Safety door lock device and household appliance
By introducing a multi-stage monitoring mechanism into the safety door lock device of household appliances, the locking sensor and interlocking sensor are used to detect the stroke and the action of the locking mechanism, the safety hazards caused by the unfixed locking are solved, and higher safety and reliability are achieved.
Patent Information
- Application Number
- CN202422417908.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing household appliance safety door lock device cannot be fixed when the lock hook part does not reach the lock position, resulting in safety hazards and further strengthening of safety.
The multi-stage door lock monitoring mechanism is adopted to detect the stroke of the lock hook and the action of the lock mechanism through the lock sensor and the interlocking sensor to ensure that the lock hook is correctly mounted on the lock block, and a multi-stage locking and fixing is achieved using the lock motor and electromagnetic switch.
Multi-level monitoring of the lock hook is realized to ensure that the lock hook is properly clamped, improve the safety and reliability of electrical appliances, and avoid safety hazards caused by the unfixed lock hook.
Smart Images
Figure CN223135876U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of door locks, in particular to a safety door lock device and a household appliance. Background Art
[0002] Existing household appliances such as microwave ovens and washing machines are generally provided with a safety door lock device, which generally has a child lock function to improve the safety of using the appliance. It generally includes a locking mechanism provided on the body and a locking hook member provided on the door body. When the door body covers the body, the locking hook member is stuck on the locking mechanism, and the locking hook member is fixed on the locking mechanism by an electric control method to prevent the locking hook member from detaching from the locking mechanism due to reasons such as accidental touch, thereby improving the safety of using the appliance. When it is necessary to open the door, it is also unlocked by an electric control method, so that the locking hook member can be separated from the locking mechanism, thereby achieving the purpose of accurate unlocking. There are also cases where more than two locking hook members are used to further improve the tightness of the connection between the door body and the body, thereby further improving the safety of using the appliance.
[0003] However, if the locking hook member does not reach the position of the lock catch, even if the electric control is activated, the locking hook member cannot be locked and fixed on the locking mechanism, and ultimately the door body cannot be locked on the body. At this time, if the appliance is started, it will surely cause a great safety hazard. Therefore, the safety of the door lock device must be further strengthened. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a safety door lock device that adopts multi-level door lock monitoring to improve the safety of use.
[0005] The technical problem to be solved by the utility model is also to provide a household appliance including the safety door lock device.
[0006] To solve the above technical problems, the utility model provides a safety door lock device, which includes a locking mechanism and a locking hook member. The locking mechanism includes a support frame, a locking mechanism, a locking sensor, and a first interlock sensor installed on the support frame. A first lock catch block is provided on the support frame; the locking hook member includes a first locking hook; the first interlock sensor is provided on one side of the first lock catch block, and both the locking mechanism and the locking sensor are provided above the first lock catch block;
[0007] The first locking hook is stuck on the first lock catch block, and the first locking hook is in contact with the first interlock sensor; the locking mechanism is in contact with the first locking hook to fix the first locking hook on the first lock catch block, and the locking mechanism is in contact with the locking sensor.
[0008] As an improvement of the above solution, the locking mechanism includes a locking motor and a locking arm. The locking motor is connected to the locking arm, and the locking motor drives the locking arm to make the locking arm contact or separate from the first locking hook.
[0009] As an improvement of the above solution, the locking mechanism is an electromagnetic switch.
[0010] As an improvement of the above solution, a second locking block is provided on the support frame; the locking hook member further includes a second locking hook.
[0011] The locking mechanism further includes a detection mechanism for detecting whether the second locking hook is engaged with the second locking block.
[0012] As an improvement of the above solution, both the first locking block and the second locking block are inclined.
[0013] The first locking block is inclined upward from near the first locking hook to away from the first locking hook.
[0014] The second locking block is inclined upward from near the second locking hook to away from the second locking hook.
[0015] As an improvement of the above solution, the detection mechanism includes a second interlocking sensor, and the second interlocking sensor is arranged below the second locking block.
[0016] The second locking hook is engaged with the second locking block, and the second locking hook abuts against the second interlocking sensor.
[0017] As an improvement of the above solution, the detection mechanism further includes a linkage assembly. The linkage assembly includes a linkage block arranged below the second locking block, and the linkage block is rotatably connected to the support frame.
[0018] The second locking hook is engaged with the second locking block, and the second locking hook abuts against the linkage block, so that the linkage block abuts against the second linkage lock sensor.
[0019] As an improvement of the above solution, the detection mechanism further includes a locking hook sensor, and the locking hook sensor is arranged above the second locking block.
[0020] The second locking hook is engaged with the second locking block, and the second locking hook abuts against the locking hook sensor.
[0021] As an improvement of the above solution, the locking sensor, the first interlocking sensor, the second interlocking sensor and the locking hook sensor are all microswitches.
[0022] Correspondingly, the present utility model further provides a household appliance, including a machine body, a door body and the above-mentioned safety door lock device. The locking mechanism is installed on the machine body, and the locking hook member is installed on the door body.
[0023] Implementing the present utility model has the following beneficial effects:
[0024] The safety door lock device of the present utility model is provided with a locking sensor and a first interlock sensor. Through the first interlock sensor, it can sense whether the first locking hook is clamped on the first locking block, that is, the first interlock sensor is used to detect whether the stroke of the first locking hook is in place. Then, the locking mechanism is driven to press the first locking hook against the first locking block to prevent the first locking hook from disengaging from the first locking block, playing a role in locking and fixing the door body. The locking sensor is used to detect whether the locking mechanism operates to ensure that the locking mechanism has locked the first locking hook on the first locking block. When both the locking sensor and the first interlock sensor are actuated, the circuit is conducted and the electrical appliance can work normally. The present utility model simultaneously monitors the in-place of the stroke of the locking hook and the in-place of the operation of the locking mechanism, realizing multi-level door lock monitoring and further improving the use safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a reference diagram of the use state of the safety door lock device of the present utility model;
[0026] Figure 2 is Figure 1 a structural schematic diagram of the safety door lock device;
[0027] Figure 3 is Figure 2 a structural schematic diagram of the locking mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the text of the present utility model are only based on the drawings of the present utility model, and they are not specific limitations on the present utility model.
[0029] See Figures 1-3 , the present utility model discloses a safety door lock device, including a locking mechanism and a locking hook member 2. The locking mechanism includes a support frame 1 and a locking mechanism, a locking sensor 5 and a first interlock sensor 6 installed on the support frame 1. The support frame 1 is provided with a first locking block 11; the locking hook member 2 includes a first locking hook 21; the first interlock sensor 6 is arranged on one side of the first locking block 11, and both the locking mechanism and the locking sensor 5 are arranged above the first locking block 11; the locking mechanism is used to lock and fix the first locking hook 21 on the first locking block 11, the locking sensor 5 is used to sense the operation of the locking mechanism, and the first interlock sensor 6 is used to sense whether the stroke of the first locking hook 21 is in place, that is, whether it is clamped on the first locking block 11.
[0030] The first locking hook 21 is clamped on the first locking block 11, and the first locking hook 21 abuts against the first interlocking sensor 6; the locking mechanism abuts against the first locking hook 21 to lock and fix the first locking hook 21 on the first locking block 11, and the locking mechanism abuts against the locking sensor 5.
[0031] The safety door lock device of the present utility model is provided with a locking sensor and a first interlocking sensor. The first interlocking sensor can sense whether the first locking hook is clamped on the first locking block, that is, the first interlocking sensor is used to detect whether the stroke of the first locking hook is in place. Then, the locking mechanism is driven to press the first locking hook against the first locking block to prevent the first locking hook from disengaging from the first locking block, playing a role in locking and fixing the door body. The locking sensor is used to detect whether the locking mechanism acts to ensure that the locking mechanism has locked the first locking hook on the first locking block. When both the locking sensor and the first interlocking sensor are actuated, the circuit is turned on and the electrical appliance can work normally. The present utility model simultaneously monitors the in-place of the stroke of the locking hook and the in-place of the action of the locking mechanism, realizes multi-stage door lock monitoring, and further improves the use safety.
[0032] Preferably, as Figures 1-3 shown, the locking mechanism includes a locking motor 3 and a locking arm 4. The locking motor 3 is connected to the locking arm 4. The locking motor 3 drives the locking arm 4 so that the locking arm 4 abuts against or separates from the first locking hook 21. The locking motor drives the locking arm to rotate, so that the locking arm rotates by a certain angle, is placed above the first locking hook and abuts against the first locking hook to lock and fix the first locking hook on the first locking block. At the same time, the locking arm abuts against the locking sensor, causing the locking sensor to act, thereby monitoring that the locking mechanism is locked in place. When unlocking, the locking motor drives the locking arm to rotate by a certain angle, so that the locking arm separates from the first locking hook. At this time, when the hook member is pulled out, the first locking hook and the first locking block can be separated. Figure 1 、 3 is the unlocking state of the locking arm, Figure 2 is the locking state of the locking arm.
[0033] Preferably, the locking mechanism is an electromagnetic switch (not shown in the figure). When the telescopic rod of the electromagnetic switch extends out, the first locking hook can be pressed and fixed on the first locking block to lock the door. At the same time, its telescopic rod abuts against the locking sensor, causing the locking sensor to act, thereby monitoring that the locking mechanism is locked in place. When unlocking, the electromagnetic switch is controlled to retract the telescopic rod.
[0034] It should be noted that the locking mechanism can also adopt other structures as long as it can achieve the purpose of locking and fixing the first locking hook on the first locking block.
[0035] Furthermore, as Figures 2-3As shown, a second locking block 12 is provided on the support frame 1, and the second locking block 12 is arranged below the first locking block 11; the locking hook member 2 further includes a second locking hook 22, the second locking hook 22 is arranged below the first locking hook 21, and the first locking hook 21 and the second locking hook 22 are on the same plane and face the same direction. The setting of the two locking hooks can further improve the safety of the electrical appliance during use.
[0036] Preferably, as Figures 2-3 shown, both the first locking block 11 and the second locking block 12 are inclined; the first locking block 11 is inclined upward from near the first locking hook 21 to away from the first locking hook 21; the second locking block 12 is inclined upward from near the second locking hook 22 to away from the second locking hook 22. The first locking block and the second locking block are both inclined, which not only makes it easier for the first locking hook and the second locking hook to be clamped on the first locking block and the second locking block under the guidance of the inclined surface, but also makes the snap connection structure between the first locking hook and the first locking block and between the second locking hook and the second locking block more stable and reliable.
[0037] In order to monitor whether the stroke of the second locking hook is in place, the locking mechanism further includes a detection mechanism for sensing whether the second locking hook 22 is clamped on the second locking block 12. That is, the detection mechanism is used to detect whether the stroke of the second locking hook is in place.
[0038] As Figures 1-3 shown, the detection mechanism includes a second interlock sensor 7, and the second interlock sensor 7 is arranged below the second locking block 12; the second locking hook 22 is clamped on the second locking block 12, and the second locking hook 22 and the second interlock sensor 7 are in contact. When the second locking hook is clamped on the second locking block, the hook part at the bottom end of the second locking hook will contact the second interlock sensor, causing the second interlock sensor to act. The setting of the second interlock sensor is used to monitor whether the stroke of the second locking hook is in place, thereby improving the use safety.
[0039] Preferably, as Figures 1-3 shown, the detection mechanism further includes a hook sensor 9, and the hook sensor 9 is arranged above the second locking block 12; the second locking hook 22 is clamped on the second locking block 12, and the second locking hook 22 and the hook sensor 9 are in contact. When the second locking hook is clamped on the second locking block, the top end of the second locking hook will contact the hook sensor, causing the second interlock sensor to act. The hook sensor and the second interlock sensor cooperate with each other. One sensor monitors and senses from the bottom end of the second locking hook, and the other sensor monitors and senses from the top end of the second locking hook, avoiding errors in the monitoring of one sensor and greatly improving the use safety.
[0040] Preferably, as Figures 2-3As shown, the detection mechanism further includes a linkage assembly. The linkage assembly includes a linkage block 8 disposed below the second locking block 12, and the linkage block 8 is rotatably connected to the support frame 1. The second locking hook 22 is engaged with the second locking block 12, and the second locking hook 22 abuts against the linkage block 8 so that the linkage block 8 abuts against the second linkage lock sensor 7. Since the locking hook sensor is disposed above the second locking block, in order to facilitate installation and avoidance of interference, the present invention further provides a linkage assembly. When the hook portion at the bottom end of the second locking hook is engaged with the second locking block, it will push the linkage block disposed at this position, causing the linkage block to rotate downward and touch the second interlocking sensor, so that the second locking hook indirectly abuts against the second interlocking sensor.
[0041] Preferably, the linkage assembly further includes a torsion spring (not shown in the figure). When the second locking hook pushes the linkage block to rotate, the linkage block acts on the torsion spring, causing it to deform. When the second locking hook and the linkage block are separated, the linkage block is reset by the torsion spring, so as to facilitate the second locking hook to push the linkage block to rotate again and abut against the second interlocking sensor again.
[0042] Preferably, the locking sensor 5, the first interlocking sensor 6, the second interlocking sensor 7, and the locking hook sensor 9 are all microswitches, but not limited thereto.
[0043] Correspondingly, referring to Figures 1-3 , the present invention also discloses a household appliance, including a body 100, a door body 200, and the above-mentioned safety door lock device. The locking mechanism is installed on the body 100, and the locking hook member 2 is installed on the door body 200. The specific structure of the safety door lock device is as described above and will not be elaborated here.
[0044] After the door body 200 is closed, the first locking hook 21 and the second locking hook 22 of the locking hook member 2 are respectively engaged with the first locking block 11 and the second locking block 12 of the support frame 1. At this time, the first locking hook 21 abuts against the first interlocking sensor 6, and the second locking hook 22 abuts against the second interlocking sensor 7 and the locking hook sensor 9 respectively, and the microwave circuit is powered on.
[0045] In the closed door state, the locking mechanism is activated. For example, the locking motor 3 is activated to rotate the locking arm 4, so that the locking arm 4 is placed above the first locking hook 21 and abuts against the first locking hook 21. At the same time, the locking arm abuts against the locking sensor, and the functional circuit conducts electricity, enabling the electrical appliance to work normally. When the electrical appliance is working normally, the locking motor 3 does not act, and the locking arm 4 remains above the first locking hook 21, so that the first locking hook 21 is limited and locked, and the door body 200 cannot be opened, playing a role in safety protection.
[0046] When the work is stopped or the stop button is manually pressed, the control system will give an action instruction to the locking motor 3 to drive the locking arm 4 to move, so that the locking arm 4 is separated from the first locking hook 21. At this time, the door body 200 can be opened normally.
[0047] In summary, the present utility model provides a safety door lock device and a household appliance, which adopt multi-level door lock monitoring to improve the use safety.
[0048] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.
Claims
1. A security door lock device, characterized in that, It includes a locking mechanism and a locking hook member. The locking mechanism includes a support frame and a locking mechanism, a locking sensor, and a first interlock sensor mounted on the support frame. A first locking block is provided on the support frame; the locking hook member includes a first locking hook; the first interlock sensor is provided on one side of the first locking block, and the locking mechanism and the locking sensor are both provided above the first locking block; The first locking hook is clamped on the first locking block, and the first locking hook and the first interlock sensor are in contact; the locking mechanism and the first locking hook are in contact to fix the first locking hook on the first locking block, and the locking mechanism and the locking sensor are in contact.
2. The safety door lock device according to claim 1, characterized in that, The locking mechanism includes a locking motor and a locking arm. The locking motor is connected to the locking arm, and the locking motor drives the locking arm to make the locking arm contact or separate from the first locking hook.
3. The safety door lock device according to claim 1, characterized in that, The locking mechanism is an electromagnetic switch.
4. The safety door lock device according to claim 1, characterized in that, A second locking block is provided on the support frame; the locking hook member further includes a second locking hook; The locking mechanism further includes a detection mechanism for sensing whether the second locking hook is clamped on the second locking block.
5. The safety door lock device according to claim 4, characterized in that, Both the first locking block and the second locking block are inclined; The first locking block is inclined upward from near the first locking hook to away from the first locking hook; The second locking block is inclined upward from near the second locking hook to away from the second locking hook.
6. The safety door lock device according to claim 4, characterized in that, The detection mechanism includes a second interlock sensor, and the second interlock sensor is provided below the second locking block; The second locking hook is clamped on the second locking block, and the second locking hook and the second interlock sensor are in contact.
7. The safety door lock device according to claim 6, wherein, The detection mechanism further includes a linkage assembly. The linkage assembly includes a linkage block provided below the second locking block, and the linkage block is rotatably connected to the support frame; The second locking hook is clamped on the second locking block, and the second locking hook and the linkage block are in contact, so that the linkage block and the second interlock sensor are in contact.
8. The safety door lock device according to claim 6, wherein, The detection mechanism further includes a locking hook sensor, and the locking hook sensor is provided above the second locking block; The second locking hook is clamped on the second locking block, and the second locking hook and the locking hook sensor are in contact.
9. The safety door lock device according to claim 8, characterized in that The locking sensor, the first interlock sensor, the second interlock sensor, and the locking hook sensor are all microswitches.
10. A household appliance, characterized in that, It includes a machine body, a door body, and a safety door lock device as described in any one of claims 1-9. The locking mechanism is installed on the machine body, and the locking hook member is installed on the door body.