CN116518118A - Valve - Google Patents

Abstract

The invention discloses a valve, comprising: a valve body comprising an inlet fitting and an outlet tube; the movable sleeve is sleeved on the outlet pipe and can rotate around the axis of the movable sleeve; the plug body is plugged into the outer end side of the movable sleeve; the outlet connector is embedded in the plug body at one end and extends out of the plug body at the other end, and has two degrees of freedom, wherein the first degree of freedom is that the movable sleeve rotates around the axial lead of the outlet pipe, and the second degree of freedom is that the axial lead of the outlet connector is subjected to angle change relative to the axial lead of the outlet pipe; the locking sleeve can limit or release the limitation on the first degree of freedom; the locking button can limit or release the second degree of freedom. The valve can change the orientation of the outlet joint by adjusting the two degrees of freedom, so that the valve can be conveniently and smoothly connected with a downstream pipeline, and after the valve is connected, the two degrees of freedom can be locked through the locking sleeve and the locking button, so that the outlet joint is prevented from shaking or generating angle deviation.

Description

Valve

Technical Field

The invention relates to the field of valves.

Background

At present, the angle of an outlet joint of the common three-way valve is generally fixed and cannot be freely adjusted according to the needs, so that the outlet joint of the valve cannot flexibly adjust the direction under some application scenes, and the valve is troublesome to connect with a downstream pipeline. In this regard, the inventor of the present application devised a three-way valve with an adjustable angle, and filed a related patent (application number 202310275358.4), and the outlet connector of the three-way valve is flexible and can freely adjust the angle, but the angle of the outlet connector can be fixed only by means of the extrusion clamping action of the plug body after the angle adjustment, so the angle of the outlet connector is not completely locked, and if the outlet connector is broken with a slightly larger force, the angle is changed, so the following disadvantages exist in the use process: if the outlet joint is connected with a rigid downstream pipeline (such as a steel pipe) and the downstream pipeline is fixed and not movable, the angle of the outlet joint can be locked after the outlet joint is connected with the downstream pipeline, and the outlet joint can not shake or swing in the use process; however, if the outlet connector is connected to a non-rigid downstream pipeline (such as a woven pipe), the angle of the outlet connector is not locked after the outlet connector is connected to the downstream pipeline, and in the use process, the outlet connector may shake or swing angularly along with the on-off of the fluid, the connection between the outlet connector and the downstream pipeline may loose, or the joint of the downstream pipeline may be bent and damaged due to repeated swinging of the outlet connector.

In this regard, the inventor has had a need to modify the three-way valve previously applied to such a way that the outlet fitting not only can be angularly adjusted, but also can be locked after adjustment.

Disclosure of Invention

The invention aims to provide a valve, an outlet joint of which not only can be adjusted in angle, but also can be locked after the adjustment.

The technical scheme adopted for solving the technical problems is as follows: there is provided a valve comprising:

the valve body comprises an inlet joint, an outlet pipe and a valve core; wherein, the valve core controls the on-off relation between the inlet joint and the outlet pipe through the movement of the valve core;

the inner side of the movable sleeve is sleeved on the outlet pipe, the movable sleeve can rotate around the axis of the movable sleeve relative to the outlet pipe, and a gap between the movable sleeve and the outlet pipe is sealed;

the plug body is made of elastic materials, the plug body is plugged into the outer end side of the movable sleeve, and a gap between the outer wall of the plug body and the inner wall of the movable sleeve is sealed;

an outlet connector, one end of which is embedded in the plug body, and the other end of which extends out of the plug body; the outlet joint is provided with two adjustable degrees of freedom, namely a first degree of freedom and a second degree of freedom, wherein the first degree of freedom is that the movable sleeve rotates around the axis II of the outlet pipe, and the second degree of freedom is that the axis I of the outlet joint changes in angle relative to the axis II of the outlet pipe;

The locking sleeve is sleeved on the outlet pipe; the locking sleeve is used for limiting or releasing the first degree of freedom of the outlet joint by moving along the axial direction of the outlet pipe;

the locking button is arranged on the movable sleeve; the locking knob is movable in a radial direction of the movable sleeve to limit or release the second degree of freedom of the outlet fitting.

Further, the outer wall of the outlet pipe is provided with a section of external threads;

the inner wall of the locking sleeve is provided with an internal thread, the locking sleeve is screwed on the external thread of the outlet pipe through the internal thread, and one end of the locking sleeve, which faces the movable sleeve, is provided with a circle of rubber ring;

when the locking sleeve moves along the axial direction of the outlet pipe and approaches the movable sleeve through the matching of the internal thread and the external thread, the rubber ring can tightly prop against the inner side end surface of the movable sleeve when the locking sleeve moves to the maximum extent, so that the rotation of the movable sleeve is limited by friction force formed by extrusion.

Further, the outer wall of the locking sleeve is in a regular hexagon shape.

Further, two stepped holes are formed in the outer wall of the movable sleeve, the two stepped holes are oppositely arranged, the diameter of the inner side of each stepped hole is small, and the diameter of the outer side of each stepped hole is large;

The plug body is provided with a ball groove, a cylinder groove, a fluid channel and a guide groove; the spherical groove is positioned in the middle of the plug body and is communicated with the outer end surface of the plug body through a communication hole; the number of the cylindrical grooves is two and the cylindrical grooves are respectively communicated with two sides of the spherical groove, the axial leads of the two cylindrical grooves are collinear and pass through the spherical center of the spherical groove, and meanwhile, the axial leads of the cylindrical grooves are also collinear with the axial leads of the stepped holes; the number of the fluid channels is two, the initial ends of the two fluid channels are provided with openings on the inner end surface of the plug body, and the tail ends of the two fluid channels are respectively communicated with the two cylindrical grooves; the guide groove is a sinking groove formed on the outer end face of the plug body, the guide groove extends along the radial direction of the plug body, one end of the guide groove is communicated with the spherical groove, the other end of the guide groove extends to the side wall of the plug body, and meanwhile, the extending direction of the guide groove and the axial lead of the cylindrical groove are mutually perpendicular in three-dimensional space;

the outlet joint comprises a spheroid, a rod body and a limit column; the spheroid is embedded and wrapped in the spheroid groove of the plug body; the rod body passes through the communication hole and then extends out of the stopper body, and the outer diameter of the rod body is smaller than the inner diameter of the communication hole and is also smaller than the width of the guide groove body; the two limit posts are respectively embedded into the two cylindrical grooves, a partition plate is arranged in the limit posts, a cavity is arranged on one side of the partition plate, which is close to the spheroid, a threaded counter bore is arranged on one side of the partition plate, which is far away from the spheroid, the cavity is communicated with the inner cavity of the spheroid, and a circle of grid holes are formed in the side wall of the cavity;

The number of the locking buttons is consistent with that of the limiting columns, and each locking button is matched with each limiting column one to one; the middle part of locking button is equipped with a clamp plate, and one side of clamp plate is twists the portion of holding, and the opposite side is the screw thread post, this screw thread post with the screw thread counter bore phase-match of spacing post, when the screw thread post is screwed completely in the screw thread counter bore, the clamp plate supports at this moment tightly on the step face of shoulder hole.

Furthermore, the locking button is also provided with a limit cover plate, the limit cover plate is covered and fixed at the opening of the stepped hole, a magnetic ring is fixed at the inner side of the limit cover plate, and a round hole is arranged at the centers of the limit cover plate and the magnetic ring;

the pressing plate of the locking button is made of ferromagnetic materials, the pressing plate is positioned in the stepped hole on the inner side of the magnetic ring, and the screwing part of the screwing button penetrates through the round hole from inside to outside and then extends out of the limit cover plate; and when the pressing plate is adsorbed on the magnetic ring, the threaded column and the threaded counter bore of the limit column are mutually separated at the moment.

Further, a notch is formed in the outer side of the movable sleeve in the radial direction of the guide groove, and the contour of the notch is consistent with that of the guide groove.

Further, the plug body comprises an inner plug and a plug cover; the inner plug is plugged into the inner cavity of the movable sleeve; the plug cover is covered on the outer end face of the movable sleeve, and the inner end face of the plug cover and the outer end face of the inner plug are mutually abutted tightly and tightly attached;

the spherical groove is formed by an inner plug and a plug cover which are spliced together, namely, one part of the spherical groove is formed on the inner plug, and the other part of the spherical groove is formed on the plug cover;

the cylinder groove is also formed by an inner plug and a plug cover which are spliced together, namely, one part of the cylinder groove is formed on the inner plug, and the other part of the cylinder groove is formed on the plug cover;

the fluid channel is arranged in the inner plug, and extends along the axial direction of the inner plug;

the guide groove is also formed by the inner plug and the plug cover which are spliced together, namely, one part of the guide groove is formed on the inner plug, and the other part of the guide groove is formed on the plug cover.

Further, the inner plug and the plug cover are made of rubber materials.

Further, the movable sleeve is sleeved on the outer wall of the outlet pipe through two bearings, and a sealing ring is arranged between the two bearings and used for sealing a gap between the movable sleeve and the outlet pipe.

In addition, the invention also provides a structure capable of locking the adjusting angle of the valve outlet joint, one end of the outlet joint is a sphere and is embedded in a spherical groove of a plug body, the outlet joint can realize the angle adjustment by means of the rotation of the sphere in the spherical groove, and the structure is characterized in that:

the outlet joint further comprises two limit posts, the two limit posts are respectively connected to two sides of the spheroid, a partition plate is arranged in the limit posts, a cavity is arranged on one side, close to the spheroid, of the partition plate, a threaded counter bore is arranged on one side, away from the spheroid, of the partition plate, the cavity is communicated with the inner cavity of the spheroid, and a circle of grid holes are formed in the outer wall of the cavity;

the limiting columns are provided with locking buttons, the number of the locking buttons is consistent with that of the limiting columns, each locking button is matched with each limiting column one by one, a pressing plate is arranged in the middle of each locking button, one side of each pressing plate is provided with a screwing part, the other side of each pressing plate is provided with a threaded column, and the threaded columns are matched with threaded counter bores of the limiting columns;

when the threaded column is completely screwed into the threaded counter bore, the pressing plate is abutted against a specific surface, and the degree of freedom of the rotation of the limiting column around the axis of the limiting column is locked, so that the adjusting angle of the outlet joint is locked.

The beneficial effects of the invention are as follows:

when the valve is used, the angles of the two outlet connectors can be adjusted, and the angles of the outlet connectors are adjusted in two degrees of freedom, namely a first degree of freedom and a second degree of freedom, wherein when the first degree of freedom is adjusted: the movable sleeve is rotated by hand, so that the outlet joint can rotate around the axial lead of the outlet pipe; adjusting the second degree of freedom: holding the movable sleeve, and then manually snapping the outlet connector, so that the outlet connector can be clamped into the guide groove or separated from the guide groove, namely, the included angle between the axial lead I of the outlet connector and the axial lead II of the outlet pipe can be changed;

when the first degree of freedom of the outlet joint is required to be locked, the locking sleeve can be rotated, so that the rubber ring of the locking sleeve tightly abuts against the inner side end surface of the movable sleeve, and the movable sleeve is locked by friction force, so that the movable sleeve cannot rotate around the self axial lead; when the second degree of freedom of the outlet joint is required to be locked, the screwing parts of the two locking buttons can be pushed downwards by hands to separate the pressing plate from the magnetic ring, and then the screwing parts are rotated to enable the threaded columns of the two locking buttons to be screwed in corresponding threaded counter bores respectively, so that the second degree of freedom of the outlet joint can be locked.

Therefore, when the valve is installed, if the condition that the installation is limited or the connection of a downstream pipeline is inconvenient after the installation is met, the orientation of the outlet joint can be changed by adjusting the two degrees of freedom of the outlet joint, so that the valve can be smoothly installed or the downstream pipeline can be smoothly connected with the outlet joint;

meanwhile, as the two degrees of freedom of the outlet joint can be locked, after the angle of the outlet joint is adjusted, the angle of the outlet joint can be fixed, so that the outlet joint is connected with a non-rigid downstream pipeline (such as a woven pipe), and the outlet joint can not shake or swing in the subsequent use process, thereby avoiding the situation that connection looseness or damage caused by repeated bending possibly occurs in the long-term use in the background technology.

Drawings

Fig. 1 is a perspective view of embodiment 1 of the present invention;

fig. 2 is a front view of embodiment 1 of the present invention;

FIG. 3 is a view in the A-A direction of FIG. 2;

FIG. 4 is an isometric view of FIG. 3;

FIG. 5 is a top view of FIG. 2;

FIG. 6 is a B-B view of FIG. 5;

FIG. 7 is an enlarged view of the area within the dashed line in FIG. 6;

FIG. 8 is a state diagram of the second degree of freedom of the outlet fitting locked by the locking knob on the basis of FIG. 7;

FIG. 9 is a disassembled view showing the mutual fitting relationship of the locking knob, the limiting post and the movable sleeve in the embodiment 1 of the present invention;

FIG. 10 is an isometric view of FIG. 6;

FIG. 11 is an enlarged view of the area within the dashed line in FIG. 10;

FIG. 12 is a tamper evident view of the mating relationship of the outlet fitting, inner plug, plug cap of example 1 of the present invention;

FIG. 13 is an assembly view showing the mutual fitting of the outlet fitting, the inner plug and the plug cover in embodiment 1 of the present invention;

fig. 14 is a schematic view of the invention in example 1 when applied.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but embodiments of the present invention are not limited thereto.

The present invention provides a valve comprising: valve body 1, movable sleeve 2, cock body 3, outlet connection 4, lock sleeve 7 and lock button 8.

The valve body 1 comprises an inlet fitting 11, an outlet tube 12 and a valve cartridge 13. Wherein, the valve core 13 controls the on-off relation between the inlet joint 11 and the outlet pipe 12 through the movement of the valve core 13, i.e. when only one outlet pipe 12 exists, the valve core 13 can make the outlet pipe 12 be communicated with or disconnected from the inlet joint 11, and when the number of the outlet pipes 12 is greater than one, the valve core 13 can selectively make one or more outlet pipes 12 be communicated with the inlet joint 11, and simultaneously make the rest of outlet pipes 12 be disconnected from the outlet joint 11.

The number of the movable sleeves 2 is consistent with that of the outlet pipes 12, the inner sides of the movable sleeves 2 are sleeved on the corresponding outlet pipes 12, the movable sleeves 2 can rotate around the axis of the movable sleeves 2 relative to the outlet pipes 12, and gaps between the movable sleeves 2 and the outlet pipes 12 are sealed.

The number of the plug bodies 3 is consistent with that of the movable sleeves 2, the plug bodies 3 are made of elastic materials, the plug bodies 3 are plugged into the outer end sides of the corresponding movable sleeves 2, and gaps between the outer walls of the plug bodies 3 and the inner walls of the movable sleeves 2 are sealed.

The number of the outlet connectors 4 is consistent with that of the plug bodies 3, one end of each outlet connector 4 is embedded in the corresponding plug body 3, and the other end extends out of the plug body 3; the outlet connection 4 has two adjustable degrees of freedom, a first degree of freedom, which is a rotational movement about the axis IIa2 of the outlet pipe 12 by means of the movable sleeve 2, and a second degree of freedom, which is an angular change of the axis Ia1 of the outlet connection 4 relative to the axis IIa2 of the outlet pipe 12.

The locking sleeve 7 is sleeved on the outlet pipe 12, and the locking sleeve 7 can move along the axial direction of the outlet pipe 12 so as to realize the limitation or the release of the first degree of freedom of the outlet joint 4.

The locking button 8 is disposed on the movable sleeve 2, and the locking button 8 can move along the radial direction of the movable sleeve 2, so as to limit or release the second degree of freedom of the outlet connector 4.

According to the technical scheme, the number of the outlet connectors of the valve is not particularly limited, so that the valve can be a straight-through valve, a three-way valve or a four-way valve and the like. For a more detailed description of the valve of the present invention, a three-way valve will be described in detail below, but other types of valves are not illustrated, but reference is made to example 1 below.

Example 1:

referring to fig. 1 to 13, the present embodiment provides a three-way valve comprising: valve body 1, movable sleeve 2, cock body 3, outlet connection 4, lock sleeve 7 and lock button 8.

The valve body 1 comprises an inlet fitting 11, two outlet pipes 12 and a valve cartridge 13. The inlet joint 11 is used for being connected with an upstream pipeline, the inlet joint 11 and the two outlet pipes 12 are distributed in a T shape, the valve core 13 is arranged at the joint of the inlet joint 11 and the two outlet pipes 12 (see fig. 4), and the valve core 13 can enable the inlet joint 11 to be communicated with one of the outlet pipes 12 through the rotation motion of the valve core 13, or enable the inlet joint 11 to be simultaneously communicated with the two outlet pipes 12, or enable the inlet joint 11 to be not communicated with the two outlet pipes 12.

The number of the movable sleeves 2 is two, the two movable sleeves 2 are respectively and coaxially sleeved on the two outlet pipes 12, the movable sleeves 2 can rotate 360 degrees around the axis of the movable sleeves 2 relative to the connected outlet pipes 12, and the gap between the movable sleeves 2 and the connected outlet pipes 12 is always sealed.

The number of the plug bodies 3 is two, the two plug bodies 3 and 3 are made of elastic materials, the two plug bodies 3 are respectively plugged into the outer end sides of the two movable sleeves 2, and gaps between the outer walls of the plug bodies 3 and the inner walls of the movable sleeves 2 are sealed, so that leakage of fluid media is avoided.

The number of the outlet connectors 4 is two, one ends of the two outlet connectors 4 are respectively embedded into the two plug bodies 3, and the other ends of the outlet connectors 4 extend out of the plug bodies 3. The two outlet connections 4 each have two adjustable degrees of freedom, a first degree of freedom, in which the outlet connection 4 is rotated about the axis IIa2 of the outlet pipe 12 by means of the movable sleeve 2, and a second degree of freedom, in which the axis Ia1 of the outlet connection 4 is angularly varied relative to the axis IIa2 of the outlet pipe 12.

The number of the locking sleeves 7 is two, and the two locking sleeves 7 are respectively sleeved on the two outlet pipes 12. The locking sleeve 7 is movable in the axial direction of the respective outlet pipe 12 to effect a restriction or a de-restriction of the first degree of freedom of the respective outlet fitting 4.

The number of the locking buttons 8 is two, and the two locking buttons 8 are respectively arranged on the two movable sleeves 2. The locking knob 8 is movable in the radial direction of the respective movable sleeve 2 to effect a restriction or a de-restriction of the second degree of freedom of the respective outlet fitting 4.

Referring to fig. 3 and 6, regarding the above-mentioned locking sleeve 7 and related structures, more specifically:

the outer walls of both the outlet pipes 12 are provided with a section of external threads 121;

the inner walls of the two locking sleeves 7 are respectively provided with an internal thread, the two locking sleeves 7 are respectively screwed on the external threads 121 of the two outlet pipes 12 through the internal threads, and one end of each locking sleeve 7 facing the movable sleeve 2 is provided with a circle of rubber ring 71;

wherein the external thread 121 of the outlet pipe 12 has a width greater than the thickness of the locking sleeve 7; in this way, when the locking sleeve 7 is rotated, the locking sleeve 7 can be moved to a side close to the movable sleeve 2 or to a side away from the movable sleeve 2 along the axial direction of the outlet pipe 2;

when the movable sleeve 2 needs to be locked, the locking sleeve 7 can be rotated, so that the locking sleeve 7 moves to the side close to the movable sleeve 2 through the matching of the internal thread and the external thread 121 until the locking sleeve moves to the limit position, the rubber ring 71 is tightly abutted against the inner side end surface of the movable sleeve 2, at the moment, the rubber ring 71 extrudes the inner side end surface of the movable sleeve 2 to generate enough friction force, the movable sleeve 2 is locked and cannot rotate due to the friction force, and further the limitation of the first degree of freedom of the outlet joint 4 is realized; when the movable sleeve 2 is unlocked, the locking sleeve 7 is only required to be reversely rotated, the rubber ring 71 does not press the inner side end surface of the movable sleeve 2 any more, and after the movable sleeve 2 is unlocked, the movable sleeve 2 can freely rotate around the axis of the movable sleeve, so that the limitation of the first degree of freedom of the outlet joint 4 is removed.

Further, in order to facilitate screwing the locking sleeve 7 with a wrench, the outer wall of the locking sleeve 7 is designed to be regular hexagon (see fig. 1), so that the locking sleeve 7 is clamped and forced by the wrench, the locking sleeve 7 is screwed to the greatest extent, and the locking sleeve 7 is tightly abutted against the inner side end face of the movable sleeve 2.

Referring to fig. 6 to 9 and 10 to 13, regarding the above-mentioned plug body 3, outlet connector 4, locking knob 8 and related structures, more specifically:

the outer wall of the movable sleeve 2 is provided with two stepped holes 23, the two stepped holes 23 are oppositely arranged, the diameter of the inner side of each stepped hole 23 is small, and the diameter of the outer side of each stepped hole is large;

the plug body 3 is provided with a spherical groove 3a, a cylindrical groove 3e, a fluid channel 3b and a guide groove 3c; the spherical groove 3a is positioned in the middle of the plug body 3, and the spherical groove 3a is communicated with the outer end surface of the plug body 3 through a communication hole 3 d; the number of the cylindrical grooves 3e is two and the cylindrical grooves 3e are respectively communicated with two sides of the spherical groove 3a (see fig. 12), the axial lines of the two cylindrical grooves 3e are collinear and pass through the spherical center of the spherical groove 3a, and meanwhile, the axial line of the cylindrical groove 3e is also collinear with the axial line of the stepped hole 23; the number of the fluid channels 3b is two, the two fluid channels 3b are symmetrically distributed on the left side and the right side of the spherical groove 3a, the initial ends of the two fluid channels 3b are provided with openings 3ba on the inner end surface of the plug body 3, and the tail ends of the two fluid channels are respectively communicated with the two cylindrical grooves 3e, wherein the openings 3ba are communicated with the inner cavity of the outlet pipe 12; referring to fig. 4 and 13, the guiding groove 3c is a sinking groove formed on the outer end surface of the plug body 3, the guiding groove 3c extends along the radial direction of the plug body 3 (see z2 in fig. 4 or 13, namely, the extending direction of the guiding groove 3 c), one end of the guiding groove 3c is communicated with the spherical groove 3a, the other end of the guiding groove extends to the side wall of the plug body 3, and meanwhile, the extending direction z2 of the guiding groove 3c and the axial lead z1 of the cylindrical groove 3e are mutually perpendicular in three-dimensional space (see fig. 4 or 13);

The outlet joint 4 comprises a ball 41, a rod body 42 and a limit post 43; the spheroid 41 is embedded and wrapped in the spherical groove 3a of the plug body 3, the sphere center of the spheroid 41 is coincident with the axis of the outlet pipe 12, and the wall surface of the spheroid 41 is provided with an opening 4a; one end of the rod body 42 far away from the ball body 41 is used for being connected with a downstream pipeline, the rod body 42 passes through the communication hole 3d and then extends out of the stopper body 3, and the outer diameter of the rod body 42 is smaller than the inner diameter of the communication hole 3d and is also smaller than the width of the guide groove 3 c; the number of the limiting columns 43 is two and the limiting columns are respectively connected to two sides of the spherical body 41, meanwhile, the two limiting columns 43 are respectively embedded into the two cylindrical grooves 3e, the tops of the limiting columns 43 are clamped into the stepped holes 23, a partition plate 431 is arranged in the limiting columns 43, a cavity 432 is arranged on one side, close to the spherical body 41, of the partition plate 431, a threaded counter bore 433 is arranged on one side, away from the spherical body 41, of the cavity 432, the cavity 432 is communicated with the inner cavity of the spherical body 41 through the opening 4a, a circle of grid holes 434 are formed in the side wall of the cavity 432, the positions of the grid holes 434 correspond to those of the fluid channels 3b, and the grid holes 434 are formed by a plurality of strip-shaped holes formed around the periphery of the cavity 432; when the fluid medium flows out from the outlet pipe 12 into the fluid channel 3b, the fluid medium passes through the grid holes 434 and then enters the cavity 432 of the limiting post 43, then enters the cavity of the spheroid 41 from the opening 4a, then enters the cavity of the rod body 42, and then flows from the cavity of the rod body 42 to the downstream pipeline;

The number of the locking buttons 8 is consistent with that of the limit posts 43, each locking button 8 is matched with each limit post 43 one to one for use, and is used for locking or unlocking the rotational freedom degree of the limit post 43, specifically, a pressing plate 81 is arranged in the middle of the locking button 8, a screwing part 82 is arranged on the outer side of the pressing plate 81, a threaded post 83 is arranged on the inner side of the pressing plate 81, and the threaded post 83 is matched with a threaded counter bore 433 of the limit post 43; when the two threaded posts 83 are completely screwed into the corresponding threaded counter bores 433, the pressing plates 81 of the two locking buttons 8 respectively abut against the stepped surfaces 231 of the two stepped holes 23 (see fig. 8 for the state of the present embodiment), so that the two locking buttons 8 lock the rotational degrees of freedom of the two limiting posts 43, and the outlet connector 4 cannot rotate around the axis of the limiting posts 43, thereby realizing the limitation of the second degree of freedom of the outlet connector 4.

Wherein, the spheroid 41 is embedded and packed in the spherical groove 3a, the packing degree is required to meet the following two requirements: (1) The outer wall of the spheroid 41 is elastically abutted against the inner wall of the spherical groove 3a to the extent of close fitting so as to avoid leakage of the fluid medium from the gap between the two; (2) When the rod body 42 is forcibly broken, the ball body 41 can rotate in the spherical groove 3a, and the specific breaking force is determined according to the actual situation and the design requirement.

Based on the above technical solution, in the case that the two locking buttons 8 do not lock the limiting post 43, when the second degree of freedom of the outlet connector 4 needs to be adjusted, the rod body 42 of the outlet connector 4 is only required to be broken by force, so that the outlet connector 4 can rotate around the axis z1 of the cylindrical groove 3e, in the rotation process, the included angle between the axis Ia1 of the outlet connector 4 and the axis IIa2 of the outlet pipe 12 can be changed, the rod body 42 can be clamped into the guide groove 3c, the limiting post 43 can rotate in the cylindrical groove 3e, and because the cavity 432 of the limiting post 43 is provided with a circle of grid holes 434, in the rotation process, the cavity 432 can be always communicated with the fluid channel 3d through the grid holes 434, so that the fluid medium can still enter the outlet connector 4 when the angle of the outlet connector 4 is changed; when the outlet connector 4 rotates to a proper angle, the locking of the angle of the outlet connector 4 can be realized only by screwing the threaded posts 83 of the two locking buttons 8 into the corresponding threaded counter bores 433 respectively, and after the locking, the outlet connector 4 cannot rotate around the axis z1 of the re-cylindrical groove 3e, i.e. the second degree of freedom of the outlet connector 4 is locked.

Further, referring to fig. 7 to 9, the locking button 8 is further provided with a limiting cover plate 91, the limiting cover plate 91 covers and is fixed at the opening of the stepped hole 23, a magnetic ring 92 is fixed at the inner side of the limiting cover plate 91, and a round hole 9a is arranged at the centers of the limiting cover plate 91 and the magnetic ring 92; the pressing plate 81 of the locking button 8 is made of ferromagnetic material, the pressing plate 81 is positioned in the stepped hole 23 at the inner side of the magnetic ring 92, and the screwing part 82 of the screwing button 8 extends out of the limit cover plate 91 after penetrating through the round hole 9a from inside to outside; when the pressing plate 81 is adsorbed on the magnetic ring 92, the threaded post 83 and the threaded counter bore 433 of the limiting post 43 are separated from each other, that is, the threaded post 83 is located outside the threaded counter bore 433 and is not screwed into the threaded counter bore 433, and the outlet connector 4 can be adjusted in the second degree of freedom; when the second degree of freedom of the outlet connector 4 needs to be locked, the screwing parts 82 of the two locking buttons 8 can be pushed downwards with force to separate the pressing plate 81 from the magnetic ring 92, and then the two threaded posts 83 are screwed in the corresponding threaded counter bores 433 respectively.

The cover plate 91 functions as: the locking knob 8 is defined in the stepped bore 23 and can be screwed directly into the threaded counterbore 433 of the stop post 43 for ease of use. The magnetic ring 92 functions as: when the second degree of freedom of the outlet connector 4 is not required to be locked, the locking button 8 can be adsorbed on the magnetic ring 92, so that the locking button 8 is prevented from influencing the adjustment of the second degree of freedom of the outlet connector 4. Preferably, the screwing part 82 of the locking button 8 has a certain height, so that the hand can be conveniently held during screwing, and the external surface of the screwing part 82 can be provided with anti-slip lines to avoid slipping.

Further, in the above technical solution, it is also ensured that: the thread rotation direction of all the thread posts 83 and all the thread counterbores 433 is identical, such as by right hand threads or by left hand threads. Thus, when the two threaded posts 83 are screwed into the two threaded counter bores 433, respectively, at this time, if the rod body 42 of the outlet fitting 4 is forcibly pulled, the threaded rotation directions of the two side limit posts 43 are identical, so that at this time, one limit post 43 has a tendency to rotate in the screwing direction with respect to the corresponding threaded post 83, the other limit post 43 has a tendency to rotate in the unscrewing direction with respect to the corresponding threaded post 83, and is limited by the fitting relation of the screwed limit post 43 and the threaded post 83, and the outlet fitting 4 is not rotatable, so that the second degree of freedom of the outlet fitting 4 is locked, that is, when the rod body 42 of the outlet fitting 4 is forcibly pulled, although one limit post 43 can rotate in the unscrewing direction with respect to the threaded post 83, the outlet fitting 4 is limited by the fitting relation of the limit post 43 and the threaded post 83, because the pressing plate 81 connected to the threaded post 83 is not abutted against the stepped surface 231, and the second degree of freedom of the outlet fitting 4 is locked.

Preferably, in this embodiment, the movable sleeve 2 is provided with a notch 21 on the outer side in the radial direction of the guide groove 3c, and the contour of the notch 21 matches the contour of the guide groove 3 c. The notch 21 plays a role of avoiding, so that the rod body 42 of the outlet joint 4 can be clamped into the notch.

With respect to the plug body 3, more specifically:

referring to fig. 3, 4 and 6 and 10, the plug body 3 includes an inner plug 31 and a plug cover 32; the inner plug 31 is plugged into the inner cavity of the movable sleeve 2; the plug cover 32 is covered on the outer end surface of the movable sleeve 2, and the inner end surface of the plug cover 32 and the outer end surface of the inner plug 31 are mutually abutted and tightly attached to avoid leakage of fluid medium;

the spherical groove 3a is formed by the inner plug 31 and the plug cover 32 which are spliced together, namely, one part of the spherical groove 3a is formed on the inner plug 31, and the other part is formed on the plug cover 32, see fig. 12;

the cylindrical groove 3e is also formed by the inner plug 31 and the plug cover 32 which are spliced together, namely, one part of the cylindrical groove 3e is formed on the inner plug 31, and the other part is formed on the plug cover 32, see fig. 12;

the fluid passage 3b is provided in the inner plug 31, and the fluid passage 3b extends in the axial direction of the inner plug 31, see fig. 12;

The guiding groove 3c is also formed by the inner plug 31 and the plug cover 32 which are spliced together, namely, one part of the guiding groove 3c is formed on the inner plug 31, and the other part is formed on the plug cover 32, see fig. 13;

the communication hole 3d penetrates the plug 32 from the center of the plug 32 in the axial direction, see fig. 12.

Further, referring to fig. 3, the inner wall of the movable sleeve 2 is provided with a step surface 22 for limiting, and the inner end surface of the inner plug 31 abuts against the step surface 22. The step surface 22 plays a role in positioning, and can position the position where the inner plug 31 is plugged into the movable sleeve 2.

In addition, the plug 32 is provided with a plurality of countersunk holes 321 (see fig. 12) penetrating the plug 32 along the axial direction at intervals, and correspondingly, the outer end surface of the movable sleeve 2 is provided with a plurality of threaded holes (not labeled in the figure) corresponding to the countersunk holes 321 one by one. When the plug cover 32 is fixed, the counter-sunk holes 321 of the plug cover 32 are aligned with the threaded holes of the movable sleeve 2 one by one, then the plug cover 32 and the movable sleeve 2 can be fixed by screwing in screws, after the fixing, the inner end surface of the plug cover 32 and the outer end surface of the inner plug 31 are mutually abutted and tightly attached, so that a gap between the plug cover 32 and the inner plug 31 can be sealed to avoid leakage of fluid medium, and meanwhile, the inner end surface of the inner plug 31 is abutted with the step surface 22.

In addition, in some cases, the rod 42 of the outlet connector 4 may be designed as shown in the drawings, that is, the outer diameter of the end of the rod 42 away from the ball 41 may be designed to be enlarged to increase the flow cross section. At this time, the hole diameter of the communication hole 3d of the stopper 32 may be smaller than the outer diameter of the end of the rod body 42 away from the ball body 41, so that the rod body 42 cannot be inserted into the communication hole 3d of the stopper 32 at the time of assembly. In this regard, the plug cover 32 may be split into two left and right flaps (not shown in the drawings), and the two left and right flaps of the plug cover 32 are respectively fixed to the movable sleeve 2 by screws, so that, during assembly, the two flaps of the plug cover 32 may be respectively clamped on the left and right sides of the outlet connector 4, and then the two flaps of the plug cover 32 are fixed to the movable sleeve 2 by screws.

Preferably, the inner plug 31 and the plug cover 32 are made of rubber material. Rubber has good elasticity, and after the inner plug 31 and the plug cover 32 are made of rubber materials, the inner plug 31 and the plug cover 32 can be mutually elastically abutted and attached, and meanwhile, the inner plug 31 made of rubber materials can be tightly attached to the inner wall of the movable sleeve 2, so that the purposes of sealing, no liquid leakage and no air leakage are achieved.

In addition, in order to further ensure the tightness, a ring of sealing ring (not shown in the figure) may be disposed on the ring surface of the inner plug 31, and the sealing ring abuts against the inner wall of the movable sleeve 2, so as to achieve the purpose of sealing the gap between the inner plug 31 and the movable sleeve 2.

Preferably, referring to fig. 3 and 6, the movable sleeve 2 is sleeved on the outer wall of the outlet pipe 12 through two bearings 51 and 52, the two bearings 51 and 52 are arranged at intervals, wherein a first bearing 51 is arranged close to the inlet joint 11, a second bearing 52 is arranged far away from the inlet joint 11, a sealing ring 6 is arranged between the first bearing 51 and the second bearing 52, and the sealing ring 6 is sleeved and fixed on the outer wall of the outlet pipe 12 so as to be used for sealing a gap between the movable sleeve 2 and the outlet pipe 12.

Furthermore, the movable sleeve 2 may also be designed to be composed of two valve parts (not shown in the figure), the two valve movable sleeves 2 are fixedly connected together by screws to form a whole, and a sealing gasket is further arranged at the joint to avoid leakage of fluid medium. In this way, during installation, the tops of the two limiting posts 43 of the outlet joint 4 can be clamped into the stepped holes 23 of the two movable sleeves 2 respectively, so that the installation is convenient.

In this embodiment, the structure and arrangement of the valve core 13 do not belong to the main improvement points of the present invention, and they belong to the prior art, so the specific structure and working principle of the valve core 13 will be described only briefly, and not be described in detail, as follows:

the valve core 13 is in a hollow sphere shape, the wall surface of the valve core 13 is provided with three holes, the three holes are communicated with the inner cavity of the valve core 13, and the valve core 13 can selectively enable the inlet joint 11 to be communicated with one of the outlet pipes 12 through the self angular rotation, or be simultaneously communicated with the two outlet pipes 12, or be not communicated with the two outlet pipes 12; the valve main body 1 is provided with a handle 14, the handle 14 is relatively fixed with the top of the rotary column 15, the bottom of the rotary column 15 is matched with the valve core 13, the valve core 13 can be driven to rotate, when the angle of the valve core 13 needs to be regulated, the handle 14 can be manually broken off, the valve core 13 is driven to rotate by the rotary column 15, the angle of the valve core 13 is changed, and the purpose of changing the on-off relation of the three-way valve is achieved.

When the three-way valve of the embodiment is used, the angles of the two outlet connectors 4 are adjustable, and the angle of the outlet connector 4 is adjusted in two degrees of freedom, namely a first degree of freedom and a second degree of freedom, wherein when the first degree of freedom is adjusted: the movable sleeve 2 is rotated by hand, so that the outlet joint 4 can rotate around the axial lead IIa2 of the outlet pipe 12; adjusting the second degree of freedom: the movable sleeve 2 is held, and then the outlet connector 4 is manually broken, so that the outlet connector 4 can be clamped into the guide groove 3c or separated from the guide groove 3c, namely, the included angle between the axial line Ia1 of the outlet connector 4 and the axial line IIa2 of the outlet pipe 12 can be changed.

When the first degree of freedom of the outlet connector 4 needs to be locked, the locking sleeve 7 can be rotated, so that the rubber ring 71 of the locking sleeve 7 tightly abuts against the inner side end surface of the movable sleeve 2, and the movable sleeve 2 is locked by friction force, so that the movable sleeve cannot rotate around the axis of the movable sleeve. When the second degree of freedom of the outlet connector 4 needs to be locked, the screwing parts 82 of the two locking buttons 8 can be pushed downwards by hand to separate the pressing plate 81 from the magnetic ring 92, and then the threaded columns 83 of the two locking buttons 8 are screwed into the corresponding threaded counter bores 433 respectively, so that the second degree of freedom of the outlet connector 4 can be locked.

When the three-way valve is installed, if the situation that the installation is limited or the downstream pipeline is inconvenient to connect after the installation is met, the orientation of the outlet connector 4 can be changed by adjusting the two degrees of freedom of the outlet connector 4, so that the valve can be smoothly installed or the downstream pipeline can be smoothly connected with the outlet connector 4. For example, as shown in fig. 14, when the three-way valve is installed and the distance between the left side of the three-way valve and the wall b is relatively close, if a conventional three-way valve is used, the left side outlet connector is very troublesome to connect with the downstream pipeline, and the downstream pipeline needs to be grooved on the wall b or an L-shaped adapter is connected to draw the pipeline out in a reversing manner, but if the three-way valve of this embodiment is adopted, the angle of the outlet connector 4 can be adjusted, the second degree of freedom of the outlet connector 4 is adjusted first, so that the outlet connector 4 is clamped into the guide groove 3c, then the first degree of freedom of the outlet connector is adjusted, the movable sleeve 2 is rotated, so that the orientation of the outlet connector 4 is changed, and then the downstream pipeline can be conveniently and smoothly connected with the outlet connector 4.

In particular, since the two degrees of freedom of the outlet connector 4 can be locked by the locking sleeve 7 and the locking knob 8, respectively, the outlet connector 4 can be locked if connected with a non-rigid downstream pipeline (such as a woven pipe), so that the outlet connector 4 can not shake or swing angularly in the subsequent use process, and the situation that connection looseness or breakage caused by repeated bending can be avoided in the long-term use in the background art can be avoided. Of course, if the outlet connection 4 is connected to a rigid downstream line (e.g. a steel pipe) which is fixed, the two degrees of freedom described above may not be locked, or only the first degree of freedom may be locked, and the second degree of freedom may not be locked.

That is, after the three-way valve of the present embodiment is installed, the angle of the outlet connector 4 can be adjusted according to the actual situation, the movable sleeve 2 is generally held firstly during the adjustment process, then the rod 42 of the outlet connector 4 is broken to adjust the second degree of freedom, that is, the outlet connector 4 is rotated around the axis z1 of the cylindrical groove 3e (see fig. 4), then the movable sleeve 2 can be rotated to make the outlet connector 4 rotate around the axis IIa2 of the outlet pipe 12 (see fig. 3) according to the situation, and the orientation of the outlet connector 4 is changed; after the adjustment, the first degree of freedom and the second degree of freedom of the outlet connector 4 can be locked through the locking sleeve 7 and the locking button 8 respectively, so that the outlet connector 4 can be stabilized at the adjusted angle.

Of the two degrees of freedom, the second degree of freedom has an adjustment range of 90 ° and the first degree of freedom has an adjustment range of 360 °.

It can be seen that in this embodiment, the outlet connector 4 has better flexibility, large adjustment range, and the angle of the outlet connector 4 can be locked after adjustment, so the three-way valve of this embodiment has wider applicability.

Example 2:

the present embodiment provides a structure capable of locking the adjustment angle of the valve outlet connector, one end of the outlet connector 4 is a ball 41 and is embedded in the spherical groove 3a of a plug 3, and the outlet connector 4 can realize the angle adjustment (i.e. realize the adjustment of the second degree of freedom in embodiment 1) by means of the rotation of the ball 41 in the spherical groove 3 a;

the outlet joint 4 further comprises two limiting columns 43, the two limiting columns 43 are respectively connected to two sides of the spherical body 41, a partition plate 431 is arranged in the limiting columns 43, a cavity 432 is arranged on one side, close to the spherical body 41, of the partition plate 431, a threaded counter bore 433 is arranged on one side, far away from the spherical body 41, of the partition plate 431, the cavity 432 is communicated with the inner cavity of the spherical body 41, and a circle of grid holes 434 are formed in the outer wall of the cavity 432;

The limiting columns 43 are provided with locking buttons 8, the number of the locking buttons 8 is consistent with that of the limiting columns 43, each locking button 8 is matched with each limiting column 43 one to one, a pressing plate 81 is arranged in the middle of each locking button 8, one side of each pressing plate 81 is provided with a screwing part 82, the other side of each pressing plate 81 is provided with a threaded column 83, and the threaded columns 83 are matched with threaded counter bores 433 of the limiting columns 43;

when the two threaded posts 83 are screwed into the two threaded counter bores 433, respectively, the two pressing plates 81 are pressed against a specific surface (i.e., the stepped surface 231 in embodiment 1) to lock the degree of freedom of rotation of the limiting post 43 about its own axis, thereby achieving the purpose of locking the adjustment angle of the outlet joint 4.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A valve, comprising:

a valve body (1), the valve body (1) comprising an inlet fitting (11), an outlet tube (12) and a valve cartridge (13); wherein, the valve core (13) controls the on-off relation between the inlet joint (11) and the outlet pipe (12) through the movement of the valve core;

The inner side of the movable sleeve (2) is sleeved on the outlet pipe (12), the movable sleeve (2) can rotate around the axis of the movable sleeve (2) relative to the outlet pipe (12), and a gap between the movable sleeve (2) and the outlet pipe (12) is sealed;

the plug body (3) is made of elastic materials, the plug body (3) is plugged into the outer end side of the movable sleeve (2), and a gap between the outer wall of the plug body (3) and the inner wall of the movable sleeve (2) is sealed;

an outlet connector (4), wherein one end of the outlet connector (4) is embedded in the plug body (3), and the other end extends out of the plug body (3); the outlet joint (4) has two adjustable degrees of freedom, namely a first degree of freedom and a second degree of freedom, wherein the first degree of freedom is that the movable sleeve (2) rotates around the axis II (a 2) of the outlet pipe (12), and the second degree of freedom is that the axis I (a 1) of the outlet joint (4) changes in angle relative to the axis II (a 2) of the outlet pipe (12);

the locking sleeve (7) is sleeved on the outlet pipe (12); the locking sleeve (7) limits or releases the first degree of freedom of the outlet fitting (4) by moving in the axial direction of the outlet tube (12);

A locking button (8) arranged on the movable sleeve (2); the locking button (8) restricts or releases the second degree of freedom of the outlet fitting (4) by moving in the radial direction of the movable sleeve (2).

2. A valve according to claim 1, characterized in that the outer wall of the outlet pipe (12) is provided with a section of external thread (121);

the inner wall of the locking sleeve (7) is provided with an internal thread, the locking sleeve (7) is screwed on an external thread (121) of the outlet pipe (12) through the internal thread, and one end of the locking sleeve (7) facing the movable sleeve (2) is provided with a circle of rubber ring (71);

when the locking sleeve (7) moves along the axial direction of the outlet pipe (12) and close to the movable sleeve (2) through the matching of the internal thread and the external thread (121), and the locking sleeve (7) moves to the maximum extent, the rubber ring (71) can tightly prop against the inner side end surface of the movable sleeve (2) so as to limit the rotation of the movable sleeve (2) by utilizing the friction force formed by extrusion.

3. A valve according to claim 2, characterized in that the outer wall of the locking sleeve (7) is in the shape of a regular hexagon.

4. A valve according to claim 1, characterized in that the outer wall of the movable sleeve (2) is provided with two stepped holes (23), the two stepped holes (23) are arranged in opposite directions, the diameter of the inner side of the stepped hole (23) is small, and the diameter of the outer side is large;

The plug body (3) is provided with a spherical groove (3 a), a cylindrical groove (3 e), a fluid channel (3 b) and a guide groove (3 c); the spherical groove (3 a) is positioned in the middle of the plug body (3), and the spherical groove (3 a) is communicated with the outer end surface of the plug body (3) through a communication hole (3 d); the number of the cylindrical grooves (3 e) is two and the cylindrical grooves are respectively communicated with two sides of the spherical groove (3 a), the axial leads of the two cylindrical grooves (3 e) are collinear and pass through the spherical center of the spherical groove (3 a), and meanwhile, the axial lead of the cylindrical groove (3 e) is also collinear with the axial lead of the stepped hole (23); the number of the fluid channels (3 b) is two, the initial ends of the two fluid channels (3 b) are respectively provided with an opening (3 ba) at the inner end surface of the plug body (3), and the tail ends of the two fluid channels are respectively communicated with the two cylindrical grooves (3 e); the guide groove (3 c) is a sinking groove formed on the outer end surface of the plug body (3), the guide groove (3 c) extends along the radial direction of the plug body (3), one end of the guide groove (3 c) is communicated with the spherical groove (3 a), the other end of the guide groove extends to the side wall of the plug body (3), and meanwhile, the extending direction of the guide groove (3 c) is mutually perpendicular to the axial lead of the cylindrical groove (3 e) in three-dimensional space;

the outlet joint (4) comprises a spheroid (41), a rod body (42) and a limit column (43); the spheroid (41) is embedded and wrapped in the spherical groove (3 a) of the plug body (3); the rod body (42) extends out of the stopper body (3) after passing through the communication hole (3 d), and the outer diameter of the rod body (42) is smaller than the inner diameter of the communication hole (3 d) and is also smaller than the width of the guide groove (3 c); the two limiting columns (43) are respectively connected to two sides of the spheroid (41), meanwhile, the two limiting columns (43) are respectively embedded into the two cylindrical grooves (3 e), a partition plate (431) is arranged in the limiting columns (43), a cavity (432) is arranged on one side, close to the spheroid (41), of the partition plate (431), a threaded counter bore (433) is arranged on one side, far away from the spheroid (41), of the partition plate (431), the cavity (432) is communicated with the inner cavity of the spheroid (41), and a circle of grid holes (434) are formed in the side wall of the cavity (432);

The number of the locking buttons (8) is consistent with that of the limiting columns (43), and each locking button (8) is matched with each limiting column (43) one to one; the middle part of locking button (8) is equipped with a clamp plate (81), and one side of clamp plate (81) is for twisting portion (82), and the opposite side is threaded post (83), this threaded post (83) with threaded counter bore (433) phase-match of spacing post (43), when threaded post (83) are twisted completely in threaded counter bore (433), clamp plate (81) support tightly this moment on step face (231) of shoulder hole (23).

5. The valve according to claim 4, wherein the locking button (8) is further provided with a limiting cover plate (91), the limiting cover plate (91) is covered and fixed at the opening of the stepped hole (23), a magnetic ring (92) is fixed at the inner side of the limiting cover plate (91), and a round hole (9 a) is arranged at the centers of the limiting cover plate (91) and the magnetic ring (92);

the pressing plate (81) of the locking button (8) is made of ferromagnetic materials, the pressing plate (81) is positioned in the stepped hole (23) at the inner side of the magnetic ring (92), and the screwing part (82) of the screwing button (8) penetrates through the round hole (9 a) from inside to outside and then extends out of the limit cover plate (91); and, when the pressing plate (81) is adsorbed on the magnetic ring (92), the threaded column (83) and the threaded counter bore (433) of the limit column (43) are separated from each other at this time.

6. A valve according to claim 4, characterized in that the movable sleeve (2) is provided with a recess (21) on the outer side in the radial direction of the guide groove (3 c), the profile of the recess (21) corresponding to the profile of the guide groove (3 c).

7. A valve according to claim 4, wherein the plug body (3) comprises an inner plug (31) and a plug cover (32); the inner plug (31) is plugged into the inner cavity of the movable sleeve (2); the plug cover (32) is covered on the outer end surface of the movable sleeve (2), and the inner end surface of the plug cover (32) and the outer end surface of the inner plug (31) are mutually abutted and tightly attached;

the spherical groove (3 a) is formed by an inner plug (31) and a plug cover (32) which are spliced together, namely, one part of the spherical groove (3 a) is formed on the inner plug (31), and the other part is formed on the plug cover (32);

the cylindrical groove (3 e) is also formed by an inner plug (31) and a plug cover (32) which are spliced together, namely, one part of the cylindrical groove (3 e) is formed on the inner plug (31) and the other part is formed on the plug cover (32);

the fluid passage (3 b) is provided in the inner plug (31), and the fluid passage (3 b) extends in the axial direction of the inner plug (31);

the guide groove (3 c) is also formed by the inner plug (31) and the plug cover (32) which are spliced together, namely, one part of the guide groove (3 c) is formed on the inner plug (31), and the other part is formed on the plug cover (32).

8. A valve according to claim 7, wherein the inner plug (31) and the plug cover (32) are made of rubber material.

9. A valve according to claim 1, characterized in that the movable sleeve (2) is sleeved on the outer wall of the outlet pipe (12) by means of two bearings (51, 52), a sealing ring (6) being arranged between the two bearings (51, 52) for sealing the gap between the movable sleeve (2) and the outlet pipe (12).

10. An angle adjusting structure capable of locking an outlet joint of a valve, one end of the outlet joint (4) is a spheroid (41) and is embedded in a spheroid groove (3 a) of a plug body (3), and the outlet joint (4) can realize the angle adjustment by means of the rotation of the spheroid (41) in the spheroid groove (3 a), and the angle adjusting structure is characterized in that:

the outlet joint (4) further comprises two limit posts (43), the two limit posts (43) are respectively connected to two sides of the spheroid (41), a partition plate (431) is arranged in the limit posts (43), a cavity (432) is arranged on one side, close to the spheroid (41), of the partition plate (431), a threaded counter bore (433) is arranged on one side, far away from the spheroid (41), of the partition plate, the cavity (432) is communicated with the inner cavity of the spheroid (41), and a circle of grid holes (434) are formed in the outer wall of the cavity (432);

The limiting columns (43) are provided with locking buttons (8), the number of the locking buttons (8) is consistent with that of the limiting columns (43), each locking button (8) is matched with each limiting column (43) one by one, a pressing plate (81) is arranged in the middle of each locking button (8), one side of each pressing plate (81) is provided with a screwing part (82), the other side of each pressing plate is provided with a threaded column (83), and the threaded columns (83) are matched with threaded counter bores (433) of the limiting columns (43);

when the threaded column (83) is completely screwed into the threaded counter bore (433), the pressing plate (81) is abutted against a specific surface, and the degree of freedom of rotation of the limiting column (43) around the axis of the limiting column is locked, so that the adjusting angle of the outlet joint (4) is locked.