CN212251286U

CN212251286U - Ball valve

Info

Publication number: CN212251286U
Application number: CN202020998658.7U
Authority: CN
Inventors: 吕道福
Original assignee: Yuhuan County Xunfa Forgings Factory
Current assignee: Yuhuan County Xunfa Forgings Factory
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-29
Anticipated expiration: 2030-06-03

Abstract

The utility model provides a ball valve belongs to valve technical field. It is poor that it has solved the sealed effect of current ball valve, causes the problem of case offset easily under the big condition of water impact. This ball valve, which comprises a valve body, the valve body both ends have inlet port and outlet port and corresponding inlet channel and outlet channel respectively, it is provided with the case to lie in between inlet channel and the outlet channel in the valve body, the inside perisporium of the corresponding inlet channel department of valve body is gone up the outside arch and is had the one deck buffering ring, the preceding side that lies in the buffering ring in the valve body has the extension circle to the radial bulge of external diameter, the even spaced a plurality of fluting of having seted up of terminal surface circumference before the extension circle, equal axial outwards extension has the bellying axle in corresponding each fluting on the extension circle, just lie in the bellying off-axial overcoat and be equipped with buffer spring in the fluting, sliding fit has the buffer slide block on the periphery. The utility model has the advantages of good sealing performance, good use effect, long service life and stable valve core position.

Description

Ball valve

Technical Field

The utility model belongs to the technical field of the valve, a ball valve is related to.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The existing ball valve has a simple internal structure, so that the following problems often occur in life: 1. the contact between the sealing ring positioned between the valve body and the valve core is not compact enough, so that the sealing property is poor; 2. when water flows too much, the impact force of the water flowing into the valve core is also very large, and the unstable connection between the sealing ring and the valve core causes the position of the valve core to be easy to deviate, so that the sealing performance of the whole ball valve is greatly reduced, and the use condition is influenced.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a leakproofness good, excellent in use effect, long service life's ball valve.

The purpose of the utility model can be realized by the following technical proposal: a ball valve comprises a valve body, wherein a water inlet port, a water outlet port, a corresponding water inlet flow passage and a corresponding water outlet flow passage are respectively arranged at two ends of the valve body, a valve core is arranged between the water inlet flow passage and the water outlet flow passage in the valve body, a handle for controlling the rotation of the valve core is also arranged on the valve body, and the handle and the valve core are connected through a valve rod. And the front end of the protruding shaft penetrates out of the groove, a buffer spring is sleeved outside the protruding shaft in the groove, the outer peripheral wall of the protruding shaft penetrating out of the groove is provided with a buffer slide block which plays a role of buffering and is propped against one end of the buffer spring in a sliding fit mode, a plurality of grooves are formed in the position, opposite to the valve core, in the valve body, sealing rings which play a role of sealing the outer surface of the valve core are arranged in the grooves, and a fastening mechanism which can enable the sealing rings to be tightly attached to the outer surface of the valve core is arranged at the outer ring of the corresponding sealing ring in the valve body.

In the ball valve, the fastening mechanism is composed of a pressure spring and a pressure plate, a fixing groove for installing the pressure spring and the pressure plate is axially formed in the outer ring of the sealing ring in the valve body, one end of the pressure spring is fixedly connected with the inner end wall of the fixing groove, the other end of the pressure spring is fixedly connected to the rear end part of the pressure plate, and the pressure plate is pressed on the sealing ring through the pressure spring to enable the sealing ring to be attached to the valve core.

In the ball valve, a rubber flitch is further arranged between the pressing plate and the sealing ring, and the rubber flitch is pressed on the sealing ring to enable the sealing ring to be attached to the valve core.

In the ball valve, the front surface of the bottom end of the buffering slide block is provided with an inclined slope surface.

In the above ball valve, one end of the buffer spring is fixedly connected with the inner side of the buffer sliding block, and the other end of the buffer spring is fixedly connected with the inner wall of the slot.

Compared with the prior art, this ball valve makes this ball valve can effectual reduction get into the impact force of rivers by the double buffering part that buffering slider and cushion ring constitute, prevents that the case from receiving powerful impact force and leading to the offset, plays the effect of location to the case to realize better leakproofness, improve the life and the result of use of product.

Drawings

Fig. 1 is a schematic sectional view of the ball valve.

Fig. 2 is an enlarged schematic view of the ball valve at a in fig. 1.

Fig. 3 is an enlarged schematic view of the ball valve at B in fig. 1.

In the figure, 1, a valve body; 2. a water inlet flow channel; 3. a water outlet flow channel; 4. a valve core; 5. a handle; 6. a valve stem; 7. a buffer ring; 8. a buffer surface; 9. an extension ring; 10. grooving; 11. a protruding shaft; 12. a buffer spring; 13. a buffer slide block; 14. a seal ring; 15. a compression spring; 16. a compression plate; 17. fixing grooves; 18. a rubber flitch; 19. a slope surface.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the ball valve comprises a valve body 1, wherein two ends of the valve body 1 are respectively provided with a water inlet port and a water outlet port and a corresponding water inlet flow passage 2 and a corresponding water outlet flow passage 3, a valve core 4 is arranged between the water inlet flow passage 2 and the water outlet flow passage 3 in the valve body 1, a handle 5 for controlling the rotation of the valve core 4 is further arranged on the valve body 1, the handle 5 is connected with the valve core 4 through a valve rod 6, a layer of buffer ring 7 is outwards protruded on the inner peripheral wall of the valve body 1 corresponding to the water inlet flow passage 2, two sides of the buffer ring 7 are obliquely provided with buffer surfaces 8 for buffering passing water flow, an extension ring 9 is protruded towards the outer diameter direction in the front side of the buffer ring 7 in the valve body 1, the protrusion thickness of the extension ring 9 is smaller than that of the buffer ring 7, the buffer sequence for facilitating water flow impact is provided, a plurality of slots 10 are circumferentially and uniformly spaced, the extension ring 9 is provided with a protruding shaft 11 extending axially and outwardly corresponding to each slot 10, the front end of the protruding shaft 11 penetrates out of the slot 10, a buffer spring 12 is sleeved outside the protruding shaft 11 in the slot 10, the protruding shaft 11 is provided with a buffer slide block 13 playing a role of buffering and abutting against one end of the buffer spring 12 in a sliding fit manner on the outer peripheral wall penetrating out of the slot 10, one end of the buffer spring 12 is directly welded and fixedly connected with the inner side of the buffer slide block 13, the other end of the buffer spring is fixedly connected with the inner wall of the slot 10 in the same welding way, the front surface of the bottom end of the buffer slide block 13 is provided with an inclined slope surface 19, the arrangement of the inclined slope surface 19 has a better buffering role on the impacted water flow, after the water flow enters the water inlet flow channel 2 through the water inlet port, strong impact force is beaten on the buffer slide block 13 to contact with the inclined slope surface 19 arranged on the, a plurality of grooves are formed in the valve body 1 at positions corresponding to the valve core 4, sealing rings 14 for sealing the outer surface of the valve core 4 are arranged in the grooves, and fastening mechanisms capable of enabling the sealing rings 14 to be tightly attached to the outer surface of the valve core 4 are arranged on outer rings of the corresponding sealing rings 14 in the valve body 1.

The double buffering part composed of the buffering slide block 13 and the buffering ring 7 enables the ball valve to effectively reduce the impact force of entering water flow, and prevents the valve core 4 from position deviation caused by strong impact force, the optimal buffering effect is achieved when the four buffering slide blocks 13 are arranged, when water flow enters the water inlet flow channel 2, the water flow impacts the buffering slide block 13, the buffering slide block 13 moves back and forth along the protruding shaft 11 under the action of the buffering spring 12 to play a buffering effect, then the water flow continues to flow inwards, through the arrangement of the buffering surface 8 in the buffering ring 7, the impacted water flow is further buffered, and then the impacted water flow can smoothly enter the valve core 4, the valve core 4 can not be subjected to too large impact force, and due to the arrangement of the fastening mechanism, the valve core 4 can be stably arranged in the valve body 1 without position deviation, and the sealing ring 14 can not be misplaced, and a better sealing effect is achieved.

In more detail, the fastening mechanism is composed of a pressure spring 15 and a pressure plate 16, a fixing groove 17 for installing the pressure spring 15 and the pressure plate 16 is axially arranged at the outer ring of the sealing ring 14 in the valve body 1, one end of the pressure spring 15 is fixedly connected with the inner end wall of the fixing groove 17 through welding, the other end of the pressure spring is fixedly connected with the rear end part of the pressure plate 16 through welding, the pressure plate 16 is pressed on the sealing ring 14 through the pressure spring 15 to enable the sealing ring 14 to be attached to the valve core 4, the pressure plate 16 presses the sealing ring 14 through the support of the pressure spring 15 to the pressure plate 16, the sealing ring 14 is attached to the outer surface of the valve core 4 to achieve a fixing effect, a rubber attachment plate 18 is further arranged between the pressure plate 16 and the sealing ring 14, the rubber attachment plate 18 is pressed on the sealing ring 14 to enable the sealing ring 14 to be attached to the valve core 4, and the contact, the fixing effect is better.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A ball valve comprises a valve body (1), wherein a water inlet port, a water outlet port, a corresponding water inlet flow passage (2) and a corresponding water outlet flow passage (3) are respectively arranged at two ends of the valve body (1), a valve core (4) is arranged between the water inlet flow passage (2) and the water outlet flow passage (3) in the valve body (1), a handle (5) used for controlling the rotation of the valve core (4) is further arranged on the valve body (1), the handle (5) and the valve core (4) are connected through a valve rod (6), the ball valve is characterized in that a layer of buffer ring (7) protrudes outwards on the inner peripheral wall of the valve body (1) corresponding to the water inlet flow passage (2), buffer surfaces (8) used for buffering passing water flow are obliquely arranged at two sides of the buffer ring (7), and an extension ring (9) protrudes outwards from the front side of the buffer ring (7) in the valve body (1), the protruding thickness of the extending ring (9) is smaller than that of the buffer ring (7), a plurality of slots (10) are uniformly arranged on the front end face of the extending ring (9) in the circumferential direction at intervals, protruding shafts (11) axially and outwards extend from the corresponding slots (10) on the extending ring (9), the front end parts of the protruding shafts (11) penetrate out of the slots (10), buffer springs (12) are sleeved outside the protruding shafts (11) in the slots (10), buffer sliders (13) which play a role in buffering and abut against one ends of the buffer springs (12) are arranged on the peripheral walls of the protruding shafts (11) penetrating out of the slots (10) in a sliding fit mode, a plurality of grooves are formed in positions of the valve body (1) corresponding to the valve core (4), and sealing rings (14) which play a role in sealing the outer surface of the valve core (4) are arranged in the grooves, and a fastening mechanism which can tightly attach the sealing ring (14) to the outer surface of the valve core (4) is arranged at the outer ring of the corresponding sealing ring (14) in the valve body (1).

2. The ball valve according to claim 1, wherein the fastening mechanism comprises a pressing spring (15) and a pressing plate (16), a fixing groove (17) for mounting the pressing spring (15) and the pressing plate (16) is axially formed in the valve body (1) at the outer ring of the sealing ring (14), one end of the pressing spring (15) is fixedly connected with the inner end wall of the fixing groove (17), the other end of the pressing spring is fixedly connected to the rear end of the pressing plate (16), and the pressing plate (16) is pressed on the sealing ring (14) through the pressing spring (15) so that the sealing ring (14) is tightly attached to the valve core (4).

3. A ball valve according to claim 2, wherein a rubber patch (18) is further disposed between the pressing plate (16) and the sealing ring (14), and the rubber patch (18) is pressed against the sealing ring (14) to make the sealing ring (14) closely contact with the valve core (4).

4. A ball valve according to claim 1, characterized in that the front surface of the bottom end of the buffer slide block (13) is provided with an inclined ramp (19).

5. A ball valve according to claim 1, characterized in that said damping spring (12) is secured at one end to the inside of the damping slider (13) and at the other end to the inner wall of the slot (10).