CN219809421U

CN219809421U - Reliably sealed regulating valve

Info

Publication number: CN219809421U
Application number: CN202320925066.6U
Authority: CN
Inventors: 金伟国; 杜勇平; 杜金鹏; 郑棚; 徐水芬
Original assignee: Junkang Fluid Technology Co ltd
Current assignee: Junkang Fluid Technology Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-10-10
Anticipated expiration: 2033-04-18

Abstract

The utility model discloses a reliably sealed regulating valve, which comprises a valve seat, a valve core and a valve rod, wherein a mounting cavity is arranged in the middle of the valve seat, the valve core is positioned in the mounting cavity, a fixing seat for sealing the mounting cavity is arranged on the valve seat, one end of the valve rod is detachably connected with the valve core, the other end of the valve rod extends to the outer side of the fixing seat and is provided with a hand wheel, the valve core comprises a sealing plate, a flow guide plate and a cutting plate, the two sealing plates are arranged on two sides of the flow guide plate, one side of the sealing plate, which is far away from the flow guide plate, is provided with a wedge-shaped surface matched with the valve seat, a fixing block is connected between the sealing plate and the valve rod, a slideway perpendicular to the circulation direction of the valve seat is arranged on the flow guide plate, and the flow guide plate is arranged in the slideway in a sliding way.

Description

Reliably sealed regulating valve

Technical Field

The utility model discloses a reliably-sealed regulating valve, and belongs to the technical field of valves.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow rate) of a conveying medium. Depending on their function, they can be classified into shutoff valves, check valves, regulating valves, etc. The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. Valves for fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, which are quite diverse in variety and specification.

The gate valve is one of valves, and is simple in structure and wide in application, sealing of the gate valve is mainly achieved through matching of the valve core and the valve seat, in order to reduce abrasion of the valve core and the valve seat, the gate valve is long in service life, the side face of the valve core is generally provided with an inclined surface structure, abrasion of the valve core can be greatly reduced, and when the flow quantity of gate valve fluid is required to be accurately controlled, the flow rate of the fluid cannot be calculated according to the moving distance of the valve rod due to the fact that the flow area between the valve core and the matching surface of the valve seat is large in adjusting and controlling difficulty.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a regulating valve with reliable sealing.

The utility model realizes the aim through the following technical scheme that the regulating valve with reliable sealing comprises a valve seat, a valve core and a valve rod, wherein the middle part of the valve seat is provided with a mounting cavity, the valve core is positioned in the mounting cavity, the valve seat is provided with a fixing seat for sealing the mounting cavity, one end of the valve rod is detachably connected with the valve core, the other end of the valve rod extends to the outer side of the fixing seat and is provided with a hand wheel, the valve core comprises two sealing plates, two guide plates and cutting plates, the two sealing plates are positioned on two sides of the guide plates, one side of each sealing plate, which is far away from the guide plates, is provided with a wedge-shaped surface matched with the valve seat, a fixed block is connected between the sealing plates and the valve rod, the guide plates are provided with slide ways perpendicular to the flow direction of the valve seat, the guide plates are arranged in the slide ways in a sliding way, the guide plates and the cutting plates are respectively provided with a first guide hole and a second guide hole, the sealing plate is provided with a through hole for covering the first guide hole, and the valve seat and the guide plates are provided with a regulating piece for controlling the relative position of the first guide hole and the second guide hole.

Preferably, the valve seat is characterized in that an installation cavity is formed in the middle of the valve seat, the valve core is located in the installation cavity, a fixing seat for sealing the installation cavity is arranged on the valve seat, one end of the valve rod is detachably connected with the valve core, the other end of the valve rod extends to the outer side of the fixing seat and is provided with a hand wheel, the valve core comprises a sealing plate, a flow guide plate and a cutting plate, the sealing plate is provided with two sealing plates and is located on two sides of the flow guide plate, one side of the sealing plate, away from the flow guide plate, is provided with a wedge-shaped surface matched with the valve seat, a fixing block is connected between the sealing plate and the valve rod, a slideway perpendicular to the circulation direction of the valve seat is arranged on the flow guide plate, the flow guide plate is slidably arranged in the slideway, a first flow guide hole and a second flow guide hole are respectively arranged on the flow guide plate and the cutting plate, a through hole for covering the first flow guide hole is arranged on the sealing plate, and an adjusting piece for controlling the relative position of the first flow guide hole and the second flow guide hole is arranged on the valve seat and the flow guide plate.

Preferably, the pushing piece comprises a push rod and an adjusting bolt, the push rod is of a stepped shaft structure, one end of the push rod is slidably arranged in the protruding portion, the other end of the push rod can abut against the cutting plate, and the adjusting bolt is in threaded connection with the protruding portion.

Preferably, the guide plate is provided with positioning pins corresponding to two sides of the cutting plate, two sides of the cutting plate are provided with limiting grooves matched with the positioning pins, and one end of each positioning pin is provided with a threaded hole.

Preferably, a fastening bolt is connected between the two sealing plates, an annular groove is formed in one side, close to the guide plate, of each sealing plate, and a sealing ring is arranged in each annular groove.

Preferably, a sealing sleeve is arranged on the side face of the valve seat corresponding to the sealing plate, one end of the sealing sleeve is matched with the sealing plate, a ring boss is arranged on the other end of the sealing sleeve, and a bolt is arranged between the ring boss and the valve seat.

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

through setting up closing plate, guide plate and cutting off the board, rely on regulating part control cutting off the relative position of board in the guide plate for the coincidence state of first water conservancy diversion hole and second water conservancy diversion hole changes, thereby accurate control fluid's circulation, flow control easy operation, and the overall structure of case is reliable and stable, and the sealing performance of closing plate and seal cover is good.

Drawings

FIG. 1 is a schematic illustration of a reliable seal regulator valve of the present utility model;

FIG. 2 is a schematic diagram of an assembled structure of a valve element according to the present utility model;

FIG. 3 is an exploded view of the valve cartridge of the present utility model;

reference numerals: 1. a hand wheel; 2. a valve stem; 3. a fixing seat; 4. a valve seat; 5. sealing sleeve; 6. a valve core; 7. a protruding portion; 8. a mounting cavity; 9. a ring bulge; 10. cutting off the plate; 11. a fixed block; 12. a sealing plate; 13. a deflector; 14. a pushing member; 15. a first deflector aperture; 16. a fastening bolt; 17. a slideway; 18. a second deflector aperture; 19. a guide rod; 20. a spring; 21. a limit groove; 22. a seal ring; 23. an annular groove; 24. a through hole; 25. a positioning pin; 26. an adjusting bolt; 27. a 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.

As shown in fig. 1-3, a regulating valve with reliable sealing comprises a valve seat 4, a valve core 6 and a valve rod 2, wherein a mounting cavity 8 is arranged in the middle of the valve seat 4, the valve core 6 is positioned in the mounting cavity 8, a fixed seat 3 for sealing the mounting cavity 8 is arranged on the valve seat 4, one end of the valve rod 2 is detachably connected with the valve core 6, the other end extends to the outer side of the fixed seat 3 and is provided with a hand wheel 1, the valve core 6 comprises a sealing plate 12, a guide plate 13 and a cutting plate 10, the sealing plate 12 is provided with two and is positioned at two sides of the guide plate 13, one side of the sealing plate 12 far away from the guide plate 13 is provided with a wedge-shaped surface matched with the valve seat 4, a fixed block 11 is connected between the sealing plate 12 and the valve rod 2, a slide 17 vertical to the flowing direction of the valve seat 4 is arranged on the guide plate 13, the guide plate 13 is slidably arranged in the slide 17, a first guide hole 15 and a second guide hole 18 are respectively arranged on the guide plate 13 and the cutting plate 10, the sealing plate 12 is provided with a through hole 24 covering the first diversion hole 15, the valve seat 4 and the diversion plate 13 are provided with adjusting pieces for controlling the relative positions of the first diversion hole 15 and the second diversion hole 18, each adjusting piece comprises a spring 20, a guide rod 19 and a pushing piece 14, the guide rod 19 and the pushing piece 14 are respectively positioned at the upper side and the lower side of the cutting plate 10, one end of the guide rod 19 passes through the fixed block 11 and is positioned in the valve rod 2, the other end is fixedly connected with the cutting plate 10, the spring 20 is sleeved at the outer side of the guide rod 19, the two ends respectively collide with the fixed block 11 and the cutting plate 10, the valve seat 4 is provided with a protruding part 7, one end of the pushing piece 14 is arranged in the protruding part 7, the other end extends to the inner side of the valve seat 4, the pushing piece 14 is utilized to push the cutting plate 10 upwards and compress the spring 20, so that the first diversion hole 15 and the second diversion hole 18 are in a non-coincident state, the valve core 6 can accurately control the fluid flow amount by only controlling the moving distance of the pushing piece 14 in the process until the partial overlapping is completed, and meanwhile, the fluid flow can be completely blocked, the operation is simple and convenient, and the spring 20 cannot deviate during the installation and compression under the positioning of the guide rod 19.

The pushing piece 14 comprises a pushing rod 27 and an adjusting bolt 26, the pushing rod 27 is of a stepped shaft structure, one end of the pushing rod 27 is slidably arranged in the protruding portion 7, the other end of the pushing rod can be abutted against the cutting plate 10, the adjusting bolt 26 is in threaded connection with the protruding portion 7, the adjusting bolt 26 is pushed to rotate, the pushing rod 27 can move upwards and push the cutting plate 10, threads on the adjusting bolt 26 are not directly exposed on the inner side of the valve seat 4, the influence of fluid medium on the pushing rod can be effectively avoided, positioning pins 25 are arranged on two sides of the guide plate 13, which correspond to the cutting plate 10, two sides of the cutting plate 10 are provided with limiting grooves 21 matched with the positioning pins 25, threaded holes are formed in one end of the positioning pins 25, when the cutting plate 10 slides downwards along the sliding way 17 under the action of elasticity of the spring 20, one end of the limiting grooves 21 can be positioned by the positioning pins 25, the sliding distance of the cutting plate 10 is controlled within a certain range, when the valve rod 2 drives the valve core 6 to move upwards, the cutting plate 10 cannot drop out from the guide plate 13, when the cutting plate 10 is located at the lowest position, the first guide hole 15 and the second guide hole 18 are coincident with the second guide 18, and the valve core 10 can be completely opened when the valve core 10 is not closed.

The sealing sleeve is characterized in that a fastening bolt 16 is connected between the two sealing plates 12, an annular groove 23 is formed in one side, close to the guide plate 13, of the sealing plate 12, a sealing ring 22 is arranged in the annular groove 23, the two sealing plates 12 are connected together by the fastening bolt 16, the integral strength of the valve core 6 can be improved, the sealing ring 22 can ensure that no fluid leakage occurs between the sealing plate 12 and the guide plate 13, the sealing sleeve 5 is arranged on the side surface, corresponding to the sealing plate 12, of the valve seat 4, one end of the sealing sleeve 5 is matched with the sealing plate 12, the annular protrusion 9 is arranged on the other end of the sealing sleeve, a bolt is arranged between the annular protrusion 9 and the valve seat 4, the sealing sleeve 5 can be used for reducing the processing difficulty of sealing between the sealing plate 12 and the valve seat 4, meanwhile, the sealing sleeve 5 can be replaced at any time, the sealing sleeve 5 can be positioned by the bolt during installation, the sealing property between the sealing plate 12 and the sealing sleeve 5 can be ensured, and the service life of the valve can be prolonged.

Working principle: by rotating the hand wheel 1, the valve rod 2 drives the valve core 6 to move downwards, sealing is realized after the sealing plate 12 and the sealing sleeve 5 are matched through a wedge surface, the valve is closed, when the valve needs to be opened and the flow quantity of fluid is controlled, by rotating the adjusting bolt 26, the push rod 27 moves upwards and pushes the cutting plate 10 to slide in the slideway 17, the first diversion hole 15 and the second diversion hole 18 are overlapped slowly, the flow quantity of fluid can be precisely controlled by the overlapped area of the first diversion hole 15 and the second diversion hole 18, and thus, the regulation of the flow quantity of fluid is realized, and when the valve needs to be kept in a fully opened state, the hand wheel 1 is rotated reversely, the valve rod 2 is driven to drive the valve core 6 to move upwards.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a reliably sealed governing valve, includes disk seat (4), case (6) and valve rod (2), its characterized in that, the middle part of disk seat (4) is provided with installation cavity (8), case (6) are located installation cavity (8), be provided with fixing base (3) that are used for sealed installation cavity (8) on disk seat (4), one end and case (6) of valve rod (2) can dismantle the connection, and the other end extends to the outside of fixing base (3) and is provided with hand wheel (1), case (6) include closing plate (12), deflector (13) and shut off plate (10), closing plate (12) are provided with two to be located the both sides of deflector (13), one side that deflector (13) were kept away from to closing plate (12) has the wedge face with disk seat (4) complex, and is connected with fixed block (11) between deflector (12) and valve rod (2), be provided with on deflector (13) with slide (17) perpendicular with disk seat (4) circulation direction, deflector (13) slide setting up in shut off plate (17) and deflector (13) and second orifice (15) and second orifice (18) are provided with respectively, the sealing plate (12) is provided with a through hole (24) for covering the first diversion hole (15), and the valve seat (4) and the diversion plate (13) are provided with adjusting pieces for controlling the relative positions of the first diversion hole (15) and the second diversion hole (18).

2. The reliably sealed regulating valve according to claim 1, wherein the regulating member comprises a spring (20), a guide rod (19) and a pushing member (14), the guide rod (19) and the pushing member (14) are respectively located at the upper side and the lower side of the cutting plate (10), one end of the guide rod (19) penetrates through the fixed block (11) and is located in the valve rod (2), the other end of the guide rod is fixedly connected with the cutting plate (10), the spring (20) is sleeved on the outer side of the guide rod (19), two ends of the spring respectively abut against the fixed block (11) and the cutting plate (10), a protruding portion (7) is arranged on the valve seat (4), one end of the pushing member (14) is installed in the protruding portion (7), and the other end of the guide rod extends to the inner side of the valve seat (4).

3. A reliably sealed regulating valve according to claim 2, characterized in that the pushing member (14) comprises a push rod (27) and a regulating bolt (26), the push rod (27) is of a stepped shaft structure, one end of the push rod is slidably arranged in the protruding part (7), the other end of the push rod can abut against the cutting plate (10), and the regulating bolt (26) is in threaded connection with the protruding part (7).

4. The reliably sealed regulating valve according to claim 1, wherein positioning pins (25) are arranged on two sides of the guide plate (13) corresponding to the cutting plate (10), limiting grooves (21) matched with the positioning pins (25) are arranged on two sides of the cutting plate (10), and threaded holes are formed in one end of the positioning pins (25).

5. A reliably sealed regulating valve according to claim 1, characterized in that a fastening bolt (16) is connected between two sealing plates (12), an annular groove (23) is provided in the side of the sealing plate (12) close to the deflector (13), and a sealing ring (22) is provided in the annular groove (23).

6. The reliably sealed regulating valve according to claim 1, characterized in that the side of the valve seat (4) corresponding to the sealing plate (12) is provided with a sealing sleeve (5), one end of the sealing sleeve (5) is matched with the sealing plate (12), the other end is provided with a ring bulge (9), and a bolt is arranged between the ring bulge (9) and the valve seat (4).