CN216555779U

CN216555779U - Tightness-adjustable polytetrafluoroethylene lining connecting piece for guide pipe

Info

Publication number: CN216555779U
Application number: CN202123123668.XU
Authority: CN
Inventors: 韩玉新; 范国华
Original assignee: Taizhou Sanxing Iron Flflon Co ltd
Current assignee: Taizhou Sanxing Iron Flflon Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-17
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a tightness-adjustable pipe tetrafluoro lining connecting piece which comprises a pipe, wherein a lining pipe is attached to the inner wall of the pipe, a connecting piece pipe body is sleeved outside the left end of the lining pipe, a first sealing ring is fixedly connected to the left side wall body of the lining pipe, fixing grooves are respectively and uniformly formed in the front side wall body and the back side wall body of the left end of the lining pipe in the transverse direction, locking shrinkage grooves are uniformly formed in the outer surface of the right end of the connecting piece pipe body in a surrounding mode, and a locking ring is sleeved outside the right end of the connecting piece pipe body. This pipe tetrafluoro inside lining connecting piece with adjustable elasticity, through the locking shrink groove that sets up, locking ring, bolt latch segment, locking bolt, fixed slot, lead to groove, fixed inserted bar, arm-tie, telescopic connection piece, negative pressure spring mutually support and can make things convenient for bushing pipe and connecting piece body to fix and dismantle, convenient operation, the steadiness is high, can carry out the regulation of steadiness and elasticity according to actual conditions simultaneously.

Description

Tightness-adjustable polytetrafluoroethylene lining connecting piece for guide pipe

Technical Field

The utility model relates to the technical field of a polytetrafluoroethylene lining connecting piece of a conduit, in particular to a polytetrafluoroethylene lining connecting piece of a conduit with adjustable tightness.

Background

The connecting piece is a mechanical connecting piece, is used for connecting soft or hard pipelines, and generally comprises two reinforcing steel bar wire heads with the same specification and right-handed threads and a connecting sleeve with right-handed internal threads, wherein one of the two reinforcing steel bars is a standard reinforcing steel bar wire head with the effective thread length of 1/2 and the length of the connecting sleeve; the other is a connecting sleeve with the effective thread length being the length of the connecting sleeve plus a long-thread steel bar thread head, the connecting sleeve is a standard connecting sleeve, the connecting piece on the market at present is a mechanical part for connecting the guide pipes, and the connecting piece is connected to the inner linings at the ends of the two guide pipes so as to achieve the purpose of connecting the guide pipes with each other.

In the patent application number of the Chinese utility model: CN201920595582.0 discloses a rapid connector for plastic liner of conduit, which comprises a conduit, a liner tube, a clamping block, a through hole, a connector, a fixing shaft, a connecting plate, a first sealing ring, a second sealing ring, a groove, an extending shaft, a connecting shaft, a pull rod, a baffle, a spring, a clamping rod and a clamping groove; the quick connecting piece for the plastic liner of the guide pipe is simple in structure and convenient to operate, the sealing between the guide pipe and the connecting piece is favorably improved through the design of the two sealing rings, the sealing rings are tightly pressed during installation, the operation difficulty is reduced, the sealing between the guide pipe and the connecting piece is favorably improved, and the quick connecting piece is convenient to use; the connecting piece is connected with the connecting pipe in a sleeved mode through the connecting piece and the inner lining on the pipe, the pipe is connected with the extending shaft in a sleeved mode, the connecting piece is limited through the rotating connecting piece, the connecting piece is connected quickly, operation convenience is improved, and quick disassembly between the connecting piece and the pipe is facilitated through movement of the pull rod. The fixed connection department of the device is not convenient for adjust the elasticity degree to can not carry out the elasticity according to actual conditions, the leakproofness is general simultaneously.

Therefore, there is a need for a tension adjustable teflon liner connector for a catheter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a tightness-adjustable polytetrafluoroethylene lining connecting piece for a conduit, which can effectively solve the problems in the background art.

In order to realize the purpose, the utility model adopts the technical scheme that:

a polytetrafluoroethylene lining connecting piece of a guide pipe with adjustable tightness comprises the guide pipe, wherein a lining pipe is attached to the inner wall of the guide pipe, a connecting piece pipe body is sleeved outside the left end of the lining pipe, a first sealing ring is fixedly connected to the left side wall body of the lining pipe, fixing grooves are respectively and uniformly formed in the front side and the back side wall body of the left end of the lining pipe, locking shrinkage grooves are uniformly formed in the outer surface of the right end of the connecting piece pipe body in a surrounding mode, a locking ring is sleeved outside the right end of the connecting piece pipe body, bolt locking blocks are symmetrically and fixedly connected to the front side and the back side of the upper end of the locking ring, locking bolts are connected to the middle portions of the two bolt locking blocks in a common threaded mode, fixing blocks are symmetrically and fixedly connected to the front side and the back side of the middle portion of the connecting piece pipe body, telescopic grooves are symmetrically formed in one side wall body of the two fixing blocks, and telescopic connecting blocks are symmetrically inserted into the inner cavities of the two telescopic grooves, the upper end and the lower end of the wall body on one side opposite to the two telescopic connecting blocks are respectively and fixedly connected with a negative pressure spring, the top part and the bottom part of one end, close to the two telescopic connecting blocks, are respectively and fixedly connected with a limiting block, the top part and the bottom part of the two fixing blocks are respectively provided with a limiting groove, the ends, far away from the two telescopic connecting blocks, of the two telescopic connecting blocks are symmetrically and fixedly connected with pulling plates, the right end on one side opposite to the two pulling plates is symmetrically and fixedly connected with a fixed inserted link, the front and back wall bodies at the middle part of the right end of the connecting piece pipe body are symmetrically provided with through grooves, the left end of the inner cavity of the connecting piece pipe body is fixedly connected with an inner pipe, the annular telescopic groove has been seted up to the right side middle part wall body of inner tube, the left side wall body of annular telescopic inslot chamber evenly encircles fixedly connected with compression spring, and is a plurality of the common fixedly connected with second sealing ring of compression spring's right-hand member, the ring channel has been seted up to the right side middle part wall body of second sealing ring.

Preferably, the end, close to each other, of each of the two fixed insertion rods penetrates through the two through grooves and extends to the inner cavity at the right end of the connecting piece pipe body, the end part of each of the fixed insertion rods can be inserted into the inner cavity of the corresponding fixed groove, and the fixed insertion rods are matched with the through grooves and the fixed grooves.

Preferably, one end of each of the two groups of negative pressure springs, which is close to the other end, is fixedly connected with the wall bodies on the opposite sides of the inner cavities of the two telescopic grooves.

Preferably, the thickness of the first sealing ring is the same as that of the lining pipe, and the first sealing ring is matched with the annular groove.

Preferably, the inner wall and the outer wall of the second sealing ring are tightly attached to the inner wall and the outer wall at the right end of the inner cavity of the annular telescopic groove.

Preferably, the outer ends of the two sets of limiting blocks are respectively positioned in the inner cavities of the two sets of limiting grooves.

Advantageous effects

Compared with the prior art, the utility model provides a tightness-adjustable polytetrafluoroethylene lining connecting piece for a conduit, which has the following beneficial effects:

1. this pipe tetrafluoro inside lining connecting piece with adjustable elasticity, through the locking shrink groove that sets up, the locking ring, bolt latch segment, locking bolt, the fixed slot, lead to the groove, fixed inserted bar, the arm-tie, the fixed block, the expansion joint piece, negative pressure spring's the mutually supporting can make things convenient for inside lining pipe and connecting piece body to fix and dismantle, convenient operation, the steadiness is high, can carry out the regulation of steadiness and elasticity according to actual conditions simultaneously, the cooperation setting of stopper and spacing groove is convenient for play spacing effect to the expansion joint piece.

2. This pipe tetrafluoro inside lining connecting piece with adjustable elasticity, the leakproofness that can increase interior bushing pipe and inner tube junction through mutually supporting of the first sealing ring, the flexible groove of annular, compression spring, second sealing ring, the ring channel that set up, elastic contact, the leakproofness is good.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the disassembled structure of the pulling plate and the fixing block;

fig. 4 is a schematic longitudinal sectional view of the right end of the connector body of the present invention.

In the figure: 1. a conduit; 2. a liner tube; 3. a connector tube body; 4. locking a contraction groove; 5. locking a ring; 6. a bolt locking block; 7. locking the bolt; 8. pulling a plate; 9. fixing the inserted rod; 10. a fixed block; 11. a through groove; 12. fixing grooves; 13. a first seal ring; 14. a telescopic connecting block; 15. a limiting block; 16. a negative pressure spring; 17. a telescopic groove; 18. a limiting groove; 19. an inner tube; 20. an annular expansion groove; 21. a compression spring; 22. a second seal ring; 23. an annular groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in figures 1-4, a tightness-adjustable polytetrafluoroethylene lining connecting piece for a conduit, which comprises a conduit 1, wherein a lining pipe 2 is attached to the inner wall of the conduit 1, a connecting piece pipe body 3 is sleeved outside the left end of the lining pipe 2, a first sealing ring 13 is fixedly connected to the left side wall body of the lining pipe 2, fixing grooves 12 are respectively and uniformly formed in the front side and the back side wall body of the left end of the lining pipe 2, locking shrinkage grooves 4 are uniformly formed in the outer surface of the right end of the connecting piece pipe body 3 in a surrounding manner, a locking ring 5 is sleeved outside the right end of the connecting piece pipe body 3, bolt locking blocks 6 are symmetrically and fixedly connected to the front side and the back side of the upper end of the locking ring 5, locking bolts 7 are commonly and threadedly connected to the middle parts of the two bolt locking blocks 6, fixed blocks 10 are symmetrically and fixedly connected to the front side and the back side of the middle part of the connecting piece pipe body 3, and telescopic grooves 17 are symmetrically formed on the opposite sides of the two fixed blocks 10, the inner cavities of the two telescopic grooves 17 are symmetrically inserted with telescopic connecting blocks 14, the upper and lower ends of the wall body on one side opposite to the two telescopic connecting blocks 14 are respectively and fixedly connected with a negative pressure spring 16, the ends, close to the two sets of negative pressure springs 16, are respectively and fixedly connected with the wall body on the other side opposite to the inner cavities of the two telescopic grooves 17, the tops and bottoms, close to the ends, of the two telescopic connecting blocks 14 are respectively and fixedly connected with a limiting block 15, the outer ends of the two limiting blocks 15 are respectively positioned in the inner cavities of the two sets of limiting grooves 18, the tops and bottoms of the two fixing blocks 10 are respectively provided with a limiting groove 18, the limiting block 15 and the limiting groove 18 are matched to limit the telescopic connecting blocks 14, the ends, far away from the two telescopic connecting blocks 14, are symmetrically and fixedly connected with pull plates 8, the fixed inserting rods 9 are symmetrically and fixedly connected with the right ends, close to the two fixed inserting rods 9, respectively penetrate through the two through grooves 11 and extend to the right end inner cavities of the connecting piece pipe body 3, the end part of the fixed inserted bar 9 can be inserted into the inner cavity of the fixed groove 12, the fixed inserted bar 9 is matched with the through groove 11 and the fixed groove 12, the front and back wall bodies at the middle part of the right end of the connecting piece tube body 3 are symmetrically provided with the through groove 11, the mutually matched locking contraction groove 4, the locking ring 5, the bolt locking block 6, the locking bolt 7, the fixed groove 12, the through groove 11, the fixed inserted bar 9, the pulling plate 8, the fixed block 10, the telescopic connecting block 14 and the negative pressure spring 16 can facilitate the fixing and the dismounting of the lining tube 2 and the connecting piece tube body 3, the operation is convenient, the stability is high, the stability and the tightness can be adjusted according to the actual conditions, the left end of the inner cavity of the connecting piece tube body 3 is fixedly connected with the inner tube 19, the middle part of the right side wall body of the inner tube 19 is provided with the annular telescopic groove 20, and the left side wall body of the inner cavity of the annular telescopic groove 20 is uniformly and fixedly connected with the compression spring 21 in a surrounding way, the common fixedly connected with second sealing ring 22 of the right-hand member of a plurality of compression springs 21, the inner wall and the outer wall of second sealing ring 22 and the inner wall and the outer wall of the flexible groove 20 inner chamber right-hand member of annular are closely laminated, ring channel 23 has been seted up to the right side middle part wall body of second sealing ring 22, the thickness of first sealing ring 13 is the same with the thickness of bushing pipe 2, and first sealing ring 13 and ring channel 23 adaptation, through the first sealing ring 13 that sets up, the flexible groove 20 of annular, compression springs 21, second sealing ring 22, the mutually supporting of ring channel 23 can increase the leakproofness of bushing pipe 2 and inner tube 19 junction, elastic contact, the leakproofness is good.

It should be noted that, the utility model is a polytetrafluoroethylene lining connecting piece of a kind of conduit with adjustable elasticity, while using, pull back two pulling plates 8 to drive two flexible connecting blocks 14 to stretch two sets of negative pressure springs 16, drive the end of two fixed inserted bars 9 to disengage from the cavity of the connecting piece tube body 3, then the right end of the connecting piece tube body 3 is sleeved outside the left end of the lining tube 2, and make the first sealing ring 13 inserted in the cavity of the annular groove 23, compress the spring 21 inwards, then loosen the pulling plates 8, under the reverse action of two sets of negative pressure springs 16, the end of two fixed inserted bars 9 will be inserted into the cavity of the corresponding fixed groove 12 automatically, finally, drive two bolt locking blocks 6 to approach each other by rotating the locking bolt 7, two bolt locking blocks 6 approach and drive the locking ring 5 to contract, under the action of the locking contracting groove 4, the locking ring 5 drives the right end of the connecting piece tube body 3 to contract, thereby locking the outside of interior bushing pipe 2, and then it is fixed to have accomplished, locking ring 5 can carry out the elasticity and adjust simultaneously, the tip of two fixed inserted bars 9 also can be according to compression spring 21's shrink degree insert establish the fixed slot 12 that gets into different positions, high durability and convenient operation, the steadiness is high, can carry out the regulation of steadiness and elasticity simultaneously according to actual conditions, stopper 15 and spacing groove 18's cooperation setting is convenient for play spacing effect to telescopic connection piece 14, through the first sealing ring 13 that sets up, annular telescopic groove 20, compression spring 21, second sealing ring 22, the mutually supporting of annular channel 23 can increase the leakproofness of interior bushing pipe 2 with inner tube 19 junction, elastic contact, the leakproofness is good.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pipe tetrafluoro inside lining connecting piece with adjustable elasticity, includes pipe (1), its characterized in that: the inner wall of the guide pipe (1) is provided with a lining pipe (2) in a laminating manner, the outer portion of the left end of the lining pipe (2) is sleeved with a connecting piece pipe body (3), the left side wall body of the lining pipe (2) is fixedly connected with a first sealing ring (13), the front side and the back side wall body of the left end of the lining pipe (2) are respectively and transversely and uniformly provided with fixed grooves (12), the outer surface of the right end of the connecting piece pipe body (3) is uniformly surrounded with locking shrinkage grooves (4), the outer portion of the right end of the connecting piece pipe body (3) is sleeved with a locking ring (5), the front side and the back side of the upper end of the locking ring (5) are symmetrically and fixedly connected with bolt locking blocks (6), the middle portions of the two bolt locking blocks (6) are jointly and threadedly connected with locking bolts (7), and the front side and the back side of the middle portion of the connecting piece pipe body (3) are symmetrically and fixedly connected with fixed blocks (10), telescopic grooves (17) are symmetrically formed in the wall bodies of the two fixing blocks (10) on the opposite sides, telescopic connecting blocks (14) are symmetrically inserted into the inner cavities of the two telescopic grooves (17), negative pressure springs (16) are fixedly connected to the upper ends and the lower ends of the two telescopic connecting blocks (14) on the opposite side of the wall body respectively, limit blocks (15) are fixedly connected to the tops and the bottoms of the two telescopic connecting blocks (14) close to one end respectively, limit grooves (18) are formed in the tops and the bottoms of the two fixing blocks (10) respectively, pull plates (8) are symmetrically and fixedly connected to the ends of the two telescopic connecting blocks (14) far away from one end, fixed inserting rods (9) are symmetrically and fixedly connected to the right ends of the opposite sides of the pull plates (8), through grooves (11) are symmetrically formed in the front and the back wall body in the middle of the connecting piece body (3), and inner tubes (19) are fixedly connected to the left ends of the inner cavities of the connecting piece body (3), annular flexible groove (20) have been seted up to the right side middle part wall body of inner tube (19), the left side wall body of annular flexible groove (20) inner chamber evenly encircles fixedly connected with compression spring (21), and is a plurality of the common fixedly connected with second sealing ring (22) of right-hand member of compression spring (21), ring channel (23) have been seted up to the right side middle part wall body of second sealing ring (22).

2. The adjustable-slack conduit tetrafluoro-lined connector of claim 1, wherein: two the one end that is close to mutually of fixed inserted bar (9) passes two logical groove (11) respectively and extends to the right-hand member inner chamber of connecting piece body (3) to the tip of fixed inserted bar (9) can be inserted and is located the inner chamber of fixed slot (12), fixed inserted bar (9) and logical groove (11) and fixed slot (12) adaptation.

3. The adjustable-slack conduit tetrafluoro-lined connector of claim 1, wherein: one ends of the two groups of negative pressure springs (16) close to each other are respectively fixedly connected with the wall bodies on the back side of the inner cavities of the two telescopic grooves (17).

4. The adjustable-slack conduit tetrafluoro-lined connector of claim 1, wherein: the thickness of the first sealing ring (13) is the same as that of the lining pipe (2), and the first sealing ring (13) is matched with the annular groove (23).

5. The adjustable-slack conduit tetrafluoro-lined connector of claim 1, wherein: the inner wall and the outer wall of the second sealing ring (22) are tightly attached to the inner wall and the outer wall of the right end of the inner cavity of the annular telescopic groove (20).

6. The adjustable-slack conduit tetrafluoro-lined connector of claim 1, wherein: the outer ends of the two groups of limiting blocks (15) are respectively positioned in the inner cavities of the two groups of limiting grooves (18).