CN215568144U - Rotary valve - Google Patents

Abstract

The utility model discloses a rotary valve, comprising: the valve body is provided with a valve cavity, and the valve cavity is provided with a first surface; the switching piece is rotatably connected to the valve body around a rotating shaft perpendicular to the first surface so as to switch the water outlet function of the valve body, and is provided with a second surface which is positioned in the valve cavity and is opposite to the first surface; and a plurality of balls; ball grooves with the same number as the balls are uniformly distributed on one of the first surface and the second surface in the circumferential direction around the rotating shaft; the balls are accommodated in the ball grooves in a one-to-one correspondence manner and are propped against the first surface or the second surface opposite to the ball grooves; the ball groove is configured and adapted to restrict movement of the ball received therein relative to the switch. According to the rotary valve provided by the utility model, the ball is arranged between the valve body and the switching piece, so that the friction force between the valve body and the switching piece is greatly reduced.

Description

Rotary valve

Technical Field

The utility model relates to the technical field of valve cores, in particular to a rotary valve.

Background

The rotary valve can generally be regarded as diverter valve or open and close valve through the water route design, and its major structure includes the valve casing, rotates the piece, moves ceramic chip and quiet ceramic chip, rotates the piece and moves the ceramic chip and only changes the cooperation and can rotate relative to the valve casing, and quiet ceramic chip is fixed in valve casing bottom position, and the user rotates relative to the valve casing through the control, can control to move the relative quiet ceramic chip of ceramic chip and rotate to the switching moves the intercommunication state of crossing the mouth of a river on ceramic chip and the quiet ceramic chip, reaches the purpose of switching water diversion or opening and close water. Wherein, because the spacing of the piece that rotates the ascending direction of its axial is realized through the spacing face cooperation that corresponds on the flange column structure that is located its periphery and the valve casing generally, the spacing of the ascending direction of axial is supported by quiet ceramic chip top and is moved the ceramic chip and realize, wherein the spacing of the direction of up makes and forms great contact surface between piece and the valve casing rotating, leads to the two to have great frictional force when rotating the piece, has reduced user's operation and has felt.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to overcome the above-mentioned drawbacks or problems of the related art and to provide a rotary valve in which friction between a valve body and a switching member is greatly reduced by providing balls between the valve body and the switching member.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a rotary valve comprising: the valve body is provided with a valve cavity, and the valve cavity is provided with a first surface; the switching piece is rotatably connected to the valve body around a rotating shaft perpendicular to the first surface so as to switch the water outlet function of the valve body, and is provided with a second surface which is positioned in the valve cavity and is opposite to the first surface; and a plurality of balls; ball grooves with the same number as the balls are uniformly distributed on one of the first surface and the second surface around the circumferential direction of the rotating shaft; the balls are accommodated in the ball grooves in a one-to-one correspondence manner and are propped against the first surface or the second surface opposite to the ball grooves; the ball groove is configured and adapted to restrict movement of the ball received therein relative to the switch.

Further, four balls and four ball grooves are arranged.

Further, the valve body comprises a valve shell, a base and a stator plate; the switching piece comprises an operating rod and a moving plate; the valve shell is provided with a water inlet and is fixedly connected with the base to form the valve cavity in a matched manner; the base is provided with at least one water outlet and is fixedly connected with the still piece; the static sheet is provided with static sheet water outlets which are communicated with the water outlets in a one-to-one correspondence manner; the operating rod penetrates through the valve shell along the rotating shaft, is rotatably connected with the valve shell and is provided with the second surface; the movable plate is in rotation stopping fit with the operating rod and abuts against the fixed plate to be matched with the valve cavity so that the operating rod is limited in the axial direction, and a movable plate water passing port is formed in the movable plate water passing port; the moving plate water passing port is configured and suitable for switching and communicating the water inlet with any one of the static plate water passing ports during the rotation of the moving plate so as to switch the water outlet function of the valve body.

Further, the device also comprises an elastic pin; the elastic pin is arranged on the operating rod and protrudes out of the operating rod along the radial direction so as to be abutted against the inner wall of the valve shell; and a plurality of gear grooves corresponding to the water outlet function of the valve body are formed in the inner wall of the valve shell corresponding to the elastic pin.

Further, the valve shell is provided with a clamping interface; the base is provided with be used for with joint interface joint complex joint.

Further, the operating rod faces to one end of the movable piece to form a rotation stopping protrusion; the movable plate is provided with a rotation stopping groove matched with the rotation stopping protrusion.

Further, a rotation stopping concave hole is formed in one side surface, facing the base, of the static sheet; the base is provided with a rotation stopping convex column matched with the rotation stopping concave hole.

As can be seen from the above description of the present invention, the present invention has the following advantages over the prior art:

1. install the ball between switching piece and valve body, when switching piece rotates relative to the valve body, can reduce the frictional force between first face and the second face, can guarantee the valve body again simultaneously to the spacing of switching piece in the axial can not loosen and take off, the removal of ball still is restricted by the ball groove in addition, the ball can only rotate or roll in situ in the ball groove, the position of ball relative switching piece keeps fixed throughout like this at the in-process that switching piece rotates, the ball can remain the state of arranging evenly in week all the time, thereby make the butt atress between switching piece and the valve body keep balanced, guarantee the effect that the ball reduces the frictional force between switching piece and the valve body.

2. The valve body comprises valve casing, base and stator, and the switch comprises action bars and rotor, and the user can rotate the action bars with the hand, makes the rotor rotate relative to the stator, and then makes the rotor on the rotor cross the mouth of a river and switch to communicate different stators to cross the mouth of a river or rotate to the position of being shutoff by the stator to the effect of switching valve body play water function is realized.

3. An elastic pin is provided which is arranged to protrude beyond the operating rod in a radial direction perpendicular to the axis of rotation, since the first face on the operating rod is required for cooperation with the ball, and which can provide a shift feel for the rotation of the switch member by being sequentially recessed into the shift grooves on the inner wall of the valve housing.

4. The base is fixedly connected with the valve shell through clamping matching, and the valve body is convenient to assemble.

5. The operating rod is connected with the moving plate in a rotation stopping way through the matching of the rotation stopping protrusion and the rotation stopping groove, so that the operating rod can drive the moving plate to rotate together through rotation.

6. The base is connected with the static sheet in a rotation stopping way through the matching of the rotation stopping concave hole and the rotation stopping convex column, and the static sheet is fixed relative to the valve shell because the base is fixedly connected with the valve shell into a whole.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded view of an embodiment of a rotary valve according to the present invention;

fig. 2 is a schematic cross-sectional view of the rotary valve of fig. 1 after assembly.

Description of the main reference numerals:

a valve housing 10; a top opening 11; a water inlet 12; a card interface 13; a positioning notch 14; a first face 15; an operating lever 20; a second face 21; a ball groove 211; balls 212; a rotation stop protrusion 22; a spring pin mounting hole 23; the operating rod seal ring 24; a spring 31; a collision bead 32; a rotor 40; a moving plate water gap 41; a rotation stop groove 42; a stator 50; a stationary blade water gap 51; a rotation stopping recessed hole 52; a base 60; a rotation stopping convex column 61; a water outlet 62; a snap joint 63; a positioning boss 64; a stationary seal ring 65; valve chamber 70.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the utility model and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Referring to fig. 1 and 2, fig. 1 shows a schematic structural view of an embodiment of a rotary valve provided by the present invention, fig. 2 shows a schematic sectional view of the rotary valve in fig. 1 after assembly is completed, and the following description takes the orientation shown in fig. 1 and 2 as an example, and the rotary valve mainly includes a valve body, a switching member, a plurality of balls 212, an elastic pin, and a plurality of sealing rings.

Wherein the valve body comprises a valve housing 10, a base 60 and a stator 50.

A top opening 11 is provided at the top of the valve housing 10, and the lower end of the valve housing is also provided with an opening, a chamber with both ends open is formed in the chamber, and the chamber is formed with a stepped hole extending in the up-down direction at the chamber wall, the opening with the smaller diameter of the stepped hole is the top opening 11, and the opening with the larger diameter of the stepped hole is the opening at the lower end of the valve housing 10, so that the stepped surface corresponding to the stepped hole forms a first surface 15 facing the lower end of the valve housing 10.

Still be equipped with water inlet 12 in the lateral wall department of valve casing 10, stagger simultaneously with water inlet 12 in the upper and lower direction and be equipped with a plurality of joint interface 13, the outside of water inlet 12 intercommunication valve casing 10 and inside cavity thereof.

In addition, a plurality of shift grooves are uniformly formed on the inner wall of the valve housing 10 for forming the inner chamber thereof along the circumferential direction of the valve housing 10, and the number of the shift grooves is two and the shift grooves are symmetrically formed in the present embodiment.

Two water outlets 62 symmetrically arranged are arranged on the base 60 in a penetrating manner along the vertical direction, a sealing ring groove surrounding the two water outlets 62 is arranged on the upward surface of the base 60, and the static sealing ring 65 can be arranged in the sealing ring groove to enable the two water outlets 62 to communicate with each other independently. Two rotation stopping convex columns 61 are further arranged on the upward surface of the base 60, and the rotation stopping convex columns 61 are symmetrically arranged. Still be equipped with two symmetrical joint heads 63 and location arch 64 at the periphery of base 60, thereby joint head 63 can fix the base 60 joint to valve casing 10 with the joint mouth 13 joint cooperation on the valve casing 10, and location arch 64 can cooperate with location breach 14 on the valve casing 10 so that fix a position base 60 relative valve casing 10 when the installation.

Be equipped with two still on the still 50 and cross mouth of a river 51, and still 50 the surface down be equipped with two with the base 60 on the stationary projection 61 grafting complex stationary shrinkage pool 52, still 50 both sides of still are formed with the plane of stalling simultaneously respectively, when still 50 installs on the base 60, two still cross mouth of a river 51 and can correspond with two delivery ports 62 on the base 60, and realize sealed intercommunication through still sealing washer 65, the plane of stalling on still 50 simultaneously can be restricted by two joint 63, foretell structure of stalling can mutually support and make still 50 can not rotate by base 60 relatively.

When assembling the valve body, the stator 50 is first mounted on the base 60, and then the base 60 is fixed to the valve housing 10 in a snap-fit manner, at this time, a valve cavity 70 is formed between the stator 50 and the valve housing 10, and the first surface 15 is located on a cavity wall of the valve cavity 70.

The switch includes an operating lever 20 and a moving plate 40.

The switching member is rotatably coupled to the valve body about a rotational axis perpendicular to the first face 15 to switch the water discharge function of the valve body, and is provided with a second face 21 located in the valve chamber 70 and opposite to the first face 15.

The operating lever 20 is constructed as shown in fig. 1 and includes an operating portion to which a handle or a handwheel is attached so that the user can rotate the operating lever 20, and the operating lever 20 extends through the valve housing 10 along the rotation axis of the switch and extends from the top opening 11. The outer side wall of the operating rod 20 parallel to the rotation axis is further provided with two sealing ring grooves along the circumferential direction, and the two sealing ring grooves can be used for installing the operating rod sealing ring 24, so that the outer side wall of the operating rod 20 can be in sealing fit with the valve housing 10 when penetrating through the valve housing 10.

At a lower position on the operating rod 20, a flange structure is provided which forms an upwardly directed second face 21, the second face 21 being opposite the first face 15 when the operating rod 20 is installed in the valve housing 10.

The ball grooves 211 with the same number as the balls 212 are uniformly distributed on the second surface in the circumferential direction of the rotating shaft, the balls 212 are correspondingly accommodated in the ball grooves 211 one by one and abut against the first surface 15 opposite to the ball grooves 211, and the ball grooves 211 are configured to limit the movement of the accommodated balls 212 relative to the switch member.

Specifically, four ball grooves 211 are uniformly arranged on the second surface 21 around the circumferential direction of the rotation axis, each ball groove 211 may receive one ball 212, and when the ball 212 is placed in the ball groove 211, a portion of the ball 212 is exposed to the ball groove 211. Since each ball groove 211 can accommodate only one ball 212, the ball 212 can only rotate or roll in place in the ball groove 211 relative to the ball groove 211, and cannot be positionally shifted relative to the operating lever 20.

The operation rod 20 is further provided with an elastic pin mounting hole 23 which is recessed from the outer side wall thereof along a radial direction perpendicular to the rotation axis, the elastic pin comprises a spring 31 and a collision ball 32, the spring 31 and the collision ball 32 can be mounted in the elastic pin mounting hole 23, specifically, one end of the spring 31 abuts against the bottom wall of the elastic pin mounting hole 23, and the other end abuts against the collision ball 32, at this time, the collision ball 32 protrudes out of the outer side wall of the operation rod 20, and after the operation rod 20 is mounted on the valve housing 10, the collision ball 32 cooperates with the shift grooves on the valve housing 10 to provide corresponding shift feeling for the rotation of the operation rod 20 by sequentially falling into the shift grooves, and the shift grooves correspond to the positions of the stator blade water outlets 51 on the stator blade 50, so that when the elastic pin falls into the corresponding shift grooves, the valve body provides corresponding water outlet function.

Three rotation stopping protrusions 22 are further provided on the outer periphery of the bottom end of the operating lever 20.

The rotor 40 is provided with a rotation stopping groove 42 matched with the rotation stopping protrusion 22, the rotation stopping protrusion 22 can be inserted into the rotation stopping groove 42, so that the rotor 40 is matched with the operating rod 20 in a rotation stopping manner, meanwhile, the rotor 40 is also provided with a rotor water passing opening 41, and the rotor water passing opening 41 is always communicated with the valve cavity 70, namely, the water passing opening 41 is always communicated with the water inlet 12. When the moving plate 40 is installed in the valve chamber 70, the downward surface of the moving plate abuts against the upward surface of the static plate 50, and when the moving plate 40 rotates along with the operating rod 20, the moving plate water gap 41 moves to a position communicated with the static plate water gap 51 on the static plate 50 or a position blocked by the upward surface of the static plate 50, so that the purpose of switching the water outlet function of the valve body is achieved.

Further, the switching member is axially retained by the valve body by the abutment of the moving plate 40 and the stationary plate 50 and the abutment of the ball 212 and the first surface 15.

Of course, in other embodiments, the ball grooves 211 may be provided in the first face 15, which modification does not affect the relative rotation between the switch member and the valve housing and may also act to reduce friction therebetween.

According to the rotary valve provided by the utility model, the ball 212 is arranged between the switching piece and the valve body, when the switching piece rotates relative to the valve body, the friction force between the first surface 15 and the second surface 21 can be reduced, meanwhile, the axial limit of the valve body to the switching piece can not be loosened, in addition, the movement of the ball 212 is also limited by the ball groove 211, the ball 212 can only rotate or roll in place in the ball groove 211, thus the position of the ball 212 relative to the switching piece is always fixed in the rotating process of the switching piece, the ball 212 can be always uniformly arranged in the circumferential state, the abutting stress between the switching piece and the valve body is kept balanced, and the effect that the ball 212 reduces the friction force between the switching piece and the valve body is ensured.

The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the utility model or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the utility model.

Claims (7)

1. A rotary valve, comprising:

the valve body is provided with a valve cavity, and the valve cavity is provided with a first surface;

the switching piece is rotatably connected to the valve body around a rotating shaft perpendicular to the first surface so as to switch the water outlet function of the valve body, and is provided with a second surface which is positioned in the valve cavity and is opposite to the first surface; and

a plurality of balls;

ball grooves with the same number as the balls are uniformly distributed on one of the first surface and the second surface around the circumferential direction of the rotating shaft;

the balls are accommodated in the ball grooves in a one-to-one correspondence manner and are propped against the first surface or the second surface opposite to the ball grooves;

the ball groove is configured and adapted to restrict movement of the ball received therein relative to the switch.

2. A rotary valve as claimed in claim 1, wherein there are four of said balls and said ball grooves.

3. A rotary valve as claimed in claim 1, wherein said valve body comprises a valve housing, a base and a stator; the switching piece comprises an operating rod and a moving plate;

the valve shell is provided with a water inlet and is fixedly connected with the base to form the valve cavity in a matched manner;

the base is provided with at least one water outlet and is fixedly connected with the still piece;

the static sheet is provided with static sheet water outlets which are communicated with the water outlets in a one-to-one correspondence manner;

the operating rod penetrates through the valve shell along the rotating shaft, is rotatably connected with the valve shell and is provided with the second surface;

the movable plate is in rotation stopping fit with the operating rod and abuts against the fixed plate to be matched with the valve cavity so that the operating rod is limited in the axial direction, and a movable plate water passing port is formed in the movable plate water passing port; the moving plate water passing port is configured and suitable for switching and communicating the water inlet with any one of the static plate water passing ports during the rotation of the moving plate so as to switch the water outlet function of the valve body.

4. A rotary valve as claimed in claim 3, further comprising a resilient pin; the elastic pin is arranged on the operating rod and protrudes out of the operating rod along a radial direction perpendicular to the rotating shaft so as to abut against the inner wall of the valve shell; and a plurality of gear grooves corresponding to the water outlet function of the valve body are formed in the inner wall of the valve shell corresponding to the elastic pin.

5. A rotary valve as claimed in claim 3, wherein said valve housing is provided with a snap-in interface; the base is provided with be used for with joint interface joint complex joint.

6. A rotary valve as claimed in claim 3, wherein said operating lever has a rotation stop projection toward one end of said moving plate; the movable plate is provided with a rotation stopping groove matched with the rotation stopping protrusion.

7. A rotary valve as claimed in claim 3, wherein a surface of said stationary plate facing said base is provided with a detent recess; the base is provided with a rotation stopping convex column matched with the rotation stopping concave hole.

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