CN221097553U - Reversing valve - Google Patents

Abstract

The utility model discloses a reversing valve, which comprises at least two first pipelines, wherein the first pipelines are used for medium inflow; at least one second pipeline for medium outflow, each second pipeline corresponding to at least two first pipelines; the driving structure drives the second pipeline to move between different first pipelines, and the second pipeline can be communicated with any one corresponding first pipeline, so that reversing is realized. The utility model utilizes the driving structure to drive the second pipeline to move between different first pipelines, and the second pipeline can be communicated with any one corresponding first pipeline, so that the reversing is realized.

Description

Reversing valve

Technical Field

The utility model relates to the field of valves, in particular to a reversing valve.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling the parameters of the conveying medium. The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The reversing valve is a directional control valve with more than two inlets and outlets, and is a valve for realizing medium communication, cutting and reversing. In the prior art, the direction control valve generally depends on the relative movement of the valve core and the valve body, and the reversing valve needs to be provided with different flow passages and valve cores in the valve body, and as all flow passages and valve cores need to be integrated in one valve body, the more the flow passages are, the higher the precision of the processing technology and assembly is, and the reversing valve has great limitation.

Disclosure of utility model

In order to overcome at least one defect of the prior art, the utility model provides the reversing valve, wherein the driving structure is used for driving the second pipeline to move between different first pipelines, the second pipeline can be communicated with any one corresponding first pipeline, so that reversing is realized, and the first pipeline and the second pipeline are mutually independent and do not need to be integrated in one valve body, so that the requirements on the processing technology and the assembly precision are lower, the number of pipelines for reversing is not limited, and the reversing valve has larger adaptability.

The utility model adopts the technical proposal for solving the problems that:

A reversing valve comprising:

At least two first pipes for inflow of a medium;

At least one second pipeline for medium outflow, each second pipeline corresponding to at least two first pipelines;

The driving structure drives the second pipeline to move between different first pipelines, and the second pipeline can be communicated with any one corresponding first pipeline, so that reversing is realized.

In a preferred embodiment, the second ducts are laterally provided with a shielding portion which shields the outlets of the respective remaining first ducts when the second duct is in communication with one of the first ducts.

In a preferred embodiment, the driving structure comprises a motor and a linkage mechanism, the motor drives the linkage mechanism to move, and the linkage mechanism drives the second pipeline to move.

In a preferred embodiment, the linkage comprises a slider-crank mechanism, the input of which is connected to the output of the motor, and the output of which is connected to the second conduit.

In a preferred embodiment, the first duct of each second duct is arranged along a first direction.

In a preferred embodiment, the crank slide mechanism comprises a slide block and a slide rail, the slide block is matched with the slide rail, the slide block moves along the slide rail, the second pipeline is arranged on the slide block, the second pipeline penetrates through the slide block, a shielding part is formed at the part of the slide block protruding out of the outer edge of the second pipeline, the slide rail is arranged along the second direction, and the first direction and the second direction are the same.

In a preferred embodiment, the crank slider mechanism further comprises a rotating shaft and a crank, one end of the rotating shaft is fixedly connected with the output shaft of the motor, the other end of the rotating shaft is fixedly connected with one end of the crank, a first sliding groove is formed in the other end of the crank, a sliding pin is fixedly connected to the sliding block, and the sliding pin is matched with the first sliding groove and movably connected with the first sliding groove.

In a preferred embodiment, the device further comprises a casing, the first pipeline, the second pipeline and the driving structure are all connected with the casing, a second chute is arranged on the casing, the second chute is arranged along a third direction, the third direction is the same as the first direction and the second direction, the second pipeline moves along the second chute, and the length of the second chute is greater than or equal to the distance between the first pipeline and the last pipeline in the first direction.

In a preferred embodiment, the motor is laterally provided with at least two limit switches, the limit switches are used for closing the motor, the linkage mechanism comprises a limit shaft, one end of the limit shaft is fixedly connected with the output shaft of the motor, and the other end of the limit shaft corresponds to one of the limit switches to close the motor.

In a preferred embodiment, the first conduit has a sealing ring at the interface towards the second conduit and/or the second conduit has a sealing ring at the interface towards the first conduit.

In summary, the utility model has the following technical effects:

1. The utility model utilizes the driving structure to drive the second pipeline to move between different first pipelines, and the second pipeline can be communicated with any one corresponding first pipeline, so that the reversing is realized.

2. The utility model utilizes the motor and the linkage mechanism, and the motor drives the linkage mechanism to move, thereby driving the second pipeline to move, and the operation is stable and easy to control.

3. The crank sliding block mechanism comprises a sliding block and a sliding rail, wherein the sliding block is matched with the sliding rail, and the second pipeline is communicated with different first pipelines through the movement of the sliding block on the sliding rail, so that reversing is realized. Because the direction of medium business turn over first pipeline, second pipeline is mutually perpendicular with the direction of slider motion, compare in the direction of medium business turn over first pipeline, second pipeline and slider motion the same, the medium in the first pipeline is more difficult to jack-up the slider, and further the medium in the first pipeline is more difficult to jack-up shielding part to effectively improve the closure of corresponding other first pipelines.

4. The sliding rail is used for limiting the sliding block, and the second sliding groove is used for limiting the second pipeline, so that the stroke of the second pipeline is further limited.

5. The utility model uses the limit switch to close the motor, when the other end of the limit shaft corresponds to one of the limit switches to close the motor, thereby controlling the stroke of the second pipeline, facilitating the alignment and communication of the second pipeline and the corresponding first pipeline and avoiding the medium leakage caused by the dislocation of the second pipeline and the corresponding first pipeline.

Drawings

Fig. 1 is a schematic view of the external structure of the present utility model.

Fig. 2 is a schematic view of an external structure according to another view of the present utility model.

Fig. 3 is a schematic top view of the present utility model.

FIG. 4 is a schematic cross-sectional view taken in the direction of FIG. 3A-A of the present utility model.

Fig. 5 is an exploded view of fig. 1 of the present utility model.

Fig. 6 is an exploded view of the present utility model from another perspective of fig. 1.

Fig. 7 is a schematic view of the linkage mechanism of the present utility model.

Fig. 8 is a schematic view of another view of the linkage mechanism of the present utility model.

Wherein the reference numerals have the following meanings:

10. The device comprises a first pipeline, 20, a second pipeline, 30, a driving structure, 31, a motor, 32, a crank-slider mechanism, 321, a slider, 322, a slide rail, 323, a rotating shaft, 324, a crank, 325, a first chute, 326, a sliding pin, 327, a limiting shaft, 40, a shielding part, 50, a casing, 60, a second chute, 70, a limiting switch, 80, a sealing ring, a first direction, b, a second direction, c and a third direction.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1-8, the present utility model discloses a reversing valve, comprising: at least two first pipes 10, the first pipes 10 being for inflow of a medium; at least one second duct 20, the second ducts 20 being for the outflow of the medium, each second duct 20 corresponding to at least two first ducts 10; the driving structure 30, the driving structure 30 drives the second pipeline 20 to move between different first pipelines 10, and the second pipeline 20 can be communicated with any corresponding first pipeline 10, so that reversing is realized.

It will be appreciated that the first conduit 10 and the second conduit 20 each have an inlet and an outlet, which are both interfaces, to facilitate the inflow or outflow of a medium.

Thus, each second pipe 20 may correspond to two first pipes 10, three first pipes 10 or four first pipes 10 or even more, the second pipes 20 moving between a plurality of different first pipes 10, enabling a plurality of different media to be switched; each second pipe 20 forms a reversing unit with the corresponding first pipe 10, and each reversing valve comprises a plurality of reversing units, so that the reversing valve can be suitable for different application environments.

It will be appreciated that the medium flowing into the first conduit 10 may be water, steam, gas, oil, etc. and that when the second conduit 20 is in communication with the corresponding first conduit 10, the medium flows into the first conduit 10 and out of the second conduit 20. Taking water as an example, one of the first pipes 10 may be connected to a water tank, wherein the other first pipe 10 may be connected to municipal tap water, and is connected to a different first pipe 10 through a second pipe 20, thereby realizing different water from the second pipe 20, and thus realizing reversing.

Based on the structure, the driving structure 30 is utilized to drive the second pipeline 20 to move among different first pipelines 10, and the second pipeline 20 can be communicated with any one corresponding first pipeline 10, so that the reversing is realized, and the first pipeline 10 and the second pipeline 20 are mutually independent and do not need to be integrated in one valve body, so that the requirements on the processing technology and the assembly precision are lower, the number of pipelines for reversing is not limited, and the reversing valve has larger adaptability. And the second pipeline 20 from which the medium flows out is designed to be movable, and is communicated with different first pipelines 10 under the drive of the driving structure, so that the conception is ingenious and the switching is reliable.

In the present utility model, the second duct 20 is laterally provided with a shielding portion 40, and when the second duct 20 is communicated with one of the first ducts 10, the shielding portion 40 shields the outlets of the corresponding remaining first ducts 10, thereby closing the outlets of the corresponding remaining first ducts 10.

It will be appreciated that in order to close the outlets of the corresponding remaining first conduits 10, the dimensions of the shielding portion 40 need to be sufficiently large, i.e. the dimensions of the shielding portion 40 depend on the number of actual first conduits 10 and the arrangement gap, so as to be able to cover the outlets of the corresponding remaining first conduits 10. Wherein the corresponding remaining first conduits 10 refer to: among the first pipes 10 corresponding to the same second pipe 20, other first pipes 10 except for the first pipe 10 currently communicating with the second pipe 20.

Thereby, it is possible to avoid the problem that the corresponding remaining first pipes 10 are leaked due to lack of shielding when the second pipe 20 is communicated with one of the first pipes 10, and to realize closing of the corresponding remaining first pipes 10 while communicating the second pipe 20 with one of the first pipes 10. And, the shielding part 40 is designed at the lateral direction of the second pipeline 20, so that the shielding part 40 can move along with the second pipeline 20, and thus, when the second pipeline 20 is adapted to be communicated with different first pipelines 10, the rest first pipelines 10 are shielded and closed immediately. Specifically, the shielding portion 40 may be integrally formed with the side wall of the second pipe 20, or the shielding portion 40 is welded and fixed on the side wall of the second pipe 20, or the shielding portion 40 is connected and fixed with the side wall of the second pipe 20 by fastening or clamping. The specific connection is merely exemplary, and is not particularly limited.

In the present utility model, the driving structure 30 includes a motor 31 and a linkage mechanism, where the motor 31 drives the linkage mechanism to move, and the linkage mechanism drives the second pipe 20 to move.

Compared with the mode of directly and manually driving the linkage mechanism to move so as to realize the movement of the second pipeline 20, or compared with the mode of directly and manually driving the second pipeline 20 to move, the mode of driving the linkage mechanism by utilizing the motor 31 is labor-saving, stable in operation and easy to control.

In the utility model, the linkage mechanism comprises a crank block mechanism 32, the input end of the crank block mechanism 32 is connected with the output end of the motor 31, and the output end of the crank block mechanism 32 is connected with the second pipeline 20.

In the present utility model, the corresponding first duct 10 of each second duct 20 is arranged along the first direction.

In this embodiment, the linkage mechanism is designed into a crank block mechanism 32, so that the reciprocating motion of the second pipeline 20 can be realized, and the thickness of the linkage mechanism can be reduced, so that the occupied space of the reversing valve in the installation equipment is reduced, and the installation of the reversing valve in different use scenes is facilitated.

Specifically, the crank slider mechanism 32 includes a slider 321 and a slide rail 322, the slider 321 and the slide rail 322 are mutually matched, the slider 321 moves along the slide rail 322, the second pipe 20 is disposed on the slider 321, and the second pipe 20 penetrates the slider 321, a portion of the slider 321 protruding out of the outer edge of the second pipe 20 forms a shielding portion 40, the slide rail 322 is disposed along a second direction, and the first direction and the second direction are mutually parallel.

Thereby, through the movement of the sliding block 321 on the sliding rail 322, the communication between the second pipeline 20 and the different first pipelines 10 is realized, and the reversing is realized. Because the directions of the medium entering and exiting the first pipeline 10 and the second pipeline 20 are perpendicular to the moving direction of the sliding block 321, compared with the directions of the medium entering and exiting the first pipeline 10 and the second pipeline 20 are the same as the moving direction of the sliding block 321, the medium in the first pipeline 10 is more difficult to prop up the sliding block 321, and further the medium in the first pipeline 10 is more difficult to prop up the shielding part 40, so that the closing of the corresponding other first pipelines 10 is effectively improved.

In order to better prevent the problem of leakage of the medium from the first duct 10 which is not connected to the second duct 20, i.e. to avoid a gap between the shielding portion 40 and the first duct 10, the shielding portion 40 is tangential to the corresponding remaining first ducts 10, i.e. the interfaces of all the corresponding first ducts 10 towards the second duct 20 are flush with each other, in the same plane, in which the shielding portion 40 is also located.

It can be appreciated that the sliding block 321 is in sliding fit with the sliding rail 322, so as to ensure the stability of the relative movement of the two.

Specifically, the slide 321 may be integrally formed with the second pipe 20, or both may be integrally connected by a welding process or a screw assembly after being separately formed.

Based on the above structure, when the second duct 20 moves on the slide rail 322 along with the slider 321, the docking with the corresponding first duct 10 can be achieved, avoiding the situation that the first duct 10 cannot dock with the second duct 20 because the first duct 10 is not arranged within the movable stroke of the second duct 20.

More specifically, the crank slider mechanism 32 further includes a rotating shaft 323 and a crank 324, one end of the rotating shaft 323 is fixedly connected with the output shaft of the motor 31, the other end of the rotating shaft 323 is fixedly connected with one end of the crank 324, the other end of the crank 324 is provided with a first sliding groove 325, a sliding pin 326 is fixedly connected to the sliding block 321, and the sliding pin 326 is mutually matched with the first sliding groove 325 and movably connected.

The motor 31 rotates clockwise to drive the rotating shaft 323 and the crank 324 to rotate clockwise, and the sliding pin 326 moves along the first sliding groove 325 in a direction away from the rotating shaft 323, so that the sliding block 321 is driven to retract along the sliding rail 322; the motor 31 rotates anticlockwise, drives the rotating shaft 323 and the crank 324 to rotate anticlockwise, and the sliding pin 326 moves along the first sliding groove 325 towards the direction approaching the rotating shaft 323, so that the sliding block 321 is driven to advance along the sliding rail 322. Thus, the motor 31 may be a forward/reverse motor 31.

In the present utility model, the reversing valve further includes a casing 50, the first pipe 10, the second pipe 20 and the driving structure are all connected to the casing 50, the casing 50 is provided with a second chute 60, the second chute 60 is arranged along a third direction, the third direction is the same as the first direction and the second direction, the second pipe 20 moves along the second chute 60, and the length of the second chute 60 is greater than or equal to the distance between the first pipe 10 and the last first pipe 10 in the first direction. In this way, the second duct 20 moves along the second chute 60, thereby enabling the second duct 20 to communicate with the different first duct 10.

When the length of the second chute 60 is equal to the distance between the first and the last first pipelines 10 in the first direction, the second pipelines 20 can be communicated with different first pipelines 10 in the process of moving the second pipelines 20 in the second chute 60, so that medium switching is realized. Therefore, the utility model can realize the travel limit of the sliding block 321 through the sliding rail 322 and the second sliding groove 60.

In the utility model, at least two limit switches 70 are arranged on the lateral direction of the motor 31, the limit switches 70 are used for closing the motor 31, the linkage mechanism comprises a limit shaft 327, one end of the limit shaft 327 is fixedly connected with the output shaft of the motor 31, and the other end of the limit shaft 327 corresponds to one of the limit switches 70 to close the motor 31.

When each second pipeline 20 corresponds to two first pipelines 10, and limit switches 70 are respectively arranged on two sides of the motor 31, the number of the limit switches 70 is two at the moment, and when the second pipelines 20 move to be communicated with one of the first pipelines 10, the limit shaft 327 is contacted with one of the limit switches 70, and the motor 31 stops rotating; when the second pipe 20 moves to communicate with the other first pipe 10, the limit shaft 327 touches the other second limit switch 70, and the motor 31 stops rotating.

Taking the following of the limiting shaft 327 and the rotating shaft 323 as an example, the limiting shaft 327 is fixedly connected with the rotating shaft 323, and the limiting shaft 327 rotates along with the rotating shaft 323; when the motor 31 rotates clockwise, the rotating shaft 323, the crank 324 and the limiting shaft 327 are driven to rotate clockwise, the sliding pin 326 moves along the first sliding groove 325 in a direction away from the rotating shaft 323, so as to drive the sliding block 321 to retreat along the sliding rail 322 until the second pipeline 20 is communicated with one of the first pipelines 10, the limiting shaft 327 touches one of the limiting switches 70, and the motor 31 stops rotating; when the motor 31 rotates anticlockwise, the rotating shaft 323, the crank 324 and the limiting shaft 327 are driven to rotate anticlockwise, the sliding pin 326 moves along the first sliding groove 325 in a direction away from the rotating shaft 323, so as to drive the sliding block 321 to advance along the sliding rail 322 until the second pipeline 20 is communicated with the other first pipeline 10, the limiting shaft 327 contacts with the other limiting switch 70, and the motor 31 stops rotating.

Generally, a button or a switch for driving the motor 31 is provided on the casing 50, and the user activates the button or the switch for driving the motor 31, thereby activating the rotation of the motor 31. Of course, the button or switch may be located at any position to trigger the rotation of the motor 31.

The limit switch 70 is a touch type micro-switch, and the working principle thereof is the prior art and is not described herein. Of course, the limit switch 70 may also be another type of switch, such as a photoelectric switch, etc. By using the limit switch 70, the stroke control of the sliding block 321 can be realized, so that the alignment of the second pipeline 20 and the first pipeline 10 is controlled, the dislocation phenomenon of the second pipeline 20 and the first pipeline 10 which are communicated with each other is avoided, the connection of the second pipeline 20 and the first pipeline 10 through the maximum connection port can be ensured, and the flow of a medium is ensured.

In the present utility model, the interface of the first pipe 10 toward the second pipe 20 has a sealing ring 80, and/or the interface of the second pipe 20 toward the first pipe 10 has a sealing ring 80. By arranging the sealing ring 80 at the joint of the first pipeline 10 and the second pipeline 20, the joint of the first pipeline 10 and the second pipeline 20 can be sealed, leakage of medium from the joint of the first pipeline 10 and the second pipeline 20 is avoided, and the sealing performance is improved. The seal ring 80 may be made of rubber or silica gel, or other materials, so as to achieve sealing and avoid leakage.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. A reversing valve, comprising:

at least two first pipes for inflow of a medium;

at least one second pipeline for medium outflow, each second pipeline corresponding to at least two first pipelines;

And the driving structure drives the second pipeline to move between different first pipelines, and the second pipeline can be communicated with any one corresponding first pipeline, so that reversing is realized.

2. The reversing valve of claim 1, wherein: and a shielding part is arranged at the lateral side of the second pipeline, and when the second pipeline is communicated with one of the first pipelines, the shielding part shields the outlets of the other corresponding first pipelines.

3. The reversing valve of claim 2, wherein: the driving structure comprises a motor and a linkage mechanism, wherein the motor drives the linkage mechanism to move, and the linkage mechanism drives the second pipeline to move.

4. A reversing valve according to claim 3, characterized in that: the linkage mechanism comprises a crank block mechanism, the input end of the crank block mechanism is connected with the output end of the motor, and the output end of the crank block mechanism is connected with the second pipeline.

5. The reversing valve of claim 4, wherein: the first conduits corresponding to each of the second conduits are arranged along a first direction.

6. The reversing valve of claim 5, wherein: the crank sliding block mechanism comprises a sliding block and a sliding rail, the sliding block is matched with the sliding rail, the sliding block moves along the sliding rail, the second pipeline is arranged on the sliding block and penetrates through the sliding block, the part, protruding out of the outer edge of the second pipeline, of the sliding block forms the shielding part, the sliding rail is arranged along a second direction, and the first direction and the second direction are in the same direction.

7. The reversing valve of claim 6, wherein: the crank sliding block mechanism further comprises a rotating shaft and a crank, one end of the rotating shaft is fixedly connected with an output shaft of the motor, the other end of the rotating shaft is fixedly connected with one end of the crank, a first sliding groove is formed in the other end of the crank, a sliding pin is fixedly connected to the sliding block, and the sliding pin is matched with the first sliding groove and movably connected with the first sliding groove.

8. The reversing valve of claim 6, wherein: still include the casing, first pipeline second pipeline and drive structure all with the casing is connected, be provided with the second spout on the casing, the second spout is arranged along the third direction, the third direction with first direction and the second direction is the same direction, the second pipeline is followed the second spout motion, the length of second spout is greater than or equal to first two last first pipeline distance in the first direction.

9. A reversing valve according to claim 3, characterized in that: the side direction of motor is provided with two at least limit switches, limit switch is used for closing the motor, link gear includes spacing axle, the one end of spacing axle with the output shaft of motor is fixed, the other end of spacing axle corresponds with one of them limit switch is in order to close the motor.

10. The reversing valve of claim 1, wherein: the joint of the first pipeline facing the second pipeline is provided with a sealing ring, and/or the joint of the second pipeline facing the first pipeline is provided with a sealing ring.