CN217927245U - Bidirectional sealing type ball valve device - Google Patents

Abstract

The utility model discloses a two-way sealed ball valve device, which comprises a connecting port and a connecting pipeline. A fixing box is installed outside the connecting pipeline, an adjusting device is installed outside the fixing box, and a plurality of square grooves are arranged inside the adjusting device. The inside of the square groove is equipped with buckles, the external movement of the adjustment device is provided with a first connecting rod, the external movement of the first connecting rod is provided with a movable rod, and the end of the movable rod far away from the first connecting rod is equipped with a circular plate, which is movable A valve rod is installed on the outside of the rod, a connecting block is installed on the outside of the valve rod, and a bump is installed on the outside of the connected block. A second sphere is installed on the end of the first connecting rod far away from the movable rod. Drive the second sphere to rotate, and at the same time drive the first sphere to rotate through the gear structure. The second sphere and the first sphere are equipped with sealing strips. The first sphere and the second sphere are double-sealed. The same valve stem is adjusted, which is easy to use and makes the ball valve The sealing effect of the device is better.

Description

A two-way sealed ball valve device

technical field

The utility model relates to the technical field of ball valve devices, in particular to a bidirectional sealing ball valve device.

Background technique

The ball of the ball valve is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The ball valve is mainly used for cutting, distributing and changing the flow direction of the medium in the pipeline. It only needs to use The operation of rotating 90 degrees and a small rotating torque can close tightly. Ball valves are most suitable for on-off and cut-off valves. V-type ball valves are widely used in petroleum refining, long-distance pipelines, chemical, paper, pharmaceutical, water conservancy, electric power, municipal, steel and other industries, and play a decisive role in the national economy. status.

During the working process of the traditional ball valve, due to the long-term use of the valve stem, the valve stem will be loose and difficult to fix, which will affect the use of the ball valve, and when the ball rotates in the cavity of the ball valve, friction will occur. During the friction process Loss will occur, and after working for a long time, the ball will also leak water when it is closed, and the sealing effect is not good, so a two-way sealing ball valve device is needed.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art that the valve stem is easy to loosen and the internal sealing effect is not good, and proposes a two-way sealing ball valve device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A two-way sealed ball valve device, including a connecting port and a connecting pipe, a fixed box is installed on the outside of the connecting pipe, an adjusting device is installed on the outside of the fixing box, and a plurality of square grooves are opened inside the adjusting device , the inside of the square groove is equipped with buckles, the outside of the adjustment device is provided with a first connecting rod, the outside of the first connecting rod is provided with a movable rod, and the movable rod is far away from the first A round plate is installed on one end of the connecting rod, a valve rod is installed on the outside of the movable rod, a connecting block is installed on the outside of the valve rod, a bump is installed on the outside of the connecting block, and the first connecting rod A second sphere is installed away from the end of the movable rod, a second connecting rod is installed on the end of the second sphere away from the first connecting rod, and a second connecting rod is installed on the end of the second connecting rod away from the second sphere. The first bevel gear drives the second sphere to rotate by rotating the valve stem, and at the same time drives the first sphere to rotate through the gear structure. The second sphere and the first sphere are equipped with sealing strips, and the first sphere and the second sphere are double sealed. Stem adjustment, easy to use, makes the ball valve device seal better.

Above-mentioned technical scheme further comprises:

A fixed plate is installed inside the fixed box, and a fourth connecting rod is movably arranged on the outside of the fixed plate, and two second bevel gears are installed on the outside of the fourth connecting rod.

A third connecting rod is movably provided on the outside of the connecting pipe, and a third bevel gear is installed on the outside of the third connecting rod, and a first sphere is installed on the end of the third connecting rod far away from the third bevel gear.

Sealing strips are installed on the outside of the first sphere and the second sphere, so that the first sphere and the second sphere are closely attached to the inner wall of the connecting pipe.

The third bevel gear meshes with the second bevel gear, and the first bevel gear meshes with the second bevel gear.

The protrusion is engaged with the buckle.

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

1. In the utility model, when the adjustment of the internal ball is completed, the valve stem is pressed in the direction of the adjustment device due to the rotational connection between the valve stem and the first connecting rod, and the protrusion is snapped into the square groove through the connecting block. The buckle is removed, so as to fix the valve stem and prevent the valve stem from loosening during long-term work. It does not require too much operation and is easy to use.

2. In the utility model, when the ball valve device needs to be sealed, the valve stem is rotated, and the valve stem drives the first connecting rod to rotate. When the first connecting rod rotates, it drives the second sphere to rotate, and the second sphere rotates through the gear at the same time. The structure drives the first sphere to rotate, the second sphere and the first sphere are equipped with sealing strips, double sealing, the same valve stem adjustment, easy to use, so that the sealing effect of the ball valve device is better, and it also prevents a certain sphere from working for a long time. Excessive friction leads to damage, which affects the use of the ball valve device.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a kind of two-way sealing type ball valve device proposed by the utility model;

Fig. 2 is a schematic diagram of the first overall structure of a two-way sealed ball valve device proposed by the utility model;

Fig. 3 is a second overall structural schematic diagram of a two-way sealed ball valve device proposed by the utility model;

FIG. 4 is an enlarged schematic diagram of the structure at A in FIG. 2 .

In the figure: 1. Connecting port; 2. Connecting pipe; 3. Adjusting device; 4. First connecting rod; 5. Movable rod; 6. Round plate; 7. Valve stem; 8. Connecting block; ;10, square groove; 11, buckle; 12, the second connecting rod; 13, the first bevel gear; 14, the second bevel gear; 15, the third bevel gear; 16, the third connecting rod; 17, the first A sphere; 18, the fixed box; 19, the second sphere; 20, the fixed plate; 21, the fourth connecting rod; 22, the sealing strip.

Detailed ways

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

Embodiment one

As shown in Figure 1-4, a two-way sealed ball valve device proposed by the utility model includes a connecting port 1 and a connecting pipeline 2, a fixed box 18 is installed outside the connecting pipeline 2, and an adjusting device is installed outside the fixed box 18 3. There are a plurality of square grooves 10 inside the adjustment device 3, and buckles 11 are installed inside the square grooves 10. The external movement of the adjustment device 3 is provided with a first connecting rod 4, and the external movement of the first connecting rod 4 A movable rod 5 is provided, and a round plate 6 is installed on the end of the movable rod 5 far away from the first connecting rod 4, and a valve stem 7 is movable outside the movable rod 5, and a connecting block 8 is installed on the outside of the valve rod 7, and the connecting block 8 Protrusion 9 is installed on the outside.

In this embodiment, after the adjustment of the internal sphere is completed, the first connecting rod 4 is connected to the valve stem 7 in rotation through the movable rod 5 provided outside the first connecting rod 4, and the circular plate installed at the end of the movable rod 5 6 to fix the movable rod 5. At this time, the valve rod 7 is pressed in the direction of the adjustment device 3, and the protrusion 9 is snapped into the buckle 11 installed inside the square groove 10 through the connecting block 8. Since the valve The rod 7 is not parallel to the adjusting device 3, so an inclination angle is set between the connecting block 8 and the bump 9, which facilitates the snapping of the bump 9 into the square groove 10, realizes the fixing of the valve stem, and prevents the valve stem from The work of time will cause looseness, which will affect the use of the ball valve device.

Embodiment two

As shown in Figure 1, on the basis of Embodiment 1, the end of the first connecting rod 4 away from the movable rod 5 is installed with a second sphere 19, and the end of the second sphere 19 away from the first connecting rod 4 is installed with a second connecting rod 12. The end of the second connecting rod 12 far away from the second sphere 19 is equipped with a first bevel gear 13, the inside of the fixed box 18 is equipped with a fixed plate 20, and the external part of the fixed plate 20 is equipped with a third bevel gear 15, the third bevel gear Two second bevel gears 14 are installed on the outside of the gear 15, a fourth connecting rod 21 is installed on the outside of the connecting pipe 2, and a third connecting rod 16 is installed on the outside of the fourth connecting rod 21, and the fourth connecting rod 21 is far away from the first connecting rod. A first sphere 17 is installed on one end of the three connecting rods 16 , and a sealing strip 22 is installed on the outside of the first sphere 17 and the second sphere 19 .

In this embodiment, when the ball valve device needs to be sealed, the valve stem 7 is rotated, the valve stem 7 drives the first connecting rod 4 to rotate, and the first connecting rod 4 rotates to drive the second sphere 19 to rotate, and the second sphere 19 rotates At the same time, it drives the second connecting rod 12 to rotate, and the first bevel gear 13 installed outside the second connecting rod 12 meshes with the second bevel gear 14, thereby driving the fourth connecting rod 21 to rotate, and at the same time, the second bevel gear 14 and the third bevel gear The bevel gear 15 is meshed and drives the third connecting rod 16 to rotate. When the third connecting rod 16 rotates, it drives the first spheroid 17 to rotate. The first spheroid 17 and the second spheroid 19 are equipped with sealing strips 22 outside. The first spheroid 17 makes the first spheroid 17 rotate. The second sphere 19 fits tightly with the inside of the connecting pipe 2 to improve the sealing effect. At the same time, the first sphere 17 and the second sphere 19 are double-sealed to the ball valve device, and the same valve stem is adjusted, which is easy to use and makes the ball valve device more effective. At the same time, it also prevents a certain ball from working for a long time, causing damage due to excessive friction, thereby affecting the use of the ball valve device.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. The bidirectional sealed ball valve device comprises a connecting port (1) and a connecting pipeline (2), and is characterized in that a fixed box (18) is mounted outside the connecting pipeline (2), an adjusting device (3) is mounted outside the fixed box (18), a plurality of square grooves (10) are formed in the adjusting device (3), buckles (11) are mounted inside the square grooves (10), a first connecting rod (4) is movably arranged outside the adjusting device (3), a movable rod (5) is movably arranged outside the first connecting rod (4), a round plate (6) is mounted at one end, far away from the first connecting rod (4), of the movable rod (5), a valve rod (7) is movably arranged outside the movable rod (5), a connecting block (8) is mounted outside the valve rod (7), and a convex block (9) is mounted outside the connecting block (8);

a second sphere (19) is installed at one end, far away from the movable rod (5), of the first connecting rod (4), a second connecting rod (12) is installed at one end, far away from the first connecting rod (4), of the second sphere (19), and a first bevel gear (13) is installed at one end, far away from the second sphere (19), of the second connecting rod (12).

2. A two-way sealed ball valve device according to claim 1, wherein a fixed plate (20) is mounted inside the fixed box (18), a fourth connecting rod (21) is movably arranged outside the fixed plate (20), and two second bevel gears (14) are mounted outside the fourth connecting rod (21).

3. A bidirectional sealing type ball valve device according to claim 2, characterized in that a third connecting rod (16) is movably arranged outside the connecting pipe (2), a third bevel gear (15) is arranged outside the third connecting rod (16), and a first ball (17) is arranged at one end of the third connecting rod (16) far away from the third bevel gear (15).

4. A two-way sealed ball valve apparatus according to claim 3, wherein seals (22) are mounted on the exterior of said first ball (17) and said second ball (19).

5. A two-way sealed ball valve apparatus according to claim 3, wherein said third bevel gear (15) is engaged with said second bevel gear (14), and said first bevel gear (13) is engaged with said second bevel gear (14).

6. A device according to claim 1, wherein said projection (9) is snap-fitted to said catch (11).

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