Double-wall corrugated pipe with locking joint

Abstract

The utility model discloses a double-wall corrugated pipe with a locking joint, which relates to the technical field of corrugated pipes, and comprises a double-wall corrugated pipe, one end of the double-wall corrugated pipe is provided with the locking joint, and two ends of the locking joint are respectively provided with a main sealing component; the main sealing assembly comprises a sleeve plate, the sleeve plate is fixedly connected with the middle of the interior of the locking connector, a clamping groove is formed in one side of the sleeve plate, two clamping plates are symmetrically arranged on the inner side of the clamping groove in a sliding mode, a plurality of springs are fixedly connected to one sides of the clamping plates, and one ends of the springs are fixedly connected with the inner side of the adjacent locking connector. And a sealing gasket is arranged on one side of the clamping plate. By means of the multiple sealing assemblies, the main sealing assembly and the secondary sealing assembly act together, the sealing performance is greatly improved, leakage is prevented, meanwhile, self-adaptive locking is arranged, the spring pushes the clamping plate to automatically press the sealing pad, different pipe diameter deviations are adapted, and firm connection is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bellows, specifically a double -walled bellows with locking joint. BACKGROUND

[0002] As a new type of plastic pipe, the double -walled bellows has been widely used in engineering field because of its unique structure design - the smooth inner wall, the annular corrugated outer wall, the special structure makes it have two advantages of light weight and high strength: the corrugated outer wall provides excellent ring stiffness, and the smooth inner wall guarantees the smoothness of fluid, and the current mainstream product is made of high-density polyethylene (HDPE), polypropylene (PP) and other materials, so that it has the characteristics of chemical corrosion resistance, impact resistance, long service life (more than 50 years) and the like, and has become an important substitute for traditional concrete pipe and steel pipe in the fields of municipal drainage, building sewage and cable protection.

[0003] However, in actual engineering application, the weak link of the pipeline system often appears in the connecting part; the socket type connecting mode commonly used in the industry has significant technical defects: first, the sealing is realized by simply relying on the elastic deformation of the rubber sealing ring, and in the long-term use process, problems such as material aging and elastic failure are prone to occur, especially in areas with large temperature difference, the thermal expansion and cold shrinkage effect will cause a gap between the sealing ring and the pipe wall, causing leakage; second, the existing installation also uses tools such as fusion for installation, which is cumbersome and inconvenient to install, and cannot be disassembled, thereby having certain influence.

[0004] Based on this, the double -walled bellows with locking joint is provided, which can eliminate the disadvantages of the existing device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a double -walled bellows with locking joint to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A double -walled bellows with locking joint, including double -walled bellows, the double -walled bellows one end is provided with locking joint, and the locking joint two ends are provided with a main sealing assembly respectively;

[0008] The main sealing assembly includes a sleeve plate, the sleeve plate is fixedly connected with the inner middle part of the locking joint, a clamping groove is formed in one side of the sleeve plate, two clamping plates are symmetrically arranged in the inner side of the clamping groove and slide, a plurality of springs are fixedly connected with one side of the clamping plate, one end of the spring is fixedly connected with the inner side of the adjacent locking joint, and a sealing gasket is arranged on one side of the clamping plate.

[0009] On the basis of the above technical scheme, the utility model further provides the following optional technical scheme:

[0010] In an alternative scheme, the double-wall corrugated pipe is provided with a pipe head at one end adjacent to the locking joint, the pipe head is provided with a connecting groove at one end, and the connecting groove is in sliding connection with the sleeve plate.

[0011] In an alternative scheme, the connecting groove is provided with a rubber sealing ring inside.

[0012] In an alternative scheme, the locking joint is provided with a secondary sealing assembly inside one end.

[0013] In an alternative scheme, the secondary sealing assembly comprises a sealing strip, a plurality of sealing strips are arranged on one side of the locking joint in an array, a plurality of sealing grooves are arranged on the outer side of the double-wall corrugated pipe in an array, and each sealing groove is in sliding connection with the adjacent sealing strip.

[0014] In an alternative scheme, a limiting assembly is arranged between the double-wall corrugated pipe and the locking joint.

[0015] In an alternative scheme, the limiting assembly comprises a connecting column, one end of the connecting column is fixedly connected with the double-wall corrugated pipe, a limiting rod is arranged at the other end of the connecting column, a limiting column is fixedly connected to one side of the middle part of the locking joint, the limiting rod is slidably sleeved on the limiting column, and a limiting bolt is threadedly connected to the upper end of the limiting column.

[0016] In an alternative scheme, the diameter of the head of the limiting bolt is greater than the diameter of the perforation of the limiting rod.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The multiple sealing assemblies are arranged, the primary sealing assembly and the secondary sealing assembly jointly act, the sealing performance is greatly improved, leakage is prevented, the self-adaptive locking is equipped, the spring pushes the clamping plate to automatically press the sealing gasket, different pipe diameter deviations are adapted, the connection is ensured to be firm, the limiting assembly prevents the pipeline from being separated due to external force or vibration, the anti-shock performance is improved, the sliding connection and the bolt fixing mode are adopted as a whole, special tools are not needed, the construction efficiency is high, and the use effect of the utility model is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model.

[0020] Figure 2 It is the overall structure explosion schematic view of the utility model.

[0021] Figure 3 It is the double-wall corrugated pipe structure schematic view of the utility model.

[0022] Figure 4 It is the inside structure schematic view of the locking joint of the utility model.

[0023] Mark annotation: 1, double wall corrugated pipe; 2, locking joint; 3, connecting column; 4, limiting rod; 5, limiting bolt; 6, limiting column; 7, sealing groove; 8, pipe head; 9, connecting groove; 10, cover plate; 11, clamping plate; 12, spring; 13, sealing strip; 14, sealing pad; 15, clamping groove. DETAILED DESCRIPTION

[0024] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the drawings and examples, and the utility model is further detailed.

[0025] In one embodiment, as shown in Figures 1-4 A double wall corrugated pipe with locking joint, including double wall corrugated pipe 1, the double wall corrugated pipe 1 one end is provided with locking joint 2, and the locking joint 2 two ends are respectively provided with a main sealing assembly;

[0026] The main sealing assembly includes cover plate 10, the cover plate 10 is fixedly connected with the inner middle part of locking joint 2, one side of the cover plate 10 is provided with clamping groove 15, two clamping plates 11 are symmetrically arranged in the inner side of the clamping groove 15, a plurality of springs 12 are fixedly connected on one side of the clamping plate 11, one end of the spring 12 is fixedly connected with the inner side of the adjacent locking joint 2, and the clamping plate 11 is provided with sealing pad 14 on one side.

[0027] In the embodiment, first, the one end of the double wall corrugated pipe 1 is slidably inserted into the one end of the locking joint 2, at this time, the pipe head 8 is limited to the inner side of the clamping groove 15, the connecting groove 9 and the cover plate 10 are slidably connected to form a seal, then the clamping plate 11 and the spring 12 cooperate to clamp the outer side of the pipe head 8, and a certain fastening effect is provided.

[0028] In one embodiment, as shown in Figure 3 And 4 The double wall corrugated pipe 1 is provided with pipe head 8 at the adjacent one end of the locking joint 2, one end of the pipe head 8 is provided with connecting groove 9, the connecting groove 9 is slidably connected with cover plate 10, and the first sealing effect is provided by the connecting groove 9 and the cover plate 10.

[0029] In one embodiment, as shown in Figure 3 The inner side of the connecting groove 9 is provided with a rubber sealing ring, and the sealing property of the connecting groove 9 and the cover plate 10 is improved.

[0030] In one embodiment, as shown in Figure 4 One end in the locking joint 2 is provided with a secondary sealing assembly, and the sealing effect is improved.

[0031] In one embodiment, as shown in Figure 3 and 4 The secondary sealing assembly includes a sealing strip 13 arranged on one side of the locking joint 2, and a plurality of sealing grooves 7 are arranged on the outer side of the double-wall corrugated pipe 1. Each sealing groove 7 is in sliding connection with the adjacent sealing strip 13, and the sealing strip 13 is limited to enter the corresponding sealing groove 7 to form a secondary sealing effect.

[0032] In one embodiment, as shown in Figure 1 A limiting assembly is arranged between the double-wall corrugated pipe 1 and the locking joint 2 to improve the stability of the connection between the double-wall corrugated pipe 1 and the locking joint 2.

[0033] In one embodiment, as shown in Figure 1 The limiting assembly includes a connecting column 3, one end of which is fixedly connected with the double-wall corrugated pipe 1, and the other end of the connecting column 3 is limitedly provided with a limiting rod 4. A limiting column 6 is fixedly connected to one side of the middle part of the locking joint 2. One end of the limiting rod 4 is slidingly sleeved on the limiting column 6, and a limiting bolt 5 is threadedly connected to the upper end of the limiting column 6. The limiting rod 4 is sleeved on the limiting column 6 by rotating the limiting rod 4, and finally the limiting bolt 5 is connected to limit the limiting rod 4, thereby realizing the fixation between the double-wall corrugated pipe 1 and the locking joint 2 and improving the fastening of the connection between the double-wall corrugated pipe 1 and the locking joint 2.

[0034] In one embodiment, as shown in Figure 1 The head diameter of the limiting bolt 5 is larger than the perforated diameter of the limiting rod 4 to prevent the limiting rod 4 from falling off.

[0035] The above embodiment discloses a double-wall corrugated pipe with a locking joint. In use, the double-wall corrugated pipe 1 is first slidably inserted into one end of the locking joint 2, and the pipe head 8 is limited to the inside of the clamping groove 15. The connecting groove 9 and the sleeve plate 10 are in sliding connection to form a seal. Then the clamping plate 11 and the spring 12 cooperate to clamp the outer side of the pipe head 8 to provide a certain fastening effect. Then the sealing strip 13 is limited to enter the corresponding sealing groove 7 to form a secondary sealing effect. Finally, the limiting rod 4 is sleeved on the limiting column 6 by rotating the limiting rod 4, and finally the limiting bolt 5 is connected to limit the limiting rod 4, thereby realizing the fixation between the double-wall corrugated pipe 1 and the locking joint 2 and improving the fastening of the connection between the double-wall corrugated pipe 1 and the locking joint 2.

[0036] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A double-wall corrugated pipe with locking joint, comprising a double-wall corrugated pipe (1), one end of the double-wall corrugated pipe (1) is provided with a locking joint (2), and the locking joint (2) is provided with a main sealing assembly at both ends; characterized in that The main sealing assembly comprises a cover plate (10), the cover plate (10) is fixedly connected with the middle part in the locking joint (2), one side of the cover plate (10) is provided with a clamping groove (15), two clamping plates (11) are symmetrically and slidably arranged in the clamping groove (15), a plurality of springs (12) are fixedly connected to one side of the clamping plate (11), one end of the spring (12) is fixedly connected with the inner side of the adjacent locking joint (2), and a sealing gasket (14) is arranged on one side of the clamping plate (11).

2. A double-walled bellows with a locking joint according to claim 1, characterized in that The double-wall corrugated pipe (1) is provided with a pipe head (8) at one end adjacent to the locking joint (2), one end of the pipe head (8) is provided with a connecting groove (9), and the connecting groove (9) is slidably connected with the cover plate (10).

3. A double-walled bellows with a locking joint according to claim 2, characterized in that The connecting groove (9) is provided with a rubber sealing ring on the inner side.

4. A double wall corrugated pipe with a locking joint according to claim 1, characterized in that One end of the locking joint (2) is provided with a secondary sealing assembly.

5. A double-walled bellows with a locking joint according to claim 4, characterized in that The secondary sealing assembly comprises a sealing strip (13), a plurality of sealing strips (13) are arranged on one side in the locking joint (2), and a plurality of sealing grooves (7) are arrayed on the outer side of the double-wall corrugated pipe (1), each sealing groove (7) is slidably connected with the adjacent sealing strip (13).

6. A double-walled bellows with a locking joint according to claim 1, characterized in that A limiting assembly is arranged between the double-wall corrugated pipe (1) and the locking joint (2).

7. A double-walled bellows with a locking joint according to claim 6, characterized in that The limiting assembly comprises a connecting column (3), one end of the connecting column (3) is fixedly connected with the double-wall corrugated pipe (1), the other end of the connecting column (3) is limitingly provided with a limiting rod (4), one side of the middle part of the locking joint (2) is fixedly connected with a limiting column (6), one end of the limiting rod (4) is slidably sleeved on the limiting column (6), and the limiting column (6) is threadedly connected with a limiting bolt (5) at the upper end.

8. A double-walled bellows with a locking joint according to claim 7, characterized in that The head diameter of the limiting bolt (5) is greater than the perforated diameter of the limiting rod (4).

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