CN217422477U - A new air duct inner fixed connection structure - Google Patents

Abstract

The utility model discloses a fresh air pipe internal fixing connection structure, which comprises a fresh air pipe, a female thread connecting piece and a male thread connecting piece, wherein the male thread connecting piece comprises a male thread connecting piece main body, one end part of the male thread connecting piece main body is provided with a flange, the other end of the male thread connecting piece main body is provided with a first connecting cap, the first connecting cap is internally provided with a hollow structure, the female thread connecting piece comprises a female thread connecting piece main body, one end of the female thread connecting piece main body is provided with a second connecting cap matched with the first connecting cap, the other end of the female thread connecting piece main body is provided with a hexagon end part, the second connecting cap is internally provided with a step, an outside pipe fixing piece is arranged on the step, one end part of the fresh air pipe is arranged in the outside pipe fixing piece, the female thread connecting piece and the male thread connecting piece are connected with the second connecting cap through the first connecting cap, a sealing ring is arranged on the matching surface of the outside pipe fixing piece and the male thread connecting piece, the sealing ring is fixed through a fixing mechanism, the connection failure problems of pipe fitting falling off and the like caused by the interference of most external factors are avoided, has the characteristics of reasonable structural design and high safety.

Description

A new air duct inner fixed connection structure

technical field

The utility model relates to the technical field of fresh air duct installation, in particular to an inner fixed connection structure of a fresh air duct.

Background technique

At present, the new air duct and the pipe fittings are connected by clamps, and the existing connection methods are all external, and there is a high risk of being damaged by various external factors, resulting in connection failure, new air ducts falling off and other problems.

Utility model content

In view of the problems existing in the prior art, the purpose of the present invention is to provide an internal fixed connection structure for a fresh air duct, which avoids connection failures such as pipe fittings falling off caused by interference from most external factors. The internal fixed connection method of the present invention cannot directly External disassembly, greatly improved safety and reliability.

The technical scheme of the present utility model is as follows:

An internal fixed connection structure for a fresh air duct, comprising a fresh air duct, a female threaded connector and a male threaded connector, the male threaded connector includes a male threaded connector main body, and one end of the male threaded connector main body is provided with a flange , the other end of the connecting cap is provided with a connecting cap, the inside of the connecting cap is a hollow structure, the female threaded connector includes a female threaded connector main body, and one end of the female threaded connector main body is provided with a matching connection cap. The other end of the connecting cap is provided with a hexagonal end, the connecting cap two is provided with a step inside, and the step is provided with an outer pipe fixing member, and one end of the fresh air pipe is set outside the pipe for fixing Inside the fitting, the female threaded connection piece and the male threaded connection piece are connected to the connection cap 2 through the first connecting cap, wherein the mating surface of the outer pipe fixing piece and the male threaded connecting piece is provided with a sealing ring, and the sealing ring is fixed by the fixing mechanism , which constitutes a fixed connection structure in the fresh air duct.

Further, the sealing ring includes a ring body, and the inner wall of the ring is provided with an annular projection 1 and an annular projection 2 along the circumferential direction, and the annular projection 1 and the annular projection 2 are formed between the annular projection 1 and the annular projection 2. a groove, a port of the ring body extends outward.

Further, the fixing mechanism includes a tightening steel ring and a clamping position fixing block, the tightening steel ring is fixed in the clamping position groove, and the fastening steel ring is fixed in the sealing ring through the clamping position fixing block.

Further, the position where the inner wall of the sealing ring is matched with the position fixing block is provided with a position fixing block installation groove matching with the position fixing block.

Further, it includes an outer-pipe sealing gasket, the outer-pipe sealing gasket is arranged inside the outer-pipe fixing piece, and the fresh air duct is connected to the outer-pipe fixing piece through the outer-pipe sealing gasket.

Further, the inner structure of the outer pipe sealing gasket is matched with the outer surface of the fresh air duct, and the outer surface of the outer pipe sealing gasket is matched with the inner wall of the outer pipe fixing member.

Further, the combination of two outer duct gaskets surrounds the fresh air duct.

Further, the first connecting cap is provided with a male thread on the outside, the inner wall of the second connecting cap is provided with a female thread matching the male thread, and the female thread connector and the male thread connector are connected with the male thread by the female thread.

Compared with the prior art, the beneficial effects of the present utility model:

1) Using the technical solution of the present utility model, one end of the fresh air duct is set in the outer fixing piece of the pipe, and the female threaded connecting piece and the male threaded connecting piece are connected with the connecting cap 2 through the first connecting cap, wherein the outer fixing piece and the connecting cap 2 are connected. The mating surface of the male threaded connector is provided with a sealing ring, which is fixed by the fixing mechanism, forming a fixed connection structure in the fresh air duct, avoiding the connection failure problems such as the falling off of the pipe fittings caused by the interference of most external factors;

2) In the utility model, the fresh air duct can be made of a hose or a hard pipe, which makes the design of the pipeline more flexible; the hose can be used where the fresh air hose is suitable, and the rigid pipe can be used where the fresh air hard pipe is suitable. The connection method greatly improves the rationality of the pipeline, which can optimize the pipeline design of the fresh air system and improve the performance efficiency of the system;

3) The utility model has the characteristics of reasonable structure design and high safety.

Description of drawings

1 is a schematic diagram of the overall cross-sectional structure of the present utility model;

Fig. 2 is the structural representation of the sealing ring in the utility model;

Fig. 3 is the structural representation of fastening steel ring in the utility model;

Figure 4 is a schematic structural diagram of a male threaded connector in the utility model;

Figure 5 is a schematic structural diagram of a female threaded connector in the utility model;

FIG. 6 is a schematic structural diagram of a fixed block in the utility model.

In the figure: 1. Fresh air duct; 2. Female thread connector; 201, connecting cap 2; 2011, step; 2012, female thread; 202, hexagonal end; ; 401, ring body; 4011, annular protrusion 1; 4012, annular protrusion 2; 4013, groove; 601, flange; 602, connecting cap one; 6021, male thread; 7, fastening steel ring; 8, card position fixing block.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings, but the scope of protection of the present utility model is not limited to the above-mentioned scope.

As shown in Figures 1-6, an inner fixed connection structure of a fresh air duct includes a fresh air duct 1, a female threaded connector 2 and a male threaded connector 6. The male threaded connector 6 includes a male threaded connector body and a male threaded connector. One end of the main body is provided with a flange 601, which is used to cooperate with another male threaded connector 6. The flange 601 is provided with 6 holes for bolt fastening, and the other end is provided with a connecting cap 602. Inside 602 is a hollow structure. The female threaded connector 2 includes a female threaded connector body. One end of the female threaded connector body is provided with a second connecting cap 201 that matches the first connecting cap 602, and the other end is provided with a hexagonal end 202. The second connecting cap 201 A step 2011 is opened inside, the outer pipe fixing member 3 is arranged on the step 2011, one end of the fresh air duct 1 is set in the outer pipe fixing member 3, the female thread connector 2 and the male thread connector 6 are connected with the connecting cap 1 602. The second connecting cap 201 is connected, the first connecting cap 602 is provided with a male thread 6021, the inner wall of the second connecting cap 201 is provided with a female thread 2012 that matches the male thread 6021, and the female thread connector 2 and the male thread connector 6 pass through the female thread 2012 Connect with male thread 6021.

A sealing ring 4 is provided on the mating surface of the outer pipe fixing member 3 and the male thread connecting member 6, and the sealing ring 4 is fixed by a fixing mechanism to form a fixed connection structure in the fresh air pipe.

The utility model is a fixed connection structure in the fresh air duct. The fixing mechanism includes a fastening steel ring 7 and a clamping fixing block 8. The fastening steel ring 7 is fixed in the groove 4013, and the fastening steel ring 7 passes through the clamping fixing block 8. It is fixed in the sealing ring 4. The inner wall of the sealing ring 4 and the clamping position fixing block 8 are fitted with a clamping position fixing block installation groove 4014 that matches the clamping position fixing block 8. In this example, the clamping position fixing block 8 is a square block. , compared with the existing connection method of the sealing ring and the buckle, the fastening steel ring 7 is more firmly fixed and supported, and the fresh air duct 1 is not easy to loosen.

According to a new air duct inner fixed connection structure of the present invention, the sealing ring 4 includes a ring body 401. The inner wall of the ring body 401 is provided with an annular protrusion 1 4011 and an annular protrusion 2 4012 along the circumferential direction. The annular protrusion 1 4011 A groove 4013 is formed between the second annular protrusion 4012, and a port of the ring body 401 extends outwards to prevent air leakage on the mating surface of the outer tube fixing member 3 and the male threaded connecting member 6.

An inner fixed connection structure of a fresh air duct of the present invention comprises an outer pipe sealing gasket 5, the outer pipe sealing gasket 5 is arranged in the outer pipe fixing member 3, and the fresh air pipe 1 is connected to the outer pipe fixing member 3 through the outer pipe sealing gasket 5 . The inner structure of the outer tube gasket 5 matches the outer surface of the fresh air duct 1 , and the outer surface of the outer tube gasket 5 matches the inner wall of the outer tube fixing member 3 . The combination of two outer duct gaskets 5 surrounds the fresh air duct 1 to prevent air leakage.

Connecting the new air duct 1 and the pipe fittings, using a hose has the advantages of short construction period, low requirement on floor height, and easy installation and transformation in the later stage. The disadvantage is that the air supply volume is large, but the wind resistance is also large, and the ventilation effect will be reduced. Harder tubes are not as strong.

The use of hard pipes has the advantages of being strong and durable, long-distance air supply, and inconspicuous air volume attenuation. The disadvantages are long construction, high cost, and inconvenience in later reconstruction.

The inner fixed connection structure of the utility model can be connected with a hard pipe or a hose, so that the pipeline design is more flexible. The hose can be used where the fresh air hose is suitable, and the hard pipe can be used where the fresh air hard pipe is suitable. This connection method greatly improves the rationality of the pipeline, optimizes the pipeline design of the fresh air system, and improves the performance and efficiency of the system.

Specifically, first put the sealing ring 4 in the pipe, put the tightening steel ring 7 into the inner groove of the sealing ring 4, and use a hydraulic press to stretch the tightening steel ring 7 to a distance where it can be put into the fixing block 8, Put in the fixing block 8, and the hydraulic press is unloaded; wrap the two outer pipe gaskets 5 around the fresh air pipe 1, put them into the outer pipe fixing part 3, and use the female thread connector 2 and the male thread connector 6 to cooperate.

Claims (8)

1. An internal fixed connection structure for a fresh air duct, characterized in that it comprises a fresh air duct (1), a female threaded connector (2) and a male threaded connector (6), and the male threaded connector (6) includes a male threaded connection The main body of the male threaded connector is provided with a flange (601) at one end and a connecting cap (602) at the other end. The connector (2) includes a female threaded connector body, one end of the female threaded connector body is provided with a second connecting cap (201) matching the first connecting cap (602), and the other end is provided with a hexagonal end portion (202), the second connecting cap (201) is provided with a step (2011), the step (2011) is provided with a pipe outer fixing member (3), and one end of the fresh air pipe (1) is set at Inside the outer pipe fixing member (3), the female threaded connecting member (2) and the male threaded connecting member (6) are connected to the second connecting cap (201) through the first connecting cap (602), wherein the outer pipe fixing member (3) A sealing ring (4) is provided on the mating surface of the male threaded connecting piece (6), and the sealing ring (4) is fixed by a fixing mechanism to form a fixed connection structure in the fresh air duct. 2 . The inner fixed connection structure of a fresh air duct according to claim 1 , wherein the sealing ring ( 4 ) comprises a ring body ( 401 ), and the inner wall of the ring body ( 401 ) is provided with an annular ring along the circumferential direction. 3 . Protrusion one (4011) and annular protrusion two (4012), a groove (4013) is formed between the annular protrusion one (4011) and the annular protrusion two (4012), the ring body (401) ) one port extends outward. 3. An inner fixing connection structure for a fresh air duct according to claim 1, characterized in that the fixing mechanism comprises a tightening steel ring (7) and a clamping fixing block (8), and the tightening steel ring (7) It is fixed in the clamping groove (4013), and the fastening steel ring (7) is fixed in the sealing ring (4) through the clamping fixing block (8). 4. An inner fixed connection structure of a fresh air duct according to claim 3, characterized in that the inner wall of the sealing ring (4) is provided with a position corresponding to the position fixing block (8) where the inner wall of the sealing ring (4) cooperates with the position fixing block (8). Matching card holder mounting slot (4014). 5. An inner fixed connection structure for a fresh air duct according to claim 1, characterized in that it comprises an outer pipe sealing gasket (5), and the outer pipe sealing gasket (5) is arranged inside the outer pipe fixing member (3), The fresh air duct (1) is connected with the outer pipe fixing member (3) through the outer pipe sealing gasket (5). 6. An inner fixed connection structure for a fresh air duct according to claim 5, characterized in that the inner structure of the outer pipe gasket (5) is matched with the outer surface of the fresh air duct (1), and the outer pipe outer gasket The outer surface of (5) matches the inner wall of the outer tube fixing member (3). 7 . The inner fixed connection structure of a fresh air duct according to claim 6 , characterized in that two outer duct gaskets ( 5 ) are combined to surround the fresh air duct ( 1 ). 8 . 8. An inner fixed connection structure for a fresh air duct according to claim 1, characterized in that the first connecting cap (602) is provided with a male thread (6021) outside, and the inner wall of the second connecting cap (201) is provided with a male thread (6021) on the inner wall. The thread (6021) is matched with the female thread (2012), and the female thread connector (2) and the male thread connector (6) are connected with the male thread (6021) through the female thread (2012).

Images