CN212429812U

CN212429812U - Bidirectional sealing ball valve

Info

Publication number: CN212429812U
Application number: CN202020527207.5U
Authority: CN
Inventors: 巴玉泉; 闫永翰; 艾德权
Original assignee: Tianjin Valve Expo Machinery Co ltd
Current assignee: Tianjin Valve Expo Machinery Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-01-29
Anticipated expiration: 2030-04-13

Abstract

The utility model relates to the technical field of ball valves, in particular to a two-way sealing ball valve, which comprises a valve body and an inner valve ball, wherein a drainage groove is arranged in the valve body, a mounting groove is arranged in the drainage groove, the inner valve ball is clamped in the mounting groove, the inner valve ball is mounted on the inner wall of the mounting groove through a first rotating shaft, the top of the inner valve ball is welded with a valve rod, the top of the valve body is welded with a valve neck, a through groove is arranged in the valve neck, the valve rod is mounted in the through groove through a second rotating shaft, a placing cavity is arranged in the inner valve ball, a current limiting block is clamped in the placing cavity, the top of the valve body is welded with a control nut through a fixed rod, the control nut is arranged at the top of the valve neck, the top of the current limiting block is welded with a driven rod, clamping grooves are arranged in the inner valve ball and the valve rod, the sealing device has the characteristics of good sealing effect and long service life.

Description

Bidirectional sealing ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a two-way seal ball valve.

Background

The ball valve is one kind of valve, and the ball opening and closing part is driven by the valve rod and rotates around the axis of the ball valve. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on a pipeline, and can close any channel to connect the other two channels. This kind of valve generally should horizontal installation in the pipeline, can play the two-way seal effect after connecting, in order to strengthen the sealed effect of ball valve, the utility model discloses a utility model patent that publication number is CN209743644U discloses a two-way seal ball valve, the fine setting closing plate has been increased in the inside of inner valve ball, thereby can play the fine setting and increase the effect of sealed effect, but the fine setting closing plate thickness is thinner, consequently and there is the gap easily between the inner wall of inner valve ball, thereby can lead to the leakproofness must not guarantee, and also lost sealed effect after the wearing and tearing appear, so need a two-way seal ball valve to help to solve above-mentioned problem now.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way seal ball valve to solve the relatively poor problem of leakproofness that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two-way sealing ball valve, includes valve body and interior valve ball, be provided with water drainage tank in the valve body, be provided with the mounting groove in the water drainage tank, interior valve ball card is established in the mounting groove, interior valve ball passes through axis of rotation one and installs on the inner wall of mounting groove, interior valve ball top welding has the valve rod, valve body top welding has the valve neck, be provided with logical groove in the valve neck, the valve rod passes through axis of rotation two and installs logical inslot, it places the chamber to be provided with in the interior valve ball, it is equipped with the restriction piece to place the intracavity card, the valve body top has control nut through the dead lever welding, control nut sets up the valve neck top.

As a further aspect of the present invention: the top of the flow limiting block is welded with a driven rod, the inner valve ball and the valve rod are internally provided with clamping grooves, and the driven rod is clamped in the clamping grooves.

As a further aspect of the present invention: the length of the driven rod is greater than that of the valve neck, an external thread is arranged on the driven rod, and the driven rod is meshed with the control nut through the external thread.

As a further aspect of the present invention: the flow limiting block is characterized in that placing grooves are formed in two sides of the flow limiting block, and pressure sheets are welded on the inner walls of the placing grooves through springs.

As a further aspect of the present invention: the pressure sheet is adhered with a rubber layer.

As a further aspect of the present invention: a circulation groove is arranged in the inner valve ball and communicated with the placing cavity.

As a further aspect of the present invention: the welding of valve rod top has the hand wheel, the welding of hand wheel bottom has sign piece one, the welding of valve neck one side has sign piece two.

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

the utility model discloses when using, the circulation groove in the interior valve ball does not coincide with water drainage tank, therefore interior valve ball can prevent the rivers and flow to the stopper card is established and is put the inslot at the card, even consequently the condition of leaking appears in the interior valve ball, water also can not circulate in getting into and placing the intracavity, sealed effect can be guaranteed to dual water proof, rotates the hand wheel during use and can open the circulation groove simultaneously and place the chamber, consequently it is very convenient to use, and the sealed effectual of stopper, long service life.

Drawings

Fig. 1 is a cross-sectional view of the structure of the present invention.

Fig. 2 is a cross-sectional view (when closed) of the inner valve ball of the structure of the present invention.

Fig. 3 is a cross-sectional view (when open) of the inner valve ball of the structure of the present invention.

Fig. 4 is a sectional view of the current-limiting block of the present invention.

In the figure: 1-valve body, 2-inner valve ball, 3-drainage groove, 4-rotating shaft I, 5-valve rod, 6-valve neck, 7-rotating shaft II, 8-placing cavity, 9-flow limiting block, 10-fixing rod, 11-control nut, 12-driven rod, 13-clamping groove, 14-external thread, 15-placing groove, 16-spring, 17-pressure sheet, 18-rubber layer, 19-circulation groove, 20-hand wheel, 21-marking block I and 22-marking block II.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, a bidirectional sealing ball valve comprises a valve body 1 and an inner valve ball 2, a water drainage groove 3 is arranged in the valve body 1, a mounting groove is arranged in the water drainage groove 3, the inner valve ball 2 is clamped in the mounting groove, the inner valve ball 2 is mounted on the inner wall of the mounting groove through a first rotating shaft 4, a valve rod 5 is welded at the top of the inner valve ball 2, a valve neck 6 is welded at the top of the valve body 1, a through groove is arranged in the valve neck 6, the valve rod 5 is mounted in the through groove through a second rotating shaft 7, a placing cavity 8 is arranged in the inner valve ball 2, a flow limiting block 9 is clamped in the placing cavity 8, a control nut 11 is welded at the top of the valve body 1 through a fixing rod 10, the control nut 11 is arranged at the top of the valve neck 6, a driven rod 12 is welded at the top of the flow limiting block 9, clamping grooves 13 are arranged in the inner valve ball, the driven rod 12 is provided with an external thread 14, the driven rod 12 is meshed with the control nut 11 through the external thread 14, the inner valve ball 2 is internally provided with a circulation groove 19, the circulation groove 19 is communicated with the placing cavity 8, the top of the valve rod 5 is welded with a hand wheel 20, the bottom of the hand wheel 20 is welded with a first identification block 21, one side of the valve neck 6 is welded with a second identification block 22, when the valve body 1 is used, in a closed state, the first identification block 21 corresponds to the second identification block 22, the circulation groove 19 in the inner valve ball 2 is not overlapped with the drainage groove 3, so the inner valve ball 2 can prevent water from flowing, when the valve body 1 is circulated, the valve rod 5 and the inner valve ball 2 are rotated through the hand wheel 20, when the angle between the first identification block 21 and the second identification block 22 is about 90 degrees, at the moment, the circulation groove 19 is communicated with the drainage groove 3, and simultaneously, in the rotation process of the inner valve ball 2, the flow limiting block 9 and the driven rod 12 are, and the control screw is fixed, so that the driven rod 12 can pull the flow limiting block 9 to move upwards during the rotation process, the flow limiting block 9 does not continuously and completely block the circulating groove 19 after moving upwards, and water can continuously flow and discharge after entering the circulating groove 19.

As shown in fig. 2 and 4, the two sides of the current limiting block 9 are provided with the placing grooves 15, the inner wall of the placing groove 15 is welded with the pressure plate 17 through the spring 16, the rubber layer 18 is adhered on the pressure plate 17, the spring 16 provides an outward thrust for the pressure plate 17, so that the sealing effect of the current limiting block 9 can be enhanced, and even if the outer side of the rubber layer 18 is worn, the spring 16 can also push out the rubber layer 18 in time, so that the service life can be prolonged.

The utility model discloses a theory of operation is: when the utility model is used, under the closed state, the first identification block 21 corresponds to the second identification block 22, the circulation groove 19 in the inner valve ball 2 is not overlapped with the drainage groove 3, therefore, the inner valve ball 2 can prevent water from flowing, and the limiting block is clamped in the clamping groove 13 as shown in figure 2, therefore, even if the inner valve ball 2 has water leakage, water can not flow when entering the placing cavity 8, when the valve body 1 flows, the valve rod 5 and the inner valve ball 2 are rotated by the hand wheel 20, when the angle between the first identification block 21 and the second identification block 22 is about 90 degrees, at the moment, the circulation groove 19 is communicated with the drainage groove 3, simultaneously, in the rotation process of the inner valve ball 2, the current limiting block 9 and the driven rod 12 are also rotated, because the driven rod 12 is meshed with the control screw rod through the external thread 14, and the control screw rod is fixed, therefore, the driven rod 12 can pull the current limiting block 9 to move upwards, when the flow-limiting block 9 moves upwards, the flow-limiting block does not continuously and completely block the circulation groove 19, so that water can continuously flow and discharge after entering the circulation groove 19;

when the limiting block is placed in the cavity 8, the spring 16 provides an outward thrust for the pressure sheet 17, so that the sealing effect of the limiting block 9 can be enhanced, and even if the outer side of the rubber layer 18 is worn, the spring 16 can also push the rubber layer 18 out in time, and the service life can be prolonged.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A bidirectional sealing ball valve comprises a valve body (1) and an inner ball (2), and is characterized in that, a water drainage groove (3) is arranged in the valve body (1), an installation groove is arranged in the water drainage groove (3), the inner valve ball (2) is clamped in the mounting groove, the inner valve ball (2) is mounted on the inner wall of the mounting groove through a first rotating shaft (4), the top of the inner valve ball (2) is welded with a valve rod (5), the top of the valve body (1) is welded with a valve neck (6), a through groove is arranged in the valve neck (6), the valve rod (5) is arranged in the through groove through a second rotating shaft (7), a placing cavity (8) is arranged in the inner valve ball (2), a flow limiting block (9) is clamped in the placing cavity (8), the top of the valve body (1) is welded with a control nut (11) through a fixing rod (10), and the control nut (11) is arranged at the top of the valve neck (6).

2. A bi-directional sealing ball valve as claimed in claim 1, wherein: the driven rod (12) is welded to the top of the flow limiting block (9), a clamping groove (13) is formed in the inner valve ball (2) and the valve rod (5), and the driven rod (12) is clamped in the clamping groove (13).

3. A bi-directional sealing ball valve as claimed in claim 2, wherein: the length of the driven rod (12) is larger than that of the valve neck (6), an external thread (14) is arranged on the driven rod (12), and the driven rod (12) is meshed with the control nut (11) through the external thread (14).

4. A bi-directional sealing ball valve as claimed in claim 1, wherein: both sides of the flow limiting block (9) are provided with placing grooves (15), and pressure sheets (17) are welded on the inner walls of the placing grooves (15) through springs (16).

5. A bi-directional sealing ball valve as claimed in claim 4, wherein: the pressure sheet (17) is adhered with a rubber layer (18).

6. A bi-directional sealing ball valve as claimed in claim 5, wherein: a circulation groove (19) is arranged in the inner valve ball (2), and the circulation groove (19) is communicated with the placing cavity (8).

7. A bi-directional sealing ball valve as claimed in claim 1, wherein: the welding of valve rod (5) top has hand wheel (20), the welding of hand wheel (20) bottom has sign piece one (21), the welding of valve neck (6) one side has sign piece two (22).