CN211177328U - Static pressure box for clean place - Google Patents
Static pressure box for clean place Download PDFInfo
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- CN211177328U CN211177328U CN201921768484.9U CN201921768484U CN211177328U CN 211177328 U CN211177328 U CN 211177328U CN 201921768484 U CN201921768484 U CN 201921768484U CN 211177328 U CN211177328 U CN 211177328U
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Abstract
The utility model provides a static pressure case for clean place, including the box, the bottom half is installed and is spilt the board, and box one side is equipped with the transmission blast gate of taking adjusting device, adjusting device is including the adjust knob who installs in the bottom half, the transmission shaft that has drive nut who is connected with adjust knob, the control flap that passes through the connecting rod with drive nut and be connected, and the connecting rod is articulated with transmission shaft, control flap, and the blade axle of transmission blast gate stretches out from one side of box, and the control flap is connected with the blade axle is fixed, the box still is equipped with filter equipment; the utility model discloses an adjust knob of adjustment bottom half can realize the accurate regulation to the amount of wind, and does not need the professional to get into the furred ceiling and adjust, convenient operation.
Description
Technical Field
The utility model relates to a static pressure case, concretely relates to static pressure case for clean place.
Background
The static pressure box is a necessary accessory of an air supply system, and mainly has the main functions of reducing noise and increasing air supply distance, air molecules can irregularly move after entering the static pressure box to impact a pipe wall to generate static pressure, the static pressure is also generated in the direction perpendicular to the movement direction of fluid when the air is static and flows, and the static pressure is compared with the dynamic pressure before entering the static pressure box, so that the air flow speed is reduced, the wind noise is reduced, the wind is blown farther, the wind distribution is more uniform and stable, and the air supply effect is ideal.
The air supply airflow organization and the pressure distribution in the clean place greatly influence the cleanliness of the air environment, how to ensure reasonable pressure distribution enables the cleanliness of the clean place to be higher, and besides accurate air balance calculation, accurate adjusting means for air supply and return of the static pressure box are required. When the traditional static pressure box is used, an air volume adjusting device mainly depends on is a manual folio multi-blade adjusting valve, the adjusting valve is not accurate enough in adjusting the air volume, and long period time is usually needed when the target air volume is adjusted; the static pressure case is generally installed at indoor top, and when traditional static pressure case was carried out the amount of wind and is adjusted, still need operating personnel to get into the furred ceiling from the access way specially and adjust, and is more troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can conveniently and accurately adjust the clean place of the amount of wind and use static pressure case.
The purpose of the utility model is realized through the following technical scheme:
the static pressure box comprises a box body, wherein an air inlet is formed in one side of the box body, an air outlet is formed in the bottom of the box body, a flow dispersing plate is installed on the air outlet, a transmission air valve with an adjusting device is installed at the position of the air inlet of the box body, the adjusting device comprises an adjusting knob installed in the air outlet in the bottom of the box body and a transmission shaft connected with the adjusting knob and provided with a transmission nut, a blade shaft of the transmission air valve extends out of one side of the box body, an adjusting sheet is fixed on the blade shaft, two ends of a connecting rod are hinged to the transmission nut and the adjusting sheet respectively, and a filtering device.
Furthermore, a limiting surface is formed on one side of the blade shaft in a cutting mode, and a connecting point of the connecting rod and the adjusting sheet is arranged near the limiting surface.
Furthermore, a silencing sheet is arranged in the box body, and a silencing cavity with the thickness of more than or equal to 20mm is formed between the silencing sheet and the inner wall of the box body.
Furthermore, the thickness of the silencing sheet is more than or equal to 1mm, and the diameter of the silencing sheet is 1-2 mm.
Further, the silencing sheet is a galvanized steel sheet.
Furthermore, the filtering device is a filter arranged at a position close to the air outlet of the box body.
Further, the flow dispersing plate is a diffusion hole plate provided with a plurality of diffusion holes.
Further, the diffusion orifice plate is an aluminum alloy plate.
Furthermore, the diffusion holes of the diffusion hole plate are uniformly distributed in a staggered manner.
The utility model discloses compare and have following beneficial effect in prior art:
the utility model discloses a twist the adjust knob of static pressure bottom of the case portion soon, can make drive nut up-and-down motion along with the rotation of transmission shaft, drive nut drives the adjustment sheet through the connecting rod and rotates, and the adjustment sheet rotates and drives the blade axle rotation of transmission blast gate, realizes the regulation to the amount of wind, and operating personnel need not get into the furred ceiling from the access way specially and adjusts the amount of wind, only need the adjust knob of knob static pressure bottom of the case portion can, adjust the amount of wind simple and convenient; on the other hand, the blade shaft of the transmission air valve is indirectly driven by the transmission shaft to rotate, and the displacement of the transmission shaft driving the transmission nut to move longitudinally when the adjusting knob is screwed is smaller, so that the blade shaft of the transmission air valve rotates slightly, and accurate adjustment can be realized.
Furthermore, after the limiting surface is contacted with the transmission shaft, the transmission shaft can be limited to continue rotating, so that the blade shaft of the transmission air valve is indirectly limited to continue moving, and the blade shaft is prevented from continuing rotating to damage the blade of the transmission air valve when the blade shaft completely opens or closes the blade of the transmission air valve.
Furthermore, a silencing cavity is arranged on the inner side of the box body to reduce noise in the transmission air valve.
Furthermore, the thickness of the silencing sheet is more than or equal to 1mm, the diameter of the opening is 1-2 mm, the punching rate is 1.0%, and secondary noise is not easy to generate.
Furthermore, the rigidity of the galvanized steel sheet silencing piece is enough, the galvanized steel sheet silencing piece is not easy to deform, the silencing effect is not influenced, and meanwhile, the galvanized steel sheet can also prevent the steel sheet from rusting, so that the service life is prolonged.
Furthermore, the filter arranged on the air outlet of the box body can pre-filter the air to improve the cleanliness of the air.
Furthermore, the diffusion orifice plate that the bottom half was equipped with makes the wind of blowing out more even, and the difficult deposition of diffusion orifice plate, easy clearance is fit for clean place.
Furthermore, the diffusion pore plate is an aluminum alloy diffusion pore plate which is light in weight and easy to form.
Furthermore, the holes of the diffusion pore plate are uniformly distributed in a staggered manner, so that the noise of the sent wind is smaller.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the adjustment device;
in the figure: 1-a box body; 2-silencing sheet; 3-a diffusion orifice plate; 4-a filter; 5-adjusting knob; 6-driving air valve; 7-a regulating device; 8-a transmission shaft; 9-a drive nut; 10-a connecting rod; 11-a conditioning sheet; 12-an air outlet; 13-a silencing cavity; 14-a vane shaft; 15-limiting surface.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments:
as shown in fig. 1, the utility model discloses a special static pressure case in clean place main component includes box 1, box 1 installs in indoor furred ceiling, the air intake has been seted up to box 1 one side, box 1 bottom is equipped with air outlet 12, the transmission air valve 6 of taking adjusting device 7 is installed in the air intake position, blast pipe and air intake intercommunication, the blade axle 14 of transmission air valve 6 stretches out from box 1 one side, the blade of transmission air valve 6 is being connected to blade axle 14, the blade can rotate along with the rotation of blade axle 14, thereby reach the mesh of adjusting the amount of wind, blast pipe and air intake intercommunication, the incoming air spreads into inside box 1 through transmission air valve 6, discharge from the air outlet 12 of box 1 bottom again.
As shown in fig. 2 and fig. 3, the utility model discloses an adjusting device 7 is including installing near 1 bottom air outlet 12's of box adjusting knob 5, the setting is at the transmission shaft 8 of 1 outside one side of box, adjusting knob 5 is connected with transmission shaft 8, rotate adjusting knob 5 then transmission shaft 8 also rotates thereupon, threaded connection has drive nut 9 on the transmission shaft 8, drive nut 9 passes through connecting rod 10 with adjustment sheet 11 and is connected, connecting rod 10 and drive nut 9, the adjustment sheet is articulated or through pin swing joint, adjustment sheet 11 and the 14 fixed connection of blade axle of transmission blast gate 6. From this, adjust the adjust knob 5 of installing near box 1 bottom air outlet 12, transmission shaft 8 rotates along with adjust knob 5, and drive nut 9 reciprocates on transmission shaft 8 and takes place the displacement to drive adjustment sheet 11 through the connecting rod and rotate, adjustment sheet 11 drives blade axle 14 and rotates, and blade axle 14 drives the blade rotation of transmission blast gate 6, reaches the purpose of adjusting the amount of wind, because drive nut 9 is less at the displacement on transmission shaft 8, consequently adjusts the amount of wind accuracy.
In order to avoid that the blade shaft 14 continues to rotate when the blade of the transmission air valve 6 is completely opened or closed, so that the blade of the transmission air valve 6 is damaged, the rotation of the blade shaft 14 needs to be limited, a limiting surface 15 is formed on one side of the blade shaft 14 extending out of the box body 1 in a cutting mode, the limiting surface 15 is arranged near the connecting position of the connecting rod 10 and the adjusting sheet 11, when the blade of the transmission air valve 6 is completely opened or closed, the limiting surface 15 is convenient for the connecting position of the transmission shaft 8, the transmission shaft 8 is prevented from continuing to rotate, so that the blade shaft 14 is prevented from continuing to rotate, and the purposes of limiting the movement of the blade shaft 14 and protecting the blade of the transmission air valve 6 are achieved.
In order to make the utility model have good noise reduction effect and reduce noise, the inner wall of the box body 1 is provided with the noise reduction sheet 2, and a noise reduction cavity 13 with the thickness more than or equal to 20cm is formed between the noise reduction sheet 2 and the inner wall of the box body 1; in order to make the silencing sheet have better effect, the preferred thickness of the silencing sheet is more than or equal to 1mm, and the diameter of the silencing sheet is 1-2 mm; in order to ensure that the silencing sheet has enough rigidity and is not easy to deform to influence the silencing effect, the silencing sheet is preferably a galvanized steel sheet, the galvanized steel sheet can also prevent rusting, and the service cycle is long.
The utility model discloses still including filter equipment and board that looses, for convenient unpick and wash and change filter equipment, filter equipment is preferably the filter 4 that sets up under 1 bottom air outlet 12 of box, and for making the scattered flow effect of board that looses better, the air-out is more even, and looses the difficult deposition of board itself, more suitable clean place, the board that looses is preferably the diffusion orifice plate 3 that is equipped with a plurality of holes, the diffusion orifice plate material is preferably the light, easy fashioned aluminum alloy plate of quality, the even crisscross distribution of diffusion orifice plate 3.
The utility model discloses a theory of operation: wind enters the box body 1 from the transmission air valve 6 and irregularly collides with the inner wall of the box body 1 to generate static pressure, so that the flow rate of the wind is slowed down, the wind noise is reduced, the noise of the wind is further reduced by the silencing pieces 2, and the wind sequentially passes through the air outlet 12, is filtered by the filter 4 and is discharged out of the static pressure box through the aluminum alloy diffusing pore plate. When the air volume is regulated, the diffusion pore plate 3 is directly opened, the filter 4 is detached, the regulating knob 5 is screwed, the transmission shaft 8 rotates along with the transmission shaft 8, the transmission nut 9 longitudinally displaces along with the rotation of the transmission shaft 8, the transmission nut drives the regulating sheet 11 to rotate through the connecting rod 10, the blade shaft 14 rotates along with the regulating sheet 11, the air volume can be regulated, a professional does not need to enter a suspended ceiling for regulation, the operation is convenient, when the blades of the transmission air valve 6 are completely opened or closed, the limiting surface 15 of the blade shaft 14 contacts with the transmission shaft 8, the transmission shaft 8 is limited to continue rotating, and the continuous rotation of the blade shaft 14 is limited; because the displacement of the transmission nut 9 is very small when the adjusting knob 5 is screwed every time, the rotation of the adjusting sheet 11 is also very small, the amplitude of the rotation of the driving blade shaft 14 is small, the change of the air volume is small, and the accurate adjustment of the air volume is realized.
Claims (9)
1. A static pressure case for clean place which characterized in that: the air inlet is formed in one side of the box body (1), the air outlet (12) is formed in the bottom of the box body, a flow dispersing plate is installed on the air outlet, the transmission air valve (6) with the adjusting device (7) is installed in the air inlet of the box body (1), the adjusting device (7) comprises an adjusting knob (5) installed in the air outlet in the bottom of the box body (1), a transmission shaft (8) which is connected with the adjusting knob (5) and provided with a transmission nut (9), a blade shaft (14) of the transmission air valve (6) extends out of one side of the box body (1), an adjusting sheet (11) is fixed on the blade shaft (14), two ends of a connecting rod (10) are hinged to the transmission nut (9) and the adjusting sheet (11) respectively, and a filtering device is further arranged in the box body (1).
2. The plenum box of claim 1, wherein: one side of the blade shaft (14) is cut to form a limiting surface (15), and a connecting point of the connecting rod (10) and the adjusting sheet (11) is arranged near the limiting surface (15).
3. The plenum box of claim 1, wherein: the box body (1) is internally provided with a silencing sheet (2), and a silencing cavity (13) with the thickness of more than or equal to 20mm is formed between the silencing sheet (2) and the inner wall of the box body (1).
4. A plenum box according to claim 3, wherein: the thickness of the silencing sheet (2) is more than or equal to 1mm, and the diameter of the silencing sheet is 1-2 mm.
5. The plenum box of claim 4, wherein: the silencing sheet (2) is a galvanized steel sheet.
6. The plenum box of claim 1, wherein: the filtering device is a filter (4) arranged at a position close to the air outlet (12) of the box body (1).
7. The plenum box of claim 1, wherein: the flow dispersing plate is a diffusion pore plate (3) provided with a plurality of diffusion pores.
8. The plenum box of claim 7, wherein: the diffusion pore plate (3) is an aluminum alloy plate.
9. The plenum box of claim 7 or 8, wherein: the diffusion holes of the diffusion hole plate (3) are uniformly distributed in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768484.9U CN211177328U (en) | 2019-10-21 | 2019-10-21 | Static pressure box for clean place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768484.9U CN211177328U (en) | 2019-10-21 | 2019-10-21 | Static pressure box for clean place |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211177328U true CN211177328U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921768484.9U Active CN211177328U (en) | 2019-10-21 | 2019-10-21 | Static pressure box for clean place |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211177328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538306A (en) * | 2023-07-07 | 2023-08-04 | 中国建筑第六工程局有限公司 | Hanging ceiling decoration type air valve adjusting device for ventilation |
-
2019
- 2019-10-21 CN CN201921768484.9U patent/CN211177328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538306A (en) * | 2023-07-07 | 2023-08-04 | 中国建筑第六工程局有限公司 | Hanging ceiling decoration type air valve adjusting device for ventilation |
| CN116538306B (en) * | 2023-07-07 | 2023-09-01 | 中国建筑第六工程局有限公司 | Hanging ceiling decoration type air valve adjusting device for ventilation |
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