CN213932700U

CN213932700U - Air flow detection device

Info

Publication number: CN213932700U
Application number: CN202023349982.5U
Authority: CN
Inventors: 吴基; 王进勇; 梁金田; 何维维; 杨阳; 蒋敏
Original assignee: Shenzhen Shenke Engineering Testing Co ltd
Current assignee: Shenzhen Shenke Engineering Testing Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-10
Anticipated expiration: 2030-12-31

Abstract

The application relates to an air flow detection device, it includes that both ends are the casing that the opening set up, set up in the first perforated plate and the second perforated plate of casing inner chamber, according to the air flow order the casing inner chamber forms static pressure chamber, detection room and exhaust chamber, the air intake of being connected with fan-coil unit is seted up to the casing, static pressure chamber in-connection has clearance mechanism, clearance mechanism arranges the brush of bull stick, clearance static pressure chamber in the static pressure chamber and connects the bull stick in the drive assembly of brush in rotating one end through the air intake. This application has the bull stick to drive the brush and rotates to make the brush clearance static pressure room, be convenient for keep the static pressure room clean, can take out clearance mechanism when needing to detect the amount of wind, clear up the simple and convenient effect in static pressure room.

Description

Air flow detection device

Technical Field

The application relates to the field of flow detection, in particular to an air flow detection device.

Background

The fan coil unit is an application product in terminal equipment in the air conditioning field, and in order to detect the performance of the fan coil unit, an air flow device is often used for detecting the air volume of the fan coil unit.

The air flow device comprises a shell, a first perforated plate and a second perforated plate, wherein the first perforated plate and the second perforated plate are arranged in the inner cavity of the shell, the inner cavity of the shell is divided into a static pressure chamber, a detection chamber and an exhaust chamber by the first perforated plate and the second perforated plate, a flow nozzle is arranged in the measurement chamber, and a fan is arranged in the exhaust chamber. The fan coil unit is connected with the static pressure chamber, the fan coil unit enables airflow to flow into the static pressure chamber, pass through the measuring chamber and be discharged from the exhaust chamber, and the air volume of the fan coil unit is calculated by measuring the front-back pressure difference of the flow nozzle.

In view of the above-mentioned related art, the inventor believes that the static pressure chamber is communicated with the outside, and when the static pressure chamber works for a long time or is idle, dust is easy to enter the static pressure chamber, and the cleaning is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to clean the static pressure chamber simply and quickly, the air flow detection device is provided.

The application provides an air flow detection device adopts following technical scheme:

the utility model provides an air flow detection device, includes that both ends are the casing that the opening set up, set up in the first perforated plate and the second perforated plate of casing inner chamber, according to the air flow order the casing inner chamber forms static pressure chamber, detection room and exhaust chamber, the air intake of being connected with fan-coil unit is seted up to the casing, static pressure chamber in-connection has clearance mechanism, clearance mechanism is including rotating the one end and arranging the bull stick in the static pressure chamber through the air intake, the brush of clearance static pressure chamber and the drive assembly who is connected bull stick and brush.

Through adopting above-mentioned technical scheme, the bull stick drives the brush and rotates to make the brush clearance static pressure chamber, be convenient for keep the static pressure chamber clean, can take out clearance mechanism when needing to detect the amount of wind, clearance static pressure chamber is simple and convenient.

Optionally, the transmission assembly includes that the connection slides in the ring that slides of bull stick, rotate and connect in a plurality of first connecting rods of the ring that slides and rotate and connect in a plurality of second connecting rods of bull stick, first connecting rod is kept away from the ring one end that slides and is rotated and connect in the second connecting rod and keep away from bull stick one end, the brush sets up in first connecting rod and keeps away from ring one end that slides.

Through adopting above-mentioned technical scheme, the ring that slides along bull stick length direction to under the second connecting rod effect, the first connecting rod takes place to rotate, thereby the distance of bull stick one end apart from the bull stick is kept away from to the adjustment first connecting rod, makes the brush butt in static pressure chamber lateral wall, and the bull stick of being convenient for rotates and clears up the static pressure chamber lateral wall.

Optionally, the rotating rod is rotatably connected with a sealing ring, and the sealing ring seals the air inlet.

Through adopting above-mentioned technical scheme, the sealing ring blocks that the dust gets into in the static pressure chamber to keep the static pressure chamber clean.

Optionally, the sliding ring is arranged in the inner cavity of the shell, one end, close to the sliding ring, of the sealing ring is coaxially and rotatably connected with a rotating ring, one end, close to the sliding ring, of the rotating ring is fixedly provided with a fixing rod, and one end, far away from the rotating ring, of the fixing rod is fixedly arranged on the sliding ring.

Through adopting above-mentioned technical scheme, remove the sealing ring and can drive the slip ring and remove to can adjust the interval of brush apart from the bull stick when adjusting the sealing ring, the brush of being convenient for clears up the static pressure chamber.

Optionally, a positioning hole matched with the rotating rod is formed in the side wall of the static pressure chamber, which is far away from the air inlet.

Through adopting above-mentioned technical scheme, the locating hole is arranged in to bull stick one end to the bull stick rotates more stably, is convenient for the brush clearance static pressure chamber.

Optionally, a handle convenient for the rotation of the rotating rod is fixed at one end of the rotating rod far away from the static pressure chamber.

Through adopting above-mentioned technical scheme, the handle increases operating personnel's area of contact, the simpler commentaries on classics pole that rotates of operating personnel of being convenient for.

Optionally, a sealing ring is connected to the housing to seal the opening at the static pressure chamber.

Through adopting above-mentioned technical scheme, the sealing washer is sealed with the opening that the static pressure chamber is right, reduces in the dust gets into the static pressure chamber to keep the static pressure chamber clean.

Optionally, a positioning ring abutting against the outer side wall of the housing is coaxially fixed to one end, away from the static pressure chamber, of the sealing ring.

Through adopting above-mentioned technical scheme, the holding ring blocks that the sealing ring gets into the static pressure chamber through the air intake to the sealing ring can stably block dust and get into the static pressure chamber.

Optionally, a sliding groove is formed in the rotating rod along the length direction of the rotating rod, a sliding block is fixed to the inner cavity of the rotating ring, and the sliding block is connected to the sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, the sliding block is located the groove that slides, prescribes a limit to the displacement range of rotating ring to prescribe a limit to the displacement range of sliding ring, and enable the rotating ring process of sliding stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the rotating rod drives the brush to rotate, so that the static pressure chamber is cleaned, and the cleaning process is simple and rapid.

2. Through the rotating rod of the slip ring edge, and the first connecting rod is in the in-process that removes under the second connecting rod effect, and the first connecting rod is kept away from slip ring one end and is taken place to rotate, thereby adjusts the interval between brush and the rotating rod, and the brush clearance static pressure chamber of being convenient for can take out clearance mechanism from the static pressure chamber.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram showing a cleaning mechanism and drive assembly according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of an embodiment of the present application showing A in FIG. 2.

Description of reference numerals:

1. a housing; 11. a first perforated plate; 111. a first communication hole; 12. a second perforated plate; 121. a second communication hole; 13. a static pressure chamber; 14. a detection chamber; 15. an exhaust chamber; 16. an air inlet; 17. positioning holes; 18. a seal ring; 2. a cleaning mechanism; 21. a rotating rod; 211. a sliding groove; 22. a brush; 23. a handle; 3. a transmission assembly; 31. a slip ring; 32. a first link; 33. a second link; 34. a seal ring; 35. a rotating ring; 351. a sliding block; 36. fixing the rod; 4. rotating the block; 5. a positioning ring; 6. a flow nozzle; 7. a connecting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses an air flow detection device, which can be used for simply and conveniently cleaning dust in a static pressure chamber 13.

Referring to fig. 1, the portable electronic device includes a housing 1, a first perforated plate 11 and a second perforated plate 12, two ends of the housing 1 are provided with openings, the first perforated plate 11 and the second perforated plate 12 are welded and fixed in an inner cavity of the housing 1, and the housing 1 forms three chambers, according to the flow direction of the air flow, the three chambers are a static pressure chamber 13, a detection chamber 14 and an exhaust chamber 15, a flow nozzle 6 is provided in the detection chamber 14, a first communication hole 111 communicating the static pressure chamber 13 with the detection chamber 14 is penetrated through the first perforated plate 11, a second communication hole 121 communicating the static pressure chamber 13 with the exhaust chamber 15 is penetrated through the second perforated plate 12, and a fan is provided in the exhaust chamber 15.

Referring to fig. 2, an air inlet 16 is formed in the outer side wall of the housing 1, and the air inlet 16 is communicated with the static pressure chamber 13 and is used for being connected with a fan coiler. In order to clean the inner cavity of the static pressure chamber 13 simply and conveniently, the shell 1 is connected with a cleaning mechanism 2, the cleaning mechanism 2 comprises a rotating rod 21, a brush 22 and a transmission assembly 3, a positioning hole 17 is formed in the side wall, far away from the air inlet 16, of the static pressure chamber 13, one end of the rotating rod 21 is arranged in the positioning hole 17 through the air inlet 16, and the other end of the rotating rod 21 is arranged outside the shell 1. The transmission component 3 comprises a sliding ring 31, a plurality of first connecting rods 32 and a plurality of second connecting rods 33, the sliding ring 31 is connected to the rotating rods 21 in a sliding mode, the sliding ring 31 is located in the static pressure chamber 13, the first connecting rods 32 are connected to the sliding ring 31 in a rotating mode, and the rotating rods 21 are arranged along the axis of the sliding ring 31 in the circumferential direction. The rotating rod 21 is coaxially fixed with a connecting block 7 at one end close to the positioning hole 17, a plurality of second connecting rods 33 are circumferentially and rotatably connected to the connecting block 7, and one ends of the second connecting rods 33, far away from the connecting block 7, are rotatably connected to one ends of the first connecting rods 32, far away from the sliding ring 31.

Referring to fig. 2, the rotating block 4 is fixedly welded at one end of the first connecting rod 32, which is far away from the sliding ring 31, the brush 22 is disposed on the side wall of the rotating block 4, which is far away from the first connecting rod 32, one end of the rotating rod 21 is disposed in the positioning hole 17, the sliding ring 31 moves towards the positioning hole 17, and one end of the first connecting rod 32, which is close to the brush 22, moves towards the direction far away from the rotating rod 21, so as to increase the distance between the brush 22 and the rotating rod 21, until the brush 22 abuts against the side wall of the static pressure chamber 13, the rotating rod 21 is rotated to enable the brush 22 to clean dust in the static pressure chamber 13.

Referring to fig. 2, the rotary rod 21 is slidably connected with a sealing ring 34, the rotary rod 21 is axially overlapped with the sealing ring 34, and the rotary rod 21 rotates along the sealing ring 34. The outer side wall of the sealing ring 34 abuts against the inner side wall of the air inlet 16, so that the air inlet 16 is sealed and dust is prevented from entering the static pressure chamber 13. The outer side wall of the sealing ring 34 is fixed with a positioning ring 5, and the positioning ring 5 abuts against the side wall of the shell so as to block the sealing ring 34 from entering the static pressure chamber 13.

Referring to fig. 2 and 3, the side wall of the sealing ring 34 close to the sliding ring 31 is rotatably connected with a rotating ring 35, the axis of the rotating ring 35 coincides with the axis of the sealing ring 34, the side wall of the rotating ring 35 close to the sliding block 351 is fixedly welded with a plurality of fixing rods 36, the plurality of fixing rods 36 are circumferentially arranged along the axis of the rotating ring 35, and one end, far away from the rotating ring 35, of each fixing rod 36 is fixedly welded on the sliding ring 31. The rotating rod 21 is placed in the positioning hole 17, the sealing ring 34 slides towards the positioning hole 17, so that the sliding ring 31 is driven to move towards the positioning hole 17, the brush 22 moves towards the direction far away from the rotating rod 21, when the positioning ring 5 abuts against the outer side wall of the shell 1, the brush 22 abuts against the inner cavity of the static pressure chamber 13, the rotating rod 21 is rotated to clean the static pressure chamber 13, and the process of cleaning the static pressure chamber 13 is simpler and more convenient.

Referring to fig. 2 and 3, the rotating rod 21 is provided with a sliding groove 211 along the length direction thereof, a sliding block 351 is welded and fixed on the inner side wall of the rotating ring 35, and the sliding block 351 is connected to the sliding groove 211 in a sliding manner, so that the sliding stroke of the rotating ring 35 can be limited, and the sliding process of the sliding ring 31 can be more stable.

Referring to fig. 2, a handle 23 is welded and fixed at one end of the rotating rod 21, which is far away from the positioning hole 17, the rotating rod 21 can rotate more conveniently through the handle 23, the shell 1 is further connected with a sealing ring 18, the sealing ring 18 and an opening of the shell 1, which is located at the static pressure chamber 13, are in inserted connection and matching, the shell 1 is sealed through the sealing ring 18, dust is reduced from entering the static pressure chamber 13, and the static pressure chamber 13 is kept clean.

The implementation principle of the air flow detection device in the embodiment of the application is as follows: when the detection device is idle, one end of the rotating rod 21, which is far away from the handle 23, is inserted into the positioning hole 17, the sealing ring 34 is moved towards the positioning hole 17 until the sealing ring 34 is arranged at the air inlet 16, the sliding ring 31 is pushed to move towards the positioning hole 17 in the moving process of the sealing ring 34, so that one end of the first rotating rod 21, which is far away from the sealing ring 34, rotates towards the direction far away from the rotating rod 21, and the brush 22 abuts against the side wall of the static pressure chamber 13. Then the rotating rod 21 is rotated to enable the brush 22 to clean the static pressure chamber 13, and the rotating rod 21 is rotated and simultaneously pushes the rotating rod to repeatedly move along the length direction, thereby increasing the cleaning range of the brush 22. When the amount of wind of fan-coil unit needs to be detected, sealing ring 34 moves towards the direction away from positioning hole 17, sealing ring 34 separates from air inlet 16, and drives first connecting rod 32 to keep away from that one end of slip ring 31 is close to towards rotating rod 21, thereby directly taking out cleaning mechanism 2 from the sealed chamber, then connecting fan-coil unit with air inlet 16 and taking off sealing ring 18, thereby detecting.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An air flow rate detection device characterized in that: the fan-coil unit static pressure cleaning device comprises a shell (1) with two ends provided with openings, a first perforated plate (11) and a second perforated plate (12) which are arranged in an inner cavity of the shell (1), wherein the inner cavity of the shell (1) forms a static pressure chamber (13), a detection chamber (14) and an exhaust chamber (15) according to the air flow sequence, an air inlet (16) connected with a fan-coil unit is formed in the shell (1), a cleaning mechanism (2) is connected in the static pressure chamber (13), the cleaning mechanism (2) comprises a rotating rod (21) with one end arranged in the static pressure chamber (13) through the air inlet (16), a brush (22) for cleaning the static pressure chamber (13) and a transmission assembly (3) for connecting the rotating rod (21) with the brush (22).

2. An air flow rate detecting device according to claim 1, characterized in that: drive assembly (3) including slide connect in the slip ring (31) of bull stick (21), rotate connect in a plurality of first connecting rod (32) of slip ring (31) and rotate and connect in a plurality of second connecting rod (33) of bull stick (21), first connecting rod (32) are kept away from slip ring (31) one end and are rotated and connect in second connecting rod (33) and keep away from bull stick (21) one end, brush (22) set up in first connecting rod (32) and keep away from slip ring (31) one end.

3. An air flow rate detecting device according to claim 2, characterized in that: the rotating rod (21) is rotatably connected with a sealing ring (34), and the air inlet is blocked by the sealing ring (34).

4. An air flow rate detecting device according to claim 3, characterized in that: casing (1) inner chamber is arranged in to slip ring (31), sealing ring (34) are close to slip ring (31) one end coaxial rotation and are connected with swivel becket (35), swivel becket (35) are close to slip ring (31) one end and are fixed with dead lever (36), dead lever (36) are kept away from swivel becket (35) one end and are fixed in slip ring (31).

5. An air flow rate detecting device according to claim 1, characterized in that: and a positioning hole (17) matched with the rotating rod (21) is formed in the side wall of the static pressure chamber (13) far away from the air inlet (16).

6. An air flow rate detecting device according to claim 1, characterized in that: and a handle (23) which is convenient for the rotation of the rotating rod (21) is fixed at one end of the rotating rod (21) far away from the static pressure chamber (13).

7. An air flow rate detecting device according to claim 1, characterized in that: the shell (1) is connected with a sealing ring (18) which seals an opening at the static pressure chamber (13).

8. An air flow rate detecting device according to claim 3, characterized in that: and one end of the sealing ring (34) far away from the static pressure chamber (13) is coaxially fixed with a positioning ring (5) abutted against the outer side wall of the shell (1).

9. An air flow rate detecting device according to claim 4, characterized in that: the rotating rod (21) is provided with a sliding groove (211) along the length direction of the rotating rod, a sliding block (351) is fixed in the inner cavity of the rotating ring (35), and the sliding block (351) is connected to the sliding groove (211) in a sliding mode.