阅读说明：本技术 活塞式分水阀芯 (Piston type water diversion valve core ) 是由 虞君道 于 2018-06-29 设计创作，主要内容包括：一种活塞式分水阀芯,包括下阀体、活塞杆、密封圈；所述下阀体上有活塞腔、进水口、上出水口、下出水口,其中,所述进水口在所述上出水口与所述下出水口之间；所述活塞杆上有上密封槽、中密封槽、下密封槽；其中,所述上密封槽与所述中密封槽之间的距离大于所述下密封槽与所述中密封槽之间的距离；所述上密封槽、所述中密封槽、所述下密封槽中有所述密封圈,所述活塞杆在所述活塞腔中。(A piston type water diversion valve core comprises a lower valve body, a piston rod and a sealing ring; the lower valve body is provided with a piston cavity, a water inlet, an upper water outlet and a lower water outlet, wherein the water inlet is arranged between the upper water outlet and the lower water outlet; the piston rod is provided with an upper sealing groove, a middle sealing groove and a lower sealing groove; wherein a distance between the upper seal groove and the middle seal groove is greater than a distance between the lower seal groove and the middle seal groove; the upper sealing groove, the middle sealing groove and the lower sealing groove are internally provided with the sealing rings, and the piston rod is arranged in the piston cavity.)

1. The utility model provides a piston case that divides which characterized in that: comprises a lower valve body, a piston rod and a sealing ring; the lower valve body is provided with a piston cavity, a water inlet, an upper water outlet and a lower water outlet, wherein the water inlet is arranged between the upper water outlet and the lower water outlet; the piston rod is provided with an upper sealing groove, a middle sealing groove and a lower sealing groove; wherein a distance between the upper seal groove and the middle seal groove is greater than a distance between the lower seal groove and the middle seal groove;

the upper sealing groove, the middle sealing groove and the lower sealing groove are internally provided with the sealing rings, and the piston rod is arranged in the piston cavity;

the piston rod moves downwards, the sealing ring in the middle sealing groove moves downwards to the lower part of the water inlet, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water outlet, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water outlet, the lower water outlet is closed, the water inlet is communicated with the upper water outlet, and the upper water outlet is opened;

the piston rod moves upwards, the sealing ring in the middle sealing groove moves upwards to the upper part of the water inlet, the sealing ring in the upper sealing groove is arranged on the upper part of the upper water outlet, the sealing ring in the lower sealing groove is arranged on the lower part of the lower water outlet, the upper water outlet is closed, the water inlet is communicated with the lower water outlet, and the lower water outlet is opened.

2. The piston-type water diversion valve cartridge of claim 1 wherein: the water-resisting sleeve is sleeved on the lower part of the lower valve body; the piston rod is provided with a vent hole.

3. The piston-type water diversion valve cartridge of claim 1 or 2 wherein: the valve also comprises a pressing piece, a rotating piece, a spring and an upper valve body; the pressing piece is provided with a guide protrusion and a sharp tooth, the lower end of the rotating piece is provided with a rotating protrusion, one end of the rotating protrusion is provided with a sharp corner, and the upper valve body is provided with an inner cavity, a guide groove, a first inclined table and a second inclined table; an upper spring cavity is formed in the piston rod, and the spring cavity is communicated with the vent hole;

the pressing piece is arranged in the inner cavity, the upper end of the pressing piece extends out of the inner cavity, the guide protrusion is arranged in the guide groove, the rotating piece is arranged below the pressing piece, the spring is arranged in the spring cavity, the piston rod is arranged below the rotating piece, and the upper valve body and the lower valve body are fixed;

pressing the pressing piece downwards to enable the rotating piece to move downwards, the spring is compressed, the piston rod moves downwards, after the piston rod moves downwards for a certain distance, the rotating piece rotates under the action of the sharp teeth, the spring and the sharp corner, the rotating projection slides out of the guide groove, and the sharp corner rotates to the bottom of the first inclined table; the sealing ring in the middle sealing groove moves downwards to the lower part of the water inlet, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water outlet, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water outlet, the lower water outlet is closed, the water inlet is communicated with the upper water outlet, and the upper water outlet is opened;

press down again the pressing piece makes it continues to move down to rotate, after moving down a distance, because sharp tooth the spring, the effect at sharp bight the rotation piece takes place to rotate once more, sharp bight along the second sloping platform rotates to the guide way, it slides back to rotate protruding in the guide way, the spring extends, the piston rod shifts up, in the well seal groove move up on the seal ring the upper portion of water inlet, go up in the seal groove the seal ring is in the upper portion of last delivery port, in the lower seal groove the seal ring is in the lower part of delivery port down, go up the delivery port and close, the water inlet with delivery port UNICOM down, the delivery port is opened down.

Technical Field

The invention belongs to the technical field of water faucets, and particularly relates to a piston type water distribution valve core loaded in a water faucet.

Background

Patent No. 201520024541.8 a button two minute water valve core and patent No. 201620428551.2 tap minute water valve core can both normal use under the condition about 3 kilograms of water pressure of intaking, but water pressure of intaking sometimes can be more than 5 kilograms, and is even higher, can normally use in order can be at high water pressure product, just can only strengthen the intensity of spring, just so led to pressing down feel very heavy, but still can not switch if water pressure is higher, lead to the case malfunctioning.

Disclosure of Invention

The invention aims to provide a piston type water diversion valve core which is light in hand feeling and does not influence the use of the water pressure.

In order to achieve the purpose, the invention provides a piston type water diversion valve core, which is characterized in that: comprises a lower valve body, a piston rod and a sealing ring; the lower valve body is provided with a piston cavity, a water inlet, an upper water outlet and a lower water outlet, wherein the water inlet is arranged between the upper water outlet and the lower water outlet; the piston rod is provided with an upper sealing groove, a middle sealing groove and a lower sealing groove; wherein a distance between the upper seal groove and the middle seal groove is greater than a distance between the lower seal groove and the middle seal groove;

the upper sealing groove, the middle sealing groove and the lower sealing groove are internally provided with the sealing rings, and the piston rod is arranged in the piston cavity;

the piston rod moves downwards, the sealing ring in the middle sealing groove moves downwards to the lower part of the water inlet, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water outlet, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water outlet, the lower water outlet is closed, the water inlet is communicated with the upper water outlet, and the upper water outlet is opened;

the piston rod moves upwards, the sealing ring in the middle sealing groove moves to the upper part of the water inlet, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water outlet, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water outlet, the upper water outlet is closed, the water inlet is communicated with the lower water outlet, and the lower water outlet is opened;

as the improvement of the piston type water diversion valve core, the invention is further characterized in that: the water-resisting sleeve is sleeved on the lower part of the lower valve body; the piston rod is provided with a vent hole;

as the improvement of the piston type water diversion valve core, the invention is further characterized in that: the valve also comprises a pressing piece, a rotating piece, a spring and an upper valve body; the pressing piece is provided with a guide protrusion and a sharp tooth, the lower end of the rotating piece is provided with a rotating protrusion, one end of the rotating protrusion is provided with a sharp corner, and the upper valve body is provided with an inner cavity, a guide groove, a first inclined table and a second inclined table; an upper spring cavity is formed in the piston rod, and the spring cavity is communicated with the vent hole;

the pressing piece is arranged in the inner cavity, the upper end of the pressing piece extends out of the inner cavity, the guide protrusion is arranged in the guide groove, the rotating piece is arranged below the pressing piece, the spring is arranged in the spring cavity, the piston rod is arranged below the rotating piece, and the upper valve body and the lower valve body are fixed;

pressing the pressing piece downwards to enable the rotating piece to move downwards, the spring is compressed, the piston rod moves downwards, after the piston rod moves downwards for a certain distance, the rotating piece rotates under the action of the sharp teeth, the spring and the sharp corner, the rotating projection slides out of the guide groove, and the sharp corner rotates to the bottom of the first inclined table; the sealing ring in the middle sealing groove moves downwards to the lower part of the water inlet, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water outlet, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water outlet, the lower water outlet is closed, the water inlet is communicated with the upper water outlet, and the upper water outlet is opened;

press down again the pressing piece makes it continues to move down to rotate, after moving down a distance, because sharp tooth the spring, the effect at sharp bight the rotation piece takes place to rotate once more, sharp bight along the second sloping platform rotates to the guide way, it slides back to rotate protruding in the guide way, the spring extends, the piston rod shifts up, in the well seal groove move up on the seal ring the upper portion of water inlet, go up in the seal groove the seal ring is in the upper portion of last delivery port, in the lower seal groove the seal ring is in the lower part of delivery port down, go up the delivery port and close, the water inlet with delivery port UNICOM down, the delivery port is opened down.

The invention has the beneficial effects that: simple structure, convenient manufacture, light hand feeling, and no influence on the use due to the water pressure.

Drawings

Fig. 1 is a schematic view of a press according to the present invention.

Figure 2 is a schematic view of a rotating member of the present invention.

Fig. 3 is a schematic view of the upper valve body of the present invention.

Fig. 4 is a schematic view of the water shut-off jacket of the present invention.

Fig. 5 is a schematic view of the lower valve body of the present invention.

FIG. 6 is a schematic cross-sectional view of the lower valve body of the present invention.

Fig. 7 is a schematic view of a piston rod of the present invention.

Fig. 8 is a cross-sectional view of the first state of the invention.

Fig. 9 is a cross-sectional view of the second state of the invention.

Detailed Description

Referring to fig. 1, a guide protrusion 2 and a sharp tooth 3 are provided on a pressing member 1;

referring to fig. 2, the lower end of the rotation member 4 is provided with a rotation protrusion 5, and one end of the rotation protrusion 5 is provided with a sharp corner portion 6;

referring to fig. 3, the upper valve body 7 is provided with an inner cavity 8, a guide groove 9, a first inclined platform 10 and a second inclined platform 11;

referring to fig. 5 and 6, the lower valve body 13 is provided with a piston cavity 14, a water inlet 15, an upper water outlet 16 and a lower water outlet 17, wherein the water inlet 15 is arranged between the upper water outlet 16 and the lower water outlet 17;

referring to fig. 7, the piston rod 18 is provided with an upper seal groove 19, a middle seal groove 20, a lower seal groove 21, a spring cavity 22 and a vent hole 23, wherein the spring cavity 22 is communicated with the vent hole 23; the distance between the upper sealing groove 19 and the middle sealing groove 20 is greater than the distance between the lower sealing groove 21 and the middle sealing groove 20;

referring to fig. 1 to 9, the pressing member 1 is in the inner cavity 8, the upper end of the pressing member extends out of the inner cavity 8, the guide protrusion 2 is in the guide groove 9, the rotating member 4 is below the pressing member 1, the spring 24 is in the spring cavity 22, the piston rod 18 is below the rotating member 4, the upper seal groove 19, the middle seal groove 20 and the lower seal groove 21 are provided with the seal rings 25, and the piston rod 18 is in the piston cavity 14; the upper valve body 7 is fixed with the lower valve body 13, and the water-stop sleeve 12 is sleeved on the lower part of the lower valve body 13;

the pressing piece 1 is pressed down to enable the rotating piece 4 to move downwards, the spring 24 is compressed, the piston rod 18 moves downwards, after moving downwards for a certain distance, the rotating piece 4 rotates under the action of the sharp teeth 3, the spring 24 and the sharp corner 6, the rotating protrusion 5 slides out of the guide groove 9, and the sharp corner 6 rotates to the bottom of the first inclined table 10; the sealing ring 25 in the middle sealing groove 20 moves downwards to the lower part of the water inlet 15, the sealing ring 25 in the upper sealing groove 19 is arranged at the upper part of the upper water outlet 16, the sealing ring 25 in the lower sealing groove 21 is arranged at the lower part of the lower water outlet 17, the lower water outlet 17 is closed, the water inlet 15 is communicated with the upper water outlet 16, and the upper water outlet 16 is opened, as shown in fig. 8;

pressing the pressing piece 1 again to make the rotating piece 4 continue to move downwards, after moving downwards for a certain distance, the rotating piece 4 rotates again under the action of the sharp teeth 3, the spring 24 and the sharp corners 6, the sharp corners 6 rotate to the guide grooves 9 along the second sloping platform 11, the rotating protrusions 5 slide back into the guide grooves 9, the spring 24 extends, the piston rod 18 moves upwards, the sealing ring 25 in the middle sealing groove 20 moves upwards to the upper part of the water inlet 15, the sealing ring 25 in the upper sealing groove 19 is arranged at the upper part of the upper water outlet 16, the sealing ring 25 in the lower sealing groove 21 is arranged at the lower part of the lower water outlet 17, the upper water outlet 16 is closed, the water inlet 15 is communicated with the lower water outlet 17, and the lower water outlet 17 is opened;

in the invention, because the sealing ring 25 in the lower sealing groove 21 is arranged and is always arranged at the lower part of the lower water outlet 17, the upward pressure and the downward pressure of the water pressure on the piston rod 18 are always the same as each other, and the directions of the upward pressure and the downward pressure are opposite and just offset with each other, the hand feeling of pressing down can not be influenced no matter how much the water pressure is; the essential difference between the invention and the tap water-dividing valve core of the push button type of 201520024541.8 and the tap water-dividing valve core of the patent number of 201620428551.2 is also true;

in the present invention, the vent hole 23 is used for the ingress and egress of air between the piston rod 18 and the lower valve body 13 upon the up-and-down movement of the piston rod 18; the same effect can be achieved by drilling a hole at the bottom of the lower valve body 13;

in the invention, mainly the water diversion structure of the valve core is introduced, and how to control the up-and-down movement of the piston rod 18 in the invention only introduces the existing bouncing structure of the ball pen, and actually the bouncing structure of the washbasin drainer and the like, and the description is omitted, and all changes of the ball pen bouncing structure introduced in the invention but the change of the water diversion structure of the valve core of the invention are the protection range of the invention;

in the invention, if the up-and-down movement of the piston rod 18 is controlled by a ball-point pen bouncing structure, only one valve core water diversion structure is adopted, and the up-and-down movement of the piston rod 18 is controlled by hands, which is also a complete invention, and is only more perfect after the bouncing structure is adopted.