Filter element and locking and removal device for a filter element

Abstract

The application relates to the field of filtering devices, and particularly discloses a filter core and a locking and taking-out device for the filter core, which comprises a frame, a locking mechanism and an ejection mechanism, a filter core cavity is formed in the frame, the filter core cavity is provided with an opening, the filter core cavity is used for loading a filter core body in a direction deviated from the length direction of the filter core body, the locking mechanism is used for limiting the filter core body from moving out of the filter core cavity, and the ejection mechanism is used for pushing the filter core body out of the filter core cavity. The application has the effect of improving the convenience of replacing the filter core in a narrow space.

Description

Technical Field

[0001] This application relates to the field of filtration devices, and in particular to a filter element and a device for locking and removing the filter element. Background Technology

[0002] A water purifier is a water purification device that uses multi-stage filter cartridges to purify water, effectively filtering out inorganic salts, organic matter, bacteria, and other pollutants from the water.

[0003] Most water purifiers require the filter cartridge to be removed and installed along its length, necessitating ample space in front of the installation location. However, since most water purifiers are installed in confined spaces like under-sink locations, this significantly restricts the direction and space available for filter removal. Removing the filter cartridge from the machine can strain or even displace connected pipes, potentially leading to leaks or pipe bends after reinstallation. Summary of the Invention

[0004] To improve the ease of replacing filter cartridges in confined spaces, this application provides a filter cartridge and a locking and removal device for the filter cartridge.

[0005] The filter cartridge locking and removal device provided in this application adopts the following technical solution:

[0006] A filter cartridge locking and removal device includes a frame, a locking mechanism, and an ejection mechanism. The frame has a filter cartridge cavity with an opening, and the filter cartridge cavity is used for inserting a filter cartridge body in a direction offset from the length direction of the filter cartridge body. The locking mechanism is used to restrict the filter cartridge body from moving out of the filter cartridge cavity, and the ejection mechanism is used to push the filter cartridge body out of the filter cartridge cavity.

[0007] By adopting the above technical solution, when replacing the filter element, first release the locking mechanism from restricting the filter element body, then use the ejection mechanism to eject the filter element body out of the filter element cavity, and finally remove the filter element body in a direction offset from its length. When installing the filter element body, insert it into the filter element cavity in a direction offset from its length. The optimal method is to insert the filter element body into the filter element cavity in a direction perpendicular to its own length, and then lock the filter element using the locking mechanism.

[0008] This method of replacing the filter element has two advantages. First, the design of the filter element cavity allows the direction of disassembly and assembly of the filter element body to be offset from its own length direction, effectively reducing the space required for disassembly and assembly of the filter element body. Second, the ejection mechanism ejects the filter element, which further improves the ease of replacing the filter element body in a confined space compared to prying it out.

[0009] Optionally, the locking mechanism is slidably mounted on the frame, and the sliding direction of the locking mechanism is offset from the direction in which the filter element body is inserted into the filter element cavity. The locking mechanism includes a pin for inserting into a slot on the filter element body.

[0010] By adopting the above technical solution, when locking the filter element body installed in the filter element cavity, the locking mechanism causes the pin to be inserted into the slot on the filter element body. Since the sliding direction of the locking mechanism is offset from the direction in which the filter element body is installed in the filter element cavity, the pin inserted into the slot on the filter element body along its own sliding direction can effectively restrict the filter element body from moving out of the filter element cavity, and the structure is simple, reliable, and easy to operate.

[0011] Optionally, the locking mechanism further includes a guide rail connected to the pin, and the frame has a guide groove, in which the guide rail is slidably disposed.

[0012] By adopting the above technical solution, the guide rail is slidably set in the guide groove. Firstly, this improves the stability of the pin's sliding motion, facilitating its insertion into the slot. Secondly, it enhances the connection between the guide rail and the guide groove, as well as the connection between the pin and the slot, ensuring the filter element body is relatively connected to the frame, thus improving the stability of the filter element body after it is installed in the filter element cavity. Even if the filter element body is subjected to the force of water hammer or other external impacts, it is not easily detached from the filter element cavity.

[0013] Optionally, the locking mechanism further includes a handle, and multiple pins are provided, each pin being connected to the handle.

[0014] By adopting the above technical solution, compared to directly moving the insert block that has already been inserted into the slot, moving the handle to move the insert block makes it easier for staff to lock and unlock the filter body.

[0015] Optionally, the ejection mechanism includes an ejector rotatably mounted on the frame and a linkage for driving the ejector to rotate. The ejector includes an ejection protrusion offset from the rotation axis of the ejector. The ejection protrusion is used to abut against the filter element body and to push the filter element body out of the filter element cavity.

[0016] By adopting the above technical solution, when replacing the filter element body, the ejector is driven to rotate by the linkage, causing the ejector protrusion to rotate. Because the rotation axis of the ejector protrusion is misaligned with that of the ejector, the ejector protrusion moves relative to the frame. During this movement, the ejector protrusion presses against the filter element body, and as the ejector continues to rotate, the ejector protrusion pushes the filter element body out of the filter element cavity.

[0017] After the locking mechanism releases the filter element body, the ejector mechanism actively pushes the filter element body out of the filter element cavity. The structure is simple and reliable, and compared with manually prying out the filter element body, it improves the convenience of replacing the filter element in a confined space.

[0018] Optionally, one end of the linkage is hinged to the ejector, and the other end of the linkage is hinged to the locking mechanism;

[0019] When the pin is fully inserted into the slot on the filter element body, the protruding protrusion is located outside the filter element cavity.

[0020] When the protruding protrusion contacts the filter element body, the pin is completely outside the slot on the filter element body.

[0021] By adopting the above technical solution, when the locking mechanism is moved, since one end of the linkage is hinged to the locking mechanism, the hinge point between the linkage and the locking mechanism moves together with the locking mechanism. During the movement, the linkage drives the hinge point between the ejector and the linkage to move, thereby causing the ejector to rotate relative to the frame.

[0022] When installing the filter cartridge body, the locking mechanism is moved to ensure the pin is fully inserted into the slot, and the ejector is moved outside the filter cartridge cavity, meaning the ejector will not affect the installation of the filter cartridge body. When replacing the filter cartridge, the locking mechanism is moved to rotate the ejector. When the ejector rotates until the ejection protrusion abuts against the filter cartridge body, the pin is completely outside the slot, and the movement of the filter cartridge body by the ejector will not be affected by the pin.

[0023] In summary, when the insert is removed, the ejector pushes the filter body with a delay; only after ensuring that the impact of the ejector protrusion on the installation of the filter body is eliminated can the pin be inserted into the slot; with this design, the ejector can not only push the filter body out of the filter cavity, but also minimize the impact on the disassembly and assembly of the filter body.

[0024] Optionally, the pin can be moved toward the slot on the filter body until the locking mechanism abuts against the frame, and the linkage is provided with an elastic element for applying force to the linkage.

[0025] The rotation axis formed by the linkage hinged to the ejector is the first rotation axis, the rotation axis formed by the linkage hinged to the locking mechanism is the second rotation axis, and the line that coincides with the direction of the force applied by the elastic member to the linkage is the force application line.

[0026] When the pin moves toward the slot on the filter body until the locking mechanism abuts against the frame, the pin is completely outside the slot, the first rotating shaft is located on the side of the force line closer to the second rotating shaft, and the ejector protrusion is located inside the filter cavity.

[0027] When the protruding protrusion is located outside the filter element cavity, the first rotating shaft is located on the side where the force line is far away from the second rotating shaft.

[0028] By adopting the above technical solution, when replacing the filter element body, the locking mechanism is first moved to allow the pin to move out of the slot, at which point the linkage rotates together. When the linkage rotates until the first rotating shaft is located on the side of the force line closer to the second rotating shaft, the elastic element applies force to the linkage, causing the locking mechanism to move further to contact the frame and remain in contact, thus restricting further rotation of the linkage. At this point, the pin is completely outside the slot, and the elastic element keeps the pin outside the slot. Thus, firstly, when installing a new filter element body, the operator does not need to fully unlock the locking mechanism; the locking mechanism can move to full unlock on its own after pushing out the filter element body under the action of the elastic element. Secondly, there is no need to continuously apply force to the locking mechanism to keep it in the unlocked state, making it easier for the operator to replace the filter element body.

[0029] When the new filter element body is inserted into the filter element cavity, it initially contacts the ejector protrusion. As the filter element body continues to be inserted, the ejector rotates, completely pushing the protrusion out of the filter element cavity. The ejector then drives the linkage to rotate until the first rotation axis is located on the side where the force line is far from the second rotation axis. At this point, under the action of the elastic element, the pin quickly inserts into the slot, thus locking the new filter element body. This design makes installing the new filter element body as simple as pushing it into the filter element cavity, greatly improving the ease of installation.

[0030] Optionally, for insertion into the filter cartridge cavity, the component includes a filter cartridge body and a connector connected to the filter cartridge body, wherein the extension direction of the connector is consistent with the direction in which the filter cartridge body is inserted into the filter cartridge cavity.

[0031] By adopting the above technical solution, the extension direction of the connector is consistent with the direction in which the filter element body is installed into the filter element cavity, so that the connector can be installed simultaneously when the filter element body is installed into the filter element cavity. Furthermore, since the filter element body can be installed into or removed from the filter element cavity in a direction offset from its own length, the ease of disassembling and assembling the filter element body in confined spaces is high. The ejection mechanism further enhances the ease of filter element body replacement by ejecting it during replacement.

[0032] Optionally, the filter element body is provided with a slot, and the extension direction of the slot is offset from the direction in which the filter element body is inserted into the filter element cavity.

[0033] By adopting the above technical solution, a slot for inserting a pin is opened on the filter element body. The pin and the slot cooperate to lock the filter element body. The structure is simple and reliable and easy to operate.

[0034] Optionally, the side wall of the filter element body is provided with an ejection surface for contacting the ejection mechanism.

[0035] By adopting the above technical solution, compared with the ejection mechanism directly pushing and ejecting the filter element body from the circumferential sidewall, by opening an ejection surface on the sidewall of the filter element body for the ejection mechanism to abut against, the ejection mechanism applies the ejection force applied to the filter element body to the ejection surface, so that the rotational action of ejection has a stable "rolling contact surface", which avoids the filter element body from rotating and slipping when being ejected by the ejection mechanism, and helps the ejection mechanism eject the filter element.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. By inserting or removing the filter element body into the filter element cavity in a direction offset from its own length direction, in the optimal case, that is, inserting or removing the filter element body into the filter element cavity in a direction perpendicular to its own length direction, the maximum range of movement is achieved. Only the diameter of the filter element body needs to be reserved to completely remove the filter element body from the filter element cavity. Furthermore, the ejection mechanism can eject the filter element body out of the filter element cavity. This design greatly improves the ease of replacing the filter element body in a confined space.

[0038] 2. The linkage mechanism enables the locking mechanism and the ejector to work together. Only by operating the locking mechanism, the locking mechanism can completely release the filter element body, and the ejector will push the filter element body out of the filter element cavity. After the ejector is completely separated from the filter element, the pin can be inserted into the slot to lock the filter element body. The linkage between the locking mechanism and the ejector mechanism further improves the ease of disassembling and assembling the filter element body.

[0039] 3. Adding an elastic element to the linkage has the following advantages: First, it improves the ease of locking the filter element body and ejecting the filter element body when removing the filter element body; second, it eliminates the need for unlocking and locking operations when installing a new filter element body, as the new filter element body can be directly pushed into the filter element cavity, greatly improving the ease of installing the new filter element body. Furthermore, the elastic element enhances the stability of the locking mechanism in locking the filter element body during the duration of the linkage.

[0040] 4. The locking and ejection functions are separated, allowing them to be executed and triggered at different times. This ensures that both the locking and ejection functions are fully implemented, improving the ease of disassembly and the stability of the locking mechanism. Attached Figure Description

[0041] Figure 1 This is a structural schematic diagram highlighting the filter element body in the embodiments of this application.

[0042] Figure 2 This is a schematic diagram of the structure highlighting the base in the embodiments of this application.

[0043] Figure 3 This is a schematic diagram of the framework in the embodiments of this application.

[0044] Figure 4 This is a schematic diagram of the structure highlighting the ejector hole in an embodiment of this application.

[0045] Figure 5 This is a schematic diagram highlighting the connecting cavity in an embodiment of this application.

[0046] Figure 6 This is an exploded view showing the guide groove in an embodiment of this application.

[0047] Figure 7 This is a schematic diagram highlighting the locking mechanism and the ejection mechanism in the embodiments of this application.

[0048] Figure 8 This is a partial cross-sectional view of the insert block fully inserted into the slot in an embodiment of this application.

[0049] Figure 9 This is a partial cross-sectional view of the handle and the lifting cavity in an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Filter element body; 11. Connector; 12. Slot; 121. Bevel; 13. Ejection groove; 131. Ejection surface; 14. Base; 2. Frame; 21. Main frame; 22. Fixing component; 221. Ejection hole; 23. Filter element cavity; 24. Bottom groove; 25. Connecting cavity; 26. Lifting cavity; 27. Guide groove; 28. Decorative cover; 29. ​​Spring seat; 3. Locking mechanism; 31. Handle; 32. Pin; 33. Guide rail; 4. Ejection mechanism; 41. Linkage component; 411. Linkage plate; 412. Connecting shaft; 42. Ejection component; 421. Ejection block; 422. Ejection protrusion; 43. Elastic component. Detailed Implementation

[0052] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0053] This application discloses a filter element.

[0054] Reference Figure 1 The filter element includes a filter element body 1, which is approximately cylindrical. Three connectors 11 are integrally formed on the side wall of the filter element body 1 for water inlet and outlet. The extension direction of the connectors 11 is perpendicular to the length direction of the filter element body 1. The filter element body 1 can be assembled and disassembled in a direction perpendicular to its own length direction.

[0055] Reference Figure 1 , Figure 2The filter element body 1 has two symmetrically arranged slots 12 on its side wall, located on either side of the connector 11. The filter element body 1 also has two symmetrically arranged ejector grooves 13 on its side wall, located on either side of the connector 11. The ejector grooves 13 are located on the side of the slots 12 closest to the connector 11. Both the slots 12 and the ejector grooves 13 are connected to one end face of the filter element body 1, and a base 14 is integrally formed on the other end face of the filter element body 1. The groove wall of the ejector groove 13 facing the connector 11 is the ejector surface 131, and an inclined surface 121 is formed between the groove wall of the slot 12 near the ejector groove 13 and the end face of the filter element body 1 connected to the slot 12.

[0056] The implementation principle of a filter element in this application embodiment is as follows: the filter element body 1 is installed along a direction perpendicular to its own length, so that the connector 11 can be installed simultaneously. The filter element body 1 is locked in place by inserting structures such as insert blocks and pins 32 into the slot 12. When removing the filter element, the locking of the filter element body 1 is first released, and then force is applied to the ejector surface 131 by structures such as push blocks and top blocks to move the filter element body 1 from the installation position, thereby removing the filter element body 1.

[0057] The filter element body 1, designed in this way, has several advantages. First, it allows for installation along a direction perpendicular to its length, minimizing the length of movement required for assembly and disassembly. Second, the locking structure is relatively simple. Third, the top surface 131 prevents slippage during removal, facilitating filter element replacement. Furthermore, the alignment of the connector 11 with the filter element body 1 creates a "7" shape, meaning the filter element is side-mounted. Devices matching side-mounted filter elements require a large opening for side mounting, making it easier to clean water flowing from the connector 11 and improving the safety of internal components.

[0058] This application also discloses a filter cartridge locking and removal device.

[0059] Reference Figure 2 , Figure 3 The filter element locking and removal device includes a frame 2 for mounting the filter element body 1, a locking mechanism 3 for locking the filter element body 1, and an ejection mechanism 4 for pushing the filter element body 1.

[0060] Reference Figures 2-4The frame 2 includes a main frame 21 and two symmetrically arranged fixing members 22, both of which are fixed to the main frame 21. A filter element cavity 23 is formed between the main frame 21 and the two fixing members 22, and an opening is formed in the side wall of the main frame 21 for the filter element cavity 23. The filter element cavity 23 extends along the length of the filter element body 1 and is used for inserting the filter element body 1 in a direction perpendicular to its length. Each fixing member 22 has a through-hole 221 that communicates with the filter element cavity 23.

[0061] Reference Figure 3 , Figure 5 A bottom groove 24 is formed on the bottom wall of the filter element cavity 23 for inserting the base 14. A connecting cavity 25 extending perpendicular to the length of the filter element body 1 is formed on the side wall of the filter element cavity 23 for inserting the connector 11. The fit between the connector 11 and the connecting cavity 25 restricts the movement of the filter element body 1 within the filter element cavity 23 along its length, improving the structural stability of the filter element body 1 after it is installed in the filter element cavity 23.

[0062] Reference Figure 6 The main frame 21 has a lifting cavity 26 on its side wall where the filter element cavity 23 is located. This lifting cavity 26 is situated on the side of the filter element cavity 23 away from the bottom groove 24 and communicates with both the filter element cavity 23 and the end face of the main frame 21 away from the bottom groove 24. Two symmetrically arranged guide grooves 27 are also provided on the end face of the main frame 21 away from the bottom groove 24. These guide grooves 27 extend along the direction of the filter element cavity 23 and are located on opposite sides of the filter element cavity 23. Both guide grooves 27 communicate with both the filter element cavity 23 and the lifting cavity 26. A decorative cover 28 is fixed to the main frame 21, concealing the openings formed by the lifting cavity 26 and the guide grooves 27 on the end face of the main frame 21.

[0063] Reference Figure 6 , Figure 7 The locking mechanism 3 includes a handle 31, two symmetrically arranged pins 32, and two symmetrically arranged guide rails 33. The handle 31 is D-shaped, with the two pins 32 located on either side of the handle 31 and between the two guide rails 33. The two pins 32 are integrally formed on the handle 31, and the two guide rails 33 are integrally formed on the adjacent pins 32.

[0064] Reference Figure 2 , Figure 6 , Figure 7 The handle 31 is slidably disposed in the lifting cavity 26 along the extension direction of the filter element cavity 23. The two pins 32 are respectively used to be inserted into different slots 12 of the filter element body 1. The two guide rails 33 are slidably disposed in different guide grooves 27 along the extension direction of the filter element cavity 23.

[0065] Reference Figure 3 , Figures 5-7 After inserting the base 14 into the bottom groove 24, installing the filter element body 1 into the filter element cavity 23, and inserting the connector 11 into the connecting cavity 25, the sliding handle 31 drives the two pins 32 to be inserted into different slots 12 on the filter element body 1. The pins 32 engage with the slots 12, thus preventing the filter element body 1 from moving out of the filter element cavity 23. To release the lock on the filter element body 1, slide the handle 31 to allow the pins 32 to move out of the slots 12. Since the direction of the locking force of the pins 32 on the filter element body 1 is basically perpendicular to the direction of disassembly and assembly, even if the filter element body 1 is subjected to the force of water hammer or other external impacts, it is not easy to detach from the filter element cavity 23, resulting in high structural stability.

[0066] Reference Figure 2 , Figure 7 The ejection mechanism 4 is used to push the filter element body 1 out of the filter element cavity 23. The ejection mechanism 4 includes a linkage 41, two ejection elements 42 and two elastic elements 43. The linkage 41 includes two linkage plates 411 and a connecting shaft 412 disposed between the two linkage plates 411. The connecting shaft 412 is fixedly connected to both linkage plates 411. One end of the linkage plate 411 is hinged to the handle 31.

[0067] Reference Figure 7 , Figure 8 The ejector 42 includes an ejector block 421 and an ejector protrusion 422 fixed on the ejector block 421. The ejector blocks 421 of the two ejector components 42 are respectively connected to different fixing members 22 and different linkage plates 411. One end of the ejector block 421 is hinged to the adjacent fixing member 22, and the other end of the ejector block 421 is hinged to the adjacent linkage plate 411. The ejector protrusion 422 is eccentrically disposed on the ejector block 421, that is, the ejector protrusion 422 is offset from each rotation axis on the ejector block 421. The ejector protrusion 422 can extend into the filter element cavity 23 through the adjacent ejector hole 221. The ejector protrusion 422 is used to abut against the filter element body 1 and to push the filter element body 1 out of the filter element cavity 23.

[0068] Reference Figure 6 , Figure 7 The main frame 21 has two integrally formed spring seats 29, which are located on the side of the connecting shaft 412 near the filter element cavity 23. The elastic element 43 is a tension spring, with one end hooked onto the connecting shaft 412 and the other end hooked onto one of the spring seats 29. The line coinciding with the direction of the force exerted by the elastic element 43 on the connecting shaft 412 is the force line.

[0069] Reference Figure 7 , Figure 8The first rotating shaft is formed by the linkage plate 411 hinged to the ejector block 421, and the second rotating shaft is formed by the linkage plate 411 hinged to the handle 31. When the pin 32 is fully inserted into the slot 12, the ejector protrusion 422 is located outside the filter element cavity 23; when the ejector protrusion 422 abuts against the filter element body 1, the pin 32 is completely located outside the slot 12.

[0070] Reference Figure 9 When the handle 31 can move to contact the wall of its own lifting cavity 26, and the pin 32 moves in the direction of moving out of the slot 12, the first rotating axis is located on the side of the force line closer to the second rotating axis, and the ejector protrusion 422 is located inside the filter element cavity 23. When the ejector protrusion 422 is located outside the filter element cavity 23, the first rotating axis is located on the side of the force line away from the second rotating axis. When the first rotating axis intersects the force line, the ejector protrusion 422 is located inside the filter element cavity 23, and the pin 32 is completely outside the slot 12, or the end of the pin 32 is located on the movement path of the inclined surface 121.

[0071] In other embodiments, the elastic element 43 may also be an elastic band, etc. Any method that can apply a force to drive the linkage plate 411 to rotate in different directions as the linkage plate 411 rotates is acceptable.

[0072] The implementation principle of the filter element locking and removal device in this embodiment is as follows: When replacing the filter element body 1, pulling the handle 31 causes the linkage 41 to rotate and drive the ejector 42 to rotate until the first rotating shaft intersects with the force line, and the ejector protrusion 422 contacts the filter element body 1. At this time, the pin 32 is completely outside the slot 12. Even if the pin 32 cannot be completely outside the slot 12 due to installation or manufacturing errors, the inclined surface 121 allows the end of the pin 32 to still move out of the slot 12 when it is on the moving path of the inclined surface 121. Continuing to pull the handle 31, the first rotating shaft moves to the side of the force line closer to the second rotating shaft. At this time, even if the handle 31 is released, the linkage 41 will continue to rotate under the action of the elastic element 43 until the handle 31 moves to contact the cavity wall of the lifting cavity 26. The ejector protrusion 422 continues to move into the filter element cavity 23 and continues to eject the filter element body 1 out of the filter element cavity 23, making it convenient for the staff to remove the filter element body 1 later. With this design, the unlocking operation can be performed with just one hand. First, pull the handle 31 with one hand, and then remove the filter body 1 with the other hand. The filter body 1 can be removed by moving only its own diameter, which greatly improves the ease of removing the filter body 1 in a confined space.

[0073] When installing a new filter element body 1, align the connector 11 with the connecting cavity 25, then insert the filter element body 1 into the filter element cavity 23. The filter element body 1 presses against the ejector protrusion 422. As the filter element body 1 continues to be inserted into the filter element cavity 23, the ejector 42 rotates, driving the linkage 41 to rotate, until the first rotation axis moves to the side where the force line is away from the second rotation axis. At this time, under the action of the elastic member 43, the linkage 41 continues to rotate, and the ejector 42 moves until the ejector protrusion 422 moves out of the filter element cavity 23, and the pin 32 moves into its insertion slot 12. Even if the filter element body 1 has not yet moved to the slot 12 and aligned with the pin 32, the pin 32 will still press against the filter element body 1. After the slot 12 and the pin 32 are aligned, the pin 32 will be inserted into the slot 12 under the action of the elastic member 43. With this setup, installing a new filter element body 1 is as simple as pushing it into the filter element cavity 23. The installation of the new filter element body 1 can be completed by simply moving its own diameter, which greatly improves the ease of installing the filter element body 1 in a confined space.

[0074] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A filter cartridge locking and removal device, characterized in that: The device includes a frame (2), a locking mechanism (3), and an ejection mechanism (4). The frame (2) has a filter element cavity (23) with an opening. The filter element cavity (23) is used to allow the filter element body (1) to be inserted in a direction offset from the length direction of the filter element body (1). The locking mechanism (3) is used to restrict the filter element body (1) from moving out of the filter element cavity (23). The ejection mechanism (4) is used to push the filter element body (1) out of the filter element cavity (23). The locking mechanism (3) is slidably disposed on the frame (2). The sliding direction of the locking mechanism (3) is offset from the direction in which the filter body (1) is inserted into the filter cavity (23). The locking mechanism (3) includes a pin (32), which is used to insert into the slot (12) on the filter body (1). The ejection mechanism (4) includes an ejection member (42) rotatably mounted on the frame (2) and a linkage member (41) for driving the ejection member (42) to rotate. The ejection member (42) includes an ejection protrusion (422) offset from the rotation axis of the ejection member (42). The ejection protrusion (422) is used to abut against the filter element body (1) and to push the filter element body (1) out of the filter element cavity (23). One end of the linkage (41) is hinged to the ejector (42), and the other end of the linkage (41) is hinged to the locking mechanism (3); When the pin (32) is fully inserted into the slot (12) on the filter body (1), the ejector protrusion (422) is located outside the filter cavity (23); When the protruding protrusion (422) abuts against the filter element body (1), the pin (32) is completely outside the slot (12) on the filter element body (1); the pin (32) can move in the direction of moving out of the slot (12) on the filter element body (1) until the locking mechanism (3) abuts against the frame (2); the linkage (41) is provided with an elastic element (43) for applying force to the linkage (41); The first rotating shaft is formed by the hinge of the linkage (41) on the ejector (42), and the second rotating shaft is formed by the hinge of the linkage (41) on the locking mechanism (3). The line that coincides with the direction of the force applied by the elastic member (43) to the linkage (41) is the force line. When the pin (32) moves toward the slot (12) on the filter body (1) until the locking mechanism (3) abuts against the frame (2), the pin (32) is completely outside the slot (12), the first rotating shaft is located on the side of the force line close to the second rotating shaft, and the ejector protrusion (422) is located inside the filter cavity (23). When the ejector protrusion (422) is located outside the filter element cavity (23), the first rotating shaft is located on the side of the force line away from the second rotating shaft.

2. The filter element locking and removal device according to claim 1, characterized in that: The locking mechanism (3) also includes a guide rail (33) connected to the pin (32), and a guide groove (27) is provided on the frame (2), and the guide rail (33) is slidably disposed in the guide groove (27).

3. The filter element locking and removal device according to claim 1, characterized in that: The locking mechanism (3) also includes a handle (31), and multiple pins (32) are provided, each pin (32) being connected to the handle (31).

4. A filter element, characterized in that: The filter cartridge cavity (23) for inserting into the filter cartridge locking and removal device of claim 1 includes a filter cartridge body (1) and a connector (11) connected to the filter cartridge body (1), wherein the extension direction of the connector (11) is consistent with the direction in which the filter cartridge body (1) is inserted into the filter cartridge cavity (23).

5. A filter element according to claim 4, characterized in that: The filter element body (1) is provided with a slot (12), and the extension direction of the slot (12) is offset from the direction in which the filter element body (1) is inserted into the filter element cavity (23).

6. A filter element according to claim 4, characterized in that: The filter body (1) has an ejection surface (131) on its side wall for contacting the ejection mechanism (4).

Images