CN216078423U - Four-way reversing valve - Google Patents

Abstract

The utility model discloses a four-way reversing valve, which comprises: the valve body is internally provided with a valve body cavity, and four outer valve ports respectively communicated with the valve body cavity are formed on the side wall of the valve body; the valve core is rotatably arranged in the valve body cavity, the valve core cavity is limited in the valve core, a plurality of inner valve ports respectively communicated with the valve core cavity are formed in the side wall of the valve core, the side wall of the valve core is tightly attached to the inner wall of the valve body cavity, and when the valve core rotates, the communication state of the inner valve ports and the corresponding outer valve ports can be changed, so that different outer valve ports are communicated. According to the four-way reversing valve, different outer valve ports are aligned with the corresponding inner valve ports through rotating the valve core, communication between the different outer valve ports is achieved, and then reversing of the flow channel is achieved.

Description

Four-way reversing valve

Technical Field

The utility model relates to a fluid on-off control device, in particular to a four-way reversing valve.

Background

In the field of fluid on-off control, a reversing valve is used for changing the on-off relation among different pipelines and dividing two-way, three-way, four-way, five-way and the like according to the number of controlled channels; the valve core driving mode includes manual, mechanical, electric and hydraulic driving.

The four-way valve is widely applied to refrigeration equipment, most of the existing four-way valves are electromagnetic control valves, the four-way valves are structurally composed of a main valve, a pilot valve and an electromagnetic coil, the main valve and the pilot valve are connected through a connecting support, the main valve of the four-way valve is connected through welding through the connecting support, and then the main valve of the four-way valve is mechanically connected with the pilot valve of the four-way valve in a hoop type.

The four-way valve in the refrigeration equipment is more precise and small, is suitable for being connected in a refrigerant pipeline with a smaller pipe diameter, and has higher cost.

Disclosure of Invention

The utility model provides a four-way reversing valve aiming at the technical problems of complex structure composition and high manufacturing cost of the four-way valve in the prior art, and can solve the problems.

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

a four-way reversing valve comprising:

the valve comprises a valve body, a valve body cavity and a valve body cover, wherein four outer valve ports respectively communicated with the valve body cavity are formed on the side wall of the valve body;

the valve core is rotatably arranged in the valve body cavity, a valve core cavity is limited in the valve core, a plurality of inner valve ports which are respectively communicated with the valve core cavity are formed in the side wall of the valve core, the side wall of the valve core is tightly attached to the inner wall of the valve body cavity, and when the valve core rotates, the communication state of the inner valve ports and the corresponding outer valve ports can be changed, so that different outer valve ports are communicated.

Further, the valve body cavity is cylindrical, and the rotating shaft of the valve core is coaxial with the valve body cavity.

Furthermore, the four outer valve ports are equally divided into two groups, a baffle is arranged in the valve core cavity and used for separating the valve core cavity into two independent sections, and the two groups of outer valve ports are respectively positioned on two sides of the baffle.

Furthermore, in each group of the outer valve ports, one outer valve port at least corresponds to two inner valve ports, and the other outer valve port at least corresponds to one inner valve port.

Furthermore, an avoiding cavity protruding outwards is formed on the side wall of the valve body, the avoiding cavity is communicated with the valve body cavity, the avoiding cavity is correspondingly provided with two inner valve ports which are respectively a seventh inner valve port and an eighth inner valve port, the seventh inner valve port and the eighth inner valve port are respectively positioned on two sides of the baffle, and when the valve core rotates, the seventh inner valve port and the eighth inner valve port can be simultaneously communicated with the avoiding cavity or at least one of the seventh inner valve port and the eighth inner valve port is not communicated with the avoiding cavity.

Further, the cavity bottom of the avoiding cavity is a flat bottom.

Furthermore, two outer valve ports in the same group are arranged in a staggered mode.

Further, the axes of the four outer valve ports are parallel to each other.

Further, one group of the outer valve ports includes a first outer valve port and a second outer valve port, the other group of the outer valve ports includes a third outer valve port and a fourth outer valve port, the first outer valve port corresponds to one inner valve port which is a first inner valve port, the second outer valve port corresponds to two inner valve ports which are a second inner valve port and a third inner valve port respectively, the third outer valve port corresponds to two inner valve ports which are a fourth inner valve port and a fifth inner valve port respectively, the fourth outer valve port corresponds to one inner valve port which is a sixth inner valve port, the first inner valve port, the second inner valve port, the fourth inner valve port and the sixth inner valve port are arranged along the length direction of the valve core, the third inner valve port and the second inner valve port are coaxially arranged, and the fourth inner valve port and the fifth inner valve port are coaxially arranged.

Further, one end of the valve core is formed with a connecting shaft, the connecting shaft extends to the outer side of the valve body cavity, and the four-way reversing valve further comprises:

and the driving mechanism is connected with the connecting shaft and is used for driving the valve core to rotate around the shaft.

Compared with the prior art, the utility model has the advantages and positive effects that: the four-way reversing valve of the utility model has the advantages that the valve core is rotatably arranged in the valve body, the side wall of the valve core is tightly attached to the inner wall of the valve body cavity, when the inner valve port on the side wall of the valve core is opposite to the outer valve port, the outer valve port can be communicated with the valve core cavity, and when a plurality of outer valve ports are respectively opposite to the corresponding inner valve ports, the corresponding outer valve ports are communicated. Through rotating the case for different outer valve ports are aligned with the inner valve port that corresponds separately, have realized the intercommunication between the different outer valve ports, and then realize the switching-over of runner, and this scheme simple structure is convenient for realize, and is with low costs.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

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

FIG. 1 is a schematic structural diagram of a four-way reversing valve according to a first embodiment of the utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of a second embodiment of the four-way reversing valve of the present invention;

FIG. 4 is a schematic structural view of a third embodiment of the four-way reversing valve of the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a cross-sectional view of another embodiment of the four-way reversing valve of the present invention.

Wherein, 11, the valve body; 110. a valve body cavity; 111. an outer valve port; 1111. a first outer valve port; 1112. a second outer valve port; 1113. a third outer valve port; 1114. a fourth outer valve port; 112. an avoidance cavity; 12. A valve core; 120. a spool cavity; 1201. a first spool chamber; 1202. a second spool chamber; 121. an inner valve port; 1211. a first internal valve port; 1212. a second internal valve port; 1213. a third internal valve port; 1214. a fourth internal valve port; 1215. a fifth internal valve port; 1216. a sixth internal valve port; 1217. a seventh internal valve port; 1218. an eighth inner valve port; 122. a baffle plate; 124. a connecting shaft; 13. a drive mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example one

The embodiment provides a four-way reversing valve, as shown in fig. 1 and fig. 2, which includes a valve body 11 and a valve core 12, wherein a valve body cavity 110 is defined inside the valve body 11, four outer valve ports 111 respectively communicated with the valve body cavity 110 are formed on a side wall of the valve body 11, the valve core 12 is rotatably disposed in the valve body cavity 110, a valve core cavity 120 is defined inside the valve core 12, a plurality of inner valve ports 121 respectively communicated with the valve core cavity 120 are formed on a side wall of the valve core 12, the side wall of the valve core 12 is closely attached to an inner wall of the valve body cavity 110, each outer valve port 111 corresponds to at least one inner valve port 121, and when the valve core 12 rotates, a communication state between the inner valve port 121 and the corresponding outer valve port 111 can be changed, so as to communicate different outer valve ports 111.

The four-way reversing valve of the embodiment is characterized in that the valve core 12 is rotatably arranged in the valve body 11, the side wall of the valve core 12 is tightly attached to the inner wall of the valve body cavity 110, the valve core 12 can rotate in the valve body cavity 110, when the inner valve port 121 on the side wall of the valve core 12 is aligned with the outer valve port 111, the outer valve port 111 is communicated with the valve core cavity 120 through the aligned inner valve port 121, and when a plurality of outer valve ports 111 are respectively aligned with the corresponding inner valve ports 121, the plurality of corresponding outer valve ports 111 are communicated with each other.

When the valve core 12 is in the valve body cavity 110, two ends of the valve core cavity 120 are blocked, so that the valve core cavity 120 is ensured to be closed with the outside.

When the outer valve port 111 is staggered from the corresponding inner valve port 121, that is, the outer valve port 111 is tightly blocked by the side wall of the spool 12, so that the outer valve port 111 is not communicated with the spool cavity 120, and the outer valve port 111 cannot be communicated with other outer valve ports 111.

Through rotating case 12, and then can change the connected state of outer valve port 111 and case chamber 120 for different outer valve ports 111 are aligned with interior valve port 121 that corresponds separately, have realized the intercommunication between the different outer valve ports, and then realize the switching-over of runner, and this scheme simple structure is convenient for realize, and is with low costs.

The four-way reversing valve of the embodiment has a simple structure, the volume can be set according to actual needs, and the four-way reversing valve can be arranged in a water pipe with a thicker pipe diameter but not limited to be used for controlling the flow direction.

In order to tightly seal the outer valve port 111 when the valve core 12 rotates to make the outer valve port 111 and the corresponding inner valve port 121 staggered, in this embodiment, the valve body cavity 110 is preferably cylindrical, the valve core 12 is cylindrical and matched with the valve body cavity 110, and the rotation axis of the valve core 12 is coaxial with the valve body cavity 120, so as to ensure that the side wall of the valve core 12 can be tightly attached to the inner wall of the valve body cavity 110 no matter the valve core 12 rotates to any angle, and water leakage is prevented.

Example two

As shown in fig. 3, in the present embodiment, four outer valve ports are equally divided into two groups, so that each group has two outer valve ports, a baffle 122 is disposed in the spool cavity 120, and the baffle 122 is used to partition the spool cavity 120 into two independent sections, namely, a first spool cavity 1201 and a second spool cavity 1202, respectively, that is, the two sections of the spool cavities 120 are not communicated with each other. The two sets of external ports 111 are located on two sides of the baffle 122, and therefore, the first spool chamber 1201 and the second spool chamber 1202 correspond to the two external ports, respectively.

In each group of the outer valve ports, one outer valve port at least corresponds to two inner valve ports, and the other outer valve port at least corresponds to one inner valve port.

As shown in fig. 3, the present embodiment is described by taking an example in which the outer ports of one group include the first outer port 1111 and the second outer port 1112, and the outer ports of the other group include the third outer port 1113 and the fourth outer port 1114.

By providing the baffle 122, any combination of communication or non-communication between the first outer port 1111 and the second outer port 1112, and communication or non-communication between the third outer port 1113 and the fourth outer port 1114 may be achieved by rotating the spool 12.

When the first outer valve port 1111 is communicated with the second outer valve port 1112 and the third outer valve port 1113 is communicated with the fourth outer valve port 1114, two pipelines can be connected in parallel, and when only the first outer valve port 1111 is communicated with the second outer valve port 1112 or the third outer valve port 1113 is communicated with the fourth outer valve port 1114, one-way communication can be realized.

EXAMPLE III

In order to switch the on/off of the outer valve ports located in different groups, as shown in fig. 4 and 5, in this embodiment, it is preferable that an avoidance cavity 112 protruding outward is formed on the sidewall of the valve body 12, the avoidance cavity 112 communicates with the valve body cavity 110, the avoidance cavity 112 has two corresponding inner valve ports, namely a seventh inner valve port 1217 and an eighth inner valve port 1218, and the seventh inner valve port 1217 and the eighth inner valve port 1218 are located on both sides of the baffle 122, so that when the valve core 12 rotates, the seventh inner valve port 1217 and the eighth inner valve port 1218 can communicate with the avoidance cavity 112 at the same time, or at least one of the seventh inner valve port 1217 and the eighth inner valve port 1218 does not communicate with the avoidance cavity 112.

Communication between the first spool chamber 1201 and the second spool chamber 1202 is achieved when the seventh internal valve port 1217 and the eighth internal valve port 1218 can communicate with the bypass chamber 112 simultaneously. The external valve port that is now in communication with the first spool chamber 1201 can then be communicated with the external valve port that is in communication with the second spool chamber 1202, or can be communicated with external valve ports located in different groups.

When at least one of the seventh inner valve port 1217 and the eighth inner valve port 1218 does not communicate with the relief chamber 112, the first spool chamber 1201 and the second spool chamber 1202 do not communicate, and therefore, communication between different sets of outer valve ports is not possible.

For convenience of manufacturing, the cavity bottom of the avoidance cavity 112 in this embodiment is a flat bottom.

In order to increase the number of combinations of communication between different outer valve ports, in this embodiment, it is preferable that two outer valve ports located in the same group are staggered, that is, each outer valve port has an inner valve port between them.

Similarly, in order to increase the number of combinations of communication between different outer valve ports, the axes of the four outer valve ports are parallel to each other.

In this embodiment, an example will be described in which the first outer port 1111 and the fourth outer port 1114 have one inner port, and the second outer port 1112 and the third outer port 1113 have two inner ports.

The inner valve port corresponding to the first outer valve port 1111 is a first inner valve port 1211, the second outer valve port 1112 corresponds to two inner valve ports, which are a second inner valve port 1212 and a third inner valve port 1213, the third outer valve port 1113 corresponds to two inner valve ports, which are a fourth inner valve port 1214 and a fifth inner valve port 1215, respectively, the fourth outer valve port 1114 corresponds to one inner valve port, which is a sixth inner valve port 1216, wherein the first inner valve port 1211, the second inner valve port 1212, the fourth inner valve port 1214 and the sixth inner valve port 1216 are arranged along the length direction of the valve element 12, the third inner valve port 1213 and the second inner valve port 1212 are arranged coaxially, and the fourth inner valve port 1214 and the fifth inner valve port 1215 are arranged coaxially.

The valve core 12 can be driven to rotate by adopting manual, motor, electric, hydraulic and other modes.

The valve core 12 has a connecting shaft 124 formed at one end thereof, and the connecting shaft 124 extends to the outside of the valve body cavity 110. the four-way selector valve of the present embodiment preferably employs a driving mechanism to perform automatic switching, and therefore, as shown in fig. 6, the four-way selector valve further includes a driving mechanism 13.

The driving mechanism 13 is connected to the connecting shaft 124 for driving the valve element 12 to rotate around the shaft.

When at least one of the seventh internal valve opening 1217 and the eighth internal valve opening 1218 is staggered with the avoidance cavity 112, the implementation function of the present solution is similar to that described in the second embodiment, and details are not described here.

The first spool chamber 1201 may be placed in communication with the second spool chamber 120 when the seventh and eighth internal ports 1217, 1218 are simultaneously aligned with the bypass chamber 112. If the second external valve port 1112 and the first spool chamber 1201 communicate with each other and the third external valve port 1113 and the second spool chamber 1202 communicate with each other as shown in fig. 6, the second external valve port 1112 and the third external valve port 1113 can communicate with each other.

By disposing the third inner port 1213 coaxially with the second inner port 1212, it is possible to make the third inner port 1213 remain in a communicated state after the spool 12 is rotated 180 degrees from a state of communicating with the first spool chamber 1201.

Similarly, the fourth inner port 1214 is coaxially disposed with the fifth inner port 1215, so that the fourth inner port 1214 remains in a communicating state after the spool 12 is rotated 180 degrees from the state of communicating with the first spool chamber 1201.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A four-way reversing valve, comprising:

the valve comprises a valve body, a valve body cavity and a valve body cover, wherein four outer valve ports respectively communicated with the valve body cavity are formed on the side wall of the valve body;

the valve core is rotatably arranged in the valve body cavity, a valve core cavity is limited in the valve core, a plurality of inner valve ports which are respectively communicated with the valve core cavity are formed in the side wall of the valve core, the side wall of the valve core is tightly attached to the inner wall of the valve body cavity, and when the valve core rotates, the communication state of the inner valve ports and the corresponding outer valve ports can be changed, so that different outer valve ports are communicated.

2. The four-way reversing valve according to claim 1, wherein the valve body chamber is cylindrical, and the rotational axis of the valve element is disposed coaxially with the valve body chamber.

3. The four-way reversing valve according to claim 1, wherein the four outer valve ports are divided into two groups, a baffle is arranged in the valve core cavity and used for separating the valve core cavity into two independent sections, and the two groups of outer valve ports are respectively positioned on two sides of the baffle.

4. The four-way reversing valve according to claim 3, wherein each of the sets of the outer ports has at least two corresponding inner ports, and the other outer port has at least one corresponding inner port.

5. The four-way reversing valve according to claim 3, wherein an avoiding cavity protruding outward is formed on a sidewall of the valve body, the avoiding cavity is communicated with the valve body cavity, the avoiding cavity corresponds to two internal valve ports, namely a seventh internal valve port and an eighth internal valve port, the seventh internal valve port and the eighth internal valve port are respectively located on two sides of the baffle, and when the valve core rotates, the seventh internal valve port and the eighth internal valve port can be simultaneously communicated with the avoiding cavity or at least one of the seventh internal valve port and the eighth internal valve port is not communicated with the avoiding cavity.

6. The four-way reversing valve of claim 5, wherein the cavity bottom of the bypass cavity is flat.

7. The four-way reversing valve of claim 3, wherein the two outer valve ports in the same set are staggered.

8. The four-way reversing valve of claim 4, wherein the axes of the four outer valve ports are parallel to each other.

9. The four-way reversing valve of claim 8, wherein the outer ports of one of the sets comprise a first outer port and a second outer port, the other group of the outer valve ports comprises a third outer valve port and a fourth outer valve port, the first outer valve port is correspondingly provided with an inner valve port which is a first inner valve port, the second outer valve port is correspondingly provided with two inner valve ports which are respectively a second inner valve port and a third inner valve port, the third outer valve port is correspondingly provided with two inner valve ports which are a fourth inner valve port and a fifth inner valve port respectively, the fourth external valve port is correspondingly provided with an internal valve port which is a sixth internal valve port, the first internal valve port, the second internal valve port, the fourth internal valve port and the sixth internal valve port are distributed along the length direction of the valve core, the third internal valve port and the second internal valve port are coaxially arranged, and the fourth internal valve port and the fifth internal valve port are coaxially arranged.

10. The four-way selector valve according to any one of claims 1 to 9, wherein a connection shaft is formed at one end of the spool, the connection shaft extending to an outside of the valve body chamber, the four-way selector valve further comprising:

and the driving mechanism is connected with the connecting shaft and is used for driving the valve core to rotate around the shaft.

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