Flange connection double-wall corrugated pipe

Abstract

The utility model provides a flange connection double-wall corrugated pipe which comprises double-wall corrugated pipe bodies, two sets of double-wall corrugated pipe bodies are arranged in a butt joint mode, connecting flanges are installed on the surfaces of the connecting ends of the double-wall corrugated pipe bodies, and the connecting flanges comprise the first flange and the second flange. The first flange and the second flange are installed on the outer walls of the connecting ends of the two double-wall corrugated pipe bodies respectively, and inserting openings are formed in the surfaces of the first flange and the second flange at equal intervals. The locking assemblies can lock the positions of the mounting cushion layers and the flanges, meanwhile, the rotating rings are clamped to the bottoms of the bolts through the clamping plates, when the bolts are not moved, the rotating rings cannot rotate, inserting and locking of the two flanges cannot be completed, the stability of mounting and fixing is kept, and meanwhile dismounting and mounting are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of double-wall corrugated pipes, in particular to a flange-connected double-wall corrugated pipe. Background Art

[0002] Double-wall corrugated pipe is a new type of pipe with an annular outer wall and a smooth inner wall. The inner wall of double-wall corrugated pipe is usually blue or black, with some brands using yellow. High-density polyethylene (HDPE) has excellent chemical stability, resistance to aging, and resistance to environmental stress cracking. Double-wall HDPE corrugated pipe is a flexible pipe, and two double-wall corrugated pipes are typically connected using flanges.

[0003] Patent CN218954322U proposes a flange-connected double-wall corrugated pipe, in which a fixing ring is inserted into a first fixing hole opened in a first flange connecting ring, an elastic clip is moved into a second fixing hole, and the first flange connecting ring is connected to the second flange connecting ring. Then, the bolt is rotated into a limiting screw hole to connect the first flange connecting ring to the second flange connecting ring. When disassembling, the elastic clip is squeezed downward by a bolt into the second fixing hole, and the second double-wall corrugated pipe is moved outward for separation. When connecting, the second double-wall corrugated pipe is initially connected to the first double-wall corrugated pipe to prevent the connection between the first double-wall corrugated pipe and the second double-wall corrugated pipe from separating and affecting the installation.

[0004] The above solution requires a large number of bolts to be fixed and installed, and subsequent disassembly and assembly takes a long time. In addition, the disassembly and assembly of the flange and the double-wall corrugated pipe cannot be completed, resulting in inconvenience in use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a flange-connected double-wall corrugated pipe to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Two groups of double-wall corrugated pipes are connected by two flanges. The plug column passes through the two flanges. The locking assembly can lock the position of the installation gasket and the flange. At the same time, the swivel is clamped to the bottom of the bolt through the clamping plate. When the bolt is not moved, the swivel cannot rotate and the plug-in locking of the two flanges cannot be completed, thereby maintaining the stability of the installation and making it more convenient for disassembly and assembly.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a flange-connected double-wall corrugated pipe, comprising a double-wall corrugated pipe body, the double-wall corrugated pipe body having two groups of docking settings, a connecting flange is installed on the connecting end surface of the double-wall corrugated pipe body, and the connecting flange comprises a first flange and a second flange, the first flange and the second flange are respectively installed on the outer walls of the connecting ends of the two double-wall corrugated pipe bodies, plug-in interfaces are equidistantly provided on the surfaces of the first flange and the second flange, and plug-in columns are slidably inserted inside the plug-in interfaces of the first flange and the second flange, a gasket is fixedly sleeved on the corrugated layer at the outer end of the double-wall corrugated pipe body, and a locking assembly is provided between the gasket and the first flange and the second flange, the locking assembly comprises bolts, the bolts are installed on the gasket, and the first flange and the second flange are fixed to the gasket by bolts.

[0007] Furthermore, the connecting flange also includes a swivel, a swivel is rotatably mounted on the outer side of the first flange through a bearing, and connecting plates are equidistantly fixed on the surface of the swivel, an arc rod is fixed on the surface of the connecting plate, a socket is opened on the surface of the plug, and the arc rod can be slidably inserted into the socket.

[0008] Furthermore, a push ring is fixed on the outer side of the second flange at a position corresponding to the insertion column, and the push ring is fixedly connected to one end of the insertion column.

[0009] Furthermore, the trajectory of the arc rod is the same as the rotation trajectory of the swivel.

[0010] Furthermore, the locking assembly also includes a fixing frame, and the fixing frames are fixed at the positions of the top and bottom of the cushion layer corresponding to the bolts, and the bolts are threadedly inserted into the fixing frames.

[0011] Furthermore, a screw barrel is threadedly sleeved on the outer surface of the bolt, and a connecting frame is fixed on the surface of the screw barrel close to the fixing frame. The connecting frame bypasses the bottom of the bolt and is fixedly connected to the first flange or the second flange.

[0012] Furthermore, a clamping plate is fixed on the surface of the rotating ring corresponding to the bolt, and the bottom of the bolt slides through the clamping plate.

[0013] Furthermore, the clamping plate is provided with a clamping slot at a position corresponding to the position through which the bolt passes, and the bolt is inserted into the clamping slot.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model is pre-fixed on the outer side of the connection port of the double-wall corrugated pipe body through a gasket, and is squeezed into contact with the inner walls of the first flange and the second flange. Then, the flange and the gasket are locked and installed by inserting bolts into the inside of the screw barrel. During this process, when the swivel rotates to insert the arc rod into the inside of the plug column, the position of the clamping plate is just rotated to the bottom of the screw barrel. As the bolt descends, it is inserted into the clamping groove of the clamping plate. At this time, the clamping plate is limited by the bolt, and the swivel cannot rotate, keeping the arc rod inserted into the inside of the plug column.

[0016] 2. According to the utility model, when the bolt is rotated upward, the bolt is first released from the clamping plate. At this time, the swivel can be rotated alone to separate the plug column from the arc rod, thereby completing the separation of the first flange and the second flange, while the flange and the gasket still maintain a fixed connection. When the bolt is removed from the top of the screw barrel, the flange can be completely removed from the gasket to complete the separate separation of the flange and the double-wall corrugated pipe. Disassembly and assembly are more convenient and do not require too many bolts for fixing.

[0017] 3. After the first flange and the second flange are combined, the push ring is pushed to pass the plug column through the first flange, and then the swivel is rotated to drive the arc rod through the connecting plate to insert into the plug hole of the plug column, thereby completing the plug-in locking of the first flange and the second flange.

[0018] 4. Compared with the prior art, the present invention has two sets of double-wall corrugated pipes connected by two flanges, and the plug-in column passes through the two flanges. The locking assembly can lock the position of the installation gasket and the flange. At the same time, the swivel is clamped to the bottom of the bolt through the clamping plate. Therefore, when the bolt is not moved, the swivel cannot rotate and the plug-in locking of the two flanges cannot be completed, thereby maintaining the stability of the installation and fixing, and making disassembly and assembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a flange-connected double-wall corrugated pipe according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a flange connecting a double-wall corrugated pipe in the utility model;

[0021] Figure 3 This is a schematic diagram of the connection between the first flange and the second flange of a flange-connected double-wall corrugated pipe of the utility model;

[0022] Figure 4 This is a schematic structural diagram of a locking assembly for a flange-connected double-wall corrugated pipe according to the present invention;

[0023] Figure 5 This is a schematic diagram of the connection between the arc rod and the plug column of a flange-connected double-wall corrugated pipe in the utility model.

[0024] In the figure: 1. Double-wall corrugated pipe body; 2. Connecting flange; 21. First flange; 22. Second flange; 23. Swivel; 24. Push ring; 25. Insert column; 26. Socket; 27. Connecting plate; 28. Arc rod; 3. Locking assembly; 31. Fixing bracket; 32. Bolt; 33. Connecting bracket; 34. Screw barrel; 35. Clamping plate; 36. Clamping groove; 4. Pad. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figures 1 to 5 The utility model provides a technical solution: a flange-connected double-wall corrugated pipe, comprising a double-wall corrugated pipe body 1, wherein the double-wall corrugated pipe body 1 has two sets of docking settings, a connecting flange 2 is installed on the surface of the connecting end of the double-wall corrugated pipe body 1, and the connecting flange 2 includes a first flange 21 and a second flange 22, the first flange 21 and the second flange 22 are respectively installed on the outer walls of the connecting ends of the two double-wall corrugated pipe bodies 1, plug-in interfaces are equidistantly provided on the surfaces of the first flange 21 and the second flange 22, and a plug-in column 25 is slidably inserted into the plug-in interfaces of the first flange 21 and the second flange 22, and the outer surface of the double-wall corrugated pipe body 1 is provided with a plurality of plug-in interfaces. A gasket 4 is fixedly sleeved on the end corrugated layer, and a locking assembly 3 is provided between the gasket 4 and the first flange 21 and the second flange 22. The locking assembly 3 includes bolts 32, and the bolts 32 are installed on the gasket 4. The first flange 21 and the second flange 22 are fixed to the gasket 4 by the bolts 32. When using the device, the gasket 4 is pre-fixed at the connecting ends of the two double-wall corrugated pipe bodies 1 that need to be connected and installed, and the first flange 21 and the second flange 22 are sleeved on the gasket 4. Then the first flange 21 and the second flange 22 are docked, and the position is limited by the plug-in column 25. The flange and the gasket 4 and the flanges are locked by the locking assembly 3.

[0027] In this embodiment, the connecting flange 2 also includes a swivel 23. The outer side of the first flange 21 is rotatably mounted with the swivel 23 through a bearing, and connecting plates 27 are equidistantly fixed on the surface of the swivel 23. An arc rod 28 is fixed on the surface of the connecting plate 27. A socket 26 is provided on the surface of the plug post 25, and the arc rod 28 can be slidably inserted into the socket 26. The outer side of the second flange 22 is fixed with a push ring 24 corresponding to the position of the plug post 25, and the push ring 24 is fixedly connected to one end of the plug post 25. The trajectory of the arc rod 28 is the same as the rotation trajectory of the swivel 23. After the first flange 21 and the second flange 22 are merged, the push ring 24 is pushed to pass the plug post 25 through the first flange 21, and then the swivel 23 is rotated to drive the arc rod 28 to be inserted into the socket 26 of the plug post 25 through the connecting plate 27, thereby completing the plug-in locking of the first flange 21 and the second flange 22.

[0028] In this embodiment, the locking assembly 3 also includes a fixing frame 31, and the fixing frame 31 is fixed at the top and bottom of the gasket 4 at the positions corresponding to the bolts 32, and the bolts 32 are threadedly inserted into the fixing frame 31, and the outer surface of the bolt 32 is threadedly sleeved with a screw barrel 34, and a connecting frame 33 is fixed on the surface of the screw barrel 34 close to the fixing frame 31. The connecting frame 33 bypasses the bottom of the bolt 32 and is fixedly connected to the first flange 21 or the second flange 22. A clamping plate 35 is fixed on the surface of the swivel 23 corresponding to the bolt 32, and the bottom of the bolt 32 slides through the clamping plate 35. The clamping plate 35 is provided with a slot 36 at the position where the bolt 32 passes, and the bolt 32 is inserted into the inside of the slot 36. The gasket 4 is pre-fixed on the outside of the connection port of the double-wall corrugated pipe body 1, and is squeezed into contact with the inner walls of the first flange 21 and the second flange 22. The bolt 32 is then inserted into the inside of the screw barrel 34 to complete the method. When the bolt 32 is removed from the top of the screw barrel 34, the flange can be completely removed from the gasket 4, completing the separate separation of the flange and the double-wall corrugated pipe. Disassembly and assembly are more convenient, and no excessive bolts 32 are required for fixing.

[0029] When using the device, a gasket 4 is pre-fixed at the connection ends of the two double-wall corrugated pipe bodies 1 that need to be connected and installed, and the first flange 21 and the second flange 22 are sleeved on the gasket 4. After the first flange 21 and the second flange 22 are merged, the push ring 24 is pushed to pass the plug 25 through the first flange 21, and then the swivel 23 is rotated to drive the arc rod 28 to be inserted into the socket 26 of the plug 25 through the connecting plate 27, completing the plug-in locking of the first flange 21 and the second flange 22. The gasket 4 is pre-fixed on the outside of the connection port of the double-wall corrugated pipe body 1, and is squeezed into contact with the inner walls of the first flange 21 and the second flange 22. Then, the bolt 32 is inserted into the inside of the screw barrel 34 to complete the locking installation of the flange and the gasket 4. During this process, when the swivel 23 rotates, the arc rod 28 is inserted into the inside of the plug 25 When the bolt 32 is lowered from the top of the screw barrel 34, the flange can be completely removed from the gasket 4 to complete the separate separation of the flange and the double-wall corrugated pipe. Disassembly and assembly are more convenient, and no excessive bolts 32 are required for fixing.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flange-connected double-wall corrugated pipe, comprising a double-wall corrugated pipe body (1), characterized in that: The double-wall corrugated pipe body (1) has two groups of docking arrangements, a connecting flange (2) is installed on the surface of the connecting end of the double-wall corrugated pipe body (1), and the connecting flange (2) includes a first flange (21) and a second flange (22), the first flange (21) and the second flange (22) are respectively installed on the outer walls of the connecting ends of the two double-wall corrugated pipe bodies (1), plug-in interfaces are equidistantly provided on the surfaces of the first flange (21) and the second flange (22), and plug-in columns (25) are slidably inserted inside the plug-in interfaces of the first flange (21) and the second flange (22), a gasket (4) is fixedly sleeved on the corrugated layer at the outer end of the double-wall corrugated pipe body (1), and a locking assembly (3) is provided between the gasket (4) and the first flange (21) and the second flange (22), the locking assembly (3) includes bolts (32), the bolts (32) are installed on the gasket (4), and the first flange (21) and the second flange (22) are fixed to the gasket (4) by the bolts (32).

2. The flange-connected double-wall corrugated pipe according to claim 1 is characterized in that: The connecting flange (2) further comprises a swivel (23), the outer side of the first flange (21) is rotatably mounted with the swivel (23) via a bearing, and connecting plates (27) are fixed equidistantly on the surface of the swivel (23), an arc rod (28) is fixed on the surface of the connecting plate (27), a socket (26) is provided on the surface of the plug column (25), and the arc rod (28) can be slidably inserted into the socket (26).

3. The flange-connected double-wall corrugated pipe according to claim 2 is characterized in that: A push ring (24) is fixed on the outer side of the second flange (22) at a position corresponding to the insertion column (25), and the push ring (24) is fixedly connected to one end of the insertion column (25).

4. The flange-connected double-wall corrugated pipe according to claim 3 is characterized in that: The trajectory of the arc rod (28) is the same as the rotation trajectory of the rotating ring (23).

5. The flange-connected double-wall corrugated pipe according to claim 2 is characterized in that: The locking assembly (3) further comprises a fixing frame (31), the fixing frames (31) being fixed at positions corresponding to the bolts (32) on the top and bottom of the cushion layer (4), and the bolts (32) being threadedly inserted into the fixing frames (31).

6. The flange-connected double-wall corrugated pipe according to claim 5 is characterized in that: The outer surface of the bolt (32) is threadedly sleeved with a screw barrel (34), and a connecting frame (33) is fixed on the surface of the screw barrel (34) on the side close to the fixing frame (31). The connecting frame (33) bypasses the bottom of the bolt (32) and is fixedly connected to the first flange (21) or the second flange (22).

7. The flange-connected double-wall corrugated pipe according to claim 6 is characterized in that: A clamping plate (35) is fixed on the surface of the rotating ring (23) corresponding to the bolt (32), and the bottom of the bolt (32) slides through the clamping plate (35).

8. The flange-connected double-wall corrugated pipe according to claim 7 is characterized in that: The clamping plate (35) is provided with a clamping groove (36) at a position corresponding to the position through which the bolt (32) passes, and the bolt (32) is inserted into the clamping groove (36).

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