CN2607158Y

CN2607158Y - Automatic reset smoke-proof valve

Info

Publication number: CN2607158Y
Application number: CN 03256640
Authority: CN
Inventors: 郎良成
Original assignee: Jiangsu Tianbao Air Conditioning Ventilation Engineering Co Ltd
Current assignee: Jiangsu Tianbao Air Conditioning Ventilation Engineering Co Ltd
Priority date: 2003-04-30
Filing date: 2003-04-30
Publication date: 2004-03-24
Anticipated expiration: 2013-04-30

Abstract

The utility model relates to a self righting smokeproof damper which comprises a vane type valve, a universal interlocking bale and an actuating mechanism which are connected in sequence. The vane type valve consists of an external frame, a vane, a vane axle, an axle housing and an extension spring; and the actuating mechanism has a locking device, an electrical control circuit and a reset mechanism, wherein, a direct current electromagnet, a direct current micro-motor and a microswitch in the electrical control circuit are connected with a connecting terminal plate and a cam switch through a heat-resistant lead; and the direct current electromagnet and the direct current micro-motor are respectively connected with an over-voltage protection diode. Through the central control, the valve of the utility model can automatically shut off the valve gate and reset to the full open and drive the ventilating air-conditioner fan to run; the valve gate can also be shut off or opened manually; moreover, the utility model can prevent the damage of over-voltage caused by sudden power off; therefore, the electrical components are effectively protected. And the utility model has a good sealing performance, long life span and few leaking quantities, and can control the 1 m <2> valve gate. Therefore, the utility model is suitable in the vent air-conditioner or in the smoke protecting-discharging system in the major building.

Description

The type that automatically resets smoke damper

Technical field

The utility model belongs to the smoke damper door gear that a kind of building uses.

Background technology

In some important buildings, almost be equipped with automatic fire alarm system, need smoke damper be set at the response position of air conditioner and smoke control system.In use, smoke damper is often opened at ordinary times, when breaking out of fire, sends the signal of telecommunication by fire protection control center and makes executing agency's action, and valve is closed automatically, stops flue gas to spread.The output Coordinated Control Signal behind the fire, reopens smoke damper.Existing smoke damper is linked in sequence and is formed by vane type valve body, universal joint shaft clamp, executing agency's three parts, the vane type valve body comprises housing, blade, sharf, axle sleeve, extension spring, there are locking device, electric control circuit and resetting-mechanism in executing agency, following technological deficiency is arranged: 1, close extension spring and be arranged on valve inner, maintenance and replacing spring must be pulled down valve from pipeline, very inconvenient.2, blade does not adopt elongated axle to reinforce, and rigidity is low, be subjected to blast and be heated after all yielding, the valve inleakage is big, fire resistance is poor, and is especially obvious for big specification valve.3, sharf adopts common iron to make, because smoke damper is in non-action state after installing for a long time, less than two trienniums, sharf gets rusty, and blade promptly can not be opened or be closed, and smoke damper performs practically no function.4, place, the operation slit of valve blade and blade shaft shoulder support does not have reliable seal approach, and the valve inleakage is big.5, the unlatching handle of executing agency and blade main shaft adopt plain screw fastening, and bearing capacity is low, cause valve opening, when closing, and the blade angle degree easily produces displacement.6, the inner hook of executing agency, back shaft adopt common iron to make, and the back executing agency of getting rusty is a cisco unity malfunction.7, in the actuating mechanism controls circuit, diode overvoltage protection loop is not set.The action of DC electromagnet, direct current micromotor finishes, and originally the coil of connecting with DC voltage disconnects suddenly, and the overvoltage that the induction of coil two ends produces will be destroyed and insulate and the adverse consequences of generation damage executing agency and control centre's electrical equipment.

The utility model content

The utility model provides a kind of improved type smoke damper that automatically resets, and solution actuating mechanism controls circuit overvoltage is fragile, extension spring keeps in repair and it is inconvenient to change, the valve inleakage is big, fire resistance is poor, service life is short, seal approach is unreliable, bearing capacity is low, the blade angle degree easily produces the problem of displacement.

The technical solution of the utility model: this valve is by the vane type valve body, the universal joint shaft clamp, executing agency's three parts are linked in sequence and form, the vane type valve body comprises housing, blade, sharf, axle sleeve, extension spring, there is locking device in executing agency, electric control circuit and resetting-mechanism, it is characterized in that: the unlatching lockplate in the locking device is arranged on mechanism's main shaft, staple for strap end and Removable hook are sealed, moving iron core hook is arranged on the bolster of base, its end and DC electromagnet join, buckle end and Removable hook are sealed, one end of compression spring is arranged on the base, the other end pastes mutually with Removable hook, turriform compression spring housing is on DC electromagnet, one end pastes mutually with moving iron core hook, torsionspring one end is fixed on the base, the other end is fixed on to be opened on the lockplate, manually pull hook is arranged on the base, the closely moving iron core hook of pull hook termination, opening handle is arranged on mechanism's main shaft, microswitch contacts with the switch baffle plate, and resetting-mechanism comprises direct-flow micromachine, mechanical reduction gear, the universal joint shaft clamp that resets comprises, under connect clamp and connecting axle and restoring link;

DC electromagnet in the electric control circuit, direct current micromotor, microswitch connect terminal board and cam switch through heat-resisting wire, and DC electromagnet is connected with the overvoltage protection diode respectively with direct current micromotor.

Be equipped with U-shaped or dish type stainless steel elastic packing reed between above-mentioned blade and shaft shoulder support.

Above-mentioned sharf is the stainless steel blade axle, and axle sleeve is the brass axle sleeve.

Above-mentioned extension spring is arranged on the valve outside.

Between above-mentioned unlatching handle and the universal joint shaft clamp, be fastenedly connected by the recessed end holding screw of hexagonal in the high rigidity.

The connection clamp of going up of above-mentioned universal joint shaft clamp is arranged on the connecting axle, and following connection clamp is arranged on the stainless steel blade axle.

Beneficial effect: 1, realize closing, automatically reset to fully open position automatically by the fire protection control center by-pass valve control.2, the output valve signal of closing, output reseting procedure signal when resetting.3, many deck valves door can realize moving simultaneously or connecting action.4, manually opened, close conveniently.5, to unload force rate big for mechanism design, has control 1m ²The valve ability.6, DC electromagnet, direct current micromotor operating current only need 0.4A.7, because of using stainless steel blade axle, brass axle sleeve valve to have long-term service life.8, the moving iron core of stainless steel is linked up with, the stainless steel back shaft because of using, the stainless steel Removable hook, and executing agency has long-term service life, does not need multipurpose lubricant.9, because of using stainless steel elastic packing spring leaf valve to have excellent sealing ability.10, the valve closing extension spring is arranged on the valve outside, and convenient for maintaining is changed spring.11, sharf adopts elongated axle, has excellent sealing ability and fire resistance.12, being provided with diode overvoltage protection loop in the electric control circuit can effectively protect executing agency, fire protection control center electrical equipment not to be damaged.13, because of being connected with valve body, executing agency adopt universal joint shaft clamp, valve blade to open, close flexible, fluent.14, because of the connecting axle of fastening unlatching handle of the recessed end holding screw of hexagonal and universal joint shaft clamp in the employing high rigidity, bearing capacity is big, valve blade unlatching, unshift when closing, and the blade opening angle is constant all the time.Be applicable to the corresponding site setting of the air conditioner and the smoke control system of important building.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the profile of A-A among Fig. 1;

Fig. 3 is the upward view of Fig. 1;

Fig. 4 is the profile of B-B among Fig. 2;

Fig. 5 is the enlarged drawing of Fig. 1;

Fig. 6 is the electric control circuit schematic diagram;

Fig. 7 is the structural representation of executing agency;

Fig. 8 is the profile of C-C among Fig. 7;

Fig. 9 is the restoring link schematic diagram that executing agency links to each other with resetting-mechanism;

Figure 10 is the resetting-mechanism structural representation;

Figure 11 is the profile of D-D among Figure 10.

The specific embodiment

As shown in Figure 1, 2: this smoke damper valve body that automatically resets is closed baffle plate 9 and is formed by outside framework 1, blade 2, stainless steel blade axle 3, stainless steel elastic packing reed 4, brass axle sleeve 5, blade clamping plate 6, blade reinforcement axle 7, linkage 8, blade.Executing agency 11 is connected with valve body and adopts universal joint shaft clamp 12, and the recessed end holding screw 13 of hexagonal will be opened handle and be fastened on above 12 of the universal joint shaft clamps in the high rigidity.

As shown in Figure 3, valve closing extension spring 10 is arranged on the valve outside.

As shown in Figure 4, sharf 3 is stainless steel blade axles, is equipped with U-shaped or basin shape stainless steel elastic packing reed 4 between blade and shaft shoulder support, and the flat end of stainless steel elastic packing reed withstands on the shaft shoulder bracket base, and cambered top end is against blade edge portion.Axle sleeve 5 is brass axle sleeves.

As shown in Figure 5, the connection clamp 37 of going up of universal joint shaft clamp is arranged on the connecting axle 38, and following connection clamp 39 is arranged on the stainless steel blade axle 3.

As shown in Figure 6, electric control circuit comprises DC electromagnet 14, direct current micromotor 15, diode 16, microswitch 17-1,17-2, heat-resisting wire 18, terminal board 19, cam switch 20.

Shown in Fig. 7,8, executing agency partly comprises locking device 21 and resetting-mechanism 22.Comprise DC electromagnet 14, microswitch 17-1 in the locking device.Locking device comprises opens lockplate 23, Removable hook 24, moving iron core hook 25, compression spring 26, turriform compression spring 27, torsionspring 28.Unlatching lockplate 23 in the locking device is arranged on mechanism's main shaft 29, staple for strap end and Removable hook 24 are sealed, moving iron core hook 25 is arranged on the bolster of base 30, its end and DC electromagnet 14 join, buckle end and Removable hook 24 are sealed, one end of compression spring 26 is arranged on the base 30, and the other end pastes mutually with Removable hook 24.Turriform compression spring 27 is enclosed within on the DC electromagnet 14, and an end pastes mutually with moving iron core hook 25, and torsionspring 28 1 ends are fixed on the base 30, and the other end is fixed on to be opened on the lockplate 23.Manually pull hook 31 is arranged on the base 30, and the closely moving iron core hook 25 of pull hook termination is opened handle 32 and set up an organization on the main shaft 29, microswitch 17-1 be installed on the base 30 be installed in unlatching lockplate 23 on switch baffle plate 33 contact.

Shown in Fig. 9,10,11, resetting-mechanism comprises mechanical reduction gear 34, the restoring link 35 that direct current micromotor 15 is connected with direct current micromotor, one end of restoring link 35 links to each other with the final stage gear 36 of speed change gear, the other end links to each other with crank on the mechanism main shaft 29, cam switch 20 is installed on the axle of final stage gear 36, and microswitch 17-2 contacts with cam switch 20.

The course of work:

One, valve opening action: 1, manually opened valve, staff's driving handle counterclockwise rotates, and the Open valve blade is to fully open position.2, the electric opening valve, fire protection control center sends the signal of telecommunication (DC24V) by binding post 4 and 2 input direct current micromotors, drag restoring link by mechanical reduction gear, the action of lead agency spindle axis counterclockwise, be arranged on the unlatching lockplate on mechanism's main shaft, promote the swing of Removable hook and moving iron core hook, after the valve blade is opened into fully open position, under compression spring and the effect of turriform spring force, open lockplate, Removable hook, moving iron core hook is mutually locked, and direct current micromotor works under the cam switch effect, returns to the home position until restoring link, under the cam switch effect, direct current micromotor quits work.

In the electronic reseting procedure, binding

post

2,3 output reseting procedure signals.After the electronic end that resets, binding post 6 output series connection homing action signals.

Reseting procedure finishes, and when the direct current micromotor outage quit work, the diode discharge loop in the circuit consumed in the resistance of self the stored energy of direct current micromotor inductance.

Two, valve closing action: 1, electronic valve-off, when fire protection control center sends the signal of telecommunication (DC24V) by 1. and 2. input dc power magnet of binding post, DC electromagnet moves the iron core adhesive, affect moving iron core hook to throw off with Removable hook, executing agency's main shaft is opened lockplate and Removable hook disengagement under the effect of valve main shaft spring force, and valve is closed rapidly clockwise.2, valve-off manually, when the staff pulled the key circle, manually drag hook drove moving iron core hook and throws off with Removable hook, and under the effect of valve main shaft spring force, mechanism's main shaft is opened lockplate and Removable hook disengagement, and valve is closed rapidly clockwise.Behind the valve closing binding post 7., 8. output action signal, 4., 5. binding post exports series connection closing motion signal, when the DC electromagnet outage quit work, the diode discharge loop in the circuit made the stored energy consumption of DC electromagnet inductance in the resistance of self.

Claims

1. type smoke damper that automatically resets, by the vane type valve body, the universal joint shaft clamp, executing agency's three parts are linked in sequence and form, the vane type valve body comprises housing, blade, sharf, axle sleeve, extension spring, there is locking device in executing agency, electric control circuit and resetting-mechanism, it is characterized in that: the unlatching lockplate in the locking device is arranged on mechanism's main shaft, staple for strap end and Removable hook are sealed, moving iron core hook is arranged on the bolster of base, its end and DC electromagnet join, buckle end and Removable hook are sealed, one end of compression spring is arranged on the base, the other end pastes mutually with Removable hook, turriform compression spring housing is on DC electromagnet, one end pastes mutually with moving iron core hook, torsionspring one end is fixed on the base, the other end is fixed on to be opened on the lockplate, manually pull hook is arranged on the base, the closely moving iron core hook of pull hook termination, opening handle is arranged on mechanism's main shaft, microswitch contacts with the switch baffle plate, and resetting-mechanism comprises direct-flow micromachine, mechanical reduction gear and restoring link;

2, the type smoke damper that automatically resets according to claim 1 is characterized in that: be equipped with U-shaped or dish type stainless steel elastic packing reed between described blade and shaft shoulder support.

3, the type smoke damper that automatically resets according to claim 1, it is characterized in that: described sharf is the stainless steel blade axle, axle sleeve is the brass axle sleeve.

4, the type smoke damper that automatically resets according to claim 1 is characterized in that: described extension spring is arranged on the valve outside.

5, the type smoke damper that automatically resets according to claim 1 is characterized in that: between described unlatching handle and the universal joint shaft clamp, be fastenedly connected by the recessed end holding screw of hexagonal in the high rigidity.

6, the type smoke damper that automatically resets according to claim 1 is characterized in that: the connection clamp of going up of described universal joint shaft clamp is arranged on the connecting axle, and following connection clamp is arranged on the stainless steel blade axle.