Push extrusion type filter element locking mechanism

Abstract

The utility model discloses a push extrusion type filter element locking mechanism which comprises a filter element seat provided with a button sliding block, a rotating connecting rod arranged on the filter element seat and a push rod matched with the rotating connecting rod to move, the top end face of the rotating connecting rod is in inclined plane contact with the end portion of the button sliding block, and the top end face of the rotating connecting rod abuts against the push rod in an inclined mode. The push rod moves vertically to extrude the rotary connecting rod to move transversely so as to drive the button sliding block to drive front and back, and locking and unlocking of the filter element are achieved. According to the filter element locking mechanism disclosed by the utility model, the rotary connecting rod is arranged, and the linkage effect between the push rod and the button sliding block is combined, so that the rotary connecting rod is extruded to move transversely in the vertical pushing process of the push rod, and the button can slide leftwards and rightwards through the inclined surface contact effect of the rotary connecting rod and the button sliding block; finally, the filter element and the filter element seat can be conveniently locked and unlocked.

Description

Technical Field

[0001] The utility model belongs to the field of filter elements, and in particular relates to a push-and-extrusion type filter element locking mechanism. Background Art

[0002] Currently, filtration devices are widely used, especially in the huge market for water purification and drinking water equipment. With the development of science and technology, more and more filtration devices and other products have emerged. The filter element is the core of the filtration device. The filter element needs to be replaced, repaired or cleaned after a period of use. This requires removing the filter part of the filter element from the filtration device. Currently, the filter element is mostly fixed with connectors, rotating snap connections, and threaded connections. Therefore, it is inconvenient to install and requires tools, the installation torque is large, and the water supply or water outlet cannot be automatically disconnected. Each replacement requires manual switching of the water supply locking device, and water leaks when the filter element is inverted or horizontal. These problems make the removal of the filter element inefficient, time-consuming and labor-intensive, and the connectors are easy to lose, making it difficult for non-professionals to operate.

[0003] Existing technologies such as announcement number CN108686414B, entitled "A device for conveniently replacing filter cartridges", disclose the use of a connecting rod drive method to achieve convenient replacement of filter cartridges, but it adopts a concave slope set on the connecting rod to lock and unlock the filter cartridge and the filter cartridge seat through the base of the slope and the button slider.

[0004] Based on this, there is an urgent need for another filter element locking mechanism that can also easily replace or disassemble the filter element. Utility Model Content

[0005] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a push-extrusion type filter element locking mechanism, which is based on the matching setting between the push rod and the locking device of the filter element device, so that the filter element can be easily replaced and disassembled.

[0006] Technical solution: The push-and-squeeze filter element locking mechanism of the utility model includes a filter element seat provided with a button slider, a rotating connecting rod provided on the filter element seat, and a push rod that moves in coordination with the rotating connecting rod; the top end surface of the rotating connecting rod forms an oblique contact with the end of the button slider, and the top end surface of the rotating connecting rod abuts against the oblique surface of the push rod. The vertical movement of the push rod squeezes the rotating connecting rod to move horizontally and then drives the button slider back and forth to achieve locking and unlocking of the filter element.

[0007] Furthermore, a connecting rod is horizontally provided on the filter element seat of the filter element locking mechanism to realize the rotational connection of the rotating connecting rod, and the rotating connecting rod is rotatably provided on the connecting rod.

[0008] Furthermore, a water flow passage is provided in the filter element seat of the filter element locking mechanism, and a locking device is provided on the filter element seat to achieve a detachable connection between the filter element and the filter element. The locking device includes a slide fixing cover installed at the bottom end of the filter element seat and having a central through hole.

[0009] Furthermore, the button slider of the filter element locking mechanism has a central through hole and is fixed between the filter element seat and the slide plate fixing cover in a manner that allows it to slide back and forth.

[0010] Furthermore, grooves are provided on both sides of the central through hole of the button slider of the filter element locking mechanism, and a protrusion corresponding to the groove is provided at the upper end of the filter element. The surface of the groove that contacts the protrusion is an inclined surface, and the connection and separation of the filter element and the filter element seat are achieved through the cooperation of the protrusion and the groove.

[0011] Furthermore, fixing cover grooves for the protrusions to pass through are provided on both sides of the central through hole of the slide fixing cover of the filter element locking mechanism.

[0012] Furthermore, the other end of the button slider of the filter element locking mechanism is connected to an elastic element, and the other end of the elastic element is against the inner wall of the filter element seat.

[0013] Furthermore, hooks are provided on both sides of the push rod extending from the filter element seat of the filter element locking mechanism, and the connecting rod spans the hooks on both sides.

[0014] Beneficial effect: Compared with the prior art, the advantages of the present invention are: the filter element locking mechanism is realized by setting a rotating connecting rod, combining the linkage between the push rod and the button slider, thereby realizing the horizontal movement of the rotating connecting rod when the push rod is pushed vertically, and then the left and right sliding of the button is realized through the inclined contact between the rotating connecting rod and the button slider, and finally the filter element and the filter element seat are conveniently locked and unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the filter element seat of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the sliding plate fixing cover of the utility model;

[0017] Figure 3 This is a structural diagram of the button slider of the utility model;

[0018] Figure 4 A schematic diagram of the partial structure of the filter element supporting the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter element locking mechanism of the utility model Figure 1 ;

[0020] Figure 6 This is a schematic diagram of the structure of the filter element locking mechanism of the utility model Figure 2 ;

[0021] Figure 7 It is a partial structural diagram of the filter element locking mechanism of the utility model. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the push-and-squeeze filter element locking mechanism of the present invention comprises a filter element seat 2 with a water flow passage therein, and a locking device for connecting the filter element seat 2 to the filter element in a detachable manner. Figures 2 to 4 As shown, the locking device includes a slide fixing cover 6 provided at the bottom end of the filter element seat 2 and having a central through hole, and a button slider 1 fixed between the slide fixing cover 6 and the filter element seat 2 in a manner that can slide back and forth. Both the slide fixing cover 6 and the button slider 1 are provided with a central through hole for the filter element to pass through. A plurality of grooves 7 are provided on both sides of the central through hole of the button slider 1. The upper end of the filter element is provided with a plurality of protrusions 8 corresponding to the plurality of grooves 7, and the surface where the grooves 7 meet the protrusions 8 is an inclined surface, and the connection and separation between the filter element and the filter element seat 2 are achieved by the cooperation between the protrusions 8 and the grooves 7. Fixed cover grooves 9 for the protrusions 8 to pass through are provided on both sides of the central through hole of the slide fixing cover 6.

[0024] The tail end of the button slider 1 is connected to an elastic element 10, the other end of which abuts against the inner wall of the filter cartridge holder 2. The top end of the button slider 1 extends out of the filter cartridge holder 2 and is linked to the push rod 4 via a rotating connecting rod 3. Hooks 11 extend from the filter cartridge holder 2 on both sides of the push rod 4, and connecting rods 5 are arranged across the hooks 11 on both sides. A rotating connecting rod 3 is rotatably provided on the connecting rod 5, and the top surface of the rotating connecting rod 3 forms an inclined surface contact with the end of the button slider 1. This inclined surface contact can be formed by setting the rotating connecting rod 3 to be inclined, or by setting the contact surfaces of the rotating connecting rod 3 and the button slider 1 to be matched inclined surfaces. The bottom end surface of the rotating connecting rod 3 is in contact with the push rod 4. Similarly, the two can also form an oblique contact, and then during the vertical movement of the push rod 4, a lateral extrusion is formed on the rotating connecting rod 3, that is, a horizontal force is provided to the rotating connecting rod 3 to drive it, and then under its unrestricted rotation condition, it can drive the button slider 1 that forms an oblique contact with it to slide back and forth, that is, a horizontal force is provided to the button slider 1 to drive it.

[0025] Working principle: Figure 5 and Figure 6As shown, when the filter element connected to the filter element seat 2 needs to be replaced or disassembled, the push rod 4 is pushed upward, and the vertical movement of the push rod 4 squeezes the rotating connecting rod 3 to move horizontally, and then based on the inclined contact between the rotating connecting rod 3 and the button slider 1, the button slider 1 is driven to slide backward, so that the groove 7 on the button slider 1 is connected with the fixed cover groove 9 to form a passage, and the filter element is replaced.

Claims

1. A push-and-squeeze filter element locking mechanism, characterized in that: The filter element locking mechanism comprises a filter element seat (2) provided with a button slider (1), a rotating connecting rod (3) provided on the filter element seat (2), and a push rod (4) moving in conjunction with the rotating connecting rod (3); the top end surface of the rotating connecting rod (3) forms an oblique contact with the end of the button slider (1), and the top end surface of the rotating connecting rod (3) and the push rod (4) form an oblique abutment with each other, and the push rod (4) is driven to move forward and backward by the vertical movement of the push rod (4) to squeeze the rotating connecting rod (3). A connecting rod (5) for realizing a rotatable connection with the rotating connecting rod (3) is horizontally provided on the filter element seat (2), and the rotating connecting rod (3) is rotatably provided on the connecting rod (5); Hooks (11) are provided on both sides of the push rod (4) on the filter element seat (2), and the connecting rod (5) spans the hooks (11) on both sides.

2. The push-and-squeeze filter element locking mechanism according to claim 1, characterized in that: The filter element seat (2) is provided with a passage for water flow, and the filter element seat (2) is provided with a locking device for realizing a detachable connection between the filter element and the filter element, wherein the locking device comprises a slide fixing cover (6) installed at the bottom end of the filter element seat (2) and having a central through hole.

3. The push-and-squeeze filter element locking mechanism according to claim 2, characterized in that: The button slider (1) has a central through hole and is fixed between the filter element seat (2) and the slide plate fixing cover (6) in a manner that allows it to slide back and forth.

4. The push-and-squeeze filter element locking mechanism according to claim 2, characterized in that: Grooves (7) are provided at intervals on both sides of the central through hole of the button slider (1); a convex block (8) corresponding to the groove (7) is provided on the upper end of the filter element; the surface of the groove (7) in contact with the convex block (8) is an inclined surface; and the connection and separation of the filter element and the filter element seat (2) are achieved through the cooperation of the convex block (8) and the groove (7).

5. The push-and-squeeze filter element locking mechanism according to claim 4, characterized in that: Fixed cover grooves (9) for the protrusions (8) to pass through are provided on both sides of the central through hole of the slide plate fixed cover (6).

6. The push-and-squeeze filter element locking mechanism according to claim 1, characterized in that: The other end of the button slider (1) is connected to an elastic element (10), and the other end of the elastic element (10) abuts against the inner side wall of the filter element seat (2).

Images