Multifunctional PE pipe fitting with good heat insulation and waterproof effects

Abstract

The utility model discloses a multifunctional PE pipe fitting with good heat insulation and waterproof effects, and belongs to the technical field of PE pipe fittings. Comprising a PE composite pipe, the PE composite pipe adopts a heat insulation multi-layer design, the inner layer is made of a PE material, the interlayer is a heat insulation layer, the outer side adopts a polyethylene protection layer, and the PE composite pipe comprises a first PE composite pipe A and a second PE composite pipe B. According to the invention, a plurality of pipe fittings with the structures of the first PE composite pipe A and the second PE composite pipe B can be assembled end to end by arranging a fastening assembly; the first PE composite pipe A and the second PE composite pipe B are connected through the fastening assembly, then the fastening assembly is used for reinforcing the connecting position, the clamping hoop and the protective pad are arranged at the connecting position for tightening, on one hand, relative sliding, displacement and loosening of the first PE composite pipe A and the second PE composite pipe B are prevented, on the other hand, the protective pad has good waterproof and sealing effects, leakage during liquid conveying is avoided, and the fastening nut rotates to tighten the limiting rod. The hoop is fastened to the pipeline joint, and the fastening assembly is easy to mount and dismount.

Description

Technical Field

[0001] This application relates to the field of PE pipe fittings technology, and more specifically, to a multifunctional PE pipe fitting with good heat insulation and waterproofing effects. Background Technology

[0002] Due to its safety, hygiene, and long service life, PE pipe is widely used in liquid transportation, line protection, and other fields. PE pipe has a wide range of applications, but its installation and operation are relatively inconvenient, and its length is generally quite long. In natural gas pipeline networks, metal pipe valves are gradually being replaced by PE pipe valves (i.e., polyethylene pipe valves). PE pipe valves have advantages such as light weight, corrosion resistance, long service life, and ease of installation and maintenance.

[0003] In related technologies, in order to solve the problem that when some parts of a PE pipe fitting are worn and need to be replaced, the entire PE pipe fitting needs to be replaced, which is costly, the existing technology patent with publication number CN218236580U provides a multi-functional PE pipe fitting with good heat insulation and waterproof effect, including a first PE pipe, a second PE pipe, a first collar and a second collar. The upper and lower ends of the right side of the first PE pipe are provided with first slots of the same size. The upper and lower ends of the left side of the second PE pipe are fixedly connected with first blocks. Three sets of first bolts are threaded to one side of each first slot.

[0004] Although the existing technical solutions mentioned above can complete the splicing of multiple sets of PE pipe fittings by setting up a split design, which is convenient for users to carry out centralized handling of multiple sets of PE pipe fittings, the existing split design of PE pipe fittings is assembled with bolts. The bolts have poor clamping stability and are easy to loosen, resulting in certain gaps during the pipe body docking process. When transporting liquid media, they are easy to overflow from the radial strip-shaped clamping surfaces on both sides, resulting in poor overall sealing effect of PE pipe fittings.

[0005] In view of this, we propose a multifunctional PE pipe fitting with good heat insulation and waterproof performance. Utility Model Content

[0006] The purpose of this application is to provide a multifunctional PE pipe fitting with good heat insulation and waterproof performance. It solves the technical problem of the existing PE pipe fitting's split design, which is assembled by bolts. The bolts are unstable and easy to loosen, resulting in gaps during the pipe body connection process. When liquid media are transported, they are prone to overflow from the radial strip-shaped connection surfaces on both sides, resulting in poor overall sealing and waterproof performance of the PE pipe fitting. The application achieves the technical effect of ensuring the overall sealing performance of the PE pipe fitting, and allowing for partial replacement when some parts of the PE pipe fitting are worn, which facilitates the cleaning of the inside of the PE pipe fitting.

[0007] This application provides a multifunctional PE pipe fitting with good heat insulation and waterproof effect, including a PE composite pipe. The PE composite pipe adopts a multi-layer heat insulation design, with an inner layer of PE material, an interlayer of heat insulation layer, and an outer layer of polyethylene protective layer. The PE composite pipe includes a first PE composite pipe A and a second PE composite pipe B. One end of the first PE composite pipe A and the second PE composite pipe B are connected by heat fusion with a threaded interface, and the other end of the first PE composite pipe A and the second PE composite pipe B are provided with an internal threaded ring by heat fusion. The threaded interface and the internal threaded ring can be threadedly engaged. A fastening component is provided on the outside of the connection between the first PE composite pipe A and the second PE composite pipe B. The fastening component includes a clamp. The clamp has a groove and a limiting groove on both sides of its open end. A limiting rod is provided in the groove through a rotating shaft. A fastening nut is threaded on the outside of one end of the limiting rod that is engaged with the limiting groove.

[0008] Preferably, the inner wall of the clamp is fitted with a protective pad, and the protective pad is made of a soft material, and the outer end of the limiting rod extending into the saw teeth is provided with a thread.

[0009] Preferably, a rubber gasket is slidably sleeved on the outer side of the limiting rod, and the rubber gasket is located between the fastening nut and the limiting groove. An anti-loosening component is sleeved on the outer side of the limiting rod, wherein the anti-loosening component is located between the rubber gasket and the fastening nut.

[0010] Preferably, the anti-loosening component includes a lower washer and an upper washer. The lower washer and the upper washer are both circumferentially arranged with uniform oblique teeth on their respective sides, wherein two sets of oblique teeth are meshed with each other, and the inner oblique surface angle of the oblique teeth is 6°. The lower washer and the upper washer are provided with serrations on their respective sides.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0012] (1) This application has a fastening component, which allows multiple pipe fittings with the structure of the first PE composite pipe A and the second PE composite pipe B to be assembled end to end. The fastening component is then used to reinforce the connection. The connection is tightened with a clamp and a protective pad. On the one hand, it prevents the first PE composite pipe A and the second PE composite pipe B from sliding relative to each other, causing displacement and loosening. On the other hand, the protective pad has a good waterproof and sealing effect, preventing leakage when transporting liquid. The fastening nut is rotated to tighten the limiting rod, so that the clamp is fastened at the pipe connection. The installation and disassembly of the fastening component is simple.

[0013] (2) By providing an anti-loosening component, when the fastening nut attempts to loosen due to vibration and axial displacement, the inclined teeth of the lower and upper washers will be horizontally spread due to relative sliding, generating a lateral force, which forces the washers to tightly clamp the fastening nut, forming a self-locking wedge force, counteracting the loosening tendency, and increasing the stability of the fastening component installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall assembled structure of this utility model;

[0015] Figure 2 This is an exploded view of the PE pipe of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the fastening component of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the anti-loosening component of this utility model;

[0018] Explanation of the labels in the diagram:

[0019] 1. PE composite pipe; A. First PE composite pipe; B. Second PE composite pipe; 111. Threaded interface; 112. Internal threaded ring;

[0020] 2. Fastening components; 210. Groove; 211. Limiting rod; 212. Limiting slot; 213. Fastening nut; 214. Clamp; 215. Protective pad; 216. Rubber gasket;

[0021] 3. Anti-loosening component; 310. Lower shim; 311. Upper shim; 312. Angled teeth; 313. Sawtooth. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] Please see Figure 1-4 The present invention provides an embodiment of a multifunctional PE pipe fitting with good heat insulation and waterproof effect, comprising a PE composite pipe 1, the PE composite pipe 1 comprising a first PE composite pipe A and a second PE composite pipe B, one end of the first PE composite pipe A and the second PE composite pipe B being connected by heat fusion with a threaded interface 111, and the other end of the first PE composite pipe A and the second PE composite pipe B being provided with an internal threaded ring 112 by heat fusion, the threaded interface 111 and the internal threaded ring 112 being threadedly engaged, and a fastening component 2 being provided on the outside of the connection between the first PE composite pipe A and the second PE composite pipe B.

[0025] PE composite pipe 1 adopts a multi-layer heat insulation design, with an inner layer of PE material, an interlayer of heat insulation layer, and an outer layer of polyethylene protective layer, which has a good heat insulation effect and can be used in a variety of scenarios.

[0026] The fastening assembly 2 includes a clamp 214. The clamp 214 has a groove 210 and a limiting groove 212 on both sides of its open end. A limiting rod 211 is provided inside the groove 210 through a rotating shaft. A fastening nut 213 is threaded on the outer side of one end of the limiting rod 211 that is inserted into the limiting groove 212. A protective pad 215 is tightly fitted on the inner wall of the clamp 214. The protective pad 215 is made of soft material. A threaded line is provided on one end of the limiting rod 211 that extends into the serration 313. A rubber gasket 216 is slidably sleeved on the outer side of the limiting rod 211. The rubber gasket 216 is located between the fastening nut 213 and the limiting groove 212. Multiple pipe fittings with structures of the first PE composite pipe A and the second PE composite pipe B can be assembled end to end, and then reinforced at the connection by fastening component 2. The connection is equipped with clamp 214 and protective pad 215 to tighten, on the one hand to prevent the first PE composite pipe A and the second PE composite pipe B from sliding relative to each other, causing displacement and loosening, and on the other hand, the protective pad 215 has a good waterproof and sealing effect to prevent leakage when transporting liquid. The fastening nut 213 is rotated to tighten the limiting rod 211, so that the clamp 214 is fastened at the pipe connection. The installation and disassembly of fastening component 2 is simple.

[0027] An anti-loosening component 3 is sleeved on the outer side of the limiting rod 211. The anti-loosening component 3 is located between the rubber gasket 216 and the fastening nut 213. The anti-loosening component 3 includes a lower gasket 310 and an upper gasket 311. Both the lower gasket 310 and the upper gasket 311 have uniformly arranged oblique teeth 312 on their adjacent sides. The two sets of oblique teeth 312 are interlocked, and the inner oblique angle of the oblique teeth 312 is 6°. The lower gasket 310 and the upper gasket 311 have serrations 313 on their opposite sides. When the fastening nut 213 attempts to loosen its axial displacement due to vibration, the oblique teeth 312 on the oblique surfaces of the lower gasket 310 and the upper gasket 311 will horizontally open due to relative sliding, generating a lateral force. This forces the gasket to tightly lock the fastening nut 213, forming a self-locking wedge force to counteract the loosening tendency.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional PE pipe fitting with good heat insulation and waterproof effect, characterized in that: The system includes a PE composite pipe (1), which includes a first PE composite pipe (A) and a second PE composite pipe (B). One end of the first PE composite pipe (A) and the second PE composite pipe (B) is connected by a threaded interface (111) through heat fusion, and the other end of the first PE composite pipe (A) and the second PE composite pipe (B) is provided with an internal threaded ring (112) through heat fusion. The threaded interface (111) and the internal threaded ring (112) can be threadedly engaged. A fastening component (2) is provided on the outside of the connection between the first PE composite pipe (A) and the second PE composite pipe (B). The fastening assembly (2) includes a clamp (214). The clamp (214) has a groove (210) and a limiting groove (212) on both sides of its open end. A limiting rod (211) is provided inside the groove (210) through a rotating shaft. A fastening nut (213) is threaded on the outer side of one end of the limiting rod (211) that is inserted into the limiting groove (212).

2. The multi-functional PE pipe fitting with good heat insulation and waterproof effect according to claim 1, characterized in that: The PE composite pipe (1) adopts a multi-layer heat insulation design, with the inner layer being PE material, the interlayer being a heat insulation layer, and the outer layer being a polyethylene protective layer.

3. The multi-functional PE pipe fitting with good heat insulation and waterproof effect according to claim 1, characterized in that: The inner wall of the clamp (214) is tightly fitted with a protective pad (215), and the protective pad (215) is made of soft material. The outer side of the limiting rod (211) extends into one end of the sawtooth (313) and has a threaded line.

4. The multi-functional PE pipe fitting with good waterproof and thermal insulation effects according to claim 1, characterized in that: A rubber gasket (216) is slidably sleeved on the outside of the limiting rod (211), and the rubber gasket (216) is located between the fastening nut (213) and the limiting groove (212).

5. The multi-functional PE pipe fitting with good waterproof and thermal insulation effects according to claim 1, characterized in that: The limiting rod (211) is sleeved with an anti-loosening component (3), which is located between the rubber gasket (216) and the fastening nut (213).

6. The multifunctional PE pipe fitting with good heat insulation and waterproof effect according to claim 5, characterized in that: The anti-loosening component (3) includes a lower gasket (310) and an upper gasket (311). The lower gasket (310) and the upper gasket (311) are both arranged in a ring with uniform oblique teeth (312) on one side close to each other. The two sets of oblique teeth (312) are meshed with each other, and the inner oblique angle of the oblique teeth (312) is 6°.

7. The multi-functional PE pipe fitting with good heat insulation and waterproof effect according to claim 6, characterized in that: The lower gasket (310) and the upper gasket (311) are provided with serrations (313) on the side away from each other.

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