Filter element for slow release through central pipe

Abstract

The filter element comprises a shell, a filter bottle is arranged in the shell, the center pipe is arranged in the middle of the filter bottle, a water diversion path is formed in the middle of the center pipe, an installation space is formed by the periphery of the center pipe and the inner periphery of the filter bottle, and a slow-release filter material is placed in the installation space; main water paths are arranged on the periphery of the filter bottle and the inner periphery of the shell, slow release holes are formed in the inner wall of the central pipe and can be communicated with the branch water paths and the mounting space, and the filter element structure can stably improve the VC residual chlorine removal rate effect and slow down the filter material loss rate.

Description

Technical Field

[0001] The utility model relates to a filter element which performs slow release through a central tube. Background Art

[0002] The VC filter element on the market has a poor effect in removing residual chlorine, with a removal rate of only about 20%, and it is mainly used for fragrance function; and the existing structure will cause the slow-release filter material to be consumed too quickly, resulting in a short service life of the overall filter element. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a filter element that performs slow release through a central tube.

[0004] The utility model is realized by the following technical solutions:

[0005] A filter element for slow release through a central tube comprises an outer shell, a filter bottle is arranged in the outer shell, a central tube is arranged in the middle of the filter bottle, a water diversion path is formed in the middle of the central tube, an installation space is formed by the outer periphery of the central tube and the inner periphery of the filter bottle, a slow release filter material is placed in the installation space; a main water path is arranged on the outer periphery of the filter bottle and the inner periphery of the outer shell, a slow release hole is arranged on the inner wall of the central tube, and the slow release hole can connect the water diversion path and the installation space.

[0006] In the embodiment of the utility model, a water inlet is arranged at one end of the shell, a water outlet is arranged at the other end of the shell, and the slow-release hole is arranged on the side of the central tube close to the water inlet of the shell.

[0007] In an embodiment of the utility model, a first connecting ring is provided at one end of the inner circumference of the filter bottle, the first connecting ring is sleeved on the outer circumference of one end of the central tube, and the slow-release hole is provided on the central tube above the first connecting ring.

[0008] In the embodiment of the utility model, a water inlet hole is arranged on the filter bottle located at the inner circle of the first connecting ring, and the water inlet hole can connect the water branch path and the water inlet.

[0009] In an embodiment of the utility model, a second connecting ring is provided at the other end of the inner circumference of the filter bottle, and the second connecting ring is sleeved on the outer circumference of the other end of the central tube. A water outlet hole is provided on the filter bottle located on the inner circle of the second connecting ring, and the water outlet hole can connect the water distribution path and the water outlet.

[0010] In an embodiment of the utility model, a connecting piece is also included. The connecting piece is arranged on a side of the filter bottle close to the water outlet of the shell. A water through hole is arranged on the connecting piece, and the water through hole can be connected with the water outlet hole.

[0011] In the embodiment of the utility model, the water through hole and the water outlet hole are coaxially arranged, and the diameter of the water through hole is smaller than the diameter of the water outlet hole.

[0012] In the embodiment of the utility model, a groove is arranged on the filter bottle, and the connecting piece is arranged in the groove.

[0013] The utility model provides a filter element that performs slow release through a central tube, which has the following beneficial effects: simple structure, and can stably improve the VC residual chlorine removal rate; at the same time, through the relatively gentle water flow of the water branch path, the filter material loss rate is slowed down, thereby increasing the service life of the entire filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the utility model.

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0017] Figure 3 yes Figure 1 A magnified schematic diagram of point B in the middle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] Referring to the drawings of the specification, a filter element for slow release through a central tube comprises a housing 10, a filter bottle 20 is arranged in the housing, a central tube 30 is arranged in the middle of the filter bottle, a water diversion path 31 is formed in the middle of the central tube, an installation space 21 is formed at the outer periphery of the central tube and the inner periphery of the filter bottle, and a slow release filter material (not marked in the figure) is placed in the installation space; a main waterway 13 is arranged at the outer periphery of the filter bottle and the inner periphery of the housing, and the water flow entering the housing is divided into two branches, one is the main waterway and the other is the water diversion path , where the main waterway occupies most of the water flow. It can be said that the flow rate and flow rate of the main waterway are greater than those of the branch waterway, so that the branch waterway has a smaller water flow and flow rate. A slow-release hole 22 is provided on the inner wall of the central tube, and the slow-release hole is placed at the water inlet end of the central rod. The slow-release hole can connect the branch waterway and the installation space, and then through the water pressure (negative pressure), the water flow of the branch waterway enters the installation space through the slow-release hole and is slowly released with the slow-release filter material, and then flows back from the slow-release hole to the branch waterway, and finally merges with the main waterway and is discharged from the outer shell.

[0024] Preferably, a water inlet 11 is provided at one end of the shell, a water outlet 12 is provided at the other end of the shell, and the slow-release hole is provided on the side of the central tube close to the water inlet of the shell. In use, the water inlet is provided at the lower end of the shell, and the water outlet is provided at the lower end of the shell.

[0025] Furthermore, a first connecting ring 23 is provided at one end of the inner circumference of the filter bottle, the first connecting ring is sleeved on the outer circumference of one end of the central tube, and the slow-release hole is provided on the central tube above the first connecting ring. A water inlet 24 is provided on the filter bottle located at the inner circle of the first connecting ring, and the water inlet can connect the water diversion path and the water inlet. A second connecting ring 25 is provided at the other end of the inner circumference of the filter bottle, the second connecting ring is sleeved on the outer circumference of the other end of the central tube, and a water outlet 26 is provided on the filter bottle located at the inner circle of the second connecting ring, and the water outlet can connect the water diversion path and the water outlet. By setting the water inlet, the flow rate of water entering the water diversion path can be reduced.

[0026] Furthermore, it also includes a connecting piece 40, which is arranged on the side of the filter bottle close to the water outlet of the shell, and is provided with a water hole 41, which can be connected with the water outlet hole. The water hole is coaxially arranged with the water outlet hole, and the diameter of the water hole is smaller than the diameter of the water outlet hole, which can make the water flow with slow-release filter material on the water diversion path flow out of the water diversion path and merge with the main water path, and at the same time prevent the water flow of the main water path from flowing back from the water outlet hole to the water diversion path. The filter bottle is provided with a groove 27, and the connecting piece is arranged in the groove.

[0027] Specifically, the utility model is as follows: a central tube is placed inside the filter bottle to form a branched water channel, and a slow-release hole is opened on the side of the bottom of the central tube; raw water enters from the bottom, and the central tube is diverted to form a slow-flow water channel. The raw water enters the filter bottle from the slow-release hole of the central tube, and is dissolved with the slow-release filter material to form high-concentration filter material water. Under the action of pressure difference, the high-concentration filter element water is precipitated from the slow-release hole, returned to the water channel of the central tube, and finally mixed with the raw water of the main water channel, thereby achieving the effect of efficiently removing residual chlorine and slowing down the consumption of filter material blocks, solving the problem of excessive consumption caused by excessive raw water flow, and improving the service life of the filter material.

[0028] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A filter element for slow release through a central tube, comprising a housing, a filter bottle is arranged in the housing, characterized in that: A central tube is provided in the middle of the filter bottle, a water diversion channel is formed in the middle of the central tube, an installation space is formed by the outer periphery of the central tube and the inner periphery of the filter bottle, and a slow-release filter material is placed in the installation space; a main water channel is provided on the outer periphery of the filter bottle and the inner periphery of the outer shell, and a slow-release hole is provided on the inner wall of the central tube, and the slow-release hole can connect the water diversion channel and the installation space.

2. A filter element for slow release through a central tube according to claim 1, characterized in that: A water inlet is arranged at one end of the shell, a water outlet is arranged at the other end of the shell, and the slow-release hole is arranged on one side of the central tube close to the water inlet of the shell.

3. A filter element for slow release through a central tube according to claim 2, characterized in that: A first connecting ring is arranged at one end of the inner periphery of the filter bottle, the first connecting ring is sleeved on the outer periphery of one end of the central tube, and the slow-release hole is arranged on the central tube above the first connecting ring.

4. A filter element for slow release through a central tube according to claim 3, characterized in that: A water inlet hole is arranged on the filter bottle located at the inner circle of the first connecting ring, and the water inlet hole can connect the water branch path and the water inlet.

5. A filter element for slow release through a central tube according to claim 4, characterized in that: A second connecting ring is provided at the other end of the inner circumference of the filter bottle, and the second connecting ring is sleeved on the outer circumference of the other end of the central tube. A water outlet hole is provided on the filter bottle located at the inner circle of the second connecting ring, and the water outlet hole can connect the water distribution path and the water outlet.

6. A filter element for slow release through a central tube according to claim 5, characterized in that: It also includes a connecting piece, which is arranged on the side of the filter bottle close to the water outlet of the shell, and a water hole is arranged on the connecting piece, and the water hole can be connected with the water outlet hole.

7. A filter element for slow release through a central tube according to claim 6, characterized in that: The water through hole is coaxially arranged with the water outlet hole, and the diameter of the water through hole is smaller than the diameter of the water outlet hole.

8. A filter element for slow release through a central tube according to claim 7, characterized in that: The filter bottle is provided with a groove, and the connecting piece is arranged in the groove.

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