CN209446235U - Adopt hydraulic portable assembly type structure side fascia detection device - Google Patents

Abstract

The utility model discloses a portable assembly-type building exterior wall panel detection device using water pressure, which comprises a pressure-holding cylinder cover, a metal hose, an electronic pressure gauge, an electronic flowmeter, a valve, a water pump, and a water tank; the pressure-holding sleeve The cylinder is connected to the electronic pressure gauge through the metal hose, and the electronic pressure gauge is used to measure the pressure of the water body; the electronic pressure gauge is connected to the electronic flowmeter, and the electronic flowmeter is used to measure The flow rate of the water body; the electronic flowmeter is connected to the valve, and the valve is used to control the flow and pressure of the water body; the valve is connected to the water pump through the metal hose, and the water pump is used to provide The pressure of the water body in the pressure maintaining cylinder cover; the water pump is placed in the water tank. The utility model has the advantages of lightness and flexibility, simple structure, convenient use, energy saving and environmental protection, etc., and can be used for testing the airtightness and watertightness of joints of exterior wall panels of assembled buildings.

Description

A portable prefabricated building exterior wall panel detection device using hydraulic pressure

technical field

The utility model relates to the airtightness and watertight performance detection of joints of assembly-type building exterior wall panels, in particular to a portable assembly-type building exterior wall panel detection device and detection method using hydraulic pressure.

Background technique

With the rapid development of urbanization in our country, compared with the traditional construction mode of on-site construction work, a new prefabricated construction mode of housing integration has ushered in a new opportunity for development. This type of construction method has been gradually promoted by developed countries such as Europe and the United States since the late 1940s. In my country, this method was mainly used in industrial buildings, such as bridges and factory buildings. In recent years, it has been gradually applied to civil buildings.

The so-called prefabricated building means that some or all of the components of the building are produced in the component prefabrication factory, and then transported to the construction site through corresponding transportation methods, and the components are assembled by reliable installation methods and installation machines to become functional buildings. way of building construction. In order to speed up the development of prefabricated buildings in China, local governments have vigorously introduced various policies to support the development of prefabricated buildings, support the development of industrialized building demonstration pilots and promote the construction of green affordable housing, and some government departments have adopted prefabricated buildings. Residents adopt the policy of partial government subsidies, and vigorously promote the pilot project of prefabricated buildings, so that prefabricated buildings can penetrate into the life and production of grassroots people.

The exterior wall structure of the prefabricated building is an important part of the prefabricated building, but since the exterior wall structure of the prefabricated building is assembled on-site by the exterior wall panels of the prefabricated building, there will be a large amount of space left between the exterior wall panels of the prefabricated building. Under the interaction of rainwater, gaps and forces, it is inevitable that rainwater will not seep into the joints of external wall panels. Water and other gases and liquid media that leak into the joints will not only affect the durability of the structure , Safety poses a threat, and it will also affect the owner's daily life such as living and working. However, since the development of prefabricated buildings in my country is still in its infancy, prefabricated buildings are not yet perfect in terms of technology, systems, regulations, etc., which has brought great impact on the waterproof design, construction management, inspection and acceptance of exterior wall panels of prefabricated buildings. A huge challenge has come. How to reasonably and effectively test the airtightness and watertightness of the joints of the exterior wall panels of prefabricated buildings is a key and difficult point in the development of prefabricated buildings.

The watertight performance test of the existing building envelope usually adopts the method of combining on-site water test and naked eye observation. If the water spraying test is carried out on the joints of the exterior wall panels of the prefabricated building at the construction site, it will inevitably cause the construction site to be dirty and cause a waste of water resources. Moreover, the water spray test also has the disadvantages of uncontrollable water pressure or flow, and inconvenient operation. It has limitations to observe the construction quality of the sealant and whether there is leakage in the joints of the external wall panels with the naked eye, and the reliability of the detection conclusion is low. . At the same time, the airtight performance test of the existing building envelope structure is usually based on the size of the test piece, using a wood board or iron sheet to customize a pressure box, and then through multiple components such as a pressure supply device, a computer, a differential pressure gauge, a pressure gauge, and a wind pressure control device. Carry out airtight performance test on it. This method not only has the disadvantages of inconvenient operation, high price, and uncontrollable airtightness, but also can only be used for testing the airtightness performance of outdoor joints of exterior wall panels. Performance testing will inevitably lead to an increase in testing costs, and this method has its limitations.

The detection device and detection method can not only effectively detect the airtightness and watertightness of the prefabricated building exterior wall panels, but also the detection conclusion is obtained through multiple rounds of different detection methods, the reliability is greatly improved, and it has its superiority. sex. The detection device and detection method can effectively improve the service performance and service life of the prefabricated building exterior wall panels, ensure the normal progress of people's life and production, and have good technical and economic benefits.

Utility model content

The purpose of the utility model is to provide a portable assembly type building exterior wall board detection device and detection method using water pressure. The detection device and detection method can not only improve the construction quality of the joints of the exterior wall panels of prefabricated buildings under construction, but also can be used in the airtight and watertight performance testing of the joints of the exterior wall panels of prefabricated buildings. Compared with the existing The airtightness and watertightness performance detection device and detection method greatly improve the reliability of the detection conclusion and have good technical and economic benefits.

The technical scheme adopted by the utility model is: a portable assembly-type building exterior wall panel detection device using water pressure, including a pressure-holding cylinder cover, a metal hose, an electronic pressure gauge, an electronic flowmeter, a valve, a water pump, and a water tank;

The pressure retaining cylinder cover is placed on the outdoor seam of the exterior wall panels, and the joints are sealed with structural glue;

The pressure-holding sleeve is connected with an electronic pressure gauge for measuring the pressure of the water body through a metal hose;

The electronic pressure gauge is connected with the electronic flowmeter for measuring the flow of the water body through a quick connector;

The electronic flowmeter is connected with a valve for controlling the flow and pressure of the water body through a quick connector;

The valve is connected with a water pump for providing the pressure of the water body in the pressure-maintaining cylinder cover through a metal hose;

The water pump is placed in the water tank.

Preferably, in order to accurately reflect changes in the pressure and flow of the water body in the device, the measurement accuracy of the electronic flowmeter and electronic pressure gauge must meet the detection requirements, and the measurement accuracy must meet level 1.0.

The metal hose has good flexibility, stretchability and high pressure resistance. There are quick connectors at both ends of the hose, which can be quickly connected with the pressure maintaining cylinder cover, electronic pressure gauge, valve and water pump. It has good watertight performance and is quick and easy to install. The valve is flexible and reliable, and can accurately control the pressure and flow of the water body in the device.

A method for detecting the airtightness and watertightness of the joints of the prefabricated building exterior wall panels using the above-mentioned detection device, comprising the following steps:

Step 1: Connect the valve to the water pump through a metal hose;

The second step: connect the electronic flowmeter and the valve through the quick connector;

The third step: connect the electronic flowmeter and the electronic pressure gauge through the quick connector;

Step 4: Connect the electronic pressure gauge with the pressure-preserving cylinder cover through a metal hose;

Step 5: Place the pressure-holding sleeve on the outdoor seam of the exterior wall panel, and seal the joint with structural glue;

Step 6: After the sealant is completely dry, turn on the water pump, adjust the valve, and control the pressure of the water body according to the sealing width, sealing depth, product quality and other factors of the sealant to avoid opening and cracking of the sealant due to excessive water pressure Phenomenon;

Step 7: By observing the changes in the pressure value of the electronic pressure gauge and the flow value of the electronic flowmeter, preliminarily evaluate whether the sealant has good airtight and watertight performance. When the pressure value and flow value are stable at a certain value without any change, it can be preliminarily evaluated that the airtight and watertight performance of the sealant here is good; when the pressure value drops suddenly or remains low and the flow value changes significantly, it can be According to preliminary evaluation, the airtightness and watertightness of the sealant here are poor, the sealant has openings, cracks or poor sealing, and leakage occurs at the joints of the external wall panels.

The eighth step: use the far-infrared thermal imager and the microwave moisture meter to detect the leakage of the indoor joints of the external wall panels, and then provide data support for the preliminary evaluation of the seventh step.

Step 9: Finally, remove the pressure-preserving cylinder cover from the seam, and check the sealant state again by visual observation. Combined with the evaluation of the seventh and eighth steps, the seam of the prefabricated building exterior wall panel can be obtained The final conclusion of airtightness and watertightness.

Beneficial effects: the utility model is a portable assembly-type building exterior wall board detection device using water pressure, which has the advantages of simple structure, convenient use, accuracy and reliability. The detection device and detection method can fill the gaps in my country's field of airtightness and watertightness testing of the outer wall panels of prefabricated buildings, and play a certain role in promoting the development of prefabricated buildings in my country. The compilation of relevant normative standards provides methodological guidance. Compared with the existing airtightness and watertightness performance detection methods, this detection method can preliminarily evaluate the airtightness and watertightness performance of prefabricated building exterior wall panels by comparing and analyzing the pressure value of the electronic pressure gauge and the flow value of the electronic flowmeter. Then, the far-infrared thermal imager and the microwave moisture meter are used to detect the leakage of the joints of the external wall panels, so as to provide data support for the preliminary evaluation, which can effectively improve the accuracy of the air-tight and water-tight performance of the external wall panels of the prefabricated building.

Description of drawings

Fig. 1 is a diagram of the use status of a portable assembly-type building exterior wall panel detection device using hydraulic pressure of the present invention.

Detailed ways

The specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.

As shown in Figure 1, a portable assembly-type building exterior wall panel detection device using water pressure includes a pressure-holding cylinder cover 1, a metal hose 2, an electronic pressure gauge 3, an electronic flowmeter 4, a valve 5, and a water pump 6. The water tank 7; the pressure maintaining cylinder cover 1 is connected to the electronic pressure gauge 3 through the metal hose 2, and the electronic pressure gauge 3 is used to measure the pressure of the water body; the electronic pressure gauge 3 is connected to the electronic pressure gauge 3 The flow meter 4 is connected, and the electronic flow meter 4 is used to measure the water flow; the electronic flow meter 4 is connected to the valve 5, and the valve 5 is used to control the water flow and pressure; the valve 5 The metal hose 2 is connected to the water pump 6 , and the water pump 6 is used to provide the pressure of the water body in the pressure maintaining cylinder cover; the water pump 6 is placed in the water tank 7 . The measurement accuracy of the electronic flowmeter 4 and the electronic pressure gauge 3 must meet the detection requirements, and the measurement accuracy both meet the level 1.0.

A method for detecting the airtightness and watertightness of the joints of the prefabricated building exterior wall panels using the above-mentioned detection device, comprising the following steps:

The first step: connect the valve 5 with the water pump 6 through the metal hose 2;

The second step: connect the electronic flowmeter 4 and the valve 5 through a quick connector;

The third step: connect the electronic flowmeter 4 and the electronic pressure gauge 3 through a quick connector;

The fourth step: connect the electronic pressure gauge 3 and the pressure maintaining cylinder cover 1 through the metal hose 2;

Step 5: Place the pressure retaining cylinder cover 1 on the outdoor seam of the exterior wall panel, and seal the joint with structural glue;

Step 6: After the sealant is completely dry, turn on the water pump 6, adjust the valve 5, and control the pressure of the water body according to the sealing width, sealing depth, product quality and other factors of the sealant to avoid the opening of the sealant due to excessive water pressure , cracking phenomenon;

The seventh step: By observing the changes of the pressure value of the electronic pressure gauge 3 and the flow value of the electronic flowmeter 4, preliminarily evaluate whether the sealant has good airtight and watertight performance. When the pressure value and flow value are stable at a certain value without any change, it can be preliminarily evaluated that the airtight and watertight performance of the sealant here is good; when the pressure value drops suddenly or remains low and the flow value changes significantly, it can be According to preliminary evaluation, the airtightness and watertightness of the sealant here are poor, the sealant has openings, cracks or poor sealing, and leakage occurs at the joints of the external wall panels.

The eighth step: use the far-infrared thermal imager and the microwave moisture meter to detect the leakage of the indoor joints of the external wall panels, and then provide data support for the preliminary evaluation of the seventh step.

Step 9: Finally, remove the pressure-preserving cylinder cover 1 from the seam, and check the sealant state again by visual observation. Combined with the evaluation of the seventh and eighth steps, it can be concluded that the assembled building exterior wall panels The final conclusion on airtightness and watertightness of joints.

The embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the described embodiments. For those of ordinary skill in the art, within the scope of the principles and technical ideas of the present utility model, various changes, modifications, replacements and deformations to these embodiments still fall within the protection scope of the present utility model.

Claims (2)

1. a kind of portable assembled architecture outer wall board checking device using hydraulic pressure, it is characterised in that: including pressure maintaining barrel cover, gold Belong to hose, electronic pressure gage, electronic flowmeter, valve, water pump, water tank；

The pressure maintaining barrel cover is placed in outside Side fascia room on piece, and junction is sealed using structure glue；

The pressure maintaining sleeve is connected by metal hose with the electronic pressure gage for measuring water body pressure size；

The electronic pressure gage is connected by quick coupling with the electronic flowmeter for measuring water flow size；

The electronic flowmeter is connected by quick coupling with the valve for controlling water flow and pressure size；

The valve is connected by metal hose with the water pump for providing water body pressure in pressure maintaining barrel cover；

The water pump is placed in the water tank.

2. a kind of portable assembled architecture outer wall board checking device using hydraulic pressure according to claim 1, feature Be: the measuring accuracy of the electronic flowmeter and electronic pressure gage is all satisfied 1.0 grades.