A backwash filter flush arm lock joint

Abstract

The application discloses a flushing arm locking joint for backwashing filter, which comprises a cleaning structure, a filter column, a base arranged at one end of the filter column, a thread arranged on the base, a main rotating shaft arranged in the filter column, and helical blades arranged on the main rotating shaft; an upper locking structure, a fastening sleeve arranged at one end of the main rotating shaft, a locking piece fixedly connected to one end of the fastening sleeve, and a secondary rotating shaft penetrating through the locking piece and the fastening sleeve and fixedly connected with the main rotating shaft; and a butt joint bearing, a threaded outer wheel, a fixed wheel rotatably connected in the threaded outer wheel, an extrusion block arranged on the fixed wheel, and a motor output end arranged on the fixed wheel. The unique helical blades solve the problem of the attachment of dirt at the filter opening, and the helical blades also make the whole backwashing process more comprehensive. The connecting mechanism with multiple limiting locking functions makes the whole cleaning process more safe and stable, and greatly improves the self-cleaning efficiency of the backwashing filter.

Description

Technical Field

[0001] This invention relates to the field of filters, and in particular to a backwashing arm locking connector for a backwashing filter. Background Technology

[0002] A backwash filter is a precision device that uses a filter screen to directly intercept impurities in water, removing suspended solids and particulate matter, reducing turbidity, purifying water quality, and reducing the generation of system dirt, algae, and corrosion, thereby purifying water and protecting the normal operation of other equipment in the system. Fully automatic backwash filters overcome many shortcomings of traditional filtration products, such as small dirt-holding capacity, susceptibility to clogging, the need for disassembly and cleaning of the filter element, and the inability to monitor the filter status. They feature automatic filtration of raw water and automatic cleaning and discharge of the filter element, with uninterrupted water supply during cleaning and discharge. The system can monitor the filter's operating status and has a high degree of automation. They cover various filtration precision needs from 10µm to 3000µm, providing customers with a variety of water filtration equipment.

[0003] While existing backwash filters are quite automated, the distribution of dirt accumulated on the filter screen during filtration is rather random, and the coverage area is not fixed. Under the pressure difference between the inlet and outlet, the floating of dirt introduces even more randomness. This means that simply relying on water flow to rinse the screen cannot completely remove the sticky dirt adhering to the screen openings. Over time, this can cause the filter opening diameter to narrow or even become blocked, thus affecting filtration efficiency. Therefore, a pipe connection device that works with the filter column is also required to prevent the filter column from separating from the flushing arm during secondary filtration. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the aforementioned and / or existing technologies, although the backwash filters are relatively comprehensive in terms of full automation, the distribution of dirt accumulated on the filter screen during the backwashing process is relatively random and the coverage is not fixed. Under the pressure difference between the inlet and outlet, the floating of dirt will bring more randomness. Therefore, relying solely on water flow to rinse cannot completely remove the sticky dirt attached to the filter screen opening. Over time, this will cause the diameter of the filter opening to shrink or even become blocked, thus affecting the filtration efficiency. Under this premise, a pipeline connection device that cooperates with the filter column is needed to avoid the problem of the filter column separating from the flushing arm during secondary cleaning. Therefore, this invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to bring the effect of secondary cleaning of the filter column to the working end of the flushing arm, remove the filter port dirt with strong adsorption, and design a corresponding reinforcing connection device so that it will not detach when performing high-intensity secondary cleaning of the filter column.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a backwashing filter flushing arm locking connector, comprising, To solve the above technical problems, the present invention provides the following technical solution: a backwashing filter flushing arm locking connector, comprising a cleaning structure including a filter column, one end of the filter column being provided with a base, the base being provided with threads, a main rotating shaft being provided inside the filter column, and a spiral blade being provided on the main rotating shaft; The locking structure includes a fastening sleeve provided at one end of the main rotating shaft, a locking component fixedly connected to one end of the fastening sleeve, and a secondary rotating shaft passing through the locking component and the fastening sleeve and fixedly connected to the main rotating shaft. The mating bearing includes a threaded outer wheel, a fixed wheel rotatably connected inside the threaded outer wheel, a pressing block on the fixed wheel, and a motor output end on the fixed wheel.

[0008] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, the base is provided with a slide rail, and an L-shaped slider group is slidably connected on the slide rail.

[0009] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, wherein: strong springs are provided on both sides of the fastening sleeve, and the strong springs are fixedly connected to the L-shaped slider group.

[0010] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, the upper locking member is provided with a through hole, and the through hole is provided with a groove.

[0011] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, the upper locking member is provided with a limiting groove, and four limiting grooves are arranged at equal intervals along the circumference of the upper locking member.

[0012] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, wherein: the L-shaped slider assembly is provided with a spring steel ball, and the radius of the spring steel ball matches the groove.

[0013] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, wherein: one end of the L-shaped slider group is provided with a first arc, and the extrusion block is provided with a second arc, the first arc and the second arc having the same radius.

[0014] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, the motor output end is provided with four limiting plates along the circumference, the size of the limiting plates is matched with the limiting groove, and the center of the four limiting plates is provided with a mating interface, the size of the mating interface is matched with the secondary rotating shaft.

[0015] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, wherein: a geared motor switch is provided at the bottom of the interface.

[0016] As a preferred embodiment of the backwashing filter flushing arm locking connector of the present invention, the spiral blade is fixedly connected to the main rotating shaft through a connecting column, the filter column is provided with filter holes, and the threaded outer wheel matches the thread pattern.

[0017] The beneficial effects of this invention are as follows: the unique spiral blades solve the problem of dirt adhering to the filter port, and the spiral blades also make the entire backwashing process more thorough. The multi-position locking connection mechanism also makes the entire cleaning process safer and more stable, greatly enhancing the self-cleaning efficiency of the backwash filter. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 A schematic diagram of the structure of a backwashing filter flushing arm locking connector according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the locking structure in a backwashing filter flushing arm locking joint according to an embodiment of the present invention; Figure 3 A schematic diagram of the combined locking structure and cleaning structure of a backwashing filter flushing arm locking connector according to an embodiment of the present invention; Figure 4 A schematic diagram of the mating bearing in a backwashing filter flushing arm locking joint according to an embodiment of the present invention; Figure 5 A top view of the mating bearing in a backwashing filter flushing arm locking joint according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the connecting portion of a backwashing filter flushing arm locking connector according to an embodiment of the present invention. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0022] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0023] Example 1 Reference Figure 1-5 This embodiment provides a backwashing filter flushing arm locking connector, including a cleaning structure 100, which includes a filter column 101. One end of the filter column 101 is provided with a base 101a, which is cap-shaped with the opening facing downwards. This base 101a is used to protect the subsequent locking structure 200 and the mating bearing 300, which are connected to the main rotating shaft 102. The base 101a is provided with a thread 101a-1, and the threads on the threaded outer wheel 301 match the threads of the thread 101a-1, allowing for a threaded connection. The filter column 101 contains a main rotating shaft 102, which is provided with a spiral blade 103. When the main rotating shaft 102 rotates, the spiral blade 103 also rotates, and the cleaning process begins. Furthermore, the locking structure 200 includes a fastening sleeve 201 provided at one end of the main rotating shaft 102. The fastening sleeve 201 is made of waterproof rubber and can maintain long-term toughness underwater. It tightly wraps around and fixes one end of the main rotating shaft 102. The inner ring of the fastening sleeve 201 is a smooth and tight-fitting layer made of waterproof metal sheet, which will drive the main rotating shaft 102 to rotate. A locking component 202 is fixedly connected to one end of the fastening sleeve 201. The auxiliary rotating shaft 203 passes through the locking component 202 and the fastening sleeve 201 and is fixedly connected to the main rotating shaft 102. The auxiliary rotating shaft 203 is a component that connects to the docking bearing 300 and is also used to turn on the geared motor so that the output end starts to rotate and start working. Furthermore, the mating bearing 300 has a simple bearing structure, with the outer side rotating but the inner side not rotating. It includes a threaded outer wheel 301, which is threadedly connected to the base 101a, thus fixing it and mating upwards along the cover portion of the base 101a. A fixed wheel 302 is rotatably connected inside the threaded outer wheel 301. The fixed wheel 302 has a pressing block 303 and a motor output end 304, located at the center of the fixed wheel 302. The base 101a has a slide rail, on which an L-shaped slider assembly 101a-2 is slidably connected. The L-shaped slider assembly 101a-2 consists of a vertically oriented rectangular slider and a horizontally oriented cylindrical clamp. The fastening sleeve 201 is equipped with strong springs 201a on both sides. These springs 201a ensure sufficient, but not excessive, horizontal limiting force is applied to the fastening sleeve 201 when it is pressed by the L-shaped slider assembly 101a-2. This allows the smooth, tight-fitting layer to adhere to the main rotating shaft 102 and rotate smoothly, while also preventing the fastening sleeve 201 from detaching from the main rotating shaft 102. The strong springs 201a are fixedly connected to the L-shaped slider assembly 101a-2. The locking member 202 has a through hole 202a, inside which is a groove 202a-1. The groove 202a-1 and the L-shaped slider assembly 101a-2 can engage, preparing for subsequent locking. The locking member 202 also has four equidistant limiting grooves 202b arranged along its circumference.

[0024] Example 2 Reference Figure 1-6This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and the difference from the previous embodiment is that: the L-shaped slider group 101a-2 is provided with a spring steel ball 101a-3. The radius of the spring steel ball 101a-3 matches the groove 202a-1, which means that the spring steel ball 101a-3 can be embedded in the groove 202a-1. The L-shaped slider assembly 101a-2 has a first arc at one end, and the pressing block 303 has a second arc 303a. The first arc and the second arc 303a have the same radius. At this time, the locking action can be started. When the entire docking bearing 300 is lifted upward by being threadedly connected to the base 101a, the second arc 303a of the pressing block 303 will contact the first arc of the L-shaped slider assembly 101a-2. Driven by the arc, the pressing block 303 will compress the strong spring 201a, achieving the effect of making the smooth and tight-fitting layer and the main rotating shaft 102 fit together. At the same time, the horizontal cylindrical clamping part of the L-shaped slider assembly 101a-2 enters the through hole 202a. The spring steel ball 101a-3 will be compressed until it reaches the groove 202a-1, and then pops out again, forming a light limit. The same principle applies when resetting and retracting. This is equivalent to the first limit fixation.

[0025] Furthermore, four limiting plates 304a are provided along the circumference of the motor output end 304. The size of the limiting plates 304a matches the limiting groove 202b. During the process of the docking bearing 300 rising, the limiting plates 304a will also form a first limiting with the limiting groove 202b to fix the fixed wheel 302 and the locking piece 203, so as to prevent the rotation generated when the geared motor starts to output from causing violent shaking between the components. This is equivalent to a second limiting. The center surrounded by the four limiting plates 304a is provided with a mating interface 304b. The size of the mating interface 304b matches the secondary rotating shaft 203. The secondary rotating shaft 203 can directly enter the mating interface 304b, thereby connecting the geared motor output end, the secondary rotating shaft 203, and the main rotating shaft 102, and allowing the secondary rotating shaft 203 and the main rotating shaft 102 to rotate stably in the middle channel between the locking piece 202 and the fastening sleeve 201.

[0026] Example 3 Reference Figure 1-6 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, and differs from the previous embodiment in that: a geared motor switch 304b-1 is provided at the bottom of the interface 304b. When the auxiliary shaft 203 approaches the bottom of the interface 304b, it will naturally press down the geared motor switch 304b-1. At this time, the limit is also completed, and the cleaning work can begin.

[0027] Furthermore, the spiral blade 103 is fixedly connected to the main rotating shaft 102 via the connecting column 103a. The connecting column 103a is staggered on both sides of the main rotating shaft 102 and located at the point where the bending angle of the spiral blade 103 is the largest, which makes the rotation more stable. The filter column 101 is provided with filter holes 101b, which are used to filter dirt and are also the main objects to be cleaned by the spiral blade 103.

[0028] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0029] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0030] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A backwashing filter flushing arm locking connector, characterized in that: include, The cleaning structure (100) includes a filter column (101), one end of which is provided with a base (101a), the base (101a) is provided with a thread (101a-1), the filter column (101) is provided with a main rotating shaft (102), and the main rotating shaft (102) is provided with a spiral blade (103). The locking structure (200) includes a fastening sleeve (201) provided at one end of the main rotating shaft (102), a locking member (202) is fixedly connected to one end of the fastening sleeve (201), and a secondary rotating shaft (203) passes through the locking member and the fastening sleeve (201) and is fixedly connected to the main rotating shaft (102); The mating bearing (300) includes a threaded outer wheel (301), a fixed wheel (302) is rotatably connected inside the threaded outer wheel (301), a pressing block (303) is provided on the fixed wheel (302), and a motor output end (304) is provided on the fixed wheel (302). The base (101a) is provided with a slide rail, and an L-shaped slider group (101a-2) is slidably connected on the slide rail. The fastening sleeve (201) is provided with strong springs (201a) on both sides, and the strong springs (201a) are fixedly connected to the L-shaped slider group (101a-2); The upper locking member (202) is provided with a through hole (202a), and the through hole (202a) is provided with a groove (202a-1). The L-shaped slider assembly (101a-2) is provided with a spring steel ball (101a-3), the radius of which matches the groove (202a-1); The L-shaped slider group (101a-2) has a first arc at one end, and the extrusion block (303) has a second arc (303a), the first arc and the second arc (303a) have the same radius; The motor output end (304) is provided with four limiting plates (304a) along the circumference. The size of the limiting plates (304a) matches the limiting groove (202b) on the upper locking member (202). The center surrounded by the four limiting plates (304a) is provided with a mating interface (304b). The size of the mating interface (304b) matches the secondary rotating shaft (203). The bottom of the interface (304b) is equipped with a geared motor switch (304b-1). When the mating bearing (300) is lifted upwards through a threaded connection with the base (101a), the second arc (303a) of the pressing block (303) will contact the first arc of the L-shaped slider group (101a-2), and under the drive of the arc, the pressing block (303) will squeeze the strong spring (201a), so that the inner ring of the fastening sleeve (201) and the main rotating shaft (102) are in contact, and at the same time, part of the L-shaped slider group (101a-2) enters the through hole (202a) to form a fixation; When the secondary shaft (203) is inserted into the interface (304b), it will press the geared motor switch (304b-1), automatically triggering the motor to start.

2. The backwashing filter flushing arm locking connector according to claim 1, characterized in that: The locking member (202) is provided with a limiting groove (202b), and four limiting grooves (202b) are arranged at equal intervals along the circumference of the locking member (202).

3. The backwashing filter flushing arm locking connector according to claim 2, characterized in that: The spiral blade (103) is fixedly connected to the main rotating shaft (102) via a connecting column (103a). The filter column (101) is provided with a filter hole (101b). The threaded outer wheel (301) and the thread (101a-1) are matched.

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