CN209943747U - Limiting structure for limiting locking nut in pipeline connecting joint - Google Patents
Limiting structure for limiting locking nut in pipeline connecting joint Download PDFInfo
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- CN209943747U CN209943747U CN201920815439.8U CN201920815439U CN209943747U CN 209943747 U CN209943747 U CN 209943747U CN 201920815439 U CN201920815439 U CN 201920815439U CN 209943747 U CN209943747 U CN 209943747U
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- locking nut
- abutting
- central line
- screw rod
- limiting
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Abstract
The utility model discloses a be arranged in pipe coupling to carry out spacing limit structure for lock nut among joint, including the adapter sleeve, the installation cover is installed at the both ends of adapter sleeve, the surface threaded connection's of installation cover lock nut, lock nut is global goes up along a plurality of fixed blocks of its circumference even interval fixedly connected with, the regulation screw has been seted up along being on a parallel with lock nut central line direction on the fixed block, adjust screw department threaded connection and support tight screw rod, when lock nut so that the connecting tube is treated to the installation cover and press from both sides tight when sealing, support tight screw rod and towards the one end butt in the adapter sleeve on the adapter sleeve. The utility model discloses simple structure, convenient to use is swift, has avoided locking nut's not hard up, has improved locking nut's stability.
Description
Technical Field
The utility model relates to a limit structure, concretely relates to be arranged in carrying out spacing limit structure to lock nut among pipe connection connects.
Background
The movable joint is a common pipeline connecting piece which is convenient to assemble and disassemble and is widely applied to pipeline connection in multiple industries such as water supply pipelines, gas transmission pipelines and the like. The movable joint is generally composed of a nut, a cloud head and a butt joint, wherein the cloud head and the butt joint are used for connecting two sections of pipelines, the cloud head is connected with the butt joint through the nut in the middle, the connection and the disassembly of the two sections of pipelines are facilitated, and the installation and the maintenance are facilitated. However, the distance between two connected pipelines is required, and if the distance between the two pipelines is too large, the outer sleeve nut cannot be screwed tightly, so that poor sealing is caused; if the distance between two sections of pipelines is too small, the pipelines can be bent, and the pipeline is not suitable for the position with limited installation space.
In order to solve the technical problems, the inventor invents a pipeline connecting joint, which comprises a connecting sleeve formed by folding two half sleeves, wherein the two half sleeves are fixedly connected through a screw rod, the diameter of an inner hole of the connecting sleeve is larger than the outer diameter of a pipeline to be connected, connecting threads are respectively arranged on the inner hole of the connecting sleeve and the positions of the two ends of the inner hole, the two ends of the connecting sleeve along the direction of the central line are respectively provided with a mounting sleeve, the inner diameter of the mounting sleeve is in clearance fit with the outer diameter of the pipeline to be connected, a mounting thread extends from one end to the other end of the outer surface of the mounting sleeve along the direction of the central line, the mounting sleeve is composed of a straight line section and a reducing section which are coaxially arranged, the outer diameter of the reducing section is gradually increased along the direction of the central line, one end of the straight line section, which is far away, still the cover is equipped with rather than threaded connection in order to follow the lock nut that the adapter sleeve central line direction moved soon on the straightway, on the reducing section and be provided with many along reducing section length direction at even interval around its central line and extend to the bar mouth of the other end by its one end, bar mouth department is provided with along bar mouth length direction by the elastic rubber strip of bar mouth one end extension to the other end, elastic rubber strip and bar mouth bonding and sealed fit, when lock nut moved soon towards reducing section major diameter end direction, lock nut can extrude the reducing section so that the connecting tube is treated to the reducing section and press from both sides, and the reducing section can extrude so that it takes place elastic deformation butt on treating the connecting tube to the elastic rubber strip that is located bar mouth department. However, in the long-term use process, the vibration of the pipeline can easily cause the locking nut to loosen, so that the installation sleeve clamps and seals the pipeline, and leakage is easy to occur.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a locking nut of preventing not hard up, mention its limit structure of stability.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a limiting structure for limiting a locking nut in a pipeline connecting joint comprises a connecting sleeve, wherein two ends of the connecting sleeve are respectively provided with an installation sleeve, the outer surface of the installation sleeve is provided with external threads, one end of the installation sleeve is in threaded connection with an inner hole of the connecting sleeve, the installation sleeve is also sleeved with a locking nut in threaded connection with the installation sleeve, the installation sleeve is used for clamping and sealing a pipeline to be connected through the rotation of the locking threads on the installation sleeve, a plurality of fixing blocks are fixedly connected on the peripheral surface of the locking nut at uniform intervals along the circumferential direction of the locking nut, adjusting screw holes are formed in the fixing blocks along the direction parallel to the central line of the locking nut, abutting screws are in threaded connection with the adjusting screw holes, two ends of the abutting screws respectively extend out of the adjusting screw holes, the projection of the abutting screws along the central line direction of the connecting sleeve is positioned in the projection of the connecting sleeve along the central line, the screwing part is provided with at least two screwing surfaces which are parallel to each other and parallel to the central line of the abutting screw rod so as to facilitate the rotation of the abutting screw rod, and when the locking nut is used for clamping and sealing the pipeline to be connected by the mounting sleeve, the abutting screw rod abuts against the connecting sleeve towards one end of the connecting sleeve.
The utility model discloses in, when using, twist earlier lock nut so that the installation cover presss from both sides tightly connecting tube, then twist soon again and support tight screw rod and make it move soon towards the adapter sleeve direction, make to support tight screw rod and move on the adapter sleeve towards the one end butt of adapter sleeve, just so can carry on spacingly to lock nut, avoid its orientation to move soon to the opposite direction of locking, avoided lock nut's not hard up, improved lock nut's stability.
As optimization, the circumferential surface of the locking nut is provided with a circle of limiting grooves, one end of the locking nut, which is close to the connecting sleeve, is provided with a rotating ring which is matched with the central line of the locking nut in a surrounding manner, the fixing block is fixed on the rotating ring, the connecting sleeve is positioned on the abutting screw rod, and the projection of the abutting screw rod in the direction of the central line of the locking nut surrounds the rotating track of the central line of the locking nut in a concave manner, a plurality of limiting insertion holes are arranged on the rotating track of the central line of the locking nut in a surrounding manner, the abutting screw rod can be inserted into the limiting insertion holes and can be matched with the abutting screw rod in a sliding manner along the length direction of the abutting screw rod, the number of the limiting insertion holes.
As optimization, the abutting column which is formed by outward protrusion is coaxially arranged on the abutting screw rod and faces one end of the connecting sleeve, the outer diameter of the abutting column is consistent with that of the abutting screw rod, and one end, far away from the abutting screw rod, of the abutting column is a round head end.
To sum up, the beneficial effects of the utility model reside in that: the utility model discloses simple structure, convenient to use is swift, has avoided locking nut's not hard up, has improved locking nut's stability.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of a pipe coupling joint.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings by using the pipe connection joint of the present invention.
As shown in fig. 1, the pipe connecting joint in this embodiment includes a connecting sleeve formed by two half-sleeves 1 being closed together, the two half-sleeves 1 being fixedly connected by a screw, the diameter of the inner bore of the connecting sleeve being larger than the outer diameter of the pipe to be connected, the inner bore of the connecting sleeve being provided with connecting threads at positions at two ends thereof, the two ends of the connecting sleeve along the central line direction thereof being provided with mounting sleeves 2 respectively, the inner diameter of the mounting sleeve 2 being in clearance fit with the outer diameter of the pipe to be connected, the outer surface of the mounting sleeve 2 extending from one end thereof to the other end along the central line direction thereof being provided with mounting threads, the mounting sleeve 2 being composed of a straight line segment and a reducing segment coaxially provided, the outer diameter of the reducing segment gradually increasing along the central line direction thereof towards the direction away from the straight line segment, one end of the straight line segment away from the reducing segment being fitted with the connecting, still the cover is equipped with rather than threaded connection in order to follow the lock nut 3 that the adapter sleeve central line direction moved soon on the straightway, on the reducing section and around its central line even interval be provided with many along reducing section length direction by the bar mouth that its one end extends to the other end, bar mouth department is provided with along bar mouth length direction by the elastic rubber strip 4 of bar mouth one end extension to the other end, elastic rubber strip 4 bonds and sealed cooperation with the bar mouth, when lock nut 3 moves soon towards reducing section major diameter end direction, lock nut 3 can extrude the reducing section so that the connecting tube is treated to the reducing section, and the reducing section can extrude so that it takes place the elastic deformation butt on treating the connecting tube to the elastic rubber strip 4 that is located bar mouth department.
In this embodiment, in the hole of adapter sleeve and be close to respectively and wind in the position at its both ends the protruding round that is formed with of adapter sleeve central line keeps off ring 5, keep off the internal diameter of ring with the internal diameter of installing sleeve 2 is unanimous, connecting thread follows adapter sleeve central line direction by adapter sleeve mouth department extends to and keeps off ring 5 position, the one end tip butt that the reducing section was kept away from to the straightway is on keeping off ring 5.
In this specific embodiment, an annular rubber gasket having the same center line as the baffle ring 5 is disposed between the baffle ring 5 and the straight line segment, and the inner diameter and the outer diameter of the annular rubber gasket are respectively identical to the inner diameter and the outer diameter of the baffle ring 5.
In the specific embodiment, a plurality of fixing blocks 6 are fixedly connected to the circumferential surface of the locking nut 3 at uniform intervals along the circumferential direction, adjusting screw holes are formed in the fixing blocks 6 along the direction parallel to the central line of the locking nut 3, abutting screws 7 are connected to the adjusting screw holes through threads, two ends of the abutting screws 7 respectively extend out of the adjusting screw holes, the projections of the abutting screws 7 along the central line of the locking nut 3 are located in the projections of the connecting sleeve along the central line of the locking nut 3, an screwing part 8 which is coaxially arranged with the abutting screws 7 is formed at the end, away from the connecting sleeve, of the abutting screws 7 in a protruding manner, the screwing part 8 is provided with at least two screwing surfaces which are parallel to each other and parallel to the central line of the abutting screws 7 so as to facilitate the rotation of the abutting screws, when the lock nut 3 clamps the pipeline to be connected through the reducer section, the screw 7 is tightly abutted, and one end of the connecting sleeve is abutted against the connecting sleeve.
In this specific embodiment, a circle of limiting grooves are annularly arranged around the central line of the locking nut 3 on the circumferential surface of the locking nut 3 and at one end close to the connecting sleeve, a rotating ring 9 which is matched with the central line and is in rotation with the central line is arranged in the limiting grooves, the fixing block 6 is fixed on the rotating ring 9, the connecting sleeve is positioned on the abutting screw 7, a plurality of limiting insertion holes 10 are concavely arranged on the rotating track of the abutting screw 7 rotating around the central line of the locking nut 3 along the projection in the central line direction of the locking nut 3, the abutting screw 7 can be inserted into the limiting insertion holes 10 and can be matched with the abutting screw in a sliding manner along the length direction of the abutting screw, the number of the limiting insertion holes 10 is consistent with that of the abutting screw 7, and the plurality of limiting insertion holes 10 are uniformly arranged around.
In this embodiment, support tight screw rod 7 and towards in the one end coaxial of adapter sleeve is provided with the butt post that outside arch formed, the external diameter of butt post with the external diameter of supporting tight screw rod 7 is unanimous, and the butt post is kept away from the one end of supporting tight screw rod 7 is the button head end.
In the specific implementation process, twist the portion of changeing and keep away from support and follow on the one end terminal surface of screw rod support the concave installation screw that is equipped with of screw rod central line direction, twist the portion of changeing and keep away from support the one end of screw rod and be provided with wholly and be criss-cross rotation handle, rotate the central point of handle and put along perpendicular to rotation and wear to be equipped with an installation screw to place plane direction, rotate to pass through installation screw threaded connection in the installation screw so that rotate to fix twist in the portion of changeing, except that the use tool effect rotates on twisting the portion and supports the screw rod, can also rotate the operation to rotating by the hand.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The utility model provides a limit structure for lock nut carries on spacingly among pipe connection connects, includes the adapter sleeve, and the both ends of adapter sleeve are provided with the installation cover respectively, and the surface of installation cover is provided with external screw thread and its one end threaded connection in the hole of adapter sleeve, still overlaps on the installation cover to be equipped with the lock nut rather than threaded connection, moves soon on the installation cover through locking screw so that the connecting tube is treated to the installation cover and presss from both sides tight sealed, its characterized in that: the periphery of the locking nut is fixedly connected with a plurality of fixing blocks at even intervals along the circumferential direction of the locking nut, the fixing blocks are provided with adjusting screw holes along the direction parallel to the central line of the locking nut, the adjusting screw holes are in threaded connection with abutting screw rods, two ends of the abutting screw rods respectively extend out of the adjusting screw holes, the projections of the abutting screw rods along the central line direction of the locking nut are located in the projections of the connecting sleeve along the central line direction of the locking nut, one end of each abutting screw rod, which is far away from the connecting sleeve, is protruded to form a screwing part which is coaxially arranged with the abutting screw rod, the screwing part is provided with at least two screwing surfaces which are parallel to each other and parallel to the central line of the abutting screw rod so as to conveniently enable the abutting screw rod to rotate, and when the mounting sleeve is used for clamping.
2. The limiting structure for limiting the position of the lock nut in the pipe joint according to claim 1, wherein: the locking nut is arranged on the circumferential surface of the locking nut and close to the connecting sleeve, one end of the connecting sleeve winds the central line of the locking nut to form a circle of limiting grooves, rotating rings which are matched with the central line of the locking nut in a rotating mode are arranged in the limiting grooves, the fixing blocks are fixed on the rotating rings, the connecting sleeve is arranged on the abutting screw rods and winds the projection in the central line direction of the locking nut around the rotating track of the central line of the locking nut in a concave mode, a plurality of limiting insertion holes are formed in the rotating track of the central line of the locking nut in a concave mode, the abutting screw rods can be inserted into the limiting insertion holes and can be matched with the limiting screw rods in a sliding mode along the length direction of the abutting screw rods, the.
3. The limiting structure for limiting the position of the lock nut in the pipe joint according to claim 1, wherein: the abutting screw rod is coaxially provided with an abutting column which is formed by an outward bulge and faces one end of the connecting sleeve, the outer diameter of the abutting column is consistent with that of the abutting screw rod, and one end, far away from the abutting screw rod, of the abutting column is a round end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920815439.8U CN209943747U (en) | 2019-05-31 | 2019-05-31 | Limiting structure for limiting locking nut in pipeline connecting joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920815439.8U CN209943747U (en) | 2019-05-31 | 2019-05-31 | Limiting structure for limiting locking nut in pipeline connecting joint |
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| Publication Number | Publication Date |
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| CN209943747U true CN209943747U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920815439.8U Active CN209943747U (en) | 2019-05-31 | 2019-05-31 | Limiting structure for limiting locking nut in pipeline connecting joint |
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| CN (1) | CN209943747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113877788A (en) * | 2021-10-27 | 2022-01-04 | 盘锦金田塑业有限公司 | Multilayer film coating method and device for surface of BOPP film |
-
2019
- 2019-05-31 CN CN201920815439.8U patent/CN209943747U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113877788A (en) * | 2021-10-27 | 2022-01-04 | 盘锦金田塑业有限公司 | Multilayer film coating method and device for surface of BOPP film |
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