CN2703938Y

CN2703938Y - Electric-resetting type smoke-proof fire-retardant valve mechanism

Info

Publication number: CN2703938Y
Application number: CN 200420022212
Authority: CN
Inventors: 郑荣俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-26
Filing date: 2004-04-26
Publication date: 2005-06-08
Anticipated expiration: 2014-04-26

Abstract

The utility model relates to an electric-resetting type smoke-proof fire-retardant valve mechanism which belongs to a fire-fight product. The electric-resetting type smoke-proof fire-retardant valve mechanism comprises a fuse, the tension spring of the fuse, a main shaft arm, the impacting plate of the fuse, a locking lever torsion spring, a locking lever shaft, a locking lever, a reduction gear, a motor support, a locking pole, a big gear wheel, a main shaft sleeve, a reversible motor, a housing, a hand lever, a hand pull rope, a switch plate, the tension spring of the switch plate, an elastic sheet steel, and a switch. The electric-resetting type smoke-proof fire-retardant valve mechanism is characterized in that a torsion spring whose inside diameter is smaller than the inside diameter of the main shaft is sheathed on the main shaft which is provided coaxially with the reduction gear, a torsion spring sleeve is fastened on the torsion spring, and locking lever pole is arranged on the lower end of the locking lever. When the reversible motor rotates counterclockwise, the electric-resetting type smoke-proof fire-retardant valve mechanism resets and the torsion spring becomes inactive. When the motor rotate clockwise, the gear shaft rotates and drives the torsion spring and the torsion spring sleeve to rotate all together because the gear shaft is fastened by the torsion spring, and the torsion spring sleeve drives the locking lever and the main shaft arm to release and then the valve is closed. The structure for ratchet wheels and ratchet pawls is replaced, which makes the operating mechanism of the motor simple and the action more reliable.

Description

Electronic position restoring Smoke proofing and fire proofing valve system

Technical field

The utility model relates to a kind of electronic position restoring Smoke proofing and fire proofing valve system, belongs to the fire-fighting series products.

Background technique

The utility model be my application and the patent No. of having authorized be to improve on 032302312 the basis, this structural feature is that thorn wheel constitutes cooperating of " click " formula with the support tooth, when reversible electric machine just changes, ratchet clockwise rotates, the support tooth is inoperative, ratchet rotates counterclockwise during the reversible electric machine counter-rotating, ratchet promotes the support tooth, promote locking lever by the support tooth locking column and spindle arm unhook are discharged, valve cuts out, yet, remain in deficiency, the difference of the row position of former ratchet mechanism requires very high, and reliability was just poor when then mechanism closed as deviation, in use brings difficulty for the operator.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming of prior art, provides a kind of employing helical torsion spring to hug rotation together on gear shaft, promotes locking lever and takes off lock, reaches the structure letter of mechanism, and processing cost is low, the position restoring Smoke proofing and fire proofing valve system of reliable performance.

The technical solution of the utility model is achieved like this, and it is by fus, the fus extension spring, spindle arm, fus crash panel, locking lever torsion spring, the locking lever axle, locking lever, reduction gear, electric machine support, locking column, gearwheel, collar bush, reversible electric machine, shell, hand lever, manual stay cord, switch plate, the switch plate extension spring, elastic steel sheet, switch is formed, and is characterized in, with be equipped with the torsion spring of an internal diameter on the coaxial gear shaft of reduction gear less than gear, be equipped with cam on the torsion spring, an end of torsion spring is fixedlyed connected with cam, and described locking lever lower end is equipped with the locking lever post.

The beneficial effects of the utility model are: when reversible electric machine is rotated counterclockwise, mechanism resets, gear shaft contrary rotation direction in torsion spring is rotated, cam can be located motionless, when motor turns clockwise, because torsion spring fastening teeth wheel shaft is during the gear shaft rotation, for rotating along the torsion spring rotation direction, gear shaft is embraced tighter and tighter the torsion spring cam is rotated together, promote locking lever and spindle arm unhook release by cam, make valve closing, by using the torsion spring of internal diameter less than the gear shaft external diameter, mode that can only one-way rotation realizes closing of valve and resets, the structure that has replaced click makes electric machine actuating mechanism simple, moves more reliable.

Description of drawings

Fig. 1 is structural front view of the present utility model and reset mode figure;

Fig. 2 is a drive mechanism side view of the present utility model;

Fig. 3 is main shaft releasing state figure;

Fig. 4 is a reset mode control switch release graphics;

Fig. 5 is torsion spring, torsion spring set erection drawing;

Fig. 6 is the partial enlarged drawing of Fig. 5.

Embodiment

The utility model will be further described below in conjunction with drawings and Examples.Extremely shown in Figure 5 by Fig. 1, a kind of electronic position restoring Smoke proofing and fire proofing valve system, it is by fus 1, fus extension spring 2, spindle arm 3, fus crash panel 10, locking lever torsion spring 11, locking lever axle 12, locking lever 13, gear 15,18,23, electric machine support 16, locking column 17, gear 18, collar bush 20, motor 24, shell 22, hand lever 27, manual stay cord 28, switch plate 29, switch plate extension spring 30, elastic steel sheet 31, switch 32 is formed, be characterized in, with be equipped with the torsion spring 25 of an internal diameter on the coaxial gear shaft 26 of reduction gear 15 less than gear shaft 26, be equipped with cam 14 on the torsion spring 25, described locking lever 13 lower ends are equipped with locking lever post 17.

By Fig. 1,2,3, shown in 4, the utility model is by fus 1, fus extension spring 2, spindle arm 3, reset arm 4, reset arm torsion spring 5, torsion spring pillar 6, hook torsion spring 7, hook axle 8, hook 9, fus crash panel 10, locking lever torsion spring 11, locking lever axle 12, locking lever 13, cam 14, gear 15, electric machine support 16, locking column 17, gearwheel 18, the bearing pin 19 that resets, collar bush 20, spacing bearing pin 21, shell 22, reduction gear 23, motor 24, torsion spring 25, gear shaft 26, hand lever 27, manual stay cord 28, switch plate 29, switch plate extension spring 30, elastic steel sheet 31, switch 32 is formed.

Torsion spring 25 is sleeved on the gear shaft 26, cam 14 is sleeved on the torsion spring 25, one end of torsion spring 25 is fixed on the cam 14, fus crash panel 10, locking lever torsion spring 11, locking lever 13, hand lever 27, switch plate 29 all is movably arranged on the lock shaft 12 simultaneously, the other end of locking lever 13 is equipped with locking column 17, spindle arm 3 is fixedlyed connected with collar bush 20, and spacing bearing pin 21 is fixedly mounted on the spindle arm 3, and reset arm 4 is movably arranged on the collar bush 20, torsion spring pillar 6, hook axle 8 is fixedly mounted on the reset arm 4, and hook 9 is movably arranged on the hook axle 8, and an end of hook torsion spring 7 is connected with hook 9, the other end is connected with torsion spring pillar 6, and the bearing pin 19 that resets is fixed on the gearwheel 18.

The working procedure of electronic position restoring Smoke proofing and fire proofing valve system, shown in Figure 1, when motor gets electric rotating counterclockwise, gearwheel 18 also rotates counterclockwise, thereby drive hook 9 pulling reset arm 4 drive spindle arms 3 by the bearing pin 19 that resets and be rotated counterclockwise 90 degree together, locking lever 13 makes locking column 17 locks advance the breach of spindle arm 3 under the effect of locking lever torsion spring 11, meanwhile, hook 9 breaks off relations with the bearing pin 19 that resets, under the effect of torsion spring 5 and torsion spring 7, make reset arm 4 and link up with 9 and return the original place, valve reset.

By shown in Figure 3, when motor once more electric turning clockwise, the torsion spring internal diameter is less than the external diameter of gear shaft 26, when gear shaft 26 was rotated counterclockwise, promptly along the torsion spring rotation, torsion spring 25 was embraced tighter and tighter on gear shaft, one end of torsion spring drives cam 14 rotations, promote an end of locking lever 13, make locking column 17 break away from the indentation, there of spindle arm 3, discharge spindle arm 3 and make valve closing.

By shown in Figure 4, when locking lever 13 took off lock, locking column 17 pushing switch plates 29 contacted with switch 32, make the switch transition phase place.Connect reset power, after resetting, locking column 17 falls into the spindle arm breach, loses the thrust to switch plate 29, breaks away from switch 32 switch is discharged, and connects the closing motion power supply.

Claims

1. electronic position restoring Smoke proofing and fire proofing valve system, it is by fus, the fus extension spring, spindle arm, fus crash panel, locking lever torsion spring, the locking lever axle, locking lever, reduction gear, electric machine support, locking column, gearwheel, collar bush, reversible electric machine, shell, hand lever, manual stay cord, switch plate, the switch plate extension spring, elastic steel sheet, switch is formed, and it is characterized in that, with be equipped with the torsion spring (25) of an internal diameter on the coaxial gear shaft (26) of reduction gear (15) less than gear shaft (26), be equipped with cam (14) on the torsion spring (25), an end of torsion spring (25) is connected with cam (14), and described locking lever (13) lower end is equipped with locking lever post (17).