CN217760463U

CN217760463U - Oven door lock structure capable of being manually unlocked after power failure

Info

Publication number: CN217760463U
Application number: CN202220394863.1U
Authority: CN
Inventors: 杨敬辉; 黄张德
Original assignee: Guangdong Haixin Intelligent Kitchen Co ltd
Current assignee: Guangdong Haixin Intelligent Kitchen Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-11-08
Anticipated expiration: 2032-02-25

Abstract

The utility model relates to an oven door lock structure capable of being manually unlocked after power failure, which comprises a bottom plate, a latch hook arranged on the bottom plate, a driving device used for driving the latch hook to stretch and swing, a first limit structure and a second limit structure, wherein the second limit structure comprises a second limit post and a second limit groove matched with the second limit post, the second limit post is arranged on the bottom plate, the latch hook is arranged in the second limit groove, and the width W1 of the second limit groove is greater than the width of the second limit post; an elastic component is connected between the bottom plate and the lock hook, one end of the elastic component is connected with the bottom plate, and the other end of the elastic component is connected with the lock hook. Compared with the traditional door lock structure with an electric locking oven door, the door lock structure eliminates the defects of the movement limiting structure design; the electric locking and unlocking mode and the manual unlocking mode coexist, and the trouble that a user cannot manually unlock is solved.

Description

Oven door lock structure capable of being manually unlocked after power failure

Technical Field

The utility model belongs to the technical field of the technique of oven and specifically relates to but oven lock structure of manual unblock after the outage.

Background

At present, all ovens on the market are provided with door lock structures for electrically locking oven doors; however, this type of door lock structure has the following drawbacks: because the motion limiting structure for limiting the electric locking or unlocking is arranged, the motion limiting structure is usually a limiting groove and a limiting column; the width of the limiting column is close to that of the limiting groove, and a small gap is formed between the limiting column and the limiting groove, so that the structure can be only used under the condition of electrically locking or unlocking; the oven door lock is limited by the influence of a movement limiting structure of the lock hook, and once the problems of power failure after the lock hook is locked, damage of a circuit element of an oven control panel or damage of a synchronous motor (power on and no work) and the like occur, the oven door can be locked by the lock hook assembly, and the oven electric door cannot be normally opened; because of foretell spacing groove and spacing post's structure also can't act on the latch hook and carry out manual unblock, and then can not manually open, bring inconvenience and puzzlement for the user.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem of the prior art, the utility model provides a but oven lock structure of manual unblock after the outage, when it can solve oven electric door lock and break down or the outage, can not manually open the problem of electric door because of being limited by the motion limit structure's of latch hook influence, and then improved the use convenience.

In order to achieve the above object, the utility model discloses a main technical scheme include:

a kind of oven door lock structure that can be unlocked manually after the power failure, including the bottom plate, lock hook mounted on bottom plate, used for driving the lock hook to stretch and swing and first limit structure used for limiting lock hook to stretch and swing, also include the second limit structure, the second limit structure includes the second spacing post and second spacing groove adaptive to second spacing post, the second spacing post is mounted on bottom plate, the second spacing groove locates the lock hook, the width W1 of the second spacing groove is greater than the width of the second spacing post; an elastic component is connected between the bottom plate and the lock hook, one end of the elastic component is connected with the bottom plate, and the other end of the elastic component is connected with the lock hook.

The groove width W1 of the second limiting groove is larger than that of the second limiting column, and the elastic part is combined to provide acting force for the lock hook; when the electric locking or unlocking is normally used, the elastic component provides tension or elasticity to enable the locking hook, and then the driving device can drive the locking hook to stretch and swing along the limiting structure to lock or unlock; when manual unblanking, as long as the user acts on the latch hook to provide the effort along with the opposite direction that elastomeric element provided the effort for the latch hook, can manually stir the latch hook and unblock, thereby let electronic locking, unblank and manual unblank coexisting.

Preferably, the second limit groove is at least provided with a first limit edge and a second limit edge for limiting the locking hook to stretch and swing, the first limit edge extends along the stretching direction of the locking hook, and the second limit edge extends along the direction in which the elastic component provides acting force; the second limiting column can abut against the first limiting edge or the second limiting edge.

When the electric locking or unlocking is carried out, the elastic component provides acting force; when the driving device drives the lock hook to stretch and swing, the second limiting column always abuts against the first limiting edge and moves along the first limiting edge, so that the lock hook can normally stretch and swing along the track of the first limiting structure when being locked or unlocked electrically; when the manual unlocking is carried out, a user acts on the lock hook, the lock hook acts in the reverse direction of acting force provided for the lock hook along the elastic component, when the lock hook acts, the second limiting column is changed from being abutted against the first limiting edge to being abutted against the second limiting edge, the manual unlocking can be completed by continuously acting on the lock hook, and the second limiting edge is mainly used for limiting the motion track during the manual unlocking.

Furthermore, the first limiting structure comprises a first limiting column and a first limiting groove matched with the first limiting column, and the first limiting column can slide along the first limiting groove.

Furthermore, the first limiting groove is V-shaped and is arranged along the telescopic direction of the lock hook;

the lock hook can drive the lock hook to complete stretching and swinging along the movement track of the first limiting column and the first limiting groove, and further electric locking or unlocking is realized.

Furthermore, the bottom plate is provided with a first installation clamping position, and the lock hook is provided with a second installation clamping position; the elastic component is a tension spring, one end of the tension spring is connected with the first installation clamping position, and the other end of the tension spring is connected with the second installation clamping position;

the tension spring is convenient to install through the arrangement of the first installation clamping position and the second installation clamping position; the tension spring provides tension for the lock hook and is used for pulling the lock hook, so that the telescopic motion track and the swinging motion track are stable when the electric locking or unlocking is ensured, and the manual unlocking can be compatible.

Furthermore, an eccentric wheel used for shifting the locking hook to stretch is arranged at the output end of the driving device.

Furthermore, the lock hook is provided with a first slot position, and the eccentric wheel is arranged in the first slot position and drives the lock hook to stretch.

Further, the bottom plate is provided with a fixing sheet for mounting a driving device.

Further, the bottom plate is provided with a first microswitch and a second microswitch which are electrically connected with the driving device and used for detecting the working state of the lock hook.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the arrangement of the elastic component is combined by arranging a second limiting groove and a second limiting column, wherein the groove width W1 of the second limiting groove is larger than that of the second limiting column; when the electric control part of the oven door fails and cannot be unlocked by using the electric lock, the second limiting groove is larger than the second limiting column, and the locking hook swings in the opposite direction to manually unlock by applying a pulling force which acts on the locking hook and is opposite to the acting force of the elastic part on the locking hook; the lock hook can also stretch and swing to realize electric locking or unlocking through the limitation of the first limit structure; compared with the traditional door lock structure with an electric locking oven door, the door lock structure eliminates the defects of the movement limiting structure design; the electric locking and unlocking mode and the manual unlocking mode can coexist, the trouble that a user cannot manually unlock is solved, and the oven which is more convenient to use is provided for the user;

2. because the second limiting groove is at least provided with a first limiting edge and a second limiting edge for limiting the extension and the swing of the lock hook, when the lock is electrically locked or unlocked, the second limiting column always abuts against the first limiting edge, so that the action of extension and the swing of the lock hook along the motion track of the limiting structure can be reliably carried out; when the door lock is manually unlocked, the second limiting column always abuts against the second limiting edge, so that the movement direction of the lock hook is stable and reliable when the door lock structure is used during limiting and manual unlocking;

3. because drive arrangement adopts the eccentric wheel to stir the latch hook, when needing manual unblanking, can not drag drive arrangement when the user stirs the latch hook, and then required dynamics is little when making manual unblanking, convenient to use person's operation.

Drawings

Fig. 1 is a schematic perspective view of an oven door lock structure that can be manually unlocked after power failure according to an embodiment of the present invention;

fig. 2 is a diagram illustrating an oven door lock structure that can be manually unlocked after power failure according to an embodiment of the present invention;

fig. 3 is an exploded view of a manually unlockable oven door lock structure after power failure according to an embodiment of the present invention;

FIG. 4 is a partial enlarged view of the part A in FIG. 3 (when the lock is unlocked manually, the second limiting column moves along the second limiting edge schematically);

fig. 5 is a diagram illustrating a manual unlocking force of the oven door lock structure capable of being manually unlocked after power failure according to an embodiment of the present invention.

[ instruction of reference ]

1. A base plate; 11. a first limit structure; 111. a first limit post; 112. a first limit groove; 12. A second limiting structure; 121. a second limit post; 122. a second limit groove; 123. a first limit edge; 124. a second limit edge; 13. a first mounting clamp position; 14. a fixing sheet; 15. a first microswitch; 16. a second microswitch;

2. a latch hook; 21. a first mounting clamp position; 22. a first slot position; 221. a baffle plate;

3. a drive device; 31. an eccentric wheel;

4. an elastic member.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

As shown in fig. 1-5, the oven door lock structure capable of being manually unlocked after power failure according to an embodiment of the present invention includes a bottom plate 1, a latch hook 2, a driving device and a first limiting structure 11 for limiting the extension and the swing of the latch hook

Referring to fig. 1 to 4, a latch hook 2 and a driving device 3 are mounted on a base plate 1, and the driving device 3 is connected to the latch hook 2 and drives the latch hook to extend and retract and swing along a first limiting structure 11; the locking mechanism further comprises a second limiting structure 12, wherein the second limiting structure 12 comprises a second limiting column 121 and a second limiting groove 122 matched with the second limiting column 121, the second limiting column 121 is arranged on the bottom plate 1, the second limiting groove 122 is arranged in the locking hook 2, and the width W1 of the second limiting groove 122 is greater than the width of the second limiting column 121; an elastic component 4 is connected between the bottom plate 1 and the latch hook 2, one end of the elastic component 4 is connected with the bottom plate 1, and the other end of the elastic component 4 is connected with the latch hook 2;

when the manual unlocking is carried out, a user can hook the locking hook 2 by using auxiliary tools such as iron wires and the like, then the locking hook 2 is pulled to provide reverse pulling opposite to acting force for the elastic component 4, and the locking hook 2 can swing and is separated from the oven door, so that the manual unlocking is realized; it should be noted here that the second position-limiting column 121 and the second position-limiting groove 122 can be interchanged between the base plate 1 and the hook 2, and the structures of the second position-limiting column 121 and the second position-limiting groove 122 can be modified according to actual needs as long as the manual unlocking path is not interfered.

Referring to fig. 3 and 4, preferably, in one embodiment of the present application; the second limiting groove 122 is at least provided with a first limiting edge 123 and a second limiting edge 124 for limiting the telescopic movement and the swinging movement of the lock hook 2, the first limiting edge 123 extends along the telescopic direction of the lock hook 2, and the second limiting edge 124 extends along the direction of the acting force provided by the elastic component 4; the second position-limiting pillar 121 can abut against the first position-limiting edge 123 or the second position-limiting edge 124.

When the electric locking or unlocking is performed, the second limiting column 121 is always abutted against the first limiting edge 123 by the acting force provided by the elastic component 4; when the driving device 3 drives the locking hook 2 to stretch, the locking hook 2 can stretch and swing through the motion track of the first limiting structure 11, so that electric locking or unlocking is realized; in this process, since the groove width W1 of the second limiting groove 122 is greater than the width of the second limiting column 121, the elastic component 4 is used to provide an acting force for the locking hook 2, so that the driving device 3 can normally drive the locking hook 2 to electrically lock or unlock; when unlocking manually, the user hooks the locking hook 2 with auxiliary tools such as iron wires and pulls along the opposite direction of the acting force provided by the elastic component 4 for the locking hook 2, so that the second limiting column 121 is abutted against the second limiting edge 124, and the movement track during limiting manual unlocking can be manually unlocked until the locking hook 2 is pulled to be separated from the oven door.

Referring to fig. 2 and 3, preferably, in one embodiment of the present application; the first position-limiting structure 11 includes a first position-limiting post 111 and a first position-limiting groove 112 corresponding to the first position-limiting post 111, and the first position-limiting post 111 can slide along the first position-limiting groove 112;

when locking or unblock electronically, drive arrangement 3 drive latch hook 2 displacement, first spacing post 111 on the latch hook 2 can carry out the displacement in first spacing groove 112, for latch hook 2 is flexible and swing provides limiting displacement, and then realizes electronic locking, unblanks.

Referring to fig. 2 and 3, preferably, in one embodiment of the present application; the first limiting groove 112 is in a V shape, and the first limiting groove 112 is arranged along the extension direction of the locking hook 2;

if the locking hook 2 is extended and retracted left and right, the first limiting column 111 is extended and swung to complete locking when being displaced from the left end to the right end of the first limiting groove 112; when the first position-limiting column 111 is displaced from the right end to the left end of the first position-limiting groove 112, it retracts and swings to complete the unlocking.

Referring to fig. 1 and 3, preferably, in one embodiment of the present application; the bottom plate 1 is provided with a first mounting clamp position 13, and the latch hook 2 is provided with a second mounting clamp position 21; the elastic component 4 is a tension spring, one end of the tension spring is connected with the first installation clamping position 13, and the other end of the tension spring is connected with the second installation clamping position 21;

wherein, the tension spring generates tension; in a normal state, the tension spring pulls the latch hook 2, so that the second limiting column 121 always abuts against the first limiting edge 123 of the second limiting groove 122, and normal electric locking and unlocking can be performed; when manually unlocking, a user pulls the locking hook 2 through auxiliary tools such as iron wires and the like, and pulls the locking hook 2 along the opposite direction of the tension force generated by the tension spring, so that the lock can be manually unlocked, and in the manual unlocking process, the second limiting column 121 abuts against the second limiting edge 124.

Referring to fig. 1-3, preferably, in one embodiment of the present application; the output end of the driving device 3 is provided with an eccentric wheel 31 for toggling the locking hook 2 to stretch;

the locking hook 2 is provided with a first slot 22, and the eccentric wheel 31 is limited in the first slot 22; specifically, the first slot 22 is formed by two blocking pieces 221 formed by bending the locking hook 2, and the width of the first slot 22 is greater than that of the eccentric wheel 31; thus, the eccentric wheel 31 is constrained to be non-fixedly connected in the first slot 22; with the structure, when the user manually acts on the lock hook 2 to unlock, the motor cannot be pulled to rotate reversely, so that the manual unlocking is realized, the needed force is small, and the use convenience of the user is further improved. And the bottom plate 1 is provided with a fixing piece 14 for installing the driving device 3, so that the driving device 3, the lock hook 2 and the bottom plate 1 are stacked from top to bottom, the whole structure is compact, and the bottom plate can be matched with and installed in ovens with different specifications. The driving device 3 is preferably a stepping motor, and the eccentric wheel 31 is mounted at the end of the rotating shaft of the stepping motor.

Referring to fig. 1-3, preferably, in one embodiment of the present application; the bottom plate 1 is provided with a first microswitch 15 and a second microswitch 16 which are electrically connected with the driving device 3 and used for detecting the working state of the lock hook 2;

the first microswitch 15 and the second microswitch 16 are arranged along the extension direction of the lock hook 2, if the lock hook 2 extends out for locking, the lock hook 2 touches the second microswitch 16, and the second microswitch 16 controls the driving device 3 to stop, so that locking is completed; if the lock hook 2 retracts to unlock, the lock hook 2 touches the first microswitch 15, and the second microswitch 15 controls the driving device 3 to stop, so that unlocking is completed.

Referring to fig. 1 to 5, the following is a detailed description of the operation principle of the oven door lock structure capable of being manually unlocked after power failure of the present invention:

when the lock is locked electrically, the stepping motor drives the eccentric wheel 31 to rotate reversely, so as to toggle the lock hook 2 to extend out; in the process of extending the locking hook 2, the tension spring provides tension for the locking hook 2 so that the second limiting column 121 always abuts against the first limiting edge 123 of the second limiting groove 122; the first limit column 111 of the lock hook 2 extends and swings along the limited track of the first limit groove 112 of the bottom plate 1 until the lock hook 2 triggers the second microswitch 16 to control the stepping motor to stop working, and locking is completed;

when the lock is unlocked electrically, the stepping motor drives the eccentric wheel 31 to rotate in the forward direction, and then the lock hook 2 is pulled to retract; in the retracting process of the locking hook 2, the tension spring provides tension for the locking hook 2 so that the second limiting column 121 always abuts against the first limiting edge 123 of the second limiting groove 122; the first limit column 111 of the lock hook 2 retracts and swings along the limited track of the first limit groove 112 of the bottom plate 1 until the lock hook 2 triggers the first microswitch 16 to control the stepping motor to stop working, so that unlocking is completed;

during manual unlocking, the lock hook 2 is in an extending state, the lock hook 2 is hooked out through auxiliary tools such as iron wires and the like, then the lock hook 2 is pulled to move along the opposite direction of the tensile force provided by the tension spring, and in the process, the second limiting column 121 always abuts against the second limiting edge 124 and is used for limiting the movement track of the lock hook 2 during manual unlocking; and the manual unlocking can be completed until the latch hook 2 is pulled to displace and is separated from the oven door.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. The utility model provides an oven lock structure that can manual unblock after outage, including bottom plate (1), install latch hook (2) on bottom plate (1), be used for drive latch hook (2) flexible and wobbling drive arrangement (3) and be used for flexible and wobbling first limit structure (11) of spacing latch hook, its characterized in that:

the locking mechanism further comprises a second limiting structure (12), wherein the second limiting structure (12) comprises a second limiting column (121) and a second limiting groove (122) matched with the second limiting column (121), the second limiting column (121) is arranged on the bottom plate (1), the second limiting groove (122) is formed in the locking hook (2), and the width (W1) of the second limiting groove (122) is larger than that of the second limiting column (121); an elastic component (4) is connected between the bottom plate (1) and the lock hook (2), one end of the elastic component (4) is connected with the bottom plate (1), and the other end of the elastic component is connected with the lock hook (2).

2. The oven door lock structure that can be manually unlocked after power failure according to claim 1, wherein: the second limiting groove (122) is at least provided with a first limiting edge (123) and a second limiting edge (124) which are used for limiting the telescopic movement and the swinging of the lock hook (2), the first limiting edge (123) extends along the telescopic direction of the lock hook (2), and the second limiting edge (124) extends along the direction of the acting force provided by the elastic component (4); the second limiting column (121) can abut against the first limiting edge (123) or the second limiting edge (124).

3. The oven door lock structure that can be manually unlocked after power off according to claim 1 or 2, characterized in that: the first limiting structure (11) comprises a first limiting column (111) and a first limiting groove (112) matched with the first limiting column (111), and the first limiting column (111) can slide along the first limiting groove (112).

4. The oven door lock structure that can be manually unlocked after power off according to claim 3, wherein: the first limiting groove (112) is V-shaped, and the first limiting groove (112) is arranged along the telescopic direction of the locking hook (2).

5. The oven door lock structure that can be manually unlocked after power failure according to claim 1, wherein: the bottom plate (1) is provided with a first installation clamping position (13), and the lock hook (2) is provided with a second installation clamping position (21);

the elastic component (4) is a tension spring, one end of the tension spring is connected with the first installation clamping position (13), and the other end of the tension spring is connected with the second installation clamping position (21).

6. The oven door lock structure that can be manually unlocked after power failure according to claim 1, wherein: the output end of the driving device (3) is provided with an eccentric wheel (31) for shifting the locking hook (2) to stretch.

7. The oven door lock structure that can be manually unlocked after power failure according to claim 6, wherein: the lock hook (2) is provided with a first slot position (22), and the eccentric wheel (31) is arranged in the first slot position (22) and drives the lock hook (2) to stretch.

8. The oven door lock structure that can be manually unlocked after power failure according to claim 1, wherein: the bottom plate (1) is provided with a fixing sheet (14) for mounting the driving device (3).

9. The oven door lock structure that can be manually unlocked after power off according to claim 1, wherein: the bottom plate (1) is provided with a first microswitch (15) and a second microswitch (16) which are electrically connected with the driving device (3) and used for detecting the working state of the lock hook (2).