Constant-water-level electric valve controller

Abstract

The utility model discloses a constant water level electric valve controller, which relates to the technical field of drainage pipeline silting and washing, and comprises a live wire, a zero wire and a connecting wire for connecting the live wire and the zero wire, an electric valve for controlling a flushing water tank to drain water is arranged on the connecting wire, a single-pole switch is arranged on the connecting wire, and the single-pole switch is arranged in the flushing water tank. The single-pole switch is provided with a moving contact and a static contact, a first buoyancy structure and a second buoyancy structure are movably arranged in the flushing water tank, the second buoyancy structure and the moving contact are fixedly connected through a connecting rope, and at the first water level, the first buoyancy structure floats upwards and can abut against the moving contact and enable the moving contact to be wedged with the static contact; and at the second water level, the second buoyancy structure sinks, and the second buoyancy structure can drive the moving contact to move through the connecting rope and enable the moving contact to be separated from the static contact. The constant-water-level electric valve controller can achieve the purpose of emptying the flushing water tank at the constant water level.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipeline siltation and scouring, in particular to a constant water level electric valve controller. Background Art

[0002] Most urban drainage pipelines are gravity flow pipelines, and the pipeline diameter is designed according to the maximum design flow rate. In most cases, the water flow velocity in the pipeline is small, and the concentration of suspended solids in the drainage is high, which is extremely easy to cause pipeline siltation and blockage. As a result, the following problems exist: Pipeline siltation causes the drainage capacity of the pipeline to decrease, resulting in waterlogging or too low influent concentration of the sewage treatment plant; Pipeline siltation and blockage lead to anaerobic reactions of the silt in the pipeline, generating odoriferous and combustible gases such as methane and hydrogen sulfide, affecting the urban environment and posing an explosion risk. Therefore, it is necessary to dredge the pipeline. During the dredging process, a flushing water tank is often used, and whether the flushing water tank is emptied or discharges most of the stored water at the set water level directly affects the effect of pipeline dredging. Therefore, how to empty or discharge most of the stored water in the flushing water tank at the set water level has become an urgent problem to be solved at present. Content of the Utility Model

[0003] The purpose of the utility model is to provide a constant water level electric valve controller to solve the problems existing in the above-mentioned prior art and achieve the purpose of emptying the flushing water tank at a constant water level.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] The utility model provides a constant water level electric valve controller, including a live wire, a neutral wire and a connecting wire for connecting the live wire and the neutral wire. An electric valve for controlling the drainage of the flushing water tank is arranged on the connecting wire. A single-pole switch is arranged on the connecting wire, and the single-pole switch is arranged inside the flushing water tank. The single-pole switch has a moving contact and a static contact. A first buoyancy structure and a second buoyancy structure are movably arranged in the flushing water tank. The second buoyancy structure is fixedly connected to the moving contact through a connecting rope. At the first water level, the first buoyancy structure floats, and the first buoyancy structure can abut against the moving contact and wedge the moving contact and the static contact together. At the second water level, the second buoyancy structure sinks, and the second buoyancy structure can drive the moving contact to move through the connecting rope and separate the moving contact and the static contact.

[0006] Preferably, a bracket is arranged in the flushing water tank, and a first guide rail is arranged on the bracket. The first buoyancy structure includes a first connecting rod slidably connected to the first guide rail and a first floating cylinder fixedly arranged at the bottom of the first connecting rod. A limiting part for preventing the first connecting rod from disengaging from the first guide rail is arranged on the first connecting rod, and the first connecting rod can abut against the moving contact.

[0007] Preferably, a second guide rail is further provided on the bracket. The second buoyancy structure includes a second connecting rod slidably connected to the second guide rail and a second floating cylinder fixedly provided at the bottom of the second connecting rod. The top end of the second connecting rod is fixedly connected to the moving contact through the connecting rope.

[0008] Preferably, a time-delay disconnection relay is provided on a part of the connecting wire between the single-pole switch and the electric valve.

[0009] The utility model has achieved the following technical effects compared with the prior art:

[0010] For the fixed-water-level electric valve controller provided by the utility model, when the water stored in the flushing water tank reaches the first water level, the first buoyancy structure can float up and abut against the moving contact to push the moving contact to move until the moving contact is wedged with the static contact, so that the electric valve is powered on and the flushing water tank starts to drain water. When the water stored in the flushing water tank is drained to the second water level, the second buoyancy structure can sink, and the moving contact is pulled to move through the connecting rope until the moving contact is separated from the static contact, so that the electric valve is powered off and the flushing water tank stops draining water, thereby achieving the purpose of emptying the flushing water tank at a fixed water level. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 It is a schematic structural diagram of the fixed-water-level electric valve controller provided by the present utility model;

[0013] In the figure: 1 - live wire; 2 - neutral wire; 3 - connecting wire; 4 - single-pole switch; 5 - time-delay disconnection relay; 6 - electric valve; 7 - bracket; 8 - first guide rail; 9 - second guide rail; 10 - first floating cylinder; 11 - first connecting rod; 12 - limiting part; 13 - second floating cylinder; 14 - second connecting rod; 15 - connecting rope. Detailed Embodiments

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0015] The purpose of the present utility model is to provide a constant water level electric valve controller to solve the problems existing in the prior art and achieve the purpose of emptying the flushing water tank at a constant water level.

[0016] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] The present utility model provides a constant water level electric valve controller, as Figure 1 shown, including a live wire 1, a neutral wire 2, and a connecting wire 3 for connecting the live wire 1 and the neutral wire 2. An electric valve 6 for controlling the drainage of the flushing water tank is provided on the connecting wire 3. A single-pole switch 4 is provided on the connecting wire 3, and the single-pole switch 4 is arranged inside the flushing water tank. The single-pole switch 4 has a moving contact and a static contact. A first buoyancy structure and a second buoyancy structure are movably arranged inside the flushing water tank. The second buoyancy structure is fixedly connected to the moving contact through a connecting rope 15. At the first water level, the first buoyancy structure floats upward, and the first buoyancy structure can abut against the moving contact and wedge the moving contact and the static contact together. At the second water level, the second buoyancy structure both sinks, and the second buoyancy structure can drive the moving contact to move through the connecting rope 15 and separate the moving contact and the static contact.

[0018] In some embodiments, a bracket 7 is provided inside the flushing water tank. Two rows of coaxial rings are provided on the bracket 7. One row of rings forms a first guide rail 8. The first guide rail 8 is preferably composed of two rings. The first buoyancy structure includes a first connecting rod 11 slidably connected to the first guide rail 8 and a first floating cylinder 10 fixedly arranged at the bottom of the first connecting rod 11. The first connecting rod 11 is preferably a steel rod. A limiting portion 12 for preventing the first connecting rod 11 from disengaging from the first guide rail 8 when it descends is provided on the first connecting rod 11. The purpose of providing the first guide rail 8 is to enable the first connecting rod 11 to make a reciprocating motion on a set route and accurately abut against the moving contact. The size of the first floating cylinder 10 needs to be larger than the size of the ring to prevent the first connecting rod 11 from disengaging from the first guide rail 8 when it rises. The first connecting rod 11 can also be set long enough to avoid its disengagement from the first guide rail 8.

[0019] In some embodiments, a second guide rail 9 is further provided on the bracket 7. The second guide rail 9 is preferably composed of three circular rings in another row. The second buoyancy structure includes a second connecting rod 14 slidably connected to the second guide rail 9 and a second floating cylinder 13 fixedly provided at the bottom of the second connecting rod 14. The second connecting rod 14 is preferably a steel rod. One end of the connecting rope 15 is tied tightly to the top of the second connecting rod 14, and the other end is tied tightly to the moving contact. The connecting rope 15 can prevent the second connecting rod 14 from disengaging from the second guide rail 9 when it descends. The size of the second floating cylinder 13 needs to be larger than the size of the circular ring to prevent the second connecting rod 14 from disengaging from the second guide rail 9 when it ascends. The second connecting rod 14 can also be set long enough to avoid its disengagement from the second guide rail 9.

[0020] In some embodiments, a time-delay disconnection relay 5 is provided on a part of the connecting wire 3 between the single-pole switch 4 and the electric valve 6, which can realize the time-delay power-off of the electric valve 6 to ensure that the flushing water tank is emptied.

[0021] For the constant water level electric valve controller provided by the present utility model, the first water level is the highest control water level, and the second water level is the lowest control water level. Specifically, the working mechanism is as follows: when the target highest control water level is reached, the first floating cylinder 10 rises under the combined action of buoyancy greater than gravity and drives the first connecting rod 11 to rise, closing the single-pole switch 4, and the electric valve 6 is powered on and opened, and the flushing water tank starts to drain water; as the water level drops, first the first floating cylinder 10 and the first connecting rod 11 drop. When the water level drops to the lowest control water level and the gravity of the second floating cylinder 13 is greater than the buoyancy, the second floating cylinder 13 and the second connecting rod 14 drop. When it drops to the point where the connecting rope 15 is straightened, the single-pole switch 4 is opened downward, the circuit at the single-pole switch 4 is disconnected, and under the action of the time-delay disconnection relay 5, the electric valve 6 is powered off and closed after a first period of time, thereby ensuring that the water tank is emptied.

[0022] The constant water level electric valve controller provided by the present utility model can stably control the flushing water tank to be emptied at a constant water level to ensure the maximization of the flushing effect; the facilities in the water are simple in structure and stable in operation; the connecting rod is limited in operation by using the guide rail to ensure the operation effect; the equipment adopts an integrated structure and can be directly placed in the flushing water tank without the need to additionally build other structures, and the installation, operation and maintenance are simple.

[0023] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A constant water level electric valve controller, comprising a live wire, a neutral wire, and a connecting wire for connecting the live wire and the neutral wire, wherein an electric valve for controlling the drainage of a flushing water tank is arranged on the connecting wire, and is characterized in that: A single-pole switch is provided on the connecting wire. The single-pole switch is arranged inside the flushing water tank. The single-pole switch has a moving contact and a static contact. A first buoyancy structure and a second buoyancy structure are movably arranged inside the flushing water tank. The second buoyancy structure is fixedly connected to the moving contact through a connecting rope. At the first water level, the first buoyancy structure floats upward. The first buoyancy structure can abut against the moving contact and make the moving contact wedge with the static contact. At the second water level, the second buoyancy structure sinks. The second buoyancy structure can drive the moving contact to move through the connecting rope and make the moving contact separate from the static contact.

2. The constant water level electric valve controller according to claim 1, characterized in that: A bracket is arranged inside the flushing water tank. A first guide rail is arranged on the bracket. The first buoyancy structure includes a first connecting rod slidably connected to the first guide rail and a first floating cylinder fixedly arranged at the bottom of the first connecting rod. A limiting part for preventing the first connecting rod from disengaging from the first guide rail is arranged on the first connecting rod. The first connecting rod can abut against the moving contact.

3. The constant water level electric valve controller according to claim 2, characterized in that: A second guide rail is also arranged on the bracket. The second buoyancy structure includes a second connecting rod slidably connected to the second guide rail and a second floating cylinder fixedly arranged at the bottom of the second connecting rod. The top end of the second connecting rod is fixedly connected to the moving contact through the connecting rope.

4. The constant water level electric valve controller according to claim 1, characterized in that: A time-delay disconnect relay is arranged on a part of the connecting wire between the single-pole switch and the electric valve.

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