Water pump with anti-idling function
By designing an anti-dry-running rotary booster assembly, a liquid level sensor and a pressure relief valve are used to prevent the water pump from running dry, thus solving the problems of energy waste and mechanical wear caused by water pump dry running. This achieves a simple, low-cost, and effective anti-dry-running effect.
Patent Information
- Application Number
- CN202520565837.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing water pumps are prone to running dry when lacking liquid lubrication and cooling, resulting in energy waste and mechanical wear. Furthermore, existing anti-drying measures are complex in structure, costly, and ineffective.
The system employs an anti-dry-running rotary pressurization assembly, which includes a motor, drive shaft, negative pressure frame, connector, liquid level sensor, pressurization chamber, rotary groove, water inlet chamber, and pressure relief valve. The liquid level sensor monitors the liquid level, and the pressure relief valve regulates the pressure to prevent the water pump from running dry.
It effectively prevents water pumps from running dry, reduces energy consumption, extends water pump life, simplifies the structure, reduces costs, and improves operational stability and safety.
Smart Images
Figure CN223868185U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water pump technical field especially relates to a water pump with anti idle function. BACKGROUND
[0002] Water pump is the mechanical of conveying liquid or making liquid pressure, has the extensive application in numerous fields. However, in the actual use process, water pump often faces the problem of idle, when the water pump suction pipe is not full of liquid, or in the running process due to some reasons cause liquid supply interruption, water pump will enter idle state. Idle not only can cause the waste of energy, also can make the mechanical parts inside water pump rapidly wear and tear due to the lack of liquid lubrication and cooling, shorten the service life of water pump, serious time even possible to cause mechanical failure, cause production accident.
[0003] At present, although there are some measures to prevent water pump idle on the market, but most complex structure, cost is higher, and the effect is not ideal in practical application.
[0004] Therefore, developing a kind of simple structure, cost is low and the water pump with good idle prevention effect has important practical significance. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of water pump with anti idle function, solve although there are some measures to prevent water pump idle on the market, but most complex structure, cost is higher, and the effect is not ideal in practical application Problem.
[0006] To realize the above-mentioned purpose, a kind of water pump with anti idle function is used in the utility model, including anti idle type backshaped pressure increasing assembly, the anti idle type backshaped pressure increasing assembly includes motor, transmission shaft, negative pressure frame, connecting head and liquid level sensor, the transmission shaft is detachably connected with the motor, and located at one side of the motor, and the transmission shaft is arranged at the output end of the motor, the negative pressure frame is detachably connected with the motor, and located at the side of the motor close to the transmission shaft, and the negative pressure frame is arranged on the outer surface of the transmission shaft, the connecting head is detachably connected with the negative pressure frame, and located at the side of the negative pressure frame away from the motor, the liquid level sensor is detachably connected with the connecting head, and located at the side of the connecting head away from the negative pressure frame.
[0007] The anti-idling type backshaped pressurizing assembly further comprises a pressurizing cavity, a backshaped groove and a water guiding cavity, the pressurizing cavity is fixedly connected with the negative pressure frame and located at the inner side of the negative pressure frame away from the motor, and the pressurizing cavity is arranged on the outer surface of the transmission shaft, the backshaped groove is fixedly connected with the connecting head and located at the inner side of the connecting head close to the negative pressure frame, and the backshaped groove is arranged on one side of the pressurizing cavity, and the water guiding cavity is fixedly connected with the connecting head and located at the inner side of the connecting head away from the negative pressure frame, and the water guiding cavity is arranged on the side of the backshaped groove away from the negative pressure frame.
[0008] The anti-idling type backshaped pressurizing assembly further comprises a pressure relief valve, the pressure relief valve is detachably connected with the connecting head and located at the inner side of the connecting head away from the negative pressure frame, and the pressure relief valve is arranged on the inner side of the water guiding cavity, and the pressure relief valve is vertically arranged with the connecting head.
[0009] The anti-idling type backshaped pressurizing assembly further comprises a compression bolt, one end of the compression bolt is arranged on the side of the connecting head close to the liquid level sensor, and the other end of the compression bolt is detachably connected with the motor through the connecting head and the negative pressure frame and located at the side of the motor close to the transmission shaft.
[0010] The anti-idling type backshaped pressurizing assembly further comprises a power line, a mounting frame and a mounting groove, the power line is detachably connected with the motor and located at the side of the motor away from the negative pressure frame, the mounting frame is detachably connected with the motor and located at one side of the motor, and the mounting frame is vertically arranged with the negative pressure frame.
[0011] The utility model discloses a water pump with anti-idling function, including anti-idling type backshaped pressurizing assembly, the anti-idling type backshaped pressurizing assembly includes motor, transmission shaft, negative pressure frame, connecting head and liquid level sensor, the transmission shaft is detachably connected with the motor and located at one side of the motor, and the transmission shaft is arranged on the output end of the motor, the negative pressure frame is detachably connected with the motor and located at the side of the motor close to the transmission shaft, and the negative pressure frame is arranged on the outer surface of the transmission shaft, the connecting head is detachably connected with the negative pressure frame and located at the side of the negative pressure frame away from the motor, the liquid level sensor is detachably connected with the connecting head and located at the side of the connecting head away from the negative pressure frame, because the original anti-idling structure is modified and replaced for anti-idling type backshaped pressurizing assembly, thereby effectively solve the problem that although there are some measures to prevent the water pump from idling in the market, most of the structures are complex, the cost is higher, and the effect is not ideal in practical application. ACCURACY OF DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0013] Figure 1 is the overall structure of the present application schematic diagram.
[0014] Figure 2 is the overall view of the present application,
[0015] Figure 3 is the A-A line structure of the present application Figure 2 sectional view.
[0016] 101-motor, 102-power line, 103-mounting frame, 104-mounting groove, 105-transmission shaft, 106-negative pressure frame, 107-pressurizing cavity, 108-back-shaped groove, 109-connector, 110-water diversion cavity, 111-pressure relief valve, 112-pressing bolt, 113-liquid level sensor. DETAILED DESCRIPTION
[0017] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0018] Please refer to Figures 1-3 , Figure 1 is the overall structure of the present application schematic diagram, Figure 2 is the overall view of the present application, Figure 3 is the A-A line structure of the present application Figure 2 sectional view.
[0019] This utility model provides a water pump with anti-dry-running function, including an anti-dry-running rotary booster assembly. The anti-dry-running rotary booster assembly includes a motor 101, a drive shaft 105, a negative pressure frame 106, a connector 109, a liquid level sensor 113, a booster chamber 107, a rotary groove 108, a water inlet chamber 110, a pressure relief valve 111, a clamping bolt 112, a power cord 102, a mounting bracket 103, and a mounting groove 104. This solution addresses the problem that while some measures exist on the market to prevent water pump dry-running, most are complex in structure, costly, and not ideal in practical applications. It is understood that the aforementioned solution can... After the power is turned on, the motor 101 starts to run. The output end of the motor 101 drives the drive shaft 105 to rotate at high speed. The rotation of the drive shaft 105 in turn drives the negative pressure frame 106 mounted on its outer surface to rotate synchronously. The rotation of the negative pressure frame 106 creates a negative pressure environment in the pressurization chamber 107. Under the action of negative pressure, liquid is drawn from the water inlet chamber 110 into the connector 109, and then enters the pressurization chamber 107 through the loop groove 108. As the drive shaft 105 continues to rotate, the liquid in the pressurization chamber 107 is accelerated and pressurized under the action of centrifugal force, and then flows through the connector 109. 09 is conveyed to the outlet of the water pump to realize the liquid conveying function. The liquid level sensor 113 monitors the liquid level in the connector 109 in real time. When the liquid level is within the normal operating range, the liquid level sensor 113 will not trigger the anti-dry running mechanism. The motor 101 continuously drives the drive shaft 105 and the negative pressure frame 106 to rotate, and the water pump pumps water normally. Once the liquid level sensor 113 detects that the liquid level in the connector 109 is lower than the set threshold, it indicates that the water pump may be running dry. At this time, the liquid level sensor 113 immediately transmits a signal to the motor 101. The motor 101 receives the signal. Then, the power supply to the motor 101 is quickly cut off to stop the motor 101 from running, thereby preventing the water pump from running dry. During the operation of the water pump, if the pressure in the water inlet chamber 110 exceeds the set pressure value of the pressure relief valve 111, the pressure relief valve 111 will automatically open to discharge some of the liquid in the water inlet chamber 110 to reduce the pressure and protect the safety of the water pump and the entire system. When the pressure returns to the normal range, the pressure relief valve 111 will automatically close. This effectively solves the problem that although there are some measures on the market to prevent water pumps from running dry, most of them are complex in structure, expensive, and not ideal in practical applications.
[0020] In this specific embodiment, the drive shaft 105 is detachably connected to the motor 101 and is located on one side of the motor 101, with the drive shaft 105 disposed at the output end of the motor 101. The negative pressure frame 106 is detachably connected to the motor 101 and is located on the side of the motor 101 closer to the drive shaft 105, with the negative pressure frame 106 disposed on the outer surface of the drive shaft 105. The connector 109 is detachably connected to the negative pressure frame 106 and is located on the side of the negative pressure frame 106 away from the motor 101. The liquid level sensor 113 is detachably connected to the connector 109. The drive shaft 105, located on the side of the connector 109 away from the negative pressure frame 106, plays a crucial role in transmitting power throughout the water pump system. Its installation accuracy directly affects the operating efficiency and stability of the water pump. After installation, manually rotate the drive shaft 105 to check whether its rotation is smooth and whether there is any jamming. The installation position of the negative pressure frame 106 needs to be accurately positioned so that it can work in conjunction with other components to achieve the functions of preventing dry running and boosting pressure of the water pump. As a key component connecting the negative pressure frame 106 with other components, the stability and sealing of the connector 109 are of paramount importance.
[0021] The pressurizing chamber 107 is fixedly connected to the negative pressure frame 106 and located on the inner side of the negative pressure frame 106 away from the motor 101. The pressurizing chamber 107 is disposed on the outer surface of the transmission shaft 105. The loop groove 108 is fixedly connected to the connector 109 and located on the inner side of the connector 109 near the negative pressure frame 106. The loop groove 108 is disposed on one side of the pressurizing chamber 107. The water inlet chamber 110 is fixedly connected to the connector 109 and located on the inner side of the connector 109 away from the negative pressure frame 106. The water inlet chamber 110 is disposed on the side of the loop groove 108 away from the negative pressure frame 106. The fixed connection of the pressurizing chamber 107 can be achieved by welding or high-strength bolt connection to ensure the connection is firm. The installation positions of the loop groove 108 and the water inlet chamber 110 must be strictly in accordance with the design requirements to ensure the correct flow path of the liquid within them, so as to realize the normal function of the water pump.
[0022] Secondly, the pressure relief valve 111 is detached from the connector 109 and located on the inner side of the connector 109 away from the negative pressure frame 106. The pressure relief valve 111 is also located on the inner side of the water inlet chamber 110 and is perpendicular to the connector 109. The installation direction and position of the pressure relief valve 111 must be accurate to ensure timely and effective pressure relief when the system pressure is too high, thus ensuring the safe operation of the water pump. After installation, a preliminary pressure test can be performed on the pressure relief valve 111 to check whether it can work normally.
[0023] Meanwhile, one end of the clamping bolt 112 is located on the side of the connector 109 near the liquid level sensor 113, and the other end of the clamping bolt 112 passes through the connector 109 and the negative pressure frame 106 and is detachably connected to the motor 101, and is located on the side of the motor 101 near the drive shaft 105. The function of the clamping bolt 112 is to further strengthen the connection between the components and prevent loosening during the operation of the water pump.
[0024] In addition, the power cord 102 is detachably connected to the motor 101 and is located on the side of the motor 101 away from the negative pressure frame 106. The mounting bracket 103 is detachably connected to the motor 101 and is located on one side of the motor 101. The mounting bracket 103 is perpendicular to the negative pressure frame 106.
[0025] When using this invention, after the power is turned on, the motor 101 starts to run. The output end of the motor 101 drives the transmission shaft 105 to rotate at high speed. The rotation of the transmission shaft 105 in turn drives the negative pressure frame 106 mounted on its outer surface to rotate synchronously. The rotation of the negative pressure frame 106 creates a negative pressure environment in the pressurization chamber 107. Under the action of negative pressure, liquid is drawn from the water inlet chamber 110 into the connector 109, and then enters the pressurization chamber 107 through the loop groove 108. As the transmission shaft 105 continues to rotate, the liquid in the pressurization chamber 107 is accelerated and pressurized under the action of centrifugal force, and then transported to the outlet of the water pump through the connector 109 to realize the liquid transportation function. The liquid level sensor 113 monitors the liquid level in the connector 109 in real time. When the liquid level is within the normal operating range, the liquid level sensor 113 will not trigger the anti-dry running mechanism, and the motor 101 continues to drive the transmission shaft. When 105 and the negative pressure frame 106 rotate, the water pump pumps water normally. Once the liquid level sensor 113 detects that the liquid level in the connector 109 is lower than the set threshold, it indicates that the water pump may be running dry. At this time, the liquid level sensor 113 immediately transmits a signal to the motor 101. After receiving the signal, the motor 101 quickly cuts off the power supply to stop the motor 101, thereby preventing the water pump from running dry. During the operation of the water pump, if the pressure in the water inlet chamber 110 exceeds the set pressure value of the pressure relief valve 111, the pressure relief valve 111 will automatically open to discharge some of the liquid in the water inlet chamber 110 to reduce the pressure and protect the safety of the water pump and the entire system. When the pressure returns to the normal range, the pressure relief valve 111 will automatically close. This effectively solves the problem that although there are some measures on the market to prevent water pumps from running dry, most of them are complex in structure, expensive, and not ideal in practical applications.
[0026] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A water pump with anti-dry-running function, characterized in that, The system includes an air defense conversion and reversible pressurization assembly, which comprises a motor, a drive shaft, a negative pressure frame, a connector, and a liquid level sensor. The drive shaft is detachably connected to the motor and is located on one side of the motor, and is disposed at the output end of the motor. The negative pressure frame is detachably connected to the motor and is located on the side of the motor closer to the drive shaft, and is disposed on the outer surface of the drive shaft. The connector is detachably connected to the negative pressure frame and is located on the side of the negative pressure frame away from the motor. The liquid level sensor is detachably connected to the connector and is located on the side of the connector away from the negative pressure frame.
2. The water pump with anti-dry-running function as described in claim 1, characterized in that, The air defense conversion loop-shaped pressurization assembly further includes a pressurization chamber, a loop groove, and a water inlet chamber. The pressurization chamber is fixedly connected to the negative pressure frame and is located on the inner side of the negative pressure frame away from the motor. The pressurization chamber is disposed on the outer surface of the transmission shaft. The loop groove is fixedly connected to the connector and is located on the inner side of the connector near the negative pressure frame. The loop groove is disposed on one side of the pressurization chamber. The water inlet chamber is fixedly connected to the connector and is located on the inner side of the connector away from the negative pressure frame. The water inlet chamber is disposed on the side of the loop groove away from the negative pressure frame.
3. The water pump with anti-dry-running function as described in claim 2, characterized in that, The air defense conversion and pressurization assembly also includes a pressure relief valve, which is detachably connected to the connector and located on the inner side of the connector away from the negative pressure frame. The pressure relief valve is also located on the inner side of the water inlet chamber and is perpendicular to the connector.
4. The water pump with anti-dry-running function as described in claim 3, characterized in that, The air defense transformation and pressure boosting assembly also includes a clamping bolt. One end of the clamping bolt is located on the side of the connector near the liquid level sensor, and the other end of the clamping bolt passes through the connector and the negative pressure frame and is detachably connected to the motor, and is located on the side of the motor near the drive shaft.
5. The water pump with anti-dry-running function as described in claim 4, characterized in that, The air defense conversion and pressure boosting assembly also includes a power cord, a mounting bracket, and a mounting slot. The power cord is detachably connected to the motor and is located on the side of the motor away from the negative pressure frame. The mounting bracket is detachably connected to the motor and is located on one side of the motor, and the mounting bracket is perpendicular to the negative pressure frame.