Filter element replacement device and water purification equipment

Abstract

The utility model provides a filter element replacement device and water purification equipment. The filter element replacement device comprises a fixed cover, a button sliding block, a propping and pushing block and an elastic piece, a first groove matched with a locking block of the filter element is formed in the fixed cover; the button sliding block is arranged on the fixed cover in a sliding manner, and second grooves which are in one-to-one correspondence with the first grooves and are used for being matched with the locking blocks are formed in the button sliding block; the pushing block can be detachably connected with the push rod, and the push rod can drive the pushing block to push the button sliding block in an abutting mode, so that the button sliding block moves relative to the fixed cover, and the second groove and the first groove are right opposite or staggered. The elastic piece is connected with the abutting and pushing block and used for resetting the abutting and pushing block. By adopting the technical scheme, the possibility that the push rod and the pushing block are integrally formed and need to extend from the bottom to the top of the water purification equipment, so that the transmission connection difficulty is high and the push rod is easy to break during installation is reduced, and the matching degree of the push rod and the button sliding block and the convenience degree of replacement after the push rod is damaged are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, and more specifically, to a filter element replacement device and water purification equipment. Background Art

[0002] In order to effectively solve various diseases caused by excessive harmful substances in groundwater in many places, water purification equipment has been increasingly promoted and used in real life.

[0003] At present, when the cover of the existing water purification equipment is opened from the top to replace the filter element, the connection position of the filter element at the bottom cannot be clearly seen, which makes replacement extremely inconvenient. Therefore, existing manufacturers produce a filter element replacement device to facilitate the disassembly and assembly of the filter element. Specifically, the filter element replacement device includes a push rod and a locking member for locking and unlocking the filter element. The locking member is located at the bottom of the water purification device. The push rod extends from the top to the bottom of the water purification device and is used to drive the locking member to lock and unlock the filter element. The user can operate the disassembly and assembly of the filter element at the top of the water inlet device, thereby improving the convenience of replacing the filter element. However, the transmission connection between the push rod and the locking member in the existing filter element replacement device is difficult, and the degree of coordination between the two is poor, which makes it difficult to replace the push rod after it is damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a filter element replacement device and a water purification device to solve the technical problems in the prior art that the push rod and the locking member in the filter element replacement device are difficult to connect in transmission and the degree of coordination between the two is poor, resulting in difficulty in replacing the push rod after it is damaged.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, a filter element replacement device is provided, comprising:

[0007] A fixed cover, a button slider, a push block and an elastic member; the fixed cover is provided with a first groove for cooperating with the locking block of the filter element; the button slider is slidably arranged on the fixed cover, and the button slider is provided with a second groove which corresponds to the first groove one by one and is used to cooperate with the locking block; the push block can be detachably connected to the push rod, and the push rod can drive the push block to push the button slider, so that the button slider moves relative to the fixed cover, so that the second groove is opposite to or offset from the first groove; the elastic member is connected to the push block, and the elastic member is used to reset the push block.

[0008] By adopting the above technical solution, the push block and the push rod used to drive the button slider to slide relative to the fixed cover are detachably connected, thereby reducing the difficulty of transmission connection during installation and the possibility of easy damage due to the push rod and the push block being integrally formed and needing to extend from the bottom to the top of the water purification equipment. At the same time, the degree of coordination between the push rod, the push block and the button slider is improved, and the convenience of replacing the push rod after it is damaged is also improved.

[0009] In one embodiment, the filter element replacement device also includes a sleeve and a push rod, the sleeve is used to accommodate the filter element, the fixing cover is provided at the bottom of the sleeve, the button slider can move along the radial direction of the sleeve, the push rod extends along the axial direction of the sleeve from the top of the sleeve to the bottom of the sleeve, and the push rod can move along the axial direction of the sleeve to trigger the push block.

[0010] By adopting the above technical solution, the cooperation between the push rod and the push block can convert the axial movement of the push rod into the radial movement of the button slider, which is convenient for the user to operate the push rod at the top of the sleeve.

[0011] In one embodiment, the push rod is provided with a first matching hole for matching with the push block, the hole depth direction of the first matching hole is parallel to the axial direction of the sleeve, and the push block is also provided with a first matching column inserted in the first matching hole.

[0012] The adoption of the technical solution is beneficial to the plug-in fit between the push rod and the push block.

[0013] In one embodiment, a second matching hole is further provided on the hole wall of the first matching hole, and a second matching column inserted into the second matching hole is provided on the first matching column.

[0014] By adopting the above technical solution, the second matching column is used to be inserted into the second matching hole, so as to further strengthen the stability of the connection between the push rod and the push block.

[0015] In one embodiment, the fixed cover is also provided with a guide groove for guiding the push block, the guide groove is located on the side of the push block away from the push rod, the push block is provided with a guide column slidably arranged in the guide groove, the elastic member is sleeved on the guide column, and the two ends of the elastic member are respectively abutted against the bottom of the guide groove and the push block.

[0016] By adopting the above technical solution, the guide groove is used to guide the push block to improve the smoothness of the movement of the push block. In addition, it is also used to accommodate the guide column and the elastic member, so that the elastic member does not need to be directly connected to the push rod, which facilitates the disassembly and assembly of the push rod.

[0017] In one embodiment, a portion of the button slider close to the push block is provided with a protrusion, and the protrusion is provided with a first mating inclined surface, the first mating inclined surface forms an inclination angle with the moving direction of the button slider, and the push block is provided on a second mating inclined surface connected to the first mating inclined surface, and the moving direction of the push block is perpendicular to the moving direction of the button slider.

[0018] By adopting the above technical solution, it is convenient to convert the axial movement of the push rod into the radial movement of the button slider.

[0019] In one embodiment, the push block is in an umbrella shape, and the second matching inclined surface is formed on the circumferential surface of the push block.

[0020] By adopting the above technical solution, the reliability of the transmission connection between the push block and the button slider is improved.

[0021] In one embodiment, the fixing cover is provided with a first through hole for cooperating with the connecting head of the filter element, the first groove is located on the hole wall of the first through hole, the button slider is provided with a second through hole connected to the first through hole, and the second groove is located on the hole wall of the second through hole.

[0022] By adopting the above technical solution, the connection head and locking block of the filter element are facilitated to cooperate with the filter element replacement device.

[0023] In one embodiment, the fixing cover is provided with a plurality of the first grooves, and the plurality of the first grooves are arranged along the circumference of the first through hole; the button slider is provided with a plurality of the second grooves, and the plurality of the second grooves are arranged along the circumference of the second through hole.

[0024] By adopting the above technical solution, the stability of the filter element fixing is improved.

[0025] In a second aspect, a water purification device is provided, comprising a filter element and the above-mentioned filter element replacement device, wherein the filter element replacement device is used to replace the filter element.

[0026] By adopting the above technical solution, on the basis of having the advantages of the filter element replacement device of the above embodiment, the water purification device of this embodiment also has the advantage of high convenience in replacing the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a three-dimensional structural diagram of the filter element replacement device provided in an embodiment of the utility model.

[0029] Figure 2 It is an exploded view of the filter element replacement device provided in an embodiment of the utility model.

[0030] Figure 3 It is a three-dimensional structural diagram of a fixed cover, a button slider, a push block and an elastic member provided in an embodiment of the utility model, wherein the first groove is misaligned with the second groove.

[0031] Figure 4 It is a three-dimensional structural diagram of a fixed cover, a button slider, a push block and an elastic member provided in an embodiment of the utility model, wherein the first groove is directly opposite to the second groove.

[0032] Figure 5 It is a cross-sectional view of the filter element replacement device provided in an embodiment of the utility model.

[0033] Figure 6 yes Figure 5 Magnified view of point “A” in the figure.

[0034] The reference numerals in the figures are:

[0035] 100. Filter element replacement device;

[0036] 1. Fixed cover; 2. Button slider; 3. Push block; 4. Elastic part; 5. Push rod; 6. Sleeve; 7. Filter element;

[0037] 11. First groove; 12. Guide groove; 13. First through hole; 21. Second groove; 22. Protrusion; 23. Second through hole; 31. First matching column; 32. Second matching column; 33. Guide column; 34. Second matching inclined surface; 51. First matching hole; 52. Second matching hole; 71. Connector; 72. Locking block; 221. First matching inclined surface. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate that a device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The following is a more detailed description of the specific implementation of the present utility model in conjunction with specific embodiments:

[0042] like Figure 1 and Figure 2 As shown, a filter element replacement device 100 provided by an embodiment of the utility model is used to be installed in a water purification device to improve the convenience of replacing the filter element 7; specifically, the existing water purification device includes a filter element 7, wherein the connection head 71 of the filter element 7 is inserted into the water purification device downward, and the connection head 71 is located at the bottom of the water purification device. When the filter element 7 needs to be replaced, the user opens the cover from the top of the water purification device, and pulls out the filter element 7 from the top of the water purification device, and the filter element 7 replacement device is arranged at the bottom of the water purification device, which is conducive to the fixation of the filter element 7. At the same time, the push rod 5 of the filter element 7 replacement device can extend from the bottom of the water purification device to the top, which is convenient for the user's operation; the following is explained through a specific implementation method:

[0043] Please also read Figure 3 and Figure 4 The filter element replacement device 100 of this embodiment includes:

[0044] The fixing cover 1, the button slider 2, the push block 3 and the elastic member 4; the fixing cover 1 is provided with a first groove 11 for cooperating with the locking block 72 of the filter element 7; the button slider 2 is slidably arranged on the fixing cover 1, and the button slider 2 is provided with a second groove 21 which corresponds to the first groove 11 and is used to cooperate with the locking block 72; the push block 3 can be detachably connected with the push rod 5, and the push rod 5 can drive the push block 3 to push the button slider 2, so that the button slider 2 moves relative to the fixing cover 1, so that the second groove 21 is directly opposite to the first groove 11 (such as Figure 4 as shown) or misplaced (as shown Figure 3 The elastic member 4 is connected to the push block 3, and the elastic member 4 is used to reset the push block 3.

[0045] Here, it can be understood that the fixing cover 1 is used to be fixed in the water purification equipment, and the fixing cover 1 is provided with a first groove 11, and the first groove 11 is used to cooperate with the locking block 72 of the filter element 7. Specifically, the filter element 7 is provided with a connecting head 71 and a locking block 72, and the connecting head 71 is used to be connected to the bottom of the water purification equipment, and the locking block 72 is used to be connected to the filter element replacement device 100 located at the bottom, and the locking block 72 can enter the first groove 11; the button slider 2 is provided on the fixing cover 1 and can slide relative to the fixing cover 1, and the button slider 2 is provided with a second groove 21, and the second groove 21 corresponds to the first groove 11 one by one, and the second groove 21 is also used to cooperate with the locking block 72. Specifically, when the second groove 21 is opposite to the first groove 11, the locking block 72 can be inserted into the second groove 21 and the first groove 11 in sequence as the filter element 7 is inserted. In the embodiment of the present invention, the second groove 21 is misaligned with the first groove 11, so that the locking block 72 cannot be detached from the second groove 21 and the first groove 11, thereby fixing the filter element 7; the push block 3 can be detachably connected to the push rod 5, and the push rod 5 can drive the push block 3 to push the button slider 2, so that the button slider 2 moves relative to the fixed cover 1, so that the second groove 21 is opposite to or misaligned with the first groove 11; the elastic member 4 is connected to the push block 3, so that the push block 3 can be reset under the elastic force of the elastic member 4, specifically, the push rod 5 applies a force on the push block 3, so that the push block 3 can push the button slider 2 to move relative to the fixed cover 1, so that the second groove 21 is opposite to or misaligned with the first groove 11, and when the push rod 5 cancels the force applied to the push block 3, the elastic force of the elastic member 4 can drive the push block 3 to return to its original position.

[0046] It needs to be further explained that when the button slider 2 itself has a maintaining structure to keep the first groove 11 and the second groove 21 misaligned, the button slider 2 keeps the filter element 7 locked without being affected by external forces, and the maintaining structure includes but is not limited to an elastic structure. The user operates the push rod 5 to apply a force to the push block 3 to drive the second groove 21 to face the first groove 11. The user operates the push rod 5 to unlock the filter element 7, which is convenient for the user to remove the filter element 7.

[0047] By adopting the above technical solution, the push block 3 used to drive the button slider 2 to slide relative to the fixed cover 1 is detachably connected to the push rod 5, thereby reducing the difficulty of transmission connection during installation and the possibility of easy damage due to the push rod 5 and the push block 3 being integrally formed and needing to extend from the bottom to the top of the water purification equipment. At the same time, the degree of coordination between the push rod 5, the push block 3 and the button slider 2 is improved, and the convenience of replacing the push rod 5 after it is damaged is also improved.

[0048] Please also read Figure 5 and Figure 6In one embodiment, the filter element replacement device 100 also includes a sleeve 6 and a push rod 5. The sleeve 6 is used to accommodate the filter element 7. A fixed cover 1 is provided at the bottom of the sleeve 6. The button slider 2 can move along the radial direction of the sleeve 6. The push rod 5 extends from the top of the sleeve 6 to the bottom of the sleeve 6 along the axial direction of the sleeve 6. The push rod 5 can move along the axial direction of the sleeve 6 to trigger the push block 3.

[0049] Here, it can be understood that the sleeve 6 is used to accommodate the filter element 7, and the internal shape and size of the sleeve 6 match the shape and size of the filter element 7, so that the filter element 7 can be accommodated inside the sleeve 6; the push rod 5 is provided on the sleeve 6, and the push rod 5 extends from the top of the sleeve 6 to the bottom of the sleeve 6 along the axial direction of the sleeve 6, so that the user can operate the push rod 5 at the top of the sleeve 6, and the push rod 5 applies a force to the push block 3 at the bottom of the sleeve 6, so that the push block 3 can push the button slider 2 to move relative to the fixed cover 1.

[0050] It needs to be further explained that the button slider 2 can move along the radial direction of the sleeve 6 , and the push rod 5 can move along the axial direction of the sleeve 6 , that is, the user can convert the axial movement of the push rod 5 into the radial movement of the button slider 2 .

[0051] By adopting the above technical solution, the cooperation between the push rod 5 and the push block 3 can convert the axial movement of the push rod 5 into the radial movement of the button slider 2, which is convenient for the user to operate the push rod 5 at the top of the sleeve 6.

[0052] In one embodiment, the push rod 5 is provided with a first matching hole 51 for matching with the push block 3 , the hole depth direction of the first matching hole 51 is parallel to the axial direction of the sleeve 6 , and the push block 3 is also provided with a first matching column 31 inserted in the first matching hole 51 .

[0053] Here, it can be understood that the push rod 5 and the push block 3 are detachably connected through the cooperation between the first matching column 31 and the first matching hole 51; the push rod 5 is provided with a first matching hole 51, and the hole depth direction of the first matching hole 51 is parallel to the axial direction of the sleeve 6, so that the push rod 5 can be plugged and matched with the first matching column 31 of the push block 3 along the axial direction of the sleeve 6.

[0054] The adoption of the above technical solution facilitates the plug-in fit between the push rod 5 and the push block 3 .

[0055] Furthermore, the first matching column 31 and the first matching hole 51 are interference fit, and the force generated by the interference fit between the two enables the push rod 5 to be connected to the push block 3 .

[0056] In one embodiment, a second matching hole 52 is further provided on the hole wall of the first matching hole 51 , and a second matching column 32 inserted into the second matching hole 52 is provided on the first matching column 31 .

[0057] By adopting the above technical solution, the second matching column 32 is used to be inserted into the second matching hole 52 , so as to further strengthen the stability of the connection between the push rod 5 and the push block 3 .

[0058] In one embodiment, the fixed cover 1 is further provided with a guide groove 12 for guiding the push block 3, the guide groove 12 is located on the side of the push block 3 away from the push rod 5, the push block 3 is provided with a guide column 33 slidably arranged in the guide groove 12, the elastic member 4 is sleeved on the guide column 33, and the two ends of the elastic member 4 are respectively abutted against the bottom of the guide groove 12 and the push block 3.

[0059] Here, it can be understood that a guide groove 12 is provided on the fixed cover 1, and the guide groove 12 is used to guide the push block 3. The guide groove 12 is located on the side of the push block 3 away from the push rod 5, that is, the guide groove 12 is located at the bottom of the fixed cover 1; the push block 3 is provided with a guide column 33, and the guide column 33 is slidably arranged in the guide groove 12, and the elastic member 4 is sleeved on the guide column 33, and the two ends of the elastic member 4 are respectively abutted against the bottom of the guide groove 12 and the push block 3.

[0060] By adopting the above technical solution, the guide groove 12 is used to guide the push block 3 to improve the smoothness of the movement of the push block 3. In addition, it is also used to accommodate the guide column 33 and the elastic member 4, so that the elastic member 4 does not need to be directly connected to the push rod 5, which facilitates the disassembly and assembly of the push rod 5.

[0061] In one embodiment, a portion of the button slider 2 close to the push block 3 is provided with a protrusion 22, and the protrusion 22 is provided with a first mating bevel 221, and the first mating bevel 221 forms an inclination angle with the moving direction of the button slider 2, and the push block 3 is provided on a second mating bevel 34 connected to the first mating bevel 221, and the moving direction of the push block 3 is perpendicular to the moving direction of the button slider 2.

[0062] Here, it can be understood that the first mating bevel 221 of the protrusion 22 forms an inclination angle with the moving direction of the button slider 2, and the inclination angle ranges from 0° to 90°, preferably 45°. The second mating bevel 34 of the push block 3 is connected to the first mating bevel 221, and the inclination angle of the second mating bevel 34 is complementary to the inclination angle of the first mating bevel 221.

[0063] By adopting the above technical solution, it is convenient to convert the axial movement of the push rod 5 into the radial movement of the button slider 2.

[0064] In one embodiment, the push block 3 is in an umbrella shape, and the second matching inclined surface 34 is formed on the circumferential surface of the push block 3 .

[0065] Here, it can be understood that the second mating bevel 34 is located on the circumferential surface of the push block 3. Even if there is a slight misalignment between the push block 3 and the protrusion 22 of the button slider 2, the protrusion 22 of the button slider 2 can be ensured to be against the second mating bevel 34, thereby ensuring the reliability of the transmission connection between the two.

[0066] By adopting the above technical solution, the reliability of the transmission connection between the push block 3 and the button slider 2 is improved.

[0067] Please refer again Figure 3 and Figure 4 In one embodiment, the fixing cover 1 is provided with a first through hole 13 for cooperating with the connecting head 71 of the filter element 7, the first groove 11 is located on the hole wall of the first through hole 13, the button slider 2 is provided with a second through hole 23 connected with the first through hole 13, and the second groove 21 is located on the hole wall of the second through hole 23.

[0068] Here, it can be understood that the fixing cover 1 is provided with a first through hole 13, the first through hole 13 is used to cooperate with the connecting head 71 of the filter element 7, the first groove 11 is located on the hole wall of the first through hole 13, and the button slider 2 is provided with a second through hole 23, the second through hole 23 is connected to the first through hole 13, the second through hole 23 is also used for the connecting head 71 to cooperate, and the second groove 21 is located on the hole wall of the second through hole 23.

[0069] By adopting the above technical solution, the connection head 71 and the locking block 72 of the filter element 7 are facilitated to cooperate with the filter element replacement device 100.

[0070] In one embodiment, the fixed cover 1 is provided with a plurality of first grooves 11 arranged along the circumference of the first through hole 13 ; the button slider 2 is provided with a plurality of second grooves 21 arranged along the circumference of the second through hole 23 .

[0071] Here, it can be understood that the number and position of the first grooves 11 and the second grooves 21 correspond to the number and position of the locking blocks 72 of the filter element 7 .

[0072] By adopting the above technical solution, the stability of fixing the filter element 7 is improved.

[0073] In a second aspect, a water purification device is provided, comprising a filter element 7 and the above-mentioned filter element replacement device 100 , wherein the filter element replacement device 100 is used to replace the filter element 7 .

[0074] By adopting the above technical solution, on the basis of having the advantages of the filter element replacement device 100 of the above embodiment, the water purification device of this embodiment also has the advantage of high convenience in replacing the filter element 7.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter element replacement device, characterized in that: include: A fixed cover, a button slider, a push block and an elastic member; the fixed cover is provided with a first groove for cooperating with the locking block of the filter element; the button slider is slidably arranged on the fixed cover, and the button slider is provided with a second groove which corresponds to the first groove one by one and is used to cooperate with the locking block; the push block can be detachably connected to the push rod, and the push rod can drive the push block to push the button slider, so that the button slider moves relative to the fixed cover, so that the second groove is opposite to or offset from the first groove; the elastic member is connected to the push block, and the elastic member is used to reset the push block.

2. The filter element replacement device according to claim 1, characterized in that: The filter element replacement device also includes a sleeve and a push rod, the sleeve is used to accommodate the filter element, the fixing cover is provided at the bottom of the sleeve, the button slider can move along the radial direction of the sleeve, the push rod extends along the axial direction of the sleeve from the top of the sleeve to the bottom of the sleeve, and the push rod can move along the axial direction of the sleeve to trigger the push block.

3. The filter element replacement device according to claim 2, characterized in that: The push rod is provided with a first matching hole for matching with the push block, the hole depth direction of the first matching hole is parallel to the axial direction of the sleeve, and the push block is also provided with a first matching column inserted in the first matching hole.

4. The filter element replacement device according to claim 3, characterized in that: A second matching hole is also provided on the hole wall of the first matching hole, and a second matching column inserted into the second matching hole is provided on the first matching column.

5. The filter element replacement device according to claim 2, characterized in that: The fixed cover is also provided with a guide groove for guiding the push block, the guide groove is located on the side of the push block away from the push rod, the push block is provided with a guide column slidably arranged in the guide groove, the elastic member is sleeved on the guide column, and the two ends of the elastic member are respectively in contact with the bottom of the guide groove and the push block.

6. The filter element replacement device according to claim 1, characterized in that: A protrusion is provided on the portion of the button slider close to the push block, and the protrusion is provided with a first mating inclined surface, the first mating inclined surface forms an inclination angle with the moving direction of the button slider, the push block is provided on a second mating inclined surface connected to the first mating inclined surface, and the moving direction of the push block is perpendicular to the moving direction of the button slider.

7. The filter element replacement device according to claim 6, characterized in that: The push block is in an umbrella shape, and the second matching inclined surface is formed on the circumferential surface of the push block.

8. The filter element replacement device according to claim 1, characterized in that: The fixing cover is provided with a first through hole for cooperating with the connector of the filter element, the first groove is located on the hole wall of the first through hole, the button slider is provided with a second through hole connected with the first through hole, and the second groove is located on the hole wall of the second through hole.

9. The filter element replacement device according to claim 8, characterized in that: The fixed cover is provided with a plurality of the first grooves, which are arranged along the circumference of the first through hole; the button slider is provided with a plurality of the second grooves, which are arranged along the circumference of the second through hole.

10. A water purification device, characterized in that: It comprises a filter element and a filter element replacement device according to any one of claims 1 to 9, wherein the filter element replacement device is used to replace the filter element.

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