Multi-turn valve opening position heightening structure

Abstract

The utility model discloses a multi-turn valve opening position heightening structure, which belongs to the technical field of valves, and comprises a valve body, the upper surface of the valve body is fixedly connected with a valve cover, the upper surface of the valve cover is provided with a protection assembly, the protection assembly comprises a shell and a limiting ring, the upper surface of the shell is fixedly connected with a protection shell, and the limiting ring is arranged on the upper surface of the protection shell. A moving assembly is arranged in the shell, a transmission assembly is arranged in the protective shell, and the moving assembly comprises a connecting rod, a threaded rod and a valve rod; according to the valve, the rotating handle is arranged to drive the pinion to rotate through the main shaft, the pinion drives the threaded pipe to rotate through the horizontal gear, the rotating threaded pipe drives the threaded rod to move, the threaded rod drives the connecting rod, the valve rod and the valve element to move, opening and closing of the valve body are controlled, and an operator can operate the valve more easily; and meanwhile, long-term maintenance of the valve is facilitated, and the reliability of the whole system is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a multi-rotation valve opening position heightening structure. Background Art

[0002] A multi-turn valve is a design that requires the valve stem to be rotated multiple times to open or close the valve. This type of valve is mainly used to regulate fluid flow and provide precise control. Multi-turn valves are widely used in water treatment, oil and gas industries, chemical plants, and any occasion that requires precise flow control. They are also used in high-pressure applications. The operation of multi-turn valves relies on a spiral or threaded mechanism, usually involving one or more threaded rods and threaded sleeves. The operator needs to rotate the valve stem or handwheel multiple times to gradually move the valve stem through the thread action, thereby opening and closing the valve.

[0003] Traditional valves are installed close to the pipeline and are not easy to access. Valves without a heightened structure are more difficult to maintain and inspect. Additional space may be required around the valve to accommodate maintenance tools and equipment, or special tools may be required to reach the valve, resulting in inconvenience in operation. It is also not conducive to the long-term maintenance of the valve and reduces the reliability of the overall system. Therefore, a multi-turn valve opening position heightened structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-rotation valve opening position heightening structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-turn valve opening position heightening structure, comprising a valve body, a valve cover fixedly connected to the upper surface of the valve body, a protection component arranged on the upper surface of the valve cover, the protection component comprising an outer shell and a limit ring, a protection shell fixedly connected to the upper surface of the outer shell, a moving component arranged inside the outer shell, a transmission component arranged inside the protection shell, the moving component comprising a connecting rod, a threaded rod and a valve stem, the transmission component comprising a threaded tube, a flat gear and a pinion, two bearings fixedly connected outside the threaded tube, the threaded tube is rotatably connected to the inside of the protection shell through the bearings, the pinion is fixedly connected outside the threaded tube, the pinion meshes with the flat gear, a driving component is arranged outside the protection shell, the driving component comprises a main shaft and a rotating handle, the threaded tube is fixedly connected outside the main shaft, the threaded rod is threadedly connected to the inside of the threaded tube, the connecting rod is slidably connected to the inside of the limit ring, a fixed block is fixedly connected to the inside of the outer shell, and a leak-proof filler is filled between the fixed block and the outer shell.

[0006] By providing a rotating handle to drive the pinion to rotate through the main shaft, the pinion drives the threaded tube to rotate through the flat gear, the rotating threaded tube drives the threaded rod to move, the threaded rod drives the connecting rod, the valve stem and the valve core to move, and the opening and closing of the valve body are controlled. The operator can operate the valve more easily, which improves the comfort and safety of operation. At the same time, it is also beneficial to the long-term maintenance of the valve and enhances the reliability of the overall system.

[0007] As a preferred implementation, the shell is fixedly connected to the upper surface of the valve cover, and the limit ring is fixedly connected to the inside of the shell.

[0008] By setting a limiting ring, the moving component is limited to prevent the moving component from rotating as the threaded pipe rotates.

[0009] As a preferred embodiment, the threaded tube extends to the interior of the outer shell, wherein one of the bearings is fixedly connected to the interior of the protective shell, and the other bearing is fixedly connected to the interior of the outer shell.

[0010] By setting the bearing, a connection point is provided for the threaded pipe.

[0011] As a preferred implementation, the rotating handle is rotatably connected to the side of the protective shell, and the main shaft is rotatably connected to the inside of the protective shell.

[0012] The protective shell is provided to protect the transmission component from damage and also serves as a supporting structure for the transmission component.

[0013] As a preferred implementation, the threaded rod is fixedly connected to the upper surface of the connecting rod, the valve stem is fixedly connected to the lower surface of the connecting rod, and the cross-section of the connecting rod in the top view direction is a square.

[0014] By setting a connecting rod, the cross section of the connecting rod in the top view direction is a square, and the moving component is limited by a limiting ring to prevent the moving component from rotating with the rotation of the threaded pipe.

[0015] As a preferred implementation, the threaded rod passes through the fixed block and the valve cover and extends to the interior of the valve body, and the lower surface of the threaded rod is fixedly connected to the valve core.

[0016] By setting the valve core, it is directly related to the fluid control function of the valve and is responsible for realizing the cutoff or release of the fluid.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is provided with a rotating handle which drives a small gear to rotate through a main shaft, and the small gear drives a threaded tube to rotate through a flat gear, and the rotating threaded tube drives a threaded rod to move, and the threaded rod drives a connecting rod, a valve stem and a valve core to move, so as to control the opening and closing of the valve body. The operator can operate the valve more easily, and the comfort and safety of the operation are improved. At the same time, it is also beneficial to the long-term maintenance of the valve and enhances the reliability of the overall system.

[0019] The utility model is provided with a connecting rod, a threaded rod, a valve stem and a limiting ring. The cross section of the connecting rod in a top view direction is a square. The limiting ring is used to limit the moving component to prevent the moving component from rotating with the rotation of the threaded pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of the utility model viewed from above;

[0022] Figure 3 It is a schematic diagram of the sectional structure of the utility model in a front view;

[0023] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure at point B.

[0025] In the figure: 1. valve body; 2. protection assembly; 21. housing; 22. limit ring; 3. drive assembly; 31. main shaft; 32. rotating handle; 4. protection shell; 5. moving assembly; 51. connecting rod; 52. threaded rod; 53. valve stem; 6. transmission assembly; 61. threaded pipe; 62. flat gear; 63. pinion; 7. bearing; 8. valve cover; 9. valve core; 10. leak-proof packing; 11. fixing block. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments.

[0027] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0028] See also Figure 1-5The utility model provides a multi-turn valve opening position heightening structure, including a valve body 1, a valve cover 8 is fixedly connected to the upper surface of the valve body 1, a protection component 2 is arranged on the upper surface of the valve cover 8, the protection component 2 includes a shell 21 and a limit ring 22, a protection shell 4 is fixedly connected to the upper surface of the shell 21, a moving component 5 is arranged inside the shell 21, a transmission component 6 is arranged inside the protection shell 4, the moving component 5 includes a connecting rod 51, a threaded rod 52 and a valve stem 53, the transmission component 6 includes a threaded tube 61, a flat gear 62 and a pinion 63, the threaded tube 61 is fixed outside Two bearings 7 are connected, and the threaded tube 61 is rotatably connected to the inside of the protective shell 4 through the bearings 7. The pinion 63 is fixedly connected to the outside of the threaded tube 61, and the pinion 63 is meshed with the flat gear 62. A driving assembly 3 is arranged outside the protective shell 4, and the driving assembly 3 includes a main shaft 31 and a rotating handle 32. The threaded tube 61 is fixedly connected to the outside of the main shaft 31, the threaded rod 52 is threadedly connected to the inside of the threaded tube 61, and the connecting rod 51 is slidably connected to the inside of the limit ring 22. The inside of the outer shell 21 is fixedly connected to a fixed block 11, and the fixed block 11 and the outer shell 21 are filled with a leak-proof filler 10.

[0029] The housing 21 is fixedly connected to the upper surface of the valve cover 8 , and the limiting ring 22 is fixedly connected to the inside of the housing 21 . By providing the limiting ring 22 , the moving assembly 5 is limited to prevent the moving assembly 5 from rotating with the rotation of the threaded tube 61 .

[0030] The threaded tube 61 extends to the interior of the outer shell 21, wherein one bearing 7 is fixedly connected to the interior of the protective shell 4, and the other bearing 7 is fixedly connected to the interior of the outer shell 21. By setting the bearing 7, a connection point is provided for the threaded tube 61, the rotating handle 32 is rotatably connected to the side of the protective shell 4, and the main shaft 31 is rotatably connected to the interior of the protective shell 4. By setting the protective shell 4, the transmission assembly 6 is protected from damage, and it also serves as a supporting structure for the transmission assembly 6.

[0031] The threaded rod 52 is fixedly connected to the upper surface of the connecting rod 51, and the valve stem 53 is fixedly connected to the lower surface of the connecting rod 51. The cross-section of the connecting rod 51 in the top view is square. By setting the connecting rod 51, the cross-section of the connecting rod 51 in the top view is square. The movable assembly 5 is limited by the limit ring 22 to prevent the movable assembly 5 from rotating with the rotation of the threaded tube 61. The threaded rod 52 passes through the fixed block 11 and the valve cover 8 and extends to the interior of the valve body 1. The lower surface of the threaded rod 52 is fixedly connected with the valve core 9. By setting the valve core 9, it is directly associated with the fluid control function of the valve and is responsible for realizing the cutoff or release of the fluid.

[0032] The working principle and use process of this utility model:

[0033] Valve opening process: the operator rotates the rotating handle 32, the rotating handle 32 drives the small gear 63 to start rotating through the main shaft 31, the small gear 63 drives the threaded tube 61 to rotate through the flat gear 62, the rotating threaded tube 61 causes the threaded rod 52 to move upward, the threaded rod 52 drives the connecting rod 51, the valve stem 53 and the valve core 9 to move upward, thereby opening the valve and allowing the fluid to pass.

[0034] Valve closing process: the operator rotates the rotating handle 32 in the opposite direction, and the rotating handle 32 drives the small gear 63 to start rotating through the main shaft 31. The small gear 63 drives the threaded tube 61 to rotate through the flat gear 62. The rotating threaded tube 61 causes the threaded rod 52 to move downward, and the threaded rod 52 drives the connecting rod 51, the valve stem 53 and the valve core 9 to move downward, thereby closing the valve and preventing the fluid from passing.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-turn valve opening position heightening structure, comprising a valve body (1), characterized in that: The upper surface of the valve body (1) is fixedly connected to a valve cover (8), and the upper surface of the valve cover (8) is provided with a protection component (2), and the protection component (2) includes an outer shell (21) and a limit ring (22). The upper surface of the outer shell (21) is fixedly connected to a protection shell (4), and the inner part of the outer shell (21) is provided with a moving component (5), and the inner part of the protection shell (4) is provided with a transmission component (6), and the moving component (5) includes a connecting rod (51), a threaded rod (52) and a valve stem (53), and the transmission component (6) includes a threaded tube (61), a flat gear (62) and a pinion (63), and the outer part of the threaded tube (61) is fixedly connected to two bearings (7), and the threaded tube (6 1) is rotatably connected to the inside of a protective shell (4) through a bearing (7), the flat gear (62) is fixedly connected to the outside of a threaded tube (61), the pinion (63) is meshed with the flat gear (62), a driving assembly (3) is arranged outside the protective shell (4), the driving assembly (3) comprises a main shaft (31) and a rotating handle (32), the pinion (63) is fixedly connected to the outside of the main shaft (31), the threaded rod (52) is threadedly connected to the inside of the threaded tube (61), the connecting rod (51) is slidably connected to the inside of a limiting ring (22), a fixing block (11) is fixedly connected to the inside of the shell (21), and a leak-proof filler (10) is filled between the fixing block (11) and the shell (21).

2. A multi-rotation valve opening position heightening structure according to claim 1, characterized in that: The outer shell (21) is fixedly connected to the upper surface of the valve cover (8), and the limiting ring (22) is fixedly connected to the inside of the outer shell (21).

3. A multi-rotation valve opening position heightening structure according to claim 2, characterized in that: The threaded tube (61) extends to the interior of the outer shell (21), wherein one of the bearings (7) is fixedly connected to the interior of the protective shell (4), and the other bearing (7) is fixedly connected to the interior of the outer shell (21).

4. The multi-rotation valve opening position heightening structure according to claim 1, characterized in that: The rotating handle (32) is rotatably connected to the side of the protective shell (4), and the main shaft (31) is rotatably connected to the inside of the protective shell (4).

5. The multi-rotation valve opening position heightening structure according to claim 1, characterized in that: The threaded rod (52) is fixedly connected to the upper surface of the connecting rod (51), the valve rod (53) is fixedly connected to the lower surface of the connecting rod (51), and the cross-section of the connecting rod (51) in the top view is a square.

6. The multi-rotation valve opening position heightening structure according to claim 5, characterized in that: The threaded rod (52) passes through the fixed block (11) and the valve cover (8) and extends to the interior of the valve body (1); the lower surface of the threaded rod (52) is fixedly connected to the valve core (9).

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