Air pipe penetrating deformation joint node

Abstract

The utility model discloses an air pipe penetrating deformation joint node which comprises a left wall body, a right wall body and an air pipe section penetrating through the left wall body and the right wall body, a deformation joint is arranged between the left wall body and the right wall body, corresponding through-wall holes are formed in the left wall body and the right wall body, and outer waterproof layers are arranged on the surfaces of the through-wall holes. An inner waterproof layer is arranged on the outer surface of the air pipe section, and a non-combustible heat preservation layer is arranged between the outer waterproof layer and the inner waterproof layer. The hose connector is fixedly arranged at one end of the air pipe section in a sealed mode, and the fireproof valves are arranged at the other end of the air pipe section and one end of the hose connector respectively and hung at the bottom of a floor through the damping hanging bracket. The joint has high waterproof and heat preservation capacity, can adapt to deformation of the expansion joint, and is high in structural stability, long in service life and wide in application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct installation, in particular to an air duct expansion joint node. Background Art

[0002] During the installation and construction of air ducts in construction projects, air ducts often pass through walls with deformation joints (also known as expansion joints). Air ducts passing through walls with deformation joints often cause water seepage at the deformation joints or cause the air ducts at that location to stretch, compress, deform, or even rupture due to unreasonable installation, resulting in a decrease in thermal insulation and waterproofing capabilities, and even causing safety accidents. The utility model patent with authorization announcement number CN 204785108 U discloses a connection device for an air duct passing through a wall with an expansion joint, including a hanger, a left sleeve, a right sleeve, an air duct section, a waterproof layer and a flexible connecting pipe. The left and right sleeves are respectively buried horizontally in the left and right walls, and the air duct section is installed in the left and right sleeves, and the left and right end sections of the air duct section are respectively extended out of the left and right walls. The hanger is fixedly installed on the outer walls of the left and right walls, and the air duct section is fixed to the left and right walls. There is a waterproof layer between the left and right sleeves and the air duct section. Flexible connecting pipes are respectively installed on the left and right end sections of the air duct section extending out of the left and right walls. The left and right flexible connecting pipes are respectively connected to the left and right pipe openings of the disconnected air duct. The installation is convenient and the installation quality of the air duct is improved. However, the structure does not have thermal insulation ability, and the waterproof layer is not fixed and is prone to falling off, affecting the waterproof ability of the position. Utility Model Content

[0003] The utility model aims to provide a node for an air duct passing through a deformation joint, which has strong waterproof and heat-insulating capabilities, can adapt to the deformation of the expansion joint, has strong structural stability, long service life and broad application prospects.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A duct-through-deformation-joint node comprises a left wall, a right wall, and a duct section passing through the left and right walls, wherein a deformation joint is provided between the left and right walls, corresponding through-wall holes are provided on the left and right walls, and an outer waterproof layer is provided on the surface of the through-wall holes; an inner waterproof layer is provided on the outer surface of the duct section, and a non-combustible thermal insulation layer is provided between the outer waterproof layer and the inner waterproof layer; a hose joint is sealed and fixedly provided at one end of the duct section, and a fire damper is respectively provided at the other end of the duct section and one end of the hose joint, and the fire damper is hoisted to the bottom of the floor slab by a shock-absorbing hanger.

[0006] Preferably, the hose connector is made of non-combustible material.

[0007] Preferably, the shock-absorbing hanger includes a lower hanger connected to the top of the fire damper, a shock-absorbing hook installed on the top of the lower hanger, an upper hanger installed on the top of the shock-absorbing hook and a hanging piece installed on the top of the upper hanger, and the top of the hanging piece is fixedly connected to the bottom of the floor slab.

[0008] Preferably, embedded parts are pre-embedded on the outer side of the right wall and located circumferentially of the through-wall hole.

[0009] Preferably, the embedded part has an L-shaped cross section.

[0010] Preferably, a first baffle is provided on the outside of the embedded part, and the circumferential dimension of the first baffle is adapted to the circumferential dimension of the embedded part; one end of the non-combustible thermal insulation layer abuts against the first baffle.

[0011] Preferably, a second baffle is provided on the inner side of the left wall, and the circumferential size of the second baffle is adapted to the size of the through-wall hole; one end of the non-combustible thermal insulation layer rests on the second baffle.

[0012] Preferably, the wall thickness of the air duct section is 2 mm.

[0013] In the present invention, the outer waterproof layer and the inner waterproof layer provide a double-layer waterproof effect and have a strong waterproof capability. The outer waterproof layer can also protect the through-wall hole, making the inner surface of the through-wall hole smoother and facilitating the installation of the non-combustible thermal insulation layer. The non-combustible thermal insulation layer not only insulates the air duct section and the wall, but also has a flame retardant effect. The hose connector can adapt to the deformation of the expansion joint, ensure the stability of the air duct installation and adapt to the deformation of the expansion joint. The first baffle and the second baffle can limit the position of the non-combustible thermal insulation layer, so that the non-combustible thermal insulation layer can be installed tightly. The shock-absorbing hanger can reduce the shock of the entire installation and improve the stability of the air duct installation. The two fire dampers can block the transmission of fire or smoke at both ends of the left wall and the right wall, thereby improving the fire protection capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is an enlarged schematic diagram of the A-direction structure of the utility model;

[0016] Figure 3 This is an enlarged schematic diagram of the B-direction structure of the utility model;

[0017] In the figure: 1. Left wall; 2. Right wall; 3. Duct section; 4. Expansion joint; 5. External waterproof layer; 6. Internal waterproof layer; 7. Non-combustible insulation layer; 8. Hose connector; 9. Fire damper; 10. Shock-absorbing hanger; 11. Floor slab; 12. Embedded parts; 13. First baffle; 14. Second baffle; 15. Duct; 100. Lower suspension rod; 101. Shock-absorbing hook; 102. Upper suspension rod; 103. Hanging parts. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] like Figure 1 、 Figure 2 and Figure 3 The node shown is a duct passing through a deformation joint, comprising a left wall 1, a right wall 2 and a duct section 3 passing through the left wall 1 and the right wall 2. The wall thickness of the duct section 3 is 2 mm, which can prevent the duct section 3 from being deformed when the non-combustible insulation layer 7 is installed, thereby affecting the exhaust capacity.

[0020] A deformation joint 4 is provided between the left wall 1 and the right wall 2, and corresponding through-wall holes are provided on the left wall 1 and the right wall 2. The through-wall holes are rectangular, and the distance between the outer wall of the air duct section 3 and the inner wall of the through-wall hole is not less than 50 mm.

[0021] An outer waterproof layer 5 is set on the inner surface of the wall hole. Specifically, a waterproof material with a thickness of not less than 2 mm can be applied to the inner surface of the wall hole, and a waterproof material is also applied upward on the outer side of the left wall 1. When the non-combustible insulation layer 7 at this position is installed, a layer of waterproof material is also applied on the outer side of the non-combustible insulation layer 7, so that the outer waterproof layer 5 here is T-shaped, thereby improving the waterproof ability.

[0022] An inner waterproof layer 6 is provided on the outer surface of the air duct section 3, correspondingly disposed within the two wall penetrations. A non-combustible insulation layer 7 is provided between the outer waterproof layer 5 and the inner waterproof layer 6. A section of non-combustible insulation layer 7 is provided within each of the left wall 1 and the right wall 2, respectively. The length of the non-combustible insulation layer 7 is adapted to the thickness of the wall. The non-combustible insulation layer 7 is made of a flexible non-combustible insulation material.

[0023] A hose connector 8 is sealed and fixed to one end of the air duct section 3. Hose connector 8 is made of a non-combustible material. In this embodiment, it is made of a silica glass titanium hose. A fire damper 9 is sealed and fixed to the other end of the air duct section 3 and one end of the hose connector 8. The top of the fire damper 9 is suspended from the bottom of the floor slab 11 via a shock-absorbing hanger 10. The distance between the fire damper 9 and the end of the left wall 1 or the right wall 2 is no less than 200 mm. The other end of the fire damper 9 is sealed and connected to the air duct 15.

[0024] The shock-absorbing hanger 10 includes a lower rod 100 connected to the top of the fire damper 9 via a nut, a shock-absorbing hook 101 mounted on the top of the lower rod 100 via a nut, an upper rod 102 adjustably fixedly mounted on the top of the shock-absorbing hook 101 via a nut, and a hook 103 adjustably fixedly mounted on the top of the upper rod 102 via a nut. The top of the hook 103 is fixedly connected to the bottom of the floor slab 11. Specifically, a pre-embedded connector is pre-embedded in the bottom of the floor slab 11. The hook 103 is fixedly connected to the pre-embedded connector via bolts or welding. The hook 103 is a channel steel. The shock-absorbing hook 101 uses a mature product in the market.

[0025] A ring of embedded parts 12 is pre-installed on the outside of the right wall 2, circumferentially around the wall penetration. The embedded parts 12 have an L-shaped cross-section and are made of 40mm*40mm*4mm angle steel. A first baffle 13 is fixed to the outside of the embedded parts 12, its circumferential dimensions matching those of the embedded parts 12. One end of the non-combustible insulation layer 7 abuts against the first baffle 13. A sealing gasket is installed between the embedded parts 12 and the first baffle 13 to seal the connection between them.

[0026] A second baffle 14 is provided on the inner side of the left wall 1. One side of the second baffle 14 is flush with the inner side of the left wall 1, and the circumferential dimensions of the second baffle 14 match the dimensions of the through-wall hole. One end of the non-combustible insulation layer 7 abuts against the second baffle 14. The thickness of the second baffle 14 and the first baffle 13 is 2 mm.

[0027] The above embodiments are merely some descriptions of the concept and implementation of the present invention, and are not intended to limit the present invention. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A duct-through-extension-joint node, comprising a left wall, a right wall, and a duct section passing through the left and right walls, a deformation joint being provided between the left and right walls, and corresponding through-wall holes being provided on the left and right walls, characterized in that: An outer waterproof layer is provided on the surface of the wall penetration hole; an inner waterproof layer is provided on the outer surface of the air duct section, and a non-combustible thermal insulation layer is provided between the outer waterproof layer and the inner waterproof layer; a hose joint is sealed and fixedly provided at one end of the air duct section, and a fire damper is respectively provided at the other end of the air duct section and one end of the hose joint, and the fire damper is hoisted to the bottom of the floor slab through a shock-absorbing hanger.

2. The duct expansion joint node according to claim 1, characterized in that: The hose connector is made of non-combustible material.

3. The air duct expansion joint node according to claim 1 or 2, characterized in that: The shock-absorbing hanger includes a lower hanger connected to the top of the fire damper, a shock-absorbing hook installed on the top of the lower hanger, an upper hanger installed on the top of the shock-absorbing hook and a hanging piece installed on the top of the upper hanger, and the top of the hanging piece is fixedly connected to the bottom of the floor slab.

4. The duct expansion joint node according to claim 1, characterized in that: Embedded parts are pre-embedded on the outer side of the right wall and circumferentially around the wall-penetrating hole.

5. The air duct expansion joint node according to claim 4, characterized in that: The cross section of the embedded part is L-shaped.

6. The air duct expansion joint node according to claim 4 or 5, characterized in that: A first baffle is provided on the outer side of the embedded component, wherein the circumferential dimension of the first baffle is adapted to the circumferential dimension of the embedded component; one end of the non-combustible thermal insulation layer abuts against the first baffle.

7. The air duct expansion joint node according to claim 1, characterized in that: A second baffle is provided on the inner side of the left wall, wherein the circumferential dimension of the second baffle is adapted to the dimension of the through-wall hole; one end of the non-combustible thermal insulation layer abuts against the second baffle.

8. The air duct expansion joint node according to claim 1, characterized in that: The wall thickness of the air duct section is 2 mm.

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