Ball valve easy to disassemble and assemble

Abstract

The utility model relates to the technical field of ball valves, and discloses a ball valve easy to disassemble and assemble, which comprises a first valve body, a second valve body and a ball body, the middle of the inner bottom surface of the first valve body is rotatably connected with the ball body, and a connecting mechanism is arranged at the front end of the first valve body and comprises a first fixing ring and a second fixing ring. Inner connecting blocks are fixedly connected to the periphery of the front end of the inner wall of the first valve body, inner connecting grooves are formed in the periphery of the rear end of the outer wall of the second valve body, the inner connecting grooves are connected with the inner connecting blocks in a clamped mode, and outer connecting blocks are fixedly connected to the upper end and the lower end of the outer wall of the front end of the first fixing ring. According to the check valve, the inner connecting block and the outer connecting block are connected with the inner connecting groove and the outer connecting groove in a clamped mode, the two-way threaded rod is used in cooperation to drive the clamping block to clamp the limiting block on the first fixing ring, the valve body is prevented from being split, after clamping connection of the limiting block is removed, the second valve body is rotated clockwise, the valve body can be separated, and overhauling and maintaining are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to an easily disassembled and assembled ball valve. Background Technique

[0002] A ball valve is a valve that realizes fluid control by rotating a sphere with holes inside the valve body, and has the advantages of rapid switching, reliable sealing, simple structure, etc., and is widely used in fields such as petroleum, chemical industry, and water treatment.

[0003] However, since the ball valve will inevitably malfunction after long-term use and requires regular maintenance by staff, and the existing ball valves on the market are not convenient for disassembling and assembling between the valve bodies, which increases the difficulty of the staff in performing maintenance work inside the ball valve and reduces the efficiency.

[0004] Therefore, those skilled in the art provide an easily disassembled and assembled ball valve to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the content of the utility model is to solve the disadvantages existing in the prior art, and provide an easily disassembled and assembled ball valve. Through the snap connection between the inner connection block and the outer connection block in the connection mechanism and the inner connection groove and the outer connection groove, and by using the bidirectional threaded rod to drive the clamping block to clamp the limiting block on the first fixing ring to prevent the valve body from separating, and after releasing the snap connection of the limiting block, rotating the second valve body clockwise can separate the valve body, which is convenient for maintenance.

[0006] To achieve the above purpose, the utility model provides an easily disassembled and assembled ball valve, including a first valve body, a second valve body and a sphere. The middle of the inner bottom surface of the first valve body is rotatably connected to the sphere. A connection mechanism is arranged at the front end of the first valve body. The connection mechanism includes a first fixing ring and a second fixing ring. Inner connection blocks are fixedly connected to the four circumferential positions at the front end of the inner wall of the first valve body. Inner connection grooves are opened at the four circumferential positions at the rear end of the outer wall of the second valve body. The inner connection grooves are all snap-connected to the inner connection blocks. Outer connection blocks are fixedly connected to the upper and lower ends of the front outer wall of the first fixing ring. Outer connection grooves are opened at the upper and lower ends of the rear outer wall of the second fixing ring;

[0007] The outer connection grooves are all snap-connected to the outer connection blocks. Limiting mechanisms are arranged on both sides of the first valve body. The limiting mechanism includes two fixing blocks and two bidirectional threaded rods. Moving grooves are opened at the upper and lower ends of the front outer wall of the fixing blocks. Limiting blocks are rotatably connected to the outer walls on both sides of the second fixing ring. Clamping blocks are threadedly connected to the upper and lower ends of the outer wall of the bidirectional threaded rod. One side of each clamping block close to the center of the fixing block penetrates through the first fixing ring and is snap-connected to the limiting block;

[0008] Through the above technical solution, the inner connection block, the outer connection block are clamped and connected with the inner connection groove and the outer connection groove, preventing the separation of the first valve body and the second valve body. Cooperating with the use of the bidirectional threaded rod to drive the clamping block to clamp the limiting block on the first fixing ring, restricting the rotation between the first valve body and the second valve body. After releasing the clamping connection of the limiting block, rotating the second valve body clockwise can separate the valve bodies, facilitating the disassembly and assembly between the valve bodies, and reducing the difficulty of maintenance and repair for the staff.

[0009] Furthermore, a first flange is fixedly connected to the rear end of the first valve body, and a second flange is fixedly connected to the front end of the second valve body;

[0010] Through the above technical solution, by means of the connection holes on the first flange and the second flange fixedly connected to the first valve body and the second valve body, and cooperating with a plurality of bolts and nuts, it is convenient to connect the ball valve to the pipeline.

[0011] Furthermore, a valve stem is fixedly connected to the upper end of the sphere, a pressing plate is fixedly connected to the middle of the upper end of the first valve body, a packing is arranged at the lower end of the pressing plate, the front end of the outer wall of the first valve body is fixedly connected to the first fixing ring, and the rear end of the outer wall of the second valve body is fixedly connected to the second fixing ring;

[0012] Through the above technical solution, the pressing plate is fixed on the first valve body by bolts, firmly pressing the packing filled between the valve stem and the first valve body, fixing the connection between the sphere and the valve stem, enabling the rotation of the valve stem to change the orientation of the opening on the sphere, thereby realizing the opening and closing of the valve. And by respectively fixing the first fixing ring and the second fixing ring on the first valve body and the second valve body, after the outer connection block and the outer connection groove are clamped and connected, the first valve body and the second valve body can be connected together.

[0013] Furthermore, the upper end of the valve stem penetrates through the first valve body and the pressing plate and is fixedly connected with a handle, and the inner wall and the outer wall of the packing are closely attached to the valve stem and the first valve body respectively;

[0014] Through the above technical solution, the handle fixedly connected to the valve stem facilitates the staff to rotate the sphere inside the first valve body, and the packing compacted by the pressing plate is made of polytetrafluoroethylene material, which can fill and block the gap between the valve stem and the first valve body, improving the sealing ability.

[0015] Furthermore, the middle parts of the outer walls on both sides of the first valve body are fixedly connected with fixed blocks, the lower ends of the bidirectional threaded rods are respectively rotatably connected to the bottom surface inside the moving grooves, the upper ends of the bidirectional threaded rods penetrate through the moving grooves to the outside of the fixed blocks, and the clamping blocks slide inside the moving grooves;

[0016] Through the above technical solution, by allowing the upper end of the bidirectional threaded rod rotatably connected to the moving groove to penetrate through the fixed block, it is convenient for the staff to rotate the bidirectional threaded rod, drive the clamping block threadedly connected thereto to move inside the moving groove, and change the clamping state of the clamping block on the limiting block.

[0017] Further, a first sealing ring is fixedly connected to the front end of the first valve body, the front end of the first sealing ring is in close fit with the second valve body, a second sealing ring is fixedly connected to the rear end of the second valve body, and the outer wall of the rear end of the second sealing ring is in close fit with the first valve body;

[0018] Through the above technical solution, by closing the first valve body and the second valve body in a nested manner, and cooperating with the first sealing ring fixedly connected to the first valve body being in close fit with the second valve body and the second sealing ring fixedly connected to the second valve body being in close fit with the first valve body, the sealing performance when the valve bodies are connected is improved.

[0019] Further, a first sealing block is fixedly connected to the middle of the inner wall of the first valve body, a second sealing block is fixedly connected to the rear end of the inner wall of the second valve body, and the outer walls of the front end of the first sealing block and the rear end of the second sealing block are both in close fit with the sphere;

[0020] Through the above technical solution, by making the first sealing block fixedly connected to the inner wall of the first valve body and the second sealing block fixedly connected to the inner wall of the second valve body be in close fit with the surface of the sphere, when the opening on the sphere is perpendicular to the fluid flow channel, the first sealing block and the second sealing block can be used to block the gap between the sphere and the first valve body and the second valve body, thereby preventing fluid flow and improving the sealing performance.

[0021] The utility model has the following beneficial effects:

[0022] An easily disassembled and assembled ball valve proposed by the utility model, through the four inner connecting blocks and two outer connecting blocks in the connecting mechanism being respectively clamped and connected with the four inner connecting grooves and two outer connecting grooves, prevents the first valve body and the second valve body from separating. Cooperating with using the bidirectional threaded rod to drive the clamping block to clamp the limiting block on the first fixing ring, restricting the rotation between the first valve body and the second valve body. After releasing the clamping connection of the limiting block, rotating the second valve body clockwise can separate the valve bodies, thereby facilitating the disassembly and assembly between the valve bodies, reducing the difficulty of maintenance and repair for the staff, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the main structure of an easily disassembled and assembled ball valve proposed by the utility model;

[0024] Figure 2 is an overall exploded view of an easily disassembled and assembled ball valve proposed by the utility model;

[0025] Figure 3 A side sectional view of a ball valve that is easy to disassemble and assemble proposed by the present utility model;

[0026] Figure 4 An axial sectional view of a ball valve that is easy to disassemble and assemble proposed by the present utility model;

[0027] Figure 5 A partial exploded view of a ball valve that is easy to disassemble and assemble proposed by the present utility model;

[0028] Figure 6 is Figure 3 An enlarged view of part A in

[0029] Explanation of reference numerals:

[0030] 1. First valve body; 2. First flange; 3. Second valve body; 4. Second flange; 5. Sphere; 6. Valve stem; 7. Handle; 8. Connecting mechanism; 801. Inner connecting block; 802. Inner connecting groove; 803. First fixing ring; 804. Outer connecting block; 805. Second fixing ring; 806. Outer connecting groove; 9. Limiting mechanism; 901. Fixed block; 902. Moving groove; 903. Bidirectional threaded rod; 904. Block; 905. Limiting block; 10. Pressure plate; 11. Packing; 12. First sealing ring; 13. Second sealing ring; 14. First sealing block; 15. Second sealing block. Specific embodiments

[0031] Next, the technical solutions in the specific embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the specific embodiments of the present utility model. Obviously, the described specific embodiments are only a part of the specific embodiments of the present utility model, rather than all of the specific embodiments. Based on the specific embodiments of the present utility model, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Referring to Figures 1-6 , the present utility model provides a specific embodiment: A ball valve that is easy to disassemble and assemble, including a first valve body 1, a second valve body 3, and a sphere 5. The middle of the inner bottom surface of the first valve body 1 is rotatably connected to the sphere 5. A connecting mechanism 8 is provided at the front end of the first valve body 1. The connecting mechanism 8 includes a first fixing ring 803 and a second fixing ring 805. Inner connecting blocks 801 are fixedly connected to the four peripheral parts of the inner wall of the front end of the first valve body 1. Inner connecting grooves 802 are opened at the four peripheral parts of the outer wall of the rear end of the second valve body 3. The inner connecting grooves 802 are all clamped and connected to the inner connecting blocks 801. Outer connecting blocks 804 are fixedly connected to the upper and lower ends of the outer wall of the front end of the first fixing ring 803. Outer connecting grooves 806 are opened at the upper and lower ends of the outer wall of the rear end of the second fixing ring 805;

[0033] The outer connection grooves 806 are all snap-connected to the outer connection blocks 804. Limiting mechanisms 9 are arranged on both sides of the first valve body 1. The limiting mechanism 9 includes two fixing blocks 901 and two bidirectional threaded rods 903. Moving grooves 902 are formed in the upper and lower ends of the outer wall of the front end of the fixing block 901. Limiting blocks 905 are rotatably connected to the outer walls on both sides of the second fixing ring 805. Clamping blocks 904 are threadedly connected to the upper and lower ends of the outer wall of the rod body of the bidirectional threaded rod 903. One side of each clamping block 904 close to the center of the fixing block 901 penetrates through the first fixing ring 803 and is snap-connected to the limiting block 905.

[0034] Through the four inner connection blocks 801 and two outer connection blocks 804 in the connection mechanism 8 being snap-connected to the four inner connection grooves 802 and two outer connection grooves 806 respectively, the separation of the first valve body 1 and the second valve body 3 is prevented. By using the bidirectional threaded rod 903 to drive the clamping block 904 to clamp the limiting block 905 on the first fixing ring 803, the rotation between the first valve body 1 and the second valve body 3 is restricted. After releasing the snap connection of the limiting block 905 and rotating the second valve body 3 clockwise, the valve bodies can be separated, thus facilitating the disassembly and assembly between the valve bodies, reducing the difficulty of maintenance and repair for the staff, and improving the work efficiency.

[0035] A first flange 2 is fixedly connected to the rear end of the first valve body 1, and a second flange 4 is fixedly connected to the front end of the second valve body 3. By matching the connection holes on the first flange 2 and the second flange 4 fixedly connected to the first valve body 1 and the second valve body 3 with a plurality of bolts and nuts, it is convenient to connect the ball valve to the pipeline. A valve stem 6 is fixedly connected to the upper end of the ball 5, and a pressing plate 10 is fixedly connected to the middle of the upper end of the first valve body 1. A packing 11 is arranged at the lower end of the pressing plate 10. The front end of the outer wall of the first valve body 1 is fixedly connected to a first fixing ring 803, and the rear end of the outer wall of the second valve body 3 is fixedly connected to a second fixing ring 805. The pressing plate 10 is fixed on the first valve body 1 by bolts, firmly pressing the packing 11 filled between the valve stem 6 and the first valve body 1, fixing the connection between the ball 5 and the valve stem 6, so that rotating the valve stem 6 can change the orientation of the opening on the ball 5, thereby realizing the opening and closing of the valve. The first fixing ring 803 and the second fixing ring 805 are respectively fixed on the first valve body 1 and the second valve body 3. After the outer connection block 804 and the outer connection groove 806 are snap-connected, the first valve body 1 and the second valve body 3 can be connected together. The upper end of the valve stem 6 penetrates through the first valve body 1 and the pressing plate 10 and is fixedly connected to a handle 7. The inner wall and the outer wall of the packing 11 are respectively in close contact with the valve stem 6 and the first valve body 1. By means of the handle 7 fixedly connected to the valve stem 6, it is convenient for the staff to rotate the ball 5 inside the first valve body 1. The packing 11 compacted by the pressing plate 10 is made of polytetrafluoroethylene material, which can fill and block the gap between the valve stem 6 and the first valve body 1, improving the sealing ability. The middle parts of the outer walls on both sides of the first valve body 1 are fixedly connected to fixing blocks 901. The lower ends of the bidirectional threaded rods 903 are respectively rotatably connected to the bottom surface inside the moving grooves 902. The upper ends of the bidirectional threaded rods 903 penetrate through the moving grooves 902 to the outside of the fixing blocks 901. The clamping blocks 904 slide inside the moving grooves 902. By allowing the upper ends of the bidirectional threaded rods 903 rotatably connected to the moving grooves 902 to penetrate out of the fixing blocks 901, it is convenient for the staff to rotate the bidirectional threaded rods 903, driving the clamping blocks 904 threadedly connected thereto to move inside the moving grooves 902, changing the clamping state of the clamping blocks 904 on the limiting blocks 905. A first sealing ring 12 is fixedly connected to the front end of the first valve body 1, and the front end of the first sealing ring 12 is in close contact with the second valve body 3. A second sealing ring 13 is fixedly connected to the rear end of the second valve body 3, and the outer wall of the rear end of the second sealing ring 13 is in close contact with the first valve body 1. By closing the first valve body 1 and the second valve body 3 in a nested manner, and matching the first sealing ring 12 fixedly connected to the first valve body 1 with the second valve body 3 and the second sealing ring 13 fixedly connected to the second valve body 3 with the first valve body 1 in close contact, the sealing performance when the valve bodies are connected is improved. A first sealing block 14 is fixedly connected to the middle of the inner wall of the first valve body 1, and a second sealing block 15 is fixedly connected to the rear end of the inner wall of the second valve body 3. The outer walls of the front end of the first sealing block 14 and the rear end of the second sealing block 15 are both in close contact with the ball 5.By making the first sealing block 14 fixedly connected to the inner wall of the first valve body 1 and the second sealing block 15 fixedly connected to the inner wall of the second valve body 3 closely fit the surface of the sphere 5, when the opening on the sphere 5 is perpendicular to the fluid flow channel, the first sealing block 14 and the second sealing block 15 can block the gap between the sphere 5 and the first valve body 1 and the second valve body 3, thereby preventing fluid flow and improving the sealing performance.

[0036] Working principle: When using this easily disassembled ball valve, first, the staff uses bolts and nuts to connect the ball valve to the pipeline system by means of the first flange 2 and the second flange 4 fixedly connected to the first valve body 1 and the second valve body 3. After that, the staff can drive the sphere 5 to rotate inside the first valve body 1 by using the handle 7 to change the opening and closing of the valve. Secondly, after the staff removes the ball valve from the pipeline system, they can rotate the bidirectional threaded rod 903 to drive the clamping block 904 to release the clamping of the limiting block 905, and then open the limiting block 905 to release the restriction on the first fixing ring 803. Then, the staff rotates the second valve body 3 clockwise to release the clamping connection between the inner connecting block 801, the outer connecting block 804 and the inner connecting groove 802, the outer connecting groove 806, separate the valve body, and perform maintenance on the inside. Finally, after the staff completes the maintenance work, they close the second valve body 3 and the first valve body 1, rotate the second valve body 3 counterclockwise to make the inner connecting block 801, the outer connecting block 804 and the inner connecting groove 802, the outer connecting groove 806 be clamped and connected, and cooperate with the bidirectional threaded rod 903 to drive the clamping block 904 to clamp the limiting block 905 on the first fixing ring 803 to complete the assembly of the valve body.

[0037] Finally, it should be noted that the above are only the preferred specific embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing specific embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ball valve that is easy to disassemble and assemble, comprising a first valve body (1), a second valve body (3) and a ball (5), characterized in that: The middle of the inner bottom surface of the first valve body (1) is rotatably connected to the sphere (5). A connection mechanism (8) is provided at the front end of the first valve body (1). The connection mechanism (8) includes a first fixing ring (803) and a second fixing ring (805). Inner connection blocks (801) are fixedly connected to the four peripheral parts of the inner wall at the front end of the first valve body (1). Inner connection grooves (802) are formed in the four peripheral parts of the outer wall at the rear end of the second valve body (3). The inner connection grooves (802) are snap-connected to the inner connection blocks (801). Outer connection blocks (804) are fixedly connected to the upper and lower ends of the outer wall at the front end of the first fixing ring (803). Outer connection grooves (806) are formed in the upper and lower ends of the outer wall at the rear end of the second fixing ring (805). The outer connection grooves (806) are snap-connected to the outer connection blocks (804). Limiting mechanisms (9) are provided on both sides of the first valve body (1). The limiting mechanisms (9) include two fixing blocks (901) and two bidirectional threaded rods (903). Moving grooves (902) are formed in the upper and lower ends of the outer wall at the front end of the fixing blocks (901). Limiting blocks (905) are rotatably connected to the outer walls on both sides of the second fixing ring (805). Clamping blocks (904) are threadedly connected to the upper and lower ends of the outer wall of the bidirectional threaded rod (903). One side of each clamping block (904) close to the center of the fixing block (901) penetrates through the first fixing ring (803) and is snap-connected to the limiting block (905).

2. The quick - disassembling ball valve according to claim 1, wherein: A first flange (2) is fixedly connected to the rear end of the first valve body (1). A second flange (4) is fixedly connected to the front end of the second valve body (3).

3. The disassemblable ball valve according to claim 1, wherein: A valve stem (6) is fixedly connected to the upper end of the sphere (5). A pressing plate (10) is fixedly connected to the middle of the upper end of the first valve body (1). A packing (11) is arranged at the lower end of the pressing plate (10). The outer wall at the front end of the first valve body (1) is fixedly connected to the first fixing ring (803). The outer wall at the rear end of the second valve body (3) is fixedly connected to the second fixing ring (805).

4. The disassemblable ball valve according to claim 3, wherein: The upper end of the valve stem (6) penetrates through the first valve body (1) and the pressing plate (10) and is fixedly connected to a handle (7). The inner wall and the outer wall of the packing (11) are in close contact with the valve stem (6) and the first valve body (1) respectively.

5. A detachable ball valve according to claim 1, characterized in that: The middle parts of the outer walls on both sides of the first valve body (1) are fixedly connected to the fixing blocks (901). The lower ends of the bidirectional threaded rods (903) are rotatably connected to the inner bottom surface of the moving grooves (902). The upper ends of the bidirectional threaded rods (903) penetrate through the moving grooves (902) to the outside of the fixing blocks (901). The clamping blocks (904) slide inside the moving grooves (902).

6. A detachable ball valve according to claim 1, characterized in that: A first sealing ring (12) is fixedly connected to the front end of the first valve body (1). The front end of the first sealing ring (12) is in close contact with the second valve body (3). A second sealing ring (13) is fixedly connected to the rear end of the second valve body (3). The outer wall at the rear end of the second sealing ring (13) is in close contact with the first valve body (1).

7. The disassemblable ball valve according to claim 1, wherein: The middle part of the inner wall of the first valve body (1) is fixedly connected with a first sealing block (14), and the rear end of the inner wall of the second valve body (3) is fixedly connected with a second sealing block (15). The outer walls of the front end of the first sealing block (14) and the rear end of the second sealing block (15) are both in close fit with the sphere (5).

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