Novel stacked stop valve

Abstract

The utility model belongs to the technical field of hydraulic systems, and discloses a novel stacked stop valve which comprises a valve body, and a pressure port P, a port A, a port B and an oil return port T are formed in the valve body. Wherein the ball valve sealing bowls are mounted in the pressure port P, the pressure port A and the pressure port B to support the ball valve ball body; the novel stacked cut-off valve is provided with the port P, the port T, the port A, the port B and the port Y, each port can independently or simultaneously cut off five oil ducts, and overhaul and maintenance are facilitated. The multi-oil-duct control function greatly improves the flexibility and reliability of the system. Scale marks of a screwing head of the ball valve are perpendicular to the cut-off valve when the ball valve is normally open, the cut-off state can be switched only by rotating the ball valve downwards by 90 degrees through a wrench, and space of the left position and the right position does not need to be occupied. By means of the arrangement, the assembling space is greatly reduced, multi-loop installation can be achieved in a small space, and the multi-loop valve is particularly suitable for installation of multiple sandwich valve sets and non-stop oil way cutting off and valve replacing operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic system, especially to a novel superimposed cut-off valve. BACKGROUND

[0002] In modern industrial production processes, hydraulic systems are widely used in various mechanical equipment, and their reliability and safety are crucial for the stable operation of the entire production system.

[0003] Traditional hydraulic cut-off valves usually have a single function design, and traditional cut-off valves can only control one oil passage, which cannot meet the demand of simultaneous control of multiple oil passages, especially when multiple oil passages need to be repaired or maintained, the operation is complex and inefficient. The installation method of the traditional cut-off valve is various, and there is no unified standard, which makes the installation and maintenance process cumbersome, increases the difficulty and time cost of on-site operation. The volume of the traditional cut-off valve is large, and a lot of space is occupied during installation, especially in a multi-loop system, the limitation of space becomes an important factor restricting the system design. The sealing performance of the traditional cut-off valve is not ideal, and leakage problems are prone to occur, which affects the reliability and safety of the system. SUMMARY

[0004] The main purpose of the utility model is to provide a novel superimposed cut-off valve, which aims to solve the technical problems that the traditional cut-off valve can only control one oil passage, cannot meet the demand of simultaneous control of multiple oil passages, and the sealing performance is not ideal and leakage is prone to occur.

[0005] In order to achieve the above-mentioned utility model purposes, the utility model discloses a novel superimposed cut-off valve in the first aspect, which comprises a valve body, wherein the valve body is provided with a pressure P port, an A port, a B port and an oil return T port;

[0006] It also includes a ball valve ball, a ball valve sealing bowl, a ball valve control spindle, a ball valve limit pin, a shaft steel wire retainer ring, a fifth O ring, an internal hexagonal plug, a combination gasket, an internal hexagonal screw, and a double-headed internal hexagonal screw.

[0007] The ball valve sealing bowl is installed in the pressure P port, the A port and the B port to support the ball valve ball.

[0008] Further, the sealing groove of the ball valve control spindle is equipped with a first ball valve retainer ring, a first O ring and a second ball valve retainer ring, which is used to realize the sealing and positioning between the ball valve ball.

[0009] Further, the ball valve ball is fixed inside the pressure P port, the A port and the B port of the valve body through the ball valve control spindle;

[0010] And the rotation stroke is limited by the ball valve limit pin and the shaft steel wire retainer ring.

[0011] Further, a DN25 one-way valve set and an oil port pad are arranged at the oil return T port.

[0012] A fourth O-ring is arranged between the oil port pad and the oil return T port to ensure sealing effect.

[0013] Further, the oil port pad is installed at the pressure P port, the A port and the B port of the valve body to fix the ball valve ball.

[0014] The second O-ring and the third O-ring are arranged on the oil port pad to ensure sealing performance.

[0015] Further, a process hole is arranged on the valve body, and the process hole is sealed by the internal hexagonal plug and the combined gasket to ensure the sealing performance of the whole structure.

[0016] Further, the internal hexagonal screw and the double-end internal hexagonal screw are used to fix the end face of the valve body to enhance the stability of the equipment.

[0017] Further, the ball valve ball and the ball valve control spindle are matched to effectively reduce the resistance of fluid passing and improve the working efficiency.

[0018] Further, the ball valve limiting pad is arranged between the ball valve control spindle and the ball valve ball to control the rotation angle of the ball valve ball and ensure the accurate opening and closing position of the valve.

[0019] Further, the fifth O-ring is arranged at the connecting position between the ball valve control spindle and the valve body to further improve the sealing performance and prevent fluid leakage.

[0020] Beneficial effects:

[0021] 1. The novel superimposed cut-off valve is provided with a P port, a T port, an A port, a B port and a Y port, each port can independently or simultaneously cut off five oil channels, and the valve is convenient to overhaul and maintain. The multi-oil channel control function greatly improves the flexibility and reliability of the system. The ball valve screw head scale line is perpendicular to the cut-off valve in the normal passing state, and only needs to be turned down by 90° by using a wrench to switch to the cut-off state, without occupying the space of the left and right positions. This setting greatly reduces the assembly space, can realize multi-loop installation in a smaller space, and is particularly suitable for the installation of multiple superimposed valve groups and the non-stop cut-off of oil channels and valve replacement operation.

[0022] 2. The reasonable configuration of the multiple O-rings and the sealing assembly ensures the sealing performance of each interface and key position. For example, the ball valve sealing bowl, the first O-ring, the second O-ring, the third O-ring, the fourth O-ring and the fifth O-ring jointly act to effectively prevent fluid leakage and improve the safety and reliability of the system.

[0023] 3, The utility model discloses a hexagon socket screw and double -end hexagon socket screw's fixed enhancement, the structure stability of cut -off valve makes it still can keep good working performance under the condition of high pressure and high flow. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a novel superimposed cut -off valve explosion structure schematic view of one embodiment of the utility model;

[0025] Figure 2 It is a novel superimposed cut -off valve assembly structure schematic view of one embodiment of the utility model.

[0026] Among them:

[0027] 1, valve body;3, ball valve ball body;4, ball valve sealing bowl;5, ball valve control core;6, first ball valve baffle ring;7, first O -ring;8, second ball valve baffle ring;9, ball valve limiting column pin;10, axle steel wire baffle ring;11, oil port cushion block;12, second O -ring;13, third O -ring;14, ball valve limiting pad;15, fourth O -ring;16, fifth O -ring;17, internal hexagonal screw plug;18, combined gasket;19, DN25 check valve group;20, hexagonal screw;21, double -end hexagonal screw.

[0028] The utility model discloses the realization, functional characteristics and advantages will be further illustrated with reference to the drawings in conjunction with the embodiment. DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein merely serve to explain the present utility model, and do not serve to limit the present utility model.

[0030] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] 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.

[0032] 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.

[0033] Reference Figure 1-Figure 2 , an embodiment of the present utility model provides a new type of superimposed cut-off valve, comprising a valve body 1, wherein the valve body 1 is provided with a pressure port P, a port A, a port B and an oil return port T;

[0034] It also includes a ball valve body 3, a ball valve sealing bowl 4, a ball valve control core shaft 5, a ball valve limit pin 9, a shaft wire retaining ring 10, a fifth O-ring 16, a hexagon socket screw plug 17, a combination washer 18, a hexagon socket screw 20, and a double-headed hexagon socket screw 21;

[0035] The ball valve sealing bowl 4 is installed in the pressure port P, port A and port B to support the ball valve ball 3.

[0036] This embodiment realizes that the valve body 1 is provided with four main interfaces: pressure port P, port A, port B and oil return port T. These interfaces are used to connect different fluid pipelines to meet the needs of different working conditions.

[0037] The ball valve body 3 is the core component of the shut-off valve, responsible for closing or opening the fluid channel. The ball valve sealing bowl 4 is installed in the pressure port P, port A, and port B to provide support for the ball valve body 3 and form a preliminary seal.

[0038] In an optional embodiment, the sealing groove of the ball valve control core shaft 5 is equipped with a first ball valve retaining ring 6 , a first O-ring 7 and a second ball valve retaining ring 8 for achieving sealing and positioning with the ball valve ball 3 .

[0039] It should be noted that the first ball valve retaining ring 6, the first O-ring 7 and the second ball valve retaining ring 8 are installed in the sealing groove of the ball valve control core shaft 5. These components work together to ensure the sealing and accurate positioning between the ball valve ball 3 and the ball valve control core shaft 5.

[0040] In an optional embodiment, the ball valve ball 3 is fixed inside the pressure port P, port A, and port B of the valve body 1 through the ball valve control core shaft 5;

[0041] The rotation stroke is limited by the ball valve limit pin 9 and the shaft wire retaining ring 10.

[0042] It should be noted that the ball valve body 3 is fixed to a corresponding position inside the valve body 1 by the ball valve control core shaft 5. In order to limit the rotation stroke of the ball valve body 3, a ball valve limit pin 9 and a shaft wire retaining ring 10 are used.

[0043] In an optional embodiment, the oil return T-port is equipped with a DN25 one-way valve assembly 19 and an oil port gasket 11;

[0044] A fourth O-ring 15 is provided between the oil port gasket 11 and the oil return T port to ensure a sealing effect.

[0045] It should be noted that a DN25 one-way valve group 19 and an oil port gasket 11 are installed at the oil return T port, and a fourth O-ring 15 is provided between the oil port gasket 11 and the oil return T port to ensure the sealing effect during the oil return process.

[0046] In an optional embodiment, the oil port pad 11 is installed at the pressure port P, port A, and port B of the valve body 1 to fix the ball valve ball 3;

[0047] The oil port gasket 11 is equipped with a second O-ring 12 and a third O-ring 13 to ensure sealing.

[0048] It should be noted that the oil port gasket 11 is not only installed at the pressure P port, A port, and B port of the valve body 1, but is also equipped with a second O-ring 12 and a third O-ring 13, which further strengthens the fixation of the ball valve ball 3 and the sealing between it and the valve body 1.

[0049] In an optional embodiment, a process hole is opened on the valve body 1, and the process hole is sealed by a hexagon socket screw plug 17 and a combination gasket 18 to ensure the sealing performance of the overall structure.

[0050] It should be noted that, in order to facilitate processing, process holes are provided on the valve body 1. After processing, these holes need to be sealed by hexagon socket screw plugs 17 and combination washers 18 to ensure the overall sealing performance of the shut-off valve.

[0051] In an optional embodiment, the hexagon socket screw 20 and the double-headed hexagon socket screw 21 are used to be fixedly installed on the end surface of the valve body 1 to enhance the stability of the equipment.

[0052] It should be noted that the hexagon socket screw 20 and the double-headed hexagon socket screw 21 are used for fixed installation on the end surface of the valve body 1, thereby enhancing the stability and reliability of the shut-off valve.

[0053] In an optional embodiment, the fit between the ball valve ball 3 and the ball valve control core shaft 5 can effectively reduce the resistance when the fluid passes through and improve work efficiency.

[0054] It should be noted that the close fit between the ball valve body 3 and the ball valve control core shaft 5 reduces the resistance when the fluid passes through and improves working efficiency.

[0055] In an optional embodiment, a ball valve limiting pad 14 is provided between the ball valve control core shaft 5 and the ball valve body 3 to control the rotation angle of the ball valve body 3 and ensure that the opening and closing positions of the valve are accurate.

[0056] It should be noted that a ball valve limit pad 14 is provided between the ball valve control core shaft 5 and the ball valve body 3 , which helps to accurately control the rotation angle of the ball valve body 3 and ensure that the valve can operate in the correct opening and closing position.

[0057] In an optional embodiment, the fifth O-ring 16 is installed at the connection between the ball valve control core shaft 5 and the valve body 1 to further improve the sealing performance and prevent fluid leakage.

[0058] It should be noted that the fifth O-ring 16 is installed at the connection between the ball valve control core shaft 5 and the valve body 1, adding an additional sealing barrier to effectively prevent fluid leakage.

[0059] When the shut-off valve is closed, the ball valve body 3 is located in the middle of the valve body 1, blocking the flow path between ports A and B and preventing fluid from flowing. To open the shut-off valve, an external control mechanism, such as a pneumatic or electric actuator, rotates the ball valve control spindle 5. This rotates the ball valve body 3 90 degrees, aligning the through-holes in the ball valve body 3 with ports A and B. This opens the flow path, allowing fluid to enter from port P, pass through ports A and B, and ultimately flow to the downstream pipeline. To close the shut-off valve, the external control mechanism reverses the rotation of the ball valve control spindle 5, rotating the ball valve body 3 90 degrees counterclockwise back to its original position, re-blocking the flow path between ports A and B and preventing fluid from flowing. A DN25 check valve assembly 19 is installed at the oil return port T. When the system needs to relieve pressure or return oil, the DN25 check valve assembly 19 automatically opens, allowing fluid to return to the oil storage tank or other designated location through the oil return port T, ensuring safe system operation.

[0060] The ball valve sealing bowl 4 is installed in the pressure port P, port A, and port B to provide support for the ball valve ball 3 and form a preliminary seal to prevent fluid leakage. The sealing groove of the ball valve control core shaft 5 is equipped with a first ball valve retaining ring 6, a first O-ring 7, and a second ball valve retaining ring 8. These components work together to ensure the seal and accurate positioning between the ball valve ball 3 and the ball valve control core shaft 5. The second O-ring 12 and the third O-ring 13 are installed on the oil port gasket 11 to ensure the seal between the ball valve ball 3 and the valve body 1. The fourth O-ring 15 is installed between the oil port gasket 11 and the return oil T port to ensure the sealing effect during the oil return process. The fifth O-ring 16 is installed at the connection between the ball valve control core shaft 5 and the valve body 1 to further improve the sealing performance and prevent fluid leakage.

[0061] 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 type of superimposed cut-off valve, characterized in that: It comprises a valve body (1), wherein the valve body (1) is provided with a pressure port P, a port A, a port B and an oil return port T; It also includes a ball valve body (3), a ball valve sealing bowl (4), a ball valve control core shaft (5), a ball valve limit pin (9), a shaft wire retaining ring (10), a fifth O-ring (16), a hexagon socket screw plug (17), a combination washer (18), a hexagon socket screw (20), and a double-headed hexagon socket screw (21); The ball valve sealing bowl (4) is installed in the pressure port P, port A and port B to support the ball valve ball (3).

2. The novel superimposed cut-off valve according to claim 1 is characterized in that: The sealing groove of the ball valve control core shaft (5) is equipped with a first ball valve retaining ring (6), a first O-ring (7) and a second ball valve retaining ring (8), which are used to achieve sealing and positioning with the ball valve ball (3).

3. The novel superimposed cut-off valve according to claim 1 is characterized in that: The ball valve ball (3) is fixed inside the pressure port P, port A, and port B of the valve body (1) via the ball valve control core shaft (5); The rotation stroke is limited by the ball valve limit pin (9) and the shaft wire retaining ring (10).

4. The novel superimposed cut-off valve according to claim 1 is characterized in that: The oil return T port is equipped with a DN25 one-way valve group (19) and an oil port gasket (11); A fourth O-ring (15) is provided between the oil port pad (11) and the oil return T port to ensure a sealing effect.

5. The novel superimposed cut-off valve according to claim 4 is characterized in that: The oil port pad (11) is installed at the pressure port P, port A, and port B of the valve body (1) and is used to fix the ball valve ball (3); The oil port pad (11) is equipped with a second O-ring (12) and a third O-ring (13) to ensure sealing.

6. The novel superimposed cut-off valve according to claim 1 is characterized in that: A process hole is provided on the valve body (1), and the process hole is sealed by a hexagon socket screw plug (17) and a combined gasket (18).

7. The novel superimposed cut-off valve according to claim 1 is characterized in that: The hexagon socket screw (20) and the double-headed hexagon socket screw (21) are used for fixed installation on the end surface of the valve body (1).

8. The novel superimposed cut-off valve according to claim 1 is characterized in that: The ball valve ball (3) and the ball valve control core shaft (5) are fitted together.

9. The novel superimposed shut-off valve according to claim 1 is characterized in that: A ball valve limiting pad (14) is provided between the ball valve control core shaft (5) and the ball valve body (3) for controlling the rotation angle of the ball valve body (3).

10. The novel superimposed cut-off valve according to claim 1 is characterized in that: The fifth O-ring (16) is installed at the connection between the ball valve control core shaft (5) and the valve body (1).

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