CN114087444B

CN114087444B - Joint structure for flexible pipeline of wind generating set

Info

Publication number: CN114087444B
Application number: CN202111168991.0A
Authority: CN
Inventors: 陶凯; 杨敏芳; 沈辉; 王建国; 洪哲
Original assignee: Jiaxing Master Plumbing Co ltd
Current assignee: Zhejiang Meisite Hydraulic Pipe Fitting Co.,Ltd.
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2023-07-14
Anticipated expiration: 2041-09-30
Also published as: CN114087444A

Abstract

The invention relates to the field related to hose connection, in particular to a connector structure for a flexible pipeline of a wind generating set, which comprises connectors and a fixing sleeve, wherein the two connectors are arranged at two ends of the connector structure, the axes of the connectors are collinear with the axes of the connector structure, the connectors comprise an inner tube and an outer pressing block, the inner tube is fixedly arranged at a port of the connector, the outer pressing block is made of elastic materials, the outer pressing block is fixedly arranged on an outer ring of the inner tube, and the outer surface of the connector is fixedly provided with a first thread section; the fixed cover is equipped with two, and two fixed covers slidable mounting respectively are on two connector, and the axis of fixed cover and the axis collineation of connector, fixed cover include the second screw thread section, and the second screw thread section is fixed to be set up at fixed cover internal surface, when fixed cover to connector tip external slip, first screw thread section and second screw thread section threaded connection make outer briquetting and inner tube support tightly. The application solves the defects that the torsion cannot be resisted, and the structure of the device can be possibly damaged under the influence of torsion.

Description

Joint structure for flexible pipeline of wind generating set

Technical Field

The invention relates to the field of hose connection, in particular to a joint structure for a flexible pipeline of a wind generating set.

Background

The wind driven generator is an electric power device which converts wind energy into mechanical work and drives a rotor to rotate and finally outputs alternating current. The wind driven generator generally comprises wind wheels, a generator (comprising a device), a direction regulator (tail wing), a tower, a speed limiting safety mechanism, an energy storage device and the like. While many practical flexible lines are connected between components, joints are needed for the connection of flexible lines, most joints in the prior art are directed to rigid pipes, and a small part of joints directed to flexible lines have many problems, including but not limited to: the installation is difficult, the connection is unstable, the leakage rate cannot be guaranteed, etc., and therefore, there is a need for a flexible pipe joint structure that can be installed rapidly while guaranteeing structural strength and leakage rate.

Disclosure of Invention

Based on this, it is necessary to provide a joint structure for flexible pipelines of wind generating sets to solve the technical problems that the existing flexible pipeline joint is connected or the connecting steps are complex or the connection is unstable through an inner pipe, an outer pressing block, a first thread section and a second thread section structure.

In order to solve the problems in the prior art, the invention adopts the following technical scheme:

the utility model provides a wind generating set flexible joint structure for pipeline, includes connector and fixed cover, and the connector is equipped with two, and two connectors are installed at joint structure both ends, and the axis of connector and joint structure's axis collineation, the connector include inner tube and outer briquetting, and the inner tube is fixed to be set up in connector port department, and outer briquetting is made for elastic material, and outer briquetting is fixed to be set up at the inner tube outer lane, and connector surface fixed is provided with first screw thread section; the fixed cover is equipped with two, and two fixed covers slidable mounting respectively are on two connector, and the axis of fixed cover and the axis collineation of connector, fixed cover include the second screw thread section, and the second screw thread section is fixed to be set up at fixed cover internal surface, when fixed cover to the connector tip outside slip, first screw thread section and second screw thread section threaded connection continue to rotate fixed cover, and fixed cover can extrude outer briquetting, makes outer briquetting and inner tube support tightly.

Preferably, the connector structure further comprises a transition pipe, wherein the transition pipe is fixedly arranged at the middle position of the connector structure, and two ends of the transition pipe are respectively and rotatably connected with the two connectors.

Preferably, the transition pipe comprises two rotary sealing rings, the two rotary sealing rings are respectively sleeved at two ends of the transition pipe, and the rotary sealing rings are positioned at the joint of the connector and the transition pipe.

Preferably, the transition pipe further comprises a corrugated pipe, the corrugated pipe is fixedly arranged in the middle of the transition pipe, and the corrugated pipe is made of flexible corrugated pipes.

Preferably, the transition pipe further comprises a spring, and two ends of the spring are fixedly connected with two ends of the transition pipe respectively.

Preferably, the transition pipe comprises two elastic ropes, two ends of the two elastic ropes are fixedly connected with two ends of the transition pipe respectively, and the two elastic ropes are symmetrically distributed along the axis of the transition pipe.

Preferably, the fixing sleeve further comprises anti-slip strips, and the anti-slip strips are uniformly distributed on the outer surface of the fixing sleeve.

Preferably, the connector further comprises a sealing ring, the sealing ring is arranged on the inner tube, and when the inner tube is abutted against the outer pressing block, the sealing ring is positioned at the joint of the inner tube and the outer pressing block.

Preferably, the inner tube is including the sand grip, and the sand grip is equipped with a plurality ofly, and a plurality of sand grips are distributed along the outer wall equidistance of inner tube, and outer briquetting is including the recess, and the recess is equipped with a plurality ofly, and a plurality of recesses are distributed along the inner wall equidistance of outer briquetting, and when inner tube and outer briquetting subsides, sand grip and recess just cooperate.

Preferably, the connector further comprises a limiting ring, the limiting ring is fixedly arranged on the outer surface of the connector, and when the fixing sleeve rotates to the state that the end face is level with the end face of the connector, the limiting ring is just abutted against the fixing sleeve.

Compared with the prior art, the beneficial effects of this application are:

1. the utility model provides a pair of wind generating set flexible joint structure for pipeline, it has realized the function of the flexible pipe of quick fixation wind generating set through inner tube, outer briquetting, first screw thread section and second screw thread section, has solved current flexible pipeline joint and has connected or connect the step complicacy, or connect unstable defect.

2. The utility model provides a pair of wind generating set flexible line way is with joint structure, it has realized the function of reinforcing joint structure torsion resistance through the transition pipe, has solved unable anti-torsion, receives the defect that torsion power influences probably destroys self structure.

3. The utility model provides a pair of wind generating set flexible line way is with joint structure, it is in order to realize can buckle the joint structure in order to adapt to the function of more complicated installation environment through the bellows, has solved unable anti-torsion, receives the defect that torsion power influences probably destroys self structure.

4. The utility model provides a pair of wind generating set flexible piping is with joint structure, it is in order to realize can buckle the joint structure in order to adapt to the function of more complicated installation environment through the bellows, thereby has solved the unable defect of bending and can't adapt to more complicated installation environment of transition pipe.

5. The utility model provides a pair of wind generating set flexible joint structure for pipeline, it has realized the function of reinforcing tensile strength through the spring, has solved the transition pipe and has had the defect that tensile ability is low.

6. The utility model provides a pair of wind generating set flexible joint structure for pipeline, it has realized the function of reinforcing tensile strength through the elastic cord, has solved the transition pipe and has had the defect that tensile ability is low.

7. The utility model provides a pair of wind generating set flexible pipeline is with joint structure, it has realized improving the function of fixed cover surface antiskid nature through the antislip strip, has solved the fixed cover and still has the defect that the phenomenon of skidding appears occasionally when rotating fixed cover.

8. The utility model provides a pair of wind generating set flexible joint structure for pipeline, it has realized the function of reinforcing inner tube and outer briquetting junction leakproofness through the sealing washer, has solved inner tube and outer briquetting still have the defect that sealing performance is relatively poor when fixed hose.

9. The utility model provides a pair of wind generating set flexible joint structure for pipeline, it has realized improving the function of inner tube and outer briquetting snap-in force through sand grip and recess cooperation, has solved inner tube and outer briquetting still have the defect that the snap-in force is insufficient when fixed hose.

10. The utility model provides a pair of wind generating set flexible pipeline is with joint structure, it has realized the function of the fixed cover displacement scope of restriction through the spacing ring, has solved the defect that excessively rotates fixed cover and probably can make it drop.

Drawings

Fig. 1 is a perspective view of a first embodiment;

FIG. 2 is a front view of the connector of the present invention;

FIG. 3 is a perspective cross-sectional view of A-A of FIG. 2;

FIG. 4 is an exploded perspective view of the first embodiment transition duct;

FIG. 5 is a perspective view of a second embodiment transition duct;

fig. 6 is a perspective view of a second embodiment;

fig. 7 is an exploded perspective view of the first embodiment;

the reference numerals in the figures are:

1-a connector; 1 A-An inner tube; 1a 1-convex strips; 1 b-an outer briquetting; 1b 1-grooves; 1 c-a first thread segment; 1 d-a sealing ring; 1 e-limiting rings;

2-fixing the sleeve; 2 A-A second thread segment; 2 b-cleats;

3-transition pipe; 3 a-rotating the sealing ring; 3 b-bellows; 3 c-a spring; 3 d-bungee cord.

Detailed Description

The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.

In order to solve the technical problem that the existing flexible pipe joint connection is either complicated in connection steps or unstable in connection, as shown in fig. 1-4 and fig. 7, a first embodiment is provided:

as shown in fig. 1-3, 6 and 7:

the utility model provides a wind generating set flexible joint structure for pipeline, including connector 1 and fixed cover 2, connector 1 is equipped with two, and two connectors 1 are installed at joint structure both ends, and the axis of connector 1 and the axis collineation of joint structure, connector 1 include inner tube 1a and outer briquetting 1b, and inner tube 1a is fixed to be set up in connector 1 port department, and outer briquetting 1b is made for elastic material, and outer briquetting 1b is fixed to be set up in inner tube 1a outer lane, and connector 1 surface is fixed to be provided with first screw thread section 1c; the fixed cover 2 is equipped with two, and two fixed cover 2 slidable mounting respectively are on two connectors 1, and the axis of fixed cover 2 and the axis collineation of connector 1, and fixed cover 2 includes second screw thread section 2a, and second screw thread section 2a is fixed to be set up at fixed cover 2 internal surface, and when fixed cover 2 slides outside the connector 1 tip, first screw thread section 1c and second screw thread section 2a threaded connection continue to rotate fixed cover 2, and fixed cover 2 can extrude outer briquetting 1b, makes outer briquetting 1b and inner tube 1a support tightly.

Based on the embodiment, the connector 1 is matched with the fixed sleeve 2, so that the problem is solved; the method comprises the steps that an operator firstly sleeves the end part of a hose to be connected on the outer ring of an inner tube 1a to preliminarily fix the hose to be connected on the outer ring of the inner tube 1a, then slides a fixing sleeve 2, enables a second threaded section 2a to be in contact with a first threaded section 1c, rotates the fixing sleeve 2, enables the fixing sleeve 2 to continuously move towards the end part of a connector 1, presses an outer pressing block 1b on the end part of the fixing sleeve 2 along with the movement of the fixing sleeve 2, enables the outer pressing block 1b to approach the inner tube 1a, fixes the hose through the abutting of the inner tube 1a and the outer pressing block 1b, and completes preliminary fixing after the fixing sleeve 2 is rotated to a designated position, slides the fixing sleeve 2 which is slidably installed at one end, enables the second threaded section 2a at one end to be in contact with the first threaded section 1c, rotates the fixing sleeve 2, and completes connection of the hose and the connector; compared with the prior art, the hose is clamped through the cooperation of inner tube 1a and outer briquetting 1b, can be fixed more stably with the hose, and the leakproofness is better, and fixes outer briquetting 1b through fixed cover 2, need not complicated instrument and carries out a plurality of steps, only needs to rotate fixed cover 2 just can fix the hose on the connector 1.

Further, the present application still has the defect that the structure of the present application can not be damaged due to the influence of torsion, and in order to solve the problem, as shown in fig. 1:

the transition pipe 3 is fixedly arranged at the middle position of the joint structure, and two ends of the transition pipe 3 are respectively and rotatably connected with the two connectors 1.

Based on the above embodiment, the present application realizes the function of the connector 1 rotating relative to the transition pipe 3 along the axis through the transition pipe 3, thereby solving the above problem. The method comprises the steps that an operator firstly sleeves the end part of a hose to be connected on the outer ring of an inner tube 1a to preliminarily fix the hose to be connected on the outer ring of the inner tube 1a, then slides a fixing sleeve 2, enables a second threaded section 2a to be in contact with a first threaded section 1c, rotates the fixing sleeve 2, enables the fixing sleeve 2 to continuously move towards the end part of a connector 1, presses an outer pressing block 1b on the end part of the fixing sleeve 2 along with the movement of the fixing sleeve 2, enables the outer pressing block 1b to approach the inner tube 1a, fixes the hose through the abutting of the inner tube 1a and the outer pressing block 1b, and completes preliminary fixing after the fixing sleeve 2 is rotated to a designated position, slides the fixing sleeve 2 which is slidably installed at one end, enables the second threaded section 2a at one end to be in contact with the first threaded section 1c, rotates the fixing sleeve 2, and completes connection of the hose and the connector; the torsional capacity of the joint structure is improved through the rotary connection of the connector 1 and the transition pipe 3, so that the joint part can rotate when being twisted, the torsional force is eliminated, the hose is more convenient to connect, the problem that the joint bears the torsional force for a long time due to the fact that an angle difference exists between hoses after the two ends are connected is avoided, the tightness of the joint is reduced, the leakage condition occurs, and the normal use of the joint is affected.

Further, the fixing sleeve 2 provided by the application still has the defect of poor sealing performance and incapability of adapting to high-pressure medium communication, and in order to solve the technical problem, as shown in fig. 4, 5 and 7:

the transition pipe 3 includes rotatory sealing washer 3a, and rotatory sealing washer 3a is equipped with two, and two rotatory sealing washer 3a cup joint respectively at transition pipe 3 both ends, and rotatory sealing washer 3a is located connector 1 and transition pipe 3 junction.

Based on the above embodiment, the function of improving the tightness of the joint between the connector 1 and the fixed sleeve 2 while improving the rotating smoothness of the connector 1 is realized through the rotary sealing ring 3a, so that the problem is solved. The rotary sealing ring 3a is specifically a star-shaped O-shaped combined piston sealing ring; the sealing ring has the advantages of high sealing efficiency, integrates low friction and high elasticity, has dual safety, can adapt to high-pressure application occasions, has good sliding performance, low permeability and good sliding performance when being communicated with a gas medium, has no creeping, has a simple groove structure, and is simple to install; the sealing ring is filled with polytetrafluoroethylene, the 0-shaped closure is preferably made of nitrile rubber or fluororubber, and the star-shaped ring is preferably made of Ding rubber or fluororubber.

Further, the transition pipe 3 provided in the present application still has an inability to bend and thus cannot adapt to a more complex installation environment, and in order to solve this problem, as shown in fig. 4, 5 and 7:

the transition pipe 3 further comprises a corrugated pipe 3b, the corrugated pipe 3b is fixedly arranged in the middle of the transition pipe 3, and the corrugated pipe 3b is made of flexible corrugated pipes.

Based on the above embodiment, the present application solves the above problem by providing the bellows 3b with a function of bending the joint structure to adapt to a more complex installation environment. The method comprises the steps that an operator firstly sleeves the end part of a hose to be connected on the outer ring of an inner tube 1a to preliminarily fix the hose to be connected on the outer ring of the inner tube 1a, then slides a fixing sleeve 2, enables a second threaded section 2a to be in contact with a first threaded section 1c, rotates the fixing sleeve 2, enables the fixing sleeve 2 to continuously move towards the end part of a connector 1, presses an outer pressing block 1b on the end part of the fixing sleeve 2 along with the movement of the fixing sleeve 2, enables the outer pressing block 1b to approach the inner tube 1a, fixes the hose through the abutting of the inner tube 1a and the outer pressing block 1b, and completes preliminary fixing after the fixing sleeve 2 is rotated to a designated position, slides the fixing sleeve 2 which is slidably installed at one end, enables the second threaded section 2a at one end to be in contact with the first threaded section 1c, rotates the fixing sleeve 2, and completes connection of the hose and the connector; when the joint is subjected to external pressure, corresponding deformation can be generated to offset the pressure; the internal structure of the wind driven generator is complex, so that the installation environment of the joint structure is relatively complex, and one end of the corrugated pipe 3b is arranged in the middle of the transition pipe 3, so that the joint structure can adapt to the more complex installation environment; bellows 3b also has a number of advantages: the layout is peculiar, the external pressure resistance is high, the striking resistance is realized, the ring flexibility is realized, the inner wall is small in greasiness friction resistance, and the pipe with the same inner diameter can pass through larger flow; the socket joint is flexibly connected, so that the connection is convenient, the reliability is high, and the socket joint is not easy to expose; the weight is light, the construction is quick, and the falling degree is low; long service life. Compared with the prior art, the deformation characteristic of the connector structure enables the connector structure to have buffering capacity to external force, so that the connector structure can adapt to more complex use environments.

Further, the transition pipe 3 provided in the present application has a defect of low tensile strength, and in order to solve this problem, as shown in fig. 4 and 7:

the transition pipe 3 also comprises a spring 3c, and two ends of the spring 3c are fixedly connected with two ends of the transition pipe 3 respectively.

Based on the above embodiment, the present application realizes the function of enhancing the tensile strength by the springs 3c, thereby solving the above problems. The method comprises the steps that an operator firstly sleeves the end part of a hose to be connected on the outer ring of an inner tube 1a to preliminarily fix the hose to be connected on the outer ring of the inner tube 1a, then slides a fixing sleeve 2, enables a second threaded section 2a to be in contact with a first threaded section 1c, rotates the fixing sleeve 2, enables the fixing sleeve 2 to continuously move towards the end part of a connector 1, presses an outer pressing block 1b on the end part of the fixing sleeve 2 along with the movement of the fixing sleeve 2, enables the outer pressing block 1b to approach the inner tube 1a, fixes the hose through the abutting of the inner tube 1a and the outer pressing block 1b, and completes preliminary fixing after the fixing sleeve 2 is rotated to a designated position, slides the fixing sleeve 2 which is slidably installed at one end, enables the second threaded section 2a at one end to be in contact with the first threaded section 1c, rotates the fixing sleeve 2, and completes connection of the hose and the connector; when the joint structure receives external pulling force to influence, bellows 3b can take place corresponding deformation, but in order to prevent bellows 3b transition bending and reduce self structural strength, cause the structure to be destroyed, lead to appearing leaking, consequently, set up spring 3c and be used for increasing the structural strength of transition pipe 3, when receiving external pressure, spring 3c can provide elasticity and take place corresponding deformation and offset pulling force, avoid pulling force directly to act on transition pipe 3, influence the life of transition pipe 3, thereby influence joint structure's leakproofness, cause leakage rate increase, reduce joint structure's quality by a wide margin, alleviate impact and absorb vibration through spring 3 c.

Further, the fixing sleeve 2 provided in the present application still has the defect that the slipping phenomenon occurs occasionally when the fixing sleeve 2 is rotated, so as to solve the problem, as shown in fig. 2 and 7:

the fixed sleeve 2 further comprises anti-slip strips 2b, and the anti-slip strips 2b are uniformly distributed on the outer surface of the fixed sleeve 2.

Based on the above embodiment, the present application realizes the function of improving the outer surface anti-slip property of the fixed sleeve 2 through the anti-slip strip 2b, thereby solving the above problem. When an operator rotates or slides the fixed sleeve 2, the fixed sleeve 2 is held by hands, and the friction coefficient of the outer surface of the fixed sleeve 2 is enhanced through the anti-slip strips 2b, so that the anti-slip performance of the outer side surface of the fixed sleeve 2 is improved, and the phenomenon that the operator slips when rotating the fixed sleeve 2 is avoided.

Further, the inner tube 1a and the outer pressing block 1b provided in the present application still have a defect of poor sealing performance when fixing the hose, and in order to solve this problem, as shown in fig. 3 and 7:

the connector 1 further comprises a sealing ring 1d, the sealing ring 1d is arranged on the inner tube 1a, and when the inner tube 1a is abutted against the outer pressing block 1b, the sealing ring 1d is positioned at the joint of the inner tube 1a and the outer pressing block 1 b.

Based on the above embodiment, the present application realizes the function of enhancing the sealability of the joint of the inner tube 1a and the outer pressing block 1b through the sealing ring 1d, thereby solving the above problems. Because the inner tube 1a and the outer briquetting 1b still have the risk of leaking when fixing the hose, when the intercommunication high pressure medium, the phenomenon of leaking probably appears in the junction of inner tube 1a and outer briquetting 1b, in order to avoid this problem, has set up sealing washer 1d in the junction of inner tube 1a and outer briquetting 1b for reinforcing the sealing performance of inner tube 1a and outer briquetting 1b junction, when interface structure receives external impact, sealing washer 1d can take place slight deformation absorption vibration, avoids leaking.

Further, the inner tube 1a and the outer pressing block 1b provided in the present application still have a defect of insufficient biting force when fixing the hose, and in order to solve this problem, as shown in fig. 3:

the inner tube 1a is equipped with a plurality of sand grip 1a1 including sand grip 1a1, sand grip 1a1 along the outer wall equidistance distribution of inner tube 1a, and outer briquetting 1b is equipped with a plurality of recess 1b1 including recess 1b1, recess 1b1 along the inner wall equidistance distribution of outer briquetting 1b, when inner tube 1a and outer briquetting 1b laminating, sand grip 1a1 and recess 1b1 just cooperate.

Based on the above embodiment, the present application realizes the function of improving the biting force of the inner tube 1a and the outer pressing block 1b by the cooperation of the convex strips 1a1 and the grooves 1b1, thereby solving the above problems. The end part of the hose to be connected is sleeved with the outer ring of the inner tube 1a by an operator, the hose to be connected is primarily fixed on the outer ring of the inner tube 1a, then the fixing sleeve 2 is slid, the second thread section 2a is contacted with the first thread section 1c, then the fixing sleeve 2 is rotated, the fixing sleeve 2 is continuously moved towards the end part of the connector 1, the end part of the fixing sleeve 2 extrudes the outer pressing block 1b along with the movement of the fixing sleeve 2, the outer pressing block 1b is enabled to approach the inner tube 1a, the hose is fixed through the abutting of the inner tube 1a and the outer pressing block 1b, then the contact surface of the hose and the connector 1 is increased through the matching of the convex strip 1a1 and the groove 1b, the friction force between the hose and the connector 1 is increased, and the biting force of the inner tube 1a and the outer pressing block 1b on the hose is improved.

Further, the connector 1 and the fixing sleeve 2 provided in the present application still have the defect that the fixing sleeve 2 is separated from the connector 1 after being excessively rotated, so as to solve the problem, as shown in fig. 3:

the connector 1 further comprises a limiting ring 1e, the limiting ring 1e is fixedly arranged on the outer surface of the connector 1, and when the fixed sleeve 2 rotates to the state that the end face is level with the end face of the connector 1, the limiting ring 1e just abuts against the fixed sleeve 2.

Based on the above embodiment, the present application realizes the function of limiting the displacement range of the fixed sleeve 2 through the stop collar 1e, thereby solving the above problem. When the hose needs to be fixed to the joint structure, an operator sleeves the hose on the inner tube 1a, then rotates the fixed sleeve 2 to fix the hose, in order to prevent the fixed sleeve 2 from being excessively rotated to fall off from the fixed sleeve 2, so that parts are lost, normal use of the joint structure is affected, the limiting ring 1e is arranged on the joint 1, when the fixed sleeve 2 rotates to the end face to be level with the end face of the joint 1, the limiting ring 1e just abuts against the fixed sleeve 2, the fixed sleeve 2 is prevented from moving towards the end face of the joint 1 again, the joint structure is unstable in work, and the situation that the joint structure falls off when not working is prevented.

As shown in fig. 5 and 6, a second embodiment of the transition duct 3 is provided:

the transition pipe 3 comprises two elastic ropes 3d, wherein two ends of the two elastic ropes 3d are fixedly connected with two ends of the transition pipe 3 respectively, and the two elastic ropes 3d are symmetrically distributed along the axis of the transition pipe 3.

Based on the above embodiment, the present application realizes the function of enhancing the tensile property by the elastic cord 3d, thereby solving the above problems. The method comprises the steps that an operator firstly sleeves the end part of a hose to be connected on the outer ring of an inner tube 1a to preliminarily fix the hose to be connected on the outer ring of the inner tube 1a, then slides a fixing sleeve 2, enables a second threaded section 2a to be in contact with a first threaded section 1c, rotates the fixing sleeve 2, enables the fixing sleeve 2 to continuously move towards the end part of a connector 1, presses an outer pressing block 1b on the end part of the fixing sleeve 2 along with the movement of the fixing sleeve 2, enables the outer pressing block 1b to approach the inner tube 1a, fixes the hose through the abutting of the inner tube 1a and the outer pressing block 1b, and completes preliminary fixing after the fixing sleeve 2 is rotated to a designated position, slides the fixing sleeve 2 which is slidably installed at one end, enables the second threaded section 2a at one end to be in contact with the first threaded section 1c, rotates the fixing sleeve 2, and completes connection of the hose and the connector; when the joint structure receives external pulling force influence, the elastic rope 3d can provide elasticity and extend to offset pulling force, avoid pulling force to directly act on the transition pipe 3, cause destructive influence to the structure of the transition pipe 3, compare in embodiment 1, the flexibility of buckling of joint structure is strengthened through reducing tensile resistance by a small margin to torsional property, and the elastic rope 3d is smaller compared with spring 3c volume, the texture is softer, can guarantee the flexibility of buckling of joint structure when improving joint structure's tensile ability, in order to improve joint structure's adaptability to installation environment.

The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a wind generating set flexible joint structure for pipeline, a serial communication port, including connector (1) and fixed cover (2), connector (1) are equipped with two, two connector (1) are installed at joint structure both ends, the axis of connector (1) is collinearly with the axis of joint structure, connector (1) include inner tube (1 a) and outer briquetting (1 b), inner tube (1 a) is fixed to be set up in connector (1) port department, outer briquetting (1 b) are elastic material and make, outer briquetting (1 b) are fixed to be set up at inner tube (1 a) outer lane, connector (1) surface is fixed to be provided with first screw thread section (1 c); the two fixing sleeves (2) are arranged, the two fixing sleeves (2) are respectively and slidably arranged on the two connectors (1), the axis of the fixing sleeve (2) is collinear with the axis of the connector (1), the fixing sleeve (2) comprises a second thread section (2 a), the second thread section (2 a) is fixedly arranged on the inner surface of the fixing sleeve (2), when the fixing sleeve (2) slides outwards towards the end part of the connector (1), the first thread section (1 c) is in threaded connection with the second thread section (2 a), the fixing sleeve (2) is continuously rotated, the fixing sleeve (2) can extrude the outer pressing block (1 b), and the outer pressing block (1 b) is abutted against the inner pipe (1 a);

the novel connecting structure further comprises a transition pipe (3), the transition pipe (3) is fixedly arranged at the middle position of the joint structure, and two ends of the transition pipe (3) are respectively and rotatably connected with the two connectors (1).

2. The joint structure for the flexible pipeline of the wind generating set according to claim 1, wherein the transition pipe (3) comprises two rotary sealing rings (3 a), the two rotary sealing rings (3 a) are respectively sleeved at two ends of the transition pipe (3), and the rotary sealing rings (3 a) are positioned at the joint of the connector (1) and the transition pipe (3).

3. The joint structure for flexible pipelines of wind generating sets according to claim 1, wherein the transition pipe (3) further comprises a corrugated pipe (3 b), the corrugated pipe (3 b) is fixedly arranged at the middle position of the transition pipe (3), and the corrugated pipe (3 b) is made of flexible corrugated pipe.

4. The joint structure for flexible pipelines of wind generating sets according to claim 1, wherein the transition pipe (3) further comprises a spring (3 c), and two ends of the spring (3 c) are fixedly connected with two ends of the transition pipe (3) respectively.

5. The joint structure for the flexible pipeline of the wind generating set according to claim 1, wherein the transition pipe (3) comprises two elastic ropes (3 d), two ends of the two elastic ropes (3 d) are fixedly connected with two ends of the transition pipe (3) respectively, and the two elastic ropes (3 d) are symmetrically distributed along the axis of the transition pipe (3).

6. The connector structure for flexible pipelines of wind generating sets according to claim 1, wherein the fixed sleeve (2) further comprises anti-slip strips (2 b), and the anti-slip strips (2 b) are uniformly distributed on the outer surface of the fixed sleeve (2).

7. The joint structure for flexible pipelines of wind generating sets according to claim 1, wherein the joint (1) further comprises a sealing ring (1 d), the sealing ring (1 d) is arranged on the inner pipe (1 a), and when the inner pipe (1 a) is abutted against the outer pressing block (1 b), the sealing ring (1 d) is positioned at the joint of the inner pipe (1 a) and the outer pressing block (1 b).

8. The joint structure for a flexible pipeline of a wind generating set according to claim 1, wherein the inner pipe (1 a) comprises a plurality of raised strips (1 a 1), the raised strips (1 a 1) are arranged, the raised strips (1 a 1) are distributed equidistantly along the outer wall of the inner pipe (1 a), the outer pressing block (1 b) comprises grooves (1 b 1), the grooves (1 b 1) are arranged in a plurality, the grooves (1 b 1) are distributed equidistantly along the inner wall of the outer pressing block (1 b), and when the inner pipe (1 a) is attached to the outer pressing block (1 b), the raised strips (1 a 1) are just matched with the grooves (1 b 1).

9. The connector structure for the flexible pipeline of the wind generating set according to claim 1, wherein the connector (1) further comprises a limiting ring (1 e), the limiting ring (1 e) is fixedly arranged on the outer surface of the connector (1), and when the fixing sleeve (2) rotates to the state that the end face is level with the end face of the connector (1), the limiting ring (1 e) is just abutted against the fixing sleeve (2).