Hollow spiral pipe capable of silencing

Abstract

The utility model discloses a hollow spiral pipe capable of silencing, which relates to the technical field of spiral pipes and comprises an outer pipe and an inner pipe, fixing plates are fixed on the circumferential outer walls of two ends of a pipe body of the inner pipe, piston columns are fixed on the outer walls of the fixing plates, fixing cylinders are fixedly mounted on the inner walls of two ends of a pipe body of the outer pipe, and cavities are formed in the fixing cylinders. A circular plate is arranged in a cavity body of the cavity, a column body at the outer end of the piston column movably penetrates into the cavity body of the cavity, the end of the column body of the piston column is fixedly connected with the surface of the circular plate, and a spring located in the cavity body of the cavity is arranged on the side, away from the piston column, of the circular plate. When water flow and the inner pipe resonate, the piston column moves in the cavity of the fixing cylinder, so that the circular plate extrudes the spring to enable the spring to elastically deform, vibration force generated by the inner pipe is absorbed and counteracted, the damping effect on the inner pipe is achieved, noise generated by resonance of the water pipe is reduced, and the service life of the water pipe is prolonged. And the sound absorption performance of the spiral pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral pipe technical field, concretely is a hollow spiral pipe of sound attenuation. BACKGROUND

[0002] Spiral pipe is mainly applied to tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, city construction, is one of twenty key products of our country development. As liquid delivery: water supply, drainage, sewage treatment engineering, mud transportation, ocean water transportation. As gas delivery: coal gas, steam, liquefied petroleum gas. As structure: as piling pipe, as bridge pipe, wharf pipe, road pipe, building structure pipe, ocean piling pipe etc.

[0003] The utility model discloses a kind of sound attenuation spiral pipes with double-layer wall surface with the publication number CN221402185U of Chinese patent discloses a kind of sound attenuation spiral pipes with double-layer wall surface. The sound attenuation spiral pipe with double-layer wall surface, it includes spiral pipe, spiral pipe both ends are equipped with connecting portion, spiral pipe includes inner tube, inner tube inner side is equipped with spiral rib, inner tube outer portion both sides are equipped with connecting rib, connecting rib outer side is equipped with outer tube, outer tube and inner tube between being equipped with filling layer, the utility model is equipped with spiral rib by inner tube inner side, it is convenient to drive water quantity along spiral rib and flow spirally, reduce the impact of water flow to inner tube inner wall, to reduce the noise generated when draining, by outer tube and inner tube between being equipped with filling layer, it is convenient for filling layer to further eliminate the sound of water flow inside inner tube, play the effect of mute, avoid the trouble of needing to be wrapped outside mute cotton, with higher practical value.

[0004] But the sound attenuation spiral pipe disclosed in above patent still has certain deficiency, it only relies on setting filling layer and setting spiral rib to realize reducing noise to spiral pipe, but the reason of noise of spiral pipe is caused by water flow impact pipe wall, water pipe resonance etc., and the sound attenuation spiral pipe disclosed in above patent cannot solve the problem of water pipe vibration, does not have shock-absorbing structure, therefore sound attenuation effect still needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model is to provide a kind of hollow spiral pipe of sound attenuation to solve the problems raised in above background.

[0006] To achieve the above object, the utility model provides following technical scheme: a hollow spiral pipe of sound elimination, including outer tube and the inner tube of inside of outer tube, the pipe body both ends circumference outer wall of inner tube is fixedly installed with fixed plate, the outer wall of fixed plate is fixedly installed with piston column, the pipe body both ends inner wall of outer tube is fixedly installed with fixed cylinder, the inside of fixed cylinder is equipped with cavity, the cavity is provided with circular plate in the cavity, the outer end column of piston column is active and is penetrated to the cavity of cavity, and the column end of piston column is fixedly connected with the surface of circular plate, the side of circular plate away from piston column is provided with spring in the cavity cavity, the surface of fixed cylinder is equipped with symmetrical hollow slot, the circumference outer wall of circular plate is fixed with the guide column of active penetration hollow slot slot cavity, the circumference outside wall of inner tube is wrapped with the wrapping layer.

[0007] Preferably, the fixed plate is provided with four, four fixed plates are distributed in a circular array.

[0008] Preferably, the wrapping layer includes thermal insulation cotton and sound-absorbing cotton, the sound-absorbing cotton is bonded to the outer wall of the inner tube, and the thermal insulation cotton is bonded to the outer wall of the sound-absorbing cotton.

[0009] Preferably, a rectangular cavity is formed in the interior of the fixed plate, a threaded rod is arranged in the middle inner cavity of the rectangular cavity, the rod body of one end of the threaded rod away from the wrapping layer penetrates the wall of the fixed plate, and a knob is fixedly installed at the rod body end of the threaded rod away from the wrapping layer.

[0010] Preferably, guide rods are fixedly installed in the inner cavities on both sides of the rectangular cavity, an active plate is arranged in the inner cavity of the rectangular cavity, the plate bodies of both ends of the active plate are respectively actively sleeved on the rod body surfaces of the guide rods on both sides, and the middle plate body of the active plate is screwed on the rod body surface of the threaded rod.

[0011] Preferably, a connecting rod is fixedly installed on the side wall of the active plate close to the wrapping layer, the rod body of the connecting rod actively penetrates the wall of the fixed plate, a clamping plate is fixedly installed at the rod body end of the connecting rod, the cross section of the clamping plate is L-shaped, and the inner wall of the clamping plate abuts against the surface of the wrapping layer.

[0012] Preferably, a flow guide groove is formed in the inner wall of the inner tube.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a fixed cylinder, fixed plate, piston column etc. are arranged between the inner tube and the outer tube, when the water flow and the inner tube produce resonance, the vibrating inner tube will drive the piston column to move in the cavity of the fixed cylinder, so that the circular plate extrudes the spring and makes the spring produce elastic deformation, thereby the vibration force of the inner tube is absorbed and offset, and the inner tube is damped, the noise produced by the water pipe resonance is reduced, and the sound absorption performance of the spiral pipe is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the first visual angle structure schematic diagram of a hollow spiral pipe of the utility model that can sound-absorbing.

[0016] Figure 2 It is the utility model Figure 1 It is the enlarged structure schematic diagram of A place in the middle.

[0017] Figure 3 It is the fixed cylinder section structure schematic diagram of a hollow spiral pipe of the utility model that can sound-absorbing.

[0018] Figure 4 It is the fixed plate section structure schematic diagram of a hollow spiral pipe of the utility model that can sound-absorbing.

[0019] Figure 5 It is the wrapping layer section structure schematic diagram of a hollow spiral pipe of the utility model that can sound-absorbing.

[0020] In the drawing: 1, outer tube, 2, inner tube, 3, guide groove, 4, wrapping layer, 401, heat preservation cotton, 402, sound-absorbing cotton, 5, fixed cylinder, 501, cavity, 502, hollow groove, 503, spring, 504, circular plate, 6, fixed plate, 601, rectangular cavity, 602, threaded rod, 603, guide rod, 604, movable plate, 7, push block, 8, piston column, 9, clamping plate, 10, connecting rod, 11, guide column. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work belong to the range of the utility model protection.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5The utility model provides a technical scheme: a hollow spiral pipe can make sound, including outer tube 1 and the inner tube 2 of being located in the inside of outer tube 1, and the inner wall of inner tube 2 is opened in the flow guide groove 3, and its purpose is to facilitate water flow can along the flow guide groove 3 flow, thereby reducing the impact of water flow to the inner wall of inner tube 2, thereby reducing the noise generated when draining. The pipe body left and right two ends circumferential outer wall welding of inner tube 2 has fixed plate 6, and the outer wall welding of fixed plate 6 has piston post 8, and the side wall away from inner tube 2 is the outer wall of fixed plate 6. The inner wall welding of pipe body left and right two ends of outer tube 1 has fixed cylinder 5, and the inside of fixed cylinder 5 is opened in cavity 501, and circular plate 504 is arranged in the cavity of cavity 501, and circular plate 504 can move in cavity 501. The outer end cylinder of piston post 8 is movably penetrated into the cavity of cavity 501, and the cylinder end of piston post 8 is welded with the surface of circular plate 504, and the end away from inner tube 2 is the outer end of piston post 8, and its purpose is to facilitate the movement of circular plate 504 when inner tube 2 vibrates through piston post 8. Circular plate 504 is provided with spring 503 in the cavity 501 cavity away from piston post 8, and its purpose is to make circular plate 504 move in the process of extruding spring 503 to make it produce elastic deformation, thereby absorbing the vibration force generated by inner tube 2. The surface of fixed cylinder 5 is opened in the hollow groove 502 of symmetry, and the circumferential outer wall welding of circular plate 504 has the guide column 11 movably penetrating the hollow groove 502 groove cavity, and its purpose is to facilitate the orientation of circular plate 504, so that it moves stably in cavity 501. The circumferential outer wall of inner tube 2 is wrapped in wrapping layer 4, and wrapping layer 4 includes heat preservation cotton 401 and sound absorption cotton 402, and sound absorption cotton 402 is bonded to the outer wall of inner tube 2, and heat preservation cotton 401 is bonded to the outer wall of sound absorption cotton 402, by wrapping sound absorption cotton 402 in the outer wall of inner tube 2, the sound absorption effect of the spiral pipe can be greatly improved, and heat preservation cotton 401 helps to heat preservation of inner tube 2.

[0023] Four fixed plates 6 are arranged in a circumferential array, which is convenient for omnidirectional damping of the inner tube 2. A rectangular cavity 601 is formed in the fixed plate 6, and a threaded rod 602 is arranged in the middle of the rectangular cavity 601. The threaded rod 602 is connected with the cavity wall of the rectangular cavity 601 through a bearing. The threaded rod 602 penetrates the wall of the fixed plate 6 at the end away from the wrapping layer 4, and a knob 7 is welded at the end of the rod body of the threaded rod 602 away from the wrapping layer 4, which is convenient for rotating the threaded rod 602 through the knob 7. Two guide rods 603 are welded in the two side cavities of the rectangular cavity 601, and the two ends of the rod body of the guide rod 603 are welded on the two side walls of the cavity of the rectangular cavity 601, and the guide rod 603 is arranged in parallel with the threaded rod 602. An activity plate 604 is arranged in the cavity of the rectangular cavity 601, and the two end plate bodies of the activity plate 604 are movably sleeved on the surface of the rod body of the two guide rods 603, and the middle plate body of the activity plate 604 is screwed on the surface of the rod body of the threaded rod 602, which is convenient for moving the activity plate 604 when the threaded rod 602 rotates. A connecting rod 10 is welded on the side wall of the activity plate 604 close to the wrapping layer 4, the rod body of the connecting rod 10 movably penetrates the wall of the fixed plate 6, and a clamping plate 9 is welded at the end of the rod body of the connecting rod 10. The cross section of the clamping plate 9 is L-shaped, and the inner wall of the clamping plate 9 abuts against the surface of the wrapping layer 4, which is convenient for rotating the threaded rod 602 through the knob 7 after the installation of the wrapping layer 4 is completed, and then moving the activity plate 604 under the action of the guide rod 603, moving the clamping plate 9 to the wrapping layer 4 through the connecting rod 10 and abutting against it, which can improve the installation stability of the wrapping layer 4 and avoid its falling off.

[0024] When the water flow is made to flow in the inner tube 2 and resonates with the inner tube 2, the vibrating inner tube 2 drives the piston column 8 to move in the cavity 501 of the fixed cylinder 5 through the fixed plate 6, so that the circular plate 504 extrudes the spring 503 to make the spring 503 elastically deform, thereby absorbing and offsetting the vibration force generated by the water flow and the inner tube 2, and then playing a damping effect on the inner tube 2, which is beneficial to reducing the noise generated by the water flow and the inner tube 2 resonating, and improving the sound absorption performance of the spiral pipe.

[0025] It should be noted that, in this document, the terms such as first and second 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 the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sound-absorbing hollow spiral pipe comprising an outer pipe (1) and an inner pipe (2) located inside the outer pipe (1), characterized in that: The outer wall of the fixed plate (6) is fixedly installed with a piston column (8), the inner wall of the pipe body of the outer pipe (1) is fixedly installed with a fixed cylinder (5), a cavity (501) is arranged in the fixed cylinder (5), the outer end column of the piston column (8) is movably penetrated into the cavity (501), the column end of the piston column (8) is fixedly connected with the surface of the circular plate (504), a spring (503) is arranged on the side, away from the piston column (8), of the circular plate (504) and located in the cavity (501), the surface of the fixed cylinder (5) is provided with symmetrical hollow grooves (502), the circumferential outer wall of the circular plate (504) is fixedly provided with a guide column (11) movably penetrating the groove cavity of the hollow groove (502), and the circumferential outer wall of the inner pipe (2) is wrapped with a wrapping layer (4).

2. The sound-attenuating hollow spiral pipe of claim 1, wherein: The fixed plate (6) is provided with four fixed plates (6) which are distributed in a circumferential array.

3. The sound-attenuating hollow spiral pipe of claim 1, wherein: The wrapping layer (4) comprises heat preservation cotton (401) and sound absorbing cotton (402), the sound absorbing cotton (402) is attached to the outer wall of the inner pipe (2), and the heat preservation cotton (401) is attached to the outer wall of the sound absorbing cotton (402).

4. The sound-attenuating hollow spiral pipe of claim 1, wherein: A rectangular cavity (601) is arranged in the fixed plate (6), a threaded rod (602) is arranged in the middle inner cavity of the rectangular cavity (601), one end of the threaded rod (602), away from the wrapping layer (4), penetrates the wall of the fixed plate (6), and a knob (7) is fixedly installed at the end of the rod body, away from the wrapping layer (4), of the threaded rod (602).

5. The sound attenuating hollow spiral pipe of claim 4, wherein: Guide rods (603) are fixedly installed on both sides of the inner cavity of the rectangular cavity (601), and a movable plate (604) is arranged in the inner cavity of the rectangular cavity (601).

6. The sound-attenuating hollow spiral pipe of claim 5, wherein: The side wall, close to the wrapping layer (4), of the movable plate (604) is fixedly installed with a connecting rod (10), the rod body of the connecting rod (10) movably penetrates the wall of the fixed plate (6), the rod body end of the connecting rod (10) is fixedly installed with a clamping plate (9), the cross section of the clamping plate (9) is L-shaped, and the inner wall of the clamping plate (9) abuts against the surface of the wrapping layer (4).

7. The sound-attenuating hollow spiral pipe of claim 1, wherein: The inner wall of the inner pipe (2) is provided with a flow guide groove (3).

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