Anti-leakage PE pipeline for municipal water supply

Abstract

The utility model belongs to the technical field of pipelines, and particularly relates to an anti-leakage PE pipeline for municipal water supply, comprising: a pipeline main body comprising a first pipeline and a second pipeline; the connecting structure comprises a connector arranged on the first pipeline and a groove formed in the second pipeline, and the connector is in threaded connection with the groove; the sealing structure is arranged at the connecting structure and used for sealing the joint of the first pipeline and the second pipeline; wherein the first pipeline and the second pipeline are connected to form a mounting groove, and the sealing structure is arranged in the mounting groove. The device has the beneficial effects that the outer sleeve is arranged, the first spring and the second spring are wrapped in the outer sleeve, the springs are effectively protected, and the springs are not affected by external environmental factors.

Description

Technical Field

[0001] The present application belongs to the technical field of pipelines, and in particular relates to a leakage-proof PE pipeline for municipal water supply. Background Art

[0002] PE materials are widely used in the field of water supply pipe manufacturing due to their high strength, corrosion resistance, and non-toxicity. Because it will not rust, it is an ideal pipe to replace ordinary iron water supply pipes. my country's plastic pipes are developing rapidly and the quality is constantly improving. Among them, polyethylene PE pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas pipelines, electrical and telecommunications protective casings, industrial pipes, agricultural pipes, etc. due to their unique advantages. It is mainly used in urban water supply, urban gas supply, farmland irrigation and other fields.

[0003] Announcement No. CN220268719U discloses a PE pipe for water supply and drainage, including: a main body component, including a first pipe, a second pipe connected to the first pipe; a connecting component, including a threaded buckle arranged at the top of the first pipe, a threaded slot opened at the bottom of the first pipe, and a rubber sealing ring connected to the outer wall of the first pipe. The anti-blocking component is a set, which is arranged inside the first pipe and the second pipe. The above patent adapts to the thermal expansion and contraction problem of PE pipes by setting springs to prevent the pipe interface from being too tight and damaging the pipe. Although it can solve the problem of thermal expansion and contraction of PE pipes, in actual use, the spring as a key component has no protective device and is always exposed to the outside and damaged by external factors, which causes the above patent to lose its corresponding effect and cannot adapt to the problem of thermal expansion and contraction of PE pipes, so it needs to be improved. Utility Model Content

[0004] The purpose of this application is to provide a leakage-proof PE pipe for municipal water supply, which can solve the above-mentioned problems.

[0005] The purpose of this application is to provide a leakage-proof PE pipe for municipal water supply, comprising:

[0006] A pipeline body, including a first pipeline and a second pipeline;

[0007] The connection structure comprises a joint provided on the first pipe and a groove provided on the second pipe, wherein the joint and the groove are connected by threads;

[0008] A sealing structure, arranged at the connection structure, for sealing the connection between the first pipeline and the second pipeline;

[0009] Wherein, the first pipe and the second pipe are connected to form an installation groove, and the sealing structure is arranged in the installation groove.

[0010] The above-mentioned anti-leakage PE pipe for municipal water supply is adopted. The first pipe and the second pipe are responsible for transmitting and distributing water sources. They are made of PE material and have excellent corrosion resistance, wear resistance and aging resistance, ensuring the long-term stable operation of the water supply system. By setting a connection structure, which includes a joint and a groove, the two are respectively arranged on the first pipe and the second pipe, and are connected by a threaded connection, it is not only easy to install, but also can withstand large tension and torque, ensuring that the connection will not loosen or break due to external force.

[0011] The space formed after the first pipe and the second pipe are connected is an installation groove, which is used to accommodate the sealing structure. The sealing structure is arranged in the installation groove and can effectively prevent water from leaking from the connection.

[0012] Furthermore, the sealing structure comprises:

[0013] A sealing ring is arranged on the mounting groove;

[0014] A collar, comprising a first half-ring and a second half-ring;

[0015] An adjusting member, one end of which is connected to one end of the first half ring, and the other end of which is connected to one end of the second half ring;

[0016] A fixing member, one end of which is connected to the other end of the first half ring, and the other end of which is connected to the other end of the second half ring;

[0017] The adjusting member is connected to the first half ring and the second half ring via fasteners.

[0018] The sealing ring is arranged on the installation groove formed after the first pipe and the second pipe are connected. It is mainly used to perform preliminary sealing on the connection between the first pipe and the second pipe to prevent water from leaking directly from the connection. It is made of elastic material, such as rubber or silicone, to ensure that it has good sealing and corrosion resistance. The collar includes a first half ring and a second half ring. The two half rings can support and squeeze the installation groove in a closed state and form a tight sealing structure with the sealing ring. One end of the adjusting member is connected to one end of the first half ring, and the other end is connected to one end of the second half ring. The function of the adjusting member is to allow the first half ring and the second half ring to move relative to each other within a certain range to adapt to installation grooves of different sizes or adjust the tightness of the sealing structure. It can also adapt to the diameter change caused by thermal expansion and contraction of the PE pipe. At the same time, the adjusting member is connected to the first half ring and the second half ring by fasteners (such as bolts, nuts, etc.) to ensure the tightness and stability of the collar. One end of the fixing member is connected to the other end of the first half ring, and the other end is connected to the other end of the second half ring. It is used to ensure that the ring can remain stable in the closed state and prevent it from loosening or shifting due to external forces during use.

[0019] This sealing structure achieves all-round sealing of the connection of the anti-leakage PE pipe for municipal water supply through the combination of sealing rings, collars, adjusting parts and fixing parts, which not only ensures the firmness and stability of the pipe connection, but also effectively reduces the risk of leakage and improves the safety and reliability of the water supply system. At the same time, the design of the sealing structure also takes into account the convenience of installation and maintenance, which is convenient for replacement or repair when necessary.

[0020] Further: the adjusting member comprises:

[0021] An outer sleeve, the interior of which is provided with a movable groove;

[0022] An inner telescopic member, one end of which extends into the movable groove and forms a telescopic structure with the outer sleeve, and the other end of which is connected to the second half ring;

[0023] A sliding sheet is disposed in the movable groove and is capable of sliding in the movable groove;

[0024] An elastic component includes a first spring and a second spring disposed on both sides of the sliding sheet;

[0025] Wherein, two ends of the first spring are respectively connected to the sliding sheet and the inner telescopic member, and two ends of the second spring are respectively connected to the sliding sheet and the movable groove.

[0026] By arranging an outer sleeve, an active groove is provided inside the outer sleeve, providing a movable space for the inner telescopic member, the sliding piece and the elastic component. One end of the inner telescopic member extends into the active groove of the outer sleeve, forms a telescopic structure with the outer sleeve, and the other end is connected with the second semi-ring. The inner telescopic member is responsible for transmitting the movement of the second semi-ring, and simultaneously performs telescopic motion in the active groove of the outer sleeve to adapt to mounting grooves of different sizes. The sliding piece is arranged in the active groove, can slide freely in the active groove, and here the sliding piece acts as an intermediary between the inner telescopic member and the outer sleeve, and its sliding motion can regulate the telescopic degree of the inner telescopic member, and then adjusts the diameter of the collar. The elastic component includes a first spring and a second spring arranged on both sides of the sliding piece. The two ends of the first spring are respectively connected to the sliding piece and the inner telescopic piece. When the inner telescopic piece moves toward the inside of the outer sleeve, that is, when the diameter of the sleeve changes, the first spring and the second spring are compressed or stretched, so that the inner telescopic piece moves inward or outward, ensuring that the diameter change of the ring is consistent with the diameter change of the composite pipe body. At the same time, the setting of the outer sleeve wraps the first spring and the second spring inside, effectively protecting the springs and preventing the springs from being affected by external environmental factors.

[0027] Furthermore, the inner telescopic member comprises:

[0028] A connecting seat, wherein mounting ears are provided on both sides of the connecting seat, and threaded holes are provided on the mounting ears;

[0029] A guide rod, one end of which is connected to the connecting seat, and a plurality of guide rods are provided;

[0030] A connecting block is disposed in the movable groove and can slide in the movable groove, one end of the connecting block is connected to the first spring, and the other end is connected to the guide rod;

[0031] Wherein, the outer sleeve is provided with a plurality of through holes adapted to the guide rods.

[0032] The two sides of the connecting seat are provided with mounting ears, and the mounting ears are provided with threaded holes, which are used to connect with the second half ring, so as to ensure that the inner telescopic member can drive the second half ring to perform telescopic movement. One end of the guide rod is connected to the connecting seat, and the other end is connected to the connecting block, which is responsible for transmitting the movement of the connecting seat and guiding the connecting block to slide in the movable groove. There are multiple guide rods, which increases the stability of the structure and prevents the failure caused by the uneven force of a single guide rod. The multiple guide rods can also ensure that the connecting block remains stable during the sliding process and prevent it from deflecting or rotating. The connecting block is arranged in the movable groove and can slide in the movable groove. One end of the connecting block is connected to the first spring and the other end is connected to the guide rod. When the connecting seat moves, the guide rod drives the connecting block to slide in the movable groove, thereby compressing or releasing the first spring and the second spring to adjust the diameter of the collar. By providing multiple through holes adapted to the guide rod on the outer sleeve, the through holes are used for the guide rod to pass through, and the motion range of the guide rod is limited to prevent it from falling off from the outer sleeve.

[0033] In the present application, adaptive adjustment of the diameter of the collar is achieved through the coordinated action of components such as the connecting seat, the guide rod, the connecting block, and the through hole on the outer sleeve. As the diameter of the PE pipe changes due to thermal expansion and contraction, the inner telescopic part can automatically adjust its length according to the actual size of the installation groove, thereby ensuring that the collar can fit tightly into the installation groove and achieve a good sealing effect.

[0034] Furthermore, a mounting frame is provided on the through hole, a linear bearing is provided in the mounting frame, and the guide rod passes through the linear bearing and cooperates with the linear bearing.

[0035] On each through hole, there is a mounting frame for fixing the linear bearing and ensuring that it can work stably in the through hole. The linear bearing is installed in the mounting frame and cooperates with the guide rod. As a linear motion guide mechanism, the main function of the linear bearing is to provide stable, low-friction sliding support for the guide rod, so that the guide rod has low friction resistance when sliding in the linear bearing. When the guide rod slides, the steel ball in the linear bearing will roll along the surface of the guide rod, thereby greatly reducing the friction resistance between the guide rod and the linear bearing. It not only ensures the stable sliding of the guide rod, but also extends the service life of the sealing structure and reduces the risk of failure caused by friction and wear.

[0036] Furthermore, the fixing member includes:

[0037] A first fixing plate is arranged on the first half ring, wherein the first fixing plate is provided with a protrusion, and the protrusion is provided with a first positioning hole penetrating through the first fixing plate;

[0038] A second fixing plate, disposed on the second half ring, wherein the second fixing plate is provided with a second positioning hole;

[0039] A connecting assembly, comprising a positioning cover threadedly connected to the protrusion, a threaded hole provided on the positioning cover, and a bolt and a nut;

[0040] The bolt passes through the threaded hole, the first positioning hole, and the second positioning hole on the positioning cover in sequence and then cooperates with the nut.

[0041] By arranging a first fixing plate on the first half ring, and arranging a protrusion on the first fixing plate, and arranging a first positioning hole penetrating the first fixing plate on the protrusion, the design of the protrusion and the first positioning hole enables the first fixing plate to be accurately positioned and connected with the second fixing plate. By arranging a second fixing plate on the second half ring, and arranging a second positioning hole on the second fixing plate. The second positioning hole corresponds to the first positioning hole on the first fixing plate, and is used for passing and fixing the bolt.

[0042] The connection assembly includes a positioning cover connected to the protrusion thread, a threaded hole provided on the positioning cover, a bolt and a nut. The positioning cover is threadedly connected to the protrusion on the first fixing plate to ensure accurate alignment between the first fixing plate and the second fixing plate. The bolt passes through the threaded hole, the first positioning hole, and the second positioning hole on the positioning cover in sequence and then cooperates with the nut to achieve a tight connection and fixation between the first half ring and the second half ring.

[0043] During the installation process, the positioning cover is threadedly connected to the protrusion on the first fixing plate to achieve accurate alignment between the first fixing plate and the second fixing plate. Then, the bolts are passed through the threaded holes, the first positioning holes, and the second positioning holes on the positioning cover in sequence and fixed with nuts. In this way, the first half ring and the second half ring are tightly connected together to form a complete sealing structure, making the connection between the first half ring and the second half ring more stable and reliable and not easy to loosen.

[0044] The beneficial effects of this application are:

[0045] 1. By setting a connection structure, which includes a joint and a groove, the two are respectively set on the first pipe and the second pipe, and are connected by a threaded connection method, it is not only easy to install, but also can withstand a large tension and torque, ensuring that the connection will not be loosened or broken due to external force, and the space formed after the first pipe and the second pipe are connected is an installation groove, which is used to accommodate a sealing structure. The sealing structure is set in the installation groove, which can effectively prevent water from leaking from the connection;

[0046] 2. By setting an outer sleeve, the first spring and the second spring are wrapped inside, which effectively protects the springs and prevents the springs from being affected by external environmental factors;

[0047] 3. By setting up a linear bearing and cooperating with a guide rod as a linear motion guide mechanism, a stable, low-friction sliding support is provided for the guide rod, so that the guide rod has a lower friction resistance when sliding in the linear bearing. When the guide rod slides, the steel ball in the linear bearing will roll along the surface of the guide rod, thereby greatly reducing the friction resistance between the guide rod and the linear bearing, which not only ensures the stable sliding of the guide rod, but also extends the service life of the sealing structure and reduces the risk of failure due to friction and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a structural schematic diagram of the utility model;

[0049] Figure 2 This is a schematic diagram of the installation structure of the first pipeline and the second pipeline of the utility model;

[0050] Figure 3 It is a schematic diagram of the sealing structure of the utility model;

[0051] Figure 4 yes Figure 3 A magnified view of middle;

[0052] Figure 5 It is a cross-sectional view of the fixing member of the utility model.

[0053] The reference numerals in the figure are: 100, first pipe; 200, second pipe; 300, connection structure; 310, joint; 320, groove; 330, mounting groove; 400, sealing ring; 410, collar; 420, first half ring; 430, second half ring; 500, adjustment member; 510, outer sleeve; 511, movable groove; 520, inner telescopic member; 521, connection seat; 522, mounting ear; 523, guide rod; 524 , connecting block; 526, mounting frame; 527, linear bearing; 530, sliding sheet; 540, elastic component; 541, first spring; 542, second spring; 600, fixing piece; 610, first fixing sheet; 611, protrusion; 612, first positioning hole; 620, second fixing sheet; 621, second positioning hole; 630, connecting component; 631, positioning cover; 632, threaded hole; 633, bolt; 634, nut. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0055] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0056] The anti-leakage PE pipe for municipal water supply provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0057] Embodiment 1:

[0058] like Figures 1 to 4 As shown, the embodiment of the present application provides a leakage-proof PE pipe for municipal water supply, comprising:

[0059] The pipeline body includes a first pipeline 100 and a second pipeline 200;

[0060] The connection structure 300 includes a joint 310 disposed on the first pipe 100 and a groove 320 disposed on the second pipe 200, and the joint 310 and the groove 320 are connected by threads;

[0061] A sealing structure, disposed at the connection structure 300, for sealing the connection between the first pipe 100 and the second pipe 200;

[0062] The first pipe 100 and the second pipe 200 are connected to form a mounting groove 330 , and the sealing structure is disposed in the mounting groove 330 .

[0063] In some implementations of the embodiments of the present application, Figure 1 As shown, the above-mentioned anti-leakage PE pipe for municipal water supply is used. The first pipe 100 and the second pipe 200 are responsible for transmitting and distributing water sources. They are made of PE material and have excellent corrosion resistance, wear resistance and aging resistance, ensuring the long-term stable operation of the water supply system. By setting a connection structure 300, which includes a joint 310 and a groove 320, both of which are respectively arranged on the first pipe 100 and the second pipe 200, and connected by a threaded connection, it is not only easy to install, but also can withstand large tension and torque, ensuring that the connection will not loosen or break due to external force.

[0064] The space formed by connecting the first pipe 100 and the second pipe 200 is a mounting groove 330, which is used to accommodate a sealing structure. The sealing structure is arranged in the mounting groove 330, and can effectively prevent water from leaking from the connection.

[0065] Embodiment 2:

[0066] An embodiment of the present application provides a leakage-proof PE pipe for municipal water supply. In addition to the above-mentioned technical features, the leakage-proof PE pipe for municipal water supply in the embodiment of the present application also includes the following technical features.

[0067] like Figure 2 and Figure 3 As shown, the sealing structure includes:

[0068] The sealing ring 400 is disposed on the mounting groove 330;

[0069] The collar 410 includes a first half-ring 420 and a second half-ring 430;

[0070] An adjusting member 500, one end of which is connected to one end of the first half ring 420, and the other end of which is connected to one end of the second half ring 430;

[0071] A fixing member 600, one end of which is connected to the other end of the first half ring 420, and the other end of which is connected to the other end of the second half ring 430;

[0072] The adjusting member 500 is connected to the first half ring 420 and the second half ring 430 via fasteners.

[0073] In the embodiment of the present application, the sealing ring 400 is arranged on the mounting groove 330 formed after the first pipe 100 and the second pipe 200 are connected, and is mainly used to perform preliminary sealing on the connection of the first pipe 100 and the second pipe 200 to prevent water from directly leaking from the connection. It is made of elastic material, such as rubber or silicone, to ensure that it has good sealing and corrosion resistance. The collar 410 includes a first half ring 420 and a second half ring 430, which can support and squeeze the mounting groove 330 in a closed state and form a tight sealing structure with the sealing ring 400. One end of the adjusting member 500 is connected to one end of the first half ring 420, and the other end is connected to one end of the second half ring 430. The function of the adjusting member 500 is to allow the first half ring 420 and the second half ring 430 to move relative to each other within a certain range to adapt to the mounting grooves 330 of different sizes or adjust the tightness of the sealing structure, and can also adapt to the diameter change caused by thermal expansion and contraction of the PE pipe. At the same time, the adjusting member 500 is connected to the first half ring 420 and the second half ring 430 by fasteners (such as bolts 633, nuts 634, etc.) to ensure the tightness and stability of the collar 410. One end of the fixing member 600 is connected to the other end of the first half ring 420, and the other end is connected to the other end of the second half ring 430. It is used to ensure that the collar 410 can remain stable in the closed state and prevent it from loosening or shifting due to external force during use.

[0074] This sealing structure realizes all-round sealing of the connection of the anti-leakage PE pipe for municipal water supply through the combination of the sealing ring 400, the collar 410, the adjusting member 500 and the fixing member 600, which not only ensures the firmness and stability of the pipe connection, but also effectively reduces the risk of leakage and improves the safety and reliability of the water supply system. At the same time, the design of the sealing structure also takes into account the convenience of installation and maintenance, so that it is convenient to replace or repair when necessary.

[0075] Embodiment 3:

[0076] An embodiment of the present application provides a leakage-proof PE pipe for municipal water supply. In addition to the above-mentioned technical features, the leakage-proof PE pipe for municipal water supply in the embodiment of the present application also includes the following technical features.

[0077] like Figure 3 and Figure 4 As shown, the adjustment member 500 includes:

[0078] An outer sleeve 510, wherein a movable groove 511 is provided inside thereof;

[0079] An inner telescopic member 520, one end of which extends into the movable groove 511 and forms a telescopic structure with the outer sleeve 510, and the other end of which is connected to the second half ring 430;

[0080] A sliding sheet 530 is disposed in the movable groove 511 and is capable of sliding in the movable groove 511;

[0081] The elastic component 540 includes a first spring 541 and a second spring 542 arranged on both sides of the sliding sheet 530;

[0082] The two ends of the first spring 541 are connected to the sliding piece 530 and the inner telescopic member 520 respectively, and the two ends of the second spring 542 are connected to the sliding piece 530 and the movable groove 511 respectively.

[0083] In the present application embodiment, by arranging outer sleeve 510, outer sleeve 510 is provided with movable groove 511 inside, for inner telescopic member 520, sliding piece 530 and elastic component 540 provide activity space.One end of inner telescopic member 520 extends in the movable groove 511 of outer sleeve 510, forms telescopic structure with outer sleeve 510, and the other end is connected with second semi-ring 430.Inner telescopic member 520 is responsible for transmitting the movement of second semi-ring 430, and carries out telescopic motion in the movable groove 511 of outer sleeve 510 simultaneously, to adapt to the mounting groove 330 of different sizes.Sliding piece 530 is arranged in the movable groove 511, can slide freely in the movable groove 511, here sliding piece 530 is used as the intermediary between inner telescopic member 520 and outer sleeve 510, and its sliding motion can regulate the telescopic degree of inner telescopic member 520, and then adjusts the diameter of collar 410. The elastic component 540 includes a first spring 541 and a second spring 542 arranged on both sides of the sliding piece 530. The two ends of the first spring 541 are respectively connected to the sliding piece 530 and the inner telescopic member 520. When the inner telescopic member 520 moves toward the inside of the outer sleeve 510, that is, when the diameter of the sleeve changes, the first spring 541 and the second spring 542 are compressed or stretched, so that the inner telescopic member 520 moves inward or outward, ensuring that the diameter change of the ring 410 is consistent with the diameter change of the composite pipe body. At the same time, the setting of the outer sleeve 510 wraps the first spring 541 and the second spring 542 inside, effectively protecting the springs and preventing the springs from being affected by external environmental factors.

[0084] Embodiment 4:

[0085] An embodiment of the present application provides a leakage-proof PE pipe for municipal water supply. In addition to the above-mentioned technical features, the leakage-proof PE pipe for municipal water supply in the embodiment of the present application also includes the following technical features.

[0086] like Figure 4 As shown, the inner telescopic member 520 includes:

[0087] A connecting seat 521, with mounting ears 522 disposed on both sides of the connecting seat 521, and threaded holes 632 disposed on the mounting ears 522;

[0088] A guide rod 523, one end of which is connected to the connecting seat 521, and a plurality of guide rods 523 are provided;

[0089] A connecting block 524 is disposed in the movable groove 511 and can slide in the movable groove 511, one end of the connecting block 524 is connected to the first spring 541, and the other end is connected to the guide rod 523;

[0090] The outer sleeve is provided with a plurality of through holes adapted to the guide rods 523 .

[0091] In the embodiment of the present application, mounting ears 522 are provided on both sides of the connection seat 521, and threaded holes 632 are provided on the mounting ears 522. These threaded holes 632 are used to connect with the second half ring 430, so as to ensure that the inner telescopic member 520 can drive the second half ring 430 to perform telescopic movement. One end of the guide rod 523 is connected to the connection seat 521, and the other end is connected to the connection block 524, which is responsible for transmitting the movement of the connection seat 521 and guiding the connection block 524 to slide in the movable groove 511. A plurality of guide rods 523 are provided, thereby increasing the stability of the structure and preventing failures caused by uneven force on a single guide rod 523. In addition, the plurality of guide rods 523 can also ensure that the connection block 524 remains stable during the sliding process to prevent it from deflecting or rotating. The connecting block 524 is arranged in the movable groove 511 and can slide in the movable groove 511. One end of the connecting block 524 is connected to the first spring 541 and the other end is connected to the guide rod 523. When the connecting seat 521 moves, the guide rod 523 drives the connecting block 524 to slide in the movable groove 511, thereby compressing or releasing the first spring 541 and the second spring 542 to adjust the diameter of the collar 410. A plurality of through holes adapted to the guide rod 523 are arranged on the outer sleeve 510. The through holes are used for the guide rod 523 to pass through, and the movement range of the guide rod 523 is limited to prevent the guide rod 523 from falling off from the outer sleeve 510.

[0092] In the present application, the adaptive adjustment of the diameter of the collar 410 is achieved through the coordinated action of components such as the connecting seat 521, the guide rod 523, the connecting block 524 and the through hole on the outer sleeve 510. As the diameter of the PE pipe changes due to thermal expansion and contraction, the inner telescopic member 520 can automatically adjust its length according to the actual size of the installation groove 330, thereby ensuring that the collar 410 can fit tightly into the installation groove 330 and achieve a good sealing effect.

[0093] Furthermore, a mounting frame 526 is provided on the through hole, a linear bearing 527 is provided inside the mounting frame 526 , and the guide rod 523 passes through the linear bearing 527 and cooperates with the linear bearing 527 .

[0094] In some embodiments of the present application, a mounting frame 526 is provided on each through hole to fix the linear bearing 527 and ensure that it can work stably in the through hole. The linear bearing 527 is installed in the mounting frame 526 and cooperates with the guide rod 523. As a linear motion guide mechanism, the linear bearing 527 mainly provides stable and low-friction sliding support for the guide rod 523, so that the guide rod 523 has low friction resistance when sliding in the linear bearing 527. When the guide rod 523 slides, the steel ball in the linear bearing 527 will roll along the surface of the guide rod 523, thereby greatly reducing the friction resistance between the guide rod 523 and the linear bearing 527. Not only does it ensure the stable sliding of the guide rod 523, but it also extends the service life of the sealing structure and reduces the risk of failure caused by friction and wear.

[0095] Embodiment 5:

[0096] An embodiment of the present application provides a leakage-proof PE pipe for municipal water supply. In addition to the above-mentioned technical features, the leakage-proof PE pipe for municipal water supply in the embodiment of the present application also includes the following technical features.

[0097] like Figure 3 and Figure 5 As shown, the fixing member 600 includes:

[0098] A first fixing plate 610 is disposed on the first half ring 420 . A protrusion 611 is disposed on the first fixing plate 610 . A first positioning hole 612 penetrating the first fixing plate 610 is disposed on the protrusion 611 .

[0099] A second fixing plate 620 is disposed on the second half ring 430 , and a second positioning hole 621 is disposed on the second fixing plate 620 ;

[0100] The connecting assembly 630 includes a positioning cover 631 threadedly connected to the protrusion 611, a threaded hole 632 provided on the positioning cover 631, a bolt 633 and a nut 634;

[0101] The bolt 633 passes through the threaded hole 632 , the first positioning hole 612 , and the second positioning hole 621 on the positioning cover 631 in sequence and then cooperates with the nut 634 .

[0102] By arranging the first fixing plate 610 on the first half ring 420, and arranging the protrusion 611 on the first fixing plate 610, and arranging the first positioning hole 612 penetrating the first fixing plate 610 on the protrusion 611, the design of the protrusion 611 and the first positioning hole 612 enables the first fixing plate 610 to be accurately positioned and connected with the second fixing plate 620. By arranging the second fixing plate 620 on the second half ring 430, and arranging the second positioning hole 621 on the second fixing plate 620. The second positioning hole 621 corresponds to the first positioning hole 612 on the first fixing plate 610, and is used for the bolt 633 to pass through and fix.

[0103] The connection assembly 630 includes a positioning cover 631 threadedly connected to the protrusion 611, a threaded hole 632 provided on the positioning cover 631, a bolt 633 and a nut 634. The positioning cover 631 is threadedly connected to the protrusion 611 on the first fixing plate 610, thereby ensuring the accurate alignment between the first fixing plate 610 and the second fixing plate 620. The bolt 633 passes through the threaded hole 632, the first positioning hole 612 and the second positioning hole 621 on the positioning cover 631 in sequence and then cooperates with the nut 634, thereby realizing the tight connection and fixation of the first half ring 420 and the second half ring 430.

[0104] During the installation process, the positioning cover 631 is threadedly connected to the protrusion 611 on the first fixing plate 610 to achieve accurate alignment between the first fixing plate 610 and the second fixing plate 620. Then, the bolt 633 is passed through the threaded hole 632, the first positioning hole 612, and the second positioning hole 621 on the positioning cover 631 in sequence and fixed with the nut 634. In this way, the first half ring 420 and the second half ring 430 are tightly connected together to form a complete sealing structure, so that the connection between the first half ring 420 and the second half ring 430 is more stable and reliable and not easy to loosen.

[0105] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes 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 one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples. The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A leak-proof PE pipe for municipal water supply, characterized in that: include: A pipeline body, comprising a first pipeline (100) and a second pipeline (200); A connection structure (300) comprises a joint (310) arranged on the first pipe (100) and a groove (320) arranged on the second pipe (200), wherein the joint (310) and the groove (320) are connected via threads; A sealing structure, arranged at the connection structure (300), for sealing the connection between the first pipe (100) and the second pipe (200); The first pipe (100) and the second pipe (200) are connected to form a mounting groove (330), and the sealing structure is arranged in the mounting groove (330).

2. The anti-leakage PE pipe for municipal water supply according to claim 1, characterized in that: The sealing structure comprises: A sealing ring (400) is disposed on the mounting groove (330); A collar (410) comprising a first half-ring (420) and a second half-ring (430); An adjusting member (500), one end of which is connected to one end of the first half ring (420), and the other end of which is connected to one end of the second half ring (430); A fixing member (600), one end of which is connected to the other end of the first half ring (420), and the other end of which is connected to the other end of the second half ring (430); The adjusting member (500) is connected to the first half ring (420) and the second half ring (430) via fasteners.

3. The anti-leakage PE pipe for municipal water supply according to claim 2, characterized in that: The adjusting member (500) comprises: An outer sleeve (510) having a movable groove (511) disposed therein; An inner telescopic member (520), one end of which extends into the movable groove (511) and forms a telescopic structure with the outer sleeve (510), and the other end of which is connected to the second half ring (430); A sliding sheet (530) is disposed in the movable groove (511) and is capable of sliding in the movable groove (511); An elastic component (540) comprises a first spring (541) and a second spring (542) arranged on both sides of the sliding sheet (530); The two ends of the first spring (541) are respectively connected to the sliding sheet (530) and the inner telescopic member (520), and the two ends of the second spring (542) are respectively connected to the sliding sheet (530) and the movable groove (511).

4. The anti-leakage PE pipe for municipal water supply according to claim 3, characterized in that: The inner telescopic member (520) comprises: A connecting seat (521), wherein mounting ears (522) are provided on both sides of the connecting seat (521), and threaded holes (632) are provided on the mounting ears (522); A guide rod (523), one end of which is connected to the connecting seat (521), and a plurality of guide rods (523) are provided; A connecting block (524) is disposed in the movable groove (511) and is capable of sliding in the movable groove (511); one end of the connecting block (524) is connected to the first spring (541), and the other end is connected to the guide rod (523); Wherein, the outer sleeve (510) is provided with a plurality of through holes adapted to the guide rods (523).

5. The anti-leakage PE pipe for municipal water supply according to claim 4, characterized in that: The through hole is provided with a mounting frame (526), ​​a linear bearing (527) is provided inside the mounting frame (526), ​​and the guide rod (523) passes through the linear bearing (527) and cooperates with the linear bearing (527).

6. The anti-leakage PE pipe for municipal water supply according to claim 5, characterized in that: The fixing member (600) comprises: A first fixing plate (610) is disposed on the first half ring (420), wherein the first fixing plate (610) is provided with a protrusion (611), and the protrusion (611) is provided with a first positioning hole (612) penetrating the first fixing plate (610); A second fixing plate (620) is disposed on the second half ring (430), and a second positioning hole (621) is disposed on the second fixing plate (620); A connecting assembly (630) includes a positioning cover (631) threadedly connected to the protrusion (611), a threaded hole (632) provided on the positioning cover (631), and a bolt (633) and a nut (634); The bolt (633) passes through the threaded hole (632), the first positioning hole (612), and the second positioning hole (621) on the positioning cover (631) in sequence and then cooperates with the nut (634).

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