CN205208866U - Damping sound insulation disconnected tuber pipe jib - Google Patents

Abstract

The utility model discloses a vibration-damping and sound-insulating disconnected air duct suspender, aiming to provide a vibration-damping and sound-insulating disconnect that can effectively prevent the vibration of the air duct from propagating to the floor and eliminate indoor noise caused by the vibration of the air duct Air duct hanger. It includes an upper rod body, a lower rod body and a disconnected vibration-damping connection structure arranged between the upper rod body and the lower rod body. The disconnected vibration-damping connection structure includes a connecting cylinder and a vibration-damping spring arranged in the connecting cylinder. The lower end of the upper rod body is connected to the upper end of the connecting cylinder, and the lower end surface of the connecting cylinder is provided with a through-rod through hole communicating with the inner cavity of the connecting cylinder, and the upper end of the lower rod body extends through the through-rod through-hole. Into the connecting cylinder, the outer surface of the lower rod body is located in the connecting cylinder with a limit protrusion, the damping spring is sleeved on the lower rod body, and the damping spring is located between the limit protrusion and the inner bottom surface of the connecting cylinder. between.

Description

A vibration-absorbing and sound-insulating disconnected air duct suspender

technical field

The utility model relates to a suspender for indoor decoration, in particular to a vibration-damping and sound-insulating disconnected air duct suspender for fixing an air duct.

Background technique

Suspenders are widely used in suspended ceilings for interior decoration. Its upper end is fixed on the building structure of the roof, and its lower end is connected to the keel of the suspended ceiling to play the role of fixing the keel. The structure of the boom includes a rod body, and connecting structures are arranged at two ends of the rod body.

In order to meet the ventilation requirements of the central air conditioner, it is often necessary to set some air ducts in the building, and these air ducts are usually placed between the roof and the suspended ceiling; at present, these air ducts are fixed by suspenders. The upper end of the suspender is fixedly connected to the roof, and the lower end is fixedly connected to the air duct, and the connection between the end of the suspender and the roof and the air duct is "hard connection". During the ventilation process, the work of the fan at the air inlet or outlet will cause the air duct to vibrate, and sometimes even the work of the central air conditioner may cause the vibration of the air duct; All connections are "hard connections". This "hard connection" structure can easily transmit the vibration of the air duct to the floor, causing noise in the room.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art and provide a vibration-damping and sound-insulating disconnected air duct suspender, which can effectively prevent the vibration of the air duct from propagating to the floor, and eliminate the vibration caused by the vibration of the air duct. Room noise.

The technical scheme of the utility model is:

A vibration-damping and sound-insulating disconnected air duct suspender, comprising an upper rod body, a lower rod body, and a disconnected vibration-damping connection structure arranged between the upper rod body and the lower rod body, and the disconnected vibration-damping connection structure includes a connecting cylinder And the damping spring arranged in the connecting cylinder, the lower end of the upper rod body is connected with the upper end of the connecting cylinder, the lower end surface of the connecting cylinder is provided with a rod through hole communicating with the inner cavity of the connecting cylinder, and the lower rod body The upper end of the upper rod passes through the through hole of the rod and extends into the connecting cylinder. The outer surface of the lower rod body is provided with a limit protrusion in the connecting cylinder. The damping spring is sleeved on the lower rod body, and the vibration damping The spring is located between the limit projection and the inner bottom surface of the connecting cylinder.

The disconnected vibration-damping connection structure of the suspender in this scheme can not only effectively attenuate the vibration of the air duct and reduce the noise of the air duct itself when it vibrates; moreover, the upper rod body and the lower rod body are elastically connected, so that the vibration generated by the air duct is on the upper , The connection of the lower rod body is interrupted, so as to prevent the vibration of the air duct from spreading to the floor and eliminate the indoor noise caused by the vibration of the air duct.

Preferably, the lower end surface of the connecting cylinder is provided with a bottom notch communicating with the inner cavity of the connecting cylinder, and the bottom notch communicates with the through hole of the rod; the outer surface of the connecting cylinder is provided with a connecting cylinder. A mounting port connected to the inner cavity, the mounting port includes a notch of a limiter corresponding to the limiter and a notch of a rod body extending up and down, the upper end of the notch of the rod extends upwards and is connected with the notch of the limiter The notches are connected, and the lower end of the notch of the rod body extends downwards and communicates with the notch on the bottom surface. The notch on the bottom surface and the installation port structure in the structure of this scheme can facilitate the installation and disassembly of the lower rod body and the connecting cylinder.

Preferably, the notch of the limiting protrusion is close to the upper end of the connecting cylinder. Since the notch of the limit bump is close to the upper end of the connecting tube, when the air duct is hoisted on the boom, it is beneficial to make the limit bump below the notch of the limit bump, thereby preventing the lower rod body from being disengaged from the connecting tube .

Preferably, the inner diameter of the rod passing hole is larger than the width of the notch on the bottom surface, and the width of the notch on the bottom surface is larger than the diameter of the lower rod body. Since the inner diameter of the rod through hole is larger than the width of the notch on the bottom surface, and the width of the notch on the bottom surface is larger than the diameter of the lower rod body, this can effectively avoid interference between the lower rod body and the through rod through hole during the vibration of the air duct, resulting in additional noise .

Preferably, the limiting protrusion is an annular limiting protrusion, the horizontal width of the notch of the limiting protrusion is greater than the outer diameter of the limiting protrusion, and the vertical height of the notch of the limiting protrusion is greater than that of the limiting protrusion. The axial height of the bump. The notch on the bottom surface and the installation port structure in the structure of this scheme can facilitate the installation and disassembly of the lower rod body and the connecting cylinder.

Preferably, the width of the notch of the rod body is greater than the diameter of the lower rod body.

Preferably, the upper rod body is coaxial with the connecting cylinder.

Preferably, an upper connection structure is provided at the upper end of the upper rod body, and a lower connection structure is provided at the lower end of the lower rod body.

Preferably, the upper connecting structure is a connecting rod or connecting plate perpendicular to the upper rod body, and the lower connecting structure is a connecting rod or connecting plate perpendicular to the lower rod body.

The beneficial effects of the utility model are: not only can effectively attenuate the vibration of the air duct, but also reduce the noise of the air duct itself when it vibrates; It can prevent the vibration of the air duct from spreading to the floor and eliminate the indoor noise caused by the vibration of the air duct.

Description of drawings

Fig. 1 is a schematic structural view of the vibration-damping and sound-insulating disconnected air duct suspender of the present invention.

Fig. 2 is a side view of the connecting cylinder of the present invention.

FIG. 3 is a bottom view of FIG. 2 .

Fig. 4 is a schematic diagram of the structure of the vibration-damping and sound-insulating disconnected air duct suspender of the present invention during actual installation.

In the figure: the upper connection structure 1, the upper rod body 2, the lower rod body 3, the lower connection structure 4, the limit bump 5, the connecting cylinder 6, the damping spring 7, the rod through hole 8, the limit bump notch 9, The rod body notch 10 extending up and down, the notch 11 on the bottom surface, and the air duct 12.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in FIG. 1 , a vibration-damping and sound-insulating disconnected air duct boom includes an upper rod body 2 , a lower rod body 3 and a disconnected vibration-damping connection structure arranged between the upper rod body and the lower rod body. The upper end of the upper rod body is provided with an upper connection structure 1 . The lower end of the lower rod body is provided with a lower connection structure 4 . The upper connecting structure is a connecting rod or connecting plate perpendicular to the upper rod body. The lower connecting structure is a connecting rod or connecting plate perpendicular to the lower rod body.

The disconnected vibration-damping connection structure includes a connecting cylinder 6 with closed upper and lower ends and a vibration-damping spring 7 arranged in the connecting cylinder. The connecting barrel is cylindrical. The lower end of the upper rod body is connected with the upper end of the connecting cylinder, and the upper rod body is coaxial with the connecting cylinder. The lower end surface of the connecting cylinder is provided with a through-rod through hole 8 communicating with the inner cavity of the connecting cylinder. The rod through hole is located in the middle of the lower end face of the connecting cylinder. The upper end of the lower rod body extends into the connecting cylinder through the through hole through the rod. A limit projection 5 is provided on the outer surface of the lower rod body and inside the connecting cylinder. The limit projection is located at the upper end of the lower rod body. The bump is an annular limit bump. The damping spring is sheathed on the lower rod body, and the damping spring is located between the limit protrusion and the inner bottom surface of the connecting cylinder.

As shown in Figures 1, 2 and 3, the lower end surface of the connecting cylinder is provided with a bottom notch 11 communicating with the inner cavity of the connecting cylinder, and the bottom notch communicates with the through hole of the rod. An installation port communicating with the inner cavity of the connecting cylinder is provided on the outer surface of the connecting cylinder. The installation opening includes a notch 9 corresponding to the limit protrusion and a notch 10 extending up and down on the rod body. The limit protrusion notch is close to the upper end of the connecting cylinder. The upper end of the notch of the rod body extends upwards and communicates with the notch of the limiting protrusion, and the lower end of the notch of the rod body extends downwards and communicates with the notch of the bottom surface.

The width of the notch on the bottom surface is greater than the diameter of the lower rod body. The width of the notch of the rod body is greater than the diameter of the lower rod body. The horizontal width of the notch of the limiting protrusion is greater than the outer diameter of the limiting protrusion. The vertical height of the notch of the limiting protrusion is greater than the axial height of the limiting protrusion.

The assembly of the vibration-damping and sound-insulating disconnected air duct suspender of the present embodiment is as follows:

Put the damping spring into the connecting cylinder together with the limit bump from the notch of the limit bump after compression, and at the same time move the upper part of the lower rod body from the notch of the rod body and the notch on the bottom surface into the connecting cylinder, and let the lower rod body pass through Go through the through hole of the rod; then move down the lower rod body so that the limit protrusion is located below the notch of the limit protrusion, that is, the connection and installation of the upper rod body and the lower rod body is completed, and the operation is convenient and quick.

When the vibration-damping and sound-insulating disconnected air duct boom of this embodiment is used for hoisting air ducts:

As shown in Figure 4, the upper rod body is fixed on the building structure of the roof through the upper connection structure, and the lower rod body is fixed with the air duct 12 through the lower connection structure. The disconnected vibration-damping connection structure between the upper rod body and the lower rod body makes The vibration generated by the air duct is interrupted at the connection between the upper and lower rods to prevent the vibration of the air duct from propagating to the floor.

Claims (9)

1. A vibration-damping and sound-insulating disconnected air duct suspender, characterized in that it comprises an upper rod body, a lower rod body and a disconnected vibration-damping connection structure arranged between the upper rod body and the lower rod body, the disconnected type damping The vibration connection structure includes a connecting cylinder and a damping spring arranged in the connecting cylinder. The lower end of the upper rod body is connected with the upper end of the connecting cylinder, and the lower end surface of the connecting cylinder is provided with a rod-through channel that communicates with the inner cavity of the connecting cylinder. hole, the upper end of the lower rod extends into the connecting cylinder through the through-hole through the rod, the outer surface of the lower rod and in the connecting cylinder is provided with a limit protrusion, and the damping spring is sleeved on the lower on the rod body, and the damping spring is located between the limit projection and the inner bottom surface of the connecting cylinder. 2. A vibration-damping and sound-insulating disconnected air duct suspender according to claim 1, wherein the lower end surface of the connecting cylinder is provided with a bottom notch communicating with the inner cavity of the connecting cylinder, the The notch on the bottom surface communicates with the through hole of the rod; the outer surface of the connecting cylinder is provided with a mounting port communicating with the inner cavity of the connecting cylinder, and the mounting port includes a limit bump groove corresponding to the limit bump The upper end of the rod body notch extends upwards and communicates with the notch of the limit bump, and the lower end of the rod body notch extends downwards and communicates with the notch on the bottom surface. 3 . The vibration-damping and sound-insulating disconnected air duct suspender according to claim 2 , wherein the notch of the limiting protrusion is close to the upper end of the connecting cylinder. 4 . 4. A vibration-damping and sound-insulating disconnected air duct suspender according to claim 2 or 3, wherein the inner diameter of the through-hole through the rod is greater than the width of the bottom notch, and the width of the bottom notch is greater than the diameter of the lower shaft. 5. A vibration-damping and sound-insulating disconnected air duct suspender according to claim 2 or 3, characterized in that the stopper is an annular stopper, and the horizontal width of the notch of the stopper greater than and the outer diameter of the limiting protrusion, and the vertical height of the notch of the limiting protrusion is greater than the axial height of the limiting protrusion. 6. The vibration-damping and sound-insulating disconnected air duct suspender according to claim 2 or 3, wherein the width of the notch of the rod body is greater than the diameter of the lower rod body. 7. A vibration-damping and sound-insulating disconnected air duct suspender according to claim 1, 2 or 3, wherein the upper rod body is coaxial with the connecting cylinder. 8. A vibration-damping and sound-insulating disconnected air duct suspender according to claim 1, 2 or 3, wherein the upper end of the upper rod body is provided with an upper connection structure, and the lower end of the lower rod body is provided with The lower connection structure. 9. A vibration-damping and sound-insulating disconnected air duct suspender according to claim 8, wherein the upper connecting structure is a connecting rod or connecting plate perpendicular to the upper rod body, and the lower connecting structure is A connecting rod or connecting plate perpendicular to the lower body.