Axial flow pump with filtering device

Abstract

The axial flow pump comprises an axial flow pump body, an annular protruding seat, an end ring seat and a cylindrical intercepting net, the annular protruding seat is fixed to the bottom end of the axial flow pump body and arranged around a water inlet, internal threads are arranged on the inner wall of the annular protruding seat, a fastening neck is fixed to the top of the end ring seat, external threads are arranged on the outer wall of the fastening neck, and the cylindrical intercepting net is arranged on the end ring seat. The fastening neck is screwed in the annular convex seat in a thread matching manner; and the cylindrical intercepting net is fixedly mounted below the end ring seat in a manner that the opening is upward. The inner thread is arranged on the inner wall of the annular convex seat, the outer thread is arranged on the outer wall of the fastening neck, and the fastening neck and the annular convex seat are in threaded connection through the inner thread and the outer thread, so that the barrel-shaped intercepting net is more convenient and faster to disassemble and assemble, and the inner edge wall of the barrel-shaped intercepting net can be supported through the combination of the supporting rod and the supporting ring; the inner bottom wall of the barrel-shaped intercepting net can be supported through cooperation of the supporting ring and the cross-shaped supporting frame, and therefore the water flow impact resistance of the barrel-shaped intercepting net is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of axial flow pump technology, specifically to an axial flow pump with a filter device. Background Technology

[0002] An axial flow pump is a type of impeller pump, mainly composed of a pump body, impeller, drive shaft, guide vanes, and other components. Its working principle relies on the thrust generated by the rotation of the impeller to propel the fluid along the pump shaft. It features high flow rate and low head, making it suitable for conveying large-flow, low-head liquids in applications such as water treatment, agricultural irrigation, urban drainage, and power plant circulating water. In these scenarios, it can efficiently transport and lift liquids.

[0003] Referring to Chinese Patent No. CN217129940U, which discloses an axial flow pump with a filter device, the pump body includes an axial flow pump body, a first flange located at the bottom of the pump body, a first filter device connected below the first flange, the first filter device including a second flange and a third flange connected by a connecting pipe, a first filter screen fixed below the third flange, and a second filter device connected below the third flange, the second filter device including a second filter screen, a fixing ring fixed above the second filter screen, and multiple fixing blocks fixed above the fixing ring. This invention can effectively filter impurities in water, preventing impurities from entering the pump body and causing damage. In addition, the first and second filter devices can be installed and used simultaneously or separately with the pump body, offering multiple combination options to accommodate different water conditions, thus providing greater versatility.

[0004] The first and second filter screens in the aforementioned patent are fastened to the first flange by using multiple studs and nuts. When disassembling and rotating, tools are needed to screw and unscrew the nuts. Since there are multiple studs, the nuts need to be screwed and unscrewed multiple times, which is time-consuming and laborious, and the disassembly and assembly are not convenient enough. Utility Model Content

[0005] The purpose of this invention is to provide an axial flow pump with a filter device, which effectively solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] An axial flow pump with a filtration device includes an axial flow pump body, an annular boss, an end ring seat, and a cylindrical intercepting net. The annular boss is fixed to the bottom end of the axial flow pump body and arranged around the inlet. The inner wall of the annular boss is provided with internal threads. The top of the end ring seat is fixed with a fastening neck. The outer wall of the fastening neck is provided with external threads. The fastening neck is screwed into the annular boss with matching threads. The cylindrical intercepting net is fixedly installed below the end ring seat with its opening facing upwards.

[0008] Therefore, by setting internal threads on the inner wall of the annular boss and external threads on the outer wall of the fastening neck, the threaded connection between the fastening neck and the annular boss is achieved using internal and external threads, replacing the traditional method of fixing with multiple bolts and nuts, making the assembly and disassembly of the cylindrical interception net more convenient and faster.

[0009] Furthermore, when the fastening neck is screwed into the annular boss to its limit position, the upper surface of the end ring seat abuts and fits against the bottom end face of the annular boss.

[0010] Furthermore, several support rods are fixed in a ring-shaped array on the lower surface of the end ring seat, and a support ring is fixed to the bottom of the support rods. The inner edge wall of the cylindrical interception net abuts against the outer edge wall of the support ring and each support rod.

[0011] Furthermore, a cross-shaped support frame is fixed inside the support ring, and the bottom wall of the cylindrical interception net abuts against the bottom surface of the support ring and the lower surface of the cross-shaped support frame.

[0012] Furthermore, an upward-facing pin cylinder is fixed above the end ring seat, and a side bracket is fixed to the side of the annular protrusion. A locking pin is inserted into the mounting hole on the side bracket, and the bottom end of the locking pin is fitted into the pin cylinder.

[0013] Furthermore, the locking pin is made of 430 stainless steel and its outer surface is coated with anti-rust paint.

[0014] Furthermore, a magnetic block is fixed at the bottom of the insert cylinder to engage with the locking pin magnetically.

[0015] Furthermore, handles are fixed to both sides of the end ring seat, and the handles have anti-slip textures.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0017] This invention achieves a threaded connection between the fastening neck and the annular boss by setting an internal thread on the inner wall of the annular boss and an external thread on the outer wall of the fastening neck, replacing the traditional method of fixing with multiple bolts and nuts, making the assembly and disassembly of the cylindrical interception net more convenient and faster.

[0018] This invention improves the resistance of the cylindrical interception net to water flow impact and ensures its stability by installing a support rod, a support ring, and a cross-shaped support frame below the end ring seat. The combination of the support rod and the support ring provides support for the inner edge wall of the cylindrical interception net, while the combination of the support ring and the cross-shaped support frame provides support for the inner bottom wall of the cylindrical interception net.

[0019] When the fastening neck is screwed into the annular protrusion to its limit position, the pin cylinder and the locking pin are aligned, and the locking pin is inserted into the pin cylinder to achieve locking. This can prevent the fastening neck from falling out of the annular protrusion under the impact of water flow, and effectively ensure the stability of the cylindrical interception net during installation. Attached Figure Description

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

[0021] Figure 2 for Figure 1 The diagram shows a partial cross-sectional view of the structure.

[0022] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the structure.

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the end ring seat in this utility model.

[0025] In the diagram: 1. Axial flow pump body; 2. Annular boss; 21. Internal thread; 3. End ring seat; 301. Handle; 31. Support rod; 32. Support ring; 33. Cross-shaped support frame; 4. Fastening neck; 41. External thread; 6. Cylindrical interception net; 7. Pin sleeve; 71. Magnet block; 8. Side frame; 81. Mounting hole; 82. Locking pin. Detailed Implementation

[0026] 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.

[0027] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to 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 the embodiments of this utility model.

[0028] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0029] Please see Figures 1-5 The present invention provides an axial flow pump with a filtration device, comprising an axial flow pump body 1, an annular boss 2, an end ring seat 3, and a cylindrical intercepting net 6. The annular boss 2 is fixed to the bottom end of the axial flow pump body 1 and arranged around the inlet. The inner wall of the annular boss 2 is provided with an internal thread 21. The top of the end ring seat 3 is fixed with a fastening neck 4, and the outer wall of the fastening neck 4 is provided with an external thread 41. The fastening neck 4 is screwed into the annular boss 2 with matching threads. The cylindrical intercepting net 6 is fixedly installed below the end ring seat 3 with its opening facing upward.

[0030] The fastening neck 4 is screwed into the annular boss 2 using the mating of the external thread 41 and the internal thread 21, thus installing the cylindrical intercepting net 6. The fastening neck 4 is then unscrewed from the annular boss 2, allowing the cylindrical intercepting net 6 to be disassembled. This replaces the traditional method of using multiple bolts and nuts for fixing, making the assembly and disassembly of the cylindrical intercepting net 6 much more convenient and faster. After the cylindrical intercepting net 6 is installed, it can intercept impurities, serving as a filter when water enters the axial flow pump body 1.

[0031] Specifically, when the fastening neck 4 is screwed into the annular boss 2 to its limit position, the upper surface of the end ring seat 3 abuts against and fits against the bottom end face of the annular boss 2. Through the abutment and fit between the end ring seat 3 and the bottom end face of the annular boss 2, the contact between the end ring seat 3 and the annular boss 2 is ensured and mutual support is provided, thereby ensuring the firmness of the fastening neck 4 during installation.

[0032] Specifically, a number of support rods 31 are fixed in a ring-shaped array on the lower surface of the end ring seat 3. The bottom end of the support rods 31 is fixed with a support ring 32. The inner edge wall of the cylindrical interception net 6 abuts against the outer edge wall of the support ring 32 and each support rod 31 to achieve support for the inner edge wall of the cylindrical interception net 6.

[0033] A cross-shaped support frame 33 is fixed inside the support ring 32. The bottom wall of the cylindrical interception net 6 abuts against the bottom surface of the support ring 32 and the lower surface of the cross-shaped support frame 33, thereby supporting the bottom wall of the cylindrical interception net 6.

[0034] By installing a support rod 31, a support ring 32, and a cross-shaped support frame 33 below the end ring seat 3, the support rod 31 and the support ring 32 can provide support for the inner edge wall of the cylindrical interception net 6, and the support ring 32 and the cross-shaped support frame 33 can provide support for the inner bottom wall of the cylindrical interception net 6, thereby effectively improving the resistance of the cylindrical interception net 6 to water flow impact and ensuring the stability of the cylindrical interception net 6.

[0035] Specifically, an upward-facing pin cylinder 7 is fixed above the end ring seat 3, and a side frame 8 is fixed to the side of the annular boss 2. A locking pin 82 is inserted into the mounting hole 81 on the side frame 8. The bottom end of the locking pin 82 is fitted into the pin cylinder 7. When the fastening neck 4 is screwed into the annular boss 2 to the limit position, the pin cylinder 7 and the locking pin 82 are aligned. The locking pin 82 is inserted into the pin cylinder 7 to achieve locking and securing. This can prevent the fastening neck 4 from falling out of the annular boss 2 under the impact of water flow, effectively ensuring the stability of the cylindrical interception net 6 during installation.

[0036] Specifically, the locking pin 82 is made of 430 stainless steel, which makes it less prone to rust. The outer surface of the locking pin 82 is coated with anti-rust paint, which further enhances its anti-rust effect.

[0037] Specifically, a magnet block 71 is fixed at the bottom of the pin cylinder 7 to magnetically engage with the locking pin 82. When the locking pin 82 is inserted into the pin cylinder 7, the bottom of the locking pin 82 is magnetically attracted to the magnet block 71, which can prevent the locking pin 82 from coming out of the pin cylinder 7 due to vibration generated during the operation of the axial flow pump body 1, thus ensuring the stability of the locking.

[0038] Specifically, handles 301 are fixed on both sides of the end ring seat 3. The handles 301 have anti-slip textures. By holding the handles 301, it is convenient to rotate, rub, and disassemble the fastening neck 4.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A kind of axial flow pump with filtering device, comprising axial flow pump body (1), it is characterized in that: It further includes annular boss (2), end ring seat (3) and cylindrical interception net (6); The annular boss (2) is fixed at the bottom end of the axial flow pump body (1), and is arranged around the water inlet, the inner wall of the annular boss (2) is provided with internal thread (21); The top of the end ring seat (3) is fixed with fastening neck (4), the outer wall of the fastening neck (4) is provided with external thread (41), the fastening neck (4) is screwed in the annular boss (2) by thread matching; The cylindrical interception net (6) is fixedly installed below the end ring seat (3) with the opening upward.

2. The axial flow pump with filtering device according to claim 1, wherein: When the fastening neck (4) is screwed in the annular boss (2) to the limit position, the upper surface of the end ring seat (3) is in contact with the bottom end surface of the annular boss (2).

3. The axial flow pump with filtering device according to claim 1, wherein: The lower surface of the end ring seat (3) is annularly arrayed with a plurality of support rods (31), and the bottom ends of the support rods (31) are commonly fixed with a support ring (32); The inner edge wall of the cylindrical interception net (6) is in contact with the outer edge wall of the support ring (32) and each of the support rods (31).

4. The axial flow pump with filtering device according to claim 3, wherein: The support ring (32) is internally fixed with a cross-shaped support frame (33); The inner bottom wall of the cylindrical interception net (6) is in contact with the bottom surface of the support ring (32) and the lower surface of the cross-shaped support frame (33).

5. The axial flow pump with filtering device according to claim 1, wherein: The end ring seat (3) is fixed above with a plug-in cylinder (7) with the opening upward; The side frame (8) is fixed on the side of the annular boss (2), and the mounting hole (81) in the side frame (8) is inserted with a locking pin (82); The bottom end of the locking pin (82) is matched and inserted in the plug-in cylinder (7).

6. The axial flow pump with filtering device according to claim 5, wherein: The locking pin (82) is made of 430 stainless steel, and the outer surface of the locking pin (82) is coated with rust-proof paint.

7. The axial flow pump with filtering device according to claim 6, wherein: The plug-in cylinder (7) is internally fixed at the bottom with a magnet block (71) magnetically matched with the locking pin (82).

8. The axial flow pump with filtering device according to claim 1, wherein: The end ring seat (3) is fixed with a handle (301) on each side, and the handle (301) has anti-slip lines.

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