CN2221696Y

CN2221696Y - Remote valve controller

Info

Publication number: CN2221696Y
Application number: CN 94239825
Authority: CN
Inventors: 郑荣俊
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-14
Filing date: 1994-12-14
Publication date: 1996-03-06
Anticipated expiration: 2004-12-14

Abstract

The utility model relates to a remote valve controller used for fire valves, etc. A traditional controller has the defects that the reliability is poor, and the traditional controller can not replace automatically. The utility model improves a ratchet wheel, and comprises a resistance-drop sheet. An inner ratchet is arranged on the ratchet wheel, a pawl is fixed on the rope drum, and the resistance-drop sheet is provided with a spacing groove. A spacing pin is fixed on the ratchet wheel and extends into the spacing groove. The outer edges of the resistance-drop sheet and the ratchet wheel are provided with grooves, and the ratchet wheel is locked by a locking device through the grooves. The utility model overcomes the defect of the traditional controller, and has the advantages of high reliability and automatic replacement. The utility model can smoothly release steel cables.

Description

Remote valve control

The utility model relates to a kind of remote valve control, with supporting uses such as fire-closing valve, exhaust smoke valves.

Fire-closing valve in all kinds of buildings, exhaust smoke valve etc. generally all need a remote-operated controller to control its opening and closing.Fig. 1 shows a kind of structure of traditional controller.As can be seen from Figure 1, this controller has a rope drum 101, steel cable 102 is on rope drum 101, with the rope drum 101 coaxial outer ratchets 103 that are fixed with, below ratchet 103, a ratchet 105 is set by pawl lever 104, ratchet 105 can mesh with outer ratchet 103 by the effect of extension spring 106, stops ratchet 103 and rope drum 101 to rotate.In the bottom of controller, be provided with a calutron 107, when electromagnet 107 adhesives, with the lever 108 of calutron 107 interlocks pawl lever 104 is broken off relations, ratchet 105 is deviate from outer ratchet 103, and rope drum 101 rotates under the pulling of steel cable 102, emits steel cable 102.In this controller, because ratchet 105 is installed on the lever 104, when steel cable 102 is tightened up, the rotating force of ratchet 103 all acts on the ratchet, ratchet is dislocated smoothly, extension spring 106 on pawl lever 104 must provide enough pulling force, on the pull lever 104, drives ratchet 105 dislocations.But the pulling force with this extension spring 106 increases, and the pressure that is born on the lever 108 is also just big more, so just requires calutron 107 to provide enough big power that pawl lever 104 is broken off relations.In actual use, the elastic cable paper of supplying with calutron 107 electric power is long more, and the voltage drop on the line is just big more, the suction of calutron is reduced, so present controller exists the shortcoming of poor reliability.On the other hand, from top structure, it can also be seen that, can not automatically reset after the ratchet dislocation, when receiving the commentaries on classics steel cable for the second time, need move reset cam 109 ratchet is resetted, make troubles to use.

The purpose of this utility model is to provide a kind of remote valve control, its reliable operation, and can automatically reset.

Remote valve control of the present utility model comprise the folding and unfolding steel cable rope drum, can be with the ratchet of described rope drum interlock, be used to lock lock that described ratchet rotates and the calutron that fastens described lock by lever lock, controller of the present utility model also comprises a fall-blocking plate, described fall-blocking plate, ratchet and the coaxial installation of rope drum, described ratchet is provided with interior ratchet, has at least a ratchet to be fixed on the described rope drum by pawl axis; Offer at least one restraining groove at described fall-blocking plate along its circumference; Be fixed with quantity and position and the corresponding and position-limited nail that stretch into this restraining groove of restraining groove on the described fall-blocking plate on the described ratchet; Offer at least one groove at described fall-blocking plate and ratchet outer rim; Described lock comprises that described locking wheel can embed in the groove of described fall-blocking plate by the back shaft of band torsion spring fixing locking lever and the locking wheel that is connected on the described locking lever.

Because the ratchet of remote valve control of the present utility model has adopted interior ratchet, in locking structure, adopted groove and locking wheel structure, the rotating force major part of ratchet is acted on the back shaft rather than locking lever of lock, thereby reduced tripping force greatly, improved the functional reliability of controller.This practicality has also solved the problem of automatically reseting with regard to the valve control of type.

Describe an embodiment of the present utility model in detail below in conjunction with accompanying drawing.Other advantage of the present utility model and effect will become clear by embodiment.

Fig. 1 is the structural representation of traditional remote valve control;

Fig. 2 is the structural representation of remote valve control of the present utility model;

Fig. 3 is the sectional view along Fig. 2 A-A line;

Fig. 4 is the sectional view along Fig. 3 B-B line;

Fig. 5 is along the sectional view of C-C line among Fig. 3.

See also Fig. 2 and Fig. 3, remote valve control of the present utility model mainly includes rope drum 1, ratchet 2, fall-blocking plate 3, lock 4 and calutron 5.Rope drum 1 is used for folding and unfolding steel cable 6.As can be seen from Figure 3, rope drum 1, ratchet 2 and fall-blocking plate 3 usefulness main shafts 7, coaxial setting.

See also Fig. 5, ratchet 2 is a ring, and its inner rim is provided with interior ratchet 21.Referring to Fig. 3, have a pair of ratchet 8 to be fixed on the rope drum 1 by pawl axis 9 simultaneously, ratchet 8 meshes with the interior ratchet 21 of thorn wheel 2.When rope drum 1 rotated counterclockwise, rope drum 1 drove ratchet 2 by ratchet 8 and rotates; When rope drum 1 up time was rotated, 8 pairs of ratchets 2 of ratchet had certain power drive spine move 2 to rotate together, and when ratchet 2 resistances were excessive, then ratchet 2 can not be driven.The quantity of ratchet 8 can determine as required, also can adopt 1 or 3,4 etc.

Outer rim at ratchet 2 is provided with one or more grooves, is provided with four grooves 22 in the present embodiment, and these grooves 22 evenly are provided with (see figure 5) along circumference.As shown in Figure 4, in groove 22 corresponding groove 32 that also offer on the fall-blocking plate 3 on quantity, shape and position and the ratchet 2, its circumference offers at least one restraining groove 31 in fall-blocking plate 3 upper edges, and the quantity of restraining groove 31 is 4 in the present embodiment.Groove 22 and 32 can semicircular in shape.As shown in Figure 3, with the position-limited nail 10 that quantity and restraining groove 31 are identical that copper sheathing 11 and ratchet 2 is fixing, and position-limited nail 10 stretches into the radian measure beta of the restraining groove 31 interior restraining grooves 31 of fall-blocking plate 3 can determine that restraining groove 31 radian measure beta are 25 ° in the present embodiment according to groove 21,31 width.As can be seen from Figure 3, between ratchet 2 and fall-blocking plate 3, can be encased inside a slice pad 12.In the present embodiment, because the quantity of restraining groove 31 is 4, so the quantity of position-limited nail 10 also is 4.

As shown in Figure 2, lock 4 comprises locking lever 41 and locking wheel 42, locking lever 41 is fixing rotationally by the back shaft 44 that has torsion spring 43, torsion spring 43 provides downward reposition force to lever 41, locking wheel 42 is rotatably connected on the locking lever 41 by wheel shaft 45, and locking wheel 42 is round wheel shape, and is corresponding with groove 21,31 semi-circular shapes on ratchet 2 and the fall-blocking plate 3, certainly groove 21,31 and locking wheel 42 also can adopt other shape, as ellipse etc.Calutron 5 is lived the locking lever 41 of lock 4 by a lever 13 snap closes, locking wheel 44 is embedded in ratchet 2 that overlaps and the groove 21,31 that hinders sheet 3, locking ratchet 2, make it and to rotate, because the effect of internal clickwork 21 and ratchet 8, rope drum 1 can not rotate counterclockwise, and emits steel cable 6, can only clockwise rotate receipts around steel cable 6.

After calutron 5 adhesives, lever 13 outer moving, the locking lever 41 of lock 4 is threaded off, rope drum 1 is under the tension of steel cable 6, rotate counterclockwise, driving ratchet 2 rotates, locking wheel 44 is released groove 21,31, fall-blocking plate 3 also in position at this moment, when the ratchet rotation reaches 25 ° (being the radian measure beta of the restraining groove 31 on the fall-blocking plate 3), drive fall-blocking plate 3 by position-limited nail 10 and rotate together, this moment, fall-blocking plate groove 31 and ratchet recesses 21 misplaced, form a full circle, the drum 1 of therefore restricting can reach to emitting steel cable 6 in 360 ° of rotations.

When regaining steel cable 6 once more, as long as clockwise rotate rope drum 1, ratchet 2 rotates with rope drum 1 under the drive of ratchet 8, after turning over 25 °, fall-blocking plate groove 31 and ratchet recesses 21 overlap, and continue rotation together, the locking wheel 42 of lock 4 falls into groove 21,31 in the effect of torsion spring 43, locking ratchet 2 and fall-blocking plate 3, rope drum 1 then can continue rotation, and till tighten up steel cable 6.

As can be seen, this practicality can automatically reset with regard to the controller of type from top description, and is therefore easy to use.

Controller of the present utility model is the same except a calutron 5 with traditional controller, also is provided with a manual operating device 14, is used for carrying out manual release, and its structure is similar to traditional manual operating device, is not described in detail in this.

Can emit steel cable 6 reposefully for making remote valve control of the present utility model, it also comprises a damper 15, damper 15 is fixed by a damper 17 that has torsion spring 16, and this torsion spring 16 provides one to press close to ratchet 2 and fall-blocking plate 3 outer rim power to damper 15, makes it stability of rotation.

Claims

1, a kind of remote valve control, comprise the folding and unfolding steel cable rope drum, can be with the ratchet of described rope drum interlock, be used to lock lock that described ratchet rotates and the calutron that fastens described lock by lever lock, it is characterized in that, also comprise a fall-blocking plate, described fall-blocking plate, ratchet and the coaxial installation of rope drum, described ratchet is provided with interior ratchet, has at least a ratchet to be fixed on the described rope drum by pawl axis; Offer at least one restraining groove at described fall-blocking plate along its circumference; Be fixed with quantity and position and the corresponding and position-limited nail that stretch into this restraining groove of restraining groove on the described fall-blocking plate on the described ratchet; Offer at least one groove at described fall-blocking plate and ratchet outer rim; Described lock comprises that described locking wheel can embed in the groove of described fall-blocking plate and ratchet by being with the locking lever that palm axle is fixing and the locking wheel that is connected on the described locking lever of torsion spring.

2, remote valve control as claimed in claim 1 is characterized in that, restraining groove on the described fall-blocking plate and position-limited nail quantity are 4, and the radian of described restraining groove is 25 °.

3, remote valve control as claimed in claim 1 is characterized in that, the groove semicircular in shape on described fall-blocking plate and the ratchet, and quantity is 4, is evenly distributed on described fall-blocking plate and ratchet outer rim.

4, remote valve control as claimed in claim 1 is characterized in that, described ratchet is 1 to 4.

5, as claim 1,2,3 or 4 described remote valve controls, it is characterized in that described locking wheel is pivotally connected on the described locking lever by wheel shaft.

6, remote valve control as claimed in claim 1 is characterized in that, also comprises a damper, and described damper is fixed by the damping axle that torsion spring is arranged, and described damper is contacted with the ratchet outer rim with described fall-blocking plate.