CN210239384U - Electromagnetic unlocking unit and automatic spring-open electromagnetic door lock - Google Patents

Abstract

An electromagnetic unlocking unit comprises an electromagnetic unlocking shell, a plastic ejector rod, a metal sliding block, an electromagnetic coil assembly and a third spring, wherein the plastic ejector rod, the metal sliding block, the electromagnetic coil assembly and the third spring are arranged in the electromagnetic unlocking shell; the third spout has been seted up to the one end of electromagnetism unblock casing, and metal sliding block is cylindrical, and metal sliding block is arranged in the third spout and keeps away from the open-ended one side of third spout, and the plastics ejector pin is arranged in the third spout and is close to the open-ended one side of third spout, and the plastics ejector pin is provided with the second bulge loop near protruding on metal sliding block's the lateral wall, and the outside of plastics ejector pin is located to the third spring housing, the first end and the second bulge loop butt of third spring, and the second end stretches out in the outside of first through-hole. The manufacturing method of the metal sliding block and the plastic ejector rod is simple, the manufacturing cost is low, the plastic ejector rod is always abutted to the metal sliding block and cannot freely slide, the plastic ejector rod, the trigger rod and the metal sliding block are prevented from being damaged, and the plastic ejector rod is not easy to lose. The utility model also provides an automatic spring-open electromagnetic door lock.

Description

Electromagnetic unlocking unit and automatic spring-open electromagnetic door lock

Technical Field

The utility model relates to the technical field of household appliances, especially an electromagnetism unblock unit and automatic spring-open electromagnetic 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. In order to realize electronic control or remote control, this locking device of current washing machine has a slider, first rotation groove has been seted up to the first side of slider, be located the step groove of first rotation inslot and be located the butt groove in the step groove outside, the second has been seted up to the second side, be provided with the turning block in the first rotation groove with rotating, the edge of turning block is equipped with the spring groove, the spring inslot is equipped with the spring, a butt pole passes the spring and at least partially lies in the outside of spring groove, when the turning block rotates the spring groove towards the step groove, the butt pole stretches into in the step groove under the effect of spring, thereby make the turning block can't rotate to other angles, be the dead state of lock this moment promptly. An operating lever is rotatably disposed adjacent to the stepped groove.

When locking device is in the lock dead state, an electromagnetism subassembly is withstood the action bars after the circular telegram and is rotated certain angle, and the action bars acts on the butt pole for the butt pole retracts in the spring groove, thereby makes locking device remove the lock dead state, and the turning block can rotate to other angles, thereby enters into the unblock state.

A through hole is formed in the position, close to the step groove, of a shell of the locking device, an existing electromagnetic assembly comprises an assembly shell, a metal ejector pin, a sliding iron core, an electromagnetic coil and a spring, a sliding groove opposite to the through hole is formed in the assembly shell, the metal ejector pin is located on one side, close to the through hole, of the sliding groove, the sliding iron core is located on one side, away from the through hole, of the sliding groove, the electromagnetic coil is wound outside the sliding groove, and the spring is located between the shell of the. After the electromagnetic coil is electrified, the sliding iron core is driven to move towards the abutting rod, so that the metal ejector pin is pushed to abut against the abutting rod and the abutting rod is pressed and retracted into the spring groove. In order to position the spring conveniently, a positioning column with the diameter smaller than the caliber of the spring is required to be arranged at one end, facing the through hole, of the sliding iron core, and the positioning column penetrates through the spring. Because the sliding iron core is difficult to process, the material waste is serious when the positioning column is formed, and the manufacturing cost is high; meanwhile, the metal thimble is short in length and does not contact the sliding iron core when the electromagnetic coil is not electrified, so that the metal thimble can freely slide back and forth between the operating rod and the sliding iron core, and can collide with the operating rod and the sliding iron core, and the metal thimble, the operating rod and the sliding iron core are damaged due to long-time collision. In addition, when the ejector pin is mounted or dismounted, the tiny metal ejector pin is very easy to lose.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a simple, the cost of manufacture of metal sliding block and plastics ejector pin is lower, and plastics ejector pin all the time with the metal sliding block butt and can not freely slide, avoid plastics ejector pin, trigger bar and metal sliding block to damage, the difficult electromagnetic unlocking unit who loses of plastics ejector pin and automatic flick electromagnetic door lock to solve above-mentioned problem.

An electromagnetic unlocking unit comprises an electromagnetic unlocking shell, a plastic ejector rod, a metal sliding block, an electromagnetic coil assembly and a third spring, wherein the plastic ejector rod, the metal sliding block, the electromagnetic coil assembly and the third spring are arranged in the electromagnetic unlocking shell; the third spout has been seted up to the one end of electromagnetism unblock casing, and metal sliding block is cylindrical, and metal sliding block is arranged in the third spout and keeps away from the open-ended one side of third spout, and the plastics ejector pin is arranged in the third spout and is close to the open-ended one side of third spout, and the plastics ejector pin is provided with the second bulge loop near protruding on metal sliding block's the lateral wall, and the outside of plastics ejector pin is located to the third spring housing, the first end and the second bulge loop butt of third spring, and the second end stretches out in the outside of first through-hole.

Furthermore, a through hole part is formed in one side, away from the metal slide block, of the second convex ring of the plastic ejector rod, and an abutting part is formed in one side, facing the metal slide block, of the second convex ring of the plastic ejector rod; the perforated part of the plastic ejector rod is in a round table shape, and the diameter of the perforated part is gradually reduced from one end close to the second convex ring to one end far away from the second convex ring.

Further, one end, facing the metal sliding block, of the abutting part is provided with an abutting ring, and the diameter of the abutting ring is the same as that of the metal sliding block.

Furthermore, a second terminal opening is formed in the other end of the electromagnetic unlocking shell, a second connecting terminal is arranged in the second terminal opening, and the electromagnetic coil assembly comprises an electromagnetic coil, a fixed connecting terminal connected with the electromagnetic coil and an elastic conducting portion connected between the second connecting terminal and the fixed connecting terminal.

An automatic spring-open electromagnetic door lock is provided with a base, a sliding unit and the electromagnetic unlocking unit, wherein the inner side of the base is provided with a second sliding groove; the side surface of the sector block is provided with a heart-shaped groove, and the middle part of the heart-shaped groove is convexly provided with a heart-shaped block; the arc-shaped side surface of the sector block is provided with a spring groove, the second spring is positioned in the spring groove, and the abutting block assembly penetrates through the second spring and is at least partially positioned in the spring groove; the electromagnetic unlocking unit is arranged on the outer side of the first through hole of the base; the second end of the third spring is abutted with the base around the first through hole, and the plastic ejector rod is always abutted with the metal sliding block; one end of the plastic ejector rod, which is far away from the metal sliding block, movably extends into the first through hole and is abutted against the trigger rod.

Further, the base outwards extends around first through-hole and is provided with the perforation mouth, and the perforation mouth stretches into at least partly to stretch into in the third spout, and the second end and the perforation mouth butt of third spring.

Compared with the prior art, the electromagnetic unlocking unit comprises an electromagnetic unlocking shell, a plastic ejector rod, a metal sliding block, an electromagnetic coil assembly and a third spring, wherein the plastic ejector rod, the metal sliding block, the electromagnetic coil assembly and the third spring are arranged in the electromagnetic unlocking shell; the third spout has been seted up to the one end of electromagnetism unblock casing, and metal sliding block is cylindrical, and metal sliding block is arranged in the third spout and keeps away from the open-ended one side of third spout, and the plastics ejector pin is arranged in the third spout and is close to the open-ended one side of third spout, and the plastics ejector pin is provided with the second bulge loop near protruding on metal sliding block's the lateral wall, and the outside of plastics ejector pin is located to the third spring housing, the first end and the second bulge loop butt of third spring, and the second end stretches out in the outside of first through-hole. Because the metal sliding block does not need special design, if the positioning column is used for positioning the spring, the plasticity of the plastic ejector rod is strong, the manufacturing cost is low, the manufacturing mode of the metal sliding block and the plastic ejector rod is simple, the manufacturing cost is low, the plastic ejector rod is always abutted against the metal sliding block and cannot freely slide, the plastic ejector rod, the trigger rod and the metal sliding block are prevented from being damaged, and the plastic ejector rod is not easy to lose. 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 an elastic support, in this embodiment, the elastic support is 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.

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.

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 plastic ejector rod 62 disposed in the electromagnetic unlocking housing 61, a metal slider 63, an electromagnetic coil assembly 64, and a third spring 65.

The electromagnetic unlocking shell 61 is provided with a third sliding groove 611 at one end facing the base 10, the metal sliding block 63 is cylindrical, the metal sliding block 63 is located on one side of the third sliding groove 611 far away from the base 10, the plastic ejector rod 62 is located on one side of the third sliding groove 611 close to the base 10, a second convex ring 621 protrudes from the outer side wall of the plastic ejector rod 62 close to the metal sliding block 63, the third spring 65 is sleeved on the outer side of the plastic ejector rod 62, and the perforation nozzle 12 at least partially extends into the third sliding groove 611.

The first end of the third spring 65 abuts against the second convex ring 621, the second end extends out of the first through hole, and after the electromagnetic unlocking unit 60 is connected with the base 10, the third spring 65 is compressed and the second end abuts against the punching nozzle 12. The plastic plunger 62 movably extends into the first through hole of the piercing nozzle 12 and abuts against the second rod portion 552.

The side of the plastic post rod 62, which is located on the second convex ring 621 and away from the metal slide block 63, is a through hole portion, and the side of the plastic post rod 62, which is located on the second convex ring 621 and faces the metal slide block 63, is an abutting portion.

In the present embodiment, the piercing portion of the plastic jack 62 is in the shape of a circular truncated cone, and the diameter of the piercing portion gradually decreases from the end close to the second convex ring 621 to the end away from the second convex ring 621.

The end of the abutment facing the metal slider 63 has an abutment ring having the same diameter as the metal slider 63.

Under the action of the third spring 65, the abutting ring of the plastic ejector rod 62 is always abutted against the metal slide block 63. Therefore, even if the electromagnetic coil assembly 64 is not energized, the plastic plunger 62 does not freely slide in the third sliding groove 611 to collide with the metal slider 63 or the trigger lever 55.

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 groove 611, 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 plastic ejector rod 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 groove 5111, and the fan-shaped block 52 can rotate in the fan-shaped groove 511, so that the main slider 51 can slide, and is in an unlocked state.

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.

The existing electromagnetic assembly is connected with a connecting cable, and the tail end of the connecting cable is provided with two special pin connectors which are inserted with pin connectors on an external power supply circuit board. The disadvantages of this connection are: the lengthy cable may be entangled or interfered with other components in the washing machine, the pin connectors may be connected with low reliability, and the other components may be operated to pull the two pin connectors out of the pin connectors, thereby undesirably powering down the electromagnetic assembly.

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 in a plug structure to be easily fitted to an external socket. Therefore, the use of a long cable is avoided, the cable is prevented from interfering with other components, and the connection mode of the electromagnetic unlocking unit 60 and the power supply is simpler, more universal and more reliable, and has lower cost.

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 electromagnetic unlocking unit 60 of the utility model comprises an electromagnetic unlocking shell 61, a plastic ejector rod 62, a metal slider 63, an electromagnetic coil assembly 64 and a third spring 65 which are arranged in the electromagnetic unlocking shell 60; the third sliding groove 611 is formed in one end of the electromagnetic unlocking housing 61, the metal sliding block 63 is cylindrical, the metal sliding block 63 is located on one side, away from the opening of the third sliding groove 611, the plastic ejector rod 62 is located on one side, close to the opening of the third sliding groove 611, the second convex ring 621 protrudes from the outer side wall, close to the metal sliding block 63, of the plastic ejector rod 62, the third spring 65 is sleeved on the outer side of the plastic ejector rod 62, the first end of the third spring 65 abuts against the second convex ring 621, and the second end of the third spring extends out of the first through hole. Because metal sliding block 63 need not special design, like the reference column that is used for going on the spring location, plastics ejector pin 62's plasticity is strong, and the cost of manufacture is low, and like this metal sliding block 63 and plastics ejector pin 62's preparation method is simple, the cost of manufacture is lower, and plastics ejector pin 62 is the butt with metal sliding block 63 all the time and can not freely slide, avoids plastics ejector pin 62, triggering lever 55 and metal sliding block 63 to damage, and plastics ejector pin 62 also is difficult for losing. 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 (6)

1. An electromagnetic unlocking unit, characterized in that: the electromagnetic unlocking unit comprises an electromagnetic unlocking shell, a plastic ejector rod, a metal sliding block, an electromagnetic coil assembly and a third spring, wherein the plastic ejector rod, the metal sliding block, the electromagnetic coil assembly and the third spring are arranged in the electromagnetic unlocking shell; the third spout has been seted up to the one end of electromagnetism unblock casing, and metal sliding block is cylindrical, and metal sliding block is arranged in the third spout and keeps away from the open-ended one side of third spout, and the plastics ejector pin is arranged in the third spout and is close to the open-ended one side of third spout, and the plastics ejector pin is provided with the second bulge loop near protruding on metal sliding block's the lateral wall, and the outside of plastics ejector pin is located to the third spring housing, the first end and the second bulge loop butt of third spring, and the second end stretches out in the outside of first through-hole.

2. The electromagnetic unlocking unit according to claim 1, wherein: the side of the plastic ejector rod, which is positioned on the second convex ring and away from the metal slide block, is a perforated part, and the side of the plastic ejector rod, which is positioned on the second convex ring and towards the metal slide block, is an abutting part; the perforated part of the plastic ejector rod is in a round table shape, and the diameter of the perforated part is gradually reduced from one end close to the second convex ring to one end far away from the second convex ring.

3. The electromagnetic unlocking unit according to claim 2, wherein: one end of the abutting part facing the metal sliding block is provided with an abutting ring, and the diameter of the abutting ring is the same as that of the metal sliding block.

4. The electromagnetic unlocking unit according to claim 1, wherein: the electromagnetic unlocking device comprises an electromagnetic unlocking shell, a first terminal opening is formed in the other end of the electromagnetic unlocking shell, a first connecting terminal is arranged in the first terminal opening, and an electromagnetic coil assembly comprises an electromagnetic coil, a fixed connecting terminal connected with the electromagnetic coil and an elastic conducting portion connected between the first connecting terminal and the fixed connecting terminal.

5. The utility model provides an automatic spring open electromagnetism lock which characterized in that: the electromagnetic unlocking unit comprises a base, a sliding unit and the electromagnetic unlocking unit as claimed in any one of claims 1 to 4, wherein a second sliding groove is formed in the inner side of the base, the sliding unit comprises a main sliding block, a sector block, an abutting block assembly, a second spring, a trigger rod and an elastic supporting piece, the elastic supporting piece is positioned between the main sliding block and the base, a sector groove is formed in one side of the main sliding block, the sector block is rotatably arranged in the sector groove, a step groove is formed in one side of the sector groove, and the trigger rod is at least partially positioned in the step groove or the sector groove; the side surface of the sector block is provided with a heart-shaped groove, and the middle part of the heart-shaped groove is convexly provided with a heart-shaped block; the arc-shaped side surface of the sector block is provided with a spring groove, the second spring is positioned in the spring groove, and the abutting block assembly penetrates through the second spring and is at least partially positioned in the spring groove; the electromagnetic unlocking unit is arranged on the outer side of the first through hole of the base; the second end of the third spring is abutted with the base around the first through hole, and the plastic ejector rod is always abutted with the metal sliding block; one end of the plastic ejector rod, which is far away from the metal sliding block, movably extends into the first through hole and is abutted against the trigger rod.

6. The automatic pop-up electromagnetic door lock of claim 5, wherein: the base outwards extends around first through-hole and is provided with the perforation mouth, and the perforation mouth stretches into at least partially and stretches into the third spout, and the second end and the perforation mouth butt of third spring.

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