Polish rod ball valve convenient to disassemble and maintain

Abstract

The polish rod ball valve convenient to disassemble and maintain comprises a valve body, a valve groove is formed in the top of the valve body, a valve insertion block is movably connected into the valve groove in a clamped mode, a valve deck is fixedly connected to the top of the valve insertion block, a sealing ring is fixedly connected to the outer side wall of the valve insertion block in a sleeved mode, and assembling supporting strips are fixedly connected to the two sides of the outer side wall of the valve deck. A plurality of assembling insertion holes are formed in the side wall of the assembling supporting strip. According to the utility model, by pulling the positioning pull block, the positioning pull block drives the positioning insertion strip and the positioning spring to move along the direction of the fixed valve rod, and the positioning insertion strip is separated from one of the positioning insertion holes, and the fixed support rod is pulled at the same time; and the fixing supporting rod on the fixing ball plug is separated from the fixing inserting opening in the fixing valve rod through the fixing inserting block, so that the use effect is improved after parts are disassembled and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a smooth-stem ball valve which is easy to disassemble and maintain. Background Art

[0002] A bare stem valve is a device that is manually operated or electrically driven and is used to control the flow of fluid (liquid, gas, steam, etc.) in a pipeline or to cut off the pipeline. It consists of a valve body, a valve seat, a valve stem, a valve disc and a drive device, among which the valve stem and the valve disc constitute the "bare stem" part, hence the name "bare stem valve". However, during the use of some existing ball valves, their internal parts are easily worn, resulting in the need for maintenance, but the maintenance and disassembly of the ball valve is relatively troublesome and requires a lot of time, thereby reducing the use effect. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and provides a smooth-stem ball valve which is easy to disassemble and maintain.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a smooth-stem ball valve that is easy to disassemble and maintain, comprising a valve body, a valve slot is provided on the top of the valve body, a valve plug block is movably connected inside the valve slot, a valve cover is fixedly connected to the top of the valve plug block, a sealing ring is fixedly sleeved on the outer wall of the valve plug block, both sides of the outer wall of the valve cover are fixedly connected to assembly support strips, the side walls of the assembly support strip are provided with a plurality of assembly insertion holes, and both sides of the outer wall of the valve body are connected to assembly components;

[0005] A fixed valve stem passes through the top of the valve cover and is rotatably connected, a valve handle is fixedly sleeved on the outer side wall of the fixed valve stem, a fixed socket is provided at one end of the fixed valve stem, a fixed plug is movably clamped inside the fixed socket, a plurality of positioning holes are provided on the side wall of the fixed plug, a fixed support rod is fixedly connected to the bottom of the fixed plug, a fixed ball plug is fixedly sleeved on the outer side wall of the fixed support rod, and a positioning assembly is connected to the side wall of the fixed valve stem.

[0006] As a further description of the above technical solution:

[0007] The assembly component comprises an assembly recessed block fixedly connected to the outer side wall of the valve body, an assembly rotating shaft is rotatably connected between the two sides of the inner wall of the assembly recessed block, and an assembly round plate is fixedly sleeved on the outer side wall of the assembly rotating shaft.

[0008] As a further description of the above technical solution:

[0009] The inside of the assembly circular plate is movably connected with the corresponding assembly support bar, and the side wall of the assembly circular plate is provided with two moving grooves, and the inside of the moving groove is slidably connected with a moving slider, and the bottom of the moving slider is fixedly connected to the bottom of the moving groove through a moving spring.

[0010] As a further description of the above technical solution:

[0011] A moving pull plate is fixedly connected between the two moving slide blocks, a moving insert strip is fixedly connected to the bottom of the moving pull plate, and the end of the moving insert strip is movably plugged into one of the assembly sockets.

[0012] As a further description of the above technical solution:

[0013] The positioning assembly comprises a positioning insert that penetrates through the side wall of the fixed valve stem, one end of the positioning insert is fixedly connected to a positioning pull block, and the other end of the positioning insert is movably plugged into one of the positioning plug holes.

[0014] As a further description of the above technical solution:

[0015] The outer side wall of the positioning insert is movably sleeved with a positioning spring, and two ends of the positioning spring are respectively fixedly connected to the side wall of the positioning pull block and the side wall of the fixed valve stem.

[0016] As a further description of the above technical solution:

[0017] The liquid inlet and the liquid outlet of the valve body are both fixedly connected with a valve branch pipe, and the outer side wall of the valve branch pipe is fixedly sleeved with a valve disk.

[0018] The utility model has the following beneficial effects:

[0019] The assembly component can be used to make the assembly concave block, the assembly shaft, the assembly backplate, the moving slider, the moving spring, the moving pull plate and the moving insert strip cooperate, so that by pulling the moving pull plate, the moving pull plate drives the moving insert strip to separate from one of the assembly sockets, then the moving slider and the moving spring on the moving pull plate slide inside the moving groove, and then the assembly backplate is bent and flipped to separate the inside of the assembly backplate from the assembly support strip, followed by pulling the valve cover to drive the fixed ball plug to separate from the valve slot, and the positioning component can be used to make the positioning insert strip, the positioning pull block and the positioning spring cooperate, so that by pulling the positioning pull block, the positioning pull block drives the positioning insert strip and the positioning spring to move along the direction on the fixed valve stem, followed by the positioning insert strip being separated from one of the positioning sockets, and at the same time pulling the fixed support rod, so that the fixed support rod on the fixed ball plug is separated from the fixed socket on the fixed valve stem through the fixed plug block, so that the parts can be repaired after disassembly, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the overall structure of a smooth-stem ball valve that is easy to disassemble and maintain, as proposed by the utility model;

[0021] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 A schematic diagram of the internal structure of a valve body of a polished stem ball valve that is easy to disassemble and maintain, proposed by the utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B.

[0024] Legend:

[0025] 1. Valve body; 2. Valve branch pipe; 3. Valve disc; 4. Valve cover; 5. Valve plug; 6. Sealing ring; 7. Assembly support strip; 8. Assembly recess block; 9. Assembly shaft; 10. Assembly return plate; 11. Moving slider; 12. Moving spring; 13. Moving pull plate; 14. Moving plug strip; 15. Fixed valve stem; 16. Valve handle; 17. Fixed plug block; 18. Fixed support rod; 19. Fixed ball plug; 20. Positioning plug strip; 21. Positioning pull block; 22. Positioning spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-4 The utility model provides a smooth-stem ball valve that is easy to disassemble and maintain, including a valve body 1, a valve branch pipe 2 is fixedly connected to the liquid inlet and the liquid outlet of the valve body 1, a valve disc 3 is fixedly sleeved on the outer wall of the valve branch pipe 2, a valve slot is provided on the top of the valve body 1, a valve plug block 5 is movably connected inside the valve slot, a valve cover 4 is fixedly connected to the top of the valve plug block 5, a sealing ring 6 is fixedly sleeved on the outer wall of the valve plug block 5, both sides of the outer wall of the valve cover 4 are fixedly connected to assembly support strips 7, a plurality of assembly insertion holes are provided on the side walls of the assembly support strips 7, and both sides of the outer wall of the valve body 1 are connected to assembly components;

[0028] Reference Figure 1 and Figure 2The assembly component includes an assembly concave block 8 fixedly connected to the outer wall of the valve body 1, an assembly shaft 9 is rotatably connected between the two sides of the inner wall of the assembly concave block 8, an assembly round-shaped plate 10 is fixedly sleeved on the outer wall of the assembly shaft 9, and the assembly support bar 7 corresponding to the assembly round-shaped plate 10 is movably engaged with the assembly support bar 7 inside the assembly round-shaped plate 10, and two moving grooves are provided on the side wall of the assembly round-shaped plate 10, and a moving slider 11 is slidably connected inside the moving groove, and the bottom of the moving slider 11 is fixedly connected to the bottom of the moving groove through a moving spring 12, and a moving pull plate 13 is fixedly connected between the two moving sliders 11, and a moving insert 14 is fixedly connected to the bottom of the moving pull plate 13, and the end of the moving insert 14 is movably connected to one of the assembly sockets The movable plug-in is made by movably plugging the movable plug-in strip 14 with one of the assembly plug-in holes, thereby limiting the valve cover 4; the movable pull plate 13 is pulled, so that the movable pull plate 13 drives the movable plug-in strip 14 to separate from one of the assembly plug-in holes, and then the movable slider 11 and the movable spring 12 on the movable pull plate 13 slide inside the movable groove, and then the assembly circular plate 10 is bent and turned over, so that the inside of the assembly circular plate 10 is separated from the assembly support strip 7, and then the valve cover 4 is pulled, so that the valve cover 4 drives the valve plug 5 to separate from the valve slot on the valve body 1, and then the valve cover 4 also drives the fixed valve stem 15 and the fixed ball plug 19 on the fixed support rod 18 to separate from the valve slot, thereby ensuring the disassembly effect.

[0029] A fixed valve stem 15 is passed through the top of the valve cover 4 and is rotatably connected. A valve handle 16 is fixedly sleeved on the outer wall of the fixed valve stem 15. A fixed socket is provided at one end of the fixed valve stem 15. A fixed plug 17 is movably connected inside the fixed socket. A plurality of positioning holes are provided on the side wall of the fixed plug 17. A fixed support rod 18 is fixedly connected to the bottom of the fixed plug 17. A fixed ball plug 19 is fixedly sleeved on the outer wall of the fixed support rod 18. A positioning assembly is connected to the side wall of the fixed valve stem 15.

[0030] Reference Figure 3 and Figure 4 The positioning assembly includes a positioning strip 20 that penetrates the side wall of the fixed valve stem 15, one end of the positioning strip 20 is fixedly connected to a positioning pull block 21, the other end of the positioning strip 20 is movably plugged into one of the positioning sockets, and a positioning spring 22 is movably sleeved on the outer wall of the positioning strip 20. The two ends of the positioning spring 22 are respectively fixedly connected to the side wall of the positioning pull block 21 and the side wall of the fixed valve stem 15. The positioning strip 20 is movably plugged into one of the positioning sockets, thereby limiting the fixed plug 17.

[0031] Working principle: When in use, first pull the moving pull plate 13 so that the moving pull plate 13 drives the moving plug 14 to separate from one of the assembly sockets, then the moving slider 11 and the moving spring 12 on the moving pull plate 13 slide inside the moving groove, and then bend and flip the assembly circular plate 10 so that the inside of the assembly circular plate 10 is separated from the assembly support bar 7, followed by pulling the valve cover 4 so that the valve cover 4 drives the valve plug 5 to separate from the valve slot on the valve body 1, and then the valve cover 4 also drives the fixed valve stem 15 and the fixed ball plug 19 on the fixed support rod 18 to separate from the valve slot to ensure the disassembly effect.

[0032] Then pull the positioning block 21, and drive the positioning strip 20 and the positioning spring 22 to move along the direction on the fixed valve stem 15 through the positioning block 21, followed by the positioning strip 20 being separated from one of the positioning sockets, and at the same time pull the fixed support rod 18, so that the fixed support rod 18 on the fixed ball plug 19 is separated from the fixed socket on the fixed valve stem 15 through the fixed block 17, thereby ensuring further disassembly effect.

[0033] During installation, first pick up the new fixed ball plug 19, then insert the fixed plug 17 on the fixed support rod 18 on the fixed ball plug 19 into the fixed socket on the fixed valve stem 15, and then loosen the positioning pull block 21, so that the positioning spring 22 gives the positioning plug 20 a restoring force, so that the positioning plug 20 is plugged into a positioning socket on the fixed plug block 17, and then pick up the assembled valve cover 4, and then embed the fixed support rod 18 and the fixed ball plug 19 on the valve cover 4 into the valve groove, and then the valve cover 4 is also engaged with the valve groove, and at the same time, bend and flip the assembly backplate 10, so that the inside of the assembly backplate 10 is engaged with the assembly support strip 7, and then loosen the movable pull plate 13, and at the same time, the movable spring 12 gives the movable pull plate 13 on the movable slider 11 a restoring force, so that the movable pull plate 13 drives the movable plug 14 to be plugged into a limited position with an assembly socket on the assembly support strip 7, to ensure the installation effect after disassembly.

[0034] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polished ball valve that is easy to disassemble and maintain, comprising a valve body (1), characterized in that: The valve body (1) has a valve slot at the top, a valve plug block (5) is movably connected inside the valve slot, a valve cover (4) is fixedly connected to the top of the valve plug block (5), a sealing ring (6) is fixedly sleeved on the outer wall of the valve plug block (5), both sides of the outer wall of the valve cover (4) are fixedly connected with assembly supports (7), the side walls of the assembly supports (7) are provided with a plurality of assembly insertion holes, and both sides of the outer wall of the valve body (1) are connected with assembly components; A fixed valve stem (15) is passed through the top of the valve cover (4) and is rotatably connected thereto; a valve handle (16) is fixedly sleeved on the outer wall of the fixed valve stem (15); a fixed socket is provided at one end of the fixed valve stem (15); a fixed plug (17) is movably engaged inside the fixed socket; a plurality of positioning holes are provided on the side wall of the fixed plug (17); a fixed support rod (18) is fixedly connected to the bottom of the fixed plug (17); a fixed ball plug (19) is fixedly sleeved on the outer wall of the fixed support rod (18); and a positioning assembly is connected to the side wall of the fixed valve stem (15).

2. A polished ball valve that is easy to disassemble and maintain according to claim 1, characterized in that: The assembly component comprises an assembly recess (8) fixedly connected to the outer wall of the valve body (1), an assembly shaft (9) rotatably connected between the two sides of the inner wall of the assembly recess (8), and an assembly round plate (10) fixedly sleeved on the outer wall of the assembly shaft (9).

3. The smooth stem ball valve that is easy to disassemble and maintain according to claim 2 is characterized in that: The assembly round-shaped plate (10) is movably connected with the corresponding assembly support bar (7) inside, and the side wall of the assembly round-shaped plate (10) is provided with two movable grooves, and the movable slide block (11) is slidably connected inside the movable groove, and the bottom of the movable slide block (11) is fixedly connected to the bottom of the movable groove through a movable spring (12).

4. A polished stem ball valve that is easy to disassemble and maintain according to claim 3, characterized in that: A movable pull plate (13) is fixedly connected between the two movable slide blocks (11), a movable insertion strip (14) is fixedly connected to the bottom of the movable pull plate (13), and the end of the movable insertion strip (14) is movably plugged into one of the assembly sockets.

5. The smooth stem ball valve that is easy to disassemble and maintain according to claim 1 is characterized in that: The positioning assembly comprises a positioning insert (20) penetrating the side wall of the fixed valve stem (15), one end of the positioning insert (20) is fixedly connected to a positioning pull block (21), and the other end of the positioning insert (20) is movably plugged into one of the positioning plug holes.

6. The smooth stem ball valve that is easy to disassemble and maintain according to claim 5, characterized in that: A positioning spring (22) is movably sleeved on the outer side wall of the positioning insert (20), and two ends of the positioning spring (22) are respectively fixedly connected to the side wall of the positioning pull block (21) and the side wall of the fixed valve stem (15).

7. The smooth stem ball valve that is easy to disassemble and maintain according to claim 1 is characterized in that: The liquid inlet and the liquid outlet of the valve body (1) are both fixedly connected to a valve branch pipe (2), and the outer side wall of the valve branch pipe (2) is fixedly sleeved with a valve disc (3).

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