CN219712589U - Anti-loosening device for movable joint of pipeline - Google Patents
Anti-loosening device for movable joint of pipeline Download PDFInfo
- Publication number
- CN219712589U CN219712589U CN202320673685.0U CN202320673685U CN219712589U CN 219712589 U CN219712589 U CN 219712589U CN 202320673685 U CN202320673685 U CN 202320673685U CN 219712589 U CN219712589 U CN 219712589U
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- China
- Prior art keywords
- butt joint
- sleeve
- pipeline
- limiting
- locking
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- 210000001503 joint Anatomy 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims 1
- 230000003827 upregulation Effects 0.000 claims 1
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides a pipeline movable joint anti-loosening device which comprises a connecting sleeve and a butt joint sleeve which are respectively sleeved at two pipe ends at a pipeline movable joint, wherein hexagonal through holes matched with a pipeline with a hexagonal outer wall cross section are formed in the connecting sleeve and the butt joint sleeve, round holes for accommodating the connecting sleeve are formed in the butt joint sleeve and coaxial with the hexagonal through holes, a limiting gear ring is arranged on the outer wall of the connecting sleeve, limiting teeth which can be inserted into gaps between two adjacent teeth in the limiting gear ring are arranged in the butt joint sleeve in a radial interaction manner, an elastic structure for applying inward elastic force to the limiting teeth is arranged in the butt joint sleeve, an adjusting hole capable of outwards stirring the limiting teeth is formed in the outer wall of the butt joint sleeve, and at least one of the butt joint sleeve and the connecting sleeve is fixed on a pipeline. The utility model has the effect of improving the vibration resistance and sealing performance of the movable joint of the pipeline.
Description
Technical Field
The utility model relates to the technical field of anti-loosening devices, in particular to an anti-loosening device for a movable joint of a pipeline.
Background
The speed regulator system and the medium-low pressure air supply system of the hydropower station are provided with a large number of pipeline movable joints, and the vibration generated during the operation of the unit can lead to loosening of the threaded joints of the pipeline, so that pressure oil gas injection is caused, and the safety of the unit equipment and personnel is seriously influenced. Especially, the control pipeline joint of the speed regulator system is loosened to cause sealing failure, so that the control system is possibly out of pressure to cause emergency shutdown of the unit, the safety of the unit equipment is affected, meanwhile, impact is caused to a power grid, and great economic loss is caused.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a loose-proof device for a movable joint of a pipeline, which solves the problem that the movable joint in the prior art is easy to loosen due to vibration, so that pressure oil gas leaks.
According to the embodiment of the utility model, the anti-loosening device for the pipeline movable joint comprises a connecting sleeve and a butt joint sleeve which are respectively sleeved at two pipe ends at the pipeline movable joint, hexagonal through holes matched with a pipeline with a hexagonal outer wall cross section are formed in the connecting sleeve and the butt joint sleeve, round holes for accommodating the connecting sleeve are formed in the butt joint sleeve and coaxial with the hexagonal through holes, a limiting gear ring is arranged on the outer wall of the connecting sleeve, limiting teeth which can be inserted into gaps between two adjacent teeth in the limiting gear ring are arranged in the butt joint sleeve in a radial interaction manner, an elastic structure for applying inward elasticity to the limiting teeth is arranged in the butt joint sleeve, an adjusting hole capable of outwards stirring the limiting teeth is formed in the outer wall of the butt joint sleeve, and at least one of the butt joint sleeve and the connecting sleeve is fixed on the pipeline.
Preferably, the elastic structure comprises a hinge rod fixedly arranged on the outer wall of the butt joint sleeve, a locking block is rotationally connected to the movable end of the hinge rod, the middle part of the locking block is connected with the hinge rod, a limiting spring is connected between one end of the locking block and the outer wall of the butt joint sleeve, the limiting teeth are fixed to the other end of the locking block, and when the limiting teeth are in contact with the limiting gear ring, the limiting spring is in a pressed state, and the limiting teeth are positioned in the adjusting hole.
Preferably, one end of the butt joint sleeve is coaxially and fixedly connected with a locking sleeve, a hexagonal through hole which is coaxial with the butt joint sleeve and has the same size is formed in the locking sleeve, a locking bolt is connected with the side wall of the locking sleeve in a threaded manner, and the locking bolt is perpendicular to the axis of the locking sleeve.
Compared with the prior art, the utility model has the following beneficial effects:
the connecting sleeve and the butt joint sleeve are respectively connected to the end parts of the pipelines at two sides of the movable joint, the hexagonal through holes are matched with the pipelines, after the two pipelines are in butt joint and screwed up, the connecting sleeve slides into the butt joint sleeve, and is matched with the limiting gear ring through the limiting teeth, the limiting teeth are inserted into gaps between two adjacent teeth in the limiting gear ring, and the elastic structure is used for keeping the contact between the limiting teeth and the limiting gear ring, so that the connecting sleeve and the butt joint sleeve cannot rotate relatively, the locking of the pipelines at two sides of the movable joint in threaded connection is realized, and the tightness of the movable joint is improved.
Drawings
Fig. 1 is a front view of a connector according to an embodiment of the present utility model.
Fig. 2 is a front view of a locking assembly according to an embodiment of the present utility model.
Fig. 3 is a top view of a connector according to an embodiment of the present utility model.
Fig. 4 is a top view of a locking assembly according to an embodiment of the present utility model.
In the above figures: 1. connecting sleeves; 2. limiting the gear ring; 3. a locking sleeve; 4. a butt joint sleeve; 5. an adjustment aperture; 6. a locking block; 7. a locking bolt; 8. a hinge rod; 9. a limiting spring; 10. and a limit tooth.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1-4, to improve the vibration-proof and anti-loosening performance of a union in the form of a threaded connection. The utility model provides an anti-loosening device for a pipeline movable joint, which comprises a connecting sleeve 1 and a butt joint sleeve 4 which are respectively sleeved at two pipe ends at the pipeline movable joint, wherein the connecting sleeve 1 and the butt joint sleeve 4 are internally provided with hexagonal through holes matched with a pipeline with a hexagonal outer wall cross section, the butt joint sleeve 4 is internally provided with a round hole for accommodating the connecting sleeve 1, the round hole is coaxial with the hexagonal through holes, the outer wall of the connecting sleeve 1 is provided with a limiting gear ring 2, the inside of the butt joint sleeve 4 is interactively provided with limiting teeth 10 which can be inserted into the gaps between two adjacent teeth in the limiting gear ring 2, the inside of the butt joint sleeve 4 is provided with an elastic structure for applying inward elasticity to the limiting teeth 10, the outer wall of the butt joint sleeve 4 is provided with an adjusting hole 5 which can outwards stir the limiting teeth 10, and at least one of the butt joint sleeve 4 and the connecting sleeve 1 is fixed on a pipeline.
The butt joint sleeve 4 or the connecting sleeve 1 is fixedly connected to the pipeline, the other one of the two pipelines can axially slide along the pipeline, the two pipelines are connected through threads, fastening torque is applied, the limiting teeth 10 are outwards stirred through the adjusting holes 5, the connecting sleeve 1 slides into the butt joint sleeve 4, the limiting teeth 10 are loosened at the moment, the limiting teeth 10 are inserted into gaps between two adjacent teeth in the limiting gear ring 2 to form occlusion, the force applied to the limiting teeth 10 by the elastic structure towards the axis of the butt joint sleeve 4 is used for keeping stable contact between the limiting teeth 10 and the limiting gear ring 2, relative rotation cannot occur between the connecting sleeve 1 and the butt joint sleeve 4, and further, the two pipelines mounted by the connecting sleeve 1 and the butt joint sleeve 4 cannot relatively rotate, so that the tightness of the movable joint is ensured.
As shown in fig. 2 and 4, in order to realize the elastic structure, a force is applied to the limiting tooth 10 towards the axle center of the butt joint sleeve 4. The elastic structure comprises a hinge rod 8 fixedly arranged on the outer wall of the butt joint sleeve 4, a locking block 6 is rotatably connected to the movable end of the hinge rod 8, the middle of the locking block 6 is connected with the hinge rod 8, a limiting spring 9 is connected between one end of the locking block 6 and the outer wall of the butt joint sleeve 4, a limiting tooth 10 is fixed to the other end of the locking block 6, and when the limiting tooth 10 is in contact with the limiting gear ring 2, the limiting spring 9 is in a pressed state, and the limiting tooth 10 is located in the adjusting hole 5.
The retaining block 6 is in an L shape, the end part of the vertical section is provided with a limiting tooth 10, the middle part of the horizontal section is rotationally connected with the movable end of the hinging rod 8 through rotation, the movable end of the horizontal section is connected with a limiting spring 9, the other end of the limiting spring 9 is connected to the outer wall of the butting sleeve 4, and because the limiting spring 9 is in a pressed state, the limiting spring 9 exerts elastic force towards the axis of the butting sleeve 4 on the limiting tooth 10 through the retaining block 6, and after the connecting sleeve 1 slides into the butting sleeve 4, the limiting tooth 10 is inserted into a gap between two adjacent teeth in the limiting gear ring 2, so that engagement is realized. Before the connecting sleeve 1 enters the butt joint sleeve 4, the limiting spring 9 needs to be further compressed by pressing the locking block 6, so that the limiting teeth 10 move towards the outside of the adjusting hole 5.
As shown in fig. 2 and 4, the butt joint sleeve 4 is fixedly connected to the pipeline. One end of the butt joint sleeve 4 is coaxially and fixedly connected with a locking sleeve 3, a hexagonal through hole which is coaxial with the butt joint sleeve 4 and has the same size is formed in the locking sleeve 3, a locking bolt 7 is connected with the side wall of the locking sleeve 3 in a threaded manner, and the locking bolt 7 is perpendicular to the axis of the locking sleeve 3. Removing a locking bolt 7, sleeving the locking sleeve 3 and the butt joint sleeve 4 on the pipeline, attaching the inner walls of hexagonal through holes in the locking sleeve 3 and the butt joint sleeve 4 to the outer wall of the pipeline, screwing the two pipelines, sliding the connecting sleeve 1 sleeved on the other pipeline, and fixing the locking sleeve 3 and the butt joint sleeve 4 through the locking bolt 7 after the engagement of the limiting teeth and the limiting gear ring 2 is completed.
Claims (3)
1. A loose-proof device for a pipeline movable joint is characterized in that: including cover suit in adapter sleeve (1) and the butt joint cover (4) of two pipe ends of pipeline union department respectively, all set up in adapter sleeve (1) and butt joint cover (4) and be hexagonal pipeline complex hexagonal through hole in outer wall cross section, set up the round hole that is used for holding adapter sleeve (1) in butt joint cover (4), and the round hole is coaxial with hexagonal through hole, adapter sleeve (1) outer wall sets up spacing ring gear (2), radial interdynamic in butt joint cover (4) is provided with spacing tooth (10) in the clearance of adjacent two teeth in spacing ring gear (2), set up in butt joint cover (4) and apply inwards elastic construction to spacing tooth (10), set up regulation hole (5) that can outwards stir spacing tooth (10) to the butt joint cover (4) outer wall, at least one of butt joint cover (4) and adapter sleeve (1) is fixed in the pipeline.
2. The anti-loosening device for a movable joint of a pipeline as claimed in claim 1, wherein: the elastic structure comprises a hinge rod (8) fixedly arranged on the outer wall of the butt joint sleeve (4), a locking block (6) is rotatably connected to the movable end of the hinge rod (8), the middle of the locking block (6) is connected with the hinge rod (8), one end of the locking block (6) is connected with a limiting spring (9) between the outer wall of the butt joint sleeve (4), a limiting tooth (10) is fixed to the other end of the locking block (6), and when the limiting tooth (10) is in contact with the limiting gear ring (2), the limiting spring (9) is in a pressed state, and the limiting tooth (10) is located in the adjusting hole (5).
3. The anti-loosening device for a movable joint of a pipeline as claimed in claim 1, wherein: one end of the butt joint sleeve (4) is coaxially and fixedly connected with a locking sleeve (3), a hexagonal through hole which is coaxial with the butt joint sleeve (4) and has the same size is formed in the locking sleeve (3), a locking bolt (7) is connected to the side wall of the locking sleeve (3) in a threaded manner, and the locking bolt (7) is perpendicular to the axis of the locking sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320673685.0U CN219712589U (en) | 2023-03-30 | 2023-03-30 | Anti-loosening device for movable joint of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320673685.0U CN219712589U (en) | 2023-03-30 | 2023-03-30 | Anti-loosening device for movable joint of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219712589U true CN219712589U (en) | 2023-09-19 |
Family
ID=88005107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320673685.0U Active CN219712589U (en) | 2023-03-30 | 2023-03-30 | Anti-loosening device for movable joint of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219712589U (en) |
-
2023
- 2023-03-30 CN CN202320673685.0U patent/CN219712589U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |