Environment-friendly corrosion-resistant solid-wall pipe

Abstract

The invention discloses an environment-friendly corrosion-resistant solid-wall pipe, and relates to the technical field of engineering supplies, the environment-friendly corrosion-resistant solid-wall pipe comprises an outer sleeve, a plurality of pieces of heat preservation cotton are annularly arranged on the inner ring of the outer sleeve at equal intervals, the inner rings of the heat preservation cotton are slidably connected with a built-in pipe, and a plurality of sealing rings are spirally arranged on the outer ring of the built-in pipe; according to the environment-friendly corrosion-resistant solid-wall pipe, after the position of the sealing ball descends, the two ends of the air guide groove are communicated, certain air permeability is achieved, when water in the built-in pipe is unfrozen, the water in the built-in pipe is unfrozen, the water in the built-in pipe is unfrozen, the water in the built-in pipe is unfrozen, and the water in the built-in pipe is unfrozen. When the gas is partially discharged, the unfrozen water can drive the sealing ball to movably contact with the sealing ring again due to gravity to block the narrow section in the middle of the sealing ring, the water hammer effect can be effectively solved through the mode, and the service life of a pipeline system is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of engineering products, in particular to an environmentally friendly corrosion-resistant solid wall pipe. Background Art

[0002] Solid wall pipe is the full name of hard vinyl chloride pipe for building drainage. The main raw material is PVC resin. It is mainly used for internal and external drainage systems of buildings. It generally has corrosion resistance and a long service life when used normally. Most of the existing solid wall pipes are used in series or parallel.

[0003] Existing solid-wall pipes are prone to cracking and damage when encountering cold weather. When the high-pressure water pipe encounters low temperature, the high-pressure gas will be compressed. When the valve on the solid-wall pipe is closed, the water inside the solid-wall pipe is still. When it encounters low temperature, it freezes. Then when the ice melts, the gas thaws and expands rapidly, impacting the inner wall of the water pipe, thereby generating radial impact inside the water pipe to damage the water pipe. Therefore, the existing solution mostly adopts a layer of thermal insulation cotton fixedly wrapped around the water pipe with glue. However, the thermal insulation cotton ages during the later use, thereby making the sealing effect worse. In the later period, the pipeline maintenance is not carried out regularly, and the cold-proof performance of the pipeline is worse. Different thermal insulation cotton needs to be used for different pipelines. When the pipeline needs to be replaced, the thick thermal insulation cotton on the pipeline is not conducive to disassembly. For this reason, we propose an environmentally friendly and corrosion-resistant solid-wall pipe. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly corrosion-resistant solid wall pipe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly, corrosion-resistant solid-wall pipe, comprising an outer sleeve, the inner ring of the outer sleeve is equidistantly provided with a plurality of thermal insulation cottons in a ring shape, the inner rings of the plurality of thermal insulation cottons are slidably connected with an inner pipe, the outer ring of the inner pipe is spirally provided with a plurality of closed rings, a sealing ring is slidably installed in the middle of the inner ring of each closed ring, a rotating rod is fixedly connected in the middle of the sealing ring, a sealing ball is slidably connected to the rotating rod, a pair of inclined blocks are fixedly connected to the bottom of the rotating rod, a leak-proof plate is installed between one ends of the two inclined blocks, and the bottom of the sealing ball is communicated with the inside of the inner pipe.

[0006] Preferably, both ends of each thermal insulation cotton are fixedly installed with a sliding sleeve, the sliding sleeve and the closed ring are in sliding contact, the outer sleeve and the inner tube are slidably connected through the sliding sleeve, and the outer sleeve and the inner tube form a cutting area L after sliding.

[0007] Preferably, the inner wall of the outer sleeve is connected with a connecting strip toward the axial direction of each closed circle, one end of the connecting strip is slidably connected with a driving sleeve, one end of the inner wall of the driving sleeve is fixedly connected with a second spring, one end of the second spring is fixedly connected to the rotating rod, a clamping ball is fixedly installed on the inner ring of the driving sleeve, a spiral groove is provided on the outer ring at the top of the rotating rod, the rotating rod is rotatably connected to the driving sleeve through the spiral groove, and the inner wall of the outer sleeve is provided with resisting semi-circular balls on both sides of each closed circle, the resisting semi-circular balls drive the driving sleeve to descend, drive the clamping ball to descend and cause the rotating rod to rotate.

[0008] Preferably, the rotation angle of the rotating rod is 180 degrees, and the angle formed between the extension lines of the same ends of the two inclined blocks is 45 degrees, and a water outlet hole is provided on the leakage blocking plate.

[0009] Preferably, each of the rotating rods is provided with an air guide groove, wherein one end of the air guide groove is connected to the outside with the sealing ring in the middle, and the other end is located below the sealing ring and connected to the inside of the built-in tube.

[0010] Preferably, the outer sleeve is provided with a rotating pin beside the top of each interfering hemisphere, the inner wall of the rotating pin is connected with a threaded rotating cylinder through threaded rotation, and the inner wall of the outer sleeve is fixed with a sealing member for sealing one end of the air guide groove.

[0011] Preferably, the sealing member includes a first fixed block arranged on the inner wall of the outer sleeve and close to each abutting hemisphere, the first fixed block is connected to a piston rod, the outer ring of the piston rod is sleeved with a first spring, one end of the first spring is abutted against the first fixed block, the other end of the first spring is connected to a second fixed block, a movable plate is fixedly installed at one end of the piston rod, an elastic piston cylinder is fixedly installed on the side of the movable plate facing the closed circle, and the elastic piston cylinder is horizontally aligned with one end of the air guide groove.

[0012] Preferably, a plurality of water guide plates are fixedly connected to the inner wall valley of the built-in tube, and the length of the built-in tube is equal to the length of the outer casing.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When the weather is cold, the water inside the built-in tube of the present invention is frozen, and the volume of the internal gas is reduced. When the volume is reduced, suction is formed inside the built-in tube, which drives the sealing ring and the sealing ball to reset. The sealing ring is still in a sealed state when it leaves the narrow section in the middle of the closed ring and is located below the middle of the closed ring. After the position of the sealing ball drops, the two ends of the air guide groove are connected, which has a certain air permeability. When the water inside the built-in tube thaws, the high-pressure gas will flow out along the air guide groove to prevent the built-in tube from being cracked by impact. When the gas is partially discharged, the thawed water will drive the sealing ball to move and contact the sealing ring again due to gravity, and the narrow section in the middle of the closed ring is blocked. In this way, the water hammer effect can be effectively solved, and the service life of the pipeline system can be improved.

[0015] When water leakage occurs in the pipeline, the turn pin can be rotated manually using a tool. The rotation of the turn pin drives the threaded drum to rise. During the rising process of the threaded drum, the piston rod is driven to move toward the second fixed block, so that the first spring is compressed, and the movable plate moves with the piston rod. The end of the elastic piston cylinder gradually approaches one end of the air guide groove to prevent water leakage caused by wear of mechanical parts during long-term use. In addition, the device is relatively simple to disassemble and has strong performance in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure between the outer sleeve and the inner tube of the present invention;

[0018] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0020] Figure 5 For the present invention Figure 2 Another perspective structural diagram of ;

[0021] Figure 6 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0022] Figure 7 It is a schematic diagram of the matching structure of the driving sleeve, the rotating rod and the sealing ball of the present invention;

[0023] Figure 8 It is a schematic diagram of the installation method of the present invention.

[0024] In the figure: 1-outer sleeve; 101-resistance hemisphere; 2-insulation cotton; 3-sliding sleeve; 4-water guide plate; 5-rotating pin; 6-internal tube; 7-closing ring; 701-sealing ring; 8-moving plate; 9-elastic piston cylinder; 10-driving sleeve; 1001-card ball; 11-connecting strip; 12-threaded rotating cylinder; 13-piston rod; 14-first fixed block; 15-first spring; 16-second fixed block; 17-second spring; 18-rotating rod; 1801-spiral groove; 19-sealing ball; 20-air guide groove; 21-tilted block; 22-leakage-blocking plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-8, the present invention provides a technical solution: an environmentally friendly corrosion-resistant solid wall pipe, comprising an outer sleeve 1, wherein the inner ring of the outer sleeve 1 is equidistantly provided with a plurality of heat-insulating cottons 2 in an annular shape, wherein the inner rings of the plurality of heat-insulating cottons 2 are slidably connected with an inner tube 6, wherein the outer ring of the inner tube 6 is spirally provided with a plurality of closed rings 7, wherein a sealing ring 701 is slidably installed in the middle of the inner ring of each closed ring 7, wherein a rotating rod 18 is fixedly connected in the middle of the sealing ring 701, a sealing ball 19 is slidably connected on the rotating rod 18, a pair of inclined blocks 21 are fixedly connected at the bottom of the rotating rod 18, a leak-blocking plate 22 is installed between one end of the two inclined blocks 21, the bottom of the sealing ball 19 is communicated with the inside of the inner tube 6, and an air guide groove 20 is provided on each of the rotating rods 18, wherein the air guide groove 20 is communicated with the outside world at one end with the sealing ring 701 in the middle, and the other end is located below the sealing ring 701 and communicated with the inside of the inner tube 6;First, when installing the outer sleeve 1 and the inner tube 6, the outer sleeve 1 is slid along the port of the outer sleeve 1 until the inner tube 6 and the outer sleeve 1 are flush and stopped, and then one end of the inner tube 6 is installed in the pipeline system, and one end of the inner tube 6 is connected to the flange or directly connected in series with another inner tube 6. When high-pressure water is passed into the inner tube 6, the high-pressure gas will drive the sealing ball 19 to slide along the rotating rod 18, so that the sealing ball 19 stops when it contacts the narrow section in the middle of the closing ring 7, and the narrow section of the closing ring 7 is closed, so that the outer sleeve 1 is When the sleeve 1 and the built-in tube 6 are used together, they are in a sealed state to prevent water leakage. At the same time, the outer ring of the sealing ball 19 contacts the sealing ring 701 during the activity to produce the sealing effect, and the sealing ring 701 is supported and arched. The sealing ring 701 has a certain elasticity, which can effectively assist the sealing ball 19 to reset and prevent the sealing ball 19 from being stuck in the narrow section in the middle of the closing ring 7 after being lifted. The two inclined blocks 21 directly have an angle, and the two inclined blocks 21 form an eight-shaped or trumpet-shaped shape. The leak-proof plate 22 is located at the end of the inclined block 21 with the shortest distance. When high-pressure water flows through the inner tube 6, the water will contact the surface of the inclined block 21 near the wall of the inner tube 6, and form a confluence between the two inclined blocks 21 and the leakage-blocking plate 22, so that part of the water will form a wave flow to impact the activity of the sealing ball 19, so as to achieve the purpose of rapid response and prevent the sealing ball 19 from leaking due to the lack of time to seal the sealing ring 7. When the weather is cold, the water inside the inner tube 6 is frozen, and the volume of the internal gas is reduced. When the volume is reduced, suction is formed inside the inner tube 6, which will drive the sealing ring 701 The sealing ring 701 is still in a sealed state after leaving the narrow section in the middle of the sealing ring 7 and being located below the middle of the sealing ring 7. After the sealing ball 19 is lowered, the two ends of the air guide groove 20 are connected, which has a certain air permeability. When the water inside the built-in tube 6 thaws, the high-pressure gas will flow out along the air guide groove 20 to prevent the built-in tube 6 from being cracked by impact. At the same time, when the gas is partially discharged, the thawed water will re-drive the sealing ball 19 to move and contact the sealing ring 701 due to gravity, and block the narrow section in the middle of the closing ring 7.

[0027] In addition, when the device is used, the water hammer effect can be effectively prevented. When the valve is closed too quickly, a water shock wave is generated due to the inertia of the pressure water flow. The force generated by the water shock wave will cause the sealing ring 701 and the sealing ball 19 to return to their original positions, thereby effectively eliminating the destructive effect caused by the water hammer.

[0028] When the inner tube 6 and the outer tube 1 are placed horizontally, when thawing water, the gas will first leave from the closed circle 7 located at the highest point.

[0029] Furthermore, each of the two ends of the thermal insulation cotton 2 is fixedly installed with a sliding sleeve 3, the sliding sleeve 3 and the closed ring 7 are in sliding contact, the outer sleeve 1 and the inner tube 6 are slidably connected through the sliding sleeve 3, and the outer sleeve 1 and the inner tube 6 form a cutting area L after sliding. Based on the above, when the thermal insulation cotton 2 is put on the sliding sleeve 3, the closed ring 7 will not swing between the inner tube 6 and the outer sleeve 1, so that the outer sleeve 1 and the inner tube 6 become more stable. When the device is installed, the inner tube 6 and the outer sleeve 1 need to slide a certain distance such as Figure 8 As shown, this will determine the orientation of the two tilted blocks 21, thereby effectively driving the movement of the sealing ball 19 and determining the direction of the water flow. The trimming area L can be selected for trimming or retention according to the actual situation.

[0030] Furthermore, the inner wall of the outer sleeve 1 is connected with a connecting strip 11 toward the axial direction of each closed circle 7, one end of the connecting strip 11 is slidably connected with a driving sleeve 10, one end of the inner wall of the driving sleeve 10 is fixedly connected with a second spring 17, one end of the second spring 17 is fixedly connected to a rotating rod 18, a card ball 1001 is fixedly installed on the inner ring of the driving sleeve 10, a spiral groove 1801 is provided on the top outer ring of the rotating rod 18, and the rotating rod 18 is rotatably connected to the driving sleeve 10 through the spiral groove 1801, and the inner wall of the outer sleeve 1 is provided with a resisting semicircular ball 101 on both sides of each closed circle 7, the resisting semicircular ball 101 drives the driving sleeve 10 to descend, drives the card ball 1001 to descend, and causes the rotating rod 18 to rotate, and when there is a certain distance between the inner tube 6 and the outer sleeve 1, the outer sleeve 1 The internal semi-circular ball 101 will first contact the top of the driving sleeve 10. When the driving sleeve 10 is squeezed by the semi-circular ball 101, it will tend to descend. During this process, the driving sleeve 10 slides linearly on the connecting strip 11. When the semi-circular ball 101 continues to move near the axis at the top of the driving sleeve 10, the driving sleeve 10 begins to descend. During the descent of the card ball 1001, the rotating rod 18 is driven to rotate. When the semi-circular ball 101 is located at the axis of the driving sleeve 10, the card ball 1001 is located at the lowest point of the spiral groove 1801, so that the rotation angle of the rotating rod 18 is 180 degrees. The positions of the two inclined blocks 21 are swapped, so that the positions of the leakage shielding plate 22 are swapped. After the leakage shielding plate 22 is swapped, it is convenient for high-pressure water to reversely flush the residue thereon to prevent residual sediment.

[0031] The outer sleeve 1 is provided with a rotating pin 5 beside the top of each of the abutting hemispherical balls 101, and the inner wall of the rotating pin 5 is connected with a threaded rotating cylinder 12 by threaded rotation. A plugging piece for plugging one end of the air guide groove 20 is fixed to the inner wall of the outer sleeve 1. When the sealing ball 19 slides on the rotating rod 18 for a long time, it will wear out due to inevitable factors (water impurities mixed in it, friction damage), making the sealing ball 19 less effective in sealing the air guide groove 20, causing water leakage between the outer sleeve 1 and the built-in tube 6. Therefore, the plugging piece can be remedied by technical means:

[0032] Specifically, the blocking member includes a first fixed block 14 which is arranged on the inner wall of the outer sleeve 1 and close to each abutting semicircular ball 101, the first fixed block 14 is connected with a piston rod 13, the outer ring of the piston rod 13 is sleeved with a first spring 15, one end of the first spring 15 is abutted against the first fixed block 14, the other end of the first spring 15 is connected with a second fixed block 16, one end of the piston rod 13 is fixedly installed with a movable plate 8, the movable plate 8 is fixedly installed with an elastic piston cylinder 9 on the side facing the closed circle 7, the elastic piston cylinder 9 is horizontally aligned with one end of the air guide groove 20, when movement occurs between the outer sleeve 1 and the built-in tube 6, the abutting semicircular ball 101 contacts the driving sleeve 10, and the piston rod 13 moves with the abutting semicircular ball 101, when water leakage occurs in the pipeline When the rotating pin 5 is rotated, the threaded rotating cylinder 12 is driven to rise during the rotation of the rotating pin 5. During the rising process of the threaded rotating cylinder 12, the piston rod 13 is driven to move toward the second fixed block 16, so that the first spring 15 is compressed, and the movable plate 8 moves with the piston rod 13, and the end of the elastic piston cylinder 9 gradually approaches one end of the air guide groove 20. If, after the positions of the outer sleeve 1 and the inner tube 6 are determined, there is still a certain distance between the elastic piston cylinder 9 and the air guide groove 20, and there is no water leakage in the pipeline, there is no need to rotate the rotating pin 5. If it is detected that water flows out from the rotating rod 18, the rotating pin 5 can be manually rotated to make the elastic piston cylinder 9 contact with the air guide groove 20, so as to block the air guide groove 20 and prevent water leakage.

[0033] The inner wall valley of the built-in tube 6 is fixedly connected with a plurality of water guide plates 4, and the length of the built-in tube 6 is equal to the length of the outer tube 1, and the water guide plates 4 are convenient for stabilizing the direction of water flow.

[0034] 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.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly, corrosion-resistant solid wall pipe, comprising an outer sleeve (1), characterized in that: The inner ring of the outer sleeve (1) is equidistantly provided with a plurality of heat-insulating cottons (2) in a ring shape, the inner rings of the plurality of heat-insulating cottons (2) are slidably connected to an inner tube (6), the outer ring of the inner tube (6) is spirally provided with a plurality of closed rings (7), a sealing ring (701) is slidably installed in the middle of the inner ring of each closed ring (7), a rotating rod (18) is fixedly connected in the middle of the sealing ring (701), a sealing ball (19) is slidably connected to the rotating rod (18), a pair of inclined blocks (21) are fixedly connected to the bottom of the rotating rod (18), a leak-blocking plate (22) is installed between one end of the two inclined blocks (21), and the bottom of the sealing ball (19) is communicated with the inside of the inner tube (6).

2. The environmentally friendly corrosion-resistant solid wall pipe according to claim 1, characterized in that: Each of the two ends of the thermal insulation cotton (2) is fixedly mounted with a sliding sleeve (3), the sliding sleeve (3) and the closed ring (7) are in sliding contact, the outer sleeve (1) and the inner tube (6) are slidably connected via the sliding sleeve (3), and the outer sleeve (1) and the inner tube (6) form a cutting area L after sliding.

3. The environmentally friendly corrosion-resistant solid wall pipe according to claim 2, characterized in that: The inner wall of the outer sleeve (1) is connected with a connecting strip (11) in the axial direction of each closed ring (7), and one end of the connecting strip (11) is slidably connected with a driving sleeve (10). One end of the inner wall of the driving sleeve (10) is fixedly connected with a second spring (17), and one end of the second spring (17) is fixedly connected with a rotating rod (18). A clamping ball (1001) is fixedly installed on the inner ring of the driving sleeve (10), and a spiral groove (1801) is provided on the top outer ring of the rotating rod (18). The rotating rod (18) is rotatably connected to the driving sleeve (10) through the spiral groove (1801). The inner wall of the outer sleeve (1) is provided with a resisting semicircular ball (101) on both sides of each closed ring (7). The resisting semicircular ball (101) drives the driving sleeve (10) to descend, drives the clamping ball (1001) to descend, and causes the rotating rod (18) to rotate.

4. The environmentally friendly corrosion-resistant solid wall pipe according to claim 1, characterized in that: The rotation angle of the rotating rod (18) is 180 degrees, and the angle formed between the extension lines of the same ends of the two inclined blocks (21) is 45 degrees. A water outlet hole is provided on the leakage blocking plate (22).

5. The environmentally friendly corrosion-resistant solid wall pipe according to claim 2, characterized in that: Each of the rotating rods (18) is provided with an air guide groove (20), wherein one end of the air guide groove (20) is connected to the outside with the sealing ring (701) in the middle, and the other end is located below the sealing ring (701) and is connected to the inside of the built-in tube (6).

6. The environmentally friendly corrosion-resistant solid wall pipe according to claim 5, characterized in that: The outer sleeve (1) is provided with a rotating pin (5) beside the top of each abutting hemispherical ball (101), the inner wall of the rotating pin (5) is connected to a threaded rotating cylinder (12) by means of a thread, and a sealing member for sealing one end of the air guide groove (20) is fixed to the inner wall of the outer sleeve (1).

7. The environmentally friendly corrosion-resistant solid wall pipe according to claim 6, characterized in that: The blocking member comprises a first fixed block (14) arranged on the inner wall of the outer sleeve (1) and close to each abutting hemispherical ball (101); the first fixed block (14) is connected to a piston rod (13); the outer ring of the piston rod (13) is sleeved with a first spring (15); one end of the first spring (15) abuts against the first fixed block (14); the other end of the first spring (15) is connected to a second fixed block (16); a movable plate (8) is fixedly mounted on one end of the piston rod (13); an elastic piston cylinder (9) is fixedly mounted on the side of the movable plate (8) facing the closing ring (7); the elastic piston cylinder (9) is horizontally aligned with one end of the air guide groove (20).

8. The environmentally friendly corrosion-resistant solid wall pipe according to claim 1, characterized in that: The inner wall valley of the built-in tube (6) is fixedly connected to a plurality of water guide plates (4), and the length of the built-in tube (6) is equal to the length of the outer tube (1).

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