Filtering joint of non-clogging pump
By using a tapered filter mesh and removable threaded connection in the pump filter joint, the problem of clogging when pumping particulate media is solved, and the self-flushing function of the pump is realized, which extends the equipment life and reduces production costs.
Patent Information
- Application Number
- CN202422900911.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The filter joints used in the existing pump industry are prone to clogging when pumping particulate media, resulting in mechanical failure, especially in flush-free conditions.
A non-blocking pump filter joint was designed, and a conical filter was used to replace the original planar filter. Combined with a removable threaded connection and a hexagonal nut structure, ensuring that the filter was not easily blocked under the impact of water flow, and through a conical design and fluid The channel structure realizes self-flushing.
Effectively prevent filter clogging, extend the service life of the pump, expand the application capacity of the pump in flush-free conditions, and reduce production costs and maintenance needs.
Smart Images
Figure CN222254465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pump component, in particular to a non-clogging pump filter joint, which is mainly used for self-flushing of the pump under the condition of no flushing and using pumping particle medium, so as to solve the self-flushing problem of the pump. Background Art
[0002] In the pump industry, filter joints are usually used for water diversion, and harmful particles in the medium need to be filtered; there are many types of pumps, specifically high-efficiency vortex pumps (non-clogging pumps), which are non-variable displacement pumps. However, in the filter joints used in the prior art, the filter screen inside is set in a flat form, and the particles in the medium can easily stick to the filter screen under the action of the water flow, causing blockage, and the blocked filter joint may cause mechanical failure. Utility Model Content
[0003] In view of the above-mentioned problems existing in the filter joint, the utility model designs a non-clogging pump filter joint to ensure that the pump performs self-flushing when pumping granular media without clean flushing liquid, which effectively solves the self-flushing problem of the pump and expands the application of the pump in conveying granular media without flushing.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a non-clogging pump filter joint, comprising: a joint body, a filter assembly unit and a connecting joint; one end of the joint body is connected to the filter assembly unit, and the other end of the joint body is connected to the connecting joint; thereby forming a three-section combined structure, constituting a complete filter joint;
[0005] In the above-mentioned filter joint, the liquid is filtered from the direction close to the filter assembly unit, and the filtered water passes through the joint body and then the liquid is led out through the connecting joint; therefore, according to the direction of liquid flow, the position of the filter assembly unit is called the front end, and the position of the connecting joint is called the rear end;
[0006] Furthermore, the connection between the connector body and the filter assembly unit at the front end thereof, and between the connector body and the connecting connector at the rear end thereof are both detachable, so that a certain part (any of the above three sections) can be replaced at any time without replacing the entire filter connector, thereby saving production costs;
[0007] Furthermore, the detachable connection form is a threaded connection. As other embodiments of the present solution, other equivalent connection methods with sealing can be used, such as a method of combining a snap and a sealing gasket, etc., as long as the detachable and sealing effects are achieved.
[0008] Furthermore, the joint body is designed to be a small diameter section, a middle diameter section and a large diameter section in sequence according to the direction of liquid flow, and the three sections are integrally formed; the outer diameters of the small diameter section and the middle diameter section are both provided with external threads, the large diameter section is provided with a connection hole matching the connection joint, and the inner wall of the connection hole is provided with internal threads; the outer diameter of the large diameter section adopts a hexagonal nut form, so that the joint body can be clamped and fixed by a corresponding clamping tool during installation; the joint body is spirally connected to the filter assembly unit through the external threads of its small diameter section, and is spirally connected to the connection joint through the internal threads of its large diameter section;
[0009] Furthermore, cavities are provided inside the joint body and inside the connecting joint, and the two cavities are connected to form a fluid channel.
[0010] Furthermore, the filter assembly unit adopts a conical design as a whole, including: a filter screen cover, a filter screen and a filter screen support frame, the filter screen is fixedly supported in the filter screen cover by the filter screen support frame, one end of the filter screen cover is a storage space for accommodating the filter screen and the filter screen support frame, and the other end is a cylindrical cavity, and the inner diameter of the cylindrical cavity is provided with an internal thread matching the external thread of the small diameter section of the joint body; during assembly, the filter screen and the filter screen support frame are fastened to the joint body through the cooperation of the internal thread of the filter screen cover and the external thread of the small diameter section of the joint body;
[0011] Furthermore, the accommodating cavity at the front end of the filter screen cover and the filter screen support frame are conical structures with the same taper and are made by stamping, and the two are used to fix and support the filter screen;
[0012] Furthermore, the filter screen adopts a conical shape, replacing the original flat shape. The flat surface is easy to be blocked, and particles can easily stick to the filter screen under the action of water flow, causing blockage;
[0013] Furthermore, the cone angle of the filter screen is in the range of 90° to 120°;
[0014] The number of the filter screens is determined according to actual requirements.
[0015] Furthermore, a pressure source is provided outside the filter joint of the present invention, and the external thread on the middle diameter section of the joint body cooperates with the internal thread of the shell of the pressure source, so that the filter joint is connected to the pressure source.
[0016] The technical principle of this solution is that when water flows into the filter, no matter which direction the water flows, the conical surface of the filter always forms a certain angle with the direction of liquid flow. Under the action of the impact force of the water flow and the component force formed by the conical surface, the particles attached to the filter are flushed away, and it is not easy to cause the filter joint to be completely blocked and cause mechanical failure.
[0017] The beneficial effects of the non-clogging pump filter joint using this solution are:
[0018] The filter joint is set without changing or with minimal changes to the pump parts, and the shape of the filter screen of the filter joint is changed to prevent the filter screen from being clogged by particles adhering to it, thereby ensuring that the pump can self-flush using the pumped granular medium without clean flushing liquid, thereby solving the pump self-flushing problem and expanding the application of the pump in conveying granular media without flushing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an assembly diagram of the non-clogging pump filter joint of the utility model.
[0020] Figure 2 for Figure 1 Exploded diagram.
[0021] Figure 3 This is the principle diagram of the non-clogging pump filter joint of the utility model.
[0022] Figure 4 This is a structural diagram of the filter screen cover in the filter screen assembly unit of the utility model.
[0023] Figure 5 for Figure 4 Side view of.
[0024] Figure 6 It is the structure diagram of the filter in the filter assembly unit.
[0025] Figure 7 for Figure 6 Side view of.
[0026] Figure 8 This is a structural diagram of the filter support frame in the filter assembly unit.
[0027] Fig. 9 for Figure 8 Side view of.
[0028] Fig.10 This is a structural diagram of the connector body of the non-clogging pump filter connector of the utility model.
[0029] Fig.11 for Fig.10 Side view of.
[0030] In the figure, 1, joint body, 2, connecting joint, 11, small diameter section, 12, medium diameter section, 13, large diameter section, 3, external thread, 4, internal thread, 5, filter screen cover, 6, filter screen, 7, filter screen support frame, 51, accommodating space, 52, cylindrical cavity, 8, shell of pressure source. DETAILED DESCRIPTION
[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0032] like Figure 1-11 The non-clogging pump filter connector shown in the figure comprises: a connector body 1, a filter assembly unit and a connecting connector 2; one end of the connector body 1 is connected to the filter assembly unit, and the other end of the connector body 1 is connected to the connecting connector 2;
[0033] In the above-mentioned filter joint, the liquid is filtered from the direction close to the filter assembly unit, and the filtered water passes through the joint body 1 and then leads out through the connecting joint 2;
[0034] The connection between the connector body 1 and the filter assembly unit at its front end, and between the connector body 1 and the connecting connector 2 at its rear end are both detachable, so that some parts can be replaced at any time without replacing the entire filter connector.
[0035] The detachable connection form is a threaded connection.
[0036] The joint body 1 is designed to be divided into a small diameter section 11, a middle diameter section 12 and a large diameter section 13 in sequence according to the direction of liquid flow; the outer diameters of the small diameter section 11 and the middle diameter section 12 are both provided with external threads 3, and the large diameter section 13 is provided with a connection hole matching the connection joint 2, and the inner wall of the connection hole is provided with internal threads 4; the joint body 1 is spirally connected to the filter assembly unit through the external threads 3 of the small diameter section 11, and is spirally connected to the connection joint 2 through the internal threads 4 of the large diameter section 13; the outer diameter 13 of the large diameter section is in the shape of a hexagonal nut;
[0037] The joint body 1 and the connecting joint 2 are provided with cavities inside and are connected to form a fluid channel.
[0038] The filter assembly unit comprises: a filter screen cover 5, a filter screen 6 and a filter screen support frame 7, wherein the filter screen 6 is fixedly supported in the filter screen cover 5 by the filter screen support frame 7, wherein one end of the filter screen cover 5 is a receiving space 51 for receiving the filter screen 6 and the filter screen support frame 7, and the other end is a cylindrical cavity 52, wherein the inner diameter of the cylindrical cavity 52 is provided with an internal thread 4 matching the external thread 3 of the small diameter section 11 of the joint body 1; during assembly, the filter screen 6 and the filter screen support frame 7 are fastened to the joint body 1 by the cooperation of the internal thread 4 of the filter screen cover 5 and the external thread 3 of the small diameter section 11 of the joint body;
[0039] The accommodating cavity 51 at the front end of the filter screen cover 5 and the filter screen support frame 7 are conical structures with the same taper and are made by stamping, and the filter screen 6 is fixed and supported between the two;
[0040] The filter screen 6 adopts a conical shape, replacing the original plane shape. The plane of the filter screen 6 is easy to be blocked, and particles can easily stick to the filter screen 6 under the action of water flow, causing blockage.
[0041] A pressure source is provided on the outside of the filter joint of this scheme, and the external thread 3 on the middle diameter section 12 of the joint body cooperates with the internal thread 4 of the shell 8 of the pressure source, so that the filter joint is connected to the pressure source; it should be noted that the threads of various parts in this filter joint adopt sealing threads to ensure a certain degree of sealing.
[0042] The technical principle of this solution is that when water flows into the filter, no matter which direction the water flows (including horizontal and vertical water flow), there is always a conical surface of the filter 6 that forms a certain angle with the liquid flow direction, as shown in the following example: Figure 3 As shown, under the action of the impact force of the water flow and the component force formed by the conical surface, the particles attached to the filter screen 6 are washed away, and it is not easy to cause the filter joint to be completely blocked and cause mechanical failure.
[0043] The filter joint of this design can filter most of the particles in the medium that are harmful to the mechanical seal end face or water-lubricated bearing without causing blockage in the pipeline, thereby increasing the service life of the seal or sliding bearing, reducing the user's on-site water diversion pipeline configuration, and solving the problem of clean water sources in water-scarce areas.
[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
Claims
1. A non-clogging pump filter joint, characterized in that: include: A joint body, a filter assembly unit and a connecting joint; one end of the joint body is connected to the filter assembly unit, and the other end of the joint body is connected to the connecting joint; the joint body includes: a small diameter section, a medium diameter section and a large diameter section; the filter assembly unit includes: a filter screen cover, a filter screen and a filter screen support frame; the filter screen is supported and arranged in the filter screen cover by the filter screen support frame; and the filter screen assembly unit is connected to the small diameter section of the joint body through the filter screen cover; the connecting joint is connected to the large diameter section of the joint body; the filter screen assembly unit adopts a conical design as a whole.
2. A non-clogging pump filter joint according to claim 1, characterized in that: The connection between the joint body and the filter screen assembly unit at its front end, and between the joint body and the connecting joint at its rear end are both in a detachable connection form.
3. A non-clogging pump filter joint according to claim 2, characterized in that: The detachable connection form is a threaded connection.
4. A non-clogging pump filter joint according to claim 3, characterized in that: The order of the small diameter section, middle diameter section and large diameter section of the joint body is designed in sequence according to the direction of liquid flow and is integrally formed; the outer diameters of the small diameter section and the middle diameter section are both provided with external threads, the large diameter section is provided with a connecting hole matching the connecting joint, and the inner wall of the connecting hole is provided with an internal thread; the joint body is spirally connected to the filter screen assembly unit through the external thread of its small diameter section, and is spirally connected to the connecting joint through the internal thread of its large diameter section.
5. The non-clogging pump filter joint according to claim 1, characterized in that: The inside of the joint body and the inside of the connecting joint are both provided with cavities and are connected to form a fluid channel.
6. A non-clogging pump filter joint according to claim 4, characterized in that: The filter screen is fixedly supported in the filter screen cover by the filter screen support frame. One end of the filter screen cover is a accommodating space for accommodating the filter screen and the filter screen support frame, and the other end is a cylindrical cavity. The inner diameter of the cylindrical cavity is provided with an internal thread that matches the external thread of the small diameter section of the joint body. During assembly, the filter screen and the filter screen support frame are fastened to the joint body through the cooperation of the internal thread of the filter screen cover and the external thread of the small diameter section of the joint body.
7. A non-clogging pump filter joint according to claim 6, characterized in that: The accommodating cavity at the front end of the filter screen cover and the filter screen support frame are conical structures with the same taper and are made by stamping, and the filter screen is fixed and supported between the two.
8. The non-clogging pump filter joint according to claim 6, characterized in that: The filter screen is in a conical shape, and the cone angle of the filter screen is 90° to 120°.
9. The non-clogging pump filter joint according to claim 4, characterized in that: A pressure source is arranged outside the filter joint, and the external thread on the middle diameter section of the joint body cooperates with the internal thread of the shell of the pressure source to connect the filter joint with the pressure source.