CN2501523Y

CN2501523Y - Fire-extinguisher cock

Info

Publication number: CN2501523Y
Application number: CN 01260357
Authority: CN
Inventors: 杨振兴; 蔡文祥
Original assignee: Changxing Science & Technology Co Ltd
Current assignee: Changxing Science & Technology Co Ltd
Priority date: 2001-09-17
Filing date: 2001-09-17
Publication date: 2002-07-24
Anticipated expiration: 2011-09-17

Abstract

An extinguisher braking switch comprises an extinguisher, a pressure handle, an elastic hinge, and a shift switch. A nozzle is fixedly arranged at top of the extinguisher, fire-extinguishing agent is filled in the nozzle; a valve base of a valve is convexly arranged on the nozzle, a muzzle is connected in bolts with one side of the nozzle, a grip is fixedly arranged on the nozzle, and another side of the nozzle is provided with a manometer; the pressure handle is hinged on the grip by the elastic hinge; the shift switch is hinged with the pressure handle by a pin roll, and convexly extends outside a slotted hole of the pressure handle. The valve of the extinguisher can be open or braked by shifting the shift switch to ON end or OFF end of the slotted hole, all disadvantages caused by the safety pin structure can be overcame. The utility model has simple structure, convenient use, reliable and safe braking.

Description

The fire extinguisher brake switch

Technical field

The utility model relates to the fire extinguisher annex in the fire-fighting equipment, especially the push rod that refers to a kind of change-over switch has two kinds of on-positions that compress or do not compress the sincere valve rod of pressure that is connected in spool, and simple to operate, can guarantee the fire extinguisher brake switch that fire extinguisher is safe in utilization again.

Background technology

The brake switch of at present general fire extinguisher, referring to Fig. 1, be on the shower nozzle 10 of fire extinguisher 1, to be provided with change-over switch 11, be convexly equipped with one on the change-over switch 11 and press sincere valve rod 12, set firmly a handle 13 on the shower nozzle 10, shower nozzle 10 sidewalls are established a Pressure gauge 14 and a nozzle 15, on the handle 13 by a bearing pin 16 hinged pressure handles 17, two sidewalls of pressure handle 17 respectively are provided with corresponding through hole 18, and safety pin 19 covers insert in the two through hole 18, and are fastened in apical margin 130 upper limits of handle 13, pressure handle 13 can not be pressed down, so change-over switch can't be opened the valve of fire extinguisher, make extinguishing chemical spray the principle of safety arrestment that Here it is and mechanism from nozzle 15.When fire extinguishing, must earlier safety pin 19 be pulled out in two through hole 18, just can press down pressure handle 17, promote to press sincere valve rod 12 to move down, make change-over switch open the valve of fire extinguisher, extinguishing chemical sprays to the flame fire extinguishing in nozzle 15; But this kind safety pin structure is very easily by card and withdrawing does not come out, and affects fire extinguishing opportunity adversely, very easily loses again after the use, brings a difficult problem for the repeated use of fire extinguisher, even maloperation takes place, and makes the extinguishing chemical ejection, pollutes or injures.

Summary of the invention

The purpose of this utility model be to provide a kind of must pin safe in utilization, can be with the fire extinguisher safety arrestment, and operation fire extinguisher brake switch very easily.

The purpose of this utility model is achieved in that a kind of fire extinguisher brake switch, mainly on the shower nozzle of fire extinguisher, convex with valve seat, be provided with in the through hole of valve seat and press sincere valve rod, one side of shower nozzle is provided with nozzle, be installed with handle on the shower nozzle, two walls of handle are provided with through hole relatively, and two sidewalls of pressure handle relatively also are provided with through hole, one bearing pin is extended through in the through hole of pressure handle and handle, and pressure handle and handle are articulated; It is characterized in that: also be provided with the torque spring that is stretched through and be provided with by bearing pin between handle and the pressure handle, an end of this torque spring supports the inner face at pressure handle, and the other end then supports the inner face at handle, and the end face of pressure handle is provided with slotted eye, is provided with change-over switch in the slotted eye; This change-over switch is vertical when switching to the ON position, and its bottom is resisted against and presses on the sincere valve rod, and when pushing pressure handle, change-over switch can press sincere valve rod to press down, and the fire extinguisher valve seat is opened sprayed extinguishing chemical; When change-over switch switched to the OFF position, it is skewed that change-over switch is, and its bottom no longer is resisted against presses on the sincere valve rod, pushes pressure handle this moment and still can not touch the sincere valve rod of pressure.

The utility model also can be realized by following measure: the apical margin opposite position of above-mentioned handle two sides is provided with grooving; Above-mentioned change-over switch is provided with an axis hole, and two sidewalls of pressure handle are provided with axis hole relatively, and a bearing pin passes the axis hole of pressure handle and change-over switch, change-over switch is located in the slotted eye of pressure handle.

Advantage of the present utility model is: owing to do not adopt the brake structure of conventional security pin, so can overcome all drawbacks of bringing thus.And simple in structure, easy to use, reliable, the safety of braking.

Description of drawings

Fig. 1, be the schematic diagram of existing fire extinguisher change-over switch.

Fig. 2, be three-dimensional exploded view of the present utility model.

Fig. 3, be three-dimensional combination figure of the present utility model.

Fig. 4, be partial sectional view of the present utility model.

Fig. 5, be the partial sectional view of the utility model opening.

The specific embodiment

Referring to Fig. 2, be the utility model most preferred embodiment, a kind of fire extinguisher brake switch mainly comprises: fire extinguisher 2, pressure handle 3, elastic hinge 4 and change-over switch 5; Fire extinguisher 2 tops install shower nozzle 20, dress extinguishing chemical in it; Be convexly equipped with the valve seat 21 of valve on the shower nozzle 20, establish through hole 22 in the valve seat 21, be provided with the sincere valve rod 23 of the pressure that is connected in spool in the through hole 22; One side of shower nozzle 20 is bolted with nozzle 24, is installed with handle 25 on the shower nozzle 20, and the apical margin symmetry of handle 25 both sides is offered grooving 26, is provided with identical symmetrical through hole 27 on two walls before grooving 26, and shower nozzle 20 1 sides are provided with Pressure gauge 28; Pressure handle 3 is articulated on the handle 25 by elastic hinge 4, is respectively equipped with corresponding through hole 30 and axis hole 31 on the two side of pressure handle 3, and it is the slotted eye 32 that links to each other for narrow groove in the middle of the circular arc that pressure handle 3 front end upper wall surfaces are provided with two ends; Elastic hinge 4 mainly comprises torque spring 41 and bearing pin 40, torque spring 41 is set on the bearing pin 40, two ends are pressed on respectively on the internal face of handle 25 and pressure handle 3, and the symmetrical through hole 30 of pressure handle 3 both sides is sleeved on the bearing pin 40, and bearing pin 40 two ends are packed in the handle 25 bilateral symmetry through holes 27; The push rod 50 of change-over switch 5 is provided with axis hole 51, and push rod 50 cover is inserted in the slotted eye 32 of pressure handle 3, and its axis hole 51 is sleeved on the bearing pin 52, and the two ends of bearing pin 52 are packed in the two corresponding axis holes 31 of pressure handle 3 and fix.

During assembling, see also Fig. 2-4, earlier push rod 50 covers with change-over switch 5 are inserted in the slotted eye 32 of pressure handle 3, make the through hole 51 of push rod 50 align the axis hole 31 of pressure handle 3, bearing pin 52 via through holes 51 are packed in the axis hole 31 of pressure handle both sides, the top of push rod 50 is stretched out outside the slotted eye 32; The torque spring 41 of elastic hinge 4 is placed in the pressure handle 3, again pressure handle 3 is pressed in the two side of handle 25, make the through hole 30 of torque spring 41 endoporus and pressure handle 3 both sides align the through hole 27 of handle 25 both sides, make bearing pin 40 pass the two through hole 30 of torque spring 41 endoporus and pressure handle 3, its two ends are locked in the through hole 27 of handle 25 both sides, and the two ends of torque spring 41 are pressed on respectively on the inwall of pressure handle 3 and handle 25, i.e. assembling is finished.

Referring to Fig. 4, when not using, push rod 50 tops of change-over switch 5 are shifted onto the OFF end of pressure handle 3 slotted eyes 32, push rod 50 is skewed, and limit by the narrow groove of slotted eye 32, can not compress the sincere valve rod 23 of pressure in the through hole 22, when lifting fire extinguisher exactly or being pressed into pressure handle 3 because of carelessness, the spool of valve can not move, and extinguishing chemical just can not spray in fire extinguisher 2 yet, thereby reaches the purpose of fire extinguisher safety arrestment.

Referring to Fig. 5, when desire is used, only need the push rod 50 of change-over switch 5 is shifted onto the ON end of the slotted eye 32 of pressure handle 3, make the sincere valve rod 23 of pressure in the push rod 50 perpendicular alignmnet through holes 22, and be subject to the narrow groove of slotted eye 32 and be positioned ON end, then insert in the through hole 22 of valve seat 21 bottom of push rod 50; Desire to make extinguishing chemical ejection, only need push pressure handle 3 along the direction of arrow, 50 of push rods promote to press sincere valve rods 23 to move down and open valve, and extinguishing chemical sprays to flame in the nozzle 24 immediately and puts out a fire.And pressure handle 3 is when pushing downwards, and the bearing pin 52 that is articulated in push rod 50 slips in the grooving 26 of lever 25, can be anti-mutually with the apical margin of lever 25.Therefore operation is very easy, pin not safe in utilization, and change-over switch 5 can reach the purpose of safety arrestment fully.

Claims

1, a kind of fire extinguisher brake switch, mainly on the shower nozzle of fire extinguisher, convex with valve seat, be provided with in the through hole of valve seat and press sincere valve rod, one side of shower nozzle is provided with nozzle, be installed with handle on the shower nozzle, two walls of handle are provided with through hole relatively, and two sidewalls of pressure handle relatively also are provided with through hole, one bearing pin is extended through in the through hole of pressure handle and handle, and pressure handle and handle are articulated; It is characterized in that: also be provided with the torque spring that is stretched through and be provided with by bearing pin between handle and the pressure handle, an end of this torque spring supports the inner face at pressure handle, and the other end then supports the inner face at handle, and the end face of pressure handle is provided with slotted eye, is provided with change-over switch in the slotted eye; This change-over switch is vertical when switching to the ON position, its bottom is resisted against presses on the sincere valve rod, and when change-over switch switched to the OFF position, it is skewed that change-over switch is, and its bottom breaks away from pressing sincere valve rod.

2, according to the described fire extinguisher brake switch of claim 1, it is characterized in that: the apical margin opposite position of above-mentioned handle two sides also is provided with grooving.

3, according to the described fire extinguisher brake switch of claim 1, it is characterized in that: above-mentioned change-over switch is provided with an axis hole, and two sidewalls of pressure handle are provided with axis hole relatively, and a bearing pin passes the axis hole of pressure handle and change-over switch, change-over switch is located in the slotted eye of pressure handle.