Flexible connection structure for pipeline

Abstract

The utility model relates to the technical field of pipeline installation, in particular to a flexible connection structure for pipelines, which comprises a metal hose, a first flange, a second flange, a protective cover, bolts and the like. The metal hose is a main connecting carrier, first flanges are welded to joints at the two ends of the metal hose, second flanges are in butt joint with the outer sides of the first flanges on the two sides, and protective covers are arranged on the outer sides of the first flanges. And four symmetrically-distributed bolts are arranged between the first flange and the second flange in a threaded penetrating manner. The output gear and the planetary gear are driven by the motor, so that automatic loosening and tightening of the bolt are realized, and the disassembly and assembly efficiency is greatly improved; the wedge-shaped teeth of the anti-loosening gasket and the wedge-shaped teeth of the auxiliary gasket are meshed with each other, the bolt is effectively prevented from loosening due to vibration in the using process, and the stability of a connecting piece after long-time operation is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline installation technical field especially, relates to a soft connection structure for pipeline. BACKGROUND

[0002] Pipeline connection refers to the technical means between different pipelines or pipeline and equipment connection, the purpose is to ensure that fluid or gas can be safely, leaklessly transmitted in the pipeline system.

[0003] Pipeline soft connection structure is a kind of flexible connecting piece for connecting pipeline system, mainly used to reduce the pipeline stress caused by thermal expansion and contraction, mechanical vibration or earthquake, can also absorb the small displacement between pipelines, reduce noise transmission.

[0004] However, the existing pipeline connection structure is mainly dependent on manual operation in the process of dismounting and installation, when operating, workers need to manually tighten or loosen bolt one by one, time-consuming and laborious, especially in large pipeline system, this process will occupy a lot of time and human resources;And bolt is not tightened or loosened in the process of manual dismounting, especially in the environment of larger vibration, may lead to the loosening of connecting piece, causes leakage or other security risks.

[0005] Therefore, it is particularly necessary to design a soft connection structure for pipeline to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses in order to overcome the above-mentioned prior art's shortcomings, the utility model provides a soft connection structure for pipeline.

[0007] In order to solve the above technical problems, the utility model provides a kind of soft connection structure for pipeline, including metal hose, first flange, second flange, protective cover, bolt, nut, motor, output gear, limit rod, planet gear and planet gear, the metal hose is main connection carrier, the joint of metal hose both ends is welded with first flange, both sides first flange outer side is butt joint with second flange, the outer side of first flange is provided with protective cover, four symmetrically distributed bolts are threaded and penetrated between the first flange and the second flange of two places, the threaded nut is arranged between the penetrating end of each bolt and the first flange, and the top of first flange is provided with motor, the output shaft of both sides motor is provided with output gear, the outer side of two first flanges is evenly provided with a plurality of limit rods, a plurality of limit rods end portions are rotatably provided with planet gear, the planet gear is framed in its inner side by the protective cover, the outer gear teeth of planet gear are rotatably engaged with the output gear above, each nut outer side is provided with planet gear, and each planet gear is rotatably engaged with the inner gear teeth of the planet gear around the outer side.

[0008] Preferably, anti-loose washers and auxiliary washers are further included, and the anti-loose washers are arranged at the positions corresponding to the bolts on the inner sides of the first flanges, and the auxiliary washers are arranged between the contact surfaces of the first flanges and the nuts.

[0009] Preferably, the anti-loose washers and the auxiliary washers are provided with wedge teeth, and the wedge teeth of the anti-loose washers and the auxiliary washers are matched.

[0010] Preferably, shaft sleeves and a shaft rod are further included, and the shaft sleeves are arranged at the bottom of the first flanges, and the shaft rod is inserted between the shaft sleeves.

[0011] Preferably, the shaft sleeves are provided with openings at the lower parts.

[0012] Preferably, the shaft rod is provided with protrusions matched with the size of the openings of the shaft sleeves, and the two ends of the protrusions are in contact with the upper end faces of the shaft sleeves.

[0013] Preferably, when the shaft rod is rotated to 180 degrees, the protrusions on the shaft rod are opposite to the openings of the shaft sleeves, and the shaft rod can be pulled out.

[0014] The utility model discloses a motor-driven output gear and planetary gear, realize the automatic tightness of bolt, greatly improve the dismounting efficiency, and the wedge teeth of anti-loose washer and auxiliary washer are mutually engaged, effectively prevent the bolt from loosening due to vibration in the use process, and ensure the stability of the connecting piece after long time operation.

[0015] The utility model discloses a shaft rod and shaft sleeve cooperation, can quickly reposition, and it is convenient to accurate alignment flange interface when installing again. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is the three-dimensional structure schematic diagram of the utility model metal hose, flange and protective cover etc.

[0018] Figure 3 It is the three-dimensional structure schematic diagram of the utility model motor, output gear and planetary gear etc.

[0019] Figure 4 It is the three-dimensional structure schematic diagram of the utility model limiting rod, planetary gear and auxiliary washer etc.

[0020] Figure 5The utility model discloses an explosion map display of first flange, second flange and protective cover and the like components.

[0021] Figure 6 The utility model discloses a three-dimensional structure schematic diagram of planet gear and limit rod at rear side view angle.

[0022] Figure 7 The utility model discloses a three-dimensional structure schematic diagram of bolt, nut and auxiliary gasket and the like components.

[0023] Figure 8 The utility model discloses a three-dimensional structure schematic diagram of anti-loose gasket and auxiliary gasket.

[0024] The mark in drawing is: 1 - metal hose, 2 - first flange, 21 - second flange, 3 - protective cover, 4 - bolt, 41 - nut, 5 - motor, 6 - output gear, 7 - limit rod, 8 - planet gear, 9 - planet gear, 10 - anti-loose gasket, 11 - auxiliary gasket, 12 - shaft sleeve, 13 - shaft rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of the utility model protection.

[0026] Embodiment: a soft connection structure for pipeline, like Figures 1-8As shown, including metal hose 1, first flange 2, second flange 21, shield 3, bolt 4, nut 41, motor 5, output gear 6, limit rod 7, planetary gear ring 8 and planetary gear 9, metal hose 1 is the main connection carrier, metal hose 1 can play a flexible connection in the pipeline system, absorb the stress caused by thermal expansion and contraction, mechanical vibration or earthquake and other factors, the joint at both ends of the metal hose 1 is welded with the first flange 2, the first flange 2 is used to ensure the stable connection of the metal hose 1 and the pipeline system, prevent leakage, both sides of the first flange 2 are butt jointed with the second flange 21, the second flange 21 ensures the sealing of the pipeline connection, prevents fluid or gas leakage, the outer side of the first flange 2 is provided with the shield 3, the shield 3 covers the outer side of the planetary gear ring 8, protects the internal mechanical parts from the influence of the external environment, four symmetrically distributed bolts 4 are provided between the first flange 2 and the second flange 21, the bolt 4 is connected with the first flange 2 and the second flange 21 through threads, ensures the tight connection between the two, the threaded nut 41 is provided between the penetrating end of each bolt 4 and the first flange 2, the nut 41 cooperates with the bolt 4, by rotating the bolt 4, the fixing or disassembly of the two flanges is realized, and the motor 5 is provided at the top of the first flange 2, the motor 5 provides power source, drives the planetary gear ring 8 to rotate through the output gear 6, and then drives the nut 41 to rotate, the output gear 6 is provided on the output shaft of the motor 5, the output gear 6 transmits the power of the motor 5 to the planetary gear ring 8, drives the planetary gear ring 8 to rotate, a plurality of limit rods 7 are uniformly arranged on the outer side of the first flange 2, the planetary gear ring 8 is rotatably arranged between the end portions of the plurality of limit rods 7, the planetary gear ring 8 is engaged with the output gear 6, drives the four planetary gears 9 to rotate synchronously, prevents the tilt or jamming phenomenon caused by the asynchronous rotation of the single nut 41, and then drives the nut 41 to rotate, the planetary gear ring 8 is boxed on the inner side of the shield 3, the outer gear teeth of the planetary gear ring 8 are rotatably engaged with the upper output gear 6, each nut 41 is provided with a planetary gear 9, each planetary gear 9 is rotatably engaged with the inner gear teeth of the planetary gear ring 8 around the outer side.

[0027] As Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the first flange 2 is internally provided with a locking washer 10 and an auxiliary washer 11, the locking washer 10 is placed at the connection position corresponding to each bolt 4, the locking washer 10 is in close contact with the outer side of the bolt 4 through the wedge teeth, preventing the bolt 4 from loosening, the locking washer 10 is in rotating contact with the outer side of the bolt 4, and the auxiliary washer 11 is placed between the contact surfaces of the two first flanges 2 and the nut 41, which can further enhance the stability of the connection structure and prevent the nut 41 from loosening due to vibration during use, each auxiliary washer 11 is in close contact with each locking washer 10, the locking washer 10 and the auxiliary washer 11 are provided with wedge teeth, and the wedge teeth of the two are matched.

[0028] As shown in the drawings, the first flange 2 is internally provided with a locking washer 10 and an auxiliary washer 11, the locking washer 10 is placed at the connection position corresponding to each bolt 4, the locking washer 10 is in close contact with the outer side of the bolt 4 through the wedge teeth, preventing the bolt 4 from loosening, the locking washer 10 is in rotating contact with the outer side of the bolt 4, and the auxiliary washer 11 is placed between the contact surfaces of the two first flanges 2 and the nut 41, which can further enhance the stability of the connection structure and prevent the nut 41 from loosening due to vibration during use, each auxiliary washer 11 is in close contact with each locking washer 10, the locking washer 10 and the auxiliary washer 11 are provided with wedge teeth, and the wedge teeth of the two are matched. Figures 1-2 As shown, the first flange 2 is internally provided with a locking washer 10 and an auxiliary washer 11, the locking washer 10 is placed at the connection position corresponding to each bolt 4, the locking washer 10 is in close contact with the outer side of the bolt 4 through the wedge teeth, preventing the bolt 4 from loosening, the locking washer 10 is in rotating contact with the outer side of the bolt 4, and the auxiliary washer 11 is placed between the contact surfaces of the two first flanges 2 and the nut 41, which can further enhance the stability of the connection structure and prevent the nut 41 from loosening due to vibration during use, each auxiliary washer 11 is in close contact with each locking washer 10, the locking washer 10 and the auxiliary washer 11 are provided with wedge teeth, and the wedge teeth of the two are matched.

[0029] When installing, firstly check whether all components are intact, ensure that the metal hose 1, flange, bolt 4, gasket and other components are not damaged, prepare necessary tools such as wrench, screwdriver, etc., weld the first flange 2 at both ends of the metal hose 1, ensure that the welding is firm and reliable, before welding, use appropriate clamps to fix the position of the flange to avoid deviation during welding, align the second flange 21 with the first flange 2, and ensure that the flange surfaces are flat and in contact without obvious gap, place the lock washer 10 at the connection of each bolt 4 at the joint of the first flange 2 and the second flange 21, the wedge teeth of the lock washer 10 need to be in close contact with the outside of the bolt 4, place the auxiliary gasket 11 between the contact surface of the first flange 2 and the nut 41, ensure that the gasket is in close contact with the lock washer 10, the auxiliary gasket 11 also has wedge teeth to ensure that it matches the wedge teeth on the lock washer 10, to prevent the bolt 4 from loosening due to vibration during use, thereby ensuring the stability of the connecting piece after long time operation, pass the bolt 4 through the second flange 21 and the first flange 2 in sequence, and ensure that the lock washer 10 is located between the bolt 4 and the first flange 2, preliminarily tighten the bolt 4 using a wrench, but do not tighten completely, so as to facilitate subsequent adjustment, tighten the nut 41 on the bolt 4, ensure that the nut 41 is in close contact with the auxiliary gasket 11, gradually tighten the nut 41 until the bolt 4 is completely fixed, insert the shaft rod 13 into the shaft sleeve 12 at the bottom of the first flange 2, and ensure that the protrusion on the shaft rod 13 is aligned with the notch of the shaft sleeve 12, rotate the shaft rod 13 to make the protrusion on the shaft rod 13 aligned with the notch of the shaft sleeve 12, to ensure that the shaft rod 13 can be smoothly inserted;

[0030] When disassembling, start the motor 5, the motor 5 drives the output gear 6 to rotate, the start of the motor 5 can be realized through a manual button or a remote control system, the rotation of the output gear 6 drives the planetary gear ring 8 to rotate, the inner gear teeth of the planetary gear ring 8 are engaged with the planetary gear 9 on the nut 41, thereby driving the nut 41 to rotate, the planetary gear 9 ensures the synchronous rotation of the nut 41, avoiding the inclination or jamming phenomenon caused by the asynchronization of the single nut 41, with the rotation of the nut 41, the bolt 4 is gradually loosened until completely separated from the first flange 2 and the second flange 21, the limiting rod 7 limits the movement range of the planetary gear ring 8 to prevent mechanical failure caused by excessive rotation, after the bolt 4 is completely loosened, the second flange 21 can be easily removed, at this time, the shaft rod 13 can be manually pulled out to facilitate replacement or maintenance.

[0031] The above-described embodiments only express the preferred embodiments of the present application, which are described in detail, but should not be understood as limiting the scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A flexible connection structure for a pipe, characterized by, The utility model provides a metal hose (1), first flange (2), second flange (21), shield (3), bolt (4), nut (41), motor (5), output gear (6), limit rod (7), planet gear (8) and planet gear (9) are included, the metal hose (1) is the main connection carrier, the joint of metal hose (1) both ends is welded with first flange (2), both sides first flange (2) outside butt joint has second flange (21), first flange (2) outside is provided with shield (3) all, two first flange (2) and second flange (21) between all are screwed and are provided with four symmetrical distribution bolt (4), the penetration end of each bolt (4) and first flange (2) between all are screwed and are provided with nut (41), and first flange (2) top all are provided with motor (5), both sides output shaft of motor (5) all are provided with output gear (6), and a plurality of limit rod (7) are evenly provided outside two first flange (2), a plurality of limit rod (7) end all are rotatably provided with planet gear (8), the planet gear (8) is framed in its inside by shield (3), the outer gear of planet gear (8) all is rotatably engaged with the output gear (6) above, each nut (41) outside all are provided with planet gear (9), and each planet gear (9) is rotatably engaged with the inner gear of the planet gear (8) that surrounds outside.

2. A flexible connection structure for pipes according to claim 1, characterized in that, Also including anti-loosening washer (10) and auxiliary washer (11), two first flange (2) inside corresponding to the connection of each bolt (4) all are placed with anti-loosening washer (10), anti-loosening washer (10) and bolt (4) outside rotatory contact, and two first flange (2) and nut (41) contact surface between are placed with auxiliary washer (11), each auxiliary washer (11) all are closely attached with each anti-loosening washer (10).

3. A flexible connection for pipes according to claim 2, characterized in that The anti-loosening washer (10) and the auxiliary washer (11) are provided with wedge teeth, and the wedge teeth of the two are matched.

4. A flexible connection for pipes according to claim 3, characterized in that Also including shaft sleeve (12) and shaft rod (13), two first flange (2) bottom all are provided with shaft sleeve (12), and the shaft rod (13) is inserted between two shaft sleeves (12).

5. A flexible connection for pipes according to claim 4, characterized in that The lower part of the shaft sleeve (12) is provided with an opening.

6. A flexible connection for pipes according to claim 5, characterized in that The shaft rod (13) is provided with a protrusion that is adapted to the size of the opening of the shaft sleeve (12), and the two ends of the protrusion abut against the upper end faces of the two shaft sleeves (12).

7. A flexible connection for pipes according to claim 6, characterized in that When the shaft rod (13) is rotated to 180 degrees, the protrusion on the shaft rod (13) is opposite to the openings of the two shaft sleeves (12), and the shaft rod (13) can be pulled out.

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