Impact-resistant double-wall corrugated pipe

Abstract

The utility model provides an anti-impact double-wall corrugated pipe, and relates to the technical field of double-wall corrugated pipes, the anti-impact double-wall corrugated pipe comprises a corrugated outer pipe, the inner wall of the corrugated outer pipe is fixedly connected with a soft inner pipe, the outer side of the corrugated outer pipe is provided with a convenient external lining plate mechanism, and the convenient external lining plate mechanism comprises a first arc-shaped clamping plate and a second arc-shaped clamping plate; the inner wall of the first arc-shaped clamping plate and the inner wall of the second arc-shaped clamping plate are jointly and rotationally connected with a rotating rod. According to the impact-resistant double-wall corrugated pipe, through the corrugated outer pipe, the soft inner pipe, the first arc-shaped clamping plate, the second arc-shaped clamping plate, a rotating rod, a fastening bolt, a fastening nut, a support, an arc-shaped soft clamping block, an auxiliary bearing and a hand-twisting screw rod, the first arc-shaped clamping plate and the second arc-shaped clamping plate can relatively rotate around the rotating rod; and therefore, the first arc-shaped clamping plate and the second arc-shaped clamping plate can be conveniently wrapped or detached relative to the corrugated outer pipe and the soft inner pipe, and the relative positions of the first arc-shaped clamping plate and the second arc-shaped clamping plate can be temporarily locked through the fastening bolt and the fastening nut.

Description

Technical Field

[0001] This utility model relates to a double-wall corrugated pipe, specifically an impact-resistant double-wall corrugated pipe, belonging to the technical field of double-wall corrugated pipes. Background Technology

[0002] Double-wall corrugated pipe is a type of plastic pipe with a corrugated outer wall and a smooth inner wall. Its special double-layer structure gives it high ring stiffness while also offering advantages such as material saving and light weight. It is commonly used in municipal engineering for drainage and sewage disposal, as well as in communication cable protection conduits.

[0003] The existing utility model with authorization announcement number CN207599174U discloses a high impact-resistant PVC double-wall corrugated pipe, which is composed of an outer pipe and an inner pipe. It can effectively protect the inner pipe and avoid the pipe body from cracking due to external force. It is equipped with sound-absorbing cotton, metal layer and carbon fiber braided layer, which not only greatly increases the compressive strength of the inner pipe, but also has a sound-absorbing effect. At the same time, it is equipped with a buffer, which can achieve a high-efficiency compressive resistance.

[0004] While the above technical solution increases the compressive strength of the inner tube, it also makes external maintenance inconvenient. Furthermore, it lacks focused pressure resistance in key areas and an easily disassembled external impact-resistant lining structure. This hinders focused pressure resistance and subsequent maintenance of the double-wall corrugated pipe, negatively impacting its overall service life. Therefore, an impact-resistant double-wall corrugated pipe is proposed. Utility Model Content

[0005] This invention proposes an impact-resistant double-wall corrugated pipe to solve the problem that the existing technology lacks an easily disassembled external impact-resistant liner structure, which makes it inconvenient to carry out key pressure resistance and later maintenance on the exterior of the double-wall corrugated pipe, thus adversely affecting the overall service life of the double-wall corrugated pipe.

[0006] This utility model is achieved through the following technical solution: an impact-resistant double-wall corrugated pipe, including a corrugated outer pipe, a soft inner pipe fixedly connected to the inner wall of the corrugated outer pipe, and a convenient external liner mechanism provided on the outer side of the corrugated outer pipe.

[0007] The convenient external liner mechanism includes a first arc-shaped clamping plate and a second arc-shaped clamping plate. A rotating rod is rotatably connected to the inner walls of the first and second arc-shaped clamping plates. Two fastening bolts are provided inside the first and second arc-shaped clamping plates. A fastening nut is threaded onto the outer surface of each fastening bolt. Two brackets are fixedly connected to the outer surfaces of the first and second arc-shaped clamping plates. Two hand-tightening screws are threaded onto the inner wall of each bracket. Two arc-shaped soft clamping blocks are provided on the outer side of each bracket. An auxiliary bearing is fixedly connected to the inner wall of each arc-shaped soft clamping block.

[0008] Specifically, the right side of the first arc-shaped clamping plate is in contact with the left side of the second arc-shaped clamping plate. The outer surface of each fastening bolt is in contact with the inner wall of the first arc-shaped clamping plate and the inner wall of the second arc-shaped clamping plate, respectively. The left end of each fastening nut is in contact with the outer surface of the second arc-shaped clamping plate. The inner wall of each arc-shaped soft clamping block is in contact with the outer surface of the corrugated outer tube. The inner ring of each auxiliary bearing is fixedly connected to the outer surface of the hand-tightening screw. A first anti-slip pad is fixedly connected to the inner wall of the first arc-shaped clamping plate, and the inner wall of the first anti-slip pad is in contact with the outer surface of the corrugated outer tube.

[0009] Furthermore, a second anti-slip pad is fixedly connected to the inner wall of the second arc-shaped clamp, and the inner wall of the second anti-slip pad is in contact with the outer surface of the corrugated outer tube.

[0010] Each of the fastening bolts has a washer fitted on its outer surface, and the right side of each washer is in contact with the outer surface of the first arc-shaped clamp.

[0011] Preferably, each of the hand-tightening screws has an anti-slip sleeve fixedly connected to its outer surface, and each of the anti-slip sleeves has a plurality of identical anti-slip protrusions fixedly connected to its outer surface.

[0012] Furthermore, each of the arc-shaped soft clamps is fixedly connected to a limiting rod on the side away from the corrugated outer tube, and the outer surface of each limiting rod is slidably connected to the inside of the bracket.

[0013] This utility model provides an impact-resistant double-wall corrugated pipe, which has the following beneficial effects:

[0014] This impact-resistant double-walled corrugated pipe, through the cooperation of a corrugated outer pipe, a soft inner pipe, a first arc-shaped clamp, a second arc-shaped clamp, a rotating rod, fastening bolts, fastening nuts, a bracket, an arc-shaped soft clamp, an auxiliary bearing, and a hand-tightening screw, allows the first and second arc-shaped clamps to rotate relative to each other around the rotating rod. This facilitates the wrapping or unwrapping of the first and second arc-shaped clamps relative to the corrugated outer pipe and the soft inner pipe. The fastening bolts and fastening nuts can temporarily lock the relative position of the first and second arc-shaped clamps. With the assistance of the auxiliary bearing, tightening the hand-tightening screw controls the arc-shaped soft clamp. By moving closer to or further away from the corrugated outer tube, the tightness of the first and second arc-shaped clamps relative to the corrugated outer tube can be adjusted. This allows the protection formed by the first and second arc-shaped clamps to provide pressure resistance to key sections of the corrugated outer tube. Furthermore, the first and second arc-shaped clamps are easily disassembled for convenient subsequent maintenance. This facilitates targeted pressure resistance and later maintenance of the corrugated outer tube, avoiding the problem of inconvenient external pressure resistance and later maintenance due to the lack of easily disassembled external impact-resistant lining structures, which could adversely affect the overall service life of the double-walled corrugated tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an impact-resistant double-walled corrugated pipe according to the present invention.

[0016] Figure 2 This is a schematic diagram of the second arc-shaped clamping plate structure of this utility model;

[0017] Figure 3 This is a side view of the first arc-shaped clamping plate of this utility model;

[0018] Figure 4 This is a side-view diagram of the support structure of this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Corrugated outer tube; 2. Flexible inner tube;

[0021] 3. Convenient external liner mechanism; 301. First arc-shaped clamping plate; 302. Second arc-shaped clamping plate; 303. Rotating rod; 304. Fastening bolt; 305. Fastening nut; 306. Bracket; 307. Arc-shaped soft clamping block; 308. Auxiliary bearing; 309. Hand-tightening screw;

[0022] 4. Washer; 5. Second anti-slip pad; 6. First anti-slip pad; 7. Limiting rod; 8. Anti-slip sleeve; 9. Anti-slip protrusion. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0024] Please see Figures 1-4 This utility model provides an impact-resistant double-wall corrugated pipe, including a corrugated outer pipe 1, and a soft inner pipe 2 fixedly connected to the inner wall of the corrugated outer pipe 1. Both the corrugated outer pipe 1 and the soft inner pipe 2 adopt existing mature technology materials and structures, and have the conventional functions and characteristics of traditional double-wall corrugated pipes. A convenient external liner mechanism 3 is provided on the outer side of the corrugated outer pipe 1. The convenient external liner mechanism 3 includes a first arc-shaped clamping plate 301 and a second arc-shaped clamping plate 302. The inner wall of the first arc-shaped clamping plate 301 and the second arc-shaped clamping plate 302 are connected together. The inner wall of 302 is rotatably connected to a rotating rod 303. The right side of the first arc-shaped clamp 301 and the left side of the second arc-shaped clamp 302 are in contact. The inner wall of the first arc-shaped clamp 301 is fixedly connected to a first anti-slip pad 6. The inner wall of the first anti-slip pad 6 is in contact with the outer surface of the corrugated outer tube 1. By setting the first anti-slip pad 6, it can be fixed to the inner wall of the first arc-shaped clamp 301 and fit with the corrugations on the outer surface of the corrugated outer tube 1, which can increase the docking stability of the corrugated outer tube 1 with the first arc-shaped clamp 301.

[0025] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 Two fastening bolts 304 are provided inside the first arc-shaped clamping plate 301 and the second arc-shaped clamping plate 302. The outer surface of each fastening bolt 304 contacts the inner wall of the first arc-shaped clamping plate 301 and the inner wall of the second arc-shaped clamping plate 302 respectively. A fastening nut 305 is threaded onto the outer surface of each fastening bolt 304. The left end of each fastening nut 305 contacts the outer surface of the second arc-shaped clamping plate 302. A second anti-slip pad 5 is fixedly connected to the inner wall of the second arc-shaped clamping plate 302. The inner wall of the second anti-slip pad 5 contacts the outer surface of the corrugated outer tube 1. By setting the second anti-slip pad 5, it can be fixed to the inner wall of the second arc-shaped clamping plate 302 and fit with the corrugation of the outer surface of the corrugated outer tube 1, which can increase the docking stability of the corrugated outer tube 1 with the second arc-shaped clamping plate 302.

[0026] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4Two brackets 306 are fixedly connected to the outer surface of the first arc-shaped clamping plate 301 and the outer surface of the second arc-shaped clamping plate 302. Two hand-tightening screws 309 are threaded to the inner wall of each bracket 306. A washer 4 is fitted on the outer surface of each fastening bolt 304. The right side of each washer 4 is in contact with the outer surface of the first arc-shaped clamping plate 301. By setting the washer 4, it can be placed between the first arc-shaped clamping plate 301 and the fastening bolt 304 and increase the contact area between the two, thereby increasing the fastening effect of the fastening bolt 304.

[0027] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4 Each bracket 306 has two arc-shaped soft clamps 307 on its outer side. The inner wall of each arc-shaped soft clamp 307 is in contact with the outer surface of the corrugated outer tube 1. Each hand-tightening screw 309 has an anti-slip sleeve 8 fixedly connected to its outer surface. Each anti-slip sleeve 8 has several identical anti-slip protrusions 9 fixedly connected to its outer surface. By setting the anti-slip protrusions 9, the anti-slip properties of the outer surface of the anti-slip sleeve 8 can be increased. By setting the anti-slip sleeve 8 and the anti-slip protrusions 9, the anti-slip properties of the outer surface of the hand-tightening screw 309 can be increased together, thus making it easier to turn the hand-tightening screw 309 by hand.

[0028] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4 Each arc-shaped soft clamp 307 has an auxiliary bearing 308 fixedly connected to its inner wall. The inner ring of each auxiliary bearing 308 is fixedly connected to the outer surface of the hand-tightening screw 309. Each arc-shaped soft clamp 307 has a limit rod 7 fixedly connected to its side away from the corrugated outer tube 1. The outer surface of each limit rod 7 is slidably connected to the inside of the bracket 306. By setting the limit rod 7, it can slide back and forth in a directional manner inside the bracket 306, thereby increasing the orientation of the arc-shaped soft clamp 307 when it moves relative to the corrugated outer tube 1.

[0029] When using this utility model: First, during installation, the first arc-shaped clamping plate 301 and the second arc-shaped clamping plate 302 rotate around the rotating rod 303 to open and close, wrapping the two around the outer side of the corrugated outer tube 1 where key protection is needed, so that the first anti-slip pad 6 and the second anti-slip pad 5 are in contact with the outer surface of the corrugated outer tube 1, and the positions of the two are initially fixed by the fastening bolt 304 and the fastening nut 305.

[0030] When the hand screw 309 is tightened, the inner ring of the auxiliary bearing 308 is fixed to the hand screw 309. The rotation of the hand screw 309 drives the arc-shaped soft clamp 307 to move. The limiting rod 7 slides in the bracket 306 to ensure the stability of the movement direction of the arc-shaped soft clamp 307, thereby adjusting the tightness of the arc-shaped soft clamp 307 on the corrugated outer tube 1 and realizing a convenient and tight connection between the external liner mechanism 3 and the corrugated outer tube 1.

[0031] When subjected to impact, the first arc-shaped clamping plate 301 and the second arc-shaped clamping plate 302 form a protective structure. The arc-shaped soft clamping block 307 absorbs part of the impact energy through elastic deformation. The first anti-slip pad 6 and the second anti-slip pad 5 increase friction and prevent the liner mechanism from sliding. At the same time, the structure of the corrugated outer tube 1 and the soft inner tube 2 can also work together to buffer and play a key role in pressure resistance protection. In addition, the convenient external liner mechanism 3 is easy to disassemble and facilitates later maintenance. The entire impact-resistant double-wall corrugated pipe design effectively solves the problem that the lack of an easy-to-disassemble external impact-resistant liner structure makes it inconvenient to carry out key pressure resistance and later maintenance on the outside of the double-wall corrugated pipe, which in turn has an adverse effect on the overall service life of the double-wall corrugated pipe.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shock resistant double-walled bellows comprising a corrugated outer tube (1), characterized in that: The inner wall of the corrugated outer tube (1) is fixedly connected to a soft inner tube (2), and a convenient external liner mechanism (3) is provided on the outer side of the corrugated outer tube (1). The convenient external liner mechanism (3) includes a first arc-shaped clamping plate (301) and a second arc-shaped clamping plate (302). The inner wall of the first arc-shaped clamping plate (301) and the inner wall of the second arc-shaped clamping plate (302) are rotatably connected to a rotating rod (303). The interior of the first arc-shaped clamping plate (301) and the interior of the second arc-shaped clamping plate (302) are provided with two fastening bolts (304). The outer surface of each fastening bolt (304) is threaded with a fastening nut (305). The outer surface of the first arc-shaped clamping plate (301) and the outer surface of the second arc-shaped clamping plate (302) are fixedly connected with two brackets (306). The inner wall of each bracket (306) is threaded with two hand-tightening screws (309). The outer side of each bracket (306) is provided with two arc-shaped soft clamping blocks (307). The inner wall of each arc-shaped soft clamping block (307) is fixedly connected with an auxiliary bearing (308).

2. The impact-resistant double-wall corrugated pipe according to claim 1, characterized in that: The right side of the first arc-shaped clamp (301) is in contact with the left side of the second arc-shaped clamp (302). The outer surface of each fastening bolt (304) is in contact with the inner wall of the first arc-shaped clamp (301) and the inner wall of the second arc-shaped clamp (302). The left end of each fastening nut (305) is in contact with the outer surface of the second arc-shaped clamp (302). The inner wall of each arc-shaped soft clamp (307) is in contact with the outer surface of the corrugated outer tube (1). The inner ring of each auxiliary bearing (308) is fixedly connected to the outer surface of the hand-tightening screw (309). The inner wall of the first arc-shaped clamp (301) is fixedly connected with a first anti-slip pad (6). The inner wall of the first anti-slip pad (6) is in contact with the outer surface of the corrugated outer tube (1).

3. An impact-resistant double-walled bellows according to claim 1, characterized in that: The inner wall of the second arc-shaped clamp (302) is fixedly connected to a second anti-slip pad (5), and the inner wall of the second anti-slip pad (5) is in contact with the outer surface of the corrugated outer tube (1).

4. An impact-resistant double-walled bellows according to claim 1, characterized in that: Each of the fastening bolts (304) has a washer (4) fitted on its outer surface, and the right side of each washer (4) is in contact with the outer surface of the first arc-shaped clamp (301).

5. An impact-resistant double-walled bellows according to claim 1, characterized in that: Each of the hand-tightening screws (309) has an anti-slip sleeve (8) fixedly connected to its outer surface, and each of the anti-slip sleeves (8) has several identical anti-slip protrusions (9) fixedly connected to its outer surface.

6. An impact-resistant double-walled bellows according to claim 1, characterized in that: Each of the arc-shaped soft clamps (307) is fixedly connected to a limiting rod (7) on the side away from the corrugated outer tube (1), and the outer surface of each limiting rod (7) is slidably connected to the inside of the bracket (306).

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