Filter in front of pump
By installing floats and rotating blades on the pre-pump filter, combined with axial flow suction and high-pressure nozzle design, the problem of easy clogging of traditional pre-pump filters is solved, achieving self-cleaning and high-efficiency filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAZHOU LONGQI FURNITURE CO LTD
- Filing Date
- 2024-12-04
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional pre-pump filters tend to sink to the bottom of the water body, causing impurities to adhere, making them prone to clogging and lacking self-cleaning function.
A pre-pump filter with a float and rotating blades was designed. The float makes the filter float on the water surface, and the rotating blades and stainless steel filter screen achieve self-cleaning. Combined with the design of axial flow water suction and high-pressure nozzle, swirling power is generated for filtration.
It effectively prevents clogging, achieves self-cleaning function, ensures water purification effect, and improves the efficiency and reliability of the filter.
Smart Images
Figure CN224156519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and in particular to pre-pump filters. Background Technology
[0002] Filters are an indispensable device in pipelines transporting media. They are typically installed at the inlet end of pressure reducing valves, pressure relief valves, and level control valves, facilitating the filtering of other equipment. A filter consists of a cylinder, a stainless steel filter screen, a drain section, a transmission device, and an electrical control system. When water to be treated passes through the filter cylinder, impurities are blocked. Cleaning is simple: just remove the detachable filter cylinder, clean it, and reinstall it. Therefore, use and maintenance are extremely convenient.
[0003] A pre-pump filter is a water purification device designed to make the intake water purer during irrigation and fertilization. Traditional pre-pump filters are generally simple cylinders with filter screens. They are placed directly in the water, but they tend to sink to the bottom, allowing more impurities to adhere to the surface, which can easily cause clogging. They also do not have a self-cleaning function. Utility Model Content
[0004] The purpose of this utility model is to provide a pre-pump filter, which solves the problems that pre-pump filters are generally simple cylinders with filter screens. They are usually placed directly in the water, but they tend to sink to the bottom, resulting in a lot of impurities adhering directly to the surface, causing blockages, and they do not have a self-cleaning function.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pre-pump filter includes a filter housing with a support frame on its exterior. A float is mounted on the surface of the support frame. The filter housing is cylindrical. Left-hand rotating blades are fixedly mounted at both ends of the filter housing. Nine fixed semi-punched holes are provided on the surface of each left-hand rotating blade. A main shaft and a spindle are fixedly mounted at the ends of the two left-hand rotating blades, respectively. The spindle is connected to the inner cavity of the filter housing. A first bearing and a second bearing are positioned on the surface of the support frame relative to the main shaft and the spindle. The filter housing is rotatably connected to the support frame via the main shaft, the spindle, the first bearing, and the second bearing.
[0007] Preferably, the opening is tilted at an angle of 30 degrees, and the distance between the two left-hand rotating blades is 100 mm, so that the water generates swirling force in the axial flow.
[0008] Preferably, the surface of the bracket is provided with bolts, and the surface of the float is provided with screw holes, and the float is mounted on the surface of the bracket by bolts.
[0009] Preferably, both the first and second cleaning screens are stainless steel filter screens made using a main body drop hole tapping process.
[0010] Preferably, the filter housing and support are made of iron plate cut into shape and then hot-dip galvanized.
[0011] This utility model has at least the following beneficial effects:
[0012] The filter housing is equipped with a weight-bearing float, which allows it to float on the upper layer of a pond or river during operation, thus drawing in the best water quality from the upper layer. The first and second cleaning screens provide a good filtration effect. The main shaft, combined with the high-pressure inlet after the pump, has two bearing positions in the middle that support the rotation and cleaning of the filter housing. Axial flow water intake is used, which causes high-pressure water to be sprayed from nine evenly distributed high-pressure nozzles. The spray direction is tilted upward at 40° in the same direction as the rotation of the filter housing, so that the water flow assists the rotation of the filter housing. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Side view;
[0016] Figure 3 This utility model Figure 1 Schematic diagram of the structure at point A in the middle;
[0017] Figure 4 This utility model Figure 2 Schematic diagram of the structure at point A in the middle.
[0018] In the diagram: 1. Filter housing; 2. Bracket; 3. Float; 4. Bolt; 5. First bearing; 6. Main shaft; 7. Shaft tube; 8. First cleaning screen; 9. Second cleaning screen; 10. Left rotating blade; 11. Second bearing. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Reference Figure 1-4 A pre-pump filter includes a filter housing 1, a support 2 on the outside of the filter housing 1, floats 3 on the surface of the support 2, the filter housing 1 is cylindrical, left rotating blades 10 are fixedly installed at both ends of the filter housing 1, the surface of the left rotating blades 10 is provided with nine fixed semi-punched holes, the ends of the two left rotating blades 10 are respectively fixedly installed with a main shaft 6 and a spindle tube 7, the spindle tube 7 is connected to the inner cavity of the filter housing 1, the surface of the support 2 is provided with a first bearing 5 and a second bearing 11 relative to the position of the main shaft 6 and the spindle tube 7, and the filter housing 1 is rotatably connected to the support 2 through the main shaft 6, the spindle tube 7, the first bearing 5 and the second bearing 11.
[0025] Furthermore, the opening is tilted at an angle of 30 degrees, and the distance between the two left-hand rotating blades is 100 mm, so that the water generates swirling power in the axial flow.
[0026] Furthermore, bolts 4 are provided on the surface of the support 2, and screw holes are provided on the surface of the float 3. The float 3 is installed on the surface of the support 2 by bolts 4.
[0027] Furthermore, both the first cleaning mesh 8 and the second cleaning mesh 9 are stainless steel filter meshes made using a main body drop hole tapping process.
[0028] Furthermore, the filter housing 1 and the bracket are made of iron plate cut into shape and then hot-dip galvanized.
[0029] In summary, the filter housing 1 is equipped with a weight-bearing float 3, which allows it to float on the upper layer of a pond or river during operation, thus drawing in the best water quality from the upper layer. The filter housing 1 is connected to the pump body pipe via the central tube 7. The first cleaning screen 8 and the second cleaning screen 9 provide a good filtration effect, purifying the water intake. The main shaft 6, combined with the high-pressure water inlet after the pump, has two bearing positions in the middle that support the rotation and cleaning of the filter housing 1. Axial flow water intake is adopted, passing through two sets of left-hand rotating blades 10, each with 9 holes and opening outwards by 30°, generating axial flow power in the water flow. The first bearing 5 and the second bearing 11 roll and drive the filter housing 1 to rotate in the opposite direction of the axial flow. An outlet is provided at the water outlet after the pump. Using the water pressure after the pump, the water enters the central tube 7 before the pump through the pipe, causing high-pressure water to be sprayed out from nine evenly distributed high-pressure nozzles. The spray direction is tilted upwards at 40° in the same direction as the rotation of the filter housing, so that the water flow assists the rotation of the filter housing.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pre-pump filter, characterized in that, The filter housing (1) includes a filter housing (1), a support (2) is provided on the outside of the filter housing (1), a float (3) is provided on the surface of the support (2), the filter housing (1) is configured as a cylindrical structure, and left rotating blades (10) are fixedly installed at both ends of the filter housing (1). The surface of the left rotating blades (10) is provided with nine fixed semi-punched holes. The ports of the two left rotating blades (10) are respectively fixedly installed with a main shaft (6) and a spindle tube (7). The spindle tube (7) is connected to the inner cavity of the filter housing (1). The surface of the support (2) is provided with a first bearing (5) and a second bearing (11) relative to the position of the main shaft (6) and the spindle tube (7). The filter housing (1) is rotatably connected to the support (2) through the main shaft (6), the spindle tube (7), the first bearing (5) and the second bearing (11).
2. The pre-pump filter according to claim 1, characterized in that, The opening is tilted at an angle of 30 degrees, and the distance between the two left-hand rotating blades is 100 mm, which generates swirling force as the water flows axially.
3. The pre-pump filter according to claim 2, characterized in that, The surface of the bracket (2) is provided with bolts (4), and the surface of the float (3) is provided with screw holes. The float (3) is installed on the surface of the bracket (2) by bolts (4).
4. The pre-pump filter according to claim 3, characterized in that, Both the first cleaning mesh (8) and the second cleaning mesh (9) are stainless steel filter meshes made using the main body drop hole tapping process.
5. The pre-pump filter according to claim 1, characterized in that, The filter housing (1) and the bracket are made of iron plate cut into shape and then hot-galvanized.