Compact filter element structure

Abstract

The utility model relates to a compact filter element structure which comprises a waterway plate, a filter element assembly and a locking hoop, and the waterway plate comprises a waterway pipe; the filter element assembly comprises a connecting end and a filter element main body; a filter element mounting groove with an opening in the outer end is formed in the waterway plate, and the two side walls of the filter element mounting groove are mounting groove side walls respectively; on the inner wall of the filter element mounting groove, one of the connecting ends is provided with a connecting pipe groove, and the other connecting end is provided with a connecting pipe inserted into the connecting pipe groove; the whole locking hoop is U-shaped, and the two ends of the locking hoop are hinged to the side wall of the mounting groove. The locking hoop abuts against the connecting end to limit the connecting pipe from being pulled out of the connecting pipe groove. The utility model has the effects that the sealing performance between the connecting pipe and the connecting pipe groove is ensured, the stress of the connecting pipe can be reduced, and the overall connecting strength of the waterway plate and the filter element assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements of water purifiers, and in particular to a compact filter element structure. Background Art

[0002] A traditional compact filter element structure includes a waterway plate and a filter element assembly; the filter element assembly includes a connecting end with a connecting pipe and a filter element body; the waterway plate is provided with a filter element mounting groove with an outer end opening, the waterway plate 1 is provided with a connecting pipe groove, and the connecting pipe is embedded in the connecting pipe groove to realize the connection between the waterway plate and the filter element assembly.

[0003] However, in the compact filter element structure, the filter element body of the filter element assembly protrudes from the bottom of the waterway plate in the height direction, and the connecting pipe needs to withstand the rotational force generated by the gravity of the filter element body, resulting in a low connection strength between the waterway plate and the filter element assembly; the connecting pipe, which is usually made of plastic, is also easy to bend, affecting the sealing and service life, etc.; and the single sealing ring mounted on the connecting pipe is subjected to greater force on the upper part and less force on the lower part, which also leads to poor sealing. After a period of use, the problem of the sealing ring will become prominent. Utility Model Content

[0004] One purpose of the utility model is to solve or alleviate the above technical problems.

[0005] The means adopted by the utility model are as follows: a compact filter element structure comprises a waterway plate, a filter element assembly and a locking hoop, the waterway plate comprises a waterway pipe; the filter element assembly comprises a connecting end and a filter element body; the waterway plate is provided with a filter element mounting groove with an outer end opening, and the two side walls of the filter element mounting groove are respectively the side walls of the mounting groove; the inner wall of the filter element mounting groove and one of the connecting ends are provided with a connecting pipe groove, and the other is provided with a connecting pipe inserted into the connecting pipe groove; the locking hoop is U-shaped as a whole and the two ends are respectively hinged to the side walls of the mounting groove; the locking hoop abuts against the connecting end to restrict the connecting pipe from being drawn out of the connecting pipe groove.

[0006] The utility model has the following effects: the sealing between the connecting pipe and the connecting pipe groove is ensured, the stress on the connecting pipe is reduced, and the overall connection strength between the waterway plate and the filter element assembly is ensured.

[0007] According to a further technical solution, a plug-in body is provided on the side wall of the installation groove along the connecting pipe, a plug-in frame is provided on the connecting end, the plug-in frame is provided with a plug-in groove along the connecting pipe, and the plug-in body is embedded in the plug-in groove.

[0008] The overall connection strength between the waterway plate and the filter element assembly can be improved.

[0009] According to a further technical solution, a convex groove is arranged on the outer side of the plug-in slot, and a convex rib embedded in the convex groove is arranged on the outer side of the plug-in body.

[0010] The overall connection strength between the waterway plate and the filter element assembly can be further improved.

[0011] According to a further technical solution, an anti-dropout body is provided at the top of the plug-in frame, an anti-dropout groove is provided on the inner side wall of the locking hoop, and the width of the anti-dropout body gradually increases from top to bottom; the anti-dropout body is embedded in the anti-dropout groove.

[0012] It can prevent the filter element assembly from being separated from the waterway plate, and can further improve the overall connection strength between the waterway plate and the filter element assembly.

[0013] According to a further technical solution, the outer side of the top end of the connection end is inclined; the end of the locking hoop extends downward to form a supporting body, and the supporting body is against the inner side wall of the plug-in frame.

[0014] It can further improve the overall connection strength between the waterway plate and the filter element assembly and facilitate the disassembly and assembly of the filter element assembly.

[0015] According to a further technical solution, one of the connecting end and the locking hoop is provided with a buckle groove, and the other is provided with a buckle that is snapped into the buckle groove.

[0016] It can ensure that the locking state of the locking hoop is stable.

[0017] According to a further technical solution, the locking hoop is further provided with an operating protrusion, which is located at the outer end of the locking hoop and has a gap between the operating protrusion and the filter element body.

[0018] Easy to disassemble and install the filter element assembly.

[0019] According to a further technical solution, the connecting pipe sleeve is provided with a plurality of elastic sealing rings.

[0020] According to a further technical solution, the connecting pipe extends outward to form a connecting pipe protrusion, and the connecting pipe protrusion fits with the inner wall of the connecting pipe groove.

[0021] While ensuring the bending strength of the connecting pipe, it is easy to disassemble and assemble the filter element assembly.

[0022] A further technical solution is that a hinge hole is provided on the side wall of the installation groove, and cylindrical hinge shafts are provided at both ends of the locking hoop, and the hinge shafts are respectively embedded in the hinge holes; a shaft anti-slip protrusion is provided on the side wall of the installation groove, and the shaft anti-slip protrusion is located on the inner side of one end of the locking hoop.

[0023] It is possible to prevent the hinge shaft from being disengaged from the hinge hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional exploded schematic diagram of a compact filter element structure of an embodiment of the utility model.

[0025] Figure 2 The side view of the compact filter element structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0026] Figure 3 The side view of the compact filter element structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0027] Figure 4 It is a top view schematic diagram of a compact filter element structure of an embodiment of the utility model.

[0028] Figure 5 It is a partial schematic diagram of a cross section SEC1; the connecting pipe 91 does not show the space that allows water to flow through.

[0029] Figure 6 It is a partial schematic diagram of section 2 SEC2.

[0030] Figure 7 This is a schematic diagram of detail 1 DTL1.

[0031] Designate the drawings in the specification Figure 1 Attached is the abstract.

[0032] Section 1 SEC1; Section 2 SEC2; Section 3 SEC3; Detail 1 DTL1; Waterway plate 1; Filter element mounting groove 11; Mounting groove side wall 111; Abutment body groove 112; Shaft anti-slip protrusion 114; Plug-in body 12; Protruding ridge 122; Hinge hole 17; Waterway pipe 18; Fixing ear 19; Filter element assembly 2; Connecting end 21; Plug-in frame 22; Plug-in groove 221; Protruding ridge groove 222; Anti-slip body 23; Filter element main body 29; Locking hoop 3; Abutment body 32; Anti-slip groove 33; Hinge shaft 37; Operating protrusion 38; Buckle 81; Buckle groove 82; Connecting pipe 91; Connecting pipe protrusion 911; Connecting pipe groove 92; Sealing ring 93. DETAILED DESCRIPTION

[0033] The specific implementation of the utility model will be described below with reference to the accompanying drawings of the specification.

[0034] As a specific embodiment, the compact filter element structure of the embodiment of the utility model includes a waterway plate 1, a filter element assembly 2 and a locking hoop 3, and the waterway plate 1 includes a waterway pipe 18. The waterway pipe 18 is used to connect the filter element assembly 2 to a water purifier or the like (not shown in the drawings), so that water can flow through the filter element assembly 2. Usually, the waterway plate 1 is also provided with a fixing ear 19, so that the waterway plate 1 or the like can be fixed to the water purifier or the like by screws or the like.

[0035] The filter element assembly 2 includes a connection end 21 and a filter element body 29. The filter element body 29 is usually provided with activated carbon, a filter membrane, etc., so as to filter the water passing therethrough and / or realize filtering-related functions such as water pressure control.

[0036] The waterway plate 1 is provided with a filter element installation groove 11 with an outer end opening, and two side walls of the filter element installation groove 11 are installation groove side walls 111 respectively.

[0037] One of the inner wall of the filter element installation groove 11 and the connection end 21 is provided with a connection pipe groove 92, and the other is provided with a connection pipe 91 inserted into the connection pipe groove 92. After the connection pipe 91 is inserted into the connection pipe groove 92, the filter element assembly 2 has a portion extending from the bottom of the waterway plate 1 beyond the waterway plate 1, such as Figure 3 As shown, the filter element body 29 of the filter element assembly 2 exceeds the waterway plate 1 from below the waterway plate 1 in the height direction, thereby realizing a compact filter element structure. It is easy to understand that the axis of the connecting pipe groove 92 or the connecting pipe 91 is usually substantially perpendicular to the filter element body 29. It is easy to understand that the connecting pipe groove 92 or the connecting pipe 91 is connected to the waterway pipe 18.

[0038] The locking hoop 3 is U-shaped as a whole and its two ends are respectively hinged to the side wall 111 of the mounting groove. For example, the side wall 111 of the mounting groove is provided with a hinge hole 17, and both ends of the locking hoop 3 are provided with a cylindrical hinge shaft 37, and the hinge shaft 37 is respectively embedded in the hinge hole 17, so that the two ends of the locking hoop 3 are respectively hinged to the side wall 111 of the mounting groove. The side wall 111 of the mounting groove is provided with a shaft anti-detachment protrusion 114, and the shaft anti-detachment protrusion 114 is located on the inner side of one end of the locking hoop 3. The shaft anti-detachment protrusion 114 is closer to the hinge hole 17. Referring to the following description, it can be known that when the locking hoop 3 rotates and locks the connecting end 21, the locking hoop 3 may undergo elastic deformation and cause the hinge shaft 37 to detach from the hinge hole 17. At this time, the shaft anti-detachment protrusion 114 abuts against the inner side of one end of the locking hoop 3, which can prevent the hinge shaft 37 from detaching from the hinge hole 17.

[0039] The locking hoop 3 abuts against the connecting end 21 to restrict the connecting pipe 91 from being withdrawn from the connecting pipe groove 92 .

[0040] The working principle is that when installing the filter element assembly 2, the locking hoop 3 is rotated from top to bottom so that the locking hoop 3 is abutted against the connecting end 21 and restricts the connecting pipe 91 from being pulled out from the connecting pipe groove 92. At this time, the locking hoop 3 is in a locked state. While ensuring the sealing between the connecting pipe 91 and the connecting pipe groove 92, the inner wall of the locking hoop 3 can also withstand the rotational force generated by the gravity of the filter element body 29 at the connecting end 21, thereby reducing the force on the connecting pipe 91 and ensuring the overall connection strength between the waterway plate 1 and the filter element assembly 2, thereby improving the service life and reliability.

[0041] When removing the filter element assembly 2 , the locking hoop 3 is rotated from bottom to top, and the locking hoop 3 makes room to allow the connecting pipe 91 to be pulled out from the connecting pipe groove 92 . At this time, the filter element assembly 2 can be removed from the waterway plate 1 more conveniently.

[0042] As one of the specific implementations, the side wall 111 of the installation groove is provided with a plug-in body 12 arranged along the connecting pipe 91, and the connecting end 21 is provided with a plug-in frame 22, and the plug-in frame 22 is provided with a plug-in groove 221 arranged along the connecting pipe 91, and the plug-in body 12 is embedded in the plug-in groove 221. The plug-in body 12 can withstand the rotational force generated by the gravity of the filter element main body 29 at the connecting end 21, thereby improving the overall connection strength between the waterway plate 1 and the filter element assembly 2.

[0043] As one of the specific implementations, a convex groove 222 is provided outside the plug groove 221, and a convex 122 embedded in the convex groove 222 is provided outside the plug body 12. The overall connection strength between the waterway plate 1 and the filter element assembly 2 can be further improved.

[0044] As one of the specific implementations, an anti-slip body 23 is provided at the top of the plug-in frame 22, and an anti-slip groove 33 is provided on the inner side wall of the locking hoop 3. The width of the anti-slip body 23 gradually increases from top to bottom (along the size of the connecting pipe 91), for example, the cross section of the anti-slip body 23 is a trapezoid or a triangle as a whole; the anti-slip body 23 is embedded in the anti-slip groove 33. It can prevent the filter element assembly 2 from being separated from the waterway plate 1, and can further improve the overall connection strength between the waterway plate 1 and the filter element assembly 2.

[0045] As one of the specific implementations, the outer side of the top end of the connection end 21 (i.e., the side of the connection end 21 away from the connection pipe groove 92) is inclined. In other words, Figure 1 As shown, the outer side of the top of the connection end 21 gradually moves away from the connection pipe groove 92 from top to bottom. The end of the locking hoop 3 (one of the two ends of the U-shape) extends downward to form a supporting body 32, and the supporting body 32 abuts against the inner side wall of the plug-in frame 22. The supporting body 32 abuts against the inner side wall of the plug-in frame 22, and the supporting body 32 bears the rotational force generated by the gravity of the filter element main body 29 of the connection end 21, which can further improve the overall connection strength between the waterway plate 1 and the filter element assembly 2. In the process of rotating the locking hoop 3 from top to bottom (in this process, the locking hoop 3 and / or its anti-detachment body 23 may undergo elastic deformation), the locking hoop 3 abuts against the outer side of the top of the connection end 21 so that the filter element assembly 2 is close to the waterway plate 1, which is convenient for the installation of the filter element assembly 2; in the process of rotating the locking hoop 3 from bottom to top, the supporting body 32 abuts against the plug-in frame 22 so that the filter element assembly 2 is away from the waterway plate 1, which is convenient for disassembling the filter element assembly 2, in other words, it is convenient for disassembling and assembling the filter element assembly 2.

[0046] As one of the specific embodiments, one of the connection end 21 and the locking hoop 3 is provided with a buckle groove 82, and the other is provided with a buckle 81 that is engaged with the buckle groove 82. This ensures that the locking state of the locking hoop 3 is stable. The locking hoop 3 is also provided with an operating protrusion 38, which is located at the outer end of the locking hoop 3 and has a gap with the filter element body 29. The locking hoop 3 can be easily moved upward from the gap between the operating protrusion 38 and the filter element body 29, so as to facilitate the disassembly and assembly of the filter element assembly 2.

[0047] As one of the specific implementations, the connecting pipe 91 is sleeved with a plurality of elastic sealing rings 93 .

[0048] As one of the specific implementations, the connecting tube 91 extends outward to form a connecting tube protrusion 911, and the connecting tube protrusion 911 fits against the inner wall of the connecting tube groove 92. While ensuring the anti-bending strength of the connecting tube 91 (i.e., resisting the aforementioned rotational force generated by the gravity of the filter element main body 29), the connecting tube 91 is easier to insert and withdraw from the connecting tube groove 92, making it easier to disassemble and assemble the filter element assembly 2.

[0049] As used in this utility model, the terms: first, second, etc., do not indicate any order, quantity or importance, but are only used for distinction.

[0050] As used in the present invention, the terms "a", "an", etc. do not indicate a limitation of quantity, but rather indicate the presence of at least one of the referenced object.

[0051] For example, the terms indicating orientation or position used in the present invention, such as top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0052] As used in the present invention, terms such as approximately, overall, approximately, and similar are limiting terms that indicate that a feature exists but a certain deviation is allowed. The amount of the certain deviation allowed may vary depending on the specific context; for example, the specific context that may depend on the deviation of a dimension includes but is not limited to the relevant standards of dimensional tolerance.

Claims

1. A compact filter element structure, comprising a waterway plate (1), a filter element assembly (2) and a locking hoop (3), wherein the waterway plate (1) comprises a waterway pipe (18); the filter element assembly (2) comprises a connecting end (21) and a filter element body (29); the waterway plate (1) is provided with a filter element installation groove (11) with an outer end opening, and two side walls of the filter element installation groove (11) are respectively installation groove side walls (111); an inner wall of the filter element installation groove (11) and one of the connecting ends (21) are provided with a connecting pipe groove (92), and the other is provided with a connecting pipe (91) inserted into the connecting pipe groove (92); Its characteristics are: The locking hoop (3) is U-shaped as a whole and its two ends are respectively hinged to the side walls (111) of the installation groove; the locking hoop (3) abuts against the connecting end (21) to restrict the connecting pipe (91) from being drawn out from the connecting pipe groove (92).

2. The compact filter element structure according to claim 1 is characterized in that: The side wall (111) of the installation groove is provided with a plug-in body (12) arranged along the connecting pipe (91), the connecting end (21) is provided with a plug-in frame (22), the plug-in frame (22) is provided with a plug-in groove (221) arranged along the connecting pipe (91), and the plug-in body (12) is embedded in the plug-in groove (221).

3. The compact filter element structure according to claim 2, characterized in that: A convex groove (222) is arranged on the outside of the plug-in groove (221), and a convex ridge (122) embedded in the convex groove (222) is arranged on the outside of the plug-in body (12).

4. The compact filter element structure according to claim 2 is characterized in that the plug The top of the frame (22) is provided with an anti-slip body (23), the inner wall of the locking hoop (3) is provided with an anti-slip groove (33), and the width of the anti-slip body (23) gradually increases from top to bottom; the anti-slip body (23) is embedded in the anti-slip groove (33).

5. The compact filter element structure according to claim 2, characterized in that: The top outer side of the connecting end (21) is inclined; the end of the locking hoop (3) extends downward to form a supporting body (32), and the supporting body (32) is against the inner side wall of the plug-in frame (22).

6. The compact filter element structure according to claim 5, characterized in that the connection end (21), one of the locking hoops (3) is provided with a buckle groove (82), and the other is provided with a buckle (81) that is buckled into the buckle groove (82).

7. The compact filter element structure according to claim 6, characterized in that: The locking hoop (3) is also provided with an operating protrusion (38), which is located at the outer end of the locking hoop (3) and has a gap with the filter element body (29).

8. The compact filter element structure according to claim 1, characterized in that: The connecting pipe (91) is sleeved with a plurality of elastic sealing rings (93).

9. The compact filter element structure according to claim 1, characterized in that: The connecting pipe (91) extends outward to form a connecting pipe protrusion (911), and the connecting pipe protrusion (911) is in contact with the inner wall of the connecting pipe groove (92).

10. The compact filter element structure according to claim 1, characterized in that: The side wall (111) of the mounting groove is provided with a hinge hole (17), and both ends of the locking hoop (3) are provided with cylindrical hinge shafts (37), and the hinge shafts (37) are respectively embedded in the hinge holes (17); the side wall (111) of the mounting groove is provided with a shaft anti-slip protrusion (114), and the shaft anti-slip protrusion (114) is located on the inner side of one end of the locking hoop (3).

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