Connecting structure for PE pipe
By using threaded connections between external and internal threaded pipes and heating measures, the problems of water leakage and freezing cracks at PE pipe connections in cold weather were solved, thus improving sealing performance and adaptability.
Patent Information
- Application Number
- CN202520091023.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing PE pipe connections are prone to water seepage and expansion due to freezing in cold weather, leading to deformation and leakage at the connections.
The connection uses a threaded pipe with an external thread and an internal thread, combined with a sealing ring, an aluminum sleeve and a heat insulation cover. The connection is heated by a heating wire powered by a solar battery panel to prevent water leakage and freezing cracks.
It effectively prevents water seepage and freezing at the connection, ensuring that the pipeline does not leak in cold weather, and improves the sealing and adaptability of the connection.
Smart Images

Figure CN223579308U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of PE pipe connecting auxiliary structure, specifically connects structure for PE pipe. BACKGROUND
[0002] PE pipe is a kind of plastic pipe, has the characteristics such as corrosion resistance, impact resistance, long service life, is mainly used for water supply pipe and gas pipe.Searching, the China patent application No.202322129253.6 announced a kind of PE pipe fitting connecting structure, it includes: PE pipe, the outer surface of the PE pipe is movably connected with the sleeve, the outer surface of the sleeve is fixedly connected with the first vacuum chuck;Connecting pipe, the outer surface of the connecting pipe is fixedly connected with the second vacuum chuck, the first vacuum chuck and the second vacuum chuck position correspond;Protective shell, the outer surface of the protective shell is movably connected with the baffle, the first vacuum chuck and the second vacuum chuck are located in the interior of protective shell, by above device, realize the fastening, connection of PE pipe fitting, and make the connection more firm, protect the connecting component, it is convenient to disassemble and install.
[0003] Although the above patent realizes the fastening, connection of PE pipe fitting, and makes the connection more firm, protects the connecting component, it is convenient to disassemble and install, but in actual use, the connection is easy to seep water, when carrying out pipeline connection in the open air, the water seeped out of the connection is easy to freeze and expand when cold weather, leading to the deformation of the connection, the situation of water leakage appears.
[0004] Therefore, it needs to be reformed, effectively prevents the connection from seeping water, carries out pipeline connection in the open air, the water in pipe fitting expands when freezing when cold weather, avoids the situation of freeze-cracking deformation of the connection, the situation of water leakage occurs. Utility model content
[0005] To solve the problems in the background art, the utility model aims at providing a kind of connecting structure for PE pipe, with effectively prevent the connection from seeping water, carry out pipeline connection in the open air, the water in pipe fitting expands when freezing when cold weather, avoid the situation of freeze-cracking deformation of the connection, the situation of water leakage occurs, solve the problems that the connection is easy to seep water, carry out pipeline connection in the open air, the water seeped out of the connection is easy to freeze and expand when cold weather, leading to the deformation of the connection, the situation of water leakage appears.
[0006] The utility model provides following technical scheme: a connecting structure for PE pipe, including left pipe body and right pipe body, the right side fixed connection of left pipe body has outer thread pipe, the left side fixed connection of right pipe body has the internal thread pipe with outer thread pipe cooperation, the periphery of right pipe body inner wall all is equipped with square groove, the inside slide connection of square groove has moving block, the right side fixed connection of moving block has moving rod, the surface of moving rod is equipped with compression spring, the surface of compression spring is provided with rubber film, the left end of compression spring is fixedly connected with the right side of moving block, the right end of compression spring is fixedly connected with the right side of square groove inner wall, the inboard fixed connection of moving block has moving ring, the left side fixed connection of moving ring has aluminium sleeve, the outer surface of aluminium sleeve is connected with the inner wall of right pipe body and slides, the inside fixed connection of outer thread pipe has sealing ring, the left side fixed connection of right pipe body surface has heat shield, the inside of heat shield is provided with heating wire, the upper and lower sides of right side of right pipe body surface are all fixedly connected with solar cell panel, solar cell panel is connected with heating wire electricity.
[0007] The utility model has the advantages of the following:
[0008] 1. The utility model discloses a connecting structure for PE pipe, including left pipe body and right pipe body, the right side fixed connection of left pipe body has outer thread pipe, the left side fixed connection of right pipe body has the internal thread pipe with outer thread pipe cooperation, the periphery of right pipe body inner wall all is equipped with square groove, the inside slide connection of square groove has moving block, the right side fixed connection of moving block has moving rod, the surface of moving rod is equipped with compression spring, the surface of compression spring is provided with rubber film, the left end of compression spring is fixedly connected with the right side of moving block, the right end of compression spring is fixedly connected with the right side of square groove inner wall, the inboard fixed connection of moving block has moving ring, the left side fixed connection of moving ring has aluminium sleeve, the outer surface of aluminium sleeve is connected with the inner wall of right pipe body and slides, the inside fixed connection of outer thread pipe has sealing ring, the left side fixed connection of right pipe body surface has heat shield, the inside of heat shield is provided with heating wire, the upper and lower sides of right side of right pipe body surface are all fixedly connected with solar cell panel, solar cell panel is connected with heating wire electricity.
[0009] 2. The utility model discloses a connecting structure for PE pipe, including left pipe body and right pipe body, the right side fixed connection of left pipe body has outer thread pipe, the left side fixed connection of right pipe body has the internal thread pipe with outer thread pipe cooperation, the periphery of right pipe body inner wall all is equipped with square groove, the inside slide connection of square groove has moving block, the right side fixed connection of moving block has moving rod, the surface of moving rod is equipped with compression spring, the surface of compression spring is provided with rubber film, the left end of compression spring is fixedly connected with the right side of moving block, the right end of compression spring is fixedly connected with the right side of square groove inner wall, the inboard fixed connection of moving block has moving ring, the left side fixed connection of moving ring has aluminium sleeve, the outer surface of aluminium sleeve is connected with the inner wall of right pipe body and slides, the inside fixed connection of outer thread pipe has sealing ring, the left side fixed connection of right pipe body surface has heat shield, the inside of heat shield is provided with heating wire, the upper and lower sides of right side of right pipe body surface are all fixedly connected with solar cell panel, solar cell panel is connected with heating wire electricity. DRAWINGS
[0010] Figure 1 It is a structure schematic diagram of the utility model.
[0011] Figure 2 It is a structure schematic diagram of the utility model.
[0012] Figure 3 It is a structure schematic diagram of the utility model.
[0013] Figure 4 It is a structure schematic diagram of the utility model.
[0014] Figure 5 It is a structure schematic diagram of the utility model.
[0015] Figure 6 It is a structure schematic diagram of the utility model. Figure 1 It is a structure schematic diagram of the utility model. Specific implementation
[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0017] As Figures 1 to 6 shown, the connecting structure of PE pipe of the embodiment includes left pipe body 1 and right pipe body 2, the right side of left pipe body 1 is fixedly connected with external thread pipe 3, the left side of right pipe body 2 is fixedly connected with internal thread pipe 4 matched with external thread pipe 3, the periphery of the inner wall of right pipe body 2 is provided with square groove 5, the inside of square groove 5 is slidably connected with moving block 6, the inside of moving block 6 is provided with temperature sensing block (not shown), and the temperature sensing block is prior art, and its working principle is to sense the temperature inside the pipe fitting, the right side of moving block 6 is fixedly connected with moving rod 7, the surface of moving rod 7 is sleeved with compression spring 8, the surface of compression spring 8 is provided with rubber film, the left end of compression spring 8 is fixedly connected with the right side of moving block 6, the right end of compression spring 8 is fixedly connected with the right side of the inner wall of square groove 5, the inside of moving block 6 is fixedly connected with moving ring 9, the left side of moving ring 9 is fixedly connected with aluminum sleeve 10, the outer surface of aluminum sleeve 10 is slidably connected with the inner wall of right pipe body 2, the inside of external thread pipe 3 is fixedly connected with sealing ring 11, the left side of the surface of right pipe body 2 is fixedly connected with heat shield 12, the inside of heat shield 12 is provided with heating wire 13, the upper and lower sides right of the surface of right pipe body 2 are both fixedly connected with solar cell panel 14, and solar cell panel 14 is electrically connected with heating wire 13.
[0018] Reference Figure 1 , the left side of external thread pipe 3 is fixedly connected with sealing gasket 15, the periphery of the left side of sealing gasket 15 is fixedly connected with positioning rod 16, the right side of the surface of left pipe body 1 is rotatably connected with positioning ring 17, and the periphery of the right side of positioning ring 17 is provided with positioning groove matched with positioning rod 16.
[0019] The cooperation of the sealing gasket 15, the positioning rod 16 and the positioning ring 17 can guide the installation of the left pipe body 1 after the positioning rod 16 is inserted into the positioning ring 17, thereby ensuring smooth installation and avoiding the phenomenon of thread slipping when the outer threaded pipe 3 is connected with the inner threaded pipe 4. In addition, the left and right sides of the sealing gasket 15 are attached to the right side of the left pipe body 1 and the left side of the right pipe body 2, respectively, thereby further improving the sealing effect of the connection.
[0020] With reference to Figure 1 The surface of the left pipe body 1 is fixedly connected with a heat insulation baffle 18, the upper and lower sides of the heat insulation baffle 18 are threadedly connected with fixing bolts 19, and the upper and lower sides of the left side of the heat insulation cover 12 are provided with threaded holes matched with the fixing bolts 19.
[0021] The cooperation of the heat insulation baffle 18, the fixing bolts 19, the heat insulation cover 12 and the threaded holes can seal the heat insulation cover 12 after the installation is completed, thereby reducing the heat dissipation of the heating wire 13 during work and improving the temperature inside the heat insulation cover 12.
[0022] With reference to Figure 1 and Figure 6 The inner wall of the right pipe body 2 is provided with a circular groove 20 around the periphery, the right end of the moving rod 7 extends into the circular groove 20 and is slidably connected with the inner wall of the circular groove 20, and the inner wall of the right pipe body 2 is provided with a water inlet hole 21 communicated with the circular groove 20.
[0023] The cooperation of the circular groove 20 and the water inlet hole 21 can make the water flow into the circular groove 20 through the water inlet hole 21 after the pipe connection is completed, thereby extruding and fixing the moving rod 7 through water pressure, pushing the moving block 6 and the moving ring 9 to the left, and making the left side of the aluminum sleeve 10 tightly attached to the sealing ring 11.
[0024] With reference to Figure 1 The left side of the left pipe body 1 is fixedly connected with a stepped sleeve 22, and the right side of the right pipe body 2 is provided with a stepped groove 23.
[0025] The cooperation of the stepped sleeve 22 and the stepped groove 23 can connect the pipe with PE pipes of different diameters, thereby improving the adaptability of the pipe.
[0026] With reference to Figure 1 The outer diameter of the aluminum sleeve 10 is the same as the inner diameter of the outer threaded pipe 3, and the right side of the sealing ring 11 is provided with a groove with the same size as the cross-sectional size of the aluminum sleeve 10.
[0027] The embodiment ensures that the aluminum sleeve 10 can be inserted into the outer threaded pipe 3 and the sealing ring 11 to make the left side of the aluminum sleeve 10 enter the groove inside the right side of the sealing ring 11 when the installation connection is performed, and further improves the sealing effect.
[0028] The utility model discloses a right movement left pipe body 1 makes outer threaded pipe 3 close inner threaded pipe 4, rotates left pipe body 1 and makes outer threaded pipe 3 and inner threaded pipe 4 thread connection, connects left pipe body 1 with right pipe body 2, and the left side of aluminum sleeve 10 contacts with the right side of sealing ring 11 when connecting, and sealing ring 11 moves right and drives aluminum sleeve 10 to move right and makes compression spring 8 contract when connecting, when connecting, heat shield 12 is set up in the connecting place, and compression spring 8 applies left pressure to aluminum sleeve 10 simultaneously, makes the left side of aluminum sleeve 10 and the right side of sealing ring 11 closely fit, and the inside of outer threaded pipe 3 and inner threaded pipe 4 is set up through aluminum sleeve 10 simultaneously, and the connecting place of outer threaded pipe 3 and inner threaded pipe 4 is protected, prevents water seepage, when cold weather is encountered, when the temperature inside pipe fitting reaches below zero, temperature sensor sends signal to solar cell panel 14, and solar cell panel 14 supplies power to heating wire 13 and makes it heat, heats the connecting place inside heat shield 12, avoids water seepage icing expansion of connecting place, thereby reach effective prevention water seepage of connecting place, carry out pipeline connection in the outdoor, when cold weather is encountered, pipe fitting interior water icing expansion, avoid the freeze crack deformation of connecting place, and the situation of water leakage occurs.
Claims
1. A connecting structure for PE pipes comprising a left pipe body (1) and a right pipe body (2), characterized in that: The right side of the left pipe body (1) is fixedly connected with an outer threaded pipe (3), the left side of the right pipe body (2) is fixedly connected with an inner threaded pipe (4) matched with the outer threaded pipe (3), the periphery of the inner wall of the right pipe body (2) is provided with a square groove (5), the inside of the square groove (5) is slidably connected with a moving block (6), the right side of the moving block (6) is fixedly connected with a moving rod (7), the surface of the moving rod (7) is sleeved with a compression spring (8), the surface of the compression spring (8) is provided with a rubber film, the left end of the compression spring (8) is fixedly connected with the right side of the moving block (6), the right end of the compression spring (8) is fixedly connected with the right side of the inner wall of the square groove (5), the inside of the moving block (6) is fixedly connected with a moving ring (9), the left side of the moving ring (9) is fixedly connected with an aluminum sleeve (10), the outer surface of the aluminum sleeve (10) is slidably connected with the inner wall of the right pipe body (2), the inside of the outer threaded pipe (3) is fixedly connected with a sealing ring (11), the left side of the surface of the right pipe body (2) is fixedly connected with a heat shield (12), the inside of the heat shield (12) is provided with a heating wire (13), the upper and lower sides of the right side of the surface of the right pipe body (2) are fixedly connected with solar cell panels (14), the solar cell panels (14) are electrically connected with the heating wire (13).
2. The connecting structure for PE pipes according to claim 1, characterized in that: The left side of the outer threaded pipe (3) is fixedly connected with a sealing gasket (15), the periphery of the left side of the sealing gasket (15) is fixedly connected with a positioning rod (16), the right side of the surface of the left pipe body (1) is rotatably connected with a positioning ring (17), the periphery of the right side of the positioning ring (17) is provided with a positioning groove matched with the positioning rod (16).
3. The connecting structure for PE pipes according to claim 2, characterized in that: The surface of the left pipe body (1) is fixedly connected with a heat insulation baffle (18), the upper and lower sides of the heat insulation baffle (18) are threadedly connected with fixing bolts (19), the upper and lower sides of the left side of the heat shield (12) are provided with threaded holes matched with the fixing bolts (19).
4. The connecting structure for PE pipes according to claim 3, characterized in that: The periphery of the inner wall of the right pipe body (2) is provided with a circular groove (20) communicated with the square groove (5), the right end of the moving rod (7) extends into the inside of the circular groove (20) and is slidably connected with the inner wall of the circular groove (20), the periphery of the inner wall of the right pipe body (2) is provided with a water inlet hole (21) communicated with the circular groove (20).
5. The connecting structure for PE pipes according to claim 4, characterized in that: The left side of the left pipe body (1) is fixedly connected with a stepped sleeve (22), the right side of the right pipe body (2) is provided with a stepped groove (23).
6. The connecting structure for PE pipes according to claim 5, characterized in that: The outer diameter of the aluminum sleeve (10) is same as the inner diameter of the outer threaded pipe (3), the right side of the sealing ring (11) is provided with a groove, and the size of the groove is same as the size of the cross section of the aluminum sleeve (10).
Citation Information
Patent Citations
PE pipe fitting connecting structure
CN221097876U