the two first annular grooves. Support rings are installed at both ends of the elastic sealing ring, and each support ring is located in the corresponding first annular groove.

[0009] Preferably, the fixing mechanism includes an opening groove formed at the end of the outer sleeve, and two limiting rings are installed at one end of the outer sleeve near the opening groove, forming a receiving space between the two limiting rings. Two arc-shaped clamping plates are symmetrically arranged in the space, with one end of the two arc-shaped clamping plates rotatably connected, and a connecting piece is installed at the other end of each of the two arc-shaped clamping plates. One of the connecting pieces has an adjusting bolt on its side, with one end of the adjusting bolt slidingly through the connecting piece. The other connecting piece has a threaded through hole on its side, with one end of the adjusting bolt passing through the threaded through hole and threadedly connected to the threaded through hole.

[0010] Preferably, the connecting mechanism includes a first flange fixed to one end of the outer sleeve near the third flange, the first flange having a receiving groove on its side, the third flange being located in the receiving groove, and the third flange being fastened to the first flange and the second flange by bolts.

[0011] Preferably, the rotating mechanism includes a second ball sleeve fixed to one end of the first connecting pipe, and a first ball sleeve is provided at one end of the second ball sleeve. A spherical cavity is formed between the first ball sleeve and the second ball sleeve. A universal ball is provided in the spherical cavity. The universal ball is hollow and one end of the universal ball is connected to the pipe joint. One end of the pipe joint extends to the outside of the first ball sleeve.

[0012] Preferably, a second threaded sleeve is coaxially connected to the outer surface of the first ball sleeve, a first threaded sleeve is coaxially installed on the side of the first connecting tube, one end of the second threaded sleeve is fitted onto the side of the first threaded sleeve, and the second threaded sleeve is threadedly connected to the first threaded sleeve.

[0013] Preferably, a second annular groove is provided at one end of the second ball sleeve, an annular connecting piece is provided inside the second annular groove, an annular sealing gasket is installed on the inner surface of the annular connecting piece, the annular sealing gasket is inclined, and one end of the annular sealing gasket extends to the outside of the second annular groove, and the inner surface of the annular sealing gasket is sealed to the outer surface of the universal ball.

[0014] Preferably, the side of the annular connecting piece is flush with the side of the second annular groove, and when the second threaded sleeve is tightened, one end of the first ball sleeve abuts against the side of the annular connecting piece.

[0015] Preferably, the cross-section of the elastic sealing ring is "V" shaped.

[0016] Compared with the prior art, this utility model provides a leak-proof adjustable pipe connection joint, which has the following advantages:

[0017] 1. The distance between the first and second connecting pipes can be adjusted by the expansion and contraction of the corrugated pipe, so the length of the pipe connection joint can be adjusted according to the distance between the pipes. Furthermore, the tilt angle of the pipe joint can be adjusted by the cooperation of the universal ball, the first ball sleeve, and the second ball sleeve, thereby improving the performance.

[0018] 2. By installing an elastic sealing ring between the second flange and the third flange, the gap between the pipe and the second connecting pipe can be sealed. Then, the gap between the universal ball and the second ball sleeve can be sealed by the annular sealing gasket, which prevents the medium from leaking between the universal ball and the second ball sleeve during transportation and improves the performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0021] Figure 3 This is a side sectional view of the structure of this utility model.

[0022] Figure 4 This is a cross-sectional view of the first ball sleeve, the second ball sleeve, and the universal ball structure of this utility model;

[0023] Figure 5 This is a cross-sectional view of the elastic seal of this utility model;

[0024] Figure 6 This utility model Figure 4 Enlarged view of point A.

[0025] In the diagram: 1. Outer sleeve; 2. Adjusting bolt; 3. Connecting piece; 4. Opening groove; 5. First threaded sleeve; 6. Second threaded sleeve; 7. Pipe fitting; 8. Universal ball; 9. First connecting pipe; 10. Arc-shaped clamp; 11. Limiting ring; 12. First flange; 13. Support ring; 14. First annular groove; 15. Second flange; 16. Threaded through hole; 17. Third flange; 18. Second connecting pipe; 19. Receiving groove; 20. Annular sealing gasket; 21. First ball sleeve; 22. Second annular groove; 23. Second ball sleeve; 24. Bellows; 25. Elastic sealing ring; 26. Annular connecting piece. Detailed Implementation

[0026] 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.

[0027] Example:

[0028] Please see Figure 1 - Figure 6 This embodiment of a leak-proof adjustable pipe connection joint includes a first connecting pipe 9 and a second connecting pipe 18. A corrugated pipe 24 is provided between the first connecting pipe 9 and the second connecting pipe 18. The proximal ends of the first connecting pipe 9 and the second connecting pipe 18 are connected to the end of the corrugated pipe 24. The corrugated pipe 24 is a telescopic corrugated pipe. In actual use, the distance between the first connecting pipe 9 and the second connecting pipe 18 can be adjusted by telescopically extending the corrugated pipe 24.

[0029] like Figure 2 and Figure 3 As shown, an outer sleeve 1 is coaxially arranged between the first connecting pipe 9 and the second connecting pipe 18. The proximal ends of the first connecting pipe 9 and the second connecting pipe 18 both extend into the outer sleeve 1. A third flange 17 is installed at one end of the second connecting pipe 18. The third flange 17 is connected to the end of the outer sleeve 1 through a connecting mechanism. The connecting mechanism includes a first flange 12 fixed at one end of the outer sleeve 1 near the third flange 17. A receiving groove 19 is opened on the side of the first flange 12. The third flange 17 is located in the receiving groove 19, and the third flange 17 and the first flange 12 are fastened together by bolts. In actual use, by moving the third flange 17 into the receiving groove 19 and then fixing the third flange 17 and the first flange 12 together with bolts, one end of the second connecting pipe 18 can be fixed together with the outer sleeve 1, and the fixation is stable.

[0030] like Figure 1 and Figure 3 As shown, a second flange 15 is provided on one side of the second connecting pipe 18. The second flange 15 is connected to the pipe, and one side of the second flange 15 abuts against the side of the third flange 17. The second flange 15 and the third flange 17 are fastened together by bolts. When the second flange 15 and the third flange 17 are connected together by bolts, as shown... Figure 3 As shown, one end of the pipe connected to the second flange 15 will extend into the second connecting pipe 18 to complete the pipe connection.

[0031] like Figure 1 and Figure 3As shown, the second flange 15 and the third flange 17 are both provided with a first annular groove 14 on their adjacent surfaces. An elastic sealing ring 25 is provided between the two first annular grooves 14. Support rings 13 are installed at both ends of the elastic sealing ring 25. Each support ring 13 is located in the corresponding first annular groove 14. In actual use, the elastic sealing ring 25 can seal the gap between the third flange 17 and the second flange 15 to prevent the medium in the pipeline from leaking when it flows into the second connecting pipe 18.

[0032] It should be noted that, as Figure 3 and Figure 5 As shown, the elastic sealing ring 25 has a "V" shaped cross-section. In actual use, when the medium in the pipeline flows into the second connecting pipe 18, some of the medium will push the elastic sealing ring 25. The force on the elastic sealing ring 25 will cause both ends to open to the sides (the direction of movement is as follows). Figure 5 (As shown by the middle arrow), this will make the connection between the support ring 13 and the first annular groove 14 tighter, which will further improve the sealing effect and prevent leakage of the medium during transportation.

[0033] like Figure 1 and Figure 2 As shown, the other end of the outer sleeve 1 is fastened to the side of the first connecting pipe 9 by a fixing mechanism. The fixing mechanism includes an opening groove 4 at the end of the outer sleeve 1, and two limiting rings 11 are installed at the end of the outer sleeve 1 near the opening groove 4. A receiving space is formed between the two limiting rings 11. Two arc-shaped clamping plates 10 are symmetrically arranged in this space. One end of the two arc-shaped clamping plates 10 is rotatably connected. In actual use, after adjusting the distance between the first connecting pipe 9 and the second connecting pipe 18, the opening groove 4 can be closed by the squeezing of the two arc-shaped clamping plates 10. At this time, the side of the outer sleeve 1 can be tightly pressed against the side of the first connecting pipe 9, clamping and fixing the first connecting pipe 9, thus fixing the first connecting pipe 9 and the outer sleeve 1 together.

[0034] like Figure 1 and Figure 6 As shown, each of the two arc-shaped clamping plates 10 has a connecting piece 3 installed at its other end. One of the connecting pieces 3 has an adjusting bolt 2 on its side, with one end of the adjusting bolt 2 sliding through the connecting piece 3. The other connecting piece 3 has a threaded through hole 16 on its side, with one end of the adjusting bolt 2 passing through the threaded through hole 16 and threadedly connected to it. In actual use, by rotating the adjusting bolt 2, the two connecting pieces 3 can be moved relative to each other with the help of the threaded through hole 16, thereby controlling the distance between the two arc-shaped clamping plates 10. This allows for control over whether the outer sleeve 1 and the first connecting pipe 9 are fixed as needed.

[0035] The end of the first connecting pipe 9 furthest from the outer sleeve 1 is connected to the pipe joint 7 via a rotating mechanism. The rotating mechanism includes a second ball sleeve 23 fixed to one end of the first connecting pipe 9. One end of the second ball sleeve 23 is provided with a first ball sleeve 21. A spherical cavity is formed between the first ball sleeve 21 and the second ball sleeve 23. A universal ball 8 is provided inside the spherical cavity. The universal ball 8 is hollow and one end of the universal ball 8 is connected to the pipe joint 7. One end of the pipe joint 7 extends outside the first ball sleeve 21. In actual use, the universal ball 8 will rotate between the first ball sleeve 21 and the second ball sleeve 23. This can adjust the tilt angle of the pipe joint 7, so that the pipe connection angle can be adjusted when connected to the pipe.

[0036] like Figure 3 and Figure 4 As shown, the outer surface of the first ball sleeve 21 is coaxially connected to the second threaded sleeve 6, and the side of the first connecting pipe 9 is coaxially installed with the first threaded sleeve 5. One end of the second threaded sleeve 6 is fitted onto the side of the first threaded sleeve 5, and the second threaded sleeve 6 is threadedly connected to the first threaded sleeve 5. In actual use, by rotating the second threaded sleeve 6, the first ball sleeve 21 and the second ball sleeve 23 can be connected together by the cooperation of the first threaded sleeve 5. This can limit the universal ball 8 and prevent the universal ball 8 from falling off.

[0037] like Figure 3 and Figure 4 As shown, a second annular groove 22 is provided at one end of the second ball sleeve 23. An annular connecting piece 26 is provided inside the second annular groove 22. An annular sealing gasket 20 is installed on the inner surface of the annular connecting piece 26. The annular sealing gasket 20 is inclined and one end of the annular sealing gasket 20 extends to the outside of the second annular groove 22. The inner surface of the annular sealing gasket 20 is sealed to the outer surface of the universal ball 8. In actual use, the annular sealing gasket 20 can seal the gap between the universal ball 8 and the second ball sleeve 23, preventing the leakage of the medium delivered to the universal ball 8 by the first connecting pipe 9 during the rotation of the universal ball 8.

[0038] It should be noted that the annular sealing gasket 20 is inclined. When the medium in the first connecting pipe 9 flows between the universal ball 8 and the second ball sleeve 23, it will exert a thrust on the annular sealing gasket 20, causing the annular sealing gasket 20 to deform under the force (the direction of the force is as follows). Figure 6 (As shown by the middle arrow), at this time, the side of the annular sealing gasket 20 will be tightly pressed against the surface of the universal ball 8, and the medium will not leak.

[0039] like Figure 6As shown, the side of the annular connecting piece 26 is flush with the side of the second annular groove 22. When the second threaded sleeve 6 is tightened, one end of the first ball sleeve 21 abuts against the side of the annular connecting piece 26. Thus, when the first ball sleeve 21 is connected to the second ball sleeve 23, the end of the first ball sleeve 21 abuts against the side of the annular connecting piece 26, sealing the gap between the first ball sleeve 21 and the second ball sleeve 23 and improving the sealing effect.

[0040] The working principle of the above embodiments is as follows:

[0041] In use, the operator places the outer sleeve 1 between the first connecting pipe 9 and the second connecting pipe 18, and moves the third flange 17 at the end of the second connecting pipe 18 into the receiving groove 19. Then, the operator inserts the end of the pipe connected to the second flange 15 into the second connecting pipe 18, so that the side of the second flange 15 abuts against the side of the third flange 17. At the same time, the support rings 13 at both ends of the elastic sealing ring 25 are located in the corresponding first annular grooves 14. Then, the first flange 12, the second flange 15, and the third flange 17 are fixed together with bolts to complete the connection between the pipe and the second connecting pipe 18. Under the action of the elastic sealing ring 25, the gap between the second flange 15 and the third flange 17 can be sealed to prevent leakage.

[0042] Next, pull the first connecting pipe 9, which will cause the corrugated pipe 24 to extend, thereby adjusting the distance between the first connecting pipe 9 and the second connecting pipe 18. After adjustment, the operator rotates the adjusting bolt 2. Under the action of the threaded through hole 16, the adjusting bolt 2 controls the two arc-shaped clamps 10 to tighten. When the arc-shaped clamps 10 tighten, they will squeeze the side wall of the outer sleeve 1, causing the opening groove 4 to close. The side wall of the outer sleeve 1 will tightly clamp and fix the first connecting pipe 9, thus completing the length adjustment of the pipe connection joint.

[0043] Next, the staff places the annular connecting piece 26 into the second annular groove 22, and then places the universal ball 8 into the second ball sleeve 23. The side of the annular sealing gasket 20 contacts the side of the universal ball 8, sealing the gap between the universal ball 8 and the second ball sleeve 23, preventing leakage of the medium during transport. Then, one end of the second threaded sleeve 6 is fitted onto the first threaded sleeve 5 and tightened. During tightening, the second threaded sleeve 6 will drive the first ball sleeve 21 to move towards the second ball sleeve 23, so that the end of the first ball sleeve 21 abuts against the end of the second ball sleeve 23, thus limiting the universal ball 8. Then, the pipe and the pipe fitting 7 are connected together to complete the pipe connection. The tilt angle of the pipe connection can be adjusted according to the rotation of the universal ball 8 between the first ball sleeve 21 and the second ball sleeve 23, improving the performance.

[0044] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0045] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof adjustable pipe connection joint, characterized in that: It includes a first connecting pipe (9) and a second connecting pipe (18), with a corrugated pipe (24) between the first connecting pipe (9) and the second connecting pipe (18), and the near ends of the first connecting pipe (9) and the second connecting pipe (18) are connected to the end of the corrugated pipe (24); An outer sleeve (1) is coaxially provided between the first connecting pipe (9) and the second connecting pipe (18). The near ends of the first connecting pipe (9) and the second connecting pipe (18) extend into the outer sleeve (1). A third flange (17) is installed at one end of the second connecting pipe (18). The third flange (17) is connected to the end of the outer sleeve (1) through a connecting mechanism. The other end of the outer sleeve (1) is fastened to the side of the first connecting pipe (9) through a fixing mechanism. The end of the first connecting pipe (9) away from the outer sleeve (1) is connected to the pipe joint (7) through a rotating mechanism. A second flange (15) is provided on one side of the second connecting pipe (18). The second flange (15) is connected to the pipe, and one side of the second flange (15) abuts against the side of the third flange (17). A first annular groove (14) is provided on the adjacent surfaces of the second flange (15) and the third flange (17). An elastic sealing ring (25) is provided between the two first annular grooves (14). A support ring (13) is installed at both ends of the elastic sealing ring (25). Each support ring (13) is located in the corresponding first annular groove (14).

2. The leak-proof adjustable pipe connection joint according to claim 1, characterized in that: The fixing mechanism includes an opening groove (4) at the end of the outer sleeve (1), and two limiting rings (11) are installed at one end of the outer sleeve (1) near the opening groove (4). A receiving space is formed between the two limiting rings (11). Two arc-shaped clamps (10) are symmetrically arranged in the space. One end of the two arc-shaped clamps (10) is rotatably connected, and the other end of the two arc-shaped clamps (10) is equipped with a connecting piece (3). One of the connecting pieces (3) has an adjusting bolt (2) on its side. One end of the adjusting bolt (2) slides through the connecting piece (3). The other connecting piece (3) has a threaded through hole (16) on its side. One end of the adjusting bolt (2) passes through the threaded through hole (16) and is threadedly connected to the threaded through hole (16).

3. The leak-proof adjustable pipe connection joint according to claim 1, characterized in that: The connecting mechanism includes a first flange (12) fixed to one end of the outer sleeve (1) near the third flange (17). The first flange (12) has a receiving groove (19) on its side. The third flange (17) is located in the receiving groove (19), and the third flange (17) is fastened to the first flange (12) and the second flange (15) by bolts.

4. The leak-proof adjustable pipe connection joint according to claim 1, characterized in that: The rotating mechanism includes a second ball sleeve (23) fixed to one end of the first connecting pipe (9), and a first ball sleeve (21) is provided at one end of the second ball sleeve (23). A spherical cavity is formed between the first ball sleeve (21) and the second ball sleeve (23). A universal ball (8) is provided in the spherical cavity. The universal ball (8) is hollow and one end of the universal ball (8) is connected to the pipe joint (7). One end of the pipe joint (7) extends to the outside of the first ball sleeve (21).

5. The leak-proof adjustable pipe connection joint according to claim 4, characterized in that: The outer surface of the first ball sleeve (21) is coaxially connected to the second threaded sleeve (6), the side of the first connecting pipe (9) is coaxially installed with the first threaded sleeve (5), one end of the second threaded sleeve (6) is sleeved on the side of the first threaded sleeve (5), and the second threaded sleeve (6) is threadedly connected to the first threaded sleeve (5).

6. The leak-proof adjustable pipe connection joint according to claim 5, characterized in that: The second ball sleeve (23) has a second annular groove (22) at one end. The second annular groove (22) has an annular connecting piece (26) inside. An annular sealing gasket (20) is installed on the inner surface of the annular connecting piece (26). The annular sealing gasket (20) is inclined and one end of the annular sealing gasket (20) extends to the outside of the second annular groove (22). The inner surface of the annular sealing gasket (20) is sealed to the outer surface of the universal ball (8).

7. The leak-proof adjustable pipe connection joint according to claim 6, characterized in that: The side of the annular connecting piece (26) is flush with the side of the second annular groove (22). When the second threaded sleeve (6) is tightened, one end of the first ball sleeve (21) abuts against the side of the annular connecting piece (26).

8. The leak-proof adjustable pipe connection joint according to claim 1, characterized in that: The cross-section of the elastic sealing ring (25) is "V".

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