Marine hydraulic reversing valve capable of preventing external leakage
Through the design of the sliding valve core and the pressure leakage mechanism in the vessel dynamic replacement of the liquid to the valve, the leakage effect and use effect of the hydraulic switching valve due to excessive internal pressure achieve the problem of excessive internal pressure.
Patent Information
- Application Number
- CN202421244431.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Existing hydraulic reversing valves are prone to leakage due to excessive internal pressure in marine hydraulic systems, reducing their effectiveness.
Design a type of hydraulic dynamic mobilization valve with an external leak. By setting the sliding valve core and the pressure leakage mechanism of the sliding valve core inside the valve body, the internal structure of the fixed box is used to discreate the hydraulic oil when the valve core slides Internal pressure is too high.
Effectively prevent leakage caused by the high pressure of the internal pressure of the hydraulic direction valve, and improve the sealing effect and use effect of the device.
Smart Images
Figure CN222416158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic reversing valves, in particular to a marine hydraulic reversing valve which is anti-external leakage. Background Art
[0002] A hydraulic reversing valve is a valve used to control the flow direction of a fluid. It is usually composed of a valve body, a valve core, a spring and a drive device. The working principle of a hydraulic reversing valve is to change the position of the valve core so that the fluid can flow between different channels. When the valve core is in a certain position, the fluid can enter the valve body from a channel and then flow out through the hole of the valve core to realize the flow of the liquid. When the valve core changes direction, the direction will also change.
[0003] Marine hydraulic reversing valves are directional control valves specially used in ship hydraulic systems. Since ship hydraulic systems need to realize complex control functions, such as the operation of steering gears, thrusters, ship cranes, etc., marine hydraulic reversing valves have some special design and performance requirements. However, some existing hydraulic reversing valve structures are subject to high internal pressure during actual use, which can easily lead to leakage after long-term use, thereby reducing the use effect of the device. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a marine hydraulic reversing valve which is leak-proof.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] 14. The illustrative embodiment of the present invention relates to a marine hydraulic reversing valve which prevents external leakage, comprising a valve body, an oil inlet pipe being fixedly connected to the top of the valve body, a first oil chamber being horizontally arranged inside the valve body, a second oil chamber being arranged at one end of the first oil chamber, an oil path being arranged at one end of the second oil chamber, one end of the oil path being communicated with the bottom end of the oil inlet pipe, a valve core being sleeved inside the first oil chamber, a sliding mechanism for sliding the valve core being arranged inside the valve body, a fixing box being fixedly connected to the bottom of the valve body, a connecting warehouse being vertically arranged inside the fixing box, a connecting port being arranged at the top of the connecting warehouse, the connecting warehouse being communicated with the first oil chamber, a pressure relief mechanism being arranged inside the fixing box, and the internal structure of the fixing box being arranged so as to effectively relieve the pressure of the hydraulic oil entering the first oil chamber while the valve core is sliding horizontally, so as to prevent the internal pressure from being too high, thereby damaging the internal sealing effect of the device.
[0007] Preferably, the sliding mechanism includes a sliding column, one end of the valve core is arranged in a conical shape, the valve core is fitted with the inside of the second oil chamber, the sliding column is fixedly connected to the center of one end of the valve core, a connecting block is sleeved inside the first oil chamber, the connecting block is fixedly connected to one end of the sliding column, a circular hole is horizontally opened at the other end of the first oil chamber, an oil seal is installed inside the circular hole, a telescopic column is sleeved inside the oil seal, the telescopic column is fixedly connected to the center of one side of the connecting block surface, a first spring is arranged on the side of the connecting block close to the oil seal, one end of the first spring is arranged on the other side of the first oil chamber, and is used to limit the horizontal sliding of the valve core and the sliding column.
[0008] Furthermore, the inner wall of the first oil chamber is provided with a groove, the groove is circular, a plurality of fixed blocks are horizontally fixedly connected inside the groove, through holes are opened through the surfaces of the plurality of fixed blocks, and each of the fixed blocks is interconnected to allow the internal hydraulic oil to pass through the inside of the groove.
[0009] Preferably, the pressure relief mechanism includes a piston, the piston sleeve is arranged inside the connecting warehouse, the piston slides vertically inside the connecting warehouse, a sealing ring is installed on the arc surface of the piston surface, a second spring is arranged at the bottom of the piston, and the bottom end of the second spring is arranged at the bottom of the first oil chamber, two fixed tubes are installed on one side of the surface of the fixed box, the two fixed tubes are connected to the inside of the fixed box, connecting tubes are installed on the surfaces of the two fixed tubes, and one-way valves are installed on the surfaces of the two connecting tubes, a connecting chamber is horizontally arranged at one end of the second oil chamber, the bottom end of the oil circuit is connected to the connecting chamber, two connecting grooves are vertically arranged inside the valve body, the top ends of the two connecting grooves are connected to the inside of the connecting chamber, the top ends of the two connecting tubes are connected to the bottom end of the connecting groove, a bottom plate is arranged at the bottom of the valve body, the four corners of the top of the bottom plate are vertically fixedly connected to support columns, and the top ends of the four support columns are fixedly connected to the bottom of the valve body, which are used to limit the piston from sliding up and down, so that the hydraulic oil in the groove can enter the inside of the connecting warehouse.
[0010] The beneficial effects of the utility model are:
[0011] When in use, by setting the internal structure of the fixed box, the hydraulic oil entering the first oil chamber can be effectively depressurized while the valve core slides horizontally, preventing the internal pressure from being too high, thereby damaging the internal sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a front view of a marine hydraulic reversing valve that prevents external leakage proposed by the utility model;
[0013] Figure 2 This is a cross-sectional view of the internal structure of a marine hydraulic reversing valve that prevents external leakage proposed by the utility model;
[0014] Figure 3 A schematic diagram of a sliding mechanism of a marine hydraulic reversing valve that prevents external leakage proposed by the utility model;
[0015] Figure 4 The utility model is a schematic diagram of a pressure relief mechanism of a marine hydraulic reversing valve that prevents external leakage.
[0016] In the figure: 1. valve body; 11. oil inlet pipe; 12. first oil chamber; 13. second oil chamber; 14. oil circuit; 15. connecting chamber; 16. groove; 17. fixing block; 18. through hole; 19. round hole; 110. connecting groove; 2. fixing box; 21. connecting compartment; 22. connecting port; 23. fixing pipe; 3. bottom plate; 31. supporting column; 4. valve core; 41. sliding column; 42. connecting block; 43. telescopic column; 44. oil seal; 45. first spring; 5. connecting pipe; 51. one-way valve; 6. piston; 61. sealing ring; 62. second spring. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0018] Reference Figure 1-Figure 4 , a marine hydraulic reversing valve that prevents external leakage, includes a valve body 1, an oil inlet pipe 11 is fixedly connected to the top of the valve body 1, a first oil chamber 12 is horizontally arranged inside the valve body 1, a second oil chamber 13 is arranged at one end of the first oil chamber 12, an oil path 14 is arranged at one end of the second oil chamber 13, one end of the oil path 14 is communicated with the bottom end of the oil inlet pipe 11, a valve core 4 is sleeved inside the first oil chamber 12, a sliding mechanism for sliding the valve core 4 is arranged inside the valve body 1, a fixed box 2 is fixedly connected to the bottom of the valve body 1, a connecting warehouse 21 is vertically arranged inside the fixed box 2, a connecting port 22 is arranged at the top of the connecting warehouse 21, the connecting warehouse 21 is communicated with the first oil chamber 12, and a pressure relief mechanism is arranged inside the fixed box 2. Through the arrangement of the internal structure of the fixed box 2, the hydraulic oil entering the first oil chamber 12 can be effectively relieved while the valve core 4 is horizontally sliding, so as to prevent the internal pressure from being too high, thereby damaging the internal sealing effect of the device.
[0019] Reference Figure 1-Figure 3In a preferred embodiment, the sliding mechanism includes a sliding column 41, one end of the valve core 4 is set in a conical shape, the valve core 4 is fitted with the inside of the second oil chamber 13, the sliding column 41 is fixedly connected to the center of one end of the valve core 4, a connecting block 42 is sleeved inside the first oil chamber 12, and the connecting block 42 is fixedly connected to one end of the sliding column 41. A circular hole 19 is horizontally opened at the other end of the first oil chamber 12, an oil seal 44 is installed inside the circular hole 19, and a telescopic column 43 is sleeved inside the oil seal 44. The telescopic column 43 is fixedly connected to the center of one side of the surface of the connecting block 42, and a first spring 45 is provided on the side of the connecting block 42 close to the oil seal 44. One end of the first spring 45 is arranged on the other side of the first oil chamber 12, which is used to limit the horizontal sliding of the valve core 4 and the sliding column 41.
[0020] Reference Figure 1 and Figure 2 In a preferred embodiment, a groove 16 is provided on the inner wall of the first oil chamber 12. The groove 16 is arranged in a circular shape. A plurality of fixed blocks 17 are horizontally fixedly connected inside the groove 16. Through holes 18 are opened through the surfaces of the plurality of fixed blocks 17. Each fixed block 17 is connected to each other so that the hydraulic oil inside can pass through the inside of the groove 16.
[0021] Reference Figure 2 , Figure 3 and Figure 4 In a preferred embodiment, the pressure relief mechanism includes a piston 6, which is sleeved inside the connecting chamber 21, and the piston 6 slides vertically inside the connecting chamber 21. A sealing ring 61 is installed on the arc surface of the piston 6, and a second spring 62 is arranged at the bottom of the piston 6. The bottom end of the second spring 62 is arranged at the bottom of the first oil chamber 12. Two fixed pipes 23 are installed on one side of the surface of the fixed box 2. The two fixed pipes 23 are connected to the inside of the fixed box 2. Connecting pipes 5 are installed on the surfaces of the two fixed pipes 23. Check valves 51 are installed on the surfaces of the two connecting pipes 5. The second oil chamber A connecting chamber 15 is horizontally arranged at one end of 13, and the bottom end of the oil circuit 14 is connected to the connecting chamber 15. Two connecting grooves 110 are vertically arranged inside the valve body 1. The top ends of the two connecting grooves 110 are connected to the inside of the connecting chamber 15, and the top ends of the two connecting pipes 5 are connected to the bottom ends of the connecting grooves 110. A bottom plate 3 is arranged at the bottom of the valve body 1, and the four corners of the top of the bottom plate 3 are vertically fixedly connected to support columns 31. The top ends of the four support columns 31 are fixedly connected to the bottom of the valve body 1, which are used to limit the piston 6 from sliding up and down, so that the hydraulic oil in the groove 16 can enter the inside of the connecting chamber 21.
[0022] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: in actual use, through the setting of the internal structure of the fixed box 2, the hydraulic oil entering the first oil chamber 12 can be effectively depressurized while the valve core 4 is sliding horizontally, so as to prevent the internal pressure from being too high, thereby causing damage to the internal sealing effect of the device. When in use, it can be connected to the surface of the oil inlet pipe 11 through a hydraulic device, and then the hydraulic oil can be transported to the inside of the device through the hydraulic device, and at the same time, the valve core 4 and the sliding column 41 can be slid horizontally. When the valve core 4 slides to the position of the groove 16, The maximum position of the device can be reached, and the continuously delivered hydraulic oil will enter the connecting chamber 21 through the connecting port 22 and press the piston 6 downward. At this time, the pressure inside the device can be effectively relieved to prevent the internal sealing effect from being destroyed due to excessive pressure. At the same time, when the hydraulic oil inside the valve body 1 is absorbed, the valve core 4 can be returned to its position through the setting of the first spring 45. At the same time, the hydraulic oil inside the connecting chamber 21 will also flow through the connecting pipe 5 and the one-way valve 51, and then enter the connecting cavity 15 and the oil circuit 14 through the connecting groove 110, thereby improving the use effect of the device.
[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A marine hydraulic reversing valve with an anti-external leakage function, comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected to an oil inlet pipe (11); a first oil chamber (12) is horizontally arranged inside the valve body (1); a second oil chamber (13) is arranged at one end of the first oil chamber (12); an oil path (14) is arranged at one end of the second oil chamber (13); one end of the oil path (14) is communicated with the bottom end of the oil inlet pipe (11); a valve core (4) is sleeved inside the first oil chamber (12); a sliding mechanism for sliding the valve core (4) is arranged inside the valve body (1); a fixed box (2) is fixedly connected to the bottom of the valve body (1); a connecting chamber (21) is vertically arranged inside the fixing box (2); a connecting port (22) is arranged at the top of the connecting chamber (21); the connecting chamber (21) is communicated with the inside of the first oil chamber (12); a pressure relief mechanism is arranged inside the fixing box (2).
2. The anti-leakage marine hydraulic reversing valve according to claim 1, characterized in that: The sliding mechanism comprises a sliding column (41), one end of the valve core (4) is arranged in a conical shape, the valve core (4) is fitted with the inside of the second oil chamber (13), the sliding column (41) is fixedly connected to the center of one end of the valve core (4), and a connecting block (42) is sleeved inside the first oil chamber (12), and the connecting block (42) is fixedly connected to one end of the sliding column (41).
3. The anti-leakage marine hydraulic reversing valve according to claim 2, characterized in that: A circular hole (19) is horizontally opened at the other end of the first oil chamber (12), an oil seal (44) is installed inside the circular hole (19), a telescopic column (43) is sleeved inside the oil seal (44), the telescopic column (43) is fixedly connected to the center of one side of the surface of the connecting block (42), a first spring (45) is arranged on the side of the connecting block (42) close to the oil seal (44), and one end of the first spring (45) is arranged on the other side of the first oil chamber (12).
4. The anti-external leakage marine hydraulic reversing valve according to claim 3, characterized in that: The inner wall of the first oil chamber (12) is provided with a groove (16), the groove (16) is arranged in a circular shape, a plurality of fixing blocks (17) are horizontally fixedly connected inside the groove (16), a through hole (18) is formed through the surface of the plurality of fixing blocks (17), and each of the fixing blocks (17) is connected to each other.
5. The anti-external leakage marine hydraulic reversing valve according to claim 1, characterized in that: The pressure relief mechanism comprises a piston (6), the piston (6) is sleeved inside the connection chamber (21), the piston (6) vertically slides inside the connection chamber (21), a sealing ring (61) is installed on the arc surface of the piston (6), a second spring (62) is arranged at the bottom of the piston (6), and the bottom end of the second spring (62) is arranged at the bottom of the first oil chamber (12).
6. The anti-leakage marine hydraulic reversing valve according to claim 5, characterized in that: Two fixed tubes (23) are installed on one side of the surface of the fixed box (2), and the two fixed tubes (23) are both connected to the interior of the fixed box (2). Connecting tubes (5) are installed on the surfaces of the two fixed tubes (23), and one-way valves (51) are installed on the surfaces of the two connecting tubes (5).
7. The anti-external leakage marine hydraulic reversing valve according to claim 6, characterized in that: A connecting chamber (15) is horizontally arranged at one end of the second oil chamber (13), the bottom end of the oil path (14) is connected to the connecting chamber (15), two connecting grooves (110) are vertically arranged inside the valve body (1), the top ends of the two connecting grooves (110) are connected to the inside of the connecting chamber (15), and the top ends of the two connecting pipes (5) are connected to the bottom ends of the connecting grooves (110).
8. The anti-leakage marine hydraulic reversing valve according to claim 1, characterized in that: A bottom plate (3) is provided at the bottom of the valve body (1), and four corners of the top of the bottom plate (3) are vertically fixedly connected to support columns (31), and the top ends of the four support columns (31) are fixedly connected to the bottom of the valve body (1).