TWM543109U - Filter tube cover and filter structure - Google Patents

Description

Filter cartridge cover and filter structure

This creation is about a filter cartridge cover and a filter core structure.

Generally, the filter core structure comprises a filter core tube and a cylinder cover, wherein the filter core tube is provided with a filter core, and the cylinder cover is disposed on the filter core tube for connecting with the water outlet pipeline and the water inlet pipeline, wherein The conventional cylinder cover, as described in the patent TW M450419, has a water outlet and a water inlet at the top, and a bottom digging chamber for the sleeve at the filter tube mouth, so that the filter core tube and the water outlet are connected with the water inlet, thereby achieving separation. The function of discharging and entering the water and closing it.

However, the part of the cylinder cover connected to the filter cartridge must be combined with the structure of the filter cylinder to form a specific step structure, etc., so as to be locked on the filter cartridge. Therefore, the filter cartridges of different sizes or different nozzle structures must be used. Different types of cylinder covers must be opened separately for the manufacturer, and the inventory pressure is large. In addition, it is difficult to manufacture a plurality of pipes and stepped structures on the same cylinder cover. Manufacturing costs.

The main purpose of this creation is to provide a filter cartridge cover and a filter core structure, which can reduce the manufacturing cost and can be applied to different sizes of filter cartridges.

In order to achieve the above object, the present invention provides a filter cartridge cover for covering a filter cartridge, the filter cartridge having a head having a water inlet and a drain port at the top end of the head The bottom end has a first positioning portion, and the filter cartridge cover comprises a cover body and a sleeve.

The opposite ends of the cover body are respectively a top portion and a bottom portion. The bottom portion is hollowed out to define a chamber. The top portion defines a water inlet and a water outlet. The water inlet communicates with the chamber through a water inlet passage. The nozzle is connected to the chamber by a water outlet passage, the bottom portion has a first limiting portion; the sleeve is detachably embedded in the housing of the cover body, and the sleeve has a second limiting portion. The second limiting portion and the first limiting portion are engaged with each other to make the sleeve difficult to move or rotate relative to the cover body. The kit further has a second positioning portion, and the second positioning portion can be coupled with the first positioning portion. Positioning each other; wherein, when the cartridge cover is disposed on the cartridge, the first positioning portion and the second positioning portion are positioned relative to each other such that the sleeve cannot be removed from the head of the cartridge, and The water inlet of the filter cartridge is connected to the water inlet passage of the cover body, and the drain port of the filter cartridge is connected to the water outlet passage of the cover body.

In order to achieve the above object, the present invention also provides a filter core structure comprising a filter cartridge and a filter cartridge cover.

The filter cartridge has a head having a water inlet and a drain port, and a bottom end of the head has a first positioning portion; the filter cartridge cover includes a cover body and a sleeve, The opposite ends of the cover body are respectively a top portion and a bottom portion, and the bottom portion is hollowed out to define a chamber, the top portion defines a water inlet and a water outlet, and the water inlet communicates with the chamber through a water inlet passage, the water outlet Connected to the chamber by a water outlet passage, the bottom portion has a first limiting portion, the sleeve is detachably embedded in the chamber of the cover body, and the sleeve has a second limiting portion, The second limiting portion and the first limiting portion are engaged with each other to make the sleeve difficult to move or rotate relative to the cover. The kit further has a second positioning portion, and the second positioning portion can be coupled to the first positioning portion. Positioning with each other; wherein, when the cartridge cover is disposed on the cartridge, the first positioning portion and the second positioning portion are positioned relative to each other such that the sleeve cannot be removed from the head of the cartridge, and the The water inlet of the filter cartridge is connected to the water inlet passage of the cover body, the drain port of the filter cartridge and the cover The outlet channel connection.

Therefore, the filter cartridge cover provided by the present invention can be applied to different sizes of filter cartridges by replacing kits of different inner diameters, and the cover body can be reduced in manufacturing cost without replacement.

The following is a description of possible implementations of the present invention by way of example only, and is not intended to limit the scope of the creation of the present invention.

Referring to FIG. 1 to FIG. 5 , the present invention provides a filter cartridge cover for covering a filter cartridge 30 having a head 31 having a water inlet 302 and a top end thereof. A drain port 301 has a first positioning portion at a bottom end thereof. The cartridge cover includes a cover 10 and a sleeve 20.

The two ends of the cover body 10 are respectively a top portion 11 and a bottom portion 12. The bottom portion 12 is hollowed out to define a chamber 121. The top portion 11 defines a water inlet port 102 and a water outlet 101. The water inlet port 102 is filled with water. The channel 104 is in communication with the chamber 121. The water outlet 101 communicates with the chamber 121 by a water outlet passage 103. The bottom portion 12 has a first limiting portion. The sleeve 20 is hollow (the center forms a through hole 21). Removably embedded in the chamber 121 of the cover body 10, the kit 20 has a second limiting portion, and the second limiting portion and the first limiting portion are engaged with each other to make the kit 20 difficult to The cover 10 is moved or rotated, and the kit 20 further has a second positioning portion, and the second positioning portion can be positioned with the first positioning portion; wherein when the filter cartridge cover is disposed on the filter cartridge 30 The first positioning portion and the second positioning portion are positioned relative to each other such that the sleeve 20 cannot be removed from the head 31 of the filter cartridge 30, and the water inlet 302 of the filter cartridge 30 and the water inlet channel of the cover 10 104 is connected, and the drain port 301 of the filter cartridge 30 is connected to the water outlet passage 103 of the cover body 10.

The present invention also provides a filter core structure comprising a filter cartridge 30 and a filter cartridge cover.

The filter cartridge 30 has a head 31 having a water inlet 302 and a drain port 301. The bottom end of the head 31 has a first positioning portion. The filter cartridge cover includes a cover. The body 10 and a kit 20, the opposite ends of the cover body 10 are a top portion 11 and a bottom portion 12 respectively. The bottom portion 12 is hollowed out to define a chamber 121. The top portion 11 defines a water inlet 102 and a water outlet 101. The water inlet 102 communicates with the chamber 121 through a water inlet passage 104. The water outlet 101 communicates with the chamber 121 via a water outlet passage 103. The bottom portion 12 has a first limiting portion, and the sleeve 20 is hollow ( The central portion defines a through hole 21) and is detachably embedded in the chamber 121 of the cover body 10. The sleeve 20 has a second limiting portion, and the second limiting portion and the first limiting portion are engaged with each other. The kit 20 is difficult to move or rotate relative to the cover 10. The kit 20 further has a second positioning portion, and the second positioning portion can be positioned with the first positioning portion; wherein, when the filter cartridge cover is provided During the filter cartridge 30, the first positioning portion and the second positioning portion are positioned relative to each other such that the sleeve 20 cannot be from the head of the filter cartridge 30. 31 is removed, and the inlet filter 30 of the core barrel 302 and the cover 10 of the inlet passage 104 is connected to a filter drain 30 of the core barrel is connected to the outlet channel 301,103 of the cover 10.

In more detail, in the embodiment, the head 31 of the filter cartridge 30 sequentially includes a first section 311, a second section 312 and a third direction toward the top 11 of the cover 10. Section 313, the outer diameter of the first section 311 is larger than the outer diameter of the second section 312, the outer diameter of the second section 312 is larger than the outer diameter of the third section 313, and the drain 301 is located in the third section. At the top of the 313, the water inlet 302 is located at the top of the second section 312; the first positioning portion includes a plurality of positioning protrusions 303, and the positioning protrusions 303 surround the first section of the head 31 of the filter cartridge 30 The 311 is spaced apart, and the second positioning portion includes a plurality of annular protrusions 23 disposed around the inner wall of the sleeve 20, and a groove 24 is formed between any two adjacent annular protrusions 23, and the positioning protrusions are formed. The block 303 can enter the inside of the kit 20 via the recesses 24, and rotating the kit relative to the filter cartridge 30 can move the positioning protrusions 303 over the loops 23, so that the filter cartridge 30 cannot be self-contained. The cover 20 is removed; the top 11 of the cover 10 extends toward the cavity 121 to form a first rim 122, and a first rim 111 is formed in the first rim 122. The channel 104 is located between the first ring edge 122 and the second ring edge 111. The water outlet channel 103 is located in the second ring edge 111. The second section 312 of the head 31 of the filter cartridge 30 is embedded in the second ring 312. In the first rim 122, a third section 313 of the head 31 of the cartridge 30 is embedded in the second rim 111.

In addition, the first limiting portion is a limiting protrusion 123, and the second limiting portion is a limiting slot 22, and the limiting protrusion 123 can be embedded in the limiting slot 22 to make the kit 20 It is difficult to move or rotate relative to the cover body 10. Preferably, the limiting protrusion 123 is elongated and extends axially. The limiting slot 22 is also elongated and axially extended. More preferably, the limiting protrusion is convex. The width and height of the portion 123 are tapered toward the top portion 11 of the cover body 10. The width and depth of the limiting slot 22 are also tapered toward the top portion 11 of the cover body 10, so that the limiting protrusion portion is formed. 123 is more accessible to the limit slot 22 and provides a better compression effect.

Further, the outer diameter of the sleeve 20 is slightly tapered toward the top 11 of the cover body 10, that is, the sleeve 20 is inserted into the cover body 10 with the smaller outer diameter end thereof, however, when The cover 20 has been inserted into the cover 10, and the end of the set 20 having a larger outer diameter can exert a pressing effect on the inner wall of the chamber 121 of the cover 10, so that the set 20 is fixed in the cover 10.

However, only the engagement between the first limiting portion and the second limiting portion and the taper of the outer diameter of the sleeve 20 cannot reliably fix the sleeve 20 and the cover 10 to each other, and thus may further include at least one a fixing member that fixes the cover 10 and the sleeve 20 to each other. For example, the fixing member is a screw 40. The cover 10 is provided with at least one hole 112. The sleeve 20 is provided with at least one screw hole. After the screw 40 passes through the hole 112 , the screw 40 is screwed to the screw hole 25 to fix the sleeve 20 and the cover 10 .

In addition, the kit 20 can be further provided with at least one hollow portion 26 (in this embodiment, a plurality of hollow portions 26 are spaced around the through hole 21), the hollow portion 26 axially passes through the kit 20, thereby saving The material of the kit and the flexibility of the kit are more conducive to the fastening of the cover.

With the above structure, the filter cartridge cover provided by the present invention can be replaced with different kits to match different sizes of filter cartridges, thereby reducing the production cost, and the kit and the cover body are separately manufactured to be easily formed, and the kit and the cover body are easy to assemble. Or disassembly, does not increase the difficulty of use, on the other hand, the cover and the kit can be made of different materials, for example, the cover is made of a relatively hard, crash-resistant material, and the kit is made of a more flexible material. In order to further improve performance.

10‧‧‧ cover
101‧‧‧Water outlet
102‧‧‧ water inlet
103‧‧‧Water outlet
104‧‧‧Water inlet
11‧‧‧ top
111‧‧‧second rim
112‧‧‧ hole
12‧‧‧ bottom
121‧‧ ‧ room
122‧‧‧First ring
123‧‧‧Limited convex
20‧‧‧ kit
21‧‧‧Perforation
22‧‧‧Limited slot
23‧‧‧ ring convex
24‧‧‧ Groove
25‧‧‧ screw holes
26‧‧‧镂空部
30‧‧‧ filter cartridge
301‧‧‧Drainage
302‧‧‧ Inlet
303‧‧‧ positioning bumps
31‧‧‧ head
311‧‧‧ first section
312‧‧‧Second section
313‧‧‧ third section
40‧‧‧ screw

Figure 1 is an exploded perspective view of the filter cartridge cover of the present invention. Figure 2 is a perspective view of the filter structure of the present invention. Figure 3 is an exploded perspective view of the filter structure of the present invention. Figure 3A is a schematic diagram of the limit slot of the present creation. Figure 4 is a partial cross-sectional view of the filter structure of the present invention. Figure 5 is a partial cross-sectional view of another angle of the filter structure of the present invention.

10‧‧‧ cover

101‧‧‧Water outlet

102‧‧‧ water inlet

20‧‧‧ kit

21‧‧‧Perforation

22‧‧‧Limited slot

11‧‧‧ top

112‧‧‧ hole

12‧‧‧ bottom

25‧‧‧ screw holes

26‧‧‧镂空部

40‧‧‧ screw

Claims (20)

A filter cartridge cover for covering a filter cartridge, the cartridge having a head having a water inlet and a drain at the top end, the bottom end of the head having a first positioning portion The filter cartridge cover comprises: a cover body, the opposite ends are respectively a top portion and a bottom portion, the bottom portion is hollowed out to form a chamber, the top portion defines a water inlet and a water outlet, and the water inlet is borrowed into the water inlet The passage communicates with the chamber, the water outlet is connected to the chamber by a water outlet passage, the bottom portion has a first limiting portion; and a sleeve is detachably embedded in the chamber of the cover body for the hollow. The kit has a second limiting portion, the second limiting portion and the first limiting portion are engaged with each other to make the sleeve difficult to move or rotate relative to the cover body, and the kit further has a second positioning portion. The second positioning portion can be positioned with the first positioning portion; wherein when the cartridge cover is disposed on the filter cartridge, the first positioning portion and the second positioning portion are positioned relative to each other such that the kit cannot be self-contained The head of the filter cartridge is removed, and the water inlet of the filter cartridge is connected to the water inlet channel of the cover body The filtrate drain connected to the core barrel outlet channel of the cover. The filter cartridge cover of claim 1, wherein the first positioning portion comprises a plurality of positioning protrusions, the positioning protrusions are spaced around the head of the filter cartridge, and the second positioning portion comprises a plurality of rings Convex, the ring protrusions are disposed around the inner wall of the sleeve, and a groove is formed between any two adjacent ring protrusions, and the positioning protrusions can enter the inside of the sleeve via the grooves, and rotate relative to the filter barrel The kit enables the positioning tabs to move over the loops so that the cartridge cannot be removed from the kit. The filter cartridge cover of claim 1, wherein the first limiting portion is a limiting convex portion, and the second limiting portion is a limiting slot, and the limiting convex portion can be embedded in the limiting position The groove is such that the kit is difficult to move or rotate relative to the cover. The filter cartridge cover of claim 3, wherein the limiting protrusion is elongated and axially extended, and the limiting slot is also elongated and axially extended. The filter cartridge cover of claim 4, wherein the width and height of the limiting protrusion are tapered toward the top of the cover, and the width and depth of the limiting slot are also toward the top of the cover. The direction is tapered. The filter cartridge cover of claim 1, wherein the outer diameter of the sleeve is slightly tapered toward the top of the cover. The filter cartridge cover according to any one of claims 1 to 6, wherein a top of the cover body extends toward the chamber to form a first rim, and a second rim is formed in the first rim. The water inlet channel is located between the first ring edge and the second ring edge, and the water outlet channel is located in the second ring edge. The filter cartridge cover according to any one of claims 1 to 6, further comprising at least one fixing member that fixes the cover body and the kit to each other. The filter cartridge cover of claim 8, wherein the fixing member is a screw, the cover body is provided with at least one hole, and the sleeve is provided with at least one screw hole, and the screw passes through the hole and is screwed to the screw hole. The filter cartridge cover of any of claims 1 to 6, wherein the kit is provided with at least one hollow portion that axially passes through the kit. A filter core structure comprising: a filter cartridge having a head having a water inlet and a drain at a top end thereof, the bottom end of the head having a first positioning portion; The cartridge cover includes a cover body and a sleeve. The opposite ends of the cover body are respectively a top portion and a bottom portion. The bottom portion is hollowed out to define a chamber, and the top portion defines a water inlet and a bottom portion. a water inlet, the water inlet is connected to the chamber by a water inlet passage, the water outlet is connected to the chamber by a water outlet passage, the bottom portion has a first limiting portion, and the sleeve is detachably embedded in the hollow a housing of the cover body, the kit has a second limiting portion, the second limiting portion and the first limiting portion are engaged with each other to make the sleeve difficult to move or rotate relative to the cover body, and the kit further has a second positioning portion that can be positioned with the first positioning portion; wherein the first positioning portion and the second positioning portion are in contact with each other when the cartridge cover is disposed on the filter cartridge Positioning prevents the kit from being removed from the head of the filter cartridge, and the inlet of the filter cartridge is The lid is connected into the water passage, the filter drain outlet channel of the core barrel and the body of the connector cover. The filter core structure of claim 11, wherein the head of the filter cartridge sequentially includes a first section, a second section and a third section toward the top of the cover body, the first The outer diameter of the section is larger than the outer diameter of the second section, the outer diameter of the second section is larger than the outer diameter of the third section, the water outlet is located at the top of the third section, and the water inlet is located at the top of the second section . The filter core structure of claim 12, wherein the first positioning portion comprises a plurality of positioning protrusions, and the positioning protrusions are spaced around a first section of the head of the filter cartridge, the second positioning portion The plurality of ring protrusions are disposed, and the ring protrusions are disposed around the inner wall of the sleeve, and a groove is formed between any two adjacent ring protrusions, and the positioning protrusions can enter the inside of the sleeve through the grooves, Rotating the kit with the filter cartridge causes the positioning tabs to move over the loops, rendering the cartridge unremovable from the kit. The filter core structure of claim 12, wherein a top of the cover body extends toward the chamber to form a first rim, and a first rim is formed in the first rim, and the water inlet channel is located at the first Between the rim and the second rim, the water outlet is located in the second rim, and the second section of the head of the cartridge is embedded in the first rim, the head of the cartridge The third section of the portion is embedded in the second rim. The filter core structure of claim 11, wherein the first limiting portion is a limiting convex portion, and the second limiting portion is a limiting slot, and the limiting convex portion can be embedded in the limiting slot Internally, the kit is difficult to move or rotate relative to the cover. The filter core structure of claim 15, wherein the limiting protrusion is elongated and extends axially, and the limiting groove is also elongated and extends axially. The filter core structure of claim 16, wherein the width and height of the limiting protrusion are tapered toward the top of the cover, and the width and depth of the limiting slot are also toward the top of the cover. The direction is shrinking. The filter core structure of claim 11, wherein the outer diameter of the sleeve is slightly tapered toward the top of the cover. The filter core structure according to any one of claims 11 to 18, further comprising at least one fixing member, the fixing member fixing the cover body and the sleeve to each other, wherein the fixing member is a screw, and the cover body is disposed At least one hole, the kit is provided with at least one screw hole, and the screw passes through the hole and is screwed to the screw hole. A filter core structure according to any one of claims 1 to 18, wherein the kit is provided with at least one hollow portion that passes axially through the kit.