TWI692372B - Key structure and filter device therewith - Google Patents

Abstract

A key structure includes a main body and at least one engaging component connected to the main body for engaging with a cylinder. The main body extends along a horizontal direction and includes a combining portion. The combining portion is detachably combined with a neck portion of an end cover of a filter cartridge. Two engaging recesses are formed on a lateral wall of the neck portion. An engaging protrusion protrudes from each of two sides of the combining portion corresponding to the two engaging recesses. The two engaging protrusions engage with the two engaging recesses when the combining portion is combined the neck portion. Therefore, the filter cartridge can be installed in the cylinder easily by the key structure.

Description

Key part structure and filtering device with the aforementioned key part structure

The invention relates to a component of a filtering device, in particular to a key part structure that can help a user to disassemble and assemble a filter element and a filter device having the aforementioned key part structure.

With the development of filter technology and filter materials, filter devices are widely used in different fields. Most common filtering devices include a filter shell and a filter core. The filter shell has a water inlet and a water outlet for connecting the pipeline. The filter core is disposed in the filter shell to adsorb specific substances in the process fluid, wastewater or drinking water, and then achieve filtration. effect. However, when the pores of the filter element are gradually blocked with the increase of use time, it will not only cause the adsorption effect of the filter element to become worse, that is, the filtration effect is getting worse, the pressure difference caused by flowing through the filter device will also become more and more In order to maintain the filtering effect and avoid excessive pressure difference, the user must regularly replace the filter element. In addition, for users, contact with the substances remaining on the filter element when replacing the filter element also poses a potential risk. Therefore, how to provide a convenient and worry-free way to replace the filter element has become one of the topics that the industry wants to improve.

Therefore, an object of the present invention is to provide a key portion structure that can help users disassemble and assemble the filter element and a filter device having the aforementioned key portion structure to solve the above-mentioned problems.

In order to achieve the above object, the present invention discloses a key for mounting a filter element to a cylinder Part structure, which includes a key part body and at least one engaging piece, the key part system extends in a horizontal direction, the key part body includes a coupling part, and the coupling part is detachably coupled to an end cover of the filter element A neck, two engaging recesses are formed on one side wall of the neck, and two engaging recesses are formed on the two sides of the engaging portion relative to the two engaging recesses respectively, when the engaging portion is engaged with the When in the neck, the two engaging protrusions are respectively engaged with the two engaging depressions, and the at least one engaging member is connected to the key body and used to be engaged with the barrel.

According to one embodiment of the present invention, the cross section of the neck portion and the cross section of the joint portion correspond to each other.

According to one embodiment of the invention, the cross-section of the neck and the cross-section of the joint portion do not correspond to each other.

According to one embodiment of the present invention, the key portion structure further includes at least one fixing ear connected to the key portion body, and at least one fixing ear is formed with a contact portion extending along the horizontal direction when the When at least one engaging member is engaged with the cylinder, the abutting portion abuts a flange on one end surface of the cylinder.

According to one embodiment of the present invention, the key portion structure further includes at least one operation rib connected to the key portion body, and the key portion body can rotate when the at least one operation rib is pushed.

According to one embodiment of the present invention, the key portion structure further includes at least one structural reinforcement rib, which is disposed on the key portion body and used to strengthen the structural strength of the key portion structure.

According to one embodiment of the present invention, the at least one engaging member is a spring arm which is connected to the key body and extends downward in a vertical direction perpendicular to the horizontal direction, and one end of the spring arm is formed with a A hook portion, the hook portion is used to be engaged with a positioning groove on the cylinder body;

In order to achieve the above object, the present invention further discloses a filter device, which includes a filter housing, a filter element and a key structure, the filter housing includes a cover body and a cylinder body, the cover body is detachably coupled to the cylinder body , The cover body and the interior of the cylinder body together form an accommodating space, the filter element is disposed in the accommodating space, the filter element includes an end cover and a filter element body, the end cover is mounted on the filter element body, and the end cover A neck portion is formed on the key portion structure for mounting the filter element on the barrel. The key portion structure includes a key portion body and at least one engaging member. The key portion body extends in a horizontal direction, the at least A keying element is connected to the key body and used to be engaged with the cylinder. The key body includes a joint portion, the joint portion is detachably coupled to the neck, and two sidewalls are formed on one side wall of the neck An engaging depression, two engaging protrusions respectively protrude from the two engaging depressions on opposite sides of the engaging depression, and when the engaging portion is engaged with the neck, the two engaging protrusions engage with The two engaging recesses.

According to one embodiment of the present invention, the key structure further includes at least one fixing ear, the at least one fixing ear is connected to the key body, and the at least one fixing ear is formed with an abutment extending along the horizontal direction A flange is formed on one end surface of the cylinder body combined with the cover body, and when the at least one engaging member is engaged with the cylinder body, the abutment portion abuts the flange.

According to one embodiment of the present invention, the at least one engaging member is a spring arm which is connected to the key body and extends downward in a vertical direction perpendicular to the horizontal direction, and one end of the spring arm is formed with a The hook portion has a positioning groove on the barrel, and the hook portion is used to be engaged with the positioning groove.

According to one embodiment of the present invention, the barrel includes at least one guiding structure, the at least one guiding structure is disposed on at least one side of the positioning groove to guide the hook portion into the positioning groove.

In summary, the key part structure of the present invention uses the coupling part to be coupled to the filter element and the hook portion to be engaged with the positioning groove on the cylinder body. Therefore, when the user wants to install the filter element on the cylinder body, as long as Combine the two engaging protrusions of the joint part of the key part structure with the two engaging recesses of the neck of the filter element, and then operate the key part structure to make the hook part engage with the positioning groove on the cylinder body, which can be easily completed The installation of the filter element, moreover, the filter element and the cylinder body can be removed together when the cartridge body is removed from the cover body, so the space required for replacing the filter element can be saved, and when the user wants to remove the filter element from the cartridge body, As long as the key portion structure is operated to disengage the hook portion from the positioning groove on the barrel, the filter element and the key portion structure can be easily removed from the barrel together, so the key portion structure of the present invention has a simple structure, It saves the space required for replacing the filter element and has the advantages of convenient operation. In addition, in the above disassembly process, since the user only contacts the key portion structure without directly contacting the filter element, the present invention can effectively reduce the potential risk of contacting the substances remaining on the filter element during the disassembly process.

1: filter device

11: filter housing

111: cover

1111: Water inlet

1112: Outlet

1113: Connection

112: cylinder

1121: Locating groove

1122: Guide structure

1123: end face

1124: flange

113: accommodating space

12: filter element

121: End cap

1211: Neck

1212: Joint

122: filter body

123: Engagement depression

13: Key structure

131: Key body

1311: Joint

1312: Engagement protrusion

132: spring arm

1321: Card hook

133: fixed ear

1331: abutment

134: Operating rib

135: Structural reinforcement rib

H: horizontal direction

V: vertical direction

FIG. 1 is a schematic view of the appearance of a filtering device according to an embodiment of the invention.

Fig. 2 and Fig. 3 are exploded views of the filter device of the embodiment of the present invention at different viewing angles.

Fig. 4 is a schematic diagram of a cylinder according to an embodiment of the invention.

Figures 5 and 6 are schematic views of the assembly of the key portion structure and the filter element from different perspectives according to an embodiment of the present invention.

7 to 9 are schematic diagrams of the filter device according to the embodiment of the present invention in different views from the first state.

10 to 12 are schematic diagrams of the filter device according to an embodiment of the present invention in a second state from different perspectives.

The direction words mentioned in the following embodiments, for example: up, down, left, right, front or back, etc., are only for the directions referring to the attached drawings. Therefore, the directional terminology is used to illustrate rather than limit the invention.

Please refer to FIG. 1 to FIG. 3, FIG. 1 is a schematic diagram of the appearance of a filter device 1 according to an embodiment of the present invention, and FIG. 2 and FIG. 3 are exploded views of components of the filter device 1 according to an embodiment of the present invention at different viewing angles. As shown in FIGS. 1 to 3, the filter device 1 includes a filter housing 11, a filter element 12 and a key structure 13, the filter housing 11 includes a cover 111 and a barrel 112, the cover 111 and the barrel 112 are combined with each other in a detachable manner. The inside of the cover 111 and the cylinder 112 together form an accommodating space 113. The filter element 12 is installed in the cylinder 112 by the key structure 13 and is located in the accommodating space 113. The cover 111 includes a water inlet 1111, a water outlet 1112, and a connecting portion 1113. The water inlet 1111 communicates with the accommodating space 113 and is used to connect an upstream pipeline (not shown in the figure). The connecting portion 1113 is located in the accommodating space 113 And is used to connect the filter element 12, the water outlet 1112 communicates with the connecting portion 1113 and is used to connect the downstream pipeline (not shown in the figure), so that the user only needs to connect the upstream pipeline and the downstream pipeline to the water inlet 1111 of the cover 111 respectively And the water outlet 1112, the fluid can enter the accommodating space 113 from the upstream line through the water inlet 1111, and then filter through the filter element 12, and finally flow out from the filter element 12 and flow to the downstream line through the connection portion 1113 and the water outlet 1112 to achieve The purpose of filtering fluids.

Specifically, please refer to FIGS. 2 to 6, FIG. 4 is a schematic diagram of the cylinder 112 according to the embodiment of the present invention, and FIGS. 5 and 6 are views of the key portion structure 13 and the filter element 12 in different perspectives according to the embodiment of the present invention. Assembly diagram. As shown in FIGS. 2 to 6, the key structure 13 includes a key body 131, an engaging member, two fixing ears 133, two operating ribs 134, and eight structural reinforcement ribs 135. The key body 131 is along a level Extending in the direction H, the key body 131 includes a coupling portion 1311 for coupling the filter element 12, the filter element 12 includes an end cover 121 and a filter element body 122, the end cover 121 is mounted on the filter element body 122, and a neck is formed on the end cover 121 1211 and an engaging portion 1212. The engaging portion 1212 is used to connect to the connecting portion 1113. The engaging portion 1311 is detachably coupled to the neck portion 1211. Two engaging recesses 123 are formed on one side wall of the neck 1211, and two engaging recesses 123 on the two sides of the engaging portion 1311 relative to the neck 1211 are respectively protruded to form an engaging protrusion 1312, when the engaging portion 1311 is engaged When the neck 1211 is formed, the two engaging protrusions 1312 are engaged with the two engaging recesses 123, so that the key structure 13 and the filter element 12 can be firmly engaged without being easily loosened. In this embodiment, the cross-section of the neck 1211 in the horizontal direction H and the cross-section of the coupling portion 1311 in the horizontal direction H can correspond to each other and are both gourd-shaped, meaning that the cross-section of the coupling portion 1311 in the horizontal direction H can appear The structural design of the closed end is wider and the open end is retracted, so the joint 1311 can tightly clamp the neck 1211, but the invention is not limited to this, the cross section of the neck 1211 along the horizontal direction H and the joint 1311 The cross sections along the horizontal direction H may not correspond to each other. For example, in another embodiment, the cross section of the neck 1211 in the horizontal direction H may be dog bone-shaped, and the cross section of the coupling portion 1311 in the horizontal direction H may be gourd-shaped.

Furthermore, the engaging member is connected to the key body 131 and used for engaging with the cylinder 112. In this embodiment, the engaging member may preferably be an elastic arm 132. Specifically, the elastic arm 132 is connected to the key body 131 and extends downward in a vertical direction V perpendicular to the horizontal direction H. A hook portion 1321 is formed at one end of the elastic arm 132 and formed on the inner wall of the barrel 112 There is a positioning groove 1121. When the key part structure 13 is combined with the filter element 12 and placed into the barrel 112 together, the hook portion 1321 is used to extend into the barrel 112 and engage with the positioning groove 1121 to realize the key part Positioning installation between the structure 13 and the cylinder 112. In this embodiment, the barrel 112 may preferably include two guide structures 1122, which are disposed on both sides of the positioning groove 1121 to guide the hook portion 1321 into or out of the positioning groove 1121. The two fixing ears 133 are connected to the key body 131 and extend downward in the vertical direction V. The two fixing ears 133 are respectively located on both sides of the elastic arm 132. Each fixing ear 133 is formed with a contact portion 1331 extending in the horizontal direction H, when the hook portion 1321 is engaged with the positioning When the groove 1121 is in contact, the abutting portion 1331 abuts a flange 1124 on the end surface 1123 of the cover 111 of the cylinder body 112, the hook portion 1321 of the key portion structure 13 and the two abutting portions 1331 may A three-end support is formed to enhance the installation stability between the key structure 13 and the cylinder 112. However, the number and positioning positions of the positioning grooves 1121, the elastic arms 132, the hook portions 1321, and the fixing ears 133 of the present invention are not limited to those shown in the drawings of the embodiments of the present invention, and their ends depend on actual needs.

In addition, the two operating ribs 134 are connected to the key body 131 and extend upward in the vertical direction V. The user can operate the two operating ribs 134 to drive the key body 131 to rotate, thereby driving the hook portion 1321 and the positioning groove 1121 to rotate the card Engagement or disengagement, thereby achieving the installation or removal of the key structure 13. The eight structural reinforcement ribs 135 are respectively provided with the key body 131, the connection between the key body 131 and the elastic arm 132, and the connection between the key body 131 and each fixing ear 133 to strengthen the overall structural strength of the key structure 13, but The number, size, and installation positions of the structural reinforcement ribs 135 are not limited to those shown in the drawings of the embodiments of the present invention, and their ends depend on structural strength requirements.

Please refer to FIG. 2 to FIG. 3 and FIG. 7 to FIG. 12, FIG. 7 to FIG. 9 are schematic diagrams of different viewing angles of the filter device 1 in the first state according to the embodiment of the present invention, and FIG. 10 to FIG. 12 It is a schematic diagram of the filter device 1 according to an embodiment of the present invention in different angles in a second state. As shown in FIGS. 2 and 3, when the user wants to assemble the filter device 1, the cylinder 112 and the cover 111 can be separated from each other, and then the coupling portion 1311 of the key body 131 can be coupled to the neck of the filter element 12 Part 1211 to complete the engagement of the key part structure 13 and the filter element 12. Next, as shown in FIG. 7, the user can put the combination of the key portion structure 13 and the filter element 12 into the cylinder 112 until the abutment portion 1331 abuts the flange 1124 on the end surface 1123 of the cylinder 112. It is worth noting that during the above placement of the filter element 12, the inner wall of the cylinder 112 and the hook portion 1321 interfere with each other, so that the elastic arm 132 is elastically deformed and moves toward the inside of the cylinder 112. In addition, when the abutting portion 1331 abuts the flange 1124, the hook portion 1321 and the positioning groove 1121 are at the same height. At this time, if the hook portion 1321 is located relative to the positioning groove 1121 If the position shown in FIG. 9 is misaligned with the positioning groove 1121, the user can operate the two operating ribs 134 to drive the key structure 13 and the filter element 12 to rotate relative to the cylinder 112 from the position shown in FIG. 8 to The position shown in FIG. 11 enables the hook portion 1321 to align with the positioning groove 1121 over the guide structure 1122, thereby elastically reset the elastically deformed elastic arm 132 to drive the hook portion 1321 to engage with the positioning groove 1121, as shown in FIG. 12, to achieve the purpose of mounting the filter element 12 to the cylinder 112 by the key portion structure 13. Finally, the user can complete the assembly of the filter device 1 as long as the cylindrical body 112 with the filter element 12 and the cover 111 are combined with each other, but the invention is not limited to this. For example, when the abutting portion 1331 abuts on the flange 1124, if the hook portion 1321 just aligns with the positioning groove 1121, the user does not need to operate the operation rib 134 to drive the key body 131 and connect to the key body 131 The hook portion 1321 rotates, and the elastically deformed elastic arm 132 can be elastically reset to drive the hook portion 1321 to be engaged with the positioning groove 1121, so as to realize the positioning and installation between the key portion structure 13 and the barrel 112.

When the filter device 1 is used for a period of time and the user wants to replace the filter element 12, since the filter element 12 is installed on the barrel 112 by the key structure 13, the user directly removes the barrel 112 from the cover 111, at this time , The filter element 12 will be removed together with the cylinder body 112, and will not be left on the cover body 111, so in the process of separating the cylinder body 112 and the cover body 111, the cylinder body 112 does not need to be disassembled until the entire filter element 12 is exposed Therefore, the space required for replacing the filter element 12 can be saved. Then, the user can operate the two operation ribs 134 to drive the key portion structure 13 and the filter element 12 to rotate relative to the cylinder 112 together, so that the hook portion 1321 can pass the guide structure 1122 and disengage from the positioning groove 1121. During the disengagement of the hook portion 1321 and the positioning groove 1121, the elastic arm 132 can be elastically deformed due to the interference of the hook portion 1321 and the inner wall of the barrel 112, so when the hook portion 1321 and the positioning groove 1121 are disengaged After being engaged, the user can smoothly detach the key structure 13 together with the filter element 12 from the barrel 112. It is worth noting that during the above disassembly process, the user will not directly contact the filter element 12, so the present invention can effectively reduce the potential risk of contact with the substances remaining on the filter element 12 during the disassembly process. In the process of replacing the filter element 12, the user can replace the key structure 13 at the same time, In other words, the user does not need to disassemble the old key structure 13 from the old filter element 12, but directly combines the new key structure 13 with the new filter element 12, so as to reduce contact with the filter element 12 during disassembly Or the potential risk of the substance on the key structure 13.

Compared with the prior art, the key portion structure of the present invention uses the coupling portion to be coupled to the filter element and the hook portion to be engaged with the positioning groove on the barrel, so when the user wants to install the filter element on the barrel, As long as the two engaging protrusions of the coupling part of the key part structure are combined with the two engaging depressions of the neck of the filter element, and then operate the key part structure to engage the hook part with the positioning groove on the cylinder, it can be easily Complete the installation of the filter element. Furthermore, when the cartridge body is removed from the cover body, the filter element and the cartridge body can be removed together, so the space required for replacing the filter element can be saved, and when the user wants to remove the filter element from the cartridge body As long as the key portion structure is operated to disengage the hook portion from the positioning groove on the barrel, the filter element and the key portion structure can be easily removed from the barrel together, so the key portion structure of the present invention has a simple structure , Save the space required to replace the filter element, the advantages of easy operation. In addition, in the above disassembly process, since the user only contacts the key portion structure without directly contacting the filter element, the present invention can effectively reduce the potential risk of contacting the substances remaining on the filter element during the disassembly process.

The above are only the preferred embodiments of the present invention, and all changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

1: filter device

11: filter housing

111: cover

1111: Water inlet

1112: Outlet

112: cylinder

1121: Locating groove

1122: Guide structure

1123: end face

1124: flange

113: accommodating space

12: filter element

121: End cap

1211: Neck

1212: Joint

122: filter body

123: Engagement depression

13: Key structure

131: Key body

1311: Joint

1312: Engagement protrusion

132: spring arm

1321: Card hook

133: fixed ear

1331: abutment

134: Operating rib

135: Structural reinforcement rib

H: horizontal direction

V: vertical direction

Claims (11)

A key part structure for mounting a filter element in a cylinder body includes: a key part body extending in a horizontal direction; the key part body includes a coupling part which is detachably coupled to A neck of an end cap of the filter element, two engaging recesses are formed on a side wall of the neck, and two engaging recesses on the two sides of the joint portion opposite to the two engaging recesses respectively form an engaging protrusion. When the coupling part is coupled to the neck, the two engaging protrusions are respectively engaged with the two engaging depressions; and at least one engaging member is connected to the key body and used to be engaged with the cylinder . The key part structure according to claim 1, further comprising at least one fixing ear connected to the key part body, a contact portion extending along the horizontal direction is formed on the at least one fixing ear When at least one engaging member is engaged with the cylinder, the abutting portion abuts a flange on one end surface of the cylinder. As described in claim 1, the key part structure further includes at least one operation rib connected to the key part body. When the at least one operation rib is pushed, the key part body can be driven to rotate. The key part structure according to claim 1, further comprising at least one structural reinforcement rib, which is disposed on the key part body and used to strengthen the structural strength of the key part structure. The key part structure according to any one of claims 1 to 4, wherein the at least one engaging member is a spring arm which is connected to the key part body and oriented along a vertical direction perpendicular to the horizontal direction Extending downward, a hook portion is formed at one end of the spring arm, and the hook portion is used to be engaged with a positioning groove on the cylinder body. A filter device includes: a filter housing including a cover body and a cylinder body, the cover body is detachably coupled to the cylinder body, the cover body and the interior of the cylinder body together form an accommodating space; A filter element, which is arranged in the accommodating space, the filter element includes an end cover and a filter body, the end cover is installed on the filter body, and a neck is formed on the end cover; and a key portion structure, which is used To install the filter element in the cylinder, the key part structure includes a key part body and at least one engaging member, the key part body extends in a horizontal direction, and the at least one engaging member is connected to the key part body and used for The key body includes a coupling portion, which is detachably coupled to the neck, and two engaging recesses are formed on one side wall of the neck, and the coupling portion is opposite to the two An engaging protrusion is formed on both sides of the engaging recess, and when the connecting portion is engaged with the neck, the two engaging protrusions are engaged with the two engaging recesses, respectively. The filtering device according to claim 6, wherein the key part structure further includes at least one fixing ear, the at least one fixing ear is connected to the key part body, and the at least one fixing ear is formed to extend in the horizontal direction A contact portion, a flange formed on an end surface of the cylinder body combined with the cover body, when the at least one engaging member is engaged with the cylinder body, the contact portion abuts the flange. The filtering device according to claim 6, wherein the key part structure further includes at least one operation rib connected to the key part body, and the key part body can be rotated when the at least one operation rib is pushed. The filtering device according to claim 8, wherein the key part structure further includes at least one structure plus A rib is provided on the body of the key part and used to strengthen the structural strength of the key part structure. The filter device according to any one of claims 6 to 9, wherein the at least one engaging member is a spring arm, which is connected to the key body and downward in a vertical direction perpendicular to the horizontal direction In an extension, a hook portion is formed at one end of the spring arm, and a positioning groove is formed on the cylinder body, and the hook portion is used to be engaged with the positioning groove. The filtering device according to claim 10, wherein the barrel includes at least one guiding structure, the at least one guiding structure is disposed on at least one side of the positioning groove to guide the hook portion into the positioning Groove.

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