A building component testing machine calibration device and calibration method

Abstract

The present invention relates to a calibration device and a calibration method for a building component testing machine. The calibration device for the building component testing machine comprises a calibration device frame used to cover the periphery of a corresponding air inlet when in use, a standard sensor is installed on the calibration device frame, and the calibration device frame comprises a frame bottom plate and surrounding frame side plates, the frame bottom plate and the surrounding frame side plates enclose a calibration space with an open front side, and the front end of the surrounding frame side plates is provided with at least one circle of sealing matching parts for sealing with the front side plates of a pressure box. The present invention solves the problem in the prior art that the horizontal plate and the vertical plate need to be moved, which makes the calibration process complicated, and the lax matching between the horizontal plate, the vertical plate and the pressure box affects the calibration accuracy.

Description

Technical Field

[0001] The invention relates to a verification device and a verification method for a building component testing machine in the verification field. Background Art

[0002] Building components such as doors, windows, and glass curtain walls require building component testing machines to test some of their mechanical properties. For example, for doors, windows, and glass curtain walls, they need to be tested for three mechanical properties: wind pressure resistance, air permeability, and rainwater permeability. A testing machine that can test the mechanical properties of building components is called a building component testing machine.

[0003] The structure of an existing building component testing machine is disclosed on page 3 of the National Standard of the People's Republic of China GB / T15227-2007. Figure 1~2 As shown: the building component testing machine includes a pressure box 3 with a front side plate 2 and surrounding side plates 1, a pressure generating device is installed on the front side plate of the pressure box, the pressure generating device includes an air supply device 4 and an air supply pipeline, the air supply device is a fan, an air inlet baffle 5 arranged opposite to the air outlet of the air supply pipeline is arranged in the pressure box, an air inlet arranged opposite to the air inlet baffle 5 is arranged on the pressure box, a pressure control device 10 and a pressure sensor are arranged on the air supply pipeline, a gas flow meter 9 or an anemometer is also arranged on the air supply pipeline, and the building component testing machine also includes a movable and adjustable horizontal plate 8 and vertical plate 7. During use, since the size of each door and window to be tested is different, it is necessary to move the horizontal plate up and down to adapt to the height of the doors and windows, and move the vertical plate left and right to adapt to the width of the doors and windows. The height of the vertical plate is adjustable, and the corresponding side plates of the horizontal plate, vertical plate and pressure box form an installation opening 6 that is consistent with the size of the door and window to be tested. The door and window to be tested is installed at the installation opening 6, and the air supply equipment blows air into the space surrounded by the horizontal plate, vertical plate and pressure box. The air inlet baffle is used to ensure the stability of the air pressure, so as to test the mechanical properties of the doors and windows.

[0004] At the same time, according to the verification regulations, the pressure sensors and gas flow meters in the door and window testing machine need to be regularly verified. In the past, the pressure sensors and gas flow meters in the building component testing machine were removed and taken to the verification laboratory. They were verified by standard pressure sensors and standard gas flow meters. The disassembly and assembly of pressure sensors and gas flow meters was troublesome. In order to solve this problem, we designed a simulation window in the later period. The standard pressure sensor and gas flow meter were installed on the simulation window. The positions of the horizontal and vertical plates were adjusted so that the horizontal and vertical plates and the side plates of the pressure box formed an opening that matched the size of the simulation window. Then the simulation window was installed at the opening. The corresponding sensor on the building component testing machine can be verified by comparing the reading of the standard sensor with the reading of the corresponding sensor on the building component testing machine. However, after using it for a period of time, it was found that the horizontal and vertical plates needed to be moved to form an opening of suitable size. This process would still increase the labor of the verification process and affect the verification efficiency. In addition, it is generally impossible to achieve complete sealing between the horizontal and vertical plates and the pressure box, which would affect the verification accuracy of the sensor in the building component testing machine. Summary of the invention

[0005] The purpose of the present invention is to provide a calibration device for a building component testing machine; to solve the problem in the prior art that the horizontal plate and the vertical plate need to be moved, which makes the calibration process complicated and the loose fit between the horizontal plate, the vertical plate and the pressure box affects the calibration accuracy; the purpose of the present invention is also to provide a calibration method for calibrating a building component testing machine using the calibration device for a building component testing machine.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] A calibration device for a building component testing machine includes a calibration device frame which is used to cover the periphery of a corresponding air inlet when in use, a standard sensor is installed on the calibration device frame, and the calibration device frame includes a frame bottom plate and surrounding frame side plates. The frame bottom plate and the surrounding frame side plates form a calibration space with an open front side, and the front ends of the surrounding frame side plates are provided with at least one circle of sealing mating parts for sealing with the front side plates of a pressure box.

[0008] The standard sensor is a standard flow meter and / or a standard pressure sensor.

[0009] The standard sensor is a standard flow meter. The surrounding frame side plates include an upper side plate, a lower side plate, a left side plate and a right side plate. The standard flow meter is horizontally arranged and connected to the left side plate.

[0010] The upper side plate, the lower side plate, the left side plate and the right side plate constitute a frame structure.

[0011] The sealing matching part comprises a circle of suction strips, the suction strips have an inner cavity and a suction port facing forward, and a vacuum pump connected to the inner cavity through an air pipe is arranged on the verification device frame.

[0012] The technical scheme of the building component testing machine verification method in the present invention is as follows:

[0013] A calibration method for a building component testing machine, wherein a calibration device frame cover of the building component testing machine calibration device is arranged on the periphery of an air inlet baffle, a sealing mating portion is sealed and mated with a front side plate of the building component testing machine, the air inlet baffle is located in a calibration space surrounded by a frame bottom plate of the calibration device frame, surrounding frame side plates and the front side plate of the building component testing machine, and a corresponding sensor on the building component testing machine is calibrated by a standard sensor on the calibration device frame.

[0014] The sealing mating part includes a circle of suction strips, which have an inner cavity and a forward suction port. A vacuum pump connected to the inner cavity through an air pipe is provided on the calibration device frame. The lowering device frame is fixed to the front side plate of the building component testing machine through the adsorption of the suction strips and the front side plate.

[0015] The beneficial effects of the present invention are as follows: the calibration device frame of the calibration device of the building component testing machine in the present invention can be directly covered on the periphery of the air inlet baffle, the sealing matching parts at the front ends of the surrounding frame side panels of the calibration device frame are sealed with the front side panels of the building component testing machine, the frame bottom plate, the surrounding frame side panels of the calibration device frame and the front side panels of the building component testing machine directly enclose a calibration space, and the corresponding sensors of the building component testing machine can be directly calibrated through standard sensors, without moving the horizontal and vertical plates of the building component testing machine for adjustment, thereby reducing the labor intensity during the calibration process, reducing the complexity of the calibration process, and also avoiding the problem of affecting the calibration accuracy due to the tight matching parts between the horizontal and vertical plates and the pressure box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a building component testing machine in the background technology of the present invention;

[0017] Figure 2 yes Figure 1 Side view of

[0018] Figure 3 It is a structural schematic diagram of the building component testing machine verification device of the present invention;

[0019] Figure 4 It is a schematic diagram of the cooperation between the building component testing machine and the building component testing machine verification device in the present invention;

[0020] Figure 5 yes Figure 4 Side view of. DETAILED DESCRIPTION

[0021] An implementation example of a building component testing machine calibration device Figures 3-5As shown: it includes a calibration device frame 15 for covering the periphery of the corresponding air inlet baffle when in use, the calibration device frame includes a frame bottom plate 16 and surrounding frame side plates, the surrounding frame side plates include an upper side plate 14, a lower side plate 19, a left side plate 17 and a right side plate, and the upper side plate, the lower side plate, the left side plate and the right side plate constitute a frame structure. A calibration port 18 is provided on the left side plate, and a standard sensor connected to the calibration port 18 is installed on the left side plate. In this embodiment, the standard sensor includes a standard pressure sensor and a horizontally arranged standard flow meter 19. The horizontal arrangement of the standard flow meter can avoid the influence of gravity on the airflow. The frame bottom plate 16 and the surrounding frame side plates form a test space 20 with an open front side for accommodating the air inlet baffle. A sealing matching part is arranged at the front end of the surrounding frame side plates for sealing with the front side plates of the pressure box. In this embodiment, the sealing matching part is a circle of suction strips 11 with a square structure. Each side of the square structure is connected to the front end of the corresponding surrounding frame side plates. The suction strips include a suction strip body. A connecting groove 12 is arranged at the rear side of the suction strip body. The front end of the surrounding frame side plates is inserted into the corresponding connecting groove. The groove wall of the connecting groove is connected to the surrounding frame side plates by gluing. The suction strip body has an inner cavity and a suction port 10 facing forward. Because the surrounding frame side plates are in a square structure as a whole, the suction port is also in a square circle as a whole. A vacuum pump 13 connected to the inner cavity through an air pipe is installed at the upper end of the test device frame. The suction strip body is made of flexible material. Under the action of the vacuum pump, the suction strip forms a suction cup. Through the action of the suction strip, both the sealing matching relationship with the front side plate and the fixation of the test device frame can be achieved.

[0022] When the pressure sensor and the gas flow meter in the building component testing machine are calibrated, it is not necessary to move the horizontal plate and the vertical plate of the building component testing machine. The calibration device frame 15 is directly covered on the periphery of the air inlet baffle 5 on the front side of the front side plate of the building component testing machine. The vacuum pump works, and the suction strip is adsorbed on the front side plate of the building component testing machine, which ensures the sealing relationship between the suction strip and the front side plate, and realizes the fixation of the calibration device frame. At this time, the frame bottom plate, the surrounding frame side plates and the front side plate 3 of the building component testing machine form a calibration space, and the air inlet baffle is in the calibration space. The air supply equipment of the building component testing machine works, and the calibration of the gas flow meter and the pressure sensor can be realized by comparing the values ​​of the standard flow meter, the standard pressure sensor and the gas flow meter and the pressure sensor of the building component testing machine itself. The entire calibration process does not require the movement and adjustment of the horizontal and vertical plates, and does not require the use of horizontal and vertical plates to enclose a test port. The calibration can be achieved using the calibration device frame itself. The calibration process is simple and convenient, the calibration labor intensity is low, and the calibration efficiency is high. At the same time, it also avoids the problem of air leakage caused by loose fit between the horizontal and vertical plates; loose fit between the horizontal and pressure boxes; loose fit between the vertical plates and the pressure box, which affects the calibration accuracy. Item 4 in the figure represents the fan; item 2 represents the pressure box.

[0023] In other embodiments of the present invention: according to the calibration requirements, if only the pressure sensor of the building component testing machine needs to be calibrated, then the standard sensor may only include the standard pressure sensor; if only the gas flow meter of the building component testing machine needs to be calibrated, then the standard sensor may only include the standard flow meter; the surrounding frame side panels may also be circular, and the corresponding suction strips should also be circular as a whole; the sealing between the sealing mating part and the front side plate may also be achieved without a vacuum pump. For example, the sealing mating part is one or more circles of sealing rings. At this time, a pushing cylinder that can apply a forward thrust may be provided on the rear side of the calibration device frame, and the sealing mating relationship between the sealing ring and the front side plate is ensured by pushing the calibration device frame forward by the pushing cylinder; the air inlet baffle may also be omitted; of course, a pulling structure may also be provided on the air inlet baffle to pull the calibration device frame to prevent the calibration device frame from flying out of the building component testing machine and causing danger.

[0024] Implementation of a verification method for a building component testing machine Figures 3-5 As shown: the calibration device frame cover of the building component testing machine calibration device is arranged on the periphery of the air inlet baffle. The specific structure of the building component testing machine calibration device is the same as the above-mentioned embodiments of the building component testing machine calibration device, and will not be described in detail here. The sealing matching part is sealed with the front side plate of the building component testing machine. The air inlet baffle is in the calibration space surrounded by the frame bottom plate of the calibration device frame, the surrounding frame side plates and the front side plate of the building component testing machine. The corresponding sensor on the building component testing machine is calibrated by the standard sensor on the calibration device frame. The sealing matching part includes a circle of suction strips, the suction strips have an inner cavity and a suction port facing forward. The calibration device frame is provided with a vacuum pump connected to the inner cavity through an air pipe. The lowering device frame is fixed to the front side plate of the building component testing machine by adsorption of the suction strips and the front side plate.

Claims

1. A building component testing machine calibration device, wherein a fan is arranged on the front side of the front side plate of the pressure box of the building component pressure testing machine, characterized in that: It includes a calibration device frame which is used to cover the periphery of the corresponding air inlet when in use, and a standard sensor is installed on the calibration device frame. The calibration device frame includes a frame bottom plate and surrounding frame side plates. The frame bottom plate and the surrounding frame side plates form a calibration space with an open front side for accommodating an air inlet baffle, and the front ends of the surrounding frame side plates are provided with at least one circle of sealing fitting parts for sealing with the rear sides of the front side plates of the pressure box.

2. The building component testing machine calibration device according to claim 1, characterized in that: The standard sensor is a standard flow meter and / or a standard pressure sensor.

3. The building component testing machine calibration device according to claim 2, characterized in that: The standard sensor is a standard flow meter. The surrounding frame side plates include an upper side plate, a lower side plate, a left side plate and a right side plate. The standard flow meter is horizontally arranged and connected to the left side plate.

4. The building component testing machine calibration device according to claim 3, characterized in that: The upper side plate, the lower side plate, the left side plate and the right side plate constitute a frame structure.

5. The building component testing machine calibration device according to any one of claims 1 to 4, characterized in that: The sealing matching part comprises a circle of suction strips, the suction strips have an inner cavity and a suction port facing forward, and a vacuum pump connected to the inner cavity through an air pipe is arranged on the verification device frame.

6. A method for calibrating a building component testing machine using the building component testing machine calibration device according to any one of claims 1 to 5, characterized in that: The calibration device frame cover of the calibration device of the building component testing machine is arranged on the periphery of the air inlet, and the sealing matching part is sealed with the front side plate of the building component testing machine. The frame bottom plate, the surrounding frame side plates and the front side plate of the building component testing machine of the calibration device frame form a calibration space, and the corresponding sensor on the building component testing machine is calibrated by the standard sensor on the calibration device frame.

7. The verification method of the building component testing machine according to claim 6, characterized in that: The sealing mating part includes a circle of suction strips, which have an inner cavity and a forward suction port. A vacuum pump connected to the inner cavity through an air pipe is provided on the calibration device frame. The lowering device frame is fixed to the front side plate of the building component testing machine through the adsorption of the suction strips and the front side plate.

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