Water purifier

Abstract

The utility model provides a water purifier which comprises a water purifier shell, the water purifier shell comprises an opening and a door plate covering the opening, a clamping piece is arranged on the door plate and used for clamping the door plate to the water purifier shell, the water purifier further comprises a pressing device, and the clamping piece and the pressing device are oppositely arranged on the door plate; the pressing device is elastically connected with the door plate so as to switch a first position and a second position of the door plate; the first position is that the door plate is propped against the wall surface of the opening and the clamping piece is clamped on the water purifier shell; the second position is that the door plate is separated from the wall surface of the opening and the clamping piece is separated from the water purifier shell. On the basis of clamping piece connection, a pressing device is additionally arranged to elastically support the door plate. When the door plate is in a mounting state, the pressing device applies a supporting force to the door plate, so that the connection load borne by the clamping piece is relieved. When the door plate is in a detached state, a receding space is formed above the door plate, the clamping piece is also separated from the water purifier shell, and then the door plate can be detached by turning over the door plate.

Description

Technical Field

[0001] This utility model relates to a water purifier. Background Technology

[0002] With the increasing demand for public drinking water, commercial water purifiers have been widely used in offices, shopping malls, and large entertainment facilities. These devices typically feature a removable door panel structure, allowing users to quickly inspect filters, replace consumables, or clean internal components. Currently, snap-fit ​​connections have become the mainstream installation method due to their ease of operation and tool-free installation. As a core component of the device's appearance, the door panel must not only meet the needs of frequent disassembly and maintenance but also withstand its own weight and external mechanical loads (such as the impact of opening and closing the door) over long-term use.

[0003] Conventional snap-fit ​​connection solutions are insufficient for long-term use. The hook-like structure of the snaps, subjected to repeated bending stress during frequent disassembly and reassembly while bearing the weight of the door panel, is prone to plastic deformation within the material, leading to stress relaxation. The long-term cantilever load caused by the door panel's own weight can generate microcracks in the stress concentration area at the base of the snaps. Over time, this can result in a loose door seal or even brittle fracture, causing the door panel to detach unexpectedly, endangering equipment safety and user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect that the buckles connecting the door panel in the prior art are prone to failure when bearing the weight of the door panel for a long time, and to provide a water purifier.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a water purifier, which includes a water purifier housing, an opening, and a door panel covering the opening. A snap-fit ​​element is provided on the door panel for engaging the door panel with the water purifier housing. The water purifier also includes a presser, with the snap-fit ​​element and the presser disposed opposite to each other on the door panel. The presser and the door panel are elastically connected to switch between a first position and a second position. The first position is where the door panel abuts against the wall of the opening and the snap-fit ​​element is engaged with the water purifier housing; the second position is where the door panel is disengaged from the wall of the opening and the snap-fit ​​element is disengaged from the water purifier housing.

[0007] In this design, a press-type elastic support is added to the door panel, based on the snap-fit ​​connection, to maintain the door panel in the first position, i.e., the installed state. The press-type applies a supporting force to the door panel, causing the side of the door panel away from the press-type to press against the opening wall. When the door panel is horizontally installed, this supporting force increases the friction between the door panel and the opening wall, thereby reducing the connection load on the snap-fit. When the door panel is vertical or tilted, the supporting force provided by the press-type directly offsets part of the door panel's weight, thus improving the service life of the snap-fit. When the door panel is pushed downwards, causing the press-type elastic compression to bring the door panel to the second position, i.e., the disassembled state, a clearance space appears above the door panel, allowing the snap-fit ​​to detach from the water purifier's outer casing. The door panel can then be easily removed by simply flipping it over. This structure effectively avoids the snap-fit ​​bearing excessive weight of the door panel for extended periods, thus reducing the risk of snap-fit ​​failure during long-term use.

[0008] Preferably, the door panel is positioned in a direction that at least partially coincides with the vertical direction, the presser is located at the bottom of the door panel, and the snap-fit ​​element is located above the presser.

[0009] In this solution, the above-mentioned arrangement enables the presser to support the door panel at least in the vertical direction, even if the supporting force provided by the presser has a component that counteracts the gravity of the door panel, thereby allowing the presser to support the weight of the door panel to alleviate the connection load of the snap-fit ​​to the greatest extent.

[0010] Preferably, the presser includes a presser housing, a connecting rod, and a spring. The presser housing has a cavity for accommodating the spring. The spring is sleeved on the connecting rod. One end of the connecting rod abuts against the wall of the opening. The connecting rod extends along a direction perpendicular to its axis and has a first locking portion. One end of the spring abuts against the inner wall of the cavity, and the other end of the spring abuts against the first locking portion. The length of the projection of the first locking portion in the direction of the connecting rod axis is less than the length of the projection of the cavity in that direction.

[0011] In this design, springs abut against the inner wall of the recessed cavity of the presser housing and the first locking part of the linkage rod, respectively, so as to realize the movement of the presser housing relative to the linkage rod along its axis, that is, to realize the elastic connection between the presser and the door panel, thereby allowing the door panel to switch between the first position and the second position. The length of the projection of the first locking part in the direction of the linkage rod axis is less than the length of the projection of the recessed cavity in that direction, which can ensure that the first locking part will not be stuck at the end of the recessed cavity, thereby improving the convenience of door panel disassembly and assembly.

[0012] Preferably, at least a portion of the first locking portion is located within the cavity, and the first locking portion can slide along the inner wall surface of the cavity in the axial direction of the connecting rod.

[0013] In this solution, the above structure ensures that the two sides of the first locking part slide along the inner wall of the cavity, that is, the inner wall of the cavity is used to guide the first locking part, avoiding deviation when the spring is compressed, thereby reducing the support effect.

[0014] Preferably, the cavity abutting the end of the spring is provided with a through hole, the end of the linkage rod away from the opening extends out of the through hole, and this end is provided with a second locking part extending perpendicular to the axis of the linkage rod. The second locking part abuts against the wall surface of the presser housing away from the opening so that the distance between the inner wall surface of the cavity abutting the spring and the first locking part is less than the original length of the spring; or, the cavity abutting the end of the spring is provided with a through hole, the presser further includes a second locking part, one end of the second locking part extends in a direction perpendicular to the axis of the linkage rod and abuts against the wall surface of the presser housing away from the opening, the other end of the second locking part extends into the through hole and is connected to the linkage rod, the second locking part is used to make the distance between the inner wall surface of the cavity abutting the spring and the first locking part less than the original length of the spring.

[0015] In this design, because the distance between the inner wall of the concave cavity abutting the spring and the first locking part is less than the original length of the spring, the spring applies an upward force along the spring axis to the presser housing. Furthermore, the second locking part is mounted on or connected to the linkage rod, ensuring a fixed distance between the second locking part and the first locking part. Therefore, the second locking part limits the presser housing from the outside, thus giving the spring a pre-compression. Based on the characteristics of the spring, the greater the spring deformation, the greater the force generated. That is, when the spring has a pre-compression, meaning it has been compressed to a certain state, it tends to undergo greater restorative deformation, thus providing stronger support to the door panel and further reducing the connection load on the locking components.

[0016] Preferably, the wall surface of the presser housing away from the opening is provided with a first recess, the second locking part is disposed in the first recess, and the shape of the second locking part matches that of the first recess.

[0017] In this solution, since the second locking part is embedded in the first recessed hole, the first recessed hole can guide and position the second locking part, thereby restricting the movement of the connecting rod along its axial direction at the upper part of the connecting rod and avoiding the phenomenon of displacement.

[0018] Preferably, the end of the connecting rod away from the cavity is provided with a third locking part and a protrusion. The protrusion extends toward the opening along the axis of the connecting rod, and the third locking part extends in a direction perpendicular to the circumferential direction of the connecting rod. The opening is provided with a second recessed hole facing the wall of the connecting rod, and the protrusion extends into the second recessed hole. The projected area of ​​the third locking part along the axis of the connecting rod is larger than the hole area of ​​the second recessed hole so that the third locking part abuts against the edge of the second recessed hole.

[0019] In this design, the projected area of ​​the third locking part along the axis of the connecting rod is larger than the area of ​​the second recessed hole, ensuring that the connecting rod can abut against the wall of the opening when the protrusion is inserted into the second recessed hole. When the protrusion is inserted into the second recessed hole, the lower part of the connecting rod can be positioned to prevent the connecting rod from shifting left and right, thus improving the overall stability of the presser during elastic movement.

[0020] Preferably, a connecting hole is provided at the position where the presser is installed on the door panel, and the connecting hole is used for the extension of the linkage rod.

[0021] In this solution, by setting a through hole that allows the linkage rod to extend, the presser housing can be placed inside the door panel, and the linkage rod extends out of the door panel and abuts against the opening wall, thereby reducing the length of the door panel in the presser support direction and optimizing the space occupied by the presser.

[0022] Preferably, a reinforcing member is provided at the position where the door panel is installed with the presser.

[0023] In this solution, the use of reinforcing components can improve the connection strength between the presser and the door panel.

[0024] Preferably, there are multiple pressers, and the multiple pressers are symmetrically arranged with respect to the door panel along the centerline of the presser support direction.

[0025] In this design, multiple pressers can increase the support force on the door panel. The multiple pressers are symmetrically arranged relative to the door panel along the centerline of the presser support direction, which can make the door panel more evenly stressed.

[0026] The positive and progressive effects of this utility model are as follows:

[0027] This utility model provides a water purifier that, based on the snap-fit ​​connection, adds a presser to elastically support the door panel, keeping the door panel in the first position, i.e., the installed state. The presser applies a supporting force to the door panel, causing the side of the door panel away from the presser to abut against the opening wall. When the door panel is horizontally set, this supporting force increases the friction between the door panel and the opening wall, thereby reducing the connection load borne by the snap-fit. When the door panel is vertical or tilted, the supporting force provided by the presser directly offsets part of the door panel's weight, thus improving the service life of the snap-fit. When the door panel is pushed downwards, causing the presser to elastically compress and bring the door panel to the second position, i.e., the disassembled state, a clearance space appears above the door panel, allowing the snap-fit ​​to detach from the water purifier's outer casing. The door panel can then be easily removed by simply flipping it over. This structure effectively avoids the snap-fit ​​bearing excessive door panel weight over a long period, thus reducing the risk of snap-fit ​​failure during long-term use. Attached Figure Description

[0028] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0029] Figure 2 This is a partial enlarged view of the snap-fit ​​component according to an embodiment of the present utility model.

[0030] Figure 3 This is a partial enlarged view of the presser according to an embodiment of the present utility model.

[0031] Figure 4 This is a perspective view of the presser according to an embodiment of the present utility model.

[0032] Figure 5 This is a cross-sectional view of the presser according to an embodiment of the present utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] Door panel 1

[0035] Connecting hole 101

[0036] Card connector 2

[0037] Connecting part 201

[0038] Insertion part 202

[0039] Presser 3

[0040] Presser housing 301

[0041] Linkage rod 302

[0042] Spring 303

[0043] 304 cavity

[0044] First stop part 305

[0045] 306 perforated

[0046] Second stop part 307

[0047] First concave hole 308

[0048] Third stop part 309

[0049] Protrusion 310

[0050] Reinforcing component 4 Detailed Implementation

[0051] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0052] like Figures 1-5 As shown, this embodiment provides a water purifier, which includes a water purifier housing, an opening, and a door panel 1 covering the opening. A snap-fit ​​element 2 is provided on the door panel 1 for snapping the door panel 1 onto the water purifier housing. The water purifier also includes a presser 3, with the snap-fit ​​element 2 and the presser 3 disposed opposite to each other on the door panel 1. The presser 3 and the door panel 1 are elastically connected to switch between a first position and a second position of the door panel 1. In the first position, the door panel 1 abuts against the wall of the opening and the snap-fit ​​element 2 is snapped onto the water purifier housing. In the second position, the door panel 1 is disengaged from the wall of the opening and the snap-fit ​​element 2 is disengaged from the water purifier housing.

[0053] Thus, based on the connection of the snap-fit ​​component 2, a presser 3 is added to elastically support the door panel 1, keeping the door panel 1 in the first position, i.e., the installed state. The presser 3 applies a supporting force to the door panel 1, causing the side of the door panel 1 away from the presser 3 to abut against the opening wall. When the door panel 1 is horizontally set, the supporting force increases the friction between the door panel 1 and the opening wall, thereby relieving the connection load borne by the snap-fit ​​component 2. When the door panel 1 is vertical or tilted, the supporting force provided by the presser 3 directly offsets part of the weight of the door panel 1, thereby improving the service life of the snap-fit ​​component 2. When the door panel 1 is pushed downwards, causing the presser 3 to elastically compress and bring the door panel 1 to the second position, i.e., the disassembled state, a clearance space appears above the door panel 1, and the snap-fit ​​component 2 also detaches from the water purifier casing. Then, the door panel 1 can be easily removed by simply flipping it over. The above structure can effectively prevent the snap-fit ​​component 2 from bearing too much weight of the door panel 1 for a long time, thereby reducing the risk of snap-fit ​​component 2 failure during long-term use.

[0054] In this embodiment, the orientation of the door panel 1 is at least partially aligned with the vertical direction. The presser 3 is located at the bottom of the door panel 1, and the latching member 2 is located above the presser 3. This arrangement ensures that the presser 3 supports the door panel 1 at least vertically, even if the supporting force provided by the presser 3 has a component that counteracts the weight of the door panel 1, thereby allowing the presser 3 to support the weight of the door panel 1 to minimize the connection load on the latching member 2. Preferably, the extension direction of the door panel 1 is completely aligned with the vertical direction, i.e., completely aligned with the weight direction of the door panel 1.

[0055] In other embodiments, the door panel 1 can be disposed on the opening from top to bottom, with the presser 3 disposed at one end of the door panel 1 and the latching member 2 disposed at the other end of the door panel 1, and the presser 3 pushes the door panel 1 towards the other end; alternatively, the door panel 1 can be disposed vertically, with the presser 3 disposed on the left side of the door panel 1 and the latching member 2 disposed on the right side of the door panel 1, and the presser 3 pushes the door panel 1 towards the right side; or, the presser 3 can be disposed on the right side of the door panel 1 and the latching member 2 disposed on the left side of the door panel 1, and the presser 3 pushes the door panel 1 towards the left side.

[0056] Specifically, such as Figure 2 As shown, the snap-fit ​​connector 2 can be L-shaped. One end of the snap-fit ​​connector 2 that connects to the door panel 1 is the connecting part 201, and the other end that extends laterally is the insertion part 202. There is a snap-fit ​​interface between the insertion part 202 and the connecting part 201, with the snap-fit ​​interface facing upwards, i.e., in the same supporting direction as the presser 3. The presser 3 supports the door panel 1 upwards, causing the snap-fit ​​interface to engage with the water purifier's outer casing.

[0057] Specifically, such as Figure 4 and Figure 5 As shown, the presser 3 includes a presser housing 301, a connecting rod 302, and a spring 303. The presser housing 301 is provided with a cavity 304 for accommodating the spring 303. The spring 303 is sleeved on the connecting rod 302. One end of the connecting rod 302 abuts against the wall of the opening. The connecting rod 302 extends along a direction perpendicular to its axis and is provided with a first locking part 305. One end of the spring 303 abuts against the inner wall of the cavity 304, and the other end of the spring 303 abuts against the first locking part 305. The length of the projection of the first locking part 305 in the axial direction of the connecting rod 302 is less than the length of the projection of the cavity 304 in that direction.

[0058] Thus, the spring 303 abuts against the inner wall of the cavity 304 of the presser housing 301 and the first locking part 305 of the linkage rod 302, respectively, so that the presser housing 301 moves relative to the linkage rod 302 along its axis, that is, the presser 3 and the door panel 1 are elastically connected, thereby allowing the door panel 1 to switch between the first position and the second position. The length of the projection of the first locking part 305 in the axial direction of the linkage rod 302 is less than the length of the projection of the cavity 304 in that direction, which can ensure that the first locking part 305 will not be stuck at the end of the cavity 304, thereby improving the convenience of disassembling and assembling the door panel 1.

[0059] Among them, such as Figure 5 As shown, at least a portion of the first locking part 305 is located within the cavity 304, meaning that the projection of the first locking part 305 along the direction perpendicular to the axial direction of the connecting rod 302 is at least partially located within the cavity 304. The first locking part 305 can slide along the inner wall surface of the cavity 304 along the axial direction of the connecting rod 302. This structure ensures that both sides of the first locking part 305 slide along the inner wall surface of the cavity 304, thus utilizing the inner wall surface of the cavity 304 to guide the first locking part 305, preventing offset when the spring 303 is compressed, thereby reducing the support effect. Preferably, the projection of the first locking part 305 along the direction perpendicular to the axial direction of the connecting rod 302 is at least partially located within the cavity 304, ensuring that the first locking part 305 will not disengage from the cavity 304, thus preventing the guiding function of the cavity 304 from failing.

[0060] In this embodiment, a through hole 306 is provided at one end of the cavity 304 that abuts against the spring 303. The end of the linkage rod 302 away from the opening extends out of the through hole 306, and this end is provided with a second locking part 307 extending perpendicular to the axis of the linkage rod 302. The second locking part 307 abuts against the wall surface of the presser housing 301 away from the opening so that the distance between the inner wall surface of the cavity 304 that abuts against the spring 303 and the first locking part 305 is less than the original length of the spring 303.

[0061] In other embodiments, the cavity 304 abutting against one end of the spring 303 is provided with a through hole 306. The presser 3 also includes a second locking part 307. One end of the second locking part 307 extends in a direction perpendicular to the axis of the linkage 302 and abuts against the wall surface of the presser housing 301 away from the opening. The other end of the second locking part 307 extends into the through hole 306 and is connected to the linkage 302. The second locking part 307 is used to make the distance between the inner wall surface of the cavity 304 abutting against the spring 303 and the first locking part 305 less than the original length of the spring 303.

[0062] Thus, since the distance between the inner wall of the cavity 304 abutting against the spring 303 and the first locking part 305 is less than the original length of the spring 303, the spring 303 will apply an upward force along the axis of the spring 303 to the presser housing 301. Furthermore, the second locking part 307 is disposed on or connected to the linkage rod 302, making the distance between the second locking part 307 and the first locking part 305 fixed. Therefore, the second locking part 307 will limit the presser housing 301 from the outside, thereby giving the spring 303 a pre-compression amount. Based on the characteristics of the spring 303, the greater the deformation of the spring 303, the greater the force generated. That is, when the spring 303 has a pre-compression amount, i.e., the spring 303, which has been compressed to a certain state, will have a greater tendency to recover its deformation, thus providing stronger support to the door panel 1 and further reducing the connection load borne by the latching member 2.

[0063] In this embodiment, as Figure 4 and Figure 5 As shown, a first recessed hole 308 is provided on the wall surface of the presser housing 301 away from the opening. A second locking part 307 is disposed within the first recessed hole 308, and the shape of the second locking part 307 matches that of the first recessed hole 308. Since the second locking part 307 is embedded in the first recessed hole 308, the first recessed hole 308 can guide and position the second locking part 307, thereby restricting the axial movement of the connecting rod 302 at the upper part of the connecting rod 302 and preventing deviation. The second locking part 307 has a C-shaped cross-section in the vertical direction, and the first recessed hole 308 is also a matching C-shaped section.

[0064] Specifically, such as Figure 4 and Figure 5 As shown, the end of the linkage rod 302 away from the cavity 304 is provided with a third locking part 309 and a protrusion 310. The protrusion 310 extends toward the opening along the axial direction of the linkage rod 302. The third locking part 309 extends in a direction perpendicular to the circumference of the linkage rod 302. The opening abuts against the wall surface of the linkage rod 302 and a second recessed hole is formed. The protrusion 310 extends into the second recessed hole. The projected area of ​​the third locking part 309 along the axial direction of the linkage rod 302 is larger than the hole area of ​​the second recessed hole so that the third locking part 309 abuts against the edge of the second recessed hole.

[0065] Thus, the projected area of ​​the third locking part 309 along the axis of the connecting rod 302 is larger than the hole area of ​​the second recess, ensuring that the connecting rod 302 can abut against the wall of the opening when the protrusion 310 is inserted into the second recess. When the protrusion 310 is inserted into the second recess, the lower part of the connecting rod 302 can be positioned to prevent the connecting rod 302 from shifting left and right, thereby improving the overall stability of the presser 3 during elastic movement.

[0066] In this embodiment, the second recessed hole can be a through hole, i.e., a hole that is not closed at the lower end, and the forming operation of such a through hole is simple. In other embodiments, the second recessed hole can also be a blind hole, i.e., a hole that is closed at the lower end, with the protrusion 310 abutting against the closed lower end of the blind hole. Since the forming operation of a blind hole is complicated, the second recessed hole is preferably a through hole.

[0067] Specifically, such as Figure 3 As shown, a connecting hole 101 is provided at the position where the presser 3 is installed on the door panel 1. The connecting hole 101 is used for the extension of the linkage rod 302.

[0068] Thus, by providing a through hole that allows the linkage rod 302 to extend, the presser housing 301 can be placed inside the door panel 1, and the linkage rod 302 extends out of the door panel 1 and abuts against the opening wall, thereby reducing the length of the door panel 1 in the support direction of the presser 3 and optimizing the space occupied by the presser 3.

[0069] In this embodiment, the lower end of the presser housing 301 is detachably connected to the bottom of the door panel 1, preferably by bolts.

[0070] In this embodiment, as Figure 3 As shown, a reinforcing member 4 is provided at the position where the presser 3 is installed on the door panel 1. That is, a reinforcing member 4 is added between the lower end of the presser housing 301 and the door panel 1. The reinforcing member 4 can be a rectangular plate to distribute the stress generated during connection; the reinforcing member 4 can also be a reinforcing rib connected to the presser housing 301. Using the reinforcing member 4 can improve the connection strength between the presser 3 and the door panel 1.

[0071] In this embodiment, as Figure 1 As shown, there are two pressers 3, which are symmetrically arranged with respect to the centerline of the gravity direction of the door panel 1. Multiple pressers 3 can increase the support force on the door panel 1, and the symmetrical arrangement of multiple pressers 3 with respect to the centerline of the gravity direction of the door panel 1 can make the force on the door panel 1 more even.

[0072] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A water purifier, comprising a water purifier housing, the water purifier housing including an opening and a door panel covering the opening, the door panel being provided with a snap-fit ​​element for snapping the door panel into the water purifier housing, characterized in that, The water purifier also includes a presser, and the snap-fit ​​component is disposed on the door panel opposite to the presser. The presser is elastically connected to the door panel to switch the door panel to a first position and a second position. In the first position, the door panel abuts against the wall of the opening and the snap-fit ​​is snapped into the water purifier housing. In the second position, the door panel is detached from the wall of the opening and the snap-fit ​​is detached from the water purifier housing.

2. The water purifier as described in claim 1, characterized in that, The door panel is positioned in a direction that at least partially coincides with the vertical direction. The presser is located at the bottom of the door panel, and the snap-fit ​​component is located above the presser.

3. The water purifier as described in claim 1, characterized in that, The presser includes a presser housing, a connecting rod, and a spring. The presser housing has a cavity for accommodating the spring. The spring is sleeved on the connecting rod. One end of the connecting rod abuts against the wall of the opening. The connecting rod extends along a direction perpendicular to its axis and has a first locking part. One end of the spring abuts against the inner wall of the cavity, and the other end of the spring abuts against the first locking part. The length of the projection of the first locking part along the axis of the connecting rod is less than the length of the projection of the cavity in that direction.

4. The water purifier as described in claim 3, characterized in that, At least a portion of the first locking part is located within the cavity, and the first locking part can slide along the inner wall surface of the cavity in the axial direction of the connecting rod.

5. The water purifier as described in claim 3, characterized in that, The cavity abutting the end of the spring is provided with a through hole, the end of the linkage rod away from the opening extends out of the through hole, and the end is provided with a second locking part extending perpendicular to the axis of the linkage rod. The second locking part abuts against the wall surface of the presser housing away from the opening so that the distance between the inner wall surface of the cavity abutting the spring and the first locking part is less than the original length of the spring. Alternatively, the cavity abutting one end of the spring may be provided with a through hole, and the presser may further include a second locking part. One end of the second locking part extends in a direction perpendicular to the axis of the linkage and abuts against the wall surface of the presser housing away from the opening. The other end of the second locking part extends into the through hole and is connected to the linkage. The second locking part is used to make the distance between the inner wall surface of the cavity abutting the spring and the first locking part less than the original length of the spring.

6. The water purifier as described in claim 5, characterized in that, The presser housing has a first recessed hole on the wall surface away from the opening, and the second locking part is disposed in the first recessed hole, and the shape of the second locking part matches the shape of the first recessed hole.

7. The water purifier as described in claim 3, characterized in that, The connecting rod has a third locking part and a protrusion at one end away from the cavity. The protrusion extends toward the opening along the axis of the connecting rod, and the third locking part extends in a direction perpendicular to the circumference of the connecting rod. The opening has a second recessed hole on the wall of the connecting rod, and the protrusion extends into the second recessed hole. The projected area of ​​the third locking part along the axis of the connecting rod is larger than the hole area of ​​the second recessed hole so that the third locking part abuts against the edge of the second recessed hole.

8. The water purifier as described in claim 3, characterized in that, A connecting hole is provided at the position where the presser is installed on the door panel, and the connecting hole is used for the extension of the linkage rod.

9. The water purifier as described in claim 1, characterized in that, A reinforcing member is provided at the location on the door panel where the presser is installed.

10. The water purifier as described in claim 1, characterized in that, There are multiple pressers, and the multiple pressers are symmetrically arranged with respect to the door panel along the centerline of the presser support direction.

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