CN209115750U - Excess pressure valve - Google Patents
Excess pressure valve Download PDFInfo
- Publication number
- CN209115750U CN209115750U CN201821900957.1U CN201821900957U CN209115750U CN 209115750 U CN209115750 U CN 209115750U CN 201821900957 U CN201821900957 U CN 201821900957U CN 209115750 U CN209115750 U CN 209115750U
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- valve
- excess pressure
- connecting rod
- pressure valve
- ventilation opening
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Abstract
The utility model discloses a kind of excess pressure valves, including valve buckle, valve buckle center is equipped with ventilation opening, the inside of ventilation opening is equipped with its corresponding valve plate, the lower outside of valve buckle is installed with support arm, and support arm is hinged by first rotating shaft and connecting rod one end, and the connecting rod other end is hinged by the second shaft and valve plate, connecting rod is connect with counter weight device, and the center of gravity of counter weight device is in side of the first rotating shaft far from valve buckle.The utility model install convenient, pressure regulation is convenient, occupied space is few, at low cost, is not necessarily to energy consumption, and counter weight device may be mounted at indoor excess pressure valve.
Description
Technical field
The utility model relates to air draught technical field, specifically a kind of excess pressure valve.
Background technique
Need to maintain the room of indoor positive pressure in toilet, computer floor, pressure air blowing staircase etc., to extraneous pressure difference
It is required that strict control, usually requires that the external world in positive pressure 10Pa or more.
Existing air excess pressure valve is mostly the opening and closing that valve is realized by the way of motor driven closure member, is needed
Sensor carries out the acquisition of pressure signal, is carried out automatically controlling by control circuit.But electrodynamic type overbottom pressure valve arrangement is more complex, at
The problem of this is higher, and there is also transmission lag.
Existing mechanical excess pressure valve is generally weight self hang down type, is typically mounted on indoor wall, in excess pressure valve framework
Interior setting is from the valve that hangs down, and when room pressure, which acts on the power on valve, is greater than the self weight of valve, valve is opened, air outflow,
Complete pressure leak process.But mechanical excess pressure valve is in valve opening, and entire valve can protrude metope, occupied space, therefore can only
It is installed in all less place of the stream of people, logistics, needs to be adjusted in outdoor when increasing difficulty of construction, and adjusting weight
Section, brings inconvenience to using, installing.
Utility model content
In view of the deficienciess of the prior art, the purpose of the utility model is to provide a kind of install convenient, pressure regulation is convenient, accounts for
It is few, at low cost with space, it is not necessarily to energy consumption, counter weight device may be mounted at indoor excess pressure valve.
Technical solution adopted by the utility model to solve the above technical problems is as follows:
A kind of excess pressure valve, including valve buckle, the valve buckle center are equipped with ventilation opening, and the inside of the ventilation opening is equipped with and its phase
The valve plate answered, the lower outside of the valve buckle are installed with support arm, and the support arm is hinged by first rotating shaft and connecting rod one end, described
The connecting rod other end is hinged by the second shaft and valve plate, and the connecting rod is connect with counter weight device, and the center of gravity of the counter weight device exists
Side of the first rotating shaft far from valve buckle.
Above-mentioned excess pressure valve, wherein the counter weight device includes the slide bar being installed on connecting rod, is arranged on the slide bar
Clump weight.
Above-mentioned excess pressure valve, wherein the slide bar is vertically arranged and is located at below first rotating shaft.
Above-mentioned excess pressure valve, wherein the clump weight is equipped with the adjusting hole for extending to slide bar, and the adjusting hole internal thread connects
There is the clamping screw to lean with slide bar.
Above-mentioned excess pressure valve, wherein the clamping screw end is installed with butterfly handle.
Above-mentioned excess pressure valve, wherein the connecting rod is in " G " shape.
Above-mentioned excess pressure valve, wherein the support arm between the connecting rod and first rotating shaft is equipped with limited post.
Above-mentioned excess pressure valve, wherein the ventilation opening outer rim is equipped with sealing element corresponding with valve plate.
Above-mentioned excess pressure valve, wherein the ventilation opening is round or polygon.
The beneficial effects of the utility model are: rotation is flexible, closes tight, easy to adjust, Non-energy-consumption.
The utility model is swift in response, and is that valve plate automatically opens when clean room pressure is more than setting pressure, release pressure
Power, when pressure is lower than setting pressure, valve plate is being sealed with air outlet automatically.
Clean indoor air can only flow from inside to outside, be not in adverse current, it is ensured that the air quality of toilet.
The utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to the utility model
Restriction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that the utility model removes valve buckle.
Wherein, appended drawing reference:
1, valve buckle；2, ventilation opening；3, valve plate；4, support arm；41, limited post；5, first rotating shaft；6, connecting rod；7, second turn
Axis；8, counter weight device；81, slide bar；82, clump weight；83, clamping screw.
Specific embodiment
The structural principle of the utility model and working principle are described in detail with reference to the accompanying drawing:
As shown in Figure 1, 2, a kind of excess pressure valve, including valve buckle 1,1 center of valve buckle are equipped with ventilation opening 2, and the inside of ventilation opening 2 is set
There is its corresponding valve plate 3, the lower outside of valve buckle 1 is installed with support arm 4, and support arm 4 is cut with scissors by first rotating shaft 5 and connecting rod one end
It connects, 6 other end of connecting rod is hinged by the second shaft 7 and valve plate 3, and the connecting rod 6 in the present embodiment is in " G " shape, connecting rod 6 and with refitting
8 connections are set, the center of gravity of counter weight device 8 is in side of the first rotating shaft 5 far from valve buckle 1.
6 other end of connecting rod is hinged with valve plate 3 by the second shaft 7 in the present embodiment, ensure that valve plate 3 when closed can be with
With 2 flexible contact of ventilation opening, it is ensured that the airtightness between valve plate 3 and ventilation opening 2.
Support arm 4 between connecting rod 6 and first rotating shaft 5 is equipped with limited post 41, and limited post 41 is for limiting valve plate 3 to valve buckle
The distance moved in 1, it is ensured that when ambient pressure is greater than room pressure, valve plate 3 can close ventilation opening 2, guarantee excess pressure valve
Using safe.
Counter weight device 8 in the present embodiment includes the slide bar 81 being installed on connecting rod 6, is arranged with clump weight on slide bar 81
82。
Slide bar 81 is vertically arranged and is located at 5 lower section of first rotating shaft.
Clump weight 82 is equipped with the adjusting hole (being not drawn into figure) for extending to slide bar 81, and adjusting hole silk is connected to and 81 phase of slide bar
Against clamping screw 83.
For the ease of adjustment and fixed weight block 82 in the present embodiment, butterfly handle is installed in the end of clamping screw 83
Hand.
In order to guarantee the sealing performance of excess pressure valve, outer fringe seal part in the inside of ventilation opening 2 makes excess pressure valve in closed state
When, ventilation opening 2 and valve plate 3 can be fitted close, it is ensured that after external air pressure is greater than room pressure, outside air can not be flowed into
It is indoor.
According to the difference and actual demand of architectural environment, ventilation opening 2 can be round or polygon, and valve plate 3 is also with logical
Do corresponding change in air port 2.
The working principle of the utility model is as follows:
As shown in Figure 1, valve plate 3 is in self weight and the work of clump weight 82 when the indoor pressure of cleaning is equal with ambient pressure
It is to close with lower and ventilation opening 2, when clean indoor pressure increases and be more than the pressure of setting, valve plate 3 will be in pressure difference
Effect is rotated clockwise with first rotating shaft 5 for axis, and valve plate 3 is separated from ventilation opening 2, and clean indoor air flows outward, when clean
When net indoor pressure is again less than pressure outside or setting pressure, valve plate 3 again can be in its self weight and the effect of counterweight with first
Shaft 5 rotates counterclockwise for axis, and valve plate 3 leans with ventilation opening 2, then ventilation opening 2 is closed.
Clump weight 82 can be adjusted in the position of slide bar 81 according to the size of air quantity, pressure difference, since the excess pressure valve is installed
Indoors, so adjusting clump weight 82 becomes convenient and efficient.
Since valve buckle 1 is close to interior, so valve plate 3 hardly occupies the exterior space after opening, so giving installation
Bring convenience.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (9)
1. a kind of excess pressure valve, which is characterized in that including valve buckle, the valve buckle center is equipped with ventilation opening, the inside of the ventilation opening
Equipped with its corresponding valve plate, the lower outside of the valve buckle is installed with support arm, and the support arm passes through first rotating shaft and connecting rod one
End is hinged, and the other end of the connecting rod is hinged by the second shaft and valve plate, and the connecting rod is connect with counter weight device, the counterweight
The center of gravity of device is in side of the first rotating shaft far from valve buckle.
2. excess pressure valve as described in claim 1, which is characterized in that the counter weight device includes the slide bar being installed on connecting rod,
Clump weight is arranged on the slide bar.
3. excess pressure valve as claimed in claim 2, which is characterized in that the slide bar is vertically arranged and is located at below first rotating shaft.
4. excess pressure valve as claimed in claim 2, which is characterized in that the clump weight is equipped with the adjusting hole for extending to slide bar,
The adjusting hole internal thread is connected to the clamping screw to lean with slide bar.
5. excess pressure valve as claimed in claim 4, which is characterized in that the clamping screw end is installed with butterfly handle.
6. excess pressure valve as described in claim 1, which is characterized in that the connecting rod is in " G " shape.
7. excess pressure valve as claimed in claim 6, which is characterized in that the support arm between the connecting rod and first rotating shaft is equipped with limit
Position column.
8. excess pressure valve as described in claim 1, which is characterized in that the ventilation opening outer rim is equipped with seal corresponding with valve plate
Part.
9. the excess pressure valve as described in 1-8 any claim, which is characterized in that the ventilation opening is round or polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900957.1U CN209115750U (en) | 2018-11-17 | 2018-11-17 | Excess pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900957.1U CN209115750U (en) | 2018-11-17 | 2018-11-17 | Excess pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115750U true CN209115750U (en) | 2019-07-16 |
Family
ID=67205616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821900957.1U Active CN209115750U (en) | 2018-11-17 | 2018-11-17 | Excess pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387906A (en) * | 2019-07-31 | 2019-10-29 | 中冶建工集团有限公司 | Pull handle mounting structure |
-
2018
- 2018-11-17 CN CN201821900957.1U patent/CN209115750U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387906A (en) * | 2019-07-31 | 2019-10-29 | 中冶建工集团有限公司 | Pull handle mounting structure |
| CN110387906B (en) * | 2019-07-31 | 2021-03-23 | 中冶建工集团有限公司 | Pull handle mounting structure |
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| GR01 | Patent grant |