CN219493073U - Fire prevention valve of adjustable amount of wind - Google Patents
Fire prevention valve of adjustable amount of wind Download PDFInfo
- Publication number
- CN219493073U CN219493073U CN202320185174.4U CN202320185174U CN219493073U CN 219493073 U CN219493073 U CN 219493073U CN 202320185174 U CN202320185174 U CN 202320185174U CN 219493073 U CN219493073 U CN 219493073U
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- frame plate
- limiting
- rod
- driving rack
- driven gear
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application relates to a fire prevention valve of adjustable amount of wind belongs to the fire prevention valve field, and its technical scheme main points include: the fan comprises a frame plate and fan blades which are rotationally connected to the plurality of arrays in the frame plate, wherein a torsion spring is arranged between the fan blades and the frame plate, the fan blades are in a closed state when the torsion spring is in an initial state, a driven gear is arranged at the bottom of the fan blades, a driving rack meshed with the driven gear is horizontally and slidably connected to the bottom of the frame plate, and a driving device used for driving the driving rack to slide is arranged on the frame plate.
Description
Technical Field
The application relates to the fire prevention valve field, especially, relate to a fire prevention valve of adjustable amount of wind.
Background
The fire-proof valve is a valve type of memory melting alloy which is closed by gravity and spring mechanism, and is usually installed on ventilating duct, when the temperature of fume reaches 280 deg.C, people are basically evacuated, fume is exhausted without practical meaning, and the fire-proof valve is automatically closed to avoid fire spreading.
The fire-proof valve comprises a mounting frame and a plurality of fan blades which are rotatably connected in the mounting frame and arranged in an array manner, a control box for controlling the fan blades to be opened and closed is arranged on the mounting frame, the fan blades on the fire-proof valve only have two states of opening and closing, the function of adjusting air quantity is not achieved, an air quantity adjusting system is usually additionally arranged in a ventilating duct, and when no fire occurs, indoor ventilation quantity is controlled through the air quantity adjusting system.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: the fire-proof valve and the air quantity adjusting system are independently arranged in the ventilating duct, so that the fire-proof valve and the air quantity adjusting system are high in cost, complex in structure, troublesome in installation and later maintenance, and low in practicality.
Disclosure of Invention
In order to solve the problem that an air quantity adjusting system needs to be additionally installed, the application provides an air quantity adjustable fireproof valve.
The application provides an adjustable air quantity's fire prevention valve adopts following technical scheme:
a fire damper with adjustable air volume comprising: the fan comprises a frame plate and a plurality of fan blades which are rotationally connected in the frame plate and are arranged in an array mode, a torsion spring is arranged between the fan blades and the frame plate, when the torsion spring is in an initial state, the fan blades are in a closed state, a driven gear is arranged at the bottom of each fan blade, a driving rack meshed with the driven gear is horizontally and slidingly connected at the bottom of the frame plate, and a driving device used for driving the driving rack to slide is arranged on the frame plate.
Through adopting above-mentioned technical scheme, control ventilation volume through the angle of adjusting the flabellum on the fire prevention valve, do not need extra installation air regulation system, simple structure, it is convenient to install, the practicality is strong.
The application further sets up: the driving device comprises a bottom plate which is vertically and slidably connected to the bottom of a frame plate, a limiting mechanism used for limiting the position of the bottom plate is arranged on the frame plate, a first electric telescopic rod is arranged on the bottom plate, the driving rack is horizontally and slidably connected to the bottom plate, and an output shaft of the first electric telescopic rod is connected to the end part of the driving rack.
By adopting the technical scheme, when no fire occurs, under the action of the limiting mechanism, the driving rack is meshed with the driven gear, the first electric telescopic rod drives the driving rack to slide, and under the transmission action of the driven gear, the adjustment of the angle of the fan blade can be realized, and the fan blade is simple in structure and accurate in adjustment; when fire breaks out, the limiting mechanism releases the limiting function, the bottom plate slides downwards, the driving rack is separated from the driven gear, the limiting function on the fan blades is lost, and the fan blades are closed under the control of the control box.
The application further sets up: the limiting mechanism comprises a limiting hole formed in the frame plate, a limiting rod penetrates through the limiting hole, a limiting groove corresponding to the limiting hole is formed in the bottom plate, the driving rack is meshed with the driven gear when the limiting rod is located in the limiting groove, and an adjusting component used for adjusting the position of the limiting rod is arranged on the frame plate.
By adopting the technical scheme, when no fire occurs, under the action of the adjusting component, the limiting rod is positioned in the limiting groove, and the driving rack is meshed with the driven gear; when fire disaster occurs, the limiting rod is separated from the limiting groove under the action of the adjusting component, the bottom plate slides downwards, and the driving rack is separated from the driven gear.
The application further sets up: the end circumference of the limiting rod is rotationally connected with balls arranged in an array, and the balls are abutted to the inner wall of the limiting groove.
Through adopting above-mentioned technical scheme, become rolling friction by sliding friction between gag lever post and the inner wall of spacing groove, frictional force reduces, is convenient for the gag lever post deviate from in the spacing groove, has reduced the dead possibility of gag lever post card.
The application further sets up: the adjusting component comprises a temperature sensor, a controller and a second electric telescopic rod which are arranged on the frame plate, wherein the temperature sensor, the controller and the second electric telescopic rod are electrically connected, and an output shaft of the second electric telescopic rod is connected with the end part of the limiting rod.
Through adopting above-mentioned technical scheme, under the effect of second electric telescopic handle, the gag lever post is located the spacing inslot, and when temperature-sensing ware sensed the high temperature, under the effect of controller, second electric telescopic handle drive gag lever post slides, and the gag lever post deviate from the spacing inslot, simple structure, degree of automation is high, does not need human intervention.
The application further sets up: the adjusting component comprises a memory spring sleeved on the limiting rod, one end of the memory spring is connected to the limiting rod, the other end of the memory spring is connected to the frame plate, the memory spring is in a compressed state at normal temperature, the limiting rod is located in the limiting groove, the memory spring is further compressed at high temperature, and the limiting rod is separated from the limiting groove.
By adopting the technical scheme, the memory spring is in a compressed state at normal temperature, and the limiting rod is abutted against the limiting groove under the action of the restoring force of the memory spring; when the temperature is high, the memory spring is further compressed under the action of the characteristics of the memory spring, so that the limit rod is driven to slide, the limit rod is separated from the limit groove, the complicated conditions such as power failure and the like are very easy to occur in the case of fire, the memory spring is used, the influence of external environment factors is small, the failure is difficult, and the success rate is high.
The application further sets up: the bottom of the frame plate is provided with a heat insulation cover for protecting the driving rack and the driven gear.
Through adopting above-mentioned technical scheme, during the conflagration, the temperature rise, under the effect of expend with heat and contract with cold, the dead condition of deformation card appears very easily in initiative rack and driven gear, through the setting of thermal insulation cover, has effectively reduced the dead possibility of initiative rack and driven gear card, has promoted the likelihood of the successful separation of initiative rack and driven gear.
The application further sets up: and dustproof nets are arranged on the frame plate and positioned on two sides of the fan blade.
Through adopting above-mentioned technical scheme, promoted the cleanliness factor of flabellum, ensured the normal rotation of flabellum.
In summary, the present application has the following beneficial effects:
1. when in non-fire, the ventilation quantity is controlled by adjusting the angle of the fan blade on the fireproof valve, an air quantity adjusting system is not required to be additionally installed, the structure is simple, the installation is convenient, and the practicability is strong.
2. The driving rack is limited by the memory spring, the structure is simple, the cost is low, the characteristic of the memory spring is stable, the memory spring is not easy to fail, the probability of successful separation of the driving rack and the driven gear is effectively improved, and the reliability of the fire-proof valve is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
FIG. 2 is an enlarged view of embodiment 1 of the present application at A in FIG. 1;
fig. 3 is a partial enlarged view of embodiment 2 of the present application.
Reference numerals illustrate:
1. a frame plate; 11. a bottom plate; 12. a first electric telescopic rod; 13. a limiting hole; 14. a limit rod; 15. a limit groove; 16. a ball; 17. a thermal insulation cover; 18. a dust screen; 2. a fan blade; 4. a driven gear; 5. a driving rack; 61. a temperature sensor; 62. a controller; 63. a second electric telescopic rod; 71. a memory spring; 81. a rotating rod; 82. a support plate; 83. and (5) a support.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
An air volume adjustable fire damper, example 1:
referring to fig. 1 and 2, comprising: the frame plate 1 and the vertical rotation are connected in the bull stick 81 of three array arrangements in the frame plate 1, and the welding has flabellum 2 on the bull stick 81, and windward side and leeward side on the frame plate 1 all have dust screen 18 through bolted connection, and bull stick 81 both ends cover is equipped with the torsional spring, and torsional spring one end welds on the bull stick 81, and the torsional spring other end welds on the frame plate 1, and the torsional spring is in when being in initial state, and flabellum 2 is in the closed state.
The bottom of the rotating rod 81 penetrates out of the frame plate 1, the bottom of the rotating rod 81 is welded with the driven gear 4, the bottom of the frame plate 1 is horizontally and slidably connected with the driving rack 5 meshed with the driven gear 4, and a driving device for driving the driving rack 5 to slide is arranged on the frame plate 1. The driving device comprises a support plate 82 vertically welded at the bottom of the frame plate 1, a bottom plate 11 is vertically and slidably connected to the support plate 82, a limiting mechanism for limiting the position of the bottom plate 11 is arranged on the support plate 82, a first electric telescopic rod 12 is arranged on the bottom plate 11, a driving rack 5 is horizontally and slidably connected to the bottom plate 11, and an output shaft of the first electric telescopic rod 12 is fixedly connected to the end part of the driving rack 5. The bottom of the frame plate 1 is connected with a heat insulation cover 17 for protecting the driving rack 5 and the driven gear 4 through bolts, and the possibility of deformation and locking of the driving rack 5 and the driven gear 4 is reduced when a fire disaster is at a high temperature through the arrangement of the heat insulation cover 17.
The limiting mechanism comprises a support 83 vertically welded at the bottom of the frame plate 1, a limiting hole 13 is formed in the support 83, a limiting rod 14 penetrates through the limiting hole 13, a limiting groove 15 corresponding to the limiting hole 13 is formed in the bottom plate 11, when the limiting rod 14 is located in the limiting groove 15, the driving rack 5 and the driven gear 4 are in a meshed state, when the limiting rod 14 is separated from the limiting groove 15, the bottom plate 11 slides downwards, the driving rack 5 is separated from the driven gear 4, and an adjusting assembly for adjusting the position of the limiting rod 14 is arranged on the frame plate 1.
The adjusting assembly comprises a temperature sensor 61, a controller 62 and a second electric telescopic rod 63 which are arranged on a support 83, wherein the temperature sensor 61, the controller 62 and the second electric telescopic rod 63 are electrically connected, and an output shaft of the second electric telescopic rod 63 is fixedly connected to the end part of the limiting rod 14.
When no fire occurs, the limiting rod 14 is positioned in the limiting groove 15, the driving rack 5 is meshed with the driven gear 4, and under the driving action of the first electric telescopic rod 12, the fan blade 2 is in an open state with a preset angle and the torsion spring is deformed under the transmission action of the driving rack 5 and the driven gear 4.
During fire, the temperature sensor 61 senses high temperature and transmits signals to the controller 62, under the control of the controller 62, the second electric telescopic rod 63 drives the limiting rod 14 to slide, the limiting rod 14 is separated from the limiting groove 15, abrasion of the limiting rod 14 is reduced in order to enable the limiting rod 14 to slide more smoothly, the service life of the limiting rod 14 is prolonged, the balls 16 distributed in an array are rotationally connected to the side wall of the limiting rod 14, the balls 16 are abutted to the inner walls of the limiting groove 15 and the limiting hole 13, after the limiting rod 14 is separated from the limiting groove 15, the bottom plate 11 slides downwards under the action of gravity of the bottom plate, the driving rack 5 is separated from the driven gear 4, and the fan blades 2 are closed under the action of torsion spring restoring force.
The ventilation quantity is controlled by adjusting the angle of the fan blade 2 on the fireproof valve, an air quantity adjusting system is not required to be additionally installed, the structure is simple, the installation is convenient, and the practicability is high. And the fire prevention valve degree of automation is high, does not need artificial assistance, labour saving and time saving.
Example 2:
referring to fig. 1 and 3, the difference from embodiment 1 is that the adjusting assembly of this embodiment includes a memory spring 71 sleeved on a stop lever 14, the memory spring 71 is located between a support 83 and a base plate 11, one end of the memory spring 71 is welded on the stop lever 14, and the other end of the memory spring 71 is welded on the support 83.
When the fire is not occurring, the memory spring 71 is in a compressed state, the limit rod 14 is abutted against the limit groove 15 under the action of the restoring force of the memory spring 71, and when the temperature is high, the memory spring 71 is rapidly contracted under the characteristic of the memory spring 71, and the limit rod 14 is separated from the limit groove 15. In case of fire, the memory spring 71 is used, is less influenced by the change of external environmental factors, is not easy to fail, greatly improves the possibility that the limit rod 14 is separated from the limit groove 15, and enables the fan blade 2 to be closed in time.
The implementation principle of the fire damper with adjustable air quantity in embodiment 1 of the application is as follows: when no fire occurs, the limiting rod 14 is positioned in the limiting groove 15, the driving rack 5 is meshed with the driven gear 4, the fan blades 2 are in an open state with a preset angle, and the torsion spring is in a deformed state; when in fire, the temperature sensor 61 receives a high-temperature signal, the second electric telescopic rod 63 drives the limiting rod 14 to deviate from the limiting groove 15 under the control of the controller 62, the bottom plate 11 slides downwards, and the fan blades 2 are closed under the action of the restoring force of the torsion spring.
The implementation principle of the fire damper with adjustable air quantity in embodiment 2 of the application is as follows: when no fire occurs, the limiting rod 14 is positioned in the limiting groove 15, the driving rack 5 is meshed with the driven gear 4, the fan blades 2 are in an open state with a preset angle, and the torsion spring is in a deformed state; in case of fire, the memory spring 71 is contracted sharply, the limiting rod 14 is separated from the limiting groove 15, the bottom plate 11 slides downwards, and the fan blades 2 are closed under the action of the restoring force of the torsion spring.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. An adjustable air quantity fire damper, comprising: the novel fan comprises a frame plate (1) and a plurality of fan blades (2) which are rotationally connected in the frame plate (1) and arranged in an array manner, wherein a torsion spring is arranged between each fan blade (2) and the frame plate (1), the fan blades (2) are in a closed state when the torsion spring is in an initial state, a driven gear (4) is arranged at the bottom of each fan blade (2), a driving rack (5) meshed with the driven gear (4) is horizontally and slidingly connected at the bottom of the frame plate (1), and a driving device used for driving the driving rack (5) to slide is arranged on the frame plate (1).
2. The adjustable air flow fire damper of claim 1, wherein: the driving device comprises a bottom plate (11) which is vertically and slidably connected to the bottom of a frame plate (1), a limiting mechanism used for limiting the position of the bottom plate (11) is arranged on the frame plate (1), a first electric telescopic rod (12) is arranged on the bottom plate (11), the driving rack (5) is horizontally and slidably connected to the bottom plate (11), and an output shaft of the first electric telescopic rod (12) is connected to the end part of the driving rack (5).
3. The adjustable air flow fire damper of claim 2, wherein: the limiting mechanism comprises a limiting hole (13) arranged on a frame plate (1), a limiting rod (14) is arranged in the limiting hole (13) in a penetrating mode, a limiting groove (15) corresponding to the limiting hole (13) is formed in the bottom plate (11), the limiting rod (14) is arranged in the limiting groove (15), the driving rack (5) is meshed with the driven gear (4), and an adjusting assembly used for adjusting the position of the limiting rod (14) is arranged on the frame plate (1).
4. A fire damper with adjustable air volume according to claim 3, wherein: the end part circumference side of the limiting rod (14) is rotationally connected with balls (16) which are arranged in an array, and the balls (16) are abutted to the inner wall of the limiting groove (15).
5. A fire damper with adjustable air volume according to claim 3, wherein: the adjusting component comprises a temperature sensor (61), a controller (62) and a second electric telescopic rod (63) which are arranged on the frame plate (1), wherein the temperature sensor (61), the controller (62) and the second electric telescopic rod (63) are electrically connected, and an output shaft of the second electric telescopic rod (63) is connected with the end part of the limiting rod (14).
6. A fire damper with adjustable air volume according to claim 3, wherein: the adjusting component comprises a memory spring (71) sleeved on the limiting rod (14), one end of the memory spring (71) is connected to the limiting rod (14), the other end of the memory spring (71) is connected to the frame plate (1), the memory spring (71) is in a compressed state at normal temperature, the limiting rod (14) is located in the limiting groove (15), the memory spring (71) is further compressed at high temperature, and the limiting rod (14) is separated from the limiting groove (15).
7. The adjustable air flow fire damper of claim 1, wherein: the bottom of the frame plate (1) is provided with a heat insulation cover (17) for protecting the driving rack (5) and the driven gear (4).
8. The adjustable air flow fire damper of claim 1, wherein: and dust screens (18) are arranged on the frame plate (1) and positioned on two sides of the fan blade (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320185174.4U CN219493073U (en) | 2023-01-31 | 2023-01-31 | Fire prevention valve of adjustable amount of wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320185174.4U CN219493073U (en) | 2023-01-31 | 2023-01-31 | Fire prevention valve of adjustable amount of wind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219493073U true CN219493073U (en) | 2023-08-08 |
Family
ID=87482177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320185174.4U Active CN219493073U (en) | 2023-01-31 | 2023-01-31 | Fire prevention valve of adjustable amount of wind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219493073U (en) |
-
2023
- 2023-01-31 CN CN202320185174.4U patent/CN219493073U/en active Active
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