Ball valve cover

Abstract

The utility model relates to the technical field of ball valves, in particular to a ball valve cover which comprises a cover plate and an installation seat installed on the side wall of the cover plate, the cover plate is provided with a front face and a back face, and a rubber plug is arranged in the center of the front face of the cover plate. A plurality of arc-shaped grooves are formed in the surface of the rubber plug, and a convex strip is formed between every two adjacent arc-shaped grooves; the arc-shaped grooves are formed, so that a plurality of sealing rings are formed on the inner wall of the ball valve, the sealing effect is enhanced, and the leakage probability is reduced; and by arranging the concave surface, the sealing effect is further enhanced, liquid in the ball valve can be filtered, and the blocking probability of the ball valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, and particularly to a ball valve cover. Background Art

[0002] The existing ball valve cover structure is relatively common. For details, please refer to Figure 1 , such as Figure 1 shown, the ball valve cover includes a metal cover 1, a mounting seat 3 arranged on the side wall of the metal cover 1, and a sealing ring 2 arranged on one side of the metal cover 1. The sealing ring 2 is used to abut against the contact surface of the ball valve to achieve a sealing effect. The edge of the sealing ring 2 is easily worn after long-term use. Since the sealing effect is achieved by forming a closed ring, when the edge of the closed ring is deformed, the sealing effect will become poor.

[0003] Therefore, it is necessary to provide a ball valve cover with a multiple sealing effect. Summary of the Utility Model

[0004] The utility model provides a ball valve cover to solve the above technical problems.

[0005] To achieve the above object, an embodiment of the utility model provides a ball valve cover, including: a cover plate and a mounting seat installed on the side wall of the cover plate. The cover plate has a front surface and a back surface. A rubber plug is arranged at the center position of the front surface of the cover plate. A plurality of arc-shaped grooves are formed on the surface of the rubber plug, and a rib is formed between two adjacent arc-shaped grooves.

[0006] Further, a concave surface is formed on the end surface of the rubber plug far away from the cover plate, and the concave surface is a 1 / 4 arc.

[0007] Further, a retention cavity is arranged inside the rubber plug.

[0008] Further, an arc-shaped filter plate is formed between the retention cavity and the concave surface.

[0009] Further, a plurality of filter holes are formed on the arc-shaped filter plate.

[0010] Further, the filter hole has a head end and a tail end corresponding to the head end. The head end is arranged outside the retention cavity, and the tail end is arranged inside the retention cavity.

[0011] Further, the inner diameter of the filter hole decreases from the head end to the tail end.

[0012] Further, the radius of the rubber plug gradually decreases along the direction away from the cover plate.

[0013] Further, a plurality of sealing rings are formed between the plurality of ribs and the inner wall of the ball valve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By providing a plurality of arc-shaped grooves, a plurality of sealing rings are formed on the inner wall of the ball valve, enhancing the sealing effect and reducing the leakage probability;

[0016] By providing a concave surface, not only the sealing effect is further enhanced, but also the liquid inside the ball valve can be filtered, reducing the probability of blockage of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 FIG. is a schematic structural diagram of a ball valve cover in the prior art;

[0019] Figure 2 FIG. is a perspective view of the optimal embodiment of a ball valve cover of the present utility model;

[0020] Figure 3 FIG. is a perspective view of the optimal embodiment of the rubber plug of the present utility model;

[0021] Figure 4 FIG. is a perspective sectional view of the optimal embodiment of a ball valve cover of the present utility model;

[0022] Figure 5 FIG. is a structural diagram of the optimal embodiment of the filter hole of the present utility model.

[0023] Wherein, 100, cover plate; 101, mounting seat; 200, rubber plug; 201, arc-shaped groove; 202, rib; 203, concave surface; 204, filter hole; 205, retention cavity; 206, head end; 207, tail end. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, and therefore only showing the components related to the present utility model.

[0025] Example 1, please refer to Figure 2 and combine with Figures 3 to 5 , Figure 2 FIG. is a perspective view of the optimal embodiment of a ball valve cover of the present utility model; Figure 3 FIG. is a perspective view of the optimal embodiment of the rubber plug of the present utility model; Figure 4 FIG. is a perspective sectional view of the optimal embodiment of a ball valve cover of the present utility model; Figure 5 FIG. is a structural diagram of the optimal embodiment of the filter hole of the present utility model. As Figures 2 to 5As shown, at least one embodiment provides a ball valve cover, including: a cover plate 100 and a mounting seat 101 mounted on the side wall of the cover plate 100. The cover plate 100 has a front side and a back side. When the plate 100 is in the installed state, its front side abuts against the end face of the ball valve, and the back side faces outward. The mounting seat 101 is used to fixedly connect with the flange on the ball valve. At the center position of the front side of the cover plate 100, there is a rubber plug 200. The rubber plug 200 is used to extend into the interior of the ball valve and abut against its inner wall. A plurality of arc-shaped grooves 201 are formed on the surface of the rubber plug 200, and a rib 202 is formed between two adjacent arc-shaped grooves 201. The annular arc-shaped grooves 201 divide the rubber plug 200 into a plurality of annular ribs 202, thereby achieving the effect of multi-ring contact sealing on the inner wall of the ball valve. In this way, when the edge of one ring wears, the corresponding positions of the remaining rings can maintain sealing, thereby effectively enhancing the sealing effect of the ball valve cover and effectively reducing the probability of ball valve leakage.

[0026] Please continue to refer to Figure 4 and in combination with Figure 5 . As Figures 4 to 5 shown, a retention cavity 205 is provided inside the rubber plug 200. A concave surface 203 is formed on one end face of the cover plate 100. The concave surface 203 is a 1 / 4 arc. An arc-shaped filter sheet is formed between the retention cavity 205 and the concave surface 203. The arc-shaped filter sheet not only plays a filtering effect but also has the effect of making the concave surface 203 expand under pressure to retain the cavity 205, thereby increasing the extrusion pressure between the rib 202 and the inner wall of the ball valve and improving the sealing effect. A plurality of filter holes 204 are formed on the arc-shaped filter sheet. The filter hole 204 has a head end 206 and a tail end 207 corresponding to the head end 206. The head end 206 is arranged outside the retention cavity 205, and the tail end 207 is arranged inside the retention cavity 205. The inner diameter of the filter hole 204 decreases from the head end 206 to the tail end 207. The liquid in the ball valve moves towards the ball valve cover side under the action of pressure. The liquid will enter the retention cavity 205 and then return to the ball valve and finally discharge from the remaining outlets. When the liquid enters the retention cavity 205, foreign matters will be left behind, playing a filtering effect.

[0027] Embodiment 2, as Figures 2 to 5As shown, at least one embodiment provides a ball valve cover, including: a cover plate 100 and a mounting seat 101 installed on the side wall of the cover plate 100. The cover plate 100 has a front side and a back side. When the plate 100 is in the installed state, its front side abuts against the end face of the ball valve, and the back side faces outward. The mounting seat 101 is used to fixedly connect to the flange on the ball valve. At the center position of the front side of the cover plate 100, a rubber plug 200 is provided. The rubber plug 200 is used to extend into the interior of the ball valve and abut against its inner wall. A plurality of arc-shaped grooves 201 are formed on the surface of the rubber plug 200, and a rib 202 is formed between two adjacent arc-shaped grooves 201. The annular arc-shaped grooves 201 divide the rubber plug 200 into a plurality of annular ribs 202, thereby achieving the effect of multi-ring contact sealing on the inner wall of the ball valve. In this way, when the edge of one ring wears, the corresponding positions of the remaining rings can maintain sealing, thereby effectively enhancing the sealing effect of the ball valve cover and effectively reducing the probability of ball valve leakage. The radius of the rubber plug 200 gradually decreases in the direction away from the cover plate 100. A plurality of ribs 202 and the inner wall of the ball valve form a plurality of sealing rings. When the ribs 202 abut against the inner wall of the ball valve, the closer to the cover plate 100, the greater the mutual extrusion force and the better the sealing effect.

[0028] Please continue to refer to Figure 4 and in combination with Figure 5 . As Figures 4 to 5 shown, a retention cavity 205 is provided inside the rubber plug 200. A concave surface 203 is formed on one end face of the cover plate 100. The concave surface 203 is a 1 / 4 arc. An arc-shaped filter plate is formed between the retention cavity 205 and the concave surface 203. The arc-shaped filter plate not only plays a filtering role but also has the effect of pressing the concave surface 203 to expand the retention cavity 205, thereby increasing the extrusion force between the rib 202 and the inner wall of the ball valve and improving the sealing effect. A plurality of filter holes 204 are formed on the arc-shaped filter plate. The filter hole 204 has a first end 206 and a corresponding tail end 207. The first end 206 is arranged outside the retention cavity 205, and the tail end 207 is arranged inside the retention cavity 205. The inner diameter of the filter hole 204 decreases from the first end 206 to the tail end 207. The liquid in the ball valve moves towards the ball valve cover side under the action of pressure. The liquid will enter the retention cavity 205 and then return to the ball valve and finally discharge from the remaining outlets. When the liquid enters the retention cavity 205, foreign matters will be left behind, playing a filtering role.

[0029] It should be further noted that a cleaning hole is provided on the back side of the cover plate 100, and a cleaning cover is provided on the cleaning hole. A part of the cleaning cover extends into the retention cavity 205. When there are more foreign matters in the retention cavity 205, the interior can be cleaned by pulling out the cleaning cover.

[0030] In summary, by setting multiple arc-shaped grooves 201, the formation of multiple sealing rings on the inner wall of the ball valve is achieved, enhancing the sealing effect and reducing the leakage probability; by setting the concave surface 203, not only is the sealing effect further enhanced, but also the liquid inside the ball valve can be filtered, reducing the probability of ball valve blockage.

[0031] Inspired by the above ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A ball valve cover, characterized in that, Comprising: A cover plate (100) and a mounting base (101) mounted on the side wall of the cover plate (100). The cover plate (100) has a front surface and a back surface. A rubber plug (200) is provided at the center position of the front surface of the cover plate (100). A plurality of arc-shaped grooves (201) are formed on the surface of the rubber plug (200), and a rib (202) is formed between two adjacent arc-shaped grooves (201).

2. The ball valve cover according to claim 1, characterized in that: A concave surface (203) is formed on the end surface of the rubber plug (200) away from the cover plate (100), and the concave surface (203) is a quarter of a circle.

3. A ball valve cover as claimed in claim 2, wherein: A retention cavity (205) is provided inside the rubber plug (200).

4. A ball valve cover according to claim 3, characterized in that: An arc-shaped filter sheet is formed between the retention cavity (205) and the concave surface (203).

5. A ball valve cover according to claim 4, characterized in that: A plurality of filter holes (204) are formed in the arc-shaped filter sheet.

6. A ball valve cover according to claim 5, characterized in that: The filter hole (204) has a head end (206) and a tail end (207) corresponding to the head end (206). The head end (206) is arranged outside the retention cavity (205), and the tail end (207) is arranged inside the retention cavity (205).

7. A ball valve cover according to claim 6, characterized in that: The inner diameter of the filter hole (204) decreases from the head end (206) to the tail end (207).

8. A ball valve cover according to claim 1, characterized in that: The radius of the rubber plug (200) gradually decreases in the direction away from the cover plate (100).

9. A ball valve cover according to claim 8, characterized in that: A plurality of sealing rings are formed between the plurality of ribs (202) and the inner wall of the ball valve.

Images