Filter screen structure of duplex filter

Abstract

The utility model discloses a filter screen structure of a duplex filter, and aims to provide a filter screen structure of a duplex filter, which is stable in structure, high in strength, not easy to damage and convenient to disassemble, assemble and maintain. The filter screen comprises a supporting body and a filter screen body which are detachably connected, the supporting body comprises an upper fixing ring frame, a lower fixing ring frame and a supporting rod, one end of the filter screen body is connected with the upper fixing ring frame, the other end of the filter screen body is connected with the lower fixing ring frame, one end of the supporting rod is connected with the upper fixing ring frame, and the other end of the supporting rod is connected with the lower fixing ring frame. The upper fixing ring frame is provided with a plurality of through holes. The filter screen structure has the advantages that the filter screen structure is convenient to disassemble, assemble and maintain; the installation positioning performance and the connection stability and efficiency are improved; the structural sealing performance and the filtering efficiency are improved; the structural integrity and strength are improved; therefore, the resource cost is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double filters, in particular to a double filter screen structure. Background Art

[0002] The duplex filter is also called the duplex switching filter. It is composed of two filters connected in parallel. When in use, it can control one of the filters to work, so that the staff can handle or maintain one of the filters without delaying the normal operation of the upper-level related equipment. However, the existing duplex filter is more troublesome to handle and replace the filter screen. The filter screen is often damaged after one week of use. At the same time, the filter screen is installed as a whole sheet, which is prone to wrinkles and stacking, resulting in a reduction in the filtering effect and affecting production efficiency.

[0003] China Patent Authorization Announcement Number: CN 217041505 U, Authorization Announcement Date July 26, 2022. The utility model relates to a double combined filter, which relates to the technical field of double filters, including an outer cylinder, a liquid discharge pipe is arranged below the outer cylinder, a guide cylinder is installed at the bottom end of the inner part of the outer cylinder, and the inner wall of the outer cylinder is provided with a guide groove, a plurality of filter boxes are arranged inside the outer cylinder, and guide blocks are installed on the outer side of the filter box, one end of the guide block extends to the inside of the guide groove, and legs are installed at the four corners of the bottom end of the outer cylinder, and a liquid outlet pipe is installed at the bottom end of the outer cylinder. The shortcomings of this technical solution are: the limiting method of the filter in the filter box is simple, the degree of expansion during use is limited, and it is easy to be damaged and the filtering effect is poor under unstable use conditions, resulting in waste of resources and increased costs. It is difficult to maintain effectively, stably and efficiently during maintenance, which reduces production efficiency.

[0004] In summary: the filter screen structure is not stable enough, easy to break, and difficult to maintain. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the filter screen structure of the prior art, such as insufficient stability, easy damage and difficulty in maintenance, and provides a double filter screen structure with stable structure, high strength, not easy to be damaged, and easy to disassemble and maintain.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double filter screen structure comprises a support body and a screen body, wherein the support body is detachably connected to the screen body, the support body comprises an upper fixed ring frame, a lower fixed ring frame and a support rod, one end of the screen body is connected to the upper fixed ring frame, the other end of the screen body is connected to the lower fixed ring frame, one end of the support rod is connected to the upper fixed ring frame, the other end of the support rod is connected to the lower fixed ring frame, and the upper fixed ring frame is provided with a plurality of through holes.

[0008] The filter body is sleeved on the inner side of the support body, so that the support body can support the opening and installation of the filter body. At the same time, the support body is detachably connected to the filter body, so that the filter body is fixedly installed on the support body to prevent deformation. At the same time, the filter body can be disassembled to replace a new filter body and reinstall it on the support body to achieve update and maintenance, thereby reusing the support body to save resources. The support body includes an upper fixed ring frame, a lower fixed ring frame and a support rod. The support rod is placed between the upper fixed ring frame and the lower fixed ring frame to connect the support body to form a barrel structure. The outer surface of the filter body is connected to each other to unfold. The upper fixed ring frame and the lower fixed ring frame unfold the filter body. The support rod prevents the filter body from stacking, thereby saving the use resources of the filter body. The liquid enters from the lower fixed ring frame (filter body) through the filter hole of the filter body and flows out from the upper fixed ring frame through the filter body. With the support body, the strength of the filter body is improved and the damage is reduced. The effect of improving the convenience of disassembly and maintenance, improving utilization and reducing damage, thereby saving resource costs and improving production efficiency is achieved.

[0009] Preferably, the upper fixed ring frame includes an outer ring body, an inner ring body and a fixed mesh plate, through holes are arranged on the fixed mesh plate, the fixed mesh plate is connected to the inner ring wall of the outer ring body to form an integrated structure, the outer ring body is provided with a limiting groove 1, one end of the filter body is embedded with the limiting groove 1, the inner ring body is embedded with the limiting groove 1, and the filter body is placed between the outer ring body and the inner ring body. The outer ring body in the upper fixed ring frame is connected to the fixed mesh plate with a through hole to form an integrated structure, the inner side of the outer ring body is provided with a limiting groove 1, the limiting groove 1 is an L-shaped depression to embed the inner ring body, and then the filter body is fixed between the outer ring body and the inner ring body, the filter body is attached to the groove wall of the limiting groove 1, and the filter body is quickly fixed. The effect of improving the integrity of the structure and the connection stability is achieved.

[0010] Preferably, the outer ring body is provided with a mounting hole 1, the inner ring body is provided with a connecting gasket, the inner ring body is embedded with one end of the connecting gasket, the other end of the connecting gasket is provided with a mounting hole 2, the mounting hole 1 is threadedly connected with a fixing screw 1, the fixing screw 1 is threadedly connected with the mounting hole 2, the outer ring body is provided with a positioning groove 1, and the connecting gasket is plugged into the positioning groove 1. The outer ring body is provided with a mounting hole 1, the connecting gasket is in the shape of a special-shaped structure, the inner ring body is fixed by the connecting gasket, one end of the connecting gasket is inserted into the positioning groove 1 to further fix the inner ring body, and the mounting hole 2 at the other end of the connecting gasket can be positioned opposite to the mounting hole 1, so as to facilitate the positioning and installation of the fixing screw 1 from the outside to fix the inner ring body to the filter body. The effect of improving the installation positioning and connection stability and efficiency is achieved.

[0011] Preferably, the lower fixed ring frame includes a connecting ring and a stabilizing ring, the connecting ring is provided with a limiting groove 2 and a limiting groove 3, the other end of the filter body is embedded with the limiting groove 2, the stabilizing ring is embedded with the limiting groove 2, the filter body is placed between the stabilizing ring and the connecting ring, the limiting groove 3 is provided with a mounting hole 3, the stabilizing ring is provided with a mounting hole 4, the mounting hole 3 is threadedly connected with a fixing screw 2, the fixing screw 2 is threadedly connected with the mounting hole 4, the end face of the connecting ring is provided with a positioning groove 2, the stabilizing ring is connected with a positioning rod, and the positioning rod is embedded with the positioning groove 2. The connecting ring in the lower fixed ring frame is connected to the other end of the filter body, the filter body is embedded in the limiting groove 2 and fixed by crimping the stabilizing ring, and the limiting groove 3 is placed outside the stabilizing ring, so that the connection and fixation of the stabilizing ring and the connecting ring are realized from the outside through the connection of the mounting hole 3 and the mounting hole 4 through the fixing screw 2, so that the filter body is fixed on the lower fixed ring frame, wherein the mounting hole 3 and the mounting hole 4 are relatively positioned by the docking of the positioning groove 2 and the positioning rod. The effect of improving the installation positioning and connection stability and efficiency is achieved.

[0012] Preferably, the stabilizing ring is provided with a fixed groove, and a sealing ring is sleeved in the fixed groove, and the sealing ring is pressed against the surface of the filter body. The outer side of the stabilizing ring is provided with a fixed groove, which is an annular depression and is embedded with the sealing ring. The sealing ring is pressed against the surface of the filter body to improve the tightness of the connection between the filter body and the second limiting groove, so as to ensure that the liquid flows out from the inside of the filter body and prevent leakage. The effect of improving the structural sealing and filtering efficiency is achieved.

[0013] Preferably, one end of the support rod is connected to the outer ring body in an integrated structure, and the other end of the support rod is connected to the connecting ring in an integrated structure. The support rod is provided with a connecting piece, the support rod is provided with a mounting hole five, the connecting piece is provided with a mounting hole six, the mounting hole five is threadedly connected with a fixing screw three, and the fixing screw three is threadedly connected with the mounting hole six. One end of the support rod is fixed to the outer ring body through an integrated connection, and the other end of the support rod is fixed to the connecting ring through an integrated connection to improve the overall stability of the support body. In addition, a connecting piece is provided on the support rod across the filter body, so that the connecting piece can further fix the filter body from the middle of the filter body through the connection with the fixing screw three to prevent deformation and improve the use strength of the filter body. The effect of improving the integrity and strength of the structure is achieved.

[0014] The beneficial effects of the utility model are: improving the convenience of disassembly, assembly and maintenance of the filter structure; improving installation positioning and connection stability and efficiency; improving structural sealing and filtering effectiveness; improving structural integrity and strength; improving utilization and reducing breakage, thereby saving resource costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 is a schematic cross-sectional view of the structure of the upper fixed ring body;

[0017] Figure 3 is a schematic cross-sectional view of the structure of the lower fixed ring body;

[0018] Figure 4 It is a schematic cross-sectional view of the structure in which the support rod is connected to the connecting piece.

[0019] In the figure: 1. support body, 2. filter body, 3. upper fixed ring frame, 4. lower fixed ring frame, 5. support rod, 6. through hole, 7. outer ring body, 8. inner ring body, 9. fixed mesh plate, 10. limiting groove one, 11. connecting gasket, 12. fixing screw one, 13. positioning groove one, 14. connecting ring, 15. stabilizing ring, 16. limiting groove two, 17. limiting groove three, 18. fixing screw two, 19. positioning groove two, 20. positioning rod, 21. fixing groove, 22. sealing ring, 23. connecting piece, 24. fixing screw three. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, process and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, process and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0024] Embodiment 1:

[0025] like Figure 1 As shown, a double filter screen structure includes a support body 1 and a screen body 2. The support body 1 is detachably connected to the screen body 2. The support body 1 includes an upper fixed ring frame 3, a lower fixed ring frame 4 and a support rod 5. One end of the screen body 2 is connected to the upper fixed ring frame 3, and the other end of the screen body 2 is connected to the lower fixed ring frame 4. One end of the support rod 5 is connected to the upper fixed ring frame 3, and the other end of the support rod 5 is connected to the lower fixed ring frame 4. The upper fixed ring frame 3 is provided with a plurality of through holes 6.

[0026] like Figure 1 , 2As shown, the upper fixed ring frame 3 includes an outer ring body 7, an inner ring body 8 and a fixed mesh plate 9, the through hole 6 is placed on the fixed mesh plate 9, the fixed mesh plate 9 is connected to the inner ring wall of the outer ring body 7 to form an integrated structure, the outer ring body 7 is provided with a limiting groove 10, one end of the filter body 2 is embedded in the limiting groove 10, the inner ring body 8 is embedded in the limiting groove 10, and the filter body 2 is placed between the outer ring body 7 and the inner ring body 8.

[0027] like Figure 2 As shown, the outer ring body 7 is provided with a mounting hole 1, the inner ring body 8 is provided with a connecting gasket 11, the inner ring body 8 is embedded with one end of the connecting gasket 11, the other end of the connecting gasket 11 is provided with a mounting hole 2, the mounting hole 1 is threadedly connected with a fixing screw 12, the fixing screw 12 is threadedly connected with the mounting hole 2, the outer ring body 7 is provided with a positioning groove 13, and the connecting gasket 11 is plugged into the positioning groove 13.

[0028] like Figure 1 , 3 As shown, the lower fixed ring frame 4 includes a connecting ring 14 and a stabilizing ring 15, the connecting ring 14 is provided with a limiting groove 2 16 and a limiting groove 3 17, the other end of the filter body 2 is embedded in the limiting groove 2 16, the stabilizing ring 15 is embedded in the limiting groove 2 16, the filter body 2 is placed between the stabilizing ring 15 and the connecting ring 14, the limiting groove 3 17 is provided with a mounting hole 3, the stabilizing ring 15 is provided with a mounting hole 4, the mounting hole 3 is threadedly connected with a fixing screw 2 18, the fixing screw 2 18 is threadedly connected to the mounting hole 4, the end face of the connecting ring 14 is provided with a positioning groove 2 19, the stabilizing ring 15 is connected with a positioning rod 20, and the positioning rod 20 is embedded in the positioning groove 2 19.

[0029] like Figure 3 As shown, the stabilizing ring 15 is provided with a fixing groove 21 , and a sealing ring 22 is sleeved in the fixing groove 21 , and the sealing ring 22 is pressed against the surface of the filter body 2 .

[0030] like Figure 1 , 4 As shown, one end of the support rod 5 is connected to the outer ring body 7 to form an integral structure, and the other end of the support rod 5 is connected to the connecting ring 14 to form an integral structure. The support rod 5 is provided with a connecting plate 23, the support rod 5 is provided with a mounting hole five, the connecting plate 23 is provided with a mounting hole six, the mounting hole five is threadedly connected with a fixing screw three 24, and the fixing screw three 24 is threadedly connected to the mounting hole six.

[0031] like Figure 1-4 As shown: the number of support rods 5 is not less than two, and they surround the upper fixed ring frame 3 and the lower fixed ring frame 4 to be connected to ensure and improve the stability of the support.

[0032] The support rod 5, the outer ring body 7 and the connecting ring 14 are welded at the end faces to form an integrated structure, so as to improve the integrity and strength of the support body 1.

[0033] The length of the support rod 5 is similar to that of the connecting piece 23, so that the mounting hole 5 and the mounting hole 6 can be quickly aligned so as to quickly screw in the fixing screw rod 3 for connection, thereby improving assembly efficiency.

[0034] A plurality of fixing screws 12, a second fixing screw 18 and a third fixing screw 24 are evenly arranged on the support body 1. At the same time, the filter body 2 is a thin layer structure with fine filter holes, and the support body 1 is in an incompletely tightened state to prevent the fixing screws 12, the second fixing screw 18 and the third fixing screw 24 from piercing the filter body 2 when connected through the filter body 2.

[0035] During assembly: put the closed end of the filter body 2 into the support body 1, so that the filter body 2 contacts the limiting groove 10 of the outer ring body 1, and is pressed in a circular shape by the inner ring body 8, insert one end of the connecting gasket 11 with the filter body 2 into the positioning groove 13, so that the positioning groove 13 is clamped with the inner ring body 8, connect the fixing screw 12 from the outside, and screw the fixing screw 12 into the mounting hole 1 and the mounting hole 2 to connect the connecting gasket 11 and the outer ring body 7; embed the other end of the filter body 2 into the limiting groove 2 16, Insert the stabilizing ring 15 on the connecting ring 14 along the positioning rod 20 and the positioning groove 2 19, so that the filter body 2 is pressed by the stabilizing ring 15 in the limiting groove 2 16, and screw the fixing screw 2 18 through the mounting hole 3 in the limiting groove 3 17 on the connecting ring 14 and connect the mounting hole 4 to connect and fix the stabilizing ring 15 with the connecting ring 14, and at the same time, the sealing ring 22 is squeezed and presses the filter body 2; screw the fixing screw 3 24 from the mounting hole 5 on the support rod 5 and connect it with the mounting hole 6, so that the support rod 5 is connected to the connecting piece 23 and fixes the filter body 2. The expansion, support and fixation of the filter body 2 are realized, so that the filter body 2 can be used efficiently in the double filter. During maintenance, reverse disassembly is performed in the above manner and a new filter body 2 is reinstalled for updating and use.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double filter screen structure, characterized in that: The invention comprises a support body (1) and a filter body (2), wherein the support body (1) is detachably connected to the filter body (2), the support body (1) comprises an upper fixed ring frame (3), a lower fixed ring frame (4) and a support rod (5), one end of the filter body (2) is connected to the upper fixed ring frame (3), the other end of the filter body (2) is connected to the lower fixed ring frame (4), one end of the support rod (5) is connected to the upper fixed ring frame (3), the other end of the support rod (5) is connected to the lower fixed ring frame (4), and the upper fixed ring frame (3) is provided with a plurality of through holes (6).

2. A double filter screen structure according to claim 1, characterized in that: The upper fixed ring frame (3) comprises an outer ring body (7), an inner ring body (8) and a fixed mesh plate (9); the through hole (6) is disposed on the fixed mesh plate (9); the fixed mesh plate (9) is connected to the inner ring wall of the outer ring body (7) to form an integrated structure; the outer ring body (7) is provided with a limiting groove 1 (10); one end of the filter body (2) is embedded in the limiting groove 1 (10); the inner ring body (8) is embedded in the limiting groove 1 (10); and the filter body (2) is disposed between the outer ring body (7) and the inner ring body (8).

3. A double filter screen structure according to claim 2, characterized in that: The outer ring body (7) is provided with a mounting hole 1, the inner ring body (8) is provided with a connecting gasket (11), the inner ring body (8) is embedded with one end of the connecting gasket (11), the other end of the connecting gasket (11) is provided with a mounting hole 2, the mounting hole 1 is threadedly connected with a fixing screw rod 1 (12), the fixing screw rod 1 (12) is threadedly connected with the mounting hole 2, the outer ring body (7) is provided with a positioning groove 1 (13), and the connecting gasket (11) is plugged into the positioning groove 1 (13).

4. A double filter screen structure according to claim 1 or 3, characterized in that: The lower fixed ring frame (4) comprises a connecting ring (14) and a stabilizing ring (15); the connecting ring (14) is provided with a second limiting groove (16) and a third limiting groove (17); the other end of the filter body (2) is engaged with the second limiting groove (16); the stabilizing ring (15) is engaged with the second limiting groove (16); the filter body (2) is arranged between the stabilizing ring (15) and the connecting ring (14); the third limiting groove (17) is provided with a third mounting hole; the stabilizing ring (15) is provided with a fourth mounting hole; the third mounting hole is threadedly connected with a second fixing screw (18); the second fixing screw (18) is threadedly connected with the fourth mounting hole; the end surface of the connecting ring (14) is provided with a second positioning groove (19); the stabilizing ring (15) is connected with a positioning rod (20); the positioning rod (20) is engaged with the second positioning groove (19).

5. A double filter screen structure according to claim 4, characterized in that: The stabilizing ring (15) is provided with a fixing groove (21), the fixing groove (21) is sleeved with a sealing ring (22), and the sealing ring (22) is press-fitted to the surface of the filter body (2).

6. A double filter screen structure according to claim 1 or 5, characterized in that: One end of the support rod (5) is connected to the outer ring body (7) to form an integral structure, and the other end of the support rod (5) is connected to the connecting ring (14) to form an integral structure. The support rod (5) is provided with a connecting plate (23), the support rod (5) is provided with a mounting hole five, the connecting plate (23) is provided with a mounting hole six, the mounting hole five is threadedly connected to a fixing screw rod three (24), and the fixing screw rod three (24) is threadedly connected to the mounting hole six.

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