Ball valve seat sealing structure

Abstract

The utility model relates to the field of ball valve seats, and discloses a ball valve seat sealing structure which comprises valve pipes, flange connecting rings are fixedly connected to the opposite ends of the valve pipes on the left side and the right side, ball valve bodies are rotationally connected to the upper ends and the lower ends of the inner walls of the flange connecting rings, and fixing plates are fixedly connected to the upper ends of the ball valve bodies. The outer wall of the fixing plate is connected with sealing rubber rings through an expansion assembly, the sealing rubber rings are slidably connected to the inner wall of the valve pipe and the valve, the inner wall of the valve is slidably connected with an adjusting rod, the inner wall of the bottom end of the adjusting rod is connected with clamping blocks through an adjusting assembly, and the opposite ends of the clamping blocks penetrate through the inner wall of the valve. The top end of the adjusting ring is rotationally connected to the bottom end of the adjusting rod. In the utility model, the valve is limited by the clamping block, so that the valve cannot be mistakenly touched in the conventional use process, the valve body is further opened, the mistakenly touched and touched by workers are effectively prevented, the equipment is protected from being damaged by external objects, and the production safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of ball valve seats, in particular to a ball valve seat sealing structure. Background Art

[0002] A ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the valve axis. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method. They are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electric power, municipal administration, steel and other industries.

[0003] At present, after the existing ball valve is installed, the ball shaft of the ball valve can usually be directly controlled by the valve to rotate, so accidental touch often occurs during daily operation, which may cause the ball valve to accidentally change from a closed state to an open state, which may cause the fluid to lose control, cause leakage or unexpected flow, and thus cause a safety accident.

[0004] In this regard, to address the technical problem that the ball valve is prone to accidental touch, the present application proposes a ball valve seat sealing structure. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a ball valve seat sealing structure. The valve is limited by a block, ensuring that the valve cannot be accidentally touched during normal use, thereby opening the valve body, effectively preventing workers from accidentally touching or touching it, protecting the equipment from damage by external objects, and improving production safety.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A ball valve seat sealing structure, comprising:

[0008] The valve pipe has flange connecting rings fixedly connected to the opposite ends of the left and right valve pipes. The upper and lower ends of the inner walls of the flange connecting rings are rotatably connected to the ball valve body. The upper end of the ball valve body is fixedly connected to a fixing plate. The outer wall of the fixing plate is connected to a sealing rubber ring through an expansion component. The sealing rubber rings are all slidably connected to the inner wall of the valve pipe.

[0009] The valve has an adjusting rod slidably connected to the inner wall of the valve, and the inner wall of the bottom end of the adjusting rod is connected to a clamping block through an adjusting assembly. The opposite ends of the clamping blocks pass through the inner wall of the valve, the top end of the adjusting ring is rotatably connected to the bottom end of the adjusting rod, and the outer wall of the valve is rotatably connected to the inner wall of the top end of the flange connecting ring.

[0010] Furthermore, the expansion assembly includes an adjustment ring slidably connected to the bottom end of the outer wall of the fixed plate, and the left and right sides of the adjustment ring are rotatably connected to connecting rods.

[0011] Furthermore, the top of one opposite end of the sealing rubber ring is rotatably connected to the opposite end of the connecting rod, and the opposite end of the sealing rubber ring is fixedly connected to a first spring, and the other end of the first spring is fixedly connected to the opposite end of the inner wall of the valve tube.

[0012] Furthermore, the adjustment assembly includes a telescopic frame fixedly connected to the left and right sides of the inner wall of the bottom end of the adjustment rod, the bottom end of the telescopic frame is fixedly connected to the top of the fixed plate, and the telescopic frame is rotatably connected to a connecting block at one relative end.

[0013] Furthermore, one opposite end of the connecting block is fixedly connected to a second spring, and one opposite end of the clamping block is fixedly connected to an opposite end of the connecting block.

[0014] Furthermore, four sides of the inner wall of the top end of the flange connection ring are provided with clamping grooves, and the shape and size of the clamping grooves are consistent with the end opposite to the clamping block.

[0015] Furthermore, an anti-sliding block is provided on the outer wall of the top end of the regulating rod, so that the rotation of the valve can better drive the regulating rod to rotate, thereby preventing slipping between the valve and the regulating rod.

[0016] Furthermore, the top of the fixing plate is in a straight line shape, and the opening at the bottom end of the adjusting rod matches the shape of the top of the fixing plate.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, the valve is limited by a block, so that the valve cannot be opened during normal use. The regulating rod must be pressed down to rotate it, thereby effectively preventing workers from accidentally touching or touching it, protecting the equipment from damage by external objects, and improving production safety.

[0019] In the utility model, the sealing rubber ring can be separated from the release surface when the ball valve rotates, and can be tightly attached to the ball valve again under the action of the first spring after the rotation is completed, thereby reducing the wear of the sealing rubber ring, ensuring its working effect and time, and thus improving the sealing effect and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of a valve pipe of a ball valve seat sealing structure proposed by the utility model;

[0021] Figure 2 This is a three-dimensional diagram of a ball valve seat sealing structure proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the sealing rubber ring structure of a ball valve seat sealing structure proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the valve structure of a ball valve seat sealing structure proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of a ball valve seat sealing structure proposed by the utility model;

[0025] Figure 6 This is a schematic diagram of the regulating rod structure of a ball valve seat sealing structure proposed by the utility model;

[0026] Figure 7 for Figure 6 Schematic diagram of the structure at point A in the middle.

[0027] Legend:

[0028] 1. Flange connecting ring; 2. Valve pipe; 3. Valve; 4. Adjusting rod; 5. Ball valve body; 6. Sealing rubber ring; 7. First spring; 8. Adjusting ring; 9. Connecting rod; 10. Fixing plate; 11. Connecting block; 12. Second spring; 13. Telescopic bracket; 14. Clamping block; 15. Clamping slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 2-Figure 4 , the utility model provides an embodiment: a ball valve seat sealing structure, including a valve pipe 2, the left and right valve pipes 2 are fixedly connected to the opposite ends with flange connecting rings 1, the upper and lower ends of the inner wall of the flange connecting ring 1 are rotatably connected to the ball valve body 5, the upper end of the ball valve body 5 is fixedly connected to the fixed plate 10, the outer wall of the fixed plate 10 is provided with a sealing rubber ring 6, the sealing rubber rings 6 are all slidably connected to the inner wall of the valve pipe 2, the bottom end of the outer wall of the fixed plate 10 is slidably connected to the adjusting ring 8, the left and right sides of the adjusting ring 8 are rotatably connected to the connecting rod 9, the top of the opposite end of the sealing rubber ring 6 is respectively rotatably connected to the opposite end of the connecting rod 9, the opposite ends of the sealing rubber ring 6 are fixedly connected to the first spring 7, and the other end of the first spring 7 is respectively fixedly connected to the opposite end of the inner wall of the valve pipe 2.

[0031] Specifically, pressing the valve 3 will drive the adjusting ring 8 to move downward, and the movement of the adjusting ring 8 will drive the connecting rods 9 on both sides to expand, thereby separating the sealing rubber ring 6 from the surface of the ball valve body 5. At this time, the first spring 7 will be compressed. At this time, the rotation of the ball valve body 5 will not rub against the sealing rubber ring 6, thereby reducing the wear of the sealing rubber ring 6, thereby ensuring the use effect of the sealing rubber ring 6. After the rotation is completed, the adjusting rod 4 will be loosened. At this time, the first spring 7 will push the sealing rubber ring 6 toward the ball valve body 5 and close to the ball valve body 5, thereby ensuring the sealing of the pipeline. At this time, the connecting rod 9 will be lifted up again by the adjusting ring 8 and reset.

[0032] Reference Figure 1 、 Figure 5 and Figure 6 , valve 3, the inner wall of the valve 3 is slidably connected with an adjusting rod 4, and a block 14 is provided on the inner wall of the bottom end of the adjusting rod 4. The opposite end of the block 14 passes through the inner wall of the valve 3, and the top of the adjusting ring 8 is rotatably connected to the bottom end of the adjusting rod 4. The outer wall of the valve 3 is rotatably connected to the inner wall of the top of the flange connecting ring 1. The left and right sides of the inner wall of the bottom end of the adjusting rod 4 are fixedly connected with a telescopic frame 13, and the bottom end of the telescopic frame 13 is fixedly connected to the top of the fixed plate 10. The opposite end of the telescopic frame 13 is rotatably connected to a connecting block 11, and the connecting block 11 is fixedly connected to the opposite end It is connected to a second spring 12, and the opposite ends of the card blocks 14 are fixedly connected to the opposite ends of the connecting blocks 11. Card grooves 15 are provided on all four sides of the inner wall of the top of the flange connecting ring 1. The shape and size of the card grooves 15 are consistent with the opposite ends of the card blocks 14. An anti-sliding block is provided on the outer wall of the top of the adjusting rod 4 so that the rotation of the valve 3 can better drive the adjusting rod 4 to rotate and prevent slipping between the valve 3 and the adjusting rod 4. The top of the fixed plate 10 is in a straight shape, and the opening at the bottom end of the adjusting rod 4 is consistent with the shape of the top of the fixed plate 10.

[0033] Specifically, in order to release the lower limit of valve 3, press the regulating rod 4 downward, refer to Figure 7 At this time, the telescopic frame 13 will be compressed under the cooperation of the adjusting rod 4 and the fixing plate 10, and the connecting block 11 will be driven to move inward. At this time, the block 14 will be disengaged from the slot 15 and retracted into the valve 3. At this time, the limit between the valve 3 and the flange connecting ring 1 will be released. At this time, rotating the valve 3 will drive the adjusting rod 4 to rotate, and the adjusting rod 4 will act as a medium to rotate the fixing plate 10, thereby rotating the ball valve body 5, thereby controlling the opening and closing of the valve body. After the rotation is completed, the block 14 will coincide with the slot 15 on the other side. At this time, the adjusting rod 4 is released, and the adjusting rod 4 will be lifted under the reaction force of the second spring 12, and the block 14 will be re-stuck in the slot 15. At this time, the valve 3 will be re-stuck, thereby preventing it from being accidentally touched.

[0034] Working principle: After the valve body is installed in the pipeline, it will be in the closed state. At this time, the adjusting rod 4 is pressed downward, which will cause the telescopic frame 13 to be compressed, and the connecting block 11 to retract inward, thereby retracting the block 14, thereby releasing the limit of the valve 3 as a whole. At this time, the valve 3 is turned, and the valve 3 will drive the adjusting rod 4 to rotate, and the adjusting rod 4 will drive the ball valve body 5 to rotate, thereby turning the ball valve body 5 to the open state. Since the adjusting rod 4 moves downward, it will drive the adjusting ring 8 to move downward, thereby expanding the connecting rod 9 to both sides, and the expansion of the connecting rod 9 The tension will drive the sealing rubber rings 6 on both sides to separate from the ball valve body 5 and compress the first spring 7, thereby reducing the friction of rotation, thereby ensuring the use state of the sealing rubber ring 6. After the rotation is completed, the adjusting rod 4 is released. At this time, the adjusting rod 4 will be lifted upward under the action of the second spring 12. At this time, the block 14 will be re-inserted into the flange connecting ring 1, and the sealing rubber ring 6 will be tightly attached to the ball valve body 5 under the reaction force of the first spring 7, thereby ensuring the sealing of the valve body, and the adjusting ring 8 will be reset under the action of the adjusting rod 4 and the connecting rod 9, thereby ensuring the next rotation.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ball valve seat sealing structure, characterized in that: include: A valve tube (2), wherein the valve tubes (2) on the left and right sides are fixedly connected to opposite ends thereof with flange connection rings (1), the upper and lower ends of the inner wall of the flange connection ring (1) are rotatably connected to the ball valve body (5), the upper end of the ball valve body (5) is fixedly connected to a fixing plate (10), the outer wall of the fixing plate (10) is connected to a sealing rubber ring (6) via an expansion component, and the sealing rubber rings (6) are all slidably connected to the inner wall of the valve tube (2); A valve (3) and an adjusting ring (8); the inner wall of the valve (3) is slidably connected to an adjusting rod (4); the inner wall of the bottom end of the adjusting rod (4) is connected to a clamping block (14) through an adjusting assembly; the opposite ends of the clamping blocks (14) penetrate the inner wall of the valve (3); the top end of the adjusting ring (8) is rotatably connected to the bottom end of the adjusting rod (4); and the outer wall of the valve (3) is rotatably connected to the inner wall of the top end of the flange connection ring (1).

2. A ball valve seat sealing structure according to claim 1, characterized in that: The expansion assembly comprises an adjustment ring (8) slidably connected to the bottom end of the outer wall of the fixed plate (10), and the left and right sides of the adjustment ring (8) are both rotatably connected to connecting rods (9).

3. A ball valve seat sealing structure according to claim 2, characterized in that: The top of one opposite end of the sealing rubber ring (6) is rotatably connected to the opposite end of the connecting rod (9), and the opposite end of the sealing rubber ring (6) is fixedly connected to a first spring (7), and the other end of the first spring (7) is fixedly connected to the opposite end of the inner wall of the valve tube (2).

4. The ball valve seat sealing structure according to claim 1, characterized in that: The adjustment assembly comprises a telescopic frame (13) fixedly connected to both left and right sides of the inner wall of the bottom end of the adjustment rod (4); the bottom end of the telescopic frame (13) is fixedly connected to the top end of the fixed plate (10); and the opposite end of the telescopic frame (13) is rotatably connected to a connecting block (11).

5. The ball valve seat sealing structure according to claim 4, characterized in that: The connecting block (11) is fixedly connected to a second spring (12) at one opposite end, and the clamping block (14) is fixedly connected to an opposite end of the connecting block (11) at one opposite end.

6. The ball valve seat sealing structure according to claim 1, characterized in that: The four sides of the inner wall of the top end of the flange connection ring (1) are all provided with clamping grooves (15), and the shape and size of the clamping grooves (15) are all matched with the end opposite to the clamping block (14).

7. The ball valve seat sealing structure according to claim 1, characterized in that: The outer wall of the top end of the regulating rod (4) is provided with an anti-sliding block so that the rotation of the valve (3) can better drive the regulating rod (4) to rotate, thereby preventing the valve (3) and the regulating rod (4) from slipping.

8. The ball valve seat sealing structure according to claim 1, characterized in that: The top end of the fixing plate (10) is in a straight line shape, and the bottom end opening of the adjusting rod (4) matches the shape of the top end of the fixing plate (10).

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