CN220600492U

CN220600492U - Hydraulic plug valve

Info

Publication number: CN220600492U
Application number: CN202322261042.8U
Authority: CN
Inventors: 刘长志; 张永琴; 薛继飞
Original assignee: Jiangsu Rongling Machinery Manufacturing Co ltd
Current assignee: Jiangsu Rongling Machinery Manufacturing Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-03-15
Anticipated expiration: 2033-08-22

Abstract

The utility model provides a hydraulic plug valve, which comprises a valve body, wherein a liquid inlet and a liquid outlet are respectively arranged at two ends of the valve body, a plunger is rotatably arranged in the valve body between the liquid inlet and the liquid outlet, a through passage is arranged on the surface of the plunger, two connecting grooves are symmetrically formed on the top surface and the bottom surface of the plunger, a chute is arranged in the valve body between the plunger and the liquid inlet and between the plunger and the liquid outlet, and a movable plate is slidably arranged in the chute; according to the utility model, through the components such as the connecting groove, the connecting column and the movable plate, when the plunger is opened and closed, the rubber sealing element on the movable plate can be tightly attached to the surface of the plunger to seal the periphery of the passage, and meanwhile, in the process of rotating the plunger, the rubber sealing element is far away from the plunger, so that the friction between the plunger and the rubber sealing element is reduced, the service life of the rubber sealing element is prolonged, and the service life of the plunger is prolonged.

Description

Hydraulic plug valve

Technical Field

The utility model belongs to the technical field of plug valves, and particularly relates to a hydraulic plug valve.

Background

The plug valve is a closing member or a plunger-shaped rotary valve, a passage opening on the plug is communicated with or separated from a passage opening on the valve body by rotating by 90 degrees, and the hydraulic plug valve is a valve which is opened or closed by controlling the opening and closing state of the valve body by using a hydraulic actuator.

At present, in order to prevent that the valve body from leaking when closed state, fluid in the passageway can set up the rubber circle between the plunger and the valve body of plug valve and seal, because the opening and the closure of plug valve are realized through the rotation of plunger, and in order to guarantee the airtight performance of valve body, closely laminate between rubber circle and the plunger usually, this just leads to opening at the valve plate and the in-process of closure, can produce the friction with between the rubber circle, the rubber circle can lead to sealing performance reduction because of wearing and tearing to influence the normal use of valve body.

In summary, the present utility model provides a hydraulic plug valve to solve the above problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a hydraulic plug valve, which solves the problem that in the prior art, a rubber sealing element in the hydraulic plug valve can cause performance degradation due to abrasion, so that the normal use of the plug valve is affected.

The utility model provides a hydraulic plug valve, includes the valve body, the both ends of valve body are provided with inlet and liquid outlet respectively, the valve body is inside be in the inlet with rotate between the liquid outlet and install the plunger, the surface of plunger begins to have the passageway that runs through, two spread grooves have all been seted up to the equal symmetry of top side surface and the bottom side surface of plunger, the valve body is inside the plunger with the inlet and the plunger with begin to have the spout between the liquid outlet, the inside of spout is equal slidable mounting has the fly leaf, the fly leaf is close to the top and the bottom of plunger one side all are provided with the connecting rod, same two contralateral of connecting rods all are provided with the spliced pole on the fly leaf, and two the spliced pole penetrates respectively one of plunger top and bottom in the spread groove.

Further, the middle parts of the movable plates are provided with through grooves, the through grooves are equal to the plungers in shape and size, and the positions of the through grooves correspond to the positions of the plungers.

Further, a rubber sealing member is arranged around the through groove on one side of the movable plate, which is close to the plunger.

Further, the connecting grooves are arc-shaped, the distances from the two ends of the connecting grooves to the center of the plunger are equal, and the distance from the middle of the connecting grooves to the center of the plunger is greater than the distance from the two ends of the connecting grooves to the center of the plunger.

Further, the mounting groove has been seted up at the top of valve body, the top center of plunger is provided with the transmission shaft, the transmission shaft top penetrates in the mounting groove, and the one end fixedly connected with gear that penetrates, the inside of mounting groove still slidable mounting has the rack, just the rack with the meshing links to each other between the gear.

Further, a hydraulic push rod is fixedly arranged on one side of the surface of the valve body, and the pushing end of the hydraulic push rod penetrates into the mounting groove and is connected with one end of the rack.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the components such as the connecting groove, the connecting column and the movable plate, when the plunger is opened and closed, the rubber sealing element on the movable plate can be tightly attached to the surface of the plunger to seal the periphery of the passage, and meanwhile, in the process of rotating the plunger, the rubber sealing element is far away from the plunger, so that the friction between the plunger and the rubber sealing element is reduced, the service life of the rubber sealing element is prolonged, and the service life of the plunger is prolonged.

Drawings

FIG. 1 is a schematic perspective view of the outside of the present utility model;

FIG. 2 is a schematic plan sectional view of the present utility model;

FIG. 3 is a schematic perspective view of the inside of the present utility model;

fig. 4 is an enlarged partial schematic view of the present utility model at a in fig. 2.

In the figure:

1. a valve body; 2. a liquid inlet; 3. a liquid outlet; 4. a plunger; 5. a passage; 6. a connecting groove; 7. a chute; 8. a movable plate; 9. a connecting rod; 10. a connecting column; 11. a through groove; 12. a rubber seal; 13. a mounting groove; 14. a transmission shaft; 15. a gear; 16. a rack; 17. and (5) a hydraulic push rod.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1-4, the utility model provides a hydraulic plug valve, which comprises a valve body 1, wherein two ends of the valve body 1 are respectively provided with a liquid inlet 2 and a liquid outlet 3, a plunger 4 is rotatably arranged between the liquid inlet 2 and the liquid outlet 3 in the valve body 1, a through passage 5 is arranged on the surface of the plunger 4, two connecting grooves 6 are symmetrically arranged on the top surface and the bottom surface of the plunger 4, a sliding groove 7 is arranged between the plunger 4 and the liquid inlet 2 and between the plunger 4 and the liquid outlet 3 in the valve body 1, a movable plate 8 is slidably arranged in the sliding groove 7, connecting rods 9 are respectively arranged at the top and the bottom of one side, close to the plunger 4, of the movable plate 8, connecting columns 10 are respectively arranged at opposite sides of the two connecting rods 9 on the same movable plate 8, and the two connecting columns 10 respectively penetrate into one connecting groove 6 at the top and the bottom of the plunger 4.

Wherein, the middle part of fly leaf 8 all begins to have the logical groove 11 that runs through, and the shape size of logical groove 11 and plunger 4 equals, and the position corresponds, and fluid can pass from logical inslot 11, and when logical groove 11 and passageway 5 coincide, fluid can further pass from whole valve body 1 inside, and when passageway 5 stagger with logical groove 11, the fluid can be stopped by plunger 4 this moment, and rubber seal 12 on fly leaf 8 also can prevent that the fluid from flowing away around plunger 4 simultaneously.

Wherein, the side of the movable plate 8 near the plunger 4 is provided with a rubber sealing element 12 around the through groove 11, and the rubber sealing element 12 seals the periphery of the passage 5 of the plunger 4.

Wherein, spread groove 6 is arc style, the distance of spread groove 6 both ends to plunger 4 center equals, and the distance of spread groove 6 middle part to plunger 4 center is greater than the distance of spread groove 6 both ends to plunger 4 center, plunger 4 is in the both ends of spread groove 6 when opening with closed condition, fly leaf 8 is nearest to plunger 4 this moment, can make rubber seal 12 laminating at the surface of plunger 4, thereby realize the sealing to valve body 1 when plunger 4 is closed with open condition, simultaneously at valve body 1 pivoted in-process, the spread column 10 is in between the both ends of spread groove 6 this moment, this moment fly leaf 8 can drive rubber seal 12 and leave the surface of plunger 4, thereby reduce the wearing and tearing that rubber seal 12 received.

Wherein, mounting groove 13 has been seted up at the top of valve body 1, the top center of plunger 4 is provided with transmission shaft 14, the transmission shaft 14 top penetrates in the mounting groove 13, and the one end fixedly connected with gear 15 that penetrates, the inside of mounting groove 13 still slidable mounting has rack 16, and the meshing links to each other between rack 16 and the gear 15, the in-process of rack 16 in mounting groove 13 removal can drive gear 15 and rotate, gear 15 drives plunger 4 through transmission shaft 14 and rotates together, thereby realize the control to valve body 1 start-stop.

Wherein, a hydraulic push rod 17 is fixedly arranged on one side of the surface of the valve body 1, and the pushing end of the hydraulic push rod 17 penetrates into the mounting groove 13 and is connected with one end of the rack 16, and the rack 16 is pushed to move in the mounting groove 13 by the hydraulic push rod 17.

The specific working principle is as follows:

when the plunger 4 is turned on or closed, the connecting column 10 on the connecting plate is positioned in the connecting groove 6 on the plunger 4, the distance between the movable plate 8 and the plunger 4 is changed due to the position of the connecting column 10 in the arc-shaped groove along with the rotation of the plunger 4, when the connecting column 10 is positioned at two ends of the connecting groove 6, the distance between the movable plate 8 and the plunger 4 is nearest, and when the connecting column 10 is positioned between two ends of the connecting groove 6, the movable plate 8 is far away from the plunger 4, so that when the plunger 4 is turned on or closed, the rubber sealing element 12 on the movable plate 8 can be tightly attached to the surface of the plunger 4, the rubber sealing element 12 on the periphery of the plunger 5 is enabled to be tightly attached to the surface of the plunger 4, the rubber sealing element 12 on the periphery of the plunger 4 is enabled to be far away from the rubber sealing element 12, and the service life of the plunger 4 is prolonged, and the rubber sealing element 12 is enabled to be further prolonged.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. A hydraulic plug valve is characterized in that: including valve body (1), the both ends of valve body (1) are provided with inlet (2) and liquid outlet (3) respectively, valve body (1) is inside inlet (2) with rotate between liquid outlet (3) and install plunger (4), the surface of plunger (4) begins to have passageway (5) that run through, two spread grooves (6) have all been seted up to the equal symmetry of top surface and bottom surface of plunger (4), valve body (1) is inside plunger (4) with inlet (2) and plunger (4) with begin to have spout (7) between liquid outlet (3), the inside of spout (7) is equal slidable mounting has fly leaf (8), fly leaf (8) are close to top and the bottom of plunger (4) one side all are provided with connecting rod (9), same the offside of two connecting rods (9) on fly leaf (8) all are provided with spliced pole (10), and two spliced pole (10) penetrate respectively plunger (4) with in one of them spread groove (6) of bottom.

2. The hydraulic plug valve of claim 1, wherein: the middle parts of the movable plates (8) are provided with through grooves (11) which penetrate through, and the through grooves (11) are equal to the plungers (4) in shape and size and correspond to the plungers in position.

3. The hydraulic plug valve of claim 2, wherein: a rubber sealing element (12) is arranged around the through groove (11) on one side of the movable plate (8) close to the plunger (4).

4. The hydraulic plug valve of claim 1, wherein: the connecting grooves (6) are arc-shaped, the distances from the two ends of the connecting grooves (6) to the center of the plunger (4) are equal, and the distances from the middle of the connecting grooves (6) to the center of the plunger (4) are larger than the distances from the two ends of the connecting grooves (6) to the center of the plunger (4).

5. The hydraulic plug valve of claim 1, wherein: the top of valve body (1) has seted up mounting groove (13), the top center of plunger (4) is provided with transmission shaft (14), transmission shaft (14) top penetrates in mounting groove (13), and the one end fixedly connected with gear (15) that penetrates, rack (16) are still installed to the inside slidable of mounting groove (13), just rack (16) with the meshing links to each other between gear (15).

6. The hydraulic plug valve of claim 5, wherein: one side of the surface of the valve body (1) is fixedly provided with a hydraulic push rod (17), and the pushing end of the hydraulic push rod (17) penetrates into the mounting groove (13) and is connected with one end of the rack (16).