Self-priming pump with external filter assembly

Abstract

The utility model discloses a self-priming pump with an external filtering assembly, which comprises a base, a pump body is fixedly arranged on the upper surface of the base, a filtering mechanism is arranged on the upper surface of a butt joint plate, and a filtering piece can be conveniently replaced in a modularized installation mode. According to the self-priming pump with the external filtering assembly, the mode that the filtering box is installed in a modularized mode is adopted, when the filtering box is replaced, only the cover plate needs to be rotated, the filtering box is pulled out through the suction cup, the filtering box does not need to be disassembled complexly, the filtering box replacing speed is increased, meanwhile, the service life of the filtering box is prolonged, and the cost is reduced. A water outlet pressure monitoring mechanism is arranged on the liquid outlet pipe, so that a worker can observe the sliding degree of the indicating plate under the action of pressure and judge the blocking degree of the filter screen in the filter box at the moment, and the worker can conveniently replace the filter box in time when the filter screen in the filter box is blocked; and the process of frequently pulling out the filter cartridge to check the filter screen is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of self-priming pumps, in particular to a self-priming pump with an external filtering component. Background Art

[0002] As a common fluid conveying equipment, self-priming pumps have been widely used in industry, agriculture, civil and other fields. Traditional self-priming pumps usually directly suck the liquid to be conveyed into the pump body. However, in actual applications, due to the diversity and complexity of liquid sources, they often contain foreign matter such as impurities, particles, fibers, etc. After these foreign matter enter the pump body, they may cause wear and blockage of the pump, reduce the performance and service life of the pump, and increase maintenance costs and downtime. In order to solve this problem, some self-priming pumps use built-in filtering devices, but the built-in filtering devices have the defects of limited filtering area, inconvenient cleaning and replacement, etc. In addition, the built-in filter device is prone to cause a large pressure loss in the pump during the filtration process, affecting the self-priming performance and flow of the self-priming pump. With the continuous development of technology and the continuous improvement of users' requirements for the performance of self-priming pumps, self-priming pumps with external filter components have emerged. The external filter component can effectively increase the filtration area and improve the filtration efficiency. At the same time, it is easy to clean and replace, reducing the impact on the internal structure of the pump body. However, the external filter component still needs to be disassembled when replacing the filter element. Frequent replacement of the filter element will cause the housing of the filter component to suffer greater wear during the disassembly and installation process, which is not conducive to extending the service life of the filter component. Utility Model Content

[0003] The utility model aims to provide a self-priming pump with an external filter assembly to solve the problem in the above background technology that the filter assembly still needs to be disassembled when replacing the filter element.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-priming pump with an external filter component, comprising a base, a pump body is fixedly arranged on the upper surface of the base, and a docking plate is fixedly installed on one side of the base by bolts, and a filter mechanism is arranged on the upper surface of the docking plate, so that the filter element can be conveniently replaced through modular installation.

[0005] Preferably, the filtering mechanism includes: a filtering box. In the middle of one end side surface of the filtering box, a liquid outlet pipe is fixedly arranged. A cavity is formed in the middle of the filtering box, and a partition plate is fixedly arranged inside the cavity in the middle of the filtering box. Sealing rings are respectively arranged on both sides of the partition plate. One end of one of the sealing rings is fixedly connected to a liquid inlet pipe, and a clamping block is fixedly arranged on the outer surface of one end of the liquid inlet pipe. A cavity is formed inside the side surface of the filtering box, and a communication hole is formed between the cavity on the side surface of the filtering box and the cavity of the filtering box where the partition plate is located. A filtering box is arranged inside the cavity on the side surface of the filtering box, and a filter screen is fixedly arranged inside the filtering box. A connection hole is formed at one end of the filtering box facing the communication hole. A rotatable switching cover plate is installed on the side surface of the filtering box, and a relief groove is formed on the outer surface of the switching cover plate.

[0006] With the above technical solution, the filtering box can be conveniently and quickly replaced without disassembling the filtering box.

[0007] Preferably, the outer surface of the sealing ring fits with the inner side surface of the cavity of the filtering box where the partition plate is located, and the two sealing rings are fixedly connected. One end where the two sealing rings are fixedly connected penetrates through the partition plate, and the end where the two sealing rings are fixedly connected is in sliding friction connection with the partition plate.

[0008] With the above technical solution, the sealing ring can slide to close the communication hole.

[0009] Preferably, the liquid inlet pipe is snap-fitted with the switching cover plate through the clamping block, the switching cover plate fits with the side surface of the filtering box, and the relief groove is arranged in a staggered manner with the filtering box.

[0010] With the above technical solution, the relief groove can ensure the stable limit of the switching cover plate on the filtering box through the staggered arrangement with the filtering box.

[0011] Preferably, the connection hole is arranged opposite to the communication hole, the two communication holes are respectively located on both sides of the partition plate, and the two connection holes are respectively located on both sides of the filter screen.

[0012] With the above technical solution, the filter screen can filter the water sucked into one side connection hole and discharge the water through the connection hole on the other side.

[0013] Preferably, a water outlet pressure monitoring mechanism is arranged on the outer surface of the liquid outlet pipe to monitor the flow state of the filter screen in real time by means of pressure monitoring.

[0014] With the above technical solution, the operator can monitor the blockage condition of the filter screen without pulling out the filtering box.

[0015] Preferably, the water outlet pressure monitoring mechanism includes: a detection seat, which is fixedly arranged on the outer surface of the liquid outlet pipe, and the lower end of the detection seat passes through the inner surface of the liquid outlet pipe, the upper end of the detection seat is connected to a piston rod, and an indicator plate is rotatably installed on the upper end of the piston rod, an adjustment ring is threadedly connected to the upper end side surface of the detection seat, and a scale is fixedly arranged on the side surface of the detection seat, a spring is connected between the lower surface of the indicator plate and the upper surface of the adjustment ring, the piston rod and the detection seat are connected by sliding friction, and the upper end side surface of the indicator plate fits the side surface of the scale.

[0016] By adopting the above technical solution, the degree to which the piston rod slides under the influence of pressure can be adjusted.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the self-priming pump of the external filter assembly:

[0018] 1. The filter box is installed in a modular way, so that when replacing the filter box, you only need to turn the cover and pull the filter box out through the suction cup, without the need for complex disassembly of the filter box, which improves the speed of replacing the filter box and extends the service life of the filter box;

[0019] 2. Furthermore, by providing a water outlet pressure monitoring mechanism on the liquid outlet pipe, the staff can observe the extent to which the indicator plate slides under the action of pressure, thereby judging the degree of blockage of the filter in the filter box at this time, so that the staff can replace the filter box in time when the filter in the filter box is blocked, eliminating the process of frequently pulling out the filter box to check the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the filter box, the switching cover plate and the clearance groove of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the filter box and the liquid outlet pipe of the utility model;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the cross-section surface connecting the filter box and the liquid outlet pipe of the utility model;

[0024] Figure 5 This is a three-dimensional structural schematic diagram of the connection section of the filter box, the closed ring and the liquid inlet pipe of the utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the utility model in an overall disassembled state;

[0026] Figure 7This is a schematic three-dimensional structure diagram of the connection cross-section between the liquid outlet pipe and the detection seat of the present utility model.

[0027] In the figure: 1, base; 2, pump body; 3, docking plate; 4, filter box; 5, liquid outlet pipe; 6, partition plate; 7, sealing ring; 8, liquid inlet pipe; 9, clamping block; 10, communication hole; 11, filter box; 12, filter screen; 13, connection hole; 14, switching cover plate; 15, relief groove; 16, detection seat; 17, piston rod; 18, indicator plate; 19, adjusting ring; 20, scale. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-7 , the present utility model provides a technical solution: a self-priming pump with an external filtration component.

[0030] Embodiment 1:

[0031] In this embodiment, it is disclosed that: on the upper surface of the base 1, a pump body 2 is fixedly arranged, and on one side of the base 1, a docking plate 3 is fixedly installed through bolts. A filtration mechanism is arranged on the upper surface of the docking plate 3, and the filtration components can be conveniently replaced by a modular installation method;

[0032] The filtration mechanism includes: a filter box 4. In the middle of one end side surface of the filter box 4, a liquid outlet pipe 5 is fixedly arranged. A cavity is formed in the middle of the filter box 4, and a partition plate 6 is fixedly arranged inside the cavity in the middle of the filter box 4. Sealing rings 7 are respectively arranged on both sides of the partition plate 6. One end of one of the sealing rings 7 is fixedly connected to a liquid inlet pipe 8, and a clamping block 9 is fixedly arranged on the outer surface of one end of the liquid inlet pipe 8. A cavity is formed inside the side surface of the filter box 4, and a communication hole 10 is formed between the cavity on the side surface of the filter box 4 and the cavity of the filter box 4 where the partition plate 6 is located. A filter box 11 is arranged inside the cavity on the side surface of the filter box 4, and a filter screen 12 is fixedly arranged inside the filter box 11. A connection hole 13 is formed at one end of the filter box 11 facing the communication hole 10. A rotatable switching cover plate 14 is installed on the side surface of the filter box 4, and a relief groove 15 is formed on the outer surface of the switching cover plate 14;

[0033] The outer surface of the closed ring 7 is in contact with the inner surface of the cavity of the filter box 4 where the partition plate 6 is located, and the two closed rings 7 are fixedly connected, and one end of the two closed rings 7 that is fixedly connected penetrates the partition plate 6, and one end of the two closed rings 7 that is fixedly connected is in sliding friction connection with the partition plate 6;

[0034] The liquid inlet pipe 8 is connected to the switching cover plate 14 by means of the clamping block 9, and the switching cover plate 14 is in contact with the side surface of the filter box 4, and the clearance groove 15 and the filter box 11 are staggered.

[0035] The connecting hole 13 is arranged opposite to the communicating hole 10, and the two communicating holes 10 are respectively located on both sides of the partition plate 6, and the two connecting holes 13 are respectively located on both sides of the filter screen 12;

[0036] During use, the water pipe is connected to the liquid inlet pipe 8, and then the liquid outlet pipe 5 is connected to the water inlet of the pump body 2 on the base 1 through a hose. At this time, when the pump body 2 sucks water during operation, the water flows through the connecting hole 10 and the connecting hole 13 on one side through the liquid inlet pipe 8 in sequence into the filter box 11. At this time, the filter screen 12 in the filter box 11 filters the water and outputs the water to the other side of the partition plate 6 through the connecting hole 13 and the connecting hole 10 on the other side. Finally, the water is sucked by the pump body 2 through the liquid outlet pipe 5 and the hose. When the filter box 11 needs to be replaced, the liquid inlet pipe 8 is slid so that the liquid inlet pipe 8 drives the block 9 to disengage from the engagement with the switching cover 14, so that the switching cover 14 can drive the give way slot 15 to rotate. At this time, since the closing ring 7 slides to the connecting hole 10 to close the connecting hole 10, when the staff sucks the filter box 11 through the suction cup and pulls out the filter box 11, the water will not overflow. When the filter assembly is not needed, the bolts connecting the base 1 and the docking plate 3 can be removed to remove the filter box 4 from the pump body 2.

[0037] Embodiment 2:

[0038] This embodiment is based on the embodiment 1 and discloses that: a water outlet pressure monitoring mechanism is provided on the outer surface of the liquid outlet pipe 5, and the flow state of the filter screen 12 is monitored in real time by means of pressure monitoring;

[0039] The outlet water pressure monitoring mechanism comprises: a detection seat 16, the detection seat 16 is fixedly arranged on the outer surface of the liquid outlet pipe 5, and the lower end of the detection seat 16 penetrates the inner surface of the liquid outlet pipe 5, the upper end of the detection seat 16 is connected with a piston rod 17, and the upper end of the piston rod 17 is rotatably mounted with an indicator plate 18, the upper end side surface of the detection seat 16 is threadedly connected with an adjustment ring 19, and the side surface of the detection seat 16 is fixedly provided with a scale 20, a spring is connected between the lower surface of the indicator plate 18 and the upper surface of the adjustment ring 19, the piston rod 17 and the detection seat 16 are in sliding friction connection, and the upper end side surface of the indicator plate 18 is in contact with the side surface of the scale 20;

[0040] During the process of the water body being output through the liquid outlet pipe 5, with the change of the internal fluid pressure of the liquid outlet pipe 5, at this time, the piston rod 17 slides relative to the detection seat 16 under the action of pressure. The internal pressure level of the liquid outlet pipe 5 at this time is judged by the position of the indicating plate 18 relative to the scale 20. By turning the adjusting ring 19, the sliding degree of the piston rod 17 affected by the pressure is adjusted by adjusting the pulling force of the spring on the indicating plate 18 by the adjusting ring 19, so as to meet the usage requirements of the pump body 2 under different working conditions.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-priming pump with an external filter assembly, comprising a base (1), a pump body (2) being fixedly arranged on the upper surface of the base (1), and a docking plate (3) being fixedly mounted on one side of the base (1) by bolts, characterized in that: The upper surface of the docking plate (3) is provided with a filtering mechanism, which facilitates the replacement of the filter element through modular installation; The filtering mechanism comprises: a filtering box (4), a liquid outlet pipe (5) being fixedly arranged in the middle of a side surface of one end of the filtering box (4), a cavity being opened in the middle of the filtering box (4), a partition plate (6) being fixedly arranged inside the cavity in the middle of the filtering box (4), and closed rings (7) being arranged on both sides of the partition plate (6), one end of the closed ring (7) being fixedly connected to a liquid inlet pipe (8), and a clamping block (9) being fixedly arranged on the outer surface of one end of the liquid inlet pipe (8), and the inside of the side surface of the filtering box (4) being opened. A cavity is provided, and a communication hole (10) is provided between the cavity on the side surface of the filter box (4) and the cavity of the filter box (4) where the partition plate (6) is located. A filter box (11) is provided inside the cavity on the side surface of the filter box (4), and a filter screen (12) is fixedly provided inside the filter box (11), and a connection hole (13) is provided at one end of the filter box (11) facing the communication hole (10). A rotatable switching cover plate (14) is installed on the side surface of the filter box (4), and a clearance groove (15) is provided on the outer surface of the switching cover plate (14).

2. A self-priming pump with an external filter assembly according to claim 1, characterized in that: The outer surface of the closed ring (7) fits with the inner surface of the cavity of the filter box (4) where the partition plate (6) is located, and the two closed rings (7) are fixedly connected, and one end of the two closed rings (7) that is fixedly connected passes through the partition plate (6), and one end of the one closed ring (7) that is fixedly connected is in sliding friction connection with the partition plate (6).

3. The self-priming pump with an external filter assembly according to claim 1, characterized in that: The liquid inlet pipe (8) is connected to the switching cover plate (14) by means of a clamping block (9), and the switching cover plate (14) is in contact with the side surface of the filter box (4), and the clearance groove (15) and the filter box (11) are arranged in a staggered manner.

4. The self-priming pump with an external filter assembly according to claim 1, characterized in that: The connection holes (13) are arranged opposite to the communication holes (10), and the two communication holes (10) are respectively located on both sides of the partition plate (6), and the two connection holes (13) are respectively located on both sides of the filter screen (12).

5. The self-priming pump with an external filter assembly according to claim 1, characterized in that: The outer surface of the liquid outlet pipe (5) is provided with a water outlet pressure monitoring mechanism, which monitors the flow state of the filter screen (12) in real time by means of pressure monitoring.

6. A self-priming pump with an external filter assembly according to claim 5, characterized in that: The water outlet pressure monitoring mechanism comprises: a detection seat (16), the detection seat (16) being fixedly arranged on the outer surface of the liquid outlet pipe (5), and the lower end of the detection seat (16) passing through the inner surface of the liquid outlet pipe (5), the upper end of the detection seat (16) being connected to a piston rod (17), and an indicator plate (18) being rotatably mounted on the upper end of the piston rod (17), an adjustment ring (19) being threadedly connected to the upper end side surface of the detection seat (16), and a scale (20) being fixedly arranged on the side surface of the detection seat (16), a spring being connected between the lower surface of the indicator plate (18) and the upper surface of the adjustment ring (19), the piston rod (17) and the detection seat (16) being in sliding friction connection, and the upper end side surface of the indicator plate (18) being in contact with the side surface of the scale (20).

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