Electromagnetic lock

Abstract

The utility model relates to an electromagnetic lock which is provided with a long-strip-shaped base extending in the first direction, a groove is formed in the long-strip-shaped base, a spring bolt is installed in the groove of the long-strip-shaped base and can stretch out and draw back in the long-strip-shaped base, the stretching-out and drawing-back direction of the spring bolt is perpendicular to the first direction, and a through hole is formed in the spring bolt. The electromagnetic telescopic rod is installed in a groove of the long-strip-shaped base, and the telescopic direction of the electromagnetic telescopic rod is consistent with the first direction. The telescopic end of the electromagnetic telescopic rod is connected with the special-shaped block, the special-shaped block penetrates into the through hole of the spring bolt, and a driving inclined face is arranged on the special-shaped block, so that when the special-shaped block moves along with the electromagnetic telescopic rod, the driving inclined face can abut against the lower side wall of the through hole, the spring bolt retracts towards the long-strip-shaped base, and unlocking is achieved. On the contrary, the driving slope releases the lower side wall of the through hole, the spring bolt extends out of the long-strip-shaped base, and locking is achieved. The product is small in size and convenient to manufacture and assemble, the stroke and the magnetic attraction force are effectively reduced through the action of the inclined face, the spring bolt stretches out and draws back stably and reliably, and ideal usability and service life are obtained.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to an electromagnetic lock for use in vending machines. Background Technology

[0002] With technological advancements and intelligent development, automated vending machines have become increasingly common. Current vending machines typically use electromagnetic locks for locking and intelligent control. The working principle of an electromagnetic lock is based on electromagnets; it uses an electric current to generate magnetic force to lock or unlock the door. Common electromagnetic locks consist of a lock body, a locking rod extending from the lock body, and a latch directly connected to the extended end of the locking rod. This type of electromagnetic lock has a large stroke and requires significant magnetic force, resulting in a relatively large overall size and making it difficult to manufacture and assemble. Electromagnetic locks are also a core component for locking doors in automated vending machines, and especially for applications in dynamic environments, the lock body structure itself needs to be specifically designed for usability. Summary of the Invention

[0003] The purpose of this invention is to provide an electromagnetic lock with an optimized structure, which facilitates manufacturing and assembly, and achieves ideal usability and service life.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electromagnetic lock, which has the following characteristics:

[0006] A long strip base extending along a first direction, and a groove provided on the long strip base, the groove also extending along the first direction;

[0007] The latch is installed in the groove of the long base and can extend and retract within the long base. The extension and retraction direction of the latch is perpendicular to the first direction. A through hole is provided on the latch.

[0008] An electromagnetic telescopic rod is installed in a groove in a long base, and the telescopic direction of the electromagnetic telescopic rod is consistent with the first direction. The telescopic end of the electromagnetic telescopic rod is connected to a shaped block, which passes through the through hole of the lock tongue. A driving inclined surface is provided on the shaped block so that when the shaped block moves with the electromagnetic telescopic rod, the driving inclined surface can press against the lower side wall of the through hole, causing the lock tongue to retract towards the long base, thereby unlocking. Conversely, when the driving inclined surface releases the lower side wall of the through hole, the lock tongue extends out from the long base and returns to its original position, thereby locking.

[0009] A further aspect of the above solution is that the locking tongue is installed in the groove of the long base through a positioning seat. The positioning seat is embedded in the groove and has tongue slots and material passage slots that are perpendicularly intersecting and connected to each other. The locking tongue is inserted into the tongue slots, and the through hole of the locking tongue is connected to the material passage slot so that the irregular block can pass through the material passage slot and the through hole at the same time.

[0010] A further improvement in the above scheme is that the irregularly shaped block is a long strip and is set upright on its side, and the thickness of the irregularly shaped block matches the width of the feed trough.

[0011] A further improvement of the above scheme is that the lower side of the irregular block is provided with a V-shaped notch, and one side of the V-shaped notch forms a driving slope; during assembly, the V-shaped notch bridging the through hole.

[0012] The above solution further includes a raised limiting platform on the upper side of the irregular block, which is connected to the positioning seat to restrict the movement of the irregular block; the upper end face of the limiting platform forms a flat pressing surface, and the side of the limiting platform away from the electromagnetic telescopic rod is provided with a limiting inclined surface; the positioning seat is provided with a horizontal pressure plate and an inclined pressure plate, the lower side of the horizontal pressure plate is in contact with the flat pressing surface, and the inclined pressure plate and the limiting inclined surface support and restrict the movement of the irregular block.

[0013] A further aspect of the above solution is that the locking tongue is inserted into the tongue slot and supported by the first compression spring. When the driving inclined surface releases the lower side wall of the through hole, the first compression spring supports the locking tongue to extend from the long strip base, thereby achieving locking.

[0014] A further improvement of the above scheme is that the latch is flat, a through hole is opened in the middle of the latch, and two first compression springs are symmetrically arranged on the left and right sides of the through hole.

[0015] The above solution is further described in that the electromagnetic telescopic rod includes a magnetic head and a locking rod extending from the magnetic head. A second compression spring is sleeved on the locking rod, and the second compression spring pushes the locking rod to extend from the magnetic head. When the magnetic head is energized, it generates a magnetic force to pull the locking rod back, causing the driving inclined surface of the irregular block to press against the lower side wall of the through hole, causing the lock tongue to retract towards the long strip base, thereby unlocking.

[0016] A further aspect of the above scheme is that the electromagnetic telescopic rod is provided with an external wire, which passes through the inner bottom of the groove and runs along a pre-set groove on the lower bottom surface of the long base; the groove extends in a first direction.

[0017] This utility model provides an electromagnetic lock comprising a long base, a bolt, and an electromagnetic telescopic rod, wherein the extension and retraction direction of the bolt is perpendicular to that of the electromagnetic telescopic rod. The telescopic end of the electromagnetic telescopic rod is connected to a shaped block, which passes through a hole in the bolt. A driving ramp is provided on the shaped block. When the shaped block moves with the electromagnetic telescopic rod, the driving ramp presses against the lower wall of the hole, causing the bolt to retract towards the long base, thus unlocking. Conversely, when the driving ramp releases the lower wall of the hole, the bolt extends from the long base, thus locking. This utility model optimizes the product structure, resulting in a compact size that facilitates manufacturing and assembly. The ramp effectively reduces travel and magnetic force, ensuring stable and reliable bolt extension and retraction, achieving ideal usability and service life. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0019] Appendix Figure 2 for Figure 1 Another perspective structural diagram of the embodiment;

[0020] Appendix Figure 3 for Figure 1 A cross-sectional view of the internal structure of the embodiment;

[0021] Appendix Figure 4 for Figure 1 Schematic diagram of the structural breakdown of the embodiment;

[0022] Appendix Figure 5 for Figure 4 Another perspective illustration. Detailed Implementation

[0023] The following will further explain the concept, specific structure and technical effects of the utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the utility model.

[0024] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] See Figure 1 , 2Figures 3, 4, and 5 are schematic diagrams of a preferred embodiment of this utility model. This utility model relates to an electromagnetic lock, which has a long base 1, a latch 2, and an electromagnetic telescopic rod 3. The long base 1 extends along a first direction and has a groove 11 that also extends along the first direction. The latch 2 is installed in the groove 11 of the long base 1 and can extend and retract within the long base 1. The extension and retraction direction of the latch 2 is perpendicular to the first direction. The latch 2 has a through hole 21, which is an elongated hole, and the length direction of the through hole 21 is perpendicular to the first direction. The electromagnetic telescopic rod 3 is installed in the groove 11 of the elongated base 1, and the telescopic direction of the electromagnetic telescopic rod 3 is consistent with the first direction. The telescopic end of the electromagnetic telescopic rod 3 is connected to a shaped block 4, which passes through the through hole 21 of the latch 2. A driving inclined surface 41 is provided on the shaped block 4. When the shaped block 4 moves with the electromagnetic telescopic rod 3, the driving inclined surface 41 can press against the lower side wall of the through hole 21, causing the latch 2 to retract towards the elongated base 1, thereby unlocking. Conversely, when the driving inclined surface 41 releases the lower side wall of the through hole 21, the latch 2 extends out of the elongated base 1 and returns to its original position, thereby locking. By utilizing the inclined surface, the stroke and magnetic attraction force are effectively reduced. The product is compact, easy to manufacture and assemble, and the latch extension and retraction are stable and reliable, achieving ideal usability and service life.

[0026] Figure 1 , 2 As shown in Figures 3, 4, and 5, for ease of installation, the locking tongue 2 is installed in the groove 11 of the elongated base 1 via a positioning seat 5. The positioning seat 5 is embedded in the groove 11 and secured with screws, facilitating disassembly and maintenance. The positioning seat 5 has a tongue slot 51 and a material passage slot 52 that are perpendicularly intersecting and connected to each other. The locking tongue 2 is inserted into the tongue slot 51, and the through hole 21 of the locking tongue 2 is connected to the material passage slot 52, so that the irregularly shaped block 4 can pass through both the material passage slot 52 and the through hole 21 simultaneously. The irregularly shaped block 4 is an elongated strip and is set upright. The thickness of the irregularly shaped block 4 matches the width of the material passage slot 52, thereby effectively guiding the movement of the irregularly shaped block 4 and ensuring stable and reliable operation of the irregularly shaped block 4. In this embodiment, the material passage 52 is constructed in the form of an arch bridge hole, which surrounds and restricts the irregular block 4 with the inner bottom of the groove 11. That is, when the irregular block 4 passes through the material passage 52, the lower side of the irregular block 4 slides against the inner bottom surface of the groove 11.

[0027] In this embodiment, the lower side of the irregularly shaped block 4 is provided with a V-shaped notch 42, and one side of the V-shaped notch 42 forms a driving inclined surface 41. During assembly, the V-shaped notch 42 spans the through hole 21 to form an interlocking relationship, which also facilitates assembly and positioning. During assembly, the locking tongue 2 is first inserted into the tongue slot 51, the irregularly shaped block 4 passes through the through hole 21 of the locking tongue 2, and then the positioning seat 5 is fixed in the groove 11 of the long base 1. The upper side of the irregularly shaped block 4 is provided with a raised limiting platform 43, which is connected to the positioning seat 5 to restrict the movement of the irregularly shaped block 4. Furthermore, the upper surface of the limiting platform 43 forms a flat pressing surface 431, and the side of the limiting platform 43 away from the electromagnetic telescopic rod 3 is provided with a limiting inclined surface 432; the positioning seat 5 is provided with a horizontal pressure plate 53 and an inclined pressure plate 54. The lower side of the horizontal pressure plate 53 presses against the flat pressing surface 431, while the inclined pressure plate 54 and the limiting inclined surface 432 support and restrict the movement of the irregular block 4. In this embodiment, the horizontal pressure plate 53 and the inclined pressure plate 54 are respectively placed on both sides of the tongue groove 51, and the horizontal pressure plate 53 is close to the electromagnetic telescopic rod 3. The electromagnetic telescopic rod 3 includes a magnetic head 31 and a locking rod 32 extending from the magnetic head. A second compression spring 33 is sleeved on the locking rod 32, and the second compression spring 33 pushes the locking rod 32 to extend from the magnetic head. In this embodiment, the magnetic head 31 is square-shaped and embedded in the groove 11 of the elongated base 1, then locked with screws. The locking rod 32 is assembled on the magnetic head 31 and can extend and retract relative to it. After the second compression spring 33 is sleeved on the locking rod 32, one end of the second compression spring 33 supports the magnetic head 31, and the other end supports the radially protruding locking pin or step of the locking rod 32. The structure is simple and easy to manufacture and assemble. The outer end of the locking rod 32 is provided with a cutting groove so that the corresponding end of the irregular block 4 can be inserted. Then, a pin passes through the locking rod 32 and the irregular block 4. The through end of the pin is locked by a snap ring, thereby realizing the connection between the locking rod 32 and the irregular block 4, which is convenient for disassembly and maintenance and also ensures a stable connection.

[0028] When in operation, the magnetic head 31 generates a magnetic force that pulls the locking rod 32 back, causing the driving inclined surface 41 of the irregular block 4 to press against the lower side wall of the through hole 21, thus retracting the bolt 2 towards the elongated base 1 to unlock. Conversely, when the magnetic head 31 is de-energized, the second compression spring 33 pushes the locking rod 32 out of the magnetic head, driving the inclined surface 41 to release the lower side wall of the through hole 21, causing the bolt 2 to extend from the elongated base 1 to lock. When the irregular block 4 moves, it is guided by the feed chute 52. The lower side of the horizontal pressure plate 53 is in contact with the flat pressing surface 431, ensuring that the irregular block 4 has downward pressure, which is conducive to the stable movement of the irregular block 4 and the effective pressing of the driving inclined surface 41 against the lower side wall of the through hole 21. When the locking rod 32 extends, the movement of the irregular block 4 is restricted by the support of the inclined pressure plate 54 and the limiting inclined surface 432, which provides movement limit and effectively controls the positional relationship between the driving inclined surface 41 and the lower side wall of the through hole 21, which is conducive to subsequent unlocking actions, improves the timeliness, effectiveness and accuracy of unlocking, and is conducive to automated control.

[0029] In this embodiment, the latch 2 is inserted into the tongue slot 51 and supported by the first compression spring 6. When the driving inclined surface 41 releases the lower side wall of the through hole 21, the first compression spring 6 supports the latch 2 to extend from the elongated base 1, thus achieving locking. The latch 2 is flat, with a through hole 21 in the middle. There are two first compression springs 6, symmetrically arranged on the left and right sides of the through hole 21. The first compression spring 6 and the latch 2 are inserted into the tongue slot 51, which is simple in structure and easy to assemble and implement. The symmetrical arrangement of the first compression springs 6 provides stable support for the latch 2, ensuring accurate extension of the latch 2. In this embodiment, the inner bottom of the groove 11 is also provided with a corresponding avoidance part 13, which is directly opposite the latch 2 to provide avoidance when the latch 2 retracts, preventing collisions, avoiding noise, and effectively protecting the product.

[0030] In this embodiment, the electromagnetic telescopic rod 3 is provided with an externally connected wire 34. The wire 34 passes through the inner bottom of the groove 11 and runs along a pre-set wire groove 12 on the lower bottom surface of the elongated base 1. The wire groove 12 extends in a first direction so that the wire 34 can be led out of the elongated base 1 for external wiring. The pre-set wire groove 12 on the lower bottom surface of the elongated base 1 facilitates the concealment and routing of the wire 34 and also facilitates the installation of the elongated base 1.

[0031] This utility model provides an electromagnetic lock comprising a long base, a bolt, and an electromagnetic telescopic rod, wherein the extension and retraction direction of the bolt is perpendicular to that of the electromagnetic telescopic rod. The telescopic end of the electromagnetic telescopic rod is connected to a shaped block, which passes through a hole in the bolt. A driving ramp is provided on the shaped block. When the shaped block moves with the electromagnetic telescopic rod, the driving ramp presses against the lower wall of the hole, causing the bolt to retract towards the long base, thus unlocking. Conversely, when the driving ramp releases the lower wall of the hole, the bolt extends from the long base, thus locking. This utility model optimizes the product structure, resulting in a compact size that facilitates manufacturing and assembly. The ramp effectively reduces travel and magnetic force, ensuring stable and reliable bolt extension and retraction, achieving ideal usability and service life.

[0032] While the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the same structure and operation as described above and the accompanying drawings. For those skilled in the art, many equivalent improvements and variations can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and variations should all fall within the scope of protection claimed by the present invention.

Claims

1. An electromagnetic lock, characterized in that, have: A long strip base (1) extending in a first direction, and a groove (11) provided on the long strip base (1), which also extends in the first direction; The latch (2) is installed in the groove (11) of the long base (1) and can extend and retract in the long base (1). The extension and retraction direction of the latch (2) is perpendicular to the first direction. A through hole (21) is provided on the latch (2). An electromagnetic telescopic rod (3) is installed in the groove (11) of the long base (1), and the telescopic direction of the electromagnetic telescopic rod (3) is consistent with the first direction; the telescopic end of the electromagnetic telescopic rod (3) is connected to a shaped block (4), which is inserted into the through hole (21) of the latch (2), and a driving inclined surface (41) is provided on the shaped block (4). When the shaped block (4) moves with the electromagnetic telescopic rod (3), the driving inclined surface (41) can press against the lower side wall of the through hole (21), so that the latch (2) retracts back to the long base (1) to unlock; conversely, when the driving inclined surface (41) releases the lower side wall of the through hole (21), the latch (2) extends out from the long base (1) and returns to its original position to lock.

2. An electromagnetic lock according to claim 1, characterized in that, The locking tongue (2) is installed in the groove (11) of the long base (1) through the positioning seat (5). The positioning seat (5) is embedded in the groove (11). The positioning seat (5) is provided with tongue slots (51) and material passage slots (52) that are perpendicularly intersecting and connected to each other. The locking tongue (2) is inserted into the tongue slot (51), and the through hole (21) of the locking tongue (2) is connected to the material passage slot (52) so that the irregular block (4) can pass through the material passage slot (52) and the through hole (21) at the same time.

3. An electromagnetic lock according to claim 2, characterized in that, The irregular block (4) is a long strip and is set on its side. The thickness of the irregular block (4) matches the width of the feed trough (52).

4. An electromagnetic lock according to claim 3, characterized in that, The irregular block (4) has a V-shaped notch (42) on its lower side, and one side of the V-shaped notch (42) forms a driving slope (41); during assembly, the V-shaped notch (42) bridging the through hole (21).

5. An electromagnetic lock according to claim 3, characterized in that, The upper side of the irregular block (4) is provided with a raised limiting platform (43), which is connected to the positioning seat (5) to restrict the movement of the irregular block (4).

6. An electromagnetic lock according to claim 5, characterized in that, The upper end face of the limiting platform (43) forms a flat pressing surface (431), and the side of the limiting platform (43) away from the electromagnetic telescopic rod (3) is provided with a limiting inclined surface (432); the positioning seat (5) is provided with a horizontal pressure plate (53) and an inclined pressure plate (54). The lower side of the horizontal pressure plate (53) is in contact with the flat pressing surface (431), while the inclined pressure plate (54) and the limiting inclined surface (432) support and restrict the movement of the irregular block (4).

7. An electromagnetic lock according to claim 2, characterized in that, The locking tongue (2) is inserted into the tongue slot (51) and supported by the first compression spring (6). When the driving inclined surface (41) releases the lower side wall of the through hole (21), the first compression spring (6) supports the locking tongue (2) to extend from the long strip base (1) to achieve locking.

8. An electromagnetic lock according to claim 7, characterized in that, The latch (2) is flat, and a through hole (21) is opened in the middle of the latch (2). There are two first compression springs (6) and they are symmetrically arranged on the left and right sides of the through hole (21).

9. An electromagnetic lock according to claim 1, characterized in that, The electromagnetic telescopic rod (3) includes a magnetic head (31) and a locking rod (32) extending from the magnetic head. A second compression spring (33) is sleeved on the locking rod (32). The second compression spring (33) pushes the locking rod (32) to extend from the magnetic head. When the magnetic head (31) is energized, it generates a magnetic force to pull the locking rod (32) back, so that the driving inclined surface (41) of the irregular block (4) presses against the lower side wall of the through hole (21), and the locking tongue (2) retracts to the long base (1) to unlock.

10. An electromagnetic lock according to claim 9, characterized in that, The electromagnetic telescopic rod (3) is provided with an external wire (34), which passes through the inner bottom of the groove (11) and runs along the pre-set wire groove (12) on the lower bottom surface of the long base (1); the wire groove (12) extends in the first direction.

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