CN219911852U

CN219911852U - Reversing valve

Info

Publication number: CN219911852U
Application number: CN202321334807.XU
Authority: CN
Inventors: 韦鹏; 游继志
Original assignee: Shanghai Yanshang Hydraulic Equipment Co ltd
Current assignee: Shanghai Yanshang Hydraulic Equipment Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-27
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a reversing valve, in particular to the technical field of reversing valves, which comprises a valve body, wherein a valve core is arranged in the valve body, a valve rod is fixedly arranged on the valve core, the front end of the valve rod is rotationally connected with the inner wall of the front end of the valve body, the rear end of the valve rod penetrates through the valve body and extends to the rear side of the valve body, a groove is formed in the valve body, a sealing ring is arranged in the groove, the inner wall of the sealing ring is contacted with the outer wall of the valve rod, and an adjusting assembly is arranged at the rear side of the sealing ring. According to the utility model, the valve rod drives the valve core to rotate to seal the two liquid outlet pipes respectively, so that the reversing of the valve body is realized, the sealing ring in the groove plays a sealing role on the outer wall of the valve rod, the two electric push rods are used for driving the two moving plates to move respectively, the connecting rods on the two moving plates drive the first annular plate to move forward in the groove to squeeze the sealing ring, the tightness between the sealing ring and the valve rod is improved, and the problem that the sealing ring is reduced due to long-term abrasion of the inner wall of the sealing ring by the valve rod can be avoided.

Description

Reversing valve

Technical Field

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

Background

Reversing valves are often used in hydraulic systems to control the direction of flow of a fluid. The reversing valve is a directional control valve with more than two flowing forms and more than two oil ports, is a valve for realizing communication, cutting-off and reversing of hydraulic oil flow, pressure unloading and sequential action control, and is divided into two positions, three positions and the like according to the number of working positions of the valve core staying in the valve body; the valve is divided into two-way, three-way, four-way, six-way and the like according to the number of oil ways connected with the valve body; the valve core is operated in a manual, motor, electric, hydraulic, electrohydraulic and other modes.

For example, the three-way reversing valve with the prior art publication number of CN207229824U comprises a valve body, wherein one end of the valve body is provided with an opening, the valve body comprises a first annular groove arranged on the outer wall of one side of the valve body close to the opening, a second annular groove arranged on the end face of one side of the valve body far away from the opening, a connecting groove for communicating the first annular groove and the second annular groove, and a sealing part arranged on the first annular groove, the second annular groove and the connecting groove.

Above-mentioned prior art plays sealed effect through using interior sealing washer in the caulking groove, after long-time use, because the valve rod rotation can cause the friction to interior sealing washer inner wall for interior sealing washer inner wall wearing and tearing, thereby can influence the leakproofness to the caulking groove.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the reversing valve, wherein the valve rod drives the valve core to rotate to seal the two liquid outlet pipes respectively, so that the reversing of the valve body is realized, the sealing ring in the groove plays a sealing role on the outer wall of the valve rod, the two electric push rods are used for driving the two moving plates to move respectively, the connecting rods on the two moving plates drive the first annular plate to move forward in the groove to squeeze the sealing ring, the tightness between the sealing ring and the valve rod is improved, and the problem that the sealing ring is reduced due to long-term abrasion of the inner wall of the sealing ring by the valve rod is avoided, so that the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a reversing valve, includes the valve body, the inside case that is equipped with of valve body, the fixed valve rod that is equipped with on the case, valve rod front end and valve body front end inner wall rotate to be connected, the valve rod rear end runs through the valve body and extends to the valve body rear side, the inside recess of seting up of valve body, the inside sealing washer that is equipped with of recess, the sealing washer inner wall contacts with the valve rod outer wall, the sealing washer rear side is equipped with adjusting part for adjust the position of sealing washer, adjusting part includes first annular plate, first annular plate slides and establishes in the recess, and first annular plate front end and sealing washer rear side contact, first annular plate rear end is fixed with four connecting rods, and every connecting rod rear end all runs through the valve body and extends to the valve body outside, and four connecting rod rear sides are fixed to be equipped with same second annular plate.

In a preferred embodiment, the top of the front end of the second annular plate and the bottom of the front end are both fixedly provided with movable plates, the front ends of the two movable plates are both fixedly provided with electric push rods, the two electric push rods are embedded in the rear end of the valve body, and the position of the second annular plate is adjusted by means of the electric push rods, so that the valve is more time-saving and labor-saving to use.

In a preferred embodiment, the back sides of the top and the bottom of the valve body are provided with caulking grooves, and the two electric push rods are respectively fixed in the caulking grooves, so that the stability of the electric push rods in use is improved.

In a preferred embodiment, the top end of the valve body is provided with a liquid inlet pipe in a penetrating manner, two sides of the bottom end of the valve body are provided with liquid outlet pipes in a penetrating manner, and flanges are fixedly arranged on the outer walls of the liquid outlet pipes and the liquid inlet pipes and used for connecting the liquid outlet pipes and the liquid inlet pipes in an external manner.

In a preferred embodiment, the rear end of the valve body is provided with a servo motor, the bottom of the servo motor is fixedly provided with a mounting seat, the front end of the mounting seat is fixedly connected with the rear end of the valve body, and the valve rod is driven to rotate by the servo motor, so that automatic adjustment of the valve rod is realized, and the valve rod is more time-saving and labor-saving to use.

In a preferred embodiment, the valve body bottom is fixedly provided with the base, the base cross section is set to be reverse T-shaped, two mounting holes distributed in the front and the back are formed in two sides of the base bottom, the valve rod is driven to rotate by means of the servo motor, automatic adjustment of the valve rod is achieved, and time and labor are saved in use.

In a preferred embodiment, the outlet is formed in the front end of the valve body, a sealing plate is arranged in the outlet, the sealing plate is fixedly connected with the valve body through a plurality of screws, the sealing plate is convenient to install and detach, and a user can clean the interior of the valve body conveniently.

The utility model has the technical effects and advantages that:

1. according to the utility model, the valve rod drives the valve core to rotate to seal the two liquid outlet pipes respectively, so that the reversing of the valve body is realized, the sealing ring in the groove plays a sealing role on the outer wall of the valve rod, the two electric push rods are used for driving the two moving plates to move respectively, the connecting rods on the two moving plates drive the first annular plate to move forward in the groove to squeeze the sealing ring, the tightness between the sealing ring and the valve rod is improved, and the problem that the sealing ring is reduced due to long-term abrasion of the inner wall of the sealing ring by the valve rod can be avoided.

2. Through the detachable closing plate of valve rod front end installation, after long-term use, the user can unpack the closing plate and clear up the valve body inside, avoids the material of carrying to remain and influences the leakproofness between case and the valve rod, uses servo motor drive valve rod autogiration, does not need manual regulation, uses very labour saving and time saving.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of a valve body of the present utility model;

FIG. 3 is a rear elevational view of the overall structure of the present utility model;

FIG. 4 is a partial cross-sectional view of the present utility model;

fig. 5 is an enlarged view of the portion a of fig. 4 according to the present utility model.

The reference numerals are: 1. a valve body; 2. a valve core; 3. a valve stem; 4. a groove; 5. a seal ring; 6. an adjustment assembly; 7. a caulking groove; 8. a liquid inlet pipe; 9. a liquid outlet pipe; 10. a servo motor; 11. a mounting base; 12. a base; 13. a sealing plate;

601. a first annular plate; 602. a connecting rod; 603. a second annular plate; 604. a moving plate; 605. an electric push rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to the accompanying drawings 1-5 of the specification, the utility model provides a reversing valve, which comprises a valve body 1, wherein a liquid inlet pipe 8 is penetrated through the top end of the valve body 1, liquid outlet pipes 9 are penetrated through both sides of the bottom end of the valve body 1, flanges are fixedly arranged on the outer walls of the liquid outlet pipes 9 and the liquid inlet pipes 8 and used for externally connecting the liquid outlet pipes 9 and the liquid inlet pipes 8, a valve core 2 is arranged in the valve body 1, a valve rod 3 is fixedly arranged on the valve core 2, the front end of the valve rod 3 is rotationally connected with the inner wall of the front end of the valve body 1, the rear end of the valve rod 3 penetrates through the valve body 1 and extends to the rear side of the valve body 1, a groove 4 is formed in the valve body 1, a sealing ring 5 is arranged in the groove 4, the inner wall of the sealing ring 5 is contacted with the outer wall of the valve rod 3, and an adjusting component 6 is arranged on the rear side of the sealing ring 5 and used for adjusting the position of the sealing ring 5;

specifically, the adjusting component 6 includes a first ring plate 601, the first ring plate 601 is slidably disposed in the groove 4, the front end of the first ring plate 601 contacts with the rear side of the sealing ring 5, four connecting rods 602 are fixedly disposed at the rear end of the first ring plate 601, the rear end of each connecting rod 602 penetrates through the valve body 1 and extends to the outer side of the valve body 1, and the same second ring plate 603 is fixedly disposed at the rear side of the four connecting rods 602;

and the movable plates 604 are fixedly arranged at the top of the front end of the second annular plate 603 and at the bottom of the front end of the second annular plate 603, the electric push rods 605 are fixedly arranged at the front ends of the two movable plates 604, the two electric push rods 605 are embedded in the rear end of the valve body 1, and the position of the second annular plate 603 is adjusted by means of the electric push rods 605, so that the electric valve is more time-saving and labor-saving in use.

When the valve is used, a user connects the liquid inlet pipe 8 and the two liquid outlet pipes 9 with external pipelines respectively, liquid flows into the valve body 1 through the liquid inlet pipe 8, then the valve rod 3 is utilized to drive the valve core 2 to rotate to seal the two liquid outlet pipes 9 respectively, the reversing of the valve body 1 is realized, the sealing ring 5 in the groove 4 plays a sealing role on the outer wall of the valve rod 3, leakage is prevented, the two electric push rods 605 are used for driving the two moving plates 604 to move respectively, the connecting rods 602 on the two moving plates 604 drive the first annular plate 601 to move forwards in the groove 4 to squeeze the sealing ring 5, the tightness between the sealing ring 5 and the valve rod 3 is improved, and therefore the problem that the inner wall of the sealing ring 5 is worn by the valve rod 3 for a long time, and the sealing performance of the sealing ring 5 is reduced is avoided.

Referring to the accompanying drawings 1-5 of the specification, the utility model provides a reversing valve, wherein the back sides of the top and the bottom of a valve body 1 are respectively provided with caulking grooves 7, two electric push rods 605 are respectively fixed in the two caulking grooves 7, so that the stability of the electric push rods 605 in use is improved, the back end of the valve body 1 is provided with a servo motor 10, the bottom of the servo motor 10 is fixedly provided with a mounting seat 11, the front end of the mounting seat 11 is fixedly connected with the back end of the valve body 1, and the valve rod 3 is driven to rotate by the servo motor 10, so that the automatic adjustment of the valve rod 3 is realized, and the reversing valve is more time-saving and labor-saving in use;

and the bottom of the valve body 1 is fixedly provided with the base 12, the section of the base 12 is in an inverted T shape, two mounting holes which are distributed front and back are formed in two sides of the bottom of the base 12, the stability of the valve body 1 in use is improved, the front end of the valve body 1 is provided with an outlet, a sealing plate 13 is arranged in the outlet, the sealing plate 13 is fixedly connected with the valve body 1 through a plurality of screws, the sealing plate 13 is convenient to mount and dismount, and a user can clean the inside of the valve body 1 conveniently.

Through the detachable sealing plate 13 of valve rod 3 front end installation, after long-term use, the user can unpack the sealing plate 13 and clear up valve body 1 inside, avoids the material of carrying to remain and influences the leakproofness between case 2 and the valve rod 3, uses servo motor 10 drive valve rod 3 autogiration, does not need manual regulation, uses very labour saving and time saving.

Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. Reversing valve, comprising a valve body (1), characterized in that: the valve is characterized in that a valve core (2) is arranged in the valve body (1), a valve rod (3) is fixedly arranged on the valve core (2), the front end of the valve rod (3) is rotationally connected with the inner wall of the front end of the valve body (1), and the rear end of the valve rod (3) penetrates through the valve body (1) and extends to the rear side of the valve body (1);

the valve is characterized in that a groove (4) is formed in the valve body (1), a sealing ring (5) is arranged in the groove (4), the inner wall of the sealing ring (5) is contacted with the outer wall of the valve rod (3), and an adjusting component (6) is arranged at the rear side of the sealing ring (5) and used for adjusting the position of the sealing ring (5);

the adjusting component (6) comprises a first annular plate (601), the first annular plate (601) is slidably arranged in the groove (4), the front end of the first annular plate (601) is in contact with the rear side of the sealing ring (5), four connecting rods (602) are fixedly arranged at the rear end of the first annular plate (601), the rear end of each connecting rod (602) penetrates through the valve body (1) and extends to the outer side of the valve body (1), and the same second annular plate (603) is fixedly arranged at the rear side of each connecting rod (602).

2. A reversing valve according to claim 1, characterized in that: the top of the front end of the second annular plate (603) and the bottom of the front end are both fixedly provided with movable plates (604), the front ends of the two movable plates (604) are both fixedly provided with electric push rods (605), and the two electric push rods (605) are both embedded in the rear end of the valve body (1) and are used for adjusting the position of the second annular plate (603).

3. A reversing valve according to claim 2, characterized in that: the rear sides of the top and the bottom of the valve body (1) are provided with caulking grooves (7), and the two electric push rods (605) are respectively fixed in the caulking grooves (7).

4. A reversing valve according to claim 1, characterized in that: the utility model discloses a liquid inlet valve, including valve body (1), drain pipe (9) and feed liquor pipe (8) outer wall, valve body (1) top runs through and is equipped with feed liquor pipe (8), valve body (1) bottom both sides all run through and are equipped with drain pipe (9), drain pipe (9) and feed liquor pipe (8) outer wall all are fixed and are equipped with the flange for the external of drain pipe (9) and feed liquor pipe (8).

5. A reversing valve according to claim 1, characterized in that: the novel valve is characterized in that a servo motor (10) is arranged at the rear end of the valve body (1), an installation seat (11) is fixedly arranged at the bottom of the servo motor (10), and the front end of the installation seat (11) is fixedly connected with the rear end of the valve body (1).

6. A reversing valve according to claim 1, characterized in that: the valve is characterized in that a base (12) is fixedly arranged at the bottom of the valve body (1), the section of the base (12) is in an inverted T shape, and two mounting holes which are distributed front and back are formed in two sides of the bottom of the base (12).

7. A reversing valve according to claim 1, characterized in that: the front end of the valve body (1) is provided with an outlet, a sealing plate (13) is arranged in the outlet, and the sealing plate (13) is fixedly connected with the valve body (1) through a plurality of screws.