CN115162848B

CN115162848B - Door lock with manual unlocking structure

Info

Publication number: CN115162848B
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: 2024-03-29
Anticipated expiration: 2042-07-20
Also published as: CN115162848A

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 way and is provided with a bearing handle extending 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 into the receiving handle; 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 are arranged at an angle; when the peach heart sliding block is positioned at the working position, a plug pin is inserted into the lock shell, a groove at the top end of the plug pin can be matched with a receiving handle of the peach heart sliding block, and the root of the plug pin 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 by hand after sudden power failure, so that the door plate can be opened smoothly, and the door lock has the advantages of simpler relative structure, lower requirement on the size and 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 door locks for household appliances such as washing machines, it is necessary to provide a structure for preventing the door lock from being opened by sudden power failure, i.e., a manual unlocking structure.

A door lock of a washing machine disclosed in Chinese patent document CN107245845A is characterized in that a manual unlocking handle is arranged on a lock shell, a bearing handle is arranged on a peach heart sliding block, and the bearing handle is provided with a socket groove; when the heart slider is located the working position, can insert the socket inslot of accepting the handle through this manual unblock handle to carry out manual unblock to the heart slider. However, when the heart-shaped slider is in the non-working position, the manual unlocking handle is required to be inserted into the socket groove of the receiving handle to drive the heart-shaped slider. The setting mode is as follows: a blocking tongue parallel to the bearing handle is arranged in the lock shell, and when the heart-shaped sliding block moves to the working position, a socket groove on the bearing handle extends to the upper part of the blocking tongue, so that the hand unlocking handle is conveniently borne; when the peach heart sliding block moves to the non-working 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, and the manual unlocking handle can slide towards one side through the guiding of the blocking tongue, so that the peach heart sliding block cannot be inserted into the socket groove of the bearing handle, and the peach heart sliding block cannot be driven.

However, with the structure, the requirement on the size of the socket groove of the receiving handle is high, the requirement that the manual unlocking handle can be just received when the heart-shaped sliding block is positioned at the working position is met, and the manual unlocking handle cannot be inserted when the heart-shaped sliding block is positioned at the non-working position; in addition, the blocking tongue is also required to be arranged in the lock shell, so that the structure is complex.

Disclosure of Invention

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

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

a lock case;

the peach heart sliding block is arranged in the lock shell in a sliding way and is provided with a bearing handle extending 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 being clamped into the receiving 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 heart-shaped sliding block in the lock shell are arranged at an angle;

when the peach heart sliding block is positioned at the working position, the 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 handle is continuously driven to bend the root part of the bolt, so that the peach heart sliding block is driven to move towards the non-working position;

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

Optionally, the cross-sectional dimension of the root of the plug is smaller than the average cross-sectional dimension.

Optionally, the profile of the surface of the receiving handle for being matched with the groove of the bolt is an arc-shaped surface.

Optionally, an included angle between a moving path of the bolt inserted into the lock shell and a moving path of the heart-shaped sliding block in the lock shell is 105-120 degrees.

Optionally, be provided with the electrical apparatus box in the lock shell, heart slider slidable mounting is in the electrical apparatus box, the handle that holds of heart slider stretches out towards one side the electrical apparatus box.

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

Optionally, the handle is elastically connected to the lock case.

Optionally, the peach heart slider is driven through electromagnetic mechanism, have the elastic component in the electromagnetic mechanism, the elastic component has the power of power failure time drive the heart slider moves towards the elastic force of working direction.

Optionally, a jump ring is provided in the electrical apparatus box, electromagnetic mechanism drives the heart slider returns after moving towards the working position direction, thereby the jump ring is suitable for the card to go into in the spacing groove of heart slider thereby stop the heart slider returns under the effect of elastic component.

Optionally, the heart slider is connected with the stopper that is used for preventing unblanking, when the heart slider removes to working position, the stopper is driven to spacing position, when the heart slider removes to non-working position, the stopper is driven to the position of releasing spacing.

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 by hand after sudden power failure, so that the door plate can be opened smoothly, and the door lock has the advantages of simpler relative structure, lower requirement on the size and 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 that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view showing an internal structure of one embodiment of a door lock with 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 in the lock case.

Fig. 4 is a schematic view of an internal structure of the electrical box of fig. 3.

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

Fig. 6 is a rear perspective view of the electrical box.

Fig. 7 is a rear view of the electrical box installed in the lock case.

Fig. 8 is a schematic view of the connection handle and the latch of the heart-shaped slider in fig. 7 in the working position.

Fig. 9 is a schematic view of the receiving handle of fig. 8 driven by a latch.

Fig. 10 is a schematic view of the heart-piece slider in the rest position.

FIG. 11 is a schematic view of the engagement of the receiving shank of the heart-piece slider with the latch in the rest position.

Reference numerals illustrate:

1. a lock case; 2. a peach heart slide block; 3. a handle; 4. a plug pin; 5. a mounting groove; 6. an electrical box; 7. a jack; 8. a guide positioning block; 9. an electromagnetic mechanism; 10. clamping springs; 11. a limit groove; 12. a limiting block; 13. driving the chute; 14. a cylinder; 15. a receiving handle; 16. root.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

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

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

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

As shown in fig. 1, in the door lock with the manual unlocking structure provided in this embodiment, the method further includes: a handle 3, said handle 3 having a spigot 4 adapted to extend into said lock housing 1. The bolt 4 is used for directly driving the heart-shaped slide block 2, so that the forced locking of the heart-shaped slide block 2 to the cam in the lock shell 1 is released.

As shown in fig. 2, the handle 3 is elastically coupled to the lock case 1. By elastically driving the handle 3, the plug 4 can be inserted into the lock case 1, and when the drive to the handle 3 is released, the handle 3 is restored to its original shape, and the plug 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 may be detachably and fixedly installed in the installation groove 5 in a clamping manner. The clamping structure can be a jack 7 arranged on the lock shell and a guide positioning block 8 arranged on the electric box 6 and matched with the jack 7, and the electric box 6 is clamped in the mounting groove 5 of the lock shell by inserting the guide positioning block 8 into the jack 7.

As shown in fig. 4, the heart-shaped slider 2 is slidably mounted in the electrical box 6. Specifically, the heart-shaped slider 2 is driven by an electromagnetic mechanism 9, and an elastic member is arranged in the electromagnetic mechanism 9, and has an elastic force for driving the heart-shaped slider 2 to move towards the non-working position as shown in fig. 4 when the power is off.

As shown in fig. 4, a clamp spring 10 is disposed in the electrical box 6, and when the electromagnetic mechanism drives the heart-shaped slider 2 to move towards the direction of the working position and then return, the clamp spring 10 is suitable for being clamped into the limit groove 11 of the heart-shaped slider 2, so as to prevent the heart-shaped slider 2 from returning under the action of the elastic element. Then, when the electromagnetic mechanism drives the peach heart slider 2 to move towards a direction away from the non-working position again, the clamp spring 10 can be separated from the limit groove 11 of the peach heart slider 2; then, under the drive of the elastic element, the heart-shaped slide block 2 moves towards the non-working position, and the clamp spring 10 slides towards the bottom of the heart-shaped slide block 2.

As shown in fig. 5, the heart-shaped slider 2 is connected with a limiting block 12 for preventing unlocking, when the heart-shaped slider 2 moves to the working position, the limiting block 12 is driven to the limiting position, and when the heart-shaped slider 2 moves to the non-working position, the limiting block 12 is driven to the position for releasing the limiting. Specifically, the side surface of the heart-shaped 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 cooperation of the driving chute 13 and the cylinder 14, when the heart-shaped sliding block 2 moves towards the working position, the limiting block 12 can be driven to move upwards; when the heart slider 2 moves towards the non-working position, the limiting block 12 can be driven to move downwards. When the stopper 12 moves downward, the cam in the door lock can be forcibly locked.

As shown in fig. 6, the stopper 12 can partially protrude from the electrical box 6. That is, when the heart-shaped slider 2 moves to the working position, the limiting block 12 can be driven to extend out of the electrical box 6, so that the cam of the door lock is forcibly locked through the limiting block 12. When the heart slider 2 moves to the non-working position, the limiting block 12 can be driven to retract into the electric box 6, so that the forced locking of the cam of the door lock is released.

As shown in fig. 6, the heart-shaped 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 bar-shaped groove for avoiding the moving path of the receiving handle 15. Therefore, when the heart slider 2 reciprocates, the receiving handle 15 is driven to reciprocate along the bar-shaped groove of the electrical box 6. By driving the receiving handle 15, the heart slider 2 can be driven to move.

As shown in fig. 6, the profile of the surface of the receiving handle 15 for mating with the recess of the plug 4 is an arc-shaped 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 pushing the bearing handle 15.

As shown in fig. 7 to 10, the top end of the plug 4 has a recess for being snapped into the receiving shank 15. The cross-sectional dimension of the root 16 of the plug 4 is smaller than the average cross-sectional dimension. By this arrangement, the resilient bending of the plug 4 from the root 16 is facilitated.

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

As shown in fig. 9, the root 16 of the latch 4 can be bent on the handle 3, and the handle 3 is continuously driven, so that the root 16 of the latch 4 can be bent, and the heart-shaped slider 2 is driven to move toward the rest position.

As shown in fig. 10 and 11, the moving path of the plug 4 inserted into the lock case 1 is set at an angle to the moving path of the core 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 heart-shaped sliding block 2 in the lock shell 1 is 105-120 degrees. The angle is set to be most favorable for the cooperation between the bolt 4 and the receiving handle 15. In addition, as an alternative embodiment, the insertion path of the latch 4 may be set to have a larger angle of less than 180 ° with the sliding path of the heart slider 2, and the driving purpose of the receiving handle 15 may be achieved as well.

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

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

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.

Claims

1. A door lock with manual unlocking structure, comprising:

a lock case (1);

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

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

the root (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) is arranged at an angle with the moving path of the heart-shaped sliding block (2) in the lock shell (1);

when the peach heart sliding block (2) is positioned at the working position, the bolt (4) is inserted into the lock shell (1), a top end groove 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 the non-working position;

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

2. Door lock with manual unlocking structure according to claim 1, characterized in that the cross-sectional dimension of the root (16) of the bolt (4) is smaller than the average cross-sectional dimension.

3. Door lock with manual unlocking structure according to claim 1, characterized in that the profile of the face of the receiving shank (15) intended to cooperate with the recess 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 plug pin (4) inserted into the lock housing (1) and the movement path of the heart slider (2) in the lock housing (1) is between 105 ° -120 °.

5. The door lock with the manual unlocking structure according to claim 1, wherein an electric box (6) is arranged in the lock shell, the heart-shaped sliding block (2) is slidably arranged in the electric box (6), and a receiving handle (15) of the heart-shaped sliding block (2) extends out of the electric box (6) towards one side.

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

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

8. The door lock with the manual unlocking structure according to claim 5, wherein the heart-shaped 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 for driving the heart-shaped sliding block (2) to move towards a working direction when 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 electrical box (6), and the electromagnetic mechanism drives the heart-shaped slide block (2) to move towards the working position direction and then return, and the clamp spring (10) is suitable for being clamped into a limit groove (11) of the heart-shaped slide block (2) so as to prevent the heart-shaped slide 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, characterized in that a stopper (12) for preventing unlocking is connected to the heart slider (2), the stopper (12) is driven to a limit position when the heart slider (2) is moved to an operating position, and the stopper (12) is driven to a position for releasing the limit when the heart slider (2) is moved to a non-operating position.