Air volume measuring device convenient to install

Abstract

According to the air volume measuring device convenient to install, a pressing plate is driven to move downwards, the pressing plate moves downwards to drive a connecting column and a U-shaped plate to move downwards accordingly, the U-shaped plate moves downwards to drive two rotating plates to rotate, and two driving plates are pushed to be away from each other; the two driving plates are far away from each other so as to drive the two positioning blocks to be far away from each other, and then the two connecting frames can be positioned and mounted, so that the positioning and mounting of the air volume measuring pipe can be completed, and the air volume measuring device can be conveniently detached, replaced or maintained in the later period; and the installation convenience and flexibility of the air volume measuring device are improved.

Description

Technical Field

[0001] This application relates to the field of air volume measurement devices, and more particularly to an air volume measurement device that is easy to install. Background Technology

[0002] Air volume measurement devices are mainly used in land-based systems and hybrid collective protection systems. Air volume measurement devices are important equipment for NBC protection systems to measure the air volume of filtration in real time and provide feedback on air volume data. The air volume measurement device is mainly composed of an air volume measurement device housing, an air volume measuring body, and an air volume measurement control board, which includes a differential pressure sensor and a main control chip.

[0003] Traditional airflow measurement devices typically use flanges to connect to the pipes to be measured. However, when installing and fixing the device using a flange, it is necessary to ensure that the two flange surfaces are flat and to use specific tools to turn multiple flange bolts while ensuring that the bolts are tightened evenly, which is quite cumbersome. Therefore, the ease of installation and flexibility of existing airflow measurement devices can be further improved. Utility Model Content

[0004] To improve the ease and flexibility of installation of air volume measuring devices, this application provides an easy-to-install air volume measuring device.

[0005] The air volume measuring device provided in this application adopts the following technical solution: an air volume measuring device that is easy to install includes an air volume measuring tube, an air duct is provided on one side of the air volume measuring tube, an electrical control box is provided on the air volume measuring tube, an installation sleeve is fixedly sleeved on the air volume measuring tube, and a snap-fit ​​mechanism for positioning and installing the air volume measuring tube is provided in the installation sleeve.

[0006] The snap-fit ​​mechanism includes a mounting groove on one side of the mounting sleeve, a mounting plate fixedly mounted on the mounting groove, a U-shaped plate slidably mounted on the inner wall of one side of the mounting groove, rotating plates rotatably mounted on both sides of the U-shaped plate, a drive plate rotatably mounted on one side of each of the two rotating plates, a positioning block fixedly mounted on one side of each of the two drive plates, two connecting brackets symmetrically fixedly mounted on the duct, and one side of each connecting bracket located within the mounting groove, a connecting column fixedly mounted on the top of the U-shaped plate, and a pressing plate fixedly mounted on one end of the top of the connecting column penetrating the mounting sleeve.

[0007] By adopting the above technical solution, the pressing plate is driven to move downwards, which in turn moves the connecting column and the U-shaped plate downwards. The U-shaped plate moves downwards, which in turn causes the two rotating plates to rotate and push the two driving plates away from each other. This movement of the two driving plates away from each other causes the two positioning blocks to move away from each other as well, thereby positioning and installing the two connecting frames. Therefore, the positioning and installation of the air volume measuring tube can also be completed. This also facilitates the disassembly, replacement or maintenance of the air volume measuring device in the future, and improves the convenience and flexibility of the air volume measuring device during installation.

[0008] Preferably, two slots for mounting the connecting bracket are symmetrically provided on one side of the mounting plate. Two limiting slots are symmetrically provided in the mounting slots. Limiting blocks are slidably installed in both limiting slots, and both limiting blocks are fixedly connected to the corresponding positioning blocks.

[0009] By adopting the above technical solution, slots are provided to facilitate the positioning and installation of the connector.

[0010] Preferably, each of the two connecting frames has a slot on one side that is close to each other, and a locking block is slidably installed in each of the two slots. Each of the two locking blocks is fixedly connected to a corresponding positioning block.

[0011] By adopting the above technical solution and setting up card slots and card blocks, the positioning and installation function can be enhanced.

[0012] Preferably, two fixing posts are slidably sleeved on the U-shaped plate, and both fixing posts are fixedly installed in the mounting groove.

[0013] By adopting the above technical solution and setting two fixed columns, the U-shaped plate can be limited in its movement.

[0014] Preferably, a support frame is fixedly installed on the top of the mounting plate, an elongated column is fixedly installed on the support frame, and a reinforcing plate is slidably fitted on the elongated column.

[0015] By adopting the above technical solution and setting up a support frame, the installation can be assisted.

[0016] Preferably, a lifting screw is screwed onto the reinforcing plate, with one bottom end of the lifting screw rotatably mounted on the mounting plate and a knob fixedly mounted on one top end of the lifting screw.

[0017] By adopting the above technical solution, rotating the knob will drive the lifting screw to rotate, which in turn will move the reinforcing plate downward. The downward movement of the reinforcing plate can position and install the pressing plate, thereby preventing the pressing plate from moving and improving the stability of the positioning and installation.

[0018] Preferably, a rectangular groove is provided on the top of the pressing plate, and a rectangular block is slidably installed in the rectangular groove, and the rectangular block is fixedly connected to the reinforcing plate.

[0019] By adopting the above technical solution, the installation of the rectangular slot and rectangular block can be enhanced.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application employs a positioning block and the like, which, in conjunction with the action of the pressing plate, drives the pressing plate to move downwards. The downward movement of the pressing plate causes the connecting column and the U-shaped plate to move downwards as well. The downward movement of the U-shaped plate causes the two rotating plates to rotate, pushing the two driving plates away from each other. This movement of the two driving plates causes the two positioning blocks to move away from each other as well, thereby enabling the positioning and installation of the two connecting frames. Therefore, the positioning and installation of the air volume measuring tube can also be completed. This also facilitates the disassembly, replacement, or maintenance of the air volume measuring device in the future, and improves the convenience and flexibility of the air volume measuring device during installation.

[0022] 2. In this application, with the cooperation of reinforcing plates, etc., by rotating the knob, the rotation of the knob will drive the lifting screw to rotate, and the rotation of the lifting screw will drive the reinforcing plate to move downward. The downward movement of the reinforcing plate can position and install the pressing plate, thereby preventing the pressing plate from moving or other phenomena, thus improving the stability of the positioning and installation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an air volume measuring device that is easy to install, according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram illustrating the internal structure of the mounting sleeve, which is a key feature of this application.

[0025] Figure 3 This is an exploded view illustrating the snap-fit ​​structure, a key feature of this application's embodiments.

[0026] Figure 4 This is an exploded view illustrating the main reinforced structure in the embodiments of this application.

[0027] Reference numerals: 1. Air volume measuring tube; 2. Electrical control box; 3. Mounting sleeve; 4. Air duct; 5. Mounting groove; 6. Mounting plate; 7. Slot; 8. Connecting bracket; 9. Card slot; 10. Card block; 11. Positioning block; 12. Limiting groove; 13. Limiting block; 14. U-shaped plate; 15. Rotating plate; 16. Drive plate; 17. Fixed column; 18. Connecting column; 19. Pressing plate; 20. Reinforcing plate; 21. Support frame; 22. Knob; 23. Lifting screw; 24. Long column; 25. Rectangular groove; 26. Rectangular block. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0029] This application discloses an easy-to-install airflow measurement device.

[0030] Reference Figure 1-3 An easy-to-install airflow measurement device includes an airflow measurement tube 1, an air duct 4 disposed on one side of the airflow measurement tube 1, an electrical control box 2 disposed on the airflow measurement tube 1, the airflow measurement tube 1 is provided with a control PCB and a ventilation grille, the airflow is calculated by collecting the pressure difference in the air duct 4 through the chip on the control PCB, and the airflow information is transmitted to the system controller in real time via CAN bus, so that the airflow can be measured, a snap-fit ​​mechanism disposed on the airflow measurement tube 1 for positioning and installation of the airflow measurement tube 1, and a reinforcing mechanism disposed on the snap-fit ​​mechanism;

[0031] The snap-fit ​​mechanism includes a mounting sleeve 3 fixedly sleeved on the air volume measuring tube 1, a mounting groove 5 opened on one side of the mounting sleeve 3, a mounting plate 6 fixedly installed on the mounting groove 5, a U-shaped plate 14 slidably installed on the inner wall of one side of the mounting groove 5, two rotating plates 15 rotatably installed on both sides of the U-shaped plate 14, two driving plates 16 rotatably installed on one side of the two rotating plates 15, two positioning blocks 11 fixedly installed on one side of the two driving plates 16, two connecting brackets 8 symmetrically fixedly installed on the air duct 4, with one side of each of the two connecting brackets 8 located inside the mounting groove 5, a connecting column 18 fixedly installed on the top of the U-shaped plate 14, and one end of the top of the connecting column 18 penetrating the mounting sleeve 3 and fixedly installed with a pressing plate 19.

[0032] The snap-fit ​​mechanism also includes slots 7 symmetrically opened on one side of the mounting plate 6 for mounting the two connecting brackets 8, two limiting slots 12 symmetrically opened in the mounting groove 5, two limiting blocks 13 slidably installed in the two limiting slots 12, and the two limiting blocks 13 are fixedly connected to the corresponding positioning blocks 11, two snap-fit ​​slots 9 opened on the side of the two connecting brackets 8 that are close to each other, two snap-fit ​​blocks 10 slidably installed in the two snap-fit ​​slots 9, and the two snap-fit ​​blocks 10 are fixedly connected to the corresponding positioning blocks 11, and two fixing posts 17 slidably sleeved on the U-shaped plate 14, and the two fixing posts 17 are fixedly installed in the mounting groove 5.

[0033] In use, the pressing plate 19 is driven to move downwards. The downward movement of the pressing plate 19 will also drive the connecting column 18 and the U-shaped plate 14 to move downwards. The downward movement of the U-shaped plate 14 will drive the two rotating plates 15 to rotate and push the two driving plates 16 away from each other. The two driving plates 16 moving away from each other will also drive the two positioning blocks 11 to move away from each other, thereby positioning and installing the two connecting frames 8. Therefore, the positioning and installation of the air volume measuring tube 1 can also be completed. It also facilitates the disassembly, replacement or maintenance of the air volume measuring device in the later stage, and improves the convenience and flexibility of the air volume measuring device installation.

[0034] Reference Figure 2-4 The reinforcing mechanism includes a support frame 21 fixedly installed on the top of the mounting sleeve 3, an elongated column 24 fixedly installed on the support frame 21, a reinforcing plate 20 slidably mounted on the elongated column 24, a lifting screw 23 screwed onto the reinforcing plate 20, with one bottom end of the lifting screw 23 rotatably mounted on the mounting sleeve 3, a knob 22 fixedly installed on one top end of the lifting screw 23, a rectangular groove 25 opened on the top of the pressing plate 19, and a rectangular block 26 slidably installed in the rectangular groove 25, with the rectangular block 26 fixedly connected to the reinforcing plate 20.

[0035] In use, by rotating the knob 22, the knob 22 will drive the lifting screw 23 to rotate. The rotation of the lifting screw 23 will drive the reinforcing plate 20 to move downward. The downward movement of the reinforcing plate 20 can position and install the pressing plate 19, thereby preventing the pressing plate 19 from moving or other phenomena, thus improving the stability of the positioning and installation.

[0036] The implementation principle of the easy-to-install air volume measuring device in this application embodiment is as follows: In use, the air volume measuring tube 1 is connected to the air duct 4, and a sealing ring is set in the middle. At this time, the two connecting brackets 8 on the air duct 4 will be inserted into the mounting sleeve plate 3 and located in the mounting groove 5. At this time, the pressing plate 19 can be driven to move downward. The pressing plate 19 moves downward and will drive the connecting column 18 and the U-shaped plate 14 to move downward as well. The U-shaped plate 14 moves downward and will drive the two rotating plates 15 to rotate, and push the two driving plates 16 away from each other. The two driving plates 16 move away from each other, which will drive the two positioning blocks 11 to move away from each other as well. Thus, the two connecting brackets 8 can be positioned and installed. Therefore, the positioning and installation of the air volume measuring tube 1 can also be completed. It is also convenient to disassemble, replace or maintain the air volume measuring device in the later stage, and improve the convenience and flexibility of the air volume measuring device during installation.

[0037] By rotating the knob 22, the knob 22 rotates, which in turn drives the lifting screw 23 to rotate. The rotation of the lifting screw 23 drives the reinforcing plate 20 to move downward. The downward movement of the reinforcing plate 20 can position and install the pressing plate 19, thereby preventing the pressing plate 19 from moving or other phenomena, thus improving the stability of the positioning and installation.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An easy-to-install airflow measuring device, comprising an airflow measuring tube (1), wherein an air duct (4) is provided on one side of the airflow measuring tube (1), and an electrical control box (2) is provided on the airflow measuring tube (1), characterized in that: The air volume measuring tube (1) is fixedly fitted with an installation sleeve (3), and the installation sleeve (3) is provided with a snap-fit ​​mechanism for positioning and installing the air volume measuring tube (1). The snap-fit ​​mechanism includes an installation groove (5) on one side of the installation sleeve (3), an installation plate (6) is fixedly installed on the installation groove (5), a U-shaped plate (14) is slidably installed on the inner wall of one side of the installation groove (5), a rotating plate (15) is rotatably installed on both sides of the U-shaped plate (14), a drive plate (16) is rotatably installed on one side of each of the two rotating plates (15), a positioning block (11) is fixedly installed on one side of each of the two drive plates (16), two connecting brackets (8) are symmetrically fixedly installed on the air duct (4), and one side of each of the two connecting brackets (8) is located in the installation groove (5), a connecting column (18) is fixedly installed on the top of the U-shaped plate (14), and one end of the top of the connecting column (18) passes through the installation sleeve (3) and is fixedly installed with a pressing plate (19).

2. The air volume measuring device that is easy to install according to claim 1, characterized in that: Two slots (7) for mounting the connecting bracket (8) are symmetrically opened on one side of the mounting plate (6). Two limiting slots (12) are symmetrically opened in the mounting slot (5). Limiting blocks (13) are slidably installed in both limiting slots (12). Both limiting blocks (13) are fixedly connected to the corresponding positioning blocks (11).

3. The air volume measuring device that is easy to install according to claim 1, characterized in that: Each of the two connecting frames (8) has a slot (9) on one side that is close to each other. Each of the two slots (9) has a slidable block (10) installed in it. Each of the two blocks (10) is fixedly connected to the corresponding positioning block (11).

4. The air volume measuring device that is easy to install according to claim 1, characterized in that: Two fixing posts (17) are slidably sleeved on the U-shaped plate (14), and both fixing posts (17) are fixedly installed in the mounting groove (5).

5. The air volume measuring device that is easy to install according to claim 1, characterized in that: A support frame (21) is fixedly installed on the top of the mounting plate (3), and a long column (24) is fixedly installed on the support frame (21). A reinforcing plate (20) is slidably fitted on the long column (24).

6. The air volume measuring device that is easy to install according to claim 5, characterized in that: A lifting screw (23) is screwed onto the reinforcing plate (20). The bottom end of the lifting screw (23) is rotatably mounted on the mounting sleeve plate (3), and a knob (22) is fixedly mounted on the top end of the lifting screw (23).

7. The air volume measuring device that is easy to install according to claim 6, characterized in that: The top of the pressing plate (19) is provided with a rectangular groove (25), and a rectangular block (26) is slidably installed in the rectangular groove (25). The rectangular block (26) is fixedly connected to the reinforcing plate (20).

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