CN221762653U - One-way soft sealing gate valve - Google Patents

Abstract

The utility model provides a one-way soft sealing gate valve, which has a simple design structure, an arc-shaped spring is arranged to relieve the impact force of water flow, a sealing plate and a soft cushion are protected, the sealing plate drives the soft cushion to seal a sealing ring, the one-way soft sealing gate valve comprises a valve ball body, an outlet pipe and an inlet pipe are symmetrically communicated with the outer side of the valve ball body, a valve core is adapted in the valve ball body, a water hole is formed in the valve core, a valve rod is communicated with the top end of the valve core, the valve rod is in rotary sealing connection with the valve ball body, a handle is fixedly arranged at the top of the valve rod, the inner wall of the inlet pipe is provided with the sealing ring, the outer side of the sealing ring is rotationally provided with a one-way sealing mechanism, the outer sides of the outlet pipe and the inlet pipe are respectively provided with external threads, the one-way sealing mechanism comprises a sealing plate, the position of the sealing plate, which is close to the sealing plate to the sealing ring, and the soft cushion is adapted to the sealing ring; the cushion and the sealing ring can be sealed in one way, and the inner wall of the inlet pipe is fixedly provided with a fixed block.

Description

One-way soft sealing gate valve

Technical Field

The utility model relates to the technical field of soft-sealed gate valves, in particular to a one-way soft-sealed gate valve.

Background Art

The unidirectional soft-sealed gate valve is the gate of the opening and closing parts. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface will be welded with metal materials to increase wear resistance. The gate plate has a rigid gate plate and an elastic gate plate. According to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve. The one-way soft-sealed gate plate can only guide flow in one direction.

When the existing one-way soft-sealed gate valve is opened, the gate valve has a large impact force at an instant, and there is no buffer protection structure. The gate valve is easily damaged by long-term use, thereby reducing the service life.

Utility Model Content

In view of the defects existing in the prior art, the technical problem solved by the utility model is that when the existing one-way soft-sealed gate valve is opened, the gate valve has a large impact force at an instant, and there is no buffer protection structure. Long-term use can easily damage the gate valve and reduce its service life. A one-way soft-sealed gate valve is provided.

In order to achieve the above objectives, the utility model provides:

A one-way soft-sealed gate valve comprises a valve ball body, the outer side of the valve ball body is symmetrically connected with an outlet pipe and an inlet pipe, a valve core is adapted inside the valve ball body, a water hole is opened on the valve core, the top end of the valve core is connected with a valve stem, the valve stem and the valve ball body are rotatably sealed, a handle is fixedly provided on the top of the valve stem, a sealing ring is provided on the inner wall of the inlet pipe, a one-way sealing mechanism is rotatably provided on the outer side of the sealing ring, and external threads are provided on the outer sides of the outlet pipe and the inlet pipe.

Preferably, the one-way sealing mechanism comprises a sealing plate, a soft pad is arranged at a position of the sealing plate close to the sealing ring, and the soft pad is adapted to the sealing ring; the soft pad and the sealing ring can perform one-way sealing.

Preferably, a fixed block is fixedly installed on the inner wall of the inlet pipe, a U-shaped block is fixedly installed on the top of the sealing plate, end shafts are fixedly installed on both sides of the fixed block, and the two end shafts are rotatably connected to the inner walls of both sides of the U-shaped block; through the cooperation of the two end shafts and the U-shaped block, it can be ensured that the fixed block drives the sealing plate to flip.

Preferably, a first arc rod is fixedly installed on the outer side of the sealing plate, a second arc rod is fixedly installed on the inner wall of the inlet pipe, an arc groove is provided on the second arc rod, the first arc rod is slidingly connected to the inner wall of the arc groove, and an arc spring is fixedly installed between the first arc rod and the inner wall of the arc groove; the arc spring provides elastic force for the first arc rod, the first arc rod drives the sealing plate to move, and the sealing plate drives the soft pad to seal the sealing ring to achieve one-way sealing.

Preferably, a sealing bearing is provided on the top of the valve ball, and the outer side of the valve stem is fixedly mounted on the inner ring of the sealing bearing.

Compared with the prior art, the advantages of the utility model are:

1. Use the external threads of the outlet pipe and the inlet pipe to install the whole, drive the valve stem to rotate through the handle, the valve stem drives the valve core to rotate, the water hole is connected with the outlet pipe and the inlet pipe, the inlet pipe is filled with water, the water flow impacts the cushion, the cushion leaves the sealing ring, the cushion drives the sealing plate to flip, the sealing plate drives the first arc rod to slide in the arc groove, the first arc rod compresses the arc spring, the water flows into the valve ball, the arc spring can relieve the impact of the water flow and protect the sealing plate and the cushion;

2. The water flow is led out through the outlet pipe. The water flow can flow in one direction. When the water flow does not flow, the arc spring provides elastic force for the first arc rod, the first arc rod drives the sealing plate to move, and the sealing plate drives the soft pad to seal the sealing ring to achieve one-way sealing;

The utility model has a simple structure, and the arranged arc spring can alleviate the impact force of water flow and protect the sealing plate and the soft pad. The sealing plate drives the soft pad to seal the sealing ring to realize one-way sealing.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the main structure of this design;

FIG2 is a schematic cross-sectional view of the structure of FIG1 of the present design;

FIG3 is a schematic diagram of the three-dimensional structure of the valve core, valve stem and handle in this design;

FIG4 is a schematic diagram of the three-dimensional structure of the cushion, sealing plate and U-shaped block in this design;

FIG5 is a schematic diagram of the structure of part A in FIG2 of this design.

In the figure: 1. valve ball; 2. outlet pipe; 3. inlet pipe; 4. external thread; 5. valve core; 6. water hole; 7. valve stem; 8. handle; 9. sealing bearing; 10. sealing ring; 11. cushion; 12. sealing plate; 13. fixing block; 14. U-shaped block; 15. end shaft; 16. first arc rod; 17. second arc rod; 18. arc groove; 19. arc spring.

DETAILED DESCRIPTION

The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

Referring to Figures 1-5, a one-way soft-sealed gate valve includes a valve ball 1, the outer side of the valve ball 1 is symmetrically connected with an outlet pipe 2 and an inlet pipe 3, a valve core 5 is adapted in the valve ball 1, a water hole 6 is opened on the valve core 5, the top of the valve core 5 is connected with a valve stem 7, the valve stem 7 is rotatably sealed with the valve ball 1, a handle 8 is fixedly provided on the top of the valve stem 7, a sealing ring 10 is provided on the inner wall of the inlet pipe 3, a one-way sealing mechanism is rotatably provided on the outer side of the sealing ring 10, and external threads 4 are provided on the outer sides of the outlet pipe 2 and the inlet pipe 3.

In this embodiment, a sealing bearing 9 is provided on the top of the valve ball 1 , and the outer side of the valve stem 7 is fixedly mounted to the inner ring of the sealing bearing 9 .

In this embodiment, the one-way sealing mechanism includes a sealing plate 12 , and a soft pad 11 is provided at a position of the sealing plate 12 close to the sealing ring 10 . The soft pad 11 is adapted to the sealing ring 10 ; the soft pad 11 and the sealing ring 10 can perform one-way sealing.

In this embodiment, a fixing block 13 is fixedly installed on the inner wall of the inlet pipe 3, a U-shaped block 14 is fixedly installed on the top of the sealing plate 12, and end shafts 15 are fixedly installed on both sides of the fixing block 13. The two end shafts 15 are rotatably connected to the inner walls of the two sides of the U-shaped block 14; through the cooperation of the two end shafts 15 and the U-shaped block 14, it can be ensured that the fixing block 13 drives the sealing plate 12 to flip.

In this embodiment, a first arc rod 16 is fixedly installed on the outer side of the sealing plate 12, a second arc rod 17 is fixedly installed on the inner wall of the inlet pipe 3, an arc groove 18 is opened on the second arc rod 17, the first arc rod 16 is slidably connected to the inner wall of the arc groove 18, and an arc spring 19 is fixedly installed between the first arc rod 16 and the inner wall of the arc groove 18; the arc spring 19 provides elastic force for the first arc rod 16, the first arc rod 16 drives the sealing plate 12 to move, and the sealing plate 12 drives the soft pad 11 to seal the sealing ring 10 to achieve one-way sealing.

Working principle: when in use, the whole is installed using the external threads 4 of the outlet pipe 2 and the inlet pipe 3, the valve stem 7 is driven to rotate by the handle 8, the valve stem 7 drives the valve core 5 to rotate, the water hole 6 is connected with the outlet pipe 2 and the inlet pipe 3, the inlet pipe 3 is provided with water, the water flow impacts the cushion 11, the cushion 11 leaves the sealing ring 10, the cushion 11 drives the sealing plate 12 to flip, the sealing plate 12 drives the first arc rod 16 to slide in the arc groove 18, the first arc rod 16 compresses the arc spring 19, the water flows into the inside of the valve ball 1, and then the water flow is discharged through the outlet pipe 2, the water flow can flow in one direction, when the water flow does not flow, the arc spring 19 provides elastic force for the first arc rod 16, the first arc rod 16 drives the sealing plate 12 to move, the sealing plate 12 drives the cushion 11 to seal the sealing ring 10, so as to realize one-way sealing.

The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those with the same or similar technical solutions as the present utility model are within the scope of protection.

Claims (3)

1. The utility model provides a one-way soft sealing gate valve, includes valve spheroid (1), and the outside symmetry of valve spheroid (1) communicates there is outlet pipe (2) and inlet tube (3), its characterized in that: valve core (5) is adapted in valve ball body (1), water hole (6) has been seted up on valve core (5), the top intercommunication of valve core (5) has valve rod (7), valve rod (7) and valve ball body (1) rotate sealing connection, the fixed handle (8) that is provided with in top of valve rod (7), be provided with sealing ring (10) on the inner wall of intake pipe (3), the outside rotation of sealing ring (10) is provided with one-way sealing mechanism, one-way sealing mechanism includes closing plate (12), and the position that closing plate (12) is close to sealing ring (10) is provided with cushion (11), cushion (11) and sealing ring (10) looks adaptation, fixed mounting has fixed block (13) on the inner wall of intake pipe (3), the top fixed mounting of closing plate (12) has U-shaped piece (14), the both sides of fixed block (13) are all fixed mounting have end shaft (15), the both sides of two end shaft (15) are connected with the inner wall rotation of U-shaped piece (14), the outside fixed mounting of closing plate (12) has first arc pole (16), fixed mounting has on the inner wall of intake pipe (3) second arc pole (17) and arc-shaped groove (18) on the arc-shaped groove (18), an arc spring (19) is fixedly arranged between the first arc-shaped rod (16) and the inner wall of the arc-shaped groove (18).

2. A one-way soft seal gate valve as defined in claim 1, wherein: external threads (4) are arranged on the outer sides of the outlet pipe (2) and the inlet pipe (3).

3. A one-way soft seal gate valve as defined in claim 1, wherein: the top of the valve ball body (1) is provided with a sealing bearing (9), and the outer side of the valve rod (7) is fixedly arranged with the inner ring of the sealing bearing (9).