A one-piece lengthened composite elbow structure

Abstract

The utility model discloses an integral lengthened composite elbow structure, including composite elbow section and lengthened composite straight pipe section, and composite elbow section and composite straight pipe section all are equipped with nodular cast iron outer pipe body and the silica gel pipe body of nodular cast iron outer pipe body inner wall close, the nodular cast iron outer pipe body of composite elbow section and the nodular cast iron outer pipe body of composite straight pipe section integrated molding, and the silica gel pipe body of composite elbow section and the silica gel pipe body of composite straight pipe section integrated molding, the silica gel pipe body outer end of composite straight pipe section is equipped with the outer wrapping of turning to nodular cast iron outer pipe body outer wall, and the outer wrapping and silica gel pipe body integrated molding. The utility model discloses a lengthened composite straight pipe section, effectively solved the elbow later stage joint gap problem, improved the quality and stability of product, reduced the assembly joint process of outer pipe body, through being equipped with the outer wrapping, can play the anticorrosive effect to the outer end surface of composite straight pipe section.

Description

Technical Field

[0001] This utility model relates to a short stainless steel elbow, and more particularly to an integrated extended composite bend structure. Background Technology

[0002] Existing integral injection molded stainless steel elbows use short stainless steel elbow pipes. These short stainless steel elbow pipes only have the elbow part, with a bending radius of less than 1D, making molding difficult and the production process cumbersome. Moreover, because they only have the elbow part, gaps are prone to appear at the joint during the later splicing process. This not only affects the sealing of the splice between the pipe bodies, but also increases the difficulty of splicing due to the difficulty in positioning. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an integrated extended composite bend structure that is reasonably designed, easy and quick to assemble, and has good sealing performance, in order to overcome the shortcomings of the existing technology.

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

[0005] An integrated extended composite pipe structure is characterized by comprising a composite pipe section and an extended composite straight pipe section. Both the composite pipe section and the composite straight pipe section are provided with a ductile iron outer pipe body, a silicone pipe body, and a stainless steel pipe body arranged sequentially from the outside to the inside. The ductile iron outer pipe body of the composite pipe section and the ductile iron outer pipe body of the composite straight pipe section are integrally formed. The silicone pipe body of the composite pipe section and the silicone pipe body of the composite straight pipe section are integrally formed. The stainless steel pipe body of the composite pipe section and the stainless steel pipe body of the composite straight pipe section are integrally formed. The outer end of the silicone pipe body of the composite straight pipe section is provided with an outer rim that flares outward to the outer wall of the ductile iron outer pipe body, and the outer rim is integrally formed with the silicone pipe body.

[0006] The technical problem to be solved by this utility model can also be achieved by the following technical solution: a groove for easy installation of clamps is provided on the outer wall of the ductile iron outer pipe of the composite straight pipe section. At least two grooves are provided and arranged side by side along the axis of the composite straight pipe section.

[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the outer flange of the outer edge extends to the groove on the outer wall of the ductile iron outer tube, and the thickness of the outer edge is 1mm-3mm, usually 1.5mm.

[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the length of the ductile iron outer tube of the composite straight pipe section is 20mm-40mm, and the length of the silicone tube is 30mm-60mm.

[0009] Compared with the prior art, this utility model effectively solves the problem of splicing gaps in the later stage of the bend by adding an extended composite straight pipe section to the composite bend, which improves the quality and stability of the product, reduces the assembly and splicing process of the outer pipe body, and can also produce the bend structure described in this application using existing standard bend molds, which has low manufacturing cost and is easy to form; by setting an outer edge, the outer end face of the composite straight pipe section can play a role in corrosion protection. Attached Figure Description

[0010] Figure 1 This is a structural diagram of the integrated extended composite bend structure described in this utility model.

[0011] In the diagram: 1-Composite straight pipe section, 2-Composite bent pipe section, 3-Card groove, 4-Ductile cast iron outer pipe body, 5-Silicone pipe body, 6-Stainless steel pipe body. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0014] Reference Figure 1 An integrated extended composite pipe structure includes a composite pipe section 2 and an extended composite straight pipe section 1. Both the composite pipe section 2 and the composite straight pipe section 1 are provided with a ductile iron outer pipe body 4, a silicone pipe body 5, and a stainless steel pipe body 6 arranged sequentially from the outside to the inside. The ductile iron outer pipe body 4 of the composite pipe section 2 and the ductile iron outer pipe body 4 of the composite straight pipe section 1 are integrally formed. The silicone pipe body 5 of the composite pipe section 2 and the silicone pipe body 5 of the composite straight pipe section 1 are integrally formed. The stainless steel pipe body 6 of the composite pipe section 2 and the stainless steel pipe body 6 of the composite straight pipe section 1 are integrally formed. The outer end of the silicone pipe body 5 of the composite straight pipe section 1 is provided with an outer edge 7 that flares out to the outer wall of the ductile iron outer pipe body. The outer edge 7 is integrally formed with the silicone pipe body and plays a role in preventing corrosion on the end face of the ductile iron outer pipe body. Water only comes into contact with the silicone and stainless steel and does not come into contact with the ductile iron outer pipe.

[0015] The outer wall of the ductile iron outer pipe body 4 of the composite straight pipe section 1 is provided with a groove 3 for easy installation of clamps. There are at least two grooves 3, which are arranged side by side along the axis of the composite straight pipe section 1 and are suitable for clamping with wide clamps.

[0016] The outer flange 7 extends to the groove on the outer wall of the ductile iron outer tube. The thickness of the outer flange is 1mm-3mm, usually 1.5mm, which improves the corrosion resistance of the end face of the ductile iron outer tube and better protects the ductile iron outer tube.

[0017] The ductile iron outer tube of the composite straight pipe section 1 has a length of 20mm-40mm, and the silicone tube has a length of 30mm-60mm. By reasonably controlling the length of the composite straight pipe section, the overall performance of the product is guaranteed, assembly steps are reduced, and assembly efficiency is improved.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated extended composite bend structure, characterized in that, The system includes a composite bend section and an extended composite straight section. Both the composite bend section and the composite straight section are provided with a ductile iron outer tube body, a silicone tube body, and a stainless steel tube body arranged sequentially from the outside to the inside. The ductile iron outer tube body of the composite bend section and the ductile iron outer tube body of the composite straight section are integrally formed. The silicone tube body of the composite bend section and the silicone tube body of the composite straight section are integrally formed. The stainless steel tube body of the composite bend section and the stainless steel tube body of the composite straight section are integrally formed. The outer end of the silicone tube body of the composite straight section is provided with an outer rim that flares out to the outer wall of the ductile iron outer tube body, and the outer rim is integrally formed with the silicone tube body.

2. The integrated extended composite bend structure according to claim 1, characterized in that, The outer wall of the ductile iron outer pipe of the composite straight pipe section is provided with a groove for easy installation of clamps.

3. The integrated extended composite bend structure according to claim 2, characterized in that, The card slots are provided in at least two places and are arranged side by side along the axis of the composite straight pipe section.

4. The integrated extended composite bend structure according to claim 2, characterized in that, The outer flange of the outer edge extends all the way to the groove on the outer wall of the ductile iron outer tube.

5. The integrated extended composite bend structure according to claim 1, characterized in that, The thickness of the outer edge is 1mm-3mm.

6. The integrated extended composite bend structure according to claim 1, characterized in that, The composite straight pipe section has a ductile iron outer tube length of 20mm-40mm and a silicone tube length of 30mm-60mm.

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