Left-right universal type electromagnetic door lock

Abstract

The invention relates to a left-right universal electromagnetic door lock which comprises a lock supporting plate provided with an electromagnetic lock. A fixing plate is arranged on the surface, facing the lock supporting plate, of the bottom plate; the rotating shaft is rotationally connected with a first connecting rod; a mounting hole penetrates through the first connecting rod in the axial direction of the rotating shaft; the door magnetic detector comprises a magnet and a sensor; the magnet is arranged in the mounting hole; the sensor is arranged on the fixing plate; a first connecting plate is arranged on the side, facing the bottom plate, of the lock supporting plate. A second connecting plate is arranged on the side, facing the lock supporting plate, of the bottom plate and connected with the first connecting plate. The spring bolt and the sensor are arranged on the opposite side of the rotating plane of the first connecting rod. And when the first connecting rod is screwed between the spring bolt and the sensor, two ends of the mounting hole are respectively aligned with the sensor and the spring bolt. According to the left-right universal type electromagnetic door lock, the sensor and the spring bolt are aligned, namely the sensor is arranged on the telescopic path of the spring bolt, during left-right exchange installation, the rotating shaft is directly rotated around the spring bolt, left-right exchange installation can be conducted, and installation of the left-right universal type electromagnetic door lock is greatly facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic door locks, and in particular to a left-right universal electromagnetic door lock. Background Art

[0002] If workers illegally open the safety door before the construction elevator car reaches the floor, it may cause a serious fall accident. Installing an electromagnetic lock on the safety door can physically eliminate this risk.

[0003] A common electromagnetic lock consists of a deadbolt and a magnetic sensor. These are fixed in position and must be installed in a left-right orientation. To reversibly rotate the lock, the lock must be rotated 180° horizontally. While the lock cylinder's orientation remains unchanged, the unlocking and locking handle's rotational direction changes, making it difficult to use. In practice, only two symmetrical transmission mechanisms can be produced to accommodate left-right installation, resulting in high production and storage costs.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a left-right universal electromagnetic door lock to facilitate the reversing installation of the lock.

[0006] The technical solutions of the present invention are as follows: The left and right universal electromagnetic door lock includes: A lock support plate is provided with an electromagnetic lock; A bottom plate, with a fixing plate provided on a surface facing the lock support plate; A rotating shaft is rotatably connected to a first connecting rod; along the axial direction of the rotating shaft, a mounting hole is formed through the first connecting rod; The door magnetic detector comprises a magnet and a sensor; the magnet is arranged in the mounting hole; the sensor is arranged on the fixing plate; Among them, a first connecting plate is provided on the side of the lock support plate facing the base plate; a second connecting plate is provided on the side of the base plate facing the lock support plate to connect to the first connecting plate; the lock tongue of the electromagnetic lock and the sensor are provided on opposite sides of the rotation plane of the first connecting rod; when the first connecting rod is screwed into between the lock tongue and the sensor, the two ends of the mounting hole are aligned with the sensor and the lock tongue respectively.

[0007] A further technical solution is that the electromagnetic lock is arranged on the surface of the lock support plate away from the base plate.

[0008] Its further technical solution is that a lower enclosure and a back plate are also provided on the lock support plate; the lower enclosure and the back plate are arranged perpendicular to the lock support plate, and the lower enclosure and the back plate are arranged around the electromagnetic lock; the back plate is arranged on the side of the electromagnetic lock away from the fixed plate.

[0009] A further technical solution is that a lock hole is provided on the lower enclosure between the lock tongue and the fixing plate; and the lock tongue passes through the enclosure along the lock hole.

[0010] A further technical solution is that an upper cover plate is also provided on the lock support plate, and an upper enclosure is provided on the side of the upper cover plate facing the lock support plate; the upper enclosure is provided parallel to the extension and retraction direction of the lock tongue, and the upper enclosure is connected to the lower enclosure.

[0011] A further technical solution is that a first waist hole is provided on the first connecting plate, and a first connecting hole is provided on the second connecting plate; the first connecting plate and the second connecting plate are connected via the first waist hole and the first connecting hole.

[0012] A further technical solution is that a limiting plate is provided at one end of the lock support plate close to the fixing plate; and a detection hole is opened on the limiting plate to align with the sensor.

[0013] A further technical solution is that the outer edge of the fixing plate is bent toward one side of the electromagnetic lock to form a flange; the flange surrounds the sensor.

[0014] A further technical solution is that a drainage hole is provided on the bottom plate.

[0015] A further technical solution is that one end of the rotating shaft away from the first connecting rod is rotatably connected to a second connecting rod; the second connecting rod is arranged parallel to the first connecting rod, and the first connecting rod and the second connecting rod are arranged on opposite sides of the electromagnetic lock.

[0016] The beneficial technical effects of the present invention are as follows: (1) The left-right universal electromagnetic door lock of the present invention is provided with an electromagnetic lock and a door magnetic detector. The left-right universal electromagnetic door lock is opened and closed by the extension and retraction of the electromagnetic lock's lock tongue. At the same time, the door magnetic detector can automatically monitor the opening and closing status of the left-right universal electromagnetic door lock. In addition, the two ends of the installation opened along the axial direction of the rotating shaft can align the sensor and the lock tongue at the same time, that is, the sensor is set on the extension and retraction path of the lock tongue. When the left-right installation is switched, the rotating shaft can be directly rotated 180 degrees around the lock tongue to perform the left-right switching installation without replacing the first connecting rod, which greatly facilitates the installation of the left-right universal electromagnetic door lock and reduces the production cost of the left-right universal electromagnetic door lock. Among them, the first connecting plate and the second connecting plate are respectively provided on the lock support plate and the bottom plate, and the lock support plate and the bottom plate are fixed by the first connecting plate and the second connecting plate. The first connecting plate and the second connecting plate are connected to each other in a close fit, ensuring the connection strength between the fixed lock support plate and the bottom plate while leaving a gap between the fixed lock support plate and the bottom plate to ensure the heat dissipation performance of the electromagnetic lock.

[0017] (2) Furthermore, a first waist hole is provided on the first connecting plate to connect with the second connecting plate. Along the length direction of the first waist hole, the positional relationship between the lock support plate and the base plate can be conveniently adjusted to compensate for assembly errors and simplify the installation of the left and right universal electromagnetic door locks.

[0018] (3) Furthermore, a limit plate is provided on the lock support plate. The limit plate can shield and protect the sensor and simultaneously support and position the lock support plate and the fixed plate. When the lock support plate and the base plate are separated, the limit plate will also be away from the sensor, making it easier to remove the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a left-right universal electromagnetic door lock in an unlocked state according to an embodiment of the present disclosure is shown.

[0020] Figure 2 A schematic diagram of the exploded structure between the lock support plate, base plate, back plate and upper cover plate in a left-right universal electromagnetic door lock according to an embodiment of the present disclosure is shown.

[0021] Figure 3 A schematic diagram of the exploded structure between the rotating shaft, the first connecting rod and the second connecting rod in a left-right universal electromagnetic door lock according to an embodiment of the present disclosure is shown.

[0022] Markings in the accompanying drawings: 1. Lock support plate; 11. Lower enclosure; 111. Lock hole; 112. Second connecting hole; 12. First connecting plate; 121. First waist hole; 13. Limit plate; 131. Detection hole; 132. First guide part; 2. Bottom plate; 21. Second connecting plate; 211. First connecting hole; 22. Fixing plate; 221. Flanged edge; 23. Drain hole; 3. Back plate; 31. Unlocking hole; 4. Upper cover; 41. Upper enclosure; 411. Second waist hole; 42. Second guide part; 5. Electromagnetic lock; 51. Lock tongue; 52. Emergency pull pin; 6. Door magnetic detector; 61. Magnet; 62. Sensor; 7. Rotating shaft; 71. Bushing; 72. Clamp; 73. Mounting plate; 731. Gear lever; 74. Annular groove; 8. First connecting rod; 81. Mounting hole; 82. Handle; 83. Bolt; 9. Second connecting rod. DETAILED DESCRIPTION

[0023] In order to make the objectives, features and advantages of the present invention more clearly understood, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in this specification for people familiar with this technology to understand and read, and are not intended to limit the conditions for the implementation of the present invention. Therefore, they have no technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention.

[0024] In the description of the present invention, the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", and "circumferential" are defined as orientations or positional relationships based on those shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a left-right universal electromagnetic door lock in an unlocked state according to an embodiment of the present disclosure is shown. Figure 2 A schematic diagram of the exploded structure between the lock support plate, base plate, back plate and upper cover plate in a left-right universal electromagnetic door lock according to an embodiment of the present disclosure is shown. Figure 3 The exploded structure diagram of the rotating shaft, the first connecting rod and the second connecting rod in the left and right universal electromagnetic door lock of an embodiment of the present disclosure is shown. Figure 1 、 Figure 2 and Figure 3The left-right universal electromagnetic door lock includes a lock support plate 1, which is provided with an electromagnetic lock 5. The left-right universal electromagnetic door lock is opened and closed by retracting and extending the lock tongue 51 of the electromagnetic lock 5. A fixing plate 22 is provided on the surface of the base plate 2 facing the lock support plate 1. The rotating shaft 7 is rotatably connected to the first connecting rod 8. A mounting hole 81 is formed through the first connecting rod 8 along the axial direction of the rotating shaft 7. The door magnetic detector 6 includes a magnet 61 and a sensor 62. The door magnetic detector 6 can be a commercially available MC59 door magnetic sensor from Tomos. The magnet 61 is disposed in the mounting hole 81. The sensor 62 is disposed on the fixing plate 22. An annular groove 74 is formed on the rotating shaft 7 and is sleeved with a clamp 72. The outer diameter of the clamp 72 protrudes from the outer diameter of the rotating shaft 7 to locate the relative positions between the rotating shaft 7 and the first connecting rod 8, and between the rotating shaft 7 and the second connecting rod 9. The rotating shaft 7 and the first connecting rod 8, as well as the rotating shaft 7 and the second connecting rod 9, are connected by bolts 83.

[0026] A first connecting plate 12 is provided on the side of the lock support plate 1 facing the base plate 2. A second connecting plate 21 is provided on the side of the base plate 2 facing the lock support plate 1, connecting to the first connecting plate 12. The lock support plate 1 and the base plate 2 are secured together by the first and second connecting plates 12, 21. The first and second connecting plates 12, 21 are attached to each other and partially overlap, ensuring the connection strength between the lock support plate 1 and the base plate 2. The lock tongue 51 and the sensor 62 are arranged on opposite sides of the rotation plane of the first connecting rod 8. When the first connecting rod 8 is screwed between the lock tongue 51 and the sensor 62, the ends of the mounting hole 81 align with the sensor 62 and the lock tongue 51, respectively. This means that the sensor 62 is positioned in the telescopic path of the lock tongue 51. For left-right reversal, the lock tongue 51 can be directly rotated 180° around the rotating shaft 7 to achieve left-right reversal without replacing the first connecting rod 8. This greatly facilitates the installation of a left-right universal electromagnetic door lock and reduces the production cost of the lock.

[0027] Preferably, the first connecting plate 12 and the second connecting plate 21 are formed by folding the outer edges of the lock support plate 1 and the bottom plate 2 respectively, without the need for additional welding to connect the first connecting plate 12 and the second connecting plate 21, thereby simplifying the processing of the lock support plate 1 and the bottom plate 2.

[0028] In some embodiments, the electromagnetic lock 5 is disposed on the surface of the lock support plate 1 away from the bottom plate 2. Through the connection between the first connecting plate 12 and the second connecting plate 21, a gap is created between the lock support plate 1 and the bottom plate 2 to facilitate heat dissipation of the electromagnetic lock 5.

[0029] Please refer to Figure 1 and Figure 2, a lower enclosure 11 and a back plate 3 are also provided on the lock support plate 1. The lower enclosure 11 and the back plate 3 are arranged perpendicular to the lock support plate 1, and the lower enclosure 11 and the back plate 3 are arranged around the electromagnetic lock 5 to protect and fix the electromagnetic lock 5. The electromagnetic lock 5 can be a waterproof type electromagnetic lock 5. The back plate 3 is arranged on the side of the electromagnetic lock 5 away from the fixed plate 22. In some embodiments, an unlocking hole 31 can be provided on the electromagnetic lock 5. In this case, the electromagnetic lock 5 can be a commercially available SARY LY-03 type electromagnetic lock 5. An emergency pull pin 52 is provided on the back of the above-mentioned electromagnetic lock 5. In the event of a power outage or system failure, the electromagnetic lock 5 can be manually unlocked by the emergency pull pin 52. The unlocking hole 31 is used for the emergency pull pin 52 to pass through, making it convenient for the user to operate the emergency pull pin 52.

[0030] Preferably, a lock hole 111 is provided on the lower enclosure 11 between the lock tongue 51 and the fixing plate 22. The lock tongue 51 passes through the enclosure along the lock hole 111.

[0031] More preferably, an upper cover plate 4 is further provided on the lock support plate 1, and an upper enclosure 41 is provided on the side of the upper cover plate 4 facing the lock support plate 1. The upper cover plate 4 shields and protects the electromagnetic lock 5. The upper enclosure 41 is arranged parallel to the extension and contraction direction of the lock tongue 51 to prevent the upper enclosure 41 from interfering with the lock tongue 51. The upper enclosure 41 is connected to the lower enclosure 11 to fix the upper cover plate 4 on the lock support plate 1. Specifically, a second waist hole 411 is provided on the upper enclosure 41, and a second connecting hole 112 is provided on the lower enclosure 11 to align with the second waist hole 411. The threaded connection fixes the upper cover plate 4 to the lock support plate 1 along the second waist hole 411 and the second connecting hole 112. Along the length direction of the second waist hole 411, the position between the upper cover plate 4 and the lock support plate 1 can be easily adjusted, which facilitates the assembly between the upper cover plate 4 and the lock support plate 1.

[0032] In some embodiments, the back plate 3 is disposed at the end of the lock support plate 1 away from the sensor 62. When the lock support plate 1 and the bottom plate 2 are connected, the bottom plate 2 can be positioned with the help of the back plate 3 to facilitate assembly between the lock support plate 1 and the bottom plate 2.

[0033] In other embodiments, the outer edge of the flange 221, which is away from the lock support plate 1 and is close to the electromagnetic lock 5, is folded toward the side away from the lock support plate 1 to form a first guide portion 132. The outer edge of the upper cover 4, which is close to the sensor 62, is folded toward the side away from the lock support plate 1 to form a second guide portion 42. The first guide portion 132 and the second guide portion 42 can be arranged to open upward at an obtuse angle to facilitate the first connecting rod 8 to slide along the first guide portion 132 and the second guide portion 42 into between the lock tongue 51 and the sensor 62.

[0034] Please refer to Figure 1 and Figure 2The first connecting plate 12 defines a first waist hole 121, and the second connecting plate 21 defines a first connecting hole 211. The first connecting plate 12 and the second connecting plate 21 are connected via the first waist hole 121 and the first connecting hole 211. The positional relationship between the lock support plate 1 and the base plate 2 can be easily adjusted along the length of the first waist hole 121 to compensate for assembly errors and simplify the installation of the universal left / right electromagnetic door lock.

[0035] Preferably, a drainage hole 23 is provided on the bottom plate 2 to drain water that has seeped into between the lock support plate 1 and the bottom plate 2 .

[0036] Please refer to Figure 1 and Figure 2 A stop plate 13 is provided on one end of the lock support plate 1, near the fixed plate 22. A detection hole 131 is formed in the stop plate 13, which is aligned with the sensor 62. The stop plate 13 shields and protects the sensor 62 while also supporting the position between the lock support plate 1 and the fixed plate 22. When the lock support plate 1 and the base plate 2 are separated, the stop plate 13 moves away from the sensor 62, facilitating its removal.

[0037] Preferably, the outer edge of the fixing plate 22 is bent toward one side of the electromagnetic lock 5 to form a flange 221. The flange 221 surrounds the sensor 62. The sensor 62 is wrapped and protected by the flange 221, the fixing plate 22 and the limiting plate 13.

[0038] More preferably, the lock body structures that fix the electromagnetic lock 5 can be connected by plug welding, which increases the accuracy of welding positioning and takes into account the stability of the overall structure.

[0039] Please refer to Figure 1 and Figure 3 The end of the rotating shaft 7, away from the first connecting rod 8, is rotatably connected to a second connecting rod 9. The second connecting rod 9 is arranged parallel to the first connecting rod 8 and is located on opposite sides of the electromagnetic lock 5. The first and second connecting rods 8, 9 are each provided with a handle 82. When the left-right universal electromagnetic door lock is installed on a door panel (not shown), the first and second connecting rods 8, 9 face opposite sides of the door panel, and two handles 82 extend from opposite sides of the door panel. The handles 82 allow the first connecting rod 8 to be rotated from both inside and outside the door.

[0040] Preferably, the overall structure of the left and right universal electromagnetic door lock can be made of 201 stainless steel. 201 stainless steel has good comprehensive properties, acid and alkali resistance, polished appearance without pores, beautiful and easy to clean.

[0041] More preferably, a sleeve 71 is mounted on the rotating shaft 7, and a mounting plate 73 is mounted on the sleeve 71. The sleeve 71 is secured to the door panel via the mounting plate 73, thereby rotatably connecting the rotating shaft 7 and the door panel. A stopper 731 is provided on the side of the mounting plate 73 facing the second connecting rod 9. This stopper 731 limits the rotation angle of the second connecting rod 9, reduces the ineffective rotation angle of the rotating shaft 7, and optimizes the user experience.

[0042] The specific workflow of the present invention is as follows: During installation, the electromagnetic lock 5 and rotating shaft 7 are fixed to the door panel and door frame, respectively. To reposition the electromagnetic lock, simply rotate the rotating shaft 7 180° around the electromagnetic lock 5 to adjust the installation position. After repositioning the rotating shaft 7, when the first connecting rod 8 is screwed between the lock tongue 51 and the sensor 62, the ends of the mounting hole 81 remain aligned with the lock tongue 51 and the sensor 62, respectively, without affecting the unlocking and locking functions of the electromagnetic lock.

[0043] To lock the door, the user grips handle 82 and rotates it about axis 7. This causes the first and second connecting rods 8 and 9 to rotate about axis 7 until the first connecting rod 8 is screwed in between the lock tongue 51 and the sensor 62. At this point, the ends of mounting hole 81 are aligned with the lock tongue 51 and the sensor 62, respectively. The lock tongue 51 extends into mounting hole 81, restricting the rotation of the first connecting rod 8. The relative positions of the electromagnetic lock 5 and axis 7 are now fixed, as are the relative positions of the door panel and door frame. The universal electromagnetic door lock is now locked. Simultaneously, sensor 62 detects magnet 61 within mounting hole 81, automatically determining that the universal electromagnetic door lock is locked.

[0044] To unlock, the user first controls the electromagnetic lock 5, retracting its lock tongue 51. The user then grasps and rotates the electromagnetic lock 5 about the shaft 7, driving the shaft 7 and the first connecting rod 8 to rotate about the shaft's axis until the first connecting rod 8 is freed from between the lock tongue 51 and the sensor 62. At this point, the relative positions of the electromagnetic lock 5 and the shaft 7 are no longer fixed, nor are the relative positions of the door panel and door frame. The universal electromagnetic door lock is unlocked. Simultaneously, the sensor 62 detects the absence of the magnet 61 within the mounting hole 81, automatically determining that the universal electromagnetic door lock is unlocked.

[0045] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A universal electromagnetic door lock, characterized in that: The left and right universal electromagnetic door lock includes: A lock support plate is provided with an electromagnetic lock; A bottom plate, with a fixing plate provided on a surface facing the lock support plate; A rotating shaft is rotatably connected to a first connecting rod; along the axial direction of the rotating shaft, a mounting hole is formed through the first connecting rod; The door magnetic detector comprises a magnet and a sensor; the magnet is arranged in the mounting hole; the sensor is arranged on the fixing plate; Among them, a first connecting plate is provided on the side of the lock support plate facing the base plate; a second connecting plate is provided on the side of the base plate facing the lock support plate to connect to the first connecting plate; the lock tongue of the electromagnetic lock and the sensor are provided on opposite sides of the rotation plane of the first connecting rod; when the first connecting rod is screwed into between the lock tongue and the sensor, the two ends of the mounting hole are aligned with the sensor and the lock tongue respectively.

2. The left-right universal electromagnetic door lock according to claim 1, characterized in that: The electromagnetic lock is arranged on a surface of the lock support plate away from the bottom plate.

3. The universal electromagnetic door lock according to claim 1, characterized in that: The lock support plate is also provided with a lower enclosure and a back plate; the lower enclosure and the back plate are arranged perpendicular to the lock support plate, and the lower enclosure and the back plate are arranged around the electromagnetic lock; the back plate is arranged on the side of the electromagnetic lock away from the fixed plate.

4. The universal electromagnetic door lock according to claim 3, characterized in that: A lock hole is provided on the lower enclosure between the lock tongue and the fixing plate; the lock tongue passes through the enclosure along the lock hole.

5. The left-right universal electromagnetic door lock according to claim 3, characterized in that: The lock support plate is further provided with an upper cover plate, and an upper enclosure is provided on the side of the upper cover plate facing the lock support plate; the upper enclosure is provided parallel to the extension and retraction direction of the lock tongue, and the upper enclosure is connected to the lower enclosure.

6. The universal electromagnetic door lock according to claim 1, characterized in that: The first connecting plate is provided with a first waist hole, and the second connecting plate is provided with a first connecting hole; the first connecting plate and the second connecting plate are connected via the first waist hole and the first connecting hole.

7. The universal electromagnetic door lock according to claim 1, characterized in that: A limiting plate is provided on one end of the lock support plate close to the fixing plate; a detection hole is provided on the limiting plate to align with the sensor.

8. The left-right universal electromagnetic door lock according to claim 7, characterized in that: The outer edge of the fixing plate is bent toward one side of the electromagnetic lock to form a flange; the flange surrounds the sensor.

9. The universal electromagnetic door lock according to claim 1, characterized in that: The bottom plate is provided with a drainage hole.

10. The universal electromagnetic door lock according to claim 1, characterized in that: One end of the rotating shaft away from the first connecting rod is rotatably connected to the second connecting rod; the second connecting rod is arranged parallel to the first connecting rod, and the first connecting rod and the second connecting rod are arranged on opposite sides of the electromagnetic lock.

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