阅读说明：本技术 消防应急启动装置 (Fire-fighting emergency starting device ) 是由 鲍梨明 汪晓阳 于 2020-06-30 设计创作，主要内容包括：本发明提供了一种消防应急启动装置,包括压板、压块、翘板和切换机构。用于启动水泵,水泵通过主接触器、星接接触器和三角接接触器采用星三角启动。压板上下移动以启动及复位主接触器,压板与星接接触器对应的位置开设一开口,压块位于开口内且能在开口内上下移动,翘板具有支点与转动端,转动端可绕支点转动及回转。启动所述水泵时,压板及压块接合,压板带动压块向下移动以同时启动主接触器和星接接触器。在一个设定时间之后,切换机构将压板及压块分离,压块向上移动以复位星接接触器,同时,切换机构带动转动端绕支点转动,以使翘板下压以启动三角接接触器。如此,通过一次操控使得压板向下移动,实现了水泵的星三角降压启动。(The invention provides a fire-fighting emergency starting device which comprises a pressing plate, a pressing block, a warping plate and a switching mechanism. The starting device is used for starting the water pump, and the water pump is started by a star-triangle through the main contactor, the star-connection contactor and the triangle-connection contactor. The pressing plate moves up and down to start and reset the main contactor, an opening is formed in the position, corresponding to the star-connected contactor, of the pressing plate, the pressing block is located in the opening and can move up and down in the opening, the warping plate is provided with a fulcrum and a rotating end, and the rotating end can rotate and rotate around the fulcrum. When the water pump is started, the pressing plate is connected with the pressing block, and the pressing plate drives the pressing block to move downwards so as to start the main contactor and the star connection contactor simultaneously. After a set time, the switching mechanism separates the press plate from the press block, the press block moves upwards to reset the star-connected contactor, and meanwhile, the switching mechanism drives the rotating end to rotate around the fulcrum, so that the rocker plate is pressed downwards to start the delta-connected contactor. So, make the clamp plate downstream through once controlling, realized the star triangle step-down start-up of water pump.)

1. A fire-fighting emergency starting device is used for starting a water pump, the water pump is connected with a power supply through a main contactor, a star-connection contactor and a triangular-connection contactor by adopting star-triangular connection, and the main contactor, the star-connection contactor and the triangular-connection contactor are all provided with starting buttons;

the pressure plate is positioned above the main contactor and the star-connected contactor, the pressure plate is provided with an opening, a starting button of the star-connected contactor corresponds to the opening, the pressure block is positioned in the opening and can move up and down to press or release the star-connected contactor, the warping plate is positioned above the triangular-connected contactor, two ends of the warping plate are respectively a fulcrum and a rotating end, and the rotating end can rotate around the fulcrum;

the switching mechanism is used for switching the combination state of the pressing plate and the pressing block, when the pressing plate and the pressing block are connected, the pressing plate and the pressing block synchronously press the starting buttons of the main contactor and the star connection contactor so as to enable windings of the water pump to be connected in a star connection method, and the water pump is started with first power; after a set time, the pressing plate is separated from the pressing block, the pressing block releases a starting button of the star-connection contactor, meanwhile, the switching mechanism drives the rotating end to rotate around the fulcrum, so that the rocker presses the starting button of the triangular-connection contactor, a winding of the water pump is connected through a triangular connection, and the water pump runs with a second power.

2. A fire emergency starter as claimed in claim 1, wherein the pressing plate releases the start button of the main contactor, and at the same time, the pressing plate drives the rotating end to rotate around the fulcrum, the rocker releases the start button of the delta contactor, and the main contactor and the delta contactor are reset.

3. A fire emergency initiating device as claimed in claim 2, further comprising:

the detection unit is used for detecting the states of start buttons of the star connection contactor and the triangular connection contactor and outputting detection signals;

and the timing unit starts timing after a start button of the star-connected contactor is pressed down, and controls the switching mechanism to switch the combination state of the pressing plate and the pressing block after the set time.

4. A fire emergency initiating device of claim 1, further comprising a frame, the frame comprising:

the bottom plate is used for fixing the main contactor, the star-connected contactor and the triangular-connected contactor;

and the supporting component is arranged at the edge of the bottom plate and used for supporting the pressing plate, the switching mechanism and the warping plate.

5. A fire emergency initiating device as claimed in claim 1 or 4, further comprising:

the pressing piece is rotationally connected with the pressing plate, the pressing piece presses the pressing block to enable the pressing plate to be jointed with the pressing block under a natural state, and the switching mechanism controls the pressing piece to rotate relative to the pressing plate to enable the pressing plate to be separated from the pressing block;

the first torsion spring is arranged at the rotary connection part of the pressing piece and the pressing plate and provides reset power for the pressing piece after the pressing piece rotates;

the limiting block is arranged above the pressing block and used for limiting the upward movement stroke of the pressing block;

the first elastic component is arranged between the rotating end and the triangular connection contactor and provides rotary power for the rotating end;

and the second elastic component is arranged between the pressing plate and the main contactor or between the pressing plate and the star-connected contactor and provides upward moving power for the pressing plate.

6. A fire emergency initiating device as claimed in claim 5, wherein the switching mechanism comprises:

the poking assembly is connected with the pressing piece and used for pulling the pressing piece to rotate;

the pressing component is used for pressing the rotating end of the wane downwards and keeping the wane in a pressing posture;

and the driving assembly simultaneously drives the poking assembly and the pressing assembly through rotation.

7. A fire emergency initiating device as claimed in claim 6, wherein the drive assembly comprises:

the star wheel is used for shifting the shifting assembly and simultaneously pressing the rotating end of the warping plate;

and the driving unit is used for driving the star wheel to rotate and controlling the star wheel to stop rotating when the warping plate keeps a downward pressing posture.

8. A fire emergency initiating device as claimed in claim 7, wherein the toggle assembly comprises:

the star wheel stirs the movable end, so that the movable end rotates around the hinged end;

the limiting rod is positioned below the hinged end and used for limiting the position of the shifting block so that the star wheel can shift the shifting block;

and two ends of the first silk thread are respectively connected with the movable end and the pressing piece, so that the movable end pulls the pressing piece.

9. A fire emergency initiating device as claimed in claim 8, wherein the hold-down assembly comprises:

the lower pressure rod is in lap joint with the rotating end, and the star wheel presses the rotating end of the warping plate downwards through the lower pressure rod when rotating;

the L-shaped locking piece comprises an upper end, a corner end, a lower end, a through hole, a second torsion spring and a clamping pin, wherein the upper end and the lower end can rotate around the corner end, the second torsion spring is arranged at the corner end and provides rotary power for the L-shaped locking piece after rotating, the through hole penetrates through the upper end and the corner end, the lower pressing rod penetrates through the through hole and is in clearance fit with the through hole, and the clamping pin is arranged in the through hole and used for locking and loosening the lower pressing rod;

and two ends of the second silk thread are respectively connected with the lower end and the pressing plate, and when the pressing plate moves upwards, the lower end is pulled to rotate around the corner end, so that the lower pressing rod is loosened by the bayonet lock, and the rotating force of the rotating end of the wane pushes the lower pressing rod to reset.

10. A fire emergency initiating device as recited in claim 9, wherein said switching mechanism further comprises a first fixed pulley and a second fixed pulley, said first wire being connected to said toggle block via said first fixed pulley, said second wire being connected to said L-lock via said second fixed pulley.

Technical Field

The invention relates to the technical field of fire fighting, in particular to a fire fighting emergency starting device.

Background

The contactor is an electric control device, is an electric appliance which enables controlled quantity to generate predetermined step change in an electric output circuit when the change of input quantity (excitation quantity) meets the specified requirement, has an interaction relation between a control system (also called an input loop) and the controlled system (also called an output loop), is usually applied to an automatic control circuit, is an 'automatic switch' which uses small current to control the operation of large current, and therefore plays the roles of automatic regulation, safety protection, circuit conversion and the like in the circuit.

According to the technical specifications of fire-fighting water supply and fire hydrant systems GB50974-2014 and GB16086-2006 standards, pressure starting, remote starting and hard-stay starting are realized by a contactor to automatically start a fire pump, and if the contactor and a weak current signal fail, the fire pump cannot be automatically started, a fire pump is directly started by a 'fire-fighting emergency starting device' arranged on a fire pump control cabinet.

When a control circuit in the fire pump control cabinet breaks down and cannot enable the fire pump to be automatically started, immediate repair is limited by the operation level and the maintenance time of maintenance personnel, and a fire emergency starting device is needed to ensure that the fire pump can be forcibly started no matter how the circuit is powered under the condition that power is normally supplied, so that the timeliness of fire suppression is ensured. The 'fire-fighting emergency starting device' starts a high-power three-phase motor by star-triangle voltage reduction, thereby starting a fire-fighting water pump.

The existing 'fire-fighting emergency starting device' is mostly started in a mechanical mode, and the mechanical 'fire-fighting emergency starting device' needs to be controlled twice to start the star triangle of the water pump. In addition, "emergent starting drive of fire control" does not realize reseing through once controlling, and can't be applicable to the condition that needs remote monitoring.

Disclosure of Invention

The invention aims to provide a fire-fighting emergency starting device which can start a water pump through one-time operation and control, can realize resetting through one-time operation and can realize remote monitoring.

In order to achieve the purpose, the invention provides a fire-fighting emergency starting device which is used for starting a water pump, wherein the water pump is connected with a power supply through a main contactor, a star-connection contactor and a triangle-connection contactor by adopting star-triangle connection, and the main contactor, the star-connection contactor and the triangle-connection contactor are all provided with starting buttons. The fire-fighting emergency starting device comprises a pressing plate, a pressing block, a switching mechanism and a wane;

the clamp plate is located main contactor reaches the top that the star connects the contactor, the clamp plate has an opening, the star connects the start button of contactor to correspond the opening, the briquetting is located in the opening and can reciprocate in order to press or release the star connects the contactor, the wane is located three angles connect contactor top and both ends to be fulcrum and rotation end respectively, it can wind to rotate the end the fulcrum rotates.

The switching mechanism is used for switching the combination state of the pressing plate and the pressing block, when the pressing plate and the pressing block are connected, the pressing plate and the pressing block synchronously press the starting buttons of the main contactor and the star connection contactor so that windings of the water pump are connected in a star connection method, and the water pump is started at a first power. After a set time, the pressing plate is separated from the pressing block, the pressing block releases a starting button of the star-connection contactor, meanwhile, the switching mechanism drives the rotating end to rotate around the fulcrum, so that the rocker presses the starting button of the triangular-connection contactor, a winding of the water pump is connected through a triangular connection, and the water pump runs with a second power.

Optionally, the clamp plate releases the start button of main contactor, simultaneously, the clamp plate drives it winds to rotate the end the fulcrum gyration, the wane release the start button of three-angle joint contactor, main contactor reaches three-angle joint contactor resets.

Optionally, the fire emergency starting device further includes:

and the detection unit is used for detecting the states of the start buttons of the star connection contactor and the triangular connection contactor and outputting detection signals.

And the timing unit starts timing after a start button of the star-connected contactor is pressed down, and controls the switching mechanism to switch the combination state of the pressing plate and the pressing block after the set time.

Optionally, the fire-fighting emergency starting device further comprises a limiting block arranged above the pressing block and used for limiting the upward movement stroke of the pressing block.

Optionally, emergent starting drive of fire control still includes the frame, the frame includes:

the bottom plate is used for fixing the main contactor, the star connection contactor and the triangular connection contactor.

And the supporting component is arranged at the edge of the bottom plate and used for supporting the pressing plate, the switching mechanism and the warping plate.

Optionally, the fire emergency starting device further includes:

the pressing piece is connected with the pressing plate in a rotating mode, the pressing piece presses the pressing block to enable the pressing plate to be connected with the pressing block in a natural state, and the switching mechanism controls the pressing piece to rotate to enable the pressing plate to be separated from the pressing block.

The torsional spring is arranged at the rotary connection part of the pressing piece and the pressing plate, and the torsional spring provides reset power for the pressing piece after the pressing piece rotates.

Optionally, the fire emergency starting device further includes:

and the first elastic component is arranged between the rotating end and the triangular connection contactor and provides rotary power for the rotating end.

And the second elastic component is arranged between the pressing plate and the main contactor or between the pressing plate and the star-connected contactor, and the pressing plate provides power for moving upwards.

Optionally, the switching mechanism includes:

and the poking assembly is connected with the pressing piece and used for pulling the pressing piece to rotate.

And the pressing component is used for pressing down the rotating end of the wane and keeping the wane in a pressing-down posture.

And the driving assembly simultaneously drives the poking assembly and the pressing assembly through rotation.

Optionally, the driving assembly includes:

and the star wheel is used for shifting the shifting assembly and simultaneously pressing the rotating end of the warping plate.

And the driving unit is used for driving the star wheel to rotate and controlling the star wheel to stop rotating when the warping plate keeps a downward pressing posture.

Optionally, the toggle assembly comprises:

the poking block comprises a hinged end and a movable end, and the movable end is poked by the star wheel so that the movable end rotates around the hinged end.

And the limiting rod is positioned below the hinged end and used for limiting the position of the shifting block so that the star wheel can shift the shifting block.

And two ends of the first silk thread are respectively connected with the movable end and the pressing piece, so that the movable end pulls the pressing piece.

Optionally, the rocker push-down assembly comprises:

the lower pressing rod is in lap joint with the rotating end, and the star wheel presses down the rotating end of the warping plate through the lower pressing rod when rotating.

L shape latch fitting, including upper end, corner end, lower extreme, perforation, torsional spring and bayonet lock, upper end and lower extreme can wind the corner end rotates, the torsional spring set up in corner end department, for L shape latch fitting provides the power of gyration after rotating, perforate and link up the upper end with the corner end, the depression bar runs through down perforate and with perforation clearance fit, the bayonet lock set up in the perforation, be used for locking and unclamping depression bar down.

And two ends of the second silk thread are respectively connected with the lower end and the pressing plate, the pressing plate can pull the lower end to rotate around the corner end when moving upwards, so that the bayonet lock in the through hole loosens the lower pressing rod, and the rotary force of the rotating end of the wane pushes the lower pressing rod to move to the position before pressing downwards.

Optionally, the switching mechanism further includes a first fixed pulley and a second fixed pulley, the first thread line is connected to the toggle block through the first fixed pulley, and the second thread line is connected to the L-shaped locking piece through the second fixed pulley.

The fire-fighting emergency starting device provided by the invention is used for starting a water pump, the water pump is connected with a power supply through a main contactor, a star-connection contactor and a triangular-connection contactor by adopting star-triangular connection, the main contactor, the star-connection contactor and the triangular-connection contactor are all provided with starting buttons, and the fire-fighting emergency starting device comprises a pressing plate, a pressing block, a warping plate and a switching mechanism. The clamp plate is located the top that main contactor and star connect the contactor, and the clamp plate has an opening, and the star connects the start button of contactor and corresponds the opening, and the briquetting is located the opening and can reciprocate in order to press or release star and connect the contactor, and the wane is located the triangle and connects the contactor top and have fulcrum and rotation end, and rotation end can rotate around the fulcrum. The switching mechanism is used for switching the combination state of the pressing plate and the pressing block, when the pressing plate and the pressing block are connected, the pressing plate and the pressing block synchronously press the starting buttons of the main contactor and the star-connected contactor so that windings of the water pump are connected in a star-connected mode, and the water pump is started at a first power. After a set time, the pressing plate and the pressing block are separated, the pressing block releases a starting button of the star-connection contactor, meanwhile, the switching mechanism drives the rotating end to rotate around the fulcrum, so that the rocker presses the starting button of the delta-connection contactor, a winding of the water pump is connected in a delta connection mode, and the water pump operates at a second power. Therefore, the pressure plate moves downwards through one-time operation and control, and the fire-fighting emergency starting device can realize star-triangle pressure reduction starting of the water pump.

When the pressing plate and the pressing block are connected, the pressing plate moves upwards to drive the pressing block to move upwards together, meanwhile, the starting buttons of the main contactor and the star contactor are released, and the main contactor and the star contactor reset. When the pressing plate moves upwards, the rotating end capable of driving the warping plate rotates around the fulcrum, the warping plate releases a start button of the triangular contactor, and the triangular contactor resets. So, make the clamp plate rebound through once controlling, all can make main contactor, star contactor and triangle connect the contactor to reset.

The detection mechanism is used for detecting the starting or resetting state of the star-connection contactor and the triangular-connection contactor, and the fire-fighting emergency starting device can also realize the function of remote monitoring through the output signal of the detection mechanism.

Drawings

FIG. 1 is a front view of a fire emergency initiating device in an embodiment of the present invention;

FIG. 2 is a top view of a fire emergency initiating device in an embodiment of the present invention;

FIG. 3 is a partial view of the fire emergency initiating device provided in the present embodiment;

FIG. 4 is a view of the A field of view of the fire emergency initiating device in an embodiment of the present invention;

wherein the reference numbers are as follows:

110-a platen; 120-wrapping posts; 130-a press; 131-torsion spring; 132-a cross beam; 133-column; 140-a limiting block; 150-a second elastic member; 160-opening; 170-knob; 180-limiting plate;

200-briquetting;

300-rocker; 310-a rotation end; 320-fulcrum; 330-a first elastic member;

400-a switching mechanism; 410-a toggle assembly; 411-a toggle block; 412-a stop lever; 413-a first filament; 414-first fixed sheave; 420-rocker press down assembly; 421-a lower pressure lever; 422-L-shaped lock; 423-bayonet lock; 424-second filament; 425-a second fixed pulley; 430-a drive assembly; 431-a drive unit; 432-a star wheel; 440-a carrier;

500-a detection unit; 510-a first microswitch; 520-a second microswitch;

600-frame, 610-main contactor; 620-star contactor; 630-delta connection contactor; 640-a support portion; 650-bottom plate.

Detailed Description

The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.