Low-temperature-resistant high-toughness copolymerized PPR (polypropylene random copolymer) pipe

Abstract

The utility model relates to a low temperature resistant high toughness copolymerized PPR pipe, which belongs to the technical field of PPR pipes, and comprises a pipe body, the pipe body comprises an inner protective layer, a high toughness layer is fixed on the outer surface of the inner protective layer, an outer protective layer is fixed on the outer surface of the high toughness layer, and protective shells are fixed on the upper side and the lower side of the pipe body. A fixing assembly penetrating through the protective shell is arranged in the pipe body, and a buffering assembly is arranged in the protective shell. According to the low-temperature-resistant high-toughness copolymerized PPR pipe, the toughness of the pipe body can be effectively improved through the arranged high-toughness layer, the low-temperature resistance of the pipe body can be effectively improved through the arranged inner protection layer, the inner pipe body can be protected through the arranged protection shell, and corrosion and impact of the external environment to the pipe body are reduced; and through the arranged fixing assembly, the protective shell can be rapidly replaced after being broken, the overall structure is simple, and the protection performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PPR pipes, in particular to a low-temperature resistant and high-toughness copolymer PPR pipe. Background Art

[0002] PPR is the abbreviation of type III polypropylene, also known as random copolymer polypropylene pipe. It adopts hot melting method, has special welding and cutting tools, and has high plasticity. PPR pipes are generally used for embedded walls or deep well pre-buried pipes.

[0003] However, the structure of most PPR pipes is generally simple. When in use, PPR pipes have poor anti-aging ability and do not have a protective structure. They are easily damaged when impacted by the outside world, which will affect the normal use and service life of the PPR pipes and cause inconvenience. Therefore, a low-temperature resistant and high-toughness copolymer PPR pipe is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a low-temperature resistant and high-toughness copolymer PPR pipe having the advantages of high protection, etc., which solves the problem that the PPR pipe has poor anti-aging ability and lacks a protective structure when in use.

[0005] To achieve the above object, the utility model provides the following technical solutions: a low temperature resistant high toughness copolymer PPR pipe, comprising a pipe body, the pipe body comprising an inner protective layer, a high toughness layer is fixed on the outer surface of the inner protective layer, an outer protective layer is fixed on the outer surface of the high toughness layer, and protective shells are fixed on both the upper and lower sides of the pipe body;

[0006] A fixing component penetrating the protective shell is disposed inside the pipe body, and the fixing component is used to fix the protective shell. A buffer component is disposed inside the protective shell, and the buffer component is used to buffer vibration.

[0007] The fixing assembly includes a positioning block, a positioning rod, two limit blocks and two adjustment blocks. The interior of the pipe body is fixed to the positioning block, the interior of the positioning block is fixed to the positioning rod that passes through the protective shell, the outer surface of the positioning rod is threadedly connected to the adjustment block, and the opposite sides of the two adjustment blocks are rotatably connected to the limit blocks.

[0008] Furthermore, the buffer assembly includes a telescopic rod, a buffer spring and a buffer plate, the telescopic rod is fixed to the protective shell, the telescopic rod and the protective shell are fixed with the buffer spring, and the opposite sides of the two telescopic rods are fixed with the buffer plate.

[0009] Furthermore, the telescopic rod includes an extension rod fixed to the protective shell, and the outer surface of the extension rod is slidably connected to an extension block fixed to the buffer plate.

[0010] Furthermore, a threaded strip is fixed on the outer surface of the positioning rod, and a threaded hole matching the threaded strip is provided inside the adjusting block.

[0011] Furthermore, sliding blocks are fixed on both the left and right sides of the buffer plate, and a sliding groove slidably connected to the sliding block is provided inside the protective shell.

[0012] Furthermore, a limiting hole matched with the positioning rod is provided inside the protective shell, and a through hole communicating with the limiting hole is provided inside the protective shell.

[0013] Furthermore, a friction strip is fixed to the outer surface of the adjustment block, and a sponge pad is fixed to the side of the limit block facing the protective shell.

[0014] Furthermore, the inner protective layer is a polyethylene low-temperature resistant layer, and the high-toughness layer is a polyolefin tear-resistant layer.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The low-temperature resistant and high-toughness copolymer PPR pipe can effectively improve the toughness of the pipe body by the high-toughness layer, and the inner protective layer can effectively improve the low-temperature resistance of the pipe body. The protective shell can protect the internal pipe body, reduce the corrosion and impact of the external environment on the pipe body, and the fixed components can make the protective shell quickly replaced after being broken. The overall structure is simple, and the protection is effectively improved, making the overall structure more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the pipe body structure of the utility model;

[0019] Figure 3 For this utility model Figure 1 A magnified view of the structure at center;

[0020] Figure 4 This is a schematic diagram of the structure of the fixing component of the utility model.

[0021] In the figure: 1 pipe body, 101 inner protective layer, 102 high-toughness layer, 103 outer protective layer, 2 protective shell, 3 fixing assembly, 301 positioning block, 302 positioning rod, 303 limit block, 304 adjustment block, 4 telescopic rod, 5 buffer spring, 6 buffer plate, 7 limit hole, 8 through hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 A low-temperature resistant and high-toughness copolymer PPR pipe in this embodiment includes a pipe body 1, and the pipe body 1 includes an inner protective layer 101. A high-toughness layer 102 is fixed to the outer surface of the inner protective layer 101, and an outer protective layer 103 is fixed to the outer surface of the high-toughness layer 102. The outer protective layer 103 is a random copolymer polypropylene pipe layer, and the inner protective layer 101 is a polyethylene low-temperature resistant layer. The low-temperature resistance of the pipe body 1 can be effectively improved by setting the polyethylene low-temperature resistant layer.

[0024] Furthermore, the high-toughness layer 102 is a polyolefin tear-resistant layer. The polyolefin tear-resistant layer can effectively improve the overall toughness of the pipe body 1, making the whole more practical. The upper and lower sides of the pipe body 1 are fixed with protective shells 2. The protective shells 2 can protect the internal pipe body 1, thereby effectively improving the durability of the pipe body 1 and the overall practicality.

[0025] In addition, a fixing component 3 that passes through the protective shell 2 is provided inside the pipe body 1, and the fixing component 3 is used to fix the protective shell 2. A buffer component is provided inside the protective shell 2, and the buffer component is used to buffer vibration. The buffer component includes a telescopic rod 4, a buffer spring 5 and a buffer plate 6. The telescopic rod 4 is fixed to the protective shell 2, and the telescopic rod 4 and the protective shell 2 are fixed with the buffer spring 5. When the protective shell 2 is impacted, the buffer spring 5 will be deformed, so that the buffer spring 5 can buffer the impact force, thereby effectively ensuring the overall stability of the pipe body 1.

[0026] In addition, the opposite side of the two telescopic rods 4 is fixed to the buffer plate 6, and sliding blocks are fixed on the left and right sides of the buffer plate 6. A sliding groove slidably connected to the sliding block is opened inside the protective shell 2. The sliding block and the sliding groove can effectively improve the sliding stability of the buffer plate 6. The telescopic rod 4 includes an extension rod fixed to the protective shell 2, and the outer surface of the extension rod is slidably connected to the extension block fixed to the buffer plate 6.

[0027] In general, polyethylene is a thermoplastic resin obtained by polymerization of ethylene monomers. It has excellent low-temperature resistance and good chemical stability. The polyethylene and polyolefin tear-resistant layers can effectively improve the low-temperature resistance and high toughness of the pipe body 1, thereby making the pipe body 1 more practical.

[0028] See also Figure 4 The fixing assembly 3 in this embodiment includes a positioning block 301, a positioning rod 302, two limit blocks 303 and two adjustment blocks 304. The interior of the pipe body 1 is fixed to the positioning block 301. The positioning block 301 is set to effectively improve the accuracy of the position of the positioning rod 302. The interior of the positioning block 301 is fixed to the positioning rod 302 that passes through the protective shell 2. The interior of the protective shell 2 is provided with a limit hole 7 that is compatible with the positioning rod 302. The interior of the protective shell 2 is provided with a through hole 8 that is connected to the limit hole 7. The through hole 8 is set so that the limit block 303 can pass through the protective shell 2. When the limit block 303 is staggered with the through hole 8, the limit block 303 will limit the movement of the protective shell 2.

[0029] It should be noted that the outer surface of the positioning rod 302 is threadedly connected to the adjustment block 304, and a threaded strip is fixed to the outer surface of the positioning rod 302. Through the threaded connection, when the adjustment block 304 rotates, it will move due to the extrusion of the thread. A threaded hole matching the threaded strip is provided inside the adjustment block 304. The opposite sides of the two adjustment blocks 304 are rotatably connected to the limit block 303. A friction strip is fixed to the outer surface of the adjustment block 304, and a sponge pad is fixed to the side of the limit block 303 facing the protective shell 2.

[0030] In general, after the limit block 303 passes through the protective shell 2 through the through hole 8, the limit block 303 is rotated so that the limit block 303 is staggered with the through hole 8, so that the limit block 303 can limit the movement of the protective shell 2, thereby completing the fixation of the protective shell 2. By rotating the adjustment block 304, the adjustment block 304 can drive the limit block 303 to move due to the extrusion of the thread, and then the position of the limit block 303 can be adjusted, which effectively improves the overall practicality.

[0031] The working principle of the above embodiment is:

[0032] The provided protective shell 2 can protect the pipe body 1. When the protective shell 2 is impacted, the telescopic rod 4 will be extended and retracted in length, so that the buffer spring 5 can be deformed, thereby buffering the impact, effectively ensuring the safety of the internal pipe body 1. When the protective shell 2 needs to be disassembled, by rotating the adjustment block 304, the adjustment block 304 can drive the limit block 303 to move due to the extrusion of the thread. At this time, the friction between the limit block 303 and the protective shell 2 can be reduced, so that the limit block 303 can be easily pushed to rotate. When the limit block 303 rotates to the same direction as the through hole 8, the limit block 303 can pass through the protective shell 2 through the through hole 8 to complete the disassembly of the protective shell 2. The overall structure is simple, which effectively improves the overall protection and makes the protective shell 2 easy to disassemble, making the overall more practical.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A low temperature resistant and high toughness copolymer PPR pipe, comprising a pipe body (1), characterized in that: The pipe body (1) comprises an inner protective layer (101), a high-toughness layer (102) is fixed on the outer surface of the inner protective layer (101), an outer protective layer (103) is fixed on the outer surface of the high-toughness layer (102), and protective shells (2) are fixed on both the upper and lower sides of the pipe body (1); A fixing component (3) penetrating the protective shell (2) is arranged inside the pipe body (1), and the fixing component (3) is used to fix the protective shell (2); a buffer component is arranged inside the protective shell (2), and the buffer component is used to buffer vibration; The fixing assembly (3) comprises a positioning block (301), a positioning rod (302), two limiting blocks (303) and two adjusting blocks (304); the interior of the pipe body (1) is fixed to the positioning block (301); the interior of the positioning block (301) is fixed to the positioning rod (302) penetrating the protective shell (2); the outer surface of the positioning rod (302) is threadedly connected to the adjusting block (304); and opposite sides of the two adjusting blocks (304) are rotatably connected to the limiting blocks (303).

2. A low temperature resistant and high toughness copolymer PPR pipe according to claim 1, characterized in that: The buffer assembly comprises a telescopic rod (4), a buffer spring (5) and a buffer plate (6); the telescopic rod (4) is fixed to the protective shell (2); the buffer spring (5) is fixed between the telescopic rod (4) and the protective shell (2); and the opposite sides of the two telescopic rods (4) are fixed to the buffer plate (6).

3. A low temperature resistant and high toughness copolymer PPR pipe according to claim 2, characterized in that: The telescopic rod (4) comprises an extension rod fixed to the protective shell (2), and an extension block fixed to the buffer plate (6) is slidably connected to the outer surface of the extension rod.

4. The low temperature resistant and high toughness copolymer PPR pipe according to claim 1, characterized in that: A threaded strip is fixed on the outer surface of the positioning rod (302), and a threaded hole matching the threaded strip is provided inside the adjusting block (304).

5. The low temperature resistant and high toughness copolymer PPR pipe according to claim 2, characterized in that: Sliding blocks are fixed on both the left and right sides of the buffer plate (6), and a sliding groove slidably connected to the sliding block is provided inside the protective shell (2).

6. The low temperature resistant and high toughness copolymer PPR pipe according to claim 1, characterized in that: A limiting hole (7) adapted to the positioning rod (302) is provided inside the protective shell (2), and a through hole (8) communicating with the limiting hole (7) is provided inside the protective shell (2).

7. The low temperature resistant and high toughness copolymer PPR pipe according to claim 1, characterized in that: A friction strip is fixed to the outer surface of the adjustment block (304), and a sponge pad is fixed to the side of the limit block (303) facing the protective shell (2).

8. The low temperature resistant and high toughness copolymer PPR pipe according to claim 1, characterized in that: The inner protective layer (101) is a polyethylene low-temperature resistant layer, and the high-toughness layer (102) is a polyolefin tear-resistant layer.

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