阅读说明：本技术 活塞式流量可调开关阀芯 (Piston type flow-adjustable switch valve core ) 是由 虞君道 于 2018-07-19 设计创作，主要内容包括：一种活塞式流量可调开关阀芯,包括按压件、转动件、弹簧、上阀体、下阀体、上壳体、下壳体、活塞杆、密封圈、隔水套、上瓷片、下瓷片；所述按压件上有导向凸、尖齿,所述转动件下端有转动凸,所述转动凸的一端上有尖角部,所述上阀体上有内腔、导向槽、第一斜台、第二斜台；所述下阀体上有活塞腔、上通水口、下通水口,所述活塞杆上有上密封槽、中密封槽、下密封槽、通气孔、弹簧腔,其中,所述弹簧腔与所述通气孔相通,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；所述隔水套、所述上壳体上有通水槽,所述下壳体上有底通水孔；所述上瓷片上有上通水孔,所述下瓷片上有下通水孔。(piston type flow adjustable switch valve core, which comprises a pressing piece, a rotating piece, a spring, an upper valve body, a lower valve body, an upper shell, a lower shell, a piston rod, a seal ring, a water separating sleeve, an upper ceramic chip and a lower ceramic chip, wherein the pressing piece is provided with a guide convex and a sharp tooth, the lower end of the rotating piece is provided with a rotating convex, the end of the rotating convex is provided with a sharp corner, the upper valve body is provided with an inner cavity, a guide groove, a ramp and a second ramp, the lower valve body is provided with a piston cavity, an upper water through hole and a lower water through hole, the piston rod is provided with an upper seal groove, a middle seal groove, a lower seal groove, a vent hole and a spring cavity, wherein the spring cavity is communicated with the vent hole, the distance between the upper seal groove and the middle seal groove is larger than the distance between the lower ceramic chip and the middle seal groove, the water separating sleeve and the upper ceramic chip are provided with a water through hole, the upper water through hole is provided on.)

The piston type flow-adjustable switch valve element is characterized by comprising a pressing piece, a rotating piece, a spring, an upper valve body, a lower valve body, an upper shell, a lower shell, a piston rod, a sealing ring, a water separating sleeve, an upper ceramic chip and a lower ceramic chip, wherein 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, the end of the rotating protrusion is provided with a sharp corner, the upper valve body is provided with an inner cavity, a guide groove, a sloping platform and a second sloping platform, the lower valve body is provided with a piston cavity, an upper water through hole and a lower water through hole, the piston rod is provided with an upper sealing groove, a middle sealing groove, a lower sealing groove, a vent hole and a spring cavity, the spring cavity is communicated with the vent hole, and the distance between the upper sealing groove and the middle ceramic chip is larger than the distance between the lower sealing groove and the middle sealing groove;

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, and the sealing rings are arranged in the upper sealing groove, the middle sealing groove and the lower sealing groove; the piston rod is arranged below the rotating part and in the piston cavity, the upper valve body is fixed with the lower valve body, the waterproof sleeve is sleeved on the lower part of the lower valve body and fixed with the lower valve body, the upper shell is sleeved on the upper valve body, the lower ceramic chip is arranged on the lower shell and fixed with the lower shell, the upper ceramic chip is arranged on the lower ceramic chip and linked with the waterproof sleeve, and the lower shell is sleeved on the waterproof sleeve and fixed with the upper shell; wherein, the water trough is communicated with the upper water port, and the bottom water hole is communicated with the lower water hole;

the pressing piece is pressed down to enable the rotating piece to move downwards, the spring is compressed, the piston rod moves downwards, after the piston rod moves downwards for sections of 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 sloping platform;

pressing the pressing piece again to enable the rotating piece to continue moving downwards, after moving downwards for sections of distance, the rotating piece rotates again under the action of the sharp teeth, the spring and the sharp corner part, the sharp corner part rotates to the guide groove along the second sloping platform, the rotating projection slides back into the guide groove, the spring extends, the piston rod moves upwards, the sealing ring in the middle sealing groove moves to the upper part of the lower water through opening and the lower part of the upper water through opening, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water through opening, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water through opening, the upper water through opening is separated from the lower water through opening, and the water through groove is separated from the bottom water through hole;

the pressing piece is rotated to rotate the upper valve body, the upper valve body drives the lower valve body, the water separating sleeve and the upper ceramic piece to rotate, the upper ceramic piece rotates relative to the lower ceramic piece, the upper water through hole rotates relative to the lower water through hole, and the flow can be adjusted by adjusting the relative opening degree of the upper water through hole and the lower water through hole.

Technical Field

The invention belongs to the technical field of faucets, and particularly relates to piston type flow-adjustable switch valve cores loaded in faucets.

Background

The 201620427523.9 tap valve core can be normally used under the condition that the water inlet pressure is about 3 kilograms, but under the condition that the drift diameter of a water inlet on the side surface is larger than that of a water outlet at the bottom, particularly when the water inlet pressure is more than 5 kilograms or even higher, the hand feeling of pressing down is very heavy, the switching can not be realized, and the valve core fails;

the valve core of the water tap of patent No. 201620427523.9 can only be used as a switch under low pressure, and can not adjust the flow.

Disclosure of Invention

The invention aims to provide piston type flow-adjustable switch valve cores which have light hand feeling, do not influence the use of water pressure, and can be used for adjusting the flow rate while the water inlet and the water outlet can be interchanged.

In order to achieve the purpose, the invention provides a piston type flow-adjustable switch valve core which is characterized by comprising a pressing piece, a rotating piece, a spring, an upper valve body, a lower valve body, an upper shell, a lower shell, a piston rod, a sealing ring, a water separating sleeve, an upper ceramic sheet and a lower ceramic sheet, wherein 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, the end of the rotating protrusion is provided with a sharp corner, the upper valve body is provided with an inner cavity, a guide groove, a ramp and a second ramp, the lower valve body is provided with a piston cavity, an upper water through hole and a lower water through hole, the piston rod is provided with an upper sealing groove, a middle sealing groove, a lower sealing groove, a vent hole and a spring cavity, the spring cavity is communicated with the vent hole, the distance between the upper ceramic sheet and the middle sealing groove is larger than the distance between the lower sealing groove and the middle sealing groove;

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, and the sealing rings are arranged in the upper sealing groove, the middle sealing groove and the lower sealing groove; the piston rod is arranged below the rotating part and in the piston cavity, the upper valve body is fixed with the lower valve body, the waterproof sleeve is sleeved on the lower part of the lower valve body and fixed with the lower valve body, the upper shell is sleeved on the upper valve body, the lower ceramic chip is arranged on the lower shell and fixed with the lower shell, the upper ceramic chip is arranged on the lower ceramic chip and linked with the waterproof sleeve, and the lower shell is sleeved on the waterproof sleeve and fixed with the upper shell; wherein, the water trough is communicated with the upper water port, and the bottom water hole is communicated with the lower water hole;

the pressing piece is pressed down to enable the rotating piece to move downwards, the spring is compressed, the piston rod moves downwards, after the piston rod moves downwards for sections of 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 sloping platform;

pressing the pressing piece again to enable the rotating piece to continue moving downwards, after moving downwards for sections of distance, the rotating piece rotates again under the action of the sharp teeth, the spring and the sharp corner part, the sharp corner part rotates to the guide groove along the second sloping platform, the rotating projection slides back into the guide groove, the spring extends, the piston rod moves upwards, the sealing ring in the middle sealing groove moves to the upper part of the lower water through opening and the lower part of the upper water through opening, the sealing ring in the upper sealing groove is arranged at the upper part of the upper water through opening, the sealing ring in the lower sealing groove is arranged at the lower part of the lower water through opening, the upper water through opening is separated from the lower water through opening, and the water through groove is separated from the bottom water through hole;

the pressing piece is rotated to rotate the upper valve body, the upper valve body drives the lower valve body, the water separating sleeve and the upper ceramic piece to rotate, the upper ceramic piece rotates relative to the lower ceramic piece, the upper water through hole rotates relative to the lower water through hole, and the flow can be adjusted by adjusting the relative opening degree of the upper water through hole and the lower water through hole.

The invention has the beneficial effects that: simple structure, convenient manufacture, light hand feeling, adjustable flow and no influence on 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 schematic view of the upper housing of the present invention.

Fig. 9 is a schematic view of the lower housing of the present invention.

Figure 10 is a schematic view of an upper ceramic tile in accordance with the present invention.

Figure 11 is a schematic view of a lower tile of the present invention.

Fig. 12 is a cross-sectional view of the th state of the invention.

Fig. 13 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 rotating member 4 has a rotating protrusion 5 at a lower end thereof, and a sharp corner 6 is formed at an end of the rotating protrusion 5;

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

referring to fig. 4, the water-separating jacket 12 is provided with a water passing groove 15;

referring to fig. 5 and 6, the lower valve body 13 is provided with a piston cavity 14, an upper water passage port 16 and a lower water passage port 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. 8, the upper case 26 has a water passage groove 15;

referring to fig. 9, the lower case 27 has a bottom water passage hole 28;

referring to FIG. 10, the upper ceramic sheet 29 has an upper water passage hole 30;

referring to FIG. 11, the lower tile 31 has a lower water hole 32;

referring to fig. 1 to 13, 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 and is fixed with the lower valve body 13; the upper shell 26 is sleeved on the upper valve body 7, the lower ceramic tile 31 is arranged on the lower shell 27 and fixed with the lower shell 27, the upper ceramic tile 29 is arranged on the lower ceramic tile 31 and linked with the water-resisting sleeve 12, and the lower shell 27 is sleeved on the water-resisting sleeve 12 and fixed with the upper shell 26; wherein, the water trough 15 is communicated with the upper water through hole 16, and the bottom water through hole 28 is communicated with the lower water through hole 32;

pressing the pressing part 1 downwards to move the rotating part 4 downwards, the spring 24 compresses, the piston rod 18 moves downwards, and after moving sections of distance downwards, the rotating part 4 rotates under the action of the sharp teeth 3, the spring 24 and the sharp corners 6, the rotating projection 5 slides out of the guide groove 9, the sharp corners 6 rotate to the bottom of the sloping platform 10, the sealing ring 25 in the middle sealing groove 20 moves downwards to the lower part of the lower water through hole 17, the sealing ring 25 in the upper sealing groove 19 is arranged at the upper part of the upper water through hole 16, the sealing ring 25 in the lower sealing groove 21 is arranged at the lower part of the lower water through hole 17, the upper water through hole 16 is communicated with the lower water through hole 17, and the water through groove 15 is communicated with the bottom water through hole;

pressing the pressing piece 1 again to make the rotating piece 4 move downwards continuously, after moving downwards for sections, the rotating piece 4 rotates again under the action of the sharp teeth 3, the spring 24 and the sharp corner part 6, the sharp corner part 6 rotates to the guide groove 9 along the second sloping platform 11, the rotating projection 5 slides back to the guide groove 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 lower water through hole 17 and the lower part of the upper water through hole 16, the sealing ring 25 in the upper sealing groove 19 is arranged at the upper part of the upper water through hole 16, the sealing ring 25 in the lower sealing groove 21 is arranged at the lower part of the lower water through hole 17, the upper water through hole 16 is blocked from the lower water through hole 17, and the water through groove 15 is blocked from the bottom water through;

the pressing member 1 is rotated to rotate the upper valve body 7, the upper valve body 7 drives the lower valve body 13, the water separating sleeve 12 and the upper ceramic piece 29 to rotate, the upper ceramic piece 29 rotates relative to the lower ceramic piece 31, the upper water through hole 30 rotates relative to the lower water through hole 32, and the flow rate can be adjusted by adjusting the relative opening degree of the upper water through hole 30 and the lower water through hole 32.

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 through hole 17, the upward pressure and the downward pressure of the water pressure on the piston rod 18 are always -like large, and the directions of the upward pressure and the downward pressure are opposite and are just mutually offset, the hand feeling of pressing down cannot be influenced no matter how much the water pressure is, which is the essential difference between the invention and the water tap valve core of patent No. 201620427523.9 ;

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 in the bottom of the lower valve body 13.