A filter and a lid for a filter

Abstract

The application relates to a filter and a cover for the filter. The cover comprises a main body and a first operating member, the main body is rotatable around a first axis, the first operating member is pivotally connected to the main body and is switchable between a first position and a second position; when the first operating member is pivoted to the first position, the first operating member can be forced to drive the main body to rotate around the first axis. The first operating member prolongs the force arm for driving the cover to rotate, an operator can apply force to the first operating member to drive the main body to rotate around the first axis, and then the cover can be screwed or unscrewed, and the force required by the operator for screwing or unscrewing the cover is saved by driving the main body to rotate through the first operating member.

Description

Technical Field

[0001] This application relates to the field of filter technology, and in particular to a filter and a cover for the filter. Background Technology

[0002] Above-ground swimming pools, distinct from traditional underground pools, are popular due to their portability, ease of installation and storage. They are equipped with various accessories, including filters that circulate and remove impurities from the water. Pool water is piped to the filter, filtered, and then pumped back into the pool by the filter's pump.

[0003] Traditional filters for inshore swimming pools require frequent filter replacement or cleaning, especially in windy and dusty environments where replacement or cleaning may occur every few hours. This necessitates frequent disassembly and tightening of the pump cover to remove or insert the filter. Traditional inshore swimming pool filters typically use a threaded connection to secure the pump cover to the pump body. However, this structure has a significant drawback in practical use: when the filter is in operation for extended periods, the threaded connection between the pump cover and the pump body generates considerable tension due to continuous friction and pool water pressure, making it difficult for users to loosen or tighten the pump cover. Utility Model Content

[0004] Therefore, it is necessary to provide a filter and a cover for the filter to address the problem that the cover of the filter in the above-ground swimming pool is difficult to loosen or tighten.

[0005] First, this application provides a cover for a filter and a pump body for screwing into the filter. The cover includes: a body rotatable about a first axis; a first operating member pivotally connected to the body and switchable between a first position and a second position; when the first operating member is pivoted to the first position, the first operating member can be forcefully driven to rotate the body about the first axis.

[0006] In one embodiment, the body is provided with a receiving groove; when the first operating member is pivoted to the second position, at least a portion of the first operating member is received in the receiving groove.

[0007] In one embodiment, the main body is provided with an exhaust structure, which covers the exhaust structure when the first operating member is pivoted to the second position.

[0008] In one embodiment, the receiving groove has a side wall and a bottom wall, and the exhaust structure is disposed on the side wall or the bottom wall.

[0009] In one embodiment, the body is provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion being spaced apart to form the receiving groove.

[0010] In one embodiment, when the first operating member is in the second position, the first operating member is detachably snapped onto the body.

[0011] In one embodiment, the first operating member is pivotally connected to a side edge of the body, the body being provided with a first stop portion, which abuts against the first operating member when the first operating member is in the first position to restrict the first operating member from rotating in the direction of switching from the second position to the first position.

[0012] In one embodiment, when the first actuating member is located at the first position and the first actuating member has a tendency to pivot in the direction of switching from the second position to the first position, the first actuating member drives the body to rotate about the first axis in the first direction.

[0013] In one embodiment, the cover further includes a second operating member pivotally connected to a side edge of the body and switchable between a third position and a fourth position; when the second operating member is in the third position and has a tendency to pivot in a direction from the fourth position to the third position, the second operating member drives the body to rotate about a first axis in the opposite direction to the first direction.

[0014] Second, this application also provides a cover for a filter, for screwing onto a pump body of the filter, the cover comprising: a body rotatable about a first axis; an operating member detachably connected to the body; wherein the body has a slot, and when the operating member is connected to the body, at least a portion of the operating member is located within the slot, the sidewall of the slot abuts against the operating member to restrict the rotation of the operating member relative to the body, and to allow the first operating member to be subjected to force to drive the body to rotate about the first axis.

[0015] Third, this application also provides a cover for a filter, for screwing onto a pump body of the filter. The cover includes: a body rotatable about a first axis; and an operating member detachably connected to the body. The body has a male connector with a toothed structure, and the operating member has a female connector with a toothed structure. When the operating member is connected to the body, the female connector engages with the male connector to restrict the rotation of the operating member relative to the body and to allow the first operating member to be subjected to force to drive the body to rotate about the first axis.

[0016] Fourth, this application also provides a filter including a pump body, the filter further including the aforementioned cover, the cover being removably mounted on the pump body by screwing.

[0017] The cover for the filter described in the first point of this application is provided with a first operating member. An operator can apply force to the first operating member to drive the main body to rotate around a first axis, thereby tightening or loosening the cover. The first operating member extends the lever arm for driving the cover to rotate, saving the operator the effort required to tighten or loosen the cover. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the filter structure of this application.

[0019] Figure 2 This is an exploded view of the filter in this application.

[0020] Figure 3 This is an exploded view of the lid of the first embodiment.

[0021] Figure 4 This is a schematic diagram of the lid according to the first embodiment, with the first operating member in the first position.

[0022] Figure 5 This is a schematic diagram of the lid in the second embodiment, where both the first and second operating members are in the second position.

[0023] Figure 6 for Figure 5 A diagram from another angle.

[0024] Figure 7 This is a schematic diagram of the lid in the second embodiment, where both the first operating member and the second operating member are in the first position.

[0025] Figure 8 for Figure 7 A diagram from another angle.

[0026] Figure 9 This is a schematic diagram of the lid according to the third embodiment.

[0027] Figure 10 This is a schematic diagram showing the lid body and the first operating member in a separated state according to the third embodiment.

[0028] Figure 11 This is a schematic diagram of the lid according to the fourth embodiment.

[0029] Figure 12 This is a schematic diagram of the first operating component and the main body of the lid in the fourth embodiment when they are separated.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Cover; 20. Pump body; 21. First accommodating space; 22. Water inlet; 23. Water outlet; 30. Base; 31. First screw hole; 40. Water pump; 41. Water inlet; 42. Water outlet; 50. Filter element; 51. Through hole; 110. Main body; 1101. First protrusion; 1102. Second protrusion; 111. Accommodating groove; 1111. Side wall; 1112. Bottom wall; 112. Exhaust structure; 1121. Exhaust hole; 1122. Button; 113. Fastener; 114. Mounting part; 1141. Third protrusion; 1142. Fourth protrusion 115. Protrusion; 1151. First stop; 1152. Second edge; 1153. Third edge; 1154. Fourth edge; 116. Second stop; 117. Slot; 118. Third stop; 119. Male connection; 120. First operating member; 121. Pivot; 122. First surface; 123. Second surface; 124. Third surface; 125. Fourth surface; 126. Female latch; 127. Insertion part; 128. Handle; 129. Female connection; 1291. Receiving hole; 130. Second operating member. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the filter structure according to one embodiment of this application is shown. Figure 2 An exploded view of the filter is shown. One embodiment of the filter provided in this application includes components such as a cover 10, a pump body 20, a base 30, a water pump 40, and a filter element 50.

[0039] The base 30 can fix the filter in a preset working position. Optionally, the base 30 in this application is provided with a first screw hole 31. The first screw hole 31 is used to install a ground nail to fix the base 30 to the ground at the working position.

[0040] The pump body 20 is approximately cylindrical and is mounted on the base 30, forming a first cylindrical receiving space 21 to accommodate the filter element 50. Alternatively, the pump body 20 can be triangular, quadrangular, or other multi-faceted tubular, forming a roughly triangular, quadrangular, or other multi-faceted receiving space with the base 30; this application does not impose any limitations on this. In some other embodiments, the pump body 20 may also be integrally formed with the base 30.

[0041] The pump body 20 is provided with an inlet 22 and an outlet 23. Unfiltered liquid enters the first accommodating space 21 through the inlet 22. The water pump 40 is mounted on the base 30 and located within the first accommodating space 21. The top of the water pump 40 is provided with an inlet 41 for receiving filtered liquid. The water pump 40 is also provided with an outlet 42, which is in fluid communication with the outlet 23.

[0042] The filter element 50 is also located within the first accommodating space 21 and is mounted on the water pump 40. The filter element 50 has a through hole 51, which is in fluid communication with the water inlet 41.

[0043] When the water pump 40 is working, the fluid flow process is as follows: the unfiltered liquid enters the first accommodating space 21 through the water inlet 22, then enters the through hole 51 after being filtered by the filter element 50, and then flows to the water inlet 41 and the water outlet 42 in sequence, and finally flows out of the filter through the water outlet 23.

[0044] The cover 10 is detachably attached to the upper edge of the pump body 20. When the cover 10 is attached to the upper edge of the pump body 20, it can close the first accommodating space 21. In this embodiment, the inner side of the cover 10 is provided with an internal thread, which can be threaded to the upper edge of the pump body 20. Therefore, the operator can tighten the cover 10 around the first axis X1-X1 along the first direction D1, or loosen it around the first axis X1-X1 along the second direction D2 to remove the cover 10, so as to replace the filter element 50 in the first accommodating space 21 and check the filtration status of the fluid in the first accommodating space 21.

[0045] like Figure 2As shown, if the cover 10 is viewed from a top-down angle, the first direction D1 around the first axis X1-X1 is clockwise, and the second direction D2 around the first axis X1-X1 is counterclockwise. Optionally, in some other embodiments, the first direction D1 around the first axis X1-X1 may be counterclockwise, and the second direction D2 around the first axis X1-X1 may be clockwise.

[0046] The first operating component 120 is connected to the cover 10, such as Figure 4 , Figure 7 , Figure 9 and Figure 11 As shown, when the first operating member 120 is subjected to force, the first operating member 120 can drive the cover 10 to rotate around the first axis X1-X1. Understandably, the first operating member 120 extends the lever arm that drives the cover 10 to rotate, saving the force required for the operator to rotate the cover 10.

[0047] Similarly, the directions of the first direction D1, the second direction D2, the third direction D3, and the fourth direction D4 described in this application are all exemplary as shown in the pictures, and do not mean that the first direction D1, the second direction D2, the third direction D3, and the fourth direction D4 are only in the form shown in the pictures.

[0048] refer to Figure 3 The cover 10 provided in the first embodiment of this application includes a main body 110 and a first operating member 120, wherein the first operating member 120 is pivotally connected to the main body 110.

[0049] The main body 110 is approximately disk-shaped. (Combined) Figure 2 It can be seen that the main body 110 is located on the top of the pump body 20.

[0050] Please also refer to Figure 3 and Figure 4 The top side of the main body 110 is provided with a first protrusion 1101 and a second protrusion 1102. The first protrusion 1101 and the second protrusion 1102 are spaced apart, and a receiving groove 111 is formed between the first protrusion 1101 and the second protrusion 1102. In this embodiment, both ends of the receiving groove 111 are open in the extending direction of the receiving groove 111. In some other embodiments, the receiving groove 111 may also be configured such that one end is open and the other end is closed, and this application does not limit this.

[0051] In this embodiment, the receiving groove 111 has two side walls 1111 and a bottom wall 1112. The two side walls 1111 are arranged opposite to each other and are respectively connected to the two long side edges of the bottom wall 1112. In some other embodiments, the connection between the bottom wall 1112 and the two side walls 1111 can also be smooth, that is, the receiving groove 111 has only one inner wall, which is formed by the combination of the bottom wall 1112 and the two side walls 1111.

[0052] In this embodiment, the first protrusion 1101 and the second protrusion 1102 are integrally formed with the main body 110. Alternatively, the main body 110 may be integrally formed with one of the first protrusion 1101 and the second protrusion 1102, while the other may be connected by bonding, welding, or other methods. Furthermore, the main body 110 may be connected to both the first protrusion 1101 and the second protrusion 1102 by bonding, welding, or other methods. This application does not limit this to any particular method.

[0053] Please refer to Figure 1 and Figure 2 The first operating member 120 is disposed within the receiving groove 111. A pivot 121 extends along the second axis X2-X2 and passes through the first protrusion 1101, the first operating member 120, and the second protrusion 1102, allowing the first operating member 120 to pivot about the second axis X2-X2. The first operating member 120 can... Figure 4 The first position shown and Figure 1 Switching between the second positions shown. It should be understood that in some other embodiments, the pivot mounting hole may also be located at the end of the first protrusion 1101, the first operating member 120, and the second protrusion 1102 away from the water outlet 23, or it may not be limited to being located at the end, but may be located at other positions.

[0054] refer to Figure 4 At this point, the first operating member 120 is in the first position, with most of it located outside the receiving groove 111. If the operator needs to tighten the cover 10, they can grasp the portion of the first operating member 120 outside the receiving groove 111 and rotate it around the first axis X1-X1 along the first direction D1. Understandably, the first operating member 120 can drive the main body 110 to rotate around the first axis X1-X1 along the first direction D1. Compared to gripping the outer edge of the main body 110 to tighten the cover 10, the first operating member 120 extends the lever arm, saving the operator the effort required. If the operator needs to loosen the cover 10, they can also grasp the portion of the first operating member 120 outside the receiving groove 111 and rotate it around the first axis X1-X1 along the second direction D2.

[0055] Continue to refer to Figure 4By pivoting the first operating member 120 about the second axis X2-X2 along a third direction D3, the first operating member 120 can be switched from a first position to a second position. It can be understood that by pivoting the first operating member 120 about the second axis X2-X2 along a fourth direction D4, the first operating member 120 can be switched from a second position to a first position. In this embodiment, the pivoting angle required for the first operating member 120 to switch between the first and second positions is 180 degrees. In some other embodiments, this angle is not limited to 180 degrees.

[0056] like Figure 1 As shown, when the first operating member 120 is in the second position, the entire first operating member 120 is located within the receiving groove 111, reducing the space occupied by the cover 10. Of course, in some other embodiments, the first operating member 120 may also have a longer length, so that only a portion of the first operating member 120 is located within the receiving groove 111 when it is in the second position.

[0057] Please refer to this as well. Figure 1 , Figure 3 and Figure 4 The first operating member 120 has a first surface 122, a second surface 123, a third surface 124, and a fourth surface 125. When the first operating member 120 is in the second position, the first surface 122 is located on the top side of the first operating member 120, the second surface 123 is located on the bottom side of the first operating member 120 and abuts against the bottom wall 1112, and the third surface 124 and the fourth surface 125 are respectively opposite to the two side walls 1111 of the receiving groove 111. It should be noted that the surfaces of the first operating member 120 are not necessarily planar; for example, the second surface 123 is composed of the edges of multiple sheet-like structures.

[0058] like Figure 3 and Figure 4 As shown, the first operating member 120 is provided with a male fastener 113. In this embodiment, the male fastener 113 is located on the second surface 123. The main body 110 is provided with a female fastener 126, which is located on the bottom wall 1112. When the first operating member 120 is in the second position, the male fastener 113 and the female fastener 126 are detachably fastened together, preventing the first operating member 120 from accidentally loosening and pivoting away from the second position. In this embodiment, the male fastener 113 and the female fastener 126 form a cantilevered fastener.

[0059] In some other embodiments, the male fastener 113 may be disposed on one of the third surface 124 and the fourth surface 125, and the female fastener 126 may be disposed on one of the two side walls 1111. Alternatively, there may be two male fasteners 113 and two female fasteners 126, with the two male fasteners 113 disposed on the third surface 124 and the fourth surface 125, and the two female fasteners 126 disposed on the two side walls 1111. Or, there may be three male fasteners 113 and three female fasteners 126, with the three male fasteners 113 disposed on the second surface 123, the third surface 124, and the fourth surface 125, and the three female fasteners 126 disposed on the two side walls 1111 and the bottom wall 1112.

[0060] The cover 10 described in this embodiment also includes an exhaust structure 112, which includes an exhaust port 1121 and a button 1122 disposed within the exhaust port 1121. The button 1122 is connected to a seal (not shown) located between the filter element 50 and the main body 110. When the button 1122 is pressed, the seal moves downward and disengages from the main body 110, forming a gap for exhaust, allowing gas in the first accommodating space 21 to be discharged upward through the gap into the exhaust port 1121, and then discharged upward through the gap between the button 1122 and the inner wall of the exhaust port 1121. This is prior art and will not be described in detail here.

[0061] The vent 1121 is located on the bottom wall 1112 of the receiving groove 111, and the button 1122 is disposed within the vent 1121. When the first operating member 120 is in the second position, the second surface 123 is disposed opposite to the vent 1121 and the button 1122. That is, the first operating member 120 covers the vent 1121 and the button 1122, thereby preventing impurities from entering the gap between the vent 1121 and the button 1122 to avoid blockage or contamination.

[0062] In some other embodiments, the vent 1121 may also be provided on the side wall 1111 of the receiving groove 111. When the first operating member 120 is in the second position, the third surface 124 or the fourth surface 125 is disposed opposite to the vent 1121 and the button 1122. In this way, the first operating member 120 can also cover the vent 1121 and the button 1122.

[0063] The cover 10 provided in the second embodiment of this application is as follows: Figures 5-8 As shown. Unlike the first embodiment, the first operating member 120 is pivotally connected to the side edge of the body 110.

[0064] refer to Figure 5Specifically, the side edge of the main body 110 is provided with a mounting portion 114, which includes a third protrusion 1141 and a fourth protrusion 1142. Both the third protrusion 1141 and the fourth protrusion 1142 protrude in a direction away from the first axis X1-X1, and the third protrusion 1141 and the fourth protrusion 1142 are spaced apart in a direction parallel to the first axis X1-X1. One end of the first operating member 120 is disposed between the third protrusion 1141 and the fourth protrusion 1142.

[0065] refer to Figure 6 The pivot 121 extends along the second axis X2-X2 and passes through the third protrusion 1141, the first operating member 120, and the fourth protrusion 1142, so that the first operating member 120 can pivot about the second axis X2-X2.

[0066] like Figure 7 As shown, the first operating member 120 is in the first position. If the operator needs to tighten the cap 10, they can grasp the first operating member 120 and rotate it around the first axis X1-X1 along the first direction D1. Understandably, the first operating member 120 can drive the main body 110 to rotate around the first axis X1-X1 along the first direction D1. Compared to gripping the outer edge of the main body 110 to tighten the cap 10, the first operating member 120 extends the lever arm, saving the operator the effort required.

[0067] like Figure 6 As shown, the first operating element 120 is in the second position at this time. The first operating element 120 is approximately elongated arc-shaped, and its curvature is suitable for matching the peripheral edge of the main body 110. This means that when the first operating element 120 is in the second position, the surface of the first operating element 120 near the first axis X1-X1 is in contact with the peripheral edge of the main body 110, or the surface of the first operating element 120 near the first axis X1-X1 has only a small gap distance with the peripheral edge of the main body 110, for example, a gap distance of 1-3mm. Therefore, when the first operating element 120 is switched to the second position, the space occupied by the cover 10 is minimized, and the filter is easier to store.

[0068] A first stop 115 is provided on the side edge of the main body 110, and the first stop 115 is located between the third protrusion 1141 and the fourth protrusion 1142. For example... Figure 7 As shown, when the first operating member 120 pivots from the second position to the first position around the second axis X2-X2 along the fourth direction D4, the first operating member 120 abuts against the first stop portion 115, and then the first stop portion 115 can prevent the first operating member 120 from continuing to pivot around the second axis X2-X2 along the fourth direction D4, so that the first operating member 120 remains in the first position.

[0069] When the first operating member 120 is in the first position, and the operator applies a force to the first operating member 120 in the direction of switching from the second position to the first position, the first stop 115 prevents the first operating member 120 from continuing to rotate about the second axis X2-X2 along the fourth direction D4, preventing the first operating member 120 from over-pivoting, so that the first operating member 120 only has a tendency to pivot about the second axis X2-X2 along the fourth direction D4. Since the fourth direction D4 about the second axis X2-X2 is the same as the first direction D1 about the first axis X1-X1, when the first operating member 120 has a tendency to pivot about the second axis X2-X2 along the fourth direction D4, the first operating member 120 can drive the main body 110 to rotate about the first axis X1-X1 along the first direction D1, thereby tightening the cover 10.

[0070] refer to Figure 6 In the second embodiment, the first stop portion 115 is approximately square-shaped. The first stop portion 115 has a first edge 1151 on the top side, a second edge 1152 on the bottom side, a third edge 1153 on the side close to the body 110, and a fourth edge 1154 on the side away from the body 110. The first edge 1151 is connected to the third protrusion 1141, the second edge 1152 is connected to the fourth protrusion 1142, the third edge 1153 is connected to the peripheral edge of the body 110, and the fourth edge 1154 is used to abut against the first operating member 120, thereby restricting the first operating member 120 from pivoting about the second axis X2-X2 along the fourth direction D4 when it is in the first position.

[0071] The first stop part 115 can be as follows: Figure 6 and Figure 7 As shown, the third protrusion 1141, the first stop 115, the fourth protrusion 1142, and the main body 110 are integrally formed. In some other embodiments, the first stop 115 may also be connected to one or more of the third protrusion 1141, the fourth protrusion 1142, and the peripheral surface of the main body 110 by means of bonding, welding, etc.

[0072] In this embodiment, the cover 10 is further provided with a second operating member 130 and a second stop 116. (Continue to refer to...) Figure 7 and Figure 8 The second operating member 130 and the first operating member 120 are symmetrically arranged, and the second stop part 116 and the first stop part 115 are also symmetrically arranged.

[0073] The second operating element 130 can pivot around the third axis X3-X3 and switch between the third and fourth positions.

[0074] Unlike the first stop 115, the second stop 116 restricts the pivoting of the second operating member 130 about the third axis X3-X3 along the fifth direction D5. When the second operating member 130 is located as follows... Figure 7 and Figure 8 In the third position shown, when the operator applies a force to the second operating member 130 in the direction of switching from the fourth position to the third position, the second operating member 130 only has a tendency to pivot about the third axis X3-X3 along the fifth direction D5. Since the fifth direction D5 about the third axis X3-X3 is the same as the second direction D2 about the first axis X1-X1, the second operating member 130 can drive the main body 110 to rotate about the first axis X1-X1 along the second direction D2. That is, the operator can loosen the cover 10 by using the second operating member 130.

[0075] When the first operating element 120 is in the second position and the second operating element 130 is in the fourth position, such as Figure 5 As shown, the cover 10 occupies the least space, making it easier to store the filter.

[0076] like Figure 9 and Figure 10 As shown, the cover 10 provided in the third embodiment of this application includes a main body 110 and a first operating member 120. Unlike the previous embodiments, the first operating member 120 in the third embodiment is detachably connected to the main body 110.

[0077] The first operating element 120 includes an insertion part 127 and a handle 128, such as Figure 9 As shown, the insertion part 127 is approximately rectangular in shape, and the width of the insertion part 127 is greater than the width of the handle 128. Of course, in some other embodiments, the width of the insertion part 127 may be equal to or less than the width of the handle 128, and this application does not impose any limitations on this.

[0078] refer to Figure 9 and Figure 10 The main body 110 is provided with a slot 117. The end of the slot 117 away from the first axis X1-X1 has an opening, which is used to guide the insertion part 127 into the slot 117.

[0079] The main body 110 is provided with a third stop 118, which is located at one end of the slot 117. When the first operating member 120 is inserted into the slot 117, the insertion part 127 abuts against the third stop 118, and the third stop 118 can restrict the first operating member 120 from being further inserted into the slot 117.

[0080] When the insertion part 127 is located in the slot 117, the two sides of the insertion part 127 perpendicular to the insertion direction abut against the side walls of the slot 117, thereby restricting the rotation of the first operating member 120 relative to the main body 110. Thus, when the operator applies a force to the handle 128 in the direction of the first axis X1-X1, the main body 110 can be driven to rotate around the first axis X1-X1, thereby tightening or loosening the cover 10.

[0081] In this embodiment, there are two slots 117, which are symmetrically arranged on both sides of the third stop portion 118. Thus, the operator can select one slot 117 to insert the first operating member 120. After rotating the cover 10 around the first axis X1-X1 by a certain angle (e.g., 180 degrees) using the first operating member 120, the operator can remove the first operating member 120 from one slot 117 and insert it into the other slot 117, continuing to rotate the cover 10 using the first operating member 120, and so on.

[0082] Of course, the operator may also insert the first operating element 120 into one of the slots 117 and keep the first operating element 120 inserted into the slot 117 without removing it when rotating the cover 10, that is, without inserting the first operating element 120 into the other slot 117.

[0083] Of course, the operator can also insert a first operating element 120 into each of the two slots 117 and alternately rotate the cover 10 through the two first operating elements 120.

[0084] It should be noted that the number of slots 117 is not limited in this application. In some other embodiments not listed, the number of slots 117 may be one, three, or more than three.

[0085] like Figure 11 and Figure 12 As shown, the cover 10 provided in the fourth embodiment of this application includes a main body 110 and a first operating member 120, which is detachably connected to the main body 110. When the first operating member 120 is connected to the main body 110, the operator can drive the main body 110 to rotate relative to the pump body 20 by grasping the first operating member 120, thereby tightening or loosening the cover 10.

[0086] Unlike the third embodiment, in this embodiment, the main body 110 of the cover 10 has a male connector 119, and the first operating member 120 has a female connector 129. Specifically, the male connector 119 is disposed on the top side of the main body 110. In this embodiment, the male connector 119 has an approximately circular sheet-like structure, and its outer circumferential surface is toothed. The female connector 129 of the first operating member 120 is disposed at one end of the first operating member 120. The female connector 129 is approximately annular and has a receiving hole 1291 for accommodating the male connector 119. The receiving hole 1291 has a toothed annular inner wall and can match the outer circumferential surface of the male connector 119.

[0087] Understandably, after aligning the toothed structure of the female connector 129 with the toothed structure of the male connector 119, the operator can place the first operating member 120 from top to bottom on the top side of the main body 110. At this time, the rotation of the first operating member 120 relative to the main body 110 is restricted. Therefore, the operator can drive the cover 10 to rotate by grasping the part of the first operating member 120 away from the female connector 129 and applying force.

[0088] It should be noted that, in this embodiment, the toothed structures of the male connector 119 and the female connector 129 are approximately triangular. In other embodiments, the toothed structures of the male connector 119 and the female connector 129 may also be trapezoidal or other shapes, and this application does not impose any limitations on this.

[0089] In some other embodiments not described, the shapes of the receiving holes 1291 of the male connector 119 and the female connector 129 differ from those in the embodiments described above. For example, the male connector 119 may be triangular, quadrilateral, or other polygonal, and the cross-section of the receiving hole 1291 of the female connector 129 may also be triangular, quadrilateral, or polygonal. In these cases, the rotation of the first operating member 120 may also be restricted.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cover for a filter, for screwing onto a pump body that engages with the filter, characterized in that, The lid includes: The main body can rotate around the first axis; A first actuating element is pivotally connected to the body and can switch between a first position and a second position; when the first actuating element is pivoted to the first position, the first actuating element can be subjected to force to drive the body to rotate about the first axis.

2. The lid according to claim 1, characterized in that, The main body is provided with a receiving groove; When the first actuating member is pivoted to the second position, at least a portion of the first actuating member is received in the receiving slot.

3. The lid according to claim 2, characterized in that, The main body is provided with an exhaust structure. When the first operating member is pivoted to the second position, the first operating member covers the exhaust structure.

4. The lid according to claim 3, characterized in that, The receiving groove has a side wall and a bottom wall, and the exhaust structure is disposed on the side wall or the bottom wall.

5. The lid according to any one of claims 2 to 4, characterized in that, The main body is provided with a first protrusion and a second protrusion, which are spaced apart to form the receiving groove.

6. The lid according to claim 2, characterized in that, When the first operating member is in the second position, the first operating member is detachably snapped into the main body.

7. The lid according to claim 1, characterized in that, The first operating member is pivotally connected to the side edge of the body, and the body is provided with a first stop. When the first operating member is in the first position, the first stop abuts against the first operating member to restrict the first operating member from rotating in the direction of switching from the second position to the first position.

8. The lid according to claim 7, characterized in that, When the first operating element is in the first position and the first operating element has a tendency to pivot in the direction of switching from the second position to the first position, the first operating element drives the body to rotate about the first axis in the first direction.

9. The lid according to claim 8, characterized in that, The cover also includes a second operating element, which is pivotally connected to the side edge of the body and can be switched between a third position and a fourth position; when the second operating element is in the third position and the second operating element has a tendency to pivot in the direction of switching from the fourth position to the third position, the second operating element drives the body to rotate about a first axis in the opposite direction to the first direction.

10. A filter, comprising a pump body, characterized in that, The filter further includes a cover as described in any one of claims 1 to 9, the cover being removably mounted on the pump body by screwing.

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