Seepage-proof connecting structure for sewage pipeline

Abstract

The utility model discloses an anti-leakage connecting structure for a sewage pipeline. The connecting pipe comprises a connecting pipe and two clamping pieces, the two clamping pieces are installed at the front end and the rear end of the connecting pipe respectively, a first through hole is formed in the middle of each clamping piece and communicated with the connecting pipe, an annular clamping groove is formed in the end, away from the connecting pipe, of each clamping piece, and the annular clamping grooves are formed in the edges of the outer sides of the first through holes. An annular clamping plate is arranged at an opening of the annular clamping groove, the outer side edge of the annular clamping plate is connected with the outer side edge of the annular clamping groove, a plurality of extrusion pieces are evenly installed on the outer side face of the clamping piece, an extrusion plate is installed at the bottom ends of the extrusion pieces, and the extrusion plate is arranged between the annular clamping plate and the annular clamping groove. The cross section of the extrusion plate is in a circular arc shape, and the axis of the extrusion plate is the same as the axis of the connecting pipe. The clamping piece has the advantages that the clamping piece is not prone to falling off and leaking water when impacted by sewage, and the impact of the sewage on the clamping piece is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to pipeline connection, in particular to a leakage-proof connection structure for sewage pipelines. Background Art

[0002] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads, commonly known as sewer pipes, and are usually called municipal drainage pipes in engineering. The existing anti-leakage connection structures of municipal sewage pipes on the market have some defects during use. For example, the anti-leakage structure of the pipe usually reduces the risk of leakage by adding protective components to the outer wall of the pipe, and does not solve the problem from the connection method of the pipe. As a result, the leakage of sewage pipes is not easy to be discovered in the early stage of leakage, and the treatment after discovery often requires greater maintenance investment.

[0003] The Chinese patent authorization announcement number is CN216813302U, and the authorization announcement date is June 24, 2022. It discloses an anti-leakage connection structure for urban rainwater and sewage pipes, including a connector with openings at both ends and a channel formed inside. A first groove for clamping a concrete pipe is provided on the inner walls at both ends of the connector, and a first gasket is provided in the first groove. The first gasket is a groove-type gasket that matches the first groove. The shortcomings of this utility model are that the clamping member is driven by a threaded rod structure to tighten the sewage pipe, and there is a lack of a positioning guide structure on the clamping member. During the clamping process, the clamping member has a problem of misalignment and offset, which affects the structure of clamping the sewage pipe. At the same time, the upper limit of the bearing capacity of the sewage pipe structure clamped by a single clamping member is insufficient, and it is easy to damage the pipe when impacted by a large amount of sewage, causing leakage, affecting its life and sound insulation effect. Utility Model Content

[0004] The utility model aims to overcome the shortcoming in the prior art that the structure is easy to fall off and leak when impacted by sewage, and provides a sewage pipe anti-leakage connection structure which is not easy to fall off and leak when impacted by sewage.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connection structure for preventing leakage of sewage pipes, comprising a connecting pipe and two clamps, wherein clamps are installed at both the front and rear ends of the connecting pipe, a through hole is provided in the middle of the clamp, and the through hole is communicated with the connecting pipe, an annular groove is provided at one end of the clamp away from the connecting pipe, the annular groove is placed at the outer edge of the through hole, an annular clamping plate is provided at the opening of the annular groove, the outer edge of the annular clamping plate is connected to the outer edge of the annular groove, a plurality of extrusion members are evenly installed on the outer surface of the clamp, an extrusion plate is installed at the bottom end of the extrusion member, the extrusion plate is placed between the annular clamping plate and the annular groove, the cross section of the extrusion plate is arc-shaped, and the axis of the extrusion plate is the same as the axis of the connecting pipe.

[0007] The front and rear ends of the connecting pipe are both equipped with clamps, a through hole 1 in the middle of the connecting pipe is connected to the connecting pipe, an annular groove is provided at the end of the clamp away from the connecting pipe, and the annular groove is placed at the outer edge of the through hole 1. Sewage impact will first impact the clamp, and since the sewage pipe is inserted in the annular groove, the sewage cannot flow out through the connection. The extrusion plate on the bottom end of the extrusion piece clamps the sewage pipe, making it difficult for the sewage pipe to fall off and separate. The cooperation of the annular clamp plate and the annular groove prevents the extrusion plate from derailing during the up and down movement, avoiding water leakage caused by weakened clamping due to derailment of the push plate, and achieving the purpose of not falling off and leaking when impacted by sewage.

[0008] Preferably, the extrusion member includes a bolt and a round rod, a plurality of screw holes are provided on the outer surface of the clamp, the bolt is threadedly connected to the clamp through the screw hole, one end of the bolt is passed through the screw hole and placed in the annular groove, one end of the round rod is connected to the end of the bolt placed in the annular groove, a circular hole groove is provided on the top surface of the extrusion plate, an annular flange is provided on the other end of the round rod, an annular groove is provided in the circular hole groove, and the round rod is rotatably connected to the extrusion plate through the cooperation of the annular flange and the annular groove. The bolt is threadedly connected to the clamp through the screw hole, one end of the round rod is connected to the end of the bolt placed in the annular groove, the bolt is rotated along the thread to drive the round rod to move up and down, and the extrusion plate is driven to move through the cooperation of the annular flange and the annular groove, and the sewage pipe is clamped by the extrusion plate, thereby achieving the purpose of facilitating the clamping of the sewage pipe.

[0009] Preferably, a sealing strip 1 is installed at the bottom end of the extrusion plate, and a sealing strip 2 is installed on a side surface in the annular groove and corresponding to the extrusion plate. When the extrusion plate presses the sewage pipe inserted into the annular groove, the sealing strips 1 and 2 further fix the sewage pipe to prevent the sewage pipe from detaching, and the sealing strips 1 and 2 can prevent sewage from flowing out of the annular groove.

[0010] Preferably, the connecting pipe is in the shape of a bellows, and the bellows design enables the connecting pipe to have a certain bending ability.

[0011] Preferably, a guide platform is installed at the opening of through hole 1 on the clamp, the guide platform is placed at the inner edge of the annular clamping groove, the diameter of the guide platform gradually decreases from the opening of through hole 1 to the opening away from through hole 1, and the diameter of the guide platform is greater than or equal to the diameter of through hole 1. The design of the guide platform can further reduce the impact of sewage on the clamp when the sewage flows through the connection between the clamp and the sewage pipe, and reduce the outflow of sewage from the connection between the clamp and the sewage pipe.

[0012] Preferably, the clamps at both ends of the connecting pipe are provided with clamps, a connecting piece 1 is installed on the outer side of the clamp, a bolt 2 is installed on the outer side of the clamp, a nut 1 is installed on the bolt 2, a screw hole 2 is provided in the middle of the connecting piece 1, the clamp is connected to the connecting piece 1 through the cooperation of the bolt 2, the screw hole 2 and the nut 1, a clamping channel is provided in the middle of the clamp, and the clamping channel corresponds to the through hole 1. The sewage pipe is installed in the clamping channel, the clamp is connected to the connecting piece 1 through the cooperation of the bolt 2, the screw hole 2 and the nut 1, and the clamp is moved closer to the clamp by tightening the nut 1 on the bolt 2, so that the sewage pipe is fixed in the annular groove under the drive of the clamp, thereby achieving the purpose of preventing the sewage pipe from detaching from the annular groove.

[0013] Preferably, the clamp comprises a left clamp and a right clamp, the upper end of the left clamp is provided with a connecting piece 2, the upper end of the right clamp is provided with a connecting piece 3, the middle of the connecting piece 2 is provided with a rotating shaft, the middle of the connecting piece 3 is provided with a through hole 2, the left clamp is rotatably connected to the connecting piece 3 through the connecting piece 2, the through hole 2 and the rotating shaft, the lower end of the left clamp is provided with a clamping slot, the lower end of the right clamp is placed in the clamping slot, the front and rear ends of the clamping slot are provided with a long through hole, the lower end of the right clamp is installed with a bolt 3, the bolt 3 is placed in the long through hole, and the bolt 3 is installed with a nut 2, the lower end of the left clamp is detachably connected to the lower end of the right clamp through the cooperation of the long through hole, the bolt 3 and the nut 2, the clamping channel is the area surrounded by the left clamp and the right clamp, and the bolt 2 is connected to one end of the rotating shaft close to the clamp. The left clamp is rotatably connected to the connecting piece three through the connecting piece two, the through hole two and the rotating shaft. The lower end of the left clamp is detachably connected to the lower end of the right clamp through the cooperation of the long through hole, the bolt three and the nut two. The clamping channel surrounded by the left clamp and the right clamp is reduced by rotating the right clamp along the rotating shaft, thereby clamping the sewage pipe in the clamping channel. After clamping the sewage pipe, the lower end of the right clamp is fixed to the lower end of the left clamp by tightening the nut two, thereby achieving the purpose of facilitating the adjustment and fixation of the sewage pipe.

[0014] Preferably, a connecting piece 4 is installed on the outer side of the left clamp, a bolt 4 is installed on the connecting piece 4, a nut 3 is installed on the bolt 4, a connecting piece 4 is installed on the outer side of the clamp, a screw hole 3 is provided in the middle of the connecting piece 4, and the left clamp is connected to the clamp through the cooperation of the screw hole 3, the bolt 4 and the nut 3. The left clamp is connected to the clamp through the cooperation of the screw hole 3, the bolt 4 and the nut 3, and the clamp is further fastened to the clamp by tightening the nut 3, thereby preventing the sewage pipe from being separated from the annular clamping groove.

[0015] Preferably, a corrosion-resistant layer is installed on the inner side of the connecting pipe, which can effectively prevent the corrosive substances in the sewage from corroding the connecting pipe.

[0016] The beneficial effects of the utility model are as follows: it is not easy to fall off and leak when impacted by sewage; the first and second sealing strips can prevent sewage from flowing out of the annular groove; the bellows design enables the connecting pipe to have a certain turning ability; the impact of sewage on the clamping piece is reduced; the outflow of sewage from the connection between the clamping piece and the sewage pipe is reduced; it is easy to adjust and fix the sewage pipe; the sewage pipe is prevented from detaching from the annular groove; the corrosion-resistant layer can effectively prevent the corrosive substances in the sewage from corroding the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the extrusion part;

[0019] Figure 3 is a longitudinal section of the extrusion;

[0020] Figure 4 It is a structural diagram of the card;

[0021] Figure 5 It is a structural schematic diagram of the junction of the card and the fixture;

[0022] Figure 6 It is a schematic diagram of the structure of the fixture.

[0023] In the figure: 1. connecting pipe, 2. clamping piece, 3. annular clamping groove, 4. annular clamping plate, 5. extrusion piece, 6. extrusion plate, 7. bolt one, 8. round rod, 9. round hole groove, 10. annular flange, 11. annular groove, 12. sealing strip one, 13. sealing strip two, 14. guide table, 15. clamp, 16. connecting piece one, 17. bolt two, 18. nut one, 19. screw hole two, 20. connecting piece two, 21. connecting piece three, 22. rotating shaft, 23. clamping groove, 24. long through hole, 25. bolt three, 26. nut two, 27. connecting piece four, 28. bolt four, 29. nut three, 30. screw hole three, 31. left clamp, 32. right clamp. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1In the described embodiment, a connection structure for preventing leakage of a sewage pipe includes a connecting pipe 1 and two clamps 2, the front and rear ends of the connecting pipe 1 are both equipped with clamps 2, a through hole 1 is provided in the middle of the clamp 2, the through hole 1 is communicated with the connecting pipe 1, an annular groove 3 is provided at the end of the clamp 2 away from the connecting pipe 1, the annular groove 3 is placed at the outer edge of the through hole 1, an annular clamp plate 4 is provided at the opening of the annular groove 3, the outer edge of the annular clamp plate 4 is connected to the outer edge of the annular groove 3, a plurality of extrusion members 5 are evenly installed on the outer surface of the clamp 2, an extrusion plate 6 is installed at the bottom end of the extrusion member 5, the extrusion plate 6 is placed between the annular clamp plate 4 and the annular groove 3, the cross-section of the extrusion plate 6 is arc-shaped, and the axis of the extrusion plate 6 is the same as the axis of the connecting pipe 1.

[0026] like Figure 2 and Figure 3 As shown, the extrusion member 5 includes a bolt 7 and a round rod 8. A plurality of screw holes are provided on the outer surface of the clamp 2. The bolt 7 is threadedly connected to the clamp 2 through the screw hole. One end of the bolt 7 passes through the screw hole and is placed in the annular groove 3. One end of the round rod 8 is connected to the end of the bolt 7 placed in the annular groove 3. A circular hole groove 9 is provided on the top surface of the extrusion plate 6. An annular flange 10 is provided on the other end of the round rod 8. An annular groove 11 is provided in the circular hole groove 9. The round rod 8 is rotatably connected to the extrusion plate 6 through the cooperation of the annular flange 10 and the annular groove 11.

[0027] like Figure 2 and Figure 4 As shown, a sealing strip 12 is installed at the bottom end of the extrusion plate 6, and a sealing strip 2 13 is installed on a side surface in the annular groove 3 corresponding to the extrusion plate 6. The connecting pipe 1 is a corrugated pipe.

[0028] like Figure 4 and Figure 5 As shown, a guide platform 14 is installed at the opening of through hole 1 on the clamp 2, and the guide platform 14 is placed at the inner edge of the annular clamping groove 3. The diameter of the guide platform 14 gradually decreases from the opening of through hole 1 to the opening away from through hole 1, and the diameter of the guide platform is greater than or equal to the diameter of through hole 1.

[0029] like Figure 5 As shown, clamps 15 are provided on the clamps 2 at both ends of the connecting pipe 1, a connecting piece 16 is installed on the outer side of the clamp 2, a bolt 17 is installed on the outer side of the clamp 15, a nut 18 is installed on the bolt 17, a screw hole 19 is provided in the middle of the connecting piece 16, the clamp 15 is connected to the connecting piece 16 through the cooperation of the bolt 17, the screw hole 19 and the nut 18, and a clamping channel is provided in the middle of the clamp 15, which corresponds to the through hole 1.

[0030] like Figure 5 and Figure 6As shown, the clamp 15 includes a left clamp 31 and a right clamp 32. The upper end of the left clamp 31 is provided with a second connector 20, and the upper end of the right clamp 32 is provided with a third connector 21. The middle of the second connector 20 is provided with a rotating shaft 22, and the middle of the third connector 21 is provided with a second through hole. The left clamp 31 is rotatably connected to the third connector 21 through the second connector 20, the second through hole and the rotating shaft 22. The lower end of the left clamp 31 is provided with a slot 23, and the lower end of the right clamp 32 is placed in the slot 23. A long through hole 24 is provided at the front and rear ends of the groove 23, and a bolt three 25 is installed at the lower end of the right clamp 32. The bolt three 25 is placed in the long through hole 24, and a nut two 26 is installed on the bolt three 25. The lower end of the left clamp 31 is detachably connected to the lower end of the right clamp 32 through the cooperation of the long through hole 24, the bolt three 25 and the nut two 26. The clamping channel is the area surrounded by the left clamp 31 and the right clamp 32, and the bolt two 17 is connected to the end of the rotating shaft 22 close to the clamp 2.

[0031] A connecting piece 27 is installed on the outer side of the left clamp 31, a bolt 28 is installed on the connecting piece 27, a nut 29 is installed on the bolt 28, a connecting piece 33 is installed on the outer side of the clamp 2, a screw hole 30 is provided in the middle of the connecting piece 33, and the left clamp 31 is connected to the clamp 2 through the screw hole 30, the bolt 28 and the nut 39. A corrosion-resistant layer is installed on the inner side of the connecting pipe 1.

[0032] When in use, first insert the sewage pipe into the annular groove 3 on the clamp 2, and push the round rod 8 toward the through hole 1 by tightening the bolt 1 7. The round rod 8 pushes the extrusion plate 6 to press the sewage pipe through the cooperation of the annular flange 10 and the annular groove 11. At this time, the sealing strip 12 at the lower end of the extrusion plate 6 and the sealing strip 2 13 on the annular groove 3 will be close to the outer side of the sewage pipe. Since the connecting pipe 1 is a corrugated pipe, the connecting pipe 1 can be appropriately bent or twisted when the sewage pipe is connected, and then the connecting piece 4 27 on the left clamp 31 is passed through the screw hole. The right clamp 32 is rotated along the rotating shaft 22 until the inner side of the right clamp 32 fits with the sewage pipe, and then the nut two 26 on the bolt three 25 in the long through hole 24 is tightened and fixed. The left clamp 31 is connected to the connecting piece one 16 on the clamp through the bolt two 17, the screw hole two 18 and the nut one 19, and the nut one 19 and the nut three 29 are tightened to make the sewage pipe more firmly installed in the annular groove 3 on the clamp 2, and the installation is completed.

Claims

1. A sewage pipe anti-leakage connection structure, characterized in that: The invention comprises a connecting tube (1) and two clamping members (2), wherein the connecting tube (1) is provided with clamping members (2) at both the front and rear ends, a through hole (1) is provided in the middle of the clamping member (2), the through hole (1) is communicated with the connecting tube (1), an annular clamping groove (3) is provided at one end of the clamping member (2) away from the connecting tube (1), the annular clamping groove (3) is arranged at the outer edge of the through hole (1), an annular clamping plate (4) is provided at the opening of the annular clamping groove (3), the outer edge of the annular clamping plate (4) is connected to the outer edge of the annular clamping groove (3), a plurality of extrusion members (5) are evenly installed on the outer surface of the clamping member (2), an extrusion plate (6) is installed at the bottom end of the extrusion member (5), the extrusion plate (6) is arranged between the annular clamping plate (4) and the annular clamping groove (3), the cross section of the extrusion plate (6) is in the shape of an arc, and the axis of the extrusion plate (6) is the same as the axis of the connecting tube (1).

2. A sewage pipe anti-leakage connection structure according to claim 1, characterized in that: The extrusion member (5) comprises a bolt (7) and a round rod (8). The outer surface of the clamp (2) is provided with a plurality of screw holes. The bolt (7) is threadedly connected to the clamp (2) through the screw holes. One end of the bolt (7) passes through the screw holes and is placed in the annular groove (3). One end of the round rod (8) is connected to the end of the bolt (7) placed in the annular groove (3). A circular hole groove (9) is provided on the top surface of the extrusion plate (6). An annular flange (10) is provided on the other end of the round rod (8). An annular groove (11) is provided in the circular hole groove (9). The round rod (8) is rotatably connected to the extrusion plate (6) through the cooperation of the annular flange (10) and the annular groove (11).

3. A sewage pipe anti-leakage connection structure according to claim 2, characterized in that: A sealing strip 1 (12) is installed at the bottom end of the extrusion plate (6), and a sealing strip 2 (13) is installed on a side surface in the annular groove (3) corresponding to the extrusion plate (6).

4. The anti-leakage connection structure for sewage pipes according to claim 1 is characterized in that: The connecting pipe (1) is a corrugated pipe.

5. The anti-leakage connection structure for sewage pipes according to claim 2 is characterized in that: A flow guide platform (14) is installed at the opening of through hole one on the clamp (2), the flow guide platform (14) is placed at the inner edge of the annular clamping groove (3), the diameter of the flow guide platform (14) gradually decreases from the opening of through hole one to the opening away from through hole one, and the diameter of the flow guide platform (14) is greater than or equal to the diameter of through hole one.

6. A sewage pipe anti-leakage connection structure according to claim 5, characterized in that: A clamp (15) is provided on the clamping members (2) at both ends of the connecting pipe (1), a connecting member 1 (16) is installed on the outer side of the clamping member (2), a bolt 2 (17) is installed on the outer side of the clamp (15), a nut 1 (18) is installed on the bolt 2 (17), a screw hole 2 (19) is provided in the middle of the connecting member 1 (16), the clamp (15) is connected to the connecting member 1 (16) through the cooperation of the bolt 2 (17), the screw hole 2 (19) and the nut 1 (18), and a clamping channel is provided in the middle of the clamp (15), and the clamping channel corresponds to the through hole 1.

7. A sewage pipe anti-leakage connection structure according to claim 6, characterized in that: The clamp (15) comprises a left clamp (31) and a right clamp (32), wherein the upper end of the left clamp (31) is provided with a second connecting piece (20), and the upper end of the right clamp (32) is provided with a third connecting piece (21), a rotating shaft (22) is provided in the middle of the second connecting piece (20), and a through hole (2) is provided in the middle of the third connecting piece (21), wherein the left clamp (31) is rotatably connected to the third connecting piece (21) via the second connecting piece (20), the through hole (2) and the rotating shaft (22), and a slot (23) is provided at the lower end of the left clamp (31), and the lower end of the right clamp (32) is placed in the slot (23). The front and rear ends of the slot (23) are provided with long through holes (24); the lower end of the right clamp (32) is provided with a third bolt (25), the third bolt (25) is placed in the long through hole (24), the third bolt (25) is provided with a second nut (26); the lower end of the left clamp (31) is detachably connected to the lower end of the right clamp (32) through the cooperation of the long through hole (24), the third bolt (25) and the second nut (26); the clamping channel is an area enclosed by the left clamp (31) and the right clamp (32); the second bolt (17) is connected to one end of the rotating shaft (22) close to the clamp (2).

8. A sewage pipe anti-leakage connection structure according to claim 7, characterized in that: A connecting piece four (27) is installed on the outer surface of the left clamp (31), a bolt four (28) is installed on the connecting piece four (27), a nut three (29) is installed on the bolt four (28), a connecting piece four (27) is installed on the outer surface of the clamp (2), a screw hole three (30) is provided in the middle of the connecting piece four (27), and the left clamp (31) is connected to the clamp (2) by the cooperation of the screw hole three (30), the bolt four (28) and the nut three (29).

9. The anti-leakage connection structure for sewage pipes according to claim 4, characterized in that: A corrosion-resistant layer is installed on the inner side of the connecting pipe (1).

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