Attraction iron plate structure of universal rotation magnetic lock

Abstract

The utility model discloses an attraction iron plate structure of a universal rotation magnetic lock, and solves the technical problem that a fastening screw prizes an iron plate due to the pulling force in the inclined direction. The device comprises a magnetic lock body, an iron plate and a fastening screw, the fastening screw comprises a nut part and a screw rod part, a supporting ring is arranged on the side, away from the magnetic lock body, of the iron plate, the screw rod part penetrates out of the supporting ring, a rotating spherical surface is arranged on the nut part, and the magnetic lock body is arranged on the rotating spherical surface. A guide spherical surface matched with the rotating spherical surface is arranged on the inner side wall of the supporting ring so that the fastening screw and the iron plate can rotate relative to each other in a universal mode, a gasket used for abutting against a door plate is fixedly arranged on the screw rod part in a sleeving mode, and the gasket is connected with the supporting ring through an elastic supporting part. The magnetic lock can reduce the risk that the iron plate is pried by a fastening screw, and the use stability of the magnetic lock is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic locks, and in particular relates to a universal rotating magnetic lock attracting iron plate structure. Background Art

[0002] Magnetic lock, also called electromagnetic lock, is a type of door lock and is widely used in public places such as airports, stations, businesses, and offices.

[0003] The magnetic lock in the related art usually includes a magnetic lock body and a relay plate. The relay plate is fixed to the door by fastening screws, and the magnetic lock body is fixed to the door frame or other building facilities. When the door is closed, the relay plate contacts the magnetic lock body and is magnetically fixed.

[0004] When the door is rotated to open, the force direction of the fastening screw is not along its axial direction, that is, the fastening screw will be subjected to tension in the oblique direction. Since the fastening screw is rigidly fixed to the door, the fastening screw will pry the attracted iron plate, causing problems such as opening or reduced tension. At the same time, such problems may also occur due to factors such as door deformation or unreasonable installation, thus affecting the stability of the magnetic lock, which needs to be improved. Utility Model Content

[0005] In order to solve all or part of the above problems, the purpose of the utility model is to provide a universal rotating magnetic lock with an iron plate suction structure, which can reduce the risk of the fastening screws prying the iron plate and improve the stability of the magnetic lock.

[0006] The utility model provides a universal rotating magnetic lock iron plate suction structure, comprising a magnetic lock body, a relay iron plate and a fastening screw, the fastening screw comprising a nut portion and a screw portion, a support ring is arranged on the side of the relay iron plate away from the magnetic lock body, the screw portion passes through the support ring, a rotating spherical surface is arranged on the nut portion, and a guide spherical surface matching the rotating spherical surface is arranged on the inner side wall of the support ring, so that the fastening screw and the relay iron plate can be universally rotated relative to each other, a washer for abutting against a door panel is provided on the fixed sleeve of the screw portion, and the washer is connected to the support ring through an elastic support portion.

[0007] Optionally, an annular relief groove is provided at the connection position between the screw portion and the nut portion to increase the rotation angle of the screw portion.

[0008] Optionally, the support portion includes a compression spring, which is sleeved on the screw portion, and one end of the compression spring is connected to the washer, and the other end is connected to the support ring.

[0009] Optionally, the outer diameter of the compression spring on one side close to the washer is smaller than the outer diameter of the other side thereof.

[0010] Optionally, elastic positioning parts are respectively provided at two end positions of the relay iron plate on a side away from the magnetic lock body, and the positioning parts are used to be inserted into positioning holes on the door panel.

[0011] Optionally, the positioning portion includes a positioning spring, an end of the positioning spring is fixed to the relay iron plate, and an axial center line of the positioning spring is perpendicular to the relay iron plate.

[0012] Optionally, the outer edge contour of the support ring is rectangular, and the middle position of the support ring is arched outward, so that the inner surface of the support ring forms the guide spherical surface.

[0013] Optionally, the support ring is detachably connected to the relay iron plate.

[0014] Optionally, two countersunk screws are symmetrically arranged on the support ring, and the two countersunk screws are respectively threadedly connected to the relay iron plate.

[0015] It can be seen from the above technical solution that the universal rotating magnetic lock iron plate suction structure provided by the utility model has the following advantages:

[0016] The relay plate and door panel in the device adopt a universally rotatable soft connection structure, so that the fastening screw and the relay plate can rotate relative to each other in the direction of the pulling force, so that the force direction of the relay plate remains perpendicular to the direction of the magnetic lock body. This can not only reduce the risk of the fastening screw prying the relay plate, but also avoid problems such as opening or reduction of pulling force, thereby improving the stability of the magnetic lock.

[0017] Other features and advantages of the present invention will be described in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 A side view of an embodiment of the utility model;

[0021] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0022] Figure 4 It is an exploded view of an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Magnetic lock body; 2. Relay plate; 3. Fastening screw; 31. Nut part; 32. Screw part; 33. Washer; 34. Gap groove; 4. Support ring; 5. Rotating spherical surface; 6. Guide spherical surface; 7. Support part; 71. Compression spring; 8. Positioning part; 81. Positioning spring; 9. Countersunk screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other arbitrarily without conflict.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model is shown in the embodiment, which discloses a universal rotating magnetic lock attracting iron plate structure, including a magnetic lock body 1 and a relay iron plate 2, on which a fastening screw 3 is arranged. The fastening screw 3 includes a nut part 31 and a screw part 32, on which a washer 33 is fixedly sleeved, and when the screw part 32 is threadedly connected with the door panel and the washer 33 is in contact with the door panel, the relay iron plate 2 is installed in place.

[0027] In one embodiment, Figure 3 , Figure 4 As shown, a support ring 4 is provided on the side of the relay plate 2 facing away from the magnetic lock body 1, and the screw portion 32 passes through the support ring 4, and the inner diameter of the support ring 4 is smaller than the outer diameter of the nut portion 31. A rotating spherical surface 5 is integrally formed on the nut portion 31, and a guide spherical surface 6 matching the rotating spherical surface 5 is provided on the inner side wall of the support ring 4, so that the fastening screw 3 and the relay plate 2 can rotate relative to each other in a universal direction. At the same time, the washer 33 is connected to the support ring 4 through an elastic support portion 7 to achieve elastic support for the relay plate 2.

[0028] The universal rotating magnetic lock in this embodiment has an iron plate structure, and the fastening screw 3 and the relay iron plate 2 can rotate relative to each other in a universal direction, that is, the relay iron plate 2 and the door panel are softly connected. When the door panel is rotated to open, the fastening screw 3 and the relay iron plate 2 can rotate relative to each other in the direction of the pulling force, so that the force direction of the relay iron plate 2 remains in the direction perpendicular to the magnetic lock body 1, which can reduce the risk of the fastening screw 3 prying the relay iron plate 2 and avoid problems such as opening or tension reduction, thereby improving the stability of the magnetic lock.

[0029] In this embodiment, the outer edge contour of the support ring 4 is rectangular, and the middle position of the support ring 4 is arched outward, and the inner surface of the support ring 4 forms a guide spherical surface 6. This design can increase the contact area between the support ring 4 and the relay iron plate 2, thereby improving the connection stability between the two.

[0030] In one embodiment, Figure 3 , Figure 4 As shown, an annular relief groove 34 is provided at the connection position between the screw portion 32 and the nut portion 31 to increase the rotation angle of the screw portion 32 , thereby increasing the relative swing angle of the fastening screw 3 and the relay plate 2 .

[0031] In one embodiment, Figure 3 , Figure 4 As shown, the support portion 7 includes a compression spring 71, which is sleeved on the screw portion 32, and one end of the compression spring 71 is fixedly connected to the washer 33, and the other end is fixedly connected to the support ring 4. At the same time, the outer diameter of the compression spring 71 close to the washer 33 is smaller than the outer diameter of the other side, that is, the compression spring 71 is arranged in a tapered shape, which can not only ensure the elastic support for the relay iron plate 2, but also improve the guiding effect, so that the fastening screw 3 and the relay iron plate 2 can swing smoothly relative to each other, and at the same time, it can provide a good restoring force for the reset of the relay iron plate 2.

[0032] In one embodiment, Figure 1 , Figure 2 As shown, elastic positioning parts 8 are respectively provided at the two ends of the relay plate 2 away from the magnetic lock body 1, and the positioning parts 8 are used to be inserted into the positioning holes on the door panel, which can not only realize the rapid determination of the installation position of the relay plate 2, but also ensure the smooth resetting of the relay plate 2.

[0033] In one embodiment, Figure 1 , Figure 2 As shown, the positioning portion 8 includes a positioning spring 81, the end of the positioning spring 81 is fixed on the relay plate 2, and the axis of the positioning spring 81 is perpendicular to the relay plate 2, thereby achieving good positioning and restoring capabilities.

[0034] In one embodiment, Figure 1 , Figure 2 As shown, the support ring 4 is detachably connected to the relay plate 2, and two countersunk screws 9 are symmetrically arranged on the support ring 4, and the two countersunk screws 9 are respectively threadedly connected to the relay plate 2 to facilitate the production and assembly of the magnetic lock by the staff.

[0035] It can be seen from the above process that the relay plate 2 and the door panel in the device adopt a universally rotatable soft connection structure, so that the fastening screw 3 and the relay plate 2 can rotate relative to each other along the direction of the pulling force, so that the force direction of the relay plate 2 is maintained in a direction perpendicular to the magnetic lock body 1, which can reduce the risk of the fastening screw 3 prying the relay plate 2, and avoid problems such as opening or tension reduction, thereby improving the stability of the magnetic lock. At the same time, the compression spring 71 and the positioning spring 81 can also provide a stable restoring elastic force for the reset of the relay plate 2, so that the relay plate 2 can be reset smoothly, further improving the stability of the magnetic lock.

[0036] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should have the common meanings understood by technicians in the field to which the present invention belongs.

[0037] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and description of the utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A universal rotating magnetic lock with an iron plate structure, comprising a magnetic lock body (1), an iron plate (2) and a fastening screw (3), characterized in that: The fastening screw (3) comprises a nut portion (31) and a screw portion (32); a support ring (4) is provided on the side of the relay plate (2) facing away from the magnetic lock body (1); the screw portion (32) passes through the support ring (4); a rotating spherical surface (5) is provided on the nut portion (31); a guide spherical surface (6) matching the rotating spherical surface (5) is provided on the inner side wall of the support ring (4) so ​​that the fastening screw (3) and the relay plate (2) can rotate relative to each other in universal directions; a washer (33) for abutting against a door panel is fixedly sleeved on the screw portion (32); and the washer (33) is connected to the support ring (4) via an elastic support portion (7).

2. The universal rotating magnetic lock iron plate suction structure according to claim 1 is characterized in that: An annular clearance groove (34) is provided at the connection position between the screw portion (32) and the nut portion (31) to increase the rotation angle of the screw portion (32).

3. The universal rotating magnetic lock iron plate suction structure according to claim 1 is characterized in that: The support portion (7) comprises a compression spring (71), which is sleeved on the screw portion (32), and one end of the compression spring (71) is connected to the washer (33) and the other end is connected to the support ring (4).

4. The universal rotating magnetic lock iron plate suction structure according to claim 3 is characterized in that: The outer diameter of the compression spring (71) on one side close to the washer (33) is smaller than the outer diameter of the other side.

5. The universal rotating magnetic lock iron plate suction structure according to claim 1 is characterized in that: Elastic positioning parts (8) are respectively provided at the two ends of the relay iron plate (2) on the side away from the magnetic lock body (1), and the positioning parts (8) are used to be inserted into the positioning holes on the door panel.

6. The universal rotating magnetic lock iron plate suction structure according to claim 5 is characterized in that: The positioning portion (8) comprises a positioning spring (81), the end of which is fixed on the relay plate (2), and the axis of the positioning spring (81) is perpendicular to the relay plate (2).

7. The universal rotating magnetic lock iron plate suction structure according to claim 1 is characterized in that: The outer edge profile of the support ring (4) is rectangular, and the middle portion of the support ring (4) is arched outwards, so that the inner surface of the support ring (4) forms the guide spherical surface (6).

8. The universal rotating magnetic lock iron plate suction structure according to claim 7 is characterized in that: The support ring (4) is detachably connected to the relay iron plate (2).

9. The universal rotating magnetic lock iron plate suction structure according to claim 8 is characterized in that: Two countersunk screws (9) are symmetrically arranged on the support ring (4), and the two countersunk screws (9) are respectively threadedly connected to the relay plate (2).

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