Magnetic lock with improved structure

Abstract

The magnetic lock with improved structure comprises a lock body shell, a lock tongue, a locking mechanism, a lock tongue pick and a handle pick arranged in the lock body shell; the lock body shell comprises an upper cover plate, a lower base plate and a side lining plate located in front of the upper cover plate and the lower base plate; the lock tongue is in a Z-shaped crank arm shape and comprises a lock tongue, a lock tongue rod and a crank arm; the lock tongue and the crank arm are disposed at both ends of the lock tongue rod; a lock tongue rotating shaft is disposed at a transitional portion where the crank arm connects with the lock tongue rod; a first magnetic element is installed in the lock tongue and the lock tongue can rotate about an axis determined by the lock tongue rotating shaft so that the lock tongue can be extended or retracted in a lock tongue opening portion arranged on the side lining plate under magnetic traction; and the magnetic lock comprises a pin lock core with a rotary handle detachably mounted on the lock body shell, the pin lock core with a rotary handle comprises a lock core and a rotary handle arranged correspondingly in front and back, the lock core and the rotary handle have a common rotation output shaft, and a lock core shift fork is disposed on the common rotation output shaft between the lock core and the rotary handle.

Description

Technical Field

[0001] The invention relates to a room lock, in particular to a magnetic lock for a room. Background Art

[0002] Magnetic locks have been widely used in the doors of furniture rooms. Compared with mechanical locks, magnetic locks have the characteristics of light weight, quietness, and easy locking, so they are widely promoted and used. Among them, the invention patent application of "magnetic silent lock body" with application number 201410043444.3 discloses a magnetic silent lock body, which is provided with a lock body shell, in which a lock tongue, a handle peach, a locking mechanism and a cross peach are respectively embedded, and its characteristics are: the lock body shell is composed of a lining plate, a bottom box and a box cover, a lock tongue hole is provided on the lining plate, a lock tongue avoidance hole A is provided on the bottom box, and a lock tongue avoidance hole B is provided on the box cover; a magnet embedding groove is provided in the lock tongue to embed a magnet block, a lock tongue pivot is provided at the other end of the lock tongue and is pivotally connected between the bottom box and the box cover, a swing arm is provided to connect the pivot with the lock tongue, and a locking arm is provided to connect the pivot; the handle peach is pivotally connected between the bottom box and the box cover, and a knife is provided at one end of the handle peach to move the locking arm to make the lock tongue return to the lock body shell to unlock; the locking mechanism is composed of a positioning plate, a lock tongue plate and a lock tongue paddle The invention discloses a method for manufacturing a locking device for locking a locking bolt; a positioning protrusion and two positioning slide grooves are provided on the positioning plate, and the two positioning slide grooves are respectively embedded in the positioning column A and the positioning column B in the bottom box, and a positioning plate reset torsion spring is provided and embedded in the positioning column A; a lock tongue plate is provided with an opening positioning tooth-shaped groove, a reverse locking positioning tooth-shaped groove, a limiting column, a locking slide groove C, a lock tongue pick embedded column, a lock tongue pick reset torsion spring embedded column, a lock tongue pick reset torsion spring embedded tenon and a pull groove; the limiting column is embedded in the locking slide groove B on the box cover, the locking slide groove C is embedded in the positioning column B on the bottom box, and the lock tongue pick embedded column is embedded in the locking slide groove A on the bottom box; the lock tongue pick is pivotally connected to the lock tongue pick embedded column, one end of which is provided with a handle peach block to cooperate with the pull knife, and the other end is provided with a cross peach block to cooperate with the pick arranged on the cross peach; a lock tongue pick reset torsion spring is embedded in the lock tongue pick reset torsion spring embedded column. The lock body of this structure is mainly composed of a lock tongue, a handle peach, a locking mechanism and a cross peach. Its structural operation is not stable enough and needs further improvement. Summary of the invention

[0003] Analyzing the invention patent application of "magnetic silent lock body" with application number 201410043444.3, it can be found that the operation is not stable enough, there are problems such as easy wear and too large void space. Figure 2As shown, first, the positioning plate 41 is the most important positioning force-bearing component in the lock, but it adopts a solution in which a positioning protrusion 411 and two positioning slots 412 are provided thereon, and the two positioning slots 412 are respectively embedded in the positioning column A and the positioning column B in the bottom box. In fact, the positioning column A126 and the positioning column B127 cooperate with the two positioning slots 412 to guide and limit the movement of the positioning plate 41. The cooperation between them is point contact, which is not only easy to wear but also easy to shake; second, the cross-push peach 5 arranged in the lock body can only receive the door opening signal transmitted by the flat iron adapted to the opening shape of the cross-push peach 5, that is, it is suitable for assembling a structure equipped with an output flat iron, so it cannot be used for room doors but can only be used for outdoor doors (such as gates, balcony doors, etc.); third, for example, the technical solution Figure 6 As shown, when the lock tongue 2 is extended, its lock tongue plate 42 and the locking arm 24 are arranged to be against each other on the left and right, and the lock tongue paddle reset torsion spring mortise 427 is located behind the locking arm 24 and blocks the locking arm 24 so that the lock tongue 2 cannot be retracted into the lock body shell 12; at this time, the lock tongue paddle reset torsion spring mortise 427 and the locking arm 24 are in a left-right layout relationship, and when the lock tongue 2 is already locked, the locking arm 24 and the lock tongue 2 can still swing in the up and down directions, which will cause the door leaf to have a problem of too much vacant space.

[0004] In order to solve at least one of the problems existing in the above structure, the present invention proposes a magnetic lock with an improved structure, comprising a lock body shell, a lock tongue, a locking mechanism, a lock tongue pick, and a handle pick arranged in the lock body shell; the lock body shell comprises an upper cover plate, a lower bottom plate, and a side lining plate located in front of the upper cover plate and the lower bottom plate, the lock tongue is in a Z-shaped crank arm shape and comprises a lock tongue, a lock tongue rod and a crank arm, the lock tongue and the crank arm are disposed at both ends of the lock tongue rod, a lock tongue rotating shaft is disposed at the transition portion where the crank arm is connected to the lock tongue rod, a first magnetic element is installed in the lock tongue, and the lock tongue can rotate about the axis determined by the lock tongue rotating shaft so that the lock tongue can be extended or retracted in the lock tongue opening portion arranged on the side lining plate under magnetic traction; it is characterized in that

[0005] It also includes a pin lock cylinder with a rotary handle detachably mounted on the lock body shell, wherein the pin lock cylinder with a rotary handle includes a lock core and a rotary handle arranged in a front-to-back manner, which have a common rotation output shaft, and a lock cylinder shift fork is arranged on the common rotation output shaft between the lock core and the rotary handle;

[0006] The locking mechanism includes a positioning plate that is plate-shaped and can move in the left and right directions, the lock cylinder fork is arranged on the left side of the positioning plate and can push the positioning plate to move to the right when the lock cylinder fork rotates; a positioning plate return spring is also arranged between the positioning plate and the lock body shell, and the positioning plate return spring is used to push the positioning plate to return to the left direction;

[0007] The locking mechanism also includes a bolt plate that can move in the front-rear direction, and the bolt plate and the positioning plate are stacked up and down; at least two positioning grooves arranged front and back, namely a first positioning groove and a second positioning groove, are provided on the right side of the bolt plate, and a coupling groove for coupling with the lock cylinder fork is provided on the left side of the bolt plate, and a positioning protrusion that can be inserted into any of the positioning grooves is provided on the positioning plate so that the bolt plate has at least two positioning positions, namely, when the positioning protrusion is inserted into the first positioning groove, the bolt plate is located at the rear positioning position, and when the positioning protrusion is inserted into the second positioning groove, the bolt plate is located at the front positioning position;

[0008] The bolt paddle comprises a left top corner and a right top corner and a main body piece connecting the left top corner and the right top corner, the bolt paddle is rotatably connected to the front end of the bolt plate through the main body piece, when the bolt plate is located at the rear positioning position, the crank arm is located within the rotation track range of the right top corner for combining with the right top corner, and the left top corner is located within the rotation track range of the lock cylinder fork of the pin lock cylinder with a rotary handle for combining with the lock cylinder fork; a bolt paddle reset spring is arranged between the bolt paddle and the bolt plate, and the bolt paddle reset spring is used to push the bolt paddle to rotate in a clockwise direction;

[0009] The handle is rotatably arranged at the right side of the positioning plate, and the handle includes a handle, which is used to push the right top corner to rotate counterclockwise when the bolt plate is located at the rear positioning position and the handle is rotated, thereby pushing the bolt back;

[0010] The crank arm and the main body of the bolt paddle are arranged at the upper and lower sides of the front end of the bolt plate, the front right side of the front end of the bolt plate has a bolt plate vertical wall, the bolt plate vertical wall is arranged along the front-to-back direction, an L-shaped step is arranged on the working surface of the crank arm facing the front end of the bolt plate, and the L-shaped step includes a vertical step and a horizontal step;

[0011] The vertical wall of the lock tongue plate is used to extend under the crank arm and be located on the side of the vertical step when the lock tongue is rotated out of the lock body shell and the lock tongue plate moves forward to the front positioning position, thereby preventing the lock tongue from rotating clockwise and retracting into the lock body shell to achieve the locking function; conversely, when the lock tongue plate moves backward and exits to the rear positioning position, the vertical wall of the lock tongue plate is separated from the vertical step under the crank arm and no longer constitutes a retraction restriction on the lock tongue, and the lock tongue can be retracted into the lock body shell.

[0012] A further technical solution may be that, when the lock tongue has been retracted into the lock body shell, the front edge of the vertical wall of the lock tongue plate not only remains under the crank arm but also the front edge of the vertical wall of the lock tongue plate presses against the lateral step position of the L-shaped step so that at this time the lateral step of the L-shaped step can prevent the lock tongue plate from moving forward, and the force point between the front edge of the vertical wall of the lock tongue plate and the lateral step position of the L-shaped step is located to the left of the axial dividing line of the lock tongue rotating shaft and will not exceed the axial dividing line of the lock tongue rotating shaft.

[0013] Among them, the right front side of the front end of the lock tongue plate has a lock tongue plate vertical wall, and the lock tongue plate vertical wall is arranged along the front and rear direction. In another equivalent implementation scheme, the front end of the lock tongue plate vertical wall can also be slightly tilted to the left to facilitate guiding it to slide into the vertical step of the L-shaped step.

[0014] Among them, the axial dividing line of the lock tongue rotating shaft refers to the dividing line that divides the left and right sides with the axis of the lock tongue rotating shaft as the reference; the force point between the front edge of the vertical wall of the lock tongue plate and the horizontal step position of the L-shaped step is located on the left side of the axial dividing line of the lock tongue rotating shaft and will not exceed the axial dividing line of the lock tongue rotating shaft, that is, the force point between the front edge of the vertical wall of the lock tongue plate and the horizontal step position of the L-shaped step only reaches the axial dividing line at most.

[0015] In the above structure, compared with the prior art, the present invention adopts the pin lock cylinder with a rotary handle, which includes a lock cylinder and a rotary handle arranged in a front-to-back correspondence, and they have a common rotation output shaft, and a lock cylinder shift fork is arranged on the common rotation output shaft between the lock cylinder and the rotary handle. Therefore, the pin lock cylinder with a rotary handle can be applied not only to outdoor doors but also to room door panels, which greatly improves the application range of the magnetic lock;

[0016] In the above structure, compared with the prior art, since the main body of the crank arm and the lock tongue paddle of the present invention are arranged on the upper and lower sides of the front end of the lock tongue plate, that is, the present invention not only removes the lock tongue paddle reset torsion spring mortise 427 in the prior art, but also arranges the front end of the lock tongue plate below the crank arm to maintain the combination in the up and down directions, which greatly reduces the shaking space of the crank arm in the up and down directions, thereby reducing the shaking virtual position of the door leaf.

[0017] A further technical solution may be that a long strip-shaped transverse protrusion extending laterally in the left-right direction is provided on the lower side surface of the rear end of the positioning plate facing the lower base plate, and a transverse long groove extending laterally in the left-right direction corresponding to the long strip-shaped transverse protrusion is provided on the lower base plate, and the long strip-shaped transverse protrusion is inserted into the transverse long groove to guide the positioning plate to move in the left-right direction; secondly, a long strip-shaped transverse groove extending laterally in the left-right direction is also provided on the positioning plate, and a first guide column corresponding to the long strip-shaped transverse groove is provided on the upper cover plate or the lower base plate, and the first guide column is inserted into the long strip-shaped transverse groove to guide the positioning plate to move in the left-right direction;

[0018] A lock tongue plate protruding column protruding upward is provided at the rear end position of the lock tongue plate, and a vertical long groove extending vertically along the front-to-back direction corresponding to the lock tongue plate protruding column is provided on the upper cover plate, and the lock tongue plate protruding column is inserted into the vertical long groove to guide the lock tongue plate to move in the front-to-back direction; in addition, a long vertical groove extending vertically along the front-to-back direction is provided at the front position of the lock tongue plate protruding column of the lock tongue plate, and the lock tongue plate is clamped on the first guide column through the long vertical groove, and the lock tongue plate moves in the front-to-back direction in cooperation with the first guide column through the long vertical groove.

[0019] In the above structure, compared with the positioning scheme of the positioning plate 41 in the prior art, not only the positioning column A126 and the reset torsion spring 410 installed thereon are removed, but also because the present invention adopts the structure in which the elongated horizontal protrusion cooperates with the transverse long groove, the characteristic of the elongated horizontal protrusion extending for a relatively long length in the left and right directions can be utilized to realize a huge transformation from point sliding contact to line sliding contact, so that the transverse long groove guides the positioning plate to move in the left and right directions, which obviously becomes more stable, reduces the shaking of the positioning plate, and greatly improves the force strength; secondly, the structure in which the elongated horizontal protrusion cooperates with the transverse long groove is further cooperated with the guiding structure in which the first guide column is inserted into the elongated horizontal groove, thereby changing the more typical two-point positioning scheme in the prior art to multi-point positioning of more than three points.

[0020] A further technical solution may be that a paddle shaft extending toward the lower base plate is fixedly provided at the front end of the lock tongue plate, and the lock tongue paddle is rotatably arranged on the paddle shaft through the main body plate; an elongated paddle groove extending along the front-to-back direction is provided on the lower base plate, and the paddle shaft extends into the elongated paddle groove, thereby not only lengthening the paddle shaft to make the lock tongue paddle more stable, but also allowing the lock tongue plate to move in the front-to-back direction under the guidance of the elongated paddle groove.

[0021] A further technical solution may be that a limiting protrusion is further provided on the side of the front end of the bolt plate facing the bolt paddle, and the bolt paddle is rotatably provided in front of the limiting protrusion, and the limiting protrusion is not only used to allow the bolt paddle to abut against the limiting protrusion when the bolt paddle reset spring pushes the bolt paddle to rotate in the clockwise direction, but also used to run close to the upper surface of the lower bottom plate so as to support the front end of the bolt plate. That is, the limiting protrusion can not only limit the position, but also allow the bolt plate to run smoothly with the help of the cooperation between the limiting protrusion and the lower bottom plate.

[0022] A further technical solution may be that the left top corner includes a first left top corner and a second left top corner arranged in front and back, the top end of the first left top corner has a top corner groove, one end arm of the lock tongue pick reset spring extends between the first left top corner and the second left top corner and is stuck in the top corner groove of the first left top corner, and the second left top corner is used to combine with the lock cylinder fork of the pin lock cylinder with a rotary handle. This can not only prevent the lock cylinder fork from affecting one end arm of the lock tongue pick reset spring when rotating, but also facilitate the use of a casting process to manufacture the lock tongue pick, and is also convenient for assembly.

[0023] A further technical solution may also be that the right front side of the front end of the lock tongue plate has an L-shaped vacant shape, and the L-shaped vacant shape includes the lock tongue plate vertical wall and the lock tongue plate horizontal wall, the lock tongue plate vertical wall is arranged along the front-to-back direction, and the lock tongue plate horizontal wall is arranged along the left-right direction.

[0024] A further technical solution may be that the handle trigger also includes a trigger body, the handle trigger handle extends from the trigger body, the trigger body can be rotatably arranged in the lock body shell, the trigger body is provided with a square iron hole for allowing the handle square iron to pass through, and the upper cover plate and the lower base plate are respectively provided with trigger body end holes for installing the two ends of the trigger body, so that when the door handle is turned, the handle trigger handle can be driven to rotate with the help of the trigger body.

[0025] A further technical solution may be that an upper avoidance gap and a lower avoidance gap are respectively provided on the upper cover plate and the lower bottom plate located at the opening of the lock tongue, and when the lock tongue is retracted into the lock body shell, the first magnetic element is located in the gap defined by the upper avoidance gap and the lower avoidance gap as seen from a top view. In this way, the lock tongue can be directly sucked back into the lock body shell by utilizing the magnetic attraction of the metal around the upper avoidance gap and the lower avoidance gap.

[0026] A further technical solution may be that a first elastic pad is also installed on the lock tongue rod, and when the lock tongue rotates out of the lock body shell, the first elastic pad presses against the inner side of the side lining to absorb the impact force of the lock tongue rod on the side lining and thereby reduce the impact noise.

[0027] A further technical solution may be that a second elastic pad is also provided in the lock body shell, and when the lock tongue is rotated into the lock body shell, the second elastic pad presses against the lock tongue rod or the lock tongue to absorb the impact force when the lock tongue is retracted and thereby reduce the impact noise.

[0028] A further technical solution may be that a limiting body is further arranged in the lock body shell, the limiting body is located within the trajectory range of the lock tongue rotation, and the limiting body is used to limit the depth of the lock tongue rotating into the lock body shell.

[0029] A further technical solution may also include a lock box for installation on a door frame corresponding to the lock tongue, wherein a second magnetic element is provided on the lock box, and the second magnetic element and the first magnetic element are magnetically attracted to each other to generate a magnetic attraction force.

[0030] Since the present invention has the above characteristics and advantages, it can be applied to magnetic lock products. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the general assembly structure of a magnetic lock using the patented technical solution of the present invention; it includes a lock body 100 and a lock box 200;

[0032] Figure 2 It is a schematic diagram of the internal structure of the lock body 100 of the magnetic lock applying the patented technical solution of the present invention after the upper cover plate 11 is removed, at which time the lock tongue 21 is not extended but retracted into the lock body shell;

[0033] Figure 3 It is a schematic diagram of the internal structure of the lock body 100 of the magnetic lock using the patented technical solution of the present invention after the upper cover plate 11 is removed, at which time the lock tongue 21 has extended out of the lock body shell;

[0034] Figure 4It is a schematic diagram of the planar structure of the lock tongue 2 in the magnetic lock using the patented technical solution of the present invention;

[0035] Figure 5 It is a three-dimensional structural schematic diagram of the lock tongue 2 in the magnetic lock using the patented technical solution of the present invention;

[0036] Figure 6 yes Figure 5 A rear view structural diagram of the locking tongue 2;

[0037] Figure 7 It is a three-dimensional structural schematic diagram of the pin lock cylinder 3 with a rotary handle in the magnetic lock using the patented technical solution of the present invention;

[0038] Figure 8 It is a three-dimensional structural schematic diagram of the positioning plate 5 in the magnetic lock using the patented technical solution of the present invention;

[0039] Fig. 9 yes Figure 8 The rear view structural schematic diagram of the positioning plate 5 shown;

[0040] Fig.10 It is a three-dimensional structural schematic diagram of the bolt plate 4 in the magnetic lock using the patented technical solution of the present invention;

[0041] Fig.11 yes Fig.10 The rear view structural schematic diagram of the locking tongue plate 4 is shown;

[0042] Fig.12 It is a three-dimensional structural schematic diagram of the lock tongue paddle 6 in the magnetic lock using the patented technical solution of the present invention;

[0043] Fig.13 yes Fig.12 The rear view structural diagram of the lock tongue paddle 6 is shown;

[0044] Fig.14 It is a three-dimensional structural schematic diagram of a handle pick 7 in a magnetic lock using the patented technical solution of the present invention. DETAILED DESCRIPTION

[0045] The magnetic lock structure using the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0046] like Figure 1 and Figure 2As shown, a magnetic lock with an improved structure comprises a lock body 100, a lock box 200 and a pin lock cylinder 3 with a rotary handle detachably arranged on the lock body shell of the lock body 100. The lock body 100 comprises a lock body shell, a lock tongue 2 arranged in the lock body shell, and the lock body shell comprises an upper cover plate 11, a lower bottom plate 12 and a side lining plate 13 located in front of the upper cover plate 11 and the lower bottom plate 12. A lock tongue opening 131 is arranged on the side lining plate 13, through which a lock tongue 21 of the lock tongue 2 can be extended. The lock box 200 is used to be installed on a door frame corresponding to the lock tongue 21, and the lock box 200 comprises an outer shell 201, on which a second magnetic element 202 is arranged, and the second magnetic element 202 is used to generate magnetic attraction between the first magnetic element 26 arranged in the lock tongue 21 and the second magnetic element 202.

[0047] like Figure 2 , Figure 3 As shown, a lock tongue 2, a locking mechanism, a lock tongue pick 6, and a handle pick 7 are arranged in the lock body shell, and the pin lock core 3 with a rotary handle is detachably installed on the left side of the locking mechanism.

[0048] Among them, Figure 2 , Figure 3 As shown, the lock tongue 2 is relatively located at the front end position in the lock body shell. Figure 4 , Figure 5 and Figure 6 As shown, the lock tongue 2 is in a Z-shaped arm shape and includes a lock tongue 21, a lock tongue rod 22 and an arm 23. The lock tongue 21 and the arm 23 are disposed at both ends of the lock tongue rod 22. The extension direction of the arm 23 and the extension direction of the lock tongue rod 22 form an angle Ɵ, and a lock tongue shaft 24 is provided at the transitional portion where the arm 23 and the lock tongue rod 22 are connected. The lock tongue shaft 24 is positioned on the upper cover plate 11 and the lower bottom plate 12 of the lock body shell, and the lock tongue 2 can rotate about the axis determined by the lock tongue shaft 24. The lock tongue shaft 24 can be two components separated from the lock tongue 2 and rotated relatively, or the lock tongue shaft 24 can be fixedly connected to the lock tongue 2 so that the lock tongue shaft 24 rotates relative to the upper cover plate 11 and the lower bottom plate 12. A lock tongue opening 131 is provided on the side lining plate 13. When the lock tongue 2 rotates about the axis determined by the lock tongue shaft 24, the lock tongue 21 can extend out of the lock tongue opening 131 or retract into the lock body shell; a first magnetic element 26 is installed in the lock tongue 21 so that the lock tongue 2 can rotate and move under magnetic traction.

[0049] like Figure 1 , Figure 2 and Figure 3As shown, an upper avoidance gap 111 and a lower avoidance gap 121 are respectively provided on the upper cover plate 11 and the lower bottom plate 12 located at the lock tongue opening 131. When the lock tongue 21 is retracted into the lock body shell, the first magnetic element 26 is located in the gap defined by the upper avoidance gap 111 and the lower avoidance gap 121 as seen from a top view, so that the lock tongue 21 can be completely adsorbed in the lock body shell.

[0050] like Figure 4 , Figure 5 and Figure 6 As shown, a mounting hole 221 is also provided on the lock tongue rod 22, and a first elastic pad 25 is inserted and installed in the mounting hole 221. When the lock tongue 21 rotates out of the lock body shell, the first elastic pad 25 presses against the inner side of the side lining plate 13 to absorb the impact force of the lock tongue rod 22 on the side lining plate 13 and thus reduce the impact noise; secondly, a second elastic pad 8 is also provided in the lock body shell. When the lock tongue 21 rotates into the lock body shell, the second elastic pad 8 presses against the rear side end of the lock tongue 21 to absorb the impact force when the lock tongue 2 is retracted and thus reduce the impact noise.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, a lock box 200 is provided on the door frame corresponding to the lock tongue 21, and a second magnetic element 202 is provided on the lock box 200, and the second magnetic element 202 and the first magnetic element 26 are mutually attracted to generate magnetic attraction. When the door leaf is closed to the door frame, the lock tongue 21 is automatically sucked out by the magnetic attraction to achieve locking; conversely, when the lock tongue 21 is retracted into the lock body shell by the push of the locking mechanism, the door is unlocked.

[0052] The locking mechanism includes a bolt plate 4 that can move in the front-to-back direction (therefore, the direction in which the bolt plate 4 moves also defines the front-to-back direction in this embodiment), a positioning plate 5 that can move in the left-to-right direction (therefore, the direction in which the positioning plate 5 moves also defines the left-to-right direction in this embodiment), the bolt paddle 6 is rotatably arranged at the front end of the bolt plate 4, and the bolt plate 4 and the positioning plate 5 are stacked up and down; Figure 2 , Figure 3 As shown, the pin lock cylinder 3 with a rotary handle is arranged on the left side of the positioning plate 5, and the handle pick 7 is arranged on the right side of the positioning plate 5.

[0053] like Figure 7As shown, the pin lock cylinder with a rotary handle 3 includes a lock cylinder 31 and a rotary handle 32 arranged in a front-to-back correspondence, which have a common rotation output shaft, and a lock cylinder shift fork 33 is arranged on the common rotation output shaft between the lock cylinder 31 and the rotary handle 32. The lock cylinder 31 is generally arranged to face the outside so that the lock can be unlocked or locked by inserting a key into the lock cylinder 31 outdoors, and the rotary handle 32 is generally arranged to face the inside so that the lock can be unlocked or locked by using the rotary handle 32 indoors; the upper cover plate 11 and the lower bottom plate 12 are reserved with lock cylinder plate holes 110 and 120 for the pin lock cylinder with a rotary handle 3 to pass through, and when the pin lock cylinder with a rotary handle 3 is installed on the upper cover plate 11 and the lower bottom plate 12 of the lock body shell, the lock cylinder shift fork 33 of the pin lock cylinder with a rotary handle 3 is extended into the lock body shell and is disposed on the left and right sides of the locking mechanism with the handle pick 7.

[0054] Among them, Figure 2 , Figure 3 As shown, the positioning plate 5 is located at the rear end of the lock body shell relative to the lock tongue 2, and the positioning plate 5 is plate-shaped and can move in the left and right directions. Figure 8 and Fig. 9 As shown, two long horizontal protrusions 52a, 52b extending laterally in the left-right direction are provided on the lower side surface of the rear end of the positioning plate 5 facing the lower base plate 12, and horizontal long grooves 122a, 122b extending laterally in the left-right direction corresponding to the two long horizontal protrusions 52a, 52b are provided on the lower base plate 12, and the long horizontal protrusions 52a, 52b are respectively inserted into the two long horizontal grooves 122a, 122b for jointly guiding the positioning plate 5 to move in the left-right direction; secondly, a long horizontal groove 53 extending laterally in the left-right direction is also provided on the positioning plate 5, and a first guide column 123 corresponding to the long horizontal groove 53 is provided on the lower base plate 12, and the first guide column 123 is inserted into the long horizontal groove 53 for guiding the positioning plate 5 to move in the left-right direction. A positioning plate reset spring 51 is also arranged between the positioning plate 5 and the lock body shell, and the positioning plate reset spring 51 is used to push the positioning plate 5 to reset and move to the left. In another embodiment, the first guide column 123 can be positioned on the upper cover plate 11 and the lower base plate 12 at the same time.

[0055] like Figure 2 and Figure 3 As shown, the locking tongue plate 4 and the positioning plate 5 are stacked up and down. Fig.10 , Fig.11As shown, a positioning tooth 42 is provided on the right side of the lock tongue plate 4, and the positioning tooth 42 divides the right side of the lock tongue plate 4 into at least two positioning grooves arranged in front and back, namely a first positioning groove 421 and a second positioning groove 422. A coupling groove 44 for coupling with the lock core fork 33 is provided on the left side of the lock tongue plate 4, and a positioning protrusion 54 that can be inserted into any of the positioning grooves 421 and 422 is provided on the positioning plate 5. When the lock core fork 33 located on the left side of the locking mechanism is driven by the key to rotate clockwise or counterclockwise, the lock core fork 33 can not only push the positioning plate 5 to move to the right but also allow the positioning protrusion 54 to disengage from the current positioning groove on the lock tongue plate 4. At this time, the lock core fork 33 also extends into the coupling groove 44 on the left side of the lock tongue plate 4. The lock tongue plate 4 is driven to move forward or backward by one step. After the lock tongue plate 4 moves one step, the positioning plate 5 is reset to the left direction under the push of the positioning plate reset spring 51, and the positioning protrusion 54 on the positioning plate 5 is again inserted into another positioning groove to prevent the lock tongue plate 4 from moving forward or backward; the lock tongue plate 4 can move in the front and rear directions and due to the positioning relationship between the positioning protrusion 54 and the first positioning groove 421 and the second positioning groove 422 respectively, the lock tongue plate 4 has at least two positioning positions, that is, when the positioning protrusion 54 is inserted into the first positioning groove 421, the lock tongue plate 4 is located at the rear positioning position; at this time, if the lock tongue plate 4 moves forward by one step, the positioning protrusion 54 is inserted into the second positioning groove 422, and the lock tongue plate 4 moves to the front positioning position.

[0056] A lock tongue plate protruding column 452 protruding upward is provided at the rear end position of the lock tongue plate 4, and a vertical long groove 112 extending vertically along the front-to-back direction corresponding to the lock tongue plate protruding column 452 is provided on the upper cover plate 11, and the lock tongue plate protruding column 452 is inserted into the vertical long groove to guide the lock tongue plate 4 to move in the front-to-back direction; in addition, a long vertical groove 451 extending vertically along the front-to-back direction is provided in front of the lock tongue plate protruding column 452 of the lock tongue plate 4, and the lock tongue plate 4 is clamped on the first guide column 123 on the upper cover plate 11 or the lower base plate 12 through the long vertical groove 451, and the lock tongue plate 4 moves in the front-to-back direction in cooperation with the first guide column 123 through the long vertical groove 451.

[0057] like Fig.10 As shown, a paddle shaft 463 extending toward the lower bottom plate 12 is fixedly provided at the front end of the bolt plate 4; Fig.12 , Fig.13As shown, the lock tongue paddle 6 includes left top corners 63, 64 and right top corner 62 and a main body piece 61 connecting the left top corners 63, 64 and right top corner 62. The main body piece 61 is provided with a mounting hole 65. The lock tongue paddle 6 is rotatably connected to the paddle shaft 463 provided at the front end of the lock tongue plate 4 through the mounting hole 65 on the main body piece 61. The lower bottom plate 12 is provided with a long strip paddle groove 125 extending in the front-to-back direction. The paddle shaft 463 extends into the long strip paddle groove 125, so that not only the length of the paddle shaft 463 can be lengthened to make the lock tongue paddle 4 more stable, but also the lock tongue plate 4 can be moved in the front-to-back direction under the guidance of the long strip paddle groove 125. Fig.13 As shown, a step 651 is further provided around the mounting hole 65 below the lock tongue paddle 6, and the step 651 protrudes from the lower surface of the lock tongue plate 4, so that the lock tongue paddle 6 can contact the lower base plate 12 with minimal contact through the step 651.

[0058] like Fig.12 , Fig.13 As shown, the left top corners 63 and 64 of the bolt plate 6 are located on the left side of the bolt plate 4, and the right top corner 62 is located on the right side of the bolt plate 4; at the same time, when the bolt plate 4 is located at the rear positioning position, the crank arm 23 is located within the rotation trajectory of the right top corner 62 for combining with the right top corner 62, and the left top corners 63 and 64 are located within the rotation trajectory of the lock cylinder fork 33 of the pin lock cylinder 3 with a rotary handle for combining with the lock cylinder fork 33. In the present technical solution, the left top corners 63 and 64 and the right top corner 62 are actually the two end portions of the main body sheet 61, which can be either a ram-horn-shaped protrusion as shown in the figure, or a straight structure. In any case, as long as the left top corners 63 and 64 can form a combination with the lock cylinder fork 33, and the right top corner 62 can form a combination with the handle handle 72 of the handle pick 7, it will be sufficient. In this way, when the lock tongue plate 4 is located in the rear positioning position, the lock cylinder fork 33 of the pin lock cylinder with a rotary handle 3 can rotate in the clockwise direction to move the left top corners 63 and 64, thereby pushing the lock tongue pick 6 and the right top corner 62 to rotate counterclockwise, and then pushing the crank arm 23 to move in the clockwise direction to retract the lock tongue 21 into the lock body shell.

[0059] A lock tongue paddle reset spring 60 is arranged between the left top corner 63, 64 or other appropriate position of the lock tongue paddle 6 and the lock tongue plate 4, and the lock tongue paddle reset spring 60 is used to push the lock tongue paddle 6 to rotate in the clockwise direction to make the right top corner 62 away from the turning arm 23; specifically, in the present embodiment, a spring shaft 462 is arranged on the lock tongue plate 4 at a position coaxial with the paddle rotating shaft 463 but in the opposite direction, and a positioning protrusion 461 is arranged on the side position of the spring shaft 462, the ring body of the lock tongue paddle reset spring 60 is sleeved on the spring shaft 462 and one of its elastic end arms is supported on the positioning protrusion 461, and the other end arm of the lock tongue paddle reset spring 60 is located at the gap position 632 between the first left top corner 63 and the second left top corner 64.

[0060] However, in order to limit the rotation angle of the lock tongue paddle 6 in the clockwise direction, a limiting protrusion 47 is further provided on the side of the front end of the lock tongue plate 4 facing the lock tongue paddle 6. The lock tongue paddle 6 is rotatably arranged in front of the limiting protrusion 47 and when the lock tongue paddle return spring 60 pushes the lock tongue paddle 6 to rotate in the clockwise direction, the lock tongue paddle 6 is pressed against the limiting protrusion 47; secondly, the limiting protrusion 47 is located in front of the positioning plate 5 and runs close to the top of the lower base plate 12 so as to support the front end of the lock tongue plate 4.

[0061] The left top corners 63 and 64 include a first left top corner 63 and a second left top corner 64 arranged in front and back, the top end of the first left top corner 63 has a top corner groove 631, the other end arm of the lock tongue paddle reset spring 60 is located at the gap position 632 between the first left top corner 63 and the second left top corner 64 and is stuck in the top corner groove 631 of the first left top corner 63, and the second left top corner 64 is used to combine with the lock core fork 33 of the pin lock core 3 with a rotary handle.

[0062] like Figure 1 , Figure 2 As shown in Figure 3, the handle 7 is arranged on the right side of the positioning plate 5. Figure 1As shown, the handle trigger 7 includes a trigger body 71 and a handle handle 72 extending from the trigger body 71. The trigger body 71 can be rotatably arranged in the lock body shell. The trigger body 71 is provided with a square iron hole 70 that allows the handle square iron to pass through. The upper cover plate 11 and the lower bottom plate 12 are respectively provided with trigger body end holes 114 and 124 for installing the two ends of the trigger body 71, that is, the two ends of the trigger body 71 are respectively rotatably inserted into the trigger body end holes 114 and 124 but the height does not exceed the outer surface of the upper cover plate 11 and the lower bottom plate 12, so that when the door handle is turned The handle square iron and the main body 71 can be used to drive the handle lever 72 to rotate; when the lock tongue plate 4 is located at the rear positioning position, the right top corner 62 is located within the clockwise rotation trajectory of the handle lever 72, so that when the door handle is rotated clockwise, the right top corner 62 can be driven to rotate counterclockwise by the handle lever 72; and when the right top corner 62 rotates counterclockwise, the crank arm 23 can push the lock tongue 2 to rotate clockwise and then retract the lock tongue 21; when the lock tongue plate 4 is located at the front positioning position, the lock tongue plate 4 takes the right top corner 62 out of the rotation trajectory of the handle lever 72. Secondly, if Figure 2 As shown, a handle poke reset spring 74 is also provided in the lock body shell of the lock tongue, and the handle poke reset spring 74 presses the tail end portion 73 of the poke body 71, so that when the poke body 71 loses the driving force to rotate the handle, the handle poke 7 is automatically reset to the starting position driven by the handle poke reset spring 74.

[0063] like Figure 2 , Figure 3 As shown, the crank arm 23 and the front end of the bolt plate 4 are stacked up and down, and the crank arm 23 and the main body 61 of the bolt paddle 6 are respectively arranged on the upper and lower sides of the front end of the bolt plate 4. Fig.10 , Fig.11 As shown, the front right side of the front end 40 of the bolt plate 4 has an L-shaped vacant shape, and the L-shaped vacant shape includes a bolt plate vertical wall 401 and a bolt plate horizontal wall 402, the bolt plate vertical wall 401 is arranged along the front-to-back direction, and the bolt plate horizontal wall 402 is arranged along the left-right direction; Figure 6 As shown, an L-shaped step is protruding from the working surface of the crank arm 23 facing the front end of the locking tongue plate 4 , and the L-shaped step includes a vertical step 231 and a horizontal step 232 .

[0064] When the door leaf is closed, the lock tongue 21 is automatically rotated out of the lock body shell by the magnetic attraction on the opposite door frame, and the lock tongue plate 4 can be driven by the lock cylinder fork 33 of the lock cylinder with rotating handle tumbler 3 to move forward to the front positioning position. Figure 3As shown, the bolt plate vertical wall 401 extends below the crank arm 23 and is located on the side of the vertical step 231, thereby preventing the bolt 21 from pressing Figure 2 or Figure 3 When the lock tongue 21 is retracted to the position shown in the figure, the lock tongue 21 of the lock body 2 can be pushed back to the position shown in the figure. When the lock tongue 21 has been retracted into the lock body shell, the front edge of the lock tongue plate 4 abuts against the horizontal step 232 of the L-shaped step, so that the horizontal step 232 of the L-shaped step can prevent the lock tongue plate 4 from moving forward, that is, when the lock tongue 21 has been retracted into the lock body shell and the door leaf has been opened, the crank arm 23 of the lock tongue 2 can prevent the lock tongue plate 4 from being driven forward and locked by the handle 32 of the pin lock cylinder 3 with a handle or the key; at this time, Figure 2 As shown, the force point e between the lock tongue plate 4 and the crank arm 23 is located on the left side of the axis dividing line X of the lock tongue shaft 24 and will not exceed the axis dividing line X of the lock tongue shaft 24, that is, the function of preventing accidental locking is realized.

[0065] According to the above structure, since the crank arm 23 and the front end of the lock tongue plate 4 are overlapped up and down, the crank arm 23 and the front end 40 of the lock tongue plate 4 are kept overlapped and staggered in the up and down directions. The crank arm 23 is used to guide the movement of the front end 40 of the lock tongue plate 4 above the front end 40 of the lock tongue plate 4 without jamming and with reliable operation. It is also convenient for installation and assembly between them during manufacturing and maintenance.

Claims

1. A magnetic lock with an improved structure, comprising a lock body shell, a lock tongue, a locking mechanism, a lock tongue pick, and a handle pick arranged in the lock body shell; the lock body shell comprises an upper cover plate, a lower bottom plate, and a side lining plate located in front of the upper cover plate and the lower bottom plate; the lock tongue is in a Z-shaped crank arm shape and comprises a lock tongue, a lock tongue rod, and a crank arm; the lock tongue and the crank arm are disposed at both ends of the lock tongue rod; a lock tongue rotating shaft is disposed at a transitional portion where the crank arm is connected to the lock tongue rod; a first magnetic element is installed in the lock tongue and the lock tongue can rotate about an axis determined by the lock tongue rotating shaft so that the lock tongue can be extended or retracted in a lock tongue opening portion arranged on the side lining plate under magnetic traction; characterized in that: It also includes a pin lock cylinder with a rotary handle detachably mounted on the lock body shell, wherein the pin lock cylinder with a rotary handle includes a lock core and a rotary handle arranged in a front-to-back manner, which have a common rotation output shaft, and a lock cylinder shift fork is arranged on the common rotation output shaft between the lock core and the rotary handle; The locking mechanism includes a positioning plate that is plate-shaped and can move in the left and right directions, the lock cylinder fork is arranged on the left side of the positioning plate and can push the positioning plate to move to the right when the lock cylinder fork rotates; a positioning plate return spring is also arranged between the positioning plate and the lock body shell, and the positioning plate return spring is used to push the positioning plate to return to the left direction; The locking mechanism also includes a bolt plate that can move in the front-rear direction, and the bolt plate and the positioning plate are stacked up and down; at least two positioning grooves arranged front and back, namely a first positioning groove and a second positioning groove, are provided on the right side of the bolt plate, and a coupling groove for coupling with the lock cylinder fork is provided on the left side of the bolt plate, and a positioning protrusion that can be inserted into any of the positioning grooves is provided on the positioning plate so that the bolt plate has at least two positioning positions, namely, when the positioning protrusion is inserted into the first positioning groove, the bolt plate is located at the rear positioning position, and when the positioning protrusion is inserted into the second positioning groove, the bolt plate is located at the front positioning position; The bolt paddle comprises a left top corner and a right top corner and a main body part connecting the left top corner and the right top corner, the bolt paddle is rotatably connected to the front end of the bolt plate through the main body part, when the bolt plate is located at the rear positioning position, the crank arm is located within the rotation track range of the right top corner for combining with the right top corner, and the left top corner is located within the rotation track range of the lock cylinder fork of the pin lock cylinder with a rotary handle for combining with the lock cylinder fork; a bolt paddle return spring is arranged between the bolt paddle and the bolt plate, and the bolt paddle return spring is used to push the bolt paddle to rotate in the clockwise direction; The handle is rotatably arranged at the right side of the positioning plate, and the handle includes a handle, which is used to push the right top corner to rotate counterclockwise when the bolt plate is located at the rear positioning position and the handle is rotated, thereby pushing the bolt back; The crank arm and the main body of the bolt paddle are arranged at the upper and lower sides of the front end of the bolt plate, the front right side of the front end of the bolt plate has a bolt plate vertical wall, the bolt plate vertical wall is arranged along the front-to-back direction, an L-shaped step is arranged on the working surface of the crank arm facing the front end of the bolt plate, and the L-shaped step includes a vertical step and a horizontal step; The vertical wall of the lock tongue plate is used to extend under the crank arm and be located on the side of the vertical step when the lock tongue is rotated out of the lock body shell and the lock tongue plate moves forward to the front positioning position, thereby preventing the lock tongue from rotating clockwise and retracting into the lock body shell to achieve the locking function; conversely, when the lock tongue plate moves backward and exits to the rear positioning position, the vertical wall of the lock tongue plate is separated from the vertical step under the crank arm and no longer constitutes a retraction restriction on the lock tongue, and the lock tongue can be retracted into the lock body shell.

2. The magnetic lock with improved structure according to claim 1, characterized in that: The lock tongue plate is also used for that when the lock tongue has been retracted into the lock body shell, the front edge of the vertical wall of the lock tongue plate not only remains under the crank arm but also the front edge of the vertical wall of the lock tongue plate presses against the lateral step position of the L-shaped step so that at this time the lateral step of the L-shaped step can prevent the lock tongue plate from moving forward, and the force point between the front edge of the vertical wall of the lock tongue plate and the lateral step position of the L-shaped step will not exceed the axial dividing line of the lock tongue rotating shaft.

3. The magnetic lock with improved structure according to claim 1, characterized in that: A long strip-shaped transverse protrusion extending transversely in the left-right direction is arranged on the lower side surface of the rear end of the positioning plate facing the lower base plate, and a transverse long groove extending transversely in the left-right direction corresponding to the long strip-shaped transverse protrusion is arranged on the lower base plate, and the long strip-shaped transverse protrusion is inserted into the transverse long groove to guide the positioning plate to move in the left-right direction; a long strip-shaped transverse groove extending transversely in the left-right direction is also arranged on the positioning plate, and a first guide column corresponding to the long strip-shaped transverse groove is arranged on the upper cover plate or the lower base plate, and the first guide column is inserted into the long strip-shaped transverse groove to guide the positioning plate to move in the left-right direction; A lock tongue plate protruding column protruding upward is provided at the rear end position of the lock tongue plate, and a vertical long groove extending vertically along the front-to-back direction corresponding to the lock tongue plate protruding column is provided on the upper cover plate, and the lock tongue plate protruding column is inserted into the vertical long groove to guide the lock tongue plate to move in the front-to-back direction; in addition, a long vertical groove extending vertically along the front-to-back direction is provided at the front position of the lock tongue plate protruding column of the lock tongue plate, and the lock tongue plate is clamped on the first guide column through the long vertical groove, and the lock tongue plate moves in the front-to-back direction in cooperation with the first guide column through the long vertical groove.

4. The magnetic lock with improved structure according to claim 1, characterized in that: A paddle shaft extending toward the lower base plate is fixedly provided at the front end of the lock tongue plate, and the lock tongue paddle is rotatably arranged on the paddle shaft through the main body plate; a long strip paddle groove extending in the front-to-back direction is arranged on the lower base plate, and the paddle shaft extends into the long strip paddle groove.

5. The magnetic lock with improved structure according to claim 1, characterized in that: A limiting protrusion is also provided on the side of the front end of the lock tongue plate facing the lock tongue pick, and the lock tongue pick is rotatably arranged in front of the limiting protrusion. The limiting protrusion is not only used to allow the lock tongue pick to rest against the limiting protrusion when the lock tongue pick reset spring pushes the lock tongue pick to rotate in the clockwise direction, but also used to run close to the upper surface of the lower base plate so as to support the front end of the lock tongue plate.

6. The magnetic lock with improved structure according to claim 1, characterized in that: The left top corner includes a first left top corner and a second left top corner arranged in front and back, the top end of the first left top corner has a top corner groove, one end arm of the lock tongue paddle return spring extends between the first left top corner and the second left top corner and is stuck in the top corner groove of the first left top corner, and the second left top corner is used to combine with the lock core fork of the pin lock core with a rotary handle.

7. The improved magnetic lock according to claim 1, characterized in that: The right front side of the front end of the lock tongue plate has an L-shaped vacant shape, and the L-shaped vacant shape includes the lock tongue plate vertical wall and the lock tongue plate horizontal wall. The lock tongue plate vertical wall is arranged along the front-to-back direction, and the lock tongue plate horizontal wall is arranged along the left-to-right direction.

8. The improved magnetic lock according to any one of claims 1 to 7, characterized in that: The handle trigger also includes a trigger body, the handle handle extends from the trigger body, the trigger body can be rotatably arranged in the lock body shell, the trigger body is provided with a square iron hole that can allow the handle square iron to pass through, and the upper cover plate and the lower base plate are respectively provided with trigger body end holes that can be used to install the two ends of the trigger body, so that when the door handle is turned, the handle can be driven to rotate with the help of the trigger body.

9. The magnetic lock with improved structure according to any one of claims 1 to 7, characterized in that: An upper avoidance gap and a lower avoidance gap are respectively arranged on the upper cover plate and the lower bottom plate located at the lock tongue opening. When the lock tongue is retracted into the lock body shell, the first magnetic element is located in the gap defined by the upper avoidance gap and the lower avoidance gap.

10. The magnetic lock with improved structure according to any one of claims 1 to 7, characterized in that: A first elastic pad is also installed on the lock tongue rod. When the lock tongue rotates out of the lock body shell, the first elastic pad presses against the inner side of the side lining plate to absorb the impact force of the lock tongue rod on the side lining plate and reduce the impact noise.

11. The improved magnetic lock according to any one of claims 1 to 7, characterized in that: A second elastic pad is also arranged in the lock body shell. When the lock tongue rotates into the lock body shell, the second elastic pad presses against the lock tongue rod or the lock tongue to absorb the impact force when the lock tongue is retracted and reduce the impact noise.

12. The improved magnetic lock according to any one of claims 1 to 7, characterized in that: A limiting body is also arranged in the lock body shell. The limiting body is located within the track range of the rotation of the lock tongue. The limiting body is used to limit the depth of the lock tongue rotating into the lock body shell.

13. The improved magnetic lock according to any one of claims 1 to 7, characterized in that: It also includes a lock box for installation on a door frame corresponding to the lock tongue, and a second magnetic element is arranged on the lock box. The second magnetic element and the first magnetic element are magnetically attracted to each other to generate magnetic attraction.

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