CN211100689U

CN211100689U - Intelligent ventilation valve for ventilation cabinet

Info

Publication number: CN211100689U
Application number: CN201921806362.4U
Authority: CN
Inventors: 王伟忠; 焦建新
Original assignee: Zhongcheng Tianjin Medical Science And Technology Development Co ltd
Current assignee: Zhongcheng Tianjin Medical Science And Technology Development Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-07-28
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses an intelligent ventilation valve for a ventilation cabinet, which comprises a ventilation cabinet and a ventilation valve, wherein a cabinet door is arranged above the ventilation cabinet, one side of the cabinet door is provided with a controller, the controller is electrically connected with a position sensor and a valve controller, the ventilation valve is arranged in the middle of the ventilation pipe in parallel, the outer end of the ventilation valve is electrically connected with an actuator, the exterior of the ventilation valve is provided with a valve body, the two ends of the valve body are respectively penetrated with a connecting air cock and a ventilation opening, one side of the connecting air cock is provided with an outer sealing ring, the outer sealing ring is penetrated through a pin and tightly connected with a sealing gasket and an inner sealing ring, the middle of the inner sealing ring is penetrated with a piston through a piston rod, one side of the piston is tightly connected with a compression spring, one side of the compression spring, the utility model discloses degree of automation is high, realizes the energy-conserving high-efficient function of equipment.

Description

Intelligent ventilation valve for ventilation cabinet

Technical Field

The utility model relates to a valve specifically is an intelligent ventilation valve for fume chamber.

Background

Present valve for fume chamber, in order to realize the invariant of face wind speed, an intermediate transfer ware of additional configuration is required, the fume chamber watch-dog promptly, thereby cause the whole cost on the high side of one set of valve for fume chamber, and the valve that the fume chamber that exists at present used can not realize according to the fume chamber volume of airing exhaust and automatic control valve's automatic effect, the linkage effect of opening in the time of unable fume chamber and valve of realizing, and the fume valve on the existing market realizes the change of the gas pressure in the amount of wind detecting system through the switch, the fume valve who uses in the present is mostly the solenoid valve. However, the solenoid valve needs to be reset by the pressure of the gas and a spring. If the solenoid valve is not operated for a long time, the lubricating oil in the solenoid valve is solidified, so that the friction force of the spring is increased. If the solenoid valve is not operated for a long time and is opened or closed when the gas pressure is low, the solenoid valve is likely to be not operated. Therefore, how to solve the problem that the use occasion of the existing ventilation valve is limited or the existing ventilation valve is easy to be motionless is a technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligent ventilation valve for fume chamber to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an intelligent ventilation valve for a ventilation cabinet comprises the ventilation cabinet and a ventilation valve, wherein a cabinet door is installed above the ventilation cabinet, a controller is arranged on one side of the cabinet door, the controller is electrically connected with a position sensor and a valve controller, a ventilation pipe penetrates through the rear part of the ventilation cabinet, the ventilation valve is installed in the middle of the ventilation pipe in parallel, the outer end of the ventilation valve is electrically connected with an actuator, a valve body is arranged outside the ventilation valve, a motor is fixed above the valve body, a connecting air faucet and a ventilation opening are respectively penetrated through the two ends of the valve body, an outer sealing ring is arranged on one side of the connecting air faucet, a sealing gasket and an inner sealing ring are tightly connected through a pin of the outer sealing ring, a piston penetrates through the middle of the inner sealing ring through a piston rod, a compression spring is tightly connected on, the air inlet valve is characterized in that a locking block is arranged in the valve body, a mounting plate is tightly fixed on one side of the locking block through a screw and a nut, and the air inlet is tightly fixed at one end of the valve body through the mounting plate.

Preferably, the position sensor and the valve controller are electrically connected with a resistance point position indicator transmitter through an internal lead, so that the position information is efficiently detected, and the ventilation degree in the ventilation valve is controlled.

Preferably, the position sensor adopts a slide rheostat, and the slide rheostat is adopted, so that the resistance value of the slide rheostat is directly adjusted when the cabinet door moves, and the change relation of the resistance output of the slide rheostat and the real-time correlation of the cabinet door is established.

Preferably, the cavity in the valve body is set as an air passage, so that efficient ventilation is realized.

Preferably, the motor rotates the output shaft and is connected to piston motion input direction, realizes motor automatic control piston, the inside amount of wind of automatic control fume chamber.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a controller that sets up can link cabinet door switch degree and realize the motion of automatically regulated motor control piston, and degree of automation and intelligence are all very high, and the ventilation valve is inside to set up closely, and the seal is good, the phenomenon of ventilative can not appear, have energy-conservation, amount of wind adjustment are rapid, with low costs, install advantages such as convenient, just the utility model discloses a motion of ventilation valve's piston is mainly through motor control, therefore the quality requirement to the gas is lower; the motion of the output shaft is controlled by a machine and is less influenced by air pressure, so that the condition that the ventilation valve does not act is less when the air pressure is lower; the effective ventilation area of air flue is great, simple structure, and convenient to use, and the filter screen through setting up can guarantee to a certain extent that the gas in the fume chamber is pollution-free, impurity is few.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the structure schematic diagram of the ventilation valve of the present invention.

In the figure: 1-connecting an air tap; 2-outer sealing ring; 3-pins; 4-a sealing gasket; 5-inner sealing ring; 6, a motor; 7-a locking block; 8-mounting a plate; 9-a nut; 10-a vent; 11-a ventilation valve; 12-a piston; 13, filtering the filter screen; 14-a valve body; 15-screws; 16-a compression spring; 17-an actuator; 18-a vent tube; 19-a controller; 20-a position sensor; 21-a valve controller; 22-cabinet door; 23-a fume hood; 24-piston rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an intelligent ventilation valve for fume chamber, includes fume chamber 23 and ventilation valve 11, cabinet door 22 is installed to fume chamber 23 top, cabinet door 22 one side is provided with controller 19, electric connection has position sensor 20 and valve controller 21 on the controller 19, ventilation pipe 18 has been run through to fume chamber 23 rear, inside parallel mount has the ventilation valve 11 in the middle of the ventilation pipe 18, ventilation valve 11 outer end electric connection has executor 17, the ventilation valve 11 outside is provided with valve body 14, be fixed with motor 6 above the valve body 14, the valve body 14 both ends are run through respectively and are connected air cock 1 and vent 10, it is provided with outer seal 2 to connect air cock 1 one side, outer seal 2 runs through pin 3 and closely is connected with sealed 4 and inner seal 5, the piston 12 has been run through piston rod 24 in the middle of inner seal 5, piston 12 one side zonulae occludens has compression spring 16, compression spring 16 one side is provided with filter screen 13, be provided with latch segment 7 in the valve body 14, latch segment 7 one side is closely fixed with mounting panel 8 through screw 15 and nut 9, vent 10 passes through mounting panel 8 closely fixes valve body 14 one end.

The position sensor 20 and the valve controller 21 are electrically connected with a resistance point position indicator transmitter through an internal wire, position information is detected efficiently, the ventilation degree in the ventilation valve 11 is controlled, the position sensor 20 adopts a slide rheostat, the resistance value of the slide rheostat is directly adjusted when the cabinet door 22 moves, so that the change relation of real-time correlation between the resistance output of the slide rheostat and the cabinet door 22 is established, the cavity in the valve body 14 is set as an air passage to achieve efficient ventilation, the motor 6 rotates and outputs an shaft to be connected to the motion input direction of the piston 12, and the motor 6 automatically controls the piston 12 and the air quantity in the ventilation cabinet.

The working principle is as follows: the utility model relates to an intelligent ventilation valve for fume chamber, ventilation valve 11 sets up the ventilation respectively and uses connecting air cock 1 and vent 10, and run through the ventilation pipe 18 from inside and be horizontal placing, connect air cock 1 one side through outer seal ring 2 and inner seal ring zonulae occludens piston 12 and compression spring 16, the leakproofness improves, piston stopper 12, movably set up in valve block 14, is used for opening or shutoff air flue; the output shaft of the motor 6 is connected with the piston 12, and when the air passage needs to be blocked, the piston 12 is pressed against the position of the air passage through the output shaft, so that the air passage is blocked. When the air passage needs to be opened, the motor 6 is driven in the opposite direction, then the piston 12 is far away from the air passage under the action of the pressure of air or an output shaft, so that the air passage is opened, the position sensor 20 is used for sensing the position of the cabinet door 22, the valve controller 21 is used for calculating the air exhaust volume of the fume hood 23 according to the signal of the position sensor 20, the motor 6 is controlled to rotate through the control actuator 17, the opening of the air passage sealed by the piston 12 is controlled, and therefore the air exhaust volume of the fume hood 23 is guaranteed to be adjusted to be a set value. The position sensor 20 adopts a slide rheostat, so that the resistance value of the slide rheostat is directly adjusted when the cabinet door 22 moves, the change relation of real-time correlation between the resistance output of the slide rheostat and the cabinet door 22 is established, and after the valve controller 21 obtains a voltage signal of a resistance potentiometer transducer, the actuator 17 is driven to act, and the motor 6 is controlled to regulate the speed and stretch the piston 12 to a proper position.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fume chamber is with intelligent ventilation valve which characterized in that: including fume chamber (23) and ventilation valve (11), cabinet door (22) are installed to fume chamber (23) top, cabinet door (22) one side is provided with controller (19), electric connection has position sensor (20) and valve controller (21) on controller (19), ventilation pipe (18) have been run through at fume chamber (23) rear, inside parallel mount has in the middle of ventilation pipe (18) ventilation valve (11), ventilation valve (11) outer end electric connection has executor (17), ventilation valve (11) outside is provided with valve body (14), valve body (14) top is fixed with motor (6), it has connection air cock (1) and vent (10) to run through respectively at valve body (14) both ends, it is provided with outer sealing washer (2) to connect air cock (1) one side, outer sealing washer (2) run through pin (3) zonulae occludens and seal pad (4) and inner sealing washer (5), piston (12) has been run through piston rod (24) in the middle of interior sealing washer (5), piston (12) one side zonulae occludens has compression spring (16), compression spring (16) one side is provided with filter screen (13), be provided with latch segment (7) in valve body (14), latch segment (7) one side is closely fixed with mounting panel (8) through screw (15) and nut (9), vent (10) are passed through mounting panel (8) are closely fixed valve body (14) one end.

2. An intelligent ventilation valve for a ventilation cabinet according to claim 1, wherein: and a resistance point location gauge transmitter is electrically connected between the position sensor (20) and the valve controller (21) through an internal lead.

3. An intelligent ventilation valve for a ventilation cabinet according to claim 1, wherein: the position sensor (20) is a slide rheostat.

4. An intelligent ventilation valve for a ventilation cabinet according to claim 1, wherein: the cavity in the valve body (14) is provided with an air channel.

5. An intelligent ventilation valve for a ventilation cabinet according to claim 1, wherein: the rotary output shaft of the motor (6) is connected to the motion input direction of the piston (12).