Engineering plastic ball valve with anticorrosive lining

Abstract

The utility model discloses an engineering plastic ball valve with anticorrosive lining, including valve body and two installation frames, two installation frames are respectively communicated in the both ends of valve body, the outer surface of valve body is connected with fixed frame, the outer surface fixed frame is connected with the valve cover of screw thread, two installation frames are away from the one end of valve body and all be provided with the installation ring. The utility model discloses, through setting valve body, installation frame, fixed frame, installation ring, anticorrosive cover, sealing ring, limit block, positioning block, connecting pipe, fixed ring, positioning rod and fixed cover etc. the cooperation of parts, realized the function that anticorrosive cover was disassembled, improved the installation mode of anticorrosive cover among the prior art, so that when anticorrosive cover is damaged, can disassemble and replace anticorrosive cover, can replace the connecting pipe of valve body both ends simultaneously, so that engineering plastic ball valve can be connected with different specifications pipeline, has promoted the practicality of engineering plastic ball valve.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to an engineering plastic ball valve with a corrosion-resistant lining. Background Technology

[0002] Engineering plastic ball valves are valve devices used to cut off, connect, or regulate the flow of media in pipelines. They are mainly used in industrial fluid control systems. Their valve bodies are made of corrosion-resistant engineering plastics, and the valve seat sealing rings are mostly made of elastic materials such as polytetrafluoroethylene, which have good sealing and self-lubricating properties.

[0003] In existing technologies, engineering plastic ball valves are equipped with anti-corrosion liners. However, the anti-corrosion liners in traditional engineering plastic ball valves are mostly fixedly installed inside the valve. This installation method makes it inconvenient to disassemble and install the anti-corrosion liners. When the anti-corrosion liners are damaged, it is inconvenient to replace them. At the same time, traditional engineering plastic ball valves can only be connected to pipes of fixed specifications, which reduces the practicality of engineering plastic ball valves. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an engineering plastic ball valve with a corrosion-resistant lining.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an engineering plastic ball valve with an anti-corrosion liner, comprising a valve body and two mounting frames, the two mounting frames being respectively connected to both ends of the valve body, a fixing frame being connected to the outer surface of the valve body, a valve cover being threadedly connected to the outer surface of the fixing frame, a mounting ring being provided at the end of each mounting frame away from the valve body, an anti-corrosion sleeve being fixedly installed on the side wall of the mounting ring near the mounting frame, the outer surface of the anti-corrosion sleeve being fitted with a sealing ring, a connecting pipe being provided on the other side of the mounting ring, a fixing ring being fixedly installed at the end of the connecting pipe near the mounting ring, the outer surface of the connecting pipe being fitted with a fixing sleeve, and a fixing component being provided on the upper surface of the valve cover.

[0006] As a further description of the above technical solution: a limiting block is fixedly installed on the inner wall of the sealing ring, a limiting groove adapted to the limiting block is opened on the outer surface of the anti-corrosion sleeve, a positioning block is fixedly installed on the side wall of the mounting ring near the mounting frame, and a positioning groove for insertion into the positioning block is opened on the side wall of the mounting frame near the mounting ring. By setting the limiting block and the positioning block, the anti-corrosion sleeve and the sealing ring are positioned.

[0007] As a further description of the above technical solution: a positioning rod that penetrates the side wall of the fixed ring is fixedly installed on the side wall of the mounting ring near the fixed ring. The outer surface of the mounting frame is provided with an external thread, and the inner wall of the fixed sleeve is provided with an internal thread that meshes with the external thread. By setting the positioning rod, the fixed ring is positioned.

[0008] As a further description of the above technical solution: a rotating rod is rotatably connected to the upper surface of the valve cover, the rotating rod passes through the upper surface of the valve cover, a handle is fixedly installed at the top end of the rotating rod, a valve ball is fixedly installed at the bottom end of the rotating rod, a sealing sleeve is slidably connected to the inner wall of the valve body, a locking block is fixedly installed on the outer surface of the sealing sleeve, and a locking groove is opened on the inner wall of the valve body. By setting the sealing sleeve, the valve ball and the inner wall of the valve body are sealed.

[0009] As a further description of the above technical solution: both the card block and the card slot are T-shaped, the inner walls of the card block and the card slot are slidably connected, the valve ball is in contact with the inner wall of the sealing sleeve, and the card block and the card slot are provided to position the sealing sleeve.

[0010] As a further description of the above technical solution: the fixing component includes two limiting plates, both of which are fixedly installed on the outer surface of the rotating rod above the valve cover. A sliding plate is sleeved on the outer surface of the rotating rod between the two limiting plates. Insert rods are fixedly installed on the lower surfaces of both ends of the sliding plate. A slider is fixedly installed on the inner wall of the sliding plate. A spring is sleeved on the outer surface of the rotating rod. By setting the fixing component, the rotating rod can be positioned.

[0011] As a further description of the above technical solution: the upper surface of the valve cover is provided with several insertion holes for inserting the insertion rod, the top end of the spring is fixedly connected to the limiting plate above the slide plate, and the bottom end of the spring is fixedly connected to the slide plate. By setting the spring, the position of the insertion rod is limited.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with existing technologies, this engineering plastic ball valve with an anti-corrosion liner, through the cooperation of components such as valve body, mounting frame, fixing frame, valve cover, rotating rod, rotating handle, valve ball, sealing sleeve, locking block, locking groove, mounting ring, anti-corrosion sleeve, sealing ring, limit block, positioning block, connecting pipe, fixing ring, positioning rod, and fixing sleeve, realizes the function of disassembling and assembling the anti-corrosion sleeve. This improves the installation method of the anti-corrosion sleeve in existing technologies, allowing the anti-corrosion sleeve to be disassembled and replaced when damaged. At the same time, the connecting pipes at both ends of the valve body can be replaced, enabling the engineering plastic ball valve to be connected to pipelines of different specifications, thus improving the practicality of the engineering plastic ball valve.

[0014] 2. Compared with existing technologies, this engineering plastic ball valve with anti-corrosion lining achieves the function of positioning the rotary handle by setting up a limit plate, sliding plate, insert rod, slider and spring. By positioning the rotary rod, the spring and insert rod position the sliding plate. When the sliding plate is in a fixed state, the sliding plate restricts the rotary rod through the slider, preventing the rotary rod from continuing to rotate. This restriction of the rotary rod prevents the valve ball from rotating due to accidental rotation of the rotary rod, thus improving the safety of the ball valve. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an engineering plastic ball valve with a corrosion-resistant lining proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the anti-corrosion sleeve structure of an engineering plastic ball valve with an anti-corrosion lining proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the sealing ring structure of an engineering plastic ball valve with a corrosion-resistant lining proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the valve body structure of an engineering plastic ball valve with a corrosion-resistant lining proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the sealing sleeve structure of an engineering plastic ball valve with a corrosion-resistant lining proposed in this utility model.

[0020] Figure 6 This is a schematic diagram of the fixing component structure of an engineering plastic ball valve with an anti-corrosion lining proposed in this utility model.

[0021] Legend:

[0022] 1. Valve body; 2. Mounting frame; 3. Fixing frame; 4. Valve cover; 5. Rotary rod; 6. Rotary handle; 7. Valve ball; 8. Sealing sleeve; 9. Locking block; 10. Locking groove; 11. Mounting ring; 12. Anti-corrosion sleeve; 13. Sealing ring; 14. Limiting block; 15. Positioning block; 16. Connecting pipe; 17. Fixing ring; 18. Positioning rod; 19. Fixing sleeve; 20. Limiting plate; 21. Slide plate; 22. Insert rod; 23. Slider; 24. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1 to 6 This utility model provides an engineering plastic ball valve with an anti-corrosion lining: It includes a valve body 1 and two mounting frames 2, which are respectively connected to both ends of the valve body 1. A fixing frame 3 is connected to the outer surface of the valve body 1, and a valve cover 4 is threadedly connected to the outer surface of the fixing frame 3. Each mounting frame 2 has a mounting ring 11 at its end away from the valve body 1. An anti-corrosion sleeve 12, inserted inside the fixing frame 3, is fixedly installed on the side wall of the mounting ring 11 near the mounting frame 2. A sealing ring 13 is fitted on the outer surface of the anti-corrosion sleeve 12, and a limit block 14 is fixedly installed on the inner wall of the sealing ring 13. An opening is formed on the outer surface of the anti-corrosion sleeve 12 to connect with the limit block. The mounting ring 11 has a 14-phase matching limiting groove. A positioning block 15 is fixedly installed on the side wall of the mounting ring 11 near the mounting frame 2. The side wall of the mounting frame 2 near the mounting ring 11 has a positioning groove for inserting into the positioning block 15. A connecting pipe 16 is provided on the other side of the mounting ring 11. A fixing ring 17 is fixedly installed on one end of the connecting pipe 16 near the mounting ring 11. A positioning rod 18 that penetrates the side wall of the fixing ring 17 is fixedly installed on the side wall of the mounting ring 11 near the fixing ring 17. A fixing sleeve 19 is sleeved on the outer surface of the connecting pipe 16. An external thread is provided on the outer surface of the mounting frame 2. An internal thread that meshes with the external thread is provided on the inner wall of the fixing sleeve 19.

[0025] To improve the sealing between the valve ball 7 and the inner wall of the valve body 1, a rotating rod 5 is rotatably connected to the upper surface of the valve cover 4. The rotating rod 5 passes through the upper surface of the valve cover 4. A handle 6 is fixedly installed at the top of the rotating rod 5, and a valve ball 7 is fixedly installed at the bottom of the rotating rod 5. A sealing sleeve 8 is slidably connected to the inner wall of the valve body 1. A locking block 9 is fixedly installed on the outer surface of the sealing sleeve 8. A locking groove 10 is opened on the inner wall of the valve body 1. Both the locking block 9 and the locking groove 10 are T-shaped. The locking block 9 and the inner wall of the locking groove 10 are slidably connected, and the valve ball 7 is in contact with the inner wall of the sealing sleeve 8.

[0026] By setting up valve body 1, mounting frame 2, fixing frame 3, valve cover 4, rotating rod 5, rotating handle 6, valve ball 7, sealing sleeve 8, locking block 9, locking groove 10, mounting ring 11, anti-corrosion sleeve 12, sealing ring 13, limit block 14, positioning block 15, connecting pipe 16, fixing ring 17, positioning rod 18, and fixing sleeve 19, the function of disassembling and assembling the anti-corrosion sleeve 12 is realized. This improves the installation method of the anti-corrosion sleeve 12 in the existing technology, so that when the anti-corrosion sleeve 12 is damaged, it can be disassembled and replaced. At the same time, the connecting pipes 16 at both ends of the valve body 1 can be replaced, so that the engineering plastic ball valve can be connected to pipelines of different specifications, thus improving the practicality of the engineering plastic ball valve.

[0027] The upper surface of the valve cover 4 is provided with a fixing component, which includes two limiting plates 20. Both limiting plates 20 are fixedly installed on the outer surface of the rotating rod 5 above the valve cover 4. A sliding plate 21 is sleeved on the outer surface of the rotating rod 5 between the two limiting plates 20. Insert rods 22 are fixedly installed on the lower surfaces of both ends of the sliding plate 21. Several insertion holes for inserting the insert rods 22 are opened on the upper surface of the valve cover 4. A slider 23 is fixedly installed on the inner wall of the sliding plate 21. A spring 24 is sleeved on the outer surface of the rotating rod 5. The top end of the spring 24 is fixedly connected to the limiting plate 20 above the sliding plate 21, and the bottom end of the spring 24 is fixedly connected to the sliding plate 21.

[0028] By setting the limit plate 20, slide plate 21, insert rod 22, slider 23 and spring 24, the function of positioning the throttle 6 is realized. The function of positioning the throttle 5 is realized by setting the spring 24 and insert rod 22 to position the slide plate 21. When the slide plate 21 is in a fixed state, the slide plate 21 restricts the throttle 5 through the slider 23, so that the throttle 5 cannot continue to rotate. By restricting the throttle 5, the valve ball 7 is prevented from rotating due to the accidental rotation of the throttle 5, thus improving the safety of the ball valve.

[0029] Working principle: When assembling the engineering plastic ball valve, first align the sealing sleeve 8 with the fixing frame 3, so that the locking block 9 is aligned with the locking groove 10. Move the sealing sleeve 8 so that it slides into the valve body 1 through the fixing frame 3, and the locking block 9 slides inside the locking groove 10. After the sealing sleeve 8 has completely slid into the valve body 1, move the valve cover 4 close to the fixing frame 3 so that the valve ball 7 is aligned with the fixing frame 3. Move the valve cover 4 so that the valve ball 7 slides into the valve body 1 through the fixing frame 3. When the valve cover 4 contacts the fixing frame 3, rotate the valve cover 4 to fix the valve cover 4 to the valve body 1 through the fixing frame 3.

[0030] Next, the sealing ring 13 is fitted onto the outer surface of the anti-corrosion sleeve 12, and the limiting block 14 slides inside the limiting groove. When the sealing ring 13 contacts the mounting ring 11, the anti-corrosion sleeve 12 is moved so that it aligns with the mounting frame 2. The anti-corrosion sleeve 12 is moved so that the anti-corrosion sleeve 12 and the sealing ring 13 slide into the valve body 1 through the mounting frame 2. When the mounting ring 11 contacts the mounting frame 2, the positioning block 15 is inserted into the positioning groove to position the mounting ring 11. Then, the connecting pipe 16 is brought close to the mounting frame 2 so that the hole on the fixing ring 17 is aligned with the positioning rod 18 on the side wall of the mounting ring 11. The connecting pipe 16 is moved so that the fixing ring 17 is in contact with the mounting ring 11, and the positioning rod 18 passes through the hole through the fixing ring 17 to position the fixing ring 17.

[0031] Next, move the fixing sleeve 19 so that it slides on the outer surface of the connecting pipe 16. When the fixing sleeve 19 contacts the mounting frame 2, rotate the fixing sleeve 19. With the cooperation of the internal thread of the fixing sleeve 19 and the external thread of the mounting frame 2, the fixing sleeve 19 connects with the mounting frame 2. At this time, the fixing sleeve 19 presses and fixes the fixing ring 17, completing the assembly of the engineering plastic ball valve. By reversing the above operations, the engineering plastic ball valve can be disassembled. After the engineering plastic ball valve is disassembled, the sealing sleeve 8, the anti-corrosion sleeve 12, the sealing ring 13 and the connecting pipe 16 can be replaced.

[0032] When using the engineering plastic ball valve, connect the inlet pipe and outlet pipe to the two connecting pipes 16 respectively. Hold the handle 6 and the slide plate 21, so that the slide plate 21 slides upward along the rotating rod 5. The spring 24 is compressed and deformed, and the slider 23 slides inside the groove. The insertion rod 22 slides out from the insertion hole, releasing the restriction on the rotating rod 5. Then turn the handle 6. When the handle 6 turns, it drives the rotating rod 5 to rotate, thereby causing the valve ball 7 to rotate. Adjust the water flow by controlling the position of the water passage hole on the valve ball 7. When the water flow reaches the appropriate flow, release the slide plate 21. The spring 24 returns to its original state. Push the slide plate 21 downward, so that the slide plate 21 slides downward. When the insertion rod 22 is reinserted into the insertion hole, it restricts the slide plate 21, thereby fixing the rotating rod 5.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An engineering plastic ball valve with a corrosion-resistant liner, comprising a valve body (1) and two mounting frames (2), characterized in that: Two mounting frames (2) are respectively connected to the two ends of the valve body (1). The outer surface of the valve body (1) is connected to a fixing frame (3). The outer surface of the fixing frame (3) is threaded with a valve cover (4). Each of the two mounting frames (2) is provided with a mounting ring (11) at the end away from the valve body (1). The mounting ring (11) is fixedly installed with an anti-corrosion sleeve (12) inserted inside the fixing frame (3) near the side wall of the mounting frame (2). The outer surface of the anti-corrosion sleeve (12) is fitted with a sealing ring (13). A connecting pipe (16) is provided on the other side of the mounting ring (11). A fixing ring (17) is fixedly installed at the end of the connecting pipe (16) near the mounting ring (11). A fixing sleeve (19) is fitted on the outer surface of the connecting pipe (16). A fixing component is provided on the upper surface of the valve cover (4).

2. The engineering plastic ball valve with an anti-corrosion lining according to claim 1, characterized in that: A limiting block (14) is fixedly installed on the inner wall of the sealing ring (13). A limiting groove adapted to the limiting block (14) is opened on the outer surface of the anti-corrosion sleeve (12). A positioning block (15) is fixedly installed on the side wall of the mounting ring (11) near the mounting frame (2). A positioning groove for insertion into the positioning block (15) is opened on the side wall of the mounting frame (2) near the mounting ring (11).

3. The engineering plastic ball valve with an anti-corrosion lining according to claim 1, characterized in that: The mounting ring (11) is fixedly mounted with a positioning rod (18) that penetrates the side wall of the fixing ring (17) near the side wall of the fixing ring (17). The outer surface of the mounting frame (2) is provided with an external thread, and the inner wall of the fixing sleeve (19) is provided with an internal thread that meshes with the external thread.

4. The engineering plastic ball valve with an anti-corrosion lining according to claim 1, characterized in that: A rotating rod (5) is rotatably connected to the upper surface of the valve cover (4). The rotating rod (5) passes through the upper surface of the valve cover (4). A handle (6) is fixedly installed at the top of the rotating rod (5). A valve ball (7) is fixedly installed at the bottom of the rotating rod (5). A sealing sleeve (8) is slidably connected to the inner wall of the valve body (1). A locking block (9) is fixedly installed on the outer surface of the sealing sleeve (8). A locking groove (10) is opened on the inner wall of the valve body (1).

5. The engineering plastic ball valve with an anti-corrosion lining according to claim 4, characterized in that: The shape of the card block (9) and the card groove (10) is T-shaped. The inner walls of the card block (9) and the card groove (10) are slidably connected, and the valve ball (7) is attached to the inner wall of the sealing sleeve (8).

6. The engineering plastic ball valve with an anti-corrosion lining according to claim 1, characterized in that: The fixing assembly includes two limiting plates (20), both of which are fixedly installed on the outer surface of the rotating rod (5) above the valve cover (4). A sliding plate (21) is sleeved on the outer surface of the rotating rod (5) between the two limiting plates (20). Insert rods (22) are fixedly installed on the lower surfaces of both ends of the sliding plate (21). A slider (23) is fixedly installed on the inner wall of the sliding plate (21). A spring (24) is sleeved on the outer surface of the rotating rod (5).

7. The engineering plastic ball valve with an anti-corrosion lining according to claim 6, characterized in that: The upper surface of the valve cover (4) has several insertion holes for inserting into the insert rod (22). The top end of the spring (24) is fixedly connected to the limiting plate (20) above the slide plate (21), and the bottom end of the spring (24) is fixedly connected to the slide plate (21).

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