CN109458514B - Sound insulation and noise reduction drain pipe - Google Patents
Sound insulation and noise reduction drain pipe Download PDFInfo
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- CN109458514B CN109458514B CN201811652080.3A CN201811652080A CN109458514B CN 109458514 B CN109458514 B CN 109458514B CN 201811652080 A CN201811652080 A CN 201811652080A CN 109458514 B CN109458514 B CN 109458514B
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- drain pipe
- fixed
- pipe body
- pipe
- silencing
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- 238000009413 insulation Methods 0.000 title claims abstract description 21
- 230000009467 reduction Effects 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000030279 gene silencing Effects 0.000 claims abstract description 43
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 43
- 239000000945 filler Substances 0.000 claims description 27
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 19
- 229920001971 elastomer Polymers 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229920000877 Melamine resin Polymers 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 6
- -1 tetrabromophthalic anhydride ester Chemical class 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 5
- 229920001038 ethylene copolymer Polymers 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 19
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 30
- 150000001875 compounds Chemical class 0.000 description 8
- 230000002238 attenuated effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The invention discloses a sound-insulating and noise-reducing drain pipe which is characterized by comprising drain pipe bodies and a water pipe connecting piece, wherein the water pipe connecting piece is used for connecting and fixing the two drain pipe bodies; the drain pipe body comprises an outer layer pipe body, a silencing pipe and an inner layer pipe body which are sequentially arranged from outside to inside; the water pipe connecting piece comprises a fixed bearing device and a pressing device arranged on the fixed bearing device; the fixing bearing device comprises a fixing plate, the supporting plate is arranged parallel to the fixing plate, a positioning column matched with the positioning cylinder is fixed on the lower surface of the supporting plate, and the positioning column is inserted into the positioning cylinder; the compressing device comprises two threaded rods, the threaded rods are installed on the connecting cylinder in a penetrating mode through second installation holes, and gears, first arc plates and second arc plates are fixed on the surfaces of the two threaded rods. The invention ensures that the drain pipe has excellent sound insulation and shock absorption effects through double improvements on the drain pipe body and the water pipe connecting piece.
Description
Technical Field
The invention belongs to the technical field of building drainage pipes, and particularly relates to a sound-insulation and noise-reduction drainage pipe.
Background
Noise and vibration are important factors influencing the health of the living environment, along with technological progress and importance of the living health elements, the improvement requirement on the building acoustic environment is increasingly focused by society and users, and 3A high-requirement houses, green buildings, healthy houses, ecological buildings and the like all provide index control requirements on the building acoustic environment, but in the implementation link, the design and construction implementation of the building acoustic environment still lack corresponding technical support.
The noise generated by the noise of the drainage pipeline used for the building is mainly caused by 3 forms, namely the noise generated by the vibration of the pipeline caused by the impact of the water flow in the drainage pipeline on the pipe wall, the noise generated by the rapid air compression caused by the water flow in the drainage pipeline and the sound of the water flowing in the drainage pipeline. Therefore, in designing a noise reduction pipe, in addition to taking sound insulation into consideration, reducing noise generated by the pipe due to impact vibration is also a necessary measure for noise reduction of the pipe.
At present, the noise problem generated in the drainage process is solved, and two approaches are mainly adopted: firstly, starting from a building structure, a pipeline well or a wall body is arranged in a hidden manner like abroad for casting, so that the problem of noise pollution of a drain pipe can be fundamentally solved, but the difficulty is relatively high due to the traditional building design and matched construction; secondly, through improving the structure and the material of tubular product, effectively reduce the noise's of drainage in-process production to a certain extent. Along with the rapid development of industrial buildings and residential buildings, the demand of drainage pipes is greatly increased, and the demands of people on living environments are also higher and higher, however, the existing plastic drainage pipes currently generally adopt a single-layer structure, the inner wall is smoother, the water flow speed in the pipes is high, and the noise generated by the water flow colliding with the pipes affects the rest of people.
Disclosure of Invention
The invention aims to provide a sound-insulating and noise-reducing drain pipe, which solves the following technical problems in the prior art: the existing building drain pipe is subjected to noise reduction improvement treatment from a single drain pipe body, so that the noise reduction effect is not ideal, and the living requirements cannot be met.
The aim of the invention can be achieved by the following technical scheme:
the sound-proof and noise-reducing drain pipe is characterized by comprising a drain pipe body and a water pipe connecting piece, wherein the water pipe connecting piece is used for connecting and fixing the two drain pipe bodies;
the drain pipe body comprises an outer layer pipe body, a silencing pipe and an inner layer pipe body which are sequentially arranged from outside to inside, wherein a trapezoid groove is formed in the inner wall of the outer layer pipe body, the silencing pipe is a cylindrical shell, trapezoid raised strips are fixed on the outer wall of the silencing pipe, a plurality of filling holes are uniformly distributed on the surface of the silencing pipe, and special silencing materials are filled in the filling holes; the inner layer pipe body is fixed on the inner wall of the silencing pipe, and spiral bulges are arranged on the inner wall of the inner layer pipe body;
the water pipe connecting piece comprises a fixed bearing device and a pressing device arranged on the fixed bearing device;
the fixing bearing device comprises a fixing plate, a positioning cylinder is vertically fixed on the surface of the fixing plate, a damping spring is sleeved on the positioning cylinder, one end of the damping spring is fixed on the upper surface of the fixing plate, the other end of the damping spring is fixed on the lower surface of a supporting plate, the supporting plate is parallel to the fixing plate, a positioning column matched with the positioning cylinder is fixed on the lower surface of the supporting plate, and the positioning column is inserted into the positioning cylinder; the upper surface of the supporting plate is fixedly connected with a connecting cylinder through a reinforcing rib, a layer of rubber buffer pad is fixed on the inner wall of the connecting cylinder, and two second mounting holes are formed in the surfaces of the connecting cylinder and the rubber buffer pad;
the compressing device comprises two threaded rods, the threaded rods are installed on the connecting cylinder in a penetrating mode through second installation holes, gears, a first arc-shaped plate and a second arc-shaped plate are fixed on the surfaces of the threaded rods, a rocker is fixed at the end of one threaded rod, the two threaded rods are meshed with the gears, the first arc-shaped plate and the second arc-shaped plate are arranged oppositely, and a layer of sealing cotton is fixed on the surfaces of the first arc-shaped plate and the second arc-shaped plate.
Further, the trapezoid groove is axially arranged parallel to the outer layer pipe body, and the trapezoid groove is matched with the trapezoid raised line.
Further, first mounting holes are formed in four top corners of the surface of the fixing plate, and bolts penetrate through the first mounting holes to fix the fixing plate on the bottom surface or the wall surface.
Further, the supporting plate, the reinforcing ribs and the connecting cylinder are integrally formed, and the included angle between the reinforcing ribs and the supporting plate is 55-60 degrees.
Further, the connecting cylinder is in clearance fit with the outer layer pipe body.
Further, the rubber cushion pad is made of natural rubber.
Further, the inner wall of connecting cylinder is fixed with two square sand grip along vertical direction, square sand grip sets up in the outside of two second mounting holes, square through-hole has all been opened on the surface of first arc and second arc, square through-hole and square sand grip cooperation.
Further, the threaded rod is matched with the second mounting hole, and the threaded rod is mounted on the connecting cylinder in a penetrating mode through the bearing.
Further, the side surfaces of the first arc-shaped plate and the second arc-shaped plate are respectively fixed with a connecting plate, the surfaces of the connecting plates are provided with threaded through holes, the threaded through holes are matched with the threaded rods, and the threaded directions of the threaded through holes on the first arc-shaped plate and the second arc-shaped plate are opposite.
Further, the special silencing material is prepared from the following main raw materials in parts by weight: 10-15 parts of ethylene-acetic acid-ethylene copolymer, 30-40 parts of filler, 6-9 parts of melamine foam, 3-5 parts of composite rare earth oxide, 5-8 parts of organosilicon pressure-sensitive adhesive, 1-3 parts of auxiliary agent, 0.5-1 part of N-cyclohexyl-2-benzothiazolyl sulfenamide and 0.5-1 part of tetrabromophthalic anhydride ester;
the filler is compounded by carbon black, barium sulfate, talcum powder and calcium carbonate according to the mass ratio of 10:4-6:1-2:5-8;
the composite rare earth oxide consists of nano Ce 2 O 3 、La 2 O 3 、Y 2 O 3 、Er 2 O 3 According to the ratio of 1:0.3-0.4: the weight ratio of 0.5-0.7:1.1-1.2;
the special silencing material is prepared by the following steps:
step S1, drying EVA for 6-10 hours at 85 ℃;
s2, adding EVA into an internal mixer at 160 ℃, adding acrylic resin and N-cyclohexyl-2-benzothiazolyl sulfenamide for blending modification, and extruding and granulating after the temperature of a roller is 160-168 ℃ before and 160-168 ℃ after the temperature of the roller is 160-168 ℃ during mixing, so as to obtain modified EVA;
s3, melting and blending the modified EVA, the filler, the melamine foam, the composite rare earth oxide, the auxiliary agent and the tetrabromophthalic anhydride ester in a kneader uniformly, and extruding and granulating by a double-screw extruder to obtain the silencing material; wherein the temperature of each section of the extruder is 135 ℃, 155 ℃, 170 ℃ and 165 ℃;
step S4, after the silencing pipe 12 is coated on the inner pipe body 13, uniformly mixing the silencing material and the organic silicon pressure-sensitive adhesive, filling the mixture into the filling holes 1202 of the silencing pipe 12, and applying a pressure of 0.1MPa to complete filling of the special silencing material into the filling holes 1202.
The invention has the beneficial effects that:
(1) The connecting device is simple in structure and easy to operate, the connecting and fixing of the drain pipe body and the water pipe connecting piece can be completed through rotating the rocker, the arc plate can be used for pressing the drain pipe body, the sealing cotton on the surface of the arc plate is arranged, and the sealing ring is in sealing clamping connection with the inner wall of the connecting cylinder, so that the connecting position of the pipeline can be effectively sealed, the water in the pipeline can be prevented from leaking, meanwhile, a layer of rubber buffer pad is fixed on the inner wall of the connecting cylinder, the rubber buffer pad is made of natural rubber, the rubber buffer pad is in direct contact with the outer wall of the outer layer pipe body, the sealing effect can be achieved, the supporting plate and the fixing plate are connected and fixed through the damping springs, the water flow can be effectively buffered and damped, and the noise of the water flow impact pipeline is reduced; in addition, when the drain pipe body is used for draining, water flow spirally descends along the inner wall of the inner pipe body under the guidance of the spiral bulge of the inner pipe body, so that more compact rotary water flow is formed, the noise of a pipeline system is greatly reduced, and the noise caused by the fact that water body impacts the drain pipe due to disordered flow can be better reduced; the invention ensures that the drain pipe has excellent sound insulation and shock absorption effects through double improvements on the drain pipe body and the water pipe connecting piece;
(2) According to the invention, the sound insulation layer of the drain pipe body is filled with the special sound-deadening material, the special sound-deadening material takes the compound filler and the ethylene-acetic acid-ethylene copolymer as main materials, and the melamine foam and the compound rare earth oxide are used as auxiliary materials, the compound filler has high strength, high modulus and certain lubrication effect, the addition of the compound filler can enhance the interaction between the matrix and the filler, the reflection and absorption of the material on incident sound waves can be improved, the sound insulation amount of the material is obviously improved, and meanwhile, the addition of the filler also increases the reflection effect of the sound waves to a certain extent, and the sound insulation performance of the material is enhanced; meanwhile, the composite rare earth oxide has the characteristics of large pore volume and high specific surface area, and when sound waves are transmitted in the material and meet the composite rare earth oxide, the sound waves are reflected on the surface of the composite rare earth oxide and are multiply reflected in the cavity of the composite rare earth oxide, so that the sound energy is attenuated, and the sound insulation performance is improved; the prepared special silencing material has excellent sound insulation effect, and the noise performance of the drain pipe body for isolating water flow can be effectively improved by filling the special silencing material into the sound absorption layer of the drain pipe body.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic view of a sound-insulating noise-reducing drain pipe according to the present invention;
FIG. 2 is a schematic view of a drain body of a sound-insulating noise-reducing drain of the present invention;
FIG. 3 is a schematic view of a drain body of a sound-insulating noise-reducing drain of the present invention;
FIG. 4 is a schematic view of a water pipe connection of a sound-insulating and noise-reducing drain pipe according to the present invention;
FIG. 5 is a schematic view of the fixed carrier of FIG. 4;
FIG. 6 is a schematic view of the compressing apparatus of FIG. 4;
FIG. 7 is a partial schematic view of the structure of FIG. 6;
fig. 8 is a schematic cross-sectional view of a connecting cylinder according to the present invention.
Description of the embodiments
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The sound-insulating and noise-reducing drain pipe comprises a drain pipe body 1 and a water pipe connecting piece 2, wherein the water pipe connecting piece 2 is used for fixedly connecting the two drain pipe bodies 1;
as shown in fig. 2 and 3, the drain pipe body 1 includes an outer layer pipe body 11, a muffler pipe 12 and an inner layer pipe 13 sequentially arranged from outside to inside, a plurality of trapezoid grooves 1101 are formed in the inner wall of the outer layer pipe body 11, the trapezoid grooves 1101 are axially arranged parallel to the outer layer pipe body 11, the muffler pipe 12 is a cylindrical shell, a plurality of trapezoid raised strips 1201 are fixed on the outer wall of the muffler pipe 12, the trapezoid raised strips 1201 are matched with the trapezoid grooves 1101, and the trapezoid raised strips 1201 are matched with the trapezoid grooves 1101, so that the muffler pipe 12 is not easy to slide relatively between the outer layer pipe body 11 and the inner layer pipe body 13, and meanwhile, the fastening effect is enhanced; a plurality of filler holes 1202 are uniformly distributed on the surface of the silencing pipe 12, and special silencing materials are filled in the filler holes 1202, and the special silencing materials are filled in the filler holes 1202, so that an excellent sound insulation effect can be achieved; the inner layer pipe body 13 is fixed on the inner wall of the silencing pipe 12, a spiral bulge 1301 is arranged on the inner wall of the outer layer pipe body 13, and when water is discharged, water flow spirally descends along the inner wall of the inner layer pipe body 13 under the guidance of the spiral bulge 1301 to form more compact rotary water flow, so that the noise of a pipeline system is greatly reduced, and the noise caused by the fact that water body impacts the water discharge pipe due to disordered flow can be better reduced;
as shown in fig. 4, the water pipe connection 2 includes a fixed bearing device 21 and a pressing device 22 mounted on the fixed bearing device 21;
as shown in fig. 5, the fixing and carrying device 21 comprises a fixing plate 2101, wherein first mounting holes 2102 are formed at four top corners of the surface of the fixing plate 2101, and bolts penetrate through the first mounting holes 2102 to fix the fixing plate 2101 on the bottom surface or the wall surface; a plurality of positioning cylinders 2103 are vertically fixed on the surface of the fixing plate 2101, the positioning cylinders 2103 are uniformly distributed on the surface of the fixing plate 2101, damping springs 2104 are sleeved on the positioning cylinders 2103, one ends of the damping springs 2104 are fixed on the upper surface of the fixing plate 2101, the other ends of the damping springs are fixed on the lower surface of a supporting plate 2105, the supporting plate 2105 is parallel to the fixing plate 2101, positioning columns 2106 matched with the positioning cylinders 2103 are fixed on the lower surface of the supporting plate 2105, and the positioning columns 2106 are inserted into the positioning cylinders 2103; the upper surface of the supporting plate 2105 is fixedly connected with a connecting cylinder 2108 through a reinforcing rib 2107, the supporting plate 2105, the reinforcing rib 2107 and the connecting cylinder 2108 are integrally formed, wherein an included angle between the reinforcing rib 2107 and the supporting plate 2105 is 55-60 degrees, and the effect of stable supporting is achieved; the connecting cylinder 2108 is in clearance fit with the outer layer pipe body 11, a layer of rubber cushion pad 2109 is fixed on the inner wall of the connecting cylinder 2108, the rubber cushion pad 2109 is made of natural rubber, and the rubber cushion pad 2109 is in direct contact with the outer wall of the outer layer pipe body 11, so that the buffer can be effectively realized, and the sealing effect can be realized; two second mounting holes 2110 are formed in the surfaces of the connecting cylinder 2108 and the rubber cushion 2109, and the second mounting holes 2110 penetrate through the connecting cylinder 2108 and the cushion rubber cushion 2109 along the axial direction; as shown in fig. 8, two square protruding strips are fixed on the inner wall of the connecting tube 2108 along the vertical direction, the square protruding strips are arranged on the outer sides of the two second mounting holes 2110, and two arc-shaped clamping grooves are formed on the outer sides of the two square protruding strips;
as shown in fig. 6 and 7, the compressing device 22 includes two threaded rods 2201, the threaded rods 2201 are matched with the second mounting holes 2110, the threaded rods 2201 are installed on the connecting barrel 2108 in a penetrating manner through bearings, the surface of each threaded rod 2201 is fixedly provided with a gear 2202, a first arc-shaped plate 2203 and a second arc-shaped plate 2204, a rocker 2205 is further fixed at the end of one threaded rod 2201, the two gears 2202 are meshed, the first arc-shaped plate 2203 and the second arc-shaped plate 2204 are oppositely arranged, connecting plates are fixed on the side surfaces of the first arc-shaped plate 2203 and the second arc-shaped plate 2204, threaded through holes 2207 are formed in the surfaces of the connecting plates, the threaded through holes are matched with the threaded rods 2201, and the threaded directions of the threaded through holes on the first arc-shaped plate 2203 and the second arc-shaped plate 2204 are opposite, so that under the rotation driving of the threaded rods 2201, the square through holes 2207 and the inner walls of the connecting barrel 2108 can move in opposite directions, and limit the square protruding strips 2203 and the second arc-shaped plates 2204 are prevented from being deviated; the surfaces of the first arc-shaped plate 2203 and the second arc-shaped plate 2204 are respectively fixed with a layer of sealing cotton 2206, and when the sealing cotton contacts with the inner wall of the inner layer pipe body 13, the sealing effect is achieved; the surfaces of the first arc-shaped plate 2203 and the second arc-shaped plate 2204 are fixedly provided with the sealing ring 2208, the sealing ring 2208 is matched with an arc-shaped clamping groove formed in the inner wall of the connecting tube 2108, when the double-seal type water draining pipe is used, the end face of the water draining pipe body 1 abuts against the sealing ring 2208, and the sealing ring 2208 is matched with the connecting tube 2108 in a sealing manner, so that a double-seal effect is achieved;
the working principle and the mode of the invention are as follows: when the rocker 2205 is rotated, one of the threaded rods 2201 rotates, the other threaded rod 2201 performs rotational movement with the same speed and opposite direction under the meshing transmission of the two gears 2202, the first arc plate 2203 and the second arc plate 2204 move up and down along the threaded rod 2201 under the action of the thread matching and the limit action of the square convex strips, and the thread directions of the threaded through holes on the first arc plate 2203 and the second arc plate 2204 are opposite, so that the first arc plate 2203 and the second arc plate 2204 move in opposite directions under the driving of the rotation of the threaded rod 2201; when in use, two drain pipe bodies 1 are inserted from two ports of the connecting cylinder 2108, the rocker 2205 is rotated until the first arc-shaped plate 2203 and the second arc-shaped plate 2204 are tightly attached to the inner wall of the inner pipe body 13, and then the connection and fixation of the drain pipe bodies 1 and the water pipe connecting piece 2 can be completed; the connecting device is simple in structure and easy to operate, the connecting and fixing of the drain pipe body and the water pipe connecting piece can be completed through rotating the rocker, the arc plate can be used for pressing the drain pipe body, the sealing cotton on the surface of the arc plate is arranged, and the sealing ring is in sealing clamping with the inner wall of the connecting cylinder, so that the joint of the pipeline can be effectively sealed, water in the pipeline is prevented from leaking, meanwhile, a layer of rubber buffer pad is fixed on the inner wall of the connecting cylinder, the rubber buffer pad is made of natural rubber, the rubber buffer pad is in direct contact with the outer wall of the outer layer pipe body, the sealing effect can be achieved, the supporting plate and the fixing plate are connected and fixed through the damping springs, the impact of water flow on the pipeline can be effectively buffered and damped, and the noise of the water flow impact pipeline is reduced; in addition, when the drain pipe body is used for draining, water flow spirally descends along the inner wall of the inner pipe body under the guidance of the spiral bulge of the inner pipe body, so that more compact rotary water flow is formed, the noise of a pipeline system is greatly reduced, and the noise caused by the fact that water body impacts the drain pipe due to disordered flow can be better reduced; the invention ensures that the drain pipe has excellent sound insulation and shock absorption effects through double improvements on the drain pipe body and the water pipe connecting piece;
the special silencing material filled in the filler hole 1202 is prepared from the following main raw materials in parts by weight: 10-15 parts of ethylene-acetic acid-ethylene copolymer, 30-40 parts of filler, 6-9 parts of melamine foam, 3-5 parts of composite rare earth oxide, 5-8 parts of organosilicon pressure-sensitive adhesive, 1-3 parts of auxiliary agent, 0.5-1 part of N-cyclohexyl-2-benzothiazolyl sulfenamide and 0.5-1 part of tetrabromophthalic anhydride ester;
the filler is compounded by carbon black, barium sulfate, talcum powder and calcium carbonate according to the mass ratio of 10:4-6:1-2:5-8; the compounded filler has high strength, high modulus and certain lubrication effect, the interaction between the matrix and the filler can be enhanced by adding the filler, the reflection and absorption of the material on incident sound waves can be improved, the sound insulation amount of the material is obviously improved, meanwhile, the reflection effect of the sound waves can be increased to a certain extent by adding the filler, and the sound insulation performance of the material is enhanced;
the auxiliary agent comprises a stabilizer, a plasticizer, a smoothing agent, an accelerator and an anti-aging agent;
the composite rare earth oxide is composed of nano Ce 2 O 3 、La 2 O 3 、Y 2 O 3 、Er 2 O 3 The mass ratio is 1:0.3-0.4: the weight ratio of 0.5-0.7:1.1-1.2; the composite rare earth oxide has the characteristics of large pore volume and high specific surface area, and when sound waves propagate in the material and encounter the composite rare earth oxide, the sound waves are reflected on the surface of the composite rare earth oxide and are multiply reflected in the cavity of the composite rare earth oxide, so that the sound energy is attenuated, and the sound insulation performance is improved;
the special silencing material is prepared by the following steps:
step S1, drying EVA for 6-10 hours at 85 ℃;
s2, adding EVA into an internal mixer at 160 ℃, adding acrylic resin and N-cyclohexyl-2-benzothiazolyl sulfenamide for blending modification, and extruding and granulating after the temperature of a roller is 160-168 ℃ before and 160-168 ℃ after the temperature of the roller is 160-168 ℃ during mixing, so as to obtain modified EVA;
wherein, the addition amount of the acrylic resin is 7-10% of the EVA mass;
s3, melting and blending the modified EVA, the filler, the melamine foam, the composite rare earth oxide, the auxiliary agent and the tetrabromophthalic anhydride ester in a kneader uniformly, and extruding and granulating by a double-screw extruder to obtain the silencing material; wherein the extruder temperature at each stage is 135 ℃, 155 ℃, 170 ℃ and 165 ℃;
step S4, after the silencing pipe 12 is coated on the inner pipe body 13, uniformly mixing the silencing material and the organic silicon pressure-sensitive adhesive, filling the mixture into the filling holes 1202 of the silencing pipe 12, and applying a pressure of 0.1MPa to finish filling the special silencing material into the filling holes 1202;
the special silencing material takes the compound filler and the ethylene-acetic acid-ethylene copolymer as the main materials, and takes melamine foam and compound rare earth oxide as the auxiliary materials, wherein the compound filler has high strength, high modulus and certain lubricating effect, and the addition of the compound filler can enhance the interaction between the matrix and the filler, improve the reflection and absorption of the material on incident sound waves, so that the sound insulation amount of the material is obviously improved, and meanwhile, the addition of the filler also increases the reflection effect of the sound waves to a certain extent, and enhances the sound insulation performance of the material; meanwhile, the composite rare earth oxide has the characteristics of large pore volume and high specific surface area, and when sound waves are transmitted in the material and meet the composite rare earth oxide, the sound waves are reflected on the surface of the composite rare earth oxide and are multiply reflected in the cavity of the composite rare earth oxide, so that the sound energy is attenuated, and the sound insulation performance is improved; the prepared special silencing material has excellent sound insulation effect, and the noise performance of the drain pipe body for isolating water flow can be effectively improved by filling the special silencing material into the sound absorption layer of the drain pipe body.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (9)
1. The sound-proof and noise-reducing drain pipe is characterized by comprising a drain pipe body (1) and a water pipe connecting piece (2), wherein the water pipe connecting piece (2) is used for fixedly connecting the two drain pipe bodies (1);
the novel water draining pipe comprises a draining pipe body (1), wherein the draining pipe body comprises an outer layer pipe body (11), a silencing pipe (12) and an inner layer pipe body (13) which are sequentially arranged from outside to inside, a trapezoid groove (1101) is formed in the inner wall of the outer layer pipe body (11), the silencing pipe (12) is a cylindrical shell, trapezoid raised strips (1201) are fixed on the outer wall of the silencing pipe (12), a plurality of filling holes (1202) are uniformly distributed on the surface of the silencing pipe (12), and special silencing materials are filled in the filling holes (1202); the inner layer pipe body (13) is fixed on the inner wall of the silencing pipe (12), and a spiral protrusion (1301) is arranged on the inner wall of the inner layer pipe body (13);
the water pipe connecting piece (2) comprises a fixed bearing device (21) and a pressing device (22) arranged on the fixed bearing device (21);
the fixing bearing device (21) comprises a fixing plate (2101), a positioning cylinder (2103) is vertically fixed on the surface of the fixing plate (2101), a damping spring (2104) is sleeved on the positioning cylinder (2103), one end of the damping spring (2104) is fixed on the upper surface of the fixing plate (2101), the other end of the damping spring is fixed on the lower surface of a supporting plate (2105), the supporting plate (2105) is arranged parallel to the fixing plate (2101), a positioning column (2106) matched with the positioning cylinder (2103) is fixed on the lower surface of the supporting plate (2105), and the positioning column (2106) is inserted into the positioning cylinder (2103); the upper surface of the supporting plate (2105) is fixedly connected with a connecting cylinder (2108) through a reinforcing rib (2107), a layer of rubber buffer pad (2109) is fixed on the inner wall of the connecting cylinder (2108), and two second mounting holes (2110) are formed in the surfaces of the connecting cylinder (2108) and the rubber buffer pad (2109);
the compressing device (22) comprises two threaded rods (2201), the threaded rods (2201) are installed on a connecting barrel (2108) in a penetrating mode through second installation holes (2110), gears (2202), first arc plates (2203) and second arc plates (2204) are fixed on the surfaces of the threaded rods (2201), rocking rods (2205) are fixed at the end of one threaded rod (2201), the two gears (2202) are meshed, the first arc plates (2203) and the second arc plates (2204) are oppositely arranged, and a layer of sealing cotton (2206) is fixed on the surfaces of the first arc plates (2203) and the second arc plates (2204); the special silencing material is prepared from the following main raw materials in parts by weight: 10-15 parts of ethylene-acetic acid-ethylene copolymer, 30-40 parts of filler, 6-9 parts of melamine foam, 3-5 parts of composite rare earth oxide, 5-8 parts of organosilicon pressure-sensitive adhesive, 1-3 parts of auxiliary agent, 0.5-1 part of N-cyclohexyl-2-benzothiazolyl sulfenamide and 0.5-1 part of tetrabromophthalic anhydride ester;
the filler is compounded by carbon black, barium sulfate, talcum powder and calcium carbonate according to the mass ratio of 10:4-6:1-2:5-8;
the composite rare earth oxide consists of nano Ce 2 O 3 、La 2 O 3 、Y 2 O 3 、Er 2 O 3 According to the ratio of 1:0.3-0.4: the weight ratio of 0.5-0.7:1.1-1.2;
the special silencing material is prepared by the following steps:
step S1, drying EVA for 6-10 hours at 85 ℃;
s2, adding EVA into an internal mixer at 160 ℃, adding acrylic resin and N-cyclohexyl-2-benzothiazolyl sulfenamide for blending modification, and extruding and granulating after the temperature of a roller is 160-168 ℃ before and 160-168 ℃ after the temperature of the roller is 160-168 ℃ during mixing, so as to obtain modified EVA;
s3, melting and blending the modified EVA, the filler, the melamine foam, the composite rare earth oxide, the auxiliary agent and the tetrabromophthalic anhydride ester in a kneader uniformly, and extruding and granulating by a double-screw extruder to obtain the silencing material; wherein the temperature of each section of the extruder is 135 ℃, 155 ℃, 170 ℃ and 165 ℃;
step S4, after the silencing pipe 12 is coated on the inner pipe body 13, uniformly mixing the silencing material and the organic silicon pressure-sensitive adhesive, filling the mixture into the filling holes 1202 of the silencing pipe 12, and applying a pressure of 0.1MPa to complete filling of the special silencing material into the filling holes 1202.
2. A sound-and noise-reducing drain pipe according to claim 1, characterized in that the trapezoid groove (1101) is axially arranged parallel to the outer pipe body (11), the trapezoid groove (1101) being fitted with a trapezoid rib (1201).
3. A sound-insulating and noise-reducing drain pipe according to claim 1, wherein the fixing plate (2101) has first mounting holes (2102) at four corners of the surface, and bolts pass through the first mounting holes (1201) to fix the fixing plate (2101) to the bottom surface or the wall surface.
4. A sound-insulating and noise-reducing drain pipe according to claim 1, characterized in that the supporting plate (2105), the reinforcing ribs (2107) and the connecting tube (2108) are integrally formed, and the angle between the reinforcing ribs (2107) and the supporting plate (2105) is 55-60 °.
5. A sound-and noise-reducing drain pipe according to claim 1, characterized in that the connecting cylinder (2108) is in clearance fit with the outer pipe body (11).
6. A sound-and noise-reducing drain pipe according to claim 1, characterized in that the rubber cushion (2109) is made of natural rubber.
7. The sound insulation and noise reduction drain pipe according to claim 1, wherein two square raised strips are fixed on the inner wall of the connecting barrel (2108) along the vertical direction, the square raised strips are arranged on the outer sides of the two second mounting holes (2110), square through holes (2207) are formed in the surfaces of the first arc-shaped plate (2203) and the second arc-shaped plate (2204), and the square through holes (2207) are matched with the square raised strips.
8. A sound and noise reducing drain pipe according to claim 1, wherein the threaded rod (2201) is engaged with the second mounting hole (2110), and the threaded rod (2201) is mounted through the bearing on the connecting cylinder (2108).
9. The sound-insulating and noise-reducing drain pipe according to claim 1, wherein the side surfaces of the first arc plate (2203) and the second arc plate (2204) are both fixed with connecting plates, the surfaces of the connecting plates are provided with threaded through holes, the threaded through holes are matched with the threaded rod (2201), and the threaded directions of the threaded through holes on the first arc plate (2203) and the second arc plate (2204) are opposite.
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| CN201811652080.3A CN109458514B (en) | 2018-12-31 | 2018-12-31 | Sound insulation and noise reduction drain pipe |
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| CN201811652080.3A CN109458514B (en) | 2018-12-31 | 2018-12-31 | Sound insulation and noise reduction drain pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110285273A (en) * | 2019-06-26 | 2019-09-27 | 合肥光聚财建筑装饰工程有限公司 | A kind of sound insulation and noise reduction construction drainage pipe |
| CN113026675B (en) * | 2021-03-25 | 2022-06-03 | 黄河勘测规划设计研究院有限公司 | Non-management and protection integrated silt dam and downstream slope protection layer face construction process thereof |
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Denomination of invention: A soundproof and noise reducing drainage pipe Granted publication date: 20230905 Pledgee: Zhejiang Fuyang Rural Commercial Bank Co.,Ltd. Jinqiao sub branch Pledgor: HANGZHOU FUYANG KEWEI STEEL INDUSTRY CO.,LTD. Registration number: Y2024980032317 |
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