Two-way electromagnetic safety door switch mounting structure

Abstract

The utility model discloses a two-way electromagnetic safety door switch mounting structure which comprises a two-way electromagnetic safety door switch body and a connecting line, a mounting frame is arranged on the rear side of the two-way electromagnetic safety door switch body, and a limiting anti-folding mechanism is arranged on the front side of the mounting frame. The limiting anti-folding mechanism comprises a first protective pad, a limiting ring, a second protective pad and an anti-folding rubber sleeve, the first protective pad is embedded in the inner wall of the limiting ring, and the problems that after most of existing two-way electromagnetic safety door switches are installed, a structure for limiting and preventing folding damage of connecting wires is not provided, and when equipment is maintained, the connecting wires cannot be damaged are solved. The problems that the connecting line is easily pulled by mistake, the interface of the connecting line and the two-way electromagnetic safety door switch is loosened, the contact is poor, the normal work of the two-way electromagnetic safety door switch is influenced, the power-off sensitivity of equipment is influenced, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The utility model relates to the field of two-way electromagnetic safety door switches, in particular to an installation structure of a two-way electromagnetic safety door switch. Background Art

[0002] The two-way electromagnetic safety door switch is a device for safety protection, usually composed of an electromagnetic induction part, a mechanical switch part and a housing. The electromagnetic induction part is responsible for detecting the state of the safety door. When the safety door is closed, a magnetic field is generated to make the switch in a closed state. The mechanical switch part makes physical connection or disconnection under the action of electromagnetic induction to realize the on-off control of the circuit. Compared with the four-way electromagnetic safety door switch, it has a smaller volume.

[0003] The two-way electromagnetic safety door switch is usually installed on the edge of the protective door or the door frame of a machine tool, a lathe and a drill press. When the protective door is opened, the safety door switch immediately acts to stop the equipment from running, preventing the operator from accidentally contacting the dangerous part during the operation of the equipment;

[0004] After the applicant's retrieval and inspection of the installation method of the two-way electromagnetic safety door switch, the following problems are found: After most of the existing installations of the two-way electromagnetic safety door switch, there is no structure for limiting and preventing the connection wire from being damaged. During the maintenance of the equipment, it is easy to accidentally pull the connection wire, resulting in loosening at the interface between the connection wire and the two-way electromagnetic safety door switch, resulting in poor contact, affecting the normal operation of the two-way electromagnetic safety door switch, affecting the sensitivity of power-off of the equipment, and there are safety hazards. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide an installation structure of a two-way electromagnetic safety door switch, aiming to solve the problems that after most of the existing installations of the two-way electromagnetic safety door switch, there is no structure for limiting and preventing the connection wire from being damaged. During the maintenance of the equipment, it is easy to accidentally pull the connection wire, resulting in loosening at the interface between the connection wire and the two-way electromagnetic safety door switch, resulting in poor contact, affecting the normal operation of the two-way electromagnetic safety door switch, affecting the sensitivity of power-off of the equipment, and there are safety hazards.

[0006] To achieve the above purpose, an installation structure of a two-way electromagnetic safety door switch proposed by the utility model includes a two-way electromagnetic safety door switch body and a connection wire. An installation frame is arranged at the rear side of the two-way electromagnetic safety door switch body, and a limiting and anti-folding mechanism is arranged at the front side of the installation frame;

[0007] The limit and anti-bending mechanism includes a first protective pad, a limit ring, a second protective pad, and an anti-bending rubber sleeve. The first protective pad is inlaid on the inner wall of the limit ring. The second protective pad is arranged on the front side of the first protective pad. The top of the anti-bending rubber sleeve is fixedly communicated with the bottom of the limit ring.

[0008] Preferably, a rotating rod is arranged on the front side of the limit ring. The rotating rod is threadedly connected inside the limit ring. A screwing block is fixedly connected to the front side of the rotating rod.

[0009] Preferably, a limit disc is rotatably connected to the rear side of the rotating rod. The front side of the second protective pad is fixedly connected to the rear side of the limit disc. Both the limit disc and the second protective pad are located inside the limit ring.

[0010] Preferably, a connecting block is fixedly connected to the rear side of the limit ring. A support plate is fixedly connected to the rear side of the connecting block. The top of the support plate is fixedly connected to the bottom of the mounting frame.

[0011] Preferably, a plug is fixedly connected to the rear side of the two-way electromagnetic safety door switch body. A slot is formed inside the mounting frame. The plug is movably inserted into the slot.

[0012] Preferably, elastic pieces are fixedly connected to both sides of the top of the mounting frame. A first limit block is fixedly connected to the front side of the elastic piece. Second limit blocks are fixedly connected to both sides of the rear side of the two-way electromagnetic safety door switch body. The surface of the first limit block is in contact with the surface of the second limit block.

[0013] Preferably, a pull rod is fixedly connected to the top of the plug. A pull ring is fixedly connected to the top of the pull rod.

[0014] Preferably, mounting holes are fixedly connected to the four corners of the front side of the mounting frame.

[0015] In the technical solution of the present utility model, the mounting frame can be installed at the required position by passing an external bolt through the mounting holes at the four corners on the front side of the mounting frame. Then, the connecting wire is passed through the limiting ring of the anti-bending rubber sleeve box, and the connecting wire is connected to the two-way electromagnetic safety door switch body. At this time, hold the two-way electromagnetic safety door switch body and insert the plug block into the slot, and the two-way electromagnetic safety door switch body can be connected to the mounting frame. During the process of completely moving the two-way electromagnetic safety door switch body downward into place, at this time, the second limiting block squeezes the first limiting block, causing the elastic piece to deform backward, so that the first limiting block moves downward past the second limiting block. At this time, the elastic piece rebounds, so that the surface of the first limiting block contacts the surface of the second limiting block, and the first limiting block and the second limiting block are clamped, and the two-way electromagnetic safety door switch body can be limited to the front side of the mounting frame. Then, hold the screwing block and rotate it. When the screwing block rotates, it can drive the rotating rod to rotate. The rotating rod is threadedly connected to the inside of the limiting ring. When the rotating rod rotates, the rotating rod can move backward, thereby driving the limiting disc and the second protective pad to move backward, so that the rear side of the second protective pad contacts the surface of the connecting wire. Then continue to rotate the rotating rod. Since the rear side of the rotating rod is rotatably connected to the front side of the limiting disc, after the second protective pad contacts the external connection, the rotating rod can continue to rotate so that the second protective pad continues to move backward, so that the first protective pad and the second protective pad stably clamp the connecting wire, avoiding accidental pulling of the connecting wire. The elastic supporting force of the anti-bending rubber sleeve can prevent the connecting wire from being damaged by folding, avoiding the problem that most of the existing installations of two-way electromagnetic safety door switches do not have a structure for limiting and preventing damage to the connecting wire. During the maintenance of the equipment, it is easy to accidentally pull the connecting wire, resulting in loosening at the interface between the connecting wire and the two-way electromagnetic safety door switch, resulting in poor contact, affecting the normal operation of the two-way electromagnetic safety door switch, affecting the sensitivity of power-off of the equipment, and there is a potential safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 It is a three-dimensional connection schematic diagram of the mounting frame and the support plate in an embodiment of the present utility model;

[0019] Figure 3This is a three-dimensional exploded view of the limit ring and the anti-bending rubber sleeve in the embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional structural view of the rear side of the two-way electromagnetic safety door switch body in the embodiment of the present utility model;

[0021] Figure 5 In the embodiment of the present utility model Figure 2 A partial enlarged view at position A.

[0022] Explanation of the reference numerals in the drawings: 1. Two-way electromagnetic safety door switch body; 2. Mounting bracket; 3. Limit and anti-bending mechanism; 301. First protective pad; 302. Limit ring; 303. Second protective pad; 304. Anti-bending rubber sleeve; 4. Screw block; 5. Mounting hole; 6. Slot; 7. Support plate; 8. Connecting block; 9. Limit disc; 10. Rotating rod; 11. Insert block; 12. Second limit block; 13. Pull rod; 14. Pull ring; 15. Elastic piece; 16. First limit block; 17. Connecting wire.

[0023] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] It should be noted that all the directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, the descriptions such as "first" and "second" in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] Moreover, the technical solutions among the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] The present utility model provides an installation structure for a two-way electromagnetic safety door switch, aiming to solve the problem that after most existing two-way electromagnetic safety door switches are installed, there is no structure for limiting and preventing the connection wires from being folded. When maintaining the equipment, it is easy to accidentally pull the connection wires, resulting in loosening at the interface between the connection wires and the two-way electromagnetic safety door switch, causing poor contact, affecting the normal operation of the two-way electromagnetic safety door switch, affecting the sensitivity of power-off of the equipment, and posing a safety hazard.

[0029] As Figures 1-5 shown, an installation structure for a two-way electromagnetic safety door switch provided by an embodiment of the present utility model includes a two-way electromagnetic safety door switch body 1 and a connection wire 17. A mounting bracket 2 is provided at the rear side of the two-way electromagnetic safety door switch body 1, and a limiting and anti-folding mechanism 3 is provided at the front side of the mounting bracket 2;

[0030] The limiting and anti-folding mechanism 3 includes a first protective pad 301, a limiting ring 302, a second protective pad 303, and an anti-folding rubber sleeve 304. The first protective pad 301 is embedded in the inner wall of the limiting ring 302, the second protective pad 303 is provided at the front side of the first protective pad 301, and the top of the anti-folding rubber sleeve 304 is fixedly communicated with the bottom of the limiting ring 302.

[0031] In the technical solution of the present utility model, the mounting bracket 2 can be mounted at the required position by passing an external bolt through the mounting holes 5 at the four corners of the front side of the mounting bracket 2. Then, the connecting wire 17 is passed through the anti-bending rubber sleeve 304 and the limiting ring 302, and the connecting wire 17 is connected to the two-way electromagnetic safety door switch body 1. At this time, hold the two-way electromagnetic safety door switch body 1 and insert the insertion block 11 into the slot 6, then the two-way electromagnetic safety door switch body 1 can be connected to the mounting bracket 2. During the process of completely moving the two-way electromagnetic safety door switch body 1 downward into place, at this time, the second limiting block 12 squeezes the first limiting block 16, causing the elastic piece 15 to deform backward, so that the first limiting block 16 moves downward past the second limiting block 12. At this time, the elastic piece 15 rebounds, so that the surface of the first limiting block 16 contacts the surface of the second limiting block 12, and the first limiting block 16 and the second limiting block 12 are clamped, then the two-way electromagnetic safety door switch body 1 can be limited to the front side of the mounting bracket 2. Then, hold the screwing block 4 and rotate it. When the screwing block 4 rotates, it drives the rotating rod 10 to rotate. The rotating rod 10 is threadedly connected to the inside of the limiting ring 302. When the rotating rod 10 rotates, the rotating rod 10 moves backward, driving the limiting disc 9 and the second protective pad 303 to move backward, so that the rear side of the second protective pad 303 contacts the surface of the connecting wire 17. Then continue to rotate the rotating rod 10. Since the rear side of the rotating rod 10 is rotatably connected to the front side of the limiting disc 9, after the second protective pad 303 contacts the external connection, the rotating rod 10 can continue to rotate, causing the second protective pad to continue to move backward, so that the first protective pad 301 and the second protective pad 303 stably clamp the connecting wire 17, avoiding accidental pulling of the connecting wire 17. The elastic supporting force of the anti-bending rubber sleeve 304 can prevent the connecting wire 17 from being damaged by folding. It avoids the problem that most of the existing installations of two-way electromagnetic safety door switches do not have a structure for limiting and preventing damage to the connecting wire. During the maintenance of the equipment, it is easy to accidentally pull the connecting wire, resulting in loosening at the interface between the connecting wire and the two-way electromagnetic safety door switch, causing poor contact, affecting the normal operation of the two-way electromagnetic safety door switch, affecting the sensitivity of power-off of the equipment, and posing a safety hazard.

[0032] Please refer to Figure 3 As shown in the figure, a rotating rod 10 is provided on the front side of the limiting ring 302. The rotating rod 10 is threadedly connected to the inside of the limiting ring 302, and the front side of the rotating rod 10 is fixedly connected to a screwing block 4. In this embodiment, by holding the screwing block 4 and rotating it, the rotating rod 10 can be rotated. The rotating rod 10 is threadedly connected to the inside of the limiting ring 302. When the rotating rod 10 rotates, the rotating rod 10 moves backward, achieving the effect of facilitating the movement of the rotating rod 10.

[0033] Further, please continue to refer to Figure 1 and Figure 3The rear side of the rotating rod 10 is rotatably connected to the limiting plate 9, the front side of the second protection pad 303 is fixedly connected to the rear side of the limiting plate 9, and the limiting plate 9 and the second protection pad 303 are both located inside the limiting ring 302. In this embodiment, the rear side of the rotating rod 10 is rotatably connected to the front side of the limiting plate 9, so that the rotating rod 10 can continue to rotate after the second protection pad 303 contacts the external connection, so that the second protection pad continues to move backward, so that the first protection pad 301 and the second protection pad 303 stably clamp the connecting line 17, achieving the effect of conveniently clamping the connecting line 17 stably.

[0034] Please continue to refer to Figure 2 The rear side of the limit ring 302 is fixedly connected with a connecting block 8, the rear side of the connecting block 8 is fixedly connected with a supporting plate 7, and the top of the supporting plate 7 is fixedly connected to the bottom of the mounting frame 2. In this embodiment, the supporting plate 7 and the supporting block can support the limit ring 302 and the anti-bending rubber sleeve 304 by fixing the rear side of the limit block with the front side of the supporting block, and fixing the rear side of the supporting block with the front side of the supporting plate 7, so as to achieve the effect of supporting the limit ring 302 and the anti-bending rubber sleeve 304.

[0035] Please refer to Figure 2 and Figure 4 The rear side of the two-way electromagnetic safety door switch body 1 is fixedly connected with an insert block 11, and a slot 6 is provided inside the mounting frame 2, and the insert block 11 is movably inserted inside the slot 6. In this embodiment, the two-way electromagnetic safety door switch body 1 can be connected to the mounting frame 2 by holding the two-way electromagnetic safety door switch body 1 and inserting the insert block 11 into the slot 6, thereby achieving the effect of conveniently connecting the two-way electromagnetic safety door switch body 1 to the mounting frame 2.

[0036] Also, please refer to Figure 2 , Figure 4 and Figure 5 , both sides of the top of the mounting frame 2 are fixedly connected with spring pieces 15, the front side of the spring pieces 15 is fixedly connected with a first limit block 16, and both sides of the rear side of the two-way electromagnetic safety door switch body 1 are fixedly connected with second limit blocks 12, and the surface of the first limit block 16 contacts the surface of the second limit block 12. In this embodiment, when the two-way electromagnetic safety door switch body 1 is completely moved downward into position, the second limit block 12 squeezes the first limit block 16, so that the spring piece 15 is deformed backward, so that the first limit block 16 passes over the second limit block 12 downward, and the spring piece 15 rebounds at this time, so that the surface of the first limit block 16 contacts the surface of the second limit block 12, so that the first limit block 16 and the second limit block 12 are clamped, and the two-way electromagnetic safety door switch body 1 can be limited at the front side of the mounting frame 2, so as to achieve the effect of conveniently limiting the two-way electromagnetic safety door switch body 1 at the front side of the mounting frame 2.

[0037] Please refer to Figure 2 , Figure 4 and Figure 5 The top of the plug block 11 is fixedly connected with a pull rod 13, and the top of the pull rod 13 is fixedly connected with a pull ring 14. In this embodiment, the second protective pad 303 is disengaged from the connecting line 17 by rotating the rotating rod 10, and then the pull ring 14 is pulled upward to deform the spring piece 15, so that the second limit block 12 passes over the first limit block 16 upward, and the plug block 11 can be pulled out from the slot 6, so that the two-way electromagnetic safety door switch body 1 can be quickly disassembled, thereby achieving the effect of facilitating the rapid disassembly of the two-way electromagnetic safety door switch body 1.

[0038] Also, please refer to Figure 2 The four corners of the front side of the mounting frame 2 are fixedly connected with mounting holes 5. In this embodiment, the mounting frame 2 can be installed at a desired position by passing external bolts through the mounting holes 5 at the four corners of the front side of the mounting frame 2, thereby achieving the effect of facilitating the installation of the mounting frame 2.

[0039] It should be noted that the two-way electromagnetic safety door switch is an existing published mature technology, and has various appearances, so it will not be described in detail here.

[0040] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A two-way electromagnetic safety door switch installation structure, characterized in that: The two-way electromagnetic safety door switch installation structure comprises a two-way electromagnetic safety door switch body (1) and a connecting line (17); a mounting frame (2) is arranged on the rear side of the two-way electromagnetic safety door switch body (1); and a limited position anti-bending mechanism (3) is arranged on the front side of the mounting frame (2); The position-limiting and anti-bending mechanism (3) comprises a first protective pad (301), a position-limiting ring (302), a second protective pad (303) and an anti-bending rubber sleeve (304); the first protective pad (301) is embedded in the inner wall of the position-limiting ring (302); the second protective pad (303) is arranged on the front side of the first protective pad (301); and the top of the anti-bending rubber sleeve (304) is fixedly connected to the bottom of the position-limiting ring (302).

2. The two-way electromagnetic safety door switch installation structure according to claim 1 is characterized in that: A rotating rod (10) is arranged on the front side of the limiting ring (302), the rotating rod (10) is threadedly connected to the inside of the limiting ring (302), and a screw block (4) is fixedly connected to the front side of the rotating rod (10).

3. The two-way electromagnetic safety door switch installation structure according to claim 2 is characterized in that: The rear side of the rotating rod (10) is rotatably connected to the limiting plate (9), the front side of the second protective pad (303) is fixedly connected to the rear side of the limiting plate (9), and the limiting plate (9) and the second protective pad (303) are both located inside the limiting ring (302).

4. The two-way electromagnetic safety door switch installation structure according to claim 1, characterized in that: The rear side of the limiting ring (302) is fixedly connected to a connecting block (8), the rear side of the connecting block (8) is fixedly connected to a supporting plate (7), and the top of the supporting plate (7) is fixedly connected to the bottom of the mounting frame (2).

5. The two-way electromagnetic safety door switch installation structure according to claim 1, characterized in that: An insert block (11) is fixedly connected to the rear side of the two-way electromagnetic safety door switch body (1), a slot (6) is provided inside the mounting frame (2), and the insert block (11) is movably inserted into the slot (6).

6. The two-way electromagnetic safety door switch installation structure according to claim 1, characterized in that: Both sides of the top of the mounting frame (2) are fixedly connected with spring plates (15), the front side of the spring plates (15) is fixedly connected with a first limit block (16), and both sides of the rear side of the two-way electromagnetic safety door switch body (1) are fixedly connected with a second limit block (12), and the surface of the first limit block (16) is in contact with the surface of the second limit block (12).

7. The two-way electromagnetic safety door switch installation structure according to claim 5, characterized in that: A pull rod (13) is fixedly connected to the top of the insert block (11), and a pull ring (14) is fixedly connected to the top of the pull rod (13).

8. The two-way electromagnetic safety door switch installation structure according to claim 1, characterized in that: The four corners on the front side of the mounting frame (2) are all fixedly connected with mounting holes (5).

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