CN114396479B - Fire control air brake - Google Patents

Fire control air brake Download PDF

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Publication number
CN114396479B
CN114396479B CN202210071643.XA CN202210071643A CN114396479B CN 114396479 B CN114396479 B CN 114396479B CN 202210071643 A CN202210071643 A CN 202210071643A CN 114396479 B CN114396479 B CN 114396479B
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CN
China
Prior art keywords
hole
trigger
mounting bracket
executing
driving
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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
Application number
CN202210071643.XA
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Chinese (zh)
Other versions
CN114396479A (en
Inventor
王富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Xinda Keen Group Co ltd
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Chongqing Xinda Keen Group Co ltd
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Publication date
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Priority to CN202210071643.XA priority Critical patent/CN114396479B/en
Publication of CN114396479A publication Critical patent/CN114396479A/en
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Publication of CN114396479B publication Critical patent/CN114396479B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/50—Preventing rotation of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/46—Mechanical actuating means for remote operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention discloses a fire-fighting air brake, which comprises a brake component, wherein a detachable first mounting bracket is arranged on the side wall of the brake component, a detachable second mounting bracket is arranged on the first mounting bracket, a driving component is arranged in the second mounting bracket, an actuator is arranged on the surface of the second mounting bracket, the actuator drives the driving component, and when a fire occurs, the actuator rotates a preset angle, and the driving component enables an air flow channel of the brake component to be closed; when the fire is released, the actuator reversely rotates another preset angle, and the driving assembly enables the air flow channel of the gate assembly to be opened. When a fire occurs, the actuator only needs to rotate a small angle to trigger the brake pad to be rapidly closed, so that the transmission of the fire is cut off. When the fire is relieved, the actuator can be powered on to automatically reset, and the device is particularly suitable for being used on a fire-fighting ventilation system.

Description

Fire control air brake
Technical Field
The invention relates to a fire-fighting facility, in particular to a fire-fighting air brake.
Background
In the existing fire-fighting facilities, a fire-fighting air brake is usually installed according to requirements. The conventional fire damper blade is normally opened and closed by an electric actuator. However, the turning angles of the electric actuator for opening and closing are identical and opposite, which results in that the air brake cannot be closed instantaneously, and the extinguishing of fire is affected.
Disclosure of Invention
The invention mainly solves the technical problems existing in the prior art, thereby providing a fire-fighting air brake.
The technical problems of the invention are mainly solved by the following technical proposal:
a fire-fighting air brake is characterized in that the fire-fighting air brake comprises a brake component, a detachable first mounting bracket is arranged on the side wall of the brake component, a detachable second mounting bracket is arranged on the first mounting bracket, a driving component is arranged in the second mounting bracket, an actuator is arranged on the surface of the second mounting bracket, the actuator drives the driving component,
wherein is #
When a fire occurs, the actuator rotates a preset angle, and the driving assembly enables the air flow channel of the gate assembly to be closed;
when the fire is released, the actuator reversely rotates another preset angle, and the driving assembly enables the air flow channel of the gate assembly to be opened.
A fire-fighting air brake is characterized in that the fire-fighting air brake comprises a brake component, a detachable first mounting bracket is arranged on the side wall of the brake component, a detachable second mounting bracket is arranged on the first mounting bracket, a driving component is arranged in the second mounting bracket, an actuator is arranged on the surface of the second mounting bracket, the actuator drives the driving component,
the brake assembly comprises a frame, a plurality of rotatable brake pads are arranged in the frame, two ends of each brake pad are respectively provided with a connecting transverse bar, the tail end of each connecting transverse bar is provided with a connecting strip, the tail end of each connecting strip is provided with a first spring flange, each spring flange is provided with a first through spring hole, the bottom of the side part of the frame is provided with a second spring flange, each second spring flange is provided with a second through spring hole, a reset spring is arranged between each first spring hole and each second spring hole, one side part of the frame is provided with a side cover plate, one side cover plate is provided with a side cover opening, one end face of each brake pad is provided with a hexagonal sleeve shaft, each hexagonal sleeve shaft penetrates through each side cover opening,
the top of the first mounting bracket is provided with a first bracket opening, both sides of the first mounting bracket are provided with a first mounting flange, the first mounting flange is provided with a first flange through hole,
the top of the second mounting bracket is provided with a second bracket opening, both sides of the second mounting bracket are provided with a second mounting flange, the second mounting flange is provided with a second flange through hole,
the driving component comprises a pair of clamping plates, the four corners of the clamping plates are respectively provided with a clamping plate mounting hole, the middle part of the clamping plates is provided with a first rotating shaft hole, a second rotating shaft hole, a third rotating shaft hole and a fourth rotating shaft hole,
the clamping plates are provided with a door-shaped mounting bracket between the clamping plates, four corners of the mounting bracket are respectively provided with a clamping plate mounting hole, the bottom of the mounting bracket is provided with a strip extension strip, the extension strip is provided with a penetrating adjusting round hole and a penetrating guiding round hole, the outer side of the extension strip is provided with a strip-shaped insert, the insert is provided with a penetrating oblong insert notch and a penetrating insert window, the insert notch is matched with the adjusting round hole, the insert window is matched with the guiding round hole,
the inside of the mounting bracket is provided with a driving piece, an executing piece, a triggering piece and a positioning rod,
the driving piece comprises a driving head and a transmission half-tooth column, the driving head comprises a driving shaft lever and a connecting tooth head, the connecting tooth head is matched with a connecting ring of the actuator,
the transmission half-tooth column comprises a columnar tooth column main body, the center of the tooth column main body is provided with a tooth column center hole, the side wall of the tooth column main body is provided with a section of transmission tooth head array formed by transmission tooth heads, the driving shaft rod penetrates through the tooth column center hole,
the executing piece comprises an executing connecting seat, two sides of the executing connecting seat are respectively provided with a fan-shaped executing fan plate, the upper side edge of the executing fan plate is provided with a plurality of fan-shaped gear heads, the lower side edge of the executing fan plate is provided with an arc-shaped sliding cambered surface, the tail end of the executing fan plate is provided with a limiting protrusion, the side wall of the executing connecting seat is provided with a through executing seat through hole, an executing shaft lever is arranged in the executing seat through hole, the tail end of the executing shaft lever is provided with a hexagonal prism-shaped executing hexagon head which is matched with the hexagonal sleeve shaft,
the trigger piece comprises a trigger bracket, the trigger bracket comprises a strip-shaped trigger main body, the middle part of the trigger main body is provided with a trigger rotation shaft hole, the top of the trigger main body is provided with a trigger opening, the side wall of the trigger opening is provided with a through opening rotation hole, the trigger opening is internally provided with a swinging block-shaped swinging block, the top of the swinging block is provided with a protruding swinging head, the bottom of the swinging block is provided with a protruding swinging tail, the side wall of the swinging block is provided with a through swinging block through hole and a torsion spring limiting block, a swinging block pivot penetrates through the opening rotation hole and the swinging block through hole, two ends of the swinging block pivot are provided with a reset torsion spring, the trigger rotation shaft hole is provided with a trigger pivot, the bottom of the trigger main body is provided with a limiting corner, the upper part of the side wall of the trigger main body is provided with an arc-shaped first trigger cambered surface, the lower part of the side wall of the trigger main body is provided with an arc-shaped second trigger cambered surface, the second trigger cambered surface is propped against a guide screw, the guide screw is provided with a guide spring, the guide screw is provided with a guide window, and the guide screw is penetrated through the guide screw hole,
the driving shaft rod penetrates through the first rotating shaft hole, the executing shaft rod penetrates through the second rotating shaft hole, the triggering pivot penetrates through the third rotating shaft hole, the positioning rod penetrates through the fourth rotating shaft hole, and the four connecting screws penetrate through the clamping plate mounting hole and the clamping plate mounting hole.
The fire control air brake of the invention has the following advantages: when a fire occurs, the actuator only needs to rotate a small angle to trigger the brake pad to be rapidly closed, so that the transmission of the fire is cut off. When the fire is relieved, the actuator can be powered on to automatically reset, and the device is particularly suitable for being used on a fire-fighting ventilation system.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a fire damper according to the present invention;
FIG. 2 is an exploded perspective view of the fire damper of FIG. 1;
FIG. 3 is an enlarged schematic view of a portion P1 of the fire damper of FIG. 2;
FIG. 4 is a further exploded perspective view of the fire damper of FIG. 2;
FIG. 5 is an enlarged schematic view of the portion P2 of FIG. 4;
FIG. 6 is an enlarged schematic view of portion P3 of FIG. 4;
FIG. 7 is a further exploded perspective view of the fire damper of FIG. 4;
FIG. 8 is an enlarged schematic view of portion P4 of FIG. 7;
FIG. 9 is a schematic perspective view of a driving assembly of the fire damper of FIG. 2;
FIG. 10 is an exploded perspective view of the drive assembly of FIG. 9;
FIG. 11 is a schematic view of a further perspective of the drive assembly of FIG. 10;
FIG. 12 is an enlarged schematic view of portion P5 of FIG. 11;
FIG. 13 is an exploded perspective view of the driving member of the driving assembly of FIG. 10;
FIG. 14 is an exploded perspective view of an actuator of the drive assembly of FIG. 10;
FIG. 15 is an exploded perspective view of the trigger of the drive assembly of FIG. 10;
fig. 16 is an enlarged schematic view of the portion P6 in fig. 15;
FIG. 17 is a schematic view illustrating operation of the drive assembly of FIG. 9, with the fire damper in a normal operation;
FIG. 18 is an enlarged schematic view of portion Q1 of FIG. 17;
FIG. 19 is a schematic view of the operation of the drive assembly of FIG. 9, with a fire condition, and with the actuator just rotated a small angle;
FIG. 20 is an enlarged schematic view of portion Q2 of FIG. 19;
FIG. 21 is a schematic diagram illustrating operation of the driving assembly of FIG. 9, wherein all brake pads are closed;
FIG. 22 is an enlarged schematic view of portion Q3 of FIG. 21;
FIG. 23 is a schematic operation of the drive assembly of FIG. 9, wherein the actuator is initially reset;
FIG. 24 is an enlarged schematic view of portion Q4 of FIG. 23;
FIG. 25 is a schematic view of the operation of the drive assembly of FIG. 9, with the trigger support reset;
FIG. 26 is an enlarged schematic view of portion Q5 of FIG. 25;
FIG. 27 is a schematic view of the operation of the drive assembly of FIG. 9, wherein the actuator continues to perform a reset rotation;
FIG. 28 is an enlarged schematic view of portion Q6 of FIG. 27;
FIG. 29 is a schematic view of the operation of the drive assembly of FIG. 9, wherein the reset operation of the actuator is nearly complete;
fig. 30 is an enlarged schematic view of the portion Q7 in fig. 29.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
As shown in fig. 1 to 8, the fire damper 1 comprises a damper assembly 2, a detachable first mounting bracket 3 is provided on a sidewall of the damper assembly 2, a detachable second mounting bracket 4 is provided on the first mounting bracket 3, a driving component M is provided in the second mounting bracket 4, an actuator 5 is provided on a surface of the second mounting bracket 4, and the actuator 5 drives the driving component M.
The brake assembly 2 comprises a frame 20, a plurality of rotatable brake pads 21 are arranged in the frame 20, two ends of the brake pads 21 are respectively provided with a connecting transverse bar 22, the tail end of the connecting transverse bar 22 is provided with a connecting strip 23, the tail end of the connecting strip 23 is provided with a first spring flange 231, the spring flange 231 is provided with a first through spring hole 232, the bottom of the side part of the frame 20 is provided with a second spring flange 201, the second spring flange 201 is provided with a second through spring hole 202, a return spring 24 is arranged between the first spring hole 232 and the second spring hole 202, the side part of the frame 20 is provided with a side cover plate 26, the side cover plate 26 is provided with a side cover opening 261, wherein the end face of the brake pad 21 is provided with a hexagonal sleeve shaft 25, and the hexagonal sleeve shaft 25 penetrates through the side cover opening 261.
The top of the first mounting bracket 3 is provided with a first bracket opening 31, two sides of the first mounting bracket 3 are provided with a first mounting flange 32, and the first mounting flange 32 is provided with a first flange through hole 321.
The top of the second mounting bracket 4 is provided with a second bracket opening 41, two sides of the second mounting bracket 4 are provided with a second mounting flange 42, and the second mounting flange 42 is provided with a second flange through hole 421.
The driving assembly M comprises a pair of clamping plates 6, wherein a clamping plate mounting hole 60 is formed at four corners of the clamping plates 6, and a first rotating shaft hole 61, a second rotating shaft hole 62, a third rotating shaft hole 63 and a fourth rotating shaft hole 64 are formed at the middle part of the clamping plates 6.
The clamping plates 6 are provided with a door-shaped mounting bracket 8, four corners of the mounting bracket 8 are respectively provided with a clamping plate mounting hole 81, the bottom of the mounting bracket 8 is provided with a strip-shaped extension strip 82, the extension strip 82 is provided with a penetrating adjusting round hole 83 and a penetrating guiding round hole 84, the outer side of the extension strip 82 is provided with a strip-shaped insert 9, the insert 9 is provided with a penetrating oblong insert notch 91 and a penetrating insert window 92, the insert notch 91 is matched with the adjusting round hole 83, and the insert window 92 is matched with the guiding round hole 84.
The inside of the mounting bracket 8 is provided with a driving member 10, an actuating member 11, a triggering member 12 and a positioning rod 13.
The driving member 10 comprises a driving head 101 and a driving half-toothed column 102, the driving head 101 comprises a driving shaft 1012 and a connecting toothed head 1011, the connecting toothed head 1011 cooperates with the connecting ring 51 of the actuator 5.
The transmission half-toothed column 102 comprises a cylindrical toothed column main body 1021, a toothed column central hole 1022 is arranged in the center of the toothed column main body 1021, a section of transmission toothed head array composed of transmission toothed heads 1023 is arranged on the side wall of the toothed column main body 1021, and the driving shaft 1012 penetrates through the toothed column central hole 1022.
The executing member 11 includes an executing connecting seat 111, two sides of the executing connecting seat 111 are respectively provided with a fan-shaped executing fan plate 112, the upper side edge of the executing fan plate 112 is provided with a plurality of fan plate teeth 1121, and the lower side edge of the executing fan plate 112 is provided with an arc-shaped sliding arc surface 1123. The end of the execution fan plate 112 is provided with a limit protrusion 1122, the sidewall of the execution connecting seat 111 is provided with a through execution seat through hole 113, an execution shaft lever 114 is arranged in the execution seat through hole 113, the end of the execution shaft lever 114 is provided with a hexagonal prism-shaped execution hexagonal head 115, and the execution hexagonal head 115 is matched with the hexagonal sleeve shaft 25.
The trigger 12 comprises a trigger bracket 121, the trigger bracket 121 comprises an elongated trigger body 1211, a trigger rotation shaft hole 1212 is provided in the middle of the trigger body 1211, a trigger opening 1215 is provided at the top of the trigger body 1211, a through opening rotation hole 1216 is provided on the side wall of the trigger opening 1215, a swinging block-shaped swinging block 122 is provided in the trigger opening 1215, a protruding swinging head 1221 is provided at the top of the swinging block 122, a protruding swinging tail 1222 is provided at the bottom of the swinging block 122, a through swinging block through hole 1223 and a torsion spring stopper 1224 are provided on the side wall of the swinging block 122, a swinging block pivot 123 penetrates through the opening rotation hole 1216 and the swinging block through hole 1223, a reset torsion spring 1231 is provided at both ends of the swinging block pivot 123, a trigger pivot 124 is provided in the trigger rotation shaft hole 1212, a limit corner 1213 is provided at the bottom of the trigger body 1211, a first arc-shaped trigger arc surface 1214 is provided at the upper side wall of the trigger body 1211, a second arc-shaped arc surface 1217 is provided at the lower side wall of the trigger body 1211, a guide screw rod 1217 is provided at the lower end of the trigger body 1217, and a guide screw rod 125 is provided at the guide screw rod 125 is abutted against the guide screw rod 125, and the guide screw rod 125 is abutted against the guide screw rod 125.
Wherein the driving shaft 1012 penetrates the first shaft hole 61, the actuating shaft 114 penetrates the second shaft hole 62, the trigger pivot 124 penetrates the third shaft hole 63, the positioning rod 13 penetrates the fourth shaft hole 64, and the four connecting screws 7 penetrate the clamping plate mounting hole 60 and the clamping plate mounting hole 81.
The following describes the operation of the fire damper 1, and the steps are as follows:
step 1, when the fire damper 1 is in a normal working state, as shown in fig. 1, 17 and 18, the damper blades 21 are all opened, and the air supply flow passes through. At this time, the top of the trigger bracket 121 abuts against the tip H of the actuating fan 112, so that the actuating fan 112 cannot rotate counterclockwise, thereby maintaining the open state of the brake pad 21. When the shutter 21 is opened, the return spring 24 is pulled up as shown in fig. 5;
step 2, when a fire occurs, as shown in fig. 19 and 20, for convenience of description and comparison, the driving tooth head 1023 at one end of the driving half-tooth post 102 is defined as a driving tooth head 1023A, and the driving tooth head 1023 at the other end is defined as a driving tooth head 1023B. First, the coupling ring 51 of the actuator 5 starts to rotate clockwise, and thus, the driving head 101 and the driving half-post 102 of the driving member 10 start to rotate clockwise in the direction R1. One of the driving heads 1023 of the driving half-toothed column 102 starts to toggle the pendulum 122, so that the pendulum 122 and the trigger support 121 simultaneously rotate counterclockwise along the direction R2 until the top of the trigger support 121 is separated from the tip H, at which time the execution fan 112 is released. It should be noted that, during the counterclockwise rotation of the trigger bracket 121, the second trigger arc 1217 of the trigger bracket 121 continuously presses the lead screw 125, and the guide spring 126 is gradually compressed. The relationship between the pendulum 122 and the trigger support 121 will be described later. In addition, it should be noted that, since the driving half-toothed column 102 only needs to rotate a small angle to cause the triggering action, the top of the triggering bracket 121 is only required to be separated from the tip H, so that the reaction speed of the fire can be fast;
in step 3, as shown in fig. 21 and 22, since the execution fan plate 112 is released, the execution fan plate 112 and the shutter 21 mounted with the hexagonal socket shaft 25 rapidly rotate counterclockwise along the direction R3 under the contraction tensile force of the return spring 24 until the execution fan plate 112 abuts against the positioning rod 13. Meanwhile, the brake pad 21 provided with the hexagonal sleeve shaft 25 immediately drives other brake pads 21 to be linked by utilizing the connecting transverse bar 22 and the connecting long bar 23, so that the brake pad 21 is rapidly closed, and air flow cannot pass through the frame 20;
in step 4, when the fire alarm is released, the actuator 5 starts to reset, and as shown in fig. 23 and 24, the connection ring 51 of the actuator 5 starts to rotate counterclockwise, so that the driving head 101 and the transmission half-toothed column 102 of the driving member 10 start to rotate counterclockwise along the direction R4. Since the bottom of the swing block 122 is provided with the swing tail 1222, the swing block 122 can only swing clockwise around the swing block pivot 123, so the driving gear head 1023 of the driving half-gear post 102 can smoothly pass through the swing head 1221 at the top of the swing block 122 until the driving gear head 1023A starts to engage with the fan gear head 1121 of the execution fan 112, and then the execution fan 112 starts to rotate clockwise along the direction R5 until the limit projection 1122 abuts against the bottom of the insert 9, as shown in fig. 25 and 26, at this time, the guide spring 126 is reset rapidly, the trigger bracket 121 rotates counterclockwise along the direction R6, so that the top of the trigger bracket 121 abuts against the tip H of the execution fan 112 rapidly, and the execution fan 112 is locked again and cannot rotate counterclockwise. During the clockwise rotation of the fan plate 112, the shutter 21 is gradually restarted;
step 5, as shown in fig. 27 and 28, the connecting ring 51 of the actuator 5 continues to rotate counterclockwise, the driving half-tooth post 102 continues to rotate counterclockwise along the direction R4, at this time, the driving tooth head 1023A has passed over the sector tooth head 1121 of the actuating sector 112, and the driving tooth head 1023B just begins to contact the swing head 1221 of the swing block 122;
in step 6, as shown in fig. 29 and 30, due to the unidirectional swing characteristic of the swing block 122, the driving gear head 1023B can smoothly pass through the swing head 1221 until the driving gear head 1023B starts to abut against one of the fan plate gear heads 1121 of the execution fan plate 112, and the swing block 122 resets to wait for the next fire to trigger.
When a fire occurs, the actuator only needs to rotate a small angle to trigger the brake pad to be rapidly closed, so that the transmission of the fire is cut off. When the fire is relieved, the actuator can be powered on to automatically reset, and the device is particularly suitable for being used on a fire-fighting ventilation system.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the scope of protection of the present application, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims (1)

1. A fire-fighting air brake is characterized in that the fire-fighting air brake comprises a brake component, a detachable first mounting bracket is arranged on the side wall of the brake component, a detachable second mounting bracket is arranged on the first mounting bracket, a driving component is arranged in the second mounting bracket, an actuator is arranged on the surface of the second mounting bracket, the actuator drives the driving component,
the brake assembly comprises a frame, a plurality of rotatable brake pads are arranged in the frame, two ends of each brake pad are respectively provided with a connecting transverse bar, the tail end of each connecting transverse bar is provided with a connecting strip, the tail end of each connecting strip is provided with a first spring flange, each spring flange is provided with a first through spring hole, the bottom of the side part of the frame is provided with a second spring flange, each second spring flange is provided with a second through spring hole, a reset spring is arranged between each first spring hole and each second spring hole, one side part of the frame is provided with a side cover plate, one side cover plate is provided with a side cover opening, one end face of each brake pad is provided with a hexagonal sleeve shaft, each hexagonal sleeve shaft penetrates through each side cover opening,
the top of the first mounting bracket is provided with a first bracket opening, both sides of the first mounting bracket are provided with a first mounting flange, the first mounting flange is provided with a first flange through hole,
the top of the second mounting bracket is provided with a second bracket opening, both sides of the second mounting bracket are provided with a second mounting flange, the second mounting flange is provided with a second flange through hole,
the driving component comprises a pair of clamping plates, the four corners of the clamping plates are respectively provided with a clamping plate mounting hole, the middle part of the clamping plates is provided with a first rotating shaft hole, a second rotating shaft hole, a third rotating shaft hole and a fourth rotating shaft hole,
the clamping plates are provided with a door-shaped mounting bracket between the clamping plates, four corners of the mounting bracket are respectively provided with a clamping plate mounting hole, the bottom of the mounting bracket is provided with a strip extension strip, the extension strip is provided with a penetrating adjusting round hole and a penetrating guiding round hole, the outer side of the extension strip is provided with a strip-shaped insert, the insert is provided with a penetrating oblong insert notch and a penetrating insert window, the insert notch is matched with the adjusting round hole, the insert window is matched with the guiding round hole,
the inside of the mounting bracket is provided with a driving piece, an executing piece, a triggering piece and a positioning rod,
the driving piece comprises a driving head and a transmission half-tooth column, the driving head comprises a driving shaft rod and a connecting tooth head, the connecting tooth head is matched with a connecting ring of the actuator, the transmission half-tooth column comprises a columnar tooth column main body, the center of the tooth column main body is provided with a tooth column center hole, the side wall of the tooth column main body is provided with a section of transmission tooth head array formed by the transmission tooth head, the driving shaft rod penetrates through the tooth column center hole,
the executing piece comprises an executing connecting seat, two sides of the executing connecting seat are respectively provided with a fan-shaped executing fan plate, the upper side edge of the executing fan plate is provided with a plurality of fan-shaped gear heads, the lower side edge of the executing fan plate is provided with an arc-shaped sliding cambered surface, the tail end of the executing fan plate is provided with a limiting protrusion, the side wall of the executing connecting seat is provided with a through executing seat through hole, an executing shaft lever is arranged in the executing seat through hole, the tail end of the executing shaft lever is provided with a hexagonal prism-shaped executing hexagon head which is matched with the hexagonal sleeve shaft,
the trigger piece comprises a trigger bracket, the trigger bracket comprises a strip-shaped trigger main body, the middle part of the trigger main body is provided with a trigger rotation shaft hole, the top of the trigger main body is provided with a trigger opening, the side wall of the trigger opening is provided with a through opening rotation hole, the trigger opening is internally provided with a swinging block-shaped swinging block, the top of the swinging block is provided with a protruding swinging head, the bottom of the swinging block is provided with a protruding swinging tail, the side wall of the swinging block is provided with a through swinging block through hole and a torsion spring limiting block, a swinging block pivot penetrates through the opening rotation hole and the swinging block through hole, two ends of the swinging block pivot are provided with a reset torsion spring, the trigger rotation shaft hole is provided with a trigger pivot, the bottom of the trigger main body is provided with a limiting corner, the upper part of the side wall of the trigger main body is provided with an arc-shaped first trigger cambered surface, the lower part of the side wall of the trigger main body is provided with an arc-shaped second trigger cambered surface, the second trigger cambered surface is propped against a guide screw, the guide screw is provided with a guide spring, the guide screw is provided with a guide window, and the guide screw is penetrated through the guide screw hole,
the driving shaft rod penetrates through the first rotating shaft hole, the executing shaft rod penetrates through the second rotating shaft hole, the triggering pivot penetrates through the third rotating shaft hole, the positioning rod penetrates through the fourth rotating shaft hole, and the four connecting screws penetrate through the clamping plate mounting hole and the clamping plate mounting hole.
CN202210071643.XA 2022-01-21 2022-01-21 Fire control air brake Active CN114396479B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9851121B1 (en) * 2016-11-16 2017-12-26 Lynn Oien Heat-actuated fire damper sealing apparatus
KR102030788B1 (en) * 2018-04-20 2019-10-10 주식회사 대아 엠 Buttryfly valve
CN111059301A (en) * 2019-12-31 2020-04-24 致和环境科技（江苏）有限公司 Fire-proof valve
CN111998111A (en) * 2020-08-28 2020-11-27 刘华军 Air brake device
CN112161096A (en) * 2020-10-27 2021-01-01 泰州市都瑞堡船舶设备有限公司 Electric air brake capable of being closed rapidly

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US20020175307A1 (en) * 2001-05-25 2002-11-28 Mccabe Francis J. Drive for a butterfly damper with double acting over center lock

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Publication number Priority date Publication date Assignee Title
US9851121B1 (en) * 2016-11-16 2017-12-26 Lynn Oien Heat-actuated fire damper sealing apparatus
KR102030788B1 (en) * 2018-04-20 2019-10-10 주식회사 대아 엠 Buttryfly valve
CN111059301A (en) * 2019-12-31 2020-04-24 致和环境科技（江苏）有限公司 Fire-proof valve
CN111998111A (en) * 2020-08-28 2020-11-27 刘华军 Air brake device
CN112161096A (en) * 2020-10-27 2021-01-01 泰州市都瑞堡船舶设备有限公司 Electric air brake capable of being closed rapidly

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Title
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