A sealing mechanism of an exhaust air purification device of a fresh air system

Abstract

This utility model relates to the technical field of fresh air exhaust systems, and provides a sealing mechanism for a fresh air system exhaust purification device, including an exhaust pipe; the exhaust pipe passes through a wall and has an external air outlet. The sealing mechanism of this utility model for a fresh air system exhaust purification device seals the exhaust pipe by using a sealing plate and a pressure plate. This sealing method does not affect the wall, provides high sealing performance, and facilitates maintenance. A spring-driven pressing mechanism between the connecting sleeve and the pressure plate prevents excessive pressure from damaging the wall and causing cracks. A pin can be inserted into the surface of the exhaust pipe after the connecting sleeve is installed, preventing loosening of the threads between the connecting sleeve and the exhaust pipe. A cover plate is rotatably installed on the outside of the air outlet. When the fresh air system is not exhausting, the cover plate covers the air outlet of the air outlet under gravity, thus preventing external debris from entering and causing blockage.

Description

Technical Field

[0001] This utility model belongs to the technical field of fresh air exhaust system, and in particular relates to a sealing mechanism of a fresh air system exhaust purification device. Background Technology

[0002] A fresh air system is an independent air handling system consisting of a supply air system and an exhaust air system. It is divided into two types: ducted fresh air system and ductless fresh air system. The ducted fresh air system consists of a fresh air unit and duct fittings. The fresh air unit purifies outdoor air and introduces it into the room. The exhaust air unit exhausts the air to the outside through the exhaust duct. One end of the exhaust duct is connected to the air conditioner, and the other end passes through the wall and is located outdoors.

[0003] Currently, sealing devices are typically used at the openings between exhaust ducts and walls to prevent air leaks or rainwater seepage. Traditional sealing methods usually involve applying sealant, but this can damage the wall surface. Over time, the sealant can crack, reducing its sealing performance, and removing it can damage the wall surface. Utility Model Content

[0004] This utility model provides a sealing mechanism for a fresh air system exhaust purification device, which aims to solve the problems that the sealing of the exhaust pipe will affect the wall and is prone to cracking, leading to air leakage and water seepage.

[0005] This utility model is implemented as follows: a sealing mechanism for a fresh air system exhaust purification device includes an exhaust pipe; the exhaust pipe passes through a wall and has an air outlet installed on its exterior; a sealing plate and a pressure plate are installed on the surface of the exhaust pipe; the sealing plate is fixed to the surface of the exhaust pipe and located on the outer side of the wall; the pressure plate is slidably sleeved on the surface of the exhaust pipe and located on the inner side of the wall; an annular groove is formed on the side of the sealing plate near the wall, and a sealing ring is embedded in the groove; the sealing ring is tightly fitted to the outer surface of the wall; a connecting sleeve is sleeved on the surface of the exhaust pipe; a thread is formed on the inner side of the connecting sleeve; a threaded groove is formed on the surface of the exhaust pipe that matches the thread on the surface of the connecting sleeve; a spring is sleeved on the surface of the exhaust pipe, and the spring is located between the connecting sleeve and the pressure plate.

[0006] Preferably, the surface of the connecting sleeve is provided with an insertion hole, and a pin is inserted into the insertion hole. The surface of the exhaust pipe is provided with a slot that matches the pin. The pin passes through the connecting sleeve and is inserted into the slot on the surface of the exhaust pipe.

[0007] Preferably, a fixing rod is installed on the top of the air outlet, a limiting sleeve is rotatably sleeved on the surface of the fixing rod, and a cover plate is installed on the lower side of the limiting sleeve, the cover plate being located at the exhaust port of the air outlet.

[0008] Preferably, a fixed cover is installed on the outside of the air outlet duct, and the cover plate is located inside the fixed cover.

[0009] Preferably, a sleeve is installed on the outside of the connecting sleeve, the pressure plate and the spring are both located inside the sleeve, and a protrusion is installed on the side of the sleeve.

[0010] Preferably, a gap is left between the sleeve and the surface of the wall.

[0011] Compared with the prior art, the embodiments of this application have the following main advantages:

[0012] This device seals the exhaust pipe by using a sealing plate and a pressure plate. This sealing method does not affect the wall and provides high sealing performance while facilitating maintenance. The spring-driven pressing between the connecting sleeve and the pressure plate prevents excessive pressure from damaging the wall and causing cracks. The pin can be inserted into the surface of the exhaust pipe after the connecting sleeve is installed, preventing the threads between the connecting sleeve and the exhaust pipe from loosening. The cover plate is rotated and installed on the outside of the air outlet. When the fresh air system is not exhausting, the cover plate covers the air outlet of the air outlet under the action of gravity, thereby preventing external debris from entering and causing blockage. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present invention;

[0014] Figure 2 This is a front view cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a side view of the sealing plate structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the cover plate structure of this utility model;

[0017] In the diagram: 1. Exhaust pipe; 2. Air outlet; 3. Sealing plate; 4. Pressure plate; 5. Sealing ring; 6. Connecting sleeve; 7. Spring; 8. Pin; 9. Fixing rod; 10. Limiting sleeve; 11. Cover plate; 12. Fixing cover; 13. Sleeve; 14. Protrusion. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model embodiment provides a sealing mechanism for a fresh air system exhaust purification device, such as... Figure 1-4 As shown, the device includes an exhaust pipe 1, which passes through a wall and has an external air outlet duct 2. A sealing plate 3 and a pressure plate 4 are installed on the surface of the exhaust pipe 1. The sealing plate 3 is fixed to the surface of the exhaust pipe 1 and located on the outer side of the wall. The pressure plate 4 is slidably sleeved on the surface of the exhaust pipe 1 and located on the inner side of the wall. An annular groove is formed on the side of the sealing plate 3 closest to the wall, and a sealing ring 5 is embedded in the groove. The sealing ring 5 fits tightly against the outer surface of the wall. A connecting sleeve 6 is fitted onto the surface of the exhaust pipe 1. The inner side of the connecting sleeve 6 has threads, and the surface of the exhaust pipe 1 has a threaded groove that matches the threads on the surface of the connecting sleeve 6. A spring 7 is fitted onto the surface of the exhaust pipe 1, located between the connecting sleeve 6 and the pressure plate 4. When in use, the exhaust pipe 1 can be extended from the wall... The outer part of the body is inserted inward, and then the pressure plate 4 and the connecting sleeve 6 are fitted onto the surface of the exhaust pipe 1. The connecting sleeve 6 is rotated and installed and fixed on the surface of the exhaust pipe 1 by means of threads. As the connecting sleeve 6 continues to rotate, the elastic force generated by the spring 7 makes the pressure plate 4 tightly press against the inner side of the wall, while the sealing plate 3 on the outer side of the wall will be tightly pressed against the outer surface of the wall, so that the sealing ring 5 is pressed against the surface of the wall, thereby achieving the sealing treatment between the exhaust pipe 1 and the wall. This device seals the exhaust pipe 1 by setting the sealing plate 3 and the pressure plate 4 to cooperate. This sealing method will not affect the wall. It has high sealing performance and is also easy to maintain. By using the spring 7 to push and press between the connecting sleeve 6 and the pressure plate 4, excessive pressure can be avoided to prevent damage to the wall and prevent the wall from cracking.

[0021] The surface of the connecting sleeve 6 is provided with an insertion hole, and a pin 8 is inserted into the insertion hole. The surface of the exhaust pipe 1 is provided with a slot that matches the pin 8. The pin 8 passes through the connecting sleeve 6 and is inserted into the slot on the surface of the exhaust pipe 1. By providing the pin 8, the pin 8 can be inserted into the surface of the exhaust pipe 1 after the connecting sleeve 6 is installed, so as to rotate and limit the connecting sleeve 6 and prevent the threads between the connecting sleeve 6 and the exhaust pipe 1 from loosening.

[0022] A fixing rod 9 is installed on the top of the air outlet duct 2. A limiting sleeve 10 is rotatably sleeved on the surface of the fixing rod 9. A cover plate 11 is installed on the lower side of the limiting sleeve 10. The cover plate 11 is located at the exhaust port of the air outlet duct 2. By setting the cover plate 11, the cover plate 11 is rotatably installed on the outside of the air outlet duct 2. When the fresh air system is not exhausting, the cover plate 11 covers the exhaust port of the air outlet duct 2 under the action of gravity, thereby preventing external debris from entering and causing blockage.

[0023] A fixed cover 12 is installed on the outside of the air outlet duct 2. The cover plate 11 is located inside the fixed cover 12. By setting the fixed cover 12, the fixed cover 12 can provide sun and rain protection for the cover plate 11 structure, and prevent it from being damaged by prolonged exposure to the sun.

[0024] A sleeve 13 is installed on the outside of the connecting sleeve 6. The pressure plate 4 and the spring 7 are both located inside the sleeve 13. A protrusion 14 is installed on the side of the sleeve 13. By setting the sleeve 13, which is located outside the connecting sleeve 6, the spring 7 and the pressure plate 4, the sealing mechanism can be protected and its aesthetics can be improved.

[0025] The sleeve 13 has a gap with the surface of the wall. This design can prevent the sleeve 13 from rubbing against the wall and damaging the wall surface when it rotates.

[0026] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0027] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0028] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of the utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the situation without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A sealing mechanism for a fresh air system exhaust purification device, characterized in that, Includes an exhaust pipe (1): the exhaust pipe (1) passes through the wall and is equipped with an air outlet (2) on the outside. The surface of the exhaust pipe (1) is equipped with a sealing plate (3) and a pressure plate (4). The sealing plate (3) is fixed to the surface of the exhaust pipe (1) and is located on the outside of the wall. The pressure plate (4) is slidably sleeved on the surface of the exhaust pipe (1) and is located on the inside of the wall. The sealing plate (3) has an annular groove on the side close to the wall, and a sealing ring (5) is embedded in the groove. The sealing ring (5) is tightly fitted to the outer surface of the wall. The surface of the exhaust pipe (1) is fitted with a connecting sleeve (6). The inner side of the connecting sleeve (6) is threaded. The surface of the exhaust pipe (1) is fitted with a threaded groove that matches the thread on the surface of the connecting sleeve (6). The surface of the exhaust pipe (1) is fitted with a spring (7). The spring (7) is located between the connecting sleeve (6) and the pressure plate (4).

2. The sealing mechanism of the fresh air system exhaust purification device as described in claim 1, characterized in that, The surface of the connecting sleeve (6) is provided with a socket and a pin (8) is inserted into the socket. The surface of the exhaust pipe (1) is provided with a slot that matches the pin (8). The pin (8) passes through the connecting sleeve (6) and is inserted into the slot on the surface of the exhaust pipe (1).

3. The sealing mechanism of the fresh air system exhaust purification device as described in claim 1, characterized in that, A fixing rod (9) is installed on the top of the air outlet (2). A limiting sleeve (10) is rotatably sleeved on the surface of the fixing rod (9). A cover plate (11) is installed on the lower side of the limiting sleeve (10). The cover plate (11) is located at the exhaust port of the air outlet (2).

4. The sealing mechanism of the fresh air system exhaust purification device as described in claim 3, characterized in that, The air outlet duct (2) is fitted with a fixed cover (12), and the cover plate (11) is located inside the fixed cover (12).

5. The sealing mechanism of the fresh air system exhaust purification device as described in claim 1, characterized in that, A sleeve (13) is installed on the outside of the connecting sleeve (6), and the pressure plate (4) and the spring (7) are both located inside the sleeve (13). A protrusion (14) is installed on the side of the sleeve (13).

6. The sealing mechanism of the fresh air system exhaust purification device as described in claim 5, characterized in that, The sleeve (13) has a gap with the surface of the wall.

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