PVC-U non-excavation spiral winding profile

Abstract

The utility model provides a PVC-U non-excavation spiral winding sectional material. The PVC-U non-excavation spiral winding sectional material comprises a PVC-U sectional material body, a male lock catch, a female lock catch, an auxiliary reinforcing mechanism, a limiting mechanism and a lining. The male lock catch and the female lock catch are arranged on the two sides of the PVC-U profile respectively and matched with each other. The auxiliary reinforcing mechanism is arranged on the PVC-U profile so as to support the female lock catch; the limiting mechanism and the lining are arranged in the female lock catch, and the male lock catch is sleeved with a water swelling strip layer. Water is contained in the lining, and when water leaks at the joint of the male lock catch and the female lock catch and liquid in the pipeline permeates, the water swelling strip layer swells under the action of the liquid. According to the PVC-U non-excavation spiral winding sectional material, through the synergistic effect of the water swelling strip layer, the auxiliary reinforcing mechanism and the limiting mechanism, the sealing performance of the connecting position is improved, the structural stability is enhanced, horizontal displacement of a lock catch is prevented, and the service life of a pipeline is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields, concretely relates to a PVC-U non-excavation spiral winding profile. BACKGROUND

[0002] As the key infrastructure of the city, underground pipeline is vital to the social development and people's life, and can be called the "lifeline" of the city. However, in the process of use, the pipeline may have problems such as rupture, leakage and corrosion, which seriously affect its function. The traditional excavation repair method will have a great impact on traffic, environment and economy, especially in the bustling city area, it may also damage the surrounding structures. Therefore, the non-excavation pipeline repair technology emerges as the times require. This technology can repair the pipeline in situ without excavating the ground, basically without affecting the traffic, and has less impact on traffic, environment and economy, so it has been widely used in the field of pipeline repair.

[0003] At present, the spiral winding non-excavation repair technology adopts spiral winding profile, which is wound into a pipe under the mechanical action of the winding machine, and is formed into a pipe in the original pipeline of the underground pipeline. The general spiral winding pipe involves the winding engagement of two profiles, the connection between the A profile layers is realized through the ring winding of the A profile and the meshing effect of the B profile on the A profile, but due to the pipe formed by meshing, the connection will cause leakage phenomenon after long-term use, thereby affecting the continuous use. UTILITY MODEL CONTENT

[0004] The utility model provides a PVC-U non-excavation spiral winding profile, through the synergistic effect of the water-swelling water stop strip layer, the auxiliary reinforcing mechanism and the limiting mechanism, the sealing performance of the connection is improved, the structural stability is enhanced, the horizontal displacement of the lock catch is prevented, and the service life of the pipeline is prolonged.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a PVC-U non-excavation spiral winding profile, comprising: PVC-U profile, male lock catch, female lock catch, auxiliary reinforcing mechanism, limiting mechanism and bushing;

[0006] The male lock catch and the female lock catch are respectively arranged on the two sides of the PVC-U profile and are adapted to each other;

[0007] The auxiliary reinforcing mechanism is arranged on the PVC-U profile to support the female lock catch;

[0008] The limiting mechanism and the bushing are both arranged in the female lock catch, and the male lock catch is sleeved with a water-swelling water stop strip layer;

[0009] The water contained in the liner can leak at the connecting position of the male lock buckle and the female lock buckle, so that the water-expanding waterstop layer expands when the liquid in the pipeline penetrates, at this time, the liner will break to provide space for the expanded water-expanding waterstop layer, and the limiting mechanism extends into the auxiliary reinforcing mechanism to limit the horizontal position of the male lock buckle and the female lock buckle.

[0010] Preferably, the auxiliary reinforcing mechanism comprises a T-shaped piece and a reinforcing piece, the T-shaped piece is installed on the PVC-U profile, and the reinforcing piece is arranged on the T-shaped piece and supports the female lock buckle.

[0011] Preferably, the reinforcing piece comprises a sleeve, a water-expanding waterstop and a rubber film, the sleeve is fixedly sleeved on the PVC-U profile and is provided with an opening at the position facing the female lock buckle, the rubber film is installed at the opening, and the water-expanding waterstop is installed in the sleeve.

[0012] Preferably, the limiting mechanism comprises a supporting strip, a T-shaped water-expanding waterstop and a piercing shaft, the female lock buckle is internally provided with a receiving groove and a channel, the receiving groove is communicated with the channel, the supporting strip is installed in the receiving groove and is connected with the piercing shaft through the T-shaped water-expanding waterstop, one end of the piercing shaft extends into the channel in a sliding mode, the channel forms a through hole at the outer wall of the female lock buckle, the through hole faces the rubber film, and a rubber film piece is installed at the through hole.

[0013] Preferably, the number of the piercing shafts is multiple, and the piercing ends of the piercing shafts are V-shaped.

[0014] Preferably, the T-shaped piece is integrally formed with the PVC-U profile.

[0015] The utility model has the advantages of:

[0016] The water-expanding waterstop layer sleeved on the male lock buckle expands when liquid in the pipeline penetrates after leakage at the connecting position of the male lock buckle and the female lock buckle, the liner contains water, breaks when the waterstop layer expands, provides space for the expanded waterstop layer, and enables the waterstop layer to fully expand and fill the gap, effectively prevents further leakage, significantly improves the sealing performance of the connecting position compared with the traditional spiral winding pipe, and reduces various problems caused by leakage.

[0017] The auxiliary reinforcing mechanism supports the female lock buckle, the T-shaped piece is integrally formed with the PVC-U profile, the connection strength of the auxiliary reinforcing mechanism and the profile main body is enhanced, the sleeve in the reinforcing piece is fixed on the PVC-U profile, the water-expanding waterstop in the sleeve provides supporting force to the female lock buckle after expansion, the stability of the female lock buckle is enhanced, the structural stability of the whole pipeline connecting position is improved, and the risk of deformation or damage caused by stress is reduced.

[0018] The limiting mechanism cooperates with the water-swelling sealing strip layer, when liquid penetrates, the water-swelling sealing strip layer expands, the T-shaped water-swelling sealing strip in the limiting mechanism expands, pushes the pricking shaft to penetrate the rubber film sheet and pricks the auxiliary reinforcing mechanism, the pricking shafts of the multiple V-shaped pricking ends limit the horizontal position of the male and female buckles from multiple positions, prevent the horizontal displacement of the two buckles, ensure the stability of the connecting part during sealing, ensure the tight, stable and reliable connection of the pipeline during long-term use, and prolong the service life of the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 A structural schematic diagram of a PVC-U trenchless spiral winding profile according to the present application is shown in the figure.

[0021] Figure 2 Another perspective structural schematic diagram of a PVC-U trenchless spiral winding profile according to the present application is shown in the figure.

[0022] Figure 3 A top view sectional structural schematic diagram of a PVC-U trenchless spiral winding profile according to the present application is shown in the figure.

[0023] Figure 4 A partial structural schematic diagram in the figure. Figure 3

[0024] Reference numerals in the figure: 1, PVC-U profile; 2, male buckle; 3, female buckle; 31, placing groove; 32, channel; 4, auxiliary reinforcing mechanism; 41, T-shaped sheet; 42, sleeve; 43, water-swelling sealing strip; 44, rubber film; 5, limiting mechanism; 51, supporting strip; 52, T-shaped water-swelling sealing strip; 53, pricking shaft; 54, rubber film sheet; 6, bushing; 7, water-swelling sealing strip layer. DETAILED DESCRIPTION

[0025] The technical scheme of the present application will be described clearly and completely in combination with the drawings of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application. ​

[0026] According to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a PVC-U non-excavation spiral winding profile comprises: a PVC-U profile 1, a male lock buckle 2, a female lock buckle 3, an auxiliary reinforcing mechanism 4, a limiting mechanism 5 and a bushing 6.

[0027] The male lock buckle 2 and the female lock buckle 3 are respectively arranged on both sides of the PVC-U profile 1 and are adapted to each other.

[0028] The auxiliary reinforcing mechanism 4 is arranged on the PVC-U profile 1 to support the female lock buckle 3.

[0029] The limiting mechanism 5 and the bushing 6 are both arranged in the female lock buckle 3, and the male lock buckle 2 is sleeved with a water-swelling waterstop layer 7.

[0030] The bushing 6 contains water, so that when the connection between the male lock buckle 2 and the female lock buckle 3 leaks and the liquid in the pipeline seeps in, the water-swelling waterstop layer 7 swells under the action of the liquid. At this time, the bushing 6 will be broken to provide space for the swollen water-swelling waterstop layer 7, and at the same time, the limiting mechanism 5 extends into the auxiliary reinforcing mechanism 4 to limit the horizontal position of the male lock buckle 2 and the female lock buckle 3.

[0031] The male lock buckle 2 and the female lock buckle 3 are respectively arranged on both sides of the PVC-U profile 1 and are adapted to each other, which is the basic structure for connecting the profiles, the auxiliary reinforcing mechanism 4 is arranged on the PVC-U profile 1 to support the female lock buckle 3, which can enhance the stability of the female lock buckle 3 and reduce the deformation or damage of the female lock buckle 3 due to stress during use, the limiting mechanism 5 and the bushing 6 are arranged in the female lock buckle 3, and the male lock buckle 2 is sleeved with the water-swelling waterstop layer 7, when the connection between the male lock buckle 2 and the female lock buckle 3 leaks and the liquid in the pipeline seeps in, the water-swelling waterstop layer 7 swells, at this time the bushing 6 is broken due to the excessive pressure of the swollen water-swelling waterstop layer 7, providing space for the swollen waterstop layer, at the same time, the limiting mechanism 5 extends into the auxiliary reinforcing mechanism 4 to limit the horizontal position of the male lock buckle 2 and the female lock buckle 3, preventing horizontal displacement at the connection, further ensuring the tightness and stability of the connection.

[0032] In specific embodiments, the auxiliary reinforcing mechanism 4 comprises a T-shaped piece 41 and a reinforcing piece, the T-shaped piece 41 is installed on the PVC-U profile 1, and the reinforcing piece is arranged on the T-shaped piece 41 and supports the female lock buckle 3.

[0033] The T-shaped piece 41 is installed on the PVC-U profile 1, and the reinforcing piece is arranged on the T-shaped piece 41 to support the female lock buckle 3, which plays the role of a reinforcing rib, improves the strength of the PVC-U profile 1, and at the same time provides a reliable support point for the reinforcing piece, so that the reinforcing piece can better support the female lock buckle 3.

[0034] In specific embodiments, the reinforcing member includes a sleeve 42, a water-swelling sealing strip 43, and a rubber film 44. The sleeve 42 is fixedly sleeved on the PVC-U profile 1 and has an opening formed at a position facing the female lock buckle 3. The rubber film 44 is installed at the opening. The water-swelling sealing strip 43 is installed inside the sleeve 42.

[0035] It should be noted that the sleeve 42 of the reinforcing member is fixedly sleeved on the PVC-U profile 1. The opening formed at the position facing the female lock buckle 3 facilitates the water-swelling sealing strip 43 to exert a force in the direction of the female lock buckle 3 when swelling. The rubber film 44 is installed at the opening to play a certain protective role, preventing foreign matter from entering the inside of the sleeve 42. The water-swelling sealing strip 43 is installed inside the sleeve 42. When water contacts, the water-swelling sealing strip 43 swells to generate a supporting force on the female lock buckle 3, further enhancing the stability of the female lock buckle 3.

[0036] In specific embodiments, the limiting mechanism 5 includes a support strip 51, a T-shaped water-swelling sealing strip 52, and a piercing shaft 53. The inside of the female lock buckle 3 is provided with a placing groove 31 and a channel 32. The placing groove 31 is in communication with the channel 32. The support strip 51 is installed inside the placing groove 31 and connected with the piercing shaft 53 through the T-shaped water-swelling sealing strip 52. One end of the piercing shaft 53 slidably extends into the channel 32. The channel 32 forms a through hole at the outer wall of the female lock buckle 3, and the through hole faces the rubber film 44. A rubber film piece 54 is installed at the through hole.

[0037] The support strip 51 is installed in the placing groove 31 inside the female lock buckle 3. The T-shaped water-swelling sealing strip 52 connects the support strip 51 and the piercing shaft 53. When liquid seeps in to make the T-shaped water-swelling sealing strip 52 swell, the piercing shaft 53 is pushed to move. One end of the piercing shaft 53 slidably extends into the channel 32. The channel 32 forms a through hole at the outer wall of the female lock buckle 3 and faces the rubber film 44. The rubber film piece 54 installed at the through hole plays a certain protective role. The T-shaped water-swelling sealing strip 52 swells to push the piercing shaft 53 to pierce the water-swelling sealing strip 43, thereby limiting the horizontal positions of the male lock buckle 2 and the female lock buckle 3, achieving the effect of limiting the horizontal positions of the male lock buckle 2 and the female lock buckle 3. When leakage occurs at the pipe connection, the relative displacement of the two lock buckles can be timely limited, ensuring the stability of the pipe connection.

[0038] In specific embodiments, the number of piercing shafts 53 is multiple, and the piercing end of the piercing shaft 53 is V-shaped.

[0039] The plurality of pricking shafts 53 can increase the reliability of the limiting, and the pricking shafts 53 can be pricked into the auxiliary reinforcing mechanism 4 from multiple positions, so that the pricking efficiency and stability are improved, and the limiting effect is better.

[0040] In specific embodiments, the T-shaped sheet 41 is integrally formed with the PVC-U profile 1.

[0041] The T-shaped sheet 41 is integrally formed with the PVC-U profile 1, so that the connection strength between the T-shaped sheet 41 and the PVC-U profile 1 is higher, and there is no connection gap, so that the problems of loosening and falling caused by loose connection can be effectively avoided, and it is ensured that the auxiliary reinforcing mechanism 4 can always stably play a role.

[0042] The above is only a specific embodiment 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 changes or replacements within the technical range disclosed by the present application, which should be covered within 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 PVC-U trenchless helical wound profile, characterised in that , comprising: PVC-U profile (1), male lock buckle (2), female lock buckle (3), auxiliary reinforcing mechanism (4), limiting mechanism (5) and bushing (6); The male lock buckle (2) and the female lock buckle (3) are arranged on both sides of the PVC-U profile (1) respectively and are matched with each other; The auxiliary reinforcing mechanism (4) is arranged on the PVC-U profile (1) to support the female lock buckle (3); The limiting mechanism (5) and the bushing (6) are both arranged in the female lock buckle (3), and the male lock buckle (2) is sleeved with a water-swelling waterstop layer (7); When liquid in the pipeline seeps into the male lock buckle (2) and the female lock buckle (3), the water-swelling waterstop layer (7) expands under the action of the liquid, at this time, the bushing (6) will be broken to provide a space for the expanded water-swelling waterstop layer (7), and at the same time, the limiting mechanism (5) extends into the auxiliary reinforcing mechanism (4) to limit the horizontal position of the male lock buckle (2) and the female lock buckle (3).

2. A PVC-U trenchless spiral wound profile according to claim 1, characterised in that: The auxiliary reinforcing mechanism (4) comprises a T-shaped piece (41) and a reinforcing piece, the T-shaped piece (41) is mounted on the PVC-U profile (1), and the reinforcing piece is arranged on the T-shaped piece (41) and supports the female lock buckle (3).

3. A PVC-U trenchless spiral wound profile according to claim 2, characterised in that: The reinforcing piece comprises a sleeve (42), a water-swelling waterstop (43) and a rubber film (44), the sleeve (42) is fixedly sleeved on the PVC-U profile (1) and is provided with an opening at a position facing the female lock buckle (3), the rubber film (44) is mounted at the opening, and the water-swelling waterstop (43) is mounted in the sleeve (42).

4. A PVC-U trenchless spiral wound profile according to claim 3, characterised in that: The limiting mechanism (5) comprises a supporting strip (51), a T-shaped water-swelling waterstop (52) and a piercing shaft (53), the female lock buckle (3) is provided with a placing groove (31) and a channel (32) in the inside, the placing groove (31) is communicated with the channel (32), the supporting strip (51) is mounted in the placing groove (31) and is connected with the piercing shaft (53) through the T-shaped water-swelling waterstop (52), one end of the piercing shaft (53) slides into the channel (32), the channel (32) forms a through hole at the outer wall of the female lock buckle (3), the through hole faces the rubber film (44), and a rubber film piece (54) is mounted at the through hole.

5. A PVC-U trenchless spiral wound profile according to claim 4, characterised in that: The number of the piercing shafts (53) is multiple, and the piercing ends of the piercing shafts (53) are V-shaped.

6. A PVC-U trenchless spiral wound profile according to claim 5, characterised in that: The T-shaped piece (41) is integrally formed with the PVC-U profile (1).

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