CN110630807B - Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof - Google Patents
Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof Download PDFInfo
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- CN110630807B CN110630807B CN201911012839.6A CN201911012839A CN110630807B CN 110630807 B CN110630807 B CN 110630807B CN 201911012839 A CN201911012839 A CN 201911012839A CN 110630807 B CN110630807 B CN 110630807B
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- 239000000779 smoke Substances 0.000 title claims abstract description 82
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 230000009471 action Effects 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 230000002265 prevention Effects 0.000 claims abstract description 21
- 240000007643 Phytolacca americana Species 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
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- 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
- F16K31/465—Mechanical actuating means for remote operation by flexible transmission means, e.g. cable, chain, bowden wire
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
A remote control actuating mechanism for a smoke exhaust fire prevention valve comprises a bottom plate, a switch collision block, a micro switch, a button or toggle assembly, an electromagnet, a lever assembly, a pawl assembly, a supporting block, a return spring, a return plate, a ratchet wheel and a steel wire rope pulley plate assembly; the lever assembly comprises a lever shaft and a lever, the rear end of the lever is connected with an electromagnet armature and is overlapped with a sliding block in the button or toggle assembly, the front end of the lever is provided with a clamping groove, and the clamping groove of the lever at the front end of the lever is overlapped with the lower bulge at the rear end of the supporting block in a resetting state, namely, is matched with the lower bulge, so that the supporting block is prevented from rotating clockwise around the supporting shaft; when the smoke-discharging fireproof valve acts, the button or the poking component is pressed or the electromagnet works the armature to move to poke the rear end of the lever, the lever rotates under moment, the lower bulge at the rear end of the supporting block is separated, the supporting block and the pawl component can be separated when rotating around the rotating shaft, and the ratchet wheel rotates anticlockwise around the central shaft (13) under the action of the pulling force of the steel wire rope in the steel wire rope wheel disc; the pawl assembly is arranged on the reset plate, the supporting block, the pawl assembly and the reset plate are relatively fixed and can rotate around the supporting shaft or the rotating shaft, and the pawl at the upper end of the pawl assembly is arranged between gear teeth of the ratchet wheel in the reset state.
Description
Technical Field
The invention relates to a fire-fighting smoke-discharging fire-proof valve, which comprises a positive pressure air port valve, a fire-proof valve and a remote control executing mechanism of the smoke-discharging valve.
Background
The fire-fighting smoke-discharging fire-proof valve includes positive pressure air port valve, fire-proof valve and smoke-discharging valve, etc. it is a smoke-proofing system and smoke-discharging system which are set in the building and can be used for preventing the spread of fire smoke and the start-stop device of the possible safe air-supplying device. Smoke protection system: and a mechanical pressurizing air supply mode or a natural ventilation mode is adopted to prevent the smoke from entering the areas such as the evacuation channels. Smoke exhaust system: and a mechanical smoke discharging mode or a natural smoke discharging mode is adopted to discharge the smoke to a system outside the building. Mechanical pressurization air supply: for stairwells, antechambers and other systems where smoke protection and removal is required.
In the smoke-discharging fire-proof valve with remote control actuating mechanism, the smoke-discharging fire-proof valve includes valve body, blade and control shaft control of blade opening and closing, the rotation of control shaft is controlled by winding one end of steel wire, and the other end of steel wire is wound on the described remote control actuating mechanism of valve, and the remote control actuating mechanism adopts the invented device.
The smoke exhaust fireproof valve is normally open or normally closed, and depends on the form of a smoke exhaust port. The setting of fire prevention valve among the ventilation air conditioning system selects "high-rise building rule" and "building rule" all has the requirement to the setting of fire prevention valve: (1) the air pipe passes through the fireproof partition; (2) Crossing the partition wall and floor of the room with great importance or fire hazard in ventilation, air conditioning room; (3) A fire prevention valve is arranged on a horizontal pipe section at the joint of the vertical air pipe and each layer of horizontal air pipe, but when the ventilation and air conditioning systems of each fireproof subarea of the multi-layer building are independently arranged, the joint of the horizontal air pipe and the vertical main pipe in the fireproof subarea can be provided with no fire prevention valve; and (4) arranging one air pipe on each of the two air pipes penetrating through the deformation joint. The fire-proof valve is normally opened, and is automatically closed when the temperature of the fire-proof valve reaches 70 ℃ in a fire disaster. The fire-proof valve should be close to the fire-proof separation department and should establish a gallows alone. When the fire-proof valve is concealed, an access hole should be arranged at the installation position. When no measures are taken to prevent backflow in the vertical exhaust ducts of the public rooms, fire protection valves must be provided on the branch ducts. In the public building kitchen, because the temperature of the oil smoke is higher, in order to prevent the fire damper from generating misoperation, a fire damper fusing at 150 ℃ is arranged at the junction of the oil smoke exhaust pipeline and the vertical air duct.
Setting of fire prevention valve in the air conditioner centralized fresh air system design: the fresh air system is generally in the form of a layered horizontal fresh air system and a vertical fresh air system. (1) The total fresh air vertical duct of the layered horizontal fresh air system spans the fireproof partition, and a fireproof valve fusing at 70 ℃ is arranged on the suction inlet air duct of each layer of fresh air unit. (2) The vertical air duct of the vertical fresh air system spans a fireproof partition, and the air supply outlet is required to be provided with a fireproof valve fusing at 70 ℃. The smoke discharging fire-proof valve which can be automatically closed when the joint of the smoke discharging branch pipe and the vertical air duct is 280 ℃ is arranged in both the vertically arranged walk smoke discharging system and the horizontally arranged room smoke discharging system. The smoke exhaust fire-proof valve is normally open or normally closed, when a smoke exhaust pipeline of one fire-proof partition is provided with smoke outlets of a plurality of smoke-proof partitions for a room smoke exhaust system, the normally open smoke exhaust fire-proof valve is arranged on the fire-proof partition main pipe, and meanwhile, the normally closed smoke outlets or smoke exhaust valves are arranged on the smoke-proof partition branch pipes. See https:// wenku. Baidu. Com/view/f111f18582d00c67.Html.
The fire control smoke evacuation fire damper acts: hard wiring direct action of the micro switch (in the actuating mechanism) by utilizing the positive pressure air supply valve; feeding back an opening signal through a monitoring module and hard wiring; the inlet main pipe of the smoke exhaust fan is provided with a smoke exhaust fireproof valve which can be automatically closed when the smoke temperature exceeds 280 ℃, the smoke exhaust fireproof valve is interlocked with the smoke exhaust fan, and when the smoke exhaust fireproof valve is closed, the fan stops running. The smoke exhaust fan can be ensured to continuously work for 30min at 280 ℃. It should be noted that, the smoke exhaust fire prevention valve is set in front of and behind the smoke exhaust fan, and is flexibly determined according to specific situations. For example, when the basement is only one floor and the smoke is discharged outdoors through the vertical duct, the smoke discharge fire damper is preferably arranged on the smoke discharge fan inlet main pipe. When the number of basement layers is two or more, each layer shares a smoke exhaust shaft, each layer of smoke exhaust fireproof valve should be arranged on the main pipe of the smoke exhaust fan outlet, namely, close to one side of the smoke exhaust shaft.
The device for separating smoke areas in underground and large-space smoke prevention and exhaust systems of civil air defense engineering and high-rise civil buildings. When the fire control center sends out a fire alarm signal or directly receives a smoke feeling signal, a smoke blocking vertical wall (an actuating mechanism) arranged above the suspended ceiling is controlled to drop down to a set height rapidly to form a smoke zone, and the smoke blower is used for discharging high-temperature smoke out of the room rapidly, so that an environment is created for the lifesaving and evacuation of people in the fire zone, and time is striven for. The fire control room can display the working state of the fan power supply of the smoke prevention and exhaust system for controlling the smoke prevention and exhaust system. The fire control room can display the manual and automatic working states of the smoke preventing and exhausting system and the normal working state and the action state of the fan of the smoke preventing and exhausting system. The fire control room can control the actions of the smoke prevention and exhaust system fan, the electric smoke exhaust fireproof valve, the electric smoke blocking vertical wall, the electric fireproof valve, the normally closed air supply outlet, the smoke exhaust valve (opening) and the electric smoke exhaust window and display feedback signals thereof.
For example, the main functions of the remote control smoke exhaust valve are the same as those of the smoke exhaust valve, except that the valve body of the remote control smoke exhaust valve is separated from the operating device, the operating device is arranged on a wall which is near the valve body and has a height of about 1200mm from the ground, and the operator is connected with the valve body through a steel wire rope for remote control, wherein the length of the steel wire rope is generally 6m. The following functions are required: 1. electric control: the electric signal (DC 24V) electromagnet action valve of the fire control center is automatically opened; 2. manually opening and manually resetting; 3. and outputting a group of active contact signals and a group of passive contact signals after opening. If necessary, a trigger action end of the temperature sensor is also arranged.
The remote control smoke exhaust fire prevention valve actuating mechanism needs an operator to be connected with a valve body through a steel wire rope for remote control, and the existing device comprises a box body, a binding post, a micro switch, a 24V electromagnet, a rope wheel disc with a rotating shaft and a fixed shaft and a ratchet wheel, wherein the ratchet wheel is matched with a torsion spring on a swing frame and a pawl connected with the pawl shaft, and the swing frame is also connected with a pulling rod, a micro pressure spring and an action rod of the 24V electromagnet; an armature, which is configured to provide an electromagnet to the pawl, is controlled by the lever to the pawl, thereby allowing the ratchet to be controlled. The current coaxial rope pulley of ratchet wheel can rotate manually, through the wire rope of manual handle coiling on the rope pulley dish, the wire rope of coiling on the rope pulley dish can release under elasticity or gravity, carry out remote control valve, because need manual control valve, still need can control the interlock control to the pawl through the lever with the armature of electro-magnet during manual control in order to prevent the maloperation control to the valve, therefore, present manual control's executive device also stirs the pawl through a manual handle, because current lever interlock mechanism is complicated, pawl stirs manual handle and rope pulley pivoted manual handle and is the same or similar structure, frequent maloperation during the use, and the structure of rotation handle needs to be improved.
CN200982459Y discloses a remote smoke exhaust valve actuating mechanism, which comprises a binding post, a micro switch and a binding post seat which are fixed on the bottom plate in the box body and the panel; the rope pulley with the rotating shaft and the fixed shaft and the ratchet wheel are matched with a torsion spring on the swing frame and a pawl connected with the pawl shaft through the ratchet wheel, the swing frame is also connected with a pulling rod and a micro-motion pressure spring, and the micro-motion pressure spring is fixed on the swing frame seat through a swing frame screw and the torsion spring; the swing frame is also fixed on the bottom plate, the swing rod seat is connected with a swing rod screw and a swing rod of the torsion spring to be matched, and the swing rod is also connected with the electromagnet; the device also comprises a button sleeve with a button shaft, a torsion spring and a pressing ring, wherein the button sleeve is fixed on the bottom plate, the button is fixed at the end of the button shaft, and a rocker on the rocker shaft is respectively matched with the rocker and the pressing ring to form a button assembly; the panel is also connected with a movable flip cover, and the matching part of the fixed shaft and the rotating shaft is also connected with a sealing ring. The main disadvantage of the existing mechanism is that the existing mechanism needs to be reset manually twice during reset: the first step, the supporting plate is manually reset and overlapped with the lever, and the second step is to reset the ratchet wheel component by using the wrench, so that the operation is complicated, the sequence is easy to be misplaced, and parts are easy to be damaged when the sequence is misplaced.
Generally, the utility and reliability of the structure of the button shaft, torsion spring, pressing ring and button cover described above still need to be improved.
Disclosure of Invention
The invention aims to provide a remote control smoke exhaust fire prevention valve actuating mechanism of a smoke exhaust fire prevention valve for fire protection or safety guarantee, which can be manually opened and manually reset by a button and is compatible with the opening and closing of an electromagnet; and outputting a group of active contact signals and a group of passive contact signals after opening.
The technical scheme of the invention is that the remote control actuating mechanism for the smoke exhaust fire prevention valve comprises a bottom plate, a switch collision block, a micro switch, a button or toggle assembly, an electromagnet, a lever assembly, a pawl assembly, a supporting block, a reset spring, a reset plate, a ratchet wheel and a steel wire rope wheel disc assembly; the lever assembly comprises a lever shaft and a lever, the rear end of the lever is connected with an electromagnet armature and is overlapped with a sliding block in the button or toggle assembly, the front end of the lever is provided with a clamping groove, and the clamping groove of the lever at the front end of the lever is overlapped with the lower bulge at the rear end of the supporting block in a resetting state, namely, is matched with the lower bulge, so that the supporting block is prevented from rotating clockwise around the supporting shaft; when the smoke-discharging fireproof valve acts, the button or the poking component is pressed or the electromagnet works the armature to move to poke the rear end of the lever, the lever rotates under moment, the lower bulge at the rear end of the supporting block is separated, the supporting block and the pawl component can be separated when rotating around the rotating shaft (the lever rotates around the supporting column anticlockwise), and the ratchet wheel rotates anticlockwise around the central shaft (13) under the action of the pulling force of the steel wire rope in the steel wire rope wheel disc; the pawl assembly is arranged on the reset plate, the supporting block, the pawl assembly and the reset plate are relatively fixed and can rotate around a supporting shaft or a rotating shaft (10-1), and the upper end pawl of the pawl assembly is arranged between gear teeth of the ratchet wheel in a reset state; when the smoke exhaust fire-proof valve acts, the finger button or the poking component is pressed or the electromagnet works the armature to move to poke the rear end of the lever, so that the front end lever clamping groove is separated from the lap joint of the lower bulge at the rear end of the supporting block.
When the smoke exhaust fireproof valve is reset, the rear end of the reset plate can contact with the switch collision block of the micro switch during rotation; the ratchet wheel and steel wire rope pulley assembly comprises a ratchet wheel, a steel wire rope pulley disc and a central shaft, wherein the ratchet wheel and the steel wire rope pulley disc which are coaxial are fixed and rotate on the central shaft, and one end of a steel wire is fixed and wound around the steel wire rope pulley disc; reset plate, fixed plate, ratchet and wire rope sheave dish subassembly, switch ram, micro-gap switch, button subassembly, electro-magnet, lever subassembly, pawl subassembly, reset spring, supporting shoe all install on the bottom plate.
The lever assembly comprises a lever pin shaft, an integrated lever and a clamping groove at the front end of the lever, the pawl assembly comprises a pawl, a rear stop baffle integrally prepared with the pawl, a long strip-shaped hole is formed in the center (front of the rear stop baffle) of the pawl (the plate where the pawl is located), the rear end of the rear stop baffle is fixed with a reset spring, the reset spring is arranged above the reset plate, the pawl and the rear stop baffle integrally prepared with the pawl are fixed below the reset plate, a rotating shaft is a supporting block, the reset plate and an installation shaft of the pawl assembly, and the rotating shaft is inserted into the long strip-shaped hole formed in the center of the pawl.
The invention discloses a smoke exhaust fire prevention valve of a remote control executing mechanism, which comprises a smoke exhaust fire prevention valve and the remote control executing mechanism, wherein the remote control executing mechanism is arranged above the smoke exhaust fire prevention valve. The smoke-discharging fireproof valve comprises a valve body and a control shaft with fixed blades, one end of a steel wire is wound on a lever fixed on the control shaft, and the other end of the steel wire is fixed on and surrounds the ratchet wheel component of the remote control executing mechanism.
The working process of the invention comprises the following steps: in a normal state, namely in a reset state, the electromagnet and the button are at normal positions, namely the electromagnet does not work, the button is not pressed (or the toggle button is not toggled), the front end lever clamping groove 6-2 and the rear end bulge of the supporting block 9 are in matched positions, namely are in fit lap joint in the reset state, the rear end bulge of the supporting block 9, the upper end pawl and the reset plate are relatively fixed and cannot rotate, the pawl 7-1 is arranged between the teeth of the ratchet wheel, the ratchet wheel can only rotate unidirectionally, the ratchet wheel and the steel wire rope wheel can only be manually rotated clockwise by using an inner hexagonal wrench in the figure (in the prior art), the ratchet wheel and the steel wire rope wheel disc rotate clockwise on the central shaft correspondingly when rotating, the steel wire drives a control shaft and the like on the valve body to rotate in a tensioning manner, and the valve is in a first state, namely in the reset state; if the button is pressed down or the electromagnet works to attract any action, the movable fixed end of the electromagnet armature or the button component drives the rear end lever to rotate anticlockwise, the clamping groove on the front end lever is separated from the rear end bulge of the supporting block 9, the supporting block (the rear end bulge) and the pawl component can rotate around the rotating shaft 10-1, the pawl is equivalent to the unhooked state, the steel wire can drive the ratchet to rotate anticlockwise under the action of the reset force by the tensioning valve body shaft and the like, and the blade of the smoke exhaust fireproof valve rotates to enable the valve or the air door to enter the opened or actuated state.
The beneficial effects are that: the invention relates to a smoke-discharging fire-proof valve and a remote-control smoke-discharging fire-proof valve actuating mechanism, which are connected with a valve body through a steel wire rope to carry out remote control, and comprise all functions of the existing device, and the manual control and the control of an electromagnet are fully compatible and achieve the same functions, the elements in the aspects of electric appliances of a microswitch and a 24V electromagnet are all composed of the same positions of buttons which are controlled manually, the linkage mechanism of a lever and a supporting block is not complex, and the invention has the following control functions and electric control: an electromagnet action valve action of a fire center electric signal (DC 24V); manually actuating the valve; and outputting a group of active contact signals and a group of passive contact signals after the action. If necessary, a trigger action end of the temperature sensor is also arranged on the valve body. The invention does not need to reset manually twice, the mechanical action is reliable, and the test of the times required by the standard is passed in practice. The invention achieves all functions of the existing device, is ingenious in design of a mechanical structure, is completely compatible with control of an electromagnet by hand, achieves the same action control effect, and completely comprises a lever and a supporting block, wherein the overlap joint and the separation of a pawl tooth and a ratchet tooth are very reliable, the action is direct, and the overlap joint of the lever and the supporting block and the overlap joint of the pawl tooth and the ratchet tooth after the action is reliable; the overlapping contact between the pawl and the ratchet teeth fails after actuation, but does not separate, thereby ensuring simultaneous resetting of the internal states of the valve and the actuator while rotating the reset ratchet assembly. The invention solves the problem that the actuating mechanism in the field is not solved, and the invention is also a device with reliable mechanical automation. The manual intervention is reliable and least, automatic execution is achieved, and the resetting is performed manually by one-time simple intervention.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic structural view of a button assembly according to the present invention.
FIG. 3 is a schematic view of the mounting structure of the pawl assembly of the present invention.
Detailed Description
In the smoke-discharging fire-proof valve with remote control actuating mechanism, the smoke-discharging fire-proof valve includes valve body, blade and control shaft control of blade opening and closing, the rotation of control shaft is controlled by fixing one end of steel wire on the lever end portion of control shaft, and the other end of steel wire is winded on the described remote control actuating mechanism, and the remote control actuating mechanism adopts the invented device.
As shown in the figure, the device comprises a bottom plate 1, a switch collision block 2, a micro switch 3, a button or toggle assembly 4, an electromagnet 5, a lever assembly, a pawl assembly, a supporting block 9, a return spring 8, a return plate 10, a fixed plate 11 and a ratchet wheel and steel wire rope pulley disc assembly 12; a lever shaft 6-1, a central shaft 13 and a steel wire 14 are fixed on the bottom plate; the lever assembly comprises a lever shaft and a lever, the rear end of the lever shaft is provided with a movable fixed end which is movably connected with the electromagnet armature and the button assembly, the front end of the lever shaft is provided with a clamping groove, the clamping groove at the front end of the lever is in fit and overlap joint (match) with the bulge at the rear end of the supporting block 9 when the lever is in a reset state, and the bulge at the rear end of the supporting block 9 is separated from the clamping groove of the lever when the lever is in action; the pawl assembly is arranged on the reset plate 10, the supporting block, the pawl and the reset plate 10 are relatively fixed and can rotate around the rotating shaft 10-1, and the upper pawl (tooth) 7-1 is arranged between the teeth of the ratchet wheel 7 in the reset state; after the action, the pawl (tooth) 7-1 moves clockwise around the shaft under the action of the right thrust of the tooth of the ratchet wheel 7, and the lap joint of the pawl (tooth) 7-1 and the ratchet wheel fails; the rear end of the reset plate can contact with a switch collision block of the micro switch when rotating; the ratchet wheel and wire rope pulley assembly 12 comprises a ratchet wheel, a wire rope pulley disc and a central shaft, wherein the ratchet wheel and the wire rope pulley disc which are coaxial rotate on the central shaft, and a wire is fixed on the wire rope pulley disc and wound around the wire rope. The reset plate 10, the fixed plate 11, the ratchet wheel and steel wire rope pulley plate assembly 12, the switch collision block 2, the micro switch 3, the button assembly, the electromagnet 5, the lever assembly, the pawl assembly, the reset spring 8 and the supporting block 9 are all arranged on the bottom plate 1.
The button assembly comprises a button 4-1, a vertical inclined plate 4-3, a spring 4-2, a button mounting bracket 4 and a poking connecting rod 4-4, wherein a slotted hole 4-5 and the vertical inclined plate 4-3 on the poking connecting rod are inserted into the slotted hole. The button and the vertical sloping plate are integrated and arranged on the button mounting bracket, the button spring is sleeved at the upper end of the vertical sloping plate, the toggle connecting rod is in the horizontal direction, and the toggle connecting rod is linked with the lever assembly. The electromagnet 5 is an electromagnet working at DC 24V.
The lever assembly comprises a lever shaft 6-1, an integrated lever 6 and a clamping groove 6-2 at the front end of the lever, a supporting block (a rear end bulge) is clamped by the clamping groove in the same way as the clamping groove, when the supporting block is prepared by a flat plate, the rear end bulge of the supporting block is a plate with the edge bent downwards and is clamped in the clamping groove, when an electromagnet is attracted or a button is pressed down, the clamping groove moves left, the supporting block (the rear end bulge) is separated from the clamping groove, and the pawl assembly comprises pawls 7-1 which can be passively rotated (clockwise or anticlockwise) around the rotating shaft 10-1, and at the moment, a ratchet wheel is released, although the pawls are still positioned between ratchet teeth at the moment; when neither the electromagnet nor the button acts, the front end of the lever is reset rightwards; when the manual spanner rotates the ratchet assembly clockwise, the pawl of the pawl assembly rotates anticlockwise around the rotating shaft 10-1 under the action of the friction force of the ratchet wheel and the torsion force of the supporting block reset tension spring 10, and the bending part of the rear end bulge of the supporting block reenters the clamping groove of the lever clockwise and is in lap joint locking.
In fig. 3, the pawl assembly comprises a pawl 7-1 and a vertically upturned rear stop baffle 7 integrally prepared with the pawl, a long waist-shaped or long strip-shaped hole 7-2 is formed in the center of the rear stop baffle, the rear end of the rear stop baffle 7 is fixed with a reset spring 8, the front end of the reset spring 8 is fixedly arranged on a reset plate 10, the pawl 7-1 and the rear stop baffle 7 integrally prepared with the pawl are fixed below the reset plate, a rotating shaft 10-1 is a supporting block 9, the pawl 7-1, a reset plate and a mounting shaft of the pawl assembly (the supporting block 9, the reset plate and the pawl assembly are sleeved on the mounting shaft), and the mounting shaft is inserted into the front end of the long strip-shaped hole 7-2 formed in the rear stop baffle; when the ratchet wheel and wire rope wheel disc assembly 12 is rotated clockwise by using an inner hexagonal wrench (related to the ratchet wheel tooth direction of the ratchet wheel, corresponding to the figure 1 of the invention), the ratchet teeth are pushed away continuously along the bevel edge of the ratchet wheel teeth and are embedded between ratchet teeth one by one in a reciprocating manner under the action of the reset spring 8, the long-strip-shaped hole 7-2 is formed in the pawl 7-1, the rotary shaft 10-1 penetrates into the long-strip-shaped hole 7-2, the pawl 7-1 is driven by the reset spring 8 to do reciprocating motion under the limit of the long-strip-shaped hole 7-2 (when anticlockwise, the bulge at the rear end of the supporting block is limited by the clamping groove, and the ratchet cannot rotate reversely at the position of the nearly right-angle edge). Reference numeral 11 of the fixed plate, ratchet wheel and wire rope pulley plate assembly 12. The rear end of the supporting block 9 is provided with a rear end bulge matched with the clamping groove and is matched with the shape of the clamping groove in a concave-convex way. The fixing plate 11 is not needed, and a fixing frame can be used for fixing the ratchet wheel and the central shaft in the steel wire rope pulley plate assembly 12 firmly.
When in a reset state, the electromagnet and the button are at normal positions, namely the electromagnet does not work, the button is not pressed, when in the reset state, the clamping groove 6-2 at the front end of the lever and the bulge at the rear end of the supporting block 9 are at matched positions, then the bulge at the rear end of the supporting block 9, the pawl at the upper end and the reset plate 10 are relatively fixed and can not rotate, the pawl 7-1 is arranged between the teeth of the ratchet wheel, the ratchet wheel can only rotate in a unidirectional clockwise direction, only manually in the figure, the inner hexagonal wrench can rotate in a clockwise direction, and when in rotation, the inner hexagonal wrench rotates in a clockwise direction on the central shaft corresponding to the disc of the steel wire rope, and then the steel wire drives the valve shaft to be tensioned, so that the valve is in a reset state; if the button is pressed down or the electromagnet works to attract, the movable fixed end of the electromagnet armature or the button component drives the rear end lever to rotate anticlockwise, the clamping groove on the front end lever is separated from the rear end bulge of the supporting block 9, the supporting block (the rear end bulge) and the pawl component can rotate clockwise around the rotating shaft 10-1, the pawl is equivalent to the unhooked state, the tensioned valve shaft steel wire can drive the ratchet to rotate anticlockwise, and the blade or the valve of the smoke exhaust fire prevention valve can enter the action state (opening or closing and being set according to the requirement). When the pawl can rotate around the rotating shaft 10-1, the right end of the supporting plate 9 is separated from the switch collision block 2 of the micro switch; a valve action signal is sent to the control end of the building through the micro switch. The valve actuation signal may then determine the electromagnetic operation or disconnection, in which case the actuator of the invention returns to the reset state. The pawl also resets (the resetting process is described in the previous section), the ratchet wheel and the wire rope wheel are manually rotated clockwise, the wire is wound on the wire rope wheel, the wire drives the valve shaft to be tensioned, and the valve is in a resetting state. One end provided with a supporting block reset tension spring 9-1 is used for fixing the supporting block 9 for pulling the supporting block to rotate and reset. Torsion springs can also be arranged on the rotating shafts of the lever and the like to reset the member.
The ratchet wheel component works as follows: when the pawl is released, the pulling force of the steel wire rope makes the ratchet wheel device rotate anticlockwise, and when the ratchet wheel device is reset, the inner hexagonal wrench rotates clockwise to overcome the pulling force of the steel wire rope.
The elastic force of the supporting block reset tension spring 9-1 (torsion spring can be adopted) enables the supporting block to rotate anticlockwise until reset to a reset state, at the moment, the pawl is lapped into a groove of the ratchet wheel, and the ratchet wheel cannot rotate anticlockwise; at this time, the front ends of the supporting block 9 and the lever are provided with matching grooves and tenons, namely, the notches are in protruding matching lap joint with the supporting block.
The supporting block and the front end of the lever are provided with matching grooves and tenons, namely protrusions and notches, the supporting block is arranged below, the pawl is arranged in the middle, the reset plate is arranged above the pawl, the pawl slides along the hole in the middle, and the supporting block or the reset plate is drilled with holes for installing a vertical rotating shaft.
After the action, under the action of the reset tension spring 9-1 or the reset torsion spring arranged under the supporting plate, when the inner hexagonal wrench is used for resetting the ratchet, the pawl device can automatically recover to an initial state (the state that the ratchet is limited by the pawl teeth) at the same time, so that the ratchet and the pawl teeth are effectively overlapped again, and the output passive signals can be output in a group of two groups.
The supporting block 9 and the front end of the lever are provided with matching grooves and tenons, namely notches and protrusions, the supporting block 9 (shaped flat plate structure) is arranged below, the pawl is arranged in the middle, the reset plate is arranged above the pawl, the pawl can slide along the hole in the middle, and the holes are arranged on the supporting block and the reset plate and are used for installing the vertical rotating shaft 10-1.
Embodiments of the button assembly: the lever assembly has the function of providing a force for poking the lever at the rear end of the lever shaft, so that the button assembly can be structurally provided with a poking button and a poking connecting rod for fixing the poking button, and the end part of the poking connecting rod is in linkage contact or fixed with the lever at the rear end of the lever shaft, namely a left-right poking rod is provided; if the installation position of the manual handle is the same as that of the existing smoke exhaust fireproof valve, the button assembly is better in the following structure: the button assembly comprises a button, a vertical inclined plate, a compression spring, a button support 4 and a stirring connecting rod, wherein the end part of the stirring connecting rod is in linkage contact with or fixed with a lever at the rear end of the lever shaft, the button is fixed with the vertical inclined plate, or the compression spring is sleeved on a lever inside the button, the button support is fixed on a bottom plate, a hole which enables the button to vertically stretch out and draw back is exposed on the button support, the vertical inclined plate is fixed at the lower part of the button, the vertical inclined plate is arranged in a rectangular hole formed in the surface of the stirring connecting rod, the tip of the vertical inclined plate is downward, and the lever is provided with an armature iron and a movable fixed end of the button assembly, such as the lever is relatively fixed with the lever through a pin shaft or the lever is stirred through a hook. The external specification of the valve actuator is equivalent to that of the existing actuator, the rope wheel disc with the coaxial ratchet wheel can be manually rotated by a tool, the steel wire rope wound on the rope wheel disc can be released under the elasticity or the gravity by a manual handle (wrench), and the valve actuator can be controlled by a manual button or an electromagnet.
Claims (4)
1. The remote control actuating mechanism for the smoke exhaust fire prevention valve is characterized by comprising a bottom plate, a switch collision block, a micro switch, a button or toggle assembly, an electromagnet, a lever assembly, a pawl assembly, a supporting block, a reset spring, a reset plate, a ratchet wheel and a steel wire rope wheel disc assembly; the lever assembly comprises a lever shaft and a lever, the rear end of the lever is connected with an electromagnet armature and is overlapped with a sliding block in the button or toggle assembly, the front end of the lever is provided with a clamping groove, and the clamping groove of the lever at the front end of the lever is overlapped with the lower bulge at the rear end of the supporting block in a resetting state, namely is matched with the lower bulge, so that the supporting block is prevented from rotating clockwise around a supporting shaft (10-1); when the smoke-discharging fireproof valve acts, the button or the shifting component is pressed or the electromagnet works the armature to move to shift the rear end of the lever, the lever rotates under moment, the lower bulge at the rear end of the supporting block is separated, the supporting block and the pawl component can rotate around the rotating shaft, the pawl is separated, and the ratchet wheel rotates anticlockwise around the central shaft (13) under the action of the pulling force of the steel wire rope in the steel wire rope wheel disc; the pawl assembly is arranged on the reset plate, the supporting block, the pawl assembly and the reset plate are relatively fixed and can rotate around the supporting shaft (10-1) or the rotating shaft, and the upper end pawl of the pawl assembly is arranged between gear teeth of the ratchet wheel in the reset state; when the smoke exhaust fire-proof valve acts, the finger button or the poking component is pressed or the electromagnet works the armature to move to poke the rear end of the lever, so that the joint of the front end lever clamping groove and the lower bulge of the rear end of the supporting block is separated; when the smoke exhaust fireproof valve is reset, the rear end of the reset plate can contact with the switch collision block of the micro switch during rotation; the ratchet wheel and steel wire rope pulley assembly comprises a ratchet wheel, a steel wire rope pulley disc and a central shaft, wherein the ratchet wheel and the steel wire rope pulley disc which are coaxial are fixed and rotate on the central shaft, and one end of a steel wire is fixed and wound around the steel wire rope pulley disc; the reset plate, the fixed plate, the ratchet wheel and the steel wire rope pulley plate assembly, the switch collision block, the micro switch, the button assembly, the electromagnet, the lever assembly, the pawl assembly, the reset spring and the supporting block are all arranged on the bottom plate;
The lever assembly comprises a lever pin shaft, an integrated lever and a clamping groove at the front end of the lever, the pawl assembly comprises a pawl and a rear stop baffle integrally prepared with the pawl, a long strip-shaped hole is formed in the center of the pawl, the rear end of the rear stop baffle is fixed with a reset spring, the reset spring is arranged above the reset plate, the pawl and the rear stop baffle integrally prepared with the pawl are fixed below the reset plate, and a rotating shaft is a supporting block, the reset plate and an installation shaft of the pawl assembly and is inserted into the long strip-shaped hole formed in the center of the pawl;
one end provided with a supporting block reset spring (9-1) is used for fixing the supporting block (9) and pulling the supporting block to rotate and reset;
the supporting block and the front end of the lever are provided with matching grooves and tenons, namely protrusions and notches, the supporting block is arranged below, the pawl is arranged in the middle, the reset plate is arranged above the pawl, and the supporting block or the reset plate is drilled with holes for installing vertical rotating shafts.
2. The remote control actuator for a smoke exhaust fire prevention valve according to claim 1, wherein the button assembly comprises a button, a vertical inclined plate, a spring, a button mounting bracket and a toggle connecting rod, the button and the vertical inclined plate are integrated and mounted on the button mounting bracket, the button spring is sleeved at the upper end of the vertical inclined plate, the toggle connecting rod is in a horizontal direction, a slotted hole is formed in the toggle connecting rod, the vertical inclined plate is inserted into the slotted hole, and the toggle connecting rod is interlocked with the lever assembly.
3. The remote control actuator for a smoke exhaust fire damper according to claim 1, wherein the toggle assembly is a toggle assembly, the toggle assembly comprises a toggle button and a toggle link for fixing the toggle button, and an end of the toggle link is in linkage contact with or fixed at the rear end of the lever.
4. A smoke-exhausting fire-proof valve prepared by a remote control actuator according to any one of claims 1-3, comprising a smoke-exhausting fire-proof valve and a remote control actuator, characterized in that the remote control actuator is installed above the smoke-exhausting fire-proof valve; the smoke-discharging fireproof valve comprises a valve body and a control shaft with fixed blades, one end of a steel wire is wound on a lever fixed on the control shaft, and the other end of the steel wire is fixed on and surrounds the ratchet assembly of the remote control executing mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911012839.6A CN110630807B (en) | 2019-10-23 | 2019-10-23 | Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911012839.6A CN110630807B (en) | 2019-10-23 | 2019-10-23 | Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof |
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| CN110630807A CN110630807A (en) | 2019-12-31 |
| CN110630807B true CN110630807B (en) | 2024-06-11 |
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| CN201911012839.6A Active CN110630807B (en) | 2019-10-23 | 2019-10-23 | Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof |
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| CN111520526B (en) * | 2020-05-27 | 2024-07-19 | 宁波凡灵风阀执行器有限公司 | Actuator of smoke exhaust valve |
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|---|---|---|---|---|
| FR13201E (en) * | 1910-05-25 | 1911-02-20 | Dresdner Presskartonnagen Ind | Tachometer |
| CN200982459Y (en) * | 2006-07-22 | 2007-11-28 | 王兆君 | Remote flue-discharging valve operating mechanism |
| CN206190997U (en) * | 2016-11-23 | 2017-05-24 | 孙智峰 | Executor is closely controlled to fire prevention smoke damper |
| CN109552686A (en) * | 2017-09-26 | 2019-04-02 | 湖北职业技术学院 | A kind of cutting sheet ratchet rope withdrawing apparatus |
| CN210860000U (en) * | 2019-10-23 | 2020-06-26 | 靖江市新佰洋空调设备科技有限公司 | Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108614B (en) * | 2007-09-17 | 2010-06-23 | 安徽驰瑞达光电科技发展有限公司 | Anti-collision retarding brake and emergency brake arrangement of vehicle |
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2019
- 2019-10-23 CN CN201911012839.6A patent/CN110630807B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR13201E (en) * | 1910-05-25 | 1911-02-20 | Dresdner Presskartonnagen Ind | Tachometer |
| CN200982459Y (en) * | 2006-07-22 | 2007-11-28 | 王兆君 | Remote flue-discharging valve operating mechanism |
| CN206190997U (en) * | 2016-11-23 | 2017-05-24 | 孙智峰 | Executor is closely controlled to fire prevention smoke damper |
| CN109552686A (en) * | 2017-09-26 | 2019-04-02 | 湖北职业技术学院 | A kind of cutting sheet ratchet rope withdrawing apparatus |
| CN210860000U (en) * | 2019-10-23 | 2020-06-26 | 靖江市新佰洋空调设备科技有限公司 | Remote control actuating mechanism for smoke exhaust fire damper and smoke exhaust fire damper thereof |
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| CN110630807A (en) | 2019-12-31 |
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Effective date of registration: 20240510 Address after: No. 52 Xinyi Road, Chengbei Park, Jingjiang City, Taizhou City, Jiangsu Province, 225300 Applicant after: Jiangsu Zhongda air conditioning equipment Co.,Ltd. Country or region after: China Address before: No. 21 Shannan Road, Chengbei Park, Jingjiang City, Taizhou City, Jiangsu Province, 225300 Applicant before: Jingjiang xinbaiyang air conditioning equipment Technology Co.,Ltd. Country or region before: China |
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