CN113566923A - Air volume cover testing device - Google Patents
Air volume cover testing device Download PDFInfo
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- CN113566923A CN113566923A CN202110782158.9A CN202110782158A CN113566923A CN 113566923 A CN113566923 A CN 113566923A CN 202110782158 A CN202110782158 A CN 202110782158A CN 113566923 A CN113566923 A CN 113566923A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
- G01F22/02—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for involving measurement of pressure
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Abstract
The invention relates to an air volume cover testing device. The air volume cover testing device comprises a frame body, an air volume cover, a linkage structure, a sealing piece, a sensor and a control device, wherein the frame body comprises a body and wheels arranged on the body, the wheels can move freely, the testing efficiency is improved, the air volume cover comprises a base and an air volume cover frame, the base is detachably connected with one end, far away from the wheels, of the body, the linkage structure is detachably connected with the air volume cover frame, the linkage structure drives the air volume cover to move up and down along the direction of the central line of the frame body, the linkage structure is operated to drive the air volume cover to move up and down along the direction of the central line of the frame body, the air volume cover is attached to an air port, the testing efficiency is improved, the adaptability of the testing device is enhanced, the sealing piece is arranged on the inner side of the air volume cover frame, the sensor is arranged on the sealing piece, the sensor sends collected information to the control device, and under the action of the sealing piece, the air volume cover frame is attached to the air port, and the testing accuracy is improved.
Description
Technical Field
The invention relates to the technical field of electromechanical installation and measurement, in particular to an air volume cover testing device.
Background
With the development of the national building industry, buildings with different functional purposes gradually enrich our lives, such as libraries, office buildings, high-grade hotel rooms, meeting rooms and the like. Meanwhile, people put forward higher and higher requirements on the comfortable environment of buildings in the buildings, wherein the air outlet air quantity is one of important test indexes, and the air outlet quantity of the actual operation air outlet of the heating, ventilating and air conditioning system can be accurately measured to judge whether the design and specification requirements are met. The method is divided into two methods according to GB50243-2016 (Standard for construction quality inspection and acceptance of Ventilation and air-conditioning engineering) E.2 air port air volume measurement, wherein the first method is that measuring points are arranged according to the standard requirements, an anemometer is used for measuring the air speed, and the average value of the air speed is multiplied by the area of an air port, so that the method is simple but has larger error; the second method is to adopt an air volume cover for measurement, the method covers all the air volume of the air outlet in the air volume cover, collects the air volume on an air velocity homogenizer on the base, and then calculates the air volume according to the size of the base. The display of the air volume cover adopts PDA and liquid crystal screen display, and the data of wind speed, wind temperature and wind volume can be obtained. With this method, the testing efficiency is low and the limitation is low.
Disclosure of Invention
Therefore, it is necessary to provide an air volume cover testing apparatus for improving the testing accuracy, the testing efficiency and the adaptability.
An air volume cover testing device, comprising:
the frame body comprises a body and wheels arranged on the body;
the air volume cover comprises a base and an air volume cover frame, the base is fixedly connected with the air volume cover frame, and the base is detachably connected with one end of the body, which is far away from the wheels;
the linkage structure is detachably connected with the air volume cover frame and drives the air volume cover to move up and down along the direction of the central line of the frame body;
a sealing member provided inside the air volume cover frame;
a sensor disposed on the seal; and
and the control device is electrically connected with the sensor, and the sensor sends the acquired information to the control device.
The air volume cover testing device comprises a frame body, an air volume cover, a linkage structure, a sealing piece, a sensor and a control device, wherein the frame body comprises a body and wheels arranged on the body, so that the whole testing device can move freely, the operation is convenient, the testing efficiency is improved, the air volume cover comprises a base and an air volume cover frame, the base is fixedly connected with the air volume cover frame, the base is detachably connected with one end of the body, which is far away from the wheels, the linkage structure is detachably connected with the air volume cover frame, the linkage structure drives the air volume cover to move up and down along the direction of the central line of the frame body, the air volume cover is driven to move up and down along the direction of the central line of the frame body by operating the linkage structure, so that the air volume cover is attached to an air port, the linkage structure is operated, the testing efficiency is improved, the adaptability of the testing device is enhanced, and the sealing piece is arranged on the inner side of the air volume cover frame, on the sealing member was located to the sensor, the information transmission that the sensor will gather gave controlling means, through the effect of sealing member, improved the laminating between amount of wind cover frame and the wind gap, improved the testing accuracy.
In one embodiment, the brake device further comprises a first brake gas strut, one end of the first brake gas strut is fixedly connected with the body, and the other end of the first brake gas strut is fixedly connected with the base, so that the base is detachably connected with one end, far away from the wheel, of the body.
In one embodiment, the air volume cover further comprises a second brake gas strut, one end of the second brake gas strut is connected with the linkage structure, and the other end of the second brake gas strut is connected with the air volume cover frame.
The air volume cover overturning brake air support is adjusted through the arrangement of the first brake air support and the second brake air support, so that the test range of measuring the air volume of the air outlet at different angles by the air volume cover is widened, and the application range and the applicability of the whole test device are improved.
In one embodiment, the air volume hood further comprises a turning part, and the turning part is connected with the other end of the second brake air support and the air volume hood frame.
Through the setting of the piece that turns round, the adjustment of the second braking gas of being convenient for laminate more between amount of wind cover frame and the wind gap.
In one embodiment, the sealing device further comprises a monitoring device, the monitoring device is arranged on the bending piece and used for monitoring the area where the sealing piece is located, the monitoring device is electrically connected with the control device, and the monitoring device sends the adopted monitoring data to the control device.
Whether the air volume cover is accurately attached to the air port or not is clearly checked through the monitoring device, and then the air volume cover is combined with the sensor, so that the tightness of the air volume cover frame and the air port can be further ensured, the tightness of the measured air volume is ensured, and the testing accuracy is realized.
In one embodiment, the body comprises four vertical rods, cross rods and connecting rods, the four vertical rods are sequentially arranged in parallel, the cross rods are arranged on the vertical rods, the inner side surfaces of the adjacent vertical rods are respectively provided with the cross rods, and the connecting rods are connected with the opposite cross rods. The body with the structure can adjust the size and the like of the body, so that the body is applicable to various scenes, is convenient to move the testing device and is convenient to operate.
In one embodiment, the linkage structure comprises a first wire tube, a second wire tube, a semicircular ring and a handle; the first wire pipe is connected with the second brake gas strut and is parallel to the central axis of the body; one end of the second wire tube penetrates through the semicircular ring to be hinged with the first wire tube, and the handle is arranged at the other end of the second wire tube in a penetrating mode. By adopting the linkage structure, the air volume cover frame can be adjusted to be attached to the air port through the linkage structure, so that the operation of operators is facilitated, and the test efficiency is improved.
In one embodiment, the brake system further comprises a steel plate, wherein the steel plate is fixedly connected with the first electric wire pipe, and the second brake gas strut is detachably connected with the steel plate.
In one embodiment, the wire harness further comprises a guide member, the guide member is sleeved outside the first wire tube, and the guide member is connected with the first wire tube through a fastener. Through the setting of guide, play the guide effect.
In one embodiment, the device further comprises a display device, and the display device is electrically connected with the control device. Through the setting of display device, be convenient for operating personnel to look over relevant data etc..
Drawings
Fig. 1 is a schematic structural view of an air volume cover testing device according to an embodiment;
fig. 2 is a schematic structural view of the frame body shown in fig. 1.
FIG. 3 is a schematic view of the connection of the connecting rod to the cross bar shown in FIG. 2;
FIG. 4 is a schematic structural view of the connection of the first brake gas strut and the air volume cover shown in FIG. 1;
FIG. 5 is a schematic structural view of the first brake pad and body shown in FIG. 1;
FIG. 6 is a schematic structural view of the second brake pad and linkage shown in FIG. 1 in connection therewith;
FIG. 7 is a schematic structural view of the linkage structure shown in FIG. 1;
FIG. 8 is a schematic view of the linkage shown in FIG. 4 in connection with a guide;
FIG. 9 is a schematic structural view of the air volume hood testing device shown in FIG. 1 for testing a vertical lower air inlet above a horizontal ground;
FIG. 10 is a schematic structural view of the air volume cover testing device shown in FIG. 1, when the device is used for testing a vertical lower air supply opening above an inclined ground;
fig. 11 is a schematic structural view of the air volume cover testing device shown in fig. 1 when the air volume cover testing device is used for testing an air supply opening on the upper side of the inclined ground.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 8, an air volume cover testing apparatus of an embodiment includes a frame 110, an air volume cover 120, a linkage structure, a sealing member 140, a sensor 150, and a control device 160. This amount of wind cover testing arrangement is used for laminating with the wind gap, tests the amount of wind in wind gap, and can be applicable to various wind gaps. This amount of wind cover testing arrangement side not only convenient to use, improvement wind gap efficiency of software testing, saving the cost of labor, ensure the measuring accuracy, can also realize data teletransmission etc.. Furthermore, the air volume cover testing device can be suitable for measuring the air volume of an air supply air port with the clear height between the air port and the ground not more than 4500mm, the horizontal inclination of the ground not more than 30 degrees, and the included angle between the air port and the horizontal direction is-90 degrees to +90 degrees, and the remote transmission of data is realized.
Specifically, the frame body 110 includes a body 111 and wheels 112 provided on the body 111. Thereby can promote framework 110, can be in order to promote amount of wind cover testing arrangement, effectively improve the intensity of work when operating personnel is handheld in the amount of wind test, effectively improve amount of wind efficiency of software testing, the problem that the long time operation intensity of labour is big when avoiding adopting artifical both hands to lift the mode of base. In addition, the wind gap in the building is generally concentrated in the furred ceiling region, adopts general test method, and operating personnel need move the ladder of ascending a height behind a wind gap of test, climbs to the take next measurement to a take the altitude afterwards, causes behind the test a plurality of wind gaps that transport, climbing, lift action too frequently leads to the efficiency of software testing low, is unsuitable for the characteristics of big batch wind gap amount of wind test. In this embodiment, the frame 110 includes a body and wheels 112 disposed on the body, so that the whole testing device can move freely, thereby facilitating operation, improving testing efficiency, and being suitable for testing the air volume of the large-batch air outlet.
In one embodiment, the wheels 112 are universal wheels. Further, the wheels 112 may be 3-inch universal wheels, so that the air volume cover testing device can freely move in all horizontal directions. Wherein, the wheel 112 can be connected with the body 111 through the outer hexagonal sleeve bolt 1121, which is convenient for installation and disassembly. When the wheel 112 is a universal wheel, the brake plate can be provided to realize the function of braking by stepping on the brake plate by feet, so that the braking of the air volume cover testing device can be conveniently controlled on uneven ground.
Further, in an embodiment, the body 111 includes four uprights 1111, cross bars 1112 and connecting rods 1113, the four uprights 1111 are sequentially arranged in parallel, the cross bars 1112 are arranged on the uprights 1111, the cross bars 1112 are arranged on the inner side surfaces of adjacent uprights 111, and the connecting rods 1113 are connected to the opposite cross bars 1112, as shown in fig. 2. The body with the structure can adjust the size of the body, namely the size of the body 111, so that the body can be suitable for various scenes, is convenient for moving the testing device and is convenient to operate.
Specifically, the upright 1111, the cross bar 1112 and the connecting rod 1113 are all galvanized electric wire pipes. Further, the upright 1111 and the cross bar 1112 are both galvanized electric pipes with the wall thickness of SC25(DN25) of 3.2mm, and the connecting rod 1113 is a galvanized electric pipe with the wall thickness of 2.8mm of a 750mm sleeve SC20(DN 20). The cross rod 1112 and the vertical rod 1111 may be fixedly connected by welding or the like. The cross bar 1112 and the connecting rod 1113 can be detachably connected by a pin 1114, as shown in fig. 3. In this embodiment, 750mm sleeves SC20(DN20) galvanized electric wire pipes with the wall thickness of 2.8mm are respectively inserted into four-corner three-step frames welded with the galvanized electric wire pipes with the wall thickness of 3.2mm SC25(DN25), and then are combined, assembled and connected by using 304 stainless steel GB882 stainless steel pin shafts, and finally formed and assembled into a body, wherein the length, width and height of the body are 1500 mm, 800 mm and 1600 mm respectively. The size of the body may be selected according to actual construction, and is not limited herein. The body 111 utilizes the functional characteristic of assembling the connection, can be according to the position of opening a hole of difference on the horizontal pole 1112, changes the round pin axle position, and then makes this framework can adjust in three-dimensional space size, and then can make this framework can adjust the size of body according to the wind gap size to can measure the horizontal gradient on ground and be not more than 30 degrees top vertical air supply. And when the testing device meets a narrow passageway space, the testing device can be quickly disassembled and assembled. Further, in the present embodiment, the frame 110 has a three-layer structure, i.e. there are three rows of the cross bars 1112 arranged in parallel. The layer structure of the housing 110 may be selected according to actual construction, and may be a two-layer structure or a four-layer structure.
The air volume cover 120 comprises a base 121 and an air volume cover frame 122, the base 121 is fixedly connected with the air volume cover frame 122, and the base 121 is detachably connected with one end of the body 111 far away from the wheels 112. In this embodiment, the base 121 is removably connected to the connecting rod 1113 remote from the wheels 112. The linkage structure is detachably connected with the air volume cover frame 122, and the linkage structure drives the air volume cover 120 to move up and down along the direction of the central line of the frame body, namely, the linkage structure drives the air volume cover 120 to move, so that the air volume cover frame 122 is attached to the air port.
The sealing member 140 is disposed inside the air volume cover frame 122, wherein the sealing member 140 may be an epdm foam tape sealing strip. Therefore, the air volume cover frame 122 is tightly attached to the air port through the sealing piece 140, and the test accuracy is improved. Also disposed on the seal 140 is a sensor 150, wherein the sensor 150 may be a flexible membrane pressure sensor. The sensor 150 can be uniformly adhered and fixed on the surface of the sealing strip with foam adhesive, and further, the sensor 150 is uniformly adhered to the top of the sealing element 140. It should be noted that the number of the sensors 150 may be determined according to different sizes of the wind-collecting cover reinforcing frame, and the sensors 150 may be flexible film pressure sensors, so that the sensors 150 are better fitted. The control device 160 is electrically connected to the sensor 150, and the sensor 150 transmits the collected information to the control device 160. Specifically, the sensor 150 is configured to measure a pressure signal of the air volume coming out of the air outlet acting on the air volume cover frame 122, transmit the pressure signal to the control device, and automatically remind the user to perform a test record when the pressure signal received by the control device reaches 1000 Pa. The component has the main function of ensuring the tightness during measuring the air quantity and simultaneously preventing the reinforcing frame of the air collecting cover from scratching the air port.
The air volume cover 120 testing device comprises a frame body 110, an air volume cover 120, a linkage structure, a sealing piece, a sensor and a control device, wherein the frame body 110 comprises a body 111 and wheels 112 arranged on the body 111, so that the whole testing device can move freely, the operation is convenient, the testing efficiency is improved, the air volume cover 120 comprises a base 121 and an air volume cover frame 122, the base 121 is fixedly connected with the air volume cover frame 122, the base 121 is detachably connected with one end, far away from the wheels 112, of the body 111, the linkage structure is detachably connected with the air volume cover frame 122, the linkage structure drives the air volume cover 120 to move up and down along the direction of the central line of the frame body 110, the linkage structure is operated to drive the air volume cover 120 to move up and down along the direction of the central line of the frame body 110, the air volume cover 120 is attached to an air port, the linkage structure can be operated, the testing efficiency is improved, and the adaptability of the testing device is enhanced, and the inboard of amount of wind cover frame 122 is equipped with sealing member 140, and on sensor 150 located sealing member 140, sensor 150 sent the information of gathering to controlling means 160, through the effect of sealing member 140, improved the laminating between amount of wind cover frame 122 and the wind gap, improved the test accuracy.
In order to widen the test range of measuring the air quantity of the air outlet at different angles by the air quantity cover, the application range and the applicability of the whole test device are improved. In one embodiment, the wind volume cover testing device further comprises a first brake gas strut 170, one end of the first brake gas strut 170 is fixedly connected with the body 111, and the other end of the first brake gas strut 170 is fixedly connected with the base 121, so that the base 121 is detachably connected with one end of the body 111 far away from the wheel 112. Specifically, in this embodiment, one end of the first brake gas strut 170 is fixedly connected to the center of the connecting rod 1113 away from the wheel 112 by using the dual-jaw steerable vice 172, and the other end of the first brake gas strut 170 is fixedly connected to the base 121 by the flat-nose vice 171 or the like.
Further, in an embodiment, the air volume cover testing device further includes a second brake gas strut 180, one end of the second brake gas strut 180 is connected to the linkage structure, and the other end of the second brake gas strut 180 is connected to the air volume cover frame 122. Therefore, the turnover of the second brake air support 180 can be adjusted to drive the air volume cover frame 122 to rotate, so that the air volume cover 120 is turned over and attached to the air opening. The air volume cover overturning brake air support is adjusted through the arrangement of the first brake air support and the second brake air support, so that the test range of measuring the air volume of the air outlet at different angles by the air volume cover is widened, and the application range and the applicability of the whole test device are improved. And then can be when measuring the not co-altitude wind gap, through adjust first braking gas strut and second braking gas strut can, realize the measurement of superelevation wind gap, side air-out wind gap and slope ground wind gap, avoid the limitation of measurement.
In addition, in this embodiment, the number of the second brake pads 180 is two, and the two second brake pads 180 are located on two sides of the frame respectively and are symmetrically distributed. Therefore, the first brake air support and the two second brake air supports are matched for use, the verticality of the base, the air volume cover frame and the air outlet direction of the air port can be adjusted, and the air volume of the side air port with the horizontal included angle of-90 degrees to 90 degrees can be measured more accurately.
Referring to fig. 6, in an embodiment, the airflow hood testing apparatus further includes a turning member 190, and the turning member 190 connects the other end of the second brake pad 180 with the airflow hood frame 122. That is, the turn piece 190 connects the second brake gas strut 180 and the wind cowl frame 122. Through the setting of the turning piece 190, the adjustment of the second brake gas strut is convenient for, so that the air volume cover frame and the air port are more attached. The turning piece 190 may be a galvanized electric pipe, such as 150m × 150mm SC20(DN20) with a wall thickness of 2.8 mm. Further, the turning member 190 is a right-angle turning member, which is more convenient for adjustment of the second brake pad. The turning member 190 may be fixedly connected to the second brake air stay 180 and the air volume cover frame 122 by means of a bolt roller bearing 191, or the like.
In order to further ensure the tightness of the measured air volume, the air volume cover testing device further comprises a monitoring device 210, the monitoring device 210 is arranged on the turning piece 190, the monitoring device 210 is used for monitoring the area where the sealing piece 140 is located, the monitoring device 210 is electrically connected with the control device 160, and the monitoring device 210 sends the adopted monitoring data to the control device 160. Whether the air volume cover is accurately attached to the air port or not is clearly checked through the monitoring device, and then the air volume cover is combined with the sensor, so that the tightness of the air volume cover frame and the air port can be further ensured, the tightness of the measured air volume is ensured, and the testing accuracy is realized. In one embodiment, the number of the monitoring devices 210 is four, that is, the monitoring devices 210 are installed at positions corresponding to four corners of the air volume cover frame 122. In other words, the monitor device 210 is provided on the turning member 190, and the monitor device 190 is provided at a position where a projection of the position of the turning member 190 on the airflow hood frame 122 is located at a corner of the airflow hood frame 122. The rotation angle of the camera can be remotely controlled, whether the air volume cover is accurately attached to the air port can be clearly observed, and the tightness of the air volume and the air port can be ensured by combining the pressure alarm of the sensor, so that the accuracy of the test is improved.
Further, in an embodiment, the PU (thermosetting polyurethane elastomer) rod 181 is connected with the horizontal section of the turning part 190 by a centering buckle, and then the monitoring devices 210 are respectively installed at the end parts of the PU rod 181, and the lens direction of the monitoring devices 210 is adjusted to face the sealing part 140, so that the fitting condition of the air volume cover frame and the air port can be monitored in real time. The size of the PU rod 181 may be 250mm 30mm 20 mm.
In one embodiment, the linkage structure includes a first wire tube 131, a second wire tube 132, a semi-circular ring 133, and a handle 134. The first electric pipe 131 is connected to the second brake gas strut 180, the first electric pipe 131 is parallel to the central axis of the body 111, and one end of the second electric pipe 132 is hinged to the first electric pipe 131 through the semicircular ring 133. A handle 134 is disposed through the other end of the second conduit 132. By adopting the linkage structure, the air volume cover frame can be adjusted to be attached to the air port through the linkage structure, so that the operation of operators is facilitated, and the test efficiency is improved. The first wire tube 131 can be a galvanized wire tube with a wall thickness of SC20(DN20) of 2.8mm, the second wire tube 132 can be a galvanized wire tube with a wall thickness of SC20(DN20) of 2.8mm, and the first wire tube 131 and the second wire tube 132 can be hinged through a 4545 living hinge 135. The semicircular ring 133 can be a semicircular ring with the thickness phi of 5mm and the semicircular diameter phi of 50mm, and the handle 134 can be a soft rubber handle sleeve of a handle glove with the inner diameter phi of 20 mm. The dimensions of the first wire tube 131, the second wire tube 132, the semicircular ring 133, and the handle 134 are not limited herein and may be determined according to the construction.
In addition, the number of the first wire tubes 131 and the second wire tubes 132 can be two, and the first wire tubes 131 and the second wire tubes 132 are hinged to each other. The number of the first brake gas struts is two, so that the two linkage structures respectively drive the corresponding first brake gas struts to move.
The linkage structure can ensure that the air volume cover can move in the vertical direction, and the joint degree between the air volume cover frame and the air port is adjusted according to different forces applied to the handle 134 by an operator, so that the tightness of the tested air volume is ensured, and the test accuracy is improved.
Further, in an embodiment, the wind volume cover testing device further comprises a steel plate 220, the steel plate 220 is fixedly connected with the first electric wire pipe 131, and the second brake gas strut 180 is detachably connected with the steel plate 220. Specifically, the steel plate 220 has punched holes, and the diameter thereof may be 5 mm. Further, the number of punched holes may be 6. So that the steel plate 220 is detachably connected with the second brake gas strut by the bolts 221 passing through the punched holes. And the steel plate 220 and the first wire tube 131 may be fixedly connected by welding or the like. Through the setting of steel sheet 220, play certain limiting displacement, and improve intensity.
Further, in one embodiment, the wind volume cover testing device further includes a guiding element 230, the guiding element 230 is sleeved outside the first electric wire tube 131, and the guiding element 230 is connected with the first electric wire tube 131 through a fastening element 240. The guide 230 serves as a guide sleeve for the linkage to move in the vertical direction. Specifically, the guide 230 may be fixed to the body by welding or the like. Wherein the fastener 240 may be a GB834 stainless steel knurled hand screw. The fastening member 240 penetrates into the guide member 230 to serve as a vertical height hovering mechanism for up-and-down adjustment of the air volume cover. The guide piece and the linkage structure are matched for use, so that the air volume cover can be suspended on the support trolley frame when the air volume does not need to be measured, hands are liberated, and manual work is saved.
Further, in an embodiment, the control device 160 provides the functions of serial port to WIFI, serial port to ethernet, and ethernet to WIFI based on the dual-network-port serial server, and can convert the RS232/485 serial port into a TCP/IP network interface, thereby implementing bidirectional transparent data transmission between the RS232/485 serial port and the WIFI/ethernet.
In addition, in an embodiment, the air volume cover detection device further includes a display device 250, the display device 250 is electrically connected with the control device, the display device 250 is used for displaying the pressure value measured by the sensor, and when it is determined that all the pressure sensors reach 1000Pa, the air volume cover detection device automatically reminds to perform air volume test recording. It should be noted that the testing device may further include a terminal, and the terminal is connected to the control device, so as to remotely read the test data, and the like, where the terminal may be a mobile terminal such as a mobile phone and a tablet computer. In addition, the control device 160 may also be integrated with a terminal, and the sensor and the like are connected to the cloud, and the terminal may obtain corresponding data from the cloud.
In order to facilitate the operation of an operator and the storage of an operator, the air volume cover testing device further comprises a detachable storage bag box 260, the detachable storage bag box 260 is bound on a rod piece of the body, and the detachable storage bag box can be conveniently detached, washed and replaced. Therefore, after the test is finished, the tester can put articles such as drawings and tools into the detachable storage bag box to perform the work of cleaning the falling hands in the engineering. Wherein, the detachable storage bag box 260 can be composed of tarpaulin canvas weaved, binding tapes and the like.
The installation method of the air volume cover testing device comprises the following steps: first, the wheels are spliced with the body to form a unit, as described above. According to different hole positions on the galvanized electric wire pipe, the positions of the pin shafts are changed, and then the size of the frame in a three-dimensional space can be adjusted. Then, the first wire tube in the linkage structure vertically passes through the guide piece from top to bottom, and is screwed down and fixed to be vertically placed by using a GB834 stainless steel knurled hand screw. The second wire pipe passes through the semicircular ring, the rear end head of the second wire pipe is hinged with the first wire pipe by using a 4545 living hinge, and the other end head of the second wire pipe is provided with a handle.
Then, welding the top end of the first wire tube with a steel plate, and connecting the steel plate with a second brake gas strut through a bolt; and then welding the steel plate and the turning piece.
Then, the base and the air volume cover frame are assembled and installed, and then the turning piece is connected with the air volume cover frame through the bolt roller bearing. And then, adhering the ethylene propylene diene monomer foamed sealing strip to the air volume cover frame. The flexible film pressure sensor is uniformly adhered to the top of the ethylene propylene diene monomer foam tape rubber sealing strip on the top of the air volume cover frame. And (3) connecting the PU rods with the diameters of 250mm, 30mm and 20mm with the horizontal sections of the turning pieces in a centering buckling manner, respectively installing 4 monitoring devices at the ends of the PU rods with the diameters of 250mm, 30mm and 20mm, and adjusting the direction of a lens to face the ethylene propylene diene monomer foaming tape adhesive sealing strip.
One side of one end of the first brake gas strut is fixedly connected with the center of a galvanized electric wire pipe with the length of 750mm and the wall thickness of SC20(DN20) of 2.8mm by using a double-opening turnable vice jaw, and the other end of the first brake gas strut is clamped with the lower edge of the base by a flat vice jaw.
Finally, a control device and a display device are installed on the body, and the circuit is connected. And finally, the detachable storage bag box is bound on the crosspiece at the lowest level of the frame by using the tying belt.
Above-mentioned amount of wind cover testing arrangement, the preparation material job site that the automobile body adopted is convenient for draw materials, simple manufacture, low cost, convenient and practical can effectively improve the working strength when personnel are handheld in the amount of wind test, effectively improves amount of wind efficiency of software testing. In addition, the upright frame is ensured through the different heights of the wheels arranged on the body, and the testing range of the air volume cover for measuring the complicated ground overhead can be widened; through adjusting first braking gas props and second braking gas props, can widen the measuring test range that the amount of wind cover measured different angles air-out wind gap amount of wind.
And the sensor, the sealing element and the monitoring device are arranged in a matched manner, so that the sealing performance of the air volume cover frame in the air volume measurement can be ensured, and the air volume testing precision of the air inlet is ensured. In addition, through the arrangement of the control device, the data recording and storing are simplified, the error rate of manual recording is reduced, paperless operation is facilitated, the remote transmission and control of the measured data are realized, and meanwhile, the data loss is reduced and the function of quick searching is realized.
The construction method of the air volume cover testing device of the embodiment comprises the following steps: according to the size of the test air port, the air volume cover frames with different sizes need to be replaced, and the size structure of the body is subjected to size adjustment in a three-dimensional space, so that the size of the adjusted body is matched with the size of the air volume cover frame of the test air port. And locking the wheels at the testing position, and adjusting the height of the support legs of the longitudinal body structure above the corresponding wheels of the frame to ensure that the air volume cover frame and the base are vertical to the air outlet direction of the air port.
And then, operating the linkage structure to drive the first brake air support and the second brake air support to move, further adjusting the air volume cover frame and the base to be vertical to the air outlet direction of the air port, and then measuring the air volume.
The following describes a construction method of the air volume cover testing device with a specific example.
The first embodiment is as follows: air is supplied downwards vertically in the air outlet direction of a horizontal ground
As shown in fig. 9, the main body 11 is stopped under the tuyere of the air volume to be measured, and the tester brakes the self-locking pedal on the wheel 12 to keep the main body 11 fixed. The tester unscrews the GB834 stainless steel knurled hand screw on the guide 13, and releases the air volume cover 14 freely to the bottom. A tester stands in front of the handles 15, holds the left and right handles 15 with both hands respectively and presses downwards with force, utilizes the first electric wire pipe 16 and the second electric wire pipe 17 to jack the air volume cover upwards along the guide piece 13, and waits for the flexible film pressure sensor 19 on the surface of the ethylene propylene diene monomer foam tape rubber sealing strip 18 at the top of the air volume cover frame 14a of the air volume cover 14 to give an alarm through the display device. The angle of the monitoring device 19a is called by the terminal, and after secondary confirmation: 1) when the air volume cover is stuck to the air port frame, the sensors can be transmitted to the control device through the pressure signal conversion module, so that corresponding pressure values are displayed on the display, and when all the pressure sensors are confirmed to reach 1000Pa, automatic reminding is carried out to carry out air volume test recording; 2) and the 4 monitoring devices simultaneously confirm that the ethylene propylene diene monomer foam tape rubber sealing strip at the top of the frame on the air volume cover frame is tightly attached to the edge of the air port. ) After the air port and the air volume cover are well attached and sealed, the air volume can be measured and recorded at the moment. Then, the device power supply 12V lithium battery power supply in the control device is checked, the system is turned on after no problem is confirmed, the mobile terminal is used for connecting with the control device, and then the data of the test is read remotely. And after the test is finished, placing articles such as drawings and tools into the detachable storage bag box, and well performing hand-dropping cleaning work.
Example two: air is supplied downwards vertically in the air outlet direction of a horizontal ground
As shown in fig. 10, when the parking space in the area of the air inlet to be tested has a slope not exceeding 30 °, the body 21 is stopped under the air inlet of the air volume to be tested, and the tester brakes the self-locking pedal on the wheel 22 to keep the body 21 stationary. The body 21 is ensured to be straight through inserting the connecting rods into the cross rods at different heights, and the air volume cover frame and the base are ensured to be vertical to the air outlet direction of the air outlet.
The tester unscrews the GB834 stainless steel knurled hand screw on the guide 23, releasing the air volume cover 24 freely to the bottom. The tester stands in front of the handles 25, holds the left and right handles 25 with both hands respectively and presses downwards with force, utilizes the first wire pipe 26 and the second wire pipe 27 to jack the air volume cover upwards along the guide piece 23, and waits for the flexible film pressure sensor 29 on the surface of the ethylene propylene diene monomer foam tape rubber sealing strip 28 at the top of the air volume cover frame 24a of the air volume cover 24 to give an alarm through the display device. The angle of the monitoring device 29a is called by the terminal, and after secondary confirmation: 1) when the air volume cover is stuck to the air port frame, the sensors can be transmitted to the control device through the pressure signal conversion module, so that corresponding pressure values are displayed on the display, and when all the pressure sensors are confirmed to reach 1000Pa, automatic reminding is carried out to carry out air volume test recording; 2) and the 4 monitoring devices simultaneously confirm that the ethylene propylene diene monomer foam tape rubber sealing strip at the top of the frame on the air volume cover frame is tightly attached to the edge of the air port. ) After the air port and the air volume cover are well attached and sealed, the air volume can be measured and recorded at the moment. Then, the device power supply 12V lithium battery power supply in the control device is checked, the system is turned on after no problem is confirmed, the mobile terminal is used for connecting with the control device, and then the data of the test is read remotely. And after the test is finished, placing articles such as drawings and tools into the detachable storage bag box, and well performing hand-dropping cleaning work.
Example three: horizontal ground, side blowing with a certain angle at air port
As shown in fig. 11, the air inlet to be tested has a certain angle with the horizontal ground for lateral air supply, the body 31 is stopped under the air inlet with the air volume to be tested, and the tester brakes the self-locking pedal on the wheel 32 to keep the body 31 stationary. The first brake air supports 39c and the second brake air supports 39d on the two sides of the body 31 are adjusted to enable the base 34b and the air volume cover frame 34a of the air volume cover 34 to be turned over laterally, and the base 34b is ensured to be perpendicular to the air outlet direction of the air opening.
After the overturning brake gas strut is stable and immobile, a tester unscrews the GB834 stainless steel knurled hand-screwed screw on the guide part 33, and freely releases the air volume cover 34 to the bottom. The tester stands in front of the handles 35, holds the left and right handles 35 with both hands respectively and presses downwards with force, utilizes the first electric wire 36 and the second electric wire 37 to jack the air volume cover upwards along the guide piece 33, and waits for the flexible film pressure sensor 39 on the surface of the ethylene propylene diene monomer foam tape rubber sealing strip 38 at the top of the air volume cover frame 34a of the air volume cover 34 to give an alarm through the display device. The angle of the monitoring device 39a is called by the terminal, and after secondary confirmation: 1) when the air volume cover is stuck to the air port frame, the sensors can be transmitted to the control device through the pressure signal conversion module, so that corresponding pressure values are displayed on the display, and when all the pressure sensors are confirmed to reach 1000Pa, automatic reminding is carried out to carry out air volume test recording; 2) and the 4 monitoring devices simultaneously confirm that the ethylene propylene diene monomer foam tape rubber sealing strip at the top of the frame on the air volume cover frame is tightly attached to the edge of the air port. ) After the air port and the air volume cover are well attached and sealed, the air volume can be measured and recorded at the moment. Then, the device power supply 12V lithium battery power supply in the control device is checked, the system is turned on after no problem is confirmed, the mobile terminal is used for connecting with the control device, and then the data of the test is read remotely. And after the test is finished, placing articles such as drawings and tools into the detachable storage bag box, and well performing hand-dropping cleaning work.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an amount of wind cover testing arrangement which characterized in that includes:
the frame body comprises a body and wheels arranged on the body;
the air volume cover comprises a base and an air volume cover frame, the base is fixedly connected with the air volume cover frame, and the base is detachably connected with one end of the body, which is far away from the wheels;
the linkage structure is detachably connected with the air volume cover frame and drives the air volume cover to move up and down along the direction of the central line of the frame body;
a sealing member provided inside the air volume cover frame;
a sensor disposed on the seal; and
and the control device is electrically connected with the sensor, and the sensor sends the acquired information to the control device.
2. The airflow hood testing device of claim 1, further comprising a first brake air supporting device, wherein one end of the first brake air supporting device is fixedly connected with the body, and the other end of the first brake air supporting device is fixedly connected with the base, so that the base is detachably connected with one end, far away from the wheels, of the body.
3. The air volume cover testing device according to claim 1 or 2, further comprising a second brake air support, wherein one end of the second brake air support is connected with the linkage structure, and the other end of the second brake air support is connected with the air volume cover frame.
4. The airflow hood test device according to claim 3, further comprising a turn member connecting the other end of said second brake pad and said airflow hood frame.
5. The airflow hood testing device of claim 4, further comprising a monitoring device, wherein the monitoring device is arranged on the turning part and used for monitoring the area where the sealing part is located, the monitoring device is electrically connected with the control device, and the monitoring device sends acquired monitoring data to the control device.
6. The airflow hood testing device of claim 3, wherein the body comprises four upright posts, cross bars and connecting rods, the four upright posts are sequentially arranged in parallel, the cross bars are arranged on the upright posts, the cross bars are arranged on the inner side surfaces of the adjacent upright posts, and the connecting rods are connected with the opposite cross bars.
7. The airflow hood test device of claim 3, wherein said linkage structure comprises a first conduit, a second conduit, a semi-circular ring, and a handle; the first wire pipe is connected with the second brake gas strut and is parallel to the central axis of the body; one end of the second wire tube penetrates through the semicircular ring to be hinged with the first wire tube, and the handle is arranged at the other end of the second wire tube in a penetrating mode.
8. The blast volume hood test device of claim 7, further comprising a steel plate, wherein the steel plate is fixedly connected with the first wire pipe, and the second brake gas strut is detachably connected with the steel plate.
9. The blast hood test device according to claim 7, further comprising a guide member, wherein the guide member is sleeved outside the first electric wire tube, and the guide member is connected with the first electric wire tube through a fastening member.
10. The airflow hood test device of claim 1, further comprising a display device electrically connected to said control device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782158.9A CN113566923A (en) | 2021-07-12 | 2021-07-12 | Air volume cover testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782158.9A CN113566923A (en) | 2021-07-12 | 2021-07-12 | Air volume cover testing device |
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| CN113566923A true CN113566923A (en) | 2021-10-29 |
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