Magnetic drive pump with automatic flow interruption function

Abstract

This utility model relates to the field of drive pump technology and discloses a magnetic drive pump with an autonomous flow interruption function. It includes a motor, a controller fixedly connected to the top of the motor, a magnetic transmission tube fixedly connected to the left side of the motor, a liquid pump fixedly connected to the left side of the magnetic transmission tube, an outlet pipe fixedly connected to the top front end of the liquid pump, and an inlet pipe fixedly connected to the left side of the liquid pump. Liquid baffles are fixedly installed on the inner walls of both the outlet and inlet pipes. Each of the liquid baffles has a rectangular groove, and a movable door is installed on the inner wall of each rectangular groove. A tension spring is fixedly connected to the left side of each movable door, and a fixing block is fixedly connected to the left side of the tension spring. In this utility model, during use, the controller first drives the motor, which then drives the liquid pump through the magnetic transmission tube in a contactless manner, causing the liquid to flow in through the inlet pipe and open the movable door upon inflow.

Description

Technical Field

[0001] This utility model relates to the field of drive pump technology, and in particular to a magnetic drive pump with an autonomous flow interruption function. Background Technology

[0002] Magnetic drive pumps, as leak-free fluid transfer devices, are widely used in chemical, pharmaceutical, and environmental protection fields due to their unique magnetic coupling transmission method. Traditional magnetic drive pumps mainly consist of a pump body, impeller, magnetic coupler, and motor. They achieve non-contact power transmission through the magnetic force of internal and external magnetic rotors, fundamentally solving the leakage problem inherent in mechanical seal pumps and effectively avoiding the risk of spillage of toxic, harmful, flammable, explosive, and valuable fluids. However, traditional magnetic drive pumps lack effective flow monitoring and automatic flow interruption mechanisms, making it impossible to perceive the flow status of fluids in the pipeline in real time. During the transfer process, if there is a break in the inlet or the liquid level is too low, the pump body will continuously run dry, wasting energy and causing internal components to overheat and age due to prolonged lack of medium cooling, thus shortening the equipment's lifespan. Furthermore, for some operating conditions requiring precise flow control or intermittent delivery, traditional magnetic drive pumps rely on complex external control systems, increasing the cost and operational complexity of the equipment.

[0003] In traditional autonomous flow interruption systems, the industry has attempted to use temperature sensors to monitor the magnetic rotor temperature. When the temperature is too high, the controller cuts off the power. However, this method has a slow response time and cannot intervene in time at the initial stage of flow interruption. Some products also add manual valves to the pipeline, requiring real-time monitoring and operation by humans. This results in low automation and is difficult to meet the high-efficiency and safety requirements of modern industrial production. Therefore, developing a magnetically driven pump with autonomous flow interruption function to achieve real-time monitoring of fluid delivery status, rapid response to abnormal situations, and automatic flow interruption protection has become an important direction for industry development. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a magnetically driven pump with an autonomous flow interruption function, which aims to improve the problem that traditional liquid pumps in the prior art are difficult to autonomously interrupt flow.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a magnetically driven pump with an autonomous flow interruption function, including a motor, a controller fixedly connected to the top of the motor, a magnetic transmission tube fixedly connected to the left side of the motor, a liquid pump fixedly connected to the left side of the magnetic transmission tube, an outlet pipe fixedly connected to the top front end of the liquid pump, an inlet pipe fixedly connected to the left side of the liquid pump, liquid baffles fixedly installed on the inner walls of both the outlet and inlet pipes, multiple liquid baffles having rectangular grooves, movable doors installed on the inner walls of the rectangular grooves, a tension spring fixedly connected to the left side of the movable door, a fixing block two fixedly connected to the left side of the tension spring, a fixing shaft two fixedly connected to the rear end of the movable door, the rear end of the fixing shaft two fixedly connected to the liquid baffle, a connecting shaft fixedly connected to the front end of the movable door, a detector fixedly connected to the front end of the connecting shaft, and a quick-release mechanism fixedly connected to the bottom of the motor, the quick-release mechanism being used for disassembling the equipment.

[0006] As a further description of the above technical solution:

[0007] The quick-release mechanism includes a mounting plate, the top of which is mounted on the bottom of the motor. A platform is mounted on the bottom of the mounting plate. Fixing blocks are fixedly mounted on the left and right sides of the top of the platform. Fixing shafts are fixedly connected to the inner walls of multiple fixing blocks. Rotating blocks are rotatably connected to the outer walls of multiple fixing shafts. Grooves are provided on multiple rotating blocks. Rotating bolts are threaded to the center of the top surface of each fixing block. Positioning stakes are fixedly connected to adjacent ends of multiple rotating blocks.

[0008] As a further description of the above technical solution:

[0009] A protective sleeve is fixedly connected to the outer wall of the magnetic drive tube, and the protective sleeve is used to protect the magnetic drive tube.

[0010] As a further description of the above technical solution:

[0011] The detector has a detection box installed on its outer wall, and a support block is fixedly connected to the bottom of the pump.

[0012] As a further description of the above technical solution:

[0013] The platform is fixedly connected to a protective strip around its perimeter, and fixing holes are provided at each of the four corners of the platform.

[0014] As a further description of the above technical solution:

[0015] Anti-slip pads are fixedly installed on both the left and right sides of the top of the platform, and the anti-slip pads are used to prevent slipping.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the left side of the platform, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0018] As a further description of the above technical solution:

[0019] Protective strips are fixedly installed on both the left and right sides of the mounting plate, and the protective strips are used to protect the mounting plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, during use, the controller first drives the motor, which then transmits non-contact transmission to the liquid pump via a magnetic transmission tube, driving the pump to pump liquid. The liquid flows in through the inlet pipe, opening the movable door and causing it to rotate the connecting shaft. The connecting shaft is fixedly connected to the detector. When the connecting shaft rotates, it changes the resistance of the detector, which then sends a signal back to the controller. The outlet pipe works on the same principle as the inlet pipe. After receiving the signal, the controller compares the inlet and outlet volumes. When the inlet volume is less than the outlet volume, the controller will automatically power off the motor, protecting the pump and extending its service life.

[0022] 2. In this utility model, the fixing and movement of the rotating block are controlled by rotating the rotating bolt. When the rotating bolt and the rotating block are perpendicular, the positioning stake on one side of the rotating block can be slid into the mounting plate and fixed. When the rotating bolt and the rotating block are in the same direction, the positioning stake can be slid out of the mounting plate, which can play the role of quick disassembly and fixing, making it convenient for workers to perform maintenance on the equipment after disassembly. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the magnetically driven pump with autonomous flow interruption function proposed in this utility model.

[0024] Figure 2 This is a partial structural diagram of the liquid pump of the magnetically driven pump with autonomous flow interruption function proposed in this utility model.

[0025] Figure 3 This is a partial structural exploded view of the detector of the magnetically driven pump with autonomous flow interruption function proposed in this utility model.

[0026] Figure 4 This is a partial structural diagram of the platform for the magnetically driven pump with autonomous flow interruption function proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of the motor of the magnetically driven pump with autonomous flow interruption function proposed in this utility model.

[0028] Legend:

[0029] 1. Motor; 2. Quick-release mechanism; 201. Platform; 202. Fixing block one; 203. Fixing shaft one; 204. Rotating block; 205. Groove; 206. Rotating bolt; 207. Positioning stake; 208. Mounting plate; 3. Controller; 4. Magnetic transmission tube; 5. Liquid pump; 6. Liquid outlet pipe; 7. Liquid inlet pipe; 8. Liquid baffle; 9. Movable door; 10. Fixing shaft two; 11. Tension spring; 12. Fixing block two; 13. Connecting shaft; 14. Detector; 15. Rectangular groove; 16. Anti-slip pad; 17. Protective sleeve; 18. Handle; 19. Protective strip one; 20. Fixing hole; 21. Anti-slip sleeve; 22. Detection box; 23. Protective strip two; 24. Support block. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides a magnetic drive pump with an autonomous flow interruption function, including a motor 1, a controller 3 fixedly connected to the top of the motor 1, a magnetic transmission tube 4 fixedly connected to the left side of the motor 1, a liquid pump 5 fixedly connected to the left side of the magnetic transmission tube 4, an outlet pipe 6 fixedly connected to the top front end of the liquid pump 5, an inlet pipe 7 fixedly connected to the left side of the liquid pump 5, liquid baffles 8 fixedly installed on the inner walls of both the outlet pipe 6 and the inlet pipe 7, multiple liquid baffles 8 each having a rectangular groove 15, movable doors 9 installed on the inner walls of the rectangular grooves 15, a tension spring 11 fixedly connected to the left side of the movable door 9, a fixing block 12 fixedly connected to the left side of the tension spring 11, a fixing shaft 10 fixedly connected to the rear end of the movable door 9, a liquid baffle 8 fixedly connected to the rear end of the fixing shaft 10, a connecting shaft 13 fixedly connected to the front end of the movable door 9, a detector 14 fixedly connected to the front end of the connecting shaft 13, and a quick-release mechanism 2 fixedly connected to the bottom of the motor 1, the quick-release mechanism 2 being used for disassembling the equipment;

[0032] Specifically, a controller 3 is fixedly connected to the top of the motor 1, and a magnetic transmission tube 4 is fixedly connected to the left side of the motor 1. The magnetic transmission tube 4 is made of high-strength alloy material and has a high-performance permanent magnet inside. A liquid pump 5 is fixedly connected to the left side of the magnetic transmission tube 4. An outlet pipe 6 is fixedly connected to the top front end of the liquid pump 5, and an inlet pipe 7 is fixedly connected to the left side of the liquid pump 5. Both the outlet pipe 6 and the inlet pipe 7 are made of high-strength PVC pipe, which has good flexibility and impact resistance. Liquid baffles 8 are fixedly installed on the inner walls of both the outlet pipe 6 and the inlet pipe 7. The liquid baffles 8 are circular and fit tightly against the inner wall of the pipe. Rectangular grooves 15 are opened on the multiple liquid baffles 8. Movable doors 9 are installed on the inner walls of the rectangular grooves 15. The movable doors 9 are made of lightweight alloy material and can be opened and closed flexibly.

[0033] Please see the appendix Figure 1 and attached Figure 4 The quick-release mechanism 2 includes a mounting plate 208. The top of the mounting plate 208 is mounted on the bottom of the motor 1. A platform 201 is mounted on the bottom of the mounting plate 208. Fixing blocks 202 are fixedly mounted on the left and right sides of the top of the platform 201. Fixing shafts 203 are fixedly connected to the inner walls of the fixing blocks 202. Rotating blocks 204 are rotatably connected to the outer walls of the fixing shafts 203. Grooves 205 are provided on the rotating blocks 204. Rotating bolts 206 are threadedly connected to the center of the top surface of the fixing blocks 202. Positioning pins 207 are fixedly connected to adjacent ends of the rotating blocks 204.

[0034] Specifically, the quick-release mechanism 2 includes a mounting plate 208, the top of which is fixedly connected to the bottom of the motor 1. A platform 201 is attached to the bottom of the mounting plate 208. The platform 201 has a rectangular structure. Fixing blocks 202 are fixedly installed on the left and right sides of the top of the platform 201. The fixing blocks 202 have a cuboid structure. Fixing shafts 203 are fixedly connected to the inner walls of the multiple fixing blocks 202. Rotating blocks 204 are rotatably connected to the outer walls of the multiple fixing shafts 203.

[0035] Please see the appendix Figure 1 Appendix Figure 5 A protective sleeve 17 is fixedly connected to the outer wall of the magnetic drive tube 4. The protective sleeve 17 is used to protect the magnetic drive tube 4. A detection box 22 is installed on the outer wall of the detector 14. A support block 24 is fixedly connected to the bottom of the liquid pump 5. A protective strip 19 is fixedly connected around the platform 201. Fixing holes 20 are opened at the four corners of the platform 201.

[0036] Specifically, a protective sleeve 17 is fixedly connected to the outer wall of the magnetic drive tube 4. The protective sleeve 17 reduces fatigue damage to the magnetic drive tube 4 caused by resonance. A detection box 22 is installed on the outer wall of the detector 14. The detection box 22 is a closed cuboid structure with good waterproof and dustproof performance. The box is lined with cushioning cotton to suspend and fix the detector 14. A support block 24 is fixedly connected to the bottom of the liquid pump 5.

[0037] Please see the appendix Figure 1 and attached Figure 2 Anti-slip pads 16 are fixedly installed on the top left and right sides of platform 201. The anti-slip pads 16 are used to prevent slipping. A handle 18 is fixedly connected to the left side of platform 201. An anti-slip sleeve 21 is fixedly connected to the outer wall of handle 18. Protective strips 23 are fixedly installed on the left and right sides of mounting plate 208. Protective strips 23 are used to protect mounting plate 208.

[0038] Specifically, anti-slip pads 16 are fixedly installed on the left and right sides of the top of platform 201. The anti-slip pads 16 have excellent wear resistance and elasticity. A handle 18 is fixedly connected to the left side of platform 201. An anti-slip sleeve 21 is fixedly connected to the outer wall of handle 18. The anti-slip sleeve 21 has good feel and insulation performance. Protective strips 23 are fixedly installed on the left and right sides of mounting plate 208. Protective strips 23 can also prevent operators from being scratched when they come into contact with the metal edge of mounting plate 208.

[0039] Working principle: In use, the controller 3 drives the motor 1, which in turn drives the liquid pump 5 through the magnetic transmission tube 4 for contactless transmission. The liquid pump 5 runs to pump liquid, and the liquid flows in through the inlet pipe 7. When it flows in, it pushes open the movable door 9, causing the movable door 9 to drive the connecting shaft 13 to rotate. The connecting shaft 13 is fixedly connected to the detector 14. When the connecting shaft 13 rotates, it will change the resistance of the detector 14. The detector 14 will feed back the signal to the controller 3. The working principle of the outlet pipe 6 is the same as that of the inlet pipe 7. After receiving the signal, the controller 3 compares the two. When the liquid inlet is less than the liquid outlet, the controller 3 will control the motor 1 to automatically cut off the power.

[0040] The rotation of the rotating bolt 206 controls the fixing and movement of the rotating block 204. When the rotating bolt 206 and the rotating block 204 are perpendicular, the positioning post 207 on one side of the rotating block 204 can be slid into the mounting plate 208 and fixed. When the rotating bolt 206 and the rotating block 204 are in the same direction, the positioning post 207 can be slid out of the mounting plate 208, which can achieve the function of quick disassembly and fixing.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic drive pump with autonomous flow interruption function, comprising a motor (1), characterized in that: A controller (3) is fixedly connected to the top of the motor (1). A magnetic drive tube (4) is fixedly connected to the left side of the motor (1). A liquid pump (5) is fixedly connected to the left side of the magnetic drive tube (4). An outlet pipe (6) is fixedly connected to the top front end of the liquid pump (5). An inlet pipe (7) is fixedly connected to the left side of the liquid pump (5). Liquid baffles (8) are fixedly installed on the inner walls of both the outlet pipe (6) and the inlet pipe (7). Each of the liquid baffles (8) has a rectangular groove (15). A movable door is installed on the inner wall of each rectangular groove (15). (9) A tension spring (11) is fixedly connected to the left side of the movable door (9), and a fixing block (12) is fixedly connected to the left side of the tension spring (11). A fixing shaft (10) is fixedly connected to the rear end of the movable door (9), and the rear end of the fixing shaft (10) is fixedly connected to the liquid baffle (8). A connecting shaft (13) is fixedly connected to the front end of the movable door (9), and a detector (14) is fixedly connected to the front end of the connecting shaft (13). A quick-release mechanism (2) is fixedly connected to the bottom of the motor (1), and the quick-release mechanism (2) is used to disassemble the equipment.

2. The magnetic drive pump with autonomous flow interruption function according to claim 1, characterized in that: The quick-release mechanism (2) includes a mounting plate (208). The top of the mounting plate (208) is mounted on the bottom of the motor (1). A platform (201) is mounted on the bottom of the mounting plate (208). Fixing blocks (202) are fixedly mounted on the left and right sides of the top of the platform (201). Fixing shafts (203) are fixedly connected to the inner walls of the multiple fixing blocks (202). Rotating blocks (204) are rotatably connected to the outer walls of the multiple fixing shafts (203). Grooves (205) are opened on the multiple rotating blocks (204). Rotating bolts (206) are threadedly connected to the center of the top surface of the fixing blocks (202). Positioning pins (207) are fixedly connected to the adjacent ends of the multiple rotating blocks (204).

3. The magnetic drive pump with autonomous flow interruption function according to claim 1, characterized in that: A protective sleeve (17) is fixedly connected to the outer wall of the magnetic transmission tube (4), and the protective sleeve (17) is used to protect the magnetic transmission tube (4).

4. The magnetic drive pump with autonomous flow interruption function according to claim 1, characterized in that: The detector (14) has a detection box (22) installed on its outer wall, and the bottom of the pump (5) is fixedly connected to a support block (24).

5. The magnetic drive pump with autonomous flow interruption function according to claim 2, characterized in that: The platform (201) is fixedly connected with protective strips (19) around its perimeter, and fixing holes (20) are provided at the four corners of the platform (201).

6. The magnetic drive pump with autonomous flow interruption function according to claim 2, characterized in that: The platform (201) is fixedly installed with anti-slip pads (16) on both the left and right sides of the top, and the anti-slip pads (16) are used to prevent slipping.

7. The magnetic drive pump with autonomous flow interruption function according to claim 2, characterized in that: A handle (18) is fixedly connected to the left side of the platform (201), and an anti-slip sleeve (21) is fixedly connected to the outer wall of the handle (18).

8. The magnetic drive pump with autonomous flow interruption function according to claim 2, characterized in that: The mounting plate (208) is fixedly installed with protective strips (23) on both the left and right sides. The protective strips (23) are used to protect the mounting plate (208).

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