Electromagnetic lock

Abstract

The utility model relates to the technical field of electromagnetic locks, and provides an electromagnetic lock which comprises an electromagnetic lock body, a first connecting plate is fixedly connected to the top of the electromagnetic lock body, a sliding rod is slidably connected to the interior of the first connecting plate, and by arranging a sliding block, when the position of the electromagnetic lock needs to be adjusted after the electromagnetic lock is installed, a threaded rod in the sliding block can be screwed out, and the sliding rod is screwed out; then the two sets of sliding blocks are controlled to slide in the mounting plate to adjust the position of the electromagnetic lock body, after adjustment is completed, a screw rod can be screwed into a screw hole in the corresponding position, and therefore the purposes of fixing the sliding blocks and adjusting the electromagnetic lock body are achieved, and when it is found that the electromagnetic lock body cannot be well attached to a door body after installation is completed, the electromagnetic lock body is fixed. The first connecting plate can be controlled to slide along the surface of the sliding rod, so that the electromagnetic lock body is pushed forwards to be attached to the door body, after adjustment is completed, the locking nut is tightened to be tightly attached to the bottom of the first connecting plate, and the first connecting plate is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic locks, in particular to electromagnetic locks. Background Art

[0002] The design of an electromagnetic lock (or magnetic lock) is the same as that of an electromagnet. It uses the principle of electro-magnetic generation. When an electric current passes through a silicon steel sheet, the electromagnetic lock will generate a strong suction force to tightly hold an adsorption iron plate to achieve the effect of locking the door. As long as a small current passes through, the electromagnetic lock will generate a great magnetic force. After the access control system that controls the power supply of the electromagnetic lock correctly identifies the personnel, the power is cut off, and the electromagnetic lock loses its suction force, then the door can be opened.

[0003] However, when many current electromagnetic locks are in use, once they are installed, their positions become non-adjustable. When the electromagnetic lock cannot fit well with the door body, it can only be disassembled and reinstalled, which brings great trouble to the installation work.

[0004] In view of this, the present utility model proposes an electromagnetic lock. Content of the Utility Model

[0005] The present utility model proposes an electromagnetic lock, which solves the problem in the related art that when many current electromagnetic locks are in use, once they are installed, their positions become non-adjustable. When the electromagnetic lock cannot fit well with the door body, it can only be disassembled and reinstalled, which brings great trouble to the installation work.

[0006] The technical solution of the present utility model is as follows: an electromagnetic lock, including an electromagnetic lock body, a first connecting plate is fixedly connected to the top of the electromagnetic lock body, a sliding rod is slidably connected inside the first connecting plate, a locking nut is threadedly connected to the surface of the sliding rod, a second connecting plate is fixedly connected to the top of the sliding rod, two groups of sliders are fixedly connected to the top of the second connecting plate, an installation plate is slidably connected to the surfaces of the two groups of sliders, screw holes are provided on the inner side wall of the installation plate, and screw rods embedded into the screw holes are threadedly connected inside the two groups of sliders, and installation holes are provided on the top of the installation plate.

[0007] Preferably, a buffer strip is fixedly connected to the surface of the electromagnetic lock body, a lighting lamp is fixedly connected to the bottom of the electromagnetic lock body, a protective frame fixedly connected to the bottom of the electromagnetic lock body is provided on one side of the lighting lamp, and heat dissipation holes are provided on both sides of the protective frame.

[0008] Preferably, a linear chute adapted to the size of the sliding rod is provided inside the first connecting plate, and the first connecting plate forms a fixed structure through the locking nut.

[0009] Preferably, the installation plate is of a "U" - shaped structure, and the sliders are in close fit with the installation plate.

[0010] Preferably, a plurality of groups of the screw holes are arranged at equal intervals in a straight line, and the distance between two groups of the screw holes is the same as the distance between two screw rods.

[0011] Preferably, the buffer strip is made of rubber, and the length of the buffer strip is the same as that of the electromagnetic lock body.

[0012] Preferably, four groups of the lighting lamps are arranged at equal intervals at the bottom of the electromagnetic lock body.

[0013] Preferably, the protection frame is made of transparent plastic board, and the four groups of lighting lamps are completely wrapped by the protection frame.

[0014] The working principle and beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, by setting the slider, after the electromagnetic lock is installed, when its position needs to be adjusted, the screw rod inside the slider can be screwed out, and then the two sliders are controlled to slide inside the mounting plate to adjust the position of the electromagnetic lock body. After the adjustment is completed, the screw rod can be screwed into the screw hole at the corresponding position to fix the slider, so as to achieve the purpose of adjusting the electromagnetic lock body. When it is found that the electromagnetic lock body cannot fit well with the door body after installation, the first connecting plate can be controlled to slide along the surface of the sliding rod, so as to push the electromagnetic lock body forward to make it fit with the door body. After the adjustment is completed, tighten the locking nut to make it fit tightly with the bottom of the first connecting plate to fix the first connecting plate.

[0016] 2. In the present utility model, by setting the buffer strip, the buffer strip is made of rubber, which can play a certain buffering effect when the door body collides with the electromagnetic lock body, avoid the door body hitting the electromagnetic lock body suddenly and play a shock absorption role. The lighting lamp arranged at the bottom of the electromagnetic lock body can illuminate the dark area, providing convenience for people to enter and exit the door, and the protection frame can play a protective role for the lighting lamp to avoid the lighting lamp being damaged by impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural schematic diagram of the slider of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the sliding rod of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the heat dissipation hole of the present utility model.

[0022] In the figure: 1. Electromagnetic lock body; 2. First connecting plate; 3. Slide bar; 4. Locking nut; 5. Second connecting plate; 6. Mounting plate; 7. Screw hole; 8. Slide block; 9. Screw rod; 10. Buffer strip; 11. Lighting lamp; 12. Protection frame; 13. Heat dissipation hole; 14. Mounting hole. Detailed implementation mode

[0023] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. Embodiment 1

[0024] The preferred embodiment of the electromagnetic lock provided by the present invention is as Figures 1 to 4 shown: The electromagnetic lock includes an electromagnetic lock body 1. A first connecting plate 2 is fixedly connected to the top of the electromagnetic lock body 1. A slide bar 3 is slidably connected inside the first connecting plate 2. A locking nut 4 is threadedly connected to the surface of the slide bar 3. The top of the slide bar 3 is fixedly connected to a second connecting plate 5. Two groups of slide blocks 8 are fixedly connected to the top of the second connecting plate 5. An installation plate 6 is slidably connected to the surfaces of the two groups of slide blocks 8. A screw hole 7 is provided on the inner side wall of the installation plate 6. A screw rod 9 that is threaded into the screw hole 7 is threadedly connected inside the two groups of slide blocks 8. Mounting holes 14 are provided on the top of the installation plate 6.

[0025] In this embodiment, a linear chute adapted to the size of the slide bar 3 is provided inside the first connecting plate 2. The first connecting plate 2 forms a fixed structure through the locking nut 4. By controlling the first connecting plate 2 to slide along the surface of the slide bar 3, the electromagnetic lock body 1 is pushed forward to make it fit with the door body. After the adjustment is completed, tighten the locking nut 4 to make it closely fit with the bottom of the first connecting plate 2, and fix the first connecting plate 2.

[0026] In this embodiment, the installation plate 6 is of a "U" - shaped structure, and the slide blocks 8 are closely attached to the installation plate 6. After the electromagnetic lock is installed, when its position needs to be adjusted, the screw rod 9 inside the slide block 8 can be unscrewed, and then the two groups of slide blocks 8 are controlled to slide inside the installation plate 6 to adjust the position of the electromagnetic lock body 1.

[0027] In this embodiment, a number of screw holes 7 are arranged in a linear and equidistant manner. The distance between the two groups of screw holes 7 is the same as the distance between the two groups of screw rods 9. After the position of the slide block 8 is adjusted, the screw rod 9 can be screwed into the screw hole 7 at the corresponding position to fix the slide block 8. Embodiment 2

[0028] On the basis of Embodiment 1, the preferred embodiment of the electromagnetic lock provided by the present invention is asFigures 1 to 4 As shown in the figure: A buffer strip 10 is fixedly connected to the surface of the electromagnetic lock body 1. A lighting lamp 11 is fixedly connected to the bottom of the electromagnetic lock body 1. One side of the lighting lamp 11 is provided with a protective frame 12 fixedly connected to the bottom of the electromagnetic lock body 1. Heat dissipation holes 13 are provided on both sides of the protective frame 12.

[0029] In this embodiment, the buffer strip 10 is made of rubber, and the length of the buffer strip 10 is the same as that of the electromagnetic lock body 1. By setting the buffer strip 10 made of rubber, it can play a certain buffering effect when the door body collides with the electromagnetic lock body 1.

[0030] In this embodiment, four groups of lighting lamps 11 are equidistantly arranged at the bottom of the electromagnetic lock body 1. The lighting lamps 11 arranged at the bottom of the electromagnetic lock body 1 can illuminate the dark area, providing convenience for people to enter and exit the door.

[0031] In this embodiment, the protective frame 12 is made of transparent plastic board, and the protective frame 12 completely wraps the four groups of lighting lamps 11, and the protective frame 12 can play a protective role for the lighting lamps 11 to prevent the lighting lamps 11 from being damaged by impact.

[0032] The working principle and usage process of the present utility model: First, the electromagnetic lock body 1 is installed on the wall through the mounting plate 6 and the mounting hole 14 to realize the fixation of the electromagnetic lock body 1. After the electromagnetic lock is installed, when its position needs to be adjusted, the screw rod 9 inside the slider 8 can be screwed out, and then the two groups of sliders 8 are controlled to slide inside the mounting plate 6 to adjust the position of the electromagnetic lock body 1. After the adjustment is completed, the screw rod 9 can be screwed into the screw hole 7 at the corresponding position to realize the fixation of the slider 8 and achieve the purpose of adjusting the electromagnetic lock body 1. When it is found that the electromagnetic lock body 1 cannot fit well with the door body after installation, the first connecting plate 2 can be controlled to slide along the surface of the sliding rod 3, so as to push the electromagnetic lock body 1 forward to make it fit with the door body. After the adjustment is completed, the locking nut 4 is tightened to make it closely fit with the bottom of the first connecting plate 2 to fix the first connecting plate 2.

[0033] By setting the buffer strip 10 made of rubber, it can play a certain buffering effect when the door body collides with the electromagnetic lock body 1, avoiding the door body from suddenly hitting the electromagnetic lock body 1 to play a shock-absorbing role. The lighting lamps 11 arranged at the bottom of the electromagnetic lock body 1 can illuminate the dark area, providing convenience for people to enter and exit the door, and the protective frame 12 can play a protective role for the lighting lamps 11 to prevent the lighting lamps 11 from being damaged by impact.

[0034] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. Electromagnetic lock, comprising an electromagnetic lock body (1), characterized in that, A first connecting plate (2) is fixedly connected to the top of the electromagnetic lock body (1). A sliding rod (3) is slidably connected inside the first connecting plate (2). A locking nut (4) is threadedly connected to the surface of the sliding rod (3). A second connecting plate (5) is fixedly connected to the top of the sliding rod (3). Two sets of sliders (8) are fixedly connected to the top of the second connecting plate (5). An installation plate (6) is slidably connected to the surfaces of the two sets of sliders (8). A screw hole (7) is provided on the inner side wall of the installation plate (6). Two sets of screws (9) that are threadedly connected inside the two sets of sliders (8) and inserted into the screw hole (7) are provided. An installation hole (14) is provided on the top of the installation plate (6).

2. The electromagnetic lock according to claim 1, characterized in that, A buffer strip (10) is fixedly connected to the surface of the electromagnetic lock body (1). A lighting lamp (11) is fixedly connected to the bottom of the electromagnetic lock body (1). A protective frame (12) fixedly connected to the bottom of the electromagnetic lock body (1) is provided on one side of the lighting lamp (11). Heat dissipation holes (13) are provided on both sides of the protective frame (12).

3. The electromagnetic lock according to claim 1, characterized in that A linear chute adapted to the size of the sliding rod (3) is provided inside the first connecting plate (2). The first connecting plate (2) forms a fixed structure through the locking nut (4).

4. The electromagnetic lock according to claim 1, characterized in that, The installation plate (6) has a "U" - shaped structure, and the slider (8) is in close fit with the installation plate (6).

5. The electromagnetic lock according to claim 1, wherein, The screw holes (7) are arranged in a linear and equidistant manner in several groups, and the distance between the two sets of screw holes (7) is the same as the distance between the two sets of screws (9).

6. The electromagnetic lock according to claim 2, characterized in that, The buffer strip (10) is made of rubber, and the length of the buffer strip (10) is the same as that of the electromagnetic lock body (1).

7. The electromagnetic lock according to claim 2, characterized in that, Four groups of lighting lamps (11) are equidistantly arranged at the bottom of the electromagnetic lock body (1).

8. The electromagnetic lock according to claim 2, wherein The protective frame (12) is a transparent plastic plate, and the protective frame (12) completely wraps the four groups of lighting lamps (11).

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