CN210344355U

CN210344355U - On-off valve

Info

Publication number: CN210344355U
Application number: CN201921315661.8U
Authority: CN
Inventors: 张伟; 林法青; 陈申建
Original assignee: Taizhou Zhouhao Valve Technology Co ltd
Current assignee: Taizhou Zhouhao Valve Technology Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-17
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses an on-off valve, which comprises a valve body, an inner cavity arranged on the valve body, a water inlet and a water outlet communicated with the inner cavity, wherein a channel pipe which is communicated with the inner cavity and is obliquely arranged is arranged on the valve body; the inner side of the bottom port of the channel pipe is provided with a step, and the top end of the channel pipe is closed by a valve cover; a fixed valve plate is fixed on the step, a movable valve plate is superposed on the fixed valve plate, and a valve rod is arranged in the channel pipe; the bottom end of the valve rod is fixedly positioned with the movable valve plate, and the top end of the valve rod penetrates through the through hole of the valve cover; a positioning convex ring is fixed on the side wall of the middle part of the valve rod, and the top side of the positioning convex ring is contacted and attached with the bottom side of the end cover; the fixed valve plate is provided with at least one valve hole I, and the movable valve plate is provided with at least one valve hole II corresponding to the valve hole I. Make the on-off control of valve comparatively swift sensitive, promote life.

Description

On-off valve

Technical Field

The utility model belongs to the technical field of a valve technique and specifically relates to an on-off valve.

Background

In the prior art, most of the liquid or water flow on-off control devices generally adopt a stop valve and a filter valve, wherein the filter valve only plays a role in filtering and does not play a role in on-off; the stop valve controls the opening and closing of the valve by using a working principle that the rotary screw drives the valve rod to move up and down so as to control the on-off of fluid, the on-off control time of the operation of the stop valve on the valve is longer, so that the stop valve is not quick and sensitive to use, and is not easy to age and necrotize if the stop valve is not used for a long time (particularly under the condition that the connecting part of the external thread and the internal thread of the screw is corroded or rusted).

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough and design of above-mentioned technique make the on-off control of valve comparatively swift sensitive, promote life's on-off valve.

The on-off valve designed by the utility model comprises a valve body, an inner cavity arranged on the valve body, and a water inlet and a water outlet which are communicated with the inner cavity, wherein the valve body is provided with a channel pipe which is communicated with the inner cavity and is obliquely arranged; the inner side of the bottom port of the channel pipe is provided with a step, and the top end of the channel pipe is closed by a valve cover; a fixed valve plate is arranged on the step, a movable valve plate is superposed on the fixed valve plate, and a valve rod is arranged in the channel pipe; the bottom end of the valve rod is fixedly positioned with the movable valve plate, and the top end of the valve rod penetrates through the through hole of the valve cover; a positioning convex ring is fixed on the side wall of the middle part of the valve rod, and the top side of the positioning convex ring is contacted and attached with the bottom side of the end cover; the fixed valve plate is provided with at least one valve hole I, and the movable valve plate is provided with at least one valve hole II corresponding to the valve hole I.

Further preferably, a branch pipe communicated with the inner cavity is arranged on the valve body, and a temperature sensor is arranged at the branch pipe.

Further preferably, still include the spring, the bottom lateral wall arch of valve rod has the ring piece, and location bulge loop and spring all overlap on the valve rod, and the both ends of spring are contradicted with ring piece and location bulge loop respectively.

Further preferably, still include the position sleeve, the position sleeve overlaps on the valve rod, and the spring housing is on the position sleeve, and the bottom lateral wall of position sleeve has the ring body, and the bulge loop is fixed a position respectively at the both ends of spring and the ring body is contradicted.

Preferably, the bottom end of the valve rod is provided with a positioning head, the bottom surface of the positioning head is provided with a square positioning block, and the square positioning block is inserted into a square positioning groove in the movable valve plate.

Preferably, the first valve hole and the second valve hole are fan-shaped valve holes.

Preferably, the second valve hole is a fishtail-shaped arc-shaped valve hole, and the sectional area of one end part of the arc-shaped valve hole is larger than that of the other end part.

Further preferably, the first valve hole and the second valve hole are both provided in two.

Further preferably, the side wall of the fixed valve plate is provided with a plurality of protrusions, the inner side wall of the bottom end of the channel pipe is provided with a plurality of recesses corresponding to the positions of the protrusions, the recesses are close to the upper surface of the step, the fixed valve plate is erected on the upper surface of the step, and the protrusions are correspondingly inserted into the recesses.

Preferably, the fixed valve plate and the movable valve plate are both ceramic valve plates.

Further preferably, the through holes between the valve rod and the valve cover, the step and the fixed valve plate, and the peripheral side wall of the valve cover and the inner side wall of the port at the top end of the channel pipe are sealed by sealing rings.

Further preferably, the channel tube is obliquely disposed at an angle of 45 degrees.

The on-off valve designed by the utility model has the structure that the valve rod rotates to drive the movable valve plate to rotate on the fixed valve plate, so that the first valve hole and the second valve hole are correspondingly communicated with each other or the two valve plates respectively cover the two valve holes to realize the communication or disconnection between the water inlet and the water outlet, thereby achieving the relatively convenient, rapid and sensitive on-off control; and the flow can be controlled according to the size degree of a water outlet channel formed by the mutual correspondence of the first valve hole and the second valve hole by the rotation of the movable valve plate, so that the flow regulation is more reliable.

Drawings

FIG. 1 is the whole structure diagram of embodiment 1;

FIG. 2 is a schematic structural view of both the first valve hole and the second valve hole of embodiment 1;

FIG. 3 is the whole structure diagram of embodiment 1 (II);

FIG. 4 is a schematic view showing a fully open state of the valve hole in embodiment 2;

FIG. 5 is a schematic view showing the valve hole of embodiment 2 in an adjusted state;

fig. 6 is a schematic view showing a closed state of the valve hole of embodiment 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to fig. 3, the on-off valve described in this embodiment includes a valve body 1, an inner cavity 11 disposed on the valve body 1, and a water inlet 12 and a water outlet 13 communicated with the inner cavity 11, wherein a passage tube 14 communicated with the inner cavity 11 and disposed obliquely is disposed on the valve body 1; the inside of the bottom port of the passage tube 14 has a step 141, the top end of which is closed by a valve cover 8; a fixed valve plate 6 is arranged on the step 141, a movable valve plate 7 is superposed on the fixed valve plate 6, and a valve rod 2 is arranged in the channel pipe 14; the bottom end of the valve rod 2 is fixedly positioned with the movable valve plate 6, and the top end of the valve rod penetrates through a through hole of the valve cover 8; a positioning convex ring 3 is fixed on the side wall of the middle part of the valve rod 2, and the top side of the positioning convex ring 3 is contacted and attached with the bottom side of the end cover 8; the fixed valve plate 6 is provided with at least one first valve hole 61, and the movable valve plate 7 is provided with at least one second valve hole 71 corresponding to the first valve hole 61. The channel pipe is obliquely arranged in the middle of the valve body so as to facilitate the on-off and flow regulation control of the fluid. The top end of the valve rod can be connected with a hand wheel controlled manually or a motor or a speed reducer controlled electrically.

The working principle of the structure is as follows: the valve rod is rotated to drive the movable valve plate to rotate, so that the movable valve plate rotates the valve hole II to be correspondingly communicated with the valve hole, the water inlet is communicated with the water outlet, and the position of the valve hole II can be rotationally adjusted to realize the function of controlling the flow by the size degree of a water outlet channel formed by the mutual correspondence of the valve hole I and the valve hole II; when the movable valve plate rotates to enable the two valve plates to cover the two valve holes respectively; thereby the water inlet and the water outlet are cut off.

In this embodiment, the valve body 1 is provided with a branch pipe 15 communicated with the inner cavity 11, and the branch pipe 15 is provided with a temperature sensor 9. The temperature of the fluid in the lumen is detected.

In this embodiment, still include spring 4, the bottom lateral wall arch of valve rod 2 has ring piece 21, and location bulge loop 3 and spring 4 all overlap on valve rod 2, and spring 4's both ends are contradicted with ring piece 21 and location bulge loop 3 respectively. The ring piece, the movable valve plate and the fixed valve plate are all designed by prepressing the spring valve rod, so that the ring piece, the movable valve plate and the fixed valve plate are firm and reliable, and are more portable during movement.

In this embodiment, still include position sleeve 5, position sleeve 5 overlaps on valve rod 2, and spring 4 overlaps on position sleeve 5, and the bottom lateral wall of position sleeve 5 has ring body 51, and the protruding ring 3 of the both ends difference location of spring 4 contradicts with ring body 51. The structure of the elastic positioning device can position the elasticity, so that the structure is more compact and reliable.

In this embodiment, the bottom end of the valve rod 2 has a positioning head 22, the bottom surface of the positioning head 22 has a square positioning block 221, and the square positioning block 221 is inserted into the square positioning groove 72 on the movable valve plate 7. The structure is convenient for assembly and reliable in positioning.

In this embodiment, the first valve hole 61 and the second valve hole 71 are both sector valve holes. When the fan-shaped valve holes are adopted, the on-off action of fluid entering the inner cavity is mainly carried out, but the flow can be controlled according to the size degree of a water outlet channel formed by the mutual correspondence of the two fan-shaped valve holes by the rotation of the movable valve plate. The two valve holes are communicated with the water outlet to discharge water, and the two valve holes are respectively covered by the two valve plates to stop discharging water.

In this embodiment, the first valve hole 61 and the second valve hole 71 are provided in two. In order to make the flow regulation and/or the on-off operation of the valve more effective.

In this embodiment, the fixed valve plate 6 and the movable valve plate 7 are both ceramic valve plates. The ceramic valve plate has small friction coefficient, hard surface hardness like diamond, long service life, difficult damage, reduced user loss and the like.

In this embodiment, the sealing rings 10 are used for sealing between the valve rod 2 and the through hole of the valve cover 8, between the step 141 and the fixed valve plate 6, and between the peripheral side wall of the valve cover 8 and the inner side wall of the port at the top end of the channel pipe 14. The sealing ring prevents liquid leakage when in use.

In this embodiment, the passage tube 14 is obliquely disposed at an angle of 45 degrees. The channel pipe is designed by adopting a 45-degree inclined structure, so that the pressure loss of fluid is minimized, and the fluid flow resistance curve is flat.

In this embodiment, the side wall of the fixed valve plate 6 has a plurality of protrusions 62, and the inner side wall of the bottom end of the channel tube 14 has a plurality of recesses 142 corresponding to the positions of the protrusions 62, the recesses 142 are close to the upper surface of the step 141, the fixed valve plate 6 is erected on the upper surface of the step 141, and the protrusions 62 are correspondingly inserted into the recesses 142, so as to fix the fixed valve plate.

Example 2:

as shown in fig. 4 to 6, the on-off valve described in the present embodiment has a general structure similar to that of embodiment 1, but differs from embodiment 1 in that: in this embodiment, the second valve hole 72 is a fishtail-shaped arc-shaped valve hole, and the sectional area of one end of the arc-shaped valve hole is larger than that of the other end. The flow is controlled according to the size degree of a water outlet channel formed by the arc-shaped valve hole and the valve hole which are mutually corresponding to each other through the rotation of the movable valve plate, the flow can also be used for switching on and off the fluid entering the inner cavity, the two valve holes are communicated with the water outlet to discharge water, and the two valve holes are respectively covered by the two valve plates to stop discharging water. And the arc valve hole can adjust the water flow from the process of full opening to closing under the condition that the movable valve plate is driven to rotate between 0 and 90 degrees.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. The on-off valve comprises a valve body, an inner cavity arranged on the valve body, and a water inlet and a water outlet communicated with the inner cavity, and is characterized in that a channel pipe which is communicated with the inner cavity and is obliquely arranged is arranged on the valve body; the inner side of the bottom port of the channel pipe is provided with a step, and the top end of the channel pipe is closed by a valve cover; a fixed valve plate is fixed on the step, a movable valve plate is superposed on the fixed valve plate, and a valve rod is arranged in the channel pipe; the bottom end of the valve rod is fixedly positioned with the movable valve plate, and the top end of the valve rod penetrates through the through hole of the valve cover; a positioning convex ring is fixed on the side wall of the middle part of the valve rod, and the top side of the positioning convex ring is contacted and attached with the bottom side of the end cover; the fixed valve plate is provided with at least one valve hole I, and the movable valve plate is provided with at least one valve hole II corresponding to the valve hole I.

2. The on-off valve of claim 1, wherein the valve body is provided with a branch pipe communicated with the inner cavity, and a temperature sensor is mounted at the branch pipe.

3. The on-off valve of claim 1, further comprising a spring, wherein a ring plate protrudes from the bottom side wall of the valve stem, the positioning convex ring and the spring are both sleeved on the valve stem, and two ends of the spring respectively abut against the ring plate and the positioning convex ring.

4. The on-off valve of claim 3, further comprising a positioning sleeve, wherein the positioning sleeve is sleeved on the valve rod, the spring is sleeved on the positioning sleeve, the side wall of the bottom end of the positioning sleeve is provided with a ring body, and two ends of the spring are respectively abutted against the positioning convex ring and the ring body.

5. The on-off valve of claim 1, wherein the bottom end of the valve stem has a positioning head, and the bottom surface of the positioning head has a square positioning block inserted into a square positioning groove on the movable valve plate.

6. The on-off valve of claim 1, wherein the first valve bore and the second valve bore are both sector valve bores.

7. The on-off valve of claim 1, wherein the second valve hole is a fishtail-shaped arc-shaped valve hole, and the sectional area of one end of the arc-shaped valve hole is larger than that of the other end.

8. The on-off valve of claim 1, wherein the side wall of the stationary blade has a plurality of protrusions, and the inner side wall of the bottom end of the passage tube has a plurality of recesses corresponding to the positions of the protrusions, the recesses being located close to the upper surface of the step, the stationary blade being erected on the upper surface of the step, and the protrusions being inserted into the recesses.

9. The on-off valve of claim 1 or 5, wherein the fixed and movable flaps are ceramic flaps.

10. The on-off valve of claim 1, wherein the passage tube is disposed at an angle of 45 degrees.