CN115162848A

CN115162848A - Door lock with manual unlocking structure

Info

Publication number: CN115162848A
Application number: CN202210863679.1A
Authority: CN
Inventors: 王立孟
Original assignee: Wenzhou Tianjian Electric Co ltd
Current assignee: Wenzhou Tianjian Electric Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-10-11
Anticipated expiration: 2042-07-20
Also published as: CN115162848B

Abstract

The invention provides a door lock with a manual unlocking structure, which belongs to the technical field of door locks and comprises the following components: a lock case; the peach heart sliding block is arranged in the lock shell in a sliding mode and is provided with a bearing handle extending out towards one side; the handle is provided with a bolt which is suitable for extending into the lock shell, and the top end of the bolt is provided with a groove for clamping the bearing handle; the moving path of the bolt inserted into the lock shell and the moving path of the peach-heart slide block in the lock shell are arranged at an angle; when the peach-heart sliding block is located at the working position, a bolt is inserted into the lock shell, a groove at the top end of the bolt can be matched with a bearing handle of the peach-heart sliding block, and the root of the bolt is bent, so that the peach-heart sliding block is driven to move towards the non-working position; when the peach heart slide block is positioned at the non-working position, the bearing handle of the peach heart slide block is far away from the moving path of the bolt; the door lock disclosed by the invention can be unlocked manually after sudden power failure, so that the door plate can be opened smoothly, and the door lock is simpler in relative structure and lower in requirement on size, so that the door lock has the advantage of lower cost.

Description

Door lock with manual unlocking structure

Technical Field

The invention relates to the technical field of door locks, in particular to a door lock with a manual unlocking structure.

Background

In a door lock for a household appliance such as a washing machine, a structure for preventing the door lock from being opened by sudden power failure, that is, a manual unlocking structure, needs to be provided.

The Chinese patent document CN107245845A discloses a washing machine door lock, a manual unlocking handle is arranged on a lock shell, a bearing handle is arranged on a peach heart slide block, and the bearing handle is provided with a socket groove; when the peach-heart sliding block is located at the working position, the manual unlocking handle can be inserted into the socket groove of the bearing handle, so that the peach-heart sliding block can be manually unlocked. However, when the peach-heart slide block is in the non-working position, the manual unlocking handle cannot be inserted into the socket groove of the receiving handle to drive the peach-heart slide block. The setting mode is as follows: a stop tongue which is parallel to the bearing handle is arranged in the lock shell, and when the peach-heart slide block moves to a working position, an insertion opening groove on the bearing handle extends to the upper part of the stop tongue, so that a manual unlocking handle is convenient to bear; when the peach heart slider moves to the non-operating position, the socket groove on the bearing handle moves to the lower part of the blocking tongue, the manual unlocking handle is driven at the moment, the manual unlocking handle can slide towards one side through the guiding of the blocking tongue, and therefore the manual unlocking handle cannot be inserted into the socket groove of the bearing handle, and the peach heart slider cannot be driven.

However, with the adoption of the structure, the requirement on the size of the socket groove of the bearing handle is high, and the requirement that the manual unlocking handle can be just borne when the peach heart slide block is positioned at the working position and cannot be inserted by the manual unlocking handle when the peach heart slide block is positioned at the non-working position needs to be met; in addition, the structure is complicated because the stop tongue is required to be arranged in the lock shell.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the manual unlocking structure of the door lock in the prior art has a high requirement on the size, so as to provide a door lock with a manual unlocking structure, which has a relatively simple structure and a low requirement on the size.

In order to solve the above technical problems, the present invention provides a door lock having a manual unlocking structure, including:

a lock case;

the peach heart sliding block is arranged in the lock shell in a sliding mode and provided with a bearing handle extending out towards one side;

the handle is provided with a bolt which is suitable for extending into the lock shell, and the top end of the bolt is provided with a groove for clamping the bearing handle;

the root of the bolt can be bent on the handle, and the moving path of the bolt inserted into the lock shell and the moving path of the peach-heart sliding block in the lock shell form an angle;

when the peach-heart sliding block is located at the working position, the bolt is inserted into the lock shell, the groove at the top end of the bolt can be matched with the bearing handle of the peach-heart sliding block, the handle is continuously driven, the root of the bolt is bent, and therefore the peach-heart sliding block is driven to move towards the non-working position;

when the peach-heart sliding block is located at a non-working position, the bearing handle of the peach-heart sliding block is far away from the moving path of the bolt, the bolt is inserted into the lock shell, and the groove at the top end of the bolt cannot be matched with the bearing handle of the peach-heart sliding block.

Optionally, the cross-sectional dimension of the root of the pin is less than the average cross-sectional dimension.

Optionally, the contour of one surface of the receiving handle for matching with the groove of the bolt is an arc surface.

Optionally, the included angle between the moving path of the bolt inserted into the lock shell and the moving path of the peach-heart slider in the lock shell is 105-120 degrees.

Optionally, an electrical box is arranged in the lock case, the peach-heart slider is slidably mounted in the electrical box, and a bearing handle of the peach-heart slider extends out of the electrical box towards one side.

Optionally, the lock case has a mounting groove for mounting the electrical box, and the electrical box is detachably fixed in the mounting groove by a clamping structure.

Optionally, the handle is resiliently connected to the housing.

Optionally, the heart sliding block is driven by an electromagnetic mechanism, an elastic piece is arranged in the electromagnetic mechanism, and the elastic piece has an elastic force which drives the heart sliding block to move towards the working direction when the power is cut off.

Optionally, a clamp spring is arranged in the electrical appliance box, and when the electromagnetic mechanism drives the peach-heart slider to face the non-working position, the clamp spring is suitable for being clamped into a limiting groove of the peach-heart slider so as to prevent the peach-heart slider from returning under the action of the elastic piece.

Optionally, the peach-heart slider is connected with a limiting block for preventing unlocking, when the peach-heart slider moves to the working position, the limiting block is driven to the limiting position, and when the peach-heart slider moves to the non-working position, the limiting block is driven to the position where limiting is released.

The technical scheme of the invention has the following advantages:

the door lock with the manual unlocking structure provided by the invention can be unlocked manually after sudden power failure, so that the door plate can be opened smoothly, and the door lock is simpler in relative structure and lower in requirement on size, so that the door lock has the advantage of lower cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of an internal structure of one embodiment of a door lock having a manual unlocking structure provided in an embodiment of the present invention.

Fig. 2 is a front perspective view of the lock housing of fig. 1.

Fig. 3 is a front perspective view of the electrical box within the lock housing.

Fig. 4 is an internal structure diagram of the electrical box of fig. 3.

Fig. 5 is a perspective view of the internal structure of the electric box.

Fig. 6 is a back perspective view of the appliance case.

Figure 7 is a rear view of the appliance casing mounted within the lock housing.

Fig. 8 is a schematic view of the bearing handle of the heart slider in the working position of fig. 7 engaged with the latch.

Fig. 9 is a schematic view of the receiving handle of fig. 8 driving the peach heart slide block through the bolt.

FIG. 10 is a schematic view of the heart block in the rest position.

FIG. 11 is a schematic view of the engagement of the bearing handle of the heart block with the latch in the rest position.

Description of the reference numerals:

1. a lock case; 2. a peach heart slider; 3. a handle; 4. a bolt; 5. mounting grooves; 6. an electrical box; 7. a jack; 8. guiding a positioning block; 9. an electromagnetic mechanism; 10. a clamp spring; 11. a limiting groove; 12. a limiting block; 13. a drive chute; 14. a cylinder; 15. a bearing handle; 16. and (4) root.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The door lock with the manual unlocking structure provided by the embodiment can be used for household appliances such as washing machines and the like.

As shown in fig. 1, a specific embodiment of the door lock with a manual unlocking structure provided for this embodiment includes: the door lock comprises a lock shell 1, wherein a peach-heart-shaped sliding block 2 is arranged in the lock shell 1 in a sliding mode, and the peach-heart-shaped sliding block 2 slides in the lock shell 1 so that a cam in the lock shell 1 can forcibly lock and unlock a door hook.

As shown in fig. 1, the door lock with a manual unlocking structure according to the present embodiment further includes: a handle 3, said handle 3 having a bolt 4 adapted to extend into said housing 1. The bolt 4 is used for directly driving the peach heart slide block 2, thereby releasing the forced locking of the peach heart slide block 2 to the inner cam of the lock shell 1.

As shown in fig. 2, the handle 3 is elastically connected to the lock case 1. The bolt 4 can be inserted into the lock case 1 by elastically driving the handle 3, and when the driving of the handle 3 is released, the handle 3 is restored to its original state, and the bolt 4 is drawn back to the socket of the lock case 1.

As shown in fig. 2 and 3, the lock case 1 has a mounting groove 5, and the mounting groove 5 is used for mounting an electrical box 6. Specifically, the electrical box 6 can be detachably and fixedly mounted in the mounting groove 5 in a clamping manner. The joint structure can be for setting up jack 7 on the lock shell and set up on electrical apparatus box 6 with jack 7 complex guide orientation piece 8 is through inserting guide orientation piece 8 in jack 7 to the completion is in the mounting groove 5 of lock shell with 6 joints of electrical apparatus box.

As shown in fig. 4, the heart slider 2 is slidably mounted in the electrical box 6. Specifically, the peach-heart sliding block 2 is driven by an electromagnetic mechanism 9, an elastic piece is arranged in the electromagnetic mechanism 9, and the elastic piece has an elastic force which drives the peach-heart sliding block 2 to move towards the working direction when the power is off.

As shown in fig. 4, a clamp spring 10 is arranged in the electrical appliance box 6, when the electromagnetic mechanism drives the heart sliding block 2 to face the non-working position, the clamp spring 10 is suitable for being clamped into a limiting groove 11 of the heart sliding block 2, so that the heart sliding block 2 is prevented from returning under the action of the elastic piece. Then, when the electromagnetic mechanism moves towards the working position of the peach-heart sliding block 2 again, the clamp spring 10 can be separated from the limiting groove 11 of the peach-heart sliding block 2; then, under the drive of the elastic part, the peach-heart slide block 2 moves towards the non-working position, and the clamp spring 10 slides to the bottom of the peach-heart slide block 2.

As shown in fig. 5, the peach-heart slider 2 is connected with a stopper 12 for preventing unlocking, when the peach-heart slider 2 moves to an operating position, the stopper 12 is driven to a stopper position, and when the peach-heart slider 2 moves to a non-operating position, the stopper 12 is driven to a stopper release position. Specifically, the lateral surface of the heart sliding block 2 is provided with a driving sliding groove 13, and the limiting block 12 is provided with a cylinder 14 extending into the driving sliding groove 13. Through the matching of the driving sliding chute 13 and the cylinder 14, when the peach-heart slide block 2 moves towards the working position, the limiting block 12 can be driven to move upwards; when the peach-heart slider 2 moves towards the non-working position, the limiting block 12 can be driven to move downwards. When the stop block 12 moves downwards, the cam in the door lock can be forcibly locked.

As shown in fig. 6, the limiting block 12 can partially extend out of the electrical box 6. That is to say, when the heart slider 2 moves to the working position, the limit block 12 can be driven to extend out of the electrical box 6, so that the limit block 12 is used for forcibly locking the cam of the door lock. When the heart slide block 2 moves to the non-working position, the limit block 12 can be driven to retract into the electric appliance box 6, so that the forced locking of the cam of the door lock is released.

As shown in fig. 6, the heart slider 2 has a receiving handle 15 extending toward one side, the receiving handle 15 extends toward one side of the electrical box 6, and the electrical box 6 has a strip-shaped groove for avoiding a moving path of the receiving handle 15. Therefore, when the heart slide block 2 reciprocates, the bearing handle 15 is driven to reciprocate along the strip-shaped groove of the electrical box 6. By driving the receiving handle 15, the movement of the heart slider 2 can be driven.

As shown in fig. 6, the contour of the surface of the receiving handle 15 for matching with the groove of the bolt 4 is an arc surface. Through the arrangement of the arc-shaped surface, the bolt 4 can slide on the arc-shaped surface of the bearing handle 15 more smoothly when the bearing handle 15 is pushed.

As shown in fig. 7-10, the top end of the latch 4 has a recess for snapping into the receiving shank 15. The cross-sectional dimension of the root 16 of the spigot 4 is less than the average cross-sectional dimension. With this arrangement, the elastic bending of the plug pin 4 from the root 16 is further facilitated.

As shown in fig. 7 and 8, when the heart sliding block 2 is in the working position, the bolt 4 is inserted into the lock case 1, and the groove at the top end of the bolt 4 can be matched with the receiving handle 15 of the heart sliding block 2.

As shown in fig. 9, the base 16 of the latch 4 can be bent at the handle 3, and the base 16 of the latch 4 can be bent by continuing to drive the handle 3, thereby driving the heart slider 2 to move toward the rest position.

As shown in fig. 10 and 11, the moving path of the bolt 4 inserted into the lock case 1 is arranged at an angle with the moving path of the peach-heart slider 2 in the lock case 1. The included angle between the moving path of the bolt 4 inserted into the lock shell 1 and the moving path of the peach-heart slide block 2 in the lock shell 1 is 105-120 degrees. This angle is arranged to best facilitate the engagement between the spigot 4 and the receiving shank 15. In addition, as an alternative embodiment, the insertion path of the bolt 4 may be set to have a greater angle less than 180 ° with the sliding path of the heart slider 2, and the purpose of driving the receiving handle 15 may also be achieved.

As shown in fig. 10 and 11, when the heart sliding block 2 is in the non-working position, the receiving handle 15 of the heart sliding block 2 is far away from the moving path of the bolt 4, the bolt 4 is inserted into the lock case 1, and the top end groove of the bolt 4 cannot be matched with the receiving handle 15 of the heart sliding block 2.

The door lock with the manual unlocking structure provided by the embodiment can be unlocked manually after sudden power failure, so that the door plate can be smoothly opened, the structure is simpler, the requirement on the size is lower, and the door lock has the advantage of lower cost.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. A door lock having a manual unlocking structure, comprising:

a lock case (1);

the peach-heart sliding block (2) is arranged in the lock shell (1) in a sliding mode, and the peach-heart sliding block (2) is provided with a bearing handle (15) extending towards one side;

the handle (3) is provided with a bolt (4) which is suitable for extending into the lock shell (1), and the top end of the bolt (4) is provided with a groove for being clamped into the bearing handle (15);

the root part (16) of the bolt (4) can be bent on the handle (3), and the moving path of the bolt (4) inserted into the lock shell (1) and the moving path of the peach-heart sliding block (2) in the lock shell (1) are arranged at an angle;

when the peach-heart sliding block (2) is located at a working position, the bolt (4) is inserted into the lock shell (1), a groove at the top end of the bolt (4) can be matched with a bearing handle (15) of the peach-heart sliding block (2), the handle (3) is continuously driven, the root (16) of the bolt (4) is bent, and therefore the peach-heart sliding block (2) is driven to move towards a non-working position;

when the peach-heart sliding block (2) is located at a non-working position, the bearing handle (15) of the peach-heart sliding block (2) is far away from the moving path of the bolt (4), the bolt (4) is inserted into the lock shell (1), and the groove at the top end of the bolt (4) cannot be matched with the bearing handle (15) of the peach-heart sliding block (2).

2. The door lock with manual unlocking structure according to claim 1, wherein the root portion (16) of the bolt (4) has a sectional size smaller than an average sectional size.

3. The door lock with manual unlocking structure according to claim 1, wherein the contour of the face of the receiving handle (15) for mating with the groove of the plug pin (4) is an arc-shaped face.

4. Door lock with manual unlocking structure according to claim 1, characterized in that the angle between the movement path of the bolt (4) inserted into the lock case (1) and the movement path of the heart slider (2) inside the lock case (1) is between 105 ° and 120 °.

5. The door lock with the manual unlocking structure according to claim 1, wherein an electrical box (6) is arranged in the lock shell, the heart slider (2) is slidably mounted in the electrical box (6), and a bearing handle (15) of the heart slider (2) extends out of the electrical box (6) towards one side.

6. The door lock with the manual unlocking structure of claim 5, wherein the lock case has a mounting groove (5) for mounting the electric box (6), and the electric box (6) is detachably fixed in the mounting groove (5) by a snap structure.

7. Door lock with manual unlocking structure according to claim 6, characterized in that said handle (3) is elastically connected to said lock case (1).

8. The door lock with manual unlocking structure according to claim 5, wherein the peach-heart slider (2) is driven by an electromagnetic mechanism (9), the electromagnetic mechanism (9) has an elastic member therein, and the elastic member has an elastic force for driving the peach-heart slider (2) to move toward the working direction when the power is off.

9. The door lock with the manual unlocking structure according to claim 8, wherein a clamp spring (10) is arranged in the electric appliance box (6), and when the electromagnetic mechanism drives the peach-heart sliding block (2) to face the non-working position, the clamp spring (10) is suitable for being clamped in a limiting groove (11) of the peach-heart sliding block (2) so as to block the peach-heart sliding block (2) from returning under the action of the elastic piece.

10. The door lock with the manual unlocking structure according to any one of claims 1 to 9, wherein a stopper (12) for preventing unlocking is attached to the heart slider (2), the stopper (12) is driven to a stopper position when the heart slider (2) is moved to the working position, and the stopper (12) is driven to a position where the stopper is released when the heart slider (2) is moved to the non-working position.