CN210830868U

CN210830868U - Metal corrugated pipe assembly

Info

Publication number: CN210830868U
Application number: CN201921981747.4U
Authority: CN
Inventors: 宋永俊
Original assignee: Zhucheng Yongbang Pipe Co ltd
Current assignee: Zhucheng Yongbang Pipe Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-06-23
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a corrugated metal pipe assembly, including multilayer metal vacuum bellows and clamp, multilayer metal vacuum bellows includes ripple body, cutting ferrule link and straight limit end. The corrugated pipe body comprises an outer pipe wall, a vacuum cavity, an inner pipe wall, an adsorption purification layer and a metal net layer from outside to inside in sequence, wherein the outer pipe wall and the inner pipe wall comprise a plurality of wave crests, a plurality of wave troughs and side walls located between the wave crests and the wave troughs, the thicknesses of the wave crests and the wave troughs are larger than those of the side walls, the service life of the corrugated pipe body is long, the pressure resistance is high, and the corrugated pipe body can purify water or air. The clamp comprises a C-shaped inner ring and a C-shaped outer ring, and can be elastically deformed when the corrugated pipe is fastened, so that the inner diameter of the clamp matched with the clamp can be adjusted within a certain range, and the clamp can be used for fastening corrugated pipes with different pipe diameters.

Description

Metal corrugated pipe assembly

Technical Field

The utility model relates to a corrugated metal pipe assembly.

Background

The corrugated pipe is at the in-process of transport medium, because of the intraductal wall trough of corrugated pipe is protruding to intraductal, cause dirt or impurity to pile up in corrugated pipe crest inner wall department very easily, the corruption of bellows is accelerated, moreover, the corrugated pipe must have wearing and tearing in the course of the work, especially crest and trough are in wearing and tearing more serious after the extension of a lot of shortens, and the individual layer bellows can only change immediately after receiving wearing and tearing to reveal, can not continue to use, and the clamp of connecting the corrugated pipe generally only can fasten rather than the corrugated pipe of corresponding pipe diameter, can not be general in the corrugated pipe of different pipe diameters.

Disclosure of Invention

To the above-mentioned not enough, the utility model discloses a but life height, convenient to use, resistance to pressure are strong, metal bellows subassembly of medium such as purified water or air to the clamp that matches with it can be at a certain within range internal diameter size of adjustment, can be used for fastening the bellows of different pipe diameters.

The utility model relates to a metal corrugated pipe assembly, including multilayer metal vacuum bellows and clamp, multilayer metal vacuum bellows includes corrugated pipe body, cutting ferrule link and straight limit end, and corrugated pipe body one end is rather than integrated into one piece's straight limit end, and the other end is the cutting ferrule link of welding above that, straight limit end is connected with its pipe fitting of waiting to be connected that needs to be connected with the clamp, corrugated pipe body includes outer pipe wall, vacuum cavity, interior pipe wall, adsorbs purification layer and metal mesh layer from outside to inside in proper order, adsorbs purification layer can adsorb harmful substance in the medium transportation process, medium such as purified water or air, outer pipe wall and interior pipe wall include a plurality of crests, a plurality of troughs and lie in the lateral wall between crest and trough, crest and trough set up in turn, just the thickness of crest and trough department is greater than the thickness of lateral wall department, the clamp includes a C shape inner circle and C shape outer lane, the C shape outer lane is at the opening part and outwards extends into two parallel stationary blades, it has corresponding through-hole to open respectively on two stationary blades, passes with the bolt the through-hole to screw up with the nut and make C shape circle take place to deform in order to fasten the bellows spare, the opening of C shape inner circle and C shape outer lane sets up relatively, therefore the clamp can fasten the bellows of different pipe diameters size in certain extent as required, and it is more convenient to use.

The utility model discloses a preferred scheme does, adsorb and purify the layer and constitute by the filling at the moderate amount active carbon between inner tube wall and the metal mesh layer, the filling volume of active carbon can be 1/3-2/3 for holding the chamber volume between metal mesh layer and the inner tube wall. Because the activated carbon is not filled, a certain space is left between the metal mesh layer and the inner pipe wall, the activated carbon can generate irregular movement under the drive of a medium in the working process of the corrugated pipe, and dirt attached to the metal mesh layer is flicked down under the collision of the activated carbon on the metal mesh layer, so that the metal mesh layer is kept clean, and the corrosion to the metal mesh layer is reduced.

The utility model discloses a another kind of preferred scheme does, inner circle outside C shape open-ended both ends symmetry is equipped with the spill tooth, and the inboard C shape open-ended both ends symmetry in outer lane is equipped with the convex tooth that matches with the spill tooth of inner circle, utilizes ratchet structure principle to make inner circle and outer lane chucking when screwing up the nut, loosens and outwards opens C shape outer lane after the nut, makes outer lane and inner circle natural segregation, easily opens the clamp.

A layer of metal net sleeve is added in the corrugated pipe, so that dirt or impurities in a medium can be effectively prevented from being accumulated at the outwards-protruded wave crest on the inner side of the corrugated pipe body, and the corrosion to the corrugated inner layer of the corrugated pipe is reduced; because the stress of the wave crests and the wave troughs of the corrugated pipe is greater than that of the side wall parts in the working process, the abrasion of the wave crests and the wave troughs is greater than that of the side wall parts, and therefore, the thickness of the corrugated pipe body does not need to be integrally increased because the wall thickness of the wave crests and the wave troughs of the corrugated pipe is greater than that of the side wall parts, and the corrugated pipe with longer service life and stronger compressive strength can be obtained only by properly increasing the wall thickness of the wave crests and the wave troughs; to the bellows that has even thickness, its thickness with under the same condition of the thickness of crest and trough, the utility model discloses a bellows is lighter to also can reach the same or close life and compressive strength.

Because the corrugated pipe body of the utility model comprises two layers of corrugated layers of the outer pipe wall and the inner pipe wall, the worn parts are only the outer side of the outer pipe wall and the inner side of the inner pipe wall, thereby greatly prolonging the service life of the corrugated pipe; moreover, because the corrugated layers are two layers, the corrugated pipe can be continuously used after a certain layer of the corrugated pipe is worn and broken, and cannot stop working immediately to wait for replacement; meanwhile, a vacuum cavity is formed between the two corrugated layers, so that a good heat preservation effect can be achieved.

Drawings

The invention will be further explained with reference to the accompanying drawings, which are simplified schematic drawings and which illustrate, in a schematic manner, the basic structure of the invention and which therefore only show the components associated with the invention:

FIG. 1 is a block diagram of a metal bellows assembly of the present invention;

fig. 2 is a schematic view of the clamp of the present invention;

FIG. 3 is a schematic cross-sectional view of the bellows body of the present invention;

FIG. 4 is a schematic diagram of the accumulation of impurities in a medium on the inner wall of a corrugated pipe in the prior art;

in the figure, 1, a corrugated pipe body 2, a ferrule connecting end 3 and a straight edge end; 4. the device comprises a hoop, 41, a hoop inner ring, 411, concave teeth, 42, a hoop outer ring, 421, convex teeth, 422, a fixing sheet, 5, a pipe fitting to be connected, 6, a bolt, 61 and a nut; 11. an outer pipe wall 12, an inner pipe wall 13, a vacuum cavity 14, an adsorption purification layer 15, a metal mesh layer 111, wave crests 112, wave troughs 113 and a side wall; 114. the accumulated impurities.

Detailed Description

The invention will now be described in further detail with reference to the drawings and examples, the following detailed description is intended to provide further explanation of the invention, and the terminology used is for the purpose of describing particular embodiments only.

As shown in fig. 1, the utility model relates to a metal bellows subassembly, including multilayer metal vacuum bellows and clamp 4, multilayer metal vacuum bellows includes bellows body 1, cutting ferrule link 2 and straight flange end 3. One end of the corrugated pipe body 1 is a straight edge end 3 which is integrally formed with the corrugated pipe body, and the other end of the corrugated pipe body is a cutting sleeve connecting end 2 which is welded on the corrugated pipe body. The straight edge end 3 is connected with a pipe fitting 5 to be connected which needs to be connected by adopting a clamp 4, as shown in fig. 2, the clamp 4 comprises a C-shaped clamp inner ring 41 and a C-shaped clamp outer ring 42. The clamp outer ring 42 extends outwards at the opening to form two parallel fixing pieces 422, corresponding through holes are formed in the two fixing pieces 422 respectively and are penetrated through by bolts 6, and the C-shaped clamp inner ring 41 and the clamp outer ring 42 are screwed down by nuts 61 to deform so as to fasten the corrugated pipe fitting. The openings of the clamp inner ring 41 and the clamp outer ring 42 are arranged oppositely. The both ends symmetry of clamp inner circle 41 outside C shape opening is equipped with spill tooth 411, and the both ends symmetry of the inboard C shape opening of clamp outer lane 42 is equipped with the convex tooth 421 that matches with the spill tooth 411 of clamp inner circle 41, utilizes ratchet structure principle to make clamp inner circle 41 and clamp outer lane 42 chucking.

As shown in fig. 3, the bellows body 1 includes, in order from outside to inside, an outer tube wall 11, a vacuum chamber 13, an inner tube wall 12, an adsorption purification layer 14, and a metal mesh layer 15. The outer tube wall 11 and the inner tube wall 12 comprise a plurality of peaks 111, a plurality of valleys 112 and a sidewall 113 located between the peaks 111 and the valleys 112, the peaks 111 and the valleys 112 are alternately arranged, the thickness of the peaks 111 and the valleys 112 is larger than that of the sidewall 113, the thickness is gradually reduced from the peaks 111 to the sidewall 113, the thickness is gradually increased from the sidewall 113 to the valleys 112, and a vacuum cavity 13 is formed between the inner tube wall 12 and the outer tube wall 11 by vacuumizing. The addition of the expanded metal layer 15 to the innermost side of the bellows body 1, i.e. the inner side of the inner tube wall 12, makes it difficult for the peaks 111 of the inner tube wall 12 of the bellows to generate the impurities 114 accumulated as shown in fig. 4 due to the expanded metal layer 15. An appropriate amount of activated carbon (1/3-2/3 of the volume of the cavity between the metal mesh layer 15 and the inner pipe wall 12) is filled between the inner pipe wall 12 and the metal mesh layer 15 to form an adsorption purification layer 14.

The trough 112 is the pipe wall to the inboard salient of lumen, and the crest 111 is the pipe wall to the 1 outside salient of ripple body.

In summary, the utility model reduces the corrosion to the inner layer of the corrugated pipe by arranging the metal net cover and the active carbon, and can also purify media such as water or air; because the wall thickness of the wave crest 111 and the wave trough 112 of the corrugated pipe of the utility model is larger than the part of the side wall 113, the thickness of the corrugated pipe body 1 does not need to be increased integrally, and the corrugated pipe with longer service life and stronger compressive strength can be obtained only by properly increasing the wall thickness of the wave crest 111 and the wave trough 112; for the corrugated pipe with uniform thickness, under the condition that the thickness of the corrugated pipe is the same as that of the wave crest 111 and the wave trough 112, the corrugated pipe of the utility model is lighter and lighter, and can also reach the same or similar service life and compressive strength; because set up corrugated pipe body 1 into two-layer ripple layer, and the centre is the vacuum, consequently, reduced the wearing and tearing of bellows, increased bellows life, can also play certain heat preservation effect to after the wearing and tearing of a certain layer ripple layer of bellows break, can also continue to use, be unlikely to stop work immediately and wait for the change. The utility model discloses the metal bellows subassembly adopts one end cutting ferrule to connect, other end clamp connection's mode, and is simple and convenient, and clamp 4 adopts the design of C shape structure, can make clamp 4 produce elastic deformation in fastening bellows and when treating connecting pipe fitting 5, the pipe fitting of the different diameters in the certain range can be fixed, and, tighten nut 61 during the fastening bellows, utilize the ratchet structure principle, make clamp outer lane 42's convex tooth 421 detain in clamp inner circle 41's spill tooth 411, consequently, clamp 4 should not take place not hard up, loosen behind the nut 61 and outwards open C shape clamp outer lane 42, make clamp outer lane 42 and clamp inner circle 41 natural segregation, easily open clamp 4.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art 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

1. The utility model provides a metal bellows subassembly, includes multilayer metal vacuum bellows and clamp, and multilayer metal vacuum bellows includes corrugated pipe body, cutting ferrule link and straight limit end, and corrugated pipe body one end is rather than integrated into one piece's straight limit end, and the other end is the cutting ferrule link of welding on it, straight limit end adopts the clamp connection rather than the waiting of need being connected to connect pipe fitting, its characterized in that: corrugated pipe body includes outer pipe wall, vacuum cavity, interior pipe wall, adsorbs purification layer and metal mesh layer in proper order from outside to inside, outer pipe wall and interior pipe wall include a plurality of crests, a plurality of troughs and lie in the lateral wall between crest and the trough, crest and trough set up in turn, just the thickness of crest and trough department is greater than the thickness of lateral wall department, the clamp includes the inner circle and the C shape outer lane of a C shape, the C shape outer lane outwards extends into two parallel stationary blades at the opening part, it has corresponding through-hole to open respectively on two stationary blades, passes with the bolt the through-hole to screw up with the nut and make C shape circle take place deformation in order to fasten corrugated pipe spare, the opening of C shape inner circle and C shape outer lane sets up relatively.

2. The metal bellows assembly of claim 1, wherein: the adsorption purification layer is formed by filling activated carbon between the inner pipe wall and the metal net layer.

3. The metal bellows assembly of claim 2, wherein: the filling amount of the activated carbon is 1/3-2/3 of the volume of the cavity between the metal mesh layer and the inner pipe wall.

4. The metal bellows assembly of claim 1, wherein: concave teeth are symmetrically arranged at two ends of the C-shaped opening on the outer side of the inner ring, convex teeth matched with the concave teeth of the inner ring are symmetrically arranged at two ends of the C-shaped opening on the inner side of the outer ring, and the inner ring and the outer ring are clamped tightly by utilizing the ratchet structure principle.