Safety lock head structure and wet garbage dryer

By designing a safety lock structure and adopting a combination of knobs and buttons with a two-step unlocking process, the problem of mis-locking of the lock structure in wet waste dryers under high-temperature environments has been solved, thus improving safety and reliability.

CN224282245UActive Publication Date: 2026-05-26XIAMEN JIER ELECTRICAL APPLIANCES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN JIER ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-07-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The locking mechanism of existing wet waste dryers is prone to accidental locking under high temperature conditions, posing a safety hazard, especially dangerous for families with children.

Method used

A safety lock head structure was designed, including a knob, a button, and a limiting part. Security is ensured through a two-step unlocking process: the button first disengages from the limiting groove, and then the knob is rotated to unlock. The design of the linkage and the latch prevents accidental operation.

Benefits of technology

It achieves a safe and simple unlocking process, preventing accidental operation by children and improving the safety and reliability of the wet waste dryer.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224282245U_ABST
    Figure CN224282245U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of human life necessities, and provides a safety lock head structure and a wet garbage dryer, the safety lock head structure comprises a locking piece, a fixing frame and a lock catch, the locking piece comprises a knob, a button and a lock head, a limiting part is arranged on the side face of the inner end of the button, and a linkage part rotating synchronously is arranged between the button and the knob; the fixing frame is provided with at least two arc-shaped holes and a mounting hole, and a limiting groove is formed in the inner end face, located in the mounting hole, of the fixing frame. The length difference between the button and the knob is greater than the depth value of the limiting groove; and the lock catch and the lock head are locked or separated. During unlocking, the button is pressed firstly, so that the limiting part is separated from the limiting groove; and at the moment, the knob is rotated, so that the button rotates along with the knob, the barb part is separated from the hook piece, and the lock head is unlocked. The two-step unlocking process is simple, convenient and safe, misoperation is avoided, the situation of unlocking by children is avoided, and the safety is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of human life necessities, specifically to a safety lock structure and a wet waste dryer. Background Technology

[0002] A wet waste dryer is a device specifically designed to process household wet waste (such as kitchen waste, fruit and vegetable scraps, etc.). Through high-temperature drying, it significantly reduces the volume of wet waste, making it easier to store and transport. Furthermore, the dried wet waste can be used as raw material for organic fertilizer or in other resource recycling programs, achieving waste reduction and resource recovery.

[0003] Since wet waste typically contains a large amount of moisture, dryers need to evaporate most of the moisture through heating to achieve the drying purpose. Therefore, the drying process requires heating, resulting in relatively high internal temperatures within the dryer. Ordinary lid lock mechanisms are easily unlocked, posing a safety hazard, especially for households with children. Utility Model Content

[0004] The purpose of this utility model is to provide a safety lock structure and a wet waste dryer, aiming to improve the problem of weak safety performance of existing wet waste dryers.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a safety lock head structure, comprising:

[0006] A locking device includes a knob, a button that passes through the middle of the knob, and a lock head disposed on the inner end face of the button. A limit part is provided on the inner side of the button, and a linkage part that rotates synchronously is provided between the button and the knob.

[0007] A fixing frame is provided with at least two arc-shaped holes for mounting and rotating the knob, and a mounting hole for mounting the button. The fixing frame is provided with a limiting groove on the inner end face of the mounting hole that fits into the limiting part and restricts the rotation of the knob.

[0008] The length of the button is greater than the length of the knob, and the difference in length between the button and the knob is greater than the depth of the limiting groove.

[0009] And a latch that engages or disengages from the lock head.

[0010] Preferably, the button includes a keycap, a spring, and a sleeve. The inner side of the keycap is provided with a cap rod, the sleeve is disposed between the cap rod and the mounting hole, the limiting part is disposed on the bottom of the sleeve, and the spring is disposed between the keycap and the fixing bracket and sleeved on the cap rod.

[0011] Preferably, a boss is provided on the outer side of the fixing frame, the mounting hole is provided on the boss, and the spring is provided between the boss and the keycap;

[0012] The distance between the button and the boss is greater than the depth of the limiting groove.

[0013] Preferably, the knob is provided with a central hole for receiving the button, and the linkage part is a mating structure of a groove and a protrusion, with the groove axially disposed on the side wall of the central hole;

[0014] The bump is disposed on the outer surface of the button, and multiple sets of the slide groove and the bump are disposed thereon.

[0015] Preferably, a stepped groove is provided on the inner or outer side of the arc-shaped hole, and a hook structure that engages or disengages with the stepped groove is provided on the inner end face of the knob.

[0016] Preferably, the lock head includes a fixing part fixedly disposed with the limiting part and a barb part locked with the latch, wherein the hook position of the barb part is provided with an inclined surface formed by bending towards the fixing part.

[0017] Preferably, the latch is a hook that engages with the barb portion.

[0018] Preferably, the outer end face of the knob or the button is provided with a rotation unlock mark and / or a rotation lock mark.

[0019] A wet waste dryer is also provided, including the safety lock structure as described above.

[0020] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] 1. In this invention, during unlocking, the button is first pressed to disengage the limiting part from the limiting groove; then, the knob is rotated (while keeping the button pressed), causing the button to rotate with the knob, thus separating the hook part from the hook component and unlocking the device. This achieves a simple and safe two-step unlocking process, avoiding accidental operation and situations where children may unlock the device, thereby improving safety. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the safety lock head structure described in this utility model;

[0023] Figure 2 This is a cross-sectional view of the safety lock head structure described in this utility model;

[0024] Figure 3This is an exploded view of the safety lock head structure described in this utility model;

[0025] Figure 4 This is a front view of the safety lock head structure described in this utility model;

[0026] Figure 5 This is a schematic diagram of the safety lock head structure described in this utility model installed on a fixed frame.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Locking component; 101. Knob; 102. Button; 103. Lock head; 104. Linkage mechanism;

[0029] 1011. Rotary unlock indicator; 1012. Rotary lock indicator; 1013. Hook structure; 1014. Center hole;

[0030] 1021. Limiting part; 1022. Keycap; 1023. Spring; 1024. Sleeve; 1025. Keycap stem;

[0031] 1031. Fixing part; 1032. Barb part; 1033. Inclined surface;

[0032] 1041. Slide groove; 1042. Protrusion;

[0033] 20. Fixing bracket; 201. Arc-shaped hole; 202. Mounting hole; 203. Limiting groove; 204. Boss;

[0034] 30. Lock. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0036] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0038] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Example 1

[0040] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, this embodiment provides a safety lock head 103 structure, including a locking component 10, a fixing frame 20, and a latch 30. The locking component 10 includes a knob 101, a button 102 that passes through the middle of the knob 101, and a lock head 103 disposed on the inner end face of the button 102. A limiting part 1021 is provided on the inner end side of the button 102, and a linkage part 104 that rotates synchronously is provided between the button 102 and the knob 101. The fixing frame 20 is provided with at least two arc-shaped holes 201 for mounting and rotating the knob 101, and a mounting hole 202 for mounting the button 102. The inner end face of the fixing frame 20 located in the mounting hole 202 is provided with a limiting groove 203 that fits into the limiting part 1021 and restricts the rotation of the knob 101. The length of the button 102 is greater than the length of the knob 101, and the length difference between the button 102 and the knob 101 is greater than the depth of the limiting groove 203. The latch 30 is locked or disengaged from the lock head 103.

[0041] In the initial state, button 102 is engaged in the limiting groove 203 by the limiting part 1021, and the knob 101 and button 102 are connected by the linkage part 104, thus preventing the knob 101 from rotating and keeping the lock head 103 and the latch 30 locked. When unlocking is required, button 102 is pressed, and the limiting part 1021 disengages from the limiting groove 203; then the knob 101 is rotated (while keeping button 102 pressed), causing button 102 to rotate with the knob 101, thereby unlocking the lock head 103.

[0042] Furthermore, the end of the knob 101 has a protruding support foot for fixing it to the arc-shaped hole 201 and rotating within the arc-shaped hole 201, thus achieving the purpose of fixing and rotating the knob 101. To improve the operational stability of the knob 101, two, three, or four arc-shaped holes 201 can be provided to form multiple fixed support points, thereby effectively dispersing the pressure when the knob 101 rotates and increasing the stability and durability of the overall structure. Simultaneously, the length of the arc-shaped hole 201 is the stroke of the knob 101's rotation; thus, the required stroke can be obtained by designing the arc length of the arc-shaped hole 201.

[0043] like Figure 1 As shown, in this embodiment, a stepped groove is provided on the inner or outer side of the arc-shaped hole 201, and a hook structure 1013 is provided on the inner end face of the knob 101 to engage or disengage with the stepped groove. The hook structure 1013 and the stepped groove can be engaged or disengaged to facilitate the installation or removal of the knob 101, making it simple and convenient to use.

[0044] like Figure 3 As shown, in this embodiment, the knob 101 is provided with a central hole 1014 for accommodating the button 102. The linkage part 104 is a mating structure of a groove 1041 and a protrusion 1042. The groove 1041 is axially disposed on the side wall of the central hole 1014; the protrusion 1042 is disposed on the outer surface of the button 102, and multiple sets of grooves 1041 and protrusions 1042 are provided. Thus, through the design of the groove 1041, the button 102 can slide axially along the central hole 1014 of the knob 101. Simultaneously, the mating of the protrusion 1042 and the groove 1041 ensures that the button 102 remains stable during sliding, preventing jamming or detachment. Furthermore, the synchronous rotation of the knob 101 and the button 102 ensures smooth and reliable unlocking operation. This achieves a simple and safe two-step unlocking process, avoiding accidental operation and situations where children may unlock the device, thus improving safety.

[0045] like Figure 2 and Figure 3 As shown, in this embodiment, button 102 includes keycap 1022, spring 1023 and sleeve 1024. The inner side of keycap 1022 is provided with cap rod 1025. Sleeve 1024 is disposed between cap rod 1025 and mounting hole 202. Limiting part 1021 is disposed on the bottom of sleeve 1024. Spring 1023 is disposed between keycap 1022 and fixing bracket 20 and sleeved on cap rod 1025.

[0046] Specifically, by connecting the cap rod 1025 and the limiting part 1021 through the sleeve 1024, one end can be engaged in the limiting groove 203 of the fixing frame 20, and the other end can be secured between the keycap 1022 and the fixing frame 20 by the spring 1023, achieving a stable installation of the button 102. At the same time, the elasticity of the spring 1023 can provide a return force for the keycap 1022. During operation, the elasticity of the spring 1023 allows the keycap 1022 to quickly return to its original position after being pressed, ensuring convenient operation and durability.

[0047] Furthermore, such as Figure 5 As shown, in this embodiment, a boss 204 is provided on the outer surface of the fixing bracket 20, and a mounting hole 202 is provided on the boss 204. A spring 1023 is provided between the boss 204 and the keycap 1022. This forms a limiting installation for the spring 1023, which can ensure the stability of the spring 1023 and prevent the spring 1023 from shifting or falling off. The distance between the button 102 and the boss 204 is greater than the depth of the limiting groove 203, so as to ensure that the limiting part separates from the limiting groove when the button moves axially.

[0048] like Figure 2 As shown, in this embodiment, the lock head 103 includes a fixing part 1031 fixedly disposed with the limiting part 1021 and a barb part 1032 locked with the latch 30. The hook position of the barb part 1032 is provided with an inclined surface 1033 formed by bending towards the fixing part 1031. The latch 30 is a hook that engages with the barb part 1032. In this way, locking and unlocking are achieved through the barb part 1032 and the hook, forming the locking and unlocking structure of the safety lock head 103. At the same time, the design of the inclined surface 1033 allows the hook to smoothly embed into the barb part 1032 when locking, and to easily separate during unlocking, ensuring stability and safety during operation and improving the durability and practicality of the overall structure.

[0049] like Figure 4 As shown, in this embodiment, the outer end face of the knob 101 or button 102 is provided with a rotation unlock mark 1011 and / or a rotation lock mark 1012, which can form an indication for operation and unlocking. Through the clear display of the indication, the user can quickly identify the unlocking status, reduce the difficulty of operation, and further enhance the user experience. At the same time, the design of the indication is cleverly integrated into the overall structure, without affecting the aesthetics, ensuring a perfect combination of appearance and function of the lock.

[0050] Example 2

[0051] This embodiment provides a wet waste dryer (not shown), including a safety lock 103 structure as described in Embodiment 1. To unlock, first press button 102, causing the limiting part 1021 to disengage from the limiting groove 203; then rotate knob 101 (while keeping button 102 pressed), causing button 102 to rotate along with knob 101, separating the barb part 1032 from the hook, thus unlocking the lock 103. This achieves a simple and safe two-step unlocking process, avoiding accidental operation and situations where children might unlock it, thereby improving safety.

[0052] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A safety lock head structure, characterized by, include: A locking device includes a knob, a button that passes through the middle of the knob, and a lock head disposed on the inner end face of the button. A limit part is provided on the inner side of the button, and a linkage part that rotates synchronously is provided between the button and the knob. A fixing frame is provided with at least two arc-shaped holes for mounting and rotating the knob, and a mounting hole for mounting the button. The fixing frame is provided with a limiting groove on the inner end face of the mounting hole that fits into the limiting part and restricts the rotation of the knob. The length of the button is greater than the length of the knob, and the length difference between the button and the knob is greater than the depth of the limiting groove. And a latch that engages or disengages from the lock head.

2. The safety lock structure according to claim 1, characterized in that: The button includes a keycap, a spring, and a sleeve. The inner side of the keycap is provided with a cap rod. The sleeve is disposed between the cap rod and the mounting hole. The limiting part is disposed on the bottom of the sleeve. The spring is disposed between the keycap and the fixing bracket and is sleeved on the cap rod.

3. The safety lock structure according to claim 2, characterized in that: A boss is provided on the outer side of the fixing frame, the mounting hole is provided on the boss, and the spring is provided between the boss and the keycap; The distance between the button and the boss is greater than the depth of the limiting groove.

4. The safety lock structure according to claim 1, characterized in that: The knob is provided with a central hole for accommodating the button, and the linkage part is a mating structure of a slide groove and a protrusion, with the slide groove axially disposed on the side wall of the central hole; The bump is disposed on the outer surface of the button, and multiple sets of the slide groove and the bump are disposed thereon.

5. The safety lock structure according to claim 1, characterized in that: The inner or outer side of the arc-shaped hole is provided with a stepped groove, and the inner end face of the knob is provided with a hook structure that engages or disengages with the stepped groove.

6. The safety lock structure according to claim 1, characterized in that: The lock head includes a fixing part fixedly disposed with the limiting part and a barb part locked with the latch. The hook position of the barb part is provided with an inclined surface formed by bending towards the fixing part.

7. The safety lock structure according to claim 6, characterized in that: The latch is a hook that engages with the barb portion.

8. The safety lock structure according to claim 1, characterized in that: The outer end face of the knob or button is provided with a rotation unlock mark and / or a rotation lock mark.

9. A wet waste dryer, characterized in that, Includes the security lock structure as described in any one of claims 1 to 8.