CN218000618U

CN218000618U - Sealing valve

Info

Publication number: CN218000618U
Application number: CN202222109768.5U
Authority: CN
Inventors: 季永平
Original assignee: Qingtian Shuangyuan Valve Co ltd
Current assignee: Qingtian Shuangyuan Valve Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-12-09
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a sealing valve, the inside of valve rod is equipped with the regulating plate, be equipped with the regulation pole on the regulating plate, the upper end of adjusting the pole is equipped with the regulating wheel, the lower extreme intercommunication piston board of regulation pole, it is connected to rotate between regulation pole and the piston board, sliding connection between piston board and the valve rod, the lower extreme of adjusting the pole is equipped with the external screw thread, the lower extreme intercommunication valve clack of valve rod, all be equipped with fine sand in valve rod and the valve clack, the lateral wall of valve clack is equipped with the valve clack hole, the lateral wall of valve clack is equipped with the sealing washer, the rotation is adjusted the pole, thereby can make the regulation pole remove downwards, can drive the piston board through the regulation pole and remove downwards, can drive the fine sand that has mobility through the piston board and remove, thereby can make fine sand get into the space between valve clack and the sealing washer through the valve clack hole on the valve clack, utilize fine sand can be with taking place the sealing washer jack-up that deforms because of receiving the extrusion, thereby can guarantee the leakproofness of valve.

Description

Sealing valve

Technical Field

The utility model relates to a valve field especially relates to a sealing valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for the valve of the fluid control system, and has quite a plurality of varieties and specifications from the simplest stop valve to various valves used in an extremely complicated automatic control system. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are further divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, non-standard valves and the like according to the materials;

the existing valve is used for a long time, and because the sealing ring on the outer side wall of the valve clack is extruded for a long time, the sealing ring is easy to deform, so that the sealing performance of the valve is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the extrusion is received for a long time to the sealing washer of valve clack lateral wall because current valve, deformation takes place very easily for the sealing washer to can lead to the leakproofness variation of valve.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a sealing valve, includes valve body and valve gap, be equipped with the valve rod in the valve gap, the upper end of valve rod is equipped with the hand wheel, and the lower extreme of valve rod is equipped with the valve clack, the inside of valve rod and valve clack is cavity, the inside of valve rod is equipped with the regulating plate, is equipped with the regulation pole on the regulating plate, and the upper end of adjusting the pole is equipped with the regulating wheel, adjusts the lower extreme intercommunication piston board of pole, it is connected to rotate between regulation pole and the piston board, sliding connection between piston board and the valve rod, the lower extreme of adjusting the pole is equipped with the external screw thread, it passes through threaded connection between external screw thread and the regulating plate to adjust the pole, the lower extreme intercommunication valve clack of valve rod, all be equipped with fine sand in valve rod and the valve clack, the lateral wall of valve clack is equipped with the valve clack hole, the lateral wall of valve clack is equipped with the sealing washer.

Through the technical scheme, because adjust the pole and pass through threaded connection between external screw thread and the regulating plate, rotate the regulation pole, thereby can make and adjust the pole and remove downwards, can drive the piston board through adjusting the pole and remove downwards, can drive the fine sand that has mobility through the piston board and remove, thereby can make the fine sand get into the space between valve clack and the sealing washer through the valve clack hole on the valve clack, utilize the fine sand can be because of receiving the sealing washer jack-up that the extrusion takes place deformation, thereby can guarantee the leakproofness of valve.

The utility model discloses further set up to: the fineness modulus of the fine sand is 1.6, the average grain size of the fine sand is not more than 0.25 mm, and reinforcing ribs are arranged in the side wall of the valve rod at equal angles.

Through the technical scheme, the fine sand with the fineness modulus of 1.6 and the average grain diameter of not more than 0.25 mm is adopted, so that the flowability of the fine sand can be ensured, and the strength of the valve rod can be ensured by arranging the reinforcing ribs in the side wall of the valve rod.

The utility model discloses further set up to: the upper end of the adjusting rod is provided with a sliding block, the sliding block is connected with the valve rod in a sliding mode, the upper end and the lower end of the sealing ring are fixedly connected with the valve clack, and the outer side wall of the piston plate is provided with a leakage-proof ring.

Through above-mentioned technical scheme, can be used for avoiding adjusting the pole through the slider and take place to rock in the valve rod, through the upper end and the lower extreme that make the sealing washer all with the valve clack between fixed connection to can be used for fixing the sealing washer on the valve clack, the middle part of sealing washer is not connected with the valve clack, can make things convenient for fine sand to get into the space between sealing washer and the valve clack, can be used for avoiding fine sand to take place to leak through the leak protection ring.

The utility model has the advantages as follows:

1. the adjusting rod is in threaded connection with the adjusting plate through the external threads, and the adjusting rod is rotated, so that the adjusting rod can move downwards, the piston plate can be driven to move downwards through the adjusting rod, and fine sand with fluidity can be driven to move through the piston plate, so that the fine sand can enter a gap between the valve clack and the sealing ring through a valve clack hole in the valve clack, the sealing ring deformed due to extrusion can be jacked up through the fine sand, and the sealing performance of the valve can be guaranteed;

2. can be used for avoiding adjusting the pole through the slider and take place to rock in the valve rod, all with the valve clack between fixed connection through the upper end and the lower extreme that make the sealing washer to can be used for fixing the sealing washer on the valve clack, the middle part of sealing washer is not connected with the valve clack, can make things convenient for fine sand to get into the space between sealing washer and the valve clack, can be used for avoiding fine sand to take place to leak through the leak protection ring.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the valve stem of the present invention;

FIG. 3 is a schematic view of the valve flap structure of the present invention;

fig. 4 is a partial enlarged view of the position a of the present invention.

In the figure: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a hand wheel; 5. adjusting a rod; 6. an adjustment wheel; 7. an adjusting plate; 8. an external thread; 9. a piston plate; 10. a valve flap; 11. a seal ring; 12. a valve flap aperture; 13. a slide block.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 4, a sealing valve includes a valve body 1 and a valve cover 2, a valve rod 3 is disposed in the valve cover 2, a hand wheel 4 is disposed at an upper end of the valve rod 3, a valve flap 10 is disposed at a lower end of the valve rod 3, the valve rod 3 and the valve flap 10 are both hollow, an adjusting plate 7 is disposed inside the valve rod 3, an adjusting rod 5 is disposed on the adjusting plate 7, an adjusting wheel 6 is disposed at an upper end of the adjusting rod 5, a lower end of the adjusting rod 5 is communicated with a piston plate 9, the adjusting rod 5 is rotatably connected with the piston plate 9, the piston plate 9 and the valve rod 3 are slidably connected, an external thread 8 is disposed at a lower end of the adjusting rod 5, the adjusting rod 5 is in threaded connection with the adjusting plate 7 through the external thread 8, the lower end of the valve rod 3 is communicated with the valve flap 10, a lower end of the valve rod 3 and the valve flap 10 are both provided with fine sand, a flap hole 12 is disposed on an outer side wall of the valve flap 10, a sealing ring 11 is disposed on an outer side wall of the valve flap 10, the adjusting rod 5 is in threaded connection with the external thread 8 and the adjusting rod 7, the adjusting rod 5, so that the adjusting rod 5 can move downward, and the sealing ring can be squeezed into a gap between the valve flap 12, and the valve can be squeezed by the sealing ring, and the valve.

As shown in fig. 2, the fineness modulus of the fine sand is 1.6, the average particle size of the fine sand is not greater than 0.25 mm, the fine sand having the fineness modulus of 1.6 and the average particle size of not greater than 0.25 mm is used to ensure the flowability of the fine sand, reinforcing ribs are arranged in the side wall of the valve rod 3 at equal angles, and the reinforcing ribs are arranged in the side wall of the valve rod 3 to ensure the strength of the valve rod 3.

As shown in fig. 2, the upper end of the adjusting rod 5 is provided with a sliding block 13, the sliding block 13 is connected with the valve rod 3 in a sliding manner, the sliding block 13 can be used for preventing the adjusting rod 5 from shaking in the valve rod 3, the upper end and the lower end of the sealing ring 11 are fixedly connected with the valve clack 10, so that the sealing ring 11 can be fixed on the valve clack 10, the middle part of the sealing ring 11 is not connected with the valve clack 10, fine sand can conveniently enter a gap between the sealing ring 11 and the valve clack 10, the outer side wall of the piston plate 9 is provided with a leakage-proof ring, and the leakage of the fine sand can be avoided by the leakage-proof ring.

The utility model discloses when using, can drive valve rod 3 through hand wheel 4 and remove, can drive valve clack 10 through valve rod 3 and open and shut, can control valve's circulation through opening and shutting of valve clack 10, because the extrusion is received for a long time to the sealing washer 11 of valve clack 10 lateral wall, deformation takes place very easily for sealing washer 11, thereby can lead to the leakproofness variation of valve, because adjust pole 5 through threaded connection between external screw thread 8 and the regulating plate 7, rotate and adjust pole 5, thereby can make and adjust pole 5 and move downwards, can drive piston plate 9 through adjusting pole 5 and move downwards, can drive the fine sand that has fluidity through piston plate 9 and remove, thereby can make the fine sand get into the space between valve clack 10 and the sealing washer 11 through valve clack hole 12 on the valve clack 10, utilize the fine sand can be with because of receiving the extrusion and take place the sealing washer 11 jack-up of deformation, thereby can guarantee the leakproofness of valve, through adopting the fineness modulus to be 1.6, average particle diameter is not more than 0.25 mm's fine sand, thereby can be used for guaranteeing the mobility of fine sand, can be used for guaranteeing the valve clack through setting up the intensity that the strengthening rib can come to come into between the valve clack 3 and the middle part of valve clack and the sealing washer 11 with the sealing washer 10 with the lower extreme and be connected between the sealing washer 10, thereby make things convenient for the sealing washer 10, thereby 10.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. A sealing valve comprises a valve body (1) and a valve cover (2), wherein a valve rod (3) is arranged in the valve cover (2), a hand wheel (4) is arranged at the upper end of the valve rod (3), and a valve clack (10) is arranged at the lower end of the valve rod (3); valve rod (3) and the inside of valve clack (10) are cavity, the inside of valve rod (3) is equipped with regulating plate (7), is equipped with on regulating plate (7) and adjusts pole (5), and the upper end of adjusting pole (5) is equipped with regulating wheel (6), adjusts the lower extreme intercommunication piston board (9) of pole (5), it is connected to rotate between pole (5) and piston board (9), sliding connection between piston board (9) and valve rod (3), the lower extreme of adjusting pole (5) is equipped with external screw thread (8), adjust pole (5) through threaded connection between external screw thread (8) and regulating plate (7), the lower extreme intercommunication valve clack (10) of valve rod (3), all be equipped with fine sand in valve rod (3) and valve clack (10), the lateral wall of valve clack (10) is equipped with valve clack hole (12), the lateral wall of valve clack (10) is equipped with sealing washer (11).

2. A sealing valve as claimed in claim 1, wherein: the fineness modulus of the fine sand is 1.6, and the average grain diameter of the fine sand is not more than 0.25 mm.

3. A sealing valve as claimed in claim 1, wherein: and reinforcing ribs are arranged in the side wall of the valve rod (3) at equal angles.

4. A sealing valve as claimed in claim 1, wherein: the upper end of the adjusting rod (5) is provided with a sliding block (13), and the sliding block (13) is connected with the valve rod (3) in a sliding mode.

5. A sealing valve as claimed in claim 1, wherein: the upper end and the lower end of the sealing ring (11) are fixedly connected with the valve clack (10).

6. A sealing valve as claimed in claim 1, wherein: the outer side wall of the piston plate (9) is provided with a leakage-proof ring.