Electric water valve with constant pressure range

Abstract

The utility model provides a range constant pressure electric water valve, which relates to the technical field of valves and comprises a water inlet pipe and a water outlet pipe which are mutually connected, a partition plate with a communication port is arranged between the water inlet pipe and the water outlet pipe, two ends of the communication port are respectively communicated with the water inlet pipe and the water outlet pipe, and a first cavity facing the communication port is arranged in the water outlet pipe. A first piston capable of blocking the communicating port and located on one side of the water outlet pipe is slidably mounted in the first cavity, a second cavity facing the communicating port is formed in the water inlet pipe, a second piston capable of blocking the communicating port and located on one side of the water inlet pipe is slidably mounted in the second cavity, and the first piston and the second piston are connected through a connecting rod; the range of water pressure circulation can be limited through the two connected pistons, the water valve can be controlled through the range to reduce the problem of water pipe breakage caused by too large water pressure, the service life of the water pipe is prolonged, the reliability of the water pipe is improved, the valve can be conveniently and electrically driven to operate through the driving mechanism, and the using convenience of the valve is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of valves, and in particular to a range constant pressure electric water valve. Background Technology

[0002] Valves are typically used for controlling the flow of liquids and gases. In the coal mining industry, underground water supply provides convenience for personnel. The water pipelines for underground water supply use common manually controlled water valves, which are inconvenient for controlling water pressure. The water pipelines in the mine need to ensure stability, so the pressure inside the water pipeline needs to be controlled. Existing constant pressure water valves can only limit low water pressure and cannot limit high water pressure. Excessive water pressure may affect the stability of the water pipeline connection. Therefore, it is necessary to control the water pressure within a reasonable range. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a range constant pressure electric water valve to solve the problem that constant pressure valves cannot control water pressure within a range.

[0004] Based on the technical problems existing in the background art, this utility model proposes a range constant pressure electric water valve, including an inlet pipe and an outlet pipe connected to each other. A partition with a connecting port is provided between the inlet pipe and the outlet pipe. The two ends of the connecting port are respectively connected to the inlet pipe and the outlet pipe. A first cavity facing the connecting port is provided in the outlet pipe. A first piston that can block the connecting port on the side of the outlet pipe is slidably installed in the first cavity. A second cavity facing the connecting port is provided in the inlet pipe. A second piston that can block the connecting port on the side of the inlet pipe is slidably installed in the second cavity. The first piston and the second piston are connected by a connecting rod.

[0005] Preferably, the gap between the first piston and the second piston is greater than the thickness of the partition, and the movement of the first piston can drive the movement of the second piston.

[0006] Preferably, a bracket is connected to the outside of the water outlet pipe, and a drive mechanism is installed on the bracket. The drive rod of the drive mechanism passes through the outside of the water outlet pipe into the first cavity and is connected to a first abutting plate. A first elastic element is provided in the first cavity, and the two ends of the first elastic element abut against the first abutting plate and the first piston, respectively.

[0007] Preferably, a threaded valve is provided on the outside of the water inlet pipe, and the stud of the threaded valve passes through the outside of the water inlet pipe into the second cavity and is connected to a second abutment plate. A second elastic element is provided in the second cavity, and the two ends of the second elastic element abut against the second abutment plate and the second piston, respectively.

[0008] Preferably, the connecting rod passes through the second piston, allowing the second piston to slide on the connecting rod, and the connecting rod has fixing members at both ends of the second piston to restrict the second piston.

[0009] Compared with the prior art, the range constant pressure electric water valve proposed in this utility model adopts the above technical solution and achieves the following technical effects:

[0010] This invention can limit the range of water pressure flow through two connected pistons, and can reduce the problem of water pipe rupture caused by excessive water pressure by controlling the water valve within the range, thereby improving the service life and reliability of the water pipe. This invention can also conveniently drive the valve to operate electrically through a drive mechanism, thereby improving the ease of use of the valve. Attached Figure Description

[0011] Figure 1 This is a side view of the present invention.

[0012] In the diagram: 1. Inlet pipe; 2. Outlet pipe; 31. Connecting port; 3. Partition; 4. First cavity; 6. First piston; 5. Second cavity; 7. Second piston; 8. Connecting rod; 9. Bracket; 10. Drive mechanism; 101. Drive rod; 11. First contact plate; 12. First elastic element; 13. Threaded valve; 131. Stud; 14. Second contact plate; 15. Second elastic element; 81. Fixing element. Detailed Implementation

[0013] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0014] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0015] Example

[0016] Please refer to Figure 1This utility model proposes a range-constant pressure electric water valve, including an inlet pipe 1 and an outlet pipe 2 connected to each other. A partition 3 with a connecting port 31 is provided between the inlet pipe 1 and the outlet pipe 2. The two ends of the connecting port 31 are respectively connected to the inlet pipe 1 and the outlet pipe 2. A first cavity 4 is provided in the outlet pipe 2 facing the connecting port 31. A first piston 6, which can block the connecting port 31 on the side of the outlet pipe 2, is slidably installed in the first cavity 4. A second cavity 5 is provided in the inlet pipe 1 facing the connecting port 31. A second piston 7, which can block the connecting port 31 on the side of the inlet pipe 1, is slidably installed in the second cavity 5. The first piston 6 and the second piston 7 are connected by a connecting rod 8. In this design, the connection between the first piston 6 and the second piston 7 forms a whole. When the water pressure is low, the water pressure will be too great for the first piston 6, and the connection port 31 will be closed by the first piston 6, so the whole will be in a closed state. When the water pressure is greater than the weight of the first piston 6 and the second piston 7, neither the first piston 6 nor the second piston 7 will block the connection port 31, so the whole will be in an open state. When the water pressure is too great, it will push the second piston 7 to close the connection port 31, which can prevent the water pipe from breaking or being damaged due to excessive water pressure.

[0017] In a specific embodiment, refer to Figure 1 The gap between the first piston 6 and the second piston 7 is greater than the thickness of the partition plate 3. The movement of the first piston 6 can drive the movement of the second piston 7. In this scheme, the pressure range is affected by the gap between the two pistons. The larger the gap between the two pistons, the larger the range of the maximum and minimum water pressure, and the larger the controllable range of water pressure, which can improve the range of water pressure that the water valve can adapt to.

[0018] In a specific embodiment, refer to Figure 1 A bracket 9 is connected to the outside of the water outlet pipe 2. A drive mechanism 10 is installed on the bracket 9. The drive rod 101 of the drive mechanism 10 passes through the outside of the water outlet pipe 2 into the first cavity 4 and is connected to the first contact plate 11. A first elastic element 12 is provided in the first cavity 4. The two ends of the first elastic element 12 abut against the first contact plate 11 and the first piston 6, respectively. In this scheme, the water pressure only needs to overcome the weight of the piston to deliver water flow. However, the weight of the piston is fixed. In order to change the pressure of the water flow when the device is opened, it can be operated by the drive mechanism 10. The drive mechanism 10 can drive the drive rod 101 to move closer to or away from the first piston 6. Then the elastic force of the first elastic element 12 will change, and the minimum value of the water flow through the connecting port 31 will change.

[0019] In a specific embodiment, refer to Figure 1A threaded valve 13 is installed on the outside of the water inlet pipe 1. The stud 131 of the threaded valve 13 passes through the outside of the water inlet pipe 1 into the second cavity 5 and is connected to the second abutment plate 14. A second elastic element 15 is installed in the second cavity 5. The two ends of the second elastic element 15 abut against the second abutment plate 14 and the second piston 7, respectively. In this scheme, the threaded valve 13 plays an auxiliary role. It is manual and can be blocked from the water inlet end of the connection port 31 to make the valve closing stable. Secondly, when the water pressure is too low and the minimum passing water pressure is set too high, the water pressure is not enough to push the piston to achieve connection. The threaded valve 13 can be manually turned to assist the water flow to push the piston to achieve the connection, that is, reduce the minimum passing water pressure threshold, but the maximum water pressure threshold remains unchanged. However, when the water pressure gradually increases, the second elastic element 15 will not contact the second piston 7. That is, the water pressure will directly overcome the weight of the piston and the elastic force of the first elastic element 12, thereby achieving the maximum limitation of water pressure.

[0020] In a specific embodiment, refer to Figure 1 The connecting rod 8 passes through the second piston 7, allowing the second piston 7 to slide on the connecting rod 8. Fixing members 81 that restrict the second piston 7 are fixed at both ends of the connecting rod 8. In this scheme, the two fixing members 81 are used to restrict the position of the second piston 7 on the connecting rod 8, which can change the interval between the first piston 6 and the second piston 7, and can change the range of the maximum flow water pressure and the minimum flow water valve.

[0021] 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 range constant pressure electric water valve characterized by, The utility model provides a water purifier, including interconnect's inlet pipe (1) and outlet pipe (2), be provided with the baffle (3) with the communicating port (31) between inlet pipe (1) and outlet pipe (2), and the both ends of communicating port (31) communicate with inlet pipe (1) and outlet pipe (2) respectively, be provided with the first cavity (4) of outlet pipe (2) towards communicating port (31), first cavity (4) in sliding installation can block up the first piston (6) of communicating port (31) located outlet pipe (2) one side, be provided with the second cavity (5) of inlet pipe (1) towards communicating port (31), second cavity (5) in sliding installation can block up the second piston (7) of communicating port (31) located inlet pipe (1) one side, first piston (6) and second piston (7) between through connecting rod (8) connection.

2. The range constant pressure electric water valve according to claim 1, wherein, The interval between the first piston (6) and the second piston (7) is greater than the thickness of the baffle (3), and the movement of the first piston (6) can drive the movement of the second piston (7).

3. The range constant pressure electric water valve according to claim 1, wherein, The outer side of the outlet pipe (2) is connected with a support (9), and the driving mechanism (10) is installed on the support (9). The driving rod (101) of the driving mechanism (10) penetrates from the outside of the outlet pipe (2) into the first cavity (4) and is connected with the first abutting plate (11). The first elastic member (12) is arranged in the first cavity (4), and the two ends of the first elastic member (12) abut against the first abutting plate (11) and the first piston (6) respectively.

4. The range constant pressure electric water valve of claim 1, wherein, The outer side of the inlet pipe (1) is provided with a threaded valve (13), the threaded rod (131) of the threaded valve (13) penetrates from the outside of the inlet pipe (1) into the second cavity (5) and is connected with the second abutting plate (14). The second elastic member (15) is arranged in the second cavity (5), and the two ends of the second elastic member (15) abut against the second abutting plate (14) and the second piston (7) respectively.

5. The range constant pressure electric water valve of claim 1, wherein, The connecting rod (8) penetrates the second piston (7) to make the second piston (7) and the connecting rod (8) slide. The fixed member (81) for limiting the second piston (7) is fixed on the both ends of the connecting rod (8) located on the both sides of the second piston (7).

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