Fluid pump with leakage protection structure
By incorporating a sealing groove and sealing strip structure into the fluid pump, and utilizing a motor-driven pressure plate to tightly contact the sealing strip, the fluid leakage problem is solved, achieving both sealing and lubrication of the fluid pump, thus extending its service life.
Patent Information
- Application Number
- CN202423170809.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing fluid pumps, fluid can easily leak into the motor during operation, affecting the normal use of the motor.
A sealing groove is set at the connection between the rotating shaft and the conveying chamber, and the driving force of the motor drives the sealing strip to make tight contact with the sealing groove. The sealing strip is pressed tightly by the pressure plate in the sealing groove to prevent fluid leakage.
It effectively prevents fluid leakage from the gap between the conveying chamber and the rotating shaft, improves sealing performance, and extends the service life of the device through intermittent lubrication and impurity removal structure.
Smart Images
Figure CN223511173U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fluid pump technical field, concretely is a fluid pump with leakage protection structure. BACKGROUND
[0002] Pump refers to the fluid conveying or make fluid pressure increasing mechanical, use the mechanical energy of prime mover or other external energy to send to fluid, make fluid energy increase, to this reach the purpose of conveying fluid.
[0003] The current fluid pump is started, and the fluid is pumped out after being sucked, and the fluid sucked into the pump in the pump working process can flow into the gap between the base and the pump body or the motor and the pump body, causing leakage, and the fluid leakage into the motor can affect the normal use of the motor. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of fluid pumps with leakage protection structure, sealing groove is provided at the connecting place of rotating shaft and transport chamber, sealing strip is provided in sealing groove, and the force of motor rotation is used to drive pressing plate to make sealing strip and sealing groove close contact, to solve the problem raised in above-mentioned background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of fluid pump with leakage protection structure, including base, the upper surface of the base is provided with motor, the output end of the motor is connected with rotating shaft, the connecting place of rotating shaft and motor is provided with bearing, the outer surface of the rotating shaft is provided with connecting cavity, and one end of connecting cavity is connected with the outer surface of base, the other end of connecting cavity is connected with sealing cavity, the sealing cavity is installed on the outer surface of rotating shaft, and another bearing is provided at the connecting place of sealing cavity and rotating shaft, the other side of the sealing cavity is provided with transport chamber, the side surface of the transport chamber is provided with inlet pipe, and the upper surface of the transport chamber is provided with outlet pipe, one end of the rotating shaft is connected with impeller, and the impeller is located inside transport chamber, sealing structure is provided in the inside of sealing cavity, and the sealing structure is driven sealing strip and the surface of transport chamber close contact in the process of device operation using the driving force of motor.
[0006] Preferably, the sealing structure includes a sealing groove connected to the inner wall of the sealing cavity, and the sealing groove is a circular ring structure with one side open, the sealing groove is sleeved on the outer surface of the rotating shaft, the inner wall of the sealing groove is provided with a sealing strip, the inner wall of the sealing groove is provided with an arc-shaped groove, and the arc-shaped groove in the inner wall of the sealing groove is slidably provided with a pressing plate, the surface of the pressing plate is in contact with the sealing strip, the outer surface of the rotating shaft is provided with a rotating wheel one, the surface of the rotating wheel one is slidably provided with a push rod, the outer surface of the push rod is provided with a spring, one end of the spring is connected to the surface of the push rod, and the other end of the spring is fixed to the surface of the rotating wheel one, the side surface of the push rod is in contact with the pressing plate.
[0007] By adopting the above technical solution, the force of the rotating shaft drives the rotating wheel to rotate continuously, so that the rotating wheel continuously drives the pressure plate to press the sealing strip tightly into the sealing groove, preventing fluid from leaking from the conveying chamber.
[0008] Preferably, the connecting cavity is provided with a lubrication structure, which uses the rotating wheel two to drive the rotating disk two to achieve intermittent lubrication of the bearing.
[0009] By adopting the above technical solution, the bearing can be lubricated using the lubrication structure, thereby increasing the service life of the device.
[0010] Preferably, the lubrication structure includes an oil reservoir, which is connected to the upper surface of the connecting cavity via a bracket. A turntable is connected to the lower surface of the oil reservoir, penetrating the surface of the connecting cavity. Two circular holes are symmetrically arranged on the surface of the turntable. A second turntable is rotatably connected to the lower surface of the first turntable. The surface of the second turntable is provided with circular holes. Two oil dripping pipes are symmetrically arranged below the second turntable, and the other end of each oil dripping pipe penetrates the surface of the bearing.
[0011] Using the above technical solution, the rotating shaft drives the second turntable to rotate continuously, so that the oil dripping pipe is intermittently connected to the oil storage box, and lubricating oil is dripped into the bearing.
[0012] Preferably, the lower surface of the turntable two is provided with a raised strip, the outer surface of the rotating shaft is provided with a rotating wheel two, the surface of the rotating wheel two is also provided with a raised strip, and the raised strip on the surface of the rotating wheel two is in contact with the raised strip on the surface of the turntable two.
[0013] Using the above technical solution, the raised strips on the surface of the second rotating wheel can drive the second rotating disk to rotate.
[0014] Preferably, the surface of the inlet pipe is provided with a purification structure, which uses a filter plate to remove impurities from the fluid entering the device, preventing impurities from entering and damaging the device.
[0015] The above technical solution utilizes a debris removal structure to intercept impurities within the fluid.
[0016] Preferably, the impurity removal structure includes an impurity removal pipe connected to the inner wall of the inlet pipe. A connecting rod is provided on the inner wall of the impurity removal pipe, and the connecting rod extends out of the surface of the impurity removal pipe. A filter plate is slidably connected to the outer surface of the connecting rod, and a spring is provided on the outer surface of the connecting rod. One end of the spring is connected to the surface of the filter plate, and the other end of the spring is connected to the surface of the connecting rod.
[0017] Using the above technical solution, the filter plate intercepts impurities inside the impurity removal tube. When the device stops, the filter plate extends out of the impurity removal tube under the action of the spring, making it convenient to clean the impurities on the surface of the filter plate.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the fluid pump equipped with a leakage protection structure:
[0019] 1. This device has a sealing groove on the inner wall of the sealing cavity, and a sealing strip is installed in the sealing groove to increase the sealing performance between the sealing cavity and the conveying cavity, and prevent fluid from leaking from the gaps in the conveying cavity. In addition, a sliding pressure plate is installed on the inner wall of the sealing groove. During the rotation of the shaft, the pressure plate is driven to press the sealing strip tightly to prevent the sealing strip from falling off.
[0020] 2. This device has oil drip pipes on the bearing surfaces on both sides, and the oil drip scraper is aligned with the second turntable. The upper surface of the second turntable is rotatably connected to the first turntable. During the rotation of the shaft, the second turntable is rotated, causing the round hole on the surface of the second turntable to be intermittently aligned with the round hole on the surface of the first turntable, so that the lubricating oil drips intermittently into the bearing to lubricate the bearing.
[0021] 3. This device has a cleaning pipe installed at the inlet pipe, a connecting rod installed on the inner wall of the cleaning pipe, and a filter plate slidably installed on the surface of the connecting rod. The filter plate can intercept impurities in the fluid and prevent them from entering the device. The connecting rod extends out of the cleaning pipe, allowing the filter plate to move outside the cleaning pipe for easy cleaning. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the external structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the orthographic section of the present invention;
[0024] Figure 3 This is a schematic diagram of the rotating wheel and sealing groove structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the sealing groove structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the rotating wheel structure of this utility model;
[0027] Figure 6 This is a schematic diagram of the structure of turntable one and turntable two of this utility model;
[0028] Figure 7 This is a schematic diagram of the impurity removal tube structure of this utility model.
[0029] In the diagram: 1. Base; 2. Motor; 3. Shaft; 4. Connecting cavity; 5. Sealing cavity; 6. Conveying cavity; 7. Inlet pipe; 8. Outlet pipe; 9. Impeller; 10. Sealing groove; 11. Sealing strip; 12. Pressure plate; 13. Rotary wheel one; 14. Push rod; 15. Spring; 16. Bearing; 17. Oil reservoir; 18. Rotary disc one; 19. Rotary disc two; 20. Rotary wheel two; 21. Oil drip pipe; 22. Impurity removal pipe; 23. Filter plate; 24. Connecting rod. 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 Figures 1-7 This utility model provides a technical solution: a fluid pump with a leakage protection structure, including a base 1, a motor 2, a rotating shaft 3, a connecting cavity 4, a sealing cavity 5, a conveying cavity 6, an inlet pipe 7, an outlet pipe 8, an impeller 9, a sealing groove 10, a sealing strip 11, a pressure plate 12, a first rotating wheel 13, a push rod 14, a spring 15, a bearing 16, an oil storage box 17, a first rotating disc 18, a second rotating disc 19, a second rotating wheel 20, an oil dripping pipe 21, a dirt removal pipe 22, a filter plate 23, and a connecting rod 24.
[0032] This device has leakage protection capabilities, specifically:
[0033] A motor 2 is mounted on the upper surface of the base 1. A rotating shaft 3 is connected to the output end of the motor 2. A bearing 16 is installed at the connection between the rotating shaft 3 and the motor 2. A connecting cavity 4 is provided on the outer surface of the rotating shaft 3, with one end of the connecting cavity 4 connected to the outer surface of the base 1 and the other end connected to a sealing cavity 5. The sealing cavity 5 is mounted on the outer surface of the rotating shaft 3, and another bearing 16 is installed at the connection between the sealing cavity 5 and the rotating shaft 3. A conveying cavity 6 is provided on the other side of the sealing cavity 5. An inlet pipe 7 is provided on the side surface of the conveying cavity 6, and an outlet pipe 8 is provided on the upper surface of the conveying cavity 6. An impeller 9 is connected to one end of the rotating shaft 3, and the impeller 9 is located inside the conveying cavity 6. A sealing structure is provided inside the sealing cavity 5. The sealing structure utilizes the driving force of the motor 2 to drive the sealing strip 11 during the operation of the device. The sealing structure includes a sealing groove 10, which is closely fitted to the surface of the conveying cavity 6. The sealing groove 10 is connected to the inner wall of the sealing cavity 5 and is a circular ring structure with one open side. The sealing groove 10 is sleeved on the outer surface of the rotating shaft 3. A sealing strip 11 is provided on the inner wall of the sealing groove 10. An arc-shaped groove is provided on the inner wall of the sealing groove 10. A pressure plate 12 is slidably provided in the arc-shaped groove on the inner wall of the sealing groove 10. The pressure plate 12 is in contact with the surface of the sealing strip 11. A rotating wheel 13 is provided on the outer surface of the rotating shaft 3. A push rod 14 is slidably provided on the surface of the rotating wheel 13. A spring 15 is provided on the outer surface of the push rod 14. One end of the spring 15 is connected to the surface of the push rod 14, and the other end of the spring 15 is fixed to the surface of the rotating wheel 13. The push rod 14 is in contact with the side surface of the pressure plate 12.
[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inlet pipe 7 and outlet pipe 8 are connected to the fluid inlet and outlet ends, respectively. The motor 2 is started, driving the rotating shaft 3 to rotate. The rotating shaft 3 drives the impeller 9 to rotate. The impeller 9 creates a pressure difference between the impeller 9 and the outside environment within the conveying chamber 6, drawing the fluid in through the inlet pipe 7 and discharging it through the outlet pipe 8. The sealing strip 11 installed in the sealing groove 10 prevents fluid leakage from the gap between the conveying chamber 6 and the rotating shaft 3 during operation. Furthermore, when the rotating shaft 3 rotates, it drives the rotating wheel 13 to rotate, which in turn drives the push rod 14 on its surface to rotate, thus driving the pressure... Plate 12 slides within the groove on the inner wall of sealing groove 10, causing pressure plate 12 to move toward sealing strip 11, pressing sealing strip 11 tightly into sealing groove 10. When pressure plate 12 reaches its maximum movement, push rod 14 can no longer push pressure plate 12, and rotating wheel 13 continues to rotate, driving push rod 14 to compress spring 15. Push rod 14 slides on the surface of rotating wheel 13, separating from pressure plate 12. When pressure plate 12 shows signs of loosening, the next rotating push rod 14 continues to press sealing strip 11, ensuring that sealing strip 11 always fits in seal groove 10, preventing device leakage.
[0035] This device has an automatic lubrication effect, specifically:
[0036] The connecting cavity 4 is equipped with a lubrication structure. The lubrication structure uses the rotating wheel 20 to drive the rotating disk 19 to move, thereby realizing intermittent lubrication of the bearing 16. The lubrication structure includes an oil reservoir 17, which is connected to the upper surface of the connecting cavity 4 by a bracket. The rotating disk 18 is connected to the lower part of the oil reservoir 17 through the surface of the connecting cavity 4. The surface of the rotating disk 18 has two circular holes symmetrically arranged. The lower surface of the rotating disk 18 is rotatably connected to the rotating disk 19, which has circular holes. The lower part of the rotating disk 19 has two oil drip pipes 21 symmetrically arranged. The other end of the oil drip pipes 21 penetrates the surface of the bearing 16. The lower surface of the rotating disk 19 has a raised strip. The outer surface of the rotating shaft 3 is equipped with the rotating wheel 20, which also has a raised strip. The raised strip on the surface of the rotating wheel 20 contacts the raised strip on the surface of the rotating disk 19.
[0037] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the oil storage box 17 stores lubricating oil. The rotation of the rotating shaft 3 drives the rotating wheel 20 to rotate, which in turn drives the rotating disk 19 to rotate. The rotating disk 19 continues to rotate. When the round hole on the surface of the rotating disk 19 aligns with the round hole on the surface of the rotating disk 18, the lubricating oil in the oil storage box 17 drips from the oil dripping pipe 21 into the bearing 16. With the rotation of the rotating shaft 3, the lubricating oil is fully lubricated, increasing the service life of the device.
[0038] This device has the effect of intercepting debris, specifically:
[0039] The surface of the inlet pipe 7 is provided with a cleaning structure. The cleaning structure uses a filter plate 23 to remove impurities from the fluid entering the device, preventing impurities from entering and damaging the device. The cleaning structure includes a cleaning pipe 22, which is connected to the inner wall of the inlet pipe 7. A connecting rod 24 is provided on the inner wall of the cleaning pipe 22, and the connecting rod 24 extends out of the surface of the cleaning pipe 22. The filter plate 23 is slidably connected to the outer surface of the connecting rod 24, and a spring 15 is provided on the outer surface of the connecting rod 24. One end of the spring 15 is connected to the surface of the filter plate 23, and the other end of the spring 15 is connected to the surface of the connecting rod 24.
[0040] like Figure 1 , Figure 3 , Figure 5 and Figure 7As shown, before using the device, the fluid delivery pipe is connected to the inlet pipe 7. After starting the device, the fluid pushes the filter plate 23 to the left from the right. While the filter plate 23 slides on the surface of the connecting rod 24, the spring 15 is compressed. The fluid is intercepted by the filter plate 23 to prevent impurities from entering the device. After the device stops, the pipe is separated from the inlet pipe 7. After the filter plate 23 loses the thrust of the fluid, it rebounds under the action of the spring 15. The filter plate 23 slides to the right and extends the impurity removal pipe 22, which is convenient for cleaning the impurities on the surface of the filter plate 23.
[0041] Working principle: When using this fluid pump with leakage protection structure, the inner wall of the sealing cavity 5 is provided with a sealing groove 10, and a sealing strip 11 is provided in the sealing groove 10. The sealing strip 11 is pressed by the pressure plate 12 sliding on the inner wall of the sealing groove 10, which can prevent the sealing strip 11 from falling off. During the rotation of the rotating shaft 3, the rotating disk 19 is driven to rotate. When the round hole on the surface of the rotating disk 19 is aligned with the round hole on the surface of the rotating disk 18, the lubricating oil drips intermittently into the bearing 16 to lubricate the bearing 16. The filter plate 23 can intercept impurities in the fluid to prevent impurities from entering the device. The filter plate 23 can also move to the outside of the impurity removal pipe 22 for easy cleaning, which increases the overall practicality.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fluid pump with a leakage protection structure, comprising a base (1), a motor (2) disposed on the upper surface of the base (1), a rotating shaft (3) connected to the output end of the motor (2), a bearing (16) disposed at the connection between the rotating shaft (3) and the motor (2), a connecting cavity (4) disposed on the outer surface of the rotating shaft (3), one end of the connecting cavity (4) being connected to the outer surface of the base (1), a sealing cavity (5) being connected to the other end of the connecting cavity (4), the sealing cavity (5) being mounted on the outer surface of the rotating shaft (3), another bearing (16) disposed at the connection between the sealing cavity (5) and the rotating shaft (3), a conveying cavity (6) disposed on the other side of the sealing cavity (5), an inlet pipe (7) disposed on the side surface of the conveying cavity (6), and an outlet pipe (8) disposed on the upper surface of the conveying cavity (6), an impeller (9) connected to one end of the rotating shaft (3), and the impeller (9) being located inside the conveying cavity (6), characterized in that: The sealing cavity (5) is provided with a sealing structure inside. The sealing structure uses the driving force of the motor (2) to drive the sealing strip (11) to fit tightly against the surface of the conveying cavity (6) during the operation of the device.
2. A fluid pump with a leakage protection structure according to claim 1, characterized in that: The sealing structure includes a sealing groove (10), which is connected to the inner wall of the sealing cavity (5). The sealing groove (10) is a circular ring structure with one side open. The sealing groove (10) is fitted on the outer surface of the rotating shaft (3). A sealing strip (11) is provided on the inner wall of the sealing groove (10). An arc-shaped groove is provided on the inner wall of the sealing groove (10). A pressure plate (12) is slidably provided in the arc-shaped groove of the inner wall of the sealing groove (10). The pressure plate (12) is in contact with the surface of the sealing strip (11). A rotating wheel (13) is provided on the outer surface of the rotating shaft (3). A push rod (14) is slidably provided on the surface of the rotating wheel (13). A spring (15) is provided on the outer surface of the push rod (14). One end of the spring (15) is connected to the surface of the push rod (14), and the other end of the spring (15) is fixed to the surface of the rotating wheel (13). The push rod (14) is in contact with the side surface of the pressure plate (12).
3. A fluid pump with a leakage protection structure according to claim 1, characterized in that: The connecting cavity (4) is provided with a lubrication structure. The lubrication structure uses the rotating wheel (20) to drive the rotating disk (19) to move, thereby realizing intermittent lubrication of the bearing (16).
4. A fluid pump with a leakage protection structure according to claim 3, characterized in that: The lubrication structure includes an oil reservoir (17), which is connected to the upper surface of the connecting cavity (4) via a bracket. A turntable (18) is connected to the lower surface of the oil reservoir (17) through the surface of the connecting cavity (4). Two circular holes are symmetrically arranged on the surface of the turntable (18). A turntable (19) is rotatably connected to the lower surface of the turntable (18). A circular hole is arranged on the surface of the turntable (19). Two oil dripping pipes (21) are symmetrically arranged below the turntable (19). The other end of the oil dripping pipe (21) penetrates the surface of the bearing (16).
5. A fluid pump with a leakage protection structure according to claim 4, characterized in that: The lower surface of the turntable (19) is provided with a raised strip, and the outer surface of the rotating shaft (3) is provided with a rotating wheel (20). The surface of the rotating wheel (20) is also provided with a raised strip, and the raised strip on the surface of the rotating wheel (20) is in contact with the raised strip on the surface of the turntable (19).
6. A fluid pump with a leakage protection structure according to claim 1, characterized in that: The surface of the inlet pipe (7) is provided with a cleaning structure. The cleaning structure uses a filter plate (23) to remove impurities from the fluid entering the device, preventing impurities from entering and damaging the device.
7. A fluid pump with a leakage protection structure according to claim 6, characterized in that: The impurity removal structure includes an impurity removal pipe (22), which is connected to the inner wall of the inlet pipe (7). A connecting rod (24) is provided on the inner wall of the impurity removal pipe (22), and the connecting rod (24) extends out of the surface of the impurity removal pipe (22). A filter plate (23) is slidably connected to the outer surface of the connecting rod (24). A spring (15) is provided on the outer surface of the connecting rod (24). One end of the spring (15) is connected to the surface of the filter plate (23), and the other end of the spring (15) is connected to the surface of the connecting rod (24).