CN212389803U

CN212389803U - Reversing valve

Info

Publication number: CN212389803U
Application number: CN202021422961.9U
Authority: CN
Inventors: 韩润虎; 周巨翔
Original assignee: Zhejiang Dunan Machinery Co Ltd
Current assignee: Zhejiang Dunan Machinery Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-01-22
Anticipated expiration: 2030-07-17

Abstract

The utility model provides a reversing valve, including the valve body and rotationally install at the inside case of valve body, be provided with a plurality of routes on the valve body, rotatory case can make two intercommunications in a plurality of routes selectively, and the reversing valve still includes: the driving part is arranged on the valve body and comprises at least one output part, and a plurality of first transmission structures are arranged on the circumferential direction of the output part; the transmission part is fixed at the end part of the valve core and is coaxially arranged with the valve core, a plurality of second transmission structures are arranged in the circumferential direction of the inner side or the circumferential direction of the outer side of the transmission part, and the power of the output part of the driving part can be transmitted to the valve core through the matching of the first transmission structure and the second transmission structures. The selection of the passage can be realized by controlling the rotation angle of the transmission part, and mechanisms such as a speed reducer and the like do not need to be arranged outside the valve body, so that the reversing valve is simpler in structure and easy to install.

Description

Reversing valve

Technical Field

The utility model relates to a switching-over valve equipment technical field particularly, relates to a switching-over valve.

Background

At present, most of piston type four-way reversing valves adopt pneumatic control on a piston, so that the piston type four-way reversing valves can work only by depending on the air pressure of an air conditioner. If the air conditioner is not started or the pressure does not meet the requirement, the four-way valve cannot work normally.

The electric four-way valve uses motor to drive piston to rotate 90 degrees clockwise or counterclockwise to guide the hot air from compressor to flow in the air conditioner. Hot air discharged by the compressor enters the outdoor unit through the reversing valve, and then the outdoor unit is hot and the indoor unit is cold, namely a summer refrigeration mode; after the piston rotates 90 degrees, hot air enters the indoor unit through the reversing valve, the indoor unit is hot, the outdoor unit is cold, and the mode is a heating mode in winter. However, the existing electric four-way valve needs a large gearbox arranged outside the valve body, and the structure is complex.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a directional control valve to solve the problem that an electric directional control valve in the prior art requires an externally mounted transmission or the like to be provided with an auxiliary member to complicate the structure.

In order to achieve the above object, the utility model provides a reversing valve, including the valve body and rotationally install the case inside the valve body, be provided with a plurality of routes on the valve body, rotatory case can make two intercommunications in a plurality of routes selectively, and the reversing valve still includes: the driving part is arranged on the valve body and comprises at least one output part, and a plurality of first transmission structures are arranged on the circumferential direction of the output part; the transmission part is fixed at the end part of the valve core and is coaxially arranged with the valve core, a plurality of second transmission structures are arranged in the circumferential direction of the inner side or the circumferential direction of the outer side of the transmission part, and the power of the output part can be transmitted to the valve core through the matching of the first transmission structure and the second transmission structures.

Further, the output part is one, the driving part comprises a driving motor, and the output part is connected to the output end of the driving motor.

Further, the output portion is a plurality of, and the drive division includes driving motor and connects the drive wheel on driving motor, and the circumference of drive wheel is provided with a plurality of third transmission structure, and third transmission structure and the cooperation of first transmission structure to make driving motor's power transmit for the output portion.

Further, the transmission part is detachably connected with the valve core.

Further, the transmission part is connected with the valve core through a plurality of pins or bolts or keys.

Furthermore, a groove is formed in the end face of the valve core, and the transmission part is pressed in the groove.

Further, the transmission part and the valve core are fixed through welding.

Furthermore, the end face of the valve core is integrally formed with a transmission part.

Further, the drive portion includes driving motor, and the valve body includes the body and installs first end cover and the second end cover at the body both ends, and driving motor installs on first end cover.

Furthermore, the transmission part is annular, the radius of the transmission part is the same as that of the first end cover, and a plurality of second transmission structures are arranged on the inner side of the transmission part.

Further, the baffle is the straight plate, and the straight plate passes through the axis of case to divide into two equidimension cavities with the inner chamber of valve body.

Furthermore, four passages are arranged on the valve body, and the four passages can be selectively communicated in pairs by rotating the valve core.

Further, the transmission part is an inner gear ring, and the output part is a gear.

Further, the transmission part is an outer gear ring, and the output part is a gear.

Further, the gear is a profile gear.

Further, only one tooth of the shaped gear or only part of the periphery of the shaped gear is provided with teeth.

Use the technical scheme of the utility model, when the operation of commuting needs, give electricity to the drive division, make the output portion rotate, the cooperation through first transmission structure and second transmission structure transmits the power transmission of output portion for transmission portion, and then it is rotatory to drive the case through transmission portion, the realization is to the switching of switching to the valve state, the rotation angle through control transmission portion can realize the selection to the route, need not to set up mechanisms such as reduction gear in the valve body outside, make the switching-over valve structure simpler, easily installation.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 schematically illustrates an exploded view of the structure of an embodiment of the diverter valve of the present invention;

figure 2 schematically illustrates an internal block diagram of an embodiment of the reversing valve of the present invention.

Wherein the figures include the following reference numerals:

10. a valve body; 20. a passage; 30. an output section; 40. a transmission section; 50. a valve core; 51. a first rotating plate; 52. a second rotating plate; 53. a partition plate; 60. a pin; 71. a drive motor; 72. a first end cap; 73. a second end cap.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As described in the background art, the electric four-way valve is configured to guide the flow of hot air from the compressor in the air conditioner by rotating the piston clockwise or counterclockwise by 90 degrees by the motor. Hot air discharged by the compressor enters the outdoor unit through the reversing valve, and then the outdoor unit is hot and the indoor unit is cold, namely a summer refrigeration mode; after the piston rotates 90 degrees, hot air enters the indoor unit through the reversing valve, the indoor unit is hot, the outdoor unit is cold, and the mode is a heating mode in winter. However, the existing electric four-way valve needs a large gearbox arranged outside the valve body, and the structure is complex.

In order to solve the above problem, referring to fig. 1 and fig. 2, an embodiment of the present invention provides a reversing valve, including a valve body 10 and a valve core 50 rotatably installed inside the valve body 10, the valve body 10 is provided with a plurality of passages 20, the rotating valve core 50 can selectively communicate two of the passages 20, the reversing valve further includes a driving portion and a transmission portion 40, the driving portion is disposed on the valve body 10, the driving portion includes at least one output portion 30, and a plurality of first transmission structures are disposed in a circumferential direction of the output portion 30; the transmission part 40 is fixed at the end of the valve core 50 and is coaxially arranged with the valve core 50, a plurality of second transmission structures are circumferentially arranged on the inner side or the outer side of the transmission part 40, and the power of the output part 30 can be transmitted to the valve core 50 through the matching of the first transmission structures and the second transmission structures. When the switching-over operation is carried out to needs, give electricity to drive division for output portion rotates, and the cooperation through first drive structure and second drive structure transmits the power of output portion for transmission portion, and then drives the case rotation through transmission portion, realizes the switching to the switching of switching-over valve state, can realize the selection to the route through the rotation angle of control transmission portion, need not to set up mechanisms such as reduction gear at the valve body outside, makes the switching-over valve structure simpler, easily installation.

The first transmission structure and the second transmission structure can be engaged, can be matched by a convex part and a concave part, and can also be matched by friction force.

Preferably, the valve body 10 of the present embodiment is provided with four passages 20, and the rotary valve core 50 can selectively communicate two by two of the four passages 20. The transmission part is annular, the radius of the transmission part 40 in the embodiment is the same as that of the first end cover 72, the inner side of the transmission part 40 is provided with a plurality of second transmission structures, and the reversing valve in the embodiment is mainly applied to the screw air-cooled heat pump unit.

Specifically, the valve body 50 in the present embodiment includes a first rotating plate 51, a second rotating plate 52, and a partition plate 53 disposed between the first rotating plate 51 and the second rotating plate 52, the partition plate 53 partitions an inner cavity of the valve body 10 into two chambers that are not communicated with each other, and at least one of the two chambers can simultaneously communicate with the two passages 20. The first rotating plate and the second rotating plate are circular plates and are matched with the inner wall of the valve body, the two passages are communicated with the cavity through rotation of the cavity, and then the two passages are communicated.

In one embodiment, the output unit 30 in this embodiment is one, the driving unit includes a driving motor 71, and the output unit 30 is connected to an output end of the driving motor 71.

The transmission part 40 is detachably connected to the valve core 50 for easy installation and replacement. Preferably, the transmission part 40 and the valve core 50 in this embodiment are connected by a plurality of pins 60 or bolts or keys, and in other embodiments, the transmission part may be connected to the first rotating plate by welding or machined on the first rotating plate.

In order to reasonably utilize the space, the end face of the valve core 50 in the embodiment is provided with a groove, the transmission part 40 is pressed in the groove, and the transmission part is pressed in the groove, so that the whole volume can be reduced, and the transmission part can be protected to a certain extent. The transmission part 40 and the valve core 50 in the embodiment are fixed by welding, so that the connection is firmer.

In a preferred embodiment, the valve core 50 of the present embodiment is integrally formed with the transmission portion 40 on the end surface, so that the connection between the transmission portion and the valve core is more stable, and the stability of the directional valve is effectively ensured.

In order to ensure the stability of the interior of the valve body, the driving portion in this embodiment includes a driving motor 71, the valve body 10 includes a body, and a first end cover 72 and a second end cover 73 installed at two ends of the body, the driving motor 71 is installed on the first end cover 72, and the first end cover and the second end cover are installed at two sides of the body through screws.

Preferably, the partition 53 in this embodiment is a straight plate passing through the axis of the valve core 50 to divide the inner cavity of the valve body 10 into two equally large chambers. In other embodiments, the baffle may be configured as a bent plate or a bent plate such that the two chambers are not equally large.

The planetary gear mechanism is adopted, the rotating speed of the valve core is reduced, the rotating torque of the motor is amplified, the processing and the installation are simple, and a special motor and a reduction gearbox are not needed.

In one embodiment, the transmission portion 40 in this embodiment is an external gear ring, the output portion 30 is a gear, and the gear in this embodiment is a profile gear. In this embodiment, only one tooth of the shaped gear or only part of the periphery of the shaped gear is provided with teeth.

In another embodiment, the transmission part 40 in this embodiment is a ring gear, and the output part 30 is a gear. The gears in this embodiment are shaped gears. In this embodiment, only one tooth of the shaped gear or only part of the periphery of the shaped gear is provided with teeth.

Wherein, first transmission structure and second transmission structure can be special-shaped tooth cooperation structure.

In another embodiment, the number of the output portions 30 in this embodiment is multiple, the driving portion includes a driving motor 71 and a driving wheel connected to the driving motor 71, a plurality of third transmission structures are arranged on the driving wheel in the circumferential direction, and the third transmission structures are matched with the first transmission structures, so that the power of the driving motor 71 is transmitted to the output portions 30. The transmission part 40 in this embodiment is an inner gear ring, and the output part 30 is a gear, i.e., a planetary gear, and a driving wheel, i.e., a sun gear.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

when the switching-over operation is carried out to needs, give electricity to drive division for output portion rotates, and the cooperation through first drive structure and second drive structure transmits the power of output portion for transmission portion, and then drives the case rotation through transmission portion, realizes the switching to the switching of switching-over valve state, can realize the selection to the route through the rotation angle of control transmission portion, need not to set up mechanisms such as reduction gear at the valve body outside, makes the switching-over valve structure simpler, easily installation.

It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are explicitly contemplated herein.

The present disclosure in accordance with certain embodiments described herein is not to be limited in scope by the specific aspects illustrated. As will be apparent to those skilled in the art, many modifications and variations are possible without departing from the spirit and scope of the disclosure. Functionally equivalent methods and apparatuses, in addition to those enumerated herein, will be apparent to those skilled in the art from the foregoing description, within the scope of the present disclosure. Such modifications and variations are intended to fall within the scope of the appended claims. The disclosure is to be limited only by the terms of the appended claims, along with the full scope of equivalents to which such claims are entitled. It is to be understood that this disclosure is not limited to particular methods, reagents, compounds, compositions or biological systems, which can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.

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

Claims

1. A reversing valve, comprising a valve body (10) and a valve core (50) rotatably mounted inside the valve body (10), wherein a plurality of passages (20) are provided on the valve body (10), and two of the passages (20) can be selectively communicated by rotating the valve core (50), the reversing valve further comprising:

the driving part is arranged on the valve body (10) and comprises at least one output part (30), and a plurality of first transmission structures are arranged on the circumferential direction of the output part (30);

the transmission part (40) is fixed at the end part of the valve core (50) and is coaxially arranged with the valve core (50), a plurality of second transmission structures are arranged on the inner side circumference or the outer side circumference of the transmission part (40), and the power of the output part (30) can be transmitted to the valve core (50) through the matching of the first transmission structures and the second transmission structures.

2. The reversing valve according to claim 1, wherein the spool (50) comprises a first rotating plate (51), a second rotating plate (52), and a partition plate (53) disposed between the first rotating plate (51) and the second rotating plate (52), the partition plate (53) dividing the inner cavity of the valve body (10) into two chambers that are not in communication with each other, at least one of the two chambers being capable of simultaneously communicating the two passages (20).

3. A reversing valve according to claim 1, characterized in that the output (30) is one, the drive comprising a drive motor (71), the output (30) being connected to the output of the drive motor (71).

4. The reversing valve according to claim 1, characterized in that the output part (30) is provided in plurality, the driving part comprises a driving motor (71) and a driving wheel connected to the driving motor (71), and a plurality of third transmission structures are arranged on the driving wheel in the circumferential direction and are matched with the first transmission structures, so that the power of the driving motor (71) is transmitted to the output part (30).

5. The reversing valve according to claim 1, wherein the transmission portion (40) is detachably connected to the spool (50).

6. The reversing valve according to claim 5, wherein the transmission portion (40) is keyed to the spool (50) by a plurality of pins (60) or bolts or keys.

7. The reversing valve according to claim 5, wherein the valve core (50) has a recess in an end face thereof, and the transmission portion (40) is press-fitted in the recess.

8. The reversing valve according to claim 1, wherein the transmission portion (40) and the spool (50) are fixed by welding.

9. The reversing valve according to claim 1, wherein the transmission portion (40) is integrally formed on the end surface of the valve core (50).

10. The reversing valve according to claim 1, wherein the driving part comprises a driving motor (71), the valve body (10) comprises a body and a first end cover (72) and a second end cover (73) which are arranged at two ends of the body, and the driving motor (71) is arranged on the first end cover (72).

11. Reversing valve according to claim 10, wherein the transmission part (40) is ring-shaped, the radius of the transmission part (40) being the same as the radius of the first end cap (72), a plurality of the second transmission structures being arranged inside the transmission part (40).

12. The reversing valve according to claim 2, wherein the partition (53) is a straight plate passing through the axis of the spool (50) to divide the interior cavity of the valve body (10) into two equally sized chambers.

13. The reversing valve according to claim 2, characterized in that four passages (20) are provided in the valve body (10), and rotation of the spool (50) selectively places the four passages (20) in communication with each other.

14. Reversing valve according to any of claims 1 to 13, characterized in that the transmission part (40) is an annulus gear and the output part (30) is a gear wheel.

15. Reversing valve according to any of claims 1 to 13, characterized in that the transmission part (40) is an external gear ring and the output part (30) is a gear wheel.

16. The reversing valve of claim 14, wherein the gear is a shaped gear.

17. The reversing valve of claim 15, wherein the gear is a shaped gear.

18. The reversing valve of claim 16 or 17, wherein only one tooth of the shaped gear or only a portion of the periphery of the shaped gear is provided with teeth.