Fresh air system pipeline sealing connection structure

Abstract

The utility model relates to the technical field of connecting structures, in particular to a fresh air system pipeline sealing connecting structure. In order to solve the problems that energy loss can be caused due to poor sealing performance of a pipeline joint, and meanwhile, the load of a fresh air system can be increased if no heat insulation measure is taken at the pipeline joint, the following technical scheme is provided: the fresh air system comprises a wall body and two groups of connecting pipes arranged in the wall body in a penetrating manner; l-shaped exchange pipes are arranged at one ends of the two groups of connecting pipes, and the two groups of exchange pipes face opposite directions; the heat insulation mechanism is used for preventing heat loss at the joint of the connecting pipe and the exchange pipe, and the heat insulation mechanism is arranged on the outer ring of the joint of the connecting pipe and the exchange pipe in a sleeving manner; and the positioning assembly is used for positioning the position of the heat insulation mechanism. The air tightness of the pipeline connecting position is good, the pipeline connecting position is prevented from becoming an energy loss part, meanwhile, energy conduction is reduced, the energy efficiency performance of the fresh air system is effectively improved, and energy waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connection structures, and in particular to a fresh air system pipeline sealing connection structure. Background Art

[0002] Passive house is a building design and construction concept that aims to minimize energy consumption and provide a comfortable indoor environment without relying on active heating, cooling or ventilation systems. It has been widely used all over the world. Since passive houses focus on the airtightness of buildings, the sealed connection of the fresh air system must ensure airtightness. If the sealing of the pipe joints is not good, air leakage will occur, resulting in energy loss. Through the leak, the fresh air provided by the fresh air system may be lost to the outside, and the indoor air may not be completely discharged. At the same time, if no insulation measures are taken at the pipe joints, a thermal bridge will be formed, resulting in heat conduction between indoor and outdoor. This means that in winter, indoor heat will be lost to the outside through the pipe joints; in summer, the external heat will be conducted to the indoor through the joints, increasing the load of the fresh air system. In view of this, the utility model proposes a fresh air system pipe sealing connection structure. Utility Model Content

[0003] The purpose of the utility model is to propose a sealing connection structure for fresh air system pipes in order to solve the problem that the sealing of pipe connections in the background technology is poor, which will cause energy loss, and if no insulation measures are taken at the pipe connections, the load of the fresh air system will increase.

[0004] The technical solution of the utility model: a fresh air system pipeline sealing connection structure, comprising:

[0005] A wall and two sets of connecting pipes penetrating through the wall;

[0006] One end of the two groups of connecting tubes is provided with an L-shaped exchange tube, and the two groups of exchange tubes face opposite directions;

[0007] A heat insulation mechanism for preventing heat loss at the connection between the connecting pipe and the exchange pipe, wherein the heat insulation mechanism is sleeved on the outer ring at the connection between the connecting pipe and the exchange pipe;

[0008] A positioning component for positioning the heat insulation mechanism, wherein the positioning component is sleeved and installed on the outer ring of the connecting pipe and the exchange pipe;

[0009] A filter mechanism for filtering air is arranged at one end of the exchange tube away from the connecting tube.

[0010] Optionally, a limiting ring is fixedly connected to the inner wall of the connecting pipe, and a connecting tube is also installed at one end of the exchange tube close to the connecting pipe, and the connecting tube is threadedly connected to the connecting pipe.

[0011] Optionally, a rubber sealing ring is provided between the limiting ring and the connecting tube.

[0012] Optionally, the heat insulation mechanism includes a first heat insulation plate arranged on the outer circle of the connecting tube and the exchange tube, one side of the first heat insulation plate is rotatably connected to the second heat insulation plate, and multiple groups of first fixing plates are installed on the outer sides of the first heat insulation plate and the second heat insulation plate, and bolts are commonly installed on two groups of opposite first fixing plates.

[0013] Optionally, the positioning assembly includes a first positioning ring sleeved on the outer ring of the connecting tube, one end of the first positioning ring is rotatably connected to the second positioning ring, first connecting plates are installed on the outer sides of the first positioning ring and the second positioning ring, and a first long screw is commonly installed on the two groups of the first connecting plates.

[0014] Optionally, the positioning assembly also includes a third positioning ring sleeved on the outer ring of the exchange tube, one end of the third positioning ring is rotatably connected to a fourth positioning ring, second connecting plates are installed on the outer sides of the third positioning ring and the fourth positioning ring, and a second long screw is commonly installed on the two groups of the second connecting plates.

[0015] Optionally, the filtering mechanism comprises a pressing plate rotatably connected to one end of the exchange tube away from the connecting tube, a plurality of ventilation holes are provided on the pressing plate, and filter cotton is further provided between the pressing plate and the end of the exchange tube.

[0016] Optionally, one end of the exchange tube and a side of the pressure plate away from the exchange tube are both fixedly connected with a second fixing plate.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model can increase the air tightness after the connecting pipe and the exchange pipe are connected by setting the rubber sealing ring, ensuring that there will be no gas leakage at the connection to ensure the efficiency of the fresh air system. At the same time, the two groups of exchange pipes are far away from each other, which is convenient for ventilation.

[0019] Furthermore, by setting up the heat insulation mechanism, the heat conduction can be reduced, ensuring that the connection between the connecting pipe and the exchange pipe will not become a part of energy loss, thereby reducing the load of the fresh air system;

[0020] In summary, the utility model has good air tightness at the pipe connection, which avoids the pipe connection from becoming a part of energy loss, while reducing energy conduction, effectively improving the energy efficiency performance of the fresh air system and reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a fresh air system duct sealing connection structure is given;

[0022] Figure 2 Schematic diagram of the cross-sectional structure of the connecting pipe;

[0023] Figure 3 It is a schematic diagram of the disassembled structure of the thermal insulation mechanism.

[0024] Reference numerals:

[0025] 1. Wall;

[0026] 2. Connecting pipe; 21. Limiting ring; 23. Rubber sealing ring

[0027] 3. Exchange tube; 31. Connecting tube;

[0028] 4. Heat insulation mechanism; 41. First heat insulation board; 42. Second heat insulation board; 43. First fixing board; 44. Bolts;

[0029] 5. Positioning assembly; 521. first positioning ring; 522. second positioning ring; 523. first connecting plate; 524. first long screw; 531. third positioning ring; 532. fourth positioning ring; 533. second connecting plate; 534. second long screw;

[0030] 6. Filter mechanism; 61. Pressing plate; 62. Ventilation hole; 63. Filter cotton; 64. Second fixing plate. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 and Figure 2 As shown, a fresh air system pipeline sealing connection structure proposed by the utility model comprises a wall 1 and two groups of connecting pipes 2 penetrating the wall 1, wherein one group of the two connecting pipes 2 is for air intake and the other group is for air discharge. An L-shaped exchange tube 3 is arranged at one end of each of the two connecting pipes 2, and the two groups of exchange tubes 3 face opposite directions, so that the exhausted air is difficult to be sucked in again, thereby improving the air quality of the fresh air system. The inner walls of the connecting pipe 2 and the exchange tube 3 are coated with a heat insulation coating to prevent heat exchange and improve the efficiency of the fresh air system. A limiting ring 21 is fixedly connected to the inner wall of the connecting pipe 2, and the limiting ring 21 is used to limit the length of the threaded connection between the connecting tube 31 and the connecting pipe 2 to prevent damage to the thread after tightening. A connecting tube 31 is also installed at one end of the exchange tube 3 close to the connecting pipe 2, and the connecting tube 31 is threadedly connected to the connecting pipe 2, so that the connecting pipe 2 and the exchange tube 3 can be connected. A rubber sealing ring 23 is arranged between the limiting ring 21 and the connecting tube 31 to increase the air tightness and ensure that there is no gas leakage at the connection to ensure the efficiency of the fresh air system.

[0037] For further information, see Figure 2 and Figure 3The above-mentioned connection structure includes a heat insulation mechanism 4 for preventing heat loss at the connection between the connecting pipe 2 and the exchange pipe 3. The heat insulation mechanism 4 is sleeved on the outer ring of the connection between the connecting pipe 2 and the exchange pipe 3. The heat insulation mechanism 4 includes a first heat insulation plate 41 arranged on the outer ring of the connecting pipe 2 and the exchange pipe 3. One side of the first heat insulation plate 41 is rotatably connected to the second heat insulation plate 42. The inner sides of the first heat insulation plate 41 and the second heat insulation plate 42 are coated with a heat insulation coating, which prevents the pipeline connection from becoming a part of energy loss and reduces energy conduction, effectively improving the energy efficiency performance of the fresh air system and reducing energy waste. Multiple groups of first fixing plates 43 are installed on the outer sides of the first heat insulation plate 41 and the second heat insulation plate 42. The first fixing plate 43 moves synchronously with the first heat insulation plate 41 and the second heat insulation plate 42 for fixing. Bolts 44 are installed on two sets of opposite first fixing plates 43. The first insulation plate 41 and the second insulation plate 42 are connected into a cylinder through the bolts 44 and the first fixing plates 43 in cooperation with nuts, and are sleeved on the outer ring of the connection between the connecting pipe 2 and the exchange pipe 3 to prevent heat exchange.

[0038] Furthermore, the connection structure further includes a positioning assembly 5 for positioning the position of the heat insulation mechanism 4, and the positioning assembly 5 is sleeved and installed on the outer rings of the connecting pipe 2 and the exchange pipe 3. The positioning assembly 5 includes a first positioning ring 521 sleeved on the outer ring of the connecting pipe 2, one end of the first positioning ring 521 is rotatably connected to the second positioning ring 522, and the outer sides of the first positioning ring 521 and the second positioning ring 522 are both installed with a first connecting plate 523, and the two groups of first connecting plates 523 are jointly installed with a first long screw 524, and the first connecting plate 523 fixes the first positioning ring 521 and the second positioning ring 522 to the outer ring of the connecting pipe 2 through the first long screw 524 and the nut. The positioning assembly 5 also includes a third positioning ring 531 sleeved on the outer ring of the exchange tube 3, one end of the third positioning ring 531 is rotatably connected to the fourth positioning ring 532, and second connecting plates 533 are installed on the outer sides of the third positioning ring 531 and the fourth positioning ring 532, and second long screws 534 are installed on the two groups of second connecting plates 533. The second connecting plate 533 uses the second long screw 534 to cooperate with the nut to fix the third positioning ring 531 and the fourth positioning ring 532 to the outer ring of the insulation mechanism 4, so that the first positioning ring 521, the second positioning ring 522, the third positioning ring 531, and the fourth positioning ring 532 can position the insulation mechanism 4 at the connection between the connecting tube 2 and the exchange tube 3 to prevent the position movement of the insulation mechanism 4 from affecting its insulation effect.

[0039] Finally, see Figure 1 and Figure 3The connection structure includes a filter mechanism 6 for filtering air, and the filter mechanism 6 is arranged at the end of the exchange tube 3 away from the connecting tube 2. The filter mechanism 6 includes a pressing plate 61 that is rotatably connected to the end of the exchange tube 3 away from the connecting tube 2, and the pressing plate 61 is used to press the filter cotton 63 to fix the position of the filter cotton 63. A plurality of ventilation holes 62 are provided on the pressing plate 61, so that air can enter the exchange tube 3 through the ventilation holes 62. A filter cotton 63 is also arranged between the pressing plate 61 and the end of the exchange tube 3, and the filter cotton 63 is used to filter the air when it passes through, so as to ensure the air quality in the fresh air system. A second fixing plate 64 is fixedly connected to one end of the exchange tube 3 and the side of the pressing plate 61 away from the exchange tube 3, and the second fixing plate 64 is used to fix the ventilation hole 62 at one end of the exchange tube 3 after passing through the fastener, and make the ventilation hole 62 press the filter cotton 63.

[0040] In this embodiment, firstly, the exchange tube 3 is rotated so that the connecting tube 31 is threadedly connected with the connecting tube 2, and the exchange tube 3 is fixed to one end of the connecting tube 2. At the same time, the connecting tube 31 cooperates with the limiting ring 21 to squeeze the rubber sealing ring 23, so that the connection between the connecting tube 2 and the exchange tube 3 is airtight, ensuring that there is no gas leakage at the connection to ensure the efficiency of the fresh air system. At the same time, the two groups of exchange tubes 3 are far away from each other for easy ventilation. Then, the inner side of the first insulation board 41 is fitted with the connection between the connecting tube 2 and the exchange tube 3, and the second insulation board 42 is rotated so that the first fixing plate 43 installed on the second insulation board 42 is close to the first fixing plate 43 installed on the first insulation board 41, and the two groups of first fixing plates 43 at corresponding positions are fixed together by bolts 44. At this time, the cylindrical sleeve formed by the first insulation board 41 and the second insulation board 42 is set at the connection between the connecting tube 2 and the exchange tube 3. Due to the heat insulation coating on the inner side of the first heat insulation board 41 and the second heat insulation board 42, the heat dissipation can be effectively isolated, and the pipe connection is prevented from becoming a part of energy loss. At the same time, energy conduction is reduced, the energy efficiency performance of the fresh air system is effectively improved, and energy waste is reduced. Then, the first positioning ring 521 and the second positioning ring 522 are clamped on the outer ring of the connecting pipe 2 through the first connecting plate 523 and the first long screw 524, so that one side of the first positioning ring 521 and the second positioning ring 522 are in close contact with the heat insulation mechanism 4. Similarly, the third positioning ring 531 and the fourth positioning ring 532 are clamped on the outer ring of the exchange tube 3 through the second connecting plate 533 and the second long screw 534, so that one side of the third positioning ring 531 and the fourth positioning ring 532 are in close contact with the heat insulation mechanism 4, thereby achieving the purpose of fixing the position of the heat insulation mechanism 4 and preventing the displacement of the heat insulation mechanism 4 due to the vibration generated by the gas during operation. At the same time, when the air enters the exchange tube 3 through the ventilation holes 62 and the filter cotton 63, impurities in the air will be filtered out by the filter cotton 63, thereby greatly improving the air quality in the fresh air system.

[0041] The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A fresh air system duct sealing connection structure, characterized in that: include: A wall (1) and two groups of connecting pipes (2) penetrating through the wall (1); One end of each of the two groups of connecting tubes (2) is provided with an L-shaped exchange tube (3), and the two groups of exchange tubes (3) face in opposite directions; A heat insulation mechanism (4) for preventing heat loss at the connection between the connecting pipe (2) and the exchange pipe (3), wherein the heat insulation mechanism (4) is sleeved on the outer ring at the connection between the connecting pipe (2) and the exchange pipe (3); A positioning assembly (5) for positioning the heat insulation mechanism (4), wherein the positioning assembly (5) is sleeved and installed on the outer rings of the connecting pipe (2) and the exchange pipe (3); A filter mechanism (6) for filtering air, wherein the filter mechanism (6) is arranged at an end of the exchange tube (3) away from the connecting tube (2).

2. A fresh air system duct sealing connection structure according to claim 1, characterized in that: The inner wall of the connecting pipe (2) is fixedly connected to a limit ring (21), and one end of the exchange pipe (3) close to the connecting pipe (2) is also provided with a connecting tube (31), and the connecting tube (31) is threadedly connected to the connecting pipe (2).

3. A fresh air system duct sealing connection structure according to claim 2, characterized in that: A rubber sealing ring (23) is provided between the limiting ring (21) and the connecting tube (31).

4. A fresh air system duct sealing connection structure according to claim 1, characterized in that: The heat insulation mechanism (4) comprises a first heat insulation plate (41) arranged on the outer ring of the connecting tube (2) and the exchange tube (3); one side of the first heat insulation plate (41) is rotatably connected to a second heat insulation plate (42); a plurality of groups of first fixing plates (43) are installed on the outer sides of the first heat insulation plate (41) and the second heat insulation plate (42); bolts (44) are installed on two opposite groups of the first fixing plates (43) in common.

5. A fresh air system duct sealing connection structure according to claim 1, characterized in that: The positioning assembly (5) comprises a first positioning ring (521) sleeved on the outer ring of the connecting tube (2); one end of the first positioning ring (521) is rotatably connected to a second positioning ring (522); first connecting plates (523) are installed on the outer sides of the first positioning ring (521) and the second positioning ring (522); and a first long screw (524) is installed on the two groups of the first connecting plates (523).

6. A fresh air system duct sealing connection structure according to claim 5, characterized in that: The positioning assembly (5) further comprises a third positioning ring (531) sleeved on the outer ring of the exchange tube (3); one end of the third positioning ring (531) is rotatably connected to a fourth positioning ring (532); second connecting plates (533) are installed on the outer sides of the third positioning ring (531) and the fourth positioning ring (532); and second long screws (534) are installed on two groups of the second connecting plates (533).

7. A fresh air system duct sealing connection structure according to claim 1, characterized in that: The filtering mechanism (6) comprises a pressing plate (61) rotatably connected to one end of the exchange tube (3) away from the connecting tube (2), the pressing plate (61) being provided with a plurality of groups of ventilation holes (62), and a filter cotton (63) being arranged between the pressing plate (61) and the end of the exchange tube (3).

8. A fresh air system duct sealing connection structure according to claim 7, characterized in that: One end of the exchange tube (3) and a side of the pressure plate (61) away from the exchange tube (3) are both fixedly connected with a second fixing plate (64).

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