CN213839675U

CN213839675U - Three-way reversing valve

Info

Publication number: CN213839675U
Application number: CN202022996050.3U
Authority: CN
Inventors: 沈志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-07-30
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a three-way reversing valve, including case and valve body, the valve body includes the case chamber, is responsible for and two branch pipes, is provided with the valve port that advances that is linked together with the person in charge on the chamber wall in case chamber and the play valve port that is linked together with two branch pipes one-to-ones, and the case is columniform mandrel structure, and the case rotationally inlays even in the case intracavity and along with rotating the single or two play valve ports of shutoff simultaneously of shutoff respectively. The utility model provides a tee bend switching-over valve, an operation is realized to the management of two branches, and turn-off or only have an one-way branch road to switch on at every turn, and the switching-over is sensitive, and is easy and simple to handle, practices thrift the space.

Description

Three-way reversing valve

Technical Field

The utility model relates to the technical field of valves, more specifically say, relate to a tee bend switching-over valve.

Background

When a diversion or a change-over is required in the transportation of liquid or gas, a tee is usually used to extend two branch lines from a main line and connect two valves to the two branch lines. When the reversing is needed and only one branch is conducted, both valves need to be operated, the operation is complicated, and the reversing is delayed; and this kind of switching-over structure, the installation occupation space is big, is unfavorable for the brief design that integrates.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, convenient operation's tee bend switching-over valve, an operation is realized to the management of two branches, and turn-off or only have an one-way branch road to switch on at every turn, and the switching-over is sensitive, and is easy and simple to handle, practices thrift the space.

In order to realize the above purpose, the utility model provides a pair of three-way reversing valve, including case and valve body, the valve body includes the case chamber, is responsible for and two branch pipes, be provided with on the chamber wall in case chamber with be responsible for the business turn over valve port that is linked together and with two the play valve port that the branch pipe one-to-one is linked together, the case is columniform mandrel structure, the case rotationally inlays even the case intracavity is single or the shutoff is two simultaneously along with rotating the shutoff respectively the play valve port.

Preferably, the side wall of the valve core located in the valve core cavity is used for abutting against the cavity wall of the valve core cavity, an inner cavity communicated with the valve inlet port is arranged in the valve core, and a communication hole communicated with the inner cavity is arranged on the side wall of the valve core and used for communicating with the valve outlet port.

Preferably, a rotary positioning structure is arranged between the valve core and the valve body.

Preferably, the side wall of the valve core is provided with a clamping steel ball which is elastic and is in telescopic connection, and the side wall of the valve core cavity is provided with a positioning clamping groove which is used for clamping with the clamping steel ball.

Preferably, the valve core is provided with a connecting groove, a compression spring is arranged in the connecting groove, and the clamping steel ball is connected with the compression spring and is rotatably embedded at the notch of the connecting groove.

Preferably, the positioning clamping grooves are provided with three and are arranged in one-to-one correspondence with the inlet valve ports and the two outlet valve ports.

Preferably, the depth direction of the positioning clamping groove is consistent with the radial direction of the valve core cavity, and two side walls of the positioning clamping groove are inclined gradually close to each other along the depth direction from the notch to the groove bottom.

Preferably, the main pipe is connected to the bottom end of the valve core cavity, the two branch pipes are respectively connected to the side wall of the valve core cavity and symmetrically arranged, the bottom end of the inner cavity is open, and a sealing gasket is arranged between the inner cavity and the valve inlet.

Preferably, the valve further comprises a valve cover connected with the valve body and used for covering the valve core cavity, the valve core is cylindrical, one end of the valve core extends into the valve core cavity, and the other end of the valve core penetrates through the valve cover to form a knob.

Preferably, the other end of the valve core is provided with a screwing plane extending along the axial direction.

The utility model provides a technical scheme, the case inlays and links in the case intracavity of valve body to through the pivoted position change come the shutoff respectively single or two go out the valve port, realize whole shutoff or the switching that arbitrary one way switched on, easy and simple to handle, only realize the management to two branch roads through a rotation operation, either turn off or ensure only one-way branch road at every turn to switch on, the switching-over is sensitive; and the whole three-way reversing valve has the advantages of simple structure, small volume and overall space saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a three-way directional control valve according to an embodiment of the present invention;

FIG. 2 is a schematic overall view of the three-way directional control valve according to the embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of the three-way directional valve in the embodiment of the present invention;

fig. 4 is a schematic view of the connection between the valve core and the valve body in the embodiment of the present invention.

In fig. 1-4:

1. a valve body; 11. a spool cavity; 12. a main pipe; 13. a branch pipe; 14. positioning the clamping groove; 2. a valve core; 21. a thick mandrel portion; 211. a communicating hole; 212. an inner cavity; 22. an end table portion; 221. connecting grooves; 222. a compression spring; 223. a clamping steel ball; 23. screwing the thin shaft portion; 231. screwing the plane; 3. a valve cover; 4. a gasket is provided.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The purpose of this embodiment is to provide a simple structure, convenient operation's tee bend switching-over valve, and an operation realizes the management to two branches, and the turn-off or only have one-way branch to switch on at every turn, and the switching-over is sensitive, and is easy and simple to handle, practices thrift the space.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-4, the three-way directional control valve provided in this embodiment includes a valve core 2 and a valve body 1, where the valve body 1 includes a main body, and a main pipe 12 and two branch pipes 13 both connected to the main body, a valve core cavity 11 into which the valve core 2 extends is provided in the main body, a valve inlet port communicated with the main pipe 12 and a valve outlet port communicated with the two branch pipes 13 in a one-to-one correspondence are provided on a side wall of the valve core cavity 11, the valve core 2 may be in a cylindrical core shaft structure, and the valve core 2 extends into the valve core cavity 11 and is rotatably connected to the valve core cavity 11, and the position of the valve core 2 can be changed along with rotation to respectively plug a single valve outlet port or simultaneously plug two valve outlet ports, so as to implement a function of integrally turning off or turning on any one branch, and ensure that only one branch is turned on and the other branch is turned off at a time in a conducting state. According to the arrangement, the two branches are managed through only one rotation operation, and the two branches are either switched off or only one unidirectional branch is ensured to be switched on each time, so that the reversing is sensitive; and the whole three-way reversing valve has the advantages of simple structure, small volume and overall space saving.

Specifically, in order to facilitate the rotation reversing, the main pipe 12 of the valve body 1 is connected to the bottom end of the valve core cavity 11, the two branch pipes 13 are respectively connected to the side walls of the valve core cavity 11, and the two branch pipes 13 are preferably symmetrically arranged. One end of the valve core 2 is positioned in the valve core cavity 11, and the other end is positioned outside the valve body 1. In this embodiment, the three-way reversing valve further comprises a valve cover 3, the valve cover 3 is connected with the valve body 1, and covers the valve core cavity 11 and fixes the valve core 2 in the valve core cavity 11; the valve core 2 can be in a stepped shaft structure along the axial direction and comprises a thick core shaft part 21 positioned in the valve core cavity 11, an end platform part 22 in the middle and a thin screwed shaft part 23 penetrating through the valve cover 3; the valve core cavity 11 is correspondingly provided with a stepped hole to accommodate the thick core shaft part 21 and the end platform part 22, and the valve cover 3 abuts against the end platform part 22 to fix the thick core shaft part 21 in the valve core cavity 11. The turning thin shaft portion 23 of the spool 2 penetrates the bonnet 3, is located outside the bonnet 3, and forms a knob, and by turning this end, the rotation of the spool 2 can be easily achieved.

The valve core 2 is turned to realize one-way connection or integral disconnection, the end table portion 22 of the valve core 2 may seal and seal the cavity opening of the valve core cavity 11, and the sidewall of the thick core shaft portion 21 of the valve core 2 is provided with a plug for plugging the valve outlet. When liquid enters the valve core cavity 11 from the main pipe 12 through the valve inlet port, any one valve outlet port is selectively blocked and the branch of the other valve outlet port is conducted along with rotation.

Alternatively, as shown in fig. 1 and 2, in the present embodiment, the thick spool portion 21 is located in the spool chamber 11, and the cross-sectional dimension matches with the cross-sectional dimension of the spool chamber 11, so that the shaft side wall and the inner cavity 212 of the spool chamber 11 are abutted, thereby blocking the valve port. Meanwhile, the thick mandrel part 21 is provided with an inner cavity 212, the inner cavity 212 can extend along the axial direction, the top end of the inner cavity 212 is closed, the bottom end is in an open shape and is communicated with the valve inlet port, so that liquid enters the inner cavity 212 through the valve inlet port; meanwhile, the side wall of the thick spool part 21 is provided with a communication hole 211 communicated with the inner cavity 212, that is, one end of the communication hole 211 is communicated with the inner cavity 212, and the orifice of the other end is positioned on the side wall of the spool 2. Along with the rotation of the valve core 2, the communication hole 211 is used for being aligned and communicated with a certain valve outlet port, and the other valve outlet port is blocked and cut off by the side wall of the valve core 2, so that the conduction of any branch pipe 13 is realized; if the communication hole 211 rotates to a position between the two valve outlet ports, the two valve outlet ports are both cut off, and the communication hole 211 is also plugged by the inner cavity 212 wall of the valve core cavity 11, so that the integral shutoff is realized.

As shown in fig. 2 and 3, the valve cover 3 fixes the valve core 2 in the valve core cavity 11 by pressing the end platform portion 22 of the valve core 2, the thick core shaft portion 21 abuts against the bottom wall of the valve core cavity 11, the inner cavity 212 is directly connected with the valve inlet port, and a sealing gasket 4 is arranged between the inner cavity 212 and the valve inlet port to prevent liquid from leaking. The sealing washer 4 surrounds the outside of the valve inlet port, and a sealing groove for embedding the sealing washer 4 is arranged on the bottom wall of the valve core cavity 11.

In order to facilitate the valve core 2 to be screwed in place, a rotating positioning structure is arranged between the valve core 2 and the valve body 1, so that the valve core 2 can be intuitively and accurately rotated to a required reversing or turning-off position.

As shown in fig. 3 and 4, the end table portion 22 of the valve body 2 is provided with a connection groove 221, a compression spring 222 is disposed in the connection groove 221, and a detent steel ball 223 is connected to a top end of the compression spring 222 and rotatably fitted at a notch of the connection groove 221. Thus, the clamping steel ball 223 is elastically and telescopically connected to the side wall of the valve core 2. Meanwhile, a positioning clamping groove 14 used for being clamped with the clamping steel ball 223 is arranged on the side wall of the valve core cavity 11. There may be three positioning card slots 14, which correspond to the overall turn-off position and the two branch turn-on positions, respectively. Specifically, the three positioning clamp grooves 14 are distributed at circumferential positions corresponding to the inlet valve ports and the two outlet valve ports one to one, and the clamping steel balls 223 are arranged corresponding to the communication holes 211. When the valve core 2 rotates, the blocking steel ball 223 is pressed against the inner wall of the valve core cavity 11 by the jacking force of the compression spring 222, when the valve core 2 rotates to the corresponding positioning clamping groove 14, the blocking steel ball 223 is clamped in the positioning clamping groove 14, and at the moment, the valve core 2 rotates in place, so that the conduction or the reversing or the integral turn-off of a certain branch is realized. When the state needs to be switched, the valve core 2 is continuously rotated to the positions of the other corresponding positioning clamping grooves 14.

In a preferred embodiment of this embodiment, the depth direction of the positioning groove 14 is the same as the radial direction of the valve core cavity 11, and two side walls of the positioning groove 14 are inclined gradually close to each other along the depth direction from the notch to the groove bottom. So set up, be convenient for screens steel ball 223 to change over into and roll out.

As shown in fig. 4, the screwing thin shaft part 23 may be provided with a screwing plane 231 extending along the axial direction so as to apply a force to rotate the valve core 2, and at the same time, the screwing plane 231 may also visually display the rotation position of the valve core 2, which visually indicates whether the valve core is in the off state or in the on state of one branch.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the invention comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The three-way reversing valve is characterized by comprising a valve core (2) and a valve body (1), wherein the valve body (1) comprises a valve core cavity (11), a main pipe (12) and two branch pipes (13), a valve inlet communicated with the main pipe (12) and a valve outlet communicated with the two branch pipes (13) in a one-to-one correspondence manner are arranged on the cavity wall of the valve core cavity (11), the valve core (2) is of a cylindrical core shaft structure, and the valve core (2) is rotatably embedded in the valve core cavity (11) and is respectively plugged singly or simultaneously along with rotation.

2. The three-way reversing valve according to claim 1, wherein the side wall of the valve core (2) located in the valve core cavity (11) is used for abutting against the cavity wall of the valve core cavity (11), an inner cavity (212) communicated with the valve inlet port is arranged in the valve core (2), a communication hole (211) communicated with the inner cavity (212) is arranged on the side wall of the valve core (2), and the communication hole (211) is used for being communicated with the valve outlet port.

3. The three-way reversing valve according to claim 2, characterized in that a rotational positioning structure is arranged between the valve core (2) and the valve body (1).

4. The three-way reversing valve according to claim 3, wherein a clamping steel ball (223) which is elastic and is telescopically connected is arranged on the side wall of the valve core (2), and a positioning clamping groove (14) which is used for clamping with the clamping steel ball (223) is arranged on the side wall of the valve core cavity (11).

5. The three-way reversing valve according to claim 4, wherein a connecting groove (221) is formed in the valve core (2), a compression spring (222) is arranged in the connecting groove (221), and the blocking steel ball (223) is connected with the compression spring (222) and is rotatably embedded in a notch of the connecting groove (221).

6. The three-way reversing valve according to claim 5, wherein the positioning clamping grooves (14) are provided in three and are arranged in one-to-one correspondence with the inlet valve ports and the two outlet valve ports.

7. The three-way reversing valve according to claim 4, wherein the depth direction of the positioning clamping groove (14) is consistent with the radial direction of the valve core cavity (11), and two side walls of the positioning clamping groove (14) are gradually inclined to each other along the depth direction from the notch to the groove bottom.

8. The three-way reversing valve according to claim 2, wherein the main pipe (12) is connected to the bottom end of the valve core cavity (11), the two branch pipes (13) are respectively connected to the side wall of the valve core cavity (11) and are symmetrically arranged, the bottom end of the inner cavity (212) is open, and a sealing gasket (4) is arranged between the inner cavity (212) and the valve inlet port.

9. The three-way reversing valve according to claim 3, further comprising a valve cover (3) connected with the valve body (1) and used for covering the valve core cavity (11), wherein one end of the valve core (2) extends into the valve core cavity (11), and the other end of the valve core passes through the valve cover (3) to form a knob.

10. Three-way reversing valve according to claim 9, characterized in that the other end of the spool (2) is provided with a screwing plane (231) extending in the axial direction.