CN112856081B

CN112856081B - Double-layer corrugated pipe butt joint

Info

Publication number: CN112856081B
Application number: CN202011629662.7A
Authority: CN
Inventors: 孙艳朝
Original assignee: Liaoning Xitai Technology Co ltd
Current assignee: Liaoning Xitai Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-06-07
Anticipated expiration: 2040-12-31
Also published as: CN112856081A

Abstract

The invention relates to the technical field of pipeline joints, in particular to a double-layer corrugated pipe butt joint which comprises a joint mechanism, a clamping mechanism, a damping mechanism and a supporting mechanism, wherein the joint mechanism is used for being in butt joint with two corrugated pipes; the joint mechanism comprises a butt joint pipe and rotating parts which are rotatably connected to two end parts of the butt joint pipe, and the two rotating parts are respectively in threaded connection with the two corrugated pipes; the clamping mechanism comprises a first hoop body and a second hoop body which are symmetrically arranged up and down and are hinged with each other, the first hoop body and the second hoop body are butted and spliced into an annular structure and sleeved on the outer wall of the butted pipe, and a forming part is arranged on the bottom surface of the second hoop body; the clamping mechanism is sleeved outside the joint mechanism, and the damping mechanism is arranged below the clamping mechanism and used for slowing down vibration caused by fluid and avoiding loosening of the joint.

Description

Double-layer corrugated pipe butt joint

Technical Field

The invention relates to the technical field of pipeline joints, in particular to a double-layer corrugated pipe butt joint.

Background

The double-layer corrugated pipe is a special corrugated pipe consisting of a layer of common corrugated pipe and a layer of anti-corrosion lining, and is mainly used for transporting special fluid and enhancing the structural strength of the pipeline. At present, when chemical raw materials are transported by using double-layer corrugated pipes, a plurality of corrugated pipes are required to be assembled one by one, and therefore, a corrugated pipe butt joint is required to be used. The present bellows butt joint is similar to the ferrule, and its principle is that both ends respectively with two bellows threaded connection to realize the pipeline butt joint effect, however in the in-service use process, there is following defect yet:

1. in the process of transporting fluid, the pipeline per se can vibrate to a certain extent, and particularly when the flow rate of the fluid is high, the pipeline vibration is obvious, so that the loosening condition of a joint is easily caused along with the increase of the service life, and further a fluid leakage event can be caused;

2. the existing corrugated pipe joint lacks a supporting mechanism, so that two corrugated pipes at two ends of the joint have downward falling force, so that the corrugated pipe joint is subjected to large radial acting force, and the joint or the end part of the corrugated pipe is easily damaged along with the increase of time.

Therefore, we propose a double-layer corrugated pipe butt joint to solve the above disadvantages well.

Disclosure of Invention

The invention aims to provide a double-layer corrugated pipe butt joint which is used for relieving the vibration of the joint, preventing the joint from loosening, relieving the radial acting force borne by the joint and avoiding the damage of the joint or the end part of the corrugated pipe.

The above object of the present invention is achieved by the following technical solutions:

a double-layer corrugated pipe butt joint comprises a joint mechanism for butt joint with two corrugated pipes, a clamping mechanism sleeved outside the joint mechanism, a damping mechanism positioned below the clamping mechanism and a supporting mechanism for supporting the corrugated pipes;

the joint mechanism comprises a butt joint pipe and rotating parts which are rotatably connected to two end parts of the butt joint pipe, and the two rotating parts are respectively in threaded connection with the two corrugated pipes; the clamping mechanism comprises a first hoop body and a second hoop body which are symmetrically arranged up and down and are hinged with each other, the first hoop body and the second hoop body are butted and spliced into a circular structure and sleeved on the outer wall of the butted pipe, and a forming part is arranged on the bottom surface of the second hoop body;

the damping mechanism comprises an installation table and two positioning ridges positioned on the front side and the rear side of the top surface of the installation table, two main shafts are symmetrically distributed between the two positioning ridges, a supporting part is rotatably connected onto the main shafts, a penetrating notch is formed in the top of the supporting part, connecting rods are arranged on two sides of the top of the supporting part, and connecting parts used for being in sliding connection with the bottom of the forming part are rotatably connected into the penetrating notch; hinged supports are fixedly arranged on two sides of the positioning ridge, a first rotating sheet is hinged to each hinged support, an air spring is fixedly arranged on each first rotating sheet, and a piston rod of each air spring is fixedly connected with a second rotating sheet which is used for being in rotating fit with the connecting rod;

the supporting mechanism is including setting firmly two backup pads of both sides around the mount table, two backup pad symmetric distribution, just the top of backup pad has set firmly a supporting bench, but the top elastic connection of supporting bench has the platform of holding of oscilaltion, it has seted up the bar mouth to hold to run through on the bench, be provided with in the bar mouth and be used for with the corrugated pipe outer wall laminated movable pulley.

Preferably, the rotating part is double-deck tubular structure, and the inside and outside two-layer of rotating part is located the inside and outside both sides of bellows respectively, and the inlayer and the bellows spiro union of rotating part are equipped with sealed the pad between the inlayer and the skin of rotating part for laminate with the bellows tip.

Preferably, the inner wall of the rotating part is provided with an annular limiting groove, the outer wall of the butt joint pipe is formed with a limiting bulge matched with the limiting groove, and the limiting bulge is embedded into the corresponding limiting groove; and sealing rings are embedded in the outer walls of the two ends of the butt joint pipe and are attached to the rotating part.

Preferably, the outer inner wall laminating elastic layer of rotating part, the opening of a plurality of parallel central lines direction is seted up to the outer port department of rotating part, and the fixed cover of opening part of rotating part is equipped with the clamp.

Preferably, the clamping mechanism comprises a jointing layer positioned on the inner walls of the first hoop body and the second hoop body, and the jointing layer is tightly jointed with the outer wall of the butt joint pipe; the bottom surface of shaping portion is equipped with the sliding part that distributes along its length direction, sliding part and connecting portion sliding fit.

Preferably, the bottom four corners department of damper is provided with outer support leg, the inboard of outer support leg has inserted interior support leg, interior support leg is last to have seted up a plurality of through-holes along vertical direction, it is used for inserting the fastening bolt in one of them through-hole to run through on the outer support leg.

Preferably, a plurality of upright posts are vertically arranged on the bottom surface of the containing table, and the upright posts penetrate through the supporting table; the bottom surface of the supporting plate is integrally formed with a plurality of reinforcing ribs.

Preferably, the supporting table and the bottom surface of the holding table are provided with two sets of elastic parts, each elastic part is composed of two arc-shaped pieces which are symmetrically distributed and have elasticity, and two ends of each arc-shaped piece are connected with the top surface of the supporting table and the bottom surface of the holding table respectively.

Compared with the prior art, the invention provides a double-layer corrugated pipe butt joint which has the following beneficial effects:

1. the clamping mechanism is sleeved outside the joint mechanism, and the damping mechanism is arranged below the clamping mechanism and used for slowing down vibration caused by fluid flow and avoiding loosening of the joint;

2. according to the invention, two supporting plates are respectively arranged on two sides of the damping mechanism, a containing table is arranged above the supporting plates, and a sliding wheel for being attached to the outer wall of the corrugated pipe is arranged on the containing table and used for providing auxiliary support for the corrugated pipe, so that the radial acting force applied to the joint mechanism is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of a clamping mechanism of the present invention;

FIG. 5 is a schematic view of the damping mechanism of the present invention;

FIG. 6 is a schematic view of the supporting mechanism of the present invention.

In the figure: 10. a joint mechanism; 101. butt-joint pipes; 102. a rotating part; 103. a gasket; 104. an elastic layer; 105. a limiting groove; 106. a limiting bulge; 107. a seal ring; 108. an opening; 109. clamping a hoop; 20. a clamping mechanism; 201. a first hoop body; 202. a second band body; 203. laminating layers; 204. a molding section; 205. a sliding part; 30. a damping mechanism; 301. an installation table; 302. positioning ridges; 303. a main shaft; 304. a support portion; 305. the notch is penetrated; 306. a connecting portion; 307. hinging seat; 308. a first rotating piece; 309. a gas spring; 310. a second rotating piece; 311. a connecting rod; 312. outer support legs; 313. an inner support leg; 314. a through hole; 315. fastening a bolt; 40. a support mechanism; 401. a support plate; 402. a support table; 403. a containing table; 404. erecting a rod; 405. a strip-shaped opening; 406. a sliding wheel; 407. an arc-shaped sheet; 408. reinforcing ribs; 50. a bellows.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 and 2, a double-layer corrugated pipe butt joint includes a joint mechanism 10 for butting against two corrugated pipes 50, a clamping mechanism 20 sleeved outside the joint mechanism 10, a damping mechanism 30 located below the clamping mechanism 20, and a supporting mechanism 40 for supporting the corrugated pipes 50; the joint mechanism 10 includes a butt pipe 101 and two rotation portions 102 rotatably connected to both end portions of the butt pipe 101, and the two rotation portions 102 are screwed to the two bellows 50, respectively.

Referring to fig. 1, 2 and 3, the rotating portion 102 has a double-layer tubular structure, the inner layer and the outer layer of the rotating portion 102 are respectively located at the inner side and the outer side of the corrugated tube 50, the inner layer of the rotating portion 102 is screwed with the corrugated tube 50, a sealing gasket 103 is disposed between the inner layer and the outer layer of the rotating portion 102, and the sealing gasket 103 is made of a rubber material and is used for being attached to the end of the corrugated tube 50, so as to improve the sealing performance of the joint mechanism 10. An annular limiting groove 105 is formed in the inner wall of the rotating part 102, a limiting protrusion 106 matched with the limiting groove 105 is formed in the outer wall of the butt joint pipe 101, and the limiting protrusion 106 is embedded into the corresponding limiting groove 105; sealing rings 107 are embedded in the outer walls of the two ends of the butt joint pipe 101, the sealing rings 107 are attached to the rotating portion 102, and the sealing rings 107 are bonded and fixed on the outer wall of the butt joint pipe 101 to enhance the sealing performance between the butt joint pipe 101 and the rotating portion 102. The outer wall of the rotating portion 102 is attached with the elastic layer 104, the outer port of the rotating portion 102 is provided with a plurality of openings 108 parallel to the central line direction thereof, the openings 108 allow the outer caliber of the rotating portion 102 to move within a certain range, the opening 108 of the rotating portion 102 is fixedly sleeved with a clamp 109, and the rotating portion 102 is tightly sleeved on the outer side of the corrugated pipe 50 under the clamping action of the clamp 109.

Referring to fig. 1 and 4, the clamping mechanism 20 includes two first hoop bodies 201 and two second hoop bodies 202 which are symmetrically arranged up and down and are hinged to each other, one end of the first hoop body 201 is hinged to the second hoop body 202, the other end of the first hoop body 201 is fixed to the second hoop body 202 in a screwed manner, the first hoop body 201 and the second hoop body 202 are butted and spliced into a circular ring structure and are sleeved on the outer wall of the butt pipe 101, a forming portion 204 is arranged on the bottom surface of the second hoop body 202, and the forming portion 204 and the second hoop body 202 are of an integrally formed structure; the clamping mechanism 20 includes a laminating layer 203 located on the inner walls of the first hoop body 201 and the second hoop body 202, the laminating layer 203 is laminated on the outer wall of the butt joint pipe 101, the laminating layer 203 is fixed to the first hoop body 201 and the second hoop body 202 through adhesive bonding, and the laminating layer 203 has certain elasticity to clamp the butt joint pipe 101.

Referring to fig. 1, 4 and 5, the damping mechanism 30 includes an installation table 301, two positioning ridges 302 located on the front and rear sides of the top surface of the installation table 301, the positioning ridges 302 and the installation table 301 are welded and fixed, two main shafts 303 are symmetrically distributed between the two positioning ridges 302, two ends of the main shaft 303 are welded and fixed with the two positioning ridges 302 respectively, the main shaft 303 is rotatably connected with a supporting portion 304, the top of the supporting portion 304 is provided with a through notch 305, two sides of the top of the supporting portion 304 are provided with connecting rods 311, the connecting rods 311 and the supporting portion 304 are of an integrated structure, the through notch 305 is rotatably connected with a connecting portion 306 for sliding connection with the bottom of the forming portion 204, the connecting portion 306 is rotatably connected in the through notch 305, and the connecting portion 306 is in sliding fit with the bottom surface of the forming portion 204; hinged supports 307 are fixedly arranged on two sides of the positioning ridge 302, a first rotating sheet 308 is hinged on the hinged supports 307, a gas spring 309 is fixedly arranged on the first rotating sheet 308, and a second rotating sheet 310 which is used for being in rotating fit with the connecting rod 311 is fixedly connected to a piston rod of the gas spring 309; therefore, when the joint mechanism 10 shakes to a certain extent, the inclination angle of the support portion 304 changes, and the gas spring 309 is used to reduce the vibration effect of the joint mechanism 10. Outer support legs 312 are arranged at four corners of the bottom of the shock absorption mechanism 30, inner support legs 313 are inserted into the inner sides of the outer support legs 312, a plurality of through holes 314 are formed in the inner support legs 313 along the vertical direction, and fastening bolts 315 inserted into one of the through holes 314 penetrate through the outer support legs 312. The bottom surface of the forming part 204 is provided with sliding parts 205 distributed along the length direction, the sliding parts 205 and the forming part 204 are of an integral forming structure, and the sliding parts 205 are in sliding fit with the connecting parts 306.

Referring to fig. 2 and 6, the supporting mechanism 40 includes two supporting plates 401 fixedly disposed at the front and rear sides of the mounting platform 301, the two supporting plates 401 are symmetrically disposed, a supporting platform 402 is fixedly disposed at the top of the supporting plate 401, the supporting plate 401 is fixed to the mounting platform 301 by screwing, the supporting plate 401 is fixed to the supporting platform 402 by welding, a holding platform 403 capable of ascending and descending is elastically connected to the upper side of the supporting platform 402, a strip-shaped opening 405 is formed in the holding platform 403 in a penetrating manner, a sliding wheel 406 for fitting with the outer wall of the corrugated pipe 50 is disposed in the strip-shaped opening 405, that is, the sliding wheel 406 is rotatably connected to the inner side of the strip-shaped opening 405; a plurality of upright posts 404 are vertically arranged on the bottom surface of the containing table 403, the upright posts 404 are welded on the bottom surface of the containing table 403, and the upright posts 404 penetrate through the supporting table 402; a plurality of reinforcing ribs 408 are integrally formed on the bottom surface of the supporting plate 401; two groups of elastic parts are arranged between the supporting platform 402 and the containing platform 403, each elastic part is composed of two arc-shaped pieces 407 which are symmetrically distributed and have elasticity, and two ends of each arc-shaped piece 407 are respectively connected with the top surface of the supporting platform 402 and the bottom surface of the containing platform 403; the arc piece 407 is supported by a metal thin plate, so that it has a certain elasticity, and both ends of the arc piece 407 are screwed and fixed to the support base 402 and the holding base 403, respectively.

The working principle is as follows: in the use process of the present invention, since the damping mechanism 30 is disposed below the clamping mechanism 20, when the joint mechanism 10 vibrates due to the fluid flow, the damping mechanism 30 can play a role in damping the vibration, so as to prevent the joint mechanism 10 from loosening due to the vibration. In addition, the supporting mechanism 40 includes two holding platforms 403 symmetrically distributed in front and back, and the sliding wheels 406 on the holding platforms 403 are attached to the outer wall of the corrugated tube 50 to support the corrugated tube 50, reduce the radial acting force borne by the joint mechanism 10, and prevent the end of the joint mechanism 10 or the end of the corrugated tube 50 from being damaged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double-deck bellows butt joint which characterized in that: the corrugated pipe joint comprises a joint mechanism (10) for butting with two corrugated pipes (50), a clamping mechanism (20) sleeved outside the joint mechanism (10), a damping mechanism (30) positioned below the clamping mechanism (20) and a supporting mechanism (40) for supporting the corrugated pipes (50);

the joint mechanism (10) comprises a butt joint pipe (101) and rotating parts (102) rotatably connected to two end parts of the butt joint pipe (101), and the two rotating parts (102) are respectively in threaded connection with the two corrugated pipes (50); the clamping mechanism (20) comprises a first hoop body (201) and a second hoop body (202) which are symmetrically arranged up and down and are hinged with each other, the first hoop body (201) and the second hoop body (202) are butted and spliced into a circular structure and sleeved on the outer wall of the butt joint pipe (101), and a forming part (204) is arranged on the bottom surface of the second hoop body (202);

the damping mechanism (30) comprises an installation table (301) and two positioning ridges (302) positioned on the front side and the rear side of the top surface of the installation table (301), two main shafts (303) are symmetrically distributed between the two positioning ridges (302), a supporting part (304) is rotatably connected onto each main shaft (303), a through notch (305) is formed in the top of each supporting part (304), connecting rods (311) are arranged on two sides of the top of each supporting part (304), and connecting parts (306) which are used for being in sliding connection with the bottom of the forming part (204) are rotatably connected into the through notches (305); hinged supports (307) are fixedly arranged on two sides of the positioning ridge (302), a first rotating sheet (308) is hinged to each hinged support (307), a gas spring (309) is fixedly arranged on each first rotating sheet (308), and a second rotating sheet (310) which is in rotating fit with a connecting rod (311) is fixedly connected to a piston rod of each gas spring (309);

supporting mechanism (40) are including setting firmly two backup pad (401) of both sides around mount table (301), two backup pad (401) symmetric distribution, just the top of backup pad (401) has set firmly brace table (402), but the top elastic connection of brace table (402) has the platform (403) that holds of oscilaltion, it has seted up bar mouth (405) to run through on platform (403) to hold, be provided with in bar mouth (405) and be used for with the sliding pulley (406) of laminating mutually of bellows (50) outer wall.

2. The butt joint of double-layer corrugated pipe as claimed in claim 1, wherein: the rotating portion (102) is of a double-layer tubular structure, the inner layer and the outer layer of the rotating portion (102) are located on the inner side and the outer side of the corrugated pipe (50) respectively, the inner layer of the rotating portion (102) is in threaded connection with the corrugated pipe (50), and a sealing gasket (103) is arranged between the inner layer and the outer layer of the rotating portion (102) and is used for being attached to the end portion of the corrugated pipe (50).

3. The butt joint for double-layer corrugated pipes according to claim 2, wherein: the inner wall of the rotating part (102) is provided with an annular limiting groove (105), the outer wall of the butt joint pipe (101) is formed with a limiting protrusion (106) matched with the limiting groove (105), and the limiting protrusion (106) is embedded into the corresponding limiting groove (105); the outer wall of the two ends of the butt joint pipe (101) is embedded with a sealing ring (107), and the sealing ring (107) is attached to the rotating part (102).

4. The butt joint for double-layer corrugated pipes according to claim 2, wherein: the outer inner wall laminating elasticity layer (104) of rotating part (102), the outer port department of rotating part (102) sets up a plurality of openings (108) that are parallel to its central line direction, and the fixed cover of opening (108) department of rotating part (102) is equipped with clamp (109).

5. The butt joint of double-layer corrugated pipe as claimed in claim 1, wherein: the clamping mechanism (20) comprises a joint layer (203) positioned on the inner walls of the first hoop body (201) and the second hoop body (202), and the joint layer (203) is tightly jointed with the outer wall of the butt joint pipe (101); the bottom surface of the forming part (204) is provided with sliding parts (205) distributed along the length direction of the forming part, and the sliding parts (205) are in sliding fit with the connecting part (306).

6. The butt joint of double-layer corrugated pipe as claimed in claim 1, wherein: outer support leg (312) are provided with in the bottom four corners department of damper (30), inner support leg (313) have been inserted to the inboard of outer support leg (312), a plurality of through-holes (314) have been seted up along vertical direction on inner support leg (313), it is equipped with fastening bolt (315) that are used for inserting in one of them through-hole (314) to run through on outer support leg (312).

7. The butt joint of double-layer corrugated pipe as claimed in claim 1, wherein: a plurality of upright rods (404) are vertically arranged on the bottom surface of the containing table (403), and the upright rods (404) penetrate through the supporting table (402); the bottom surface of the supporting plate (401) is integrally formed with a plurality of reinforcing ribs (408).

8. The butt joint of double-layer corrugated pipe as claimed in claim 1, wherein: support platform (402) and hold and be equipped with two sets of elastic parts between platform (403), elastic part comprises two symmetric distribution and have elastic arc piece (407), the both ends of arc piece (407) are connected with the top surface of support platform (402) and the bottom surface that holds platform (403) respectively.