Protection device for water shortage of water pump

Abstract

The utility model discloses a protection device for water shortage of a water pump, and relates to the technical field of water pump protection. A water inlet pipe is mounted on one side of the pump body, an alarm mechanism is mounted at one end of the water inlet pipe and comprises a water storage bin connected with the water inlet pipe, a window is mounted on one side of the water storage bin, a liftable water floating part is mounted at the top end of the water storage bin, an alarm is mounted at the top end of the outer side of the water storage bin, and the water floating part is used for triggering the alarm. A water conduit is installed on one side of the water storage bin, and valves are installed on the water inlet pipe and the water conduit. The alarm mechanism is installed on the side close to the water pump, and the alarm and the pressing block used for triggering the alarm are both arranged on the outer side of the water storage bin away from water, so that the synchronism of completion of water pumping and triggering of the water pump protection alarm is ensured, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of water pump protection technology, specifically relating to a protection device for water pumps when they are short of water. Background Technology

[0002] Water pumps are a common fluid transport device, widely used in many fields such as industry, agriculture, construction, and municipal engineering. Water pumps are prone to water shortage at the end of the pumping process. At this time, it is necessary to stop the operation of the water pump in time to avoid damage to the water pump caused by dry running.

[0003] The patent specification with announcement number CN221779625U discloses a water pump water shortage protection device, including a water storage body and a water inlet valve opened at the top. The water storage body has a water storage chamber with water storage function inside. A limiting frame for limiting movement is provided on one side of the inner wall of the water storage chamber. A limiting groove is opened inside the limiting frame. A sliding frame for detecting water level is slidably connected to the inner wall of the limiting groove. An internal groove for water shortage feedback information is opened at the bottom of the limiting groove.

[0004] This type of protection device installs the alarm button inside the water storage body and places the trigger end at the bottom of the buoyancy material in the horizontal direction. The shortcomings of this technical solution are that the water storage capacity of the water storage body is usually much larger than the water storage capacity in the water pump pipeline. Installing the alarm structure inside the water storage body, which is far away from the water pump, will result in a situation where the water pump can still pump water, but the water level inside the water storage body has already reached the level that triggers the alarm. In other words, installing the alarm device inside the water storage body will cause the alarm to be triggered prematurely. Secondly, since the alarm structure is installed inside the water storage body, the water pump will violently disturb the water flow inside the water storage body, causing the alarm structure to be under the disturbance of the water flow for a long time. This places high demands on the waterproofing of the alarm structure and affects its service life.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] The purpose of this utility model is to provide a protection device for water pumps in short supply. The technical problem to be solved is as follows: When the existing water pump short supply protection device is in use, the alarm position is far away from the water pump, which makes it easy to trigger the alarm too early, and the alarm triggering structure has a short service life.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A water pump water shortage protection device includes a pump body, an inlet pipe installed on one side of the pump body, an alarm mechanism installed at one end of the inlet pipe, the alarm mechanism including a water storage tank connected to the inlet pipe, a viewing window installed on one side of the water storage tank, a liftable float installed at the top of the water storage tank, and an alarm device installed at the top outer side of the water storage tank. The float device is used to trigger the alarm device. A water intake pipe is installed on one side of the water storage tank, and both the inlet pipe and the water intake pipe are equipped with valves.

[0009] As a further aspect of this utility model, the distance between the water storage tank and the adjacent side of the pump body is no more than forty centimeters.

[0010] As a further embodiment of this utility model: a water inlet is installed on one side of the top of the water storage tank, a cap is installed on the top of the water inlet, and four through holes are provided along the edge of the top of the water storage tank.

[0011] As a further embodiment of this utility model: the water float component includes four sliding rods that are slidably connected to the through hole, a water float plate is fixedly connected between the bottom ends of each sliding rod, and a pressure plate is fixedly connected between the top ends of each sliding rod.

[0012] As a further embodiment of this utility model: an alarm button is installed at the top of the alarm, and a pressure block is provided in the middle of the bottom surface of the pressure plate to adapt to the alarm button. The top height of the alarm is greater than the top height of the cover.

[0013] As a further embodiment of this utility model: the length of the sliding rod is less than the maximum distance between the water float and the top of the water inlet pipe.

[0014] As a further embodiment of this utility model: a gap is provided circumferentially between the water float plate and the inner wall of the water storage tank, and a gap is provided between the through hole and the slide rod.

[0015] The beneficial effects of this utility model are:

[0016] By installing an alarm mechanism with an alarm on one side near the pump body, when the water level in the reservoir of the alarm mechanism drops, the float plate installed inside the reservoir will drop, causing the pressure block on the bottom of the pressure plate to trigger the alarm button of the alarm, thus realizing the water shortage protection function of the water pump. Its technical advantages are as follows: First, the alarm mechanism is installed close to the pump body, so that the alarm triggering time is consistent with the water pumping completion time, thereby ensuring the synchronization of water pumping completion and alarm triggering and avoiding premature alarm due to incomplete water pumping. Second, placing the alarm and the alarm triggering pressure block at the top of the reservoir, on the outside of the reservoir, can ensure that the alarm structure is dry during use, reducing waterproof requirements and extending the service life of the device. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the alarm mechanism of this utility model;

[0021] Figure 4 This is a utility model Figure 3 A magnified view of the details at point A in the middle.

[0022] In the diagram: 1. Pump body; 2. Inlet pipe; 3. Alarm mechanism; 31. Water storage tank; 32. Water float component; 321. Slide bar; 322. Water float plate; 323. Pressure plate; 324. Pressure block; 33. Alarm; 34. Inlet; 35. Cover; 36. Through hole; 37. Viewing window; 4. Water inlet pipe; 5. Valve; 6. Outlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] like Figures 1 to 4 As shown, the water pump water shortage protection device includes a pump body 1, an inlet pipe 2 installed on one side of the pump body 1, an alarm mechanism 3 installed at one end of the inlet pipe 2, the alarm mechanism 3 includes a water storage tank 31 connected to the inlet pipe 2, a liftable float 32 installed at the top of the water storage tank 31, and an alarm 33 installed at the top of the outer side of the water storage tank 31. The float 32 is used to trigger the alarm 33. A water inlet pipe 4 is installed on one side of the water storage tank 31, and valves 5 are installed on both the inlet pipe 2 and the water inlet pipe 4.

[0025] It should be noted that the pump body 1 is the water pump used for pumping water. A water outlet 6 is set on one side of the top of the pump body 1. The water outlet 6 is used to install the water outlet pipe and discharge the water pumped by the pump body 1. The valves 5 installed on the water inlet pipe 2 and the water outlet pipe 4 are both ball valves. A valve handle is set on the top of the ball valve. By turning the valve handle, the water flow status of the water inlet pipe 2 and the water outlet pipe 4 can be controlled. When both valve handles are in the closed state, the water storage tank 31 is in an independent state, and water filling operation can be performed at this time. Specifically, the end of the water inlet pipe 2 away from the pump body 1 is fixedly connected to the water storage tank 31 and is relatively short. That is, the water storage tank 31 is installed close to the pump body 1. During installation, the distance between the water storage tank 31 and the adjacent side of the pump body 1 does not exceed 40 centimeters. The purpose of this is that the close installation position will cause the alarm mechanism 3 to be triggered only when the pumping is completed, thereby improving the completion of the pumping and avoiding the occurrence of incomplete pumping.

[0026] like Figure 1 and Figure 3 As shown, a water inlet 34 is installed on one side of the top of the water storage tank 31, a cap 35 is installed on the top of the water inlet 34, and four through holes 36 are provided along the edge of the top of the water storage tank 31.

[0027] The water float component 32 includes four slide rods 321 that are slidably connected to the through hole 36. A water float plate 322 is fixedly connected between the bottom ends of each slide rod 321, and a pressure plate 323 is fixedly connected between the top ends.

[0028] An alarm button is installed at the top of the alarm 33, and a pressure block 324 is set in the middle of the bottom surface of the pressure plate 323 to match the alarm button. The top height of the alarm 33 is greater than the top height of the cover 35.

[0029] It should be noted that before pumping water, the operator closes the two valves 5 to isolate the water storage tank 31, then opens the cover 35 to fill the water storage tank 31 with water, and then closes the cover 35. At this time, the hollow float plate 322 is located at the top inside the water storage tank 31. Then, the two valves 5 are opened to start pumping water. During the pumping process, since the float plate 322 is in a high position, the pressure block 324 on the bottom of the pressure plate 323 is in a disengaged state from the alarm button of the alarm 33. When the pumping is completed, the water level in the water storage tank 31 adjacent to the pump body 1 drops, and the float plate 322 lowers, causing the outer pressure plate 323 to drop until the pressure block 324 triggers the alarm button of the alarm 33, thereby reminding the operator that the water pump is short of water and realizing the protection function of the water pump.

[0030] like Figures 2 to 4 As shown, the length of the slide bar 321 is less than the maximum distance between the float plate 322 and the top of the inlet pipe 2;

[0031] A gap is provided circumferentially between the water float plate 322 and the inner wall of the water storage tank 31, and a gap is provided between the through hole 36 and the slide rod 321;

[0032] It should be noted that when the high-level water injected into the water storage tank 31 before pumping is removed, it indicates that the water supply at the end of the inlet pipe 4 is insufficient, meaning that the pump is about to run out of water after pumping is completed. When the water level inside the water storage tank 31 is pumped down to a low level, triggering the alarm 33, the water level inside the water storage tank 31 is still higher than the pumping water level of the inlet pipe 2 due to the short length of the slide bar 321. This provides a short operating time margin for the staff to shut down the pump, preventing a short-term water shortage in the pump body 1. In addition, a viewing window 37 is installed on one side of the water storage tank 31 (see...). Figure 1 The water level in the water storage tank 31 is directly observed by staff, allowing for timely water replenishment or direct observation of the imminent completion of water pumping. The gap between the float plate 322 and the water storage tank 31 facilitates the smooth flow of water to the bottom of the tank when water is added, and prevents the float plate 322 from colliding with the side wall when it moves vertically. The gap between the through hole 36 and the slide rod 321 is also used to avoid interfering with the raising and lowering of the float plate 322, so as to ensure the smooth triggering of the alarm.

[0033] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A water pump water shortage protection device, comprising a pump body (1), wherein a water inlet pipe (2) is installed on one side of the pump body (1), characterized in that, An alarm mechanism (3) is installed at one end of the water inlet pipe (2). The alarm mechanism (3) includes a water storage tank (31) connected to the water inlet pipe (2). A viewing window (37) is installed on one side of the water storage tank (31). A liftable water float (32) is installed at the top of the water storage tank (31). An alarm (33) is installed at the top of the outer side of the water storage tank (31). The water float (32) is used to trigger the alarm (33). A water inlet pipe (4) is installed on one side of the water storage tank (31). Both the water inlet pipe (2) and the water inlet pipe (4) are equipped with valves (5).

2. The water pump water shortage protection device according to claim 1, characterized in that, The distance between the water storage tank (31) and the adjacent side of the pump body (1) is no more than 40 centimeters.

3. The water pump water shortage protection device according to claim 1, characterized in that, A water inlet (34) is installed on one side of the top of the water storage tank (31), and a cap (35) is installed on the top of the water inlet (34). Four through holes (36) are provided along the edge of the top of the water storage tank (31).

4. The water pump water shortage protection device according to claim 3, characterized in that, The water float component (32) includes four slide rods (321) that are slidably connected to the through hole (36). A water float plate (322) is fixedly connected between the bottom ends of each slide rod (321), and a pressure plate (323) is fixedly connected between the top ends.

5. The water pump water shortage protection device according to claim 4, characterized in that, An alarm button is installed at the top of the alarm (33), and a pressure block (324) is provided at the middle of the bottom surface of the pressure plate (323) to accommodate the alarm button. The top height of the alarm (33) is greater than the top height of the cover (35).

6. The water pump water shortage protection device according to claim 4, characterized in that, The length of the slide bar (321) is less than the maximum distance between the float plate (322) and the top of the inlet pipe (2).

7. The water pump water shortage protection device according to claim 4, characterized in that, A circumferential gap is provided between the water float plate (322) and the inner wall of the water storage tank (31), and a gap is provided between the through hole (36) and the slide rod (321).

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