Antibacterial and anti-cracking PE water supply pipe and preparation method thereof
Through the combination of multi-layer structural design and connectors, the problems of PE water supply pipes being prone to cracking and bacterial growth in harsh environments have been solved, achieving antibacterial, crack-resistant, and heat insulation effects, and improving the stability and antibacterial performance of PE water supply pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI BOTAI PLASTIC IND TECH CO LTD
- Filing Date
- 2022-06-24
- Publication Date
- 2026-07-14
AI Technical Summary
PE water supply pipes are prone to cracking in harsh environments and are susceptible to bacterial growth in both hot and cold environments.
It adopts a multi-layer structure design, including a PE outer sleeve, a first reinforcing skeleton, a PE inner sleeve, a nano antibacterial layer, and an expansion insulation cavity. It utilizes the expansion function of the PE corrugated belt and the movable connection of the connectors to provide expansion space and insulation effect, and inhibits bacterial growth through the nano antibacterial layer.
It effectively prevents water pipes from cracking, provides stability and heat insulation, inhibits bacterial growth, enhances antibacterial effects, and ensures stable operation of water pipes under temperature changes and environmental influences.
Smart Images
Figure CN115807878B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water supply pipe technology, specifically to an antibacterial and crack-resistant PE water supply pipe and its preparation method. Background Technology
[0002] PE material is widely used in water supply pipe manufacturing due to its high strength, corrosion resistance, and non-toxicity. Because it does not rust, it is an ideal replacement for ordinary iron water supply pipes. PE pipes possess high strength, high temperature resistance, corrosion resistance, non-toxicity, wear resistance, and a certain degree of flexibility. However, in harsh environments, especially in cold weather, water inside exposed pipes can freeze, expanding in volume and easily causing the pipes to burst, leading to cracking. In hot weather, the internal environment of water supply pipes is complex, making them prone to bacterial growth. Therefore, this invention proposes an antibacterial and crack-resistant PE water supply pipe and its preparation method to solve the above problems. Summary of the Invention
[0003] The purpose of this invention is to provide an antibacterial and crack-resistant PE water supply pipe and its preparation method, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an antibacterial and crack-resistant PE water supply pipe and its preparation method, comprising:
[0005] The water supply pipe includes a PE outer sleeve and a first reinforcing skeleton, and the PE outer sleeve covers the outside of the first reinforcing skeleton;
[0006] The water supply inner pipe includes a first PE inner sleeve, a second PE inner sleeve, and a PE corrugated strip, and there are two PE corrugated strips. The two PE corrugated strips are fixedly connected between the first PE inner sleeve and the second PE inner sleeve. The inner surfaces of the first PE inner sleeve and the second PE inner sleeve are provided with a nano antibacterial layer. The interior of the first PE inner sleeve and the second PE inner sleeve are provided with a second reinforcing skeleton.
[0007] A connector is provided between an external water supply pipe and an internal water supply pipe, and includes an installation sleeve and a movable guide that are movably connected to each other.
[0008] As a preferred technical solution of the present invention, the water supply outer pipe is sleeved outside the water supply inner pipe, and an expansion insulation cavity is provided between the water supply outer pipe and the water supply inner pipe.
[0009] As a preferred technical solution of the present invention, the mounting sleeve has a movable cavity inside, and a mounting groove is provided on one side of the movable cavity. The mounting sleeve is fixedly connected to the first reinforcing frame through a connecting seat.
[0010] As a preferred technical solution of the present invention, the movable guide includes a fixed block, and the movable guide is fixedly connected to the second reinforcing frame through the fixed block. A compression spring is connected to the end of the fixed block away from the second reinforcing frame, and a slider is connected to the end of the compression spring away from the fixed block. The slider is slidably installed in the mounting groove.
[0011] As a preferred technical solution of the present invention, the number of the second reinforcing skeletons is several, and the same first reinforcing rib is fixedly connected to several of the second reinforcing skeletons.
[0012] As a preferred technical solution of the present invention, the number of the first reinforcing skeletons is several, and the same second reinforcing rib is fixedly connected to the several first reinforcing skeletons.
[0013] This invention also provides a method for preparing antibacterial and crack-resistant PE water supply pipes, comprising the following steps:
[0014] S1: Add PE masterbatch to the extruder. The temperature of each section of the extruder screw is -℃. The PE masterbatch is fully mixed by high temperature heating and screw rotation and is extruded. Under the action of heating and pressure, the extruded material is plasticized into a molten state. Then, the molten material is injected into the PE corrugated belt mold, and also into the PE outer layer mold and PE inner layer mold, which contain the first reinforcing skeleton and the second reinforcing rib respectively.
[0015] S2: After cooling the mold in S1, PE corrugated tape, water supply outer pipe and PE inner sleeve containing first reinforcing rib and second reinforcing skeleton can be obtained respectively. After the pipe is cut to a fixed length, the PE inner sleeve is symmetrically cut into two parts from the middle to form the first PE inner sleeve and the second PE inner sleeve. A nano antibacterial layer is coated inside the first PE inner sleeve and the second PE inner sleeve. The PE corrugated tape is hot-melted and fixed between the first PE inner sleeve and the second PE inner sleeve to obtain the water supply inner pipe.
[0016] S3: Fix the mounting sleeve to the first reinforcing frame of the water supply outer pipe, then fix the movable guide to the second reinforcing frame of the water supply inner pipe, and then slide the slider of the movable guide into the mounting groove, so that the mounting sleeve and the movable guide are installed to form a connector, and install the water supply inner pipe inside the water supply outer pipe, so that an expansion insulation cavity is formed between the water supply inner pipe and the water supply outer pipe, thus producing an antibacterial and crack-resistant PE water supply pipe.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] 1. The present invention provides an antibacterial and crack-resistant PE water supply pipe. By setting an inner water supply pipe, a first reinforcing skeleton, a first PE inner sleeve, a second PE inner sleeve, and a PE corrugated belt, the inner water supply pipe space can have good expansion function. When the water in the inner water supply pipe freezes and its volume increases, the expansion and contraction of the PE corrugated belt can cause the internal space of the inner water supply pipe to expand, thereby preventing the inner water supply pipe from cracking due to excessive expansion pressure. Furthermore, the expansion and heat insulation cavity formed between the outer water supply pipe and the inner water supply pipe can provide good expansion space for the inner water supply pipe.
[0019] 2. The antibacterial and crack-resistant PE water supply pipe of the present invention utilizes a connector between the outer water supply pipe and the inner water supply pipe to effectively compress the first PE inner sleeve and the second PE inner sleeve on the inner water supply pipe, thereby improving the stability of the inner water supply pipe during use.
[0020] 3. The antibacterial and crack-resistant PE water supply pipe of the present invention, by setting an expansion insulation cavity, not only provides a good space for the expansion of the water supply inner pipe, but also has a good insulation effect, effectively reducing the influence of the external environment temperature on the internal temperature of the water supply inner pipe, thereby preventing the water inside the water supply inner pipe from being too hot or too cold, and thus allowing the water in the PE water supply pipe to work in a better temperature environment.
[0021] 4. The antibacterial and crack-resistant PE water supply pipe of the present invention can effectively inhibit the growth of bacteria inside the water supply pipe by setting a nano antibacterial layer, thereby improving the antibacterial effect of the PE water supply pipe.
[0022] Other features and advantages of the present invention will be described in detail in the following specific embodiments. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0024] Figure 2 This is a schematic diagram of the water supply inner pipe of the present invention;
[0025] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;
[0026] Figure 4 This is a schematic diagram of the structure of the water supply outer pipe of the present invention;
[0027] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;
[0028] Figure 6 This is a schematic diagram showing the connection between the first reinforcing rib and the second reinforcing frame of the present invention;
[0029] In the diagram: 1. Outer water supply pipe; 2. Inner water supply pipe; 3. Mounting sleeve; 4. Movable guide; 5. Connector; 6. Expansion insulation cavity; 101. Outer PE sleeve; 102. First reinforcing frame; 201. First inner PE sleeve; 202. Second inner PE sleeve; 203. PE corrugated strip; 204. Nano antibacterial layer; 205. Second reinforcing frame; 206. First reinforcing rib; 301. Movable cavity; 302. Mounting groove; 303. Connecting seat; 401. Fixing block; 402. Compression spring; 403. Slider. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," 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 invention 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 invention.
[0032] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0033] Please see Figure 1-5 This invention provides a technical solution: an antibacterial and crack-resistant PE water supply pipe, comprising:
[0034] Water supply pipe 1 includes a PE outer sleeve 101 and a first reinforcing frame 102, wherein the PE outer sleeve 101 covers the outside of the first reinforcing frame 102.
[0035] The water supply inner pipe 2 includes a first PE inner sleeve 201, a second PE inner sleeve 202, and a PE corrugated strip 203. There are two PE corrugated strips 203, and both PE corrugated strips 203 are fixedly connected between the first PE inner sleeve 201 and the second PE inner sleeve 202. The inner surfaces of the first PE inner sleeve 201 and the second PE inner sleeve 202 are provided with a nano antibacterial layer 204. The interior of the first PE inner sleeve 201 and the second PE inner sleeve 202 is provided with a second reinforcing skeleton 205.
[0036] The connector 5 is located between the external water supply pipe 1 and the internal water supply pipe 2, and includes an installation sleeve 3 and a movable guide 4 that are movably connected to each other.
[0037] In this invention, the outer water supply pipe 1 is sleeved outside the inner water supply pipe 2, and an expansion insulation cavity 6 is provided between the outer water supply pipe 1 and the inner water supply pipe 2. The ends of the outer water supply pipe 1 and the inner water supply pipe 2 are provided with sealing rings. The sealing rings can seal the ends of the expansion insulation cavity 6, thereby preventing impurities from the external environment from entering the interior of the expansion insulation cavity 6. The expansion insulation cavity 6 not only provides a good space for the expansion of the inner water supply pipe 2, but also has a good heat insulation effect, effectively reducing the impact of the temperature of the external environment on the internal temperature of the inner water supply pipe 2, thereby preventing the water temperature inside the inner water supply pipe 2 from being too hot or too cold, and thus allowing the water in the PE water supply pipe to work in a better temperature environment.
[0038] In this invention, the mounting sleeve 3 has an internal movable cavity 301, and one side of the movable cavity 301 has a mounting groove 302. The mounting sleeve 3 and the first reinforcing frame 102 are fixedly connected by a connecting seat 303.
[0039] In this invention, the movable guide 4 includes a fixing block 401, and the movable guide 4 is fixedly connected to the second reinforcing frame 205 through the fixing block 401. A compression spring 402 is connected to one end of the fixing block 401 away from the second reinforcing frame 205, and a slider 403 is connected to one end of the compression spring 402 away from the fixing block 401. The slider 403 is slidably installed in the mounting groove 302.
[0040] In this invention, there are several second reinforcing skeletons 205, and the same first reinforcing rib 206 is fixedly connected to each of the several second reinforcing skeletons 205. There are also several first reinforcing skeletons 102, and the same second reinforcing rib is fixedly connected to each of the several first reinforcing skeletons 102. By using the second reinforcing skeletons 205, the first reinforcing ribs 206, the first reinforcing skeletons 102, and the second reinforcing ribs, not only can the strength of the water supply outer pipe 1 and the water supply inner pipe 2 be enhanced, but the stability of the PE water supply pipe during use can also be improved. This avoids local expansion that could cause local bulging of the PE water supply pipe, ensuring that the PE water supply pipe is subjected to uniform stress throughout, and further improving its crack resistance.
[0041] This invention also provides a method for preparing antibacterial and crack-resistant PE water supply pipes, comprising the following steps:
[0042] S1: Add PE masterbatch to the extruder. The temperature of each section of the extruder screw is 40-200℃. The PE masterbatch is fully mixed by high temperature heating and screw rotation and is extruded. Under the action of heating and pressure, the extruded material is plasticized into a molten state. Then, the molten material is injected into the PE corrugated belt mold, and also into the PE outer layer mold and PE inner layer mold, which contain the first reinforcing skeleton 102 and the second reinforcing rib, the first reinforcing rib 206 and the second reinforcing skeleton 205 respectively.
[0043] S2: After cooling the mold in S1, PE corrugated strip 203, water supply outer pipe 1 and PE inner sleeve containing first reinforcing rib 206 and second reinforcing skeleton 205 can be obtained respectively. After the pipe is cut to a fixed length, the PE inner sleeve is symmetrically cut into two parts from the middle to form first PE inner sleeve 201 and second PE inner sleeve 202. A nano antibacterial layer 204 is coated inside the first PE inner sleeve 201 and the second PE inner sleeve 202. The PE corrugated strip 203 is hot-melted and fixed between the first PE inner sleeve 201 and the second PE inner sleeve 202 to obtain water supply inner pipe 2.
[0044] S3: Fix the mounting sleeve 3 to the first reinforcing frame 102 of the water supply outer pipe 1, then fix the movable guide 4 to the second reinforcing frame 205 of the water supply inner pipe 2, and then slide the slider 403 of the movable guide 4 into the mounting groove 302, so that the mounting sleeve 3 and the movable guide 4 are installed to form a connector 5, and the water supply inner pipe 2 is installed inside the water supply outer pipe 1, so that an expansion insulation cavity 6 is formed between the water supply inner pipe 2 and the water supply outer pipe 1, thus obtaining an antibacterial and crack-resistant PE water supply pipe.
[0045] Working Principle: During use, the inner water supply pipe 2 is connected to the external water supply and drainage system pipes. Sealing rings are installed at the ends of both the outer water supply pipe 1 and the inner water supply pipe 2. These sealing rings seal the ends of the expansion insulation chamber 6, preventing impurities from the external environment from entering. When the water in the inner water supply pipe 2 freezes and expands, the distance between the first PE inner sleeve 201 and the second PE inner sleeve 202 increases. This pulls on both ends of the two PE corrugated strips 203, causing them to deform and increase in height. This increases the circumference of the inner water supply pipe 2, increasing its internal space and preventing cracking caused by the increased volume of frozen water. This significantly improves the crack resistance of the PE water supply pipe. Furthermore, the expansion insulation chamber 6 not only provides insulation for the expansion of the inner water supply pipe 2... It provides ample space and excellent thermal insulation, effectively reducing the impact of external environmental temperature on the internal temperature of the water supply pipe 2, thus preventing the water inside the water supply pipe 2 from becoming too hot or too cold. This allows the water inside the PE water supply pipe to operate in a better temperature environment. The nano-antibacterial layer 204 effectively inhibits the growth of bacteria inside the water supply pipe 2, thereby improving the antibacterial effect of the PE water supply pipe. The second reinforcing skeleton 205, the first reinforcing rib 206, the first reinforcing skeleton 102, and the second reinforcing rib not only enhance the strength of the water supply outer pipe 1 and the water supply inner pipe 2, but also improve the stability of the PE water supply pipe during use, avoiding local expansion that could cause local bulging and other phenomena. This ensures that the PE water supply pipe is subjected to uniform stress throughout, further improving its crack resistance.
[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A type of antibacterial and crack-resistant PE water supply pipe, characterized in that, include: The water supply outer pipe (1) includes a PE outer sleeve (101) and a first reinforcing skeleton (102), and the PE outer sleeve (101) covers the outside of the first reinforcing skeleton (102); The water supply inner pipe (2) includes a first PE inner sleeve (201), a second PE inner sleeve (202), and a PE corrugated strip (203). There are two PE corrugated strips (203). The two PE corrugated strips (203) are fixedly connected between the first PE inner sleeve (201) and the second PE inner sleeve (202). The inner surfaces of the first PE inner sleeve (201) and the second PE inner sleeve (202) are provided with a nano antibacterial layer (204). The interior of the first PE inner sleeve (201) and the second PE inner sleeve (202) is provided with a second reinforcing skeleton (205). A connector (5) is provided between the water supply outer pipe (1) and the water supply inner pipe (2), and includes an installation sleeve (3) and a movable guide (4) that are movably connected to each other; the installation sleeve (3) has a movable cavity (301) inside, and an installation groove (302) is provided on one side of the movable cavity (301); the installation sleeve (3) is fixedly connected to the first reinforcing frame (102) through a connecting seat (303); the movable guide (4) includes a fixing block (401), and the movable guide (4) is fixedly connected to the second reinforcing frame (205) through the fixing block (401); a compression spring (402) is connected to one end of the fixing block (401) away from the second reinforcing frame (205); a slider (403) is connected to one end of the compression spring (402) away from the fixing block (401); and the slider (403) is slidably installed in the installation groove (302).
2. The antibacterial and crack-resistant PE water supply pipe according to claim 1, characterized in that, The water supply outer pipe (1) is sleeved on the outside of the water supply inner pipe (2), and an expansion insulation cavity (6) is provided between the water supply outer pipe (1) and the water supply inner pipe (2).
3. The antibacterial and crack-resistant PE water supply pipe according to claim 1, characterized in that, The number of the second reinforcing skeleton (205) is several, and the same first reinforcing rib (206) is fixedly connected to several of the second reinforcing skeletons (205).
4. The antibacterial and crack-resistant PE water supply pipe according to claim 1, characterized in that, The number of the first reinforcing skeleton (102) is several, and the same second reinforcing rib is fixedly connected to several of the first reinforcing skeletons (102).
5. A method for preparing an antibacterial and crack-resistant PE water supply pipe according to any one of claims 1-4, characterized in that, Includes the following steps: S1: Add PE masterbatch to the extruder. The temperature of each section of the extruder screw is 40-200℃. The PE masterbatch is fully mixed and extruded after being heated at high temperature and rotated by the screw. The extruded material is plasticized into a molten state under the action of heating and pressurization. Then, the molten material is injected into the PE corrugated belt mold, and also injected into the PE outer layer mold and the PE inner layer mold, which contain the first reinforcing skeleton (102) and the second reinforcing rib, the first reinforcing rib (206) and the second reinforcing skeleton (205) respectively. S2: After cooling the mold in S1, PE corrugated tape (203), water supply outer pipe (1) and PE inner sleeve containing first reinforcing rib (206) and second reinforcing skeleton (205) can be obtained respectively. After the pipe is cut to a fixed length, the PE inner sleeve is symmetrically cut into two parts from the middle to form first PE inner sleeve (201) and second PE inner sleeve (202). A nano antibacterial layer (204) is coated inside the first PE inner sleeve (201) and second PE inner sleeve (202). The PE corrugated tape (203) is hot-melted and fixed between the first PE inner sleeve (201) and second PE inner sleeve (202) to obtain water supply inner pipe (2). S3: Fix the mounting sleeve (3) to the first reinforcing frame (102) of the water supply outer pipe (1), then fix the movable guide (4) to the second reinforcing frame (205) of the water supply inner pipe (2), and then slide the slider (403) of the movable guide (4) into the mounting groove (302) so that the mounting sleeve (3) and the movable guide (4) are installed to form a connector (5), and install the water supply inner pipe (2) inside the water supply outer pipe (1), and form an expansion insulation cavity (6) between the water supply inner pipe (2) and the water supply outer pipe (1) to obtain an antibacterial and crack-resistant PE water supply pipe.