CN217234828U

CN217234828U - High-safety metal expansion joint

Info

Publication number: CN217234828U
Application number: CN202220130334.0U
Authority: CN
Inventors: 刘根喜; 叶吉祥
Original assignee: Jiangsu Baojinlai Pipeline Equipment Co ltd
Current assignee: Jiangsu Baojinlai Pipeline Equipment Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-08-19
Anticipated expiration: 2032-01-18

Abstract

The utility model relates to a metal expansion joint field specifically is a high security metal expansion joint, including the bellows, the both ends of bellows outer wall are all fixed the go-between of having cup jointed, and one side of go-between is fixed nested has a sealing washer, two the equal activity joint in one side that the go-between was carried on the back mutually has the connecting pipe, and fixed the cup jointing has the holding ring on the connecting pipe. This kind of high security metal expansion joint, the bulge loop that sets up through go-between and the relative one side of connecting pipe, the setting of circular arc bulge loop and circular arc annular, the joint stress surface improves by a wide margin when making its leakproofness improve, avoid two sealing washer excessive extrusion grinding simultaneously, effectual improvement life, and bellows tip activity is pegged graft and is advanced one in the connecting pipe and improved the leakproofness, setting through telescopic tube, make the outer wall of bellows receive the protection, the bellows deformation also can be synchronized to telescopic tube simultaneously, do not influence the normal use of compensator, the security is higher.

Description

High-safety metal expansion joint

Technical Field

The utility model relates to a metal expansion joint field specifically is a metal expansion joint.

Background

The existing compensator is applied to various fields, displacement is realized through flexible deformation of a corrugated pipe, a butt joint pipe or a straight pipe is welded with a pipeline connecting pipe, or an upper flange is welded and then is connected with a pipeline flange,

the following problems in the prior art are not well solved: 1. the existing compensator has the leakage phenomenon when conveying high-temperature and high-pressure media, the safety is low, the common sealing gasket is troublesome to install, and the sealing gasket is easy to grind when in use, so that the sealing gasket needs to be continuously replaced, and the service life is influenced; 2. the existing corrugated pipe is easy to corrode or damage due to external force factors along with the prolonging of the service life, the installation mode of the bolt is time-consuming, the end face of the bolt is easy to leak, and the installation effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high security metal expansion joint to it is relatively poor to provide sealed effect in solving above-mentioned background art, and the bellows outside does not possess protection architecture and terminal surface problem that the seepage appears easily.

In order to achieve the above object, the utility model provides a following technical scheme: the high-safety metal expansion joint comprises a corrugated pipe, wherein connecting rings are fixedly sleeved at two ends of the outer wall of the corrugated pipe, a sealing ring is fixedly nested at one side of each connecting ring, connecting pipes are movably clamped at the opposite sides of the two connecting rings, and positioning rings are fixedly sleeved on the connecting pipes;

the utility model discloses a set up the screw rod, including the holding ring, the outer wall of holding ring, go up the activity interlude and have first rotation bolt, and one side fixedly connected with slide bar of holding ring, sliding connection has the screw thread slider on the slide bar, and screw thread slider screw thread cup joints on first rotation bolt, the outer wall of go-between and connecting pipe is the first installation piece of fixedly connected with and second installation piece respectively, and the activity interlude has the second to rotate the bolt on the first installation piece, and the second rotates the bolt other end run through the second installation piece and with screw thread slider threaded connection, two first installation piece passes through screw rod fixed connection, two the go-between passes through telescopic tube fixed connection.

Preferably, the number of the sealing rings is two, one side of the connecting ring is provided with two nesting grooves matched with the sealing rings, and one side of the connecting ring is provided with a convex ring clamped with the connecting pipe.

Preferably, the connecting ring and the opposite side of the connecting pipe are provided with an arc groove and an arc bump, and the two arc ring grooves and the two arc protruding rings are clamped with each other respectively.

Preferably, the first rotating bolt and the second rotating bolt are opposite in end and are provided with matched clamping grooves, and the threaded sliding block is sleeved at the clamping position of the first rotating bolt and the second rotating bolt in a threaded manner.

Preferably, the number of the first mounting block, the second mounting block and the first rotating bolt is six, and the number of the screws is three.

Preferably, the telescopic pipe is an anti-corrosion metal telescopic pipe structure, and the telescopic pipe is sleeved on the outer side of the corrugated pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, the setting of bulge loop, circular arc bulge loop and circular arc annular that sets up through go-between and the relative one side of connecting pipe, joint stress surface increases substantially when making its leakproofness improve, avoids two sealing washers excessively to extrude the grinding simultaneously, effectual improvement life, and bellows tip activity is pegged graft and is advanced one in the connecting pipe and improved the leakproofness, and the security is higher.

The utility model discloses in, through telescopic tube's setting, make the outer wall of bellows receive the protection, the telescopic tube is bellows deformation in step also simultaneously, does not influence the normal use of compensator, simultaneously under the effect of first rotation bolt, can make screw slider and second rotate the bolt respectively to the stable centre gripping in edge of go-between and connecting pipe outer wall, increase centre gripping lifting surface area, the cooperation sealing washer can effectively prevent that the terminal surface from revealing.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a perspective sectional view of the structure of the present invention;

FIG. 3 is a perspective sectional view of the first rotary bolt of the present invention;

FIG. 4 is a side view of the structural locating ring of the present invention;

fig. 5 is a side view of the structural connecting ring of the present invention.

In the figure: 1. a bellows; 2. a connecting ring; 3. a seal ring; 4. a connecting pipe; 5. a positioning ring; 6. a first rotating bolt; 7. a slide bar; 8. a threaded slider; 9. a first mounting block; 10. a second mounting block; 11. a second turning bolt; 12. a screw; 13. provided is a telescopic sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the flexible-rotation high-pressure-resistant rotary compensator comprises a corrugated pipe 1, wherein two ends of the outer wall of the corrugated pipe 1 are fixedly sleeved with connecting rings 2, one sides of the connecting rings 2 are fixedly nested with sealing rings 3, connecting pipes 4 are movably clamped on the opposite sides of the two connecting rings 2, and positioning rings 5 are fixedly sleeved on the connecting pipes 4;

the last activity interlude of holding ring 5 has first rotation bolt 6, and one side fixedly connected with slide bar 7 of holding ring 5, sliding connection has screw slider 8 on slide bar 7, and screw slider 8 screw cup joints on first rotation bolt 6, the outer wall of go-between 2 and connecting pipe 4 is first installation piece 9 of fixedly connected with and second installation piece 10 respectively, and the activity interlude has second rotation bolt 11 on the first installation piece 9, and the second rotation bolt 11 other end run through second installation piece 10 and with screw slider 8 threaded connection, two first installation pieces 9 pass through screw rod 12 fixed connection, two go-between 2 pass through telescope tube 13 fixed connection.

In this embodiment, as shown in fig. 2 and 3, the number of the sealing rings 3 is two, one side of the connection ring 2 is provided with two nesting grooves matched with the sealing rings 3, and one side of the connection ring 2 is provided with a convex ring clamped with the connection pipe 4.

In this embodiment, as shown in fig. 2 and fig. 3, circular arc recess and circular arc lug have all been seted up to the relative one side of go-between 2 and connecting pipe 4, and two circular arc annular grooves and two circular arc bulge loops block each other respectively, through the bulge loop that the relative one side of go-between 2 and connecting pipe 4 set up, circular arc bulge loop and circular arc annular's setting, the joint stress surface improves by a wide margin when making its leakproofness improve, avoid two sealing washer 3 excessive extrusion grinding simultaneously, effectual improvement life, and bellows 1 tip activity is pegged graft and is further improved the leakproofness in connecting pipe 4.

In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the opposite ends of the first rotating bolt 6 and the second rotating bolt 11 are provided with the engaging grooves, and the threaded slider 8 is threadedly engaged with the engaging portions of the first rotating bolt 6 and the second rotating bolt 11.

In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the first mounting blocks 9, the second mounting blocks 10, and the first rotating bolts 6 are six in number, and the screw rods 12 are three in number, so that the threaded sliders 8 and the bolts of the second rotating bolts 11 can be respectively and stably clamped on the edges of the outer walls of the connecting ring 2 and the connecting pipe 4 under the action of the first rotating bolts 6, the clamping force-bearing area is increased, the end face leakage can be effectively prevented by matching with the sealing ring 3, and the safety is high.

In this embodiment, as shown in fig. 1 and fig. 2, the telescopic tube 13 is an anti-corrosion metal telescopic tube structure, and the telescopic tube 13 is sleeved outside the corrugated tube 1, so that the outer wall of the corrugated tube 1 is protected by the arrangement of the telescopic tube 13, and meanwhile, the telescopic tube 13 can also deform the corrugated tube 1 synchronously without affecting the normal use of the compensator.

The utility model discloses a use method and advantage: when the rotary compensator capable of flexibly rotating and resisting high pressure is installed, the working process is as follows:

as shown in fig. 1, 2, 3, 4 and 5, a connection pipe 4 on one side is first sleeved on an end portion on one side of the corrugated pipe 1, the connection pipe 4 is engaged with one side opposite to the connection ring 2, a second rotating bolt 11 is inserted into a first mounting block 9, inserted into a second mounting block 10, and engaged with the side of a first rotating bolt 6, and the first rotating bolt 6 is rotated to move a threaded slider 8 which is screwed on the first rotating bolt to the second mounting block 10 under the guidance of a slide rod 7 until the connection pipe 4 is tightly connected with the connection ring 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high security metal expansion joint, includes bellows (1), its characterized in that: the two ends of the outer wall of the corrugated pipe (1) are fixedly sleeved with connecting rings (2), one side of each connecting ring (2) is fixedly nested with a sealing ring (3), the opposite sides of the two connecting rings (2) are movably clamped with connecting pipes (4), and the connecting pipes (4) are fixedly sleeved with positioning rings (5);

the utility model discloses a set up the activity interlude on holding ring (5) and have first rotation bolt (6), and one side fixedly connected with slide bar (7) of holding ring (5), sliding connection has screw thread slider (8) on slide bar (7), and screw thread slider (8) screw thread cup joints on first rotation bolt (6), the outer wall of go-between (2) and connecting pipe (4) is first installation piece (9) of fixedly connected with and second installation piece (10) respectively, and the activity interlude has second rotation bolt (11) on first installation piece (9), and second rotation bolt (11) other end run through second installation piece (10) and with screw thread slider (8) threaded connection, two first installation piece (9) are through screw rod (12) fixed connection, two go-between (2) are through telescopic tube (13) fixed connection.

2. The high safety metal expansion joint of claim 1, wherein: the quantity of sealing washer (3) is two, two and sealing washer (3) matched with nested groove have been seted up to one side of go-between (2), and the bulge loop of block mutually with connecting pipe (4) has been seted up to one side of go-between (2).

3. The high safety metal expansion joint of claim 1, wherein: circular arc recess and circular arc lug have all been seted up to go-between (2) and the relative one side of connecting pipe (4), and two circular arc annular and two circular arc bulge loops mutual block respectively.

4. The high safety metal expansion joint of claim 1, wherein: first rotation bolt (6) and second rotate the relative one end of bolt (11) and all be provided with matched with joint groove, screw slider (8) screw thread cup joints the joint department at first rotation bolt (6) and second rotation bolt (11).

5. The high safety metal expansion joint of claim 1, wherein: the number of the first mounting blocks (9), the second mounting blocks (10) and the first rotating bolts (6) is six, and the number of the screws (12) is three.

6. The high safety metal expansion joint of claim 1, wherein: the telescopic sleeve (13) is an anti-corrosion metal telescopic pipe structure, and the telescopic sleeve (13) is sleeved outside the corrugated pipe (1).