Door lock device

Abstract

Disclosed is a door lock device. The door lock device of the disclosure can include a main body, a solenoid disposed inside the main body and including a bobbin having a coil wound therearound and a plunger which is elongated such that a portion thereof is exposed to the outside and slides in the inside of the bobbin by being magnetized by the coil, a first slider movably disposed in the sliding direction of the plunger and into which the portion of the plunger exposed to the outside of the solenoid has been inserted, and a first elastic member having one end supported by the plunger and the other end supported by the first slider.

Description

Technical Field

[0001] This disclosure relates to a door lock device. Background Technology

[0002] Door locking devices are designed to improve the security and methods of locking or unlocking doors using push-button keys, card keys, and fingerprint recognition using solenoids, unlock keys, or other access authorization devices. Recently, a great deal of research has been conducted on such door locking devices.

[0003] A door lock device is a mechanism installed in a machine that is designed not only to open and close the machine's door, but also to ensure the operator's safety by keeping the machine's door locked while a hazardous source is operating on it and only allowing the door to be opened when the operation of that hazardous source ceases.

[0004] Additionally, when it is necessary to forcibly unlock the door lock due to a power failure or emergency, the release key can be used to manually unlock the door lock. Summary of the Invention

[0005] Technical issues

[0006] One purpose of this disclosure is to address the aforementioned problems and others.

[0007] Another object of this disclosure is to provide a door lock device that can be unlocked with less force by stretching a spring without directly separating the plunger and the core of the solenoid from each other.

[0008] Another object of this disclosure is to provide a door lock device that can be unlocked by transmitting a force in the opposite direction to the magnetic force acting between the plunger and the core.

[0009] Technical solution

[0010] According to one aspect of the subject matter described in this application, a door lock device includes: a body; a solenoid including a spool and a plunger, a coil wound on the spool, and the plunger being elongated to have a portion exposed to the outside of the solenoid and configured to be magnetized by the coil for sliding within the spool, the solenoid being disposed in the body; a first slider, the portion of the plunger exposed to the outside of the solenoid being inserted into the first slider, the first slider being configured to move in a sliding direction of the plunger; and a first elastic member having a first end supported by the plunger and a second end supported by the first slider.

[0011] Beneficial effects

[0012] According to at least one embodiment of the present disclosure, the force required to unlock the door lock device can be reduced.

[0013] According to at least one embodiment of the present disclosure, deformation or damage to the components of the door lock device can be minimized.

[0014] Further applicability of this disclosure will become apparent from the following detailed description. However, it should be understood that various changes and modifications within the spirit and scope of this disclosure will be readily apparent to those skilled in the art, and therefore the detailed description and specific embodiments (e.g., preferred embodiments) of this disclosure are given by way of example only. Attached Figure Description

[0015] Figures 1 to 12 This is a diagram illustrating an example of a door lock device according to an embodiment of the present disclosure. Detailed Implementation

[0016] The following description will now be given in detail with reference to the accompanying drawings and exemplary embodiments disclosed herein. For the sake of brevity with reference to the drawings, identical or equivalent parts may be designated by the same reference numerals and their descriptions will not be repeated.

[0017] In the following description, suffixes such as “module” and “unit” may be used to refer to elements or components. Such suffixes are used herein solely for ease of description and are not intended to assign any particular meaning or function.

[0018] In this disclosure, for the sake of brevity, content well known to those skilled in the art has generally been omitted. The accompanying drawings are provided to aid in understanding the technical concept of this disclosure, and it should be understood that the concept of this disclosure is not limited to the drawings. The concept of this disclosure should be interpreted as extending to any modifications, equivalents, and substitutions other than those shown in the drawings.

[0019] It should be understood that although the terms “first,” “second,” etc., may be used in this document to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0020] It should be understood that when a component is referred to as "connected to" or "attached to" another component, it can be directly connected to or attached to the other component, or there can be intermediate components. Conversely, when a component is referred to as "directly connected to" or "directly attached to" another component, there are no intermediate components.

[0021] As used herein, unless the context clearly indicates otherwise, singular expressions are intended to include plural expressions.

[0022] refer to Figure 1 and Figure 2The door lock device 1 may include a main body 10, a head 20, fastening members 13 and 27, a solenoid 40, a first terminal assembly 61, a second terminal assembly 62, and a release member 70.

[0023] The body 10 may include a first portion 11, a second portion 12 coupled to the first portion 11, a fastening member 13 for fastening the first portion 11 to the second portion 12, and a base 14 disposed on the exterior of the body 10. The first portion 11 may define a front surface of the body 10. The second portion 12 may define a rear surface and a side surface of the body 10. The first portion 11 and the second portion 12 may include a plurality of holes into which the fastening member 13 is inserted. The second portion 12 may be coupled to the first portion 11 to define the external shape of the body 10. The second portion 12 may include a recessed portion 15 into which a release member 70 is mounted. The base 14 may be disposed at the second portion 12.

[0024] The recessed portion 15 can be formed in the second portion 12 by being recessed into it. The release member 70 can pass through the recessed portion 15 to be inserted into the body 10. The recessed portion 15 can accommodate at least a portion of the release member 70. The recessed portion 15 can accommodate the entire release member 70 such that the release member 70 is not exposed to the outside of the recessed portion 15.

[0025] The head 20 can be mounted on the base 14. The head 20 can be mounted on the exterior of the body 10. The fastening member 27 can connect the head 20 to the base 14. The head 20 can be detachable from the body 10. Alternatively, the head 20 can be integrally formed with the body 10. The interior of the head 20 can be connected to the interior of the body 10. The outer surfaces of the head 20 and the body 10 can form a continuous surface. The head 20 can have an end that connects to the second terminal assembly 62. The head 20 can be used as a locking device, key 80 (see...). Figure 3 It is inserted and removed through the locking device.

[0026] The solenoid 40 can be supported internally by the body 10. The solenoid 40 can be installed inside the body 10. The solenoid 40 can be connected to the first terminal assembly 61. The solenoid 40 can be connected to a battery (not shown) within the body 10 or to an external power source.

[0027] The first terminal assembly 61 and the second terminal assembly 62 can be installed inside the main body 10. The first terminal assembly 61 can be connected to the head 20. The second terminal assembly 62 can be connected to the solenoid 40. The first terminal assembly 61 can detect whether the key 80 is inserted into the head 20. The second terminal assembly 62 can detect whether the solenoid 40 is in operation.

[0028] Release components 70 and 70' can be installed on the main body 10. Release components 70 and 70' can be installed on the side, front, and / or rear surfaces of the main body 10. Release components 70 and 70' can be positioned within the main body 10. A user can insert additional structures to operate the release components 70 and 70' installed in the main body 10.

[0029] When the solenoid 40 malfunctions or the door lock device urgently needs to be unlocked, the release parts 70, 70', which are devices for manually unlocking the door lock device 1, can be used to eject the key 80 from the head 20.

[0030] Meanwhile, the release members 70, 70' can be configured such that a portion of them is inserted into the body 10, while the remainder is exposed outside the body 10. The user can operate the release members 70, 70' while keeping the exposed portion of the release members 70, 70' exposed. Alternatively, the release members 70, 70' can be operated in a fully automatic manner without requiring user force, and can be operated by inserting additional structures into the body 10 without exposing the body 10 to the outside.

[0031] refer to Figure 3 The head 20 of the door lock device 1 may include a cap 21, a bottom 22, a stop 23, a retainer 24, a shaft 25, a spring 26, a cam 31, and a rod 32.

[0032] A key 80 can be inserted into a door lock device 1. The key 80 may include an insertion portion 81 that inserts into a head 20. The insertion portion 81 may include a hole 811 formed therein and an end 812 protruding from its distal portion. The key 80 can be inserted into the head 20 through a slot 211.

[0033] The cap 21 may include slots 211 and 212 through which the interior and exterior of the head 20 communicate with each other. Multiple slots 211 and 212 may be provided. The opening directions of the multiple slots 211 and 212 may form a predetermined angle. For example, the opening directions of the multiple slots 211 and 212 may be perpendicular to each other. Due to the multiple slots 211 and 212, the key 80 can be inserted into and removed from the head 20.

[0034] The widths of slots 211 and 212 may decrease toward the interior of head 20. Cap 21 may include multiple holes into which fastening member 27 is inserted. Cap 21 may be attached to bottom 22. Cap 21 may cover bottom 22.

[0035] The bottom 22 may include a wall 221. The wall 221 may include a hole 222 through which the shaft 25 passes. Multiple walls 221 may be provided. The wall 221 may support the cam 31. The wall 221 may prevent the cam 31 from moving along the shaft 25. Multiple walls 221 may be positioned symmetrically relative to the cam 31. The wall 221 may be mounted on the bottom 22 or may be integrally formed with the bottom 22. A wall 221 integrally formed with the bottom 22 may protrude from the bottom 22 toward the interior of the head 20. The wall 221 may have a flat surface.

[0036] The stop 23 may include a protrusion 231 and an inclined surface 233. The stop 23 may be disposed inside the head 20. The stop 23 may be supported by the bottom 22. The stop 23 may include a hole 232 through which the shaft 25 passes. Multiple stops 23 may be provided. Multiple stops 23 may be disposed in positions symmetrical with respect to the cam 31. A wall 221 may be positioned between the stop 23 and the cam 31. The stop 23 may be fitted to the spring 26. The stop 23 may prevent rotation of the cam 31.

[0037] The protrusion 231 can protrude from the end of the stop 23. The protrusion 231 can extend in the longitudinal direction of the shaft 25. The protrusion 231 can be inserted into the groove 312a of the cam 31. When the protrusion 231 is inserted into the groove 312a, the rotation of the cam 31 can be stopped.

[0038] An inclined surface 233 may be formed on the portion of the stop 23 adjacent to slots 211 and 212. The inclined surface 233 may face slots 211 and 212. The inclined surface 233 may be inclined in a direction intersecting the insertion direction a of the key 80. The key 80 inserted through slot 211 may slide on the inclined surface 233. The inclined surface 233 may contact the end 812 of the inserted key 80. The inclined surface 233 may intersect the insertion direction a of the key 80. The inclined surface 233 may be formed as flat. The end 812 may include a surface corresponding to the inclined surface 233.

[0039] The retainer 24 can be disposed on the lower surface of the base 22. The retainer 24 can support the rod 32. The retainer 24 can be mounted to the base 14. The retainer 24 can support the head 20. The rod 32 can be disposed inside the retainer 24. The retainer 24 can have a generally cylindrical shape.

[0040] Shaft 25 can be disposed in head 20. Shaft 25 can provide a rotation axis for cam 31. Shaft 25 can pass through cam 31. Shaft 25 can be mounted on bottom 22. Stop 23, wall 221 and cam 31 can be arranged on shaft 25. Shaft 25 can pass through spring 26.

[0041] A first end of spring 26 can be fixed to shaft 25, and a second end of spring 26 can be fixed to cam 31. Spring 26 can connect cam 31 and shaft 25. Shaft 25 can be disposed inside spring 26. Spring 26 can provide a restoring force to cam 31 rotating on shaft 25. Spring 26 can provide a restoring force to stop 23 moving in the longitudinal direction of shaft 25. Multiple springs 26 can be provided. Stop 23 can be inserted into each of the multiple springs 26.

[0042] Meanwhile, spring 26 can be a conical spring, with its diameter gradually decreasing towards the end of shaft 25. Therefore, as the distance from the rotation center of cam 31 to the point where the second end of spring 26 is fixed increases, a large torque can be transmitted to cam 31.

[0043] The cam 31 is rotatable on the shaft 25. The cam 31 may include a first tooth 311 and a second tooth 312 projecting from its peripheral surface. The cam 31 may include a groove 312a formed at a location spaced apart from the shaft 25. The groove 312a of the cam 31 may be formed in the second tooth 312. The protrusion of the stop 23 may be received in the groove 312a. The cam 31 may be inserted between a plurality of walls 221. The peripheral surface of the cam 31 may be supported by a rod 32.

[0044] Reference Figures 3 to 5 Describe the process of inserting the key 80 into the head 20.

[0045] The key 80 can be inserted into the head 20 through the slot 211 of the cap 21.

[0046] The insertion end 812 of the insertion portion 81, which is inserted into the head 20, can contact the inclined surface 233, causing the stop 23 to be pushed in the longitudinal direction of the shaft 25. As the stop 23 moves away from the cam 31, the spring 26 can be compressed, allowing the protrusion 231 of the stop 23 to be withdrawn from the groove 312a of the second tooth 312. The insertion portion 81 of the key 80 can push the second tooth 312 of the cam 31. When the protrusion 231 of the stop 23 is withdrawn, the cam 31 can rotate.

[0047] When the key 80 is inserted until the hole 811 of the insertion portion 81 is positioned within the head 20, the first tooth 311 of the rotating cam 31 can engage in the hole 811 of the insertion portion 81. The first tooth 311 can prevent the inserted key 80 from being withdrawn. Once the key 80 is inserted, the stop 23 can remain in a state where it can move in the longitudinal direction of the shaft 25.

[0048] refer to Figure 6 The door lock device 1 may include second operating units 31 and 32 and an elastic body 241. The second operating unit includes a cam 31 and a lever 32.

[0049] The second operating units 31 and 32 can be disposed in the head 20. The second operating units 31 and 32 can be operated by the key 80. The second operating units 31 and 32 can be operated when the key 80 is inserted into or removed from the head 20.

[0050] The cam 31 may include a rotation center C1, a first tooth 311, a second tooth 312, a third tooth 313, and a nose 314. The cam 31 may be disposed in the head 20. The cam 31 may have a rotation center C1 provided by the shaft 25. The cam 31 may have a predetermined radius l2. The first tooth 311, the second tooth 312, the third tooth 313, and the nose 314 may protrude from the peripheral surface of the cam 31.

[0051] The first tooth 311 can be disposed between the groove 211 and the shaft 25. The first tooth 311 can be positioned on the outer periphery between the second tooth 312 and the nose 314 relative to the rotation center C1 of the cam 31. When the key 80 is inserted into the head 20, the first tooth 311 can engage in the hole 811 of the inserted key 80.

[0052] The first tooth 311 may not be in the opening direction of the slot 211 (i.e., in the insertion direction a of the key 80) (see Figure 3 The first tooth 311 overlaps with the groove 211. In other words, the first tooth 311 can be spaced apart from the groove 211 in a direction that intersects with the opening direction of the groove 211. Therefore, when the key 80 is inserted through the groove 211, no interference can occur between the key 80 and the first tooth 311.

[0053] The second tooth 312 can be aligned with the slot 211 in the opening direction of the slot 211. The second tooth 312 can be positioned on the outer periphery between the first tooth 311 and the third tooth 313 relative to the rotation center C1 of the cam 31. When the key 80 is inserted through the slot 211, the second tooth 312 can contact the key 80.

[0054] Meanwhile, the second tooth 312 may not overlap with the groove 212 in the opening direction. In other words, the second tooth 312 may be spaced apart from the groove 212 in a direction intersecting with the opening direction of the groove 212. Since the second tooth 312 is not located on the insertion path of the key 80, no interference may occur between the key 80 and the second tooth 312 when the key 80 is inserted into the head 20.

[0055] The third tooth 313 can be aligned with the slot 212 in the opening direction of the slot 212. The third tooth 313 can be positioned on the outer periphery between the second tooth 312 and the nose 314 relative to the rotation center C1 of the cam 31. When the key 80 is inserted into the head 20, the third tooth 313 can contact the transverse surface of the rod 32. The third tooth 313 allows the rod 32 to remain upright.

[0056] The protrusion 314 can be positioned peripherally between the first tooth 311 and the third tooth 313 relative to the rotation center C1 of the cam 31. The nose 314 can contact the rod 32. The nose 314 can have a flat distal end. The distal end of the nose 314 can be spaced apart from the rotation center C1 of the cam 31 by a predetermined distance l1.

[0057] The distance l1 from the rotation center C1 of cam 31 to the nose 314 can be greater than the predetermined radius l2 of cam 31. When cam 31 rotates, rod 32 can slide along the nose 314 and the outer surface of cam 31. Therefore, due to the difference between the distance l1 from the rotation center C1 of cam 31 to the nose 314 and the radius l2 of cam 31, rod 32 can move linearly in the longitudinal direction when cam 31 rotates.

[0058] The lever 32 may include a first portion 321, a second portion 322, and a third portion 323. The lateral surface of the lever 32 may be supported by a retainer 24. The lever 32 may be elongated and rod-shaped. The lever 32 may have an end supported by a cam 31. The lateral surface of the lever 32 may be supported by a head 20.

[0059] The first portion 321 can pass through the retainer 24. The lateral surface of the first portion 321 can be supported by the retainer 24. The first portion 321 can have a cylindrical shape with a predetermined diameter D1. The first portion 321 can contact the cam 31 or the nose 314. The first portion 321 can have an annular groove 321a on its peripheral surface. The elastomer 241 can be inserted into the annular groove 321a of the first portion 321.

[0060] The second part 322 can connect the first part 321 and the third part 323. The second part 322 can have the shape of a cylinder with a predetermined diameter D2. Alternatively, the second part 322 can have the shape of a column with a polygonal cross-section. The first end of the second part 322 can be connected to the first part 321, and the second end of the second part 322 can be connected to the third part 323.

[0061] Meanwhile, the predetermined diameter D2 of the second portion 322 can be larger than the predetermined diameter D1 of the first portion 321. Due to the diameter difference between the first portion 321 and the second portion 322, a first step can be formed between the first portion 321 and the second portion 322. Therefore, even when the elastomer 241 separates from the annular groove 321a and slides toward the second portion 322, the first step can prevent excessive sliding of the elastomer 241.

[0062] The third part 323 can be connected to the second part 322. The third part 323 can have the shape of a cylinder with a predetermined diameter D3. The predetermined diameter D3 of the third part 323 can be smaller than the predetermined diameter D2 of the second part 322. Due to the diameter difference between the third part 323 and the second part 322, a second step can be formed between the third part 323 and the second part 322. Therefore, even if the rod 32 moves excessively in its longitudinal direction, the second step can prevent the rod 32 from moving excessively.

[0063] An elastomer 241 may be disposed at the retainer 24. The elastomer 241 may be inserted into the annular groove 321a to surround the transverse surface of the first portion 321. The elastomer 241 may provide a restoring force to the first portion 321. When the first portion 321 moves in the longitudinal direction of the rod 32, the elastomer 241 may provide a restoring force in the opposite direction to the direction of movement of the first portion 321.

[0064] Simultaneously, when the key 80 is inserted through the slot 212, the key 80 can push the third tooth 313, and the second tooth 312 can engage in the hole 811 of the inserted key 80. The user can change the insertion direction of the key 80 as needed, and the compatibility of the door lock device 1 can be enhanced.

[0065] Simultaneously, when the user removes the key 80 from the head 20, the cam 31 can rotate in the opposite direction to when the key 80 was inserted, the lever 32 can move in the longitudinal direction, and the first part 321 of the lever 32 can slide along the outer surface of the cam 31, thereby contacting the nose 314. That is, in order to allow the key 80 to be withdrawn from the head 20, the lever 32 should be able to move in the longitudinal direction. Therefore, when the movement of the lever 32 is prohibited, the user may not be able to remove the key 80 from the head 20. This allows the door lock device 1 to achieve a locking function that maintains the operating state of the solenoid 40.

[0066] Reference Figure 7a , Figure 7b , Figure 8a and Figure 8bThe solenoid 40 of the door lock device 1 is described under normal operation. When the solenoid 40 is operating normally, the key 80 can be pulled out from the head 20 when no power is applied to the solenoid 40.

[0067] Figure 7a It is shown that no power is applied to solenoid 40, and Figure 7b The diagram shows that electricity is applied to the solenoid 40. Figure 8a yes Figure 7a The cross-sectional view, and Figure 8b yes Figure 8a Cross-sectional view.

[0068] The door lock device 1 may include second operating units 31 and 32, first operating units 33, 34 and 35, solenoid 40, first elastic member 51, second elastic member 52, first terminal assembly 61 and second terminal assembly 62.

[0069] The first operating units 33, 34, and 35 may include a second slider 33, an arm 34, and a first slider 35. The first operating units 33, 34, and 35 may be disposed within the main body 10. The first operating units 33, 34, and 35 may be interlocked with the second operating units 31 and 32. The first operating units 33, 34, and 35 may be interlocked with the solenoid 40. When power is applied to the solenoid 40, the first operating units 33, 34, and 35 can operate. When power is applied to the solenoid 40, the second operating units 31 and 32 may engage with the first operating units 33, 34, and 35.

[0070] The second slider 33 can support the rod 32 of the second operating units 31 and 32. The second slider 33 can extend in a direction intersecting the longitudinal direction of the rod 32. For example, the second slider 33 can extend in a direction perpendicular to the longitudinal direction of the rod 32. When power is applied to the solenoid 40 at the same time as the key 80 is inserted (see...), Figure 7b and Figure 8b The second slider 33 can support the transverse surface of the third part 323 and prevent the longitudinal movement of the second part 322.

[0071] The second slider 33 may have a notch 332 therein (see...) Figure 11 The third portion 323 of the lever 32 can be accommodated in the recess 332 of the second slider 33. When no power is applied to the solenoid 40 while the key 80 is inserted (see...). Figure 7a and Figure 8a The third part 323 can be accommodated in the recess 332 of the second slider 33 and can be spaced apart from the second slider 33.

[0072] When the solenoid 40 is operating normally, the user can remove the key 80 from the head 20 regardless of the actuation of the release element 70 (see...). Figure 7a and Figure 8a ).

[0073] Arm 34 may be elongated. Arm 34 may be connected to the second slider 33. Arm 34 may have an end supported by the release member 70. Arm 34 may serve as a link connecting the second slider 33 and the first slider 35. Arm 34 may have a rotation center C2 therein (see...). Figure 9a When arm 34 rotates around the rotation center C2, the second slider 33 and the first slider 35 connected to arm 34 can move together.

[0074] The first slider 35 can be connected to the arm 34. The first slider 35 can be interlocked with the plunger 42. The first slider 35 can move in a direction parallel to the sliding direction of the plunger 42. A portion of the plunger 42 can be inserted into the first slider 35. The first slider 35 can be interlocked with the first terminal assembly 61. The first slider 35 can move linearly in the longitudinal direction of the plunger 42.

[0075] Meanwhile, the first slider 35 can move in the direction in which the plunger 42 slides. That is, since the movement directions of the plunger 42 and the first slider 35 are parallel, the first slider 35 is allowed to fully transmit the force to the plunger 42.

[0076] The solenoid 40 may include a core 41, a plunger 42, a bottom 43, a cap 44, and a spool 45. The solenoid 40 may be connected to an external power source or a battery (not shown) in the door lock device 1.

[0077] The core 41 may be disposed inside the solenoid 40. The core 41 may include a first portion 411 and a second portion 412, the second portion being configured to slide within the first portion 411. The first portion 411 may be fixed inside the solenoid 40. The second portion 412 may be coupled to the plunger 42 for integral movement with the plunger 42. The first portion 411 may include a metallic material. Magnetic force may act between the magnetized plunger 42 and the first portion 411.

[0078] The plunger 42 may be made of a magnetic material. The plunger 42 may be elongated. A portion of the plunger 42 may be positioned outside the solenoid 40. This portion of the plunger 42 may be exposed outside the solenoid 40. The plunger 42 may be coupled to a second portion 412 of the core 41. The plunger 42 may be magnetized by a coil in the spool 45. The magnetized plunger 42 may slide inside the spool 45. When electricity is applied to the solenoid 40, the plunger 42 can be magnetized, and the magnetized plunger 42 can attract a first portion 411 of the core 41.

[0079] Therefore, when power is applied to the solenoid 40, the plunger 42 can abut the first portion 411, allowing the second portion 412 of the core 41, which is connected to the plunger 42, to protrude further outside the solenoid 40. Conversely, when power is not applied to the solenoid 40, the plunger 42 can be spaced apart from the first portion 411 since there is no attraction between the plunger 42 and the first portion 411.

[0080] The bottom 43 can support the spool 45. The bottom 43 can define the lower surface of the solenoid 40. The bottom 43 can protect the interior of the solenoid 40. The plunger 42 can slide inside the bottom 43.

[0081] The cover 44 defines the external shape of the solenoid 40. The cover 44 can be disposed outside the spool 45. The cover 44 can be attached to the bottom 43. The cover 44 can protect the spool 45. The core 41 can be exposed to the outside of the solenoid 40 through a hole formed in the cover 44.

[0082] A coil can be wound inside a spool 45. The spool 45 can be housed inside a solenoid 40. The coil inside the spool 45 can be electrically connected to an external power source or battery. When power is applied to the solenoid 40, the multiple coils inside the spool 45 can generate a magnetic field. A plunger 42 can slide inside the spool 45.

[0083] A first elastic member 51 may be disposed in a first slider 35. The first elastic member 51 may have a first end 511 supported by a plunger 42 and a second end 512 supported by the first slider 35. The first elastic member 51 may be compressed when the plunger 42 and the first slider 35 move in a direction away from each other.

[0084] The second elastic member 52 may have a first end 521 supported by the bottom 43 of the solenoid 40 and a second end 522 supported by the first slider 35. When power is applied to the solenoid 40, the first slider 35 may move toward the solenoid 40, causing the second elastic member 52 to be compressed. When the power supply to the solenoid 40 is cut off, the second elastic member 52 may provide a spring force to the first slider 35 in a direction that pushes the first slider 35 away from the solenoid 40.

[0085] The first terminal assembly 61 may include: a piston 611 coupled to a first slider 35; a spring 612 having a first end supported by the piston 611 and a second end supported by a housing 614 to provide a restoring force to the piston 611; a plurality of terminals 613; and a housing 614 in which the piston 611, spring 612, and plurality of terminals 613 are housed. The first terminal assembly 61 may be interlocked with a solenoid 40 to detect whether the solenoid 40 is in operation. The plurality of terminals 613 may be connected to a separate first display device, such as an LED, and the door lock device 1 may notify the user whether the solenoid 40 is in operation via the first display device.

[0086] The second terminal assembly 62 may include: a piston 621 interlocked with rod 32; a spring 622 having a first end supported by piston 621 and a second end supported by housing 624 for providing a restoring force to piston 611; a plurality of terminals 623; and a housing 624 in which piston 621, spring 622 and the plurality of terminals 623 are housed. The second terminal assembly 62 may interlock with second operating units 31 and 32 to detect whether key 80 is inserted into head 20. The plurality of terminals 623 may be connected to a separate second display device, such as an LED, and the door lock device 1 may notify the user of key 80 insertion / removal via the second display device.

[0087] Reference Figure 9a , Figure 9b and Figure 10 This describes the process of removing the key 80 by using the release element 70 when the solenoid 40 malfunctions or in an emergency.

[0088] The arm 34 may include a first part 341, a second part 342, a third part 343, a hole 344, a groove 345, and a cylinder 346.

[0089] The first portion 341 of the arm 34 can connect the second slider 33 and the first slider 35. The first portion 341 may have a groove 345 into which the cylinder 331 of the second slider 33 is inserted. The first portion 341 may be provided with a cylinder 346 inserted into the groove 351 of the first slider 35. The second slider 33 and the first slider 35, which move in different directions, can be connected through the first portion 341. The first portion 341 may be spaced apart from the rotation center C2 of the arm 34.

[0090] The groove 345 of the first portion 341 of the arm 34 can extend in a direction intersecting the longitudinal direction of the second slider 33. The cylinder 331 of the second slider 33 can slide inside the groove 345.

[0091] The second portion 342 of the arm 34 may have a hole 344 providing a rotation center C2 for the arm 34. The second portion 342 may connect the first portion 341 and the third portion 343. The second portion 342 may be coupled to the interior of the first terminal assembly 61 and / or the body 10. The direction from the rotation center C2 of the second portion 342 to the groove 345 of the first portion 341 and the distance from the rotation center C2 to the cylinder 346 of the first portion 341 may be different from each other.

[0092] The third portion 343 of arm 34 can be positioned adjacent to the distal end of release member 70. The third portion 343 can extend from the second portion 342. The third portion 343 can have an end supported by release member 70.

[0093] The first slider 35 may include a groove 351 on which the cylinder 346 of the arm 34 slides. The groove 351 may extend in a direction parallel to the longitudinal direction of the second slider 33. The groove 351 and the second slider 33 may be spaced apart from each other in a direction intersecting the longitudinal direction of either the groove 351 or the second slider 33.

[0094] Simultaneously, when drawing the imaginary line (i.e., the center line CL that passes through the rotation center C2 of the second part 342 and extends in the longitudinal direction parallel to the second slider 33), the distance H1 from the center line CL to the cylinder 331 of the second slider 33 can be greater than the distances H2 and H3 from the center line CL to the groove 351 of the first slider 35. When the arm 34 rotates, the distance from the center line CL to the groove 351 can decrease from H2 to H3. Therefore, the first slider 35 can move in a direction intersecting the movement direction of the second slider 33. That is, force in the appropriate direction can be transmitted to the first slider 35. Furthermore, during the transmission of force through the second operating units 31 and 32 and the first operating units 33, 34 and 35, deformation or damage between the connecting parts can be prevented.

[0095] The release element 70 may include a distal end 71, a washer 72, a knob 73, a stop 74, a fastening portion 75, and a rotation axis R. Figure 9a The release element 70 before operation is shown, and Figure 9b The release element 70 after the operation is shown.

[0096] The distal end 71 of the release member 70 can extend toward the interior of the body 10. The distal end 71 can be positioned adjacent to the interior of the body 10. The distal end 71 can support the third portion 343 of the arm 34. The distal end 71 of the release member 70 can be connected to the release member 70 (see...). Figure 10The axes of rotation R of the release member 70 are spaced apart. Therefore, when the release member 70 rotates, the distal end 71 of the release member 70 can contact the third part 343 of the arm 34, thereby pushing the third part 343. In other words, the distal end 71 can provide a torque to the arm 34.

[0097] The gasket 72 may be disposed on the outside of the release member 70. The gasket 72 may seal between the release member 70 and the body 10. The gasket 72 may be positioned between the distal end 71 and the knob 73. The gasket 72 may contact the body 10. The gasket 72 may prevent foreign objects from penetrating the body 10 from the outside.

[0098] The knob 73 may have a smooth outer surface. The user can operate the knob 73 via an additional structure. The knob 73 may be provided with a stop 74. When the user operates the knob 73 to rotate the release member 70, the stop 74 can limit the rotation angle of the release member 70. The knob 73 may be positioned facing the distal end 71 of the release member 70. The knob 73 may be connected to the distal end 71 of the release member 70.

[0099] The fastening portion 75 can be inserted into the main body 10. According to this embodiment, the release member 70 of the door lock device 1 may have a fastening portion 75, which is fastened to the interior of the main body 10 by a snap-fit ​​engagement.

[0100] The release element 70 may have a rotation axis R at its center. The release element 70 may rotate about the rotation axis R. The user may use a knob 73 to rotate the release element 70.

[0101] like Figure 7a As shown, when the power supply to the solenoid 40 is cut off, a portion of the second part 412 of the core 41 can move into the interior of the solenoid 40 because there is no attraction between the core 41 and the plunger 42. However, due to the residual magnetism of the plunger 42, when the core 41 and the plunger 42 do not separate from each other even after the power supply to the solenoid 40 has been cut off, the key 80 can remain in the head 20 without being removed because the first slider 35 does not separate from the solenoid 40.

[0102] In this configuration, the user can operate (rotate) the release member 70, allowing the driving force to be transmitted through the arm 34 to the first slider 35, thereby compressing the first elastic member 51 inserted between the first slider 35 and the plunger 42. Thus, the first slider 35 can be separated from the solenoid 40.

[0103] Since the force required to compress the first elastic member 51 via the first slider 35 is less than the force required to separate the first slider 35 and the plunger 42 from the core 41, the user can operate the release member 70 with less force. Furthermore, deformation or damage between the connecting parts can be prevented during force transmission.

[0104] refer to Figure 11 The second slider 33 may include a cylinder 331, a notch 332, a recessed portion 333, and a guide 334. The groove 351 of the first slider 35 may include a recessed portion 351a.

[0105] The cylinder 331 can protrude outward from the second slider 33.

[0106] A notch 332 can be formed in the region adjacent to the rod 32. The notch 332 can be provided with a recessed portion 333. The size of the recessed portion 333 can be smaller than the diameter D2 of the second portion 322. The size of the recessed portion 333 can be larger than the diameter D3 of the third portion 323. Therefore, the second sliding member 33 can prevent movement of the second portion 322. When electricity is applied to the solenoid 40, the recessed portion 333 can support the lateral surface of the third portion 323 of the rod 32.

[0107] A guide 334 may be formed on the recess 332. The guide 334 may protrude into the interior of the recess 332. The guide 334 may have an inclined surface to guide the rod 32 into the interior of the recess 332.

[0108] The recessed portion 351a of the first slider 35 can be recessed in a direction intersecting the longitudinal direction of the first slider 35. Specifically, when electricity is applied to the solenoid 40, the recessed portion 351a of the first slider 35 can be recessed in a direction opposite to the direction of movement of the first slider. That is, when the first slider 35 moves toward the solenoid 40 as electricity is applied, the cylinder 346 of the arm 34 can be placed into the recessed portion 351a of the first slider 35.

[0109] refer to Figure 12 The plunger 42 may include a first end 421, a second end 422, a receiving space 423, an annular groove 424, and a stop 425.

[0110] The first end 421 of the plunger 42 may be provided with a receiving space 423, in which the core 41 is received. The second end 422 of the plunger 42 may be inserted into the internal space 357 of the first slider 35. The second end 422 of the plunger 42 may define the distal end of the plunger 42. The second end 422 of the plunger 42 may be provided with an annular groove 424. The stop 425 may be inserted into the annular groove 424 of the plunger 42. The outer surface of the stop 425 may slide on the inner wall 356 of the first slider 35.

[0111] A stop 425 may be disposed in the first slider 35 for mounting on the plunger 42. The stop 425 may be a retaining ring. At least a portion of the interior of the stop 425 may be inserted into the annular groove 424. The stop 425 may support the first elastic member 51. The stop 425 may be supported by a stop 358 of the first slider 35. The stop 425 may prevent the first elastic member 51 from separating from the exterior of the first slider 35.

[0112] The first sliding member 35 may include a receiving space 352, stops 353, 355 and 358, and a flange 354.

[0113] The receiving space 352 of the first slider 35 can accommodate the piston 611 of the first terminal assembly 61. The stop 353 can prevent the piston 611 accommodated in the receiving space 352 from separating. The stop 353 can extend in a direction intersecting the direction of movement of the piston 611. For example, the stop 353 can extend in a direction perpendicular to the direction of movement of the piston 611.

[0114] The flange 354 of the first slider 35 can protrude from the outer surface of the first slider 35. The flange 354 can support the second elastic member 52. The flange 354 can allow the restoring force provided by the second elastic member 52 to be effectively transmitted to the first slider 35.

[0115] Stops 355 and 358 prevent the plunger 42, the first elastic member 51, and the stop 425, positioned within the first sliding member 35, from separating from the outside of the first sliding member 35. Stop 355 supports the second end 512 of the first elastic member 51. Stop 425 supports the first end 511 of the first elastic member 51. Stops 355 and 358 prevent the plunger 42, the first elastic member 51, and the stop 425 from separating in the direction of movement of the first sliding member 35. Stops 355 and 358 can protrude from the inner wall 356 of the first sliding member 35 into the interior of the first sliding member 35. Stops 355 and 358 and the stop 425 disposed on the plunger 42 can be arranged in the longitudinal direction (or direction of movement) of the plunger 42. Therefore, stops 355 and 358 prevent the plunger 42 and the stop 425 from separating from the outside of the first sliding member 35.

[0116] refer to Figures 1 to 12According to one aspect of this disclosure, a door lock device 1 is provided, comprising: a body 10; a solenoid 40 including a spool 45 and a plunger 42, a coil wound on the spool 45, the plunger 42 being elongated to have a portion exposed to the outside of the solenoid 40 and configured to be magnetized by the coil for sliding within the spool 45, the solenoid 40 being disposed in the body 10; a first slider 35 into which the portion of the plunger 42 exposed to the outside of the solenoid 40 is inserted, the first slider 35 being configured to move in a sliding direction of the plunger 42; and a first elastic member 51 having a first end 511 supported by the plunger 42 and a second end 512 supported by the first slider 35.

[0117] According to another aspect of this disclosure, the door lock device 1 may further include a second elastic member 52 having a first end 521 supported by a solenoid 40 and a second end 522 supported by a first slider 35 to provide elastic force to the first slider 35.

[0118] According to another aspect of this disclosure, the first elastic member 51 may be disposed between the plunger 42 and the first slider 35 to provide elastic force to the first slider 35.

[0119] According to another aspect of this disclosure, the plunger 42 may include: a distal end 422 disposed in the first slider 35; and a stop 425 disposed at the distal end 422 of the plunger 42 to slide on the inner wall 356 of the first slider 35. A first elastic member 51 may be disposed in the first slider 35 and may be supported by the stop 425.

[0120] According to another aspect of this disclosure, the first slider 35 may include stops 355 and 358, the stops protruding from the inner wall 356 and arranged with the stops 425 along the longitudinal direction of the plunger 42.

[0121] According to another aspect of this disclosure, the door lock device 1 may also include a release member 70, which is mounted at the body 10 such that the first sliding member 35 is spaced apart from the plunger 42.

[0122] According to another aspect of this disclosure, the door lock device 1 may also include an arm 34 having a first side connected to the first slider 35 and a second side supported by the release member 70.

[0123] According to another aspect of this disclosure, the release member 70 may include: a distal end 71 extending into the interior of the body 10 and configured adjacent to the arm 34; and a knob 73 connected to the distal end 71 and providing an axis of rotation. The distal end 71 may be spaced apart from the axis of rotation R.

[0124] According to another aspect of this disclosure, the door lock device 1 may further include: a head 20 mounted on a body 10 and having a groove 211 through which the interior and exterior of the head 20 communicate with each other; a cam 31 configured to rotate on a shaft 25 fixed inside the head 20, the cam 31 having a nose 314 projecting from a peripheral surface of the cam 31; a rod 32 passing through the head 20 and having an end contacting the peripheral surface of the cam 31, the rod 32 having a transverse surface supported by the head 20; and a second slider 33 connected to an arm 34, the second slider 33 being configured to move in a direction intersecting the longitudinal direction of the rod 32.

[0125] According to another aspect of this disclosure, when electricity is applied to the solenoid 40, the second slider 33 and the rod 32 can be arranged along the longitudinal direction of the rod 32.

[0126] According to another aspect of this disclosure, the lever 32 may include: a first portion 321 that contacts the cam 31; a second portion 322 connected to the first portion 321; and a third portion 323 connected to the second portion 322, the third portion 323 having a diameter D3 smaller than the diameter D2 of the second portion 322. The second slider 33 may include a recessed portion 333 recessed along the radial direction of the lever 32 in a region adjacent to the lever 32. The size of the recessed portion 333 may be smaller than the diameter D2 of the second portion 322 and larger than the diameter D3 of the third portion 323.

[0127] According to another aspect of this disclosure, the second slider 33 may include: a notch 332 recessed in a region adjacent to the rod 32 along the radial direction of the rod 32; and a guide 334 disposed on the notch 332 to guide the rod 32 into the notch 332.

[0128] According to another aspect of this disclosure, the cam 31 may include a plurality of teeth 311, 312, and 313 projecting from a peripheral surface of the cam 31. The plurality of teeth 311, 312, and 313 may include: a first tooth 311 spaced apart from the slot 211 in a direction intersecting the opening direction of the slot 211; and a second tooth 312 aligned with the slot 211 in the opening direction of the slot 211. When the key 80 is inserted through the slot 211, the key 80 and the first tooth 311 may come into contact with each other to rotate the cam 31, allowing the second tooth 312 to engage with the key 80.

[0129] According to another aspect of this disclosure, the head 20 may include: a spring 26 through which a shaft 25 passes, the spring 26 connecting the cam 31 and the shaft 25; and a stop 23 having a protrusion 231 engaging with a second tooth 312, the stop 23 being fitted to the spring 26. When the key 80 is inserted into the head 20 through the slot 211, the stop 23 may move in the axial direction of the shaft 25.

[0130] Some or other embodiments of this disclosure described above are not mutually exclusive or different from each other. Any or all elements in the embodiments of this disclosure described above can be combined or combined with each other in configuration or function.

[0131] For example, configuration "A" described in one embodiment of this disclosure and the accompanying drawings can be combined with configuration "B" described in another embodiment of this disclosure and the accompanying drawings. That is, although combinations between configurations are not directly described, combinations are possible except in cases where describing a combination is not possible.

[0132] The above detailed description should be construed as illustrative and not restrictive in all respects. The scope of this disclosure should be determined by a reasonable interpretation of the appended claims, and all variations within the equivalent scope of this disclosure should be included within its scope.

Claims

1. A door lock device, the door lock device comprising: main body; A solenoid comprising a spool and a plunger, a coil wound on the spool, and the plunger being elongated to have a portion exposed to the outside of the solenoid and configured to be magnetized by the coil for sliding inside the spool, the solenoid being disposed within the body; A first slider is inserted into which the portion of the plunger exposed outside the solenoid is inserted, and the first slider is configured to move in the sliding direction of the plunger. A first elastic member is disposed in the first slider and has a first end supported by the plunger and a second end between the first end and the spool and supported by the first slider. as well as A second elastic member has a first end and a second end, the first end being supported by the solenoid, and the second end being supported by the first slider to provide elastic force to the first slider. When the plunger and the first slider move in directions away from each other, the first elastic member is compressed.

2. The door lock device according to claim 1, wherein, The first elastic member is disposed between the plunger and the first slider to provide elastic force to the first slider.

3. The door lock device according to claim 2, wherein, The plunger includes: The distal end, wherein the distal end is disposed in the first slider; and A first stop, located at the distal end of the plunger, is configured to slide on the inner wall of the first slider. The first elastic member is disposed in the first sliding member and is supported by the first stop member.

4. The door lock device according to claim 3, wherein, The first sliding member includes a second stop protruding from the inner wall, the second stop being arranged with the first stop in the longitudinal direction of the plunger.

5. The door lock device according to claim 1, the door lock device further comprising a release member, the release member being installed at the main body such that the first sliding member is spaced apart from the plunger.

6. The door lock device according to claim 5, the door lock device further comprising an arm having a first side connected to the first slider and a second side supported by the release member.

7. The door lock device according to claim 6, wherein, The release element includes: The distal end extends into the interior of the body and is positioned adjacent to the arm; and A knob, connected to the distal end, and providing a rotation axis, and The distal end is spaced apart from the axis of rotation.

8. The door lock device according to claim 6, further comprising: A head, which is mounted on the body and has a groove, through which the interior and exterior of the head communicate with each other; A cam configured to rotate on a shaft fixed inside the head, the cam having a nose projecting from the outermost surface of the cam; A rod that passes through the head and has an end that contacts the peripheral surface of the cam, the rod having a transverse surface supported by the head; as well as A second slider, connected to the arm, is configured to move in a direction intersecting the longitudinal direction of the rod.

9. The door lock device according to claim 8, wherein, When electricity is applied to the solenoid, the second slider and the rod are arranged in the longitudinal direction of the rod.

10. The door lock device according to claim 8, wherein, The rod includes: The first part is in contact with the cam; The second part, which is connected to the first part; and The third part, connected to the second part, has a diameter smaller than that of the second part. The second slider includes a recessed portion that is recessed along the radial direction of the rod in a region adjacent to the rod. The recessed portion is smaller in diameter than the second portion and larger in diameter than the third portion.

11. The door lock device according to claim 8, wherein, The second slider includes: A notch, the notch being recessed radially in a region adjacent to the rod; and A guide member configured on the recess to guide the rod into the recess.

12. The door lock device according to claim 8, wherein, The cam includes a plurality of teeth projecting from the peripheral surface of the cam. The plurality of teeth include: The first tooth is spaced apart from the groove in a direction intersecting the opening direction of the groove; and The second tooth is aligned with the groove in the opening direction of the groove, and When the key is inserted through the slot, the key and the first tooth come into contact with each other, causing the cam to rotate, so that the second tooth engages with the key.

13. The door lock device according to claim 12, wherein, The head includes: A spring, through which the shaft passes, the spring connecting the cam and the shaft; and A stop member having a protrusion that engages with the second tooth, the stop member being fitted to the spring, and When the key is inserted into the head through the slot, the stop is configured to move in the axial direction of the shaft.

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