Hydraulic control reversing valve with low reversing impact

Abstract

The utility model relates to the field of hydraulic control reversing valves, and discloses a hydraulic control reversing valve with low reversing impact, which comprises a valve body, the valve body is connected with a mounting plate through a fixing assembly, the inner wall of the mounting plate is rotatably connected with a driven gear, the driven gear is connected with a sliding plate through a sliding assembly, and the sliding plate is connected with a hydraulic cylinder. The sliding plates are slidably connected to the front end and the rear end of the top of the mounting plate, the ends, away from each other, of the sliding plates are fixedly connected with clamping plates, the right end of the driven gear is meshed with a driving gear, the axis of the top of the driving gear is fixedly connected with a rotating rod, and the top end of the rotating rod penetrates through the top of the mounting plate. And the rotating rod is connected with the mounting plate through a limiting assembly. According to the utility model, the valve body is prevented from deviating through pre-fixation of the fixing seat and the fixing bolt, so that the mounting precision and efficiency are improved; meanwhile, accurate adjustment and installation on an inclined plane are achieved by means of an electric push rod and other structures, the limitation that horizontal installation can only be achieved traditionally is broken through, the application range is greatly widened, and the device universality is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic control directional valves, and in particular to a hydraulic control directional valve with low directional shock. Background Technology

[0002] Low-impact hydraulic directional control valves are key components in hydraulic systems that use hydraulic oil as the control medium and achieve oil circuit switching via hydraulic signals. During the switching process, they effectively reduce the impact of sudden pressure changes, vibrations, and noise caused by the instantaneous oil circuit switching, preventing damage to other components in the hydraulic system, ensuring the stability and reliability of system operation, extending the overall service life of the hydraulic system, and improving system efficiency. They play a vital role in hydraulic transmission systems in many fields such as engineering machinery and industrial automation.

[0003] However, in actual operation, it has been found that existing low-reversing-impact hydraulic directional control valves still have the following technical problems:

[0004] Existing directional control valves often lack a pre-fixed structure during installation, which makes it easy for the valve body to shift during installation. This makes it difficult to guarantee installation accuracy, requiring repeated adjustments and corrections, which significantly increases installation time and labor costs. Furthermore, most of them can only be used on horizontal installation surfaces and cannot ensure horizontal installation on inclined planes. This limits the application scenarios and makes it difficult to meet the installation requirements under complex working conditions, resulting in poor versatility.

[0005] In response to this technical problem, this application proposes a hydraulically controlled directional valve with low reversing shock. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the ease of misalignment due to lack of pre-fixation during installation, resulting in long correction times, and insufficient versatility for horizontal installation. This invention proposes a low-impact hydraulic directional control valve. This valve uses a fixed seat and fixing bolt for pre-fixation to prevent valve body misalignment, improving installation accuracy and efficiency. Simultaneously, it utilizes structures such as electric push rods to achieve precise adjustment and installation on inclined surfaces, overcoming the traditional limitation of only horizontal installation, greatly expanding its application range, and enhancing the device's versatility.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A low-reversing-impact hydraulic directional control valve includes a valve body. The valve body is connected to a mounting plate via a fixing assembly. A driven gear is rotatably connected to the inner wall of the mounting plate. The driven gear is connected to a sliding plate via a sliding assembly. The sliding plate is slidably connected to the front and rear ends of the top of the mounting plate. Clamping plates are fixedly connected to one end of the top of the sliding plate. A driving gear is meshed with the right end of the driven gear. A rotating rod is fixedly connected to the top axis of the driving gear. The top end of the rotating rod passes through the top of the mounting plate. The rotating rod is connected to the mounting plate via a limiting assembly.

[0009] Furthermore, a base is rotatably connected to the bottom right end of the mounting plate, and a second limiting groove is formed at the top left end of the base. A slider is slidably connected to the inner wall of the second limiting groove, and an electric push rod is fixedly connected to the middle right end of the slider. Connecting rods are rotatably connected to both the front and rear sides of the slider, and the left end of the connecting rod is rotatably connected to the bottom left end of the mounting plate.

[0010] Furthermore, the fixing component includes a fixing seat, which is fixedly connected to the bottom of the front and rear sides of the valve body, and the fixing seat is connected to the mounting plate by a fixing bolt.

[0011] Furthermore, the sliding assembly includes a sliding groove and a sliding rod. The sliding groove is formed at the front and rear ends of the bottom of the driven gear, and the sliding rod is fixedly connected to one end of the bottom of the slide plate. The inner wall of the sliding groove is slidably connected to the sliding rod.

[0012] Furthermore, the limiting component includes a limiting groove, which is formed on the left and right sides of the rotating rod. A limiting block is slidably connected to the inner wall of the limiting groove. The limiting block is detachably connected to the top of the mounting plate. The bottom middle of the limiting block is connected to the bottom side of the inner wall of the limiting groove through a tension spring.

[0013] Furthermore, a limiting ring is threaded to the outer top of the rotating rod, and the bottom of the limiting ring abuts against the top of the limiting block.

[0014] Furthermore, the clamping plate is fitted to the front and rear sides of the fixing seat.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the valve body and mounting plate are pre-fixed by the fixing seat and fixing bolt, which provides a stable foundation for subsequent operation and effectively prevents the valve body from moving at will during adjustment. However, the existing directional valve is prone to valve body displacement during installation due to the lack of effective pre-fixing measures, resulting in reduced installation accuracy. It requires repeated position correction, which consumes a lot of time and manpower.

[0017] 2. In this utility model, through the cooperation of structures such as electric push rod, slider, limit groove and connecting rod, the tilt angle of the mounting plate can be precisely adjusted on various inclined planes, so that the valve body is kept horizontally installed. Compared with the traditional directional valve, which can usually only be installed on a horizontal mounting surface and whose application scenarios are greatly limited, this greatly expands the application range of the directional valve and significantly improves the versatility of the overall device. Attached Figure Description

[0018] Figure 1 This is a perspective view of a hydraulically controlled directional valve with low directional shock proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the driven gear structure of a hydraulically controlled directional valve with low directional shock proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the slide groove structure of a hydraulically controlled directional valve with low reversing impact proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the drive gear structure of a hydraulically controlled directional valve with low directional shock proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the rotating rod structure of a hydraulically controlled directional valve with low directional shock proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the base structure of a hydraulically controlled directional valve with low directional shock proposed in this utility model.

[0024] Legend:

[0025] 1. Valve body; 2. Fixing assembly; 3. Mounting plate; 4. Driven gear; 5. Sliding assembly; 6. Slide plate; 7. Clamping plate; 8. Driving gear; 9. Rotating rod; 10. Limiting assembly; 11. Base; 12. Electric push rod; 13. Slider; 14. Connecting rod; 15. Limiting groove two; 201. Fixing seat; 202. Fixing bolt; 501. Slide groove; 502. Slide rod; 1001. Limiting groove one; 1002. Limiting block; 1003. Tension spring; 1004. Limiting ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a hydraulically controlled directional valve with low reversing impact, comprising a valve body 1, a mounting plate 3 connected to the valve body 1 via a fixing component 2, a driven gear 4 rotatably connected to the inner wall of the mounting plate 3, a sliding plate 6 connected to the driven gear 4 via a sliding component 5, the sliding plate 6 slidably connected to the front and rear ends of the top of the mounting plate 3, a clamping plate 7 fixedly connected to one end of the top of the sliding plate 6, a driving gear 8 meshing with the right end of the driven gear 4, a rotating rod 9 fixedly connected to the top axis of the driving gear 8, the top end of the rotating rod 9 penetrating the top of the mounting plate 3, and the rotating rod 9 connected to the mounting plate 3 via a limiting component 10.

[0028] Specifically, when valve body 1 needs to be installed, valve body 1 is first pre-connected to mounting plate 3 via fixing seat 201 and fixing bolt 202 of fixing component 2 to achieve pre-fixation, preventing valve body 1 from moving arbitrarily during subsequent adjustment and providing a stable foundation for installation operation; rotating rod 9 drives drive gear 8 to rotate, drive gear 8 to mesh and drive driven gear 4, and during the rotation of driven gear 4, its bottom groove 501 slides along the bottom slide rod 502 of slide plate 6, thereby driving slide plate 6 to slide at the front and rear ends of the top of mounting plate 3, so that... The clamping plates 7 on the top of the slide plate 6 move closer or further apart, and the clamping plates 7 fit against the front and rear sides of the fixing seat 201 to further stabilize the valve body 1 and achieve more reliable fixation. During this process, the limiting blocks 1002 in the limiting grooves 1001 opened on the left and right sides of the rotating rod 9 can slide along the limiting grooves 1001 under the action of the tension spring 1003. When the appropriate angle is adjusted, the limiting ring 1004 is rotated so that its bottom abuts against the top of the limiting block 1002 to fix the position of the rotating rod 9 and prevent the active gear 8, driven gear 4 and other components from rotating due to external force.

[0029] This pre-fixation prevents the valve body 1 from shifting during installation, reducing the number of repeated adjustments and corrections, and saving installation time and labor costs. Installers do not need to spend a lot of time constantly correcting the position of the valve body 1, allowing them to focus more on other installation steps, thereby improving overall installation efficiency.

[0030] Reference Figure 1 , Figure 3 and Figure 6The mounting plate 3 has a base 11 rotatably connected to its bottom right end. A limiting groove 15 is formed at the top left end of the base 11. A slider 13 is slidably connected to the inner wall of the limiting groove 15. An electric push rod 12 is fixedly connected to the middle right side of the slider 13. Connecting rods 14 are rotatably connected to both the front and rear sides of the slider 13. The left end of the connecting rod 14 is rotatably connected to the bottom left end of the mounting plate 3. The fixing assembly 2 includes a fixing seat 201, which is fixedly connected to the bottom ends of the front and rear sides of the valve body 1. The fixing seat 201 is connected to the mounting plate 3 via a fixing bolt 202. The sliding assembly 5 includes a sliding groove 501 and a sliding rod 502. The sliding groove 501 is formed at the bottom front and rear ends of the driven gear 4. The sliding rod 502 is fixedly connected to the bottom end of the slide plate 6 near one end. The inner wall of the sliding groove 501 is slidably connected to the sliding rod 502. The limiting assembly 10 includes a limiting groove 1001, which is formed on the left and right sides of the rotating rod 9. A limiting block 1002 is slidably connected to the inner wall of the limiting groove 1001. The limiting block 1002 is detachably connected to the top of the mounting plate 3. The bottom middle of the limiting block 1002 is connected to the bottom side of the inner wall of the limiting groove 1001 via a tension spring 1003. A limiting ring 1004 is threadedly connected to the top of the outer side of the rotating rod 9. The bottom of the limiting ring 1004 abuts against the top of the limiting block 1002. The clamping plate 7 fits against the front and rear sides of the fixing seat 201.

[0031] This design breaks through the limitations of traditional installation methods that are restricted to horizontal mounting surfaces, enabling horizontal installation of the valve body 1 on various inclined planes, greatly expanding the application scenarios of the directional control valve. Driven by the electric actuator 12, it boasts a high degree of automation. Installers only need to control the extension and retraction of the electric actuator 12 to precisely adjust the tilt angle of the mounting plate 3. Compared to traditional manual adjustment methods, this significantly reduces labor intensity and greatly improves installation efficiency. Simultaneously, the precise extension and retraction control of the electric actuator 12, combined with the cooperation of the slider 13, the limiting groove 15, and the connecting rod 14, allows for sub-millimeter-level angle fine-tuning, ensuring the valve body 1 is in a strictly horizontal state and that the valve core is in the optimal working position. This effectively avoids problems such as valve core jamming and directional control delays caused by installation tilt, maintaining the precise control performance and rapid response capability of the directional control valve. Furthermore, the structure maintains stable mechanical transmission during adjustment, ensuring that the valve body 1 remains level even under complex vibration conditions or load changes. This enhances the reliability and stability of the hydraulic system, reduces the frequency of failures and maintenance costs caused by installation angle issues, and the modular design facilitates quick adaptation to different specifications of directional valves and mounting surfaces, further improving the versatility and practicality of the overall device.

[0032] Working principle: When installing this low-impact hydraulic directional control valve, the valve body 1 and the mounting plate 3 are initially connected and pre-fixed using the fixing seat 201 and fixing bolt 202 to prevent the valve body 1 from shifting during installation. Rotating the rotating rod 9 drives the driving gear 8, which in turn drives the driven gear 4. The bottom slide groove 501 of the driven gear 4 slides along the bottom slide rod 502 of the slide plate 6, causing the clamping plate 7 on the slide plate 6 to move closer to or further away from the fixing seat 201, further stabilizing the valve body 1. At the same time, the limiting block 1002 in the upper limit groove 1001 of the rotating rod 9 slides under the action of the tension spring 1003. After adjustment, the limiting ring 1004 is rotated to abut against the limiting block 1002 to fix the rotating rod 9 and prevent the components from rotating due to external force. To ensure the valve body 1 is horizontal when installed on an inclined surface, the electric push rod 12 is activated, pushing the slider 13 to slide within the limiting groove 15 of the base 11. The slider 13 drives the connecting rod 14 to rotate, causing the mounting plate 3 to rotate around its connection point with the base 11. By controlling the extension and retraction of the electric push rod 12, the tilt angle of the mounting plate 3 is precisely adjusted, achieving horizontal installation of the valve body 1. During this process, the electric push rod 12 automatically drives the adjustment, and combined with the cooperation of various structures, precise angle fine-tuning is achieved to ensure the valve body 1 is horizontal, guaranteeing the working performance of the valve core. Furthermore, the structure is stable and highly versatile.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic pilot directional control valve with low commutation shock, characterized in that, The utility model provides a valve body (1) is connected with the mounting plate (3) through the fixed assembly (2), the inner wall rotation connection of mounting plate (3) has driven gear (4), driven gear (4) is connected with sliding plate (6) through sliding assembly (5), sliding plate (6) is connected in the top front and rear end of mounting plate (3) and is connected with the clamping plate (7) of the top opposite end of sliding plate (6) fixedly, the right end engagement of driven gear (4) has driving gear (8), the top axle of driving gear (8) fixed connection has the rotation bar (9), the top of rotation bar (9) penetrates the top of mounting plate (3), and rotation bar (9) is connected with mounting plate (3) through limiting component (10).

2. A hydraulic pilot directional control valve with low commutation impact according to claim 1, characterized in that: The bottom right end of the mounting plate (3) is rotatably connected with a base (11), the top left end of the base (11) is provided with a limiting groove two (15), the limiting groove two (15) is slidably connected with a sliding block (13), the right side of the sliding block (13) is fixedly connected with an electric push rod (12), and the front and rear sides of the sliding block (13) are rotatably connected with a connecting rod (14), and the left end of the connecting rod (14) is rotatably connected with the bottom left end of the mounting plate (3).

3. A hydraulic pilot directional control valve with low commutation impact according to claim 1, characterized in that: The fixed assembly (2) comprises a fixed seat (201), and the fixed seat (201) is fixedly connected to the bottom ends of the front and rear sides of the valve body (1).

4. A hydraulic pilot directional control valve with low commutation impact according to claim 1, characterized in that: The sliding assembly (5) comprises a sliding groove (501) and a sliding rod (502), the sliding groove (501) is provided at the bottom front and rear ends of the driven gear (4), and the sliding rod (502) is fixedly connected to the bottom proximal end of the sliding plate (6).

5. A hydraulic pilot directional control valve with low commutation impact according to claim 1, characterized in that: The limiting component (10) comprises a limiting groove one (1001), the limiting groove one (1001) is provided on the left and right sides of the rotation bar (9), the limiting groove one (1001) is slidably connected with a limiting block (1002), the limiting block (1002) is detachably connected with the top of the mounting plate (3), and the bottom middle end of the limiting block (1002) is connected with the inner wall bottom side of the limiting groove one (1001) through a tension spring (1003).

6. A hydraulic pilot directional control valve with low commutation impact according to claim 5, characterized in that: The outer top end of the rotation bar (9) is threadedly connected with a limiting ring (1004), and the bottom of the limiting ring (1004) abuts against the top of the limiting block (1002).

7. A hydraulic pilot directional control valve with low commutation impact according to claim 3, characterized in that: The clamping plate (7) is attached to the front and rear sides of the fixed seat (201).

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