CN212156090U

CN212156090U - Reducing connecting pipe for metal composite fire-resistant air pipe

Info

Publication number: CN212156090U
Application number: CN202020712444.9U
Authority: CN
Inventors: 董连勇; 李刚; 林华好
Original assignee: Mg Crystal Construction Technology Chongqing Co Ltd
Current assignee: Mg Crystal Construction Technology Chongqing Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-15
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to a ventilation exhaust pipe technical field specifically discloses a reducing connecting pipe for compound fire-resistant tuber pipe of metal, including four refractory slabs, flange structure and connecting strip, four refractory slabs include two sector plates and two side boards, the side board is the C font, four refractory slabs constitute the return bend that the cross section is the rectangle, the flange structure is fixed at the tip of return bend, the connecting strip is fixed on the side of return bend, the transversal L shape of personally submitting of connecting strip, a plurality of first screw holes have been seted up on the connecting strip, the flange structure includes that the middle part is equipped with the connection pad of trompil, be equipped with four connecting plates on the connection pad, a plurality of second screw holes have all been seted up on four connecting plates, be equipped with a plurality of flange holes on the connection pad, the space has between the adjacent connecting plate, the space can. Because the setting in space between the adjacent connecting plate for the connecting strip can enter the space, thereby make the connecting strip can hug closely on the outer wall of fire-resistant plate, thereby improved the leakproofness of whole connecting pipe.

Description

Reducing connecting pipe for metal composite fire-resistant air pipe

Technical Field

The utility model relates to a ventilation technical field that discharges fume, in particular to reducing connecting pipe that is used for compound fire-resistant tuber pipe of metal.

Background

The air duct is also called ventilating duct, and is a municipal infrastructure for circulating air and reducing the concentration of harmful gases. The ventilation duct is generally divided into the following parts by material: steel plate air pipes, galvanized plate air pipes, stainless steel ventilation pipes, glass steel ventilation pipes, plastic ventilation pipes, composite material ventilation pipes, double-sided aluminum foil heat-preservation ventilation pipes, single-sided color steel heat-preservation air pipes and the like; except making the air circulation, air pipe still need play the effect of discharging fume in some times, consequently, the leakproofness requirement to air pipe is higher, air pipe is usually that multisection pipeline connects gradually and forms, owing to the design needs, then need reducing pipe connection to the pipeline of different diameters, and single pipeline forms with reducing pipe is assembled by four panel and connecting elements usually, current connecting elements includes connecting strip and flange structure usually, but present flange structure is when the equipment, because the connecting strip has certain thickness, the flange structure can't laminate completely with the outer wall of panel, make the sealing performance of the reducing pipe of equipment descend.

SUMMERY OF THE UTILITY MODEL

The utility model provides a reducing connecting pipe for compound fire-resistant tuber pipe of metal to flange structure department has the gap between the pipe wall in solving current reducing pipe, makes the not good problem of leakproofness of reducing pipe.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a reducing connecting pipe for compound fire-resistant tuber pipe of metal, including four refractory slabs, flange structure and connecting strip, four refractory slabs are trapezoidal board, and four refractory slabs constitute the trapezoidal pipe that the cross section is the rectangle, the flange structure is fixed at the tip of trapezoidal pipe, and the connecting strip is fixed on the side of trapezoidal pipe, and the transversal L shape of personally submitting of connecting strip all has seted up a plurality of first screw holes on two sides of connecting strip, flange structure includes that the middle part is equipped with the connection pad of trompil, be equipped with four connecting plates on the connection pad, all seted up a plurality of second screw holes on four connecting plates, be equipped with a plurality of flange holes on the connection pad, have the space between the adjacent connecting plate, the connecting strip can be held in the space.

The technical principle and the effect of the technical scheme are as follows:

this scheme is through connecting the pipeline that two cross-sectional areas are different, in this scheme in addition because the setting in space between the adjacent connecting plate for the connecting strip can enter the space, thereby makes the connecting strip can hug closely on the outer wall of fire-resistant plate, thereby has improved the leakproofness of whole connecting pipe.

Further, the shape of the gap is the same as the cross-sectional shape of the connecting strip.

Has the advantages that: after the connecting pipe is assembled, the side edge of the connecting strip close to the end part of the connecting strip is tightly attached to the side edge of the connecting plate.

Furthermore, a limiting strip is fixed on the inner wall of the connecting strip, the cross section of the limiting strip is T-shaped, a first clamping groove and a second clamping groove are formed between the limiting strip and the connecting strip, and the first clamping groove and the second clamping groove are perpendicular to each other.

Has the advantages that: like this when the equipment connecting pipe, earlier go into first draw-in groove and second draw-in groove with the refractory slab card, nail into first threaded hole again, play preliminary positioning action to the refractory slab like this, prevent to bind the in-process and produce the aversion.

Further, the projection area of the opening in the axial direction is not smaller than that of the bent pipe in the axial direction.

Has the advantages that: thus, the air flow or the smoke in the connecting pipe can be discharged quickly.

Furthermore, four limiting plates are further fixed on the connecting disc, the limiting plates are arranged in parallel with the adjacent connecting plates, and a third clamping groove is formed between each limiting plate and each connecting plate.

Has the advantages that: when the flange structure is installed, the fire-resistant plates are clamped into the third clamping grooves respectively, and then the second threaded holes are nailed through the screws, so that the flange structure is fixed at the end part of the rectangular pipe.

Further, a plurality of first screw holes and a plurality of second screw hole are the equidistance and distribute.

Has the advantages that: set up like this for through the fixed screw of first screw hole and second screw hole and fire-resistant plate, the power equipartition that bears improves the stability of connecting on each screw.

Furthermore, a glue groove is formed in one side, close to the gap, of the connecting plate.

Has the advantages that: because a tiny gap exists between the connecting plate and the connecting strip all the time, a glue groove for filling fireproof sealant is formed, and the gap can be completely sealed.

Further, the glue groove is arranged on one side far away from the opening.

Has the advantages that: set up like this, make things convenient for operating personnel to beat and glue the processing.

Furthermore, a pouring groove is formed in the side edge, close to the side of the gap, of the connecting plate, and the pouring groove is communicated with the glue groove.

Has the advantages that: the setting in embedment groove for sealed glue can follow the gluey groove along in the gap between embedment groove infiltration connecting strip and the connecting plate, better sealed.

Furthermore, the encapsulation groove is equipped with a plurality ofly, and a plurality of encapsulation groove equidistance distributes.

Has the advantages that: the arrangement of a plurality of pouring grooves enables the sealant to better fill gaps between the connecting strips and the connecting plates.

Drawings

Fig. 1 is an axonometric view of embodiment 1 of the present invention;

fig. 2 is a cross-sectional view of embodiment 1 of the present invention;

fig. 3 is an isometric view of a connecting strip in embodiment 1 of the invention;

fig. 4 is an axonometric view of a flange structure in embodiment 1 of the present invention;

fig. 5 is a side view of a flange structure according to embodiment 2 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the fireproof plate comprises a fireproof plate 1, a connecting strip 10, a first threaded hole 11, a limiting strip 12, a first clamping groove 13, a second clamping groove 14, an opening 15, a connecting disc 16, a connecting plate 17, a second threaded hole 18, a flange hole 19, a gap 20, a limiting plate 21, a third clamping groove 22, a glue groove 23 and an encapsulation groove 24.

Example 1 is substantially as shown in figures 1 and 2 of the accompanying drawings:

a reducing connecting pipe for compound fire-resistant tuber pipe of metal, including four refractory slabs 1, flange structure and connecting strip 10, refractory slab 1 adopts metal composite board to make in this embodiment, for example, the brilliant board of magnesium, four connecting plates 17 are trapezoidal plate, four refractory slabs 1 constitute the trapezoidal pipe that the cross section is greater than the broadside for the long limit, the cross section of trapezoidal pipe is the rectangle, the flange structure is equipped with two and fixes the tip at the rectangular pipe in this embodiment, and connecting strip 10 fixes on the side of trapezoidal pipe, the transversal L shape of personally submitting of connecting strip 10, a plurality of equidistance first screw hole 11 that distributes have all been seted up on two sides of connecting strip 10.

As shown in fig. 3, a limiting strip 12 with a T-shaped cross section is further fixed on the inner wall of the connecting strip 10, a first clamping groove 13 and a second clamping groove 14 are formed between the limiting strip 12 and the connecting strip 10, the first clamping groove 13 and the second clamping groove 14 are perpendicular to each other, when the rectangular tube is assembled, the fire-resistant plate 1 is firstly clamped into the first clamping groove 13 and the second clamping groove 14 respectively, and then screws are screwed into the first threaded holes 11, so that a preliminary positioning effect is achieved, and displacement during the binding process is prevented.

In this embodiment, the two flanges have the same shape, and the size of the two flanges is changed according to the pipe diameters of the two ends of the rectangular pipe, and as shown in fig. 4, the flange structure includes a connecting plate 16 having an opening 15 at the middle, wherein the projected area of the opening hole 15 in the axial direction is the same as the projected area of the side rectangular tube in the axial direction, four connecting plates 17 are integrally formed on the connecting disc 16, the connecting plates 17 are vertical to the connecting disc 16, the four connecting plates 17 surround to form a rectangle, a plurality of second threaded holes 18 which are distributed at equal intervals are arranged on the four connecting plates 17, a plurality of flange holes 19 are also arranged on the connecting disc 16, wherein, the adjacent connecting plates 17 have a gap 20 between them, the gap 20 can accommodate the connecting bar 10, that is, when assembling the connecting pipe, the two sides of the connecting strip 10 are located in the gap 20, which ensures that the entire connecting plate 17 can be tightly attached to the outer wall of the fire-resistant plate 1 when the flange structure is installed.

In addition, four limit plates 21 are fixed on the connecting disc 16, the limit plates 21 are arranged in parallel with the adjacent connecting plates 17, and a third clamping groove 22 is formed between the limit plates 21 and the connecting plates 17, so that when the flange structure is installed, the fire-resistant plates 1 are respectively clamped in the third clamping grooves 22, and then the second threaded holes 18 are nailed through screws, so that the flange structure is fixed at the end part of the rectangular tube.

After the connection strip 10 and the flange structure in the embodiment are assembled with the fire-resistant plate 1, due to the arrangement of the gap 20 between the adjacent connection plates 17, the connection strip 10 can enter the gap 20, so that the connection strip 10 can be tightly attached to the outer wall of the fire-resistant plate 1, and the sealing performance of the whole connection pipe is improved.

Example 2 is substantially as shown in figure 5:

the difference from example 1 is that: in order to ensure the tightness of the connection pipe, the shape of the gap 20 is the same as the cross-sectional shape of the connection strip 10, i.e. the side of the connection strip 10 close to the flange structure abuts against the side of the connection plate 17 after the installation is completed.

In addition, a glue groove 23 is formed in the side edge, close to the gap 20, of the connecting plate 17, the glue groove 23 is used for filling fireproof sealant, the glue groove 23 is arranged far away from the side of the opening 15, in order to enable the sealant to have a better effect, a plurality of uniformly distributed encapsulation grooves 24 are further formed in the side edge, close to the gap 20, of the connecting plate 17, the encapsulation grooves 24 are communicated with the glue groove 23, and therefore when the sealant is filled, the sealant can enter the encapsulation grooves 24 through the glue groove 23, and the sealing effect is better.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A reducing connecting pipe for compound fire-resistant tuber pipe of metal, including four refractory slabs, flange structure and connecting strip, its characterized in that: the four fire-resistant plates are trapezoidal plates, the four fire-resistant plates form a trapezoidal pipe with a rectangular cross section, the flange structure is fixed at the end of the trapezoidal pipe, the connecting strip is fixed on the side edge of the trapezoidal pipe, the cross section of the connecting strip is L-shaped, a plurality of first threaded holes are formed in two side edges of the connecting strip, the flange structure comprises a connecting disc with a hole formed in the middle, four connecting plates are arranged on the connecting disc, a plurality of second threaded holes are formed in the four connecting plates, a plurality of flange holes are formed in the connecting disc, a gap is formed between every two adjacent connecting plates, and the connecting strip can be accommodated in the gap.

2. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 1, wherein: the shape of the gap is the same as the cross section shape of the connecting strip.

3. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 1, wherein: the inner wall of the connecting strip is fixed with a limiting strip, the cross section of the limiting strip is T-shaped, a first clamping groove and a second clamping groove are formed between the limiting strip and the connecting strip, and the first clamping groove and the second clamping groove are perpendicular to each other.

4. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 1, wherein: the projection area of the opening in the axial direction is not smaller than that of the trapezoid pipe in the axial direction.

5. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 1, wherein: the connecting plate is further fixedly provided with four limiting plates, the limiting plates are arranged in parallel with the adjacent connecting plates, and a third clamping groove is formed between each limiting plate and each connecting plate.

6. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 1, wherein: the first threaded holes and the second threaded holes are distributed at equal intervals.

7. The reducing connecting pipe for the metal composite fire-resistant air pipe according to any one of claims 1 to 6, wherein: and one side of the connecting plate, which is close to the gap, is provided with a glue groove.

8. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 7, wherein: the glue groove is arranged on one side far away from the opening.

9. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 8, wherein: and the side edge of one side, close to the gap, of the connecting plate is also provided with an encapsulation groove, and the encapsulation groove is communicated with the glue groove.

10. The reducing connecting pipe for the metal composite fire-resistant air pipe as claimed in claim 9, wherein: the encapsulation groove is equipped with a plurality ofly, and a plurality of encapsulation groove equidistance distributes.