A multi-way valve based on piezoelectric drive

Abstract

The utility model relates to multi -way valve technical field, and disclose a kind of multi -way valve based on piezoelectric drive. Including valve body, the lateral wall of valve body is fixedly connected with piezoelectric drive controller, the upper of valve body is equipped with first connecting pipe, the below of valve body is equipped with multiple second connecting pipes. The utility model provides when fluid pressure is abnormal in second connecting pipe, fluid pressure will act on elastic rubber ring, push elastic rubber ring and extrude to connecting ring direction, the fixed pressure block of one side elastic rubber ring moves along, the pressure sensor of protective pressure pad on pressure block will extrude connecting ring inner wall, pressure sensor will transmit pressure signal to driver, if pressure value exceeds preset safety range, driver will immediately control the alarm of second connecting pipe lateral wall connecting block and issue sound and light alarm, remind operator to promptly troubleshoot fault, guarantee the safe operation of valve and subsequent pipeline.

Description

Technical Field

[0001] This utility model relates to the field of multi-way valve technology, and in particular to a multi-way valve based on piezoelectric drive. Background Technology

[0002] Multi-way valves are valves with three or more flow channel interfaces. Their core function is to achieve fluid path switching, diversion, and merging control through the rotation or movement of the valve core. They are suitable for scenarios that require flexible fluid distribution, such as hydraulic systems, chemical pipelines, and HVAC systems. Compared with single-way and two-way valves, they can reduce the number of pipeline joints and valves, and simplify the system structure.

[0003] In existing technologies, during the use of piezoelectrically driven multi-way valves, if high pressure at the valve interface cannot be detected in time, it will cause wear at the interface connection, affecting the valve's service life and the control accuracy of the piezoelectric actuator over the multi-way valve. Therefore, this utility model designs a piezoelectrically driven multi-way valve. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a piezoelectric-driven multi-way valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A piezoelectric-driven multi-way valve includes a valve body, a piezoelectric drive controller fixedly connected to the side wall of the valve body, a first connecting pipe above the valve body, and multiple second connecting pipes below the valve body. Two retaining rings are fixedly connected to the inner wall of each of the second connecting pipes, and a connecting ring is fixedly connected at the gap between the two retaining rings. Elastic rubber rings are also provided on the inner walls of the two retaining rings. An actuator is fixedly connected to the bottom of the valve body. A connecting block is fixedly connected to the side wall of each of the second connecting pipes, and a pressure sensor is fixedly provided on the inner wall of the connecting ring.

[0007] Preferably, the cross-section of the elastic rubber ring is arc-shaped.

[0008] Preferably, an alarm is fixedly connected to the side of the connecting block opposite to the second connecting pipe, and the pressure sensor and the alarm are electrically connected to the driver respectively.

[0009] Preferably, a pressure block is fixedly connected to one side of the elastic rubber ring relative to the pressure sensor.

[0010] Preferably, a protective pressure pad is fixedly connected to the side of the pressure block away from the elastic rubber ring, and the edge of the protective pressure pad is set as an arc surface.

[0011] Preferably, the elastic rubber ring has insert rings fixedly connected to the side walls at both ends, and the inner walls of the two retaining rings are respectively provided with annular slots, with the insert rings inserted into the inner walls of the annular slots.

[0012] Compared with the prior art, this utility model provides a multi-way valve based on piezoelectric actuation, which has the following advantages:

[0013] 1. This piezoelectric-driven multi-way valve works by applying pressure to an elastic rubber ring when the fluid pressure in the second connecting pipe is abnormal. This pressure pushes the elastic rubber ring towards the connecting ring, causing a pressure block fixed on one side of the elastic rubber ring to move along with it. The protective pressure pad on the pressure block presses against the pressure sensor on the inner wall of the connecting ring. The pressure sensor transmits the pressure signal to the actuator. If the pressure value exceeds the preset safety range, the actuator will immediately control the alarm on the connecting block on the side wall of the second connecting pipe to issue an audible and visual alarm, reminding the operator to troubleshoot the fault in time and ensuring the safe operation of the valve and subsequent pipelines.

[0014] 2. This piezoelectric-driven multi-way valve is electrically connected to the control valve core inside the valve body through a piezoelectric drive controller. When it is necessary to open the flow channel of a certain second connecting pipe, the piezoelectric drive controller sends a signal to the corresponding control valve core. The control valve core drives the opening and closing, which can piezoelectrically drive the second connecting pipe to switch.

[0015] 3. This piezoelectrically driven multi-way valve uses the insert rings at both ends of the elastic rubber ring to be inserted into the annular slots on the inner wall of the retaining ring. This fixes the installation position of the elastic rubber ring, preventing it from shifting during deformation or reset, and ensuring the reliability of sealing and switching. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a piezoelectric-driven multi-way valve proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0018] Figure 3 for Figure 2 Three-dimensional view of the structure of the medium-pressure block.

[0019] In the diagram: 1 Valve body, 2 Piezoelectric drive controller, 3 First connecting pipe, 4 Second connecting pipe, 5 Retaining ring, 6 Connecting ring, 7 Elastic rubber ring, 8 Driver, 9 Connecting block, 10 Pressure sensor, 11 Alarm, 12 Pressure block, 13 Protective pressure pad, 14 Insert ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1

[0022] Reference Figure 1-3 A piezoelectric-driven multi-way valve includes a valve body 1, a piezoelectric drive controller 2 fixedly connected to the side wall of the valve body 1, a first connecting pipe 3 above the valve body 1, and multiple second connecting pipes 4 below the valve body 1. Two retaining rings 5 ​​are fixedly connected to the inner wall of the second connecting pipes 4, and a connecting ring 6 is fixedly connected at the gap between the two retaining rings 5. Elastic rubber rings 7 are also provided on the inner walls of the two retaining rings 5. An actuator 8 is fixedly connected to the bottom of the valve body 1. A connecting block 9 is fixedly connected to the side wall of the second connecting pipes 4. A pressure sensor 10 is fixedly provided on the inner wall of the connecting ring 6. The cross-section of the elastic rubber ring 7 is arc-shaped. An alarm 11 is fixedly connected to the side of the connecting block 9 away from the second connecting pipes 4. The pressure sensor 10 and the alarm 11 are electrically connected to the actuator 8.

[0023] A pressure block 12 is fixedly connected to one side of the elastic rubber ring 7 relative to the pressure sensor 10, and a protective pressure pad 13 is fixedly connected to the other side of the pressure block 12 away from the elastic rubber ring 7. The edge of the protective pressure pad 13 is set as an arc surface.

[0024] The valve body 1 is the core load-bearing structure. The first connecting pipe 3 at the top is used to connect to the main fluid, and the multiple second connecting pipes 4 at the bottom are used for diversion and transportation to realize the multi-channel function. The two retaining rings 5 ​​on the inner wall of the second connecting pipe 4 provide the installation and fixing foundation for the middle connecting ring 6, and at the same time, they work with the elastic rubber ring 7 to realize pressure monitoring in the flow channel.

[0025] The piezoelectric drive controller 2 is electrically connected to the control valve core inside the valve body 1. When it is necessary to open the flow channel of a certain second connecting pipe 4, the piezoelectric drive controller 2 sends a signal to the corresponding control valve core. The control valve core can drive the opening and closing of the second connecting pipe 4 to perform piezoelectric drive switching.

[0026] When the fluid pressure inside the second connecting pipe 4 is abnormal, the fluid pressure will act on the elastic rubber ring 7, pushing the elastic rubber ring 7 to squeeze towards the connecting ring 6. The pressure block 12 fixed on one side of the elastic rubber ring 7 will move along with it. The protective pressure pad 13 on the pressure block 12 will squeeze the pressure sensor 10 on the inner wall of the connecting ring 6. The pressure sensor 10 will transmit the pressure signal to the driver 8. If the pressure value exceeds the preset safety range, the driver 8 will immediately control the alarm 11 on the connecting block 9 on the side wall of the second connecting pipe 4 to issue an audible and visual alarm, reminding the operator to troubleshoot the fault in time and ensure the safe operation of the valve and subsequent pipelines. The edge of the protective pressure pad 13 is set as a curved surface to avoid scratching the parts.

[0027] Example 2

[0028] Reference Figure 1-3 The elastic rubber ring 7 has two end side walls fixedly connected with insert rings 14 respectively, and the inner walls of the two retaining rings 5 ​​are respectively provided with annular slots, and the insert rings 14 are inserted into the inner walls of the annular slots.

[0029] The insert rings 14 at both ends of the elastic rubber ring 7 are inserted into the annular slots on the inner wall of the retaining ring 5, which can fix the installation position of the elastic rubber ring 7, prevent it from shifting during deformation or reset, and ensure the reliability of sealing and switching.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A piezoelectrically driven multi-port valve, comprising a valve body (1), characterized in that: A piezoelectric drive controller (2) is fixedly connected to the side wall of the valve body (1). A first connecting pipe (3) is provided above the valve body (1). A plurality of second connecting pipes (4) are provided below the valve body (1). Two retaining rings (5) are fixedly connected to the inner wall of the second connecting pipe (4). A connecting ring (6) is fixedly connected at the gap between the two retaining rings (5). An elastic rubber ring (7) is provided on the inner wall of the two retaining rings (5). An actuator (8) is fixedly connected to the bottom of the valve body (1). A connecting block (9) is fixedly connected to the side wall of the second connecting pipe (4). A pressure sensor (10) is fixedly provided on the inner wall of the connecting ring (6).

2. A piezoelectrically driven multi-way valve according to claim 1, characterized in that: The cross-section of the elastic rubber ring (7) is set to be arc-shaped.

3. A piezoelectrically driven multi-way valve according to claim 1, characterized in that: An alarm (11) is fixedly connected to the side of the connecting block (9) away from the second connecting pipe (4), and the pressure sensor (10) and the alarm (11) are electrically connected to the driver (8) respectively.

4. A piezoelectrically driven multi-way valve according to claim 1, characterized in that: The elastic rubber ring (7) is fixedly connected to a pressure block (12) on one side relative to the pressure sensor (10).

5. A piezoelectrically driven multi-way valve according to claim 4, characterized in that: The pressure block (12) is fixedly connected to a protective pressure pad (13) on one side away from the elastic rubber ring (7), and the edge of the protective pressure pad (13) is set as an arc surface.

6. A piezoelectrically driven multi-way valve according to claim 1, characterized in that: The elastic rubber ring (7) has two end side walls fixedly connected with insert rings (14), and the inner walls of the two retaining rings (5) are respectively provided with annular slots, and the insert rings (14) are inserted into the inner walls of the annular slots.

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