CN210372108U

CN210372108U - Ball valve with good sealing performance

Info

Publication number: CN210372108U
Application number: CN201921166494.5U
Authority: CN
Inventors: 袁超; 宋永启; 钟承卫
Original assignee: Tongling Tianhai Flow Control Co ltd
Current assignee: Tongling Tianhai Flow Control Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-21
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a ball valve with good sealing performance, which comprises a valve rod, a flange, a ball valve outer shell and a ball body, wherein the ball body is rotatably arranged inside the ball valve outer shell, the flange is fixedly arranged at one end of the ball valve outer shell, the upper end of the ball valve outer shell is fixedly provided with a sliding barrel, the upper end of the sliding barrel is fixedly provided with an auxiliary sealing mechanism, the upper end of the auxiliary sealing mechanism is provided with a fixed plate, the middle part of the fixed plate is provided with a shaft hole, the upper end of the valve rod extends out of the shaft hole, the end part of the extending end is provided with a rotating piece, and the rotating piece comprises an arc; rotate piece and spout through the design, utilize the contact of second sealing washer and extrude supplementary sealing mechanism and realize waterproof sealing, traditional sealing washer compares, and this structure makes the waterproof nature of sealing washer not receive the influence of sealed pad edge wearing and tearing, need not often to change the sealing washer, has saved manpower and materials, provides effective guarantee for the life of producing.

Description

Ball valve with good sealing performance

Technical Field

The utility model belongs to the technical field of the ball valve, the ball valve that concretely relates to leakproofness is good.

Background

Ball valve, spheroid are driven by the valve rod, and the valve of rotary motion is made to the duplex winding ball valve axis, also can be used to fluidic regulation and control, and the switching of confluence, reposition of redundant personnel and the flow direction that not only can nimble control medium of many-way ball valve on the pipeline also can be closed arbitrary passageway simultaneously and make two other passageways link to each other, and the ball valve divide into according to the drive mode: pneumatic ball valves, electric ball valves, manual ball valves.

The existing manual ball valve has the problem that in order to prevent the water leakage of the valve rod, a sealing ring is arranged at the joint of the valve rod and the ball valve outer shell, the valve which is frequently opened and closed is easily abraded, the valve rod is prone to water leakage, the valve body needs to be disassembled and the sealing ring needs to be replaced, manpower and material resources are consumed, the production and life are affected, and therefore the ball valve with good sealing performance is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball valve that leakproofness is good to solve the current manual ball valve that proposes among the above-mentioned background art, exist and leak in order to prevent valve rod department, the junction of valve rod and ball valve shell body is provided with the sealing washer, and to the valve that often opens and close, this sealing washer is easily worn and torn, leads to valve rod department to leak, needs dismantle the valve body and change the sealing washer, consumes manpower and materials, influences the problem of production life.

In order to achieve the above object, the utility model provides a following technical scheme: the ball valve with good sealing performance comprises a valve rod, a flange, a ball valve outer shell and a ball body, wherein the ball body is rotatably arranged inside the ball valve outer shell, the flange is fixedly arranged at one end of the ball valve outer shell, a sliding barrel is fixedly arranged at the upper end of the ball valve outer shell, an auxiliary sealing mechanism is fixedly arranged at the upper end of the sliding barrel, a fixed plate is arranged at the upper end of the auxiliary sealing mechanism, a shaft hole is formed in the middle of the fixed plate, the upper end of the valve rod extends out of the shaft hole, a rotating piece is arranged at the end part of the extending end of the valve rod and comprises an arc surface fixed block, an iron plate and a first handle, the iron plate is symmetrically distributed on the outer surface of the valve rod and is rotatably connected through a rotating shaft, one end of the iron plate is fixedly connected with, the arc surface fixed block with the spout butt, the lower extreme of valve rod is fixed and is provided with the connecting piece, the connecting piece with the spheroid is connected, just it has the second sealing washer to slide the embedding in the slide cartridge, the fixed cover of second sealing washer is established the surface of valve rod.

Preferably, supplementary sealing mechanism includes an internal thread section of thick bamboo, an external screw thread section of thick bamboo and first sealing washer, an external screw thread section of thick bamboo is fixed to be set up the upper end of smooth section of thick bamboo, an internal thread section of thick bamboo closes soon to be set up the upper end of an external screw thread section of thick bamboo, just an internal thread section of thick bamboo with fixed plate fixed connection, first sealing washer slides the embedding the inside of an external screw thread section of thick bamboo, just the lower extreme of an external screw thread section of thick bamboo is provided with the.

Preferably, the connecting piece is a hexagonal prism, a blind hole is formed in the upper end of the sphere, and the blind hole is clamped with the hexagonal prism.

Preferably, a concave cavity is formed in one end of the first handle, and a second handle is embedded into the concave cavity.

Preferably, a return spring is fixedly arranged between the embedded end of the second handle and the inner bottom wall of the cavity.

Preferably, the open end of the cavity is provided with a limiting block.

Preferably, one end of the sliding groove is fixedly provided with a magnet, and the magnet is adsorbed with the iron plate.

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

(1) rotate piece and spout through the design, utilize the contact of second sealing washer and extrude supplementary sealing mechanism and realize waterproof sealing, traditional sealing washer compares, and this structure makes the waterproof nature of sealing washer not receive the influence of sealed pad edge wearing and tearing, need not often to change the sealing washer, has saved manpower and materials, provides effective guarantee for the life of producing.

(2) Through the supplementary sealing mechanism of design, the leakproofness of reinforcing ball valve sets up the second handle for the rotation of handle is more laborsaving, and does not occupy extra space, through setting up magnet, is convenient for adsorb fixedly to rotating the piece, prevents its unexpected rotation.

Drawings

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

FIG. 2 is a schematic structural view of a sectional view of the outer casing of the ball valve according to the present invention;

fig. 3 is a schematic structural diagram of a top view of the fixing plate of the present invention;

fig. 4 is a schematic top view of the rotating member of the present invention;

in the figure: 1. a rotating member; 2. a valve stem; 3. a fixing plate; 4. an internal threaded barrel; 5. an externally threaded barrel; 6. a slide cylinder; 7. a flange; 8. a ball valve outer housing; 9. a first seal ring; 10. a sphere; 11. a connecting member; 12. a circular arc surface fixing block; 13. an iron plate; 14. a first handle; 15. a magnet; 16. a chute; 17. a second handle; 18. a second seal ring; 19. and (4) an auxiliary sealing mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a ball valve with good sealing performance comprises a valve rod 2, a flange 7, a ball valve outer shell 8 and a ball body 10, wherein the ball body 10 is rotatably arranged inside the ball valve outer shell 8, the flange 7 is fixedly arranged at one end of the ball valve outer shell 8, a sliding barrel 6 is fixedly arranged at the upper end of the ball valve outer shell 8, an auxiliary sealing mechanism 19 is fixedly arranged at the upper end of the sliding barrel 6, a fixed plate 3 is arranged at the upper end of the auxiliary sealing mechanism 19, a shaft hole is formed in the middle of the fixed plate 3, a shaft hole extends out of the upper end of the valve rod 2, a rotating part 1 is arranged at the end part of the extending end of the shaft, the rotating part 1 comprises an arc surface fixed block 12, an iron plate 13 and a first handle 14, the iron plate 13 is symmetrically distributed on the outer surface of the valve rod 2 and is rotatably connected through a rotating shaft, one end, two groups of inner sliding grooves are arranged in parallel, the two groups of inner sliding grooves are vertically distributed, the arc surface fixing block 12 is abutted with the sliding grooves 16 and is not contacted with the sliding grooves 16 in a normal state, the arc surface fixing block can be abutted with one group of sliding grooves 16 by upwards rotating ninety degrees and then reset and horizontally rotate ninety degrees and can be abutted with the other group of sliding grooves 16, the lower end of the valve rod 2 is fixedly provided with a connecting piece 11, the connecting piece 11 is connected with a ball 10, a second sealing ring 18 is embedded in the sliding cylinder 6 in a sliding manner, the second sealing ring 18 is fixedly sleeved on the outer surface of the valve rod 2, the iron plate 13 is in a horizontal position by arranging a rotating piece 1 and the second sealing ring 18, then a first handle 14 is rotated to drive the ball 10 to rotate, the valve is opened or closed, after the valve is completely opened or closed, the first handle 14 is upwards rotated to enable, and drives the second sealing ring 18 to contact and extrude with the auxiliary sealing mechanism 19, so as to realize sealing of the valve rod 2.

In this embodiment, preferably, the auxiliary sealing mechanism 19 includes an internal thread cylinder 4, an external thread cylinder 5 and a first sealing ring 9, the external thread cylinder 5 is fixedly arranged at the upper end of the sliding cylinder 6, the internal thread cylinder 4 is screwed to the upper end of the external thread cylinder 5, and the internal thread cylinder 4 is fixedly connected with the fixing plate 3, the first sealing ring 9 is slidably embedded into the internal part of the external thread cylinder 5, and the lower end of the external thread cylinder 5 is provided with a limiting ring, through setting the auxiliary sealing mechanism 19, the internal thread cylinder 4 is screwed to the external thread cylinder 5 to be connected, so that the fixing plate 3 moves downwards and extrudes the first sealing ring 9, and sealing of the valve rod 2 is realized.

In this embodiment, preferably, the connecting piece 11 is a hexagonal prism, and the blind hole has been seted up to the upper end of spheroid 10, and blind hole and hexagonal prism looks block are through setting up blind hole and hexagonal prism for when valve rod 2 reciprocated, do not influence the rotation that valve rod 2 drove spheroid 10.

In this embodiment, preferably, a concave cavity is formed in one end of the first handle 14, the second handle 17 is embedded in the concave cavity, and the second handle 17 is pulled out of the concave cavity by arranging the second handle 17, so that the force arm of the rotating member 1 is increased, and the rotation is more labor-saving.

In this embodiment, it is preferable that a return spring is fixedly disposed between the embedded end of the second handle 17 and the inner bottom wall of the cavity, and the return spring facilitates the second handle 17 to automatically retract into the cavity.

In this embodiment, preferably, the opening end of the cavity is provided with a limiting block, and the second handle 17 is prevented from sliding down from the cavity by the limiting block.

In this embodiment, preferably, the magnet 15 is fixedly provided at one end of the chute 16, the magnet 15 is attracted to the iron plate 13, and the magnet 15 is provided to attract and fix the iron plate 13, thereby preventing the rotating member 1 from accidentally rotating and falling.

The utility model discloses a theory of operation and use flow: the iron plate 13 is in a horizontal position by arranging the rotating piece 1 and the second sealing ring 18, then the first handle 14 is rotated to drive the ball 10 to rotate, so as to realize the opening or closing of the valve, after the valve is completely opened or closed, the first handle 14 is rotated upwards to enable the arc surface fixing block 12 to be embedded into the sliding groove 16 in a sliding way, two groups of sliding grooves 16 are arranged in one group, the sliding grooves in the group are mutually parallel, the two groups are vertically distributed, the arc surface fixing block 12 is abutted against the sliding groove 16 and is not contacted with the sliding groove 16 in a normal state, the arc surface fixing block 12 can be abutted against one group of sliding grooves 16 by rotating ninety degrees upwards, then the sliding groove 16 is reset and horizontally rotated ninety degrees, and can be abutted against the other group of sliding grooves 16, the valve rod 2 is driven to move upwards by the abutment of the arc surface fixing block 12 and the sliding groove 16, at the moment, the lower end of the connecting piece 11 is still positioned in the blind hole, so that the valve rod 2 is not influenced to drive the ball body 10 to rotate;

through setting up supplementary sealing mechanism 19, close with the soon of an external screw thread section of thick bamboo 5 through an internal thread section of thick bamboo 4 and be connected, make fixed plate 3 downstream and extrude first sealing washer 9, realize the sealing to valve rod 2 department, through setting up blind hole and hexagonal prism, when making valve rod 2 reciprocate, do not influence the rotation that valve rod 2 drove spheroid 10, through setting up second handle 17, pull out second handle 17 from the cavity, make the arm of force of rotating piece 1 increase, it is more laborsaving to rotate, through setting up reset spring, be convenient for second handle 17 automatic contraction to the cavity in, through setting up the stopper, prevent that second handle 17 from the cavity internal slipping, through setting up magnet 15, adsorb fixedly to iron plate 13, prevent to rotate 1 unexpected rotation and drop.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Ball valve that leakproofness is good, including valve rod (2), flange (7), ball valve shell body (8) and spheroid (10), spheroid (10) are rotated and are set up the inside of ball valve shell body (8), flange (7) are fixed to be set up the one end of ball valve shell body (8), the fixed slide cartridge (6) that is provided with in upper end of ball valve shell body (8), the fixed supplementary sealing mechanism (19) that is provided with in upper end of slide cartridge (6), the upper end of supplementary sealing mechanism (19) is provided with fixed plate (3), the shaft hole has been seted up at the middle part of fixed plate (3), its characterized in that: the upper end of the valve rod (2) extends out of the shaft hole, the end part of the extending end is provided with a rotating piece (1), the rotating piece (1) comprises an arc surface fixing block (12), an iron plate (13) and a first handle (14), the iron plates (13) are symmetrically distributed on the outer surface of the valve rod (2) and are rotationally connected through a rotating shaft, one end of the iron plate (13) is fixedly connected with the first handle (14), the other end is fixedly connected with the arc surface fixing block (12), the upper surface of the fixed plate (3) is provided with a sliding chute (16), the arc surface fixed block (12) is abutted against the sliding chute (16), the lower end of the valve rod (2) is fixedly provided with a connecting piece (11), the connecting piece (11) is connected with the ball body (10), and a second sealing ring (18) is embedded in the sliding barrel (6) in a sliding mode, and the second sealing ring (18) is fixedly sleeved on the outer surface of the valve rod (2).

2. The ball valve of claim 1, wherein: supplementary sealing mechanism (19) include an internal thread section of thick bamboo (4), an external screw thread section of thick bamboo (5) and first sealing washer (9), an external screw thread section of thick bamboo (5) is fixed to be set up the upper end of smooth section of thick bamboo (6), an internal thread section of thick bamboo (4) close the setting soon and are in the upper end of an external screw thread section of thick bamboo (5), just an internal thread section of thick bamboo (4) with fixed plate (3) fixed connection, first sealing washer (9) slip embedding the inside of an external screw thread section of thick bamboo (5), just the lower extreme of an external screw thread section of thick bamboo (5) is provided with the spacing ring.

3. The ball valve of claim 1, wherein: the connecting piece (11) is a hexagonal prism, a blind hole is formed in the upper end of the ball body (10), and the blind hole is clamped with the hexagonal prism.

4. The ball valve of claim 1, wherein: a concave cavity is formed in one end of the first handle (14), and a second handle (17) is embedded into the concave cavity.

5. The ball valve with good sealing performance as claimed in claim 4, wherein: and a return spring is fixedly arranged between the embedded end of the second handle (17) and the inner bottom wall of the concave cavity.

6. The ball valve with good sealing performance as claimed in claim 4, wherein: and a limiting block is arranged at the opening end of the concave cavity.

7. The ball valve of claim 1, wherein: and a magnet (15) is fixedly arranged at one end of the sliding groove (16), and the magnet (15) is adsorbed with the iron plate (13).