CN209819011U - Reinforced corrugated pipe compensator - Google Patents

Abstract

The utility model relates to a strenghthened type bellows compensator, it includes corrugated metal pipe body, ring flange and pull rod, the ring flange coaxial line is fixed at the both ends of corrugated metal pipe body, one side fixed connection relative with the ring flange respectively at the both ends of pull rod, the outer bellows of outside fixedly connected with of corrugated metal pipe body, the shape of outer bellows and the shape adaptation of corrugated metal pipe body, and be formed with the cavity, be provided with a plurality of reinforcing steel bands between the arc arch of outer bellows and the corrugated metal pipe body is protruding.

Description

Reinforced corrugated pipe compensator

Technical Field

The utility model belongs to the technical field of bellows compensator technique and specifically relates to a strenghthened type bellows compensator is related to.

Background

The expansion joint of the corrugated pipe is made of metal corrugated pipe. It can flex in the axial direction and also allows for a small amount of bending. The common axial bellows expansion joint is used for axial length compensation on a pipeline.

The existing corrugated pipe compensator comprises a metal corrugated pipe body, flange plates fixed at two ends of the metal corrugated pipe and a pull rod fixed between the flange plates. When the corrugated pipe compensator is used in a sewage pipeline, when the metal corrugated pipe body is extruded by soil and the like, the metal corrugated pipe body is extremely easy to damage, and the service life of the corrugated pipe compensator is not ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a strenghthened type corrugated pipe compensator has the compressive strength who improves the metal bellows body, prolongs corrugated pipe compensator's life's advantage.

The utility model provides a technical scheme that its technical problem adopted is:

a reinforced corrugated pipe compensator comprises a metal corrugated pipe body, flange plates and pull rods, wherein the flange plates are coaxially fixed at two ends of the metal corrugated pipe body, two ends of each pull rod are respectively and fixedly connected with one side opposite to the flange plates,

the outer corrugated pipe is fixedly connected to the outer side of the metal corrugated pipe body, the shape of the outer corrugated pipe is matched with that of the metal corrugated pipe body, a cavity is formed between the shape of the outer corrugated pipe and the shape of the metal corrugated pipe body, and a plurality of reinforcing steel belts are arranged between the arc-shaped protrusions of the outer corrugated pipe and the arc-shaped protrusions of the metal corrugated pipe body.

Further: the reinforcing steel belt comprises an arc-shaped plate and a connecting plate, wherein the arc-shaped plate is provided with a plurality of parts along the circumferential direction of the metal corrugated pipe body, the arc-shaped plate is adjacent to the metal corrugated pipe body and fixedly connected with the connecting plate, and the connecting plate is attached to the outer side wall of the arc-shaped protrusion of the metal corrugated pipe body.

Further: and a buffer cushion is arranged on one side of the arc-shaped plate close to the outer-layer corrugated pipe.

Further: the reinforced corrugated pipe is characterized in that a reinforced gasket is fixedly connected between the metal corrugated pipe body and the outer corrugated pipe through bolts, a plurality of reinforced gaskets are arranged along the length direction of the metal corrugated pipe body, and the reinforced gaskets are located between the adjacent arc-shaped bulges of the outer corrugated pipe.

Further: ceramic fiber cotton is filled between the outer-layer corrugated pipe and the metal corrugated pipe body.

Further: and two ends of the outer-layer corrugated pipe are respectively provided with a buffer piece.

Further: the bolster includes bulge loop, tetrafluoro packing ring, adjusting bolt and nut, the bulge loop is fixed on the lateral wall of outer bellows, tetrafluoro packing ring centre gripping is between bulge loop and ring flange, adjusting bolt passes back and nut threaded connection from ring flange, tetrafluoro packing ring and bulge loop in proper order.

Further: and the inner side wall of the metal corrugated pipe body is coated with a corrosion-resistant layer.

The utility model has the advantages that:

1. the reinforced steel belt is adopted, so that the pressure of the metal corrugated pipe body can be radially dispersed, and the compressive strength of the metal corrugated pipe body is improved;

2. the reinforced gasket is adopted, so that the connection strength between the outer-layer corrugated pipe and the metal corrugated pipe body can be improved;

3. the ceramic fiber cotton is adopted, has good heat insulation performance, can effectively block heat conduction, and has certain elasticity and compressibility, so that the requirements of expansion amount and adjustment amount can be met;

4. the buffer piece is adopted, so that the axial movement of the outer-layer corrugated pipe can be buffered, and the service life of the outer-layer corrugated pipe is prolonged.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view showing the connection relationship between the reinforced steel band, the metal bellows body and the outer bellows of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1.

In the figure, 1, a metal corrugated pipe body; 2. a flange plate; 3. a pull rod; 4. an outer corrugated pipe; 5. reinforcing the steel belt; 51. an arc-shaped plate; 511. a cushion pad; 52. a connecting plate; 6. a reinforcing washer; 7. ceramic fiber cotton; 8. a buffer member; 81. a convex ring; 82. a tetrafluoro washer; 83. adjusting the bolt; 84. a nut; 9. a corrosion resistant layer.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

Referring to fig. 1, a reinforced corrugated pipe compensator includes a metal corrugated pipe body 1, flanges 2 fixed at two ends of the metal corrugated pipe body 1, and a pull rod 3 fixed between the two flanges 2. The corrosion-resistant layer 9 is coated on the inner side wall of the metal corrugated pipe body 1, and the corrosion-resistant layer 9 is preferably a polytetrafluoroethylene composite layer, so that the corrosion resistance of the metal corrugated pipe body 1 can be improved.

As shown in fig. 2, the metal corrugated pipe body 1 is sleeved with an outer corrugated pipe 4 matched with the shape of the metal corrugated pipe body 1, a cavity is formed between the outer corrugated pipe 4 and the metal corrugated pipe body, a plurality of reinforcing steel strips 5 are arranged in the cavity, and the reinforcing steel strips 5 are fixed between the arc-shaped protrusions of the outer corrugated pipe 4 and the arc-shaped protrusions of the metal corrugated pipe body 1. When the corrugated pipe compensator receives external pressure, the reinforced steel strip 5 can disperse the radial pressure of the metal corrugated pipe body 1, and the outer-layer corrugated pipe 4 can not only protect the metal corrugated pipe body 1, but also bear part of the external pressure.

As shown in fig. 2, the reinforced steel strip 5 includes an arc plate 51 and a connecting plate 52, the arc plate 51 is provided with a plurality of along the circumference of the metal corrugated pipe body 1, adjacent arc plates 51 are fixedly connected through the connecting plate 52, and the connecting plate 52 is attached to the outer side wall of the arc protrusion of the metal corrugated pipe body 1. The arc-shaped plate 51 is provided with a buffer pad 511 at a side close to the outer corrugated pipe 4, and the buffer pad 511 can buffer the impact force of the external pressure on the arc-shaped plate 51. The arc-shaped plates 51 can disperse the pressure borne by the outer-layer corrugated pipe 4 to the connecting plate 52, so that the overall stress capacity of the corrugated pipe compensator is improved.

As shown in fig. 3, in order to further enhance the connection strength between the outer corrugated tube 4 and the metal corrugated tube body 1, a reinforcing gasket 6 is disposed between adjacent arc-shaped protrusions of the outer corrugated tube 4, and the reinforcing gasket 6 is fixedly connected with the outer corrugated tube 4 and the metal corrugated tube body 1 through bolts.

As shown in figure 1, ceramic fiber cotton 7 is filled between the outer layer corrugated pipe 4 and the metal corrugated pipe body 1, the ceramic fiber cotton 7 has good heat insulation property, can effectively block heat conduction, and has certain elasticity and compressibility, thereby meeting the requirements of expansion amount and adjustment amount

As shown in fig. 1, the buffer members 8 are respectively disposed at two ends of the outer bellows 4, each buffer member 8 includes a convex ring 81, a teflon washer 82, an adjusting bolt 83 and a nut 84, the convex ring 81 is fixed on the outer side wall of the outer bellows 4, the teflon washer 82 is clamped between the convex ring 81 and the flange 2, and the adjusting bolt 83 is in threaded connection with the nut 84 after sequentially passing through the flange 2, the teflon washer 82 and the convex ring 81. The buffer member 8 can buffer the axial movement of the outer-layer corrugated pipe 4, and the service life of the outer-layer corrugated pipe 4 is prolonged. The tetrafluoro gasket 82 can improve the sealing performance between the outer bellows 4 and the metal bellows tube body 1.

The specific implementation mode is as follows: when the corrugated pipe compensator receives external pressure, the outer-layer corrugated pipe 4 firstly bears partial pressure, then the pressure is transmitted to the arc-shaped plate 51, and the arc-shaped plate 51 radially disperses the pressure to the connecting plate 52, so that the pressure borne by the metal corrugated pipe body 1 is reduced, the compression strength of the metal corrugated pipe body 1 is improved, and the service life of the corrugated pipe compensator is prolonged.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. The utility model provides a strenghthened type corrugated pipe compensator, includes corrugated metal pipe body (1), ring flange (2) and pull rod (3), the both ends at corrugated metal pipe body (1) are fixed to ring flange (2) coaxial line, the both ends of pull rod (3) respectively with one side fixed connection that ring flange (2) are relative, its characterized in that:

the corrugated metal pipe is characterized in that an outer corrugated pipe (4) is fixedly connected to the outer side of the corrugated metal pipe body (1), the shape of the outer corrugated pipe (4) is matched with the shape of the corrugated metal pipe body (1) to form a cavity, and a plurality of reinforcing steel strips (5) are arranged between arc-shaped protrusions of the outer corrugated pipe (4) and arc-shaped protrusions of the corrugated metal pipe body (1).

2. The reinforced corrugated pipe compensator of claim 1, wherein:

reinforcing steel band (5) include arc (51) and connecting plate (52), arc (51) are provided with a plurality of along the circumference of corrugated metal pipe body (1), and are adjacent arc (51) between through connecting plate (52) fixed connection, the bellied outside wall of arc of connecting plate (52) and corrugated metal pipe body (1) is laminated mutually.

3. The reinforced corrugated pipe compensator of claim 2, wherein:

and a buffer cushion (511) is arranged on one side of the arc-shaped plate (51) close to the outer-layer corrugated pipe (4).

4. The reinforced corrugated pipe compensator of claim 1, wherein:

the corrugated metal pipe is characterized in that a reinforcing gasket (6) is fixedly connected between the corrugated metal pipe body (1) and the outer corrugated pipe (4) through bolts, a plurality of reinforcing gaskets (6) are arranged in the length direction of the corrugated metal pipe body (1), and the reinforcing gaskets (6) are located between the adjacent arc-shaped bulges of the outer corrugated pipe (4).

5. The reinforced corrugated pipe compensator of claim 4, wherein:

ceramic fiber cotton (7) is filled between the outer-layer corrugated pipe (4) and the metal corrugated pipe body (1).

6. The reinforced corrugated pipe compensator of claim 1, wherein:

and buffer parts (8) are respectively arranged at two ends of the outer-layer corrugated pipe (4).

7. The reinforced corrugated pipe compensator of claim 6, wherein:

buffer member (8) are including bulge loop (81), tetrafluoro packing ring (82), adjusting bolt (83) and nut (84), bulge loop (81) are fixed on the lateral wall of outer bellows (4), tetrafluoro packing ring (82) centre gripping is between bulge loop (81) and ring flange (2), adjusting bolt (83) pass back and nut (84) threaded connection from ring flange (2), tetrafluoro packing ring (82) and bulge loop (81) in proper order.

8. The reinforced corrugated pipe compensator of claim 5, wherein:

the inner side wall of the metal corrugated pipe body (1) is coated with a corrosion-resistant layer (9).