Pressure adjusting device in outer wall structural layer and building outer wall

Abstract

The utility model discloses a pressure adjusting device in an outer wall structural layer. The pressure adjusting device comprises an exhaust pump, an exhaust control valve, a first exhaust pipe and a second exhaust pipe. The exhaust control valve is provided with a normally-open port, a normally-closed port and a public port, and the public port is communicated with the normally-open port and the normally-closed port. One end of the first exhaust pipe is communicated with an air inlet of the exhaust pump, and the other end is communicated with the normally-closed port; one end of the second exhaust pipe communicates with the public port, and the other end is an exhaust outlet; when the exhaust pump is started, the normally-open port is in a closed state, and the normally-closed port is in an open state. The device can be installed in an outer wall structural layer, the air pressure in the outer wall structural layer can be adjusted, the air pressure is maintained within a proper range, and the situations of component deformation, cracking, strength reduction, emergency damage and the like caused by too high air pressure are avoided. On the basis, the utility model further discloses a building outer wall which is provided with the device, the internal pressure and humidity of the building outer wall are convenient to adjust, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of building exterior walls, in particular to an exterior wall structural layer internal pressure regulating device and a building exterior wall. Background Art

[0002] The exterior wall structural layer is an important concept in the design of building exterior walls. It is usually composed of multiple layers and components, mainly including the base layer, insulation layer, waterproof layer, exterior finishing layer, auxiliary components, etc. Among them, the base layer, as the foundation of the exterior wall, is usually made of concrete or masonry, which can provide structural stability and support. The insulation layer is located on the base layer and is usually made of materials with good thermal insulation properties. The waterproof layer can protect the building from rain erosion and penetration. The exterior finishing layer is the decorative layer of the building's exterior, which not only provides a beautiful appearance, but also reflects the style and characteristics of the building.

[0003] Maintaining the exterior wall structure plays a vital role in the long-term stability and service life of the building. Affected by the indoor and outdoor environment, many exterior wall structures will inevitably have various problems after years of use.

[0004] In terms of temperature, temperature changes will produce thermal expansion or contraction in the exterior wall materials, resulting in temperature stress. If the exterior wall construction is not designed properly, this stress may cause cracks or structural damage.

[0005] In terms of humidity, the difference in humidity between indoors and outdoors will cause water vapor to diffuse through the exterior wall structure layer and condense inside the exterior wall structure layer, resulting in excessive humidity inside the exterior wall structure layer. Excessive humidity will not only cause condensation and mildew, affecting the health of residents, but will also accelerate the aging of the insulation layer, resulting in a decrease in the bonding strength of the insulation layer, and accelerate the natural shrinkage process of the exterior wall material, resulting in cracking.

[0006] In addition, under the influence of temperature and humidity, if the temperature inside the external wall structure layer is too high, causing the air to expand due to heat, or if the internal water content is too high and evaporates to form a large amount of water vapor, the internal pressure of the external wall structure layer will increase, forming a pressure difference with the external atmospheric pressure. This will not only affect the overall waterproof and thermal insulation performance, but also cause fatigue and aging of the external wall materials, causing them to deform, crack, reduce strength, and cause emergency damage. Utility Model Content

[0007] The utility model aims to provide a pressure regulating device in an exterior wall structural layer and an exterior wall of a building, so as to regulate the pressure inside the exterior wall structural layer.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] A pressure regulating device in an exterior wall structural layer, comprising an exhaust pump, an exhaust control valve, a first exhaust pipe and a second exhaust pipe; the exhaust control valve has a normally open port, a normally closed port and a common port, and the common port is communicated with the normally open port and the normally closed port, respectively; one end of the first exhaust pipe is connected to the air inlet of the exhaust pump, and the other end is connected to the normally closed port; one end of the second exhaust pipe is connected to the common port, and the other end is an exhaust outlet; when the exhaust pump is turned on, the normally open port is in a closed state, and the normally closed port is in an open state.

[0010] Furthermore, the exhaust control valve is a miniature two-position three-way valve, and the exhaust pump is a miniature air pump.

[0011] Furthermore, it also includes an installation limiter, which is fixedly arranged on the outer side of the second exhaust pipe and is located close to the exhaust outlet.

[0012] Furthermore, a backing adhesive is provided on a side of the installation limiter facing the second exhaust pipe.

[0013] Furthermore, the installation stopper is annular in shape as a whole and is sleeved on the outer side of the second exhaust pipe.

[0014] A building exterior wall comprises a base layer, an exterior finishing layer and the above-mentioned pressure regulating device in the exterior wall structural layer, wherein the pressure regulating device in the exterior wall structural layer is located between the base layer and the exterior finishing layer, and the exhaust outlet is communicated with the external environment.

[0015] Furthermore, the outer facing layer includes a plurality of decorative panels that are assembled together, and the air outlet of the exhaust pipe is located at the joint gap of the decorative panels.

[0016] Furthermore, the decorative panel is a dry-hanging decorative panel or an adhesive-anchored integrated panel.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model provides a pressure regulating device inside the outer wall structural layer, which can be installed in the outer wall structural layer. When turned on, it can adjust the internal air pressure of the outer wall structural layer to maintain the internal air pressure of the outer wall structural layer within a more suitable range, thereby avoiding deformation, cracking, strength reduction, emergency damage and the like of components caused by excessive air pressure, and facilitating the maintenance of the outer wall structural layer and extending the service life of the outer wall structural layer.

[0019] 2. Exhaust through this device can not only reduce the internal air pressure of the exterior wall structure layer, but also take away the moisture inside the exterior wall structure layer, reduce its internal humidity, and thus reduce the adverse effects of excessive humidity.

[0020] 3. The utility model provides a building exterior wall, which is provided with the above-mentioned pressure regulating device inside the exterior wall structural layer, and its internal pressure and humidity can be adjusted conveniently and maintained easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the pressure regulating device in the external wall structural layer of the utility model.

[0022] Figure 2 It is a schematic diagram of the exterior wall structure of the utility model.

[0023] Figure 3 for Figure 2 A partial enlarged schematic diagram of the structure of part A.

[0024] Figure 4 This is a schematic diagram of fixing the exhaust outlet of the utility model.

[0025] Explanation of main component symbols: 1. Exhaust pump; 11. Air inlet; 12. Air outlet; 2. Exhaust control valve; 21. Normally open port; 22. Normally closed port; 23. Common port; 3. First exhaust pipe; 4. Second exhaust pipe; 41. Exhaust outlet; 5. Installation limiter; 51. Adhesive backing; 6. Base layer; 7. External finishing layer; 71. Decorative panel; 72. Sealant seam. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0027] like Figure 1-4 As shown, the utility model discloses a pressure regulating device in an exterior wall structural layer, comprising an exhaust pump 1, an exhaust control valve 2, a first exhaust pipe 3 and a second exhaust pipe 4; the exhaust control valve 2 has a normally open port 21, a normally closed port 22 and a common port 23, and the common port 23 is communicated with the normally open port 21 and the normally closed port 22 respectively; one end of the first exhaust pipe 3 is connected to the air inlet 11 of the exhaust pump 1, and the other end is connected to the normally closed port 22; one end of the second exhaust pipe 4 is connected to the common port 23, and the other end is an exhaust outlet 41; when the exhaust pump 1 is turned on, the normally open port 21 is in a closed state, and the normally closed port 22 is in an open state.

[0028] The device can be installed in the outer wall structural layer. After installation, the exhaust outlet 41 on the second exhaust pipe 4 is connected to the external environment of the outer wall structural layer, that is, the outdoors. Under normal circumstances, the normally open port 21, the common port 23 and the second exhaust pipe 4 on the exhaust control valve 2 can make the internal and external environments of the outer wall structural layer communicate with each other. When the internal pressure of the outer wall structural layer is relatively large, the exhaust control valve 2 can be opened, the normally open port 21 can be switched to a closed state, the normally closed port 22 can be switched to an open state, and the exhaust pump 1 can be turned on for rapid exhaust. Under the action of the exhaust pump 1, the internal airflow of the outer wall structural layer can be discharged in sequence through the air inlet 11, the air outlet 12, the first exhaust pipe 3, the normally closed port 22, the common port 23 and the second exhaust pipe 4 of the exhaust pump 1, so as to reduce the internal pressure of the outer wall structural layer and promote the balance of the internal and external pressures of the outer wall structural layer. Similarly, when the internal pressure of the outer wall structural layer is relatively small, the exhaust pump 1 can also be turned on to reversely operate to adjust the internal pressure environment of the outer wall structural layer.

[0029] Therefore, this device can adjust the internal air pressure of the exterior wall structural layer and maintain it within a more appropriate range, thereby avoiding deformation, cracking, strength reduction, emergency damage, etc. of components caused by excessive pressure difference between the inside and outside of the exterior wall structural layer.

[0030] During the exhaust process of the exhaust pump 1, the airflow generated can play a role in ventilation and heat dissipation, and can also carry the moisture inside the external wall structure layer and discharge it, while evenly distributing the humidity inside the external wall structure layer, accelerating the evaporation of moisture inside the external wall structure layer, and playing a role in reducing the relative humidity inside the external wall structure layer. Therefore, in addition to regulating air pressure, the device also has the function of regulating temperature and humidity.

[0031] Preferably, the exhaust control valve 2 adopts a miniature two-position three-way valve, and the exhaust pump 1 adopts a miniature air pump for easy installation. In addition, the device is also provided with an installation limiter 5, which is fixedly arranged on the outside of the second exhaust pipe 4, and the installation limiter 5 is located close to the exhaust outlet 41. When the exhaust outlet 41 is fixed, it can abut against the back of the decorative panel to play a limiting role. The installation limiter 5 is annular as a whole and is sleeved on the outside of the second exhaust pipe 4, which can prevent the second exhaust pipe 4 from deflecting and shaking along its own radial direction. The installation limiter 5 is provided with a backing adhesive 51 on the side facing the second exhaust pipe 4, and the decorative panel can be bonded by the backing adhesive 51 to play a preliminary fixing role.

[0032] On this basis, the utility model also discloses a building exterior wall, including a base layer 6, an exterior finishing layer 7 and an exterior wall structural layer internal pressure regulating device, the exterior wall structural layer internal pressure regulating device is installed between the base layer 6 and the exterior finishing layer 7. Among them, the exterior finishing layer 7 includes a plurality of mutually assembled decorative panels 71, and the joint gaps between each decorative panel 71 are filled with sealant to form a sealant seam 72. The decorative panel 71 can be a dry hanging decorative panel or an adhesive-anchored integrated panel. The exhaust outlet 41 in the device is exposed to the exterior finishing layer 7, and is thus communicated with the external environment.

[0033] Preferably, the exhaust outlet 41 is fixedly arranged at the joint gap of the decorative panel 71, that is, located in the sealant seam 72. During installation, the exhaust outlet 41 can be initially fixed at the joint gap of the decorative panel 71 by installing the adhesive 51 on the stopper 5. After the initial fixation, the sealant can be used to fix the decorative panel 71 for a second time. After the fixation is completed, the excess part of the second exhaust pipe 4 located outdoors can be cut off to flatten the outer decorative surface layer 7. It can be seen that the fixing operation of the exhaust outlet 41 is convenient and does not need to damage the dry-hanging exterior decorative panel.

[0034] In summary, the pressure regulating device in the outer wall structural layer provided by the utility model has excellent air pressure, temperature and humidity regulating functions, and can maintain the pressure, temperature and humidity in the outer wall structural layer within a suitable range, so that the various properties of the outer wall structural layer are maintained in a better state. The provided building outer wall is easy to maintain and has a long service life.

[0035] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes in form and details of the present invention are within the scope of protection of the present invention without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A pressure regulating device in an exterior wall structural layer, characterized in that: It includes an exhaust pump, an exhaust control valve, a first exhaust pipe and a second exhaust pipe; the exhaust control valve has a normally open port, a normally closed port and a common port, and the common port is communicated with the normally open port and the normally closed port respectively; one end of the first exhaust pipe is connected to the air inlet of the exhaust pump, and the other end is connected to the normally closed port; one end of the second exhaust pipe is connected to the common port, and the other end is an exhaust outlet; When the exhaust pump is turned on, the normally open port is in a closed state, and the normally closed port is in an open state.

2. The pressure regulating device in the outer wall structural layer according to claim 1, characterized in that: The exhaust control valve is a miniature two-position three-way valve, and the exhaust pump is a miniature air pump.

3. The pressure regulating device in the outer wall structural layer according to claim 1, characterized in that: It also includes an installation limiter, which is fixedly arranged on the outside of the second exhaust pipe and is located close to the exhaust outlet.

4. The pressure regulating device in the outer wall structural layer according to claim 3, characterized in that: A backing adhesive is provided on a side of the installation stopper facing the second exhaust pipe.

5. The pressure regulating device in the outer wall structural layer according to claim 3, characterized in that: The installation stopper is annular in shape as a whole and is sleeved on the outer side of the second exhaust pipe.

6. A building exterior wall, characterized in that: It comprises a base layer, an outer finishing layer and an internal pressure regulating device for an outer wall structural layer as claimed in any one of claims 1 to 5, wherein the internal pressure regulating device for an outer wall structural layer is located between the base layer and the outer finishing layer, and the exhaust outlet is communicated with the external environment.

7. A building exterior wall as claimed in claim 6, characterized in that: The outer facing layer includes a plurality of decorative panels which are assembled together, and the air outlet of the exhaust pipe is located at the joint gap of the decorative panels.

8. A building exterior wall as claimed in claim 7, characterized in that: The decorative panel is a dry-hanging decorative panel or an adhesive-anchored integrated panel.

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