Valve bank structure

Abstract

The utility model discloses a valve group structure, which relates to the technical field of valves, and comprises a communication valve block, a hydraulic cylinder, a magnetostrictive displacement sensor and a controller, an inlet channel and an outlet channel penetrate through the communication valve block, and the inlet channel and the outlet channel intersect and are communicated to form a valve port; a piston of the hydraulic cylinder penetrates into the outlet channel from the valve element installation end and is connected with a sealing pin shaft, and the piston of the hydraulic cylinder can drive the sealing pin shaft to open or close the valve port. A measuring rod of the magnetostrictive displacement sensor is arranged in a piston of the hydraulic cylinder in a penetrating mode, a magnetic ring of the magnetostrictive displacement sensor is arranged on the measuring rod of the magnetostrictive displacement sensor in a sleeving mode and connected with the piston of the hydraulic cylinder, and the magnetostrictive displacement sensor is used for detecting displacement of the piston of the hydraulic cylinder; the hydraulic cylinder and the magnetostriction displacement sensor are both connected with a controller, and the controller is used for adjusting the displacement of a piston of the hydraulic cylinder so as to adjust the position of the sealing pin shaft in the valve port.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve group structure. Background Art

[0002] Water valves are mainly used to realize the switching function of water circuits, and hydraulic valves are mainly used to realize the switching function of oil circuits. At present, most of them are manual valves or electromagnetic valves.

[0003] Among them, the advantages of manual valves are simple structure and low price, but their obvious disadvantage is that their usage scenarios are limited. Manual operation and flow accuracy control cannot be achieved in many equipment or test schemes; the advantage of electromagnetic valves is that they can automatically control the opening and closing of the valves, and they are safe and cost-effective, but they cannot rely on their own structure to control the flow; and although the servo valve can accurately control the output flow through voltage or current signals, its structure is complex and the requirements for the valve group and the medium are too high. Most of them can only be used in hydraulic systems, and their usage scenarios are also limited.

[0004] At the same time, the above-mentioned valve products cannot be used in ultra-gravity environments with high g values, nor can they be used in simulated extreme environments. Utility Model Content

[0005] The purpose of the utility model is to provide a valve group structure to solve the problems existing in the above-mentioned prior art. It can not only control the flow rate through its own structure, but also adapt to various working conditions and usage scenarios, and can be used in a high-g ultra-gravity environment.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a valve group structure, including a connecting valve block, a hydraulic cylinder, a magnetostrictive displacement sensor and a controller, wherein an inlet channel and an outlet channel are penetrated in the connecting valve block, and the inlet channel intersects and connects with the outlet channel to form a valve port, one end of the inlet channel is a medium inlet, and the other end is closed, one end of the outlet channel is a medium outlet, and the other end is a valve core installation end; the hydraulic cylinder is arranged at a position on the connecting valve block close to the valve core installation end, the piston of the hydraulic cylinder penetrates into the outlet channel from the valve core installation end, and is connected with a sealing pin shaft, and the piston of the hydraulic cylinder can drive The sealing pin shaft opens or closes the valve port; the magnetostrictive displacement sensor is arranged on the hydraulic cylinder, and the measuring rod of the magnetostrictive displacement sensor is penetrated in the piston of the hydraulic cylinder, the magnetic ring of the magnetostrictive displacement sensor is sleeved on the measuring rod of the magnetostrictive displacement sensor and connected to the piston of the hydraulic cylinder, and the magnetostrictive displacement sensor is used to detect the displacement of the piston of the hydraulic cylinder; the hydraulic cylinder and the magnetostrictive displacement sensor are both connected to the controller, and the controller is used to adjust the displacement of the piston of the hydraulic cylinder to adjust the position of the sealing pin shaft in the valve port.

[0008] Preferably, a hydraulic cylinder sealing ring is provided between the hydraulic cylinder and the valve core mounting end of the communicating valve block.

[0009] Preferably, a pin sealing ring is provided between one end of the sealing pin away from the valve port and the outlet channel.

[0010] Preferably, one end of the sealing pin shaft close to the valve port is a tapered end, and a side of the valve port close to the medium outlet is provided with a tapered surface, and the tapered end of the sealing pin shaft can fit with the tapered surface.

[0011] Preferably, the connecting valve block is a T-shaped block, the inlet channel penetrates the transverse structure of the T-shaped block, and the outlet channel penetrates the vertical structure of the T-shaped block.

[0012] Preferably, the hydraulic cylinder is fixedly connected to the valve core mounting end of the connecting valve block via a plurality of connecting screws.

[0013] Preferably, the valve group structure further comprises a plug, and the plug can be sealed at an end of the inlet channel away from the medium inlet.

[0014] Preferably, the plug is a hexagonal plug.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The valve group structure provided by the utility model comprises a connecting valve block, a hydraulic cylinder, a magnetostrictive displacement sensor and a controller. An inlet channel and an outlet channel are penetrated in the connecting valve block, and the inlet channel and the outlet channel intersect and are connected to form a valve port. The reciprocating motion of the piston of the hydraulic cylinder can drive the sealing pin shaft in the connecting valve block to open or close the valve port. The displacement of the piston of the hydraulic cylinder can be detected by the magnetostrictive displacement sensor. Before use, the relationship between the displacement of the piston of the hydraulic cylinder and the flow rate flowing through the valve group structure can be obtained by calibrating the external flow sensor and the magnetostrictive displacement sensor. When in use, the medium inlet and the medium outlet of the valve group structure are aligned with the corresponding Pipeline connection. When the medium passage needs to be cut off, the piston of the hydraulic cylinder moves toward the valve port, driving the sealing pin to close the valve port; when the medium passage needs to be opened, the piston of the hydraulic cylinder moves away from the valve port, driving the sealing pin to open the valve port; when the flow of the medium passage needs to be adjusted, the controller adjusts the displacement of the hydraulic cylinder piston according to the displacement of the hydraulic cylinder piston detected by the magnetostrictive displacement sensor to adjust the position of the sealing pin in the valve port, thereby realizing flow control through its own structure, adapting to a variety of working conditions and usage scenarios, and being able to be used in a high-g value ultra-gravity environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a valve group structure provided in an embodiment of the utility model;

[0019] Figure 2 A cross-sectional view of a valve group structure provided in an embodiment of the utility model;

[0020] Figure 3 A cross-sectional schematic diagram of a valve group structure provided by an embodiment of the utility model with the valve port fully closed;

[0021] Figure 4 A cross-sectional schematic diagram of a valve group structure provided by an embodiment of the utility model with the valve port fully opened;

[0022] Figure 5 A schematic cross-sectional view of a valve port of a valve group structure provided in an embodiment of the utility model at any opening degree.

[0023] In the figure: 100-valve group structure, 1-connecting valve block, 101-medium inlet, 102-medium outlet, 2-hydraulic cylinder, 201-piston, 202-hydraulic cylinder sealing ring, 203-connecting screw, 3-magnetostrictive displacement sensor, 301-measuring rod, 302-magnetic ring, 4-sealing pin shaft, 401-pin shaft sealing ring, 5-plug. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The purpose of the utility model is to provide a valve group structure to solve the problems existing in the prior art. It can not only control the flow rate through its own structure, but also adapt to various working conditions and usage scenarios, and can be used in a high-g ultra-gravity environment.

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] like Figure 1-Figure 2 As shown, this embodiment provides a valve group structure 100, including a connecting valve block 1, a hydraulic cylinder 2, a magnetostrictive displacement sensor 3 and a controller. The connecting valve block 1 is penetrated with an inlet channel and an outlet channel, and the inlet channel and the outlet channel intersect and are connected to form a valve port, one end of the inlet channel is a medium inlet 101, and the other end is closed, one end of the outlet channel is a medium outlet 102, and the other end is a valve core installation end; the hydraulic cylinder 2 is arranged on the connecting valve block 1 at a position close to the valve core installation end, the piston 201 of the hydraulic cylinder 2 penetrates into the outlet channel from the valve core installation end, and is connected with a sealing pin shaft 4, and the piston 201 of the hydraulic cylinder 2 can Drive the sealing pin 4 to open or close the valve port; the magnetostrictive displacement sensor 3 is arranged on the hydraulic cylinder 2, and the measuring rod 301 of the magnetostrictive displacement sensor 3 is penetrated in the piston 201 of the hydraulic cylinder 2, the magnetic ring 302 of the magnetostrictive displacement sensor 3 is sleeved on the measuring rod 301 of the magnetostrictive displacement sensor 3 and connected to the piston 201 of the hydraulic cylinder 2, and the magnetostrictive displacement sensor 3 is used to detect the displacement of the piston 201 of the hydraulic cylinder 2; the hydraulic cylinder 2 and the magnetostrictive displacement sensor 3 are both connected to the controller, and the controller is used to adjust the displacement of the piston 201 of the hydraulic cylinder 2 to adjust the position of the sealing pin 4 in the valve port.

[0028] Before use, the relationship between the displacement of the piston 201 of the hydraulic cylinder 2 and the flow rate flowing through the valve group structure 100 can be obtained by calibrating the external flow sensor and the magnetostrictive displacement sensor 3; when in use, the medium inlet 101 and the medium outlet 102 of the valve group structure 100 are connected to the corresponding pipelines. When the medium passage needs to be cut off, the piston 201 of the hydraulic cylinder 2 moves downward, driving the sealing pin shaft 4 to move downward, such as Figure 3 As shown, the valve port is closed; when the medium passage needs to be opened, the piston 201 of the hydraulic cylinder 2 moves upward, driving the sealing pin 4 to move upward, as shown Figure 4 As shown, the valve port is opened; when the flow of the medium passage needs to be adjusted, the displacement of the piston 201 of the hydraulic cylinder 2 is adjusted by the controller according to the displacement of the piston 201 of the hydraulic cylinder 2 detected by the magnetostrictive displacement sensor 3, so as to adjust the position of the sealing pin shaft 4 in the valve port, that is, Figure 5 As shown, the sealing pin shaft 4 can be adjusted to any position in the valve port so that the valve port maintains the required opening, thereby achieving flow control through its own structure, adapting to a variety of working conditions and usage scenarios, and being able to be used in a high-g ultra-gravity environment.

[0029] In this embodiment, a hydraulic cylinder sealing ring 202 is provided between the hydraulic cylinder 2 and the valve core installation end of the communicating valve block 1 to ensure the end surface sealing of the hydraulic cylinder 2 .

[0030] In this embodiment, a pin seal ring 401 is provided between the end of the sealing pin 4 away from the valve port and the outlet passage to ensure radial sealing of the sealing pin 4 .

[0031] In this embodiment, the end of the sealing pin 4 close to the valve port is a tapered end, and a tapered surface is provided on the side of the valve port close to the medium outlet 102. The tapered end of the sealing pin 4 can fit with the tapered surface to ensure that when the sealing pin 4 closes the valve port, the medium will not flow out from the medium outlet 102 at one end of the outlet channel. In addition, the double-layer seal formed by the above-mentioned hydraulic cylinder sealing ring 202 and the pin sealing ring 401 also ensures that the medium will not flow out from the other end of the outlet channel.

[0032] In this embodiment, the connecting valve block 1 is a T-shaped block, the inlet channel penetrates the transverse structure of the T-shaped block, and the outlet channel penetrates the vertical structure of the T-shaped block.

[0033] In this embodiment, the hydraulic cylinder 2 is fixedly connected to the valve core mounting end of the connecting valve block 1 through a plurality of connecting screws 203; during installation, the hydraulic cylinder 2, the magnetic ring 302, the magnetostrictive displacement sensor 3, the sealing pin 4 and the pin sealing ring 401 are installed as one component, and then only the connecting valve block 1 needs to be connected to the above components through the connecting screws 203, which is convenient for subsequent disassembly and cleaning.

[0034] In this embodiment, the valve group structure 100 further includes a plug 5 , which can block an end of the inlet channel away from the medium inlet 101 .

[0035] In this embodiment, the plug 5 is a hexagonal plug.

[0036] In summary, the valve group structure 100 is particularly suitable for water conservancy and hydropower engineering, geotechnical and rock engineering, and ultra-gravity testing engineering. It is not only simple in design, but also easy to install, highly versatile, and can adapt to a variety of working conditions and usage scenarios. The valve group structure 100 solves the problem of the use of valves affected by different media and media quality, the problem of usage scenarios in ultra-gravity environments with high g values, and the problem of difficulty in controlling the opening of the valve through its own structure to accurately control the flow rate. It has the advantages of simple structure, low processing difficulty, wide range of use, and high plug-in and pull-out force, and is suitable for promotion and application.

[0037] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A valve group structure, characterized in that: The invention comprises a connecting valve block, a hydraulic cylinder, a magnetostrictive displacement sensor and a controller. The connecting valve block is provided with an inlet channel and an outlet channel, and the inlet channel intersects and connects with the outlet channel to form a valve port. One end of the inlet channel is a medium inlet, and the other end is closed. One end of the outlet channel is a medium outlet, and the other end is a valve core installation end. The hydraulic cylinder is arranged at a position on the connecting valve block close to the valve core installation end. The piston of the hydraulic cylinder penetrates into the outlet channel from the valve core installation end and is connected with a sealing pin shaft. The piston of the hydraulic cylinder can drive the sealing pin shaft to open and close the valve core. The magnetostrictive displacement sensor is provided on the hydraulic cylinder, and the measuring rod of the magnetostrictive displacement sensor is penetrated in the piston of the hydraulic cylinder. The magnetic ring of the magnetostrictive displacement sensor is sleeved on the measuring rod of the magnetostrictive displacement sensor and connected with the piston of the hydraulic cylinder. The magnetostrictive displacement sensor is used to detect the displacement of the piston of the hydraulic cylinder. The hydraulic cylinder and the magnetostrictive displacement sensor are both connected with the controller. The controller is used to adjust the displacement of the piston of the hydraulic cylinder to adjust the position of the sealing pin shaft in the valve port.

2. The valve group structure according to claim 1, characterized in that: A hydraulic cylinder sealing ring is arranged between the hydraulic cylinder and the valve core mounting end of the communicating valve block.

3. The valve group structure according to claim 1, characterized in that: A pin seal ring is arranged between one end of the sealing pin away from the valve port and the outlet channel.

4. The valve group structure according to claim 1, characterized in that: One end of the sealing pin shaft close to the valve port is a tapered end, and a side of the valve port close to the medium outlet is provided with a tapered surface, and the tapered end of the sealing pin shaft can fit with the tapered surface.

5. The valve group structure according to claim 1, characterized in that: The communication valve block is a T-shaped block, the inlet channel penetrates the transverse structure of the T-shaped block, and the outlet channel penetrates the vertical structure of the T-shaped block.

6. The valve group structure according to claim 1, characterized in that: The hydraulic cylinder is fixedly connected to the valve core mounting end of the communication valve block through a plurality of connecting screws.

7. The valve group structure according to claim 1, characterized in that: The valve group structure further comprises a plug, which can be sealed at an end of the inlet channel away from the medium inlet.

8. The valve group structure according to claim 7, characterized in that: The plug is a hexagonal plug.

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