CN214839087U

CN214839087U - Stainless steel seamless steel pipe

Info

Publication number: CN214839087U
Application number: CN202023106260.7U
Authority: CN
Inventors: 王会森; 孙晓林; 张将
Original assignee: Huadi Steel Group Co ltd
Current assignee: Huadi Steel Group Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-11-23
Anticipated expiration: 2030-12-21

Abstract

The utility model relates to a stainless steel seamless steel pipe relates to the field of steel pipe, it includes body and flange, set up the mounting groove that the tip card that supplies the body goes into on the flange, it has a plurality of hooks to still articulate on the flange, a plurality of hooks are circumference distribution along the periphery of mounting groove, be provided with a plurality of locating levers on the body, a plurality of locating levers and hook one-to-one setting, hook hooks on corresponding the locating lever, be provided with the elastic block between the inner wall of body and mounting groove, the elastic block makes the body have the trend of keeping away from the mounting groove. Through setting up hook piece and locating lever, when the junction of stainless steel seamless steel pipe tip takes place to corrode, take off each hook piece from corresponding the locating lever, can realize the separation of flange and body, need not to change whole stainless steel seamless steel pipe for it is more convenient to change the flange that has corroded.

Description

Stainless steel seamless steel pipe

Technical Field

The application relates to the field of steel pipes, in particular to a stainless steel seamless steel pipe.

Background

A stainless seamless steel pipe is a long steel bar having a hollow cross section and no seam at the periphery, and belongs to a kind of steel pipe.

When the pipelines of some stainless steel seamless steel pipes are connected, flanges are usually welded to two opposite ends of the stainless steel seamless steel pipe for convenience of disassembly, and then the flanges on the two stainless steel seamless steel pipes are connected through bolts. However, when the stainless seamless steel pipe is used, particularly when some acidic fluids are transported, the joint of the end portions of the stainless seamless steel pipe is easy to corrode, the welded flange cannot be replaced, the whole stainless seamless steel pipe needs to be replaced, and the stainless seamless steel pipe is troublesome and needs to be improved.

SUMMERY OF THE UTILITY MODEL

Need change the more troublesome problem of whole steel pipe in order to improve the junction of stainless steel seamless steel pipe tip when corroding, this application provides a stainless steel seamless steel pipe.

The application provides a stainless steel seamless steel pipe adopts following technical scheme:

the utility model provides a stainless steel seamless steel pipe, includes body and flange, the confession has been seted up on the flange the mounting groove that the tip card of body was gone into, it has a plurality of hook pieces still to articulate on the flange, and is a plurality of hook piece edge the periphery of mounting groove is circumference and distributes, be provided with a plurality of locating levers on the body, and is a plurality of the locating lever with hook piece one-to-one sets up, hook piece hook in corresponding on the locating lever, the body with be provided with the elastic block between the inner wall of mounting groove, the elastic block makes the body has the trend of keeping away from the mounting groove.

By adopting the technical scheme, after the stainless steel seamless steel pipe is used for a long time, when the connecting part of the end part of the stainless steel seamless steel pipe is corroded, each hook piece is taken down from the corresponding positioning rod, so that the flange and the pipe body can be separated, the corroded flange is replaced, when the replaced flange is installed, the corresponding end part of the pipe body is clamped into the installing groove on the replaced flange, each hook piece on the replaced flange is turned over, each hook piece is hooked on the corresponding positioning rod, at the moment, the pipe body is tightly abutted against the elastic block, and the positioning rods on the pipe body and the corresponding hook pieces are tightly abutted against each other by the elastic block, so that the installation and fixation between the replaced flange and the pipe body are realized, the whole stainless steel seamless steel pipe does not need to be replaced, and the corroded flange is more convenient to replace; meanwhile, the sealing performance between the flange and the pipe body is improved by arranging the elastic block, and the condition of liquid leakage in the pipe body is reduced.

Optionally, be provided with a plurality of locating pieces on the inner wall of mounting groove, it is a plurality of the locating piece with hook piece one-to-one sets up, set up the confession on the lateral wall of body the constant head tank that the locating piece card was gone into, the locating lever is located in the constant head tank.

Through adopting above-mentioned technical scheme, set up locating piece and constant head tank, thereby carry on spacingly to the body in corresponding the constant head tank through the locating piece card income, made the torsional force that hook received when having reduced the body and produced pivoted trend too big hook breaking occur's the condition that leads to, improved the overall stability of installation connection structure between flange and the body for hook is more durable.

Optionally, the hook comprises a hinge portion hinged to the flange and an abutment portion provided on the hinge portion, an acute angle being formed between the abutment portion and the hinge portion.

Through adopting above-mentioned technical scheme, hang on corresponding the locating lever and with correspond the locating lever when supporting tightly each other when hook piece, the locating lever supports tight articulated portion and butt portion respectively, thereby realize the locating lever and correspond the location between the hook piece, compare and be the circular arc between butt portion and articulated portion and connect, the locating lever has been reduced and has taken place gliding condition along the lateral wall that hook piece, and then the wearing and tearing that have produced between locating lever and the hook piece have been reduced, make the locating lever more durable with hook piece, and the locating lever with correspond the connection between the hook piece more stable.

Optionally, a torsion spring is arranged on the hinge shaft of the hinge portion, and the torsion spring enables the hinge portion to have a tendency of approaching to the corresponding flange.

Through adopting above-mentioned technical scheme, set up the torsional spring, the torsional spring drives and hooks the direction that is close to corresponding flange and outwards struts, drives the body through the cooperation that hooks and locating lever simultaneously and is close to the flange more for the connection between body and the flange is inseparabler.

Optionally, the outer side sleeve of the pipe body is provided with a ring sleeve, the ring sleeve is located between the two pipe bodies and covers the flange, an elastic sealing ring is arranged on the inner wall of the ring sleeve, and the elastic sealing ring is located at the joint of the two adjacent flanges and abuts against the outer side wall of the two adjacent flanges.

By adopting the technical scheme, the ring sleeve and the elastic sealing ring are arranged, the sealing performance between the corresponding end parts of the flange and the pipe body and between two adjacent stainless steel seamless steel pipes is improved, the leakage condition in the liquid conveying process is reduced, and then the condition that the leaked liquid corrodes the flange and the pipe body is reduced, so that the corrosion speed of the pipe body and the flange is delayed, and the pipe body and the flange are more durable.

Optionally, the ring sleeve includes a first ring slidably and rotatably connected to one of the pipe bodies and a second ring slidably and rotatably connected to the other pipe body, the first ring sleeve is sleeved on the outer sides of the corresponding pipe body and the corresponding flange, a gap is formed between the first ring and the corresponding flange, a snap ring is arranged at the end of the second ring close to the first ring sleeve, the snap ring is embedded in the gap, and the outer side wall of the snap ring is in threaded connection with the first ring sleeve; threaded connection has the retaining member on the first lantern ring, the retaining member is worn to establish the snap ring setting.

Through adopting above-mentioned technical scheme, after two adjacent stainless steel seamless steel pipe installations are fixed, move the second lantern ring on the first lantern ring on one of them body and another body simultaneously, make the first lantern ring and the second lantern ring all move towards the direction that is close to two stainless steel seamless steel pipe junctions, the tip card of the snap ring on the second lantern ring goes into the first lantern ring and corresponds the gap department between the flange, rotate the first lantern ring and the second lantern ring, screw-thread fit through the first lantern ring and snap ring makes in the snap ring imbeds the gap gradually, after the lateral wall of the second lantern ring is contradicted to the first lantern ring, twist reverse the retaining member and make the retaining member wear to establish the snap ring and can realize the fixed between the first lantern ring and the second lantern ring, make the installation ring cover more convenient.

Optionally, the first lantern ring and the second lantern ring are both in threaded connection with the corresponding pipe body.

By adopting the technical scheme, the first sleeve ring and the second sleeve ring are limited, so that the situation that the first sleeve ring and the second sleeve ring slip out of the pipe body is reduced, and the ring sleeve is more convenient to install; when the body transportation, reduced the first lantern ring and the second lantern ring and taken place to slide and then increased the condition of the wearing and tearing between the first lantern ring and the second lantern ring and the body lateral wall on the body for the transportation of body is more convenient.

Optionally, a plurality of caulking grooves are formed in the outer side wall of the flange, the caulking grooves and the hook pieces are arranged in a one-to-one correspondence mode, and the hook pieces are located in the corresponding caulking grooves.

Through adopting above-mentioned technical scheme, set up the caulking groove, hold hook, reduced the condition that hook piece messenger hook piece on first lantern ring and the second lantern ring threaded connection in-process were contradicted and are corresponded the flange and damage to make the contact between ring cover and the flange inseparabler.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the hook members and the positioning rods, when the connecting parts of the end parts of the stainless steel seamless steel pipes are corroded, the hook members are taken down from the corresponding positioning rods, so that the flanges and the pipe bodies can be separated, the whole stainless steel seamless steel pipe does not need to be replaced, and the corroded flanges are more convenient to replace;

2. the positioning block and the positioning groove are arranged to limit the hook body, so that the situation that the hook body is broken due to overlarge torsional force applied to the hook body when the hook body tends to rotate is reduced, the overall stability of an installation and connection structure between the flange and the hook body is improved, and the hook body is more durable;

3. through setting up the first lantern ring, the second lantern ring and retaining member, remove and twist reverse first lantern ring and second lantern ring and make the snap ring embedding gap in, the rethread twists reverse the retaining member and realizes the fixed between the first lantern ring and the second lantern ring, can accomplish the installation of ring cover for the installation ring cover is more convenient.

Drawings

FIG. 1 is an overall schematic view of an embodiment of the present application;

FIG. 2 is a partial exploded view of the embodiment of the present application, mainly illustrating the structure of the mounting groove;

FIG. 3 is an enlarged view of portion A of FIG. 2, showing primarily the hook structure;

fig. 4 is a schematic view of the embodiment of the present application when installed.

Description of reference numerals: 1. a pipe body; 11. positioning a groove; 111. positioning a rod; 2. a flange; 21. mounting grooves; 211. positioning blocks; 22. caulking grooves; 3. an elastic block; 4. a hook member; 41. a hinge portion; 42. an abutting portion; 5. a torsion spring; 6. sleeving a ring; 61. a first collar; 62. a second collar; 621. a snap ring; 7. a gap; 8. an elastic sealing ring; 9. and a locking member.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a stainless steel seamless steel pipe. Referring to fig. 1, the stainless steel seamless steel pipe includes a pipe body 1 and flanges 2 at opposite ends of the pipe body 1 in a length direction thereof.

Referring to fig. 2, the flange 2 has an installation groove 21 formed on an end surface thereof near the pipe body 1, and the installation groove 21 is used for the corresponding end of the pipe body 1 to be inserted. A plurality of positioning blocks 211 are fixed on the inner wall of the mounting groove 21, and the plurality of positioning blocks 211 are uniformly distributed along the outer side wall of the pipe body 1 in the circumferential direction. A plurality of locating grooves 11 are formed in the outer side walls of the two opposite ends of the pipe body 1, the locating grooves 11 and the locating blocks 211 are arranged in a one-to-one correspondence mode, and each locating groove 11 penetrates through the pipe body 1 in the direction close to the corresponding flange 2. Each positioning groove 11 is used for the corresponding positioning block 211 to be clamped in.

Referring to fig. 2, a plurality of elastic blocks 3 are fixed on the inner wall of the bottom of the mounting groove 21, each elastic block 3 is located between two adjacent positioning blocks 211 and located between the corresponding end of the pipe body 1 and the inner wall of the bottom of the mounting groove 21, and the elastic blocks 3 make the pipe body 1 have a tendency of being far away from the mounting groove 21. In this embodiment, the elastic block 3 is made of rubber.

Referring to fig. 2, a positioning rod 111 is fixed on an inner wall of each positioning groove 11, one end of the positioning rod 111 is fixedly connected with one inner wall of the corresponding positioning groove 11 along the length direction of the tube body 1, the other end of the positioning rod 111 is fixedly connected with the other inner wall of the corresponding positioning groove 11 along the length direction of the tube body 1, and the length direction of the positioning rod 111 is perpendicular to the length direction of the tube body 1.

Referring to fig. 2, a plurality of caulking grooves 22 have been seted up on flange 2 is close to the lateral wall of body 1, and a plurality of caulking grooves 22 set up with a plurality of locating pieces 211 one-to-one, and a plurality of caulking grooves 22 are circumference evenly distributed along the periphery of mounting groove 21, and the tip that caulking groove 22 is close to corresponding locating piece 211 stretches into in corresponding locating piece 211.

Referring to fig. 2 and 3, each of the caulking grooves 22 is provided with a hook 4, the hook 4 is arranged corresponding to the positioning rod 111 one by one, each of the hooks 4 includes a hinge portion 41 and a contact portion 42, the hinge portion 41 is hinged in the corresponding caulking groove 22, a hinge axis of the hinge portion 41 is arranged close to the corresponding positioning block 211, and a hinge axis of the hinge portion 41 is arranged parallel to a length direction of the corresponding positioning rod 111. A torsion spring 5 is fixed to a hinge shaft of the hinge portion 41, and the torsion spring 5 makes the hinge portion 41 have a tendency to approach the corresponding flange 2.

Referring to fig. 3, the abutting portion 42 is located at one end of the hinge portion 41 away from the hinge axis thereof and is fixedly connected with the hinge portion 41, and the abutting portion 42 is disposed close to the groove bottom of the corresponding caulking groove 22, and an acute angle is formed between the abutting portion 42 and the corresponding hinge portion 41.

In the in-service use, the hook 4 is turned over towards the direction of keeping away from corresponding caulking groove 22 to moving flange 2 makes flange 2 be close to the corresponding tip of body 1, wear to establish the space between corresponding locating lever 111 and the corresponding constant head tank 11 tank bottom inner wall to hook 4, loosen hook 4, hook 4 hooks on corresponding locating lever 111 under the effort of torsional spring 5, and correspond locating lever 111 and support the setting of tight articulated portion 41 and butt portion 42, can accomplish the connection between hook 4 and the corresponding locating lever 111.

Referring to fig. 4, the outer side of the pipe body 1 is sleeved with a ring sleeve 6, the ring sleeve 6 is located at the joint between two adjacent pipe bodies 1, and covers the flanges 2 which are close to each other on the two adjacent pipe bodies 1. The ring sleeve 6 comprises a first ring 61 and a second ring 62, the first ring 61 on each pipe body 1 is arranged opposite to the second ring 62 on the adjacent pipe body 1, and the ring sleeve 6 is formed by splicing the first ring 61 on the pipe body 1 with the second ring 62 on the adjacent pipe body 1.

Referring to fig. 4, the first sleeve ring 61 and the second sleeve ring 62 are respectively located at two opposite ends of the pipe body 1, the first sleeve ring 61 is sleeved on the end portion of the corresponding pipe body 1 and the outer side of the corresponding flange 2, and a gap 7 is formed between the first sleeve ring 61 and the corresponding flange 2. The first lantern ring 61 is connected to the pipe body 1 in a threaded manner, the first lantern ring 61 is connected to the pipe body 1 in a sliding manner through the threaded fit with the pipe body 1, and the sliding direction of the first lantern ring is parallel to the length direction of the pipe body 1.

Referring to fig. 4, the second collar 62 is screwed on the pipe body 1, and the second collar 62 is slidably connected to the pipe body 1 by being engaged with the screw of the pipe body 1, and the sliding direction thereof is parallel to the length direction of the pipe body 1.

Referring to fig. 4, a snap ring 621 is fixed to the end portion of the second collar 62 close to the first collar 61 on the adjacent pipe body 1, the inner wall of the snap ring 621 is flush with the inner wall of the second collar 62, the snap ring 621 is embedded in the gap 7 between the first collar 61 on the adjacent pipe body 1 and the pipe body 1, and the outer side wall of the snap ring 621 is in threaded connection with the inner wall of the first collar 61 on the adjacent pipe body 1. In this embodiment, the snap ring 621 and the corresponding second collar 62 are integrally disposed.

Referring to fig. 4, an elastic sealing ring 8 is fixed on the inner wall of the region formed by splicing the ring sleeve 6 and the snap ring 621, and the elastic sealing ring 8 is located at the joint of two adjacent flanges 2 and abuts against the outer side walls of the two adjacent flanges 2. In this embodiment, the elastic sealing ring 8 is made of rubber.

Referring to fig. 4, a locking member 9 is threadedly connected to the first collar 61, and the locking member 9 is inserted into a retaining ring 621 of the second collar 62 of the adjacent pipe body 1 to fix the first collar 61 and the second collar 62. In this embodiment, the locking member 9 is a locking bolt. The snap ring 621 is provided with a through hole for the locking member 9 to pass through, and the position of the through hole corresponds to the position of the locking member 9 on the first collar 61 after the first collar 61 and the second collar 62 are mutually abutted.

When installing flange 2, align each locating piece 211 on flange 2 with locating slot 11 on the body 1 corresponding tip one by one, remove flange 2 and make the corresponding tip card of body 1 go into mounting groove 21 on flange 2, and locating piece 211 all goes into corresponding locating slot 11 in, the in-process in body 1 card income mounting groove 21, upset hook 4 makes each hook 4 all hang on corresponding locating lever 111, at this moment, the corresponding tip of body 1 supports the setting of elastic block 3 on tight flange 2, elastic block 3 makes each locating lever 111 on the body 1 and corresponds and supports tightly each other between the hook 4, thereby realize that the installation between flange 2 and the body 1 is fixed.

Rethread bolt and nut's cooperation realizes fixed between two flanges 2 that are close to each other on two adjacent bodys 1, twist reverse the first lantern ring 61 on one of them body 1 and the second lantern ring 62 on another body 1 simultaneously, make the tip of the snap ring 621 on the second lantern ring 62 imbed gradually in the gap 7 between the first lantern ring 61 and the corresponding flange 2, after the lateral wall of the second lantern ring 62 of first lantern ring 61 conflict, twist retaining member 9 on the first lantern ring 61 and make retaining member 9 wear to establish the through-hole on the snap ring 621 and can realize that the installation between the ring cover 6 is fixed.

The implementation principle of the stainless steel seamless steel pipe in the embodiment of the application is as follows:

when the junction of stainless steel seamless steel pipe tip corrodes, twist reverse first lantern ring 61 and second lantern ring 62 simultaneously, make first lantern ring 61 and second lantern ring 62 alternate segregation, and spill hook member 4, take off each hook member 4 from corresponding locating lever 111, can realize the separation of flange 2 and body 1, change the flange 2 that corrodes after then, install flange 2 after will changing on body 1, can make the stainless steel seamless steel pipe continue to use, need not to change whole stainless steel seamless steel pipe, make to change corroded flange 2 more convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a stainless steel seamless steel pipe, includes body (1) and flange (2), its characterized in that: offer the confession on flange (2) mounting groove (21) that the tip card of body (1) is gone into, it has a plurality of hook (4), a plurality of still to articulate on flange (2) follows hook (4) the periphery of mounting groove (21) is circumference and distributes, be provided with a plurality of locating levers (111) on body (1), a plurality of locating lever (111) with hook (4) one-to-one sets up, hook (4) hook in corresponding on locating lever (111), body (1) with be provided with elastic block (3) between the inner wall of mounting groove (21), elastic block (3) make body (1) have and keep away from the trend of mounting groove (21).

2. The stainless steel seamless steel pipe of claim 1, wherein: be provided with a plurality of locating pieces (211) on the inner wall of mounting groove (21), it is a plurality of locating piece (211) with hook member (4) one-to-one sets up, set up the confession on the lateral wall of body (1) locating piece (211) constant head tank (11) that card was gone into, locating lever (111) are located in constant head tank (11).

3. The stainless steel seamless steel pipe of claim 1, wherein: the hook (4) comprises a hinge part (41) hinged to the flange (2) and an abutting part (42) arranged on the hinge part (41), wherein an acute angle is formed between the abutting part (42) and the hinge part (41).

4. The stainless steel seamless steel pipe of claim 3, wherein: a torsion spring (5) is arranged on a hinged shaft of the hinged part (41), and the torsion spring (5) enables the hinged part (41) to have a tendency of approaching to the corresponding flange (2).

5. The stainless steel seamless steel pipe of claim 1, wherein: the outer side cover of body (1) is equipped with ring cover (6), ring cover (6) are located two between body (1) and the lid is established flange (2) set up, be provided with elastic sealing ring (8) on the inner wall of ring cover (6), elastic sealing ring (8) are located adjacent two the junction of flange (2) supports tightly adjacent two the lateral wall setting of flange (2).

6. The stainless steel seamless steel pipe of claim 5, wherein: the ring sleeve (6) comprises a first sleeve ring (61) which is connected to one of the pipe bodies (1) in a sliding and rotating mode and a second sleeve ring (62) which is connected to the other pipe body (1) in a sliding and rotating mode, the first sleeve ring (61) is sleeved on the outer sides of the corresponding pipe bodies (1) and the corresponding flanges (2), a gap (7) is formed between the first sleeve ring (61) and the corresponding flange (2), a clamping ring (621) is arranged at the end part, close to the first sleeve ring (61), of the second sleeve ring (62), the clamping ring (621) is embedded into the gap (7), and the outer side wall of the clamping ring (621) is in threaded connection with the first sleeve ring (61);

threaded connection has retaining member (9) on the first lantern ring (61), retaining member (9) wear to establish snap ring (621) set up.

7. The stainless steel seamless steel pipe of claim 6, wherein: the first lantern ring (61) and the second lantern ring (62) are in threaded connection with the corresponding pipe body (1).

8. The stainless steel seamless steel pipe of claim 5, wherein: a plurality of caulking grooves (22) are formed in the outer side wall of the flange (2), the caulking grooves (22) and the hook pieces (4) are arranged in a one-to-one correspondence mode, and the hook pieces (4) are located in the corresponding caulking grooves (22).