TWM632540U - Filter with replaceable filter element - Google Patents

Abstract

This model provides a filter with a replaceable filter element, including: a shell body, a filter element unit, and a cover body. In this creation, the guide tube portion and the limit ring portion of the shell body are matched with the guide ring portion and filter element cover of the filter element unit. The part is designed so that when the filter element unit is installed in the housing groove of the housing body, the guide ring part of the filter element unit can be tightly sleeved in the guide pipe part of the housing body and the filter element cover of the filter element unit Therefore, the structural design of the shell body and the filter element unit can make the filter element unit be positioned when it is installed on the shell body without the need for matching with the cover body. The shell body positions the filter element unit, so the convenience of filter element assembly can be effectively improved when replacing the filter element.

Description

Filters with replaceable cartridges

The present invention relates to the field of filters, in particular to a filter with a replaceable filter core.

General filters are used to filter fluids such as impurities in drinking water to remove colored, odorous substances and impurities that affect the appearance of the fluid. The principle is to filter out impurities in the fluid by passing the fluid through the filter material or adsorption.

Referring to Fig. 1, a general filter is mainly composed of a housing body 11, a filter element 12 disposed in the housing body 11, and a housing cover 13 locked on the housing body 11 and pressed against the filter element 12. The filter element 12 is clamped and sealed by the first pressing ring part 111 on the inner bottom surface of the shell body 11 and the second pressing ring part 131 in the center of the case cover 13 . Let the fluid enter the housing body 11 from the inlet 132 of the housing cover 13, and then be filtered by the filter element 12 and discharged from the outlet 133 of the housing cover 13, so as to filter impurities in the fluid and achieve the purpose of filtering.

In addition, during the assembly process of the filter element 12, the filter element 12 is placed inside the shell body 11 first, and then the shell cover 13 is locked on the shell body 11 and pressed against the shell cover 13 of the filter element 12, however When the filter element 12 is placed inside the housing body 11, only one end of the filter flow channel 121 of the filter element 12 is sleeved on the convex portion 112 on the bottom surface of the housing body 11, and the other end of the filter element 12 has no positioning structure. Therefore, Both the housing body 11 and the filter element 12 are not in a stable positioning state, that is, the filter element 12 is easy to shake, so that after the housing cover 13 is locked on the housing body 11, the second pressing ring portion 131 of the housing cover 13 cannot Each time, it is precisely pressed against and positioned on the ring end surface of the filter element 12 , and finally the path of fluid entry and the path of fluid output cannot be effectively separated, and the filtering function is lost.

The purpose of the present invention is to provide a filter with a replaceable filter element, which mainly improves the convenience of assembling the filter element.

In order to achieve the above purpose, the technical solution adopted by the present invention is a filter with a replaceable filter element, which includes: a shell body with an accommodating groove, a guide pipe part and a limit ring part, and the accommodating groove has a The bottom surface of the groove, a wall surface of the groove and a notch, the guide tube protrudes from the bottom surface of the groove and has a fluid outlet connected to the accommodating groove, the limiting ring protrudes from the wall surface of the groove, and the limiting The ring diameter of the bit ring part is smaller than the groove diameter of the accommodating groove; a filter element unit is detachably arranged in the accommodating groove of the shell body, and forms a filter space with the accommodating groove, and the filter element unit has a filter element , a first filter element cover, and a second filter element cover, the filter element has a first end portion, a second end portion opposite to the first end portion and a penetrating through the first end portion and the second end portion The filter element flow channel, the first filter element cover is sealed on the first end of the filter element, and has a guide ring portion that is hermetically sleeved on the guide pipe portion, the second filter element cover is sealed on the filter element The second end portion of the filter element has a filter element cover that is stuck on the limiting ring; and a cover that can be detachably sealed in the notch of the shell body.

The effect of this new model lies in: this creation uses the guide tube part and the limit ring part of the shell body to match the guide ring part and the filter element cover part of the filter element unit so that the filter element unit can be installed in the accommodating groove of the shell body At this time, the guide ring portion of the filter element unit can be tightly sleeved on the guide tube portion of the housing body, and the filter element cover portion of the filter element unit can be stuck against the stop ring portion of the housing body. Therefore, by The structural design of the shell body and the filter element unit enables the filter element unit to be positioned when it is installed on the shell body, without the need to position the filter element unit with the cover body and the shell body, so that the filter element assembly can be effectively improved when replacing the filter element convenience.

Preferably, the limiting ring portion of the housing body is connected to the notch.

Preferably, the guide ring portion of the first filter element cover has a guide slope and a sealing ring recess connected to the guide slope, and the seal ring recess is provided with a sealing ring sleeved in the guide pipe portion sealing ring.

Preferably, the second filter element cover further has a filter element pull part connected to the filter element cover.

Preferably, the housing body further has a pair of external threaded portions corresponding to the limiting ring portion, and the cover body has an internal threaded portion screwed with the external threaded portion.

11: shell body

111: the first pressing ring part

112: convex part

12: filter element

121: Filtration channel

13: shell cover

131: the second pressing ring part

132: Entrance

133:Export Department

20: shell body

21: Connecting part

211: Fluid inlet

22: storage tank

221: Groove bottom

222: Groove wall

223: notch

224: slot diameter

23: Guiding tube

231: Fluid outlet

24: limit ring part

241: ring diameter

25: External thread part

30:Filter element unit

31: filter element

311: first end

312: second end

313: filter flow channel

32: The first filter element cover

321: Guide ring part

322: guide bevel

323: Seal ring recess

324: perforation

33:Second filter element cover

331: Filter element cover

332: Filter element pull part

34: sealing ring

40: cover body

41: Internal thread part

50: filter seat

51: Entrance

52:Export department

53: Outlet part

90: Filter space

Fig. 1 is the combined sectional view of general filter; Fig. 2 is the three-dimensional exploded view of the new embodiment; Fig. 3 is the three-dimensional combined view of the new embodiment; Fig. 4 is the sectional view of Fig. 3 line segment 4-4; Fig. 5 It is a cross-sectional view of line segment 5-5 in FIG. 3; and FIG. 6 is a perspective view of another type of filter seat assembled in the present invention.

The foregoing and other technical contents, features and functions of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings.

Referring to Fig. 2 to Fig. 5, the embodiment of the present invention provides a filter with a replaceable filter element, which is mainly composed of a shell body 20, a filter element unit 30 and a cover body 40 assembled on a filter seat 50 , so as to form a filter, because this filter seat 50 is a conventional component and is not a creative feature of this creation, so it will not be described in detail, wherein: The shell body 20 is roughly in the shape of a cylinder, and has a connecting portion 21, an accommodating groove 22, a guiding pipe portion 23, a limiting ring portion 24 and an external thread portion 25; the connecting portion 21 is used for It is screwed into and positioned at the filter seat 50, and has a plurality of fluid inlets 211; the accommodating groove 22 communicates with each of the fluid inlets 211, and has a groove bottom 221, a groove wall 222 extending from the periphery of the groove bottom 221 and A pair of notches 223 corresponding to the bottom surface 221 of the groove and formed by one end of the wall surface 222 of the groove; Outlet 231, in this embodiment, the fluid outlet 231 is surrounded by each of the fluid inlets 211; the limiting ring portion 24 is protruding from the groove wall surface 222 and connected to the notch 223, the ring of the limiting ring portion 24 The diameter 241 is smaller than the groove diameter 224 of the accommodating groove 22 , and the external thread portion 25 is disposed outside the accommodating groove 22 and corresponds to the limiting ring portion 24 .

The filter element unit 30 is detachably arranged in the accommodating groove 22 of the housing body 20, and forms a filtering space 90 with the accommodating groove 22. The filter element unit 30 has a filter element 31, a first filter element cover 32, and a second filter element cover 33; the filter element 31 has a first end portion 311, a second end portion 312 opposite to the first end portion 311 and a through the first end portion 311 and the second end portion 312 The filter element flow channel 313; the first filter element cover 32 is sealed at the first end 311 of the filter element 31, and has a guide ring portion 321 communicating with the filter element flow channel 313, and the guide ring portion 321 is sealed The guide pipe part 23 is sleeved on the shell body 20, so that part of the guide pipe part 23 is located in the filter element flow channel 313. In this embodiment, the guide ring part 321 has a guide slope 322, And a seal ring recess 323 connected to the guide inclined surface 322, the seal ring recess 323 forms a perforation 324 communicating with the filter core flow channel 313, and is provided with a seal ring 34 that is sleeved in the guide pipe part 23 ; The second filter element cover 33 is sealed at the second end 312 of the filter element 31, and has a filter element cover 331 stuck on the limiting ring portion 24. In this embodiment, the second filter element cover 33 is more There is a filter element pull portion 332 connected to the filter element cover portion 331 , and the filter element pull portion 332 is adjacent to the notch 223 of the housing body 20 .

The cover 40 is detachably sealed in the notch 223 of the shell body 20 . In this embodiment, the cover 40 has an internal thread portion 41 screwed with the external thread portion 25 .

The above is the narration of the filter of the new replaceable filter element, and the actuation mode of the creation is described as follows.

In this creation, the guide pipe portion 23 and the limit ring portion 24 of the housing body 20 are designed together with the guide ring portion 321 and the filter element cover portion 331 of the filter element unit 30, so that the filter element unit 30 is installed in the container of the housing body 20. When placed in the groove 22, through the design of the guide slope 322 of the guide ring portion 321 of the filter element unit 30, the guide tube portion 23 of the housing body 20 can be smoothly inserted into the seal ring recess 323, so that the filter element unit The guide ring part 321 of 30 can be sleeved in the guide tube part 23 of the shell body 20 in a sealed manner, and at the same time, the filter element flow channel 313 of the filter element 31 is sealed and the guide tube part 23 of the shell body 20 is sealed. The fluid outlet 231 communicates with the filter element channel 313 of the filter element 31; in addition, when the filter element unit 30 is installed in the accommodating groove 22 of the housing body 20, the filter element cover 331 of the filter element unit 30 can be stuck against the The limit ring portion 24 of the housing body 20, therefore, the structural design of the housing body 20 and the filter element unit 30 can enable the filter element unit 30 to be positioned when it is installed in the housing body 20 without the need for the cover body 40 The filter element unit 30 is positioned with the housing body 20, so that the convenience of assembly can be effectively improved when replacing the filter element, and at the same time, the path of fluid entry and the path of fluid output are effectively separated to ensure the filtering effect.

It is worth noting that, referring back to FIG. 5 , when replacing the filter element unit 30 , after the cover 40 is unscrewed from the external thread portion 25 of the housing body 20 , due to the second filter element cover of the filter element unit 30 33 has the design of the filter element pull part 332 adjacent to the notch 223, therefore, the filter element unit 30 can be pulled away from the shell body 20 to carry out another new filter element after the filter element pull part 332 can be buckled and pulled down. The unit 30 is assembled, and accordingly, the convenience of filter element assembly can be improved through the design of the filter element pull portion 332 of the filter element unit 30 .

In addition, referring back to Fig. 4 and Fig. 5, when the shell body 20, the filter element unit 30 and the cover 40 are assembled to each other and arranged on the filter seat 50 to form a filter, the fluid filtering path is as follows: from the filter seat 50 The inlet portion 51 enters, and then enters the filter space 90 formed by the filter element unit 30 and the shell body 20 through the fluid inlet 211 of the housing body 20, and then enters the filter element flow of the filter element 31 through the filter space 90 through the filter element 31 313 , the filtering operation of fluid impurities is completed at this moment, and finally, the filtered fluid flows through the fluid outlet 231 of the shell body 20 and is output from the outlet portion 52 of the filter seat 50 .

It is worth mentioning that, as shown in Figure 6, this creation provides another embodiment of a filter with a replaceable filter element, which is also assembled on the filter seat 50 after the shell body 20, the filter element unit and the cover body 40 are mutually assembled. , so as to form a filter, wherein the filter seat 50 has not only an inlet portion 51 and an outlet portion 52, but also a drain port portion 53 for draining water, so that this creation can be assembled in various types of filtration Seat 50.

In summary, the above-mentioned embodiments and diagrams are only preferred embodiments of this creation, and should not be used to limit the scope of implementation of this creation. For example, all equal changes and modifications made according to the patent scope of this creation should belong to Within the scope covered by this creation patent.

20: shell body

21: Connecting part

211: Fluid inlet

223: notch

231: Fluid outlet

25: External thread part

30:Filter element unit

31: filter element

32: The first filter element cover

321: Guide ring part

322: guide bevel

323: Seal ring recess

324: perforation

33:Second filter element cover

331: Filter element cover

40: cover body

41: Internal thread part

50: filter seat

52:Export department

Claims (5)

A filter with a replaceable filter element, comprising: A shell body has an accommodating groove, a guiding pipe portion and a limiting ring portion, the accommodating groove has a groove bottom surface, a groove wall surface and a notch, the guiding pipe portion protrudes from the groove bottom surface It also has a fluid outlet communicating with the accommodating groove, the limiting ring part is protruded on the wall surface of the groove, and the ring diameter of the limiting ring part is smaller than the groove diameter of the accommodating groove; A filter element unit is detachably arranged in the accommodation groove of the shell body and forms a filtering space with the accommodation groove. The filter element unit has a filter element, a first filter element cover, and a second filter element cover. The filter element has a first end, a second end opposite to the first end, and a filter element flow channel passing through the first end and the second end, and the first filter element cover is sealed on the filter element the first end of the filter element, and has a guide ring portion sealedly sleeved on the guide pipe portion, the second filter element cover is sealed on the second end portion of the filter element, and has a the element cover portion of the annulus; and A cover is detachably sealed in the notch of the shell body. The filter with a replaceable filter element as claimed in item 1, wherein the limiting ring part of the housing body is connected to the notch. The filter with a replaceable filter element as described in Claim 1, wherein the guide ring portion of the first filter element cover has a guide slope and a seal ring recess connected to the guide slope, and the seal ring recess is provided with a seal The sealing ring is sleeved on the guide tube part. The filter with a replaceable filter element as claimed in item 1, wherein the second filter element cover further has a filter element pull part connected to the filter element cover. The filter with a replaceable filter element as described in Claim 1, wherein the housing body further has an external thread portion corresponding to the limiting ring portion, and the cover body has an internal thread portion screwed on the external thread portion.

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