Self-priming pump with liquid storage function

Abstract

The utility model discloses a self-priming pump with a liquid storage function, which relates to the technical field of self-priming pumps and comprises a mounting base and a self-priming pump body, the self-priming pump body is fixedly connected to the top end of the mounting base, and a liquid storage tank is fixedly connected to the top end of the mounting base. According to the self-priming pump, impurity particles with different sizes can be filtered and blocked through the filtering and blocking mechanism by using the first filter screen and the second filter screen, so that the impurity particles are prevented from entering the self-priming pump body to cause blockage or damage to the self-priming pump body; meanwhile, the first filter screen and the second filter screen are driven to do reciprocating motion through cooperation of elastic telescopic motion of the spring and the movable rod and water flowing influence, attachment of impurity particles is reduced, blockage is reduced, and smoothness is kept; according to the self-priming pump, impurity particles in the liquid storage tank body can be cleaned through the rotary cleaning mechanism by means of the scraping plate and the cleaning brush body, the impurity particles are prevented from staying in the liquid storage tank body, and therefore the situation that the amount of pre-filled liquid is reduced due to the fact that the liquid storage space is occupied is avoided, and normal use of the self-priming pump body is not prone to being affected.

Description

Technical Field

[0001] This utility model belongs to the field of self-priming pump technology, and in particular relates to a self-priming pump with liquid storage function. Background Technology

[0002] A self-priming pump is a highly efficient and practical fluid transport device. It creates a vacuum inside the pump by rotating the impeller at high speed, thereby enabling the intake and transport of liquid. A self-priming pump with a liquid storage function adds a liquid storage device to the ordinary self-priming pump to store a certain amount of liquid. It can pre-store a certain amount of liquid, which can help to expel air from the pump chamber and intake pipeline more quickly when the pump starts, thereby shortening the self-priming time and improving the reliability of self-priming.

[0003] For example, CN219827214U discloses a self-priming pump, relating to the field of fluid machinery technology. This device includes a motor, pump body, gas-liquid separator, return pipe, storage tank, and suction pipe. The motor is connected to the pump body via a coupling. The pump body's inlet is connected to the storage tank, and its outlet is connected to the gas-liquid separator. The return pipe connects the gas-liquid separator and the storage tank. A pressure buffer is installed on the top cover of the storage tank, connecting to the inner cavity of the tank. One end of the suction pipe is connected to a water pipe in a water tank, and the other end is located inside the storage tank, below the top cover, and facing the pressure buffer. This allows fluid injected through the suction pipe to be sprayed into the pressure buffer without obstruction by the storage tank. After being buffered by the pressure buffer, the fluid falls into the storage tank. This system is not easily damaged and has a long service life.

[0004] The above-mentioned patent has the following defects in use:

[0005] During the process of self-priming pumps drawing liquid, some liquids often contain impurities such as mud, sand, and fibers. Moreover, during the flow of the drawn liquid, it is difficult for the storage tank to filter and block these impurities, making it easy for unfiltered mud, sand, fibers, and other impurities to enter the pump cavity, causing impeller flow channel blockage or wear, thereby affecting the normal use of the self-priming pump. To address this, this utility model proposes a self-priming pump with a liquid storage function. Utility Model Content

[0006] This utility model provides a self-priming pump with a liquid storage function. Through a filtering and blocking mechanism, a first filter screen and a second filter screen can filter and block impurities of different sizes, preventing them from entering the pump body and causing blockage or damage. Simultaneously, the elastic extension and retraction of a spring and a movable rod, combined with water flow, drives the first and second filter screens to reciprocate, reducing the adhesion of impurities, minimizing blockage, and maintaining unobstructed flow. A rotating cleaning mechanism, using a scraper and cleaning brush, cleans impurities from inside the liquid storage tank, preventing them from remaining inside and thus avoiding occupying storage space and reducing the amount of pre-filled liquid. This minimizes the impact on the normal operation of the self-priming pump, thus solving the problems in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model discloses a self-priming pump with liquid storage function, comprising:

[0009] The mounting base and the self-priming pump body are fixedly connected to the top of the mounting base. The top of the mounting base is fixedly connected to a liquid storage tank, and the outer wall of the liquid storage tank is fixedly connected to a water suction pipe and a water guide pipe. One end of the water guide pipe is connected to the suction end of the self-priming pump body.

[0010] A filter blocking mechanism is provided inside the water pumping pipe and the water guiding pipe, and the filter blocking mechanism is used to filter impurities.

[0011] A rotary cleaning mechanism is disposed inside the liquid storage tank and is used to clean impurities inside the liquid storage tank.

[0012] The filtering and blocking mechanism includes a first filter screen, the outer wall of which is in close contact with the inner wall of the water pumping pipe. A second filter screen, with a smaller mesh size than the first filter screen, is also provided inside the water guide pipe. A pair of connecting plates are fixedly connected inside both the water pumping pipe and the water guide pipe, and a cylinder is fixedly connected between opposite sides of the pair of connecting plates. A piston plate is slidably connected inside the cylinder, and a movable rod is fixedly connected to one side of the piston plate. A spring is sleeved on the outer wall of the movable rod, and both ends of the spring are fixedly connected to one side of the piston plate and the inner wall of the cylinder, respectively. A circular hole is drilled in the inner wall of the cylinder, and one end of the movable rod passes through the circular hole and extends to the outside of the cylinder. Two pairs of connecting rods are fixedly connected between the outer walls of the pair of movable rods and the first and second filter screens, respectively.

[0013] Furthermore, an injection pipe and an exhaust pipe are fixedly connected to the top of the liquid storage tank, respectively. A first control valve is fixedly connected to the outer wall of the injection pipe, and an exhaust valve is fixedly connected to the outer wall of the exhaust pipe.

[0014] Furthermore, two pairs of fixed hemispheres are fixedly connected to the side of the cylinder near the connecting rod, and the fixed hemispheres correspond to the connecting rod.

[0015] Furthermore, a sealing ring is fixedly connected to the inner wall of the circular hole, and the inner wall of the sealing ring is in close contact with the outer wall of the movable rod.

[0016] Furthermore, the rotary cleaning mechanism includes a rotating rod, which is rotatably connected to the liquid storage tank via a bearing. A hand crank is fixedly connected to the top of the rotating rod, and a scraper is fixedly connected to the bottom of the rotating rod. The bottom of the scraper contacts the inner bottom of the liquid storage tank. A connecting straight frame is fixedly connected to the top of the scraper, and a cleaning brush is fixedly connected to one side of the connecting straight frame. One side of the cleaning brush contacts the inner wall of the liquid storage tank.

[0017] Furthermore, an elastic rope is fixedly connected between the inner top and inner bottom of the connecting straight frame, and multiple evenly distributed rubber balls are fixedly connected to the outer wall of the elastic rope.

[0018] Furthermore, a discharge pipe is fixedly connected to the bottom end of the liquid storage tank, and a second control valve is fixedly connected to the outer wall of the discharge pipe.

[0019] The present invention has the following advantages over the prior art:

[0020] 1. This technical solution, through its filter blocking mechanism, can use a first filter screen to filter large impurity particles in the water, while simultaneously using a second filter screen to filter and block small impurity particles, preventing them from entering the self-priming pump body and causing blockage or damage. Furthermore, during the continuous flow of water, the first and second filter screens reciprocate through the synergistic effect of hydrodynamic force and the elastic extension and contraction of the spring and movable rod, reducing the adhesion of impurity particles, minimizing blockage, and maintaining unobstructed flow.

[0021] 2. This technical solution uses a rotating cleaning mechanism. By operating the hand crank, the scraper and cleaning brush rotate to clean the impurities inside the liquid storage tank, preventing them from remaining inside the tank. This avoids occupying storage space and reducing the amount of pre-filled liquid, and is less likely to interfere with the self-priming ability of the self-priming pump, ensuring the normal use of the self-priming pump.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a self-priming pump with liquid storage function according to the present invention;

[0025] Figure 2 This is a partial cross-sectional structural diagram of a self-priming pump with liquid storage function according to the present invention;

[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0027] Figure 4 This is a partial cross-sectional structural diagram of the rotary cleaning mechanism in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Mounting base; 2. Self-priming pump body; 3. Liquid storage tank; 4. Pumping pipe; 5. Water guide pipe; 6. Injection pipe; 7. First control valve; 8. Exhaust pipe; 9. Exhaust valve; 10. Filtering and blocking mechanism; 1001. First filter screen; 1002. Second filter screen; 1003. Cylinder; 1004. Connecting piece; 1005. Piston plate; 1006. Spring; 1007. Movable rod; 1008. Connecting rod; 1009. Fixed hemisphere; 11. Sealing ring; 12. Rotary cleaning mechanism; 1201. Rotating rod; 1202. Scraper; 1203. Connecting straight frame; 1204. Cleaning brush body; 1205. Hand crank; 1206. Rubber ball; 1207. Elastic rope; 13. Second control valve; 14. Discharge pipe. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0033] Please see Figures 1-4 As shown, the present invention provides a self-priming pump with a liquid storage function, comprising:

[0034] Mounting base 1 and self-priming pump body 2, the self-priming pump body 2 is fixedly connected to the top of mounting base 1, the top of mounting base 1 is fixedly connected to liquid storage tank 3, and the outer wall of liquid storage tank 3 is fixedly connected to water suction pipe 4 and water guide pipe 5 respectively, one end of water guide pipe 5 is connected to the suction end of self-priming pump body 2.

[0035] The filter blocking mechanism 10 is installed inside the water pumping pipe 4 and the water guiding pipe 5, and the filter blocking mechanism 10 is used to filter impurities.

[0036] A rotary cleaning mechanism 12 is disposed inside the liquid storage tank 3 and is used to clean impurities inside the liquid storage tank 3.

[0037] The filtering and blocking mechanism 10 includes a first filter screen 1001, the outer wall of which is in close contact with the inner wall of the water pumping pipe 4. A second filter screen 1002, which is in close contact with the inner wall of the water guide pipe 5, is also provided inside the water guide pipe 5. The mesh size of the second filter screen 1002 is smaller than that of the first filter screen 1001. A pair of connecting pieces 1004 are fixedly connected inside both the water pumping pipe 4 and the water guide pipe 5. A cylinder 1003 is fixedly connected between opposite sides of the pair of connecting pieces 1004. A piston plate 10 is slidably connected inside the cylinder 1003. 05, and a movable rod 1007 is fixedly connected to one side of the piston plate 1005. A spring 1006 is sleeved on the outer wall of the movable rod 1007, and the two ends of the spring 1006 are fixedly connected to one side of the piston plate 1005 and the inner wall of the cylinder 1003, respectively. A round hole is drilled in the inner wall of the cylinder 1003, and one end of the movable rod 1007 passes through the round hole and extends to the outside of the cylinder 1003. Two pairs of connecting rods 1008 are fixedly connected between the outer walls of a pair of movable rods 1007 and the first filter screen 1001 and the second filter screen 1002, respectively.

[0038] In the specific implementation process, when the self-priming pump body 2 is pumping water, the water first enters the storage tank 3 through the pumping pipe 4, and at the same time, large impurity particles in the water are filtered through the first filter screen 1001. Then, the water inside the storage tank 3 enters the self-priming pump body 2 through the guide pipe 5, and at the same time, small impurity particles are filtered and blocked through the second filter screen 1002 to prevent them from entering the self-priming pump body 2 and causing blockage or damage. In the process of continuous water flow, when the water flows through the first filter screen 1001 and the second filter screen 1002... When impurities accumulate, local resistance increases, creating a pressure difference between the first filter screen 1001 and the second filter screen 1002. This pressure difference pushes the first filter screen 1001 and the second filter screen 1002 towards the low-pressure side, i.e., the direction of water flow. This causes the two pairs of connecting rods 1008 and movable rods 1007 to squeeze the piston plate 1005 into the cylinder 1003 and stretch the spring 1006. The spring 1006 provides a reverse rebound force through its elastic reset action, forming a reciprocating motion that reduces the adhesion of impurity particles, lowers blockage, and keeps the flow unobstructed.

[0039] The top of the liquid storage tank 3 is fixedly connected to an injection pipe 6 and an exhaust pipe 8. The outer wall of the injection pipe 6 is fixedly connected to a first control valve 7, and the outer wall of the exhaust pipe 8 is fixedly connected to an exhaust valve 9.

[0040] The injection pipe 6 is directly connected to the external water pipe and the storage tank. In conjunction with the first control valve 7, the liquid in the storage tank is injected into the storage tank 3 to ensure that the tank maintains a certain liquid level, thereby achieving the self-priming function. When the pump stops, the overflowing liquid flows back to the storage tank through the injection pipe 6 to avoid polluting the environment. The exhaust pipe 8, in conjunction with the exhaust valve 9, is responsible for venting the gas in the storage tank 3 to prevent gas accumulation from affecting the normal operation of the pump.

[0041] Among them, two pairs of fixed hemispheres 1009 are fixedly connected to the side of the cylinder 1003 near the connecting rod 1008, and the fixed hemispheres 1009 correspond to the connecting rod 1008.

[0042] During the process of the two pairs of connecting rods 1008 and movable rods 1007 pressing the piston plate 1005 into the cylinder 1003, when they move to contact and collide with the fixed hemisphere 1009, they can use vibration to shake off the impurity particles attached to the first filter screen 1001 and the second filter screen 1002, reduce adhesion, and avoid clogging of the mesh.

[0043] A sealing ring 11 is fixedly connected to the inner wall of the circular hole, and the inner wall of the sealing ring 11 is in close contact with the outer wall of the movable rod 1007.

[0044] By setting the sealing ring 11, the gap between the round hole and the movable rod 1007 can be sealed, making it difficult for water to penetrate into the inside of the cylinder 1003. Specific Implementation Example 2:

[0046] Please see Figure 1 , Figure 2 and Figure 4 As shown, in a preferred embodiment, the rotary cleaning mechanism 12 includes a rotating rod 1201, which is rotatably connected to the liquid storage tank 3 via a bearing. A hand crank 1205 is fixedly connected to the top of the rotating rod 1201, and a scraper 1202 is fixedly connected to the bottom of the rotating rod 1201. The bottom of the scraper 1202 contacts the inner bottom of the liquid storage tank 3. A connecting straight frame 1203 is fixedly connected to the top of the scraper 1202, and a cleaning brush 1204 is fixedly connected to one side of the connecting straight frame 1203. One side of the cleaning brush 1204 contacts the inner wall of the liquid storage tank 3.

[0047] In the specific implementation process, the hand crank 1205 drives the rotating rod 1201 to rotate, which in turn drives the scraper 1202 to rotate along the bottom of the liquid storage tank 3. At the same time, it drives the cleaning brush 1204 to rotate along the inner wall of the liquid storage tank 3, thereby cleaning the impurity particles inside the liquid storage tank 3 and preventing them from remaining inside the liquid storage tank 3. This avoids occupying the liquid storage space and reducing the amount of pre-filled liquid, and is less likely to interfere with the self-priming ability of the self-priming pump body 2, ensuring the normal use of the self-priming pump body 2.

[0048] An elastic rope 1207 is fixedly connected between the inner top and inner bottom of the connecting straight frame 1203, and multiple uniformly distributed rubber balls 1206 are fixedly connected to the outer wall of the elastic rope 1207.

[0049] During the rotation of the connecting straight frame 1203, multiple rubber balls 1206 move under the action of centrifugal force and pull the elastic rope 1207 until they come into contact with and collide with the inner wall of the connecting straight frame 1203. After the collision, the rubber balls 1206 will change their direction of motion due to the collision. At the same time, due to the continuous existence of centrifugal force and the pulling force of the elastic rope 1207 during the rotation, the rubber balls 1206 will collide back and forth between the inner walls on both sides of the connecting straight frame 1203, generating vibration. The vibration reduces the adhesion of impurity particles, so as to facilitate the cleaning of the brush body 1204.

[0050] The bottom of the liquid storage tank 3 is fixedly connected to a discharge pipe 14, and the outer wall of the discharge pipe 14 is fixedly connected to a second control valve 13.

[0051] The wastewater can be discharged after cleaning by means of the discharge pipe 14 and the second control valve 13.

[0052] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0053] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0054] The working principle of this utility model is as follows:

[0055] In use, this invention first connects the liquid injection pipe 6 to the external water pipe and directly to the storage tank. With the first control valve 7, liquid from the storage tank is injected into the storage tank 3 to maintain a certain liquid level. Then, when the self-priming pump 2 operates, water first enters the storage tank 3 through the pumping pipe 4. Simultaneously, large impurities in the water are filtered by the first filter screen 1001. The exhaust pipe 8, in conjunction with the exhaust valve 9, is responsible for venting gas from the storage tank 3. Next, the water inside the storage tank 3 enters the self-priming pump 2 through the water guide pipe 5. Small impurities are filtered and blocked by the second filter screen 1002, preventing them from entering the self-priming pump 2 and causing blockage or damage. During continuous water flow, as the water passes through the first filter screen 1001 and the second filter screen 1002, the accumulation of impurities increases local resistance. At the first filter screen 1001... A pressure difference is formed before and after the second filter screen 1002. This pressure difference pushes the first filter screen 1001 and the second filter screen 1002 to move towards the low-pressure side, i.e., the direction of water flow. This causes the two pairs of connecting rods 1008 and the movable rod 1007 to squeeze the piston plate 1005 into the cylinder 1003 and stretch the spring 1006. When the two pairs of connecting rods 1008 move to contact and collide with the fixed hemisphere 1009, the spring 1006 provides a reverse rebound force through its elastic reset action, forming a reciprocating motion to reduce the adhesion of impurity particles. After the pump stops, the hand crank 1205 drives the rotating rod 1201 to rotate, which causes the scraper 1202 to rotate along the bottom of the liquid storage tank 3. At the same time, it drives the cleaning brush 1204 to rotate along the inner wall of the liquid storage tank 3, thereby cleaning the impurity particles inside the liquid storage tank 3. Then, the sewage is discharged outward through the discharge pipe 14 and the second control valve 13.

[0056] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A self-priming pump with liquid storage function, characterized in that, include: Mounting base (1) and self-priming pump body (2), the self-priming pump body (2) is fixedly connected to the top of mounting base (1), the top of mounting base (1) is fixedly connected to a liquid storage tank (3), and the outer wall of the liquid storage tank (3) is fixedly connected to a water suction pipe (4) and a water guide pipe (5), one end of the water guide pipe (5) is connected to the suction end of the self-priming pump body (2); A filter blocking mechanism (10) is provided in the water pumping pipe (4) and the water guide pipe (5), and the filter blocking mechanism (10) is used to filter impurities. A rotating cleaning mechanism (12) is provided inside the liquid storage tank (3) and is used to clean impurities inside the liquid storage tank (3); The filtering and blocking mechanism (10) includes a first filter screen (1001), the outer wall of which is in close contact with the inner wall of the water pumping pipe (4). The water guide pipe (5) has a second filter screen (1002) in close contact with its inner wall, and the mesh size of the second filter screen (1002) is smaller than that of the first filter screen (1001). A pair of connecting pieces (1004) are fixedly connected inside both the water pumping pipe (4) and the water guide pipe (5), and a cylinder (1003) is fixedly connected between opposite sides of the pair of connecting pieces (1004). A piston plate is slidably connected inside the cylinder (1003). 1005), and a movable rod (1007) is fixedly connected to one side of the piston plate (1005). A spring (1006) is sleeved on the outer wall of the movable rod (1007), and the two ends of the spring (1006) are fixedly connected to one side of the piston plate (1005) and the inner wall of the cylinder (1003), respectively. A circular hole is drilled in the inner wall of the cylinder (1003), and one end of the movable rod (1007) passes through the circular hole and extends to the outside of the cylinder (1003). Two pairs of connecting rods (1008) are fixedly connected between the outer walls of a pair of movable rods (1007) and the first filter screen (1001) and the second filter screen (1002), respectively.

2. A self-priming pump with liquid storage function according to claim 1, characterized in that, The top of the liquid storage tank (3) is fixedly connected to an injection pipe (6) and an exhaust pipe (8). The outer wall of the injection pipe (6) is fixedly connected to a first control valve (7), and the outer wall of the exhaust pipe (8) is fixedly connected to an exhaust valve (9).

3. A self-priming pump with liquid storage function according to claim 1, characterized in that, Two pairs of fixed hemispheres (1009) are fixedly connected to the side of the cylinder (1003) near the connecting rod (1008), and the fixed hemispheres (1009) correspond to the connecting rod (1008).

4. A self-priming pump with liquid storage function according to claim 1, characterized in that, A sealing ring (11) is fixedly connected to the inner wall of the circular hole, and the inner wall of the sealing ring (11) is in close contact with the outer wall of the movable rod (1007).

5. A self-priming pump with liquid storage function according to claim 1, characterized in that, The rotating cleaning mechanism (12) includes a rotating rod (1201), which is rotatably connected to the liquid storage tank (3) via a bearing. A hand crank (1205) is fixedly connected to the top of the rotating rod (1201). A scraper (1202) is fixedly connected to the bottom of the rotating rod (1201), and the bottom of the scraper (1202) is in contact with the inner bottom of the liquid storage tank (3). A connecting straight frame (1203) is fixedly connected to the top of the scraper (1202), and a cleaning brush (1204) is fixedly connected to one side of the connecting straight frame (1203). One side of the cleaning brush (1204) is in contact with the inner wall of the liquid storage tank (3).

6. A self-priming pump with liquid storage function according to claim 5, characterized in that, An elastic rope (1207) is fixedly connected between the inner top and inner bottom of the connecting straight frame (1203), and a plurality of uniformly distributed rubber balls (1206) are fixedly connected to the outer wall of the elastic rope (1207).

7. A self-priming pump with liquid storage function according to claim 1, characterized in that, The bottom end of the liquid storage tank (3) is fixedly connected to a discharge pipe (14), and the outer wall of the discharge pipe (14) is fixedly connected to a second control valve (13).

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