CN214618040U - Novel full-automatic fire damper actuating mechanism - Google Patents
Novel full-automatic fire damper actuating mechanism Download PDFInfo
- Publication number
- CN214618040U CN214618040U CN202120842386.6U CN202120842386U CN214618040U CN 214618040 U CN214618040 U CN 214618040U CN 202120842386 U CN202120842386 U CN 202120842386U CN 214618040 U CN214618040 U CN 214618040U
- Authority
- CN
- China
- Prior art keywords
- gear
- connecting rod
- motor
- shaft
- main shaft
- 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.)
- Active
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a novel full-automatic fire prevention valve actuating mechanism, including base, main shaft, gear box, the main shaft passes the base and is connected with the fire prevention valve block, is connected with first gear shaft through the bearing on the base, is connected with second gear shaft through the bearing on the gear box, and first gear shaft is from last first gear B, first gear A of down having set gradually, second gear shaft is from last second gear A, second gear B of down having set gradually, and the base top is provided with the apron, is provided with first motor and second motor on the apron, and first motor shaft and second motor shaft pass the apron, and first motor shaft is from last ratchet hook, first motor gear of down having set gradually, is provided with second motor gear on the second motor shaft, has link mechanism through set screw swing joint on the base. The utility model discloses novel structure is reasonable, and torsion is big, and the reset time is short, and whole mechanism action is fast, the response is sensitive, valve body switching process is smooth steady, job stabilization nature is good.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to novel full-automatic fire prevention valve actuating mechanism.
Background
The central air-conditioning ventilating duct is a device for air intake and exhaust to each space, and in order to prevent fire from spreading, a fire-proof valve is used to control isolation. The fire valve comprises a valve body and an actuating mechanism fixed outside the valve body (generally fixed above the valve body), wherein a valve plate is arranged in a channel of the valve body, a main shaft is fixed on the valve plate, and the main shaft extends out of the valve body and is connected with the actuating mechanism. The actuating mechanism drives the valve plate to rotate by rotating the main shaft, so that the whole valve body is opened and closed, if the valve plate is parallel to the cross section of the channel in the valve body, the channel is blocked by the valve plate, the valve body is closed, and when the valve plate is perpendicular to the cross section of the channel in the valve body, the opening degree of the whole valve body is maximum. The full-automatic fire damper actuator is arranged on a fire damper or a smoke exhaust fire damper, can be opened or closed for remote operation as long as a control center is powered on, and is widely applied to various building industries such as subways, buildings, airports, business supermarkets, basements and the like. The actuating mechanism of the fire damper in the prior art has the following common problems of small torsion, long reset time, about 15 newtons of torsion, about 50 seconds of reset time, low action speed and slow response of the whole mechanism and delayed opening and closing process of a valve body.
Disclosure of Invention
The utility model aims at solving the technical problem and providing a novel full-automatic fire damper actuating mechanism.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: novel full-automatic fire prevention valve actuating mechanism, including base, main shaft, gear box, its characterized in that: the main shaft penetrates through the base to be connected with a valve plate of the fire damper, and a main shaft gear is arranged on the main shaft; the base is connected with a first gear shaft through a bearing, the gear box is connected with a second gear shaft through a bearing, the first gear shaft is sequentially provided with a first gear B and a first gear A from top to bottom, the second gear shaft is sequentially provided with a second gear A and a second gear B from top to bottom, the first gear B is meshed with the second gear A, and the second gear B is meshed with the main shaft gear; a cover plate is arranged above the base, a first motor and a second motor are arranged on the cover plate, a first motor shaft and a second motor shaft penetrate through the cover plate, the first motor shaft is sequentially provided with a ratchet hook and a first motor gear from top to bottom, and the second motor shaft is provided with a second motor gear; the base is movably connected with a connecting rod mechanism through a positioning screw, the connecting rod mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are connected through pin shafts in sequence, and the other end of the fourth connecting rod is provided with a roller.
Preferably: the main shaft gear is set to be an incomplete gear, the outer ring of the main shaft gear is provided with an arc section, the arc radius of the arc section is smaller than that of a gear root circle of the main shaft gear, and the angle alpha of the arc is set to be 100-130 degrees.
Preferably: and a limiting pin for limiting the main shaft gear is fixedly arranged on the base at the inner side of the connecting rod mechanism.
Preferably: the first motor gear and the second motor gear are both meshed with the first gear A.
Preferably: the ratchet wheel hook penetrates through the first motor shaft and is fastened on the first motor shaft through a screw.
Preferably: and a groove matched with the roller is formed in the bottom plate of the gear box.
Preferably: and a clamping groove is arranged at the position corresponding to the ratchet hook on the first connecting rod.
Preferably: the second connecting rod is set to be 7-shaped, one end of the second connecting rod is movably connected to the base through a positioning screw, and the other end of the second connecting rod is provided with a round hole for connecting a pull rope.
Preferably: the hole in the third connecting rod, which is connected with the second connecting rod, is a waist-shaped hole, and the waist-shaped hole is in sliding fit with the pin shaft.
Compared with the traditional structure, the beneficial effects of the utility model are that: novel and reasonable structure, reliable action, large torsion, short reset time and wide application range. The double motors are used as power sources, the torsion can reach more than 40 newtons, the double motors can be used on a large fire damper with the square of more than 1.5 newtons, the resetting time is within 20 seconds, the actuating mechanism acts quickly, the response is sensitive, the opening and closing processes of the valve body are smooth and stable, and the working stability is good.
Drawings
FIG. 1 is a diagram illustrating the open state of the valve according to the present invention;
FIG. 2 is a view showing the closed state of the valve of the present invention;
FIG. 3 is a schematic view of the main shaft gear structure of the present invention;
in the figure: 1. the gear box comprises a base, 2, a main shaft, 3, a link mechanism, 31, a first connecting rod, 311, a clamping groove, 32, a second connecting rod, 321, a round hole, 322, a positioning screw, 33, a third connecting rod, 331, a kidney-shaped hole, 34, a fourth connecting rod, 4, a main shaft gear, 5, a roller, 6, a gear box, 61, a groove, 7, a second gear shaft, 8, a second gear A, 9, a second gear B, 10, a first gear shaft, 11, a first gear A, 12, a first gear B, 13, a second motor shaft, 14, a second motor gear, 15, a ratchet hook, 16, a first motor shaft, 17, a first motor gear and 18 limiting pins.
Detailed Description
The present invention will be further explained below.
Referring to the attached drawings, the novel full-automatic fire damper actuating mechanism comprises a base 1, a main shaft 2 and a gear box 6, and is characterized in that: the main shaft 2 penetrates through the base 1 to be connected with a valve plate of the fire damper, and a main shaft gear 4 is arranged on the main shaft 2; the base 1 is connected with a first gear shaft 10 through a bearing, the gear box 6 is connected with a second gear shaft 7 through a bearing, the first gear shaft 10 is sequentially provided with a first gear B12 and a first gear A11 from top to bottom, the second gear shaft 7 is sequentially provided with a second gear A8 and a second gear B9 from top to bottom, the first gear B12 is meshed with the second gear A8, and the second gear B9 is meshed with the main shaft gear 4; a cover plate is arranged above the base 1, a first motor and a second motor are arranged on the cover plate, a first motor shaft 16 and a second motor shaft 13 penetrate through the cover plate, the first motor shaft 16 is sequentially provided with a ratchet hook 15 and a first motor gear 17 from top to bottom, and the second motor shaft 13 is provided with a second motor gear 14; the base 1 is movably connected with a link mechanism 3 through a positioning screw 322, the link mechanism 3 comprises a first connecting rod 31, a second connecting rod 32, a third connecting rod 33 and a fourth connecting rod 34, the first connecting rod 31, the second connecting rod 32, the third connecting rod 33 and the fourth connecting rod 34 are connected through pin shafts in sequence, and the other end of the fourth connecting rod 34 is provided with a roller 5.
In the preferred embodiment, the main shaft gear 4 is an incomplete gear, an arc section is arranged on the outer ring of the main shaft gear 4, the arc radius of the arc section is smaller than the radius of the root circle of the main shaft gear 4, and the angle α of the arc is set to be 100-130 °.
In the preferred embodiment, a limit pin 18 for limiting the spindle gear 4 is fastened on the inner base 1 of the link mechanism 3.
In the preferred embodiment, the first motor gear 17 and the second motor gear 14 are both meshed with the first gear a 11.
In the preferred embodiment, the ratchet hook 15 passes through the first motor shaft 16 and is fastened to the first motor shaft 16 by screws.
In the preferred embodiment, the bottom plate of the gear box 6 is provided with a groove 61 matched with the roller 5.
In the preferred embodiment, a locking slot 311 is disposed on the first link 31 at a position corresponding to the ratchet hook 15.
In this preferred embodiment, the second connecting rod 32 is set to be 7-shaped, one end of the second connecting rod 32 is movably connected to the base 1 through a positioning screw 322, and the other end is provided with a round hole 321 for connecting a cable.
In the preferred embodiment, the hole of the third link 33 connected to the second link 32 is a kidney-shaped hole 331, and the kidney-shaped hole 331 is slidably engaged with the pin.
In specific implementation, before the fire damper is opened, the novel full-automatic fire damper actuator drives the roller 5 to be embedded into the special groove 61 of the gear box 6 by the fourth connecting rod 34, so that the main shaft gear 4 is tightly meshed with the second gear B9 of the gear box 6. When the DC24V power supply is switched on to open the valve, the first motor and the second motor are started simultaneously, the first motor gear 17 and the second motor gear 14 rotate clockwise to drive the first gear A11 and the first gear B12 of the gear box 6 to rotate anticlockwise, the first gear B12 drives the second gear A8 and the second gear B9 to rotate clockwise, and the second gear B9 drives the main shaft gear 4 to rotate anticlockwise. When the valve blade is opened to 90 degrees, the main shaft cam cuts off the micro-switch power supply, at the moment, the valve stays at 90 degrees under the resistance of the gear box and the motor, and the valve is opened successfully.
The utility model discloses ratchet hook 15 has been designed on the first motor shaft, and when the conflagration dangerous situation took place, the motor anticlockwise rotation of switch-on DC24V power, ratchet hook 15 drove first connecting rod 31 and removes, and first connecting rod 31 drives second connecting rod 32 and removes, and second connecting rod 32 drives third connecting rod 33 and removes, and third connecting rod 33 drives fourth connecting rod 34 and removes, makes gyro wheel 5 and gear box recess 61 separate. At this time, the gear box 6 swings around the first gear shaft 10, the main shaft gear 4 and the second gear B9 are disengaged, the main shaft gear 4 is reset under the action of the tension spring a, and the position is limited by the limit pin 18. The fireproof valve blade loses the resistance of the gear box and the motor, the valve is closed instantly under the action of the tension spring B, and two groups of closing signals are output simultaneously.
The utility model discloses second connecting rod 32 one end is provided with the round hole 321 that is used for connecting the cable, but manual cable control closes the valve during the power failure. Simultaneously the utility model discloses dispose the temperature sensor, when indoor temperature reached 70 ℃ or 280 ℃, the temperature sensor moved in the twinkling of an eye, made main shaft gear 4 and second gear B9 separate, also can closed the valve.
The above embodiments of the present invention are only examples for clearly illustrating the present invention, but not for limiting the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (9)
1. Novel full-automatic fire prevention valve actuating mechanism, including base (1), main shaft (2), gear box (6), its characterized in that: the main shaft (2) penetrates through the base (1) to be connected with a valve plate of the fire damper, and a main shaft gear (4) is arranged on the main shaft (2); the gear box is characterized in that a first gear shaft (10) is connected to the base (1) through a bearing, a second gear shaft (7) is connected to the gear box (6) through a bearing, a first gear B (12) and a first gear A (11) are sequentially arranged on the first gear shaft (10) from top to bottom, a second gear A (8) and a second gear B (9) are sequentially arranged on the second gear shaft (7) from top to bottom, the first gear B (12) is meshed with the second gear A (8), and the second gear B (9) is meshed with the main shaft gear (4); a cover plate is arranged above the base (1), a first motor and a second motor are arranged on the cover plate, a first motor shaft (16) and a second motor shaft (13) penetrate through the cover plate, the first motor shaft (16) is sequentially provided with a ratchet hook (15) and a first motor gear (17) from top to bottom, and a second motor gear (14) is arranged on the second motor shaft (13); the base (1) is movably connected with a connecting rod mechanism (3) through a positioning screw (322), the connecting rod mechanism (3) comprises a first connecting rod (31), a second connecting rod (32), a third connecting rod (33) and a fourth connecting rod (34), the first connecting rod (31), the second connecting rod (32), the third connecting rod (33) and the fourth connecting rod (34) are sequentially connected through a pin shaft, and the other end of the fourth connecting rod (34) is provided with a roller (5).
2. The novel full-automatic fire damper actuator of claim 1, wherein: the main shaft gear (4) is set to be an incomplete gear, an arc section is arranged on the outer ring of the main shaft gear (4), the arc radius of the arc section is smaller than that of a root circle of the main shaft gear (4), and the angle alpha of the arc is set to be 100-130 degrees.
3. The novel full-automatic fire damper actuator of claim 1, wherein: and a limiting pin (18) for limiting the main shaft gear (4) is fixedly arranged on the base (1) at the inner side of the connecting rod mechanism (3).
4. The novel full-automatic fire damper actuator of claim 1, wherein: the first motor gear (17) and the second motor gear (14) are both meshed with the first gear A (11).
5. The novel full-automatic fire damper actuator of claim 1, wherein: the ratchet wheel hook (15) penetrates through the first motor shaft (16) and is fastened on the first motor shaft (16) through a screw.
6. The novel full-automatic fire damper actuator of claim 1, wherein: and a groove (61) matched with the roller (5) is formed in the bottom plate of the gear box (6).
7. The novel full-automatic fire damper actuator of claim 1, wherein: a clamping groove (311) is arranged at the position, corresponding to the ratchet hook (15), on the first connecting rod (31).
8. The novel full-automatic fire damper actuator of claim 1, wherein: the second connecting rod (32) is arranged to be 7-shaped, one end of the second connecting rod (32) is movably connected to the base (1) through a positioning screw (322), and the other end of the second connecting rod is provided with a round hole (321) for connecting a pull cable.
9. The novel full-automatic fire damper actuator of claim 1, wherein: the hole that is connected with second connecting rod (32) on third connecting rod (33) sets up to waist shape hole (331), waist shape hole (331) and round pin axle sliding fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120842386.6U CN214618040U (en) | 2021-04-23 | 2021-04-23 | Novel full-automatic fire damper actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120842386.6U CN214618040U (en) | 2021-04-23 | 2021-04-23 | Novel full-automatic fire damper actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214618040U true CN214618040U (en) | 2021-11-05 |
Family
ID=78404841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120842386.6U Active CN214618040U (en) | 2021-04-23 | 2021-04-23 | Novel full-automatic fire damper actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214618040U (en) |
-
2021
- 2021-04-23 CN CN202120842386.6U patent/CN214618040U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102058079B1 (en) | Smoke extraction system with ventilation and fire suppression damper | |
| NO147975B (en) | ELECTRICAL HEATING ELEMENT | |
| CN214618040U (en) | Novel full-automatic fire damper actuating mechanism | |
| JPH04347083A (en) | Globe valve | |
| CN207500489U (en) | A kind of remote control fire control smoke exhausting valve | |
| CN219262109U (en) | Automatically controlled ware of windowing that can automatic separation and reunion | |
| EP3378538A1 (en) | A pressure regulating unit for regulating pressure resulted from a fire in a room | |
| CN208056892U (en) | A kind of wooden heat-insulating fireproof door hinge | |
| CN209444824U (en) | Smoke exhaust fire damper and smoke-exhaust fire system | |
| KR200454596Y1 (en) | Damper wing switch | |
| CN111734278B (en) | Prevent fire door that unexpected closed | |
| CN111706231B (en) | Prevent fire door convenient to ventilate | |
| CN201747690U (en) | Cylinder with manual emergency operation mechanism | |
| CN204876987U (en) | Pivot formula system of windowing | |
| CN2444038Y (en) | Opening and clossing system for air-vent of automatic exhausting flue and exchanging air at manual machinery | |
| CN201059125Y (en) | Automatic window opener | |
| CN209100757U (en) | A kind of automatic executing agency for smoke exhaust fire damper | |
| CN211976020U (en) | Manual control mechanism of valve | |
| CN206754550U (en) | A kind of exhaust smoke valve steel cable Yuan Kong executing agencies | |
| CN219344436U (en) | Granary shed roof switching device | |
| CN212249656U (en) | Walk-in fire-proof box self-closing door system | |
| CN220151964U (en) | Adjustable non-return fire-proof valve | |
| CN212177928U (en) | Labor-saving pneumatic pipeline ball valve | |
| CN219773940U (en) | Manual-automatic clutch structure of electric control window opener | |
| CN105967033B (en) | A kind of two-way closure linkage mine safety door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |