Electromagnetic safety switch with improved structure

Abstract

The utility model discloses an electromagnetic safety switch with an improved structure. The electromagnetic safety switch comprises switch equipment, a mounting plate, a connecting piece and a buffer structure, when the door plate is closed and rotates, the mounting plate is driven to enable the connecting piece to rotate and to be in butt joint with the switch equipment, then the connecting piece is in contact with the convex part on the buffer plate and pushes the buffer plate to enable the rotating block to rotate along the surface of the fixed rod, and at the moment, the torsion spring is stressed to deform to generate elastic force; at the moment, the buffer plate rotates clockwise, the right end of the buffer plate rotating clockwise presses downwards and is attached to the surface of the connecting piece, under the action of friction force, the connecting piece can be buffered and decelerated, the situation that the mounting plate and the connecting piece directly impact the switch equipment is effectively avoided, and the switch equipment can be buffered and protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic safety switch technical field, concretely is an improved structure electromagnetic safety switch. BACKGROUND

[0002] Electromagnetic safety switch, by name is the switch controlled with electromagnet, that is the combination of electromagnet and switch. When electromagnet coil is electrified and produces electromagnetic attraction, movable core pushes or pulls switch contact to close, thereby connects the controlled circuit. Electromagnetic switch has wide application in each industry, and the most common is the contactor in industrial field.

[0003] The prior art CN111247614A discloses a safety switch for controlling access to an industrial machine or facility, comprising: a switch device (2) associated with a fixed part (F) of an access (B) to be controlled and having a switch arrangement operatively connected to one or more control and / or service circuits of the facility to control the facility.

[0004] The above-mentioned patent or existing electromagnetic safety switch has the following problems:

[0005] The existing electromagnetic safety switch is inserted into the switch device when the door plate is closed. Sometimes, the installation plate and the connecting piece may hit the switch device when the door is closed with great force. Long-term impact may cause damage to the switch device. INVENTION CONTENTS

[0006] The utility model discloses an improved structure electromagnetic safety switch to solve the problems in the above background.

[0007] In order to achieve the above-mentioned purpose, the utility model takes the following technical scheme: an improved structure electromagnetic safety switch, comprising a switch device installed on the door frame, an installation plate installed on the door plate, and a connecting piece provided on the installation plate, the switch device is provided with a buffer structure, the buffer structure comprises a fixed frame, the fixed frame is provided with a screw rod seat, the inside of the fixed frame is provided with a fixed rod, the fixed rod is connected with a rotating block, the surface of the fixed rod is connected with a torsion spring, the torsion spring is connected with the rotating block, the lower end of the rotating block is provided with a buffer plate, and the lower end of the buffer plate is provided with a protruding part.

[0008] Preferably, the protruding part protrudes from the bottom end surface of the buffer plate, and the protruding part is a circular arc surface.

[0009] Preferably, the left end of the buffer plate is provided with an inclined surface, and the protruding part is located above the buffer plate.

[0010] Preferably, the right end of the bottom end face of the buffer plate is provided with a buffer pressure pad, and the surface of the buffer pressure pad is a circular arc surface.

[0011] Preferably, the buffer plate rotates an angle of three degrees under the action of the protruding part.

[0012] Preferably, the inside of the fixed frame is provided with a baffle, and the buffer plate is attached to the baffle under the action of the torsional spring.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] When the door plate is closed and rotated, the mounting plate is driven to rotate the connecting piece, and the connecting piece is connected with the switch device, then the connecting piece is in contact with the protruding part on the buffer plate, and the buffer plate is pushed, so that the rotating block rotates along the surface of the fixed rod, at this time, the torsional spring is deformed under stress to generate elastic force, at this time, the buffer plate rotates clockwise, the right end of the clockwise rotating buffer plate is pressed downward and attached to the surface of the connecting piece, under the action of friction force, the connecting piece can be buffered and slowed down, effectively avoiding that the mounting plate and the connecting piece directly impact the switch device, and the switch device can be buffered and protected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a front view structural schematic view of the utility model;

[0017] Figure 3 It is a fixed frame structural schematic view of the utility model;

[0018] Figure 4 It is a fixed frame front view cross section structural schematic view of the utility model.

[0019] In the drawing: switch device-1, mounting plate-2, connecting piece-3, buffer structure-4, fixed frame-41, screw rod base-42, fixed rod-43, rotating block-44, torsional spring-45, buffer plate-46, protruding part-47, buffer pressure pad-48, baffle-49. DETAILED DESCRIPTION

[0020] In order to further explain the technical scheme of the utility model, the following specific embodiments are described in detail.

[0021] Please refer to Figure 1 and Figure 2The utility model provides an improved structure electromagnetic safety switch, including the switch equipment 1 of installation on the door frame, install the mounting plate 2 of door board on and be provided with connecting piece 3 on mounting plate 2, connecting piece 3 will be opposite with switch equipment 1 after the door board is closed, be provided with buffer structure 4 on switch equipment 1.

[0022] Please refer to Figure 2 、 Figure 3 and Figure 4 The utility model provides an improved structure electromagnetic safety switch, buffer structure 4 includes fixed frame 41, the fixed frame 41 is integrally formed with screw rod seat 42, the screw rod seat 42 is attached to switch equipment 1, and buffer structure 4 is realized by the bolt connection screw rod seat 42 and switch equipment 1 to fixed frame 41 is fixed on switch equipment 1 on;

[0023] The inside of fixed frame 41 is integrally formed with fixed rod 43, the fixed rod 43 is rotatably connected with rotating block 44, and torsional spring 45 is fixed on the surface of fixed rod 43, one end of torsional spring 45 is connected with rotating block 44, the other end is fixed on fixed rod 43, the lower end of rotating block 44 is integrally formed with buffer plate 46, the lower end of buffer plate 46 is integrally formed with protruding portion 47;

[0024] Protruding portion 47 protrudes from the bottom end surface of buffer plate 46, and protruding portion 47 is arc, so that when protruding portion 47 contacts connecting piece 3, buffer plate 46 can be better lifted and rotated; The left end of buffer plate 46 is provided with an inclined surface, and the protruding portion 47 is located above the buffer plate 46, which can better frictionally connect the connecting piece 3. The right end of the bottom end surface of the buffer plate 46 is integrally formed with a buffer pad 48, and the surface of the buffer pad 48 is arc, which can better press and adhere to the connecting piece 3. The rotating angle of the buffer plate 46 under the action of the protruding portion 47 is three degrees, which will not excessively push the connecting piece 3, causing the connecting piece 3 and the switch equipment 1 to be unable to connect.

[0025] The inside of fixed frame 41 is provided with a baffle 49, and the buffer plate 46 will be attached to the baffle 49 under the action of the torsional spring 45, which can limit the buffer plate 46.

[0026] When the door plate is closed and rotated, it will drive the mounting plate 2 to rotate the connecting piece 3, and will be opposite with switch equipment 1, then connecting piece 3 will contact protruding portion 47 on buffer plate 46, and push buffer plate 46, so that rotating block 44 rotates along the surface of fixed rod 43, at this time torsional spring 45 is deformed to generate elastic force, at this time buffer plate 46 rotates clockwise, the right end of the clockwise rotating buffer plate 46 will be pressed down and attached to the surface of connecting piece 3, under the action of friction, the connecting piece 3 can be buffered and slowed down, effectively avoiding that the mounting plate 2 and the connecting piece 3 directly impact the switch equipment 1, and the beneficial effects of buffering and protecting the switch equipment 1.

[0027] The above merely describes preferred examples of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An improved construction electromagnetic safety switch comprising a switch device (1) mounted on a door frame, a mounting plate (2) mounted on a door panel, and a connecting member (3) provided on the mounting plate (2), characterized in that: Also include buffer structure (4), the switch device (1) is provided with buffer structure (4), buffer structure (4) includes fixed frame (41), the fixed frame (41) is provided with screw rod seat (42), the inside of fixed frame (41) is provided with fixed rod (43), fixed rod (43) is connected with rotating block (44), the surface of fixed rod (43) is connected with torsion spring (45), torsion spring (45) is connected with rotating block (44), the lower end of rotating block (44) is provided with buffer plate (46), the lower end of buffer plate (46) is provided with convex part (47).

2. The improved electromagnetic safety switch of claim 1, wherein: The convex part (47) protrudes from the bottom end surface of the buffer plate (46), and the convex part (47) is a circular arc surface.

3. The improved electromagnetic safety switch of claim 2, wherein: The left end of the buffer plate (46) is provided with an inclined surface, and the convex part (47) is located above the buffer plate (46).

4. The improved electromagnetic safety switch of claim 1, wherein: The right end of the bottom end surface of the buffer plate (46) is provided with a buffer pad (48), and the surface of the buffer pad (48) is a circular arc surface.

5. The improved electromagnetic safety switch of claim 2, wherein: The buffer plate (46) rotates an angle of three degrees under the action of the convex part (47).

6. The improved electromagnetic safety switch of claim 1, wherein: The inside of the fixed frame (41) is provided with a baffle (49), and the buffer plate (46) is attached to the baffle (49) under the action of the torsion spring (45).

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