CN220688367U - Anti-deformation PVC pipe - Google Patents

Abstract

The utility model relates to a deformation-resistant PVC pipe, which comprises a pipe body, wherein a sleeve joint pipe head and a scarf joint pipe head are respectively arranged at two ends of the pipe body. The utility model can greatly enhance the structural strength of the butt joint part through reasonable structural design, thereby greatly improving the deformation resistance of the butt joint part, further greatly reducing the probability of reduced tightness in the use process, greatly reducing the probability of environmental destruction, safety accidents and resource waste, and greatly reducing the maintenance times and difficulty.

Description

Anti-deformation PVC pipe

Technical Field

The utility model relates to the field of pipes, in particular to an anti-deformation PVC pipe.

Background

In the published patent document with the name of 201921878369.7 and the name of "pipe assembly with novel anti-drop sealing structure", a technical scheme related to an assembly structure of a pipe assembly is disclosed, wherein two pipes of the scheme are assembled together by matching and sleeving a socket section and a bell section, and sealing is performed between the socket section and the bell section by utilizing a sealing ring. As can be seen from the drawings in the specification of the publication, its spigot and socket sections are integrally formed on the corresponding ends of the tubing. When the pipe is made of plastic, the socket section and the spigot section are both made of plastic, which results in limited structural strength of the socket section and the spigot section. When such pipe assemblies are laid in a buried manner, irregular deformations of the socket and/or spigot sections are extremely likely to occur due to uneven pressure of the landfill and long-term impact of the internal fluid.

As shown in fig. 9, when there are uneven forces F1 and F2 (F1 is a force that the external landfill directly acts on the socket segment, and F2 is a force that the external landfill acts on the pipe to cause irregular deformation of the socket segment), this may cause the socket segment 100 and the socket segment 200 to be deformed out of synchronization, which may easily cause that part of the socket segment 100 and/or the socket segment 200 may not be completely tightly contacted with the seal ring 300, or even that part of the seal ring 300 may be separated from the socket segment 100 and/or the socket segment 200 (which may directly cause the gap 400 to occur), and thus may cause the sealing effect of the seal ring 300 to be reduced, so that after a period of use, leakage may easily occur at the socket joint of the socket segment 100 and the socket segment 200. Because such leakage occurs underground and is extremely difficult to directly find, often leaking fluid (e.g., water) is found after the ground collapses over a large area, which can not only lead to environmental damage, but also easily cause safety accidents and cause great inconvenience to maintenance personnel. And when it is used as a water supply pipe, it also causes waste of resources. Therefore, there is a great need to design a deformation-resistant PVC pipe to solve the above technical problems.

Disclosure of Invention

The utility model aims to solve the problems and the defects, and provides the deformation-resistant PVC pipe which can greatly enhance the structural strength of a butt joint part through reasonable structural design, so that the deformation-resistant performance of the butt joint part can be greatly improved, the probability of occurrence of reduced tightness in the using process can be greatly reduced, the probability of environmental destruction, safety accidents and resource waste can be greatly reduced, and the maintenance times and difficulty can be greatly reduced.

The technical scheme of the utility model is realized as follows: the utility model provides a PVC pipe of anti deformation, includes the pipe body, the both ends of pipe body are provided with overlap tube head, scarf joint tube head respectively, and its characteristics are that inlay in the overlap tube head is equipped with first reinforcing lining, inlay in the tube head and be equipped with the second reinforcing lining.

Preferably, the sleeve joint is a horn pipe with a small inner end and a large outer end, the first reinforced lining is also a horn pipe, the first reinforced lining is matched with the inner hole of the sleeve joint, and the large hole wall of the first reinforced lining is provided with an anti-falling convex ring.

Preferably, a first reinforcing convex ring is arranged on the outer surface of the first reinforcing lining, a first annular sleeve part matched with the first reinforcing convex ring is arranged on the pipe body, the first annular sleeve part protrudes out of the outer circumferential surface of the pipe body, and the first annular sleeve part is sleeved on the first reinforcing convex ring.

Preferably, a first convex baffle ring is arranged on the outer circumferential surface of the first reinforced lining, and the first convex baffle ring is propped against the outer end face of the sleeve joint.

Preferably, the anti-deformation PVC pipe further comprises an elastic anti-falling part and at least one locking part, wherein the elastic anti-falling part is arranged on the outer wall of the embedding pipe head, and the locking part sequentially penetrates through the elastic anti-falling part and the pipe wall of the embedding pipe head and then is locked on the second reinforced lining.

Preferably, the scarf joint tube head is a corrugated pipe, the inner surface and the outer surface of the scarf joint tube head are corrugated surfaces, a corrugated convex part matched with the inner wall of the scarf joint tube head is arranged on the outer circumferential surface of the second reinforcing lining, and the inner surface of the scarf joint tube head is attached to the corrugated convex part.

Preferably, the trough on the outer surface of the scarf joint pipe head forms a limiting ring groove, and a sealing rubber ring is embedded in the limiting ring groove.

Preferably, an extension pipe is formed by extending the inner end of the second reinforcing liner inwards, a second reinforcing convex ring is arranged on the outer wall of the extension pipe, a second annular sleeve part matched with the second reinforcing convex ring is arranged on the pipe body, the second annular sleeve part protrudes out of the outer circumferential surface of the pipe body, and the second annular sleeve part is sleeved on the second reinforcing convex ring.

Preferably, a second convex baffle ring is arranged on the outer circumferential surface of the second reinforced lining, and the second convex baffle ring is propped against the outer end face of the scarf joint pipe head.

Preferably, the first reinforcing liner and the second reinforcing liner are both stainless steel pipe structures.

The utility model has the beneficial effects that: on this anti-deformation PVC pipe, through inlay first enhancement inside lining, second enhancement inside lining respectively in nipple head, scarf joint tube head, can strengthen the structural strength of nipple head, scarf joint tube head effectively, this structural strength that just can strengthen butt joint department greatly to just can improve the anti-deformation performance of butt joint department greatly, and then can the greatly reduced probability that the leakproofness reduces appears in the use, this just can the greatly reduced environment receive destruction, the incident takes place with the probability of wasting of resources, and can the number of times and the degree of difficulty of maintenance greatly reduced.

Drawings

FIG. 1 is a schematic perspective view of a deformation-resistant PVC pipe according to the present utility model.

FIG. 2 is a schematic cross-sectional view of a deformation-resistant PVC pipe according to the present utility model.

Fig. 3 is an enlarged schematic view of the portion a of fig. 2 according to the present utility model.

Fig. 4 is a schematic cross-sectional view of a tube body according to the present utility model.

FIG. 5 is a schematic perspective view of a second reinforcing liner according to the present utility model.

FIG. 6 is a schematic perspective view of a first reinforcing liner according to the present utility model.

Fig. 7 is a schematic diagram of a split structure of the elastic anti-drop member in the present utility model.

Fig. 8 is a schematic structural view of the present utility model in a use state.

Fig. 9 is a schematic structural view of a conventional pipe in a state of uneven stress after butt joint.

Description of the embodiments

As shown in fig. 1 and 2, the anti-deformation PVC pipe according to the present utility model includes a pipe body 1, two ends of the pipe body 1 are respectively provided with a nipple 11 and a scarf joint 12, in order to achieve the purpose of the present utility model, the nipple 11 is embedded with a first reinforcing liner 2, and the scarf joint 12 is embedded with a second reinforcing liner 3.

On this anti-deformation PVC pipe, through inlay respectively inlay in the nipple head 11, scarf joint tube head 12 and strengthen inside lining 2, second, can strengthen the structural strength of nipple head 11, scarf joint tube head 12 effectively, this structural strength that just can strengthen butt joint department greatly, thereby just can improve the anti-deformation performance of butt joint department greatly, and then can greatly reduced the probability that the leakproofness reduces in the use appears, this just can greatly reduced the environment receives destruction, the incident takes place with the probability of wasting of resources, and the number of times and the degree of difficulty that can greatly reduced maintain.

As shown in fig. 2, the ferrule head 11 is a trumpet pipe with a small inner end and a large outer end, the first reinforced liner 2 is also a trumpet pipe, the first reinforced liner 2 is matched with the inner hole of the ferrule head 11, and the large hole wall of the first reinforced liner 2 is provided with an anti-falling convex ring 21. The horn tube is adopted to facilitate sleeving, so that the convenience of assembly can be improved. The anti-falling convex ring 21 can be matched with the anti-falling piece during butt joint use to achieve the effect of limiting and anti-falling, so that the butt joint is ensured to be very stable and reliable.

As shown in fig. 2, 4 and 6, the outer surface of the first reinforced liner 2 is provided with a first reinforced convex ring 22, the pipe body 1 is provided with a first annular sleeve portion 13 matched with the first reinforced convex ring 22, the first annular sleeve portion 13 protrudes out of the outer circumferential surface of the pipe body 1, and the first annular sleeve portion 13 is sleeved on the first reinforced convex ring 22. Through the cooperation of first ring cover portion 13 and first strengthening bulge loop 22, not only can strengthen the stability and the reliability of first reinforcement inside lining 2 installation location, can also provide high-strength operation position for the workman when carrying out the butt joint operation to can avoid the pipe body 1 of getting bad in the butt joint operation in-process.

As shown in fig. 2 and 6, a first protruding stop ring 23 is disposed on the outer circumferential surface of the first reinforcing liner 2, and the first protruding stop ring 23 is pressed against the outer end surface of the nipple 11. This not only serves as a shielding protection, but also as a reinforcement for the ports, thereby helping to further improve the reliability of the deformation resistant PVC pipe.

As shown in fig. 1 to 3, the deformation-resistant PVC pipe further comprises an elastic anti-falling member 4 and at least one locking member 5, wherein the elastic anti-falling member 4 is disposed on the outer wall of the scarf joint pipe head 12, and the locking member 5 sequentially passes through the elastic anti-falling member 4 and the pipe wall of the scarf joint pipe head 12 and then is locked on the second reinforced liner 3. The elastic anti-drop piece 4 is not only beneficial to butt joint, but also plays a very good anti-drop role after butt joint. By adopting the locking structure for the locking piece 5, the locking part of the locking piece 5 can be ensured to have very high structural strength, so that the locking of the locking piece 5 can be ensured to be very stable and reliable, and the stability and reliability of the installation and positioning of the elastic anti-falling piece 4 can be improved.

As shown in fig. 3, the locking member 5 is a locking screw, a locking pin, a rivet, or the like. This can satisfy the need to lock the elastic escape prevention member 4.

As shown in fig. 1 and 7, the elastic anti-drop member 4 includes two ferrule members 41, the ferrule members 41 include a circular arc-shaped clasp 411 and a plurality of elastic barbs 412, and each elastic barb 412 is uniformly disposed on the outer circumferential surface of the circular arc-shaped clasp 411 along the circumferential direction of the circular arc-shaped clasp 411; the two clamping sleeve pieces 41 are respectively clamped on two sides of the scarf joint pipe head 12 through the circular arc-shaped clamping rings 411, and the circular arc-shaped clamping rings 411 of the two clamping sleeve pieces 41 are locked through the locking piece 5. This can facilitate the installation of the elastic anti-slip member 4 while improving the anti-slip strength of the elastic anti-slip member 4, thereby contributing to the improvement of the reliability and the convenience of assembly of the deformation-resistant PVC pipe.

As shown in fig. 1 to 3, in order to ensure a very high reliability of the mounting and positioning of the elastic anti-slip-off element 4, two locking elements 5 may be inserted in the circular arc-shaped snap ring 411 beside each elastic barb 412, with the two locking elements 5 being located on both sides of the elastic barb 412, respectively, and with the two locking elements 5 being arranged side by side along the axial direction of the scarf joint pipe head 12. Therefore, the elastic anti-falling piece 4 can be limited very stably, and the installation and positioning of the elastic anti-falling piece 4 can be guaranteed to be very stable and reliable.

As shown in fig. 2 to 5, the scarf joint pipe head 12 is a corrugated pipe, the inner surface and the outer surface of the scarf joint pipe head 12 are corrugated surfaces, the outer circumferential surface of the second reinforced liner 3 is provided with a corrugated protrusion 31 matched with the inner wall of the scarf joint pipe head 12, and the inner surface of the scarf joint pipe head 12 is attached to the corrugated protrusion 31. This not only improves the structural strength of the second reinforcing liner 3, but also improves the stability and reliability of the assembly of the second reinforcing liner 3 with the scarf joint 12, thereby helping to further improve the deformation resistance of the deformation-resistant PVC pipe.

As shown in fig. 1 to 4, the trough on the outer surface of the scarf joint pipe head 12 forms a limiting ring groove 121, and the sealing rubber ring 10 is embedded on the limiting ring groove 121. The sealing rubber ring 10 can be limited through the scarf joint pipe head 12, and the sealing rubber ring 10 can be limited through the corrugated convex parts 31, so that the mounting and positioning of the sealing rubber ring 10 can be ensured to be very stable and reliable. And this can guarantee that the installation department of sealing rubber ring 10 has very high structural strength, this can guarantee the installation location of sealing rubber ring 10 is very accurate stable.

As shown in fig. 1 to 5 and 8, the number of peaks on the corrugated protrusion 31 is 3; correspondingly, there are 3 peaks on the outer surface of the engagement tube head 12, so that there are two valleys on the engagement tube head 12, the valleys remote from the tube body 1 forming the limit groove 121, and the elastic anti-slip member 4 being arranged in the valleys close to the tube body 1. In this way, when the sealing rubber ring 10 is embedded, the elastic anti-falling piece 4 is arranged outside, so that the sealing effect is very good, the elastic anti-falling piece 4 can be prevented from being influenced by fluid, and the elastic anti-falling piece 4 can keep good anti-falling effect for a long time.

As shown in fig. 1 to 3, the elastic anti-slip member 4 may be fitted into the trough or may be disposed only at the bottom of the trough. In order to enhance the locking strength of the locking piece 5, a thickened flat bottom trough 311 is formed in the trough of the corrugated protrusion 31 corresponding to the installation position of the elastic anti-falling piece 4, so that the flat bottom trough is formed on the outer wall of the embedded joint pipe head 12, the installation locking of the elastic anti-falling piece 4 can be facilitated, the locking of the locking piece 5 can be ensured to be quite stable and reliable, and the stability and reliability of the installation positioning of the elastic anti-falling piece 4 can be improved.

Glue can be adopted to bond, fix and seal the joint pipe head 12 and the second reinforced lining 3 and the joint pipe head 11 and the first reinforced lining 2, so that the connection is very stable and reliable.

As shown in fig. 2 to 5, the inner end of the second reinforcing liner 3 is extended inward to form an extension pipe 32, a second reinforcing collar 33 is provided on the outer wall of the extension pipe 32, a second collar portion 14 matched with the second reinforcing collar 33 is provided on the pipe body 1, the second collar portion 14 protrudes out of the outer circumferential surface of the pipe body 1, and the second collar portion 14 is sleeved on the second reinforcing collar 33. By the cooperation of the second annular sleeve portion 14 and the second reinforcing convex ring 33, not only the stability and reliability of the installation and positioning of the second reinforcing liner 3 can be enhanced, but also a high-strength operation position can be provided for a worker during the butt joint operation, so that the pipe body 1 can be prevented from being damaged during the butt joint operation.

The pipe body 1 is a PVC pipe, so that the anti-deformation PVC pipe can be obtained.

As shown in fig. 8, the sum of the length of the extension pipe 32 and the length of the second reinforcing liner 3 is smaller than the depth of the second reinforcing liner 3, so that the second loop portion 14 and the second reinforcing collar 33 are both far from the port of the nipple 11 before the end of the butt joint is completed, thereby facilitating the butt joint operation.

As shown in fig. 2, 3 and 5, a second protruding stop ring 34 is disposed on the outer circumferential surface of the second reinforcing liner 3, and the second protruding stop ring 34 is pressed against the outer end surface of the scarf joint pipe head 12. This not only serves as a shielding protection, but also as a reinforcement for the ports, thereby helping to further improve the reliability of the deformation resistant PVC pipe.

The first reinforcing liner 2 and the second reinforcing liner 3 are both stainless steel pipe structures. This enables the first reinforcing liner 2 and the second reinforcing liner 3 to have very high structural strength and durability, thereby helping to extend the service life of the deformation-resistant PVC pipe.

In the actual manufacturing process, the scarf joint pipe head 12 and the ferrule pipe head 11 can be respectively coated on the second reinforced lining 3 and the first reinforced lining 2 in a hot melt compression mode. Thus, the requirements of actual manufacture can be well met.

When it is desired to dock two anti-deformation PVC pipes together, as shown in fig. 8, the scarf joint 12 on one of the anti-deformation PVC pipes is made to nest on the scarf joint 11 on the other anti-deformation PVC pipe. The sealing rubber ring 10 is tightly pressed on the inner surface of the first reinforced lining 2, and each elastic barb 412 is elastically pressed on the inner end surface of the anti-falling convex ring 21. This allows the two anti-deformation PVC pipes to be stably butted together.

In the actual manufacturing process, the deformation-resistant PVC pipes with different lengths can be manufactured first, so that users can splice pipelines with different lengths, and the PVC pipes can be used in various paving environments.

Claims (10)

1. The utility model provides an anti-deformation PVC pipe, includes pipe body (1), the both ends of pipe body (1) are provided with nipple (11), scarf joint tube head (12) respectively, its characterized in that: the first reinforcing lining (2) is embedded in the sleeve joint pipe head (11), and the second reinforcing lining (3) is embedded in the sleeve joint pipe head (12).

2. The anti-deformation PVC pipe according to claim 1, wherein: the sleeve joint pipe head (11) is a horn pipe with a small inner end and a large outer end, the first reinforced lining (2) is also a horn pipe, the first reinforced lining (2) is matched with an inner hole of the sleeve joint pipe head (11), and an anti-falling convex ring (21) is arranged on the large hole wall of the first reinforced lining (2).

3. The anti-deformation PVC pipe according to claim 1, wherein: the outer surface of the first reinforced lining (2) is provided with a first reinforced convex ring (22), the pipe body (1) is provided with a first annular sleeve part (13) matched with the first reinforced convex ring (22), the first annular sleeve part (13) protrudes out of the outer circumferential surface of the pipe body (1), and the first annular sleeve part (13) is sleeved on the first reinforced convex ring (22).

4. The anti-deformation PVC pipe according to claim 1, wherein: a first convex baffle ring (23) is arranged on the outer circumferential surface of the first reinforced lining (2), and the first convex baffle ring (23) is propped against the outer end face of the sleeve joint pipe head (11).

5. The anti-deformation PVC pipe according to claim 1, wherein: the pipe joint is characterized by further comprising an elastic anti-falling part (4) and at least one locking part (5), wherein the elastic anti-falling part (4) is arranged on the outer wall of the embedding pipe head (12), and the locking part (5) sequentially penetrates through the elastic anti-falling part (4) and the pipe wall of the embedding pipe head (12) and then is locked on the second reinforced lining (3).

6. The anti-deformation PVC pipe according to claim 1, wherein: the scarf joint tube head (12) is a corrugated tube, the inner surface and the outer surface of the scarf joint tube head (12) are corrugated surfaces, a corrugated convex part (31) matched with the inner wall of the scarf joint tube head (12) is arranged on the outer circumferential surface of the second reinforced lining (3), and the inner surface of the scarf joint tube head (12) is attached to the corrugated convex part (31).

7. The anti-deformation PVC pipe according to claim 6, wherein: the trough on the outer surface of the scarf joint pipe head (12) forms a limiting ring groove (121), and a sealing rubber ring (10) is embedded on the limiting ring groove (121).

8. The anti-deformation PVC pipe according to claim 1, wherein: the inner end of the second reinforced lining (3) extends inwards to form an extension pipe (32), a second reinforced convex ring (33) is arranged on the outer wall of the extension pipe (32), a second annular sleeve part (14) matched with the second reinforced convex ring (33) is arranged on the pipe body (1), the second annular sleeve part (14) protrudes out of the outer circumferential surface of the pipe body (1), and the second annular sleeve part (14) is sleeved on the second reinforced convex ring (33).

9. The anti-deformation PVC pipe according to claim 1, wherein: the second reinforcing lining (3) is provided with a second convex baffle ring (34) on the outer circumferential surface, and the second convex baffle ring (34) is propped against the outer end face of the scarf joint pipe head (12).

10. The anti-deformation PVC pipe according to any one of claims 1 to 9, wherein: the first reinforcing lining (2) and the second reinforcing lining (3) are of stainless steel pipe structures.