Chromium-nickel stainless steel precision casting valve

Abstract

The utility model discloses a chromium-nickel stainless steel precision casting valve, which relates to the technical field of valves and comprises a stainless steel valve pipeline, a control mechanism is arranged at the top of the stainless steel valve pipeline, a protection mechanism is arranged above the control mechanism, and the control mechanism comprises a fixed circular plate. And a threaded rod is installed at the center of the fixed circular plate in a penetrating and threaded mode, a valve shaft is fixedly installed at the top of the threaded rod, a valve rotary knob is fixedly installed on the upper portion of the outer wall of the valve shaft, and the protection mechanism comprises a fixed hollow ring. The fixed hollow ring, the movable hollow bottom ring, the lifting hollow ring and the lifting ring are matched with one another, so that when the valve is opened or closed, the lifting threaded rod can drive the movable hollow bottom ring, the lifting hollow ring and the lifting ring to stretch out and draw back up and down; therefore, a protection mechanism composed of the movable hollow bottom ring, the lifting hollow ring and the lifting ring can protect the threaded rod in real time, and rainwater erosion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a chromium-nickel stainless steel precision casting valve. Background Art

[0002] Stainless steel valve materials are divided into five categories according to metallographic structure: one is Austen stainless steel valves, two is Matan powder stainless steel valves, three is fertilizer stainless steel valves, four is precipitation hardening stainless steel valves, and five is duplex stainless steel valves. Among them, Austen stainless steel valves and 304 stainless steel valves belong to this category. The standard composition of 304 is 18% chromium plus 8% nickel. This type of stainless steel valve contains the alloy element - nickel, which has better corrosion resistance. The existing technology has the following problems:

[0003] Because the existing stainless steel valves are sometimes installed in outdoor pipes when in use, and there may be rainy weather outdoors, the valves are exposed to the outside world and will be washed by rain in rainy weather. The valve body is generally treated with anti-corrosion on the surface, and the odd-numbered threaded rod often moves relative to the valve body thread when in use, and is exposed to the outside world. It is not convenient to do anti-corrosion treatment on the thread. After being washed by rain for a long time, rust will occur, which will make it difficult for the threaded rod to rotate, and even unable to rotate when the rust is serious. Utility Model Content

[0004] The utility model provides a chromium-nickel stainless steel precision casting valve to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A chromium-nickel stainless steel precision casting valve, comprising a stainless steel valve pipeline, a control mechanism is arranged on the top of the stainless steel valve pipeline, a protective mechanism is arranged above the control mechanism, the control mechanism comprises a fixed circular plate, a threaded rod is threadedly installed through the center of the fixed circular plate, a valve shaft is fixedly installed on the top of the threaded rod, a valve knob is fixedly installed on the outer wall of the valve shaft, the protective mechanism comprises a fixed hollow ring, a movable hollow bottom ring is arranged on the inner ring of the fixed hollow ring, a limiting ring 1 is slidably installed in the inner cavity of the movable hollow bottom ring, a lifting hollow ring is fixedly installed on the top of the limiting ring 1, the top of the lifting hollow ring passes through the top of the movable hollow bottom ring, a limiting ring 2 is slidably installed in the inner cavity of the lifting hollow ring, a lifting ring is fixedly installed on the top of the limiting ring 2, the outer wall of the lifting ring passes through the top of the lifting hollow ring, and the top circle center of the lifting ring is fixedly connected to the lower part of the outer wall of the valve shaft.

[0007] A further improvement of the technical solution of the utility model lies in that: a fixed block is fixedly installed in a circular array below the outer wall of the movable hollow bottom ring, and a resistance reduction pulley is movably installed on the end of several of the fixed blocks away from the movable hollow bottom ring, and a limiting circular groove penetrating to the inner ring is opened on the inner wall of the fixed hollow ring close to the movable hollow bottom ring, and several of the fixed blocks penetrate the limiting circular groove to the inner cavity of the fixed hollow ring, and the outer walls of several of the resistance reduction pulleys overlap with the upper and lower sides of the inner wall of the fixed hollow ring.

[0008] A further improvement of the technical solution of the utility model is that a refueling port is provided at the center of the top circle of the valve shaft, a threaded sealing cover is threadedly installed on the outer wall of the refueling port, an oil storage tank is provided inside the threaded rod, the top of the oil storage tank is fixedly connected to the bottom end of the refueling port, and a plurality of oil storage micropores distributed between the upper and lower threads are provided in a circular array on the outer wall of the threaded rod.

[0009] A further improvement of the technical solution of the utility model lies in that: the fixed circular plate is provided with a plurality of mounting threaded holes which penetrate up and down, the inner walls of the plurality of mounting threaded holes are threadedly installed with pentagonal bolts, the top of the fixed circular plate is provided with an oil leakage circular groove, the oil leakage circular groove is located below the inner cavity of the movable hollow bottom ring, the internal annular array of the fixed circular plate is provided with a plurality of oil lowering channels, and the plurality of mounting threaded holes are respectively connected with the inner cavity of the oil leakage circular groove by utilizing the plurality of oil lowering channels.

[0010] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0011] 1. The utility model provides a chromium-nickel stainless steel precision casting valve. Through the mutual cooperation of a fixed hollow ring, a movable hollow bottom ring, a lifting hollow ring, and a lifting ring, when the valve is opened or closed, the lifting threaded rod will drive the movable hollow bottom ring, the lifting hollow ring, and the lifting ring to extend and retract up and down, so that the protective mechanism composed of the movable hollow bottom ring, the lifting hollow ring, and the lifting ring can protect the threaded rod in real time to avoid rain erosion.

[0012] 2. The utility model provides a chromium-nickel stainless steel precision casting valve. Through the mutual cooperation of the oil filling port, threaded rod, oil storage tank, oil storage micropores, oil leakage circular groove and oil lowering channel, the threaded rod in the protective mechanism can also be quickly lubricated. At the same time, the lubricating oil after lubrication can be reused and discharged through the oil lowering channel connected to the oil leakage circular groove, which ensures the smooth rotation of the threaded rod and improves the service life while avoiding the waste of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0014] Figure 2It is a cross-sectional schematic diagram of the protection mechanism of the utility model structure;

[0015] Figure 3 It is a cross-sectional schematic diagram of a threaded rod of the utility model structure;

[0016] Figure 4 It is a cross-sectional schematic diagram of a fixed hollow ring of the structure of the utility model;

[0017] Figure 5 It is a cross-sectional schematic diagram of a fixed circular plate of the utility model structure.

[0018] In the figure: 1. Stainless steel valve pipeline; 2. Control mechanism; 21. Fixed circular plate; 211. Mounting threaded hole; 212. Pentagonal bolt; 213. Oil leakage circular groove; 214. Oil lowering channel; 22. Threaded rod; 221. Oil storage tank; 222. Oil storage micropore; 23. Valve shaft; 231. Oil filling port; 232. Threaded sealing cover; 24. Valve knob; 3. Protection mechanism; 31. Fixed hollow ring; 311. Limit circular groove; 32. Movable hollow bottom ring; 321. Fixed block; 322. Resistance reduction pulley; 33. Lifting hollow ring; 34. Limiting ring one; 35. Lifting ring; 36. Limiting ring two. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1 , Figure 2 , Figure 3As shown, the utility model provides a chromium-nickel stainless steel precision casting valve, including a stainless steel valve pipeline 1, a control mechanism 2 is arranged on the top of the stainless steel valve pipeline 1, a protective mechanism 3 is arranged above the control mechanism 2, the control mechanism 2 includes a fixed circular plate 21, a threaded rod 22 is threadedly installed at the center of the fixed circular plate 21, a valve shaft 23 is fixedly installed on the top of the threaded rod 22, a valve knob 24 is fixedly installed on the outer wall of the valve shaft 23, the protective mechanism 3 includes a fixed hollow ring 31, a movable hollow bottom ring 32 is arranged on the inner ring of the fixed hollow ring 31, a limit ring 34 is slidably installed on the inner cavity of the movable hollow bottom ring 32, a lifting hollow ring 33 is fixedly installed on the top of the limit ring 34, and the top of the lifting hollow ring 33 penetrates to the top of the movable hollow bottom ring 32 The inner cavity of the lifting hollow ring 33 is slidably installed with a limiting ring 2 36, and a lifting ring 35 is fixedly installed on the top of the limiting ring 2 36. The outer wall of the lifting ring 35 penetrates to the top of the lifting hollow ring 33, and the top circle center of the lifting ring 35 is fixedly connected to the lower part of the outer wall of the valve shaft 23. A fixed block 321 is fixedly installed in an annular array below the outer wall of the movable hollow bottom ring 32, and a plurality of fixed blocks 321 are movably installed with a resistance reduction pulley 322 at one end away from the movable hollow bottom ring 32. A limiting circular groove 311 that passes through the inner ring is opened on the side of the inner wall of the fixed hollow ring 31 close to the movable hollow bottom ring 32. A plurality of fixed blocks 321 penetrate the limiting circular groove 311 to the inner cavity of the fixed hollow ring 31, and the outer walls of the plurality of resistance reduction pulleys 322 are overlapped with the upper and lower sides of the inner wall of the fixed hollow ring 31.

[0021] When using chromium-nickel stainless steel precision casting valve, the stainless steel valve pipeline 1 is used to transmit the liquid. When the valve needs to be closed, the valve shaft 23 can be used to drive the threaded rod 22 to rotate by rotating the valve knob 24 to close the valve. During the descent of the valve shaft 23 and the threaded rod 22, the lifting ring 35 is retracted into the lifting hollow ring 33, and the lifting hollow ring 33 is retracted into the movable hollow bottom ring 32 to realize the upward and downward extension of the overall protection mechanism 3, so as to always protect the threaded rod 22 to prevent the threaded rod 22 from being eroded and rusted by outdoor rainwater. When the valve is opened, the threaded rod 22 is reversed and raised by reversing the valve knob 24. The lifting hollow ring 33 in the movable hollow bottom ring 32 is raised until the limit ring 1 34 abuts against the top of the inner cavity of the movable hollow bottom ring 32. The lifting ring 35 can then rise in the inner cavity of the lifting hollow ring 33 and stop when the limit ring 2 36 abuts against the top of the inner cavity of the lifting hollow ring 33. The lifting is completed, and the raised threaded rod 22 is completely protected. When the overall protection mechanism 3 rotates, the resistance reducing pulleys 322 movably installed on several fixed blocks 321 on the outer wall of the movable hollow bottom ring 32 are used to rotate in the inner cavity of the fixed hollow ring 31, so that the movable hollow bottom ring 32, the lifting hollow ring 33, the lifting ring 35 can rotate along with the rotation of the threaded rod 22.

[0022] like Figure 4 As shown, a refueling port 231 is provided at the center of the top of the valve shaft 23, a threaded sealing cap 232 is threadedly installed on the outer wall of the refueling port 231, an oil storage tank 221 is provided inside the threaded rod 22, the top of the oil storage tank 221 is fixedly connected to the bottom of the refueling port 231, and a plurality of oil storage micropores 222 distributed between the upper and lower threads are provided in an annular array on the outer wall of the threaded rod 22;

[0023] When the threaded rod 22 needs to be lubricated, the threaded sealing cover 232 can be opened by rotating, and the lubricating oil can be injected into the oil storage tank 221 opened in the inner cavity of the threaded rod 22 through the refueling port 231, and the lubricating oil can flow out evenly through the multiple oil storage micropores 222 opened on the outer wall of the threaded rod 22 to achieve lubrication.

[0024] like Figure 5 As shown, the fixed circular plate 21 is provided with a plurality of mounting threaded holes 211 which penetrate from top to bottom, the inner walls of the plurality of mounting threaded holes 211 are threadedly installed with pentagonal bolts 212, the top of the fixed circular plate 21 is provided with an oil leakage circular groove 213, the oil leakage circular groove 213 is located below the inner cavity of the movable hollow bottom ring 32, the inner annular array of the fixed circular plate 21 is provided with a plurality of oil lowering channels 214, and the plurality of mounting threaded holes 211 are respectively connected with the inner cavity of the oil leakage circular groove 213 by using the plurality of oil lowering channels 214;

[0025] During lubrication, excess lubricating oil flowing out of the oil storage micropores 222 will flow into the oil leakage groove 213 opened on the top of the fixed circular plate 21, and flow into the inner cavities of the plurality of mounting threaded holes 211 through the plurality of lower oil channels 214, to lubricate the pentagonal bolts 212 threadedly mounted on the inner wall of the mounting threaded holes 211, so as to prevent the pentagonal bolts 212 used for fixing from rusting and avoid wasting lubricating oil. Meanwhile, the remaining lubricating oil will be directly discharged through the mounting threaded holes 211.

[0026] The following is a detailed description of the working principle of the chromium-nickel stainless steel precision casting valve.

[0027] like Figure 1-5As shown, when a chromium-nickel stainless steel precision casting valve is used, a stainless steel valve pipeline 1 is used to transmit liquid. When the valve needs to be closed, the valve shaft 23 can be used to drive the threaded rod 22 to rotate by rotating the valve knob 24 to close the valve. During the descending process of the valve shaft 23 and the threaded rod 22, the lifting ring 35 is retracted into the lifting hollow ring 33, and the lifting hollow ring 33 is retracted into the movable hollow bottom ring 32 to realize the upward and downward extension of the overall protection mechanism 3, thereby always protecting the threaded rod 22 to prevent the threaded rod 22 from being eroded and rusted by outdoor rain. When the valve is opened, the threaded rod 22 is reversed and raised by reversing the valve knob 24, so that the lifting hollow ring 33 in the movable hollow bottom ring 32 rises, until the limit ring 1 34 abuts against the top of the inner cavity of the movable hollow bottom ring 32, the lifting ring 35 can rise in the inner cavity of the lifting hollow ring 33, and until the limit ring 2 36 abuts against the lifting hollow ring 33. When the upper and lower ends of the movable hollow bottom ring 32 are in the upper and lower parts, the lower and upper ends of the movable hollow bottom ring 32 are in the upper and lower parts, respectively.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A chromium-nickel stainless steel precision casting valve, comprising a stainless steel valve pipeline (1), characterized in that: A control mechanism (2) is arranged on the top of the stainless steel valve pipeline (1), and a protective mechanism (3) is arranged above the control mechanism (2). The control mechanism (2) comprises a fixed circular plate (21), a threaded rod (22) is threadedly installed through the center of the fixed circular plate (21), a valve shaft (23) is fixedly installed on the top of the threaded rod (22), and a valve knob (24) is fixedly installed on the outer wall of the valve shaft (23). The protective mechanism (3) comprises a fixed hollow ring (31), and a movable hollow bottom ring (32) is arranged on the inner ring of the fixed hollow ring (31). A limiting ring 1 (34) is slidably mounted on the inner cavity of the movable hollow bottom ring (32); a lifting hollow ring (33) is fixedly mounted on the top of the limiting ring 1 (34); the top of the lifting hollow ring (33) extends to the top of the movable hollow bottom ring (32); a limiting ring 2 (36) is slidably mounted on the inner cavity of the lifting hollow ring (33); a lifting ring (35) is fixedly mounted on the top of the limiting ring 2 (36); the outer wall of the lifting ring (35) extends to the top of the lifting hollow ring (33); the top center of the lifting ring (35) is fixedly connected to the lower part of the outer wall of the valve shaft (23).

2. The chromium-nickel stainless steel precision casting valve according to claim 1, characterized in that: A fixed block (321) is fixedly installed in a circular array below the outer wall of the movable hollow bottom ring (32); a plurality of the fixed blocks (321) are movably installed with a drag reduction pulley (322) at one end away from the movable hollow bottom ring (32); a limiting circular groove (311) penetrating to the inner ring is opened on the inner wall of the fixed hollow ring (31) close to the movable hollow bottom ring (32); a plurality of the fixed blocks (321) penetrate the limiting circular groove (311) to the inner cavity of the fixed hollow ring (31); and the outer walls of the plurality of the drag reduction pulleys (322) are overlapped with the upper and lower sides of the inner wall of the fixed hollow ring (31).

3. The chromium-nickel stainless steel precision casting valve according to claim 1, characterized in that: A refueling port (231) is provided at the center of the top circle of the valve shaft (23); a threaded sealing cover (232) is threadedly installed on the outer wall of the refueling port (231); an oil storage tank (221) is provided inside the threaded rod (22); the top of the oil storage tank (221) is fixedly connected to the bottom end of the refueling port (231); and a plurality of oil storage micropores (222) distributed between the upper and lower threads are provided in an annular array on the outer wall of the threaded rod (22).

4. The chromium-nickel stainless steel precision casting valve according to claim 1, characterized in that: The fixed circular plate (21) is provided with a plurality of mounting threaded holes (211) which penetrate vertically, and the inner walls of the plurality of mounting threaded holes (211) are threadedly mounted with pentagonal bolts (212). The top of the fixed circular plate (21) is provided with an oil leakage circular groove (213), and the oil leakage circular groove (213) is located below the inner cavity of the movable hollow bottom ring (32). The inner annular array of the fixed circular plate (21) is provided with a plurality of oil lowering channels (214), and the plurality of mounting threaded holes (211) are respectively connected with the inner cavity of the oil leakage circular groove (213) by means of the plurality of oil lowering channels (214).

Images