CN2607153Y

CN2607153Y - Fire-prevention valve

Info

Publication number: CN2607153Y
Application number: CN 03256634
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 fire resisting damper, having a vane type valve body which comprises an external frame, a vane, a vane axle, an axle housing, a vane splint, a vane reinforcing axle, an interlocking machine, a vane locking baffle and a locking extension spring arranged on the valve gate; wherein, the vane axle is fixed on the shoulder bracket of the external frame; the utility model also comprises an actuating mechanism which consists of a locking device and a heat detector; the vane axle is stainless steel axle, and an elastic stainless steel sealing reed is arranged between the vane and the shoulder bracket; and the locking extension spring is arranged on the external side of the valve; the vane type valve body is connected with the actuating mechanism through a universal axle bale; and the starting handle is connected with the vane axle through the inner hex concaved end of a bolt. When the temperature of airflow reaches the control temperature and then the eutectic device burns out, the heat detector runs, the valve of the utility model can automatically shut off and then output the interlocking control signal; the valve gate also can shut off manually. The utility model has a good sealing performance, long life span and great loading, and can control the 1m<2> valve gate. Therefore, the utility model is suitable in the vent air-conditioner or at the right position of the smoke protecting-discharging system in the major building.

Description

Fire resisting damper

Technical field

The utility model belongs to the fire-protection valve device that a kind of building uses.

Background technology

In some important buildings, almost be equipped with automatic fire alarm system, need fire resisting damper be set at the response position of air conditioner and smoke control system.In use, smoke damper is often opened at ordinary times, and when breaking out of fire, air-flow reaches controlled temperature in the pipeline, fusible link fusing, and the heat detector action is closed valve automatically, stops fire spreading.The output interlock control signal behind the fire, is changed fusible link and is reopened fire resisting damper.Existing fire-protection valve connects executing agency by the vane type valve body, and 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, sheet 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 fire resisting 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, heat detector overcoat, heat detector axle all adopt common iron to make, and promptly get rusty after a period of time, and after the fuse sheet fusing, the heat detector axle promptly can not action message.

The content of utility model

The utility model proposes a kind of improved fire resisting damper, solution is closed extension spring and is arranged on valve inner, the problem of maintenance and replacing spring inconvenience, solve the problem that the valve inleakage is big, fire resistance is poor, sharf easily gets rusty, service life is short, it is low to solve executing agency's bearing capacity, and the blade angle degree easily produces displacement and heat detector and moves insecure problem.

The technical scheme of the utility model fire resisting damper: connect executing agency by the vane type valve body, the vane type valve body comprises outside framework, blade, sharf, axle sleeve, the blade clamping plate, blade is strengthened axle, linkage, blade is closed baffle plate and the extension spring of closing that is arranged on the valve, sharf penetrates on the shaft shoulder support that is fixed on the housing, executing agency comprises locking device and heat detector, it is characterized in that: sharf is the stainless steel blade axle, be equipped with stainless steel elastic packing reed between blade and shaft shoulder support, close extension spring and be arranged on the valve body outside, be connected universal connecting shaft clamp between vane type valve body and the executing agency, open handle and sharf and be fastenedly connected by the recessed end holding screw of hexagonal in the high rigidity.

Brass axle sleeve on the above-mentioned sharf is the brass axle sleeve.

Above-mentioned stainless steel elastic packing reed is basin shape or dish type.

Above-mentioned heat detector is fixed on the base, and the projecting shaft of heat detector is blocked by the heat detector baffle plate, and the extension spring of closing that baffle plate is set at again on the base support is strained, and the other end of heat detector baffle plate is arranged on the base.

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.

Fastening between the connecting axle of above-mentioned universal joint shaft clamp and the mechanism's main shaft by the recessed end holding screw of hexagonal in the high rigidity.

Beneficial effect: valve was closed automatically when 1, gas flow temperature reached controlled temperature in the pipeline.2, output valve shutdown signal and interlock control signal.3, manually opened, close conveniently.4, to unload force rate big for mechanism design, has control 1m2 valve ability.5, because of using stainless steel blade axle, brass axle sleeve valve to have long-term service life, need not use lubricating oil.6, 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.7, because of using stainless steel elastic packing spring leaf valve to have excellent sealing ability.8, the valve closing extension spring is arranged on the valve outside, and convenient for maintaining is changed spring.9, sharf adopts elongated axle, has excellent sealing ability and fire resistance.10, heat detector overcoat, heat detector axle all adopt stainless steel to make, and heat detector has long-term service life.11, because of being connected with valve body, executing agency adopt universal joint shaft clamp, valve blade to open, close flexible, fluent.12, 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 electric control theory figure of the present utility model;

Fig. 7 is the structural representation of the utility model actuating mechanism;

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

The specific embodiment

As shown in Figure 1, 2: this fire resisting damper valve body 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.

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

As shown in Figure 4, the brass axle sleeve on the sharf is the brass axle sleeve, and stainless steel elastic packing reed is basin shape or dish type.

As shown in Figure 5, the connection clamp 32 of going up of universal joint shaft clamp is arranged on the connecting axle 33, and following connection clamp 34 is arranged on the stainless steel blade axle 3.

Shown in Fig. 7,8, executing agency 11 is connected with valve body and adopts universal coupling 12, opens in the high rigidity on the handle the recessed end holding screw 13 of hexagonal and will open handle and be fastened on above 12 of the universal couplings.Heat detector 14 is arranged on valve inner.Electric control circuit comprises microswitch 15, heat-resisting wire 16 as shown in Figure 6, is connected with terminal board 17.Comprise the heat detector 14, the microswitch 15 that are located on the valve in the locking device of executing agency.Locking device comprises opens lockplate 19, Removable hook 20, moving iron core hook 21, compression spring 22, turriform compression spring 23, torsionspring 24.Unlatching lockplate 19 in the locking device is arranged on mechanism's main shaft 25, staple for strap end and Removable hook 20 are sealed, moving iron core hook 21 is arranged on the bolster of base 26, its end joins with the axis of guide 27 that is arranged on base 26 supports, buckle end and Removable hook 20 are sealed, one end of compression spring 22 is arranged on the base 26, the other end pastes mutually with Removable hook 20, turriform compression spring 23 is enclosed within on the axis of guide 27, one end pastes mutually with moving iron core hook 21, torsionspring 24 1 ends are fixed on the base 26, and the other end is fixed on to be opened on the lockplate 19.Heat detector 14 is fixed on the base 26, and the projecting shaft of heat detector 14 is blocked by heat detector baffle plate 28, and baffle plate 28 is set at extension spring 29 tensions on base 26 supports again.The other end of heat detector baffle plate is arranged on the base 26.Manually pull hook 30 is arranged on the base 26, and the closely moving iron core hook 21 of pull hook termination is opened handle 31 and is arranged on mechanism's main shaft 25.Microswitch 15 contacts with switch baffle plate 18.

The course of work: one, valve opening action:

Manually opened valve: staff's driving handle is the rotating mechanism main shaft 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, unlatching lockplate, Removable hook, moving iron core hook are mutually locked, and the Open valve blade is to desired location.

Two, valve closing action 1, heat detector action valve-off: when fire takes place, air-flow reaches controlled temperature in the pipeline, fuse sheet fusing on the heat detector, the heat detector main shaft is thrown off to bottom offset and heat detector baffle plate, under the extension spring effect, the heat detector baffle plate promotes moving iron core hook and rotates counterclockwise and the Removable hook disengagement, under the effect of valve main shaft spring force, lockplate opened by mechanism's main shaft and Removable hook is thrown off, and valve is closed rapidly clockwise.2, valve-off manually: when the staff pulled the key circle, manually pull 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 1., 2. output action signal, 3., 4. binding post exports interlock control signal.

Claims

1, a kind of fire resisting damper, connect executing agency by the vane type valve body, the vane type valve body comprises outside framework, blade, sharf, axle sleeve, the blade clamping plate, blade is strengthened axle, linkage, blade is closed baffle plate and the extension spring of closing that is arranged on the valve, sharf penetrates on the shaft shoulder support that is fixed on the housing, executing agency comprises locking device and heat detector, it is characterized in that: sharf is the stainless steel blade axle, be equipped with stainless steel elastic packing reed between blade and shaft shoulder support, close extension spring and be arranged on the valve body outside, be connected universal connecting shaft clamp between vane type valve body and the executing agency, open handle and sharf and be fastenedly connected by the recessed end holding screw of hexagonal in the high rigidity.

2, fire resisting damper according to claim 1 is characterized in that: the brass axle sleeve on the described sharf is the brass axle sleeve.

3. fire resisting damper according to claim 1 is characterized in that: described stainless steel elastic packing reed is basin shape or dish type.

4, fire resisting damper according to claim 1, it is characterized in that: described heat detector is fixed on the base, the projecting shaft of heat detector is blocked by the heat detector baffle plate, and the extension spring of closing that baffle plate is set at again on the base support is strained, and the other end of heat detector baffle plate is arranged on the base.

5, fire resisting damper 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.

6. fire resisting damper according to claim 1 is characterized in that: fastening by the recessed end holding screw of hexagonal in the high rigidity between the connecting axle of described universal joint shaft clamp and the mechanism's main shaft.