Side-mounted easy-to-repair four-eccentric C-shaped ball valve

Abstract

The utility model discloses a four eccentric C type ball valve of side mounted type easy to overhaul, including ball valve body, C type ball and valve rod, be equipped with square groove on C type ball, and valve rod includes upper valve shaft and lower valve shaft, and upper valve shaft still is equipped with lock groove and square coupling piece fixed in lock groove through bolt, and the end of square coupling piece is matched with square groove on C type ball and sets up, and the end of lower valve shaft is matched with square groove and sets up with square structure, still be equipped with side cover plate on ball valve body, and side cover plate is greater than C type ball size setting, the utility model discloses a four eccentric C type ball valve of side mounted type, and the size of side dismounting mouth is greater than C type ball, when disassembling, through the removal bottom cover and the dismounting bolt of side dismounting mouth, C type ball can be disassembled, and then can clean and maintain the sealing ring on the ball and the valve body, and it is convenient for staff to disassemble and overhaul.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a side-mounted, easily maintainable, four-eccentric C-type ball valve. Background Technology

[0002] Eccentric ball valves and flanged gate valves belong to the same type of valve. The difference is that the closing element of the eccentric ball valve is a ball. The ball rotates around the center line of the valve body to open and close. It is a side-mounted, easy-to-maintain quadruple eccentric C-type ball valve. Ball valves are mainly used in pipelines for shut-off, distribution, and changing the flow direction of the medium. Eccentric ball valves have low fluid resistance, and their resistance coefficient is equal to that of a pipe section of the same length. They are easy to operate, open and close quickly, and only require a 90-degree rotation from fully open to fully closed. They are convenient for remote control and easy to maintain. Utility Model Content

[0003] In view of the prior art, the purpose of this utility model is to provide a side-mounted, easily repairable, four-eccentric C-type ball valve. The ball valve can be disassembled by removing the bottom cover and inserting the disassembly bolts from the side disassembly port, which facilitates disassembly and maintenance by the staff.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a side-mounted, easily maintainable, four-eccentric C-type ball valve, comprising a ball valve body, a C-type ball, and a valve stem. The C-type ball is provided with a square groove. The valve stem includes an upper valve shaft and a lower valve shaft. The upper valve shaft is also provided with a locking groove and a square coupling block fixed in the locking groove by bolts. The end of the square coupling block is configured to cooperate with the square groove on the C-type ball. The end of the lower valve shaft has a square structure and is configured to cooperate with the square groove. The ball valve body is also provided with a side cover plate, which is larger than the size of the C-type ball.

[0005] As a further provision of the above solution, the C-shaped ball is provided with a pressure ring fixed to the C-shaped ball by screws and a sealing ring pressed by the pressure ring, and the ball valve body is also provided with a valve body seat that matches the sealing ring.

[0006] As a further feature of the above scheme, the ball valve body has two sets of valve seat grooves for fixing the valve body seat, which are respectively arranged on both sides of the medium flow channel.

[0007] As a further feature of the above solution, the C-shaped ball is also provided with a bottom cover, the bottom end of the lower valve shaft abuts against the inner side of the bottom cover, and a sealing ring is provided between the lower valve shaft and the ball valve body.

[0008] As a further feature of the above scheme, the inner side of the C-shaped ball is provided with a flow section, and the size of the flow section matches the size of the medium flow channel provided on the ball valve body.

[0009] Beneficial effects: The side-mounted eccentric C-type ball valve of this utility model has a side disassembly port, and the size of the side disassembly port is larger than that of the C-type ball. During disassembly, the C-type ball can be disassembled by removing the bottom cover and inserting the disassembly bolt through the side disassembly port. Then, the sealing ring on the ball and the valve body can be cleaned and maintained, which facilitates the disassembly and maintenance by the staff. Attached Figure Description

[0010] Figure 1 This is a front view of the ball valve structure of this utility model.

[0011] Figure 2 This is a side view of the ball valve structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the front cross-sectional structure of the ball valve in this embodiment.

[0013] Figure 4 This is a schematic diagram of the side cross-sectional structure of the ball valve in this embodiment.

[0014] Figure 5 This is a top-view cross-sectional view of the ball valve in the closed state in this embodiment.

[0015] Figure 6 This is a top cross-sectional view of the ball valve in the open state in this embodiment.

[0016] Reference numerals: 1. Ball valve body; 2. C-shaped ball; 21. Screw; 22. Pressure ring; 23. Sealing ring; 26. Flow section; 3. Valve stem; 31. Upper valve shaft; 32. Lower valve shaft; 33. Square coupling block; 34. Bolt; 35. Locking groove; 36. Sealing ring; 4. Valve cover; 5. Bottom cover; 6. Side cover plate; 7. Valve body seat. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0018] like Figure 1-6 The diagram shows a side-mounted, easily maintainable, four-eccentric C-type ball valve, comprising a ball valve body 1, a C-shaped ball 2, and a valve stem 3. The C-shaped ball 2 has a square groove. The valve stem 3 includes an upper valve shaft 31 and a lower valve shaft 32. The upper valve shaft 31 also has a locking groove 35 and a square coupling block 33 fixed in the locking groove 35 by bolts 34. The end of the square coupling block 33 is configured to cooperate with the square groove on the C-shaped ball 2. The end of the lower valve shaft 32 has a square structure and is configured to cooperate with the square groove. The ball valve body 1 also has a side cover plate 6, which is larger than the size of the C-shaped ball 2.

[0019] As a further provision of the above scheme, the C-shaped ball 2 is provided with a pressure ring 22 fixed to the C-shaped ball 2 by screws 21 and a sealing ring 23 pressed by the pressure ring 22. The ball valve body 1 is also provided with a valve body seat 7 that matches the sealing ring 23.

[0020] As a further feature of the above scheme, the ball valve body 1 has two sets of valve seat grooves 71 for fixing the valve body seat 7, which are respectively provided on both sides of the medium flow channel 16.

[0021] As a further provision of the above scheme, the C-shaped ball 2 is also provided with a bottom cover 5, the bottom end of the lower valve shaft 32 abuts against the inner side of the bottom cover 5, and a sealing ring 36 is provided between the lower valve shaft 32 and the ball valve body 1.

[0022] As a further feature of the above scheme, the inner side of the C-shaped ball 2 is provided with a flow section 26, and the size of the flow section 26 matches that of the medium flow channel 16 provided on the ball valve body 1.

[0023] As a further provision of the above scheme, the ball valve body 1 is also provided with a valve cover 4, and a sealing packing gland is provided on the valve cover 4 to seal the valve stem 3 extension port at the upper end of the ball valve body 1.

[0024] refer to Figure 1-6 The side-mounted, easily maintainable, four-eccentric C-type ball valve shown in this embodiment includes a valve body 1, a C-shaped ball 2, and a valve stem 3. The valve stem 3 includes an upper valve shaft 31 and a lower valve shaft 32. The C-shaped ball 2 has a square groove, wherein the square groove corresponding to the upper valve shaft 31 penetrates the wall of the C-shaped ball 2. The upper valve shaft 31 is also connected to the valve body via... Figure 3 and Figure 4 As shown, a locking groove 35 is provided, and a square coupling block 33 is fixed in the locking groove 35 by bolts 34. The end of the square coupling block 33 is configured to cooperate with the square groove on the C-shaped ball 2. During installation, the square coupling block 33 needs to extend from the inside of the C-shaped ball 2 and lock into the locking groove 35 to realize the circumferential linkage of the upper valve shaft 31 to the C-shaped ball 2. The end of the lower valve shaft 32 has a square structure and is configured to cooperate with the square groove. In the scheme of using the square structure, it is best to set some wear-resistant and smooth friction structure between the end of the lower valve shaft 32 and the bottom cover 5. In another embodiment, the part of the lower valve shaft 32 inserted into the C-shaped ball 2 is a round shaft. The groove on the C-shaped ball 2 is matched with a cylindrical groove to facilitate relative rotation. The lower valve shaft 32 mainly plays a supporting role. The ball valve body 1 is also provided with a side cover plate 6, which is larger than the size of the C-shaped ball 2.

[0025] Furthermore, in this embodiment, the C-shaped ball 2 is provided with a pressure ring 22 fixed to the C-shaped ball 2 by screws 21 and a sealing ring 23 pressed by the pressure ring 22. The ball valve body 1 is also provided with a valve body seat 7 that matches the sealing ring 23. The ball valve body 1 has two sets of valve seat grooves 71 for fixing the valve body seat 7, which are respectively provided on both sides of the medium flow channel 16. They can be used to set the position of the valve body seat 7 and install the ball valve according to the usage requirements. Under special working conditions (bidirectional medium flow), a double valve body seat 7 can also be set to perform bidirectional selective sealing rotation by rotating the C-shaped ball 2.

[0026] As a further provision of the above scheme, the C-shaped ball 2 is also provided with a bottom cover 5, the bottom end of the lower valve shaft 32 abuts against the inner side of the bottom cover 5, and a sealing ring 36 is provided between the lower valve shaft 32 and the ball valve body 1.

[0027] As a further feature of the above scheme, the inner side of the C-shaped ball 2 is provided with a flow section 26, and the size of the flow section 26 matches that of the medium flow channel 16 provided on the ball valve body 1.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A side-mounted, easily maintainable, four-eccentric C-type ball valve, comprising a ball valve body (1), a C-type ball (2), and a valve stem (3), characterized in that: The C-shaped ball (2) is provided with a square groove. The valve stem (3) includes an upper valve shaft (31) and a lower valve shaft (32). The upper valve shaft (31) is also provided with a locking groove (35) and a square coupling block (33) fixed in the locking groove (35) by bolts (34). The end of the square coupling block (33) is configured to cooperate with the square groove on the C-shaped ball (2). The end of the lower valve shaft (32) is square and is configured to cooperate with the square groove. The ball valve body (1) is also provided with a side cover plate (6). The side cover plate (6) is larger than the size of the C-shaped ball (2).

2. The side-mounted, easily maintainable, four-eccentric C-type ball valve according to claim 1, characterized in that: The C-shaped ball (2) is provided with a pressure ring (22) fixed on the C-shaped ball (2) by screws (21) and a sealing ring (23) pressed by the pressure ring (22). The ball valve body (1) is also provided with a valve body seat (7) that matches the sealing ring (23).

3. The side-mounted, easily maintainable, four-eccentric C-type ball valve according to claim 1, characterized in that: The C-shaped ball (2) is also provided with a bottom cover (5), the bottom end of the lower valve shaft (32) abuts against the inside of the bottom cover (5), and a sealing ring (36) is provided between the lower valve shaft (32) and the ball valve body (1).

4. A side-mounted, easily maintainable, four-eccentric C-type ball valve according to claim 1, characterized in that: The inner side of the C-shaped ball (2) is provided with a flow section (26), and the size of the flow section (26) matches the size of the medium flow channel (16) provided on the ball valve body (1).

5. A side-mounted, easily maintainable, four-eccentric C-type ball valve according to claim 2, characterized in that: The ball valve body (1) has two sets of valve seat grooves (71) for fixing the valve body seat (7), which are respectively set on both sides of the medium flow channel (16).

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