A buoyancy switch device for automatically controlling the drainage of a pump

Abstract

The utility model discloses a kind of buoyancy switch devices of automatic control pump drainage, it includes the fixed plate being installed on the surface of water pump, the water pump is located at the bottom of water pool, the left side of the fixed plate is fixedly installed with lever micro-control switch, the top of the lever micro-control switch is provided with control rod, the lever micro-control switch is electrically connected with water pump, the end of the control rod is rotatably connected with cylindrical rod, the surface of the cylindrical rod is fixedly connected with swing rod.The utility model passes through the water level in water pool drop, float ball will drop, through swing rod drives cylindrical rod rotation, until float ball drops to the lowest water level, boss on cylindrical rod will be resisted on control rod, so that control rod is stressed, through lever micro-control switch control water pump close, it can reach the switch of pump is changed to float ball switch and can be realized liquid level high automatic start, low automatic close, reach the purpose of protection pump normal operation.

Description

Technical Field

[0001] This utility model belongs to the field of pump control technology, and in particular relates to a buoyancy switch device for automatically controlling pump drainage. Background Technology

[0002] Manual operation of pumps can lead to negligence. Sometimes, the pump may not be started in time when the liquid level is high, causing liquid to overflow, or the pump may not be shut off in time when the liquid level is low, causing damage to the pump's seals. Therefore, we have proposed an automatic control device for pump drainage using a float switch. By replacing the pump switch with a float switch, the pump can be automatically started when the liquid level is high and automatically shut off when the liquid level is low, thus protecting the pump and ensuring its normal operation. Utility Model Content

[0003] The purpose of this invention is to provide a buoyancy switch device for automatically controlling pump drainage. This device replaces the pump switch with a float switch, enabling automatic start-up when the liquid level is high and automatic shutdown when the liquid level is low, thus protecting the normal operation of the pump and solving the aforementioned technical problems.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A buoyancy switch device for automatically controlling pump drainage includes a fixed plate installed on the surface of a water pump, the water pump being located at the bottom of a water tank, a lever-type micro-control switch fixedly installed on the left side of the fixed plate, a control rod provided on the top of the lever-type micro-control switch, the lever-type micro-control switch being electrically connected to the water pump, a cylindrical rod rotatably connected to the end of the control rod, a swing rod fixedly connected to the surface of the cylindrical rod, a float fixedly connected to the end of the swing rod away from the cylindrical rod, and a protrusion adapted to the control rod fixedly connected to the surface of the cylindrical rod.

[0005] Preferably, the end of the control rod has a cavity, and a shaft pin is fixedly installed through the cavity, with the cylindrical rod rotatably connected to the surface of the shaft pin.

[0006] Preferably, the distance between the surface of the cylindrical rod and the side of the cavity is less than the width of the protrusion.

[0007] Preferably, a limit cover is fixedly connected to the top of the control rod, and the limit cover is adapted to the swing rod.

[0008] Preferably, a soft shell is fixedly connected to the left side of the fixed plate and sleeved on the surface of the lever-type micro-control switch. The swing rod extends through to the outside of the soft shell, and a sealant is provided between the swing rod and the soft shell. The position where the soft shell contacts the swing rod is deformable.

[0009] Preferably, the fixing plate is equipped with two symmetrical hoop rings, and the fixing plate is fixedly installed on the surface of the water pump by the two hoop rings.

[0010] The beneficial effects of this utility model are: 1. This utility model utilizes the principle that when the water level in the pool drops, the float will also drop. The swing rod drives the cylindrical rod to rotate until the float drops to the lowest water level. The protrusion on the cylindrical rod will then press against the control rod, causing the control rod to be under force. The lever-type micro-control switch controls the water pump to shut off, thus changing the pump switch to a float switch to achieve automatic start when the liquid level is high and automatic shutdown when the liquid level is low, thereby protecting the normal operation of the pump. 2. By setting a limiting cover, this utility model can restrict the swing rod from rotating to a vertical state, effectively ensuring that the swing rod and the float are in an inclined state. When the water level drops, the float can rotate downward due to its own weight. Attached Figure Description

[0011] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a perspective view of one embodiment of the present utility model; Figure 2 This is a front cross-sectional view of a fixing plate and a lever-type micro-control switch according to an embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of the control lever and the swing lever according to one embodiment of the present invention; Figure 4 This is a three-dimensional disassembled schematic diagram of the control lever and the swing lever according to an embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of a control lever and a cylindrical rod according to the present invention.

[0012] The attached diagram lists the components represented by each number as follows: 1. Water pump, 2. Fixing plate, 3. Lever-type micro switch, 4. Control rod, 5. Cavity, 6. Shaft pin, 7. Column rod, 8. Swing rod, 9. Float, 10. Protrusion, 11. Limit cover, 12. Soft shell, 13. Hoop. Detailed Implementation

[0013] In the following description, embodiments of the buoyancy switch device for automatic control of pump drainage according to the present invention will be described with reference to the accompanying drawings.

[0014] Figure 1-5This invention illustrates an embodiment of an automatic control pump drainage buoyancy switch device, comprising a fixed plate 2 mounted on the surface of a water pump 1, the water pump 1 being located at the bottom of a water tank. A lever-type micro-control switch 3 is fixedly mounted on the left side of the fixed plate 2. Two symmetrical clamps 13 are mounted on the fixed plate 2, and the fixed plate 2 is fixedly mounted on the surface of the water pump 1 via the two clamps 13. A control rod 4 is provided at the top of the lever-type micro-control switch 3, and the lever-type micro-control switch 3 is electrically connected to the water pump 1. A cylindrical rod 7 is rotatably connected to the end of the control rod 4. A cavity 5 is formed at the end of the control rod 4, and a shaft pin 6 is fixedly mounted through the cavity 5. The cylindrical rod 7 is rotatably connected to the surface of the shaft pin 6, and a swing rod 8 is fixedly connected to the surface of the cylindrical rod 7, the swing rod 8 being located away from the cylindrical rod 7. A float 9 is fixedly connected to one end, and a limit cover 11 is fixedly connected to the top of the control rod 4. The limit cover 11 is adapted to the swing rod 8. By setting the limit cover 11, the swing rod 8 can be restricted to rotate to a vertical state, effectively ensuring that the swing rod 8 and the float 9 are in an inclined state. When the water level drops, the float 9 can rotate downward due to its own weight. A protrusion 10 adapted to the control rod 4 is fixedly connected to the surface of the column rod 7. The distance between the surface of the column rod 7 and the side of the inner cavity of the cavity 5 is less than the width of the protrusion 10. A soft shell 12 sleeved on the surface of the lever-type micro-control switch 3 is fixedly connected to the left side of the fixing plate 2. The swing rod 8 passes through to the outside of the soft shell 12. A sealant is provided between the swing rod 8 and the soft shell 12. The contact position between the soft shell 12 and the swing rod 8 can be deformed.

[0015] Working principle: When this utility model is in use, as the water level in the pool drops, the float 9 will also drop. The swing rod 8 drives the cylindrical rod 7 to rotate on the surface of the shaft pin 6 until the float 9 drops to the lowest water level. The weight of the float 9 and the swing rod 8 causes the protrusion 10 on the surface of the cylindrical rod 7 to press against the control rod 4, causing the control rod 4 to be subjected to downward force. The lever-type micro-control switch 3 controls the water pump 1 to shut off. When the water level in the water pump 1 rises, the float 9 will move upward. The swing rod 8 drives the cylindrical rod 7 to rotate on the surface of the shaft pin 6, causing the end of the control rod 4 to move upward, so that the lever-type micro-control switch 3 is in the open state, turning on the water pump 1. This achieves automatic control based on the water level. It should be noted that the lever-type micro-control switch 3 and the control rod 4 are existing technologies and are commercially available products.

[0016] In summary: This buoyancy switch device for automatic pump drainage works by lowering the water level in the pool, causing the float 9 to descend. This, in turn, causes the cylindrical rod 7 to rotate via the swing rod 8 until the float 9 reaches the lowest water level. At this point, the protrusion 10 on the cylindrical rod 7 presses against the control rod 4, applying force to the control rod 4. This force, through the lever-type micro-control switch 3, controls the pump 1 to shut off. This achieves the goal of automatically starting the pump when the liquid level is high and automatically shutting it off when the liquid level is low, thus protecting the pump's normal operation.

Claims

1. A buoyancy switch device for automatically controlling pump drainage, characterized in that, The device includes a fixed plate (2) installed on the surface of a water pump (1), the water pump (1) being located at the bottom of a water tank, a lever-type micro-control switch (3) fixedly installed on the left side of the fixed plate (2), a control rod (4) being provided on the top of the lever-type micro-control switch (3), the lever-type micro-control switch (3) being electrically connected to the water pump (1), a columnar rod (7) being rotatably connected to the end of the control rod (4), a swing rod (8) being fixedly connected to the surface of the columnar rod (7), a float (9) being fixedly connected to the end of the swing rod (8) away from the columnar rod (7), and a protrusion (10) adapted to the control rod (4) being fixedly connected to the surface of the columnar rod (7).

2. The buoyancy switch device for automatically controlling pump drainage according to claim 1, characterized in that, The end of the control rod (4) is provided with a cavity (5), and a shaft pin (6) is fixedly installed through the cavity (5). The column rod (7) is rotatably connected to the surface of the shaft pin (6).

3. The buoyancy switch device for automatically controlling pump drainage according to claim 2, characterized in that, The distance between the surface of the cylindrical rod (7) and the inner side of the cavity (5) is less than the width of the protrusion (10).

4. The buoyancy switch device for automatically controlling pump drainage according to claim 3, characterized in that, The top of the control lever (4) is fixedly connected to a limit cover (11), which is adapted to the swing lever (8).

5. The buoyancy switch device for automatically controlling pump drainage according to claim 4, characterized in that, The left side of the fixed plate (2) is fixedly connected to a soft shell (12) sleeved on the surface of the lever-type micro-control switch (3). The swing rod (8) extends through to the outside of the soft shell (12). A sealant is provided between the swing rod (8) and the soft shell (12). The position where the soft shell (12) contacts the swing rod (8) can be deformed.

6. The buoyancy switch device for automatically controlling pump drainage according to claim 5, characterized in that, Two symmetrical hoop rings (13) are installed on the fixing plate (2), and the fixing plate (2) is fixedly installed on the surface of the water pump (1) by the two hoop rings (13).

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