Flame-retardant PVC (polyvinyl chloride) pipe structure capable of fully insulating heat
By adding flame-retardant and heat-insulating materials and a multi-layered protective structure to the outside of PVC pipes, the problem of PVC pipes being easily damaged at high temperatures is solved, resulting in a longer service life and greater safety.
Patent Information
- Application Number
- CN202520149574.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing PVC pipes lack effective heat insulation and flame retardant structures, making them easily damaged when exposed to high temperatures, thus affecting their service life.
Flame-retardant and heat-insulating material is added to the outside of the PVC pipe and protected by the first and second outer pipes. The design combines a waterproof layer, a flame-retardant layer, a heat-insulating layer and a wear-resistant layer. Flame-retardant cotton and fiberglass cloth are used, and the outside is fixed by locking caps and threaded connections.
It improves the flame retardant and heat insulation properties of PVC pipes, prevents them from burning at high temperatures, extends their service life, and maintains the normal transport function of the pipeline.
Smart Images
Figure CN223595282U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to PVC pipe technical field especially is related to a kind of flame-retardant PVC pipe structure of sufficient heat insulation. BACKGROUND
[0002] PVC is mainly composed of polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, the uppermost layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the lowermost layer is a back-coating adhesive. PVC pipes are made of polyvinyl chloride resin, stabilizers, lubricants, and other materials, which are extruded by hot pressing. PVC pipes are the first plastic pipes to be developed and applied. In the construction industry, PVC pipes are commonly used in water supply systems, drainage systems, and agricultural irrigation systems. Due to their excellent corrosion resistance and pressure resistance, PVC pipes are suitable for long-term operation and will not be corroded by chemicals in water, allowing for quick and effective wastewater discharge.
[0003] The existing technical solutions have the following defects: the existing PVC pipe lacks effective heat insulation and flame-retardant structure, and the pipe can be easily damaged after being burned by high temperature, affecting use. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a kind of flame-retardant PVC pipe structure of sufficient heat insulation.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:
[0006] A kind of flame-retardant PVC pipe structure of sufficient heat insulation, including PVC pipe main body, the outer side of the PVC pipe main body is equipped with first outer pipe, the outer side of the first outer pipe is equipped with second outer pipe, the outer side of the second outer pipe is provided with external thread, the outer side of the PVC pipe main body is provided with lock cap, the inside of the lock cap is equipped with clamping groove, the inner side of the clamping groove is provided with internal thread.
[0007] By adopting the above technical scheme, the flame-retardant and heat-insulating material is added to the outer side of the PVC pipe, and the second outer pipe is added to the outer side of the flame-retardant and heat-insulating material, which can protect the flame-retardant and heat-insulating material. The flame-retardant and heat-insulating material is wrapped around the outer side of the PVC pipe, and then protected by the second outer pipe, which improves the service life of the PVC pipe.
[0008] Further, the first outer pipe includes a waterproof layer, a first flame-retardant layer, a heat-insulating layer, a second flame-retardant layer, and a wear-resistant layer. The waterproof layer is connected to the outer side of the heat-insulating layer. The heat-insulating layer is connected to the outer side of the second flame-retardant layer. The second flame-retardant layer is connected to the outer side of the wear-resistant layer.
[0009] By adopting the technical scheme, the waterproof layer adopts a waterproof sealing belt, the first fire-retardant layer and the second fire-retardant layer are both made of the same fire-retardant material, are both fire-retardant cotton, a heat insulation layer is made of glass fiber cloth, and an outer wear-resistant layer is made of rubber material, so that the materials are stacked together and wrapped outside the PVC pipe, the effect of fire retardation and heat insulation is achieved, the PVC pipe is prevented from being burned by external large fire, and the normal use of the pipeline is not affected.
[0010] Further, the outer thread and the locking cap are symmetrically arranged two about the vertical center line of the second outer pipe, and the outer thread and the inner thread are threadedly connected.
[0011] By adopting the technical scheme, the locking cap can be installed outside the pipeline through the connection and cooperation of the inner thread and the outer thread.
[0012] Further, the PVC pipe body, the second outer pipe and the first outer pipe are clamped inside the clamping groove and are mutually adapted with the clamping groove.
[0013] By adopting the technical scheme, the three parts can be centrally installed and fixed by installing the PVC pipe body, the second outer pipe and the first outer pipe inside the locking cap, and the stability of the structure is improved.
[0014] Further, the first outer pipe is wrapped outside the PVC pipe body, and the second outer pipe is sleeved outside the first outer pipe.
[0015] By adopting the technical scheme, installation and use are facilitated.
[0016] In summary, the beneficial technical effects of the utility model are as follows:
[0017] The first outer pipe, the second outer pipe and the locking cap are adopted, the fire-retardant and heat-insulating structure is added outside the PVC pipe, the protective pipeline is added outside the fire-retardant and heat-insulating structure, the internal pipeline is protected, the waterproof layer prevents the pipeline from being broken and seeping, the two fire-retardant layers improve the fire-retardant effect, the heat insulation layer has the effect of heat preservation, the conveying capacity of the medium in the pipeline is not affected, the service life of the PVC pipe is greatly improved, and the effect of convenient use is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a whole structure schematic view of the utility model;
[0019] Figure 2 It is a split structure schematic view of the utility model;
[0020] Figure 3 It is a locking cap three-dimensional structure schematic view of the utility model;
[0021] Figure 4The utility model discloses a sectional structure schematic diagram.
[0022] In the drawing, 1, PVC pipe main body, 2, second outer tube, 3, first outer tube, 4, outer thread, 5, locking cover, 6, clamping groove, 7, internal thread, 31, waterproof layer, 32, first fire -retardant layer, 33, heat -insulating layer, 34, second fire -retardant layer, 35, wear -resisting layer. DETAILED DESCRIPTION
[0023] The utility model discloses make further detailed instructions in combination with the drawings.
[0024] Reference Figures 1-4 A kind of fire -retardant PVC pipe structure of sufficient heat insulation, including PVC pipe main body 1, first outer tube 3 is installed on the outside of PVC pipe main body 1, second outer tube 2 is installed on the outside of first outer tube 3, outer thread 4 is arranged on the outside of second outer tube 2, locking cover 5 is arranged on the outside of PVC pipe main body 1, clamping groove 6 is set in the inside of locking cover 5, internal thread 7 is arranged on the inside of clamping groove 6, first outer tube 3 inside includes waterproof layer 31, first fire -retardant layer 32, heat -insulating layer 33, second fire -retardant layer 34 and wear -resisting layer 35, waterproof layer 31 outside is pasted with heat -insulating layer 33, heat -insulating layer 33 outside is pasted with second fire -retardant layer 34, second fire -retardant layer 34 outside is pasted with wear -resisting layer 35, the material of fire -retardant heat insulation is increased on the outside of PVC pipe, and second outer tube is increased on the outside of fire -retardant heat insulation material, can protect fire -retardant heat insulation material, and fire -retardant heat insulation material is wrapped in the outside of PVC pipe, and then is protected by second outer tube, improve the service life of PVC pipe, waterproof layer uses waterproof sealing band, first fire -retardant layer and second fire -retardant layer are all using same fire -retardant material, and are all fire -retardant cotton, and meanwhile heat -insulating layer uses glass fiber cloth, wear -resisting layer on the outside uses rubber material, and these materials are wrapped together in the outside of PVC pipe, and the effect of fire -retardant and heat insulation is achieved, prevent the fire of outside from being big and burning PVC pipe, will not affect the normal use of pipeline.
[0025] As Figures 1-4 Shown, outer thread 4 and locking cover 5 are respectively about the vertical center line of second outer tube 2 Symmetrically set two, outer thread 4 and internal thread 7 are threadedly connected, PVC pipe main body 1, second outer tube 2 and first outer tube 3 are all clamped in the inside of clamping groove 6, and with clamping groove 6 mutually adapt, first outer tube 3 is wrapped in the outside of PVC pipe main body 1, and second outer tube 2 is sleeved in the outside of first outer tube 3.
[0026] The implementation principle of the embodiment is that the PVC pipe body 1 is wrapped with the first outer pipe 3, the second outer pipe 2 is sleeved outside the first outer pipe 3, the locking cover 5 is clamped with the two ends of the pipe, the PVC pipe body 1, the second outer pipe 2 and the first outer pipe 3 are clamped in the clamping groove 6 inside the locking cover 5, the two ends of the pipe are locked and fixed through the threaded connection of the outer thread 4 and the inner thread 7, the first outer pipe 3 inside has the flame-retardant and heat-insulating material, the PVC pipe can be protected, the pipe is prevented from being burned due to the large external fire, the normal use of the pipe is ensured, and the service life of the pipe is greatly prolonged.
[0027] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A fire-retardant PVC pipe construction substantially thermally insulated comprising a PVC pipe body (1) characterized in that: The outer side of the PVC pipe body (1) is provided with a first outer pipe (3), the outer side of the first outer pipe (3) is provided with a second outer pipe (2), the outer side of the second outer pipe (2) is provided with an external thread (4), the outer side of the PVC pipe body (1) is provided with a locking cover (5), the inside of the locking cover (5) is provided with a clamping groove (6), and the inner side of the clamping groove (6) is provided with an internal thread (7).
2. The fully insulated, fire rated PVC pipe construction of claim 1, wherein: The first outer pipe (3) comprises a waterproof layer (31), a first flame-retardant layer (32), a heat insulation layer (33), a second flame-retardant layer (34) and a wear-resistant layer (35) from inside to outside, the outer side of the waterproof layer (31) is connected with the heat insulation layer (33), the outer side of the heat insulation layer (33) is connected with the second flame-retardant layer (34), and the outer side of the second flame-retardant layer (34) is connected with the wear-resistant layer (35).
3. The fully insulated, fire rated PVC pipe construction of claim 1, wherein: The external thread (4) and the locking cover (5) are respectively provided with two vertical center lines of the second outer pipe (2), and the external thread (4) and the internal thread (7) are threadedly connected.
4. The fully insulated, fire rated PVC pipe construction of claim 1, wherein: The PVC pipe body (1), the second outer pipe (2) and the first outer pipe (3) are clamped in the inside of the clamping groove (6) and matched with the clamping groove (6).
5. The fully insulated, fire rated PVC pipe construction of claim 1, wherein: The first outer pipe (3) is wrapped outside the PVC pipe body (1), and the second outer pipe (2) is sleeved outside the first outer pipe (3).