CN112780797A - A wind pressure regulating valve for roofing anti-wind uncovers detecting system - Google Patents

A wind pressure regulating valve for roofing anti-wind uncovers detecting system Download PDF

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Publication number
CN112780797A
CN112780797A CN202110072669.1A CN202110072669A CN112780797A CN 112780797 A CN112780797 A CN 112780797A CN 202110072669 A CN202110072669 A CN 202110072669A CN 112780797 A CN112780797 A CN 112780797A
Authority
CN
China
Prior art keywords
valve body
air
wind
position sensor
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110072669.1A
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Chinese (zh)
Inventor
张士翔
何瑄
赖燕德
闫松
王赟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Provincial Academy of Building Research Group Co Ltd
Original Assignee
Guangdong Provincial Academy of Building Research Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Provincial Academy of Building Research Group Co Ltd filed Critical Guangdong Provincial Academy of Building Research Group Co Ltd
Priority to CN202110072669.1A priority Critical patent/CN112780797A/en
Publication of CN112780797A publication Critical patent/CN112780797A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0058—Optical means, e.g. light transmission, observation ports

Abstract

The invention discloses a wind pressure adjusting valve for a roof wind uncovering resistance detection system, which comprises: the valve body is provided with an air inlet, an air outlet, a first scavenging port and a second scavenging port which are communicated with the inner cavity of the valve body on the periphery, the inner cavity of the valve body between the air inlet and the first scavenging port forms a first air exchange channel, and the inner cavity of the valve body between the air inlet and the second scavenging port forms a second air exchange channel; the reversing fan blades are arranged in the valve body through a rotating shaft, the upper end of the rotating shaft extends out of the valve body and is connected with a driving motor in a driving mode, and the driving motor drives the rotating shaft to rotate to drive the reversing fan blades to swing back and forth between the first air exchange channel and the second air exchange channel; the positioning assembly is arranged on the valve body and the rotating shaft and limits the swing position of the reversing fan blade so as to correspondingly switch the working state of the wind pressure regulating valve; the invention can provide fluctuating wind pressure for the detection box body in a positive pressure state and a negative pressure state.

Description

A wind pressure regulating valve for roofing anti-wind uncovers detecting system
Technical Field
The invention relates to a wind pressure regulating valve, in particular to a wind pressure regulating valve for a roof wind uncovering resistance detection system.
Background
The test of the wind-lift resistance of the roof is the most important test item in the safety performance of the metal roof, in the detection of the wind-lift resistance of the roof, the pressure which can be periodically changed by wind pressure needs to be applied to the upper part of the roof, the existing detection mode is that a fan blows air into a closed detection box body, and the fluctuation change of the wind pressure is realized by periodically opening a gas release valve, for example, patent No. ZL200620060544.8, discloses a mechanical fluctuation valve for detecting the doors and windows of a building curtain wall, which is provided with an outer sleeve valve and an inner sleeve valve which are mutually sleeved, wherein the outer sleeve valve and the inner sleeve valve are both provided with gas release openings, when the inner sleeve valve is driven to relatively rotate in the outer sleeve valve, the area of the overlapped part of the gas release openings of the outer sleeve valve and the inner sleeve valve is periodically changed, so that stable periodically fluctuating wind pressure is formed in a pipeline, but the fluctuation valve can only provide the wind pressure under the positive pressure state, the fluctuating wind pressure in a negative pressure state cannot be provided for the detection box; when outer sleeve valve along slide rail reciprocating translation motion under the drive of motor to change the volume of losing air, but because the opening size that loses air is fixed, when examining, can't carry out real-time regulation to pressure release speed, lead to the crest and the trough of undulant wind pressure wayward, can't satisfy the anti-wind performance detection demand of revealing, overall structure is complicated moreover.
Disclosure of Invention
The invention aims to solve the technical problem of providing a wind pressure regulating valve for a roof wind uncovering resistance detection system, wherein the wind pressure regulating valve can provide fluctuating wind pressure for a detection box in a positive pressure state and a negative pressure state, so that the wind uncovering resistance detection requirement is met.
The above object of the present invention is achieved by the following means.
The utility model provides a wind pressure regulating valve for roofing anti-wind uncovering detecting system which characterized in that includes:
the valve body is provided with an air inlet, an air outlet, a first scavenging port and a second scavenging port which are communicated with the inner cavity of the valve body at the periphery, the air inlet is communicated with the air outlet end of the fan, the air outlet is communicated with the air inlet end of the fan, the first scavenging port is communicated with the inner cavity of the detection box, and the second scavenging port is communicated with the outside; a first air exchange channel is formed in a valve body inner cavity between the air inlet and the first air exchange port, and a second air exchange channel is formed in a valve body inner cavity between the air inlet and the second air exchange port;
the reversing fan blades are arranged in the valve body through a rotating shaft, the upper end of the rotating shaft extends out of the valve body and is connected with a driving motor in a driving mode, and the driving motor drives the rotating shaft to rotate to drive the reversing fan blades to swing back and forth between the first air exchange channel and the second air exchange channel;
when the reversing fan blade swings to be parallel to the axial direction of the air inlet, the first air exchange channel and the second air exchange channel are communicated, air enters the valve body from the second air exchange port under the action of the fan and circularly flows parallel to the front and rear blade surfaces of the reversing fan blade, and the air pressure regulating valve is in a pressure balance state;
when the reversing fan blade swings to the first air exchange channel to be communicated and the second air exchange channel is closed, under the action of the fan, outside air enters the valve body from the second air exchange port, sequentially passes through the air outlet, the air inlet and the first air exchange port and then enters the detection box, and the air pressure adjusting valve is in a positive pressure state;
when the reversing fan blade swings to seal the first air exchange channel and communicate the second air exchange channel, under the action of the fan, air in the detection box enters the valve body from the first air exchange port and is discharged out of the valve body after sequentially passing through the air outlet, the air inlet and the second air exchange port, and the air pressure adjusting valve is in a negative pressure state;
and the positioning assembly is arranged on the valve body and the rotating shaft and limits the swing position of the reversing fan blade so as to correspondingly switch the working state of the wind pressure regulating valve.
On the basis of the technical scheme, the invention can be improved as follows:
the positioning assembly of the present invention comprises:
a first position sensor which is installed on the valve body and corresponds to the positive pressure state position of the wind pressure regulating valve;
the second position sensor is arranged on the valve body and corresponds to the negative pressure state position of the wind pressure adjusting valve;
a third position sensor which is arranged on the valve body and corresponds to the pressure balance state position of the wind pressure regulating valve;
the positioning induction strip is arranged outside the valve body and corresponds to the reversing fan blades up and down, one end of the positioning induction strip is fixedly connected to the rotating shaft, and the other end of the positioning induction strip swings around the rotating shaft;
when the positioning induction strip swings to be matched with the first position sensor, the reversing fan blades synchronously swing to enable the wind pressure adjusting valve to be in a positive pressure state;
when the positioning induction strip swings to be matched with the second position sensor, the reversing fan blades synchronously swing to enable the wind pressure adjusting valve to be in a negative pressure state;
when the positioning induction strip swings to be matched with the third position sensor, the reversing fan blades swing synchronously, so that the air pressure regulating valve is in a pressure balance state.
The valve body is provided with a rotating mechanism, and the third position sensor is arranged on the valve body through the rotating mechanism and swings around the rotating shaft.
The positioning assembly of the present invention further comprises:
at least three limit sensors mounted on the valve body, the limit sensors being positioned between the first position sensor and the second position sensor and equiangularly distributed around the rotating shaft;
and the limiting induction strips are arranged on the rotating mechanism and vertically correspond to the third position sensors, the rotating mechanism drives the limiting induction strips to swing around the rotating shaft and respectively match with the limiting sensors, and the third position sensors synchronously swing to enable the reversing fan blades to swing back and forth between the corresponding limiting sensors and the position sensors so as to limit the swinging angles of the reversing fan blades.
The rotating mechanism comprises a first gear and a second gear which are meshed with each other, the first gear is sleeved on the rotating shaft, the third position sensor is installed on the first gear, the limiting induction strip is installed on the first gear and corresponds to the third position sensor up and down, and the second gear is connected with an adjusting motor in a driving mode.
The first position sensor, the second position sensor, the third position sensor and the limit sensor are all positioned on the same side of the valve body and are laser sensors.
According to the invention, the air inlet and the air outlet are symmetrically arranged on two sides of the valve body, the first scavenging port and the second scavenging port are symmetrically arranged on the other two sides of the valve body, and a channel formed by the air inlet and the air outlet is vertically intersected and communicated with a channel formed by the first scavenging port and the second scavenging port.
Compared with the prior art, the invention has the following advantages:
(1) in the wind pressure regulating valve, four air ports are arranged on the periphery of a valve body, wherein a first air exchange passage is formed in a valve body inner cavity between an air inlet and a first air exchange port, a second air exchange passage is formed in a valve body inner cavity between the air inlet and a second air exchange port, the two air exchange passages respectively correspond to a positive pressure state and a negative pressure state of the regulating valve, a position sensor is correspondingly arranged on the valve body, reversing fan blades swing back and forth in the valve body to form periodically-changed fluctuating wind pressure, and the swinging positions of the reversing fan blades are limited by the position sensor to switch the communication state of the two air exchange passages, so that the wind pressure regulating valve can provide fluctuating wind pressure for a detection box in the positive pressure state and the negative pressure state, and the detection requirement of wind uncover;
(2) in the wind pressure regulating valve, the valve body is also provided with a limit sensor which can limit the swing angle of the reversing fan blades, so that the wind pressure regulating valve can change the air supply speed and the pressure release speed and control the wave crest and the wave trough of the fluctuating wind pressure;
(3) the wind pressure regulating valve has simple integral structure and low manufacturing cost, and is favorable for popularization and use.
Drawings
The invention is described in further detail below with reference to the figures and the specific embodiments
FIG. 1 is a schematic structural view of a wind pressure regulating valve according to the present invention;
FIG. 2 is a schematic view of the connection between the wind pressure adjusting valve and the fan and between the wind pressure adjusting valve and the detection box;
fig. 3 is a schematic view of the pressure balance state of the wind pressure regulating valve of the present invention.
FIG. 4 is a schematic view of a positive pressure state of the wind pressure regulating valve according to the present invention;
fig. 5 is a schematic view of the negative pressure state of the wind pressure regulating valve of the present invention.
Reference numbers on the drawings: 1-a detection box, 2-a fan, 3-a valve body, 4-an air inlet, 5-an exhaust port, 6-a first scavenging port, 7-a second scavenging port, 8-a first scavenging passage, 9-a second scavenging passage, 10-a reversing fan blade, 11-a rotating shaft, 12-a driving motor, 13-a first position sensor, 14-a second position sensor, 15-a third position sensor, 16-a positioning induction bar, 17-a limit sensor, 17 a-a first limit sensor, 17 b-a second limit sensor, 17 c-a third limit sensor, 18-a limit induction bar, 19-a first gear, 20-a second gear, 21-an adjusting motor and 22-a support.
Detailed Description
Referring to fig. 1, a wind pressure adjusting valve for a roof anti-wind-uncovering detection system of the present embodiment includes:
referring to fig. 2, the valve body 3 is provided with an air inlet 4, an air outlet 5, a first scavenging port 6 and a second scavenging port 7 at the periphery thereof, the air inlet 4 is communicated with the air outlet end of the fan 2 through a pipeline, the air outlet 4 is communicated with the air inlet end of the fan 2 through a pipeline, the first scavenging port 6 is communicated with the inner cavity of the detection box 1 through a pipeline, and the second scavenging port 7 is communicated with the outside; the air inlet 4 and the air outlet 5 are symmetrically arranged at two sides of the valve body 3, the first scavenging port 6 and the second scavenging port 7 are symmetrically arranged at the other two sides of the valve body 3, and a channel formed by the air inlet 4 and the air outlet 5 is vertically intersected and communicated with a channel formed by the first scavenging port 6 and the second scavenging port 7; a first air exchange channel 8 is formed in a valve body inner cavity between the air inlet 4 and the first air exchange port 6, and a second air exchange channel 9 is formed in a valve body inner cavity between the air inlet 4 and the second air exchange port 7;
the reversing fan blades 10 are installed in the valve body 3 through the rotating shaft 11, the upper end of the rotating shaft 11 extends out of the valve body 3 and is connected with the driving motor 12 in a driving mode, and the driving motor 12 drives the rotating shaft 11 to rotate to drive the reversing fan blades 10 to swing back and forth between the first air exchange channel 8 and the second air exchange channel 9;
referring to fig. 3, when the reversing fan blade 10 swings to the position parallel to the axial direction of the air inlet 4, i.e. 0 °, the first air exchanging channel 8 and the second air exchanging channel 9 are both communicated, air enters the valve body 3 through the second air exchanging port 7, and circularly flows parallel to the front and rear blade surfaces of the reversing fan blade 10 under the action of the fan 2, and the wind pressure regulating valve is in a pressure balance state;
referring to fig. 4, when the reversing fan blade 10 swings 45 ° counterclockwise, the first air exchanging passage 8 is communicated, the second air exchanging passage 9 is closed, under the action of the fan 2, the outside air enters the valve body 3 through the second air exchanging port 7, and enters the detection box 1 after sequentially passing through the air outlet 5, the air inlet 4 and the first air exchanging port 6, and the air pressure regulating valve is in a positive pressure state;
referring to fig. 5, when the reversing fan blade 10 swings clockwise by 45 °, the first air exchanging passage 8 is closed and the second air exchanging passage 9 is communicated, under the action of the fan 2, air in the detection box 1 enters the valve body 3 through the first air exchanging port 7 and is discharged out of the valve body 3 after sequentially passing through the air outlet 5, the air inlet 4 and the second air exchanging port 7, and the air pressure regulating valve is in a negative pressure state;
and a positioning assembly installed on the valve body 3 and the rotating shaft 11 and limiting the swing position of the reversing fan blade 10 to correspondingly switch the working state of the wind pressure adjusting valve.
The positioning assembly in this embodiment includes:
a first position sensor 13 mounted on the valve body 3 and corresponding to a positive pressure state position of the wind pressure adjusting valve;
a second position sensor 14 installed on the valve body 3 and corresponding to a negative pressure state position of the wind pressure adjusting valve;
a third position sensor 15 installed on the valve body 3 and corresponding to a pressure balance state position of the wind pressure adjusting valve;
the positioning induction strip 16 is arranged outside the valve body 3 and vertically corresponds to the reversing fan blades 10, one end of the positioning induction strip 16 is fixedly connected to the rotating shaft 11, and the other end of the positioning induction strip swings around the rotating shaft 11;
when the rotating shaft 11 rotates to drive the positioning induction strip 16 to swing to be matched with the first position sensor 13, the reversing fan blades 10 swing synchronously, the first air exchange passage 8 is communicated, and the air pressure regulating valve is in a positive pressure state;
when the rotating shaft 11 rotates to drive the positioning induction strip 16 to swing to be matched with the second position sensor 14, the reversing fan blades 10 swing synchronously, the second air exchange passage 9 is communicated, and the air pressure regulating valve is in a negative pressure state;
when the rotating shaft 11 rotates to drive the positioning induction strip 16 to swing to be matched with the third position sensor 15, the reversing fan blades 10 swing synchronously, so that the air pressure regulating valve is in a pressure balance state;
therefore, the driving motor 12 is controlled to drive the rotating shaft 11 to rotate, so as to drive the reversing fan blades 10 to swing back and forth between the first position sensor 13 and the third position sensor 15 of the valve body 3, so that the wind pressure regulating valve in the embodiment can provide wind pressure fluctuation for the detection box 1 in a positive pressure state; the rotating shaft 11 is driven to rotate by controlling the driving motor 12, so as to drive the reversing fan blades 10 to swing back and forth between the second position sensor 14 and the third position sensor 15 of the valve body 3, and the wind pressure regulating valve in the embodiment can provide wind pressure fluctuation for the detection box 1 in a negative pressure state, so that the detection requirement of wind uncovering resistance is met.
The valve body 3 in this embodiment is provided with a rotating mechanism, the rotating mechanism comprises a first gear 19 and a second gear 20 which are mutually engaged, the first gear 19 is a large gear, and the second gear 20 is a small gear; the first gear 19 is sleeved on the rotating shaft 11, the third position sensor 15 is installed on the first gear 19 through a connecting piece, the third position sensor 15 swings around the rotating shaft 11 through the first gear 19, the second gear 20 is connected with an adjusting motor 21 in a driving mode, and the second gear 20 is installed on a support 22 erected on the top of the valve body 3.
The positioning assembly in this embodiment further comprises:
the three limit sensors 17 are respectively a first limit sensor 17a, a second limit sensor 17b and a third limit sensor 17c, the three limit sensors 17 are installed on the valve body 3, the three limit sensors 17 are positioned between the first position sensor 13 and the second position sensor 14 and are distributed with the rotating shaft 11 as the center and at equal angles, and the third limit sensor 17c is positioned on the axis of the air inlet 4;
a limit induction bar 18 which is installed on the first gear 19 through a connecting piece and corresponds to the third position sensor 15 up and down, and the limit induction bar 18 swings around the rotating shaft 11 through the first gear 19; since the position sensing bar 16 is engaged with only the first position sensor 13, the second position sensor 14 or the third position sensor 15, therefore,
when the limit induction bar 18 is matched with the first limit sensor 17a, the position of the third position sensor 15 is correspondingly changed, and the swing angle of the reversing fan blade 10 which swings back and forth between the first position sensor 13 and the third position sensor 15 is correspondingly reduced, so that the air outlet speed of the wind pressure regulating valve in a positive pressure state is controlled;
when the limit induction bar 18 is matched with the first limit sensor 17b, the position of the third position sensor 15 is correspondingly changed, and the swing angle of the reversing fan blade 10 swinging back and forth between the second position sensor 14 and the third position sensor 15 is correspondingly reduced, so that the air outlet speed of the wind pressure regulating valve in a positive pressure state is controlled;
when the limit induction bar 18 is matched with the first limit sensor 17c, the position of the third position sensor 15 is unchanged, and the swinging angle of the reversing fan blade 10 swinging back and forth between the first position sensor 13 and the third position sensor 15 and between the second position sensor 14 and the third position sensor 15 is the largest; therefore, the wave crest and the wave trough of the fluctuating wind pressure can be accurately adjusted by the wind pressure adjusting valve in the embodiment.
According to actual angle control needs, the number of the limiting sensors 17 can be correspondingly increased, so that the swinging angle of the reversing fan blades 10 is further limited in a subdivided manner, the adjustable range of wave crests and wave troughs of fluctuating wind pressure is improved, and more different wind uncovering resistance detection requirements are met.
The first position sensor 13, the second position sensor 14, the third position sensor 15, and the limit sensor 17 in this embodiment are all located on the intake port side of the valve body 3 and are laser sensors.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.

Claims (7)

1. The utility model provides a wind pressure regulating valve for roofing anti-wind uncovering detecting system which characterized in that includes:
the valve body is provided with an air inlet, an air outlet, a first scavenging port and a second scavenging port which are communicated with the inner cavity of the valve body at the periphery, the air inlet is communicated with the air outlet end of the fan, the air outlet is communicated with the air inlet end of the fan, the first scavenging port is communicated with the inner cavity of the detection box, and the second scavenging port is communicated with the outside; a first air exchange channel is formed in a valve body inner cavity between the air inlet and the first air exchange port, and a second air exchange channel is formed in a valve body inner cavity between the air inlet and the second air exchange port;
the reversing fan blades are arranged in the valve body through a rotating shaft, the upper end of the rotating shaft extends out of the valve body and is connected with a driving motor in a driving mode, and the driving motor drives the rotating shaft to rotate to drive the reversing fan blades to swing back and forth between the first air exchange channel and the second air exchange channel;
when the reversing fan blade swings to be parallel to the axial direction of the air inlet, the first air exchange channel and the second air exchange channel are communicated, air enters the valve body from the second air exchange port under the action of the fan and circularly flows parallel to the front and rear blade surfaces of the reversing fan blade, and the air pressure regulating valve is in a pressure balance state;
when the reversing fan blade swings to the first air exchange channel to be communicated and the second air exchange channel is closed, under the action of the fan, outside air enters the valve body from the second air exchange port, sequentially passes through the air outlet, the air inlet and the first air exchange port and then enters the detection box, and the air pressure adjusting valve is in a positive pressure state;
when the reversing fan blade swings to seal the first air exchange channel and communicate the second air exchange channel, under the action of the fan, air in the detection box enters the valve body from the first air exchange port and is discharged out of the valve body after sequentially passing through the air outlet, the air inlet and the second air exchange port, and the air pressure adjusting valve is in a negative pressure state;
and the positioning assembly is arranged on the valve body and the rotating shaft and limits the swing position of the reversing fan blade so as to correspondingly switch the working state of the wind pressure regulating valve.
2. The wind pressure regulating valve for a roofing wind lift resistance detection system according to claim 1, wherein the positioning assembly comprises:
a first position sensor which is installed on the valve body and corresponds to the positive pressure state position of the wind pressure regulating valve;
the second position sensor is arranged on the valve body and corresponds to the negative pressure state position of the wind pressure adjusting valve;
a third position sensor which is arranged on the valve body and corresponds to the pressure balance state position of the wind pressure regulating valve;
the positioning induction strip is arranged outside the valve body and corresponds to the reversing fan blades up and down, one end of the positioning induction strip is fixedly connected to the rotating shaft, and the other end of the positioning induction strip swings around the rotating shaft;
when the positioning induction strip swings to be matched with the first position sensor, the reversing fan blades synchronously swing to enable the wind pressure adjusting valve to be in a positive pressure state;
when the positioning induction strip swings to be matched with the second position sensor, the reversing fan blades synchronously swing to enable the wind pressure adjusting valve to be in a negative pressure state;
when the positioning induction strip swings to be matched with the third position sensor, the reversing fan blades swing synchronously, so that the air pressure regulating valve is in a pressure balance state.
3. The wind pressure adjusting valve for the roof anti-wind uncovering detection system according to the claim 2, wherein the valve body is provided with a rotating mechanism, and the third position sensor is installed on the valve body through the rotating mechanism and swings around the rotating shaft.
4. The wind pressure regulating valve for a roofing wind lift resistant detection system of claim 3 wherein the positioning assembly further comprises:
at least three limit sensors mounted on the valve body, the limit sensors being positioned between the first position sensor and the second position sensor and equiangularly distributed around the rotating shaft;
and the limiting induction strips are arranged on the rotating mechanism and vertically correspond to the third position sensors, the rotating mechanism drives the limiting induction strips to swing around the rotating shaft and respectively match with the limiting sensors, and the third position sensors synchronously swing to enable the reversing fan blades to swing back and forth between the corresponding limiting sensors and the position sensors so as to limit the swinging angles of the reversing fan blades.
5. The wind pressure adjusting valve for the roof anti-wind-uncovering detection system according to claim 4, wherein the rotating mechanism comprises a first gear and a second gear which are meshed with each other, the first gear is sleeved on the rotating shaft, the third position sensor is installed on the first gear, the limiting induction strip is installed on the first gear and vertically corresponds to the third position sensor, and the second gear is connected with an adjusting motor in a driving manner.
6. The wind pressure adjusting valve for the roof anti-wind-lift detection system according to claim 5, wherein the first position sensor, the second position sensor, the third position sensor and the limit sensor are all located on the same side of the valve body and are laser sensors.
7. The wind pressure adjusting valve for the roof anti-wind-lift detection system according to any one of claims 1 to 6, wherein the air inlet and the air outlet are symmetrically arranged on two sides of the valve body, the first transfer port and the second transfer port are symmetrically arranged on the other two sides of the valve body, and the channel formed by the air inlet and the air outlet is vertically intersected and communicated with the channel formed by the first transfer port and the second transfer port.
CN202110072669.1A 2021-01-20 2021-01-20 A wind pressure regulating valve for roofing anti-wind uncovers detecting system Pending CN112780797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110072669.1A CN112780797A (en) 2021-01-20 2021-01-20 A wind pressure regulating valve for roofing anti-wind uncovers detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110072669.1A CN112780797A (en) 2021-01-20 2021-01-20 A wind pressure regulating valve for roofing anti-wind uncovers detecting system

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Publication Number Publication Date
CN112780797A true CN112780797A (en) 2021-05-11

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Application Number Title Priority Date Filing Date
CN202110072669.1A Pending CN112780797A (en) 2021-01-20 2021-01-20 A wind pressure regulating valve for roofing anti-wind uncovers detecting system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113898084A (en) * 2021-11-09 2022-01-07 长沙理工大学 Remote control pneumatic optimization device suitable for overhanging roof and use method thereof
WO2023279114A1 (en) * 2021-07-02 2023-01-05 Artisan Industries Inc. Vision system for rotary valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023279114A1 (en) * 2021-07-02 2023-01-05 Artisan Industries Inc. Vision system for rotary valve
US11965608B2 (en) 2021-07-02 2024-04-23 Artisan Industries Inc. Vision system for rotary valve
CN113898084A (en) * 2021-11-09 2022-01-07 长沙理工大学 Remote control pneumatic optimization device suitable for overhanging roof and use method thereof

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