CN210860236U - PE bellows for municipal drainage - Google Patents

Abstract

The utility model discloses a PE bellows for municipal drainage, including first bellows and second bellows, the one end fixedly connected with intubate that first bellows and second bellows are connected, the second bellows inner wall seted up with intubate assorted slot, three first seal groove has been seted up on the intubate surface, it is three the inside piston ring that all is provided with of first seal groove, the inner wall that the slot is close to second bellows tip is provided with stagnant water rubber circle, first bellows and second bellows tip homogeneous body are provided with the flange, two the second seal groove has been seted up between the flange lateral wall, two be provided with a plurality of fastener between the flange surface. The utility model discloses a be equipped with a plurality of piston rings and fastener, be favorable to increasing sealed life-span, prevent to produce and leak, effectually prevent to have seted up the fixed orifices on the flange surface, produce after long-term the use and warp, lead to fixed insecure to the later stage of being convenient for is dismantled.

Description

PE bellows for municipal drainage

Technical Field

The utility model relates to a bellows technical field, in particular to PE bellows for municipal drainage.

Background

High Density Polyethylene (HDPE) double-wall corrugated pipe is abbreviated as PE corrugated pipe. The HDPE double-wall corrugated pipe is a novel pipe with an outer wall with an annular structure and a smooth inner wall, and is firstly developed in Germany in the early 80 s. After more than ten years of development and improvement, the product series is developed from a single variety to a complete product series. The production process and the use technology are well mature. Due to the excellent performance and the relatively economic cost, the method has been greatly popularized and applied in developed countries such as Europe and America.

However, the PE bellows is at the laying process of drainage, the interface all adopts the mode and the flange joint's of hot melt socket joint and hot melt butt joint mode to connect, and the mode of hot melt socket joint and hot melt, lead to the difficult dismantlement of later stage PE pipe, and lead to the PE coupling to damage after the dismantlement, and can produce after using for a long time and leak, and the flange joint mode has generally seted up the fixed orifices on the flange surface, this fixed mode leads to the fixed orifices to warp easily, produce smooth silk, lead to the later stage to be difficult to dismantle, and its sealed mode adopts the sealing washer, long-term use leads to the sealing washer to lead to corroding with the sewage contact, influence sealed effect.

Therefore, it is necessary to develop a PE corrugated pipe for municipal drainage to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PE bellows for municipal drainage through being equipped with a plurality of piston rings and fastener, is favorable to increasing sealed life-span, prevents to produce and leaks, and the effectual fixed orifices of having seted up on the flange surface that prevents produces after long-term the use and warp, leads to fixed insecure to the later stage of being convenient for is dismantled, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a PE corrugated pipe for municipal drainage comprises a first corrugated pipe and a second corrugated pipe, wherein one end of the first corrugated pipe, which is connected with the second corrugated pipe, is fixedly connected with an insertion pipe, the inner wall of the second corrugated pipe is provided with a slot matched with the insertion pipe, the surface of the insertion pipe is provided with three first sealing grooves, piston rings are arranged in the three first sealing grooves, the inner wall of the slot, which is close to the end part of the second corrugated pipe, is provided with a water stop rubber ring, the end parts of the first corrugated pipe and the second corrugated pipe are integrally provided with a flange, a second sealing groove is arranged between the two flange side walls, a sealing ring is arranged in the second sealing groove, a plurality of fastening devices are arranged between the outer surfaces of the two flanges, each fastening device comprises a first clamping pin and a second clamping pin, and one side of the inner walls of the, two the draw-in groove has all been seted up on the flange surface, and its draw-in groove sets up for the circle form, the equal fixedly connected with locating lever in one end both sides that first bayonet lock is close to the second bayonet lock, the locating lever sets up with the inside activity grafting of second bayonet lock, the swivelling joint has the regulation pole between first bayonet lock both ends, adjust pole one end and the inside threaded connection of second bayonet lock.

Preferably, the inner diameter of the cannula is equal to the inner diameters of the first bellows and the second bellows, and the outer diameter of the cannula is equal to the inner diameter of the slot.

Preferably, the outer wall of the insertion pipe and the inner part of the slot are both smooth planes, and the length of the insertion pipe is equal to that of the slot.

Preferably, the outer diameter of the overlapped two ends of the three piston rings is equal to the outer diameter of the insertion pipe, and the angle between the openings of the two adjacent piston rings is 90-120 degrees.

Preferably, the number of fastening means is four, six or eight, evenly arranged around the flange.

Preferably, the section of the adjusting rod located inside the first bayonet lock is connected with the first bayonet lock through a bearing, and the section of the adjusting rod located inside the second bayonet lock is arranged in a threaded mode.

The utility model discloses a technological effect and advantage:

1. the utility model discloses an adopt a plurality of piston rings to seal first bellows and second ripple, be favorable to doing benefit to the sealing characteristic that the piston ring has to increase sealed effect, and increase sealed life-span, effectually prevent that the bellows from producing after long-time the use and leaking.

2. The utility model discloses a be equipped with fastener, be favorable to drawing the round pin to fix the flange through first bayonet lock and second, effectually prevent to have seted up the fixed orifices on the flange surface, produce after long-term the use and warp, lead to fixed insecure to the later stage of being convenient for is dismantled.

Drawings

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

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic view of the structure of the part a in fig. 1 according to the present invention;

fig. 4 is a schematic structural view of a portion B in fig. 1 according to the present invention;

fig. 5 is a right side view of a first bellows structure of the present invention;

fig. 6 is a left side view of a second bellows structure of the present invention;

fig. 7 is a schematic structural view of the portion C in fig. 2 according to the present invention.

In the figure: 1. a first bellows; 2. a second bellows; 3. inserting a tube; 4. a slot; 5. a first seal groove; 6. a piston ring; 7. a water-stopping rubber ring; 8. a flange; 9. a second seal groove; 10. a seal ring; 11. a first bayonet lock; 12. a second bayonet lock; 13. a card slot; 14. positioning a rod; 15. and adjusting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a PE corrugated pipe for municipal drainage as shown in figures 1-7, which comprises a first corrugated pipe 1 and a second corrugated pipe 2, wherein one end of the first corrugated pipe 1 connected with the second corrugated pipe 2 is fixedly connected with an insertion pipe 3, the inner wall of the second corrugated pipe 2 is provided with an insertion groove 4 matched with the insertion pipe 3, the surface of the insertion pipe 3 is provided with three first sealing grooves 5, piston rings 6 are arranged in the three first sealing grooves 5, the first corrugated pipe 1 and the second corrugated pipe are sealed by adopting a plurality of piston rings 6, which is beneficial to the sealing characteristic of the piston rings 6, thereby increasing the sealing effect and the sealing life, effectively preventing the corrugated pipe from leaking after being used for a long time, the inner wall of the insertion groove 4 close to the end part of the second corrugated pipe 2 is provided with a water stopping rubber ring 7, by arranging the water stopping rubber ring 7, when the piston ring 6 cannot be sealed, the sealing is further facilitated through the water stop rubber ring 7, the flanges 8 are uniformly arranged at the end parts of the first corrugated pipe 1 and the second corrugated pipe 2, the second sealing groove 9 is formed between the side walls of the two flanges 8, the sealing ring 10 is arranged in the second sealing groove 9, the sealing ring 10 is arranged, so that the sealing ring is facilitated to prevent moist gas from contacting the water stop rubber ring 7 through the gap of the flanges 8 to cause the direct expansion of the water stop rubber ring 7 and influence the sealing characteristic of the piston ring 6, a plurality of fastening devices are arranged between the outer surfaces of the two flanges 8, each fastening device comprises a first clamping pin 11 and a second clamping pin 12, one side of the inner walls of the first clamping pin 11 and one side of the inner walls of the second clamping pin 12 are both in a hook-shaped protruding arrangement, the surfaces of the two flanges 8 are both provided with clamping grooves 13, the clamping grooves 13 are in a ring-shaped, wherein second draw-in groove 13 is inside seted up with 14 assorted constant head tanks of locating lever, the setting of pegging graft with the inside activity of second bayonet lock 12 is 14 to the locating lever, it has regulation pole 15 to change the connection between 11 both ends of first bayonet lock, adjust 15 one end and 12 inside threaded connection of second bayonet lock, wherein second bayonet lock 12 is inside seted up with adjust 15 assorted screw holes of pole, through being equipped with fastener, is favorable to drawing the round pin to fix flange 8 through first bayonet lock 11 and second, and the effectual fixed orifices of having seted up on flange 8 surface that prevents produces after long-term use warp, leads to fixed insecure to the later stage of being convenient for is dismantled.

Furthermore, in the above technical solution, the inner diameter of the insertion tube 3 is equal to the inner diameters of the first bellows 1 and the second bellows 2, and the outer diameter of the insertion tube 3 is equal to the inner diameter of the insertion groove 4, so as to prevent a large gap from being generated between them and the sealing is difficult;

further, in the above technical solution, the outer wall of the insertion tube 3 and the inside of the insertion slot 4 are both smooth plane arrangements, and the length of the insertion tube 3 is equal to that of the insertion slot 4, which is beneficial to sealing;

further, in the above technical solution, the outer diameter of the overlapped two ends of the three piston rings 6 is equal to the outer diameter of the insertion tube 3, and the angle range between the openings of the two adjacent piston rings 6 is 90-120 degrees, so as to prevent the occurrence of blow-by between the three piston rings 6 and the resulting poor sealing;

furthermore, in the above technical solution, the number of the fastening devices is four, six or eight, and the fastening devices are uniformly arranged around the flange 8, which is beneficial to uniformly stressing and fixing the flange 8;

further, in the above technical solution, a section of the adjusting rod 15 located inside the first bayonet lock 11 is connected with the first bayonet lock 11 by a bearing, and a section of the adjusting rod 15 located inside the second bayonet lock 12 is provided with a thread.

This practical theory of operation:

referring to the attached drawings 1-7 of the specification, when the first corrugated pipe 1 and the second corrugated pipe 2 are connected, the surface of the insertion pipe 3 at one end of the first corrugated pipe 1 is installed with the piston ring 6, and the angle between the openings of the two adjacent piston rings 6 is adjusted, then the insertion pipe 3 is inserted into the insertion groove 4 of the second corrugated pipe 2, so that the three piston rings 6 seal between the insertion pipe 3 and the insertion groove 4, then the sealing ring 10 is added into the second sealing groove 9, the two flanges 8 are aligned, then the protruding part of the first bayonet 11 of the fastening device is placed into the clamping groove 13, then the adjusting rod 15 is rotated to make the adjusting rod 15 be positioned at one section inside the second bayonet 12, the adjusting rod is rotated inside the second bayonet 12, the second bayonet 12 is moved to the position close to the first bayonet 11 by the action of the two positioning rods 14 until the protruding position of the second bayonet 12 enters the clamping groove 13, thereby fix between two flanges 8, when dismantling first bellows 1 and second bellows 2, loosen fastener, take off fastener, pull first bellows 1 and second bellows 2, make intubate 3 pull out from slot 4 is inside to effectual dismantling first bellows 1 and second bellows 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a PE bellows for municipal drainage, includes first bellows (1) and second bellows (2), its characterized in that: an insertion pipe (3) is fixedly connected to one end of the first corrugated pipe (1) connected with the second corrugated pipe (2), a slot (4) matched with the insertion pipe (3) is formed in the inner wall of the second corrugated pipe (2), three first sealing grooves (5) are formed in the surface of the insertion pipe (3), piston rings (6) are arranged in the three first sealing grooves (5), a water stop rubber ring (7) is arranged on the inner wall, close to the end portion of the second corrugated pipe (2), of the slot (4), flanges (8) are integrally arranged at the end portions of the first corrugated pipe (1) and the second corrugated pipe (2), a second sealing groove (9) is formed between the side walls of the two flanges (8), a sealing ring (10) is arranged in the second sealing groove (9), a plurality of fastening devices are arranged between the outer surfaces of the two flanges (8), each fastening device comprises a first clamping pin (11) and a second clamping pin (12), first bayonet lock (11) and second bayonet lock (12) inner wall one side are colluding the protruding setting of form, two draw-in groove (13) have all been seted up on flange (8) surface, and its draw-in groove (13) are the setting of circle form, the equal fixedly connected with locating lever (14) in one end both sides that first bayonet lock (11) are close to second bayonet lock (12), locating lever (14) and the inside activity grafting setting of second bayonet lock (12), swing joint has regulation pole (15) between first bayonet lock (11) both ends, adjust pole (15) one end and second bayonet lock (12) inside threaded connection.

2. The PE corrugated pipe for municipal drainage according to claim 1, wherein: the inner diameter of the insertion pipe (3) is equal to the inner diameters of the first corrugated pipe (1) and the second corrugated pipe (2), and the outer diameter of the insertion pipe (3) is equal to the inner diameter of the insertion groove (4).

3. The PE corrugated pipe for municipal drainage according to claim 1, wherein: the outer wall of the insertion pipe (3) and the inner part of the insertion groove (4) are both smooth plane settings, and the length of the insertion pipe (3) is equal to that of the insertion groove (4).

4. The PE corrugated pipe for municipal drainage according to claim 1, wherein: the outer diameter of the two overlapped ends of the three piston rings (6) is equal to the outer diameter of the insertion pipe (3), and the angle range between the openings of the two adjacent piston rings (6) is 90-120 degrees.

5. The PE corrugated pipe for municipal drainage according to claim 1, wherein: the number of the fastening devices is four, six or eight, and the fastening devices are uniformly arranged around the flange (8).

6. The PE corrugated pipe for municipal drainage according to claim 1, wherein: the adjusting rod (15) is connected with the first bayonet lock (11) through a bearing, and the adjusting rod (15) is arranged in the second bayonet lock (12) and is provided with a section of threads.

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