A top cover locking device for a humidifier
Patent Information
- Application Number
- CN202522507803.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-26
AI Technical Summary
[0003]针对现有技术的不足，本实用新型提供了一种用于加湿器的顶盖锁定装置，解决了对于卡扣式连接结构，其核心依赖卡扣臂与主体卡槽的弹性卡合实现固定，加湿器运行过程中，若意外触碰卡扣或受到外力碰撞，卡扣臂易发生弹性形变而脱离卡槽，导致顶盖松动甚至弹开，易造成水箱内的水体泄漏，污染实验室台面、精密仪器或家居环境，而螺纹式连接结构通过顶盖与主体的螺纹啮合实现密封固定，虽能一定程度提升连接稳定性，每次加水或清洁时需反复旋转顶盖，操作繁琐且耗时，降低使用便捷性的技术问题
将顶盖本体底面的环形密封垫与加湿器主体顶部端面初步贴合，为后续密封做好准备，向下按压顶盖本体顶部的按钮，触发全流程联动锁定，按钮沿套筒轴向向下滑动，限位板沿限位块表面同步滑动，保持无转动状态，挤压内部的支撑弹簧，使支撑弹簧收缩蓄力，按钮带动外部固定的两个推块沿导向孔向下移动，推块的下端面与卡扣臂的端部接触并施加横向推力，卡扣臂在推块的推力作用下，沿配合结构预设的导向槽横向滑动，卡扣臂滑动过程中，挤压中部套接的复位弹簧，复位弹簧一端固定在定位块上，随卡扣臂移动被压缩蓄力，当按钮向下滑动至极限位置时，套筒内部的卡块与按钮上弹性块完成卡接咬合，实现按钮的临时锁止，避免支撑弹簧回弹，同步地，卡扣臂的外侧端部在推力作用下向外凸起，精准卡入加湿器主体对应的卡扣槽内，完成顶盖与加湿器主体的核心锁定，此时配合结构与加湿器主体的贴合压力将环形密封垫均匀压紧，使密封垫完全贴合两者接触面，形成严密的密封结构，有效阻挡加湿器内部水汽从缝隙泄漏；
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Figure CN224872636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of humidifier accessories, and in particular to a top cover locking device for a humidifier. Background Technology
[0002] In chemical analysis laboratories, precision instrument working environments, and everyday home settings, humidifiers are key devices for maintaining ambient humidity. The stability of the connection between the top cover and the main body directly affects the safety and reliability of use. Existing humidifier top cover locking structures are mainly divided into two types: snap-on and threaded. For snap-on connection structures, the core relies on the elastic engagement of the snap-on arm and the main body slot for fixation. During the operation of the humidifier, if the snap-on is accidentally touched or subjected to external force, the snap-on arm is prone to elastic deformation and disengagement from the slot, causing the top cover to loosen or even pop open, which can easily cause water leakage in the water tank, contaminating laboratory countertops, precision instruments, or home environments. On the other hand, threaded connection structures achieve sealing and fixation through the threaded engagement of the top cover and the main body. Although this can improve the connection stability to a certain extent, the top cover needs to be rotated repeatedly every time water is added or cleaned, which is cumbersome and time-consuming, reducing the convenience of use. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a top cover locking device for humidifiers. It solves the problem that for snap-on connection structures, which rely on the elastic engagement of the snap-on arm with the main body's slot for fixation, the snap-on arm is prone to elastic deformation and disengagement from the slot if accidentally touched or subjected to external force during humidifier operation. This can cause the top cover to loosen or even pop open, potentially leading to water leakage from the tank and contaminating laboratory surfaces, precision instruments, or the home environment. While threaded connection structures achieve sealing and fixation through the threaded engagement of the top cover and the main body, improving connection stability to some extent, the top cover requires repeated rotation each time water is added or cleaned, making operation cumbersome and time-consuming, thus reducing ease of use.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A top cover locking device for a humidifier includes a top cover body and a mating structure adapted to the humidifier body. The mating structure has two elastic snap-fit components inside. Each elastic snap-fit component includes a snap-fit arm, a positioning block, and a return spring. The mating structure has two guide grooves at both ends of each snap-fit arm. The two ends of the snap-fit arm are slidably connected to the inside of the guide grooves. A pressing mechanism is provided between the two elastic snap-fit components. The pressing mechanism includes a sleeve, a support spring, a snap block, a button, a push block, and an elastic block. A guide tube is fixedly installed on one side of the top cover body corresponding to the sleeve. The button is slidably connected to the inside of the guide tube.
[0005] Preferably, the latching arm is slidably connected inside the mating structure, the positioning block is fixedly installed on one side of the mating structure corresponding to the middle of the latching arm, one end of the return spring is fixedly connected to the outside of the positioning block, and the other end is sleeved on the middle of the latching arm. Two guide holes are opened on the outside of the guide tube, and the push block is slidably connected inside the guide holes.
[0006] Preferably: the sleeve is fixedly installed inside the mating structure, the support spring is fixedly connected inside the sleeve, the locking block is fixedly installed inside the sleeve, the button is slidably connected to the outside of the sleeve, there are two push blocks, the two push blocks are fixedly installed outside the button respectively, and the elastic block is fixedly installed on the side of the button corresponding to the locking block.
[0007] Preferably, a limiting block is fixedly installed on the outside of the sleeve, and two limiting plates are fixedly installed inside the button. The limiting plates are attached to the surface of the limiting block and are used to limit the rotation of the button.
[0008] Preferred configuration: Six guide tubes are fixedly installed inside the humidifier structure. Each guide tube has a corresponding end cap fixedly installed on the top cover body. The end caps are attached to the surface of the guide tubes. An annular sealing gasket is fitted at the bottom of the humidifier structure. The position of the annular sealing gasket corresponds to the top end face of the humidifier body. The end caps are attached to the surface of the guide tubes. This configuration achieves precise radial positioning of the top cover and provides a uniform water vapor flow channel between the guide tubes and the end caps. This ensures that the water vapor generated inside the humidifier can be smoothly discharged to the outside and avoids airflow obstruction.
[0009] Preferably, an elastic buckle is fixedly installed on one side of the top cover body corresponding to the mating structure, a limit buckle is fixedly installed inside the mating structure, a protrusion is fixedly installed on the top cover body corresponding to the mating structure, and a groove is opened on one side of the mating structure corresponding to the top cover body. The protrusion is slidably connected inside the groove. The protrusion and groove provide initial guidance between the top cover body and the mating structure in the early stage of assembly, so as to quickly align the assembly position, avoid misalignment during installation, and improve assembly efficiency. After the top cover is initially fitted, the elastic buckle deforms and resets to fit outside the limit buckle, forming a fixation and preventing the top cover from slipping off during assembly.
[0010] Compared with the prior art, the present invention has the following beneficial effects: Preliminarily attach the annular sealing gasket on the bottom surface of the top cover to the top end face of the humidifier body to prepare for subsequent sealing. Press down on the button on the top of the top cover to trigger the full-process linkage locking. The button slides downward along the sleeve axis, and the limiting plate slides synchronously along the surface of the limiting block, maintaining a non-rotating state. This compresses the internal support spring, causing it to contract and store force. The button then moves the two externally fixed push blocks downward along the guide hole. The lower end face of the push block contacts the end of the latching arm and applies a lateral pushing force. Under the pushing force of the push block, the latching arm slides laterally along the pre-set guide groove of the mating structure. During the sliding of the latching arm, the reset mechanism in the middle is compressed. The spring, with one end fixed to the positioning block, is compressed and stores force as the latching arm moves. When the button slides down to its limit position, the latching block inside the sleeve engages with the elastic block on the button, temporarily locking the button and preventing the support spring from rebounding. Simultaneously, the outer end of the latching arm protrudes outward under the pushing force, precisely engaging into the corresponding latching groove of the humidifier body, completing the core locking of the top cover and the humidifier body. At this time, the contact pressure between the cooperating structure and the humidifier body evenly presses the annular sealing gasket, making the sealing gasket completely fit the contact surface of the two, forming a tight sealing structure, effectively preventing water vapor inside the humidifier from leaking out of the gaps. By using a pre-fitting annular sealing gasket and a press-locking design, the problem of the traditional snap-on structure being prone to loosening and popping open due to external force, resulting in water leakage, is solved. It also eliminates the cumbersome operation of repeated rotation of the threaded structure. While enhancing the stability and sealing performance of the connection between the top cover and the main body and preventing leakage from contaminating laboratory precision instruments or home environments, it also improves the ease of operation. Attached Figure Description
[0011] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This utility model Figure 1 Structural diagram of the annular sealing gasket.
[0014] Figure 3 This utility model Figure 1 Structural diagram of the mating structure.
[0015] Figure 4 This utility model Figure 3 Structural diagram of the middle sleeve.
[0016] Figure 5 This utility model Figure 4 Structural diagram of the middle guide tube.
[0017] Figure 6 This utility model Figure 1 Structural diagram of the top cover body.
[0018] Figure 7 This utility model Figure 1 Structure diagram of the button in the middle.
[0019] Legend: 1. Top cover body; 2. Mating structure; 3. Buckle arm; 4. Positioning block; 5. Return spring; 6. Guide groove; 7. Sleeve; 8. Support spring; 9. Locking block; 10. Button; 11. Push block; 12. Protrusion; 13. Groove; 14. Elastic block; 15. Guide tube; 16. Limiting plate; 17. Limiting block; 18. Flow guide tube; 19. Tube end cap; 20. Annular sealing gasket; 21. Elastic buckle; 22. Limiting buckle; 23. Guide hole. Detailed Implementation
[0020] This application provides a top cover locking device for a humidifier, effectively solving the problem that for snap-on connection structures, the core relies on the elastic engagement of the snap-on arm and the main body's slot for fixation. During humidifier operation, if the snap-on is accidentally touched or subjected to external force, the snap-on arm is prone to elastic deformation and disengage from the slot, causing the top cover to loosen or even pop open, which can easily lead to water leakage in the water tank, contaminating laboratory countertops, precision instruments, or the home environment. While threaded connection structures achieve sealing and fixation through the threaded engagement of the top cover and the main body, which can improve connection stability to a certain extent, the top cover needs to be rotated repeatedly every time water is added or cleaned, making the operation cumbersome and time-consuming, reducing the ease of use. Example
[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the technical solution in this application effectively solves the problem that for snap-on connection structures, the core relies on the elastic engagement of the snap-on arm and the main body slot for fixation. During the operation of the humidifier, if the snap-on is accidentally touched or subjected to external force, the snap-on arm is prone to elastic deformation and disengagement from the slot, causing the top cover to loosen or even pop open, which can easily lead to water leakage in the water tank, contaminating laboratory countertops, precision instruments, or the home environment. While threaded connection structures achieve sealing and fixation through the threaded engagement of the top cover and the main body, which can improve connection stability to a certain extent, the top cover needs to be rotated repeatedly every time water is added or cleaned, which is cumbersome and time-consuming, reducing the ease of use. The overall approach is as follows: To address the problems existing in the prior art, this utility model provides a top cover locking device for a humidifier, including a top cover body 1 and a mating structure 2 adapted to the humidifier body. The mating structure 2 has two elastic buckle components inside, each elastic buckle component including a buckle arm 3, a positioning block 4, and a return spring 5. The buckle arm 3 is slidably connected inside the mating structure 2, and the positioning block 4 is fixedly installed on one side of the mating structure 2 corresponding to the middle of the buckle arm 3. One end of the return spring 5 is fixedly connected to the positioning block 4, and the other end is sleeved on the middle of the buckle arm 3. The buckle arm 3 slides laterally under the action of thrust, and the end protrusion is engaged in the buckle groove of the humidifier body to achieve core locking. The return spring 5 provides the rebound force when unlocking, and the positioning block 4 fixes one end of the spring and restricts the deformation direction.
[0022] The structure 2 has two guide grooves 6 at both ends of each buckle arm 3. The two ends of the buckle arm 3 are slidably connected inside the guide grooves 6, providing a lateral sliding trajectory for the buckle arm 3 and restricting its movement direction.
[0023] A pressing mechanism is provided between the two elastic buckle components. The pressing mechanism includes a sleeve 7, a support spring 8, a locking block 9, a button 10, a push block 11, and an elastic block 14. The sleeve 7 is fixedly installed inside the mating structure 2. The support spring 8 is fixedly connected inside the sleeve 7. The locking block 9 is fixedly installed inside the sleeve 7. The button 10 is slidably connected to the outside of the sleeve 7. There are two push blocks 11, which are fixedly installed outside the button 10. The elastic block 14 is fixedly installed on the side of the button 10 corresponding to the locking block 9. The button 10 is the operating carrier and slides axially along the guide tube 15, driving the push block 11 to move synchronously. The guide tube 15 restricts the radial displacement of the button 10. The operation is concentrated and effortless. The user can trigger the entire process locking with a single pressing action. The sleeve 7 provides sliding support for the button 10. The support spring 8 contracts and stores force when pressed and rebounds and resets when unlocked. The locking block 9 and the elastic block 14 engage and bite together to temporarily lock the button 10.
[0024] A guide tube 15 is fixedly installed on one side of the top cover body 1 corresponding to the sleeve 7. The button 10 is slidably connected inside the guide tube 15. Two guide holes 23 are opened on the outer side of the guide tube 15. The push block 11 is slidably connected inside the guide holes 23.
[0025] A limiting block 17 is fixedly installed on the outside of the sleeve 7, and two limiting plates 16 are fixedly installed inside the button 10. The limiting plates 16 are attached to the surface of the limiting block 17 and are used to limit the rotation of the button 10.
[0026] An elastic buckle 21 is fixedly installed on one side of the top cover body 1 corresponding to the mating structure 2. A limit buckle 22 is fixedly installed inside the mating structure 2. After the top cover is initially attached, the elastic buckle 21 deforms and resets to fit outside the limit buckle 22, forming a fixation to prevent the top cover from slipping during assembly and to provide stable support for subsequent locking steps. The elastic structure adapts to slight assembly errors and improves structural compatibility.
[0027] The top cover body 1 is fixedly installed with a protrusion 12 corresponding to the mating structure 2. The mating structure 2 has a groove 13 on one side corresponding to the top cover body 1. The protrusion 12 is slidably connected inside the groove 13. The protrusion 12 and the groove 13 achieve initial guidance between the top cover body 1 and the mating structure 2 in the early stage of assembly, so as to quickly align the assembly position, avoid misalignment during installation, and improve assembly efficiency.
[0028] The structure 2 is equipped with six guide tubes 18. The top cover body 1 is equipped with a tube end cap 19 for each guide tube 18. The tube end cap 19 is attached to the surface of the guide tube 18. The guide tube 18 and the tube end cap 19 form a water vapor circulation channel to ensure that the water vapor generated inside the humidifier can be smoothly discharged to the outside and avoid airflow obstruction.
[0029] An annular sealing gasket 20 is fitted at the bottom of the structure 2, and the position of the annular sealing gasket 20 corresponds to the top end face of the humidifier body.
[0030] Working principle: In the first step, with the top cover not installed, all components are in their default initial positions. The return spring 5 is in a naturally extended state, causing the latch arm 3 to remain in its initial position within the guide groove 6. The outer end of the latch arm 3 does not protrude outwards, and the support spring 8 extends naturally. The push button 10 extends upwards, and the latch block 9 and the elastic block 14 are separated. The two push blocks 11 are in contact with the upper inner wall of the guide hole 23, without exerting any pushing force on the latch arm 3. During assembly, first align the top cover body 1 directly above the humidifier body, so that the protrusion 12 of the top cover body 1 is precisely embedded into the groove 13 of the mating structure 2, achieving initial assembly. The elastic buckle 21 on the top cover body 1 first undergoes elastic deformation. After the mating structure 2 is initially attached to the top of the humidifier body, the elastic buckle 21 resets and is sleeved on the outside of the limiting buckle 22, initially limiting the horizontal displacement of the top cover. At the same time, the guide tube 15 is precisely sleeved on the outside of the button 10, and the push block 11 is simultaneously embedded in the guide hole 23 to complete the sliding adaptation of the pressing mechanism. The cylinder end cap 19 is attached to the surface of the six guide tubes 18 of the mating structure 2. The guide tubes 18 and the cylinder end cap 19 form a water vapor flow channel to ensure that the water vapor generated inside the humidifier can be smoothly discharged to the outside and avoid airflow obstruction. The second step involves initially fitting the annular sealing gasket 20 on the bottom surface of the top cover body 1 to the top end face of the humidifier body to prepare for subsequent sealing. Then, press down on the button 10 on the top of the top cover body 1 to trigger the full-process linkage locking. The button 10 slides downwards along the sleeve 7 axis, and the limiting plate 16 slides synchronously along the surface of the limiting block 17, maintaining a non-rotating state. This compresses the internal support spring 8, causing it to contract and store force. The button 10 then drives the two externally fixed push blocks 11 to move downwards along the guide hole 23. The lower end face of the push block 11 contacts the end of the latching arm 3 and applies a lateral pushing force. Under the pushing force of the push block 11, the latching arm 3 slides laterally along the pre-set guide groove 6 of the mating structure 2. During the sliding process, the latching arm 3 compresses the reset spring 5 sleeved in the middle. One end of the reset spring 5 is fixed to the positioning block 4. As the latch arm 3 moves, it is compressed and stores force. When the button 10 slides down to the limit position, the latch block 9 inside the sleeve 7 engages with the elastic block 14 on the button 10, temporarily locking the button 10 and preventing the support spring 8 from rebounding. Simultaneously, the outer end of the latch arm 3 protrudes outward under the action of the thrust, accurately engaging into the corresponding latch groove of the humidifier body, completing the core locking of the top cover and the humidifier body. During the locking process, the contact pressure between the cooperating structure 2 and the humidifier body evenly presses the annular sealing gasket 20, making the sealing gasket completely fit the contact surface of the two, forming a tight sealing structure, effectively preventing water vapor inside the humidifier from leaking out of the gaps, ensuring the humidification effect and preventing the surrounding environment from getting damp.
[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A top cover locking device for a humidifier, comprising a top cover body (1) and a mating structure (2) adapted to the humidifier body, characterized in that, The mating structure (2) is internally provided with two elastic buckle components, each of which includes a buckle arm (3), a positioning block (4), and a return spring (5). The structure (2) has two guide grooves (6) at both ends of each buckle arm (3), and the two ends of the buckle arm (3) are slidably connected to the inside of the guide grooves (6); Among them, a pressing mechanism is provided between the two elastic buckle components. The pressing mechanism includes a sleeve (7), a support spring (8), a locking block (9), a button (10), a push block (11), and an elastic block (14). The top cover body (1) is fixedly installed with a guide tube (15) on one side corresponding to the sleeve (7), and the button (10) is slidably connected inside the guide tube (15).
2. The top cover locking device for a humidifier as described in claim 1, characterized in that, The latching arm (3) is slidably connected inside the mating structure (2), the positioning block (4) is fixedly installed on one side of the mating structure (2) corresponding to the middle of the latching arm (3), and one end of the return spring (5) is fixedly connected to the outside of the positioning block (4), and the other end is sleeved on the middle of the latching arm (3); Two guide holes (23) are opened on the outer side of the guide tube (15), and the push block (11) is slidably connected inside the guide hole (23).
3. A top cover locking device for a humidifier as described in claim 1, characterized in that, The sleeve (7) is fixedly installed inside the mating structure (2), the support spring (8) is fixedly connected inside the sleeve (7), the locking block (9) is fixedly installed inside the sleeve (7), the button (10) is slidably connected to the outside of the sleeve (7), there are two push blocks (11), the two push blocks (11) are fixedly installed outside the button (10) respectively, and the elastic block (14) is fixedly installed on the side of the button (10) corresponding to the locking block (9).
4. A top cover locking device for a humidifier as described in claim 1, characterized in that, The sleeve (7) is fixedly installed with a limiting block (17) on the outside, and two limiting plates (16) are fixedly installed inside the button (10). The limiting plates (16) are attached to the surface of the limiting block (17) and are used to limit the rotation of the button (10).
5. A top cover locking device for a humidifier as described in claim 1, characterized in that, The internal structure (2) has six guide tubes (18) fixedly installed inside. The top cover body (1) is fixedly installed with a tube end cap (19) corresponding to each guide tube (18), and the tube end cap (19) is attached to the surface of the guide tube (18).
6. A top cover locking device for a humidifier as described in claim 1, characterized in that, The bottom of the mating structure (2) is fitted with an annular sealing gasket (20), and the position of the annular sealing gasket (20) corresponds to the top end face of the humidifier body.
7. A top cover locking device for a humidifier as described in claim 1, characterized in that, The top cover body (1) is fixedly installed with an elastic buckle (21) on one side of the corresponding mating structure (2), and a limit buckle (22) is fixedly installed inside the mating structure (2).
8. A top cover locking device for a humidifier as described in claim 1, characterized in that, The top cover body (1) is fixedly installed with a protrusion (12) corresponding to the mating structure (2). The mating structure (2) has a groove (13) on one side of the top cover body (1), and the protrusion (12) is slidably connected inside the groove (13).