CN2033874U - Pedal valve - Google Patents

Abstract

The utility model discloses a pedal stop valve used for controlling gases or liquids. A valve plug is covered on the juncture of an input cavity and an output cavity at the side of the input cavity and connected with a spring, so the acting force of the fluid and the spring to the valve plug has the same direction as the shutting and cutting off direction of the valve plug. Therefore, the shut and the cutoff of the valve are reliable. The seal between a connecting bar and the mating surface of a valve end opening is an elastic seal by sealing medium instead of the fixing seal in the past. An elastic rubber pipe is sheathed on the connecting bar and a valve end opening part, and the fit clearance and the output cavity are completely divided so that the sealing point has no abrasion. The utility model has the advantages of no leakage and long service life.

Description

Pedal valve

The utility model relates to a kind of stop valve, the foot-operated stop valve of particularly a kind of control gaseous or liquid.

The employed foot-operated running water stop valve ubiquity in scullery, lavatory, bathroom of unit leakage phenomenon now, its main cause is that the sealing between connecting rod and the valve port fitting surface is unreliable, the general asbestos layer that adopts is wrapped in the fitting surface upside that then asbestos layer is pressed into connecting rod and valve port on the connecting rod, matching gap with sealing connecting rod and valve port, then connecting rod resistance when the face of being mated relatively moves is big but if the asbestos lamination gets too tightly, and the connecting rod difficulty that resets also, if asbestos lamination De Taisong very easily leaks tap water from fitting surface.In a word, owing to carry out fricting movement between connecting rod and sealing medium always, the sealing medium quick abrasion causes leaking, and causes waste, and has increased the workload of frequent maintenance.

The purpose of this utility model is to provide a kind of sealing reliable, gas, liquid all is suitable for leak free foot-operated stop valve.

Content of the present utility model is achieved in that the mating face seal with the connecting rod of valve and valve port, change elastic packing by former sealing medium at the port fixing seal, when making link motion and sealing medium do not wear and tear, being about to an elastic rubber tube is enclosed within on the interior connecting rod of valve body, make one end lock ring connecting rod, the other end lock ring on the valve body port parts with the connecting rod Spielpassung, therefore the matching gap of connecting rod and valve body port is isolated from outside the output cavity by elastic rubber tube, owing to be flexible sealing, make connecting rod still can promote valve plug and do to open and close motion again.Close by reliable in order to make valve, the valve plug of input cavity and output cavity covers intersection input cavity one side in two chambeies in isolation valve body, and, its spring of closing by power connects mutually with being provided, the fluid and the spring that enter input cavity like this are consistent with closing by direction of valve plug to the active force of valve plug, make valve plug be in reliable normally off all the time.

Since adopted the rational deployment of elastic packing and valve plug, the foot-operated stop valve that the utility model is provided, sealing is reliable, nothing is leaked, long service life, and particularly suitable is made gas valve or liquid valve.

Below in conjunction with the accompanying drawings concrete structure of the present utility model is further described with embodiment:

The main pseudosection of the foot-operated stop valve that Fig. 1 provides for the utility model.

Fig. 2 is the right elevation of Fig. 1 structure.

Fig. 3 is the plan view of Fig. 2 structure.

Drawing explanation: 1-briquetting, 2-end cap, 3-seal cartridge, 4-seal ring, 5-sebific duct, 6-connecting rod, 7-pedal, 8-valve body, 9-seal ring, 10-steel wire, 11-sealing gasket, 12-spring, 13-valve plug, 14-pin, 15-bottom.

The foot-operated stop valve that the utility model provides is made up of valve body, valve plug, connecting rod, spring, sealing medium and pedal.Valve is two logical, and valve body is bottom input cavity and top output cavity, and input cavity one side cover of two chamber intersections has a valve plug 13, and valve plug has for 13 times a boss to be inserted in spring 12.Bottom 15 screws with the valve bottom outlet, and spring is being supported in its inner, retainer ring compression seal circle 9.There is a small column at center above the valve plug 13, and the sealing gasket 11 of valve plug is enclosed within on the small column, and connecting rod 6 lower end surfaces have a circular hole also to be enclosed within on the small column, and its upper-end surface heads on the briquetting 1 that an end face has locating slot.With valve body 8 port parts of connecting rod 6 Spielpassung be that the center has the seal cartridge 3 that there is a retainer ring matching hole and outer, the cylindrical of seal cartridge 3 is dress mouths of elastic rubber tube 5.The elastic rubber tube 5 one end lock rings that are enclosed within on the connecting rod 6 connecting rod, and the other end lock ring the dress mouth of seal cartridge 3, sebific duct 5 the most handy silicone rubber tubes.Seal cartridge is lined with seal ring 43 times, and end cap 2 screws with the valve port, compresses seal cartridge 3, thus the seal valve port.There are a hole and briquetting Spielpassung in end cap 2 centers.Pedal 7 has " U " v notch v, and its opening connects with a pin 14 and valve body, and steel wire 10 two ends are bound up on respectively on pedal 7 bi-side, the middle embedding in the locating slot.Foot pedal 7 during use, and the lever of generation is depressed valve plug 13, opening of valves by steel wire 10, briquetting 1, connecting rod 6; Release the pedal 7, spring force and hydrodynamic pressure make valve plug 13 recover original closed form again.

Claims (4)

1, a kind of foot-operated stop valve of forming by valve body, valve plug, connecting rod, spring, sealing medium and pedal, the valve plug 13 that it is characterized in that an isolation valve body 8 interior input cavities and output cavity covers two chamber intersection input cavity one sides, and connect mutually with its spring 12 of closing by power is provided, connecting rod 6 and with it between the valve body port parts of Spielpassung with elastic rubber tube 5 captive closures.

2, valve according to claim 1 is characterized in that connecting rod 6 one ends are supporting valve plug 13, and the other end heads on briquetting 1.

3, valve according to claim 1 and 2 is characterized in that the valve body port parts with connecting rod 6 Spielpassung are that end cap 2 next centers have matching hole, and there is the seal cartridge 3 of retainer ring the outer, and the cylindrical of seal cartridge is the dress mouth of elastic rubber tube 5.

4, valve according to claim 3 is characterized in that elastic rubber tube 5 the most handy silicone rubber tubes.

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