Multifunctional self-closing valve
By designing a multi-functional self-closing valve that relies on buoyancy, the problem of difficulty in reflowing cooling water under bumpy conditions is solved, and the smooth reflow of cooling water and the durability of self-closing valve are improved.
Patent Information
- Application Number
- CN202420984350.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The prior art is difficult to achieve smooth return of cooling water to the cooling water tank under normal pressure under sea bumping conditions.
A multifunctional self-closing valve is designed, and its opening and closing relies entirely on buoyancy, including the valve body mechanism and the float mechanism. The float mechanism floats up and down with the change of liquid water level. When the upper part of the float mechanism resists the sealing ring, it closes the oral cavity, restricts the flow of liquid from the bottom to the upward, and achieves a smooth return of cooling water.
It realizes the smooth return of cooling water to the cooling water tank under normal pressure in complex marine environments, improving the practicality and durability of the self-closing valve.
Smart Images
Figure CN222479542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve bodies, in particular to a multifunctional self-closing valve. Background Art
[0002] A valve is a common pipeline accessory used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Valves can be used to control the flow of various types of fluids, including but not limited to air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. The working principle of the valve is mainly based on fluid mechanics and mechanical principles, including two processes: opening and closing. During the opening process, the operating rod acts on the valve core through mechanical transmission to separate the valve core from the valve seat, thereby opening the channel; during the closing process, the operating rod also uses mechanical transmission to make the valve core contact with the valve seat to form a seal and prevent the fluid from passing through. Valves occupy an important position in fluid control systems, with a wide variety of varieties and specifications, suitable for various industrial and commercial applications.
[0003] An important component of the valve - the self-closing valve, also known as the quick-closing valve, is an automatic control valve commonly used in fluid pipelines. It can automatically cut off or open the water flow according to the change of water flow pressure, thereby controlling the water level and water flow. The working principle of the self-closing valve is based on the principle of pressure difference. When the valve is in the closed state, the pressure difference inside and outside the valve will keep it closed; when the pressure difference disappears, the valve will automatically open. Its main components include the valve core and the valve seat. By adjusting the position of the valve core, the degree of opening of the valve can be controlled to achieve fluid control.
[0004] The cooling water tank on board is an important part of the ship's main engine cooling system. It mainly plays the role of storing cooling water to ensure sufficient cooling water. When the ship's main engine is started, the water pump starts working and draws seawater from the water inlet into the cooling system. The seawater enters the main engine cooler after being filtered by the filter, and exchanges heat with the high-temperature cooling water to cool the high-temperature cooling water. The cooled water flows back to the cooling water tank along the pipeline for recycling, and the cooled seawater is discharged from the water outlet to avoid pollution to the environment. In order to avoid the cooling water in the cooling water tank from flowing back, a one-way valve is usually required on the cooling water tank. However, the existing one-way valve usually uses a spring or a counterweight for one-way control, resulting in only cooling water with a large pressure to flow back to the cooling water tank smoothly. Otherwise, the cooling water in the cooling water tank will inevitably flow back. Therefore, how to achieve the smooth return of cooling water to the cooling water tank under normal pressure under the turbulent conditions at sea has become a problem that technicians in this field need to solve urgently. Utility Model Content
[0005] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a multifunctional self-closing valve. The opening and closing of the self-closing valve of the utility model completely rely on buoyancy, can better adapt to the complex working environment at sea, and realize the smooth return of cooling water to the cooling water tank under normal pressure. It is not only highly practical, but also more durable and has great market value.
[0006] The utility model is realized through the following technical solutions:
[0007] A multifunctional self-closing valve comprises a valve body mechanism and a float mechanism. The valve body mechanism comprises a valve body main body. The upper end of the valve body main body is fixedly connected with a flange connection part. The valve body main body is a cylindrical structure. A hollow cavity penetrating from top to bottom is arranged in the middle of the valve body main body. The hollow cavity comprises a float cavity and a connecting cavity which are connected through each other. A contraction cavity body with a contraction structure is arranged between the float cavity and the connecting cavity. The central axes of the float cavity, the contraction cavity body and the connecting cavity coincide. A first sealing ring is arranged around the lower end of the contraction cavity body. The float mechanism is a hollow spherical structure. The float mechanism is arranged in the float cavity. The float mechanism floats up and down along the float cavity as the water level of the liquid changes. When the upper part of the float mechanism abuts against the first sealing ring, the float mechanism closes the contraction cavity body to restrict the liquid from flowing from bottom to top.
[0008] It can be seen that in the above technical scheme, the valve body of the utility model is vertically fixed in the cooling water tank by the flange connection part, and the upper end of the self-closing valve is externally connected to the cooling water pipeline. Under normal working conditions, the cooling water flows into the cooling water tank along the cooling water pipeline and the self-closing valve. When in the bumpy working condition at sea, the float mechanism floats up and down along the float cavity with the change of the liquid water level. When the upper part of the float mechanism is against the first sealing ring, the float mechanism closes the contraction cavity body, restricts the liquid from flowing from bottom to top, and thus realizes the smooth return of the cooling water to the cooling water tank under normal pressure; the opening and closing of the self-closing valve of the utility model completely relies on buoyancy, so it can better adapt to the complex working environment at sea, and it is not only practical, but also more durable.
[0009] According to the above technical solution, preferably, the inner wall of the float cavity is provided with a plurality of groups of inner ribs with strip structures, the inner ribs are fixedly connected to the inner wall of the float cavity, the inner ribs are inserted into the float cavity, the extension lines of the inner ribs are parallel to the central axis of the float cavity, and the through flow channel between the float mechanism and two adjacent groups of inner ribs is used for liquid to flow from top to bottom.
[0010] It can be seen that in the above technical solution, under normal circumstances, the float mechanism floats up and down along the float cavity as the liquid water level changes. At this time, the through flow channel between the float mechanism and the two sets of adjacent inner ribs is used for the liquid to flow from top to bottom, so that the cooling water can flow smoothly and efficiently back to the cooling water tank under normal pressure.
[0011] According to the above technical solution, preferably, multiple groups of inner ribs are arranged at equal angles on the inner wall of the float cavity.
[0012] According to the above technical solution, preferably, the valve body, the flange connection part and the multiple groups of internal ribs are integrally cast and formed.
[0013] It can be seen that in the above technical solution, the valve body, the flange connection part and the inner ribs have high processing efficiency and high strength.
[0014] According to the above technical solution, preferably, the float mechanism includes a float body with a spherical structure and a second sealing ring, an annular groove is opened on the upper part of the float body, the second sealing ring is adapted to the annular groove, the annular groove coincides with the vertical projection of the first sealing ring, the second sealing ring is inserted into the annular groove, and when the upper part of the float mechanism is against the first sealing ring, the second sealing ring is in contact with the first sealing ring.
[0015] It can be seen that in the above technical solution, the first sealing ring and the second sealing ring are both made of rubber. When the upper part of the float mechanism abuts against the first sealing ring, the second sealing ring abuts against the first sealing ring, thereby enhancing the sealing effect of the self-closing valve.
[0016] According to the above technical solution, preferably, the float body is an elliptical structure, the long axis of the float body is vertically arranged, a strip slide groove matching the inner rib is provided around the float body, the inner part of the inner rib is slidably connected to the strip slide groove, and the float mechanism slides up and down in the float cavity.
[0017] It can be seen that in the above technical solution, the float body is an elliptical structure, which makes the float body have greater buoyancy, and the inner part of the inner rib is slidably connected with the strip slide groove, which can make the float body slide up and down smoothly in the float cavity.
[0018] According to the above technical solution, preferably, it also includes a guiding mechanism, which includes a guiding seat and a sliding rod. The guide seat is fixedly arranged on the upper part of the shrinking cavity body through a hollow frame. The sliding rod is slidably connected to the guide seat. The sliding rod is fixedly connected to the float mechanism, and the central axis of the sliding rod coincides with the central axis of the hollow cavity.
[0019] It can be seen that in the above technical solution, the float body is an elliptical structure, the slide rod is slidably connected to the guide seat, the slide rod is fixedly connected to the float mechanism, and the central axis of the slide rod coincides with the central axis of the hollow cavity, thereby enabling the float body to slide up and down smoothly in the float cavity and preventing the float body from getting stuck in the float cavity.
[0020] According to the above technical solution, preferably, the valve body mechanism further includes a ventilation grille and an annular pressing cap, and the ventilation grille is locked at the lower end of the valve body through the annular pressing cap.
[0021] It can be seen that in the above technical solution, it is convenient for the staff to first install the float mechanism in the float cavity, and then install the air grille and the annular pressure cap in sequence, and the air grille is locked at the lower end of the valve body through the annular pressure cap.
[0022] According to the above technical solution, preferably, the middle part of the air-permeable grille is a hollow structure with a divergent structure.
[0023] According to the above technical solution, preferably, a plurality of groups of reserved through holes matching the locking bolts are arranged at equal angles on the flange connection portion.
[0024] The beneficial effects of the utility model are:
[0025] (1) The valve body of the utility model is vertically fixed in the cooling water tank through the flange connection part, and the upper end of the self-closing valve is externally connected to the cooling water pipeline. Under normal working conditions, the cooling water flows into the cooling water tank along the cooling water pipeline and the self-closing valve. When the vehicle is in a turbulent condition at sea, the float mechanism floats up and down along the float cavity with the change of the liquid water level. When the upper part of the float mechanism abuts against the first sealing ring, the float mechanism closes the contraction cavity, restricting the liquid from flowing from bottom to top, thereby realizing the smooth reflux of the cooling water to the cooling water tank under normal pressure;
[0026] (2) The opening and closing of the self-closing valve of the utility model completely depends on buoyancy, so it can better adapt to the complex working environment at sea. It is not only practical but also more durable. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 The main structural diagram of the utility model is shown;
[0028] Figure 2 A schematic diagram of the top view of the structure of the utility model is shown;
[0029] Figure 3 The cross-sectional structure diagram of the embodiment 1 of the utility model is shown, and the self-closing valve is in an open state at this time;
[0030] Figure 4 The cross-sectional structure diagram of the embodiment 1 of the utility model is shown, and the self-closing valve is in a closed state at this time;
[0031] Figure 5 The cross-sectional structure diagram of the embodiment 2 of the utility model is shown, and the self-closing valve is in an open state at this time;
[0032] Figure 6 The cross-sectional structure diagram of the embodiment 2 of the utility model is shown, and the self-closing valve is in a closed state at this time;
[0033] Figure 7 The figure shows a front view of the structure of the float mechanism in the second embodiment of the present utility model;
[0034] Description of reference numerals:
[0035] 1. Valve body mechanism; 2. Float mechanism; 3. Valve body; 4. Flange connection; 5. Hollow cavity; 6. Float cavity; 7. Connection cavity; 8. Shrink cavity; 9. First sealing ring; 10. Inner ribs; 11. Air grille; 12. Annular pressure cap; 13. Reserved through hole; 14. Second sealing ring; 15. Guide mechanism; 16. Guide seat; 17. Slide rod; 18. Float body. DETAILED DESCRIPTION
[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.
[0037] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.
[0038] Example 1
[0039] As shown in the figure, the utility model provides a multifunctional self-closing valve, including a valve body mechanism 1 and a float mechanism 2. The valve body mechanism 1 includes a valve body 3. The upper end of the valve body 3 is fixedly connected with a flange connection part 4. The valve body 3 is a cylindrical structure. The middle part of the valve body 3 is provided with a hollow cavity 5 that passes through from top to bottom. The hollow cavity 5 includes a float cavity 6 and a connecting cavity 7 that are connected through each other. A shrinking cavity 8 of a shrinking structure is provided between the float cavity 6 and the connecting cavity 7. The central axes of the float cavity 6, the shrinking cavity 8 and the connecting cavity 7 coincide. A first sealing ring 9 is provided around the lower end of the shrinking cavity 8. The float mechanism 2 is a hollow type. Spherical structure, the float mechanism 2 is arranged in the float cavity 6, and the float mechanism 2 floats up and down along the float cavity 6 as the liquid water level changes. When the upper part of the float mechanism 2 is against the first sealing ring 9, the float mechanism 2 closes the contraction cavity 8, thereby restricting the liquid from flowing from bottom to top. The inner wall of the float cavity 6 is provided with a plurality of groups of inner ribs 10 of strip structure arranged at equal angles. The inner ribs 10 are fixedly connected to the inner wall of the float cavity 6. The inner ribs 10 are inserted into the float cavity 6. The extension line of the inner ribs 10 is parallel to the central axis of the float cavity 6. The through flow channel between the float mechanism 2 and two adjacent groups of inner ribs 10 is used for the liquid to flow from top to bottom.
[0040] The valve body 3 of the utility model is vertically fixed in the cooling water tank by the flange connection part 4, and the upper end of the self-closing valve is externally connected to the cooling water pipeline. Under normal working conditions, the cooling water flows into the cooling water tank along the cooling water pipeline and the self-closing valve. When it is in a bumpy working condition at sea, the float mechanism 2 floats up and down along the float cavity 6 with the change of the liquid water level. When the upper part of the float mechanism 2 is against the first sealing ring 9, the float mechanism 2 closes the contraction cavity 8, restricts the liquid from flowing from bottom to top, and thus realizes the smooth return of the cooling water to the cooling water tank under normal pressure; the opening and closing of the self-closing valve of the utility model completely relies on buoyancy, so it can better adapt to the complex working environment at sea, and it is not only practical, but also more durable.
[0041] Furthermore, the valve body 3, the flange connection part 4 and the plurality of groups of inner ribs 10 are integrally cast and formed, which not only improves the processing efficiency of the valve body 3, the flange connection part 4 and the inner ribs 10, but also improves the strength.
[0042] Furthermore, the valve body mechanism 1 also includes an air-permeable grille 11 and an annular pressure cap 12. The air-permeable grille 11 is locked at the lower end of the valve body 3 by the annular pressure cap 12, so that the staff can first install the float mechanism 2 in the float cavity 6, and then install the air-permeable grille 11 and the annular pressure cap 12 in sequence. The air-permeable grille 11 is locked at the lower end of the valve body 3 by the annular pressure cap 12, and the middle part of the air-permeable grille 11 is a hollow structure with a divergent structure.
[0043] Furthermore, a plurality of groups of reserved through holes 13 adapted to the locking bolts are arranged at equal angles on the flange connection portion 4 .
[0044] Example 2
[0045] As shown in the figure, the utility model provides embodiment 2, which includes all the technical solutions of embodiment 1. In addition, the float mechanism 2 includes a float body 18 of a spherical structure and a second sealing ring 14. The upper part of the float body 18 is provided with an annular groove, and the second sealing ring 14 is adapted to the annular groove. The annular groove coincides with the vertical projection of the first sealing ring 9, and the second sealing ring 14 is inserted into the annular groove. When the upper part of the float mechanism 2 is against the first sealing ring 9, the second sealing ring 14 is in contact with the first sealing ring 9. Since the first sealing ring 9 and the second sealing ring 14 are both made of rubber, when the upper part of the float mechanism 2 is against the first sealing ring 9, the second sealing ring 14 is in contact with the first sealing ring 9, thereby enhancing the sealing effect of the self-closing valve.
[0046] Furthermore, the float body 18 is an elliptical structure in a spherical structure, the long axis of the float body 18 is vertically arranged, and a strip groove compatible with the inner rib 10 is provided around the float body 18. The inner part of the inner rib 10 is slidably connected to the strip groove, and the float mechanism 2 slides up and down in the float cavity 6. The float body 18 is an elliptical structure, which makes the float body 18 have greater buoyancy, and the inner part of the inner rib 10 is slidably connected to the strip groove, which can enable the float body 18 to slide smoothly up and down in the float cavity 6.
[0047] Furthermore, the self-closing valve also includes a guide mechanism 15, which includes a guide seat 16 and a slide rod 17. The guide seat 16 is fixedly arranged on the upper part of the contraction cavity 8 through a hollow frame. The slide rod 17 is slidably connected to the guide seat 16, and the slide rod 17 is fixedly connected to the float mechanism 2. The central axis of the slide rod 17 coincides with the central axis of the hollow cavity 5. The float body 18 is an elliptical structure. The slide rod 17 is slidably connected to the guide seat 16, and the slide rod 17 is fixedly connected to the float mechanism 2. The central axis of the slide rod 17 coincides with the central axis of the hollow cavity 5, thereby enabling the float body 18 to slide up and down smoothly in the float cavity 6, preventing the float body 18 from being stuck in the float cavity 6.
[0048] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A multifunctional self-closing valve, characterized in that: It includes a valve body mechanism and a float mechanism, the valve body mechanism includes a valve body main body, the upper end of the valve body main body is fixedly connected with a flange connection part, the valve body main body is a cylindrical structure, the middle part of the valve body main body is provided with a hollow cavity which passes through from top to bottom, the hollow cavity includes a float cavity and a connecting cavity which are connected through each other, a shrinking cavity with a shrinking structure is provided between the float cavity and the connecting cavity, the central axes of the float cavity, the shrinking cavity and the connecting cavity coincide, a first sealing ring is provided around the lower end of the shrinking cavity, the float mechanism is a hollow spherical structure, the float mechanism is arranged in the float cavity, and the float mechanism floats up and down along the float cavity as the water level of the liquid changes, and when the upper part of the float mechanism abuts against the first sealing ring, the float mechanism closes the shrinking cavity to restrict the liquid from flowing from bottom to top.
2. A multifunctional self-closing valve according to claim 1, characterized in that: The inner wall of the float cavity is provided with a plurality of groups of inner ribs with strip structures, the inner ribs are fixedly connected to the inner wall of the float cavity, the inner ribs are inserted into the float cavity, the extension lines of the inner ribs are parallel to the central axis of the float cavity, and the through flow channel between the float mechanism and two adjacent groups of inner ribs is used for liquid to flow from top to bottom.
3. A multifunctional self-closing valve according to claim 2, characterized in that: A plurality of groups of inner ribs are arranged at equal angles on the inner wall of the float cavity.
4. A multifunctional self-closing valve according to claim 3, characterized in that: The valve body, flange connection part and multiple groups of inner ribs are integrally cast and formed.
5. A multifunctional self-closing valve according to claim 3, characterized in that: The float mechanism includes a float body with a spherical structure and a second sealing ring. An annular groove is provided on the upper part of the float body. The second sealing ring is adapted to the annular groove. The annular groove coincides with the vertical projection of the first sealing ring. The second sealing ring is inserted into the annular groove. When the upper part of the float mechanism abuts against the first sealing ring, the second sealing ring abuts against the first sealing ring.
6. A multifunctional self-closing valve according to claim 5, characterized in that: The float body is an elliptical structure, the long axis of the float body is vertically arranged, a strip slide groove matching the inner rib is arranged around the float body, the inner side of the inner rib is slidably connected to the strip slide groove, and the float mechanism slides up and down in the float cavity.
7. A multifunctional self-closing valve according to claim 6, characterized in that: It also includes a guiding mechanism, which includes a guiding seat and a sliding rod. The guiding seat is fixedly arranged on the upper part of the shrinking cavity body through a hollow frame. The sliding rod is slidably connected to the guiding seat. The sliding rod is fixedly connected to the floating ball mechanism. The central axis of the sliding rod coincides with the central axis of the hollow cavity.
8. A multifunctional self-closing valve according to claim 1, characterized in that: The valve body mechanism also includes a ventilation grille and an annular pressing cap, and the ventilation grille is locked at the lower end of the valve body through the annular pressing cap.
9. A multifunctional self-closing valve according to claim 8, characterized in that: The middle part of the air-permeable grille is a hollow structure with a divergent structure.
10. A multifunctional self-closing valve according to claim 1, characterized in that: The flange connection portion is provided with a plurality of groups of reserved through holes which are matched with the locking bolts at equal angles.