Novel anti-shake plate type balance valve

Abstract

The utility model belongs to a balance valve, and discloses a novel anti-shake plate type balance valve, which comprises a valve body provided with a control oil port, an oil inlet, an oil outlet and a sequence valve mounting port; the sealing nut is used for fixing the sequence valve; a conical surface is arranged at the bottom of the adjusting screw rod and is used for adjusting and controlling the flow of the oil port; the inside hexagonal bolt is used for fixing the internal component; the rubber mat is used for providing sealing; the sequence valve is mounted at the sequence valve mounting port and is controlled by the adjusting screw rod; and the first O-shaped sealing ring and the two second O-shaped sealing rings are used for providing additional sealing. According to the utility model, the structure of the valve body is simplified, and unnecessary components are removed, so that the whole volume is smaller, and the valve is easier to install and integrate into modern mechanical equipment. By simplifying the structure, the number of movable parts is reduced, the failure rate is reduced, and the overall reliability of the balance valve is improved. Meanwhile, due to the fact that quick-wear parts are reduced, the maintenance cost of a user is reduced.

Description

Technical Field

[0001] The utility model relates to a balancing valve, in particular to a novel anti-shake plate-type balancing valve. Background Art

[0002] Existing plate-type balancing valves are widely used in hydraulic control systems, primarily to control the load balance of hydraulic cylinders and prevent the load from freely falling or rising without control. However, traditional balancing valves have some shortcomings, including but not limited to the following:

[0003] The traditional anti-shake plate-type balancing valve is installed on the vertically mounted oil cylinder of the electrolytic aluminum multi-functional overhead crane hydraulic balancing valve, and the control oil port is equipped with a one-way valve.

[0004] Traditional anti-shake balancing valves, which often incorporate a check valve at the control port, are complex to design and manufacture, making them difficult to manufacture in a compact package. Because the balancing valves are typically mounted on overhead cranes, their size significantly impacts ease of maintenance and installation. Check valves are also sensitive to media cleanliness, leading to a high failure rate. Utility Model Content

[0005] The main purpose of the utility model is to provide a new anti-shake plate-type balancing valve, which aims to solve the technical problem that the control oil port of the traditional anti-shake balancing valve is equipped with a one-way valve, the design and manufacturing are relatively complex, and the overall volume cannot be made relatively small.

[0006] In order to achieve the above-mentioned purpose of the utility model, the first aspect of the utility model provides a new anti-shake plate-type balancing valve, comprising:

[0007] The valve body is provided with a control oil port, an oil inlet, an oil outlet and a sequence valve installation port;

[0008] Sealing nut, used to fix the sequence valve;

[0009] The adjusting screw has a conical surface at the bottom, which is used to adjust the flow rate of the control oil port;

[0010] Hexagon socket bolts, used to secure internal components;

[0011] Rubber gasket, used to provide sealing;

[0012] The sequence valve is installed at the sequence valve installation port and is controlled by the adjusting screw;

[0013] A first O-ring and two second O-rings are used to provide additional sealing.

[0014] Furthermore, the conical surface of the adjusting screw changes the flow of the control oil port by rotating the adjusting screw, thereby adjusting the pressure difference between the inlet and outlet.

[0015] Furthermore, the sequence valve opens when the high-pressure medium passes through the control oil port, and allows the medium to flow from the oil inlet to the oil outlet.

[0016] Furthermore, the structure of the valve body is simplified and the volume is reduced, which facilitates installation and maintenance, and eliminates the traditional one-way valve, thereby reducing the failure rate and maintenance costs.

[0017] Furthermore, when the balancing valve is activated, high-pressure medium enters through the oil inlet and is guided to the sequence valve through the adjusting screw, and the sequence valve opens to allow the medium to flow to the oil outlet.

[0018] Furthermore, when the balancing valve is closed, there is no high-pressure medium in the oil inlet and the control oil port, and the oil cylinder stops smoothly.

[0019] Furthermore, the sequence valve prevents oil from flowing back from the oil outlet to the oil inlet when the balancing valve is closed.

[0020] Furthermore, the balancing valve can generate a back pressure that is balanced with the changing load, so as to ensure that the load can be stopped reliably at any position and control the movement balance of the load when it is lowered.

[0021] Furthermore, the first O-type sealing ring is installed on the port of the valve body to control the oil port, and the two second O-type sealing rings are installed on the ports of the oil inlet and the oil outlet respectively.

[0022] Beneficial effects:

[0023] The novel anti-shake plate-type balancing valve of the utility model is deduced based on the exclusive content to obtain beneficial effects.

[0024] 1. The valve body structure of this utility model is simplified, eliminating unnecessary components, particularly the traditional check valve. This not only reduces points of failure but also makes the overall design smaller, making it easier to install and integrate into modern machinery. This simplified structure reduces the number of moving parts, lowers the failure rate, and improves the overall reliability of the balancing valve. Furthermore, the reduction in wearing parts simplifies maintenance, reducing maintenance costs for users.

[0025] 2. The utility model utilizes a sequence valve structure to enable high-pressure fluid to rapidly flow through the oil inlet and out the oil outlet when the balancing valve is activated, resulting in a fast response and better adaptability to rapidly changing load conditions. Furthermore, the sequence valve closes promptly when the balancing valve is closed, preventing oil backflow and ensuring a smooth stop of the cylinder. This avoids the jitter or shock that can occur when closing a traditional balancing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a front view of a novel anti-shake plate-type balancing valve according to an embodiment of the present utility model;

[0027] Figure 2 This is a cross-sectional view of a novel anti-shake plate-type balancing valve according to one embodiment of the present utility model;

[0028] Figure 3 This is a side view of a novel anti-shake plate-type balancing valve according to an embodiment of the present utility model;

[0029] Figure 4 This is a top view of a novel anti-shake plate-type balancing valve according to one embodiment of the present utility model;

[0030] in:

[0031] 1. Valve body; 2. Sealing nut; 3. Adjusting screw; 4. Hexagon socket bolt; 5. Rubber gasket; 6. Sequence valve; 7. First O-ring; 8. Second O-ring.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] Reference Figures 1-4 One embodiment of the present invention provides a novel plate-type balancing valve with anti-shake function, comprising a valve body 1, on which are disposed a control oil port, an oil inlet, an oil outlet, and a sequence valve mounting port. The design of the valve body 1 ensures a reasonable layout of various interfaces to facilitate connection to external pipelines and other components.

[0038] Use the sealing nut 2 to fix the sequence valve 6 to the sequence valve installation port of the valve body 1. Ensure that the nut is tightened with appropriate force to prevent leakage or malfunction caused by overtightening or overloosening.

[0039] In one embodiment, a conical surface is provided at the bottom of the adjusting screw 3. This conical surface can change the opening of the control oil port by rotating the adjusting screw 3, thereby controlling the flow rate in the oil circuit. The adjusting screw 3 should have a scale or marking on the outside to facilitate precise adjustment by the user.

[0040] Use the hexagon socket bolts 4 to fix the internal components such as the piston and spring in the valve body 1 to ensure that all parts are positioned correctly and firmly. When installing the hexagon socket bolts 4, add rubber pads 5 to ensure a more secure installation.

[0041] Optionally, a first O-ring 7 and two second O-rings 8 are installed at the control oil port, oil inlet port, and oil outlet port of the valve body 1. The sizes of these sealing rings need to match the ports to ensure a good sealing effect.

[0042] When the balancing valve is activated, high-pressure medium enters the valve body 1 through the oil inlet and is guided to the sequence valve 6 by the action of the adjusting screw 3. As the pressure increases, the sequence valve 6 will open, allowing the medium to flow from the oil inlet to the oil outlet.

[0043] When the balancing valve is closed, there is no high-pressure medium in the oil inlet and the control oil port. At this time, the sequence valve 6 is automatically closed to prevent the oil from flowing back from the oil outlet to the oil inlet, thereby ensuring that the cylinder stops smoothly.

[0044] In one embodiment, the adjustment of screw 3 controls the flow rate at the control port, thereby adjusting the pressure difference between the inlet and outlet, thereby controlling the speed and smoothness of the load lowering. The balancing valve can generate corresponding back pressure under different operating conditions to ensure that the load can be reliably stopped at any position and maintain the balance of the load during the lowering process.

[0045] After assembly, the balancing valve needs to be fully tested, including pressure test, sealing test, durability test, etc., to ensure that the product meets the design requirements and performs well in actual application.

[0046] Among them, the present application achieves the purpose of regulating flow by changing the gap between the valve core and the valve seat to change the flow resistance of the fluid flowing through the valve.

[0047] When oil flows from the outlet to the inlet, if the oil pressure at the outlet is greater than the inlet pressure, the valve core will move toward the inlet under the drive of the hydraulic pressure, causing the one-way valve to open and oil to flow freely from the outlet to the inlet. When oil flows from the inlet to the outlet, since the flow from the inlet to the outlet is cut off, the pressure at the pilot port must reach a certain value before the blue valve core can move to the left, opening the valve port and allowing oil to flow from the inlet to the outlet.

[0048] Hydraulic superimposed balancing valves are mainly used in hydraulic circuits of engineering machinery and other mechanical forms that are lowered by gravity. They can generate back pressure that balances the changing load to ensure that the load stops reliably at a certain position, and control the balance of movement when the load is lowered, to prevent the load from descending at an excessive speed and causing damage to structural parts, hydraulic parts, pipelines, etc.

[0049] illustrate:

[0050] When the hydraulic balance valve is started, high-pressure medium enters the valve body 1 from the oil inlet.

[0051] The pressure of the high-pressure medium pushes the adjusting screw 3, and the conical surface at the bottom of the adjusting screw 3 contacts the control oil port. By rotating the adjusting screw 3, the effective area of ​​the control oil port can be changed, thereby adjusting the flow rate of the medium passing through the control oil port.

[0052] When the flow rate at the control port reaches a certain value, sequence valve 6, receiving sufficient pressure, opens. Once opened, sequence valve 6 allows high-pressure fluid to flow from the inlet to the outlet, entering the subsequent hydraulic circuit or actuator. During normal operation, the balancing valve dynamically adjusts backpressure based on changes in load. The magnitude of backpressure depends on the position of adjusting screw 3, which determines the size of the control port opening and, consequently, the pressure differential between the inlet and outlet. Regardless of load fluctuations, the balancing valve continuously adjusts backpressure, ensuring a reliable stop at any position. Furthermore, as the load descends, its motion is balanced to prevent loss of control due to gravity.

[0053] When the balancing valve is closed, neither the oil inlet nor the control port receives high-pressure fluid. Since sequence valve 6 is designed to open in one direction, it automatically closes if high-pressure support is lost, preventing reverse flow of fluid from the oil outlet to the oil inlet. Once closed, the high-pressure fluid in the cylinder cannot escape, maintaining pressure within the cylinder and allowing the entire balancing valve to stop smoothly, avoiding the shock or vibration that could result from a sudden shutdown.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new anti-shake plate type balancing valve, characterized in that: include: A valve body (1) is provided with a control oil port, an oil inlet, an oil outlet, and a sequence valve installation port; A sealing nut (2) for fixing the sequence valve (6); An adjusting screw (3) is provided with a conical surface at the bottom thereof for adjusting the flow rate of the control oil port; Hexagon socket head bolts (4) for securing internal components; A rubber pad (5) for providing a seal; A sequence valve (6) is installed at the sequence valve installation port and is controlled by the adjusting screw (3); A first O-ring (7) and two second O-rings (8) are used to provide sealing.

2. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: The conical surface of the adjusting screw (3) changes the flow rate of the control oil port by rotating the adjusting screw (3).

3. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: The sequence valve (6) opens when the high-pressure medium passes through the control oil port, and allows the medium to flow from the oil inlet to the oil outlet.

4. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: The structure of the valve body (1) is simplified and the volume is reduced.

5. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: When the balancing valve is activated, high-pressure medium enters through the oil inlet and is guided to the sequence valve (6) through the adjusting screw (3). The sequence valve (6) opens to allow the medium to flow to the oil outlet.

6. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: When the balancing valve is closed, there is no high-pressure medium in the oil inlet and the control oil port, and the cylinder stops smoothly.

7. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: The sequence valve (6) prevents oil from flowing back from the oil outlet to the oil inlet when the balance valve is closed.

8. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: The balancing valve can generate a back pressure that is balanced with a changing load, so as to ensure that the load stops reliably at any position and control the movement balance when the load is lowered.

9. The anti-shake new plate-type balancing valve according to claim 1 is characterized in that: The first O-type sealing ring (7) is installed on the valve body (1) at the port of the oil control port, and the two second O-type sealing rings (8) are installed at the ports of the oil inlet and the oil outlet respectively.

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