CN210239385U - Locking and unlocking assembly and automatic spring-open electromagnetic door lock - Google Patents

Abstract

A locking and unlocking assembly comprises a base and a sliding unit, wherein a second sliding groove is formed in the side surface, facing an upper cover, of the base; the sliding unit comprises a main sliding block, a sector block and a second torsion spring, the main sliding block is positioned in the second sliding chute, and the second torsion spring is positioned between the main sliding block and the base; one side of the main sliding block facing the upper cover is provided with a fan-shaped groove, the side of the fan-shaped block facing the upper cover is provided with a heart-shaped groove, the middle part of the heart-shaped groove is provided with a heart-shaped block, and one end of the sliding limiting pin unit far away from the upper cover is movably positioned in the heart-shaped groove; the heart-shaped block is provided with a tip part, a concave part far away from the tip part and shoulders positioned at two sides of the concave part; the heart-shaped groove is provided with a first limiting part, a second limiting part, a third limiting part and a fourth limiting part. The space that main slider was taken up in the setting that so can not reduce structural strength, the second torsional spring of main slider is less, and the second torsional spring is less to the influence of elasticity after long-term the use, has prolonged life. The utility model also provides an automatic spring-open electromagnetic door lock.

Description

Locking and unlocking assembly and automatic spring-open electromagnetic door lock

Technical Field

The utility model relates to the technical field of household appliances, especially a locking and unblock subassembly and automatic spring open electromagnetic door lock.

Background

The rotary door cover of a washing machine, especially a drum type washing machine, is locked or unlocked with a washing machine body by a locking device. A spring containing groove is formed in a sliding unlocking assembly of a locking device of an existing washing machine, a compression spring is located between the sliding unlocking assembly and a base, and the compression spring is limited by the spring containing groove. The spring accommodating groove can reduce the structural strength of the sliding unlocking assembly and simultaneously occupy the internal space of the sliding unlocking assembly, so that the arrangement of other elements of the sliding unlocking assembly is difficult; because the pressure that produces when the slip unblock subassembly slides is great, makes the compression spring be located the partial emergence side deviation of spring storage tank outside easily, leads to elasticity direction change and elasticity to reduce.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can not reduce structural strength, occupation space is less and after using for a long time less, increase of service life's locking and unblock subassembly and automatic spring-open electromagnetic door lock to solve above-mentioned problem to the influence of elasticity.

A locking and unlocking assembly is used for being matched with a sliding limiting pin unit to control the state of a locking hook unit which is rotatably arranged on an upper cover, and comprises a base and a sliding unit, wherein the base is arranged opposite to the upper cover, the base is provided with a first opening, the locking hook unit is at least partially positioned at the first opening, and the side surface of the base, facing the upper cover, is provided with a second sliding groove communicated with the first opening; the sliding unit comprises a main sliding block, a sector block and a second torsion spring, the main sliding block is slidably positioned in the second sliding chute, and the second torsion spring is positioned between one end of the main sliding block, which is far away from the first opening, and one end of the base, which is far away from the first opening; a fan-shaped groove is formed in one side, facing the upper cover, of the main sliding block, a second rotating shaft is arranged at the position, close to the circle center, of the fan-shaped groove in a protruding mode, a third avoiding groove is formed in the middle of one end, facing the first opening, of the main sliding block in a recessed mode, abutting blocks are formed at two ends of the third avoiding groove of the main sliding block, a second shaft hole is formed in the position, close to the circle center, of the fan-shaped block, the second rotating shaft penetrates through the second shaft hole of the fan-shaped block, a heart-shaped groove is formed in the side, facing the upper cover, of the fan-shaped block, a heart-shaped block is arranged in the middle; the heart-shaped block is provided with a tip part, a concave part far away from the tip part and shoulders positioned at two sides of the concave part; the heart-shaped groove is close to the tip of the heart-shaped block and is provided with a first limiting part at one end far away from the concave part, a second limiting part is arranged on the outer side of the concave part of the heart-shaped block, a third limiting part is arranged on the outer side of one shoulder part of the heart-shaped block, and a fourth limiting part is arranged on the outer side of the other shoulder part of the heart-shaped block.

Furthermore, the main slider is kept away from the one end of first opening and is seted up first locating hole, and the one end that first opening was kept away from to the base is provided with the second locating hole, and the main slider is kept away from first open-ended one end and is seted up the torsional spring storage tank towards one side of base, and the second torsional spring has torsional spring main part, first stabilizer blade and second stabilizer blade, and torsional spring main part movably is located the torsional spring storage tank, and first stabilizer blade is located first locating hole, and the second stabilizer blade is located the second locating hole.

Furthermore, a column winding groove and a communicating groove communicating the fan-shaped groove with the column winding groove are further formed in one side, facing the upper cover, of the main slider, a stepped groove is formed in one side, close to the communicating groove, of the fan-shaped groove, a first recessed avoiding groove is formed in the outer side of the stepped groove of the main slider, a partition wall is arranged between the first avoiding groove and the stepped groove, a second avoiding groove is formed in one side, facing the upper cover, of the partition wall, and a column winding groove is formed in the column winding groove; the column winding groove, the communication groove, the fan-shaped groove, the step groove, the second avoidance groove and the first avoidance groove are all positioned on the same side of the main sliding block; the sliding unit further comprises a butting block assembly, a second spring and a trigger rod, a spring groove is formed in the arc-shaped side face of the fan-shaped block, the butting block assembly is located in the spring groove, the second spring is sleeved on the part, located in the spring groove, of the butting block assembly, the trigger rod comprises a first rod part, a second rod part, a middle connecting part connected between the first rod part and the second rod part and a rotating part arranged at one end, far away from the middle connecting part, of the first rod part, a third shaft hole is formed in the middle of the rotating part, and the third shaft hole is connected with the winding column in a rotating mode; a part of the first rod part is positioned in the column winding groove, a part of the first rod part is positioned in the communicating groove, a part of the first rod part is positioned in the fan-shaped groove or the stepped groove, the intermediate connecting part is positioned in the second avoiding groove, and the second rod part is positioned in the first avoiding groove.

The electromagnetic unlocking unit comprises an electromagnetic unlocking shell, a thimble, a metal sliding block, an electromagnetic coil assembly and a third spring, wherein the thimble, the metal sliding block, the electromagnetic coil assembly and the third spring are arranged in the electromagnetic unlocking shell; the electromagnetic unlocking shell is provided with a third sliding groove towards one end of the base, the metal sliding block is located on one side, away from the base, of the third sliding groove, the ejector pin is located on one side, close to the base, of the third sliding groove, the ejector pin is provided with a second convex ring towards one end of the metal sliding block in a protruding mode, the outer side of the ejector pin is sleeved with a third spring, the first end of the third spring is abutted to the second convex ring, and the second end of the third spring is abutted to the base outside the first through hole.

An automatic spring-open electromagnetic door lock is provided with the locking and unlocking assembly.

Compared with the prior art, the locking and unlocking assembly comprises a base and a sliding unit, wherein the base and the upper cover are arranged oppositely, the base is provided with a first opening, the latch hook unit is at least partially positioned at the first opening, and the side surface of the base facing the upper cover is provided with a second chute communicated with the first opening; the sliding unit comprises a main sliding block, a sector block and a second torsion spring, the main sliding block is slidably positioned in the second sliding chute, and the second torsion spring is positioned between one end of the main sliding block, which is far away from the first opening, and one end of the base, which is far away from the first opening; a fan-shaped groove is formed in one side, facing the upper cover, of the main sliding block, a second rotating shaft is arranged at the position, close to the circle center, of the fan-shaped groove in a protruding mode, a third avoiding groove is formed in the middle of one end, facing the first opening, of the main sliding block in a recessed mode, abutting blocks are formed at two ends of the third avoiding groove of the main sliding block, a second shaft hole is formed in the position, close to the circle center, of the fan-shaped block, the second rotating shaft penetrates through the second shaft hole of the fan-shaped block, a heart-shaped groove is formed in the side, facing the upper cover, of the fan-shaped block, a heart-shaped block is arranged in the middle; the heart-shaped block is provided with a tip part, a concave part far away from the tip part and shoulders positioned at two sides of the concave part; the heart-shaped groove is close to the tip of the heart-shaped block and is provided with a first limiting part at one end far away from the concave part, a second limiting part is arranged on the outer side of the concave part of the heart-shaped block, a third limiting part is arranged on the outer side of one shoulder part of the heart-shaped block, and a fourth limiting part is arranged on the outer side of the other shoulder part of the heart-shaped block. The space that main slider was taken up in the setting that so can not reduce structural strength, the second torsional spring of main slider is less, and the second torsional spring is less to the influence of elasticity after long-term the use, has prolonged life. The utility model also provides an automatic spring-open electromagnetic door lock.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a first viewing angle of the automatic spring-open electromagnetic door lock provided by the present invention.

Fig. 2 is a schematic perspective view of a second viewing angle of the automatic spring-open electromagnetic door lock provided by the present invention.

Fig. 3 is a perspective view of the automatic unlatching electromagnetic door lock of fig. 1 with the base and the electromagnetic unlocking unit removed.

Fig. 4 is a schematic perspective view of the upper cover, the latch hook unit and the stopper pin unit in fig. 3.

Fig. 5 is a side sectional view of the stopper pin unit of fig. 4.

Fig. 6 is a perspective view of the latch hook unit of fig. 4.

Fig. 7 is a perspective view of the sliding unit, the limit pin unit and the latch hook unit.

Fig. 8 is an exploded view of the sliding unit.

Fig. 9 is a top view of the segment of fig. 8.

Fig. 10 is a perspective view of a first view of the sector of fig. 8.

Fig. 11 is a perspective view of the segment of fig. 8 from a second perspective.

Fig. 12 is a perspective view of the trigger lever of fig. 8.

Fig. 13 is a schematic view of the whole horizontal section of the automatic spring-open electromagnetic door lock provided by the present invention.

Fig. 14 is a schematic sectional view of the electromagnetic unlocking unit in fig. 13.

Fig. 15 is a schematic vertical sectional view of the electromagnetic door lock of the present invention.

Fig. 16 is a perspective view of the upper cover, the latch hook unit and the stopper pin unit in fig. 4 from another view angle.

Fig. 17 is a perspective view of the upper cover of fig. 16 from another perspective.

Fig. 18 is a schematic top view of the automatic unlatching electromagnetic door lock of fig. 2 without the slide unit, the electromagnetic unlatching unit, and the main circuit electromagnetic switch.

Fig. 19 is a perspective view of the automatic unlatching electromagnetic door lock of fig. 2 without the slide unit, the electromagnetic unlatching unit, and the main circuit electromagnetic switch.

Fig. 20 is a perspective view of the trigger slide of fig. 19.

Fig. 21 is a perspective view of a first view of the main circuit electromagnetic switch.

Fig. 22 is a perspective view of the main circuit electromagnetic switch from a second viewing angle.

Fig. 23 is a perspective view of a first viewing angle of the electromagnetic unlocking unit.

Fig. 24 is a perspective view of a second perspective view of the electromagnetic unlocking unit.

Fig. 25 is an internal schematic view of the electromagnetic unlocking unit.

Fig. 26 is an exploded view of a first perspective of a panel mounting structure.

Fig. 27 is an exploded view of a second perspective of the panel mounting structure.

Fig. 28 is a perspective view of the paddle of fig. 27.

Fig. 29 is a schematic view of a first state of the panel mounting structure.

Fig. 30 is a schematic view of a second state of the panel mounting structure.

Detailed Description

The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Referring to fig. 1 to 4, the present invention provides an automatic spring-open electromagnetic door lock, which includes a base 10, an upper cover 20 disposed opposite to the base 10, a latch hook unit 30 disposed on a side of the upper cover 20 facing the base 10 in an elastic rotation manner, a sliding limit pin unit 40 disposed on a side of the upper cover 20 facing the base 10, a sliding unit 50 slidably disposed on a side of the base 10 facing the upper cover 20, an electromagnetic unlocking unit 60 disposed on one side of the sliding unit 50 of the base 10, and a lock block 80 movably engaged with the latch hook unit 30.

The first end of the base 10 is provided with a first opening 11, and after the upper cover 20 is spliced with the base 10 relatively, the latch hook unit 30 is at least partially located at the first opening 11.

The locking block 80 comprises a first connecting plate 81 and a protrusion 82 vertically connected with the first connecting plate 81, wherein a plurality of first connecting holes 811 are formed in the first connecting plate 81, and a locking screw passes through the first connecting holes 811 and then is fixedly connected with a door cover of the washing machine, so that the locking block 80 is fixed on the door cover of the washing machine. One end of the washing machine door cover far away from the locking block 80 is rotationally connected with the washing machine main body through a rotational connection mechanism such as a hinge.

The middle part of one end of the protruding part 82 far away from the first connecting plate 81 is provided with a clamping groove 821, and one side of the clamping groove 821 far away from the first connecting plate 81 is provided with a smooth first guide surface 822.

The base 10, the upper cover 20, the latch hook unit 30, the sliding stopper pin unit 40, the sliding unit 50, and the electromagnetic unlocking unit 60 are integrally disposed at positions opposite to the locking pieces 80 on the washing machine main body.

When the door cover of the washing machine is rotated to be fitted with the body of the washing machine, the locking piece 80 and the latch hook unit 30 are engaged with each other.

Referring to fig. 4 and 5, a pair of first connecting posts 21 are oppositely protruded from the middle of the side of the upper cover 20 facing the base 10, a first shaft hole is formed on the first connecting posts 21, and a recessed spring accommodating portion 22 is formed on the outer side of the upper cover 20 away from the two first connecting posts 21.

The upper cover 20 is provided with a first strip-shaped chute 23 in a concave manner at one side of the two first connecting posts 21, the upper cover 20 is provided with a first limiting block 24 in a protruding manner at one side of the first chute 23 close to the first connecting posts 21, the upper cover 20 is provided with a second limiting block 25 in a protruding manner at one side of the first chute 23 far away from the first connecting posts 21, and the upper cover 20 is provided with a third limiting block 26 in a protruding manner at one corner close to the second limiting block 25. The length direction of the first sliding groove 23 is parallel to the first stopper 24 or the second stopper 25.

The latch hook unit 30 includes an eccentric rotation block 31, a first rotation shaft 32 perpendicularly connected to the eccentric rotation block 31 and located at an eccentric position of the eccentric rotation block 31, an operation lever 33 passing through a portion of the eccentric rotation block 31 near an edge, and a first torsion spring 34 fitted over the first rotation shaft 32. The edge of the eccentric rotation block 31 away from the operation rod 33 is separately provided with a clamping groove 311, the eccentric rotation block 31 is provided with a first lip 312 and a second lip 313 on two sides of the clamping groove 311, one side of the first lip 312 away from the clamping groove 311 is provided with a smooth second guide surface 3121, and one side of the second lip 313 away from the clamping groove 311 is provided with a recessed first abutting groove 3131. The first leg of the first torsion spring 34 abuts against the first abutting groove 3131, and the second leg abuts against the upper cover 20.

In this embodiment, the first torsion spring 34 includes two spiral portions 341 respectively sleeved on two ends of the first rotating shaft 32 located at two sides of the eccentric rotating block 31, a first leg 342 connected to the two spiral portions 341 and abutted against the first abutting groove 3131, and a second leg 343 connected to the two spiral portions 341 and abutted against the upper cover 20.

The first rotating shaft 32 passes through the first shaft hole of the first connecting column 21, and the spiral portion 341 of the first torsion spring 34 is located in the spring accommodating portion 22.

Further, a leg hole is also disposed in the spring receiving portion 22, and the second leg 343 of the first torsion spring 34 is located in the leg hole.

The first torsion spring 34 provides a rotational driving force to the locking hook unit 30, so that the catching groove 311 of the locking hook unit 30 faces the first opening 11 of the base 10, i.e. when there is no other component, the locking hook unit 30 will be in the unlocking state with the locking block 80 under the action of the first torsion spring 34. At this time, the locking piece 80 can freely enter the first opening 11 without being engaged with the locking hook unit 30.

Referring to fig. 6, the sliding pin unit 40 includes a disc 41, a positioning post 42 vertically protruding from a middle portion of a first side of the disc 41, a guide pin 43, and a first spring 44.

The middle part of the disc 41 far away from the positioning column 42 is provided with a guide pin groove, the guide pin groove extends to the inside of the positioning column 42, the first spring 44 is located at the bottom of the guide pin groove, and the positioning column 42 is partially located in the guide pin groove and is abutted against the first spring 44.

The distance between the first stopper 24 and the second stopper 25 is equal to or equivalent to the diameter of the disc 41. The positioning column 42 of the sliding limiting pin unit 40 extends into the first sliding groove 23, and the disc 41 is located between the first limiting block 24 and the second limiting block 25.

Referring to fig. 7 and 8, the sliding unit 50 includes a main slider 51, a sector 52, an abutting block assembly 53, a second spring 54, a trigger lever 55 and a second torsion spring 56.

The side of the base 10 facing the upper cover 20 is provided with a second sliding slot communicated with the first opening 11, the main slider 51 is slidably located in the second sliding slot, and the second torsion spring 56 is located between one end of the main slider 51 far away from the first opening 11 and one end of the base 10 far away from the first opening 11.

The main slider 51 is provided with a fan-shaped groove 511, a column-winding groove 513, a communicating groove 514 communicating the fan-shaped groove 511 with the column-winding groove 513 on one side of the main slider 51 facing the upper cover 20, a stepped groove 5111 is arranged on one side of the fan-shaped groove 511 close to the communicating groove 514, a first recessed avoiding groove 515 is arranged on the outer side of the stepped groove 5111 of the main slider 51, a partition wall is arranged between the first avoiding groove 515 and the stepped groove 5111, and a second avoiding groove 501 is arranged on one side of the partition wall facing the upper cover 20. A winding post 516 is disposed in the winding post groove 513.

In the present embodiment, the column-surrounding groove 513, the communication groove 514, the fan-shaped groove 511, the stepped groove 5111, the second avoidance groove 501, and the first avoidance groove 515 are all located on the same side of the main slider 51.

The second rotating shaft 512 is protrudingly arranged at the position of the fan-shaped groove 511 close to the center of the circle.

The middle of one end of the main slider 51 facing the first opening 11 is concavely provided with a third avoiding groove 517 for the first lip 312 of the eccentric rotating block 31 to rotate, so as to avoid the main slider 51 interfering with the first lip 312.

The main slider 51 is provided with an abutting block 5171 at two ends of the third avoiding groove 517, and an edge of the abutting block 5171 close to the upper cover 20 is provided with a first inclined guiding surface 5172.

Referring to fig. 13, a first limiting groove 518 is formed in a side of the main slider 51 facing the upper cover 20 and located on a side of the fan-shaped groove 511 away from the first opening 11, a first positioning hole 519 is formed in an end of the main slider 51 away from the first opening 11, a second positioning hole 13 is formed in an end of the base 10 away from the first opening 11, and a torsion spring accommodating groove is formed in an end of the main slider 51 away from the first opening 11 and facing the side of the base 10.

The second torsion spring 56 has a torsion spring body, a first leg and a second leg. The torsion spring main body is movably located in the torsion spring accommodating groove, the first leg of the second torsion spring 56 is located in the first positioning hole 519, and the second leg is located in the second positioning hole 13. When the main slider 51 slides to an end away from the first opening 11, the torsion spring main body of the second torsion spring 56 is completely located in the torsion spring accommodating groove, so that the sliding space of the main slider 51 is not affected, the main slider 51 does not interfere with the sliding, and only the slider 51 is acted with elastic force.

The second torsion spring 56 gives a driving force to the main slider 51, so that the main slider 51 slides towards the first opening 11, and further the abutting block 5171 of the main slider 51 abuts against the operating rod 33, and pushes the eccentric rotating block 31 to rotate around the first rotating shaft 32 until the catching groove 311 of the locking hook unit 30 is perpendicular to the first opening 11 of the base 10. At this time, the latch hook unit 30 is in a locked state, and if the first lip 312 is located in the catch groove 821 of the lock block 80, the lock block 80 and the latch hook unit 30 are mutually locked in a catch manner.

When the abutment block 5171 of the main slider 51 is just brought into abutment with the operating lever 33, the operating lever 33 rotates and moves along the first guide inclined surface 5172.

The opening angle of the sector slot 511 is larger than that of the sector 52, a second shaft hole 521 is formed at the position of the sector 52 close to the circle center, and the second rotating shaft 512 penetrates through the second shaft hole 521 of the sector 52, so that the sector 52 is rotatably positioned in the sector slot 511.

The side of the sector 52 facing the upper cover 20 is opened with a heart-shaped groove 522, and the center of the heart-shaped groove 522 is convexly provided with a heart-shaped block 523.

The arc-shaped side surface of the fan-shaped block 52 is provided with a spring groove 524, the abutting block assembly 53 comprises a guide rod 531 and a circular block 532 arranged at the tail end of the guide rod 531, one end of the guide rod 531 facing the circular block 532 is further provided with a first convex ring 533 in a protruding mode along the radial direction, the second spring 54 is sleeved on the guide rod 531, one end, not provided with the circular block 532, of the guide rod 531 is located in the spring groove 524, the first end of the second spring 54 abuts against the bottom wall of the spring groove 524, and the second end of the second spring abuts against the first convex ring 533.

The end of the guide pin 43 remote from the disc 41 is movably located in the heart-shaped slot 522. Because the sliding stopper pin unit 40 is limited by the first and second stoppers 24 and 25, it cannot move in the sliding direction of the main slider 51 but only in the direction perpendicular to the sliding direction of the main slider 51, and when the guide pin 43 of the sliding stopper pin unit 40 is located at a different position in the heart-shaped groove 522, it can limit the sliding distance of the main slider 51, thereby controlling the rotation of the eccentric rotation block 31 and realizing the switching between the unlocking state and the locking state of the latch hook unit 30.

Referring to fig. 9-11, the heart-shaped block 523 has a tip, a recess away from the tip, and shoulders on both sides of the recess. The heart-shaped groove 522 is close to the tip of the heart-shaped block 523 and has a first limit part a at one end far away from the concave part, a second limit part B is arranged at the outer side of the concave part of the heart-shaped block 523, a third limit part C is arranged at the outer side of one shoulder part of the heart-shaped block 523, a fourth limit part D is arranged at the outer side of the other shoulder part of the heart-shaped block 523, a first climbing E is arranged between the first limit part a and the third limit part C and at the outer side of the heart-shaped block 523, a first plane F is arranged between the first climbing E and the third limit part C, a second climbing G and a third climbing I are arranged between the fourth limit part D and the first limit part a and at the outer side of the heart-shaped block 523, and a second plane H is arranged between the second climbing G and the third climbing I.

Wherein, the guide pin 43 is in an unlocking state when being positioned at the first limiting part A; when the guide pin 43 is located at the second limit portion B, it is in a locked state, and at this time, the movement of the guide pin 43 is limited by the two shoulders of the heart block 523 and cannot move; if the movement is to be resumed, the guide pin 43 needs to be moved out of the second stopper portion B.

When the guide pin 43 moves from the first limiting part a to the second limiting part B, the guide pin needs to pass through the third limiting part C and then is folded back to the second limiting part B; when the guide pin 43 moves from the second position-limiting portion B to the first position-limiting portion a, it needs to pass through the fourth position-limiting portion D and then be folded back to the first position-limiting portion a. Therefore, the unlocking can be realized by pressing the door cover of the washing machine, so that the locking block 80 drives the eccentric rotating block 31 to rotate for a certain angle.

The depth of the heart-shaped groove 522 in the first limiting part a and the fourth limiting part D is the same or equivalent, the depth in the second limiting part B is smaller than the depth of the first limiting part a or the fourth limiting part D, and the depth of the third limiting part C is smaller than the depth of the second limiting part B; the depth of the second plane H is the same as or equivalent to that of the second limiting part B; the depth of the first plane F is smaller than that of the third limiting part C.

The depth of the first climbing slope E is gradually reduced from one end close to the first limiting part A to one end close to the first plane F; the second climbing slope G is gradually reduced from one end close to the fourth limiting part D to one end close to the second plane H; the third climbing slope I is gradually reduced from one end close to the second plane H to one end close to the first limiting part A.

Thus, the guide pin 43 of the sliding pin unit 40 can only move in the central groove 522 along a specific direction, such as climbing from the first position-limiting portion a along the first slope E, falling into the third position-limiting portion C, then falling into the second position-limiting portion B, then falling into the fourth position-limiting portion D, then climbing along the second slope G and the third slope I, and finally falling back into the first position-limiting portion a.

The first limiting portion a, the second limiting portion B, the third limiting portion C, and the fourth limiting portion D can make the guide pin 43 in various states, and improve the stability of each state. When the state needs to be switched, the guide pin 43 can be guided by the first climbing E, the second climbing G and the third climbing I, so that the guide pin 43 can be smoothly transited when being switched among different states. The first plane F and the second plane H enable the retention of the guide pin 43 in the transitional state.

The base 10 and the sliding unit 50 constitute a locking and unlocking assembly provided by the present invention.

Since the sliding stopper pin unit 40 is restricted by the first stopper 24 and the second stopper 25, and cannot move in the sliding direction of the main slider 51, but can only move in the direction perpendicular to the sliding direction of the main slider 51, the main slider 51 will passively slide and slide to different positions in different states of the guide pin 43, thereby controlling the rotation of the eccentric rotating block 31 and realizing the switching between the unlocking state and the locking state of the latch hook unit 30.

Referring to fig. 12, the trigger lever 55 includes a first lever portion 551, a second lever portion 552, an intermediate connecting portion 553 connected between the first lever portion 551 and the second lever portion 552, and a rotating portion 554 disposed at an end of the first lever portion 551 away from the intermediate connecting portion 553.

The intermediate connecting portion 553 connects the side of the same side of the first rod portion 551 and the second rod portion 552, and the rotating portion 554 is vertically connected to the side of the first rod portion 551 where the intermediate connecting portion 553 is provided. The middle of the rotating portion 554 is formed with a third axial hole 5541, and a pin passes through the third axial hole 5541 and is connected to the winding post 516, so that the triggering lever 55 is rotatably connected to the winding post 516. The first lever portion 551 has a portion located in the column-surrounding groove 513, a portion located in the communication groove 514, a portion located in the fan-shaped groove 511 or the step groove 5111, the intermediate connecting portion 553 located in the second avoiding groove 501, and the second lever portion 552 located in the first avoiding groove 515. Therefore, the trigger rod 55 can be conveniently mounted and dismounted, and the working efficiency of mounting or dismounting the trigger rod 55 is improved.

The side of the first rod portion 551 close to the intermediate connecting portion 553 is inclined in a direction away from the second rod portion 552, forming an inclined portion.

Referring to fig. 13, the inclined portion of the first rod portion 551 is located in the stepped groove 5111 and movably opposite to the spring groove 524 of the segment 52, the base 10 is provided with a through hole nozzle 12 extending outward at a position corresponding to the first avoiding groove 515, a first through hole is formed in a middle portion of the through hole nozzle 12, and the electromagnetic unlocking unit 60 is disposed outside a side of the base 10 having the through hole nozzle 12.

Referring to fig. 14, the electromagnetic unlocking unit 60 includes an electromagnetic unlocking housing 61, a thimble 62 disposed in the electromagnetic unlocking housing 61, a metal slider 63, a solenoid assembly 64, and a third spring 65.

The electromagnetic unlocking housing 61 is provided with a third sliding groove 611 at one end facing the base 10, the metal slider 63 is located at one side of the third sliding groove 611 far away from the base 10, the thimble 62 is located at one side of the third sliding groove 611 close to the base 10, one end of the thimble 62 facing the metal slider 63 is provided with a second convex ring 621 in a protruding manner, the third spring 65 is sleeved on the outer side of the thimble 62, and the perforation nozzle 12 at least partially extends into the third sliding groove 611.

The third spring 65 has a first end abutting against the second protruding ring 621 and a second end abutting against the piercing nozzle 12. The thimble 62 is movably inserted into the first through hole of the piercing nozzle 12 and abuts against the second rod 552.

When the sector 52 rotates until the spring groove 524 faces the step groove 5111, the guide rod 531 and the round block 532 move towards the step groove 5111 under the action of the second spring 54, so that the round block 532 enters the step groove 5111, and at this time, if no external force acts, the round block 532 is clamped into the step groove 5111 and cannot come out, the sector 52 cannot rotate in the sector groove 511, the main slider 51 cannot move, and at this time, the locking state is achieved.

The electromagnetic coil assembly 64 is disposed outside the third sliding slot 611, and when the electromagnetic coil assembly 64 is energized, an electromagnetic force is generated to attract the metal slider 63 to move toward the piercing nozzle 12, so as to drive the thimble 62 to extend into the first through hole of the piercing nozzle 12 and abut against the second rod portion 552, so that the inclined portion of the first rod portion 551 pushes the round block 532 out of the stepped slot 5111, and the fan-shaped block 52 can rotate in the fan-shaped slot 511, so that the main slider 51 can slide, and at this time, the unlocking state is achieved.

The unlocking of the automatic flick electromagnetic door lock can be realized by controlling the electrification or non-electrification of the electromagnetic coil assembly 64 of the electromagnetic unlocking unit 60.

As can be seen from fig. 15, the sliding stopper pin unit 40 is stopped by the first stopper 24 and the second stopper 25, and cannot move in the sliding direction of the main slider 51, but can only move in the direction perpendicular to the sliding direction of the main slider 51, so that the main slider 51 passively slides, and slides to different positions in different states of the guide pin 43, and further controls the rotation of the eccentric rotation block 31, thereby switching between the unlocking state and the locking state of the latch hook unit 30.

Referring to fig. 16 and 17, in this embodiment, the first limiting block 24 is fixedly connected to the upper cover 20, the second limiting block 25 is a metal rotating plate, the middle portion of the second limiting block 25 is rotatably connected to the upper cover 20 through a third rotating shaft 251, one end of the second limiting block 25 facing the base 10 protrudes from the upper cover 20 and is flush with the first limiting block 24, and a fourth spring 252 is connected between one end of the second limiting block 25 away from the base 10 and the upper cover 20.

When the locking hook unit 30 is in the locked state and the first lip 312 is located in the catch groove 821 of the locking block 80, if the locking block 80 is pulled outwards by force, the eccentric rotating block 31 passively rotates by an angle, so that the disc 41 moves in a direction away from the locking hook unit 30, and further the second limiting block 25 is pushed to rotate by an angle around the third rotating shaft 251 to vacate a certain moving interval for the disc 41, so that the guide pin 43 switches a state in the heart-shaped groove 522, thereby unlocking the locking hook unit 30, enabling the eccentric rotating block 31 to rotate by a larger angle, and further enabling the locking block 80 to be disengaged from the locking hook unit 30. The unlocking mode is a strong pulling and strong pushing unlocking mode, and if a child is trapped in the washing machine, the child can push the washing machine door cover outwards to realize unlocking, so that the safety is improved.

The side of the segment 52 away from the opening of the spring slot 524 is provided with a corner 525, when the segment 52 is deflected and the main slider 51 moves in a direction away from the locking hook unit 30, the third stopper 26 of the upper cover 20 abuts against the corner 525 of the segment 52, and the third stopper 26 moves the corner 525, thereby shifting the segment 52 to the undeflected position.

Referring to fig. 1 to fig. 3, and fig. 21 and fig. 22, the automatic spring-open electromagnetic door lock of the present invention further includes a main loop electromagnetic switch 70 connected to a main circuit in the washing machine main body, wherein the main loop electromagnetic switch 70 is disposed on a side of the sliding unit 50 away from the base 10. The main circuit electromagnetic switch 70 includes a switch case 71, a main body switch located in the switch case 71, a protection switch connected to the main body switch, a switch button 72 for controlling the main body switch, an interlocking projection 73, and an interlocking mechanism for connecting the switch button 72 and the interlocking projection 73.

The first end of the switch shell 71 is provided with a button slot 713, the switch button 72 is positioned in the button slot 713, the side of the switch shell 71 facing the base 10 is provided with a linkage slot 711, the linkage projection 73 is positioned in the linkage slot 711, and the tail end of the linkage projection 73 can movably extend out of the linkage slot 711. When the switch button 72 is pressed once, the link mechanism drives the link projection 73 to extend out of the link groove 711; when the switch button 72 is pressed again, the link mechanism brings the link projection 73 to retract into the link groove 711.

When the linking protrusion 73 protrudes from the linking groove 711, the linking protrusion 73 further protrudes into the first limiting groove 518 of the main slider 51, so as to limit the movement of the main slider 51, at this time, the main switch is turned on, the washing machine enters a working state, and the main slider 51 is locked by the linking protrusion 73, so that the main slider 51 is in a locking state, that is, the door cover of the washing machine cannot be opened at this time.

When the linkage protrusion 73 retracts into the linkage groove 711, the main slider 51 is in a slidable state, the main switch is turned off, and the washing machine enters a non-operating state, that is, the washing machine door can be opened. Therefore, the reliability and the safety of the washing machine during working are improved, and the door cover of the washing machine is prevented from being opened in the working process.

The switch case 71 has a first terminal opening 714 at a second end thereof, and a first connection terminal 742 is provided in the first terminal opening 714.

The switch shell 71 is provided with a second through hole on one side of the main slider 51 far away from the switch button 72, a protection trigger rod 74 is arranged in the second through hole, the first end of the protection trigger rod 74 is movably abutted against the protection switch, and the other end of the protection trigger rod passes through the second through hole and is located on the outer side of the switch shell 71. Be provided with reset spring between the first end of protection trigger bar 74 and the inside wall of switch casing 71, reset spring drive protection trigger bar 74 moves towards the direction of keeping away from protection switch, and when protection trigger bar 74 was pressed, the first end and the protection switch butt of protection trigger bar 74 to trigger protection switch, and then make the main part switch turn-off.

Referring to fig. 18 and 19, the base 10 is provided with a pressing hole 15 on an outer side of the switch button 72 of the main circuit electromagnetic switch 70, the base 10 is elastically connected with a pressing piece 14 on the outer side of the pressing hole 15, a pressing protrusion 141 is protruded from a middle portion of the pressing piece 14 toward the pressing hole 15, and the pressing protrusion 141 movably extends into the pressing hole 15 and abuts against the switch button 72.

The utility model provides an automatic electromagnetic door lock is opened to bullet still includes major loop trigger unit, and major loop trigger unit is including triggering slider 90 and fifth spring 91.

The base 10 is provided with a trigger sliding groove 16 parallel to the sliding direction of the main slider 51 on one side of the main slider 51 away from the switch button 72, the trigger slider 90 is slidably located in the trigger sliding groove 16, and the fifth spring 91 is disposed between one end of the trigger sliding groove 16 and the trigger slider 90.

The main slider 51 is provided with a pusher 5101 protruding toward one side of the trigger chute 16.

Referring to fig. 20, the trigger slider 90 includes a slider main body 92, and a first protrusion 93, a second protrusion 94 and a third protrusion 95 sequentially disposed along the length of the slider main body 92, wherein the heights of the first protrusion 93 and the third protrusion 95 relative to the slider main body 92 are both greater than the heights of the second protrusion 94 relative to the slider main body 92, a second guiding inclined surface 931 is disposed at a portion of the first protrusion 93 close to the second protrusion 94, and the height of the second guiding inclined surface 931 is gradually increased from an end close to the second protrusion 94 toward an end of the first protrusion 93.

One side of the second protrusion 94 facing the main slider 51 is provided with a toggle groove 96, the width of the toggle groove 96 along the sliding direction of the main slider 51 is greater than the width of the toggle block 5101 along the sliding direction of the main slider 51, and the toggle block 5101 is located in the toggle groove 96.

A spring limiting groove 97 is formed in one end, away from the first protruding portion 93, of the third protruding portion 95, a first spring positioning block 98 is arranged at the bottom of the spring limiting groove 97 in a protruding mode, a second spring positioning block is arranged at one end, protruding out of the triggering sliding groove 16, of the fifth spring 91, the first end of the fifth spring 91 is located in the spring limiting groove 97 and sleeved on the first spring positioning block 98, and the second end of the fifth spring 91 is sleeved on the second spring positioning block.

When the main slider 51 moves in a direction away from the first opening 11, the shifting block 5101 drives the trigger slider 90 to move in a direction away from the first opening 11, so that the second guide inclined surface 931 moves relative to the protection trigger rod 74, and the protection trigger rod 74 is gradually pressed, when the protection trigger rod 74 abuts against the top surface of the first protruding portion 93, the protection trigger rod 74 is pressed in place, the first end of the protection trigger rod 74 abuts against the protection switch, so that the protection switch is triggered, and the main switch is turned off, and at this time, the latch hook unit 30 is in an unlocking state. Therefore, unexpected opening of the main body switch during unlocking is avoided, and the safety is improved.

When the main slider 51 moves toward the first opening 11, the dial 5101 moves completely in the dial groove 96, the trigger slider 90 returns to the initial state by the fifth spring 91, the protection trigger lever 74 is opposite to the second protrusion 94, and the protection trigger lever 74 is not pressed due to the low height of the second protrusion 94, so that the protection switch is not triggered, and at this time, the state of the main body switch is determined by the switch button 72, and the latch hook unit 30 is in the locked state.

Referring to fig. 23 to fig. 25, a second terminal opening 613 is formed at an end of the electromagnetic unlocking casing 61 away from the base 10, and a second connection terminal 644 is disposed in the second terminal opening 613. The solenoid assembly 64 includes the solenoid 61, a fixed connection terminal 642 connected to the solenoid 61, and an elastic conductive portion 643 connected between the second connection terminal 644 and the fixed connection terminal 642. The second connection terminal 644 is provided with a plug structure and can be conveniently matched with an external socket, so that the connection between the electromagnetic unlocking unit 60 and a power supply is simpler and more reliable, a long cable is avoided, interference with other parts is avoided, and the cost is reduced.

Please refer to fig. 26 and 27, the automatic spring-open electromagnetic door lock of the present invention further includes a panel mounting structure, the base 10 is provided with a mounting plate 17 outside the first opening 11, the mounting plate 17 extends outwards from both sides of the first opening 11 and is provided with an extending portion 171 protruding from the base 10, the outer side of the washing machine main body is provided with a panel, a door lock mounting hole is opened on the panel, and the length of the door lock mounting hole is slightly smaller than the length of the mounting plate 17. During the installation, the utility model provides an automatic electromagnetism lock is opened to bullet stretches out one of them extension 171 from the lock mounting hole of panel from the inboard of panel, stretches out another extension 171 from the lock mounting hole of panel again, will the utility model provides an automatic electromagnetism lock is opened to bullet is ajusted, this moment the utility model provides an automatic electromagnetism lock is opened to bullet although can install on the panel, nevertheless the utility model provides an automatic electromagnetism lock is opened to bullet can produce to rock to the panel.

The panel mounting structure includes a locking slider 102 and a sixth spring 103.

Two guide lugs 201 are oppositely and protrudingly arranged at the position of the upper cover 20 opposite to the extending portion 171 of the mounting plate 17, first guide grooves 202 are respectively formed in the opposite side surfaces of the two guide lugs 201, a spring groove 203 is formed at the position of the upper cover 20 close to the guide lugs 201, and the sixth spring 103 is located in the spring groove 203.

The base 10 is provided with a second guide groove 101 at a position close to the extending portion 171 and facing one side of the guide protrusion 201, and a third guide groove 1011 communicating with the second guide groove 101 is provided at an outer side of the second guide groove 101.

Referring to fig. 28, the locking slider 102 includes a first slider 1021 and a second slider 1024 that are parallel and connected in a staggered manner, a first end of the first slider 1021 is connected in a staggered manner with a first end of the second slider 1024, a second end of the first slider 1021 is provided with an operating portion 1023 protruding from a side surface of the second slider 1024, two sides of the first slider 1021 facing the side surface of the second slider 1024 are respectively provided with a first guide rail 1022 in a protruding manner, and the first guide rail 1022 is slidably located in the first guide groove 202; a spring abutting groove 1026 is formed at a first end of the second slider 1024, one end of the sixth spring 103, which is far away from the spring groove 203, is located in the spring abutting groove 1026, second guide rails 1025 respectively protrude and extend from two sides of a side surface of the second slider 1024, which is far away from the first slider 1021, the second guide rails 1025 are slidably located in the second guide groove 101, and an abutting head 1027 is arranged at a second end of the second slider 1024.

Please refer to fig. 29 and fig. 30, when installing the automatic pop-up electromagnetic door lock provided by the present invention on the panel, the operation portion 1023 is operated first, so that the locking slider 102 moves towards the upper cover 20, and the sixth spring 103 is compressed, so that a gap is vacated between the abutting head 1027 and the extension portion 171, the extension portion 171 close to the locking slider 102 extends out from the door lock mounting hole of the panel, so that the panel is located in the gap between the abutting head 1027 and the extension portion 171, and then another extension portion 171 extends out from the door lock mounting hole of the panel, which is justified the present invention provides an automatic pop-up electromagnetic door lock, and then the operation portion 1023 is loosened, the locking slider 102 moves towards the base 10 under the effect of the sixth spring 103, so as to abut against the panel, thereby the present invention can perform spacing fixation on the automatic pop-up electromagnetic door lock, and avoid the automatic pop-up electromagnetic door lock from shaking with the.

Compared with the prior art, the locking and unlocking assembly of the utility model comprises a base 10 and a sliding unit 50, wherein the base 10 is arranged opposite to the upper cover 20, the base 10 is provided with a first opening 11, the latch hook unit 30 is at least partially positioned at the first opening 11, and the side surface of the base 10 facing the upper cover 20 is provided with a second chute communicated with the first opening 11; the sliding unit 50 comprises a main sliding block 51, a sector 52 and a second torsion spring 56, the main sliding block 51 is slidably located in the second sliding chute, and the second torsion spring 56 is located between one end of the main sliding block 51 far away from the first opening 11 and one end of the base 10 far away from the first opening 11; one side of the main slider 51 facing the upper cover 20 is provided with a fan-shaped groove 511, a second rotating shaft 512 is convexly arranged at the position of the fan-shaped groove 511 close to the circle center, the middle of one end of the main slider 51 facing the first opening 11 is concavely provided with a third avoiding groove 517, two ends of the third avoiding groove 517 are provided with abutting blocks 5171 of the main slider 51, a second shaft hole 521 is arranged at the position of the fan-shaped block 52 close to the circle center, the second rotating shaft 512 penetrates through the second shaft hole 521 of the fan-shaped block 52, a heart-shaped groove 522 is arranged on the side of the fan-shaped block 52 facing the upper cover 20, a heart-shaped block 523 is convexly arranged at the middle of the heart-shaped groove 522, and one end of the sliding limiting pin unit 40 far away from the; the heart block 523 has a tip, a recess away from the tip, and shoulders on both sides of the recess; the heart-shaped groove 522 is provided with a first limiting part A at one end close to the tip of the heart-shaped block 523 and far away from the concave part, a second limiting part B is arranged at the outer side of the concave part of the heart-shaped block 523 in the heart-shaped groove 522, a third limiting part C is arranged at the outer side of one shoulder part of the heart-shaped block 523 in the heart-shaped groove 522, and a fourth limiting part D is arranged at the outer side of the other shoulder part of the heart-shaped block 523 in the heart-shaped groove 522. The structural strength of the main slider 51 cannot be reduced, the space occupied by the second torsion spring 56 is small, the influence of the second torsion spring 56 on elasticity after long-term use is small, and the service life is prolonged. The utility model also provides an automatic spring-open electromagnetic door lock.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims (5)

1. The utility model provides a locking and unblock subassembly for with a slip spacer pin unit cooperation with a state of controlling a lock hook unit that sets up on an upper cover, its characterized in that: the locking and unlocking assembly comprises a base and a sliding unit, the base and the upper cover are arranged oppositely, a first opening is formed in the base, the locking hook unit is at least partially positioned at the first opening, and a second sliding groove communicated with the first opening is formed in the side surface, facing the upper cover, of the base; the sliding unit comprises a main sliding block, a sector block and a second torsion spring, the main sliding block is slidably positioned in the second sliding chute, and the second torsion spring is positioned between one end of the main sliding block, which is far away from the first opening, and one end of the base, which is far away from the first opening; a fan-shaped groove is formed in one side, facing the upper cover, of the main sliding block, a second rotating shaft is arranged at the position, close to the circle center, of the fan-shaped groove in a protruding mode, a third avoiding groove is formed in the middle of one end, facing the first opening, of the main sliding block in a recessed mode, abutting blocks are formed at two ends of the third avoiding groove of the main sliding block, a second shaft hole is formed in the position, close to the circle center, of the fan-shaped block, the second rotating shaft penetrates through the second shaft hole of the fan-shaped block, a heart-shaped groove is formed in the side, facing the upper cover, of the fan-shaped block, a heart-shaped block is arranged in the middle; the heart-shaped block is provided with a tip part, a concave part far away from the tip part and shoulders positioned at two sides of the concave part; the heart-shaped groove is close to the tip of the heart-shaped block and is provided with a first limiting part at one end far away from the concave part, a second limiting part is arranged on the outer side of the concave part of the heart-shaped block, a third limiting part is arranged on the outer side of one shoulder part of the heart-shaped block, and a fourth limiting part is arranged on the outer side of the other shoulder part of the heart-shaped block.

2. The locking and unlocking assembly of claim 1, wherein: the main slider is kept away from the one end of first opening and has been seted up first locating hole, and the one end that first opening was kept away from to the base is provided with the second locating hole, and the main slider is kept away from first open-ended one end and has been seted up the torsional spring storage tank towards one side of base, and the second torsional spring has torsional spring main part, first stabilizer blade and second stabilizer blade, and torsional spring main part movably is located the torsional spring storage tank, and first stabilizer blade is located first locating hole, and the second stabilizer blade is located the second locating hole.

3. The locking and unlocking assembly of claim 1, wherein: a winding column groove and a communicating groove communicating the fan-shaped groove with the winding column groove are further formed in one side, facing the upper cover, of the main sliding block, a stepped groove is formed in one side, close to the communicating groove, of the fan-shaped groove, a first concave avoiding groove is formed in the outer side of the stepped groove of the main sliding block, a partition wall is arranged between the first avoiding groove and the stepped groove, a second avoiding groove is formed in one side, facing the upper cover, of the partition wall, and a winding column is arranged in the winding column groove; the column winding groove, the communication groove, the fan-shaped groove, the step groove, the second avoidance groove and the first avoidance groove are all positioned on the same side of the main sliding block; the sliding unit further comprises a butting block assembly, a second spring and a trigger rod, a spring groove is formed in the arc-shaped side face of the fan-shaped block, the butting block assembly is located in the spring groove, the second spring is sleeved on the part, located in the spring groove, of the butting block assembly, the trigger rod comprises a first rod part, a second rod part, a middle connecting part connected between the first rod part and the second rod part and a rotating part arranged at one end, far away from the middle connecting part, of the first rod part, a third shaft hole is formed in the middle of the rotating part, and the third shaft hole is connected with the winding column in a rotating mode; a part of the first rod part is positioned in the column winding groove, a part of the first rod part is positioned in the communicating groove, a part of the first rod part is positioned in the fan-shaped groove or the stepped groove, the intermediate connecting part is positioned in the second avoiding groove, and the second rod part is positioned in the first avoiding groove.

4. The locking and unlocking assembly of claim 3, wherein: the electromagnetic unlocking unit is arranged on one side of the sliding unit of the base, a first through hole is formed in the position, corresponding to the first avoiding groove, of the base, and the electromagnetic unlocking unit comprises an electromagnetic unlocking shell, a thimble, a metal sliding block, an electromagnetic coil assembly and a third spring, wherein the thimble, the metal sliding block, the electromagnetic coil assembly and the third spring are arranged in the electromagnetic unlocking shell; the electromagnetic unlocking shell is provided with a third sliding groove towards one end of the base, the metal sliding block is located on one side, away from the base, of the third sliding groove, the ejector pin is located on one side, close to the base, of the third sliding groove, the ejector pin is provided with a second convex ring towards one end of the metal sliding block in a protruding mode, the outer side of the ejector pin is sleeved with a third spring, the first end of the third spring is abutted to the second convex ring, and the second end of the third spring is abutted to the base outside the first through hole.

5. The utility model provides an automatic spring open electromagnetism lock which characterized in that: having a locking and unlocking assembly as claimed in any one of claims 1-4.

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