High-strength cast iron valve element

Abstract

The utility model discloses a high-strength cast iron valve core, which relates to the technical field of cast iron valve cores, and comprises an upper shell and a lower shell, the inner side surface of the upper shell is fixedly provided with a protective shell, the top end of the upper shell is fixedly provided with a top plate, and a balance mechanism is arranged between a connecting disc and the protective shell; a fixing sleeve is fixedly installed on the bottom face of the lower shell, a filter element is fixedly installed on the inner side face of the top end of the lower shell, and a control mechanism is arranged between the fixing sleeve and the filter element. According to the high-strength cast iron valve element, the pressing disc moves to drive the limiting rod to move, the limiting rod drives the spring to stretch out and draw back, the flowing speed of internal liquid is controlled through stretching out and drawing back of the spring, internal flow is balanced, the pressure of the flow is prevented from being too large, and therefore the overall service life is prolonged; liquid is conveyed through the water inlet formed in the limiting disc, the pressing disc is limited through the limiting disc, and therefore flowing control is facilitated, and the purpose of relieving flow pressure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cast iron valve cores, in particular to a high-strength cast iron valve core. Background Art

[0002] The valve core is the core part of the valve body. The valve core can control the pressure and flow switch of the valve body, thereby effectively controlling the operation of the valve body. Since the valve core is in a humid environment for a long time, stainless steel or plastic and other materials are used to reduce the rate of corrosion.

[0003] However, the valve core will remain open all the time when in use, and the current valve core has a single function, the sealing effect of the valve core is average, and the stability is low.

[0004] In order to solve the above-mentioned defects, in the prior art, a Chinese patent with publication number CN218267320U discloses a double-sealed flat-foot valve core, which is provided with a stabilizing steel part and a connecting block, wherein the stabilizing steel part is embedded between the inner wall and the outer side of the outer shell and fixed by the connecting block, thereby improving the overall structural stability and load-bearing capacity of the outer shell and improving the use effect. By providing a mesh, the mesh is arranged on the bottom of the flat-foot base plate and is installed on the flat-foot base plate together with the third sealing ring, thereby improving the sealing effect of the bottom of the flat-foot base plate and improving the use effect of the valve core.

[0005] During use, the above-mentioned device uses stabilizing steel parts and connecting blocks to fix the outer shell, thereby increasing the overall stability. However, in the above-mentioned device, the stabilizing steel parts and connecting blocks only fix the outer shell and do not control the internal flow, which makes the internal flow prone to pressure imbalance. Therefore, in actual use, the valve core may be damaged due to excessive pressure. Utility Model Content

[0006] The utility model aims to provide a high-strength cast iron valve core to solve the problem of poor flow pressure balance effect inside the valve core in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a high-strength cast iron valve core, including an upper shell and a lower shell, and also including:

[0008] A protective shell is fixedly mounted on the inner side of the upper shell, a top plate is fixedly mounted on the top of the upper shell, a rotating disk is fixedly mounted on the top of the top plate, a connecting disk is fixedly mounted on the top of the rotating disk, and a balancing mechanism is provided between the connecting disk and the protective shell;

[0009] A fixing sleeve is fixedly mounted on the bottom surface of the lower shell, a filter element is fixedly mounted on the inner side surface of the top end of the lower shell, and a control mechanism is arranged between the fixing sleeve and the filter element.

[0010] Furthermore, a connecting shell is fixedly mounted on the bottom surface of the upper shell, a filter hole is opened on the inner side surface of the connecting shell, and a lower shell is fixedly mounted on the bottom surface of the connecting shell, and the upper shell and the connecting shell form an integrated structure.

[0011] Furthermore, a flange is fixedly mounted on the top of the connecting plate, a rotating column is fixedly mounted on the inner side of the flange, and a handle is fixedly mounted on the top of the rotating column.

[0012] Furthermore, a spiral component is fixedly mounted on the outer surface of the rotating column, the control mechanism includes a spiral component, a fixed rod is fixedly mounted on the bottom surface of the spiral component, and a pressure plate is fixedly mounted on the bottom surface of the fixed rod.

[0013] Furthermore, a limiting rod is fixedly installed on the bottom surface of the pressure plate, the balancing mechanism includes a limiting rod, and a spring is movably installed on the outer surface of the limiting rod, a pressure plate is fixedly installed on the top of the spring, and the pressure plate and the spring form a telescopic structure.

[0014] Furthermore, a protective shell is threadedly installed on the outer surface of the spiral component, a limiting disk is fixedly installed on the bottom surface of the protective shell, and a water inlet is opened on the inner side surface of the limiting disk, and the limiting disk and the protective shell form an integrated structure.

[0015] Furthermore, a filter element is fixedly mounted on the bottom surface of the limiting plate, an upper shell is fixedly mounted on the outer surface of the limiting plate, and a pressure plate is movably abutted against the inner side surface of the filter element.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The high-strength cast iron valve core has the following specific contents:

[0018] 1. The limit rod is driven to move by the movement of the pressure plate, and the limit rod drives the spring to expand and contract. The internal liquid flow rate is controlled by the expansion and contraction of the spring, and the internal flow is balanced to prevent the flow pressure from being too high, thereby increasing the overall service life;

[0019] Furthermore, the liquid is transported through the water inlet opened by the limiting disk, and the pressure plate is limited by the limiting disk, thereby facilitating the control of the flow and achieving the purpose of alleviating the flow pressure.

[0020] 2. By manually rotating the handle, the handle drives the rotating column to rotate, the rotating column drives the spiral member to rotate, the spiral member drives the fixed rod to move, the fixed rod drives the pressure plate to move, and the pressure plate moves, so that the water flow is transmitted to the inside of the protective shell through the filter hole opened in the connecting shell, so as to facilitate the control of flow transmission and improve the flow transmission efficiency;

[0021] Furthermore, the rotating column is fixed by a flange, and an internal seal is added to prevent internal water leakage, thereby increasing the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the lower shell of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper shell of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the protective shell of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the spiral member of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the handle of the utility model.

[0028] In the figure: 1. upper shell; 2. lower shell; 3. fixing sleeve; 4. connecting shell; 5. filter hole; 6. top plate; 7. rotating disk; 8. connecting disk; 9. flange; 10. rotating column; 11. handle; 12. screw; 13. fixing rod; 14. pressure plate; 15. limiting rod; 16. filter element; 17. limiting disk; 18. protective shell; 19. water inlet; 20. spring. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1: Please refer to Figure 1-Figure 6 The utility model provides the following technical solution: a high-strength cast iron valve core, including an upper shell 1 and a lower shell 2, and also includes: a protective shell 18 is fixedly installed on the inner side of the upper shell 1, a top plate 6 is fixedly installed on the top of the upper shell 1, a rotating disk 7 is fixedly installed on the top of the top plate 6, a connecting disk 8 is fixedly installed on the top of the rotating disk 7, and a balancing mechanism is arranged between the connecting disk 8 and the protective shell 18; a fixing sleeve 3 is fixedly installed on the bottom surface of the lower shell 2, a filter element 16 is fixedly installed on the inner side surface of the lower shell 2, and a control mechanism is arranged between the fixing sleeve 3 and the filter element 16.

[0031] The flow inside the valve core is balanced by a balancing mechanism arranged between the connecting disk 8 and the protective shell 18, and unnecessary loss of flow is reduced. The flow inside the valve core is controlled by a control mechanism arranged between the fixed sleeve 3 and the filter element 16, so as to facilitate operation by personnel.

[0032] Example 2: Based on Example 1, please refer to Figure 1-Figure 6 , a handle 11 is also disclosed, and its specific structure is as follows: a connecting shell 4 is fixedly installed on the bottom surface of the upper shell 1, a filter hole 5 is opened on the inner side surface of the connecting shell 4, and a lower shell 2 is fixedly installed on the bottom surface of the connecting shell 4, and the upper shell 1 and the connecting shell 4 form an integrated structure, a flange 9 is fixedly installed on the top of the connecting plate 8, a rotating column 10 is fixedly installed on the inner side surface of the flange 9, and a handle 11 is fixedly installed on the top of the rotating column 10, a spiral member 12 is fixedly installed on the outer surface of the rotating column 10, the control mechanism includes a spiral member 12, and a fixing rod 13 is fixedly installed on the bottom surface of the spiral member 12, and a pressure plate 14 is fixedly installed on the bottom surface of the fixing rod 13.

[0033] By manually rotating the handle 11, the handle 11 drives the rotating column 10 to rotate, the rotating column 10 drives the spiral 12 to rotate, the spiral 12 drives the fixed rod 13 to move, the fixed rod 13 drives the pressure plate 14 to move, and the pressure plate 14 moves, so that the water flow is transmitted to the inside of the protective shell 18 through the filter hole 5 opened in the connecting shell 4, so as to facilitate the control of the flow transmission and improve the flow transmission efficiency. The rotating column 10 is fixed by the flange 9, and the internal sealing type is increased to prevent the internal water leakage, thereby increasing the overall stability.

[0034] Example 3: Based on Example 1, please refer to Figure 1-Figure 6 , a spring 20 is also disclosed, and its specific structure is as follows: a limiting rod 15 is fixedly installed on the bottom surface of the pressure plate 14, the balancing mechanism includes the limiting rod 15, and the outer surface of the limiting rod 15 is movably installed with a spring 20, the top of the spring 20 is fixedly installed with the pressure plate 14, and the pressure plate 14 and the spring 20 form a telescopic structure, the outer surface of the spiral member 12 is threadedly installed with a protective shell 18, the bottom surface of the protective shell 18 is fixedly installed with a limiting plate 17, and the inner side surface of the limiting plate 17 is provided with a water inlet 19, the limiting plate 17 and the protective shell 18 form an integrated structure, the bottom surface of the limiting plate 17 is fixedly installed with a filter element 16, and the outer surface of the limiting plate 17 is fixedly installed with an upper shell 1, and the inner side surface of the filter element 16 is movably abutted against the pressure plate 14.

[0035] The movement of the pressure plate 14 drives the limit rod 15 to move, and the limit rod 15 drives the spring 20 to expand and contract. The internal liquid flow rate is controlled by the expansion and contraction of the spring 20, and the internal flow is balanced to prevent the flow pressure from being too large, thereby increasing the overall service life. The liquid is transported through the water inlet 19 opened by the limit plate 17, and the pressure plate 14 is limited by the limit plate 17, thereby facilitating the control of the flow and achieving the purpose of alleviating the flow pressure.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A high-strength cast iron valve core, comprising an upper shell (1) and a lower shell (2), characterized in that: Also includes: A protective shell (18) is fixedly mounted on the inner side surface of the upper shell (1), a top plate (6) is fixedly mounted on the top of the upper shell (1), a rotating disk (7) is fixedly mounted on the top of the top plate (6), a connecting disk (8) is fixedly mounted on the top of the rotating disk (7), and a balancing mechanism is provided between the connecting disk (8) and the protective shell (18); A fixing sleeve (3) is fixedly mounted on the bottom surface of the lower shell (2), a filter element (16) is fixedly mounted on the inner side surface of the top end of the lower shell (2), and a control mechanism is provided between the fixing sleeve (3) and the filter element (16).

2. A high-strength cast iron valve core according to claim 1, characterized in that: A connecting shell (4) is fixedly mounted on the bottom surface of the upper shell (1), a filter hole (5) is provided on the inner side surface of the connecting shell (4), and a lower shell (2) is fixedly mounted on the bottom surface of the connecting shell (4), and the upper shell (1) and the connecting shell (4) form an integrated structure.

3. The high-strength cast iron valve core according to claim 1, characterized in that: A flange (9) is fixedly mounted on the top of the connecting plate (8), a rotating column (10) is fixedly mounted on the inner side of the flange (9), and a handle (11) is fixedly mounted on the top of the rotating column (10).

4. The high-strength cast iron valve core according to claim 3, characterized in that: A screw (12) is fixedly mounted on the outer surface of the rotating column (10), the control mechanism comprises a screw (12), a fixing rod (13) is fixedly mounted on the bottom surface of the screw (12), and a pressure plate (14) is fixedly mounted on the bottom surface of the fixing rod (13).

5. The high-strength cast iron valve core according to claim 4, characterized in that: A limiting rod (15) is fixedly mounted on the bottom surface of the pressure plate (14); the balancing mechanism includes the limiting rod (15); and a spring (20) is movably mounted on the outer surface of the limiting rod (15); a pressure plate (14) is fixedly mounted on the top end of the spring (20); and the pressure plate (14) and the spring (20) form a telescopic structure.

6. The high-strength cast iron valve core according to claim 4, characterized in that: A protective shell (18) is threadedly mounted on the outer surface of the spiral member (12); a limiting plate (17) is fixedly mounted on the bottom surface of the protective shell (18); and a water inlet (19) is provided on the inner side surface of the limiting plate (17); the limiting plate (17) and the protective shell (18) form an integrated structure.

7. The high-strength cast iron valve core according to claim 6, characterized in that: The bottom surface of the limiting plate (17) is fixedly mounted with a filter element (16), the outer surface of the limiting plate (17) is fixedly mounted with an upper shell (1), and the inner side surface of the filter element (16) is movably abutted against a pressure plate (14).

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