CN209781752U

CN209781752U - Rotor type reversing valve

Info

Publication number: CN209781752U
Application number: CN201920326293.0U
Authority: CN
Inventors: 宋树春
Original assignee: Mccorvey Kunshan Machinery Co Ltd
Current assignee: Mccorvey Kunshan Machinery Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2019-12-13
Anticipated expiration: 2029-03-14

Abstract

The utility model discloses a rotor formula switching-over valve, it relates to the switching-over valve field, and is not tight to the material separation when aiming at solving traditional rotor formula switching-over valve switching-over, produces the problem that material colludes in the two passageways and the material reveals each other easily. The technical scheme is that the valve comprises a valve body, a front end cover and a rear end cover are respectively arranged at two ends of the valve body, a rotor positioned in the valve body is arranged between the front end cover and the rear end cover, and an execution device used for driving the rotor to rotate is arranged on the front end cover; the rotor comprises two rotating plates, a guide plate is arranged between the two rotating plates, and a guide arc groove is formed in the guide plate; the deflector both ends all are provided with the closing plate that is located between two rotor plates, inlay on the closing plate to be equipped with the transverse sealing strip that can contact with the valve body inner wall, and the rotor plate lateral wall inlays and is equipped with the circumference sealing strip with the contact of valve body inner wall. The utility model discloses the effect of improvement switching-over valve gas tightness has been reached.

Description

Rotor type reversing valve

Technical Field

The utility model relates to a switching-over valve field, more specifically say, it relates to a rotor formula switching-over valve.

Background

Reversing valves are important components in material conveying systems for adjusting the direction of material transfer.

The rotor type reversing valve is one of reversing valves, and the prior Chinese patent with the publication number of CN103672029A discloses a three-in-one T-shaped reversing valve which comprises a valve body and a rotor.

The reversing valve is usually used for pneumatic conveying, but a sealing device is not arranged between a valve body and a rotor of the reversing valve, so that materials are not tightly blocked during reversing, and the problems of material communication and mutual leakage of the materials in two channels are easily caused.

SUMMERY OF THE UTILITY MODEL

not enough to prior art exists, the utility model aims to provide a rotor formula switching-over valve, it has the advantage that improves the steering valve gas tightness.

In order to achieve the above purpose, the utility model provides a following technical scheme:

A rotor type reversing valve comprises a valve body, wherein a feeding pipe, a first discharging pipe and a second discharging pipe are respectively communicated with the side wall of the valve body;

A front end cover and a rear end cover are respectively arranged at two ends of the valve body, a rotor positioned in the valve body is arranged between the front end cover and the rear end cover, and an execution device for driving the rotor to rotate is arranged on the front end cover;

The rotor comprises two rotating plates, a guide plate is arranged between the two rotating plates, and a guide arc groove is formed in the guide plate;

The two ends of the guide plate are respectively provided with a sealing plate positioned between the two rotating plates, a transverse sealing strip capable of contacting with the inner wall of the valve body is embedded on the sealing plate, and a circumferential sealing strip contacting with the inner wall of the valve body is embedded on the side wall of the rotating plate;

The front end cover is respectively provided with a first positioning column and a second positioning column, and the rotating plate is respectively provided with a first positioning block and a second positioning block;

when the first positioning column is in contact with the first positioning block, the feeding pipe, the guide arc groove and the first discharging pipe are communicated, and when the second positioning column is in contact with the second positioning block, the feeding pipe, the guide arc groove and the second discharging pipe are communicated.

further, a supporting transverse plate is arranged between the two rotating plates.

Furthermore, a supporting inclined plate is arranged between the rotating plate and the guide plate.

furthermore, a first rotating shaft connected with the execution device is arranged on one rotating plate, and a second rotating shaft is arranged on the other rotating plate; the first rotating shaft is sleeved with a first shaft sleeve penetrating through the front end cover, and the second rotating shaft is sleeved with a second shaft sleeve penetrating through the rear end cover.

furthermore, the end part of the second rotating shaft is provided with a pointer.

furthermore, a front spigot matched with the valve body is arranged on the front end cover.

furthermore, the front end cover is provided with an end cover sealing ring groove at the front stop opening, and an end cover sealing ring is embedded in the end cover sealing ring groove.

to sum up, the utility model discloses following beneficial effect has:

1. the transverse sealing strips and the circumferential sealing strips are adopted, so that the effect of improving the air tightness of the reversing valve is achieved;

2. The supporting transverse plates and the supporting inclined plates are adopted, so that the effect of improving the structural strength and the stability of the rotor is achieved;

3. the pointer is adopted, so that the effect of conveniently indicating the communication direction of the reversing valve is achieved.

drawings

FIG. 1 is a schematic view of the overall structure of a rotor type reversing valve in the embodiment;

FIG. 2 is a first cross-sectional view of a rotor type directional control valve in the embodiment;

FIG. 3 is a first view of the structure of the rotor in the embodiment;

FIG. 4 is a second view of the structure of the rotor in the embodiment;

FIG. 5 is a sectional view of a rotor in the embodiment;

FIG. 6 is an exploded schematic view of the rotary type reversing valve in the embodiment;

FIG. 7 is a second sectional view of the rotor type directional control valve in the embodiment;

Fig. 8 is an enlarged schematic view of a portion a of fig. 7.

In the figure: 1. a valve body; 11. a feed pipe; 12. a first discharge pipe; 13. a second discharge pipe; 2. a rear end cap; 21. a rear mounting hole; 3. a front end cover; 31. positioning holes; 32. a front mounting hole; 33. a front spigot; 34. end cover sealing ring grooves; 4. an execution device; 5. a rotor; 51. a rotating plate; 511. a circumferential sealing ring groove; 52. a sealing plate; 521. a transverse seal groove; 53. a guide plate; 54. a guide arc groove; 55. supporting the transverse plate; 56. supporting the inclined plate; 57. a first rotating shaft; 571. a first bushing; 58. a second rotating shaft; 581. a second shaft sleeve; 59. a pointer; 61. a first positioning post; 62. a second positioning column; 63. a first positioning block; 64. and a second positioning block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

a rotor type reversing valve, referring to fig. 1 and fig. 2, comprises a valve body 1, wherein the side wall of the valve body 1 is respectively communicated with a feeding pipe 11, a first discharging pipe 12 and a second discharging pipe 13, and the valve body 1, the feeding pipe 11, the first discharging pipe 12 and the second discharging pipe 13 are integrally in an inverted Y shape; the two ends of the valve body 1 are both arranged in an opening manner, the end parts of the valve body are respectively provided with a front end cover 3 and a rear end cover 2, and a rotor 5 positioned in the valve body 1 is arranged between the front end cover 3 and the rear end cover 2; the front end cover 3 is provided with an actuating device 4 for driving the rotor 5 to rotate, the actuating device 4 in the present embodiment adopts a cylinder and gear rack mechanism, which is the prior art, and the structure thereof is disclosed in the patent with the publication number CN207246489U, which is not described in detail in the present embodiment.

Referring to fig. 3 and 4, the rotor 5 includes two circular rotating plates 51, a guide plate 53 is connected between the two rotating plates 51, and a guide arc groove 54 is formed on the guide plate 53; the two ends of the guide plate 53 are both provided with a sealing plate 52, and the end part of the sealing plate 52 is connected with the rotating plate 51; the sealing plate 52 is provided with a transverse sealing groove 521, the outer circumferential side wall of the rotating plate 51 is provided with a circumferential sealing ring groove 511, and the transverse sealing groove 521 is communicated with the circumferential sealing ring groove 511 in the embodiment; a transverse sealing strip capable of contacting with the inner wall of the valve body 1 (refer to fig. 2) is embedded in the transverse sealing groove 521, a circumferential sealing strip contacting with the inner wall of the valve body 1 is embedded in the circumferential sealing ring groove 511, and the transverse sealing strip and the circumferential sealing strip are not shown in the attached drawings.

Referring to fig. 3 and 4, a supporting transverse plate 55 is disposed between the two rotating plates 51, and the supporting transverse plate 55 is opposite to the guide arc groove 54; a support inclined plate 56 is provided between the rotating plate 51 and the guide plate 53, and both the support inclined plate 56 and the support transverse plate 55 can improve the structural strength and the stability of the rotor 5.

Referring to fig. 5, a first rotating shaft 57 is provided on one rotating plate 51, and a second rotating shaft 58 is provided on the other rotating plate 51; a first shaft sleeve 571 is fixedly sleeved on the first rotating shaft 57, a second shaft sleeve 581 is fixedly sleeved on the second rotating shaft 58, and the cross sections of the first shaft sleeve 571 and the second shaft sleeve 581 are L-shaped; the first rotating shaft 57 is connected with the executing device 4 (refer to fig. 1), and the executing device 4 drives the rotor 5 to rotate by controlling the first rotating shaft 57; the end of the second rotating shaft 58 is provided with a pointer 59, and the pointer 59 is connected with the second rotating shaft 58 by a bolt (not shown in the drawing).

referring to fig. 6, the front end cover 3 is provided with a first positioning column 61 and a second positioning column 62 respectively, in this embodiment, the first positioning column 61 and the second positioning column 62 are bolt and nut assemblies, and the front end cover 3 is provided with two positioning holes 31 for the first positioning column 61 and the second positioning column 62 to pass through respectively; the rotating plate 51 opposite to the front end cover 3 is provided with a first positioning block 63 and a second positioning block 64 respectively, and the first positioning block 63 and the second positioning block 64 are connected with the rotating plate 51 through bolts.

Referring to fig. 7, a front mounting hole 32 for the first shaft sleeve 571 to pass through is formed in the front end cover 3, and the outer diameter of the first shaft sleeve 571 is in clearance fit with the inner diameter of the front mounting hole 32; a rear mounting hole 21 for the second shaft sleeve 581 to pass through is formed in the rear end cover 2, and the outer diameter of the second shaft sleeve 581 is in clearance fit with the inner diameter of the rear mounting hole 21; in this embodiment, the first shaft bushing 571 and the second shaft bushing 581, both of which have L-shaped cross sections, perform a limiting function, and can limit the axial position of the rotor 5.

referring to fig. 8, the front end cover 3 is provided with a front spigot 33 which is matched with the end of the valve body 1, so that the radial positions of the front end cover 3 and the valve body 1 can be limited; an end cover sealing ring groove 34 is formed in the end face of the front end cover 3 at the front spigot 33, an end cover sealing ring (not shown in the drawing) is embedded in the end cover sealing ring groove 34, and the end cover sealing ring can improve the sealing performance between the front end cover 3 and the valve body 1; the connection structure between the rear end cap 2 (see fig. 7) and the valve body 1 in this embodiment is the same as that of the front end cap 3.

The working principle is as follows:

The execution device 4 controls the rotor 5 to rotate, when the first positioning column 61 is contacted with the first positioning block 63, the feeding pipe 11, the guide arc groove 54 and the first discharging pipe 12 are in a communication state, and the indication direction of the pointer 59 is the communication direction of the reversing valve; when the second positioning column 62 contacts the second positioning block 64, the feeding pipe 11, the guiding arc groove 54 and the second discharging pipe 13 are in a communication state, and the indication direction of the pointer 59 is the communication direction of the reversing valve.

The sealing performance between rotor 5 and valve body 1 can be improved to transverse sealing strip and circumference sealing strip, and then improves the gas tightness of switching-over valve, prevents that the material from colluding and revealing each other.

Claims

1. A rotor type reversing valve is characterized in that: the device comprises a valve body (1), wherein a feeding pipe (11), a first discharging pipe (12) and a second discharging pipe (13) are respectively communicated with the side wall of the valve body (1);

A front end cover (3) and a rear end cover (2) are respectively arranged at two ends of the valve body (1), a rotor (5) positioned in the valve body (1) is arranged between the front end cover (3) and the rear end cover (2), and an execution device (4) for driving the rotor (5) to rotate is arranged on the front end cover (3);

The rotor (5) comprises two rotating plates (51), a guide plate (53) is arranged between the two rotating plates (51), and a guide arc groove (54) is formed in the guide plate (53);

Sealing plates (52) positioned between the two rotating plates (51) are arranged at two ends of the guide plate (53), transverse sealing strips capable of contacting with the inner wall of the valve body (1) are embedded in the sealing plates (52), and circumferential sealing strips contacting with the inner wall of the valve body (1) are embedded in the side walls of the rotating plates (51);

A first positioning column (61) and a second positioning column (62) are respectively arranged on the front end cover (3), and a first positioning block (63) and a second positioning block (64) are respectively arranged on the rotating plate (51);

when the first positioning column (61) is in contact with the first positioning block (63), the feeding pipe (11), the guide arc groove (54) are communicated with the first discharging pipe (12), and when the second positioning column (62) is in contact with the second positioning block (64), the feeding pipe (11), the guide arc groove (54) are communicated with the second discharging pipe (13).

2. a rotary reversing valve according to claim 1, characterized in that: a supporting transverse plate (55) is arranged between the two rotating plates (51).

3. A rotary reversing valve according to claim 1, characterized in that: a supporting inclined plate (56) is arranged between the rotating plate (51) and the guide plate (53).

4. A rotor-type reversing valve according to any one of claims 1-3, characterized in that: a first rotating shaft (57) connected with the execution device (4) is arranged on one rotating plate (51), and a second rotating shaft (58) is arranged on the other rotating plate (51); the first rotating shaft (57) is sleeved with a first shaft sleeve (571) penetrating through the front end cover (3), and the second rotating shaft (58) is sleeved with a second shaft sleeve (581) penetrating through the rear end cover (2).

5. a rotary reversing valve according to claim 4, characterized in that: and a pointer (59) is arranged at the end part of the second rotating shaft (58).

6. A rotor-type reversing valve according to any one of claims 1-3, characterized in that: the front end cover (3) is provided with a front spigot (33) matched with the valve body (1).

7. a rotary reversing valve according to claim 6, characterized in that: the front end cover (3) is provided with an end cover sealing ring groove (34) at the front spigot (33), and an end cover sealing ring is embedded in the end cover sealing ring groove (34).