Water tank cover, water tank and fan

Abstract

The application belongs to the field of fans and relates to a water tank cover, a water tank and a fan. The water tank cover comprises a cover body and a lock tongue. The lock tongue is rotatably installed on the cover body and can be locked or unlocked with a lock core in the water tank body. The cover body is provided with a pressure relief area. The lock tongue blocks the pressure relief area when it is locked, and the lock tongue opens the pressure relief area when it is unlocked. Through the above arrangement, when the cover is provided with the water tank cover, the air in the water tank body can be discharged through the pressure relief area to achieve air pressure relief in the water tank body, thereby effectively avoiding the problems that the liquid in the water tank body is easily atomized from the humidification position and the gap between the water tank body and the water tank cover is leaked due to the compression of the air in the water tank body and the increase of the air pressure when the cover is provided with the water tank cover.

Description

Technical Field

[0001] This application relates to the field of fan technology, and more specifically, to a water tank cover, a water tank, and a fan. Background Technology

[0002] In the iterative improvement of fans, fans with humidification and atomization functions have been designed. These fans are usually equipped with a water tank, which typically includes a water tank body and a water tank cover. When the water tank cover is closed, the air inside the water tank body is easily compressed, which increases the air pressure inside the water tank body. As a result, the liquid inside the water tank body is prone to leaking out from the humidification and atomization position and the gap between the water tank body and the water tank cover. Therefore, improvements are urgently needed. Utility Model Content

[0003] Therefore, it is necessary to provide a water tank cover to address the above problems, which aims to effectively prevent the water tank body from being easily humidified and atomized due to the compression of air and increased air pressure when the water tank cover is closed, as well as the leakage from the gap between the water tank body and the water tank cover.

[0004] The embodiments of this application achieve the above objectives through the following technical solutions.

[0005] This application provides a water tank cover, which includes a cover body and a locking tongue. The locking tongue is rotatably mounted on the cover body and can be locked or unlocked with a lock cylinder inside the water tank body.

[0006] Furthermore, the cover is provided with a pressure relief area, and the locking tongue blocks the pressure relief area when locked and opens the pressure relief area when unlocked.

[0007] In one embodiment, the cover is provided with a through hole, and the locking tongue is rotatably inserted into the through hole;

[0008] Furthermore, the two ends of the latch axial direction are respectively formed with a lock cover portion located on the outside of the cover body and a lock latch portion located on the inside of the cover body, and the lock latch portion can lock or unlock with the lock cylinder;

[0009] When the locking cover is locked, it blocks the pressure relief area; when the locking latch is unlocked, it opens the pressure relief area.

[0010] In one embodiment, the pressure relief area is in communication with the through hole;

[0011] Alternatively, the pressure relief area is spaced apart from the through hole, and the outer peripheral wall of the locking cover is provided with a sealing protrusion, which can block or open the pressure relief area.

[0012] In one embodiment, the outer side of the cover adjacent to the through hole is formed as a first surface, the first surface is connected to a guide surface, the guide surface has a first position and a second position spaced apart circumferentially along the through hole, and the distance between the guide surface and the first surface increases in the direction from the first position to the second position.

[0013] When the latch rotates from blocking the pressure relief area to opening the pressure relief area, it moves on the guide surface in the direction from the first position to the second position.

[0014] In one embodiment, the latch is rotatably connected to a gripping part, the rotation axis of the gripping part being perpendicular to the rotation axis of the latch, and the gripping part moving on the guide surface in a direction pointing from the first position to the second position when the latch rotates from blocking the pressure relief area to opening the pressure relief area.

[0015] In one embodiment, the tank cover further includes an elastic seal that is held between the lock cover and the outer side of the cover adjacent to the pressure relief area when the lock cover seals the pressure relief area, so as to seal the pressure relief area.

[0016] In one embodiment, the outer peripheral wall of the latch can also be detachably fitted with a limiting member, the cover is limited between the lock cover and the limiting member, and the thickness of the cover is less than the distance between the lock cover and the limiting member.

[0017] In one embodiment, the inner side of the cover is provided with a boss surrounding the latch, the pressure relief area is connected to the side of the boss facing away from the cover, and / or, the pressure relief area is connected to the outer peripheral side of the boss.

[0018] This application also provides a water tank, which includes a water tank cover and a water tank body as described above, the cover being disposed on the water tank body, and a lock cylinder being provided inside the water tank body.

[0019] This application also provides a fan, which includes a water tank cover as described above or a water tank as described above.

[0020] Compared with the prior art, the embodiments of this application have the following advantages: The present application, through the water tank cover including a cover body and a locking tongue, wherein the locking tongue is rotatably installed on the cover body and can lock or unlock with the lock cylinder inside the water tank body, and the cover body is provided with a pressure relief area, wherein the locking tongue blocks the pressure relief area when locking and opens the pressure relief area when unlocking, allows the air inside the water tank body to be discharged through the pressure relief area when the water tank cover is closed, thereby achieving pressure relief of the air inside the water tank body. This effectively avoids the problem of the air inside the water tank body being compressed and the air pressure increasing when the water tank cover is closed, which leads to the liquid inside the water tank body easily self-humidifying and atomizing, as well as leakage from the gap between the water tank body and the water tank cover. Attached Figure Description

[0021] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is an exploded structural diagram of the water tank cover in one embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the fan structure in one embodiment of this application;

[0024] Figure 3 yes Figure 2 Partial cross-sectional structural schematic diagram;

[0025] Figure 4 This is a schematic diagram of the locking tongue structure in one embodiment of this application;

[0026] Figure 5 This is a cross-sectional view of the lock cylinder in one embodiment of this application;

[0027] Figure 6 This is an exploded structural diagram of the water tank cover in another embodiment of this application;

[0028] Figure 7 yes Figure 1 A structural schematic diagram of the cover from another perspective;

[0029] Figure 8 yes Figure 6 A structural schematic diagram of the cover from another perspective.

[0030] Figure label:

[0031] 1000, Fan;

[0032] 100. Water tank;

[0033] 10. Water tank lid;

[0034] 11. Cover; 11a. Pressure relief area; 11b. Through hole; 11c. First surface; 11d. Guide surface; 11e. Receiving groove; 11f. Sealing groove; 111. Boss;

[0035] 12. Locking tongue; 12a. Mounting slot;

[0036] 121. Locking part; 121a. Locking surface; 122. Locking cover part; 1221. Sealing protrusion; 123. Grip part; 124. Rotating shaft;

[0037] 13. Elastic seals;

[0038] 14. Limiting components;

[0039] 15. Gaskets;

[0040] 20. Water tank body; 201. Mounting protrusion; 201a. Assembly groove;

[0041] 21. Lock cylinder; 21a. Lock cylinder cavity; 21b. Lock cylinder opening; 21c. Locking surface;

[0042] 200. Fan body; 210. Fan section; 220. Handheld part. Detailed Implementation

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] This application provides a water tank cover that utilizes the locking mechanism of a latch mounted on the cover to lock or unlock with a lock cylinder inside the water tank. A pressure relief area is added to the cover, and the latch blocks the pressure relief area when locked and opens it when unlocked. This design allows the latch to switch not only between locking and unlocking but also simultaneously between blocking and opening the pressure relief area. When the water tank cover is closed, air inside the water tank can be discharged through the pressure relief area, effectively relieving pressure and preventing the water from being compressed and becoming pressurized, which could lead to liquid leakage from the humidification area or the gap between the water tank and the cover.

[0046] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0047] Please see Figures 1 to 5 This application provides a water tank 100, which includes a water tank cover 10 and a water tank body 20. The water tank cover 10 includes a cover body 11 and a locking tongue 12. The cover body 11 covers the water tank body 20. A lock cylinder 21 is provided inside the water tank body 20. The locking tongue 12 is rotatably installed on the cover body 11 so as to lock or unlock with the lock cylinder 21 inside the water tank body 20.

[0048] There are many ways to lock or unlock the bolt 12 and the lock cylinder 21. In this embodiment, please refer to... Figures 3 to 5 The latch 12 has a latch portion 121 located inside the cover 11, and the side of the latch portion 121 facing the cover 11 is formed as a latch surface 121a; the lock cylinder 21 has a lock cylinder cavity 21a and a lock cylinder opening 21b communicating with the lock cylinder cavity 21a, and the cavity wall of the lock cylinder cavity 21a adjacent to the lock cylinder opening 21b is formed as a locking surface 21c. The lock cylinder opening 21b is non-circular, such as square, rhomboid, elliptical or other shapes; the latch surface 121a can lock or release the constraint with the locking surface 21c when the latch 12 rotates, thereby realizing the locking or unlocking of the latch 12 and the lock cylinder 21. In other embodiments, the outer peripheral wall of the latch 121 may be provided with an external thread, and the inner peripheral wall of the lock cylinder 21 may be provided with an internal thread for engaging with the external thread. In this way, by rotating the lock cylinder 21, the external thread and the internal thread can be engaged or disengaged, thereby enabling the locking or unlocking of the latch 12 and the lock cylinder 21.

[0049] And, please see Figures 3 to 5The distance between the locking surface 121a and the rotation axis of the latch 12 increases progressively in the direction from the cover 11 to the locking part 121, and the distance between the locking surface 21c and the axis of the lock cylinder 21 increases progressively in the direction from the cover 11 to the locking part 121. This makes both the locking surface 121a and the locking surface 21c inclined, so that when the locking surface 121a rotates to lock with the locking surface 21c, a pressure is generated on the cover 11, pressing the cover 11 against the water tank body 20, thereby enhancing the fixing strength of the cover 11.

[0050] There are many ways to connect the lock cylinder 21 to the water tank body 20. In this embodiment, the lock cylinder 21 and the water tank body 20 are detachably connected. The detachable connection can be achieved through plugging, snap-fit, magnetic connection, threaded connection, or other methods. This design facilitates the replacement and maintenance of the lock cylinder 21. In other embodiments, the lock cylinder 21 and the water tank body 20 can also be integrally formed, which enhances the connection strength between the lock cylinder 21 and the water tank body 20. The lock cylinder 21 and the water tank body 20 can also be fixedly connected by methods such as bonding or welding.

[0051] There are many ways to connect the cover 11 and the water tank body 20. In this embodiment, the cover 11 and the water tank body 20 are set as two completely independent components. In use, the cover 11 is placed on the water tank body 20. In other embodiments, the cover 11 and the water tank body 20 can also be two components connected together. For example, the cover 11 is rotatably mounted on the water tank body 20, or the cover 11 is connected to the water tank body 20 through other connecting structures.

[0052] Specifically, please refer to Figure 3 The water tank body 20 has an integrally formed mounting protrusion 201. The mounting protrusion 201 has an assembly groove 201a on the side facing the cover 11. The lock cylinder 21 is interference-fitted into the assembly groove 201a, which makes the assembly of the lock cylinder 21 convenient.

[0053] The cover 11 is provided with a pressure relief area 11a, which connects the inner and outer sides of the cover 11 so that the air inside the cover 11 can flow to the outer side of the cover 11 through the pressure relief area 11a. The pressure relief area 11a extends straight from the inner to the outer side of the cover 11, so that the flow path of the air along the pressure relief area 11a is the shortest, which is conducive to pressure relief along the pressure relief area 11a.

[0054] When locked, the locking tongue 12 blocks the pressure relief area 11a, and when unlocked, the locking tongue 12 opens the pressure relief area 11a. In this embodiment, the locking tongue 12 completely blocks the pressure relief area 11a, so that when the cover 11 and the water tank body 20 are locked together, the liquid in the water tank body 20 is prevented from leaking out through the pressure relief area 11a. Correspondingly, the locking tongue 12 completely opens the pressure relief area 11a, so that when the cover 11 is placed on the water tank body 20, the air in the water tank body 20 can be discharged through the pressure relief area 11a.

[0055] It is understandable that the placement of the cover 11 on the water tank body 20 and the locking of the latch 12 can be performed sequentially. That is, the placement of the cover 11 on the water tank body 20 and the sealing of the pressure relief area 11a by the latch 12 can be performed sequentially. For example, when the latch 12 and the lock cylinder 21 are locked through the aforementioned locking surface 121a and engaging surface 21c, the cover 11 is first placed on the water tank body 20, and then the latch 12 is rotated until the locking surface 121a and engaging surface 21c are engaged, thus locking the latch 12 and the lock cylinder 21 and sealing the pressure relief area 11a. The locking of the water tank body 20 and the locking tongue 12 can also be carried out simultaneously. That is, the cover 11 covering the water tank body 20 and the locking tongue 12 sealing the pressure relief area 11a can be carried out simultaneously. For example, when the locking tongue 12 and the lock cylinder 21 are locked by the external and internal threads as described above, the external thread of the locking tongue 12 is screwed into the thread of the lock cylinder 21, and the cover 11 is moved toward the water tank body 20 simultaneously until the external thread of the locking tongue 12 and the internal thread of the lock cylinder 21 are completely screwed into each other, sealing the pressure relief area 11a together, and the cover 11 is closed on the water tank body 20 simultaneously.

[0056] By way of example and not limitation, the latch 12 may block the pressure relief area 11a only on the outside of the cover 11, or the latch 12 may block the pressure relief area 11a only on the inside of the cover 11, or the latch 12 may block the pressure relief area 11a on both the outside and inside of the cover 11.

[0057] It is worth noting that when the latch 12 switches between the open pressure relief region 11a and the closed pressure relief region 11a, the latch 12 may only rotate relative to the cover 11. For example, when the latch 12 is provided with the external thread described above, the latch 12 only rotates relative to the cover 11. The latch 12 may also both rotate relative to the cover 11 and move axially relative to the cover 11. For example, when the latch 12 is provided with the inclined locking surface 121a described above, the inclined locking surface 121a allows the latch 12 to both rotate relative to the cover 11 and move axially relative to the cover 11.

[0058] There are many types of pressure relief region 11a. Pressure relief region 11a can be set as a single hole structure with a large aperture, or it can be set as multiple hole structures with a small aperture. In this article, "multiple" refers to two or more. Multiple hole structures are arranged in a rectangular array or a ring array, and no specific limitation is made here.

[0059] The pressure relief area 11a can be set to one or more. When the pressure relief area 11a is set to multiple, the locking tongue 12 can be set to one, and one locking tongue 12 is used to block or open multiple pressure relief areas 11a. When the pressure relief area 11a is set to multiple, the locking tongue 12 can also be set to multiple, and each locking tongue 12 is used to block or open the corresponding pressure relief area 11a. No specific limitation is made here.

[0060] The pressure relief area 11a can have many shapes. It can be set in a regular shape such as square, circle, ellipse, or rhombus, or it can be set in other irregular shapes. No specific limitation is made here.

[0061] With the above technical solution, when installing the water tank cover 10, firstly, the cover 11 is placed on the water tank body 20, and the air inside the water tank body 20 is discharged through the pressure relief area 11a on the cover 11, thus relieving the pressure of the air inside the water tank body 20 and balancing the internal and external air pressure of the water tank 100; secondly, the locking tongue 12 is rotated until the locking surface 121a is locked with the locking surface 21c, and at the same time, the locking tongue 12 blocks the pressure relief area 11a, which allows the cover 11 to be pressed against the water tank body 20. The water tank cover 10 is installed by pressing it onto the water tank body 20. To remove the water tank cover 10, first, rotate the locking tongue 12 until the locking surface 121a and the locking surface 21c are released, thus releasing the lock between the cover 11 and the water tank body 20. Simultaneously, the locking tongue 12 opens the pressure relief area 11a, allowing the air pressure inside the water tank body 20 to return to equilibrium. Then, remove the cover 11 from the water tank body 20 to complete the removal of the water tank cover 10. This design effectively avoids the problem of liquid leakage from the humidification atomization point and the gap between the water tank body 20 and the water tank cover 10, which can occur when the water tank cover 10 is installed due to air compression and increased air pressure inside the water tank body 20.

[0062] There are many ways to block or open the pressure relief area 11a using the aforementioned locking tongue 12; please refer to [link / reference]. Figure 1In one embodiment of this application, the cover 11 is provided with a through hole 11b, and the locking tongue 12 is rotatably inserted into the through hole 11b; and the two ends of the locking tongue 12 are respectively formed with a latch portion 121 located inside the cover 11 and a locking cover portion 122 located outside the cover 11. The latch portion 121 can lock or unlock with the lock cylinder 21; when the latch portion 121 is locked, the locking cover portion 122 blocks the pressure relief area 11a, and when the latch portion 121 is unlocked, the locking cover portion 122 opens the pressure relief area 11a. With this configuration, the pressure relief area 11a can be blocked or opened on the outside of the cover 11, which makes it easy to observe whether the pressure relief area 11a is blocked in place.

[0063] Obviously, when the locking cover 122 switches between the sealed pressure relief area 11a and the open pressure relief area 11a, it can rotate only relative to the cover 11 as described in the above embodiments, or it can rotate relative to the cover 11 and move axially relative to the cover 11.

[0064] Specifically, the outer diameter of the latch 12 is the same as the outer diameter of the latch portion 121, and the outer peripheral wall of the latch 12 and the outer peripheral wall of the latch portion 121 are both clearance-fitted with the inner peripheral wall of the through hole 11b. The outer diameter of the lock cover portion 122 is larger than the inner diameter of the through hole 11b. With this arrangement, the latch portion 121 and the latch 12 can be passed through the through hole 11b in sequence to complete the installation of the latch 12, making the installation of the latch 12 convenient.

[0065] In other embodiments, a waterproof motor may be embedded inside the cover 11, and the locking tongue 12 may be connected to the drive end of the waterproof motor. The locking tongue 12 is driven to rotate by the waterproof motor. At this time, the outer peripheral wall of the locking tongue 12 is provided with a sealing structure located inside the cover 11. The sealing structure follows the rotation of the locking tongue 12 to seal or open the pressure relief area 11a inside the cover 11.

[0066] There are many ways to arrange the pressure relief zone 11a mentioned above; please refer to [link / reference]. Figure 1 In one embodiment of this application, the pressure relief region 11a is connected to the through hole 11b, and the pressure relief region 11a does not extend beyond the outer peripheral wall of the locking cover 122. The pressure relief region 11a is blocked or opened by the locking cover 122. Specifically, the pressure relief region 11a is a pressure relief groove formed on the hole wall of the through hole 11b. At this time, the locking cover 122 is configured to both rotate relative to the cover 11 and move axially relative to the cover 11 to ensure that the pressure relief region 11a can be blocked or opened by the locking cover 122.

[0067] Specifically, the pressure relief area 11a is set as two and located at two positions opposite to each other on the inner peripheral wall of the through hole 11b, which can enhance the pressure relief effect.

[0068] There are many ways to arrange the pressure relief zone 11a mentioned above; please refer to [link / reference]. Figure 6In another embodiment of this application, the pressure relief area 11a is spaced apart from the through hole 11b, and the pressure relief area 11a extends beyond the outer peripheral wall of the locking cover 122. The outer peripheral wall of the locking cover 122 is provided with a sealing protrusion 1221, which can block or open the pressure relief area 11a. At this time, the locking cover 122 can be configured to rotate only relative to the cover 11, or the locking cover 122 can be configured to both rotate relative to the cover 11 and move axially relative to the cover 11. Both configurations can achieve the sealing or opening of the pressure relief area 11a by the locking cover 122.

[0069] To facilitate the axial movement of the latch 12 relative to the cover 11, please refer to [reference needed]. Figure 1 and Figure 7 In one embodiment of this application, the outer side of the cover 11 adjacent to the through hole 11b is formed as a first surface 11c, the pressure relief area 11a is located on the first surface 11c, the first surface 11c is connected to a guide surface 11d, the guide surface 11d extends circumferentially along the through hole 11b, the guide surface 11d has a first position and a second position spaced apart circumferentially along the through hole 11b, and the distance between the guide surface 11d and the first surface 11c increases in the direction from the first position to the second position; when the latch 12 rotates from the sealing pressure relief area 11a to the opening pressure relief area 11a, it moves on the guide surface 11d in the direction from the first position to the second position.

[0070] In this embodiment, when the pressure relief area 11a is blocked, the locking tongue 12 abuts against the connection position of the guide surface 11d and the first surface 11c. When the pressure relief area 11a is opened, the locking tongue 12 abuts against the side of the guide surface 11d away from the first surface 11c. This setting makes it easy to determine whether the locking tongue 12 has rotated into place.

[0071] Furthermore, in this embodiment, the guide surface 11d is provided as an inclined plane, which facilitates the opening of the guide surface 11d. In other embodiments, the guide surface 11d may also be provided as a convex arc surface.

[0072] With the above technical solution, thanks to the guide surface 11d, when locking the bolt 12, rotating the bolt 12 causes it to move along the guide surface 11d in the direction from the second position to the first position until the bolt 12 abuts against the connection point between the guide surface 11d and the first surface 11c, i.e., the bolt 12 abuts against the first surface 11c, thus sealing the pressure relief area 11a and completing the locking process; when unlocking the bolt 12, rotating the bolt 12 causes it to move along the guide surface 11d in the direction from the first position to the second position until the bolt 12 abuts against the side of the guide surface 11d away from the first surface 11c, thus opening the pressure relief area 11a and completing the unlocking process.

[0073] There are many ways in which the aforementioned locking tongue 12 can move on the guide surface 11d in the direction from the first position to the second position when it rotates from the self-sealing pressure relief region 11a to the open pressure relief region 11a. Please refer to [link to relevant documentation]. Figure 1 and Figure 7 In one embodiment of this application, the latch 12 is rotatably connected to a gripping part 123. The rotation axis of the gripping part 123 is perpendicular to the rotation axis of the latch 12. When the latch 12 blocks the pressure relief area 11a, the gripping part 123 abuts against the first position. When the latch 12 rotates from blocking the pressure relief area 11a to opening the pressure relief area 11a, the gripping part 123 moves on the guide surface 11d in the direction from the first position to the second position. With this configuration, the user can grip and rotate the gripping part 123 to move the gripping part 123 on the guide surface 11d, which facilitates the movement of the latch 12 along the guide surface 11d.

[0074] Specifically, the outer side of the cover 11 is provided with a receiving groove 11e. The first surface 11c, the through hole 11b, the pressure relief area 11a and the guide surface 11d are all located at the bottom of the receiving groove 11e. The locking cover 122 is received in the receiving groove 11e. The grip is U-shaped. The two ends of the opening of the grip are rotatably connected to the two sides that are opposite to the outer periphery of the locking cover 122 through the pivot 124, so that the grip has an idle state received in the receiving groove 11e and a use state that is rotated out of the receiving groove 11e.

[0075] In other embodiments, the outer peripheral wall of the lock cover 122 may be provided with an abutment post extending radially thereon. The abutment post moves on the guide surface 11d in the direction from the first position to the second position when the lock tongue 12 rotates from the sealed pressure relief area 11a to the open pressure relief area 11a.

[0076] To enhance the sealing strength of the locking cover 122 on the pressure relief region 11a when the pressure relief region 11a is connected to the through hole 11b and the pressure relief region 11a does not extend beyond the outer peripheral wall of the locking cover 122, please refer to... Figures 1 to 3 In one embodiment of this application, the water tank cover 10 further includes an elastic sealing member 13. When the locking cover portion 122 blocks the pressure relief area 11a, the elastic sealing member 13 is clamped between the locking cover portion 122 and the position adjacent to the pressure relief area 11a on the outside of the cover body 11 to seal the pressure relief area 11a.

[0077] Obviously, when the latch 12 is unlocked, the elastic seal 13 can drive the lock cover 122 to move a certain distance away from the cover body 11 under its own rebound force, so that the elastic seal 13 releases the seal on the pressure relief area 11a.

[0078] In this embodiment, the elastic seal 13 is configured as a sealing ring. The first surface 11c is provided with a sealing groove 11f communicating with the through hole 11b, and the sealing groove 11f surrounds the through hole 11b. The pressure relief area 11a is located on the hole wall of the through hole 11b. The sealing ring is held in the sealing groove 11f by the locking cover part 122 and the cover body 11, which makes the installation of the sealing ring convenient. In other embodiments, the elastic seal 13 can also be configured as an elastic ball, elastic block, or other elastic sealing structures.

[0079] To facilitate the release of air within the water tank body 20 through the pressure relief area 11a, please refer to... Figure 8 In one embodiment of this application, the inner side of the cover 11 is provided with a boss 111 surrounding the locking tongue 12. The pressure relief area 11a is connected to the side of the boss 111 facing away from the cover 11, and the pressure relief area 11a is connected to the outer peripheral side of the boss 111. This arrangement allows the air in the water tank body 20 to flow into the pressure relief area 11a through the radial and axial directions of the boss 111 for pressure relief, thereby making pressure relief convenient.

[0080] In other embodiments, the pressure relief area 11a may be connected only to the side of the boss 111 facing away from the cover 11, or the pressure relief area 11a may be connected only to the outer peripheral side of the boss 111.

[0081] Please see Figures 1 to 3 In one embodiment of this application, the outer peripheral wall of the locking tongue 12 can also be detachably installed with a limiting member 14, the cover 11 is limited between the lock cover portion 122 and the limiting member 14, and the thickness of the cover 11 is less than the distance between the lock cover portion 122 and the limiting member 14.

[0082] With the above technical solution, when installing the latch 12, the latching part 121 and the latch 12 are first passed through the through hole 11b in sequence, with the cover part 122 located outside the cover body 11. Then, the limiting member 14 is installed on the latch 12, which can limit the cover body 11 between the cover part 122 and the limiting member 14. When disassembling the latch 12, the limiting member 14 is first removed from the latch 12, and then the latch 12 and the latching part 121 are passed through the through hole 11b in sequence, thus completing the disassembly of the latch 12. This arrangement enables a detachable connection between the latch 12 and the cover body 11, thereby facilitating the inspection and replacement of the latch 12. Furthermore, the setting that the thickness of the cover body 11 is less than the distance between the cover part 122 and the limiting member 14 ensures that the cover part 122 can move axially relative to the cover body 11.

[0083] There are many ways in which the locking stop 14 can be detachably installed on the bolt 12; please refer to [the relevant documentation]. Figure 1 , Figure 3 as well as Figure 4In one embodiment of this application, the outer peripheral wall of the latch 12 is recessed with a mounting groove 12a extending circumferentially thereon, the limiting member 14 is elastic and is arranged in an annular shape with an opening, the inner side of the limiting member 14 in the radial direction is engaged in the mounting groove 12a, and the outer side of the limiting member 14 in the radial direction extends out of the mounting groove 12a and abuts against the cover 11.

[0084] With the above technical solution, when installing the limiting member 14, the limiting member 14 is pried open along its opening and snapped into the mounting groove 12a, thus completing the installation of the limiting member 14; when removing the limiting member 14, the limiting member 14 is pried open along its opening and taken out from the mounting groove 12a, thus completing the removal of the limiting member 14, which makes the removal of the limiting member 14 convenient.

[0085] In other embodiments, the limiting member 14 may also be threaded onto the outer peripheral wall of the latch 12 to achieve a detachable connection between the limiting member 14 and the latch 12.

[0086] Considering that if the limiting member 14 directly abuts against the cover 11, wear and tear will occur on both the cover 11 and the limiting member 14 during long-term use, thus shortening their service life, in order to avoid wear and tear caused by direct contact between the cover 11 and the limiting member 14, please refer to [the relevant documentation / reference]. Figure 1 and Figure 3 In one embodiment of this application, a gasket 15 is further sandwiched between the cover 11 and the limiting member 14, and the gasket 15 is sleeved on the outer periphery of the locking tongue 12. Specifically, the gasket 15 is sandwiched between the boss 111 and the limiting member 14.

[0087] It is worth mentioning that the distance between the lock cover 122 and the limiting member 14 is greater than the sum of the thickness of the cover 11, the thickness of the boss 111, the thickness of the gasket 15 and the thickness of the elastic seal 13, so as to ensure that the lock tongue 12 can move axially relative to the cover 11.

[0088] Please see Figures 1 to 3 This application also provides a fan 1000, which includes a water tank 100 and a fan body 200 as described above. The water tank 100 is disposed on the fan body 200. The specific structure of the water tank 100 is the same as described in the above embodiments. Since the fan 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0089] In this embodiment, the fan body 200 includes a fan section 210 and a handheld section 220 connected together. The water tank body 20 is integrally formed with the lower part of the handheld section 220 and has an opening at the lower end. The water tank cover 10 is placed over the opening of the water tank body 20, thereby enhancing the fixing strength of the water tank body 20. In other embodiments, the fan body 200 can also be configured as an integral component, and the water tank body 20 can also be fixed to the handheld section 220 or the fan section 210 by the fixed connection or detachable connection method described in the above embodiments.

[0090] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A water tank cover (10), characterized in that, The water tank cover (10) includes a cover body (11) and a locking tongue (12). The locking tongue (12) is rotatably mounted on the cover body (11) and can lock or unlock with the lock cylinder (21) inside the water tank body (20). The cover (11) is provided with a pressure relief area (11a), the latch (12) blocks the pressure relief area (11a) when locked, and the latch (12) opens the pressure relief area (11a) when unlocked.

2. The water tank cover (10) according to claim 1, characterized in that, The cover (11) is provided with a through hole (11b), and the locking tongue (12) is rotatably inserted into the through hole (11b); Furthermore, the two ends of the axial direction of the latch (12) are respectively formed with a lock cover part (122) located on the outside of the cover (11) and a latch part (121) located on the inside of the cover (11), and the latch part (121) can lock or unlock with the lock cylinder (21); The locking cover (122) blocks the pressure relief area (11a) when the latch (121) is locked, and the locking cover (122) opens the pressure relief area (11a) when the latch (121) is unlocked.

3. The water tank cover (10) according to claim 2, characterized in that, The pressure relief area (11a) is connected to the through hole (11b); Alternatively, the pressure relief area (11a) is spaced apart from the through hole (11b), and the outer peripheral wall of the locking cover (122) is provided with a sealing protrusion (1221), which can block or open the pressure relief area (11a).

4. The water tank cover (10) according to claim 2, characterized in that, The outer side of the cover (11) adjacent to the through hole (11b) is formed as a first surface (11c), the first surface (11c) is connected to a guide surface (11d), the guide surface (11d) has a first position and a second position that are circumferentially spaced along the through hole (11b), and the distance between the guide surface (11d) and the first surface (11c) increases in the direction from the first position to the second position; The latch (12) moves on the guide surface (11d) in the direction from the first position to the second position as it rotates from blocking the pressure relief area (11a) to opening the pressure relief area (11a).

5. The water tank cover (10) according to claim 4, characterized in that, The latch (12) is rotatably connected to a gripping part (123). The rotation axis of the gripping part (123) is perpendicular to the rotation axis of the latch (12). When the latch (12) rotates from blocking the pressure relief area (11a) to opening the pressure relief area (11a), the gripping part (123) moves on the guide surface (11d) in the direction from the first position to the second position.

6. The water tank cover (10) according to claim 2, characterized in that, The water tank cover (10) also includes an elastic seal (13), which is held between the lock cover (122) and the outer side of the cover (11) adjacent to the pressure relief area (11a) when the lock cover (122) blocks the pressure relief area (11a), so as to seal the pressure relief area (11a).

7. The water tank cover (10) according to claim 2, characterized in that, The outer peripheral wall of the latch (12) can also be detachably installed with a limiting member (14). The cover (11) is limited between the lock cover (122) and the limiting member (14), and the thickness of the cover (11) is less than the distance between the lock cover (122) and the limiting member (14).

8. The water tank cover (10) according to any one of claims 1 to 7, characterized in that, The inner side of the cover (11) is provided with a boss (111) surrounding the latch (12), the pressure relief area (11a) is connected to the side of the boss (111) facing away from the cover (11), and / or, the pressure relief area (11a) is connected to the outer peripheral side of the boss (111).

9. A water tank (100), characterized in that, The water tank (100) includes a water tank cover (10) as described in any one of claims 1 to 8 and a water tank body (20), wherein the cover (11) covers the water tank body (20) and the water tank body (20) is provided with a lock cylinder (21).

10. A fan (1000), characterized in that, The fan (1000) includes a water tank cover (10) as claimed in any one of claims 1 to 8 or a water tank (100) as claimed in claim 9.

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