Self-locking mechanism of backwashing flow controllable filter water cap for ion exchanger

Abstract

The utility model relates to a self -locking mechanism of filter water cap of ion exchanger with backwashing flow controllable, belongs to water treatment equipment spare part fixing technical field, including the filter cap of setting in the small cavity of filtrate flow through the outside, is provided with the flow channel of intercommunication small cavity inside and outside in, is provided with the self -locking mechanism for embedding type fixed filter cap on small cavity on flow channel, for the problem that existing filter cap and small cavity or pipeline inside cannot be fixed, provide a self -locking mechanism of filter water cap of ion exchanger with backwashing flow controllable.

Description

Technical Field

[0001] This application belongs to the technical field of water treatment equipment component fixing, and specifically relates to a self-locking mechanism for a backwash flow controllable filter cap for an ion exchanger. Background Technology

[0002] Currently, in environmental water treatment equipment and industrial condensate recycling deep treatment equipment, existing water collection devices typically employ several forms, including baffle pads, branch pipes, ordinary perforated plates, and multi-stage packing layers. These devices are well-suited for equipment with low flow rates and velocities ≤60m / h, but they do not require complete removal of the filter media. For equipment with high flow rates, high velocities, and large diameters, these devices are unsuitable. Branch pipe systems, with their inherent distance between branches and length, inevitably result in higher inflow rates near the branches and lower flow rates in the middle, leading to ineffective water collection. This is particularly problematic for high-velocity containers, where uniform water collection is difficult, and even more challenging for equipment requiring complete removal of the filter media. Multi-stage packing layer systems, with multiple layers of different packing particle sizes (larger particles at the bottom, smaller particles at the top), are less effective at high flow rates. When fluid passes through, it carries some filter media through the larger filter media particles. Also, when backwashing or air scrubbing occurs at high flow rates, the top-small-bottom-large packing layer becomes disordered, affecting the normal water collection of the equipment. This type of water collection device is not suitable for equipment that requires the complete removal of filter media from the body. The ordinary perforated plate water cap structure involves screwing filter heads with certain gaps onto a plate with multiple holes. When the water caps are evenly arranged, a certain degree of uniform water collection can be achieved. However, in high-flow-rate equipment, the liquid collected by the perforated plate water cap will form eddies below the perforated plate, affecting the uniformity of water collection.

[0003] Fixing a water cap when connected to small cavities and pipes presents a significant challenge. In a prior art patent (CN108814702A) for a high-precision self-locking bone screw, the technical solution includes a tightening section, a fixing section, an expansion component, and a rotating component. The tightening section receives external tightening force and rotates under that force. The fixing section contacts the through-hole of the fractured bone and fixes it. The rotating component is fitted onto the tightening section, and its rotation pulls the rotating component to move synchronously. The rotating component also provides expansion force to the expansion component, which expands under this force and automatically centers and fixes the fractured bone. The applicant proposes an embedded self-locking mechanism to fix the water cap. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing filter caps cannot be fixed inside small cavities or pipes, and to provide a self-locking mechanism for a backwash flow controllable filter cap for ion exchangers.

[0005] To achieve the above technical objectives, the following technical solution is provided: a self-locking mechanism for a backwash flow controllable filter cap for an ion exchanger, comprising a filter cap disposed outside a small cavity through which the filtrate flows, a flow pipe disposed inside the small cavity connecting the inside and outside of the small cavity, and a self-locking mechanism disposed on the flow pipe for embedding and fixing the filter cap onto the small cavity.

[0006] In one possible implementation, the self-locking mechanism includes a threaded portion located on the flow channel; an expansion portion sleeved outside the flow channel; a rotating plate fixedly connected to the expansion portion and capable of engaging with the threaded portion; and a nut located on the threaded portion and covered by the expansion portion; the expansion portion contacts the outer wall of the small cavity.

[0007] The rotation direction of the rotating plate on the threaded part is the same as the rotation direction of the nut on the threaded part;

[0008] When the rotating plate rotates, the expansion part drives the nut, which reduces the distance between the rotating plate and the nut. During this process, the nut expands the expansion part, making it come into close contact with the outer wall of the small cavity, so that the expansion part is engaged with the outer wall.

[0009] In one possible implementation, the flow channel includes a plurality of flow ports opened at the top to direct liquid flow in a radial direction, a threaded portion located behind the flow ports, and an axial port located behind the threaded portion and at the tail end.

[0010] The threaded portion also includes a separator that restricts the filter cap to the outside of the small cavity.

[0011] In one possible implementation, the separator contacts the rotating plate to ensure the structural strength of the rotating plate.

[0012] In one possible implementation, the expansion portion includes at least two symmetrically arranged cover plates, each cover plate having a straight portion that contacts the outer wall and a tapered portion disposed at the tail end of the straight portion, the tapered portion serving a locking function;

[0013] There is a gap between the cover sheets to facilitate compression and allow the cover sheets to enter the small cavity.

[0014] In one possible implementation, an auxiliary opening is provided on the side wall of the threaded portion near the axial opening.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The technical solution of this application controls the flow rate of the backflowing cleaning fluid entering the exchanger by setting a flow-limiting frame. The entire filter cap has a simple structure and is easy to install. Attached Figure Description

[0017] 1. Flow channel, 2. Filter cap, 3. Self-locking mechanism, 11. Flow port, 12. Separator, 13. Axial port.

[0018] 31 Threaded part, 32 Expansion part, 33 Rotating plate, 34 Nut, 321 Cover plate.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of this embodiment;

[0020] Figure 2 This is a side view diagram of this embodiment;

[0021] Figure 3 yes Figure 2 Sectional view at point AA;

[0022] Figure 4 This is a schematic diagram of an embedded pipe;

[0023] Figure 5 This is a schematic diagram of the embedded small can; Detailed Implementation

[0024] like Figure 1 , Figure 2 and Figure 3 The embodiment shown includes a self-locking mechanism for a backwash flow controllable filter cap for an ion exchanger, comprising a filter cap 2 disposed outside a small cavity through which the filtrate flows, a flow pipe 1 disposed inside the small cavity connecting the inside and outside of the small cavity, and a self-locking mechanism 3 disposed on the flow pipe 1 for embedding and fixing the filter cap 2 onto the small cavity.

[0025] In this embodiment, the flow channel 1 includes a plurality of flow ports 11 at the top end that allow liquid to flow in the radial direction, a threaded portion 31 located behind the flow ports 11, and an axial port 13 located behind the threaded portion 31 and at the tail end.

[0026] In this embodiment, the self-locking mechanism 3 includes a threaded portion 31 located on the flow pipe 1; an expansion portion 32 sleeved outside the flow pipe 1; a rotating plate 33 fixedly connected to the expansion portion 32 and capable of engaging with the threaded portion 31; and a nut 34 located on the threaded portion 31 and covered by the expansion portion 32; the expansion portion 32 contacts the outer wall of the small cavity; wherein the rotation direction of the rotating plate 33 on the threaded portion 31 is consistent with the rotation direction of the nut 34 on the threaded portion 31. The threaded portion 31 also includes a separator 12, which restricts the filter cap 2 to the outside of the small cavity. The separator 12 contacts the rotating plate 33 to ensure the structural strength of the rotating plate 33.

[0027] When the rotating plate 33 rotates, the expansion part 32 drives the nut 34, which reduces the distance between the rotating plate 33 and the nut 34. During this process, the nut 34 expands the expansion part 32 and makes it come into close contact with the outer wall of the small cavity, so that the expansion part 32 is engaged with the outer wall.

[0028] In this embodiment, the expansion portion 32 includes at least two symmetrically arranged cover plates 321. Each cover plate 321 has a straight portion that contacts the outer wall and a tapered portion disposed at the tail end of the straight portion, the tapered portion serving a locking function. There is a gap between the cover plates 321 to facilitate compression and allow the cover plates 321 to enter the small cavity. Preferably, the expansion portion 32 has four centrally symmetrical cover plates 321.

[0029] In this embodiment, an auxiliary opening is provided on the side wall of the threaded portion 31 near the axial opening 13.

[0030] In this embodiment, the application scenarios of the small cavity are as follows: Figure 4 The image shows a water filter cap installed on a pipe, or as shown below. Figure 5 The image shows tanks and containers that are inaccessible to workers and their tools.

[0031] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A self-locking mechanism for a backwash flow controllable filter cap for an ion exchanger, comprising a filter cap (2) disposed outside a small cavity through which the filtrate flows, wherein a flow pipe (1) is disposed inside the small cavity, connecting the inside and outside of the small cavity, characterized in that, The flow channel (1) is provided with a self-locking mechanism (3) for embedding and fixing the filter cap (2) into the small cavity.

2. The self-locking mechanism of the backwash flow controllable filter cap for an ion exchanger according to claim 1, characterized in that, The self-locking mechanism (3) includes a threaded portion (31) located on the flow pipe (1); an expansion portion (32) sleeved outside the flow pipe (1); a rotating plate (33) fixedly connected to the expansion portion (32) and capable of engaging with the threaded portion (31); and a nut (34) located on the threaded portion (31) and covered by the expansion portion (32); the expansion portion (32) is in contact with the outer wall of the small cavity; The rotation direction of the rotating plate (33) on the threaded portion (31) is the same as the rotation direction of the nut (34) on the threaded portion (31); When the rotating plate (33) rotates, the expansion part (32) drives the nut (34) to reduce the distance between the rotating plate (33) and the nut (34). In this process, the nut (34) expands the expansion part (32) so that it comes into close contact with the outer wall of the small cavity, so that the expansion part (32) is engaged on the outer wall.

3. The self-locking mechanism of the backwash flow controllable filter cap for an ion exchanger according to claim 2, characterized in that, The flow channel (1) includes a plurality of flow ports (11) opened at the top to allow liquid to flow in the radial direction, a threaded portion (31) located behind the flow ports (11), and an axial port (13) located behind the threaded portion (31) and at the tail end. The threaded portion (31) also includes a separator (12) that restricts the filter cap (2) to the outside of the small cavity.

4. The self-locking mechanism of the backwash flow controllable filter cap for an ion exchanger according to claim 3, characterized in that, The separator (12) contacts the rotating plate (33) to ensure the structural strength of the rotating plate (33).

5. The self-locking mechanism of the backwash flow controllable filter cap for an ion exchanger according to claim 4, characterized in that, The expansion portion (32) includes at least two symmetrically arranged cover plates (321), each cover plate (321) having a straight portion that contacts the outer wall and a tapered portion disposed at the tail end of the straight portion, the tapered portion serving a locking function; The cover pieces (321) have a gap between them to facilitate compression so that the cover pieces (321) can enter the small cavity.

6. The self-locking mechanism of the backwash flow controllable filter cap for an ion exchanger according to claim 3, characterized in that, An auxiliary opening is provided on the side wall of the threaded portion (31) near the axial opening (13).

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