CN111720639A

CN111720639A - High withstand voltage PFA bellows

Info

Publication number: CN111720639A
Application number: CN202010492053.5A
Authority: CN
Inventors: 林晓丽; 林友富; 蔡珉
Original assignee: Taizhou Yongxing Trading Co ltd
Current assignee: Taizhou Yongxing Trading Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-09-29

Abstract

The invention discloses a high-pressure-resistance PFA corrugated pipe which comprises a first corrugated pipe and a second corrugated pipe, wherein two ends of the first corrugated pipe are respectively provided with a connecting port which is matched with each other, two ends of the first corrugated pipe are respectively provided with a supporting frame at the connecting ports, a reinforcing pipe is arranged on the surface of the first corrugated pipe, the reinforcing pipe is spirally wound on the surface of the first corrugated pipe, and a reinforcing rib is arranged inside the reinforcing pipe. According to the high-pressure-resistance PFA corrugated pipe, the connecting port is supported by the support frame, so that the port of the corrugated pipe can be prevented from deforming, leakage caused by deformation of two ends due to pressure applied to the two ends is prevented, the two ends are increased to bear higher pressure, the connection between the ports is tighter, a certain compensation amount is provided by the matching grooves and the matching raised heads, and the integral pressure resistance of a pipeline can be increased by the reinforcing pipe.

Description

High withstand voltage PFA bellows

Technical Field

The invention relates to the field of connecting pipelines, in particular to a high-pressure-resistance PFA corrugated pipe.

Background

The corrugated pipe is a tubular object formed by connecting foldable corrugated sheets along the folding and stretching directions. The open end of the bellows is fixed, the sealed end is in a free state, and the elasticity is increased by using an auxiliary helical spring or a reed. The length direction of the pipe is extended under the action of internal pressure during working, so that the movable end generates displacement in a certain relation with the pressure, and the corrugated pipe with a large caliber is adopted when the corrugated pipe is used for laying a water pipe, so that the corrugated pipe can adapt to allowance compensation during transportation and burying, and the flexibility is better compared with other pipelines. However, the existing corrugated pipe for water delivery is difficult to bear increased pressure when being laid on the ground, so that water pipes are easy to break, and when all the water pipes are connected, the connecting ports are simply sleeved together, and then the connecting ports are filled with more filling materials, so that the connecting mode is poor, and the ports at two ends are easy to deform, so that the leakage of the interfaces is caused.

Disclosure of Invention

The invention mainly aims to provide a high-pressure-resistance PFA corrugated pipe which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a high withstand voltage PFA bellows, includes first bellows and second bellows, the both ends of first bellows all are provided with the connection port of mutually supporting, the both ends of first bellows are located the equal erection bracing frame of connection port department, the surface of first bellows is provided with the reinforced pipe, the reinforced pipe is the heliciform and winds the surface at first bellows, the inside of reinforced pipe is provided with the strengthening rib.

Preferably, the support frame includes arc frame, first connecting strip, connecting screw, adjustment sleeve, centre frame and second connecting strip, be provided with three second connecting strip on the centre frame, the fixed slot has been seted up on the second connecting strip, the inside adjustment sleeve that is provided with of fixed slot, adjustment sleeve's inside has connecting screw through threaded connection, connecting screw's the other end is provided with first connecting strip, and is provided with the arc frame on the first connecting strip.

Preferably, the first corrugated pipe comprises an anti-corrosion layer, a base layer, a reinforcing layer and a water leakage prevention layer, wherein the anti-corrosion layer, the base layer, the reinforcing layer and the water leakage prevention layer are sequentially distributed from outside to inside, and the water leakage prevention layer is in contact with the support frame.

Preferably, the connection port comprises a matching groove, a first matching port, a second matching port, a matching raised head and a surrounding sleeve, the first matching port is provided with the matching raised head, the second matching port is provided with the surrounding sleeve, the port of the second matching port is provided with the matching groove, the matching groove and the matching raised head are matched with each other, and the surrounding sleeve is attached to the first matching port.

Preferably, a sealing ring is arranged at the joint of the first corrugated pipe and the second corrugated pipe, and arc grooves are formed in the inner surface and the outer surface of the first corrugated pipe and the outer surface of the second corrugated pipe.

Preferably, both ends of the second corrugated pipe are provided with connecting ports which are matched with each other, and both ends of the second corrugated pipe are located at the connecting ports and are provided with mounting supports.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the supporting frame is arranged, so that the port of the corrugated pipe can be prevented from deforming, leakage is prevented, the pressure born by the two ends is increased, the connection ports are arranged, the connection between the ports is more compact, a certain compensation amount is provided through the matching grooves and the matching raised heads, and the reinforcing pipes and the reinforcing ribs are arranged, so that the overall pressure resistance of the pipeline can be increased, and the corrugated pipe is practical.

Drawings

FIG. 1 is a schematic view showing the overall structure of a PFA corrugated tube of the present invention;

FIG. 2 is a schematic view of the inside of a PFA bellows tube of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of a supporting frame of a PFA corrugated tube with high pressure resistance according to the present invention;

FIG. 5 is a schematic view of a bellows layer of a high pressure PFA bellows according to the present invention;

fig. 6 is a schematic view showing the connection of a connection port of a high pressure-resistant PFA bellows according to the present invention.

In the figure: 1. a support frame; 101. a circular arc frame; 102. a first connecting bar; 103. connecting a screw rod; 104. adjusting the sleeve; 105. a center frame; 106. a second connecting strip; 2. a reinforcement tube; 3. a first bellows; 301. an anti-corrosion layer; 302. a base layer; 303. a reinforcing layer; 304. a water leakage prevention layer; 4. a second bellows; 5. a connection port; 501. a mating groove; 502. a first mating port; 503. a second mating port; 504. matching the raised head; 505. a surrounding sleeve; 6. an arc groove; 7. reinforcing ribs; 8. and (5) sealing rings.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, a PFA corrugated tube with high pressure resistance includes a first corrugated tube 3 and a second corrugated tube 4, both ends of the first corrugated tube 3 are provided with connection ports 5 that are matched with each other, both ends of the first corrugated tube 3 are provided with support frames 1 at the connection ports 5, a reinforced tube 2 is provided on the surface of the first corrugated tube 3, the reinforced tube 2 is spirally wound on the surface of the first corrugated tube 3, and a reinforcing rib 7 is provided inside the reinforced tube 2;

the support frame 1 comprises an arc frame 101, a first connecting strip 102, a connecting screw 103, an adjusting sleeve 104, a center frame 105 and second connecting strips 106, wherein the center frame 105 is provided with three second connecting strips 106, the second connecting strips 106 are provided with fixing grooves, the adjusting sleeve 104 is arranged inside the fixing grooves, the connecting screw 103 is connected inside the adjusting sleeve 104 through threads, the other end of the connecting screw 103 is provided with the first connecting strip 102, and the arc frame 101 is arranged on the first connecting strip 102; the first corrugated pipe 3 comprises an anti-corrosion layer 301, a base layer 302, a reinforcing layer 303 and a leakage-proof water layer 304, wherein the anti-corrosion layer 301, the base layer 302, the reinforcing layer 303 and the leakage-proof water layer 304 are sequentially distributed from outside to inside, and the leakage-proof water layer 304 is in contact with the support frame 1; the connection port 5 comprises a matching groove 501, a first matching port 502, a second matching port 503, a matching raised head 504 and a surrounding sleeve 505, the first matching port 502 is provided with the matching raised head 504, the second matching port 503 is provided with the surrounding sleeve 505, the port of the second matching port 503 is provided with the matching groove 501, the matching groove 501 and the matching raised head 504 are matched with each other, and the surrounding sleeve 505 is attached to the first matching port 502; a sealing ring 8 is arranged at the joint of the first corrugated pipe 3 and the second corrugated pipe 4, and arc grooves 6 are formed in the inner surfaces and the outer surfaces of the first corrugated pipe 3 and the second corrugated pipe 4; both ends of the second corrugated pipe 4 are provided with connecting ports 5 which are matched with each other, and both ends of the second corrugated pipe 4 are located at the connecting ports 5 and are provided with the supporting frames 1.

Before being buried, the support frame 1 is installed at the connecting ports 5 at the two ends of the corrugated pipe, specifically, three adjusting sleeves 104 are placed in the fixing grooves of the second connecting strips 106 on the center frame 105, the connecting screw 103 is screwed into the threads in the adjusting sleeves 104, the arc frames 101 of the three first connecting strips 102 face the inner wall of the corrugated pipe, at this time, the adjusting sleeves 104 are rotated to make the connecting screw 103 move and extend, the arc frames 101 are pressed against the inner wall of the corrugated pipe, the prepared corrugated pipe is laid underground, then the sealing ring 8 is placed between the connecting ports 5 of the first corrugated pipe 3 and the second corrugated pipe 4 and connected with each other, so that the matching groove 501 of the first matching port 502 is inserted into the matching boss 504 of the second matching port 503, and the matching groove 501 and the matching boss 504 are trapezoidal in shape, the inclined planes of the first corrugated pipe 3 and the second corrugated pipe 4 can be matched more tightly, the second matching port 503 is wrapped inside the first matching port 502 through the wrapping sleeve 505, the outer side of the joint of the first corrugated pipe 3 and the second corrugated pipe 4 is simply sealed by cement and the like, when a larger pressure is applied, the support frame 1 is connected with the corrugated pipes, so that the ports can be ensured not to deform under the condition that the connecting ports 5 at two ends are stressed, further, the leakage of the ports caused by deformation is avoided, because the surface of the corrugated pipe is provided with the spiral reinforcing pipe 2, the reinforcing pipe 2 and the corrugated pipe are integrated, the reinforcing ribs 7 are arranged inside the reinforcing pipe 2, the strength borne by the corrugated pipe can be enhanced at the moment, the leakage-proof water layer 304 of the corrugated pipe can prevent water leakage, the reinforcing layer 303 and the base layer 302 strengthen the internal structure, and the corrosion-proof layer 301 can prevent external corrosion, the arc groove 6 on the corrugated pipe can change the axial length when being subjected to larger pressure, and the pressure of high-pressure water on the corrugated pipe is relieved, so that the corrugated pipe is practical.

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 invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high withstand voltage PFA bellows which characterized in that: including first bellows (3) and second bellows (4), the both ends of first bellows (3) all are provided with connection port (5) of mutually supporting, the both ends of first bellows (3) are located connection port (5) and locate equal erection bracing frame (1), the surface of first bellows (3) is provided with reinforced pipe (2), reinforced pipe (2) are the surface that the heliciform was around first bellows (3), the inside of reinforced pipe (2) is provided with strengthening rib (7).

2. A high pressure resistant PFA bellows as claimed in claim 1, wherein: the support frame (1) comprises an arc frame (101), a first connecting strip (102), a connecting screw rod (103), an adjusting sleeve (104), a center frame (105) and a second connecting strip (106), wherein the center frame (105) is provided with three second connecting strips (106), a fixing groove is formed in the second connecting strip (106), the adjusting sleeve (104) is arranged inside the fixing groove, the inside of the adjusting sleeve (104) is connected with the connecting screw rod (103) through threads, the other end of the connecting screw rod (103) is provided with the first connecting strip (102), and the arc frame (101) is arranged on the first connecting strip (102).

3. A high pressure resistant PFA bellows as claimed in claim 1, wherein: the first corrugated pipe (3) comprises an anti-corrosion layer (301), a base layer (302), a reinforcing layer (303) and a leakage-proof water layer (304), wherein the anti-corrosion layer (301), the base layer (302), the reinforcing layer (303) and the leakage-proof water layer (304) are distributed from outside to inside in sequence, and the leakage-proof water layer (304) is in contact with the support frame (1).

4. A high pressure resistant PFA bellows as claimed in claim 1, wherein: the connecting port (5) comprises a matching groove (501), a first matching port (502), a second matching port (503), a matching raised head (504) and a surrounding sleeve (505), the matching raised head (504) is arranged on the first matching port (502), the surrounding sleeve (505) is arranged on the second matching port (503), the matching groove (501) is formed in the port of the second matching port (503), the matching groove (501) and the matching raised head (504) are matched with each other, and the surrounding sleeve (505) is attached to the first matching port (502).

5. A high pressure resistant PFA bellows as claimed in claim 1, wherein: the sealing device is characterized in that a sealing ring (8) is arranged at the joint of the first corrugated pipe (3) and the second corrugated pipe (4), and arc grooves (6) are formed in the inner surface and the outer surface of the first corrugated pipe (3) and the outer surface of the second corrugated pipe (4).

6. A high pressure resistant PFA bellows as claimed in claim 1, wherein: the both ends of second bellows (4) all are provided with connection port (5) of mutually supporting, the both ends of second bellows (4) are located connection port (5) department and all install support frame (1).