CN203272976U - Actuator of fire resisting damper - Google Patents
Actuator of fire resisting damper Download PDFInfo
- Publication number
- CN203272976U CN203272976U CN201320309771XU CN201320309771U CN203272976U CN 203272976 U CN203272976 U CN 203272976U CN 201320309771X U CN201320309771X U CN 201320309771XU CN 201320309771 U CN201320309771 U CN 201320309771U CN 203272976 U CN203272976 U CN 203272976U
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- CN
- China
- Prior art keywords
- cam
- base
- torsion spring
- baffle plate
- actuator
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an actuator of a fire resisting damper. The actuator of the fire resisting damper comprises a base (1), a cam (2), a baffle (3), a shaft sleeve (4), a link gear and a first torsion spring (5) which is used for making the cam (2) rotate towards the baffle (3). The base (1) is provided with a through hole. A main shaft of the fire resisting damper penetrates through the through hole of the base (1), and the upper end of the main shaft is fixed with the shaft sleeve (4). The cam (2) is fixed on the shaft sleeve (4) and provided with a gap (7). The baffle (3) is fixed on the base (1). The link gear comprises a stop column (8) used for being matched with the gap (7) of the cam (2) to limit the motion of the cam (2) towards the baffle (3). The first torsion spring (5) is located above the cam (2). The actuator of the fire resisting damper can protect the baffle (3) and prolong service life.
Description
Technical field
The utility model relates to building ventilation and smoke evacuation field, is specifically a kind of actuator of fire-closing valve.
Background technique
Generally be provided with fire-closing valve in the ventilation duct of high-rise.Fire-closing valve comprises valve body, is provided with valve block in the passage of valve body, is fixed with main shaft on valve block, and main shaft stretches out outside valve body and is connected with actuator.Actuator is by rotating spindle, and the band moving valve plate rotates, thereby regulates the switching of whole valve body, when as vertical with channel side wall in valve body in valve block, valve block blocks passage, and valve body is closed, when the channel side wall in valve block and valve body is parallel, the opening fully of whole valve body.
The fireproof valve executing mechanism of prior art comprises base, cam, baffle plate, axle sleeve, torsion spring and linking mechanism, base is provided with through hole, the main shaft of fire-closing valve passes the through hole of base and main shaft upper end and axle sleeve and fixes, cam is fixed on axle sleeve, cam is provided with breach, baffle plate is fixed on base, the upper end of torsion spring is connected with cam, the lower end of torsion spring is connected with base, there is one in cam to the trend of baffle plate motion under the effect of torsion spring, linking mechanism comprises that one is used for coordinating to limit cam with cam notch to the shelves post of baffle plate motion.
The operating principle of this fireproof valve executing mechanism is: before setting in motion, the shelves post hook of the breach of cam and linking mechanism, when the condition of a fire occurring, linking mechanism unclamps a grade post, cam loses under the effect that is limited in torsion spring of grade post rotation rapidly and finally abuts on baffle plate, warp beam sleeve drives the main shaft 90-degree rotation simultaneously, finally rotates the valve block of fire-closing valve, with the switching of switching valve.
There is following defective in the fireproof valve executing mechanism of prior art: because the power of torsion spring is very large, like this, the cam fast rotational can produce very large impact force to baffle plate when pushing against with baffle plate, and the contact position of cam and baffle plate is exactly the force bearing point of impact force, this distance of base from the force bearing point to the baffle plate is exactly the arm of force, because the mounting point of cam is higher, therefore the arm of force of baffle plate is large, the moment of bearing is also very large, long-term use is obvious to the destruction of baffle plate, reduction of service life.
Summary of the invention
The technical problems to be solved in the utility model is that a kind of actuator of the fire-closing valve that can protect baffle plate, increase the service life is provided.
Technical solution of the present utility model is, a kind of actuator with fire-closing valve of following structure is provided, it comprises base, cam, baffle plate, axle sleeve, linking mechanism and is used for making cam to the first torsion spring of baffle plate rotation, base is provided with through hole, the main shaft of fire-closing valve passes the through hole of base and main shaft upper end and axle sleeve and fixes, cam is fixed on axle sleeve, cam is provided with breach, baffle plate is fixed on base, linking mechanism comprises that one is used for coordinating to limit cam with cam notch to the shelves post of baffle plate motion, and the first torsion spring is positioned at above cam.
After adopting above structure, the actuator of the utility model fire-closing valve compared with prior art has the following advantages:
Be positioned at the below of the first torsion spring due to cam, like this, with respect to prior art, the descended level height of first torsion spring of cam, therefore cam height against the impact force point of action of baffle plate under the first torsion spring effect will reduce, and be exactly in fact to have shortened baffle plate to be subject to the arm of force of impact force, and then reduced the moment that baffle plate is subject to the impact force of cam, avoid baffle plate to be knocked destruction, extended the working life of baffle plate.
As improvement, the upper end of the first torsion spring is connected with axle sleeve, and the lower end of the first torsion spring is connected with baffle plate, and this is simple in structure, and is easy to assembly.
Description of drawings
Fig. 1 is the structural representation of the actuator of fire-closing valve of the present utility model.
Fig. 2 is the plan structure schematic diagram of a state of the actuator of fire-closing valve of the present utility model.
Fig. 3 is the plan structure schematic diagram of another state of the actuator of fire-closing valve of the present utility model.
Shown in figure 1, base, 2, cam, 3, baffle plate, 4, axle sleeve, the 5, first torsion spring, 6, main shaft, 7, breach, 8, the shelves post, 9, electromagnet, 10, rocker, 11, the rocker axle, 12, swing arm, 13, arm shaft, 14, mandrel, 15, stage clip, 16, bayonet socket, the 17, second torsion spring.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As the actuator of Fig. 1, Fig. 2, fire-closing valve of the present utility model shown in Figure 3, it comprises base 1, cam 2, baffle plate 3, axle sleeve 4, linking mechanism and is used for making cam 2 to the first torsion spring 5 of baffle plate 3 rotations.Base 1 is fixed on the valve body of fire-closing valve.Base 1 is provided with through hole, and it is fixing that the main shaft 6 of fire-closing valve passes the through hole of base 1 and main shaft 6 upper ends and axle sleeve 4.Cam 2 is fixed on axle sleeve 4, and cam 2 is provided with breach 7, and baffle plate 3 is fixed on base 1.The first torsion spring 5 is positioned at cam 2 tops.
The Placement of the first torsion spring 5 and connecting position are equipped with multiple, and in the present embodiment, axle sleeve 4 is provided with mounting hole, and the upper end of the first torsion spring 5 is inserted and is hooked in the mounting hole of axle sleeve 4, the lower end of the first torsion spring 5 and baffle plate 3 hooks.Certainly, can also adopt other Placement, be fixedly connected with axle sleeve 4 as welding as the upper end of the first torsion spring 5, and can directly establish mounting hole on base 1, the lower end of the first torsion spring 5 can also directly be hooked in the mounting hole of base 1, etc.
Linking mechanism comprises that one is used for coordinating to limit cam 2 with cam 2 breach 7 to the shelves post 8 of baffle plate 3 motions.
The structure of linking mechanism has a variety of, and the present embodiment linking mechanism structure is as follows: it comprises an electromagnet 9, a rocker 10, a rocker axle 11, a swing arm 12 and an arm shaft 13.Electromagnet 9, rocker axle 11, arm shaft 13 all are fixed on base 1, and an end of rocker 10 is that rounded end rotatably is linked on rocker axle 11, and the stage casing of swing arm 12 rotatably is engaged on arm shaft 13.The mandrel 14 of electromagnet 9 be connected with an end of swing arm 12 and this end of the housing of electromagnet 9 and swing arm 12 between be provided with stage clip 15, the other end of swing arm 12 is provided with bayonet socket 16, be provided with the second torsion spring 17 between rocker 10 and base 1, the second torsion spring 17 is linked on rocker axle 11, and the non-rounded end of rocker 10 blocks with the bayonet socket 16 of swing arm 12 under the effect of the second torsion spring 17.And just be fixed on rocker 10 with the shelves post 8 of breach 7 hooks of cam 2.The course of action that this linking mechanism unclamps grade post 8 is: when the condition of a fire occurring, electromagnet 9 energisings, the mandrel 14 of electromagnet 9 inside contracts, driving swing arm 12 rotates around arm shaft 13, swing arm 12 is lifted with an end of bayonet socket 16 the non-rounded end disengaging that makes bayonet socket 16 and rocker 10, the spacing rocker 10 of bayonet socket 16 that loses swing arm 12 rotates under the effect of the second torsion spring 17, and then a drive shelves post 8 unclamps.
Claims (2)
1. the actuator of a fire-closing valve, it comprises base (1), cam (2), baffle plate (3), axle sleeve (4), linking mechanism and be used for making cam (2) to first torsion spring (5) of baffle plate (3) rotation, base (1) is provided with through hole, it is fixing that the main shaft of fire-closing valve (6) passes the through hole of base (1) and main shaft (6) upper end and axle sleeve (4), cam (2) is fixed on axle sleeve (4), cam (2) is provided with breach (7), baffle plate (3) is fixed on base (1), linking mechanism comprises that one is used for coordinating with cam (2) breach (7) with the shelves post (8) of restriction cam (2) to baffle plate (3) motion, it is characterized in that: the first torsion spring (5) is positioned at above cam (2).
2. the actuator of fire-closing valve according to claim 1, it is characterized in that: the upper end of the first torsion spring (5) is connected with axle sleeve (4), and the lower end of the first torsion spring (5) is connected with baffle plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309771XU CN203272976U (en) | 2013-05-31 | 2013-05-31 | Actuator of fire resisting damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309771XU CN203272976U (en) | 2013-05-31 | 2013-05-31 | Actuator of fire resisting damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272976U true CN203272976U (en) | 2013-11-06 |
Family
ID=49503388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320309771XU Expired - Lifetime CN203272976U (en) | 2013-05-31 | 2013-05-31 | Actuator of fire resisting damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272976U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994268A (en) * | 2014-05-29 | 2014-08-20 | 靖江市八达暖通设备制造有限公司 | Ratchet type close control actuator for fire damper and smoke exhaust damper |
| CN106885030A (en) * | 2017-04-26 | 2017-06-23 | 毛天明 | It is a kind of to there is power-off to activate the anti-fire smoke expelling valve YE with auto-reset function |
| CN107228220A (en) * | 2017-07-17 | 2017-10-03 | 天津市金中基暖通净化设备有限公司 | A kind of fireproof valve executing mechanism |
| CN109404595A (en) * | 2018-12-27 | 2019-03-01 | 宁波东灵水暖空调配件有限公司 | Auomatic fixing chain formula actuating mechanism of exhaust smoke valve |
-
2013
- 2013-05-31 CN CN201320309771XU patent/CN203272976U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994268A (en) * | 2014-05-29 | 2014-08-20 | 靖江市八达暖通设备制造有限公司 | Ratchet type close control actuator for fire damper and smoke exhaust damper |
| CN103994268B (en) * | 2014-05-29 | 2018-08-17 | 靖江市八达暖通设备制造有限公司 | Anti-fire smoke expelling valve ratchet-type closely controls actuator |
| CN106885030A (en) * | 2017-04-26 | 2017-06-23 | 毛天明 | It is a kind of to there is power-off to activate the anti-fire smoke expelling valve YE with auto-reset function |
| CN106885030B (en) * | 2017-04-26 | 2022-12-30 | 毛天明 | Fire prevention smoke damper electric actuator who has outage actuation and automatic re-setting function |
| CN107228220A (en) * | 2017-07-17 | 2017-10-03 | 天津市金中基暖通净化设备有限公司 | A kind of fireproof valve executing mechanism |
| CN107228220B (en) * | 2017-07-17 | 2023-09-01 | 天津市金中基暖通净化设备有限公司 | Fire prevention valve actuating mechanism |
| CN109404595A (en) * | 2018-12-27 | 2019-03-01 | 宁波东灵水暖空调配件有限公司 | Auomatic fixing chain formula actuating mechanism of exhaust smoke valve |
| CN109404595B (en) * | 2018-12-27 | 2024-01-12 | 宁波东灵水暖空调配件有限公司 | Automatic upper chain type smoke exhaust valve actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |