Conveniently repaired C-type ball valve

Abstract

The utility model provides a kind of C type ball valve of convenient maintenance, it is related to C type ball valve technical field, including valve body, inner conveying cylinder and upper valve seat, the valve port is arranged in the center of valve body, and the upper part of valve body is provided with inlay, and the lower part of valve body is provided with blowdown, the upper valve seat is installed in inlay, and the middle part of upper valve seat is provided with cover, the lower sealing structure is installed in blowdown, and the left and right two parts of valve body are all provided with first connecting thread, and a group of inner conveying cylinder is installed in first connecting thread, the outer end of inner conveying cylinder is provided with outer sleeve plate, and inner conveying cylinder is split connection between valve body, and inner conveying cylinder adopts ceramic silicon material quality.The utility model is convenient to the structure in each valve body is individually split to clean, overhaul or replace, not only can be conveniently and quickly overhauled, but also convenient to discharge the waste liquid stored in valve body, cleaning and overhauling are more convenient, convenient and practical.

Description

Technical Field

[0001] This utility model relates to the field of C-type ball valve technology, and specifically to a C-type ball valve that is easy to maintain. Background Technology

[0002] C-type ball valves, also known as eccentric hemispherical valves, rely on rotating a hemisphere to open or close the valve. They are easy to operate, compact, can be made in large diameters, offer reliable sealing, have a simple structure, are easy to maintain, and the sealing surface and the ball are constantly in a closed state, making them less susceptible to erosion by the medium. They are widely used in applications requiring strict sealing, such as petroleum, chemical, and urban water supply and drainage systems.

[0003] In the instruction manual of a ball valve with convenient maintenance (publication number CN209638434U), it is stated that "a collar is fixedly installed on the outer surface of the upper middle part of the valve body, a pressure cap is provided on the upper outer surface of the collar, a valve stem is provided in the middle of the pressure cap, a crossbar is provided on the upper outer surface of the valve stem, a screw is provided on one side of the upper outer surface of the crossbar, a ball is provided on the inner surface of the middle part of the valve body, a sealing ring is fixedly installed on the inner surface of the lower end of the collar, a fixing ring is fixedly installed on the outer surface of the middle part of the valve stem, a rectangular floating protrusion is fixedly installed on the outer surface of the lower end of the valve stem, a rectangular groove is opened on the outer surface of the upper end of the ball, a first rubber ring is fixedly installed on one side of the outer surface of the ball, and a second rubber ring is fixedly installed on the other side of the outer surface of the ball." However, during maintenance of the prior art, the internal flow channel of the valve body is prone to wear after long-term use, and the waste liquid accumulated inside is not easy to remove. Furthermore, the valve stem and the ball need to be disassembled separately for maintenance, which is not convenient or quick. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a C-type ball valve that is easy to maintain is provided. This solves the problems of easy wear and tear on the internal flow channel of the valve body after long-term use, difficulty in cleaning the accumulated waste liquid inside, and the need to disassemble the valve stem and ball separately for maintenance, which is inconvenient and slow.

[0005] To achieve the above objectives, a C-type ball valve that is easy to maintain is provided, comprising a valve body, an inner conveying cylinder, and an upper valve seat. A valve port is provided at the center of the valve body, and a recess is provided at the upper part of the valve body, and a drain port is provided at the lower part of the valve body. An upper valve seat is installed in the recess, and a cover plate is provided in the middle of the upper valve seat. A lower sealing structure is installed in the drain port, and a first connecting thread is provided in both the left and right parts of the valve body, and a set of inner conveying cylinders is installed at each of the first connecting threads.

[0006] Furthermore, the valve body has an inlet at the left end and an outlet at the right end, and the inlet, valve port and outlet are connected to each other.

[0007] Furthermore, the upper left and right sides of the valve body are provided with first screw holes, and the middle of the upper valve seat is provided with a cover plate. The left and right sides of the cover plate are provided with second screw holes, and fastening bolts are installed between the second screw holes and the first screw holes. The fastening bolts are detachable.

[0008] Furthermore, a sealing plug is provided at the upper part of the lower sealing structure, and the sealing plug is screwed into the drain port by threads. A lower connecting rod is provided at the lower part of the lower sealing structure, and a lower turntable is provided at the lower end of the lower connecting rod. The lower sealing structure is detachably connected to the valve body.

[0009] Furthermore, the outer end of the inner conveying cylinder is provided with an outer sleeve plate, and the inner conveying cylinder is detachably connected to the valve body, and the inner conveying cylinder is made of ceramic silicon material.

[0010] Furthermore, an upper handwheel is provided on the upper right side of the upper valve seat, and an upper connecting rod is installed at the center of the upper valve seat. The lower end of the upper connecting rod is fixed to the upper end of the valve stem, and the upper end of the upper connecting rod is installed at the lower part of the controller.

[0011] Furthermore, the lower part of the cover plate is provided with an upper insert block, which is fitted into the insert opening, and an outer sealing sleeve is provided on the outside of the upper insert block. The outer sealing sleeve is placed outside the upper port of the valve body. A C-shaped ball is installed at the lower end of the valve stem at the center of the upper insert block. The upper connecting rod, valve stem and C-shaped ball are all rotatable structures, and the C-shaped ball is located inside the valve port.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. In this utility model, an inner conveying cylinder is threadedly engaged in the inner channels on both the left and right sides of the valve body. The inner conveying cylinder is made of sturdy, wear-resistant and durable material, which can reduce the impact and wear of the medium on the inside of the valve body. In addition, the inner conveying cylinder is easy to install or replace, which makes the valve body have a longer service life.

[0014] 2. In this utility model, the upper valve seat is fitted into the socket by the upper insert block, and the C-shaped ball enters the valve port in the next step. Then, the fastening bolt is used to fasten it between the second screw hole and the first screw hole, so that it is tightly and firmly installed. It is convenient to rotate the upper connecting rod to drive the valve stem and the C-shaped ball to rotate and move together to achieve the purpose of opening and closing the valve port, which is more convenient and practical.

[0015] 3. The lower sealing structure of this utility model is easy to assemble and disassemble, making it convenient to separately discharge waste liquid accumulated in the valve body, facilitate backwashing and cleaning, and is more convenient and practical. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0017] Figure 2This is a schematic diagram of the inside of the valve body according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the lower sealing structure according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the inner conveying cylinder according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the upper valve seat structure according to an embodiment of the present utility model.

[0021] In the diagram: 1. Valve body; 10. Valve port; 11. Drain outlet; 12. Inlet; 13. Outlet; 14. First connecting thread; 15. Insert; 16. First threaded hole; 2. Lower sealing structure; 20. Lower connecting rod; 21. Lower turntable; 22. Sealing plug; 3. Inner conveying cylinder; 43. Outer jacket; 44. Upper valve seat; 40. Cover plate; 41. Fastening bolt; 42. Second threaded hole; 43. Outer sealing sleeve; 44. Upper insert; 45. Valve stem; 46. C-shaped ball; 47. Upper connecting rod; 48. Upper handwheel; 49. Controller. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details, such as particular system structures and technologies, are provided to facilitate a more thorough understanding of the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 2 This is a schematic diagram of the valve body interior according to an embodiment of the present utility model. Figure 3 This is a schematic diagram of the lower sealing structure according to an embodiment of the present utility model. Figure 4 This is a schematic diagram of the inner conveying cylinder according to an embodiment of the present utility model. Figure 5 This is a schematic diagram of the upper valve seat structure according to an embodiment of the present utility model.

[0025] Reference Figures 1 to 5As shown, this utility model provides a C-type ball valve that is easy to maintain, including a valve body 1, an inner conveying cylinder 3 and an upper valve seat 4. A valve port 10 is provided in the center of the valve body 1, and a slot 15 is provided on the upper part of the valve body 1. A drain port 11 is provided on the lower part of the valve body 1. The upper valve seat 4 is installed in the slot 15, and a cover plate 40 is provided in the middle of the upper valve seat 4. A lower sealing structure 2 is installed in the drain port 11. A first connecting thread 14 is provided in both the left and right parts of the valve body 1, and a set of inner conveying cylinders 3 is installed at each of the first connecting threads 14.

[0026] In this embodiment, the valve body 1 has an inlet 12 at its left end and an outlet 13 at its right end, and the inlet 12, valve port 10 and outlet 13 are connected to each other; the inner conveying cylinder 3 has an outer sleeve 30 at its outer end, and the inner conveying cylinder 3 is detachably connected to the valve body 1, and the inner conveying cylinder 3 is made of ceramic silicon material.

[0027] As a preferred embodiment, this utility model has an inner conveying cylinder 3 screwed into the inner channels on both the left and right sides of the valve body 1. The inner conveying cylinder 3 is made of sturdy, wear-resistant and durable material, which can reduce the impact and wear of the medium on the inside of the valve body 1. In addition, the inner conveying cylinder 3 is easy to install or replace, so that the service life of the valve body 1 is longer.

[0028] In this embodiment, the upper left and right sides of the valve body 1 are provided with first screw holes 16, and the middle of the upper valve seat 4 is provided with a cover plate 40. The left and right sides of the cover plate 40 are provided with second screw holes 42, and fastening bolts 41 are installed between the second screw holes 42 and the first screw holes 16. The fastening bolts 41 are detachable. The upper right side of the upper valve seat 4 is provided with an upper handwheel 48, and the center of the upper valve seat 4 is provided with an upper connecting rod 47. The lower end of the upper connecting rod 47 is fixed to the valve stem 4. The upper end of the valve stem 47 is installed at the lower part of the controller 49; the lower part of the cover plate 40 is provided with an upper insert 44, which is fitted into the socket 15, and an outer sealing sleeve 43 is provided on the outside of the upper insert 44. The outer sealing sleeve 43 is placed outside the upper port of the valve body 1. A C-shaped ball 46 is installed at the lower end of the valve stem 45. The upper connecting rod 47, the valve stem 45 and the C-shaped ball 46 are all rotatable structures, and the C-shaped ball 46 is located inside the valve port 10.

[0029] In a preferred embodiment, the upper valve seat 4 is fitted into the socket 15 by the upper insert 44, and the C-shaped ball 46 enters the valve port 10. Then, the fastening bolt 41 is used to fasten it between the second screw hole 42 and the first screw hole 16, so that it is tightly and firmly installed. This makes it convenient to rotate the upper connecting rod 47 to drive the valve stem 45 and the C-shaped ball 46 to rotate together to achieve the purpose of opening and closing the valve port, which is more convenient and practical.

[0030] In this embodiment, a sealing plug 22 is provided on the upper part of the lower sealing structure 2. The sealing plug 22 is screwed into the drain port 11 by threads. A lower connecting rod 20 is provided on the lower part of the lower sealing structure 2. A lower turntable 21 is provided at the lower end of the lower connecting rod 20. The lower sealing structure 2 and the valve body 1 are connected separately.

[0031] As a preferred embodiment, the lower sealing structure 2 of this utility model is easy to assemble and disassemble, facilitates the separate discharge of waste liquid accumulated in the valve body 1, facilitates backwashing and cleaning, and is more convenient and practical.

[0032] This invention effectively solves the problems of wear and tear on the internal flow channel of the valve body during long-term use, difficulty in removing accumulated waste liquid, and the need to disassemble the valve stem and ball for separate maintenance, which is inconvenient and slow. This invention allows for the separate disassembly of each structure inside the valve body for cleaning, maintenance, or replacement, which not only facilitates quick maintenance but also makes it easy to drain accumulated waste liquid from the valve body, making cleaning and maintenance faster and more convenient.

[0033] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A C-type ball valve that is easy to maintain, characterized in that: The valve body (1) includes an inner conveying cylinder (3) and an upper valve seat (4). The valve body (1) has a valve port (10) at its center, an inlet (15) at its upper part, and a drain port (11) at its lower part. The upper valve seat (4) is installed in the inlet (15), and a cover plate (40) is provided in the middle of the upper valve seat (4). A lower sealing structure (2) is installed in the drain port (11). The valve body (1) has a first connecting thread (14) on both the left and right sides, and an inner conveying cylinder (3) is installed at each of the first connecting threads (14).

2. The easily maintainable C-type ball valve according to claim 1, characterized in that, The valve body (1) has an inlet (12) at its left end and an outlet (13) at its right end, and the inlet (12), valve port (10) and outlet (13) are connected to each other.

3. The easily maintainable C-type ball valve according to claim 1, characterized in that, The valve body (1) has a first screw hole (16) on both the upper left and right sides, and a cover plate (40) is provided in the middle of the upper valve seat (4). The cover plate (40) has a second screw hole (42) on both the left and right sides, and a fastening bolt (41) is installed between the second screw hole (42) and the first screw hole (16). The fastening bolt (41) is a detachable structure.

4. The easily maintainable C-type ball valve according to claim 1, characterized in that, The upper part of the lower sealing structure (2) is provided with a sealing plug (22), which is screwed into the drain port (11) by threads. The lower part of the lower sealing structure (2) is provided with a lower connecting rod (20), and the lower end of the lower connecting rod (20) is provided with a lower turntable (21). The lower sealing structure (2) and the valve body (1) are connected separately.

5. A C-type ball valve that is easy to maintain according to claim 1, characterized in that, The outer end of the inner conveying cylinder (3) is provided with an outer sleeve plate (30), and the inner conveying cylinder (3) is detachably connected to the valve body (1), and the inner conveying cylinder (3) is made of ceramic silicon material.

6. A C-type ball valve that is easy to maintain according to claim 1, characterized in that, The upper valve seat (4) has an upper handwheel (48) on the upper right side, and an upper connecting rod (47) is installed at the center of the upper valve seat (4). The lower end of the upper connecting rod (47) is fixed to the upper end of the valve stem (45), and the upper end of the upper connecting rod (47) is installed at the lower part of the controller (49).

7. A C-type ball valve that is easy to maintain according to claim 3, characterized in that, The lower part of the cover plate (40) is provided with an upper insert (44), which is fitted into the socket (15). An outer sealing sleeve (43) is provided on the outside of the upper insert (44). The outer sealing sleeve (43) is placed outside the upper port of the valve body (1). A C-shaped ball (46) is installed at the lower end of the valve stem (45) in the center of the upper insert (44). The upper connecting rod (47), valve stem (45) and C-shaped ball (46) are all rotatable structures, and the C-shaped ball (46) is located inside the valve port (10).

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