Quick exhaust device of self-suction centrifugal pump

Abstract

The utility model relates to the field of centrifugal pumps, and discloses a quick exhaust device of a self-suction centrifugal pump, which comprises a mounting plate, a centrifugal pump main body is mounted at the top of the mounting plate, an exhaust pipe is fixedly connected to the outer side of the centrifugal pump main body, and a leakage-proof component is arranged on the outer side of the exhaust pipe. The end, away from the centrifugal pump body, of the exhaust pipe is in threaded connection with a nut, a connecting pipe is fixedly connected to the outer side of the exhaust pipe, and a collecting assembly is arranged at the end, away from the exhaust pipe, of the connecting pipe. According to the utility model, the exhaust pipe, the connecting pipe, the collecting box, the filter screen, the collecting drawer, the pull rod, the baffle plate, the thin shell, the spring and other structures are matched with one another, so that discharged liquid can be collected, the liquid is prevented from being discharged at will, the environmental protection requirement is met, the cleanliness and safety of the working environment are guaranteed, and the filter screen is easy and efficient to clean and install; and the maintenance cost and the maintenance time are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal pump field especially quick exhaust device of self-priming centrifugal pump. BACKGROUND

[0002] Self-priming centrifugal pump is a kind of pump that can automatically suck liquid and deliver liquid. It has a unique self-priming structure, and only needs to fill the pump shell with liquid before starting. Without additional air extraction equipment, it can quickly suck liquid and run stably, and is widely used in agricultural irrigation, industrial drainage and other fields.

[0003] In the prior art, the quick exhaust device of the self-priming centrifugal pump often directly discharges the liquid of the centrifugal pump, which not only pollutes the environment and does not meet the environmental protection standards, but also makes the working area wet and messy, causing safety hazards such as slipping and equipment corrosion, and is difficult to ensure the cleanliness and safety of the working environment.

[0004] To solve the above problems, a quick exhaust device for self-priming centrifugal pump is proposed. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a quick exhaust device for self-priming centrifugal pump, which aims to improve the problem that the quick exhaust device for self-priming centrifugal pump in the prior art often directly discharges liquid, which pollutes the environment and does not meet the environmental protection standards, and causes the working area to be wet and messy, resulting in safety hazards such as slipping and equipment corrosion, and is difficult to ensure the cleanliness and safety of the environment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a quick exhaust device for self-priming centrifugal pump, comprising a mounting plate, a centrifugal pump body is installed on the top of the mounting plate, an exhaust pipe is fixedly connected to the outer side of the centrifugal pump body, a leakage prevention assembly is arranged on the outer side of the exhaust pipe, a nut is threadedly connected to the end of the exhaust pipe away from the centrifugal pump body, a connecting pipe is fixedly connected to the outer side of the exhaust pipe, and a collection assembly is arranged on the end of the connecting pipe away from the exhaust pipe.

[0007] The collection assembly comprises a collection box, the collection box is fixedly connected to the top of the mounting plate, a plurality of air outlets are formed in the upper side of the interior of the collection box, a filter screen is slidably connected in the interior of the collection box, a collection drawer is slidably connected to the inner bottom wall of the collection box, two thin shells are fixedly connected to the outer side of the collection box, a anti-dropping plate is fixedly connected to the top of the thin shell, a baffle is slidably connected in the interior of the thin shell, a pull rod is fixedly connected to the interior of the baffle, a blocking plate is arranged on the top of the baffle, and a spring is sleeved on the outer side of the pull rod.

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

[0009] The leak-proof component includes a funnel shell, the outer side of which is fixedly connected to the top of the exhaust pipe.

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

[0011] One end of the spring is fixedly connected to the inner wall of the thin shell, and the other end of the spring is fixedly connected to the outer side of the baffle.

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

[0013] The outside of the pull rod passes through the collection box and is inserted into the filter screen.

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

[0015] The outer side of the barrier plate is slidably connected to the outer side of the anti-detachment plate, and the lower part of the outer side of the barrier plate is slidably connected to the inside of the thin shell.

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

[0017] The outer side of the pull rod is slidably connected to the inside of the thin shell.

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

[0019] A valve is installed on the outside of the connecting pipe.

[0020] As a further description of the above technical solution:

[0021] A water inlet is fixedly connected to the top of the collection box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by opening the valve, the liquid discharged from the centrifugal pump body enters the collection box through the exhaust pipe and connecting pipe. After being filtered by the filter screen, it flows into the collection drawer. After discharge, the valve is closed, and the outlet pipe valve is opened, allowing the centrifugal pump body to be used normally. When cleaning the filter screen, pulling the lever causes the baffle to slide inside the thin shell and compress the spring, causing the lever to disengage from the filter screen. The filter screen slides back into the thin shell under gravity, preventing the lever from re-inserting. After cleaning the filter screen, it is aligned with the collection box and slid in. Pulling up the baffle plate causes the baffle and lever to reset, and the lever is re-inserted into the filter screen. This enables the collection of discharged liquid, preventing indiscriminate discharge, meeting environmental protection requirements, and ensuring a clean and safe working environment. Furthermore, the cleaning and installation process of the filter screen is easy and efficient, greatly reducing maintenance costs and time.

[0024] 2. In this utility model, by connecting the inlet and outlet pipes of the centrifugal pump body and the power supply, closing the valve of the outlet pipe, and then unscrewing the nut to add water to the funnel shell, water is prevented from easily spilling out when adding water. The funnel shell's flared shape allows the water to naturally converge when poured in, reducing the possibility of water splashing. Attached Figure Description

[0025] Figure 1 This is a perspective view of the rapid exhaust device for the self-priming centrifugal pump proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the funnel shell structure of the rapid exhaust device for the self-priming centrifugal pump proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the collection drawer of the rapid exhaust device for the self-priming centrifugal pump proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Centrifugal pump body; 2. Exhaust pipe; 3. Nut; 4. Funnel shell; 5. Connecting pipe; 6. Valve; 7. Collection box; 8. Water inlet; 9. Air outlet; 10. Filter screen; 11. Collection drawer; 12. Thin shell; 13. Anti-detachment plate; 14. Barrier plate; 15. Baffle; 16. Pull rod; 17. Spring; 18. Mounting plate. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 - Figure 4 An embodiment of this utility model provides a rapid exhaust device for a self-priming centrifugal pump, including a mounting plate 18, a centrifugal pump body 1 mounted on the top of the mounting plate 18, an exhaust pipe 2 fixedly connected to the outside of the centrifugal pump body 1, a leak-proof component provided on the outside of the exhaust pipe 2, a nut 3 threadedly connected to the end of the exhaust pipe 2 away from the centrifugal pump body 1, a connecting pipe 5 fixedly connected to the outside of the exhaust pipe 2, and a collection component provided at the end of the connecting pipe 5 away from the exhaust pipe 2.

[0033] The collection assembly includes a collection box 7, the bottom of which is fixedly connected to the top of the mounting plate 18. Multiple air vents 9 are provided on the upper side of the inside of the collection box 7. A filter screen 10 is slidably connected inside the collection box 7. A collection drawer 11 is slidably connected to the bottom wall of the collection box 7. Two thin shells 12 are fixedly connected to the outside of the collection box 7. An anti-detachment plate 13 is fixedly connected to the top of the thin shell 12. A baffle 15 is slidably connected inside the thin shell 12. A pull rod 16 is fixedly connected inside the baffle 15. A barrier plate 14 is provided on the top of the baffle 15. A spring 17 is sleeved on the outside of the pull rod 16.

[0034] Specifically, mounting plate 18 is used to support and fix centrifugal pump body 1; centrifugal pump body 1 provides power for liquid transportation; exhaust pipe 2 is used to discharge gas inside centrifugal pump body 1; leak-proof component prevents leakage when exhaust pipe 2 is venting; nut 3 is used to seal the end of exhaust pipe 2 away from centrifugal pump body 1; connecting pipe 5 connects exhaust pipe 2 to collection component, serving as gas transmission channel; collection box 7 is used to collect liquid transmitted through connecting pipe 5; vent hole 9 allows gas to be discharged from collection box 7; filter screen 10 is used to filter impurities in liquid; collection drawer 11 collects filtered liquid; thin shell 12 provides installation space for components such as baffle 15; anti-detachment plate 13 prevents barrier plate 14 from detaching from thin shell 12; baffle 15 slides under the action of pull rod 16, controlling the fixing and detachment of filter screen 10; pull rod 16 is used to drive baffle 15 to slide, realizing the installation and removal of filter screen 10; barrier plate 14 prevents baffle 15 from moving excessively; spring 17 is used to provide elasticity to assist pull rod 16 and baffle 15 in resetting.

[0035] Reference Figure 2 The leak-proof component includes a funnel shell 4, which is fixedly connected to the top of the exhaust pipe 2 on its outer side.

[0036] Specifically, the funnel shell 4 is fixedly connected to the top of the exhaust pipe 2 as a leak-proof component. During the process of adding water or venting the centrifugal pump body 1, its funnel shape guides the water flow to converge naturally, reducing water splashing.

[0037] Reference Figure 1 - Figure 4 One end of spring 17 is fixedly connected to the inner wall of thin shell 12, and the other end of spring 17 is fixedly connected to the outside of baffle 15. The outside of pull rod 16 passes through collection box 7 and is inserted into filter screen 10. The outside of baffle plate 14 is slidably connected to the outside of anti-detachment plate 13. The lower part of the outside of baffle plate 14 is slidably connected to the inside of thin shell 12. The outside of pull rod 16 is slidably connected to the inside of thin shell 12. A valve 6 is provided on the outside of connecting pipe 5. A water inlet 8 is fixedly connected to the top of collection box 7.

[0038] Specifically, spring 17 provides elastic force to assist the pull rod 16 and baffle 15 in resetting; pull rod 16 passes through collection box 7 and is inserted into filter screen 10 to drive baffle 15 to slide, thereby enabling the removal and installation of filter screen 10; baffle plate 14 prevents baffle 15 from moving excessively; thin shell 12 provides sliding space for components such as pull rod 16 and baffle 15; valve 6 on the outside of connecting pipe 5 controls the flow and cut-off of liquid; water inlet 8 on top of collection box 7 is used to inject water into collection box 7.

[0039] Working principle: When using, first connect the inlet and outlet pipes of the centrifugal pump body 1 and the power supply. Then close the valve 6 of the outlet pipe, unscrew the nut 3, pull out the collection tray 11 and add water to the funnel shell 4. This prevents water from spilling when adding water. The funnel shell 4's flared shape allows the water to naturally converge when poured in, reducing splashing. The water enters the centrifugal pump body 1 through the exhaust pipe 2, fills the tray, and is then returned to the collection tray 11. Then, screw the nut 3 back on and open the valve 6. The discharged liquid enters the connecting pipe 5 through the exhaust pipe 2, then enters the collection box 7 and is filtered through the filter screen 10. Finally, it enters the collection drawer 11. After discharge, close the valve 6 and open the valve 6 of the outlet pipe. At this point, the centrifugal pump body 1 can be used normally.

[0040] When the filter screen 10 needs to be cleaned, pull the lever 16. The lever 16 causes the baffle 15 to slide inside the thin shell 12, compressing the spring 17. At the same time, the lever 16 completely leaves the inside of the filter screen 10. At this time, under the action of gravity, it slides into the inside of the thin shell 12, preventing the baffle 15 from driving the lever 16 under the action of the spring 17. It is then re-inserted into the inside of the filter screen 10. The filter screen 10 is then removed for cleaning. After cleaning, it is aligned with the collection box 7 and slid in. Then, the baffle plate 14 is pulled upward. Under the elastic force of the spring 17, the baffle 15 and the lever 16 are reset, and the lever 16 is re-inserted into the inside of the filter screen 10.

[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 rapid venting device for a self-priming centrifugal pump, comprising a mounting plate (18), characterized in that: The mounting plate (18) is equipped with a centrifugal pump body (1) on top. An exhaust pipe (2) is fixedly connected to the outside of the centrifugal pump body (1). A leak-proof component is provided on the outside of the exhaust pipe (2). A nut (3) is threadedly connected to the end of the exhaust pipe (2) away from the centrifugal pump body (1). A connecting pipe (5) is fixedly connected to the outside of the exhaust pipe (2). A collection component is provided on the end of the connecting pipe (5) away from the exhaust pipe (2). The collection assembly includes a collection box (7), the bottom of which is fixedly connected to the top of the mounting plate (18). Multiple air vents (9) are provided on the upper side inside the collection box (7). A filter screen (10) is slidably connected inside the collection box (7). A collection drawer (11) is slidably connected to the bottom wall inside the collection box (7). Two thin shells (12) are fixedly connected to the outside of the collection box (7). An anti-detachment plate (13) is fixedly connected to the top of the thin shell (12). A baffle (15) is slidably connected inside the thin shell (12). A pull rod (16) is fixedly connected inside the baffle (15). A barrier plate (14) is provided on the top of the baffle (15). A spring (17) is sleeved on the outside of the pull rod (16).

2. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: The leak-proof assembly includes a funnel shell (4), the outer side of which is fixedly connected to the top of the exhaust pipe (2).

3. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: One end of the spring (17) is fixedly connected to the inner wall of the thin shell (12), and the other end of the spring (17) is fixedly connected to the outside of the baffle (15).

4. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: The pull rod (16) extends through the collection box (7) and is inserted into the filter screen (10).

5. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: The outer side of the barrier plate (14) is slidably connected to the outer side of the anti-detachment plate (13), and the lower outer side of the barrier plate (14) is slidably connected to the inside of the thin shell (12).

6. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: The pull rod (16) is slidably connected to the inside of the thin shell (12) on the outside.

7. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: A valve (6) is provided on the outside of the connecting pipe (5).

8. The rapid exhaust device for the self-priming centrifugal pump according to claim 1, characterized in that: The top of the collection box (7) is fixedly connected to a water inlet (8).

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