CN2783059Y - Leakage free needle valve water tap - Google Patents

Abstract

The utility model discloses a dripping leakage free needle valve water tap which has the advantages of simple structure, convenient use, no leakage, low requirements for component processing precision, simple assembly method and long service life, and the method of slightly opening a valve to drip a small amount of water can not be utilized to avoid the counting of water meters. The utility model comprises a valve body, a needle valve rod, a spring, an inner sleeve and a pressure rod. A round hole is arranged on a diaphragm between a water inlet and a water outlet in the valve body, the needle valve rod is installed in the valve body, and a sealing ring is arranged between the lower part and the valve body. The spring is pressed on a lug boss of the needle valve rod by the inner sleeve which is provided with a plurality of grooves on the circumference of the upper end surface, one end of the spring is connected with the needle valve rod through a pin, and the other end extends out from an opening groove on the valve body. A top cover covers the top end of the valve body. The utility model can replace the various existing rotating or raising type water taps to be used for families or other occasions.

Description

No water clock needle-valve water tap

Technical field:

The utility model relates to valve technology field, and specifically, it is a kind of no water clock needle-valve water tap.

Background technique:

At present, the water tap that generally uses has two kinds of structural types substantially.A kind of is to open a circular hole on the tabula between water intake and the water outlet in valve, a leading screw is installed in the standpipe on valve body top, the upper end of leading screw is horizontal rotatable handle, a flat valve that has rubber or nylon pad is installed in the lower end, upper and lower the moving that relies on the leading screw rotation to produce during use, and under the effect of hydraulic pressure, flat valve is lifted from the tabula circular hole, or flat valve is pressed on the tabula circular hole, realize opening and closing the purpose of water tap.The snap switch water taps that another kind is is basic identical with ball-valve structure, handle rotates 90 degree.In these two kinds of water taps, when using, the former handle must be rotated several weeks, could or close valve open, and because structural reason, root part of handle very easily seeps water, particularly, make that the working life of whole water tap is shorter because rubber or nylon pad use the damaged or distortion that produces behind the certain hour.Though the latter has brought a lot of convenience to the user, use a period of time after, the leakage problems at vertical shaft place, valve body top, still can bring a lot of worries to the user.In addition, these two kinds of water taps all can adopt little valve, method of dripping on a small quantity of opening, and avoid the water meter counting, thereby cause the loss of water resources.

Summary of the invention:

The purpose of this utility model is exactly to solve the deficiency that above-mentioned water tap exists, and a kind of easy to use, ne-leakage, long service life are provided, and particularly the needle-valve that its trace is dripped does not have the water clock water tap.

The purpose of this utility model is to realize like this.No water clock needle-valve water tap comprises valve body, Needle shaft, spring, interior cover and depression bar, in valve body (2), have circular hole (12) on the tabula between water intake (11) and the water outlet (1), it is characterized in that: Needle shaft (10) is installed in the valve body (2), be provided with seal ring (9) between bottom and the valve body (2), the interior cover (7) that has several grooves (13) on the circumference of upper-end surface is pressed in spring (8) on the boss of Needle shaft (10), cover (7) was as supporting in depression bar (4) utilized, one end uses pin (6) pin joint on Needle shaft (10), stretch out the fluting (3) of the other end from valve body (2), have several depression bar hanging grooves (14) on the sidewall of fluting (3), top cover (5) covers on the valve body top.

Compared with prior art, the utility model has the advantages that: structure is simple relatively, easy to use, ne-leakage, and part processing precision is less demanding and assembly method is simple, and movable part is not easy to wear, working life is longer relatively; Particularly the utility model just can't utilize little method that opens valve, drips on a small quantity under the situation that does not adopt any special measures, avoids the water meter counting.

Description of drawings:

Fig. 1 is an overall structure schematic representation of the present utility model.

Fig. 2 is that A-A of the present utility model is to sectional view.

Fig. 3 is the structural representation of cover in the utility model.

Fig. 4 is a left view of the present utility model.

Embodiment:

The utility model is further described below in conjunction with accompanying drawing.As shown in Figure 1, valve body 2 of the present utility model can adopt casting technique to make, and carries out machining then, and the surface of circular hole 12 should be smooth, with guarantee with Needle shaft 10 nose circle poppet surfaces between tight the cooperation.Seal ring 9 can adopt rubber or sealed nylon ring.Spring 8 is enclosed within on the Needle shaft 10, and front end withstands on the boss of Needle shaft 10 centres.Interior cover 7 utilizes the screw thread on the round platform of bottom to be installed in the valve body 2, by spring Needle shaft 10 is pressed on the circular hole 12.As shown in Figure 3, for increasing the stability of strutting system of depression bar 4 on interior cover 7, can symmetry process four to 12 grooves 13 on the interior cover 7 upper-end surface circumference, groove width should be greater than the diameter of depression bar 4, so that depression bar 4 swings in groove 13.As shown in Figure 2, depression bar 4 can be with the bearing pin pin joint in the gap of Needle shaft 10 rear ends, and upper and lower swing should be flexible, stretches out the fluting 3 of the other end from valve body 2.As shown in Figure 4, the diameter that the width of fluting 3 slightly is wider than depression bar 4 gets final product, and any one or both sides that depression bar hanging groove 14 can be arranged on fluting 3 are provided with simultaneously, and number can be decided according to required current size class, generally be advisable at two to four, its width and the degree of depth can tangle depression bar 4 and get final product.Top cover 5 can be installed in the valve body top with screw thread.

Depress depression bar 4 when discharging water, depression bar 4 is a fulcrum with interior cover 7, and Needle shaft 10 is mentioned, and water, can hang over depression bar 4 in the hanging groove 14 when discharging water for a long time from flowing out between Needle shaft 10 and the circular hole 12; During cutout cock, depression bar 4 is taken off, unclamps from hanging groove 14, Needle shaft 10 is with circular hole 12 sealings under the effect of spring 8.Except that adopting any special measures or artificially keeping the little of Needle shaft 10 to open the state, the utility model just can't resemble rotation or lift and keep the trace state that drips the formula water tap for a long time, so, fundamentally avoided dripping on a small quantity, avoiding the generation of water meter enumeration problem.

Claims (3)

1, no water clock needle-valve water tap, it comprises valve body, Needle shaft, spring, interior cover and depression bar, in valve body (2), have circular hole (12) on the tabula between water intake (11) and the water outlet (1), it is characterized in that: Needle shaft (10) is installed in the valve body (2), be provided with seal ring (9) between bottom and the valve body (2), interior cover (7) is pressed in spring (8) on the boss of Needle shaft (10), cover (7) was as supporting in depression bar (4) utilized, one end uses pin (6) pin joint on Needle shaft (10), stretch out the fluting (3) of the other end from valve body (2), top cover (5) covers on the valve body top.

2, a kind of no water clock needle-valve water tap according to claim 1 is characterized in that: have several grooves (13) on the upper-end surface circumference of interior cover (7).

3, a kind of no water clock needle-valve water tap according to claim 1 is characterized in that: have several depression bar hanging grooves (14) on the sidewall of fluting (3).

Images