Winding pipe with reinforced inner support of outer sleeve

Abstract

The winding pipe comprises a winding pipe body, an outer sleeve and a connecting piece, the outer sleeve comprises an outer sleeve body, an inner core body and a plurality of supporting bodies, the outer sleeve body is connected to the outside of the winding pipe body in a hot melting winding mode, the inner core body is arranged in the outer sleeve body in the axial direction, and the supporting bodies are arranged in the outer sleeve body. The supporting bodies are fixedly connected between the inner core body and the outer sleeve body in the circumferential direction, the connecting piece comprises a connecting plate fixedly installed at the end of the outer sleeve, the connecting plate blocks the end of the outer sleeve, and the edge of the connecting plate is flush with the outer surface of the outer sleeve body so that the connecting plate can be connected with the connecting plate of the adjacent winding pipe in a hot melting mode. According to the winding pipe with the reinforced inner support of the outer sleeve, the ring stiffness is improved, and meanwhile consumables are taken into account.

Description

Technical Field

[0001] This utility model relates to the field of spiral wound tube technology, and in particular to a spiral wound tube with an inner support reinforcement in the outer tube. Background Technology

[0002] Spiral wound pipes are widely used in urban buried drainage pipelines, offering better ring stiffness compared to traditional pipes; existing spiral wound pipes such as Figure 6 As shown, it includes a spiral wound tube body 91 and an outer sleeve 92 that is hot-melt wound and connected to the spiral wound tube body. However, the existing outer sleeve is a hollow thin-walled tube with a circular center. Although this type of outer sleeve saves materials, it has low strength, resulting in limited ring stiffness enhancement effect of the spiral wound tube. In practical applications, it is still easy to be squeezed and deformed. On the other hand, some spiral wound tubes use solid outer sleeves. This type of spiral wound tube requires more materials and increases production costs. Utility Model Content

[0003] To address the aforementioned shortcomings of existing spiral wound tubes, this invention proposes a spiral wound tube with an inner support reinforcement in the outer sleeve, which improves ring stiffness while also reducing material consumption.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spiral wound tube with an inner support reinforcement includes a spiral wound tube body, an outer tube, and a connector. The outer tube includes an outer tube body, an inner core, and several supports. The outer tube body is thermally wound and connected to the outside of the spiral wound tube body. The inner core is axially disposed inside the outer tube body. Several supports are circumferentially fixedly connected between the inner core and the outer tube body. The connector includes a connecting plate fixedly installed at the end of the outer tube. The connecting plate seals the end of the outer tube, and its edge is flush with the outer surface of the outer tube body so as to thermally fuse with the connecting plate of the adjacent spiral wound tube.

[0006] With the above settings, the outer tube body is internally supported, which improves the stiffness of the wound tube ring. At the same time, it avoids the disadvantage of high material consumption caused by the solid design of the outer tube, thus taking into account the material cost. In addition, the design of the connector facilitates the connection of adjacent wound tubes, making the connection more secure.

[0007] Furthermore, the connecting plate is fixedly installed at the end of the outer sleeve with glue.

[0008] The above settings facilitate the installation of the connecting plate.

[0009] Furthermore, the connecting plate is made of the same material as the outer sleeve.

[0010] The above settings ensure that the thermal expansion of the connecting plate and the outer sleeve is similar, preventing the connecting plate and the outer sleeve from deforming to different degrees due to heat, which could lead to cracking at the connection.

[0011] Furthermore, the inner core is designed as a hollow structure with a connecting channel inside. The connector also includes a connecting screw. The connecting plate has a through-hole for mounting. The end of the mounting hole away from the connecting channel has a receiving groove. The stud of the connecting screw passes through the mounting hole and is threaded into the connecting channel to press the connecting plate against the end of the outer tube. The head of the connecting screw is located in the receiving groove.

[0012] With the above design, the inner core is hollow, which further reduces material consumption, and the connecting holes formed by the inner core facilitate the installation of connecting screws and connecting plates, further improving the stability of the connecting plates.

[0013] Furthermore, the support structure is configured as three parts, which are evenly distributed around the inner core.

[0014] Furthermore, the outer sheath is made of PP, PE, or ABS. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the winding tube used in an embodiment.

[0016] Figure 2 for Figure 1 Enlarged view of point A.

[0017] Figure 3 for Figure 2 A diagram showing the concealed connectors.

[0018] Figure 4 This is a schematic diagram showing the connection between two adjacent spiral tubes.

[0019] Figure 5 This is a schematic diagram showing two adjacent outer sleeves connected together by a connecting plate.

[0020] Figure 6 This is a schematic diagram of an existing spiral wound tube. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5 As shown, a spiral wound tube with an inner support reinforcement includes a spiral wound tube body 3, an outer tube 4, and a connector 5. The outer tube 4 includes an outer tube body 41, an inner core 42, and several supports 43. The outer tube body 41 is heat-fused and wound around the outside of the spiral wound tube body 3. The inner core 42 is axially disposed inside the outer tube body 41. Several supports 43 are circumferentially fixedly connected between the inner core 42 and the outer tube body 41. The connector 5 includes a connecting plate 51 fixedly installed at the end of the outer tube 4. The connecting plate 51 seals the end of the outer tube 4, and its edge is flush with the outer surface of the outer tube body 41 so as to heat-fused with the connecting plate 51 of the adjacent spiral wound tube.

[0023] With the above settings, the outer tube body 41 is internally supported, which improves the stiffness of the wound tube ring. At the same time, it avoids the disadvantage of high material consumption caused by the solid design of the outer tube 4, thus taking into account the material cost. In addition, the design of the connector 5 facilitates the connection of adjacent wound tubes, making the connection more secure.

[0024] The spiral wound tube body 3 of this application is a cylindrical tube structure extruded from plastic material, and the outer sleeve 4 is also extruded from plastic material. A hot-melt spiral connection is made to the outside of the spiral wound tube body 3 to increase the ring stiffness of the spiral wound tube and prevent it from being deformed by compression. The inner side of the outer sleeve body 41 is supported by a support body 43. Specifically, the support body 43 radially supports the outer sleeve body 41 to improve the stiffness of the outer sleeve 4. Furthermore, because the outer sleeve 4 of this application has an internal cavity, it saves more material compared to existing solid outer sleeves 4. When two adjacent spiral wound tubes are joined, the spiral wound tube body 3 is fused together with the spiral wound tube body 3, and the connecting plate 51 at the end of one spiral wound tube is fused to the connecting plate 51 at the end of the other spiral wound tube. The outer sleeves 4 of the two spiral wound tubes are connected together through the connecting plates 51. Figure 4 and Figure 5 As shown. The connecting plate 51 of this application is circular, with an outer diameter consistent with that of the outer sleeve 4. The connecting plate 51 covers the end face of the outer sleeve 4, ensuring full contact and fixation between the end face of the outer sleeve 4 and the connecting plate 51, and ensuring sufficient connection area between the outer sleeve 4 and the connecting plate 51. After the connecting plates 51 are fused together, the fusion area is also large enough, making it difficult for two adjacent outer sleeves 4 to break after being connected together. However, if two outer sleeves 4 are directly connected without passing through the connecting plate 51, and the cross-sections of the two outer sleeves 4 do not completely overlap, the connection strength will be severely reduced, and they will be easy to break.

[0025] As one implementation method, the connecting plate 51 is fixedly installed at the end of the outer sleeve 4 by adhesive 7.

[0026] The above settings facilitate the installation of the connecting plate 51.

[0027] As one implementation method, the material of the connecting plate 51 is the same as that of the outer tube 4.

[0028] The above settings ensure that the thermal expansion of the connecting plate 51 and the outer sleeve 4 is close, preventing the connecting plate 51 and the outer sleeve from deforming to different degrees due to heat, which could lead to cracking at the connection.

[0029] As one implementation, the inner core 42 is set as a hollow structure, with a connecting channel 8 formed inside. The connector 5 also includes a connecting screw 52. The connecting plate 51 is provided with a mounting hole 53. The end of the mounting hole away from the connecting channel 8 is provided with a receiving groove. The stud of the connecting screw 52 passes through the mounting hole and is threadedly connected to the connecting channel 8 to press the connecting plate 51 against the end of the outer tube 4. The head of the connecting screw 52 is located in the receiving groove 54.

[0030] With the above configuration, the inner core 42 is hollow, which further reduces material consumption, and the connecting hole 8 formed by the inner core 42 facilitates the installation of the connecting screw 52 and the connecting plate 51, further improving the firmness of the connecting plate 51.

[0031] The inner core 42 of this application is a circular tube structure coaxially arranged with the outer tube body 41. The inner core 42 supports the outer tube body 41 through the support body 43. The connecting plate 51 is fixed to the end of the outer tube 4 with glue 7, and then the connecting screw 52 is screwed into the connecting channel 8 through the mounting hole. The head of the connecting screw 52 presses the connecting plate 51 tightly and enters the receiving groove. Figure 5 As shown, two adjacent connecting plates 51 are fused together, and the head of the connecting screw 52 will not contact the head of the other connecting screw 52.

[0032] As one implementation method, the support body 43 is set to three, and they are evenly distributed around the inner core body 42.

[0033] As one implementation method, the outer tube 4 is made of PP, PE or ABS.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A spiral wound tube with an inner support reinforcement in the outer sleeve, characterized in that, The device includes a spiral wound tube body, an outer sleeve, and connectors. The outer sleeve includes an outer sleeve body, an inner core, and several supports. The outer sleeve body is thermally wound and connected to the spiral wound tube body. The inner core is axially disposed within the outer sleeve body. Several supports are circumferentially fixedly connected between the inner core and the outer sleeve body. The connectors include a connecting plate fixedly installed at the end of the outer sleeve. The connecting plate seals the end of the outer sleeve, and its edge is flush with the outer surface of the outer sleeve body so as to thermally fuse with the connecting plate of an adjacent spiral wound tube.

2. The spiral wound tube with inner support reinforcement in the outer sleeve according to claim 1, characterized in that, The connecting plate is fixedly installed at the end of the outer sleeve with glue.

3. The spiral wound tube with inner support reinforcement in the outer sleeve according to claim 2, characterized in that, The connecting plate is made of the same material as the outer sleeve.

4. The spiral wound tube with inner support reinforcement in the outer sleeve according to claim 1, characterized in that, The inner core is hollow with a connecting channel inside. The connector also includes a connecting screw. The connecting plate has a through mounting hole. The end of the mounting hole away from the connecting channel has a receiving groove. The stud of the connecting screw passes through the mounting hole and is threaded into the connecting channel to press the connecting plate against the end of the outer tube. The head of the connecting screw is located in the receiving groove.

5. The spiral wound tube with inner support reinforcement in the outer sleeve according to claim 1, characterized in that, The support body is configured as three, and is evenly distributed around the inner core.

6. The spiral wound tube with inner support reinforcement in the outer sleeve according to claim 1, characterized in that, The outer sheath is made of PP, PE or ABS.

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