CN207094934U - A kind of square regulating valve of trench air draft - Google Patents
A kind of square regulating valve of trench air draft Download PDFInfo
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- CN207094934U CN207094934U CN201720993257.0U CN201720993257U CN207094934U CN 207094934 U CN207094934 U CN 207094934U CN 201720993257 U CN201720993257 U CN 201720993257U CN 207094934 U CN207094934 U CN 207094934U
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- screw rod
- threaded screw
- regulating valve
- trench
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Abstract
The utility model discloses a kind of square regulating valve of trench air draft, including fixation axis in rectangular-shaped housing, through the threaded screw rod of fixed axis and the rotation hand wheel of threaded screw rod top connection；Two rectangular paddles are articulated and connected and are symmetrical arranged with fixed axis；It is connected in the middle part of the threaded screw rod with rectangular paddle by rod hinge connection, threaded screw rod is hinged with connecting rod by driving shaft, and connecting rod is hinged with rectangular paddle by driven shaft.The utility model is nested to be arranged on the buried rectangular air duct of ground air exhausting grille bottom, blade opening can be adjusted by rotation hand wheel by removing air exhausting grille, the effective regulation and control of air exhausting grille air quantity can be achieved on the ground, and then cause whole exhaust system Effec-tive Function, solve trench exhaust system regulating valve installation inconvenience, the problem that regulation is difficult, operational effect is bad.
Description
Technical field
It the utility model is related to trench air draft technical field, and in particular to a kind of square regulating valve of trench air draft.
Background technology
By taking automobile plant's detection line as an example, motor vehicle reach the standard grade detection when each station is typically driven into low speed, and when being examined
It is in idling operation, some are in accelerating mode more.Within inspected some minutes, substantial amounts of motor vehicle exhaust emission is detecting
On line, its Main Ingredients and Appearance is that hydrocarbon, oxynitrides, carbon monoxide, sulfur dioxide, lead-containing compounds etc. have to human body
Evil gas.Complete because the detection work of line upper part still needs to human users, therefore in time discharge motor vehicle exhaust gases, be operator
It is particularly important that member builds acceptable air quality.
The forms for using trench mechanical exhaust of detection line ventilation at present, pass through detection line ground air draft steel grating, trench more
Motor vehicle exhaust gases are drained into outdoor by air channel, blower fan etc..Because exhaust system critical piece is located at subsurface, inconvenience sets regulation
Valve, cause trench ventilation effect bad, detection line air quality is poor.
Utility model content
The purpose of this utility model is to be directed to technological deficiency present in prior art, and is provided a kind of for trench machinery
Trench air draft in exhaust system is arranged on buried rectangular air duct, under the air exhausting grille of ground with square regulating valve, nesting, can be real
Effective control of existing air exhausting grille air quantity and regulation.
Technical scheme is used by realize the purpose of this utility model：
A kind of square regulating valve of trench air draft, including fixation axis in rectangular-shaped housing, through fixation
The threaded screw rod of axis and the rotation hand wheel of threaded screw rod top connection；Two rectangular paddles are articulated and connected simultaneously with fixed axis
It is symmetrical arranged；It is connected in the middle part of the threaded screw rod with rectangular paddle by rod hinge connection, threaded screw rod is cut with scissors with connecting rod by driving shaft
Connect, connecting rod is hinged with rectangular paddle by driven shaft.
The fixed axis is welded on the inner side of regulation valve housing, and the threaded screw rod passes through the screw thread on fixed axis
Kong Bingneng is moved up and down by screw thread.
There is rolling at the top of the housing, regulating valve passes through the nested buried rectangle wind being arranged on below air exhausting grille of rolling
Guan Zhong.
The utility model regulating valve is nested to be arranged on the buried rectangular air duct of ground air exhausting grille bottom, removes air draft lattice
Grid can adjust blade opening by rotation hand wheel, and the effective regulation and control of air exhausting grille air quantity can be achieved on the ground,
And then cause whole exhaust system Effec-tive Function, solve trench exhaust system regulating valve installation inconvenience, regulation difficulty, operation effect
The bad problem of fruit.
Brief description of the drawings
Fig. 1 is schematic diagram of the trench air draft with square regulating valve；
Fig. 2 is scheme of installation of the trench air draft with square regulating valve；
Fig. 3 is the square regulating valve performance chart of trench air draft；
In figure：1. rotation hand wheel 2. fix the driving shaft 7. of axis 3. rectangular paddle, 4. connecting rod 5. threaded screw rod 6. from
8. rolling of moving axis, 9. housing, 10. air exhausting grille, the 11. buried ground of rectangular air duct 12..
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
Referring to shown in accompanying drawing 1-2, a kind of square regulating valve of trench air draft, including in rectangular-shaped housing 9
Fixed axis 2, the rotation hand wheel 1 connected through the threaded screw rod 5 of fixed axis 2 and the top of threaded screw rod 5；Two rectangle leaves
Piece 3 is articulated and connected and is symmetrical arranged with fixed axis 2；The middle part of threaded screw rod 5 connects with rectangular paddle 3 by the way that connecting rod 4 is be hinged
Connect, threaded screw rod 5 is hinged with connecting rod 4 by driving shaft 6, and connecting rod 4 is hinged with rectangular paddle 3 by driven shaft 7；The rectangular-shaped shell
There is rolling 8 at the top of body, regulating valve is arranged in the buried rectangular air duct 11 below air exhausting grille 10 by the nesting of rolling 8, institute
Rolling 8 is stated as the outside edge structure to be formed that stretches out.
The fixed axis is the rhabodoid of strip, and the both ends of the fixed axis are welded on the rectangular-shaped of regulating valve
There is screwed hole at the inner side of housing, middle part, and the threaded screw rod passes through the screwed hole on fixed axis and can be by screwed hole
Screw thread moves up and down.
Specifically, upper end and the lower ending opening of the rectangular-shaped housing, the cylinder of one rectangular-shaped both ends open of formation
Shape structure.When in horizontality, can be in contact the rectangular paddle 3 sealing with the internal face of the rectangular-shaped housing
And regulating valve is closed, the rectangular paddle any angle can adjust its position and lock in the range of 90 °, so as to realize regulating valve
The regulation locking of aperture size.
Operation principle of the present utility model is as follows：
The air exhausting grille 10 installed in the opening position of ground 12 is removed, threaded screw rod 5 is driven by rotation hand wheel 1 on the ground
Move up and down, and then the aperture of rectangular paddle 3 is adjusted by connecting rod 4, realize the effective control and regulation of the air quantity of air exhausting grille 10.
The air exhausting grille that the regulating valve removes its top can drive threaded screw rod to move up and down by rotation hand wheel, and then
It is simple to operate by lever regulated blade opening, the effective regulation and control of air exhausting grille air quantity can be achieved on the ground, enter
And cause whole exhaust system Effec-tive Function, solve asking for the trench exhaust systems such as automobile plant's detection line regulation difficulty
Topic.
In specific implementation, the fixed axis 2, rectangular paddle 3, rolling 8 and housing 9 use cold rolling or hot-galvanized steel
Plate；The rotation hand wheel 1 and connecting rod 4 use mild steel；The threaded screw rod 5, driving shaft 6 and driven shaft 7 are low using Q235
Carbon steel.
Described square casing specification should determine according to the rectangular air duct size of its nesting installation.
The utility model belongs to one kind of opposite opened regulating valve, and it is bent that its regulation performance can refer to opposite opened regulation valve performance
Line, referring to Fig. 3, μ represents regulation air quantity ratio in figure, the ratio of air quantity when referring to the air quantity and maximum opening when valve is in each open degree
Value；α represents valve opening angle；ξ0Whole resistance coefficients where representing in ventilating system in addition to the utility model and.Fig. 3 gives
ξ is gone out0Regulating valve performance curve when=0.1,1,10,100, show that the regulation performance of this regulating valve is excellent.
The utility model has the advantages that：
Make fast, can be customized according to buried rectangular air duct size；Easy for installation, regulating valve nesting is arranged on ground air draft
On the buried rectangular air duct of grid bottom, solve the problems, such as that the installation of detection line trench exhaust system conventional regulator is inconvenient；Behaviour
Make simply, blade opening can be adjusted by rotation hand wheel by removing air exhausting grille, and air exhausting grille air quantity can be achieved on the ground
Effective regulation with control；Handwheel is driven, and blade any angle can be adjusted and locked in the range of 90 °.
Described above is only preferred embodiment of the present utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (3)
- A kind of 1. square regulating valve of trench air draft, it is characterised in that including the fixation axis in rectangular-shaped housing, Through the threaded screw rod of fixed axis and the rotation hand wheel of threaded screw rod top connection；Two rectangular paddles are cut with scissors with fixed axis Connect and be symmetrical arranged in succession；Be connected in the middle part of the threaded screw rod with rectangular paddle by rod hinge connection, threaded screw rod and connecting rod by Driving shaft is hinged, and connecting rod is hinged with rectangular paddle by driven shaft.
- 2. the square regulating valve of trench air draft according to claim 1, it is characterised in that the fixed axis is welded on regulation The inner side of valve housing, the threaded screw rod pass through the screwed hole on fixed axis and can moved up and down by screw thread.
- 3. the square regulating valve of trench air draft according to claim 1, it is characterised in that there is rolling at the top of the housing, Regulating valve passes through in the nested buried rectangular air duct being arranged on below air exhausting grille of rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993257.0U CN207094934U (en) | 2017-08-10 | 2017-08-10 | A kind of square regulating valve of trench air draft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993257.0U CN207094934U (en) | 2017-08-10 | 2017-08-10 | A kind of square regulating valve of trench air draft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207094934U true CN207094934U (en) | 2018-03-13 |
Family
ID=61544828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720993257.0U Active CN207094934U (en) | 2017-08-10 | 2017-08-10 | A kind of square regulating valve of trench air draft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207094934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020160701A1 (en) * | 2019-02-07 | 2020-08-13 | Ningbo Geely Automobile Research & Development Co., Ltd. | Air vent device for a ventilation system of a vehicle |
-
2017
- 2017-08-10 CN CN201720993257.0U patent/CN207094934U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020160701A1 (en) * | 2019-02-07 | 2020-08-13 | Ningbo Geely Automobile Research & Development Co., Ltd. | Air vent device for a ventilation system of a vehicle |
| CN113302068A (en) * | 2019-02-07 | 2021-08-24 | 宁波吉利汽车研究开发有限公司 | Ventilation device for vehicle ventilation system |
| US20210347231A1 (en) * | 2019-02-07 | 2021-11-11 | Ningbo Geely Automobile Research & Development Co., Ltd. | Air vent device for a ventilation system of a vehicle |
| CN113302068B (en) * | 2019-02-07 | 2023-10-13 | 宁波吉利汽车研究开发有限公司 | Ventilation device for a vehicle ventilation system |
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