Filter cartridge capable of being quickly disassembled and assembled and filter

Abstract

The utility model provides a filter cartridge capable of being rapidly disassembled and assembled and a filter, and belongs to the technical field of filtering equipment, the filter cartridge comprises a cylindrical inner cartridge surface with an opening in the upper end, a screw hole is formed in the bottom of the filter cartridge, a mounting guide part is arranged on the portion, close to the bottom, of the cylindrical inner cartridge surface, and the mounting guide part is connected with the edge of the screw hole. The technical problem that time and labor are wasted when the filter cartridge is disassembled and assembled in the prior art is solved.

Description

Technical Field

[0001] This application relates to the technical field of filtering devices, and particularly to a filter cartridge and a filter with quick disassembly and assembly. Background Art

[0002] There are dozens of filter cartridges at the inlet of the air compressor. During the long-term use of the filter, it is necessary to regularly remove and replace the filter cartridges. Therefore, the disassembly and assembly of the filter cartridges have become common tasks for maintaining the filter. During the process of disassembling and assembling the filter cartridges by the operator, as Figure 4 Shown is a schematic structural diagram of a filter cartridge in the prior art. Since the bottom of the filter cartridge 1' is flat, the screw is long, and the hole position of the screw hole 4' is small, it is very time-consuming and laborious for the operator to align and insert the fixing screw through the inner barrel surface 2' of the filter cartridge and into the hole position of the screw hole 4' during reinstallation, thus bringing inconvenience to the maintenance work of the filter.

[0003] In the prior art, for example, the patent application "Air Compressor Pre-Air Filter" with the publication number CN213433536U discloses an air compressor pre-air filter, which includes a box body and a filter cartridge installed on the box body. The filter cartridge includes an annular filter element and upper and lower end caps fixed at the upper and lower ends of the annular filter element. The upper end cap is provided with a sealing cover for sealing the internal space of the annular filter element, and the lower end cap is provided with an annular convex ring that bulges downward and is communicated with the internal space of the annular filter element. One side of the box body is provided with an exhaust port for connecting to the air inlet of the air compressor, and the box body is provided with a filter cartridge installation hole, and the annular convex ring is hermetically fixed in the filter cartridge installation hole. This utility model provides air for the air compressor. The outside air is filtered and purified by the filter element of the filter cartridge, enters the inside of the filter element, then enters the box body downward through the inside of the annular convex ring, and finally enters the air inlet of the air compressor through the exhaust port of the box body. This utility model can filter the air before entering the air compressor, and the inner cylinder of its filter cartridge is also a cylindrical structure.

[0004] And in the prior art, for example, the patent application "A Quick-Disassembly Filter Cartridge" with the publication number CN207628030U discloses a filter cartridge with a quick-disassembly structure. Three card holes are opened at the top of the outer filter cartridge and close to the inner wall, and arc-shaped chutes are opened at the bottoms of the card holes. A fastening screw is arranged at the top of the outer filter cartridge and above the arc-shaped chutes. For this quick-disassembly filter cartridge, through the sliding rod on the bottom nozzle of the water inlet device, it cooperates with the arc-shaped chute on the outer filter cartridge and rotates to adjust to the specified position, and is fixed by a screw. The circular funnel and the outer filter cartridge are connected through a connecting sleeve, and the quick-disassembly structure is complex and not concise enough. Summary of the Utility Model

[0005] The object of the present utility model is to provide a filter cartridge and a filter with quick disassembly and assembly, so as to solve the technical problem of how to improve the time-consuming and laborious disassembly and assembly of the filter cartridge in the prior art. The preferred technical solutions among the many technical solutions provided by the present utility model can produce many technical effects, which will be elaborated below.

[0006] To solve the above technical problem, on the one hand, an embodiment of the present application provides a filter cartridge with quick disassembly and assembly. The filter cartridge includes a cylindrical inner barrel surface with an upper opening, a screw hole is provided at the bottom of the filter cartridge, and an installation guiding portion is provided near the bottom of the cylindrical inner barrel surface. The installation guiding portion is connected to the edge of the screw hole.

[0007] In some embodiments, the installation guiding portion is a conical surface connected from the cylindrical bottom end of the inner barrel surface to the edge of the screw hole.

[0008] In some embodiments, the filter cartridge further includes an outer barrel surface and a filter element disposed between the outer barrel surface and the inner barrel surface.

[0009] In some embodiments, the upper end surface of the outer barrel surface is provided with a top opening, and the upper opening of the inner barrel surface is connected to the edge of the top opening.

[0010] On the other hand, an embodiment of the present application provides a filter, including a plurality of filter cartridges with quick disassembly and assembly as described in any one of the above, and a filter chamber. The plurality of filter cartridges are arranged side by side in the filter chamber.

[0011] In some embodiments, the lower end of the filter chamber is provided with an opening.

[0012] In some embodiments, it further includes a fixing screw. Corresponding to each of the filter cartridges, an upper mounting rack is provided in the filter chamber. The upper mounting rack is clamped in the top opening of the filter cartridge. A through hole is provided on the bottom surface of the upper mounting rack. The fixing screw sequentially passes through the through hole and the screw hole, and a fixing nut is sleeved on the bottom end of the fixing screw to fix the filter cartridge on the upper mounting rack.

[0013] According to the above technical solutions, the beneficial effects of a filter cartridge and a filter with quick disassembly and assembly of the present application are as follows:

[0014] For a filter cartridge and a filter with quick disassembly and assembly provided by the present application, an installation guiding portion is connected and arranged at the lower end of the cylindrical inner barrel surface of the filter cartridge. For the problem that it is difficult to align the screw holes during the installation of a long fixing screw, due to the setting of the installation guiding portion, when fixing the screw, the fixing screw can be guided by the installation guiding portion to penetrate into the bottom screw hole, thereby facilitating the operator to quickly and conveniently install the filter cartridge, greatly improving the disassembly and assembly efficiency of the filter cartridge, at the same time improving the convenience of disassembly and assembly of the filter cartridge, and effectively improving the maintenance efficiency of the filter.

[0015] To make the features and advantages of this application more obvious and understandable, some embodiments are specifically given below and described in detail in conjunction with the accompanying drawings. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings required for use in the embodiments will be briefly introduced below. These drawings are incorporated into the specification and constitute a part of this specification. These drawings show embodiments that conform to this application and are used together with the specification to illustrate the technical solutions of this application. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a filter cartridge with quick disassembly and assembly disclosed in an embodiment of this application;

[0018] Figure 2 It is a schematic structural diagram of a filter disclosed in an embodiment of this application;

[0019] Figure 3 It is a schematic installation structural diagram of a filter cartridge connected to an air compressor disclosed in an embodiment of this application;

[0020] Figure 4 It is a schematic structural diagram of a filter cartridge disclosed in the prior art.

[0021] Description of the Reference Numerals:

[0022] 1. Filter cartridge; 2. Cylindrical inner barrel surface; 3. Conical surface; 4. Screw hole; 5. Top opening; 6. Fixed screw; 7. Outer barrel surface; 8. Filter chamber; 9. Upper mounting bracket; 10. Fixed nut; 11. Air compressor; 12. Motor. Detailed Embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only some of the embodiments of this application, rather than all the embodiments. Usually, the components of the embodiments of this application described and shown here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application is not intended to limit the scope of this application that is required to be protected, but only represents the selected embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0024] These embodiments are provided in this application to make the application thorough and complete, and to fully convey the scope of the application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions, and numerical values set forth in these embodiments should be construed as merely exemplary, rather than as limitations.

[0025] It should be noted that the term "and / or" herein merely describes an association relationship, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set composed of A, B, and C.

[0026] In the description of this application, unless otherwise specified, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are merely for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to this application. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] In addition, the "first", "second", and similar terms used in this application do not denote any order, quantity, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Terms such as "including" or "comprising" mean that the elements before this term cover the elements listed after this term, and do not exclude the possibility of also covering other elements.

[0028] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" 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 directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0029] All terms used in this application have the same meaning as understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such herein.

[0030] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0031] Figure 1 is a schematic structural diagram of a quickly disassembled and assembled filter cartridge disclosed in an embodiment of the present application; as Figure 1 shown, the present application provides a quickly disassembled and assembled filter cartridge. The filter cartridge 1 includes a cylindrical inner barrel surface 2 with an upper opening. A screw hole 4 is provided at the bottom of the filter cartridge 1. An installation guiding portion is provided near the bottom of the cylindrical inner barrel surface 2, and the installation guiding portion is connected to the edge of the screw hole 4.

[0032] Specifically, an installation guiding portion is provided at the lower end of the cylindrical inner barrel surface of the filter cartridge 1, and the installation guiding portion is connected to the edge of the screw hole 4. During the installation process of the filter cartridge 1, the fixing screw 6 is guided through the installation guiding portion and inserted into the screw hole 4. Due to the setting of this installation guiding portion, the fixing screw 6 can be guided by the installation guiding portion and slide into the bottom screw hole 4, thereby facilitating the operator to quickly and conveniently install the filter cartridge, greatly improving the disassembly and assembly efficiency of the filter cartridge, at the same time improving the convenience of disassembly and assembly of the filter cartridge, and effectively improving the maintenance efficiency of the filter.

[0033] In some embodiments, the installation guiding portion is a conical surface 3 connected from the cylindrical bottom end of the inner barrel surface 2 to the edge of the screw hole 4.

[0034] Specifically, the inner barrel surface of the existing filter cartridge 1 is cylindrical. During the installation process, the fixing screw 4 passes through the inside of the filter cartridge 1 from the top of the filter cartridge 1. Without any guiding structure, it is difficult to quickly align with the screw hole 4 at the bottom of the filter cartridge 1. By providing a conical surface 3 between the cylindrical bottom end of the inner barrel surface 2 of the filter cartridge and the screw hole 4, during the installation process, when the fixing screw 6 passes through the inside of the filter cartridge 1, it can be guided by the conical surface 3 and slide into the screw hole 4, without the need to repeatedly probe to find the screw hole 4, and the installation is convenient and simple, saving installation time.

[0035] In some embodiments, as Figure 2 shown, the filter cartridge further includes an outer barrel surface 7 and a filter element disposed between the outer barrel surface 7 and the inner barrel surface 2.

[0036] Specifically, the filter element disposed between the outer cylindrical surface 7 and the inner cylindrical surface 2 is a filter paper layer. In some embodiments, the filter cartridge 1 is cylindrical.

[0037] In some embodiments, a top opening 5 is provided on the upper end surface of the outer cylindrical surface 7, and the upper end opening of the inner cylindrical surface 2 is connected to the edge of the top opening 5.

[0038] Specifically, the filter cartridge 1 is provided with a top opening 5, and can be installed and mated with the upper mounting frame 9 of the filter through the top opening 5.

[0039] Figure 2 is a schematic structural view of a filter disclosed in an embodiment of the present application; as Figure 2 shown, the present application also provides a filter, including a plurality of filter cartridges 1 with quick disassembly and assembly as described in any one of the above, and a filter chamber 8, and a plurality of the filter cartridges 1 are arranged side by side in the filter chamber 8.

[0040] Specifically, both the inner cylindrical surface 2 and the outer cylindrical surface 7 of the filter cartridge 1 are provided with a hollow structure, and a filter paper layer is provided between the inner cylindrical surface 2 and the outer cylindrical surface 7 of the filter cartridge 1. The filter cartridges 1 are arranged side by side in the filter chamber 8. During installation, the filter cartridges 1 are loaded into the filter chamber 8 from the bottom of the filter chamber 8 and fixed by fixing screws 6.

[0041] In some embodiments, an opening is provided at the lower end of the filter chamber 8.

[0042] Specifically, an opening is provided at the lower end of the filter chamber 8. When installing the filter cartridge 1, it is loaded into the filter chamber 8 from the lower end opening of the filter chamber 8.

[0043] In some embodiments, the filter further includes fixing screws 6. Corresponding to each filter cartridge 1, an upper mounting frame 9 is provided in the filter chamber 8. The upper mounting frame 9 is snap-fitted into the top opening 5 of the filter cartridge 1. A through hole is provided on the bottom surface of the upper mounting frame 9. The fixing screw 6 sequentially passes through the through hole and the screw hole 4, and a fixing nut 10 is sleeved on the bottom end of the fixing screw 6 to fix the filter cartridge 1 on the upper mounting frame 9.

[0044] Specifically, the installation process of the filter cartridge is as follows: the filter cartridge 1 is loaded into the filter chamber 8 from the bottom of the filter chamber 8 upward. The top opening 5 of the filter cartridge 1 is snap-fitted onto the upper mounting frame 9. The fixing screw 6 is inserted into the interior of the filter cartridge 1 from the upper mounting frame 9. After passing through the interior of the filter cartridge 1, it is guided by the tapered surface 3 into the screw hole 4 at the bottom of the filter cartridge 1. Then, the fixing nut 10 is screwed into the bottom end of the fixing screw 6 from below to fix the filter cartridge 1 on the upper mounting frame 9. With the filter cartridge structure of this solution, due to the guiding and mounting portion of the tapered surface provided at the bottom end of the inner cylindrical surface of the filter cartridge, the fixing screw is directly inserted into the screw hole under the guidance of the tapered surface during the insertion process, which is simple, convenient, time-saving and labor-saving.

[0045] Figure 3 This is a schematic diagram of the installation structure of a filter cartridge connected to an air compressor disclosed in an embodiment of the present application; as Figure 3 shown, the filter is connected to the air intake passage of the air compressor 11 through a flange. Driven by the motor 12, the air compressor 11 allows the gas to flow from the filter to the air compressor 11. The filter provides filtered gas for the air compressor 11. The filter cartridge 1 is installed in the filter chamber 8. A plurality of similar filters are provided at the inlet of the air compressor 11, and a plurality of filter cartridges 1 are built-in.

[0046] Adopting the above technical solution of the present application, although there are dozens of filter cartridges at the inlet of the air compressor, their sizes are different, with a diameter between 30 and 50 mm and a relatively long length of about 120 mm. During the long-term use of the filter, the filter cartridges need to be removed and replaced regularly. Through this technical solution, by providing a tapered guiding installation part on the inner cylindrical surface of the filter cartridge, the fixing screw 6 can be quickly inserted into the small opening at the bottom end of the filter cartridge 1 by the principle of gradually narrowing the filter cartridge opening, so as to achieve the quick disassembly and assembly of the filter cartridge. This installation structure is simple and convenient for disassembly and assembly, saving a lot of time for the replacement of the filter cartridge and improving the replacement efficiency. It solves the technical problem of how to improve the time-consuming and laborious disassembly and assembly of the filter cartridge in the prior art.

[0047] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here based on the above description.

[0048] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. And these modifications, changes or combinations do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

1. A quickly disassembled and assembled filter cartridge, characterized in that, The filter cartridge (1) includes a cylindrical inner barrel surface (2) with an upper end opening. A screw hole (4) is provided at the bottom of the filter cartridge (1). An installation guiding part is provided near the bottom of the cylindrical inner barrel surface (2), and the installation guiding part is connected to the edge of the screw hole (4).

2. The quick-disassembly filter cartridge according to claim 1, wherein, The installation guiding part is a conical surface (3) connecting from the cylindrical bottom end of the inner barrel surface (2) to the edge of the screw hole (4).

3. The quick-disassembly filter cartridge according to claim 2, wherein, The filter cartridge further includes an outer barrel surface (7) and a filter element disposed between the outer barrel surface (7) and the inner barrel surface (2).

4. The quickly detachable filter cartridge according to claim 3, wherein, The upper end surface of the outer barrel surface (7) is provided with a top opening (5), and the upper end opening of the inner barrel surface (2) is connected to the edge of the top opening (5).

5. A filter, characterized in that, It includes a plurality of filter cartridges (1) with quick disassembly and assembly as described in any one of claims 1-4, and a filter chamber (8). The plurality of filter cartridges (1) are arranged side by side in the filter chamber (8).

6. The filter according to claim 5, characterized in that, An opening is provided at the lower end of the filter chamber (8).

7. The filter according to claim 6, wherein It further includes a fixing screw (6). Corresponding to each filter cartridge (1), an upper mounting bracket (9) is provided in the filter chamber (8). The upper mounting bracket (9) is clamped in the top opening (5) of the filter cartridge (1). A through hole is provided on the bottom surface of the upper mounting bracket (9). The fixing screw (6) sequentially passes through the through hole and the screw hole (4), and a fixing nut (10) is sleeved on the bottom end of the fixing screw (6) to fix the filter cartridge (1) on the upper mounting bracket (9).

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