CN218761568U - Three-position four-way reversing valve - Google Patents
Three-position four-way reversing valve Download PDFInfo
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- CN218761568U CN218761568U CN202223445414.4U CN202223445414U CN218761568U CN 218761568 U CN218761568 U CN 218761568U CN 202223445414 U CN202223445414 U CN 202223445414U CN 218761568 U CN218761568 U CN 218761568U
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Abstract
The utility model provides a tribit four-way reversing valve. The valve comprises a valve seat, a valve core, a guide disc and a valve cover, wherein the valve seat is provided with a valve cavity, and the top of the valve seat is provided with an opening communicated with the valve cavity; the valve core is arranged in the valve cavity, a spring is arranged between one end of the valve core and the valve cavity, and the other end part of the valve core is inserted into the valve cover; the valve cover is positioned on one side of the valve seat, which is provided with an opening, and is detachably connected with the valve seat, and the center of the valve cover is provided with a medium flow passage which axially penetrates through the valve cover; one end of the guide disc and one end of the valve core inserted into the valve cover are positioned in the medium flow channel, and the guide disc is respectively and rotatably connected with the valve core and the medium flow channel; an annular sealing groove is formed in the contact surface of the opening of the valve seat and the valve core; a sealing ring is arranged in the annular sealing groove; the inner side and the outer side of the sealing ring are respectively abutted against the valve core and the annular sealing groove. This application is provided with annular seal groove on the contact surface of disk seat and case, sets up O type sealing washer in annular seal groove, has avoided the leakage that leads to causing between disk seat and the case because operational environment's change in the work.
Description
Technical Field
The utility model relates to a switching-over valve technical field, in particular to tribit four-way switching-over valve.
Background
At present, a three-position four-way reversing valve is provided with four air ports and three working positions, a disc type slide valve is taken as an example and is a three-position four-way type, the driving mode is manual, all flow passages can be communicated mutually by rotating two discs, the sealing mode between a valve core and a valve body of the existing three-position four-way reversing valve is that a whole piece of rubber sealing gasket is paved on one surface of a valve seat, which is contacted with a valve cover, to seal the valve core in the valve body of the valve seat, and the part of the valve core, which extends out of the valve seat, is sealed by the sealing gasket.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the sealing mode that the tribit cross valve adopted leads to revealing easily in the use among the prior art, the utility model provides a tribit cross valve, concrete scheme is:
a three-position four-way reversing valve, which comprises a valve seat, a valve core, a guide disc and a valve cover,
the valve seat is provided with a valve cavity, and the top of the valve seat is provided with an opening communicated with the valve cavity;
the valve core is arranged in the valve cavity, a spring is arranged between one end of the valve core and the valve cavity, the other end of the valve core extends out of the valve cavity, and the part of the valve core extending out of the valve cavity is inserted into the valve cover;
the valve cover is positioned on one side of the valve seat, which is provided with an opening, the valve cover is detachably connected with the valve seat, and a penetrating medium flow passage is arranged in the center of the valve cover;
the medium flow channel is communicated with the valve cavity, the guide disc is contacted with one end of the valve core inserted into the valve cover, and is positioned in the medium flow channel together with the guide disc and one end of the valve core inserted into the valve cover, and the guide disc is respectively in rotating connection with the valve core and the medium flow channel;
two ends of the spring are respectively fixedly connected with the valve cavity and the valve core;
an annular sealing groove is formed in the contact surface of the opening of the valve seat and the valve core;
a sealing ring is arranged in the annular sealing groove;
the sealing ring is sleeved outside the valve core, and the inner side and the outer side of the sealing ring are respectively abutted against the valve core and the annular sealing groove.
Preferably, the axes of the valve seat, the medium flow passage, the valve cavity, the valve core, the valve cover and the guide disc are positioned on the same straight line.
Preferably, two opposite radial surfaces of the valve cover are respectively provided with an air inlet and three working ports arranged at intervals,
the air inlet and the working port are respectively communicated with the medium flow passage.
Preferably, a first arc-shaped sealing groove, a second arc-shaped sealing groove and a first center hole are formed in one side, close to the spring, of the valve core;
the first center hole is a through hole, a strip-shaped groove is formed in one side, close to the spring, of the first center hole, and the first center hole is internally tangent to the strip-shaped groove;
the first arc-shaped sealing groove and the second arc-shaped sealing groove are oppositely arranged at two sides of the first center hole, and a medium inlet and a medium outlet are arranged in the first arc-shaped sealing groove or the second arc-shaped sealing groove;
the medium inlet and the medium outlet are arranged at two ends of the first arc-shaped sealing groove or the second arc-shaped sealing groove at intervals and internally tangent to the first arc-shaped sealing groove or the second arc-shaped sealing groove, and the medium inlet and the medium outlet are axial through holes along the valve core.
Preferably, the axial end face of the guide disc is provided with four air holes and a second center hole corresponding to the first center hole,
the second central hole is a through hole and is positioned in the center of the guide disc;
four the bleeder vent sets up along second centre bore hoop, the bleeder vent is the vertically through hole, bleeder vent one end is passed the positioning disk and is close to one side of case, the other end of bleeder vent passes the week side of positioning disk, the hole site that the bleeder vent passed the one end of positioning disk week side with the position of air inlet or working port is corresponding, the hole site that the bleeder vent passed one side of positioning disk and be close to the case with the position of medium entry and medium export is corresponding, the distance that the bleeder vent is located the centre of a circle of the radial hole site of positioning disk to positioning disk center equals air inlet or working port to the distance of case.
Preferably, the device also comprises a connecting shaft for connecting the valve core and the guide disc,
the connecting shaft sequentially penetrates through the guide disc and the valve core;
the connecting shaft is respectively and fixedly connected with the guide disc and the valve core.
Preferably, the valve seat is provided with a plurality of first connecting holes,
the first connecting holes are arranged on two opposite sides of the valve seat opening;
the valve cover is provided with a second connecting hole corresponding to the first connecting hole;
thereby first connecting hole and second connecting hole realize the removable connection of valve gap and disk seat through bolt/screw connection.
Compared with the prior art, the application has the advantages that,
this application is provided with the annular seal groove on the contact surface of disk seat and case, sets up O type sealing washer in the annular seal groove, because the sealing washer is installed in the seal groove, all the time with seal groove and case butt, avoided producing radial gap or displacement between the sealing washer that the expend with heat and contract with cold that the operating temperature arouses and the case in the work to and because the sealing washer that compressed air in the valve chamber leads to produces axial displacement, lead to the revealing that causes between disk seat and the case.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings 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:
FIG. 1 is a cross-sectional view of a three-position, four-way reversing valve according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a valve seat in a three-position four-way reversing valve according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a three-position four-way reversing valve for measuring explosion from top to bottom axis according to an embodiment of the present invention;
fig. 4 is a schematic view of a three-position four-way reversing valve in an embodiment of the present invention, illustrating axial explosion from bottom to top;
fig. 5 is a schematic structural view of a guide disc in a three-position four-way reversing valve according to an embodiment of the present invention;
fig. 6 is an isometric view of a valve spool in a three-position, four-way reversing valve according to an embodiment of the present invention;
fig. 7 is a bottom view of a valve element of a three-position four-way reversing valve according to an embodiment of the present invention;
fig. 8 is a top view of a valve element of a three-position, four-way reversing valve according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a connecting shaft in a three-position four-way reversing valve according to an embodiment of the present invention;
figure 10 is a schematic diagram of the operation of a three-position four-way reversing valve according to an embodiment of the present invention,
the valve comprises a valve seat 1, a valve cover 2, a valve core 3, a guide disc 4, a connecting shaft 5, a sealing ring 6, an air inlet 7, a working port 8, a positioning pin 9, a valve cavity 10, a medium flow passage 11, an annular sealing groove 12, a first connecting hole 13, a second connecting hole 14, an air inlet 15, a working port 16, a first central hole 17, an air vent 18, a second central hole 19, a first arc-shaped sealing groove 20, a second arc-shaped sealing groove 21, a strip-shaped groove 22, a first rod 23, an annular limiting plate 24, a second rod 25, a limiting groove 26, a wear-resistant ring 27, a third rod 28, a connecting hole 29 and a spring 30.
Detailed Description
The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.
According to the three-position four-way reversing valve shown in the attached figures 1-10, the three-position four-way reversing valve comprises a valve seat 1, a valve core 4, a guide disc 3 and a valve cover 2,
the valve seat 1 is provided with a valve cavity 10, and the top of the valve seat 1 is provided with an opening communicated with the valve cavity 10;
the valve core 4 is arranged in the valve cavity 10, a spring 30 is arranged between one end of the valve core 4 and the valve cavity 10, the other end of the valve core 4 extends out of the valve cavity 10, and the part of the valve core 4 extending out of the valve cavity 10 is inserted into the valve cover 2;
the valve cover 2 is positioned on one side of the valve seat 1 provided with an opening, the valve cover 2 is detachably connected with the valve seat 1, and a penetrating medium flow passage 11 is arranged in the center of the valve cover 2;
the medium flow channel 11 is communicated with the valve cavity 10, the guide disc 3 is contacted with one end of the valve core 4 inserted into the valve cover 2, the ends of the guide disc 3 and the valve core 4 inserted into the valve cover 2 are both positioned in the medium flow channel 11, and the guide disc 3 is respectively connected with the valve core 4 and the medium flow channel 11 in a rotating way;
two ends of the spring 30 are respectively and fixedly connected with the valve cavity 10 and the valve core 4;
an annular sealing groove 12 is formed in the contact surface between the opening of the valve seat 1 and the valve core 4;
a sealing ring 6 is arranged in the annular sealing groove 12;
the sealing ring 6 is sleeved outside the valve core 4, and the inner side and the outer side of the sealing ring 6 are respectively abutted against the valve core 4 and the annular sealing groove 12.
Further, the axes of the valve seat 1, the medium flow passage 11, the valve cavity 10, the valve core 4, the valve cover 2 and the guide disc 3 are located on the same straight line.
Furthermore, two opposite radial surfaces of the valve cover 2 are respectively provided with an air inlet 7 and three working ports 8 which are arranged at intervals,
the air inlet 7 and the working port 8 are respectively communicated with the medium flow passage 11.
Further, a first arc-shaped sealing groove 20, a second arc-shaped sealing groove 21 and a first central hole 17 are arranged on one side, close to the spring 30, of the valve core 4;
the first central hole 17 is a through hole, a strip-shaped groove 22 is formed in one side, close to the spring 30, of the first central hole 17, and the first central hole 17 is internally tangent to the strip-shaped groove 22;
the first arc-shaped seal groove 20 and the second arc-shaped seal groove 21 are oppositely arranged at two sides of the first central hole 17, and a medium inlet 15 and a medium outlet 16 are arranged in the first arc-shaped seal groove 20 or the second arc-shaped seal groove 21;
the medium inlet 15 and the medium outlet 16 are disposed at two ends of the first arc-shaped seal groove 20 or the second arc-shaped seal groove 21 at intervals, and are internally tangent to the first arc-shaped seal groove 20 or the second arc-shaped seal groove 21, and the medium inlet 15 and the medium outlet 16 are axial through holes along the valve element 4.
Furthermore, the axial end surface of the guide disc 3 is provided with four air holes 18 and a second central hole 19 corresponding to the first central hole 17,
the second central hole 19 is a through hole, and the second central hole 19 is positioned in the center of the guide disc 3;
four bleeder vent 18 sets up along 19 rings of second centre bore, bleeder vent 18 is the vertically through hole, 18 one end of bleeder vent passes the side that the positioning disk 3 is close to case 4, the other end of bleeder vent 18 passes the week side of positioning disk 3, the hole site that bleeder vent 18 passed the one end of positioning disk 3 week side with the position of air inlet 7 or working opening 8 is corresponding, hole site that bleeder vent 18 passed one side that the positioning disk 3 is close to case 4 with the position of medium entry 15 and medium export 16 is corresponding, the distance that the centre of a circle of the hole site that bleeder vent 18 is located the positioning disk 3 radial surface (be positioning disk 3 week side) equals to the distance at positioning disk 3 center air inlet 7 or working opening 8 to case 4. Namely, the air holes 18 are respectively communicated with the air inlet 7 or the working port 8.
Furthermore, the device also comprises a connecting shaft 5 which connects the valve core 4 and the guide disc 3,
the connecting shaft 5 sequentially penetrates through the guide disc 3 and the valve core 4;
the connecting shaft 5 is fixedly connected with the guide disc 3 and the valve core 4 respectively.
Furthermore, a plurality of first connecting holes 13 are arranged on the valve seat 1,
the first connecting holes 13 are arranged on two opposite sides of the opening of the valve seat 1;
the valve cover 2 is provided with a second connecting hole 14 corresponding to the first connecting hole 13;
the first connection hole 13 and the second connection hole 14 are connected by bolts/screws to achieve detachable connection of the valve cover 2 and the valve seat 1.
It should be noted that the three-position four-way valve is manually driven, a handle is arranged at the top of the valve cover 2, the handle is a conventional handle in the industry, the handle is detachably connected with the valve cover 2 through bolts/screws, limiting holes are formed in the contact surfaces of the mounting seat of the handle and the valve cover 2, and the limiting holes are connected through positioning pins 9;
the detachable connection in the application is realized by bolts/screws;
in the present application, six first connection holes 13 and six second connection holes 14 are correspondingly provided;
in the application, the connecting shaft 5 sequentially penetrates through the mounting seat, the guide disc 4 and the valve core 3 of the handle and is fixedly connected with the mounting seat, the guide disc 4 and the valve core 3;
the connecting shaft 5 comprises a first shaft 28, a second shaft 25 and a third shaft 23 which are fixedly connected from top to bottom in sequence;
the first shaft 28 is provided with a radial connecting hole 29, and the handle is connected with the connecting shaft 5 through the radial connecting hole 29;
one end of the second shaft 25 close to the third shaft 23 is provided with an annular limiting plate 24, the second shaft 25 is provided with an annular limiting groove 26, a wear-resistant ring 27 is arranged in the annular limiting groove 26,
the annular limiting plate 24 is sleeved outside the second shaft 25 and is fixedly connected with the second shaft 25,
the valve core 3 is sleeved outside the second shaft 25, the valve core 3 is positioned at the top of the annular limit plate 24, and the valve core 3 is in contact with the annular limit plate 24;
the guide disc 4 is sleeved outside the wear-resistant ring 27.
The working process of the application is shown in the attached figure 10:
the four air holes 18 in the present application are respectively an air inlet hole 31, a first air outlet hole 32, an air outlet hole 33 and a second air outlet hole 34,
when the handle is stopped at the middle position, the sealing groove 20 and the sealing groove 21 cover the air inlet hole 31, the first air outlet hole 32, the exhaust hole 33 and the second air outlet hole 34 respectively, and at the moment, the air inlet hole 31, the first air outlet hole 32, the second air outlet hole 34 and the exhaust hole 33 are all in a closed state;
when the handle is rotated clockwise by 45 degrees, the air inlet hole 31 is communicated with the first air outlet hole 32, and the second air outlet hole 34 is communicated with the air outlet hole 33;
when the handle is rotated 45 degrees counterclockwise, the air inlet hole 31 is communicated with the second air outlet hole 34, and the first air outlet hole 32 is communicated with the air outlet hole 33.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A three-position four-way reversing valve is characterized by comprising a valve seat (1), a valve core (4), a guide disc (3) and a valve cover (2),
the valve seat (1) is provided with a valve cavity (10), and the top of the valve seat (1) is provided with an opening communicated with the valve cavity (10);
the valve core (4) is arranged in the valve cavity (10), a spring (30) is arranged between one end of the valve core (4) and the valve cavity (10), the other end of the valve core (4) extends out of the valve cavity (10), and the part of the valve core (4) extending out of the valve cavity (10) is inserted into the valve cover (2);
the valve cover (2) is positioned on one side of the valve seat (1) provided with an opening, the valve cover (2) is detachably connected with the valve seat (1), and a penetrating medium flow passage (11) is arranged in the center of the valve cover (2);
the medium flow channel (11) is communicated with the valve cavity (10), the guide disc (3) is contacted with one end, inserted into the valve cover (2), of the valve core (4), the guide disc (3) and one end, inserted into the valve cover (2), of the valve core (4) are both positioned in the medium flow channel (11), and the guide disc (3) is respectively in rotating connection with the valve core (4) and the medium flow channel (11);
two ends of the spring (30) are respectively and fixedly connected with the valve cavity (10) and the valve core (4);
an annular sealing groove (12) is formed in the contact surface of the opening of the valve seat (1) and the valve core (4);
a sealing ring (6) is arranged in the annular sealing groove (12);
the sealing ring (6) is sleeved outside the valve core (4), and the inner side and the outer side of the sealing ring (6) are respectively abutted against the valve core (4) and the annular sealing groove (12).
2. A three-position, four-way reversing valve according to claim 1, characterized in that the axes of the valve seat (1), the medium flow passage (11), the valve chamber (10), the valve core (4), the valve cover (2) and the pilot disc (3) are located on the same line.
3. A three-position four-way reversing valve according to claim 2, wherein the valve cover (2) is provided with an air inlet (7) and three spaced working ports (8) on two opposite radial surfaces,
the air inlet (7) and the working port (8) are respectively communicated with the medium flow channel (11).
4. A three-position four-way reversing valve according to claim 3, wherein a first arc-shaped sealing groove (20), a second arc-shaped sealing groove (21) and a first center hole (17) are formed in one side, close to the spring (30), of the valve core (4);
the first center hole (17) is a through hole, a strip-shaped groove (22) is formed in one side, close to the spring (30), of the first center hole (17), and the first center hole (17) is internally tangent to the strip-shaped groove (22);
the first arc-shaped sealing groove (20) and the second arc-shaped sealing groove (21) are oppositely arranged at two sides of the first central hole (17), and a medium inlet (15) and a medium outlet (16) are arranged in the first arc-shaped sealing groove (20) or the second arc-shaped sealing groove (21);
the medium inlet (15) and the medium outlet (16) are arranged at two ends of the first arc-shaped sealing groove (20) or the second arc-shaped sealing groove (21) at intervals and internally tangent to the first arc-shaped sealing groove (20) or the second arc-shaped sealing groove (21), and the medium inlet (15) and the medium outlet (16) are axial through holes along the valve core (4).
5. A three-position, four-way reversing valve according to claim 4, wherein the axial end face of the pilot disc (3) is provided with four venting holes (18) and a second central hole (19) corresponding to the first central hole (17),
the second central hole (19) is a through hole, and the second central hole (19) is positioned in the center of the guide disc (3);
four bleeder vent (18) set up along second centre bore (19) hoop, bleeder vent (18) are the vertically through hole, bleeder vent (18) one end is passed deflector (3) and is close to one side of case (4), the other end of bleeder vent (18) passes the week side of deflector (3), bleeder vent (18) pass the hole site of the one end of deflector (3) week side with the position of air inlet (7) or working opening (8) is corresponding, bleeder vent (18) pass the hole site of deflector (3) one side that is close to case (4) with the position of medium entry (15) and medium export (16) is corresponding, the distance that centre of a circle to deflector (3) center that bleeder vent (18) are located the hole site of deflector (3) radial surface equals air inlet (7) or working opening (8) to the distance of case (4).
6. A three-position, four-way reversing valve according to claim 2, further comprising a connecting shaft (5) connecting the spool (4) and the pilot disc (3),
the connecting shaft (5) sequentially penetrates through the guide disc (3) and the valve core (4);
the connecting shaft (5) is respectively and fixedly connected with the guide disc (3) and the valve core (4).
7. A three-position, four-way reversing valve according to claim 1, characterized in that the valve seat (1) is provided with a number of first connection holes (13),
the first connecting holes (13) are arranged on two opposite sides of the opening of the valve seat (1);
the valve cover (2) is provided with a second connecting hole (14) corresponding to the first connecting hole (13);
the first connecting hole (13) and the second connecting hole (14) are connected through bolts/screws so as to realize detachable connection of the valve cover (2) and the valve seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223445414.4U CN218761568U (en) | 2022-12-22 | 2022-12-22 | Three-position four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223445414.4U CN218761568U (en) | 2022-12-22 | 2022-12-22 | Three-position four-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218761568U true CN218761568U (en) | 2023-03-28 |
Family
ID=85683693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223445414.4U Active CN218761568U (en) | 2022-12-22 | 2022-12-22 | Three-position four-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218761568U (en) |
-
2022
- 2022-12-22 CN CN202223445414.4U patent/CN218761568U/en active Active
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