Filter element assembly based on spring bolt type locking mechanism

Abstract

The utility model discloses a filter element assembly based on a spring bolt type locking mechanism. The filter element assembly comprises a filter element seat, a filter element sleeved on the filter element seat and a double-side locking mechanism arranged between the filter element seat and the filter element to realize connection between the filter element seat and the filter element, the locking mechanism comprises a coaxial cylinder formed by splicing two semi-cylinders, one semi-cylinder is rotationally arranged on the filter element seat, the other semi-cylinder is rotationally arranged on the filter element, the semi-cylinder arranged on the filter element seat is connected with a connecting shaft, and the connecting shaft penetrates through the filter element seat to be connected with a push rod assembly; the splicing surfaces of the two semi-cylinders are positioned at different positions through the rotation of the push rod assembly, so that the filter element and the filter element seat are locked or unlocked. According to the filter element assembly, the filter element can be mounted and dismounted, and the mounting and dismounting convenience of the filter element assembly is improved by means of the spring bolt type locking mechanism.

Description

Technical Field

[0001] The utility model belongs to the field of filter element assemblies, and particularly relates to a filter element assembly based on a tongue-locking mechanism. Background Art

[0002] In order to improve the quality of domestic water, many families are equipped with water purifiers. A water purifier generally includes a filter element assembly and a machine body. The filter element assembly is installed in the machine body and is docked with a water circuit board in the machine body, so that the filter element assembly can normally perform the filtering function. The filtering capacity of the filter element assembly will decrease with the increase of the use time. Therefore, it generally needs to be replaced after being used for a period of time. The simplicity and convenience of the filter element fixing method have become one of the important considerations for users when purchasing a water purifier. Based on this, generally, the filter element assembly and the machine body are detachably connected.

[0003] The existing filter element installation method of a water purifier can adopt a buckle structure, for example. That is, by means of operations such as pulling, pressing or pinching, etc., to disengage the buckle from the water purifier and take out the filter element from the water purifier. However, this structure is sometimes restricted by the installation scenario of the water purifier and is not convenient for operation; and the internal linkage structure of the buckle is complex, and a relatively large amount of force is required for operation, and problems such as jamming are likely to occur inside.

[0004] Based on this, there is an urgent need for a new type of filter element assembly to facilitate the installation and disassembly of the filter element and the filter element seat. Summary of the Invention

[0005] Object of the Invention: The technical problem to be solved by the utility model is to provide a filter element assembly capable of installing and disassembling a filter element. The filter element assembly improves the convenience of installation and disassembly by means of a tongue-locking mechanism.

[0006] Technical Solution: The filter element assembly of the utility model based on a tongue-locking mechanism includes a filter element seat, a filter element sleeved on the filter element seat, and a bilateral locking mechanism arranged between the filter element seat and the filter element to realize the connection between the two;

[0007] The locking mechanism includes a coaxial cylinder formed by splicing two semi-cylinders. One of the semi-cylinders is rotatably arranged on the filter element seat, and the other semi-cylinder is rotatably arranged on the filter element. A connecting shaft is connected to the semi-cylinder arranged on the filter element seat. The connecting shaft penetrates through the filter element seat and is connected to a push rod assembly. By rotating the push rod assembly, the splicing surface of the two semi-cylinders is located at different positions, so as to lock or unlock the filter element and the filter element seat.

[0008] Furthermore, a groove for accommodating the semi-cylinder on the filter element seat is opened on the filter element of the filter element assembly. An inwardly extending semi-cylinder groove matching with the semi-cylinder on the filter element is opened at the end face of the groove.

[0009] Furthermore, when the connecting end faces of the two semi-cylinders of the filter element assembly are joined together and in a vertical state, they are located in the same vertical plane as the end face of the groove where the semi-cylindrical groove is located.

[0010] Furthermore, the semi-cylindrical groove of the filter element assembly is provided with a protrusion for limiting the rotation angle of the semi-cylinder, and a through-hole is correspondingly provided on the semi-cylinder for mating with it.

[0011] Furthermore, the filter element seat of the filter element assembly is provided with a semi-cylindrical groove for accommodating the semi-cylinder thereon, and the filter element seat is also provided with a through-hole for the connecting shaft to pass through.

[0012] Furthermore, the semi-cylindrical groove of the filter element seat of the filter element assembly is provided with a protrusion for limiting the rotation angle of the semi-cylinder, and a through-hole is correspondingly provided on the semi-cylinder for mating with it.

[0013] Furthermore, the push rod assembly of the filter element assembly includes a connecting rod respectively connected to the connecting shaft, and a push rod connected to the connecting rod and pushing it to rotate.

[0014] Furthermore, the push rod assembly of the filter element assembly further includes a vertical rod arranged along the axial direction of the filter element on the filter element, a rotating rod rotatably arranged at one end on the vertical rod and connected to the push rod at the other end.

[0015] Furthermore, the filter element assembly further includes a tension spring for limiting the locked state of the filter element and the filter element seat, one end of the tension spring is connected to the push rod assembly, and the other end is connected to the filter element seat.

[0016] Furthermore, a connecting hole for connecting the tension spring is provided on the connecting rod of the push rod assembly of the filter element assembly, and a fixing rod for connecting the tension spring is extended on the filter element seat.

[0017] Beneficial effects: Compared with the prior art, the advantages of the present utility model are as follows: The filter element assembly is based on a tongue-and-groove locking mechanism, that is, by respectively arranging two semi-cylinders on the filter element seat and the filter element, and the two semi-cylinders are joined together to form a coaxial cylinder, and the contact surface of the two joined together becomes the torque-bearing end face. Under the rotation of the push rod assembly connected to one of the semi-cylinders, the other semi-cylinder is driven to rotate, thereby realizing the locking or disassembly between the filter element and the filter element seat, so as to conveniently install and disassemble the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the filter element assembly of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the filter element seat of the present utility model;

[0020] Figure 3 is Figure 2 the structural diagram after removing one semi-cylinder in

[0021] Figure 4 This is a schematic structural diagram of the filter element of the present utility model;

[0022] Figure 5 is Figure 4 a schematic structural diagram of removing a semi-cylinder in

[0023] Figure 6 This is a schematic structural diagram of the locking component of the filter element assembly of the present utility model in the unlocked state;

[0024] Figure 7 This is a schematic structural diagram of the locking component of the filter element assembly of the present utility model in the locked state. Specific embodiments

[0025] The technical solution of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] As Figure 1 shown, the filter element assembly of the present utility model includes a filter element seat 1 connected to a water pipe or a water circuit board, a filter element 2 sleeved on the filter element seat 1 and capable of realizing a portable detachable connection, and a locking component for locking or disassembling the filter element 2 and the filter element seat 1 by means of a locking tongue connection. The locking component includes a coaxial cylinder formed by splicing two semi-cylinders 3, and a push rod assembly for driving the coaxial cylinder to rotate. That is, based on the thrust of the push rod assembly, the rotation of the coaxial cylinder is driven, so that the splicing surfaces of the two semi-cylinders 3 are located at different positions, realizing the locking or unlocking of the filter element 2 and the filter element seat 1.

[0027] Specifically, as Figure 2 and Figure 3 shown, one of the semi-cylinders 3 of the coaxial cylinder is arranged on the filter element seat 1. Correspondingly, a semi-cylindrical groove 6 matching the semi-cylinder 3 is formed on the filter element seat 1 to realize the rotation of the semi-cylinder 3 in the semi-cylindrical groove 6. A connecting shaft 4 is connected to the outer end surface of the semi-cylinder 3 on the filter element seat 1. The connecting shaft 4 penetrates the filter element seat 1 and is connected to the push rod assembly. Correspondingly, a through hole 8 for penetrating the connecting shaft 4 is provided on the filter element seat 1. A convex block 7 for limiting the rotation angle of the semi-cylinder 3 thereon is connected to the semi-cylindrical groove 6 of the filter element seat 1, and an arc-shaped through hole matching the convex block 7 for limiting the rotation angle is formed on the semi-cylindrical groove 6 of the filter element seat 1. That is, through the cooperation of the convex block 7 and the through hole, the rotation angle of the semi-cylinder 3 is limited within a set range. The specific range angle is not limited in the present invention and can be designed according to needs.

[0028] The other semi-cylinder 3 of the coaxial cylinder is rotatably connected to the filter element 2 through a connecting bolt 15, and the semi-cylinder 3 can rotate around the connecting bolt 15. As Figure 4 and Figure 5As shown, it is located at the connection between the filter element 2 and the filter element seat 1. A groove 5 for accommodating the semi - circumference on the filter element seat 1 is provided on the filter element 2, and with the end face of the groove 5 as the edge end face, a semi - cylindrical groove 6 for accommodating the semi - cylinder 3 on the filter element 2 extends inward, so that the semi - cylinder 3 on the filter element 2 can rotate within the semi - cylindrical groove 6. Similarly, in order to further limit its rotation angle, a convex block 7 can be arranged in the semi - cylindrical groove 6 of the filter element 2, and an arc - shaped through - hole structure matching with it is provided on the semi - cylinder 3 of the filter element 2.

[0029] The locking components of the present utility model are arranged bidirectionally on both sides between the filter element 2 and the filter element seat 1. That is, there are two groups of coaxial cylinders in the present utility model, respectively located on both sides of the filter element 2, and correspondingly, there are also two groups of connecting shafts 4, respectively located on both sides of the filter element 2. The push - rod assembly includes connecting rods 9 respectively connected to the connecting shafts 4 on both sides, and a push - rod 10 connecting the two connecting rods 9 and capable of pushing the two connecting rods 9 to rotate. The rotation of the connecting rod 9 drives the connecting shaft 4 connected to it to rotate, and then drives the semi - cylinder 3 on the filter element seat 1 to rotate, so as to finally drive the semi - cylinder 3 on the filter element 2 to rotate, making the coaxial mating surfaces of the two located at different positions, achieving the locking or unlocking state of the filter element 2 and the filter element seat 1. The thrust of the push - rod 10 is realized through the vertical rod 11 and the rotating rod 12. The vertical rod 11 is vertically arranged on the filter element 2 through a fastener 16. One end of the rotating rod 12 is rotatably arranged at the end of the vertical rod 11, and the other end is connected to the push - rod 10. That is, through the up - and - down movement of the vertical rod 11, with the help of the rotating rod 12, the thrust on the push - rod 10 is realized, and then the connecting rod 9 is driven to rotate.

[0030] The locking or unlocking state of the filter element 2 and the filter element seat 1 of the present utility model is determined by the position of the end face formed by the splicing of the two semi - cylinders 3 and the position of the semi - cylindrical groove 6 on the filter element 2. When the end face of the splicing of the two is located in the same vertical plane as the side end face of the semi - cylindrical groove 6 on the filter element 2, that is, the end face of the splicing of the two semi - cylinders 3 is in a vertical state, the filter element 2 and the filter element seat 1 are in the unlocked state, as Figure 6 shown. When there is a certain angle between the end face of the splicing of the two semi - cylinders 3 and the end face of the semi - cylindrical groove 6 of the filter element 2, that is, the end face of the splicing of the two semi - cylinders 3 is in an inclined state, the filter element 2 and the filter element seat 1 are in the locked state, as Figure 7 shown.

[0031] In addition to the above, when the filter element 2 and the filter element seat 1 are in the locked state, the present utility model also tensions their position states through a tension spring 13. One end of the tension spring 13 is connected to a connection hole opened on the connecting rod 9. The connection hole can be set to several to adaptively select its tension according to different requirements. The other end of the tension spring 13 is connected to the filter element seat 1. Correspondingly, a fixing rod 14 for connecting the tension spring 13 extends on the filter element seat 1, as Figure 1 shown.

[0032] The filter element assembly of the utility model is based on a tongue-and-groove locking mechanism. That is, by respectively arranging two semi-cylinders 3 on the filter element seat 1 and the filter element 2, and the two semi-cylinders 3 are joined together to form a coaxial cylinder. The contact surface where the two are joined becomes the torque-bearing end face. Under the rotation of the push rod assembly connected to one of the semi-cylinders 3, the other semi-cylinder 3 is driven to rotate, thereby realizing the locking or disassembly between the filter element 2 and the filter element seat 1, so as to install and disassemble the filter element conveniently.

Claims

1. A filter element assembly based on a lock tongue type locking mechanism, characterized in that, The filter element assembly includes a filter element seat (1), a filter element (2) sleeved on the filter element seat (1), and a double-sided locking mechanism arranged between the filter element seat (1) and the filter element (2) to realize the connection between the two; The locking mechanism includes a coaxial cylinder formed by splicing two half cylinders (3). One of the half cylinders (3) is rotatably arranged on the filter element seat (1), and the other half cylinder (3) is rotatably arranged on the filter element (2). A connecting shaft (4) is connected to the half cylinder (3) arranged on the filter element seat (1). The connecting shaft (4) penetrates the filter element seat (1) and is connected to the push rod assembly. By rotating the push rod assembly, the splicing surfaces of the two half cylinders (3) are located at different positions, so as to lock or unlock the filter element (2) and the filter element seat (1).

2. The filter element assembly based on the tongue-type locking mechanism according to claim 1, wherein, A groove (5) for accommodating the half cylinder (3) on the filter element seat (1) is formed on the filter element (2). An inner extension of the end face of the groove (5) is provided with a half cylinder groove (6) that cooperates with the half cylinder (3) on the filter element (2).

3. The filter element assembly based on the tongue-type locking mechanism according to claim 1, characterized in that, When the connecting end faces of the two spliced half cylinders (3) are in a vertical state, they are located in the same vertical plane as the end face of the groove (5) where the half cylinder groove (6) is located.

4. The filter element assembly based on the latch-type locking mechanism according to claim 2, characterized in that, A convex block (7) for limiting the rotation angle of the half cylinder (3) is arranged on the half cylinder groove (6), and a through hole is correspondingly formed on the half cylinder (3) to cooperate with it.

5. The filter element assembly based on the tongue-type locking mechanism according to claim 1, wherein, A half cylinder groove (6) for accommodating the half cylinder (3) on it is formed on the filter element seat (1), and the filter element seat (1) is also provided with a through hole (8) for the connecting shaft (4) to penetrate.

6. The filter element assembly based on the latch-type locking mechanism according to claim 5, characterized in that, A convex block (7) for limiting the rotation angle of the half cylinder (3) is arranged on the half cylinder groove (6) of the filter element seat (1), and a through hole is correspondingly formed on the half cylinder (3) to cooperate with it.

7. The filter element assembly based on the tongue-type locking mechanism according to claim 1, characterized in that, The push rod assembly includes a connecting rod (9) respectively connected to the connecting shaft (4), and a push rod (10) connected to the connecting rod (9) and pushing it to rotate.

8. The filter element assembly based on the latch-type locking mechanism according to claim 7, wherein, The push rod assembly further includes a vertical rod (11) axially arranged on the filter element (2). One end is rotatably arranged on the vertical rod (11), and the other end is a rotating rod (12) connected to the push rod (10).

9. The filter element assembly based on the tongue-type locking mechanism according to claim 7, wherein, The filter element assembly further includes a tension spring (13) for tensioning the locked state of the filter element (2) and the filter element seat (1). One end of the tension spring (13) is connected to the push rod assembly, and the other end is connected to the filter element seat (1).

10. The filter element assembly based on the tongue-type locking mechanism according to claim 9, characterized in that, A connecting hole for connecting the tension spring (13) is formed on the connecting rod (9) of the push rod assembly, and a fixing rod (14) for connecting the tension spring (13) is extended on the filter element seat (1).

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