CN215561326U - Bolt type door lock of drum washing machine - Google Patents

Abstract

The utility model discloses a bolt type door lock of a drum washing machine, and relates to the technical field of washing machines. The utility model comprises a screw motor, a first guide rail, a second guide rail, a lock bolt and a lock bolt; the screw motor is fixedly arranged on the inner wall of the shell of the washing machine; the first guide rail and the second guide rail are fixedly connected to the inner wall of the shell of the washing machine, are positioned on the same straight line and are positioned at two sides of the lock tongue; the lock bolt is wedge-shaped and is movably connected to the outer end of the screw motor; the bottom surface of the lock bolt is in sliding fit with the first guide rail and the second guide rail; one end of the lock tongue is fixedly connected to the inner wall of the door body of the washing machine, and the lock tongue can rotate along the door shaft along with the door body; the spring bolt is provided with a first through hole, and the first through hole is movably matched with the lock bolt. According to the utility model, the wedge-shaped lock plunger is pulled by the screw motor, and the lock plunger passes through the lock tongue along the guide rail, so that the aim of locking the door body of the washing machine is achieved, and the convenience and the intelligence of opening and closing the door body of the drum washing machine are improved.

Description

Bolt type door lock of drum washing machine

Technical Field

The utility model belongs to the technical field of washing machines, and particularly relates to a bolt type door lock of a drum washing machine.

Background

The washing machine is one of the most frequently used household appliances in daily life, and helps people get rid of the trouble of washing clothes. The drum washing machine has better space advantage and better washing effect by means of the design of a side door, and is favored by more and more users. The existing door lock of the drum washing machine is basically of a buckling type structure, namely, when the door lock is locked, a door hook inside the lock is required to buckle a bolt. This structure is closing the door, because will accomplish the extrusion to the door closure, needs great external force just can push the lockhole with the spring bolt, and the coil of locking is circular telegram, and the inside door hook of lock hooks the spring bolt through the structure motion, accomplishes and locks. Therefore, the existing door lock cannot automatically close and lock; and because the door body self weight effect, long-time work, the door body takes place to warp, can take place the spring bolt and hit the lock hook phenomenon, and the door lock damage easily causes at this moment closing the door hard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bolt type door lock of a drum washing machine, which achieves the aim of locking a door body of the washing machine by pulling a wedge-shaped lock bolt through a screw motor and enabling the lock bolt to penetrate through a lock bolt along a guide rail, and solves the problems that the existing drum washing machine cannot automatically lock, and the lock bolt is easy to collide with a lock hook to damage the door lock.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model is a bolt type door lock of drum washing machine, comprising: the screw motor is fixedly arranged on the inner wall of the shell of the washing machine; the first guide rail is fixedly connected to the inner wall of the shell of the washing machine; the second guide rail is fixedly connected to the inner wall of the shell of the washing machine and is positioned on the same straight line with the first guide rail. One end of the lock bolt is movably connected to the outer end of the screw motor; the bottom surface of the lock bolt is in sliding fit with the first guide rail and the second guide rail. One end of the lock tongue is fixedly connected to the inner surface of the washing machine door body; the lock tongue is provided with a first through hole, and the first through hole is movably matched with the lock bolt; the spring bolt is located between first guide rail and the second guide rail when the door body is closed.

Furthermore, the lock bolt adopts a wedge-shaped lock bolt, so that the door body can be gradually closed through the lock bolt in the process that the lock bolt penetrates through the lock bolt.

Furthermore, the side surface of the lock bolt is provided with a sliding groove, the first guide rail and the second guide rail are provided with sliding plates, and the sliding groove is in sliding fit with the sliding plates.

Furthermore, the first guide rail and the second guide rail are connected into an integral structure through the U-shaped connecting blocks, the operation steps of the door lock in the production and processing process can be reduced through the integral structure, and the operation beat is improved.

Further, the screw motor controls the starting and stopping of the motor through a switch.

Further, the inductive switch includes: the reed switch comprises a reed switch, a first magnet and a second magnet; the reed switch is fixedly arranged on the upper surface of the lock bolt; the first magnet is fixedly arranged at the other end of the lock tongue; one end of the screw motor is fixedly connected with a connecting plate, and the second magnet is fixedly arranged at one end of the connecting plate.

Further, the lock bolt is positioned below the lock bolt, and the motor is positioned below the lock bolt.

The utility model has the following beneficial effects:

1. according to the utility model, the wedge-shaped lock bolt is pulled by the screw motor and penetrates through the lock tongue along the guide rail, so that the aim of automatically locking the washing machine door body is achieved, and the action constraint that the door gap needs to be extruded forcibly when the door is opened and closed manually is avoided, thus the automatic door closing is realized, and the convenience and the intelligence of opening and closing the door body of the drum washing machine are improved.

2. According to the utility model, the lock bolt is arranged below the lock bolt, and in the process of locking the lock bolt by moving the lock bolt upwards, the lock bolt provides an upward supporting force for the door body, so that a part of downward force acting on the lock bolt due to the weight of the door body can be offset, the door body is prevented from deforming, the door lock is prevented from being damaged, and the durability of the washing machine is improved.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is a schematic structural view of a tumbler door lock of a drum washing machine according to the present invention;

FIG. 2 is a front view of the drum washing machine;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a cross-sectional view of the second rail and latch assembly engaged;

fig. 6 is a schematic structural diagram of the second embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1-screw motor, 2-lock bolt, 3-lock bolt, 4-first guide rail, 5-second guide rail, 6-screw, 7-connecting plate, 8-shell, 9-door body, 10- 'U' -shaped connecting block, 201-reed pipe, 202-sliding groove, 301-first magnet, 302-first through hole, 501-sliding plate, 701-second magnet and 801-lock hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 is to be understood that the terms "opening," "upper," "lower," "side," "top," "middle," "surface," "inner," "bottom," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Example one

Referring to fig. 1-5, the present invention is a bolt type door lock for a drum washing machine, including a screw motor 1, a first guide rail 4, a second guide rail 5, a lock bolt 2 and a lock bolt 3. The screw motor 1 is fixedly arranged on the inner wall of the washing machine shell 8, and one end of the lock bolt 2 is movably connected with the outer end of the screw 6 of the screw motor 1; the screw motor 1 can pull the lock bolt 2 to move along the guide rail through the screw 6. The first guide rail 4 and the second guide rail 5 are both fixedly connected to the inner wall of the washing machine shell 8; the first guide rail 4 and the second guide rail 5 are positioned on the same straight line; the lock bolt 2 adopts a wedge-shaped lock bolt. The side surface of the lock bolt 2 is provided with a sliding groove 202, the first guide rail 4 and the second guide rail 5 are provided with a sliding plate 501, and the sliding groove 202 is in sliding fit with the sliding plate 501.

Referring to fig. 3 and 4, one end of the latch 3 is fixedly connected to the inner wall of the door 9 of the washing machine, and the latch 3 can rotate along the door axis along with the door 9; the bolt 3 is provided with a first through hole 302, and the first through hole 302 is movably matched with the lock bolt 2; the bolt 3 is located between the first guide rail 4 and the second guide rail 5 after passing through the lock hole 801 when the door body 9 is closed, so that the lock bolt 2 passes through the first through hole 302 of the bolt 3 in the process of moving from the first guide rail 4 to the second guide rail 5, and the bolt 2 is wedge-shaped, so that the door body can be gradually closed in the process of passing through the bolt 3 by the lock bolt 2.

Referring to fig. 4, a reed pipe 201 is fixedly installed on the upper surface of the lock bolt 2, a first magnet 301 is fixedly installed on the other end of the lock bolt 3, a connecting plate 7 is fixedly connected to one end of the screw motor 1, and a second magnet 701 is fixedly connected to one end of the connecting plate 7. In the locking process, the screw motor 1 pushes the lock bolt 2 to move upwards along the guide rail, when the reed switch 201 on the lock bolt 2 senses the first magnet 301, a first position signal is generated, the screw motor 1 stops moving, and locking is completed. In the unlocking process, the screw motor 1 pulls the lock bolt 2 to move downwards along the guide rail, when the reed switch 201 on the lock bolt 2 senses the second magnet 701, a second position signal is generated, the screw motor 1 stops moving, and unlocking is completed.

One specific application operation step of this embodiment is:

s1: closing the door body 9, wherein the bolt 3 penetrates through the lock hole 801 and is positioned between the first guide rail 4 and the second guide rail 5;

s2: the screw motor 1 is connected with an external power supply and drives the screw 6 to rotate and extend, and the screw 6 pushes the lock bolt 2 to slide to the second guide rail 5 along the first guide rail 4 and penetrate through the first through hole 302 of the lock bolt 3;

s3: the lock bolt 2 continues to move towards the second guide rail 5, when the reed switch 201 on the lock bolt 2 senses the first magnet 301, a first position signal is generated, the screw motor 1 stops moving, and at the moment, the door body 9 is locked;

s4: the screw motor 1 is connected with an external power supply and drives the screw 6 to rotate and contract, the screw 6 pulls the lock bolt 2 to slide to the first guide rail 4 along the second guide rail 5 and to withdraw from the lock bolt 3;

s5: the lock bolt 2 continues to move towards the first guide rail 4, when the reed switch 201 on the lock bolt 2 senses the second magnet 701, a second position signal is generated, the screw motor 1 stops moving, and the door body 9 is unlocked at the moment.

Example two

Referring to fig. 6, the first guide rail 4 and the second guide rail 5 are connected into a whole by the U-shaped connecting block 10, which can reduce the operation steps of the guide rails during the production and assembly process and improve the operation tact of the stations. And after the first guide rail 4 and the second guide rail 5 are connected into a whole, the slideway planes of the first guide rail 4 and the second guide rail 5 can be kept on the same plane, and the lock bolt 2 is prevented from impacting the track. The U-shaped connecting block 10 is positioned at two sides of the first guide rail 4 and the second guide rail 5, and a gap formed between the U-shaped connecting block 10 and the first guide rail 4 and between the U-shaped connecting block and the second guide rail 5 is not smaller than the size of the lock hole 801, so that the opening and closing requirements of the lock tongue 3 are met.

EXAMPLE III

Referring to fig. 3, the lock bolt 2 is located below the lock tongue 3, and the screw motor 1 is located below the lock bolt 2. The in-process of 2 upward movements locking spring bolts 3 of set bar, provide ascending holding power for the door body 9 through spring bolts 3, can offset partly because the pushing down force of door body 9 self weight effect on spring bolts 3, avoid the door body 9 to take place deformation, cause the lock to damage, promote washing machine durability.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A drum washing machine bolt type door lock is characterized by comprising:

the device comprises a shell (8) provided with a lock hole (801);

the screw motor (1), the said screw motor (1) is fixedly mounted on the inner wall of the body (8);

the first guide rail (4), the said first guide rail (4) is connected to the inboard wall of the body (8) fixedly;

the second guide rail (5) is fixedly connected to the inner wall of the shell (8) and is positioned on the same straight line with the first guide rail (4);

one end of the lock bolt (2) is movably connected to the outer end of a screw (6) of the screw motor (1); the bottom surface of the lock bolt (2) is in sliding fit with the first guide rail (4) and the second guide rail (5);

one end of the lock tongue (3) is fixedly connected to the inner wall of a door body (9) of the washing machine, and the lock tongue (3) can rotate along a door shaft along with the door body (9); the lock bolt (3) is provided with a first through hole (302), and the first through hole (302) is movably matched with the lock bolt (2); the bolt (3) passes through the lock hole (801) and is located between the first guide rail (4) and the second guide rail (5) when the door body (9) is closed.

2. A drum washing machine tumbler door lock according to claim 1, characterized in that the lock bolt (2) is a wedge-shaped lock bolt.

3. A drum washing machine bolt type door lock according to claim 1, characterized in that the side of the lock bolt (2) is provided with a sliding groove (202), the first guide rail (4) and the second guide rail (5) are provided with sliding plates (501), and the sliding groove (202) and the sliding plates (501) are in sliding fit.

4. A drum washing machine tumbler door lock according to claim 1, characterized in that the first guide rail (4) and the second guide rail (5) are connected as a single structure by means of a "U" -shaped connecting block (10).

5. The cylinder washing machine bolt type door lock according to claim 1, characterized in that the screw motor (1) controls the start and stop of the motor through an inductive switch.

6. A drum washing machine tumbler door lock according to claim 5, characterized in that the inductive switch comprises: the reed switch comprises a reed switch (201), a first magnet (301) and a second magnet (701); the reed switch (201) is fixedly arranged on the upper surface of the lock bolt (2); the first magnet (301) is fixedly arranged at the other end of the bolt (3); one end of the screw motor (1) is fixedly connected with a connecting plate (7), and the second magnet (701) is fixedly installed at one end of the connecting plate (7).

7. A drum washing machine tumbler door lock according to claim 1, characterized in that the lock bolt (2) is located below the lock tongue (3) and the screw motor (1) is located below the lock bolt (2).

Images