CN114396479A

CN114396479A - Fire-fighting air brake

Info

Publication number: CN114396479A
Application number: CN202210071643.XA
Authority: CN
Inventors: 王富
Original assignee: Individual
Current assignee: Chongqing Xinda Keen Group Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-04-26
Anticipated expiration: 2042-01-21
Also published as: CN114396479B

Abstract

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

Description

Fire-fighting 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 required to be installed according to requirements. The brake pads of existing wind break brakes are typically opened and closed using an electric actuator. However, the rotation angles of the electric actuators for opening and closing are completely the same, and the directions are opposite, so that the air brake cannot be closed instantly, and the fire extinguishing is affected.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art, and provides a fire-fighting air brake.

The technical problem of the invention is mainly solved by the following technical scheme:

a fire-fighting air brake is characterized by comprising 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,

therein,. mu.g

When a fire occurs, the actuator rotates for a preset angle, and the driving assembly closes the airflow channel of the brake assembly;

when the fire is relieved, the actuator rotates reversely by another preset angle, and the driving assembly enables the airflow channel of the brake assembly to be opened.

the brake component comprises a frame, a plurality of rotatable brake pads are arranged in the frame, both ends of each brake pad are 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 spring hole which penetrates through the connecting transverse bar, 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 spring hole which penetrates through the connecting strip, a reset spring is arranged between each first spring hole and each second spring hole, the side part of the frame is provided with a side cover plate, each side cover plate is provided with a side cover hole, the end surface of one brake pad is provided with a hexagonal sleeve shaft, and the hexagonal sleeve shaft penetrates through the side cover holes,

the top of the first mounting bracket is provided with a first bracket opening, both sides of the first mounting bracket are provided with first mounting flanges, the first mounting flanges are provided with first flange through holes,

the top of the second mounting bracket is provided with a second bracket opening, both sides of the second mounting bracket are provided with second mounting flanges, the second mounting flanges are provided with second flange through holes,

the driving component comprises a pair of clamping plates, the four corners of each clamping plate are respectively provided with a clamping plate mounting hole, the middle part of each clamping plate 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 rectangular mounting bracket between them, the four corners of the mounting bracket are provided with a clamping plate mounting hole, the bottom of the mounting bracket is provided with a strip-shaped extension strip, the extension strip is provided with a through adjusting round hole and a through guiding round hole, the outer side of the extension strip is provided with a strip-shaped insert block, the insert block is provided with a through long round insert block notch and a through insert block window, the insert block notch is matched with the adjusting round hole, the insert block 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 part comprises a driving head and a transmission semi-tooth column, the driving head comprises a driving shaft lever and a connecting tooth head, the connecting tooth head is matched with the connecting ring of the actuator,

the transmission semi-tooth column comprises a columnar tooth column main body, a tooth column central hole is arranged at the center of the tooth column main body, a transmission tooth head array consisting of transmission tooth heads is arranged on the side wall of the tooth column main body, the driving shaft rod penetrates through the tooth column central hole,

the executing part comprises an executing connecting seat, a fan-shaped executing fan plate is arranged on each of two sides of the executing connecting seat, a plurality of fan plate tooth heads are arranged on the edge of the upper side of the executing fan plate, an arc-shaped sliding arc surface is arranged on the edge of the lower side of the executing fan plate, a limiting protrusion is arranged at the tail end of the executing fan plate, a through executing seat through hole is arranged on the side wall of the executing connecting seat, an executing shaft lever is arranged in the executing seat through hole, a hexagonal prism-shaped executing hexagonal head is arranged at the tail end of the executing shaft lever, and the executing hexagonal head is matched with the hexagonal sleeve shaft,

the trigger piece comprises a trigger support, the trigger support comprises a strip-shaped trigger main body, a trigger rotating shaft hole is arranged in the middle of the trigger main body, a trigger opening is arranged at the top of the trigger main body, a through opening rotating hole is formed in the side wall of the trigger opening, a swingable massive swing block is arranged in the trigger opening, a protruded swing head is arranged at the top of the swing block, a protruded swing tail is arranged at the bottom of the swing block, a through swing block through hole and a torsion spring limiting block are arranged on the side wall of the swing block, a swing block pivot penetrates through the opening rotating hole and the swing block through hole, reset torsion springs are arranged at two ends of the swing block pivot, a trigger pivot shaft is arranged in the trigger rotating shaft hole, a limiting corner is arranged at the bottom of the trigger main body, an arc-shaped first trigger arc surface is arranged at the upper part of the side wall of the trigger main body, an arc-shaped second trigger cambered surface is arranged at the lower part of the side wall of the trigger main body, the second trigger cambered surface is propped against a guide screw rod, a guide spring is arranged on the guide screw rod, the guide screw rod penetrates through the guide round hole and the insert block window,

the driving shaft lever penetrates through the first rotating shaft hole, the executing shaft lever 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 four connecting screws penetrate through the clamping plate mounting hole and the clamping plate mounting hole.

The fire-fighting air brake has the following advantages: when a fire occurs, the actuator only needs to rotate a tiny angle to trigger the brake pad to be closed quickly, and the propagation of the fire is cut off. When the fire is relieved, the actuator can be powered on to automatically reset, and the fire-fighting ventilation system is particularly suitable for being used on a fire-fighting ventilation system.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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 schematic exploded perspective view of the fire damper of FIG. 2;

fig. 5 is an enlarged schematic view of a portion P2 in fig. 4;

fig. 6 is an enlarged schematic view of a portion P3 in fig. 4;

FIG. 7 is a schematic exploded perspective view of the fire damper of FIG. 4;

fig. 8 is an enlarged schematic view of a portion P4 in fig. 7;

FIG. 9 is a 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 further perspective view of the drive assembly of FIG. 10;

fig. 12 is an enlarged schematic view of a portion P5 in fig. 11;

FIG. 13 is an exploded perspective view of a drive member of the drive 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 a portion P6 in fig. 15;

FIG. 17 is a schematic view of the drive assembly of FIG. 9, with the fire damper in normal operation;

fig. 18 is an enlarged schematic view of a portion Q1 in fig. 17;

FIG. 19 is a schematic representation of the operation of the drive assembly of FIG. 9 in the event of a fire with the actuator just rotated through a small angle;

fig. 20 is an enlarged schematic view of a portion Q2 in fig. 19;

FIG. 21 is an operational view of the drive assembly of FIG. 9, with all of the brake pads closed;

fig. 22 is an enlarged schematic view of a portion Q3 in fig. 21;

FIG. 23 is a schematic view of the operation of the drive assembly of FIG. 9, with the actuator initially reset;

fig. 24 is an enlarged schematic view of a portion Q4 in fig. 23;

FIG. 25 is an operational schematic view of the drive assembly of FIG. 9, with the trigger carriage reset;

fig. 26 is an enlarged schematic view of a portion Q5 in fig. 25;

FIG. 27 is an operational schematic of the drive assembly of FIG. 9, with the actuator continuing to perform the reset rotation;

fig. 28 is an enlarged schematic view of a portion Q6 in fig. 27;

FIG. 29 is a schematic illustration of the operation of the drive assembly of FIG. 9, with the actuator reset operation near completion;

fig. 30 is an enlarged schematic view of a 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, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 to 8, the fire damper 1 includes a damper assembly 2, a first detachable mounting bracket 3 is disposed on a side wall of the damper assembly 2, a second detachable mounting bracket 4 is disposed on the first mounting bracket 3, a driving assembly M is disposed in the second mounting bracket 4, an actuator 5 is disposed on a surface of the second mounting bracket 4, and the actuator 5 drives the driving assembly M.

The brake assembly 2 includes a frame 20, a plurality of rotatable brake pads 21 are disposed in the frame 20, both ends of the brake pads 21 are disposed with a connecting bar 22, a connecting bar 23 is disposed at an end of the connecting bar 22, a first spring flange 231 is disposed at an end of the connecting bar 23, a first spring hole 232 is disposed on the spring flange 231, a second spring flange 201 is disposed at a bottom of a side portion of the frame 20, a second spring hole 202 is disposed on the second spring flange 201, a return spring 24 is disposed between the first spring hole 232 and the second spring hole 202, a side cover plate 26 is disposed at a side portion of the frame 20, a side cover opening 261 is disposed on the side cover plate 26, a hexagonal sleeve shaft 25 is disposed on an end surface of one of the brake pads 21, 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 both 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 includes a pair of clamping plates 6, a clamping plate mounting hole 60 is disposed at each of four corners of the clamping plate 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 disposed at the middle portion of the clamping plate 6.

Be equipped with a font's installing support 8 between this splint 6, all be equipped with a splint mounting hole 81 on the four corners of this installing support 8, the bottom of this installing support 8 is equipped with a banding extension strip 82, be equipped with a regulation round hole 83 that runs through and a guide round hole 84 that runs through on this extension strip 82, the outside of this extension strip 82 is equipped with a banding abaculus 9, be equipped with a long circle's that runs through abaculus notch 91 and an abaculus window 92 that runs through on this abaculus 9, this abaculus notch 91 cooperatees with this regulation round hole 83, this abaculus window 92 cooperatees with this guide round hole 84.

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 semi-toothed column 102, the driving head 101 comprises a driving shaft 1012 and a connecting toothed head 1011, and the connecting toothed head 1011 is matched with the connecting ring 51 of the actuator 5.

The driving semi-toothed column 102 comprises a cylindrical toothed column main body 1021, a toothed column central hole 1022 is disposed in the center of the toothed column main body 1021, a driving toothed head array composed of driving toothed heads 1023 is disposed on the sidewall 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, a fan-shaped executing fan plate 112 is disposed on both sides of the executing connecting seat 111, a plurality of fan plate teeth 1121 are disposed on an upper edge of the executing fan plate 112, and an arc-shaped sliding arc 1123 is disposed on a lower edge of the executing fan plate 112. The end of the executing fan plate 112 is provided with a limiting protrusion 1122, the side wall of the executing connecting base 111 is provided with an executing base through hole 113, an executing shaft rod 114 is arranged in the executing base through hole 113, the end of the executing shaft rod 114 is provided with a hexagonal prism-shaped executing hexagonal head 115, and the executing hexagonal head 115 is matched with the hexagonal sleeve shaft 25.

The trigger member 12 includes a trigger bracket 121, the trigger bracket 121 includes an elongated trigger body 1211, the trigger body 1211 has a trigger rotation shaft hole 1212 at a middle portion thereof, the trigger body 1211 has a trigger opening 1215 at a top portion thereof, the side wall of the trigger opening 1215 has an opening rotation hole 1216 passing therethrough, the trigger opening 1215 has a block-shaped swinging block 122 swinging therein, the top portion of the swinging block 122 has a protruding swinging head 1221, the bottom portion of the swinging block 122 has a protruding swinging tail 1222, the side wall of the swinging block 122 has a through swinging block through hole 1223 and a torsion spring stopper 1224 passing therethrough, a swinging block pivot 123 passes through the opening rotation hole 1223 and the swinging block through hole 1223, the two ends of the swinging block pivot 123 are each provided with a restoring torsion spring 1231, the trigger rotation shaft hole 1212 has a trigger pivot 124 therein, the bottom portion of the trigger body 1211 has a stopper corner 1213, the upper portion of the side wall of the trigger body 1211 has an arc-shaped first trigger arc 1214, the lower portion of the sidewall of the trigger body 1211 is provided with a second arc trigger surface 1217, the second arc trigger surface 1217 abuts against a lead screw 125, the lead screw 125 is provided with a guide spring 126, and the lead screw 125 passes through the circular guide hole 84 and the insert window 92.

The driving shaft 1012 passes through the first rotating shaft hole 61, the actuating shaft 114 passes through the second rotating shaft hole 62, the triggering shaft 124 passes through the third rotating shaft hole 63, the positioning rod 13 passes through the fourth rotating shaft hole 64, and four connecting screws 7 pass through the cleat installation holes 60 and the cleat installation holes 81.

The operation of the fire damper 1 is explained 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 plate 112, so that the actuating fan plate 112 cannot rotate counterclockwise, thereby maintaining the open state of the shutter 21. When the shutter 21 is opened, as shown in fig. 5, the return spring 24 is pulled up;

step 2, when a fire occurs, as shown in fig. 19 and 20, for convenience of description and comparison, the driving tooth 1023 at one end of the driving half-tooth post 102 is defined as a driving tooth 1023A, and the driving tooth 1023 at the other end is defined as a driving tooth 1023B. First, the coupling ring 51 of the actuator 5 starts to rotate clockwise, so that the driving head 101 and the driving half-rack 102 of the driver 10 start to rotate clockwise in the direction R1. One of the driving teeth 1023 of the driving semi-tooth column 102 starts to move the swing block 122, so that the swing block 122 and the trigger bracket 121 rotate counterclockwise along the direction R2 at the same time until the top of the trigger bracket 121 is separated from the tip H, at which time the actuating 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 guide screw 125, and the guide spring 126 is gradually compressed. The movement relationship between the swing block 122 and the trigger bracket 121 will be described later. In addition, it should be noted that, since the driving semi-toothed column 102 only needs to rotate a slight angle to cause the triggering action, only the top of the triggering bracket 121 is separated from the tip H, the response speed of the fire can be very fast;

step 3, as shown in fig. 21 and 22, since the actuating fan plate 112 is released, the actuating fan plate 112 and the brake pad 21 with the hexagonal socket 25 mounted thereon rapidly rotate counterclockwise along the direction R3 under the action of the contracting tension of the return spring 24 until the actuating 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 link by using the connecting cross bar 22 and the connecting strip 23, so that the brake pads 21 are quickly closed, and airflow cannot pass through the frame 20;

step 4, when the fire alarm is released, the actuator 5 starts to reset, as shown in fig. 23 and 24, the connecting ring 51 of the actuator 5 starts to rotate counterclockwise, and then the driving head 101 and the transmission half-tooth column 102 of the driving member 10 both start to rotate counterclockwise along the direction R4. Because 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, therefore, the transmission gear head 1023 of the transmission semi-tooth column 102 can smoothly pass through the swing head 1221 at the top of the swing block 122 until the transmission gear head 1023A starts to engage with the fan plate gear head 1121 of the execution fan plate 112, and then the execution fan plate 112 starts to rotate clockwise along the direction R5 until the limit protrusion 1122 abuts against the bottom of the embedded block 9, as shown in fig. 25 and 26, at this time, the guide spring 126 is rapidly reset, and the trigger bracket 121 rotates counterclockwise along the direction R6, so that the top of the trigger bracket 121 quickly abuts against the tip H of the execution fan plate 112, and the execution fan plate 112 is locked again and cannot rotate counterclockwise. In the process of executing the clockwise rotation of the fan plate 112, the brake pad 21 is gradually reopened;

step 5, as shown in fig. 27 and 28, the connecting ring 51 of the actuator 5 continues to rotate counterclockwise, and the driving semi-toothed column 102 continues to rotate counterclockwise along the direction R4, at this time, the driving toothed head 1023A has already passed over the sector toothed head 1121 of the sector plate 112, and the driving toothed head 1023B has just started to contact the swing head 1221 of the swing block 122;

step 6, as shown in fig. 29 and fig. 30, due to the unidirectional swing characteristic of the swing block 122, the transmission gear 1023B can smoothly pass through the swing head 1221 until the transmission gear 1023B starts to abut against one of the sector gear 1121 of the sector plate 112, and the swing block 122 is reset to wait for the next fire triggering.

When a fire occurs, the actuator only needs to rotate a tiny angle to trigger the brake pad to be closed quickly, and the propagation of the fire is cut off. When the fire is relieved, the actuator can be powered on to automatically reset, and the fire-fighting ventilation system 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 protection scope of the present application, and although the present application is 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 on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A fire-fighting air brake is characterized by comprising 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,

therein,. mu.g

2. A fire-fighting air brake is characterized by comprising 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,